Compendium of Cancer Genome Aberrations

HAEM5:B-lymphoblastic leukaemia/lymphoma with high hyperdiploidy: Difference between revisions

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==Gene Rearrangements==
==Gene Rearrangements==


No recurrent gene fusions or rearrangements have been detected.<ref name=":0" />
Although no recurrent gene fusions or rearrangements a typically found, a study found reciprocal translocations involving the ''IGK'' locus in 2 cases <ref>{{Cite journal|last=Paulsson|first=Kajsa|last2=Lilljebjörn|first2=Henrik|last3=Biloglav|first3=Andrea|last4=Olsson|first4=Linda|last5=Rissler|first5=Marianne|last6=Castor|first6=Anders|last7=Barbany|first7=Gisela|last8=Fogelstrand|first8=Linda|last9=Nordgren|first9=Ann|date=2015-06|title=The genomic landscape of high hyperdiploid childhood acute lymphoblastic leukemia|url=https://pubmed.ncbi.nlm.nih.gov/25961940|journal=Nature Genetics|volume=47|issue=6|pages=672–676|doi=10.1038/ng.3301|issn=1546-1718|pmid=25961940}}</ref>.


Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: Details on clinical significance such as prognosis and other important information can be provided in the notes section. Please include references throughout the table. Do not delete the table.'')</span>
Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: Details on clinical significance such as prognosis and other important information can be provided in the notes section. Please include references throughout the table. Do not delete the table.'')</span>
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!Clinical Relevance Details/Other Notes
!Clinical Relevance Details/Other Notes
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|<span class="blue-text">EXAMPLE:</span> ''ABL1''||<span class="blue-text">EXAMPLE:</span> ''BCR::ABL1''||<span class="blue-text">EXAMPLE:</span> The pathogenic derivative is the der(22) resulting in fusion of 5’ BCR and 3’ABL1.||<span class="blue-text">EXAMPLE:</span> t(9;22)(q34;q11.2)
|''IGK''||<span class="blue-text">EXAMPLE:</span> ''BCR::ABL1''||<span class="blue-text">EXAMPLE:</span> The pathogenic derivative is the der(22) resulting in fusion of 5’ BCR and 3’ABL1.||t(2;19)(p11.2;q13.32)
|<span class="blue-text">EXAMPLE:</span> Common (CML)
|Rare
|<span class="blue-text">EXAMPLE:</span> D, P, T
|No established significance.
|<span class="blue-text">EXAMPLE:</span> Yes (WHO, NCCN)
|No
|<span class="blue-text">EXAMPLE:</span>
|Not described.
The t(9;22) is diagnostic of CML in the appropriate morphology and clinical context (add reference). This fusion is responsive to targeted therapy such as Imatinib (Gleevec) (add reference). BCR::ABL1 is generally favorable in CML (add reference).
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|<span class="blue-text">EXAMPLE:</span> ''CIC''
|''IGK''
|<span class="blue-text">EXAMPLE:</span> ''CIC::DUX4''
|<span class="blue-text">EXAMPLE:</span> ''CIC::DUX4''
|<span class="blue-text">EXAMPLE:</span> Typically, the last exon of ''CIC'' is fused to ''DUX4''. The fusion breakpoint in ''CIC'' is usually intra-exonic and removes an inhibitory sequence, upregulating ''PEA3'' genes downstream of ''CIC'' including ''ETV1'', ''ETV4'', and ''ETV5''.
|<span class="blue-text">EXAMPLE:</span> Typically, the last exon of ''CIC'' is fused to ''DUX4''. The fusion breakpoint in ''CIC'' is usually intra-exonic and removes an inhibitory sequence, upregulating ''PEA3'' genes downstream of ''CIC'' including ''ETV1'', ''ETV4'', and ''ETV5''.
|<span class="blue-text">EXAMPLE:</span> t(4;19)(q25;q13)
|t(2;8)(p11.2;q21.13)
|<span class="blue-text">EXAMPLE:</span> Common (CIC-rearranged sarcoma)
|Rare
|<span class="blue-text">EXAMPLE:</span> D
|No established significance.
|
|No
|<span class="blue-text">EXAMPLE:</span>
|Not described.
 
''DUX4'' has many homologous genes; an alternate translocation in a minority of cases is t(10;19), but this is usually indistinguishable from t(4;19) by short-read sequencing (add references).
|-
|<span class="blue-text">EXAMPLE:</span> ''ALK''
|<span class="blue-text">EXAMPLE:</span> ''ELM4::ALK''
 
 
Other fusion partners include ''KIF5B, NPM1, STRN, TFG, TPM3, CLTC, KLC1''
|<span class="blue-text">EXAMPLE:</span> Fusions result in constitutive activation of the ''ALK'' tyrosine kinase. The most common ''ALK'' fusion is ''EML4::ALK'', with breakpoints in intron 19 of ''ALK''. At the transcript level, a variable (5’) partner gene is fused to 3’ ''ALK'' at exon 20. Rarely, ''ALK'' fusions contain exon 19 due to breakpoints in intron 18.
|<span class="blue-text">EXAMPLE:</span> N/A
|<span class="blue-text">EXAMPLE:</span> Rare (Lung adenocarcinoma)
|<span class="blue-text">EXAMPLE:</span> T
|
|<span class="blue-text">EXAMPLE:</span>
 
Both balanced and unbalanced forms are observed by FISH (add references).
|-
|<span class="blue-text">EXAMPLE:</span> ''ABL1''
|<span class="blue-text">EXAMPLE:</span> N/A
|<span class="blue-text">EXAMPLE:</span> Intragenic deletion of exons 2–7 in ''EGFR'' removes the ligand-binding domain, resulting in a constitutively active tyrosine kinase with downstream activation of multiple oncogenic pathways.
|<span class="blue-text">EXAMPLE:</span> N/A
|<span class="blue-text">EXAMPLE:</span> Recurrent (IDH-wildtype Glioblastoma)
|<span class="blue-text">EXAMPLE:</span> D, P, T
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|Chr18
|Chr18
|
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|Prognostic significance: has been correlated with a lower risk of relapse
|Prognostic significance: has been correlated with a lower risk of relapse<ref name=":1">{{Cite journal|last=Moorman|first=Anthony V.|last2=Ensor|first2=Hannah M.|last3=Richards|first3=Sue M.|last4=Chilton|first4=Lucy|last5=Schwab|first5=Claire|last6=Kinsey|first6=Sally E.|last7=Vora|first7=Ajay|last8=Mitchell|first8=Chris D.|last9=Harrison|first9=Christine J.|date=2010-05|title=Prognostic effect of chromosomal abnormalities in childhood B-cell precursor acute lymphoblastic leukaemia: results from the UK Medical Research Council ALL97/99 randomised trial|url=https://pubmed.ncbi.nlm.nih.gov/20409752|journal=The Lancet. Oncology|volume=11|issue=5|pages=429–438|doi=10.1016/S1470-2045(10)70066-8|issn=1474-5488|pmid=20409752}}</ref>.
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|Chr4
|Chr4
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|The prognostic impact of the “triple trisomies”, i.e., concurrent rent +4, +10, and +17, is debated; they have been reported to be associated with low risk by the Children’s Oncology Group (COG) but not in UK trials<ref name=":1" /><ref>{{Cite journal|last=Schultz|first=Kirk R.|last2=Pullen|first2=D. Jeanette|last3=Sather|first3=Harland N.|last4=Shuster|first4=Jonathan J.|last5=Devidas|first5=Meenakshi|last6=Borowitz|first6=Michael J.|last7=Carroll|first7=Andrew J.|last8=Heerema|first8=Nyla A.|last9=Rubnitz|first9=Jeffrey E.|date=2007-02-01|title=Risk- and response-based classification of childhood B-precursor acute lymphoblastic leukemia: a combined analysis of prognostic markers from the Pediatric Oncology Group (POG) and Children's Cancer Group (CCG)|url=https://pubmed.ncbi.nlm.nih.gov/17003380|journal=Blood|volume=109|issue=3|pages=926–935|doi=10.1182/blood-2006-01-024729|issn=0006-4971|pmc=1785141|pmid=17003380}}</ref>.
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|Chr17
|Chr17
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|''See prognosis section for +4 above.''
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|Chr10
|Chr10
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|''See prognosis section for +4 above.''
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|Hyperdiploid  
|Hyperdiploid
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