Difference between revisions of "HAEM5:Extranodal NK/T-cell lymphoma"

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[[HAEM5:Table_of_Contents|Haematolymphoid Tumours (WHO Classification, 5th ed.)]]
 
[[HAEM5:Table_of_Contents|Haematolymphoid Tumours (WHO Classification, 5th ed.)]]
  
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{{Under Construction}}
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==Primary Authors*==
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<span style="color:#0070C0">(General Instructions – The main focus of these pages is the clinically significant genetic alterations in each disease type. Use [https://www.genenames.org/ <u>HUGO-approved gene names and symbols</u>] (italicized when appropriate), [https://varnomen.hgvs.org/ HGVS-based nomenclature for variants], as well as generic names of drugs and testing platforms or assays if applicable. Please complete tables whenever possible and do not delete them (add N/A if not applicable in the table and delete the examples); to add (or move) a row or column to a table, click nearby within the table and select the > symbol that appears to be given options. Please do not delete or alter the section headings. The use of bullet points alongside short blocks of text rather than only large paragraphs is encouraged. Additional instructions below in italicized blue text should not be included in the final page content. Please also see </span><u>[[Author_Instructions]]</u><span style="color:#0070C0"> and [[Frequently Asked Questions (FAQs)|<u>FAQs</u>]] as well as contact your [[Leadership|<u>Associate Editor</u>]] or [mailto:CCGA@cancergenomics.org <u>Technical Support</u>])</span>
 
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==Primary Author(s)*==
 
  
 
Teodora Popa, MD, Queen's University
 
Teodora Popa, MD, Queen's University
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__TOC__
 
__TOC__
  
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==Cancer Category / Type==
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==WHO Classification of Disease==
  
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Mature T-cell and NK-cell neoplasms
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{| class="wikitable"
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!Structure
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==Cancer Sub-Classification / Subtype==
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!Disease
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|-
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EBV-positive T-cell and NK-cell neoplasms
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|Book
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|Haematolymphoid Tumours (5th ed.)
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|-
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|Category
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|T-cell and NK-cell lymphoid proliferations and lymphomas
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|-
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|Family
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|Mature T-cell and NK-cell neoplasms
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|-
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|Type
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|EBV-positive NK-cell and T-cell lymphomas
 +
|-
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|Subtype(s)
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|Extranodal NK/T-cell lymphoma
 +
|}
  
 
==Definition / Description of Disease==
 
==Definition / Description of Disease==
  
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Extranodal NK/T-cell lymphoma (ENKTL) is a distinct entity in the [https://tumourclassification.iarc.who.int/chaptercontent/63/258 5th edition World Health Organization (WHO) classification system]. It is referred to as "extranodal NK/T-cell lymphoma, nasal type" in the 2016 WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues revised 4th edition<ref name=":5">Chan J. K. C., et al., (2017). Extranodal NK/T-cell lymphoma, nasal type, in World Health Organization Classification of Tumours of Haematopoietic and Lymphoid Tissues, Revised 4th edition. Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J, Arber DA, Hasserjian RP, Le Beau MM, Orazi A, and Siebert R, Editors. Revised 4th Edition. IARC Press: Lyon, France, p.368-371.</ref>.
+
*Lymphoma of NK or T-cell lineage strongly associated with Epstein-Barr virus<ref name=":6">{{Cite journal|last=Jaffe|first=E. S.|last2=Krenacs|first2=L.|last3=Kumar|first3=S.|last4=Kingma|first4=D. W.|last5=Raffeld|first5=M.|date=1999-01|title=Extranodal peripheral T-cell and NK-cell neoplasms|url=https://pubmed.ncbi.nlm.nih.gov/9894469|journal=American Journal of Clinical Pathology|volume=111|issue=1 Suppl 1|pages=S46–55|issn=0002-9173|pmid=9894469}}</ref>. The lineage (NK or T-cell) has no clinical significance<ref>{{Cite journal|last=Wang|first=Hua|last2=Fu|first2=Bi-Bo|last3=Gale|first3=Robert Peter|last4=Liang|first4=Yang|date=2021-09|title=NK-/T-cell lymphomas|url=https://pubmed.ncbi.nlm.nih.gov/34117356|journal=Leukemia|volume=35|issue=9|pages=2460–2468|doi=10.1038/s41375-021-01313-2|issn=1476-5551|pmc=8410593|pmid=34117356}}</ref>.
−
 
+
*Divided into nasal and non-nasal types, the latter most often occurring in the skin and intestinal tract<ref name=":5">Chan J. K. C., et al., (2017). Extranodal NK/T-cell lymphoma, nasal type, in World Health Organization Classification of Tumours of Haematopoietic and Lymphoid Tissues, Revised 4th edition. Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J, Arber DA, Hasserjian RP, Le Beau MM, Orazi A, and Siebert R, Editors. Revised 4th Edition. IARC Press: Lyon, France, p.368-371.</ref><ref name=":6" />.
−
*ENKTL is a lymphoma of NK or T-cell lineage strongly associated with Epstein-Barr virus<ref name=":6">{{Cite journal|last=Jaffe|first=E. S.|last2=Krenacs|first2=L.|last3=Kumar|first3=S.|last4=Kingma|first4=D. W.|last5=Raffeld|first5=M.|date=1999-01|title=Extranodal peripheral T-cell and NK-cell neoplasms|url=https://pubmed.ncbi.nlm.nih.gov/9894469|journal=American Journal of Clinical Pathology|volume=111|issue=1 Suppl 1|pages=S46–55|issn=0002-9173|pmid=9894469}}</ref>.
 
 
*It is a destructive angiocentric disease characterized by vascular destruction and necrosis<ref>{{Cite journal|last=Aviles|first=A.|last2=Rodriguez|first2=L.|last3=Guzman|first3=R.|last4=Talavera|first4=A.|last5=Garcia|first5=E. L.|last6=Diaz-Maqueo|first6=J. C.|date=1992|title=Angiocentric T-cell lymphoma of the nose, paranasal sinuses and hard palate|url=https://pubmed.ncbi.nlm.nih.gov/1398510|journal=Hematological Oncology|volume=10|issue=3-4|pages=141–147|doi=10.1002/hon.2900100303|issn=0278-0232|pmid=1398510}}</ref>.
 
*It is a destructive angiocentric disease characterized by vascular destruction and necrosis<ref>{{Cite journal|last=Aviles|first=A.|last2=Rodriguez|first2=L.|last3=Guzman|first3=R.|last4=Talavera|first4=A.|last5=Garcia|first5=E. L.|last6=Diaz-Maqueo|first6=J. C.|date=1992|title=Angiocentric T-cell lymphoma of the nose, paranasal sinuses and hard palate|url=https://pubmed.ncbi.nlm.nih.gov/1398510|journal=Hematological Oncology|volume=10|issue=3-4|pages=141–147|doi=10.1002/hon.2900100303|issn=0278-0232|pmid=1398510}}</ref>.
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*It can be clinically divided into nasal and non-nasal types, the latter most often occurring in the skin and intestinal tract<ref name=":5" /><ref name=":6" />.
 
−
*The lineage (NK or T-cell) has no clinical significance<ref>{{Cite journal|last=Wang|first=Hua|last2=Fu|first2=Bi-Bo|last3=Gale|first3=Robert Peter|last4=Liang|first4=Yang|date=2021-09|title=NK-/T-cell lymphomas|url=https://pubmed.ncbi.nlm.nih.gov/34117356|journal=Leukemia|volume=35|issue=9|pages=2460–2468|doi=10.1038/s41375-021-01313-2|issn=1476-5551|pmc=8410593|pmid=34117356}}</ref>.
 
  
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*The differential diagnosis includes sinonasal carcinomas and other lymphomas of the nasal cavity, such as diffuse large B-cell lymphoma<ref>{{Cite journal|last=Steele|first=Toby O.|last2=Buniel|first2=Maria C.|last3=Mace|first3=Jess C.|last4=El Rassi|first4=Edward|last5=Smith|first5=Timothy L.|date=2016-09|title=Lymphoma of the nasal cavity and paranasal sinuses: A case series|url=https://pubmed.ncbi.nlm.nih.gov/27657899|journal=American Journal of Rhinology & Allergy|volume=30|issue=5|pages=335–339|doi=10.2500/ajra.2016.30.4347|issn=1945-8932|pmid=27657899}}</ref>.
+
*Differential diagnosis: sinonasal carcinomas and other lymphomas of the nasal cavity, such as diffuse large B-cell lymphoma<ref>{{Cite journal|last=Steele|first=Toby O.|last2=Buniel|first2=Maria C.|last3=Mace|first3=Jess C.|last4=El Rassi|first4=Edward|last5=Smith|first5=Timothy L.|date=2016-09|title=Lymphoma of the nasal cavity and paranasal sinuses: A case series|url=https://pubmed.ncbi.nlm.nih.gov/27657899|journal=American Journal of Rhinology & Allergy|volume=30|issue=5|pages=335–339|doi=10.2500/ajra.2016.30.4347|issn=1945-8932|pmid=27657899}}</ref>.
  
 
==Synonyms / Terminology==
 
==Synonyms / Terminology==
  
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Extranodal NK/T-cell lymphoma, nasal type; EBV-positive extranodal NK/T-cell lymphoma; angiocentric lymphoma (not recommended); lethal midline granuloma (historical)
+
Extranodal NK/T-cell lymphoma, nasal type
 +
 
 +
EBV-positive extranodal NK/T-cell lymphoma
 +
 
 +
Not recommended: angiocentric lymphoma; lethal midline granuloma (historical)
  
 
==Epidemiology / Prevalence==
 
==Epidemiology / Prevalence==
  
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ENKTL is most prevalent in East Asia and Latin America. It represents less than 1% of non-Hodgkin lymphomas in the United States, with the highest incidence among Asian Pacific Islanders and Hispanic populations<ref>{{Cite journal|last=Haverkos|first=Bradley M.|last2=Pan|first2=Zenggang|last3=Gru|first3=Alejandro A.|last4=Freud|first4=Aharon G.|last5=Rabinovitch|first5=Rachel|last6=Xu-Welliver|first6=Meng|last7=Otto|first7=Brad|last8=Barrionuevo|first8=Carlos|last9=Baiocchi|first9=Robert A.|date=2016-12|title=Extranodal NK/T-cell lymphoma, nasal type (ENKTL-NT): An update on epidemiology, clinical presentation, and natural history in North American and European cases|url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5199232/|journal=Current hematologic malignancy reports|volume=11|issue=6|pages=514–527|doi=10.1007/s11899-016-0355-9|issn=1558-8211|pmc=5199232|pmid=27778143}}</ref>.
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*Most prevalent in East Asia and Latin America.
 +
*Represents less than 1% of non-Hodgkin lymphomas in the United States
 +
**Highest incidence among Asian Pacific Islanders and Hispanic populations<ref>{{Cite journal|last=Haverkos|first=Bradley M.|last2=Pan|first2=Zenggang|last3=Gru|first3=Alejandro A.|last4=Freud|first4=Aharon G.|last5=Rabinovitch|first5=Rachel|last6=Xu-Welliver|first6=Meng|last7=Otto|first7=Brad|last8=Barrionuevo|first8=Carlos|last9=Baiocchi|first9=Robert A.|date=2016-12|title=Extranodal NK/T-cell lymphoma, nasal type (ENKTL-NT): An update on epidemiology, clinical presentation, and natural history in North American and European cases|url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5199232/|journal=Current hematologic malignancy reports|volume=11|issue=6|pages=514–527|doi=10.1007/s11899-016-0355-9|issn=1558-8211|pmc=5199232|pmid=27778143}}</ref>.
  
 
==Clinical Features==
 
==Clinical Features==
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−
Common clinical presentations of nasal-type ENKTL include nasal mass, obstruction, and bleeding. Patients with abdominal involvement may present with abdominal pain, gastrointestinal (GI) bleed, or perforation<ref name=":0">Thida AM, Gohari P. Extranodal NK-Cell Lymphoma. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: <nowiki>https://www.ncbi.nlm.nih.gov/books/NBK559207/</nowiki></ref>. The presence of B symptoms is associated with higher clinical stage<ref>{{Cite journal|last=Takahara|first=Miki|last2=Kumai|first2=Takumi|last3=Kishibe|first3=Kan|last4=Nagato|first4=Toshihiro|last5=Harabuchi|first5=Yasuaki|date=2021-06-25|title=Extranodal NK/T-Cell Lymphoma, Nasal Type: Genetic, Biologic, and Clinical Aspects with a Central Focus on Epstein-Barr Virus Relation|url=https://pubmed.ncbi.nlm.nih.gov/34202088|journal=Microorganisms|volume=9|issue=7|pages=1381|doi=10.3390/microorganisms9071381|issn=2076-2607|pmc=8304202|pmid=34202088}}</ref>.
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|'''Signs and Symptoms'''
 
|'''Signs and Symptoms'''
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Hoarseness, dysphagia, halitosis, airway obstruction, dysphonia
 
Hoarseness, dysphagia, halitosis, airway obstruction, dysphonia
  
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Abdominal pain, GI bleeding, bowel perforation
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Abdominal pain, GI bleeding, bowel perforation<ref name=":0">Thida AM, Gohari P. Extranodal NK-Cell Lymphoma. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: <nowiki>https://www.ncbi.nlm.nih.gov/books/NBK559207/</nowiki></ref>
  
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B symptoms (fever, weight loss, night sweats)
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B symptoms (fever, weight loss, night sweats) associated with higher clinical stage<ref>{{Cite journal|last=Takahara|first=Miki|last2=Kumai|first2=Takumi|last3=Kishibe|first3=Kan|last4=Nagato|first4=Toshihiro|last5=Harabuchi|first5=Yasuaki|date=2021-06-25|title=Extranodal NK/T-Cell Lymphoma, Nasal Type: Genetic, Biologic, and Clinical Aspects with a Central Focus on Epstein-Barr Virus Relation|url=https://pubmed.ncbi.nlm.nih.gov/34202088|journal=Microorganisms|volume=9|issue=7|pages=1381|doi=10.3390/microorganisms9071381|issn=2076-2607|pmc=8304202|pmid=34202088}}</ref>
 
|-
 
|-
 
|'''Laboratory Findings'''
 
|'''Laboratory Findings'''
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==Sites of Involvement==
 
==Sites of Involvement==
  
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Most cases of ENKTL are nasal type, meaning they involve the upper aerodigestive tract. Extranasal ENKTL may involve the skin, testis, and gastrointestinal tract<ref name=":0" />. Bone marrow involvement is uncommon<ref>{{Cite journal|last=Wong|first=K. F.|last2=Chan|first2=J. K.|last3=Cheung|first3=M. M.|last4=So|first4=J. C.|date=2001-02|title=Bone marrow involvement by nasal NK cell lymphoma at diagnosis is uncommon|url=https://pubmed.ncbi.nlm.nih.gov/11211616|journal=American Journal of Clinical Pathology|volume=115|issue=2|pages=266–270|doi=10.1309/E5PR-6A9R-Q02N-8QVW|issn=0002-9173|pmid=11211616}}</ref>.
+
*Most are nasal type involving the upper aerodigestive tract
 +
*Extranasal type may involve skin, testis, and gastrointestinal tract<ref name=":0" />.
 +
*Bone marrow involvement is uncommon<ref>{{Cite journal|last=Wong|first=K. F.|last2=Chan|first2=J. K.|last3=Cheung|first3=M. M.|last4=So|first4=J. C.|date=2001-02|title=Bone marrow involvement by nasal NK cell lymphoma at diagnosis is uncommon|url=https://pubmed.ncbi.nlm.nih.gov/11211616|journal=American Journal of Clinical Pathology|volume=115|issue=2|pages=266–270|doi=10.1309/E5PR-6A9R-Q02N-8QVW|issn=0002-9173|pmid=11211616}}</ref>.
  
 
==Morphologic Features==
 
==Morphologic Features==
 +
[[File:Extranodal NK T-cell lymphoma, nasal type.png|thumb|Extranodal NK T-cell lymphoma, nasal type (HPS). Angiocentric and angiodestructive growth pattern.]]
 +
[[File:Extranodal NK T-cell lymphoma, nasal type.vsi(17.8X) snapshot.png|thumb|Extranodal NK T-cell lymphoma, nasal type (HPS). Angiocentric and angiodestructive growth pattern.]]
  
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*Diffuse lymphomatous infiltrate composed of small, medium, or large and anaplastic cells (or a mix of small and large cells). The cells have irregularly folded nuclei and moderate pale cytoplasm.
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*Diffuse infiltrate composed of admixture of small, medium, or large and anaplastic cells.
 +
*Cells have irregularly folded nuclei and moderate pale cytoplasm.
 
*Loss of mucosal glands.
 
*Loss of mucosal glands.
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*Angiocentric and angiodestructive growth pattern.
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*Angiocentric and angiodestructive growth pattern with coagulative necrosis.
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*Coagulative necrosis and apoptosis.
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*Usually see apoptotic cells and mitotic figures
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*Mitotic figures.
 
  
 
Pitfalls:
 
Pitfalls:
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==Immunophenotype==
 
==Immunophenotype==
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[[File:IHC NKTCL.png|thumb|Extranodal NK T-cell lymphoma stained with CD2 (top left), CD56 (red chromogen; top right), EBER in-situ hybridization (bottom left) and TIA1 (bottom right).]]
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The majority of cases are positive for cytoplasmic CD3ε, CD2, granzyme B, and TIA-1. Most ENKTLs are of NK-lineage and express CD56. Cases of T-lineage express T-cell receptor (TCR) and show clonal TCR gene rearrangements. All cases are EBV positive by in situ hybridization for Epstein-Barr virus-encoded small RNA (EBER). Other markers that may be expressed include HLA-DR, CD25, pSTAT3, CXCL13, IRF4/MUM1, CD16, Fas, FasL, MATK, and CD30<ref>{{Cite journal|last=Li|first=Shaoying|last2=Feng|first2=Xiaoli|last3=Li|first3=Ting|last4=Zhang|first4=Shuang|last5=Zuo|first5=Zhuang|last6=Lin|first6=Pei|last7=Konoplev|first7=Sergej|last8=Bueso-Ramos|first8=Carlos E.|last9=Vega|first9=Francisco|date=2013-01|title=Extranodal NK/T-cell lymphoma, nasal type: a report of 73 cases at MD Anderson Cancer Center|url=https://pubmed.ncbi.nlm.nih.gov/23232851|journal=The American Journal of Surgical Pathology|volume=37|issue=1|pages=14–23|doi=10.1097/PAS.0b013e31826731b5|issn=1532-0979|pmid=23232851}}</ref><ref>{{Cite journal|last=Jhuang|first=Jie-Yang|last2=Chang|first2=Sheng-Tsung|last3=Weng|first3=Shih-Feng|last4=Pan|first4=Shien-Tung|last5=Chu|first5=Pei-Yi|last6=Hsieh|first6=Pin-Pen|last7=Wei|first7=Chih-Hsin|last8=Chou|first8=Shih-Cheng|last9=Koo|first9=Chiew-Loon|date=2015-02|title=Extranodal natural killer/T-cell lymphoma, nasal type in Taiwan: a relatively higher frequency of T-cell lineage and poor survival for extranasal tumors|url=https://pubmed.ncbi.nlm.nih.gov/25554090|journal=Human Pathology|volume=46|issue=2|pages=313–321|doi=10.1016/j.humpath.2014.11.008|issn=1532-8392|pmid=25554090}}</ref><ref>{{Cite journal|last=Pongpruttipan|first=Tawatchai|last2=Sukpanichnant|first2=Sanya|last3=Assanasen|first3=Thamathorn|last4=Wannakrairot|first4=Pongsak|last5=Boonsakan|first5=Paisarn|last6=Kanoksil|first6=Wasana|last7=Kayasut|first7=Kanita|last8=Mitarnun|first8=Winyou|last9=Khuhapinant|first9=Archrob|date=2012-04|title=Extranodal NK/T-cell lymphoma, nasal type, includes cases of natural killer cell and αβ, γδ, and αβ/γδ T-cell origin: a comprehensive clinicopathologic and phenotypic study|url=https://pubmed.ncbi.nlm.nih.gov/22314189|journal=The American Journal of Surgical Pathology|volume=36|issue=4|pages=481–499|doi=10.1097/PAS.0b013e31824433d8|issn=1532-0979|pmid=22314189}}</ref><ref>{{Cite journal|last=Jaffe|first=E. S.|last2=Chan|first2=J. K.|last3=Su|first3=I. J.|last4=Frizzera|first4=G.|last5=Mori|first5=S.|last6=Feller|first6=A. C.|last7=Ho|first7=F. C.|date=1996-01|title=Report of the Workshop on Nasal and Related Extranodal Angiocentric T/Natural Killer Cell Lymphomas. Definitions, differential diagnosis, and epidemiology|url=https://pubmed.ncbi.nlm.nih.gov/8540601|journal=The American Journal of Surgical Pathology|volume=20|issue=1|pages=103–111|doi=10.1097/00000478-199601000-00012|issn=0147-5185|pmid=8540601}}</ref><ref>{{Cite journal|last=Ohshima|first=K.|last2=Suzumiya|first2=J.|last3=Shimazaki|first3=K.|last4=Kato|first4=A.|last5=Tanaka|first5=T.|last6=Kanda|first6=M.|last7=Kikuchi|first7=M.|date=1997-11|title=Nasal T/NK cell lymphomas commonly express perforin and Fas ligand: important mediators of tissue damage|url=https://pubmed.ncbi.nlm.nih.gov/9416485|journal=Histopathology|volume=31|issue=5|pages=444–450|doi=10.1046/j.1365-2559.1997.2880887.x|issn=0309-0167|pmid=9416485}}</ref><ref>{{Cite journal|last=Takata|first=Katsuyoshi|last2=Hong|first2=Min-Eui|last3=Sitthinamsuwan|first3=Panitta|last4=Loong|first4=Florence|last5=Tan|first5=Soo-Yong|last6=Liau|first6=Jau-Yu|last7=Hsieh|first7=Pin-Pen|last8=Ng|first8=Siok-Bian|last9=Yang|first9=Sheau-Fang|date=2015-01|title=Primary cutaneous NK/T-cell lymphoma, nasal type and CD56-positive peripheral T-cell lymphoma: a cellular lineage and clinicopathologic study of 60 patients from Asia|url=https://pubmed.ncbi.nlm.nih.gov/25188863|journal=The American Journal of Surgical Pathology|volume=39|issue=1|pages=1–12|doi=10.1097/PAS.0000000000000312|issn=1532-0979|pmid=25188863}}</ref><ref>{{Cite journal|last=Kuo|first=Tseng-Tong|last2=Shih|first2=Lee-Yung|last3=Tsang|first3=Ngan-Ming|date=2004-10|title=Nasal NK/T cell lymphoma in Taiwan: a clinicopathologic study of 22 cases, with analysis of histologic subtypes, Epstein-Barr virus LMP-1 gene association, and treatment modalities|url=https://pubmed.ncbi.nlm.nih.gov/15494863|journal=International Journal of Surgical Pathology|volume=12|issue=4|pages=375–387|doi=10.1177/106689690401200410|issn=1066-8969|pmid=15494863}}</ref>.
+
<br />
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
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!Finding!!Marker
 
!Finding!!Marker
 
|-
 
|-
−
|Positive (universal)||CD2, CD56, cytoplasmic CD3ε, cytotoxic markers (TIA-1, granzyme B, perforin)
+
|Positive (universal)||EBER / EBV
−
EBER / EBV
+
|-
 +
|Positive (majority)
 +
|cytoplasmic CD3ε, CD2, CD56, granzyme B, and TIA-1
 
|-
 
|-
−
|Positive (subset)||TCR αβ/γδ, HLA-DR, CD25, pSTAT3, CXCL13, IRF4/MUM1, CD16, Fas, FasL, MATK, CD30
+
|Positive (subset)||TCR αβ/γδ, HLA-DR, CD25, pSTAT3, CXCL13, IRF4/MUM1, CD16, Fas, FasL, MATK, CD30<ref>{{Cite journal|last=Li|first=Shaoying|last2=Feng|first2=Xiaoli|last3=Li|first3=Ting|last4=Zhang|first4=Shuang|last5=Zuo|first5=Zhuang|last6=Lin|first6=Pei|last7=Konoplev|first7=Sergej|last8=Bueso-Ramos|first8=Carlos E.|last9=Vega|first9=Francisco|date=2013-01|title=Extranodal NK/T-cell lymphoma, nasal type: a report of 73 cases at MD Anderson Cancer Center|url=https://pubmed.ncbi.nlm.nih.gov/23232851|journal=The American Journal of Surgical Pathology|volume=37|issue=1|pages=14–23|doi=10.1097/PAS.0b013e31826731b5|issn=1532-0979|pmid=23232851}}</ref><ref>{{Cite journal|last=Jhuang|first=Jie-Yang|last2=Chang|first2=Sheng-Tsung|last3=Weng|first3=Shih-Feng|last4=Pan|first4=Shien-Tung|last5=Chu|first5=Pei-Yi|last6=Hsieh|first6=Pin-Pen|last7=Wei|first7=Chih-Hsin|last8=Chou|first8=Shih-Cheng|last9=Koo|first9=Chiew-Loon|date=2015-02|title=Extranodal natural killer/T-cell lymphoma, nasal type in Taiwan: a relatively higher frequency of T-cell lineage and poor survival for extranasal tumors|url=https://pubmed.ncbi.nlm.nih.gov/25554090|journal=Human Pathology|volume=46|issue=2|pages=313–321|doi=10.1016/j.humpath.2014.11.008|issn=1532-8392|pmid=25554090}}</ref><ref>{{Cite journal|last=Pongpruttipan|first=Tawatchai|last2=Sukpanichnant|first2=Sanya|last3=Assanasen|first3=Thamathorn|last4=Wannakrairot|first4=Pongsak|last5=Boonsakan|first5=Paisarn|last6=Kanoksil|first6=Wasana|last7=Kayasut|first7=Kanita|last8=Mitarnun|first8=Winyou|last9=Khuhapinant|first9=Archrob|date=2012-04|title=Extranodal NK/T-cell lymphoma, nasal type, includes cases of natural killer cell and αβ, γδ, and αβ/γδ T-cell origin: a comprehensive clinicopathologic and phenotypic study|url=https://pubmed.ncbi.nlm.nih.gov/22314189|journal=The American Journal of Surgical Pathology|volume=36|issue=4|pages=481–499|doi=10.1097/PAS.0b013e31824433d8|issn=1532-0979|pmid=22314189}}</ref><ref>{{Cite journal|last=Jaffe|first=E. S.|last2=Chan|first2=J. K.|last3=Su|first3=I. J.|last4=Frizzera|first4=G.|last5=Mori|first5=S.|last6=Feller|first6=A. C.|last7=Ho|first7=F. C.|date=1996-01|title=Report of the Workshop on Nasal and Related Extranodal Angiocentric T/Natural Killer Cell Lymphomas. Definitions, differential diagnosis, and epidemiology|url=https://pubmed.ncbi.nlm.nih.gov/8540601|journal=The American Journal of Surgical Pathology|volume=20|issue=1|pages=103–111|doi=10.1097/00000478-199601000-00012|issn=0147-5185|pmid=8540601}}</ref><ref>{{Cite journal|last=Ohshima|first=K.|last2=Suzumiya|first2=J.|last3=Shimazaki|first3=K.|last4=Kato|first4=A.|last5=Tanaka|first5=T.|last6=Kanda|first6=M.|last7=Kikuchi|first7=M.|date=1997-11|title=Nasal T/NK cell lymphomas commonly express perforin and Fas ligand: important mediators of tissue damage|url=https://pubmed.ncbi.nlm.nih.gov/9416485|journal=Histopathology|volume=31|issue=5|pages=444–450|doi=10.1046/j.1365-2559.1997.2880887.x|issn=0309-0167|pmid=9416485}}</ref><ref>{{Cite journal|last=Takata|first=Katsuyoshi|last2=Hong|first2=Min-Eui|last3=Sitthinamsuwan|first3=Panitta|last4=Loong|first4=Florence|last5=Tan|first5=Soo-Yong|last6=Liau|first6=Jau-Yu|last7=Hsieh|first7=Pin-Pen|last8=Ng|first8=Siok-Bian|last9=Yang|first9=Sheau-Fang|date=2015-01|title=Primary cutaneous NK/T-cell lymphoma, nasal type and CD56-positive peripheral T-cell lymphoma: a cellular lineage and clinicopathologic study of 60 patients from Asia|url=https://pubmed.ncbi.nlm.nih.gov/25188863|journal=The American Journal of Surgical Pathology|volume=39|issue=1|pages=1–12|doi=10.1097/PAS.0000000000000312|issn=1532-0979|pmid=25188863}}</ref><ref>{{Cite journal|last=Kuo|first=Tseng-Tong|last2=Shih|first2=Lee-Yung|last3=Tsang|first3=Ngan-Ming|date=2004-10|title=Nasal NK/T cell lymphoma in Taiwan: a clinicopathologic study of 22 cases, with analysis of histologic subtypes, Epstein-Barr virus LMP-1 gene association, and treatment modalities|url=https://pubmed.ncbi.nlm.nih.gov/15494863|journal=International Journal of Surgical Pathology|volume=12|issue=4|pages=375–387|doi=10.1177/106689690401200410|issn=1066-8969|pmid=15494863}}</ref>.
 
|-
 
|-
 
|Negative (universal)||CD4, CD8
 
|Negative (universal)||CD4, CD8
Line 95: Line 112:
  
 
==Chromosomal Rearrangements (Gene Fusions)==
 
==Chromosomal Rearrangements (Gene Fusions)==
−
 
−
No specific chromosomal translocation has been identified in ENKTL.
 
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
Line 114: Line 129:
 
 
 
==Individual Region Genomic Gain / Loss / LOH==
 
==Individual Region Genomic Gain / Loss / LOH==
−
 
−
ENKTL shows recurring deletion at 6q21-25<ref>{{Cite journal|last=Wong|first=K. F.|last2=Chan|first2=J. K.|last3=Kwong|first3=Y. L.|date=1997-09|title=Identification of del(6)(q21q25) as a recurring chromosomal abnormality in putative NK cell lymphoma/leukaemia|url=https://pubmed.ncbi.nlm.nih.gov/9326190|journal=British Journal of Haematology|volume=98|issue=4|pages=922–926|doi=10.1046/j.1365-2141.1997.3223139.x|issn=0007-1048|pmid=9326190}}</ref><ref>{{Cite journal|last=Ohshima|first=Koichi|last2=Haraokaa|first2=Seiji|last3=Ishihara|first3=Shigehiko|last4=Ohgami|first4=Akiko|last5=Yoshioka|first5=Shingo|last6=Suzumiya|first6=Junji|last7=Kikuchi|first7=Masahiro|date=2002-02|title=Analysis of chromosome 6q deletion in EBV-associated NK cell leukaemia/lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/11999560|journal=Leukemia & Lymphoma|volume=43|issue=2|pages=293–300|doi=10.1080/10428190290006062|issn=1042-8194|pmid=11999560}}</ref>.
 
−
 
−
Other less common chromosomal alterations include gain of 1p, 2q, 6p, 10q, 11q, 12q, 13q, 17q, 19p, 20q, and Xp; and loss of 1p36, 2p16, 4q12, 4q31-32, 5p14, 5q34-35, 6q13-14, 6q16-27, 11q22-23, 12q, 13q12-14, 13q14-34, 17p13, and entire chromosome X<ref>{{Cite journal|last=Nakashima|first=Yasuhiro|last2=Tagawa|first2=Hiroyuki|last3=Suzuki|first3=Ritsuro|last4=Karnan|first4=Sivasundaram|last5=Karube|first5=Kennosuke|last6=Ohshima|first6=Koichi|last7=Muta|first7=Koichiro|last8=Nawata|first8=Hajime|last9=Morishima|first9=Yasuo|date=2005-11|title=Genome-wide array-based comparative genomic hybridization of natural killer cell lymphoma/leukemia: different genomic alteration patterns of aggressive NK-cell leukemia and extranodal Nk/T-cell lymphoma, nasal type|url=https://pubmed.ncbi.nlm.nih.gov/16049916|journal=Genes, Chromosomes & Cancer|volume=44|issue=3|pages=247–255|doi=10.1002/gcc.20245|issn=1045-2257|pmid=16049916}}</ref><ref>{{Cite journal|last=Siu|first=L. L.|last2=Chan|first2=V.|last3=Chan|first3=J. K.|last4=Wong|first4=K. F.|last5=Liang|first5=R.|last6=Kwong|first6=Y. L.|date=2000-12|title=Consistent patterns of allelic loss in natural killer cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/11106552|journal=The American Journal of Pathology|volume=157|issue=6|pages=1803–1809|doi=10.1016/S0002-9440(10)64818-3|issn=0002-9440|pmc=1885756|pmid=11106552}}</ref><ref>{{Cite journal|last=Siu|first=L. L.|last2=Wong|first2=K. F.|last3=Chan|first3=J. K.|last4=Kwong|first4=Y. L.|date=1999-11|title=Comparative genomic hybridization analysis of natural killer cell lymphoma/leukemia. Recognition of consistent patterns of genetic alterations|url=https://pubmed.ncbi.nlm.nih.gov/10550295|journal=The American Journal of Pathology|volume=155|issue=5|pages=1419–1425|doi=10.1016/S0002-9440(10)65454-5|issn=0002-9440|pmc=1866965|pmid=10550295}}</ref><ref>{{Cite journal|last=Wong|first=K. F.|last2=Zhang|first2=Y. M.|last3=Chan|first3=J. K.|date=1999-07|title=Cytogenetic abnormalities in natural killer cell lymphoma/leukaemia--is there a consistent pattern?|url=https://pubmed.ncbi.nlm.nih.gov/10439361|journal=Leukemia & Lymphoma|volume=34|issue=3-4|pages=241–250|doi=10.3109/10428199909050949|issn=1042-8194|pmid=10439361}}</ref><ref>{{Cite journal|last=Ko|first=Y. H.|last2=Choi|first2=K. E.|last3=Han|first3=J. H.|last4=Kim|first4=J. M.|last5=Ree|first5=H. J.|date=2001-04-15|title=Comparative genomic hybridization study of nasal-type NK/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/11309817|journal=Cytometry|volume=46|issue=2|pages=85–91|doi=10.1002/cyto.1069|issn=0196-4763|pmid=11309817}}</ref>.
 
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
Line 130: Line 141:
 
|Loss
 
|Loss
 
|
 
|
−
|6q21-25
+
|6q21-25<ref>{{Cite journal|last=Wong|first=K. F.|last2=Chan|first2=J. K.|last3=Kwong|first3=Y. L.|date=1997-09|title=Identification of del(6)(q21q25) as a recurring chromosomal abnormality in putative NK cell lymphoma/leukaemia|url=https://pubmed.ncbi.nlm.nih.gov/9326190|journal=British Journal of Haematology|volume=98|issue=4|pages=922–926|doi=10.1046/j.1365-2141.1997.3223139.x|issn=0007-1048|pmid=9326190}}</ref><ref>{{Cite journal|last=Ohshima|first=Koichi|last2=Haraokaa|first2=Seiji|last3=Ishihara|first3=Shigehiko|last4=Ohgami|first4=Akiko|last5=Yoshioka|first5=Shingo|last6=Suzumiya|first6=Junji|last7=Kikuchi|first7=Masahiro|date=2002-02|title=Analysis of chromosome 6q deletion in EBV-associated NK cell leukaemia/lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/11999560|journal=Leukemia & Lymphoma|volume=43|issue=2|pages=293–300|doi=10.1080/10428190290006062|issn=1042-8194|pmid=11999560}}</ref>
 
|Unknown
 
|Unknown
 
|Unknown
 
|Unknown
Line 136: Line 147:
 
|This locus harbours multiple candidate tumour suppressor genes including ''ATG5'', ''AIM1'', ''PRDM1'', ''PTPRK'', ''HACE1'', and ''FOXO3''<ref>{{Cite journal|last=Iqbal|first=J.|last2=Kucuk|first2=C.|last3=Deleeuw|first3=R. J.|last4=Srivastava|first4=G.|last5=Tam|first5=W.|last6=Geng|first6=H.|last7=Klinkebiel|first7=D.|last8=Christman|first8=J. K.|last9=Patel|first9=K.|date=2009-06|title=Genomic analyses reveal global functional alterations that promote tumor growth and novel tumor suppressor genes in natural killer-cell malignancies|url=https://pubmed.ncbi.nlm.nih.gov/19194464|journal=Leukemia|volume=23|issue=6|pages=1139–1151|doi=10.1038/leu.2009.3|issn=1476-5551|pmid=19194464}}</ref><ref name=":7">{{Cite journal|last=Karube|first=Kennosuke|last2=Nakagawa|first2=Masao|last3=Tsuzuki|first3=Shinobu|last4=Takeuchi|first4=Ichiro|last5=Honma|first5=Keiichiro|last6=Nakashima|first6=Yasuhiro|last7=Shimizu|first7=Norio|last8=Ko|first8=Young-Hyeh|last9=Morishima|first9=Yasuo|date=2011-09-22|title=Identification of FOXO3 and PRDM1 as tumor-suppressor gene candidates in NK-cell neoplasms by genomic and functional analyses|url=https://pubmed.ncbi.nlm.nih.gov/21690554|journal=Blood|volume=118|issue=12|pages=3195–3204|doi=10.1182/blood-2011-04-346890|issn=1528-0020|pmid=21690554}}</ref><ref name=":1">{{Cite journal|last=Chen|first=Yun-Wen|last2=Guo|first2=Tianhuan|last3=Shen|first3=Lijun|last4=Wong|first4=Kai-Yau|last5=Tao|first5=Qian|last6=Choi|first6=William W. L.|last7=Au-Yeung|first7=Rex K. H.|last8=Chan|first8=Yuen-Piu|last9=Wong|first9=Michelle L. Y.|date=2015-03-05|title=Receptor-type tyrosine-protein phosphatase κ directly targets STAT3 activation for tumor suppression in nasal NK/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/25612622|journal=Blood|volume=125|issue=10|pages=1589–1600|doi=10.1182/blood-2014-07-588970|issn=1528-0020|pmid=25612622}}</ref>.
 
|This locus harbours multiple candidate tumour suppressor genes including ''ATG5'', ''AIM1'', ''PRDM1'', ''PTPRK'', ''HACE1'', and ''FOXO3''<ref>{{Cite journal|last=Iqbal|first=J.|last2=Kucuk|first2=C.|last3=Deleeuw|first3=R. J.|last4=Srivastava|first4=G.|last5=Tam|first5=W.|last6=Geng|first6=H.|last7=Klinkebiel|first7=D.|last8=Christman|first8=J. K.|last9=Patel|first9=K.|date=2009-06|title=Genomic analyses reveal global functional alterations that promote tumor growth and novel tumor suppressor genes in natural killer-cell malignancies|url=https://pubmed.ncbi.nlm.nih.gov/19194464|journal=Leukemia|volume=23|issue=6|pages=1139–1151|doi=10.1038/leu.2009.3|issn=1476-5551|pmid=19194464}}</ref><ref name=":7">{{Cite journal|last=Karube|first=Kennosuke|last2=Nakagawa|first2=Masao|last3=Tsuzuki|first3=Shinobu|last4=Takeuchi|first4=Ichiro|last5=Honma|first5=Keiichiro|last6=Nakashima|first6=Yasuhiro|last7=Shimizu|first7=Norio|last8=Ko|first8=Young-Hyeh|last9=Morishima|first9=Yasuo|date=2011-09-22|title=Identification of FOXO3 and PRDM1 as tumor-suppressor gene candidates in NK-cell neoplasms by genomic and functional analyses|url=https://pubmed.ncbi.nlm.nih.gov/21690554|journal=Blood|volume=118|issue=12|pages=3195–3204|doi=10.1182/blood-2011-04-346890|issn=1528-0020|pmid=21690554}}</ref><ref name=":1">{{Cite journal|last=Chen|first=Yun-Wen|last2=Guo|first2=Tianhuan|last3=Shen|first3=Lijun|last4=Wong|first4=Kai-Yau|last5=Tao|first5=Qian|last6=Choi|first6=William W. L.|last7=Au-Yeung|first7=Rex K. H.|last8=Chan|first8=Yuen-Piu|last9=Wong|first9=Michelle L. Y.|date=2015-03-05|title=Receptor-type tyrosine-protein phosphatase κ directly targets STAT3 activation for tumor suppression in nasal NK/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/25612622|journal=Blood|volume=125|issue=10|pages=1589–1600|doi=10.1182/blood-2014-07-588970|issn=1528-0020|pmid=25612622}}</ref>.
 
|}
 
|}
 +
Other less common chromosomal alterations include gain of 1p, 2q, 6p, 10q, 11q, 12q, 13q, 17q, 19p, 20q, and Xp; and loss of 1p36, 2p16, 4q12, 4q31-32, 5p14, 5q34-35, 6q13-14, 6q16-27, 11q22-23, 12q, 13q12-14, 13q14-34, 17p13, and entire chromosome X<ref>{{Cite journal|last=Nakashima|first=Yasuhiro|last2=Tagawa|first2=Hiroyuki|last3=Suzuki|first3=Ritsuro|last4=Karnan|first4=Sivasundaram|last5=Karube|first5=Kennosuke|last6=Ohshima|first6=Koichi|last7=Muta|first7=Koichiro|last8=Nawata|first8=Hajime|last9=Morishima|first9=Yasuo|date=2005-11|title=Genome-wide array-based comparative genomic hybridization of natural killer cell lymphoma/leukemia: different genomic alteration patterns of aggressive NK-cell leukemia and extranodal Nk/T-cell lymphoma, nasal type|url=https://pubmed.ncbi.nlm.nih.gov/16049916|journal=Genes, Chromosomes & Cancer|volume=44|issue=3|pages=247–255|doi=10.1002/gcc.20245|issn=1045-2257|pmid=16049916}}</ref><ref>{{Cite journal|last=Siu|first=L. L.|last2=Chan|first2=V.|last3=Chan|first3=J. K.|last4=Wong|first4=K. F.|last5=Liang|first5=R.|last6=Kwong|first6=Y. L.|date=2000-12|title=Consistent patterns of allelic loss in natural killer cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/11106552|journal=The American Journal of Pathology|volume=157|issue=6|pages=1803–1809|doi=10.1016/S0002-9440(10)64818-3|issn=0002-9440|pmc=1885756|pmid=11106552}}</ref><ref>{{Cite journal|last=Siu|first=L. L.|last2=Wong|first2=K. F.|last3=Chan|first3=J. K.|last4=Kwong|first4=Y. L.|date=1999-11|title=Comparative genomic hybridization analysis of natural killer cell lymphoma/leukemia. Recognition of consistent patterns of genetic alterations|url=https://pubmed.ncbi.nlm.nih.gov/10550295|journal=The American Journal of Pathology|volume=155|issue=5|pages=1419–1425|doi=10.1016/S0002-9440(10)65454-5|issn=0002-9440|pmc=1866965|pmid=10550295}}</ref><ref>{{Cite journal|last=Wong|first=K. F.|last2=Zhang|first2=Y. M.|last3=Chan|first3=J. K.|date=1999-07|title=Cytogenetic abnormalities in natural killer cell lymphoma/leukaemia--is there a consistent pattern?|url=https://pubmed.ncbi.nlm.nih.gov/10439361|journal=Leukemia & Lymphoma|volume=34|issue=3-4|pages=241–250|doi=10.3109/10428199909050949|issn=1042-8194|pmid=10439361}}</ref><ref>{{Cite journal|last=Ko|first=Y. H.|last2=Choi|first2=K. E.|last3=Han|first3=J. H.|last4=Kim|first4=J. M.|last5=Ree|first5=H. J.|date=2001-04-15|title=Comparative genomic hybridization study of nasal-type NK/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/11309817|journal=Cytometry|volume=46|issue=2|pages=85–91|doi=10.1002/cyto.1069|issn=0196-4763|pmid=11309817}}</ref>.
 +
 
==Characteristic Chromosomal Patterns==
 
==Characteristic Chromosomal Patterns==
  
Line 159: Line 172:
 
|}
 
|}
 
==Gene Mutations (SNV / INDEL)==
 
==Gene Mutations (SNV / INDEL)==
−
 
−
Recurrent mutations have been identified in several genes, some of which are listed below. This is not an exhaustive list. Currently, molecular testing for these alterations is not routinely performed.
 
  
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
Line 175: Line 186:
 
|
 
|
 
|
 
|
−
|
+
|Unknown
−
|
+
|Unknown
 
|Pan-JAK and selective JAK3 inhibitors have been suggested as potential therapeutic options<ref name=":10" /><ref>{{Cite journal|last=Nairismägi|first=M.-L.|last2=Gerritsen|first2=M. E.|last3=Li|first3=Z. M.|last4=Wijaya|first4=G. C.|last5=Chia|first5=B. K. H.|last6=Laurensia|first6=Y.|last7=Lim|first7=J. Q.|last8=Yeoh|first8=K. W.|last9=Yao|first9=X. S.|date=2018-05|title=Oncogenic activation of JAK3-STAT signaling confers clinical sensitivity to PRN371, a novel selective and potent JAK3 inhibitor, in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/29434279|journal=Leukemia|volume=32|issue=5|pages=1147–1156|doi=10.1038/s41375-017-0004-x|issn=1476-5551|pmc=5940653|pmid=29434279}}</ref>. [https://clinicaltrials.gov/study/NCT02974647 Clinical trials evaluating JAK inhibitors] are in progress.
 
|Pan-JAK and selective JAK3 inhibitors have been suggested as potential therapeutic options<ref name=":10" /><ref>{{Cite journal|last=Nairismägi|first=M.-L.|last2=Gerritsen|first2=M. E.|last3=Li|first3=Z. M.|last4=Wijaya|first4=G. C.|last5=Chia|first5=B. K. H.|last6=Laurensia|first6=Y.|last7=Lim|first7=J. Q.|last8=Yeoh|first8=K. W.|last9=Yao|first9=X. S.|date=2018-05|title=Oncogenic activation of JAK3-STAT signaling confers clinical sensitivity to PRN371, a novel selective and potent JAK3 inhibitor, in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/29434279|journal=Leukemia|volume=32|issue=5|pages=1147–1156|doi=10.1038/s41375-017-0004-x|issn=1476-5551|pmc=5940653|pmid=29434279}}</ref>. [https://clinicaltrials.gov/study/NCT02974647 Clinical trials evaluating JAK inhibitors] are in progress.
 
|
 
|
 
|-
 
|-
 
|''STAT3''<ref name=":2">{{Cite journal|last=Jiang|first=Lu|last2=Gu|first2=Zhao-Hui|last3=Yan|first3=Zi-Xun|last4=Zhao|first4=Xia|last5=Xie|first5=Yin-Yin|last6=Zhang|first6=Zi-Guan|last7=Pan|first7=Chun-Ming|last8=Hu|first8=Yuan|last9=Cai|first9=Chang-Ping|date=2015-09|title=Exome sequencing identifies somatic mutations of DDX3X in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/26192917|journal=Nature Genetics|volume=47|issue=9|pages=1061–1066|doi=10.1038/ng.3358|issn=1546-1718|pmid=26192917}}</ref><ref name=":3">{{Cite journal|last=Küçük|first=Can|last2=Jiang|first2=Bei|last3=Hu|first3=Xiaozhou|last4=Zhang|first4=Wenyan|last5=Chan|first5=John K. C.|last6=Xiao|first6=Wenming|last7=Lack|first7=Nathan|last8=Alkan|first8=Can|last9=Williams|first9=John C.|date=2015-01-14|title=Activating mutations of STAT5B and STAT3 in lymphomas derived from γδ-T or NK cells|url=https://pubmed.ncbi.nlm.nih.gov/25586472|journal=Nature Communications|volume=6|pages=6025|doi=10.1038/ncomms7025|issn=2041-1723|pmc=7743911|pmid=25586472}}</ref><ref name=":4">{{Cite journal|last=Lee|first=Seungbok|last2=Park|first2=Ha Young|last3=Kang|first3=So Young|last4=Kim|first4=Seok Jin|last5=Hwang|first5=Jinha|last6=Lee|first6=Seungho|last7=Kwak|first7=Soo Heon|last8=Park|first8=Kyong Soo|last9=Yoo|first9=Hae Yong|date=2015-07-10|title=Genetic alterations of JAK/STAT cascade and histone modification in extranodal NK/T-cell lymphoma nasal type|url=https://pubmed.ncbi.nlm.nih.gov/25980440|journal=Oncotarget|volume=6|issue=19|pages=17764–17776|doi=10.18632/oncotarget.3776|issn=1949-2553|pmc=4627344|pmid=25980440}}</ref>
 
|''STAT3''<ref name=":2">{{Cite journal|last=Jiang|first=Lu|last2=Gu|first2=Zhao-Hui|last3=Yan|first3=Zi-Xun|last4=Zhao|first4=Xia|last5=Xie|first5=Yin-Yin|last6=Zhang|first6=Zi-Guan|last7=Pan|first7=Chun-Ming|last8=Hu|first8=Yuan|last9=Cai|first9=Chang-Ping|date=2015-09|title=Exome sequencing identifies somatic mutations of DDX3X in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/26192917|journal=Nature Genetics|volume=47|issue=9|pages=1061–1066|doi=10.1038/ng.3358|issn=1546-1718|pmid=26192917}}</ref><ref name=":3">{{Cite journal|last=Küçük|first=Can|last2=Jiang|first2=Bei|last3=Hu|first3=Xiaozhou|last4=Zhang|first4=Wenyan|last5=Chan|first5=John K. C.|last6=Xiao|first6=Wenming|last7=Lack|first7=Nathan|last8=Alkan|first8=Can|last9=Williams|first9=John C.|date=2015-01-14|title=Activating mutations of STAT5B and STAT3 in lymphomas derived from γδ-T or NK cells|url=https://pubmed.ncbi.nlm.nih.gov/25586472|journal=Nature Communications|volume=6|pages=6025|doi=10.1038/ncomms7025|issn=2041-1723|pmc=7743911|pmid=25586472}}</ref><ref name=":4">{{Cite journal|last=Lee|first=Seungbok|last2=Park|first2=Ha Young|last3=Kang|first3=So Young|last4=Kim|first4=Seok Jin|last5=Hwang|first5=Jinha|last6=Lee|first6=Seungho|last7=Kwak|first7=Soo Heon|last8=Park|first8=Kyong Soo|last9=Yoo|first9=Hae Yong|date=2015-07-10|title=Genetic alterations of JAK/STAT cascade and histone modification in extranodal NK/T-cell lymphoma nasal type|url=https://pubmed.ncbi.nlm.nih.gov/25980440|journal=Oncotarget|volume=6|issue=19|pages=17764–17776|doi=10.18632/oncotarget.3776|issn=1949-2553|pmc=4627344|pmid=25980440}}</ref>
−
|
+
|Oncogene
−
|26%<ref name=":4" />
+
|6-26%<ref name=":3" /><ref name=":4" />
−
|
 
−
|
 
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 
|STAT3 inhibitor may have potential therapeutic benefit in patients with STAT3 activating mutation<ref>{{Cite journal|last=Wang|first=Yali|last2=Zhou|first2=Wenbo|last3=Chen|first3=Jianfeng|last4=Chen|first4=Jinghong|last5=Deng|first5=Peng|last6=Chen|first6=Huang|last7=Sun|first7=Yichen|last8=Yu|first8=Zhaoliang|last9=Pang|first9=Diwen|date=2023-08|title=Preclinical characterization of WB737, a potent and selective STAT3 inhibitor, in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/37334274|journal=MedComm|volume=4|issue=4|pages=e284|doi=10.1002/mco2.284|issn=2688-2663|pmc=PMC10274570|pmid=37334274}}</ref>.
 
|STAT3 inhibitor may have potential therapeutic benefit in patients with STAT3 activating mutation<ref>{{Cite journal|last=Wang|first=Yali|last2=Zhou|first2=Wenbo|last3=Chen|first3=Jianfeng|last4=Chen|first4=Jinghong|last5=Deng|first5=Peng|last6=Chen|first6=Huang|last7=Sun|first7=Yichen|last8=Yu|first8=Zhaoliang|last9=Pang|first9=Diwen|date=2023-08|title=Preclinical characterization of WB737, a potent and selective STAT3 inhibitor, in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/37334274|journal=MedComm|volume=4|issue=4|pages=e284|doi=10.1002/mco2.284|issn=2688-2663|pmc=PMC10274570|pmid=37334274}}</ref>.
 
|
 
|
 
|-
 
|-
 
|''STAT5B''<ref name=":2" /><ref name=":3" />
 
|''STAT5B''<ref name=":2" /><ref name=":3" />
 +
|Oncogene
 +
|6%<ref name=":3" />
 
|
 
|
 
|
 
|
−
|
+
|Unknown
−
|
+
|Unknown
−
|
+
|Unknown
−
|
 
−
|
 
 
|
 
|
 
|-
 
|-
Line 205: Line 216:
 
|
 
|
 
|
 
|
−
|
+
|Unknown
−
|
+
|Unknown
−
|
+
|Unknown
 
|
 
|
 
|-
 
|-
Line 215: Line 226:
 
|
 
|
 
|
 
|
−
|
+
|Unknown
−
|
+
|Unknown
−
|
+
|Unknown
 
|
 
|
 
|-
 
|-
−
|''RUNX3''<ref>{{Cite journal|last=Selvarajan|first=V.|last2=Osato|first2=M.|last3=Nah|first3=G. S. S.|last4=Yan|first4=J.|last5=Chung|first5=T.-H.|last6=Voon|first6=D. C.-C.|last7=Ito|first7=Y.|last8=Ham|first8=M. F.|last9=Salto-Tellez|first9=M.|date=2017-10|title=RUNX3 is oncogenic in natural killer/T-cell lymphoma and is transcriptionally regulated by MYC|url=https://pubmed.ncbi.nlm.nih.gov/28119527|journal=Leukemia|volume=31|issue=10|pages=2219–2227|doi=10.1038/leu.2017.40|issn=1476-5551|pmc=5629367|pmid=28119527}}</ref>
+
|''PDGFRA''<ref name=":13" />
 +
|Oncogene
 
|
 
|
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''EZH2''<ref>{{Cite journal|last=Yan|first=Junli|last2=Li|first2=Boheng|last3=Lin|first3=Baohong|last4=Lee|first4=Pei Tsung|last5=Chung|first5=Tae-Hoon|last6=Tan|first6=Joy|last7=Bi|first7=Chonglei|last8=Lee|first8=Xue Ting|last9=Selvarajan|first9=Viknesvaran|date=2016-08-18|title=EZH2 phosphorylation by JAK3 mediates a switch to noncanonical function in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/27297789|journal=Blood|volume=128|issue=7|pages=948–958|doi=10.1182/blood-2016-01-690701|issn=1528-0020|pmid=27297789}}</ref>
 +
|Oncogene
 
|
 
|
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''PDGFRA''<ref name=":13" />
+
|''RAS/KRAS/HRAS''
 
|Oncogene
 
|Oncogene
 +
|<5%<ref name=":14">{{Cite journal|last=Hoshida|first=Yoshihiko|last2=Hongyo|first2=Tadashi|last3=Jia|first3=Xinshan|last4=He|first4=Yanjiao|last5=Hasui|first5=Kazuhisa|last6=Dong|first6=Zhiming|last7=Luo|first7=Wen-Juan|last8=Ham|first8=Maria Francisca|last9=Nomura|first9=Taisei|date=2003-03|title=Analysis of p53, K-ras, c-kit, and beta-catenin gene mutations in sinonasal NK/T cell lymphoma in northeast district of China|url=https://pubmed.ncbi.nlm.nih.gov/12824925|journal=Cancer Science|volume=94|issue=3|pages=297–301|doi=10.1111/j.1349-7006.2003.tb01436.x|issn=1347-9032|pmc=PMC11160272|pmid=12824925}}</ref><ref>{{Cite journal|last=Takahara|first=Miki|last2=Kishibe|first2=Kan|last3=Bandoh|first3=Nobuyuki|last4=Nonaka|first4=Satoshi|last5=Harabuchi|first5=Yasuaki|date=2004-01|title=P53, N- and K-Ras, and beta-catenin gene mutations and prognostic factors in nasal NK/T-cell lymphoma from Hokkaido, Japan|url=https://pubmed.ncbi.nlm.nih.gov/14745729|journal=Human Pathology|volume=35|issue=1|pages=86–95|doi=10.1016/j.humpath.2003.08.025|issn=0046-8177|pmid=14745729}}</ref>
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''FAS''
 +
|Oncogene
 +
|50-60%<ref>{{Cite journal|last=Shen|first=Lijun|last2=Liang|first2=Anthony C. T.|last3=Lu|first3=Liwei|last4=Au|first4=Wing Yan|last5=Kwong|first5=Yok-Lam|last6=Liang|first6=Raymond H. S.|last7=Srivastava|first7=Gopesh|date=2002-12|title=Frequent deletion of Fas gene sequences encoding death and transmembrane domains in nasal natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/12466128|journal=The American Journal of Pathology|volume=161|issue=6|pages=2123–2131|doi=10.1016/S0002-9440(10)64490-2|issn=0002-9440|pmc=1850920|pmid=12466128}}</ref><ref>{{Cite journal|last=Takakuwa|first=Tetsuya|last2=Dong|first2=Zhiming|last3=Nakatsuka|first3=Shinichi|last4=Kojya|first4=Shizuo|last5=Harabuchi|first5=Yasuaki|last6=Yang|first6=Woo-Ick|last7=Nagata|first7=Shigekazu|last8=Aozasa|first8=Katsuyuki|date=2002-07-11|title=Frequent mutations of Fas gene in nasal NK/T cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/12096347|journal=Oncogene|volume=21|issue=30|pages=4702–4705|doi=10.1038/sj.onc.1205571|issn=0950-9232|pmid=12096347}}</ref>
 
|
 
|
 
|
 
|
−
|
+
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''EZH2''<ref>{{Cite journal|last=Yan|first=Junli|last2=Li|first2=Boheng|last3=Lin|first3=Baohong|last4=Lee|first4=Pei Tsung|last5=Chung|first5=Tae-Hoon|last6=Tan|first6=Joy|last7=Bi|first7=Chonglei|last8=Lee|first8=Xue Ting|last9=Selvarajan|first9=Viknesvaran|date=2016-08-18|title=EZH2 phosphorylation by JAK3 mediates a switch to noncanonical function in natural killer/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/27297789|journal=Blood|volume=128|issue=7|pages=948–958|doi=10.1182/blood-2016-01-690701|issn=1528-0020|pmid=27297789}}</ref>
+
|''KIT''
 
|Oncogene
 
|Oncogene
 +
|5-71% (China)
 +
22% (Japan)<ref name=":14" /><ref>{{Cite journal|last=Hongyo|first=T.|last2=Li|first2=T.|last3=Syaifudin|first3=M.|last4=Baskar|first4=R.|last5=Ikeda|first5=H.|last6=Kanakura|first6=Y.|last7=Aozasa|first7=K.|last8=Nomura|first8=T.|date=2000-05-01|title=Specific c-kit mutations in sinonasal natural killer/T-cell lymphoma in China and Japan|url=https://pubmed.ncbi.nlm.nih.gov/10811105|journal=Cancer Research|volume=60|issue=9|pages=2345–2347|issn=0008-5472|pmid=10811105}}</ref>
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''CTNNB1''
 +
|Oncogene
 +
|16-30%<ref name=":14" /><ref>{{Cite journal|last=Sugimoto|first=Kei-ji|last2=Kawamata|first2=Norihiko|last3=Sakajiri|first3=Sakura|last4=Oshimi|first4=Kazuo|date=2002-11|title=Molecular analysis of oncogenes, ras family genes (N-ras, K-ras, H-ras), myc family genes (c-myc, N-myc) and mdm2 in natural killer cell neoplasms|url=https://pubmed.ncbi.nlm.nih.gov/12460470|journal=Japanese Journal of Cancer Research: Gann|volume=93|issue=11|pages=1270–1277|doi=10.1111/j.1349-7006.2002.tb01234.x|issn=0910-5050|pmc=5926889|pmid=12460470}}</ref>
 
|
 
|
 
|
 
|
−
|
+
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
 
|''DDX3X''<ref name=":2" />
 
|''DDX3X''<ref name=":2" />
−
|Other (RNA helicase)
+
|Epigenetic modifier (RNA helicase)
 
|20%<ref name=":2" />
 
|20%<ref name=":2" />
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''KMT2D (MLL2)''<ref name=":2" />
 +
|Epigenetic modifier
 +
|38.2%<ref name=":4" />
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''TP53''<ref name=":2" />
+
|''ARID1A''<ref name=":2" />
−
|Tumor suppressor gene
+
|Epigenetic modifier
−
|24-62%<ref name=":11">{{Cite journal|last=Quintanilla-Martinez|first=L.|last2=Kremer|first2=M.|last3=Keller|first3=G.|last4=Nathrath|first4=M.|last5=Gamboa-Dominguez|first5=A.|last6=Meneses|first6=A.|last7=Luna-Contreras|first7=L.|last8=Cabras|first8=A.|last9=Hoefler|first9=H.|date=2001-12|title=p53 Mutations in nasal natural killer/T-cell lymphoma from Mexico: association with large cell morphology and advanced disease|url=https://pubmed.ncbi.nlm.nih.gov/11733360|journal=The American Journal of Pathology|volume=159|issue=6|pages=2095–2105|doi=10.1016/S0002-9440(10)63061-1|issn=0002-9440|pmc=1850589|pmid=11733360}}</ref><ref name=":8">{{Cite journal|last=Hongyo|first=Tadashi|last2=Hoshida|first2=Yoshihiko|last3=Nakatsuka|first3=Shin-Ichi|last4=Syaifudin|first4=Mukh|last5=Kojya|first5=Shizuo|last6=Yang|first6=Woo-Ick|last7=Min|first7=Yoo-Hong|last8=Chan|first8=Heekyung|last9=Kim|first9=Chan Hwan|date=2005-02|title=p53, K-ras, c-kit and beta-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan|url=https://pubmed.ncbi.nlm.nih.gov/15643509|journal=Oncology Reports|volume=13|issue=2|pages=265–271|issn=1021-335X|pmid=15643509}}</ref>
+
|
 +
|
 +
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''EP300''<ref name=":2" />
 +
|Epigenetic modifier
 
|
 
|
 
|
 
|
−
|Yes, associated with advanced stage disease<ref name=":11" />.
 
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''MGA''<ref name=":2" />
+
|''ASXL3''<ref name=":2" />
−
|Tumor suppressor gene
+
|Epigenetic modifier
 
|
 
|
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''BCOR''<ref name=":4" />
 +
|Epigenetic modifier
 +
|38.2%<ref name=":4" />
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''PRDM1''<ref name=":9">{{Cite journal|last=Huang|first=Yenlin|last2=de Leval|first2=Laurence|last3=Gaulard|first3=Philippe|date=2013-03|title=Molecular underpinning of extranodal NK/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/23768641|journal=Best Practice & Research. Clinical Haematology|volume=26|issue=1|pages=57–74|doi=10.1016/j.beha.2013.04.006|issn=1532-1924|pmid=23768641}}</ref><ref name=":7" /><ref>{{Cite journal|last=Küçük|first=Can|last2=Iqbal|first2=Javeed|last3=Hu|first3=Xiaozhou|last4=Gaulard|first4=Phillip|last5=De Leval|first5=Laurence|last6=Srivastava|first6=Gopesh|last7=Au|first7=Wing Yan|last8=McKeithan|first8=Timothy W.|last9=Chan|first9=Wing C.|date=2011-12-13|title=PRDM1 is a tumor suppressor gene in natural killer cell malignancies|url=https://pubmed.ncbi.nlm.nih.gov/22143801|journal=Proceedings of the National Academy of Sciences of the United States of America|volume=108|issue=50|pages=20119–20124|doi=10.1073/pnas.1115128108|issn=1091-6490|pmc=3250125|pmid=22143801}}</ref>
+
|''TP53''<ref name=":2" />
 
|Tumor suppressor gene
 
|Tumor suppressor gene
 +
|24-62%<ref name=":11">{{Cite journal|last=Quintanilla-Martinez|first=L.|last2=Kremer|first2=M.|last3=Keller|first3=G.|last4=Nathrath|first4=M.|last5=Gamboa-Dominguez|first5=A.|last6=Meneses|first6=A.|last7=Luna-Contreras|first7=L.|last8=Cabras|first8=A.|last9=Hoefler|first9=H.|date=2001-12|title=p53 Mutations in nasal natural killer/T-cell lymphoma from Mexico: association with large cell morphology and advanced disease|url=https://pubmed.ncbi.nlm.nih.gov/11733360|journal=The American Journal of Pathology|volume=159|issue=6|pages=2095–2105|doi=10.1016/S0002-9440(10)63061-1|issn=0002-9440|pmc=1850589|pmid=11733360}}</ref><ref name=":8">{{Cite journal|last=Hongyo|first=Tadashi|last2=Hoshida|first2=Yoshihiko|last3=Nakatsuka|first3=Shin-Ichi|last4=Syaifudin|first4=Mukh|last5=Kojya|first5=Shizuo|last6=Yang|first6=Woo-Ick|last7=Min|first7=Yoo-Hong|last8=Chan|first8=Heekyung|last9=Kim|first9=Chan Hwan|date=2005-02|title=p53, K-ras, c-kit and beta-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan|url=https://pubmed.ncbi.nlm.nih.gov/15643509|journal=Oncology Reports|volume=13|issue=2|pages=265–271|issn=1021-335X|pmid=15643509}}</ref>
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Yes, associated with advanced stage disease<ref name=":11" />.
 +
|Unknown
 
|
 
|
 +
|-
 +
|''RUNX3''<ref>{{Cite journal|last=Selvarajan|first=V.|last2=Osato|first2=M.|last3=Nah|first3=G. S. S.|last4=Yan|first4=J.|last5=Chung|first5=T.-H.|last6=Voon|first6=D. C.-C.|last7=Ito|first7=Y.|last8=Ham|first8=M. F.|last9=Salto-Tellez|first9=M.|date=2017-10|title=RUNX3 is oncogenic in natural killer/T-cell lymphoma and is transcriptionally regulated by MYC|url=https://pubmed.ncbi.nlm.nih.gov/28119527|journal=Leukemia|volume=31|issue=10|pages=2219–2227|doi=10.1038/leu.2017.40|issn=1476-5551|pmc=5629367|pmid=28119527}}</ref>
 +
|Tumor suppressor gene
 
|
 
|
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''ATG5''<ref name=":9" />
+
|''MGA''<ref name=":2" />
 
|Tumor suppressor gene
 
|Tumor suppressor gene
 
|
 
|
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''PRDM1''<ref name=":9">{{Cite journal|last=Huang|first=Yenlin|last2=de Leval|first2=Laurence|last3=Gaulard|first3=Philippe|date=2013-03|title=Molecular underpinning of extranodal NK/T-cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/23768641|journal=Best Practice & Research. Clinical Haematology|volume=26|issue=1|pages=57–74|doi=10.1016/j.beha.2013.04.006|issn=1532-1924|pmid=23768641}}</ref><ref name=":7" /><ref>{{Cite journal|last=Küçük|first=Can|last2=Iqbal|first2=Javeed|last3=Hu|first3=Xiaozhou|last4=Gaulard|first4=Phillip|last5=De Leval|first5=Laurence|last6=Srivastava|first6=Gopesh|last7=Au|first7=Wing Yan|last8=McKeithan|first8=Timothy W.|last9=Chan|first9=Wing C.|date=2011-12-13|title=PRDM1 is a tumor suppressor gene in natural killer cell malignancies|url=https://pubmed.ncbi.nlm.nih.gov/22143801|journal=Proceedings of the National Academy of Sciences of the United States of America|volume=108|issue=50|pages=20119–20124|doi=10.1073/pnas.1115128108|issn=1091-6490|pmc=3250125|pmid=22143801}}</ref>
 +
|Tumor suppressor gene
 +
|Methylated in NK-92, KHYG-1, SNK-1, SNK-6 cell lines, 12/17 cases; Deleted in 8/18 cases; Mutated in NK-92 and KAI3 cell lines, 1/26 cases<ref name=":9" />
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
−
|''AIM1''<ref name=":9" />
+
|''ATG5''<ref name=":9" />
 
|Tumor suppressor gene
 
|Tumor suppressor gene
 
|
 
|
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 +
|-
 +
|''AIM1''<ref name=":9" />
 +
|Tumor suppressor gene
 +
|Methylated in NK-92, HANK1, NK-YS, SNK-1, YT cell lines; Mutated in in SNK-1 and SNK-6 cell lines<ref name=":9" />
 
|
 
|
 
|
 
|
 +
|Unknown
 +
|Unknown
 +
|Unknown
 
|
 
|
 
|-
 
|-
 
|''FOXO3''<ref name=":9" /><ref name=":7" />
 
|''FOXO3''<ref name=":9" /><ref name=":7" />
 
|Tumor suppressor gene
 
|Tumor suppressor gene
 +
|Mutated in 2/26 NKTCL and 1/9 ANKL<ref name=":9" />
 
|
 
|
 
|
 
|
−
|
+
|Unknown
−
|
+
|Unknown
−
|
+
|Unknown
−
|
 
 
|
 
|
 
|-
 
|-
 
|''HACE1''<ref name=":9" /><ref name=":13">{{Cite journal|last=Huang|first=Yenlin|last2=de Reyniès|first2=Aurélien|last3=de Leval|first3=Laurence|last4=Ghazi|first4=Bouchra|last5=Martin-Garcia|first5=Nadine|last6=Travert|first6=Marion|last7=Bosq|first7=Jacques|last8=Brière|first8=Josette|last9=Petit|first9=Barbara|date=2010-02-11|title=Gene expression profiling identifies emerging oncogenic pathways operating in extranodal NK/T-cell lymphoma, nasal type|url=https://pubmed.ncbi.nlm.nih.gov/19965620|journal=Blood|volume=115|issue=6|pages=1226–1237|doi=10.1182/blood-2009-05-221275|issn=1528-0020|pmc=2826234|pmid=19965620}}</ref>
 
|''HACE1''<ref name=":9" /><ref name=":13">{{Cite journal|last=Huang|first=Yenlin|last2=de Reyniès|first2=Aurélien|last3=de Leval|first3=Laurence|last4=Ghazi|first4=Bouchra|last5=Martin-Garcia|first5=Nadine|last6=Travert|first6=Marion|last7=Bosq|first7=Jacques|last8=Brière|first8=Josette|last9=Petit|first9=Barbara|date=2010-02-11|title=Gene expression profiling identifies emerging oncogenic pathways operating in extranodal NK/T-cell lymphoma, nasal type|url=https://pubmed.ncbi.nlm.nih.gov/19965620|journal=Blood|volume=115|issue=6|pages=1226–1237|doi=10.1182/blood-2009-05-221275|issn=1528-0020|pmc=2826234|pmid=19965620}}</ref>
 
|Tumor suppressor gene
 
|Tumor suppressor gene
 +
|Mutated in 6/9 (67%) cell lines and 5/15 (33%) primary tumors<ref>{{Cite journal|last=Küçük|first=Can|last2=Hu|first2=Xiaozhou|last3=Iqbal|first3=Javeed|last4=Gaulard|first4=Philippe|last5=Klinkebiel|first5=David|last6=Cornish|first6=Adam|last7=Dave|first7=Bhavana J.|last8=Chan|first8=Wing C.|date=2013-01|title=HACE1 is a tumor suppressor gene candidate in natural killer cell neoplasms|url=https://pubmed.ncbi.nlm.nih.gov/23142381|journal=The American Journal of Pathology|volume=182|issue=1|pages=49–55|doi=10.1016/j.ajpath.2012.09.012|issn=1525-2191|pmc=3532710|pmid=23142381}}</ref>
 
|
 
|
 
|
 
|
−
|
+
|Unknown
−
|
+
|Unknown
−
|
+
|Unknown
−
|
 
 
|
 
|
 
|}
 
|}
Line 339: Line 441:
  
 
==Genes and Main Pathways Involved==
 
==Genes and Main Pathways Involved==
−
[https://ashpublications.org/blood/article/115/6/1226/26917/Gene-expression-profiling-identifies-emerging Huang, ''et al''] described deregulation of several signaling pathways in NK T-cell lymphoma, main ones listed below<ref name=":13" />. A review by [https://jhoonline.biomedcentral.com/articles/10.1186/s13045-019-0716-7 De Mel, ''et al''], also outlines key molecular pathways involved in the pathogenesis of ENKTL<ref>{{Cite journal|last=de Mel|first=Sanjay|last2=Hue|first2=Susan Swee-Shan|last3=Jeyasekharan|first3=Anand D.|last4=Chng|first4=Wee-Joo|last5=Ng|first5=Siok-Bian|date=2019-04-02|title=Molecular pathogenic pathways in extranodal NK/T cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/30935402|journal=Journal of Hematology & Oncology|volume=12|issue=1|pages=33|doi=10.1186/s13045-019-0716-7|issn=1756-8722|pmc=6444858|pmid=30935402}}</ref>.
+
[https://ashpublications.org/blood/article/115/6/1226/26917/Gene-expression-profiling-identifies-emerging Huang, ''et al''] described deregulation of several signaling pathways in NK T-cell lymphoma, main ones listed below<ref name=":13" />. A review by [https://jhoonline.biomedcentral.com/articles/10.1186/s13045-019-0716-7 De Mel, ''et al''], also outlines key molecular pathways involved in the pathogenesis of ENKTL<ref name=":15">{{Cite journal|last=de Mel|first=Sanjay|last2=Hue|first2=Susan Swee-Shan|last3=Jeyasekharan|first3=Anand D.|last4=Chng|first4=Wee-Joo|last5=Ng|first5=Siok-Bian|date=2019-04-02|title=Molecular pathogenic pathways in extranodal NK/T cell lymphoma|url=https://pubmed.ncbi.nlm.nih.gov/30935402|journal=Journal of Hematology & Oncology|volume=12|issue=1|pages=33|doi=10.1186/s13045-019-0716-7|issn=1756-8722|pmc=6444858|pmid=30935402}}</ref>.
 
{| class="wikitable sortable"
 
{| class="wikitable sortable"
 
|-
 
|-
 
!Gene; Genetic Alteration!!Pathway!!Pathophysiologic Outcome
 
!Gene; Genetic Alteration!!Pathway!!Pathophysiologic Outcome
 
|-
 
|-
−
|''JAK3'', ''STAT3'', and ''STAT5B''; Activating mutations
+
|''JAK3'', ''STAT3'', and ''STAT5B''; Activating mutations<ref name=":13" /><ref name=":15" />
 
|JAK/STAT pathway
 
|JAK/STAT pathway
 
|Increased cell growth and proliferation
 
|Increased cell growth and proliferation
 
|-
 
|-
−
|''MYC, RUNX3''
+
|''MYC, RUNX3''<ref name=":15" />
 
|MYC
 
|MYC
 
|Increased cell proliferation and survival
 
|Increased cell proliferation and survival
 
|-
 
|-
−
|''AKT'' and related genes
+
|''AKT'' and related genes<ref name=":13" />
 
|AKT pathway
 
|AKT pathway
 
|Increased cell growth, proliferation and survival
 
|Increased cell growth, proliferation and survival
 
|-
 
|-
−
|NF-κB related genes
+
|NF-κB related genes<ref name=":13" /><ref name=":15" />
 
|NF-κB pathway
 
|NF-κB pathway
 
|Increased cell proliferation
 
|Increased cell proliferation
 
|-
 
|-
−
|''PDGFRA''
+
|''PDGFRA''<ref name=":13" /><ref name=":15" />
 
|PDGF pathway
 
|PDGF pathway
 
|Increased cell proliferation and survival
 
|Increased cell proliferation and survival
 
|-
 
|-
−
|''NOTCH1''
+
|''NOTCH1''<ref name=":15" />
 
|NOTCH1 pathway
 
|NOTCH1 pathway
 
|Increased cell proliferation
 
|Increased cell proliferation
 
|-
 
|-
−
|AURKA
+
|AURKA<ref name=":15" />
 
|Aurora kinase pathway<ref name=":12" />
 
|Aurora kinase pathway<ref name=":12" />
 
|Increased cell proliferation and cell cycle dysregulation
 
|Increased cell proliferation and cell cycle dysregulation
Line 374: Line 476:
 
==Genetic Diagnostic Testing Methods==
 
==Genetic Diagnostic Testing Methods==
  
−
Not routinely performed. Select cases may require TCR gene rearrangement studies.
+
*Select cases may require TCR gene rearrangement studies; otherwise, not routinely performed.
 +
*EBV PCR testing may be used for disease monitoring
  
 
==Familial Forms==
 
==Familial Forms==

Latest revision as of 14:59, 7 November 2024


Haematolymphoid Tumours (WHO Classification, 5th ed.)

Primary Authors*

Teodora Popa, MD, Queen's University

Amanda Xu, MD, Queen's University

WHO Classification of Disease

Structure Disease
Book Haematolymphoid Tumours (5th ed.)
Category T-cell and NK-cell lymphoid proliferations and lymphomas
Family Mature T-cell and NK-cell neoplasms
Type EBV-positive NK-cell and T-cell lymphomas
Subtype(s) Extranodal NK/T-cell lymphoma

Definition / Description of Disease

  • Lymphoma of NK or T-cell lineage strongly associated with Epstein-Barr virus[1]. The lineage (NK or T-cell) has no clinical significance[2].
  • Divided into nasal and non-nasal types, the latter most often occurring in the skin and intestinal tract[3][1].
  • It is a destructive angiocentric disease characterized by vascular destruction and necrosis[4].
  • Differential diagnosis: sinonasal carcinomas and other lymphomas of the nasal cavity, such as diffuse large B-cell lymphoma[5].

Synonyms / Terminology

Extranodal NK/T-cell lymphoma, nasal type

EBV-positive extranodal NK/T-cell lymphoma

Not recommended: angiocentric lymphoma; lethal midline granuloma (historical)

Epidemiology / Prevalence

  • Most prevalent in East Asia and Latin America.
  • Represents less than 1% of non-Hodgkin lymphomas in the United States
    • Highest incidence among Asian Pacific Islanders and Hispanic populations[6].

Clinical Features

Signs and Symptoms Nasal mass, nasal obstruction, nasal bleeding

Hoarseness, dysphagia, halitosis, airway obstruction, dysphonia

Abdominal pain, GI bleeding, bowel perforation[7]

B symptoms (fever, weight loss, night sweats) associated with higher clinical stage[8]

Laboratory Findings No specific findings

Cytopenias

Sites of Involvement

  • Most are nasal type involving the upper aerodigestive tract
  • Extranasal type may involve skin, testis, and gastrointestinal tract[7].
  • Bone marrow involvement is uncommon[9].

Morphologic Features

Extranodal NK T-cell lymphoma, nasal type (HPS). Angiocentric and angiodestructive growth pattern.
Extranodal NK T-cell lymphoma, nasal type (HPS). Angiocentric and angiodestructive growth pattern.
  • Diffuse infiltrate composed of admixture of small, medium, or large and anaplastic cells.
  • Cells have irregularly folded nuclei and moderate pale cytoplasm.
  • Loss of mucosal glands.
  • Angiocentric and angiodestructive growth pattern with coagulative necrosis.
  • Usually see apoptotic cells and mitotic figures

Pitfalls:

  • Mucosal ulceration and superimposed inflammation can mimic an inflammatory process, particularly in less aggressive cases[10].
  • Pseudoepitheliomatous hyperplasia of the overlying mucosal epithelium can mimic squamous cell carcinoma[11][12].

Immunophenotype

Extranodal NK T-cell lymphoma stained with CD2 (top left), CD56 (red chromogen; top right), EBER in-situ hybridization (bottom left) and TIA1 (bottom right).


Finding Marker
Positive (universal) EBER / EBV
Positive (majority) cytoplasmic CD3ε, CD2, CD56, granzyme B, and TIA-1
Positive (subset) TCR αβ/γδ, HLA-DR, CD25, pSTAT3, CXCL13, IRF4/MUM1, CD16, Fas, FasL, MATK, CD30[13][14][15][16][17][18][19].
Negative (universal) CD4, CD8
Negative (subset) Surface CD3 (subset of T-cell lineage)[7]

Chromosomal Rearrangements (Gene Fusions)

Chromosomal Rearrangement Genes in Fusion (5’ or 3’ Segments) Pathogenic Derivative Prevalence Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
N/A N/A N/A N/A N/A N/A N/A N/A

Individual Region Genomic Gain / Loss / LOH

Chr # Gain / Loss / Amp / LOH Minimal Region Genomic Coordinates [Genome Build] Minimal Region Cytoband Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
6 Loss 6q21-25[20][21] Unknown Unknown Unknown This locus harbours multiple candidate tumour suppressor genes including ATG5, AIM1, PRDM1, PTPRK, HACE1, and FOXO3[22][23][24].

Other less common chromosomal alterations include gain of 1p, 2q, 6p, 10q, 11q, 12q, 13q, 17q, 19p, 20q, and Xp; and loss of 1p36, 2p16, 4q12, 4q31-32, 5p14, 5q34-35, 6q13-14, 6q16-27, 11q22-23, 12q, 13q12-14, 13q14-34, 17p13, and entire chromosome X[25][26][27][28][29].

Characteristic Chromosomal Patterns

Chromosomal Pattern Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
Isochromosome 6p[30] Unknown Unknown Unknown N/A
Isochromosome 7q[31] Unknown Unknown Unknown N/A

Gene Mutations (SNV / INDEL)

Gene; Genetic Alteration Presumed Mechanism (Tumor Suppressor Gene [TSG] / Oncogene / Other) Prevalence (COSMIC / TCGA / Other) Concomitant Mutations Mutually Exclusive Mutations Diagnostic Significance (Yes, No or Unknown) Prognostic Significance (Yes, No or Unknown) Therapeutic Significance (Yes, No or Unknown) Notes
JAK3[32][33] Oncogene 35.4%[32] Unknown Unknown Pan-JAK and selective JAK3 inhibitors have been suggested as potential therapeutic options[32][34]. Clinical trials evaluating JAK inhibitors are in progress.
STAT3[35][36][37] Oncogene 6-26%[36][37] Unknown Unknown STAT3 inhibitor may have potential therapeutic benefit in patients with STAT3 activating mutation[38].
STAT5B[35][36] Oncogene 6%[36] Unknown Unknown Unknown
PTPRK[24] Other (acts on JAK/STAT pathway; underexpression leads to STAT3 activation[24]) Unknown Unknown Unknown
MYC[39] Oncogene Unknown Unknown Unknown
PDGFRA[40] Oncogene Unknown Unknown Unknown
EZH2[41] Oncogene Unknown Unknown Unknown
RAS/KRAS/HRAS Oncogene <5%[42][43] Unknown Unknown Unknown
FAS Oncogene 50-60%[44][45] Unknown Unknown Unknown
KIT Oncogene 5-71% (China)

22% (Japan)[42][46]

Unknown Unknown Unknown
CTNNB1 Oncogene 16-30%[42][47] Unknown Unknown Unknown
DDX3X[35] Epigenetic modifier (RNA helicase) 20%[35] Unknown Unknown Unknown
KMT2D (MLL2)[35] Epigenetic modifier 38.2%[37] Unknown Unknown Unknown
ARID1A[35] Epigenetic modifier Unknown Unknown Unknown
EP300[35] Epigenetic modifier Unknown Unknown Unknown
ASXL3[35] Epigenetic modifier Unknown Unknown Unknown
BCOR[37] Epigenetic modifier 38.2%[37] Unknown Unknown Unknown
TP53[35] Tumor suppressor gene 24-62%[48][49] Unknown Yes, associated with advanced stage disease[48]. Unknown
RUNX3[50] Tumor suppressor gene Unknown Unknown Unknown
MGA[35] Tumor suppressor gene Unknown Unknown Unknown
PRDM1[51][23][52] Tumor suppressor gene Methylated in NK-92, KHYG-1, SNK-1, SNK-6 cell lines, 12/17 cases; Deleted in 8/18 cases; Mutated in NK-92 and KAI3 cell lines, 1/26 cases[51] Unknown Unknown Unknown
ATG5[51] Tumor suppressor gene Unknown Unknown Unknown
AIM1[51] Tumor suppressor gene Methylated in NK-92, HANK1, NK-YS, SNK-1, YT cell lines; Mutated in in SNK-1 and SNK-6 cell lines[51] Unknown Unknown Unknown
FOXO3[51][23] Tumor suppressor gene Mutated in 2/26 NKTCL and 1/9 ANKL[51] Unknown Unknown Unknown
HACE1[51][40] Tumor suppressor gene Mutated in 6/9 (67%) cell lines and 5/15 (33%) primary tumors[53] Unknown Unknown Unknown

Note: A more extensive list of mutations can be found in cBioportal (https://www.cbioportal.org/), COSMIC (https://cancer.sanger.ac.uk/cosmic), ICGC (https://dcc.icgc.org/) and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content.

Epigenomic Alterations

A 2015 study by Lu, et al uncovered recurrent mutations in the RNA helicase gene DDX3X and other epigenetic modifiers including KMT2D (MLL2), ARID1A, EP300, and ASXL3[35].

Similarly, a 2015 study by Lee, et al reported that histone modification-related genes, including BCOR and KMT2D (MLL2), accounted for 38.2% of 34 ENKTL samples by next-generation sequencing[37].

Genes and Main Pathways Involved

Huang, et al described deregulation of several signaling pathways in NK T-cell lymphoma, main ones listed below[40]. A review by De Mel, et al, also outlines key molecular pathways involved in the pathogenesis of ENKTL[54].

Gene; Genetic Alteration Pathway Pathophysiologic Outcome
JAK3, STAT3, and STAT5B; Activating mutations[40][54] JAK/STAT pathway Increased cell growth and proliferation
MYC, RUNX3[54] MYC Increased cell proliferation and survival
AKT and related genes[40] AKT pathway Increased cell growth, proliferation and survival
NF-κB related genes[40][54] NF-κB pathway Increased cell proliferation
PDGFRA[40][54] PDGF pathway Increased cell proliferation and survival
NOTCH1[54] NOTCH1 pathway Increased cell proliferation
AURKA[54] Aurora kinase pathway[39] Increased cell proliferation and cell cycle dysregulation

Genetic Diagnostic Testing Methods

  • Select cases may require TCR gene rearrangement studies; otherwise, not routinely performed.
  • EBV PCR testing may be used for disease monitoring

Familial Forms

N/A

Additional Information

N/A

Links

5th edition World Health Organization (WHO) classification system

References

  1. ↑ 1.0 1.1 Jaffe, E. S.; et al. (1999-01). "Extranodal peripheral T-cell and NK-cell neoplasms". American Journal of Clinical Pathology. 111 (1 Suppl 1): S46–55. ISSN 0002-9173. PMID 9894469. Check date values in: |date= (help)
  2. ↑ Wang, Hua; et al. (2021-09). "NK-/T-cell lymphomas". Leukemia. 35 (9): 2460–2468. doi:10.1038/s41375-021-01313-2. ISSN 1476-5551. PMC 8410593 Check |pmc= value (help). PMID 34117356 Check |pmid= value (help). Check date values in: |date= (help)
  3. ↑ Chan J. K. C., et al., (2017). Extranodal NK/T-cell lymphoma, nasal type, in World Health Organization Classification of Tumours of Haematopoietic and Lymphoid Tissues, Revised 4th edition. Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J, Arber DA, Hasserjian RP, Le Beau MM, Orazi A, and Siebert R, Editors. Revised 4th Edition. IARC Press: Lyon, France, p.368-371.
  4. ↑ Aviles, A.; et al. (1992). "Angiocentric T-cell lymphoma of the nose, paranasal sinuses and hard palate". Hematological Oncology. 10 (3–4): 141–147. doi:10.1002/hon.2900100303. ISSN 0278-0232. PMID 1398510.
  5. ↑ Steele, Toby O.; et al. (2016-09). "Lymphoma of the nasal cavity and paranasal sinuses: A case series". American Journal of Rhinology & Allergy. 30 (5): 335–339. doi:10.2500/ajra.2016.30.4347. ISSN 1945-8932. PMID 27657899. Check date values in: |date= (help)
  6. ↑ Haverkos, Bradley M.; et al. (2016-12). "Extranodal NK/T-cell lymphoma, nasal type (ENKTL-NT): An update on epidemiology, clinical presentation, and natural history in North American and European cases". Current hematologic malignancy reports. 11 (6): 514–527. doi:10.1007/s11899-016-0355-9. ISSN 1558-8211. PMC 5199232. PMID 27778143. Check date values in: |date= (help)
  7. ↑ 7.0 7.1 7.2 Thida AM, Gohari P. Extranodal NK-Cell Lymphoma. [Updated 2023 Jul 17]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK559207/
  8. ↑ Takahara, Miki; et al. (2021-06-25). "Extranodal NK/T-Cell Lymphoma, Nasal Type: Genetic, Biologic, and Clinical Aspects with a Central Focus on Epstein-Barr Virus Relation". Microorganisms. 9 (7): 1381. doi:10.3390/microorganisms9071381. ISSN 2076-2607. PMC 8304202 Check |pmc= value (help). PMID 34202088 Check |pmid= value (help).
  9. ↑ Wong, K. F.; et al. (2001-02). "Bone marrow involvement by nasal NK cell lymphoma at diagnosis is uncommon". American Journal of Clinical Pathology. 115 (2): 266–270. doi:10.1309/E5PR-6A9R-Q02N-8QVW. ISSN 0002-9173. PMID 11211616. Check date values in: |date= (help)
  10. ↑ Devins, K., Schuster, S.J., Caponetti, G.C. et al. Rare case of low-grade extranodal NK/T-cell lymphoma, nasal type, arising in the setting of chronic rhinosinusitis and harboring a novel N-terminal KIT mutation. Diagn Pathol 13, 92 (2018). https://doi.org/10.1186/s13000-018-0765-1
  11. ↑ Ling, Yi-Hong; et al. (2015-09). "Pseudoepitheliomatous hyperplasia mimicking invasive squamous cell carcinoma in extranodal natural killer/T-cell lymphoma: a report of 34 cases". Histopathology. 67 (3): 404–409. doi:10.1111/his.12656. ISSN 1365-2559. PMID 25619876. Check date values in: |date= (help)
  12. ↑ Xiang, Chun-Xiang; et al. (2019-07). "Laryngeal Extranodal Nasal-type Natural Killer/T-cell Lymphoma: A Clinicopathologic Study of 31 Cases in China". The American Journal of Surgical Pathology. 43 (7): 995–1004. doi:10.1097/PAS.0000000000001266. ISSN 1532-0979. PMID 31045893. Check date values in: |date= (help)
  13. ↑ Li, Shaoying; et al. (2013-01). "Extranodal NK/T-cell lymphoma, nasal type: a report of 73 cases at MD Anderson Cancer Center". The American Journal of Surgical Pathology. 37 (1): 14–23. doi:10.1097/PAS.0b013e31826731b5. ISSN 1532-0979. PMID 23232851. Check date values in: |date= (help)
  14. ↑ Jhuang, Jie-Yang; et al. (2015-02). "Extranodal natural killer/T-cell lymphoma, nasal type in Taiwan: a relatively higher frequency of T-cell lineage and poor survival for extranasal tumors". Human Pathology. 46 (2): 313–321. doi:10.1016/j.humpath.2014.11.008. ISSN 1532-8392. PMID 25554090. Check date values in: |date= (help)
  15. ↑ Pongpruttipan, Tawatchai; et al. (2012-04). "Extranodal NK/T-cell lymphoma, nasal type, includes cases of natural killer cell and αβ, γδ, and αβ/γδ T-cell origin: a comprehensive clinicopathologic and phenotypic study". The American Journal of Surgical Pathology. 36 (4): 481–499. doi:10.1097/PAS.0b013e31824433d8. ISSN 1532-0979. PMID 22314189. Check date values in: |date= (help)
  16. ↑ Jaffe, E. S.; et al. (1996-01). "Report of the Workshop on Nasal and Related Extranodal Angiocentric T/Natural Killer Cell Lymphomas. Definitions, differential diagnosis, and epidemiology". The American Journal of Surgical Pathology. 20 (1): 103–111. doi:10.1097/00000478-199601000-00012. ISSN 0147-5185. PMID 8540601. Check date values in: |date= (help)
  17. ↑ Ohshima, K.; et al. (1997-11). "Nasal T/NK cell lymphomas commonly express perforin and Fas ligand: important mediators of tissue damage". Histopathology. 31 (5): 444–450. doi:10.1046/j.1365-2559.1997.2880887.x. ISSN 0309-0167. PMID 9416485. Check date values in: |date= (help)
  18. ↑ Takata, Katsuyoshi; et al. (2015-01). "Primary cutaneous NK/T-cell lymphoma, nasal type and CD56-positive peripheral T-cell lymphoma: a cellular lineage and clinicopathologic study of 60 patients from Asia". The American Journal of Surgical Pathology. 39 (1): 1–12. doi:10.1097/PAS.0000000000000312. ISSN 1532-0979. PMID 25188863. Check date values in: |date= (help)
  19. ↑ Kuo, Tseng-Tong; et al. (2004-10). "Nasal NK/T cell lymphoma in Taiwan: a clinicopathologic study of 22 cases, with analysis of histologic subtypes, Epstein-Barr virus LMP-1 gene association, and treatment modalities". International Journal of Surgical Pathology. 12 (4): 375–387. doi:10.1177/106689690401200410. ISSN 1066-8969. PMID 15494863. Check date values in: |date= (help)
  20. ↑ Wong, K. F.; et al. (1997-09). "Identification of del(6)(q21q25) as a recurring chromosomal abnormality in putative NK cell lymphoma/leukaemia". British Journal of Haematology. 98 (4): 922–926. doi:10.1046/j.1365-2141.1997.3223139.x. ISSN 0007-1048. PMID 9326190. Check date values in: |date= (help)
  21. ↑ Ohshima, Koichi; et al. (2002-02). "Analysis of chromosome 6q deletion in EBV-associated NK cell leukaemia/lymphoma". Leukemia & Lymphoma. 43 (2): 293–300. doi:10.1080/10428190290006062. ISSN 1042-8194. PMID 11999560. Check date values in: |date= (help)
  22. ↑ Iqbal, J.; et al. (2009-06). "Genomic analyses reveal global functional alterations that promote tumor growth and novel tumor suppressor genes in natural killer-cell malignancies". Leukemia. 23 (6): 1139–1151. doi:10.1038/leu.2009.3. ISSN 1476-5551. PMID 19194464. Check date values in: |date= (help)
  23. ↑ 23.0 23.1 23.2 Karube, Kennosuke; et al. (2011-09-22). "Identification of FOXO3 and PRDM1 as tumor-suppressor gene candidates in NK-cell neoplasms by genomic and functional analyses". Blood. 118 (12): 3195–3204. doi:10.1182/blood-2011-04-346890. ISSN 1528-0020. PMID 21690554.
  24. ↑ 24.0 24.1 24.2 Chen, Yun-Wen; et al. (2015-03-05). "Receptor-type tyrosine-protein phosphatase κ directly targets STAT3 activation for tumor suppression in nasal NK/T-cell lymphoma". Blood. 125 (10): 1589–1600. doi:10.1182/blood-2014-07-588970. ISSN 1528-0020. PMID 25612622.
  25. ↑ Nakashima, Yasuhiro; et al. (2005-11). "Genome-wide array-based comparative genomic hybridization of natural killer cell lymphoma/leukemia: different genomic alteration patterns of aggressive NK-cell leukemia and extranodal Nk/T-cell lymphoma, nasal type". Genes, Chromosomes & Cancer. 44 (3): 247–255. doi:10.1002/gcc.20245. ISSN 1045-2257. PMID 16049916. Check date values in: |date= (help)
  26. ↑ Siu, L. L.; et al. (2000-12). "Consistent patterns of allelic loss in natural killer cell lymphoma". The American Journal of Pathology. 157 (6): 1803–1809. doi:10.1016/S0002-9440(10)64818-3. ISSN 0002-9440. PMC 1885756. PMID 11106552. Check date values in: |date= (help)
  27. ↑ Siu, L. L.; et al. (1999-11). "Comparative genomic hybridization analysis of natural killer cell lymphoma/leukemia. Recognition of consistent patterns of genetic alterations". The American Journal of Pathology. 155 (5): 1419–1425. doi:10.1016/S0002-9440(10)65454-5. ISSN 0002-9440. PMC 1866965. PMID 10550295. Check date values in: |date= (help)
  28. ↑ Wong, K. F.; et al. (1999-07). "Cytogenetic abnormalities in natural killer cell lymphoma/leukaemia--is there a consistent pattern?". Leukemia & Lymphoma. 34 (3–4): 241–250. doi:10.3109/10428199909050949. ISSN 1042-8194. PMID 10439361. Check date values in: |date= (help)
  29. ↑ Ko, Y. H.; et al. (2001-04-15). "Comparative genomic hybridization study of nasal-type NK/T-cell lymphoma". Cytometry. 46 (2): 85–91. doi:10.1002/cyto.1069. ISSN 0196-4763. PMID 11309817.
  30. ↑ Tien, H. F.; et al. (1997-06). "Clonal chromosomal abnormalities as direct evidence for clonality in nasal T/natural killer cell lymphomas". British Journal of Haematology. 97 (3): 621–625. doi:10.1046/j.1365-2141.1997.752711.x. ISSN 0007-1048. PMID 9207410. Check date values in: |date= (help)
  31. ↑ Feldman, Andrew L.; et al. (2008-08). "Incidence of TCR and TCL1 gene translocations and isochromosome 7q in peripheral T-cell lymphomas using fluorescence in situ hybridization". American Journal of Clinical Pathology. 130 (2): 178–185. doi:10.1309/PNXUKA1CFJMVGCN1. ISSN 0002-9173. PMC 3625137. PMID 18628085. Check date values in: |date= (help)
  32. ↑ 32.0 32.1 32.2 Koo, Ghee Chong; et al. (2012-07). "Janus kinase 3-activating mutations identified in natural killer/T-cell lymphoma". Cancer Discovery. 2 (7): 591–597. doi:10.1158/2159-8290.CD-12-0028. ISSN 2159-8290. PMID 22705984. Check date values in: |date= (help)
  33. ↑ Bouchekioua, A.; et al. (2014-02). "JAK3 deregulation by activating mutations confers invasive growth advantage in extranodal nasal-type natural killer cell lymphoma". Leukemia. 28 (2): 338–348. doi:10.1038/leu.2013.157. ISSN 1476-5551. PMID 23689514. Check date values in: |date= (help)
  34. ↑ Nairismägi, M.-L.; et al. (2018-05). "Oncogenic activation of JAK3-STAT signaling confers clinical sensitivity to PRN371, a novel selective and potent JAK3 inhibitor, in natural killer/T-cell lymphoma". Leukemia. 32 (5): 1147–1156. doi:10.1038/s41375-017-0004-x. ISSN 1476-5551. PMC 5940653. PMID 29434279. Check date values in: |date= (help)
  35. ↑ 35.00 35.01 35.02 35.03 35.04 35.05 35.06 35.07 35.08 35.09 35.10 Jiang, Lu; et al. (2015-09). "Exome sequencing identifies somatic mutations of DDX3X in natural killer/T-cell lymphoma". Nature Genetics. 47 (9): 1061–1066. doi:10.1038/ng.3358. ISSN 1546-1718. PMID 26192917. Check date values in: |date= (help)
  36. ↑ 36.0 36.1 36.2 36.3 Küçük, Can; et al. (2015-01-14). "Activating mutations of STAT5B and STAT3 in lymphomas derived from γδ-T or NK cells". Nature Communications. 6: 6025. doi:10.1038/ncomms7025. ISSN 2041-1723. PMC 7743911 Check |pmc= value (help). PMID 25586472.
  37. ↑ 37.0 37.1 37.2 37.3 37.4 37.5 Lee, Seungbok; et al. (2015-07-10). "Genetic alterations of JAK/STAT cascade and histone modification in extranodal NK/T-cell lymphoma nasal type". Oncotarget. 6 (19): 17764–17776. doi:10.18632/oncotarget.3776. ISSN 1949-2553. PMC 4627344. PMID 25980440.
  38. ↑ Wang, Yali; et al. (2023-08). "Preclinical characterization of WB737, a potent and selective STAT3 inhibitor, in natural killer/T-cell lymphoma". MedComm. 4 (4): e284. doi:10.1002/mco2.284. ISSN 2688-2663. PMC PMC10274570 Check |pmc= value (help). PMID 37334274 Check |pmid= value (help). Check date values in: |date= (help)CS1 maint: PMC format (link)
  39. ↑ 39.0 39.1 Ng, Siok-Bian; et al. (2011-03). "Activated oncogenic pathways and therapeutic targets in extranodal nasal-type NK/T cell lymphoma revealed by gene expression profiling". The Journal of Pathology. 223 (4): 496–510. doi:10.1002/path.2823. ISSN 1096-9896. PMID 21294123. Check date values in: |date= (help)
  40. ↑ 40.0 40.1 40.2 40.3 40.4 40.5 40.6 Huang, Yenlin; et al. (2010-02-11). "Gene expression profiling identifies emerging oncogenic pathways operating in extranodal NK/T-cell lymphoma, nasal type". Blood. 115 (6): 1226–1237. doi:10.1182/blood-2009-05-221275. ISSN 1528-0020. PMC 2826234. PMID 19965620.
  41. ↑ Yan, Junli; et al. (2016-08-18). "EZH2 phosphorylation by JAK3 mediates a switch to noncanonical function in natural killer/T-cell lymphoma". Blood. 128 (7): 948–958. doi:10.1182/blood-2016-01-690701. ISSN 1528-0020. PMID 27297789.
  42. ↑ 42.0 42.1 42.2 Hoshida, Yoshihiko; et al. (2003-03). "Analysis of p53, K-ras, c-kit, and beta-catenin gene mutations in sinonasal NK/T cell lymphoma in northeast district of China". Cancer Science. 94 (3): 297–301. doi:10.1111/j.1349-7006.2003.tb01436.x. ISSN 1347-9032. PMC PMC11160272 Check |pmc= value (help). PMID 12824925. Check date values in: |date= (help)CS1 maint: PMC format (link)
  43. ↑ Takahara, Miki; et al. (2004-01). "P53, N- and K-Ras, and beta-catenin gene mutations and prognostic factors in nasal NK/T-cell lymphoma from Hokkaido, Japan". Human Pathology. 35 (1): 86–95. doi:10.1016/j.humpath.2003.08.025. ISSN 0046-8177. PMID 14745729. Check date values in: |date= (help)
  44. ↑ Shen, Lijun; et al. (2002-12). "Frequent deletion of Fas gene sequences encoding death and transmembrane domains in nasal natural killer/T-cell lymphoma". The American Journal of Pathology. 161 (6): 2123–2131. doi:10.1016/S0002-9440(10)64490-2. ISSN 0002-9440. PMC 1850920. PMID 12466128. Check date values in: |date= (help)
  45. ↑ Takakuwa, Tetsuya; et al. (2002-07-11). "Frequent mutations of Fas gene in nasal NK/T cell lymphoma". Oncogene. 21 (30): 4702–4705. doi:10.1038/sj.onc.1205571. ISSN 0950-9232. PMID 12096347.
  46. ↑ Hongyo, T.; et al. (2000-05-01). "Specific c-kit mutations in sinonasal natural killer/T-cell lymphoma in China and Japan". Cancer Research. 60 (9): 2345–2347. ISSN 0008-5472. PMID 10811105.
  47. ↑ Sugimoto, Kei-ji; et al. (2002-11). "Molecular analysis of oncogenes, ras family genes (N-ras, K-ras, H-ras), myc family genes (c-myc, N-myc) and mdm2 in natural killer cell neoplasms". Japanese Journal of Cancer Research: Gann. 93 (11): 1270–1277. doi:10.1111/j.1349-7006.2002.tb01234.x. ISSN 0910-5050. PMC 5926889. PMID 12460470. Check date values in: |date= (help)
  48. ↑ 48.0 48.1 Quintanilla-Martinez, L.; et al. (2001-12). "p53 Mutations in nasal natural killer/T-cell lymphoma from Mexico: association with large cell morphology and advanced disease". The American Journal of Pathology. 159 (6): 2095–2105. doi:10.1016/S0002-9440(10)63061-1. ISSN 0002-9440. PMC 1850589. PMID 11733360. Check date values in: |date= (help)
  49. ↑ Hongyo, Tadashi; et al. (2005-02). "p53, K-ras, c-kit and beta-catenin gene mutations in sinonasal NK/T-cell lymphoma in Korea and Japan". Oncology Reports. 13 (2): 265–271. ISSN 1021-335X. PMID 15643509. Check date values in: |date= (help)
  50. ↑ Selvarajan, V.; et al. (2017-10). "RUNX3 is oncogenic in natural killer/T-cell lymphoma and is transcriptionally regulated by MYC". Leukemia. 31 (10): 2219–2227. doi:10.1038/leu.2017.40. ISSN 1476-5551. PMC 5629367. PMID 28119527. Check date values in: |date= (help)
  51. ↑ 51.0 51.1 51.2 51.3 51.4 51.5 51.6 51.7 Huang, Yenlin; et al. (2013-03). "Molecular underpinning of extranodal NK/T-cell lymphoma". Best Practice & Research. Clinical Haematology. 26 (1): 57–74. doi:10.1016/j.beha.2013.04.006. ISSN 1532-1924. PMID 23768641. Check date values in: |date= (help)
  52. ↑ Küçük, Can; et al. (2011-12-13). "PRDM1 is a tumor suppressor gene in natural killer cell malignancies". Proceedings of the National Academy of Sciences of the United States of America. 108 (50): 20119–20124. doi:10.1073/pnas.1115128108. ISSN 1091-6490. PMC 3250125. PMID 22143801.
  53. ↑ Küçük, Can; et al. (2013-01). "HACE1 is a tumor suppressor gene candidate in natural killer cell neoplasms". The American Journal of Pathology. 182 (1): 49–55. doi:10.1016/j.ajpath.2012.09.012. ISSN 1525-2191. PMC 3532710. PMID 23142381. Check date values in: |date= (help)
  54. ↑ 54.0 54.1 54.2 54.3 54.4 54.5 54.6 de Mel, Sanjay; et al. (2019-04-02). "Molecular pathogenic pathways in extranodal NK/T cell lymphoma". Journal of Hematology & Oncology. 12 (1): 33. doi:10.1186/s13045-019-0716-7. ISSN 1756-8722. PMC 6444858. PMID 30935402.

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