HAEM5:Hepatosplenic T-cell lymphoma: Difference between revisions
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!Clinical Relevance Details/Other Notes | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
| | |7 | ||
7 | |Gain | ||
| | |7q, chr7 | ||
| | |Unknown | ||
chr7 | |D, P | ||
| | |No | ||
Unknown | |Considered a primary aberration<ref name=":2" />, seen in 40-70% of cases<ref name=":1" /> | ||
| | |||
|< | |||
|- | |- | ||
|< | |8 | ||
|Gain (trisomy) | |||
|Chr8 | |||
| | |Unknown | ||
|D, P | |||
| | |No | ||
Unknown | |Considered a secondary aberration<ref name=":2" />, seen in 10-50% of cases<ref name=":1" /> | ||
| | |- | ||
| | |Y | ||
|< | |Loss | ||
|ChrY | |||
|Unknown | |||
|Unknown | |||
|No | |||
|Seen in 20-25% of cases<ref name=":1" /> | |||
|- | |- | ||
| | |10 | ||
|Loss | |||
| | |10q, chr10 | ||
| | |Unknown | ||
|P | |||
| | |No | ||
|Seen in 10-20% of cases<ref name=":1" /> | |||
| | |||
| | |||
|< | |||
|- | |- | ||
| | |1 | ||
| | |Gain | ||
| | |1q, chr1 | ||
| | |Unknown | ||
| | |P | ||
| | |No | ||
| | |Seen in 10-15% of cases<ref name=":1" /> | ||
|} | |} | ||
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|Chr10 | |Chr10 | ||
|No | |No | ||
| | |Yes | ||
|No | |No | ||
|Seen in 10-20% of cases<ref name=":1" /> | |Seen in 10-20% of cases<ref name=":1" /> | ||
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|Chr1 | |Chr1 | ||
|No | |No | ||
| | |Yes | ||
|No | |No | ||
|Seen in 10-15% of cases<ref name=":1" /> | |Seen in 10-15% of cases<ref name=":1" /> | ||
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!Clinical Relevance Details/Other Notes | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
|< | |Isochromosome 7q<ref name=":8" /> and chromosome 7 imbalances including ring chromosome 7. | ||
Can be seen in conjunction with trisomy 8 | |||
|Cases with chromosome 7 abnormalities show: | |||
*Constant loss of 7p22.1p14.1 (34.88 Mb; 3506316-38406226 bp)<ref name=":3" /> | |||
*Gain of 7q22.11q31.1 (38.77 Mb; 86259620–124892276 bp)<ref name=":3" /> | |||
|Common | |||
|D, P | |||
|No | |||
|See table under "Genomic Gain/Loss/LOH" | |||
Co-occurrence of Isochromosome 7q and trisomy 8 can be seen in 8-53% of cases<ref name=":2" /> | |||
Cases without diagnostic detection of i(7q) or trisomy 8, often have detection of these abnormalities at the time of relapse or disease progression<ref name=":2" /> | |||
|- | |- | ||
| | |Loss of chromosome 10q | ||
Gain of chromosome 1q | |||
| | | | ||
|Recurrent | |||
|P | |||
|No | |||
|occur in a significant minority of HSTL cases<ref name=":4" /> | |||
|} | |} | ||
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!Notes | !Notes | ||
|- | |- | ||
|Isochromosome 7q<ref>{{Cite journal|last=Wlodarska|first=Iwona|last2=Martin-Garcia|first2=Nadine|last3=Achten|first3=Ruth|last4=De Wolf-Peeters|first4=Chris|last5=Pauwels|first5=Patrick|last6=Tulliez|first6=Micheline|last7=de Mascarel|first7=Antoine|last8=Brière|first8=Josette|last9=Patey|first9=Martine|date=2002-03|title=Fluorescence in situ hybridization study of chromosome 7 aberrations in hepatosplenic T-cell lymphoma: isochromosome 7q as a common abnormality accumulating in forms with features of cytologic progression|url=https://pubmed.ncbi.nlm.nih.gov/11807981|journal=Genes, Chromosomes & Cancer|volume=33|issue=3|pages=243–251|doi=10.1002/gcc.10021|issn=1045-2257|pmid=11807981}}</ref> and chromosome 7 imbalances including ring chromosome 7. | |Isochromosome 7q<ref name=":8">{{Cite journal|last=Wlodarska|first=Iwona|last2=Martin-Garcia|first2=Nadine|last3=Achten|first3=Ruth|last4=De Wolf-Peeters|first4=Chris|last5=Pauwels|first5=Patrick|last6=Tulliez|first6=Micheline|last7=de Mascarel|first7=Antoine|last8=Brière|first8=Josette|last9=Patey|first9=Martine|date=2002-03|title=Fluorescence in situ hybridization study of chromosome 7 aberrations in hepatosplenic T-cell lymphoma: isochromosome 7q as a common abnormality accumulating in forms with features of cytologic progression|url=https://pubmed.ncbi.nlm.nih.gov/11807981|journal=Genes, Chromosomes & Cancer|volume=33|issue=3|pages=243–251|doi=10.1002/gcc.10021|issn=1045-2257|pmid=11807981}}</ref> and chromosome 7 imbalances including ring chromosome 7. | ||
Cases with chromosome 7 abnormalities show: | Cases with chromosome 7 abnormalities show: | ||
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|No | |No | ||
|See table under "Genomic Gain/Loss/LOH" | |See table under "Genomic Gain/Loss/LOH" | ||
Co-occurrence of Isochromosome 7q and trisomy 8 can be seen in 8-53% of cases<ref name=":2" /> | Co-occurrence of Isochromosome 7q and trisomy 8 can be seen in 8-53% of cases<ref name=":2" /> | ||
Cases without diagnostic detection of i(7q) or trisomy 8, often have detection of these abnormalities at the time of relapse or disease progression<ref name=":2" /> | Cases without diagnostic detection of i(7q) or trisomy 8, often have detection of these abnormalities at the time of relapse or disease progression<ref name=":2" /> | ||
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!Clinical Relevance Details/Other Notes | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
|< | |''STAT3''; missense mutation | ||
|missense mutation | |||
|Oncogenic driver mutation | |||
|Recurrent | |||
|T | |||
|No | |||
|Also seen in 40% of T-large granular lymphocyte leukemia<ref name=":2" /> | |||
|- | |||
|''STAT5b''; missense mutation | |||
|missense mutation | |||
|Oncogenic driver mutation | |||
|Common | |||
|D, T | |||
|No | |||
|Highest functional potency: ''STAT5B'' N642H and V712E mutations<ref name=":2" /> | |||
One study showed increased CD56 expression with ''STAT5b''<ref name=":9" /> | |||
Also seen in ~2% of T-large granular lymphocyte leukemia<ref name=":2" /> | |||
|- | |- | ||
| | |''PIK3CD'' | ||
|Activating mutations | |||
|Activate signaling | |||
| | pathways important to cell survival<ref name=":4" /> | ||
| | |Recurrent | ||
| | |T | ||
|No | |||
| | | | ||
|- | |- | ||
| | |''SETD2''; biallelic LOF | ||
|< | |biallelic LOF | ||
|< | |Tumor suppressor gene, chromatin modifier*<ref name=":4" /> | ||
|Common | |||
|D, T | |||
|No | |||
|''SET2–RPB1'' interacting domain (SRI) domain ( 31 ) at the COOH-terminus of the SETD2 protein product | |||
Most frequently silenced gene and most frequent mutated chromatin modifier in HSTL<ref name=":4" /> | |||
71% of cases showing at least one LOF mutation<ref name=":4" />, and more than 44% of patients with ''SETD2'' mutations had more than 1 mutation detected<ref name=":2" /> | |||
|- | |||
|''INO80'' | |||
| | | | ||
|Chromatin modifier* | |||
|Common | |||
|D, P, T | |||
|No | |||
| | | | ||
|- | |- | ||
|''ARID1B'' | |||
| | | | ||
|Chromatin modifier* | |||
|Recurrent | |||
|Unknown | |||
|No | |||
| | | | ||
|- | |||
|''TET3'' | |||
| | | | ||
|Chromatin modifier* | |||
|Recurrent | |||
|D, T | |||
|No | |||
| | | | ||
|- | |||
|''SMARCA2'' | |||
| | | | ||
| | |Chromatin modifier* | ||
|Recurrent | |||
|Unknown | |||
|No | |||
| | | | ||
|}Note: A more extensive list of mutations can be found in [https://www.cbioportal.org/ <u>cBioportal</u>], [https://cancer.sanger.ac.uk/cosmic <u>COSMIC</u>], and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | |}Note: A more extensive list of mutations can be found in [https://www.cbioportal.org/ <u>cBioportal</u>], [https://cancer.sanger.ac.uk/cosmic <u>COSMIC</u>], and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | ||
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One study showed increased CD56 expression with ''STAT5b''<ref>{{Cite journal|last=Nicolae|first=A.|last2=Xi|first2=L.|last3=Pittaluga|first3=S.|last4=Abdullaev|first4=Z.|last5=Pack|first5=S. D.|last6=Chen|first6=J.|last7=Waldmann|first7=T. A.|last8=Jaffe|first8=E. S.|last9=Raffeld|first9=M.|date=2014-11|title=Frequent STAT5B mutations in γδ hepatosplenic T-cell lymphomas|url=https://pubmed.ncbi.nlm.nih.gov/24947020|journal=Leukemia|volume=28|issue=11|pages=2244–2248|doi=10.1038/leu.2014.200|issn=1476-5551|pmc=7701980|pmid=24947020}}</ref> | One study showed increased CD56 expression with ''STAT5b''<ref name=":9">{{Cite journal|last=Nicolae|first=A.|last2=Xi|first2=L.|last3=Pittaluga|first3=S.|last4=Abdullaev|first4=Z.|last5=Pack|first5=S. D.|last6=Chen|first6=J.|last7=Waldmann|first7=T. A.|last8=Jaffe|first8=E. S.|last9=Raffeld|first9=M.|date=2014-11|title=Frequent STAT5B mutations in γδ hepatosplenic T-cell lymphomas|url=https://pubmed.ncbi.nlm.nih.gov/24947020|journal=Leukemia|volume=28|issue=11|pages=2244–2248|doi=10.1038/leu.2014.200|issn=1476-5551|pmc=7701980|pmid=24947020}}</ref> | ||