HAEM5:Acute myeloid leukaemia with CEBPA mutation: Difference between revisions

<blockquote class='blockedit'>{{Box-round|title=Content Update To WHO 5th Edition Classification Is In Process; Content Below is Based on WHO 4th Edition Classification|This page was converted to the new template on 2023-12-07. The original page can be found at [[HAEM4:Acute Myeloid Leukemia (AML) with Biallelic Mutations of CEBPA]].

<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 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>

Paul Defazio, MSc, Monash Health

 

 

==Definition / Description of Disease==

 

 

 

==Synonyms / Terminology==

 

 

 

|'''Signs and Symptoms'''

|<span class="blue-text">EXAMPLE:</span> Asymptomatic (incidental finding on complete blood counts)

 

 

 

|'''Laboratory Findings'''

|<span class="blue-text">EXAMPLE:</span> Cytopenias

 

!Finding!!Marker

|Positive (universal)||<span class="blue-text">EXAMPLE:</span> CD1

|Positive (subset)||<span class="blue-text">EXAMPLE:</span> CD2

|Negative (universal)||<span class="blue-text">EXAMPLE:</span> CD3

|-

|Negative (subset)||<span class="blue-text">EXAMPLE:</span> CD4

!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

|<span class="blue-text">EXAMPLE:</span> t(9;22)(q34;q11.2)||<span class="blue-text">EXAMPLE:</span> 3'ABL1 / 5'BCR||<span class="blue-text">EXAMPLE:</span> der(22)||<span class="blue-text">EXAMPLE:</span> 20% (COSMIC)

|Yes

|Yes

|<span class="blue-text">EXAMPLE:</span>

!Chromosomal Rearrangement!!Genes in Fusion (5’ or 3’ Segments)!!Pathogenic Derivative!!Prevalence

|<span class="blue-text">EXAMPLE:</span> t(9;22)(q34;q11.2)||<span class="blue-text">EXAMPLE:</span> 3'ABL1 / 5'BCR||<span class="blue-text">EXAMPLE:</span> der(22)||<span class="blue-text">EXAMPLE:</span> 5%

|<span class="blue-text">EXAMPLE:</span> t(8;21)(q22;q22)||<span class="blue-text">EXAMPLE:</span> 5'RUNX1 / 3'RUNXT1||<span class="blue-text">EXAMPLE:</span> der(8)||<span class="blue-text">EXAMPLE:</span> 5%

 

 

<blockquote class='blockedit'>{{Box-round|title=v4:Clinical Significance (Diagnosis, Prognosis and Therapeutic Implications).|Please incorporate this section into the relevant tables found in:

 

 

 

 

{| class="wikitable sortable"

|-

 

|<span class="blue-text">EXAMPLE:</span> Loss

|<span class="blue-text">EXAMPLE:</span>

 

chr7:1- 159,335,973 [hg38]

 

|Yes

|Yes

 

|<span class="blue-text">EXAMPLE:</span>

 

 

|<span class="blue-text">EXAMPLE:</span>

 

|No

|No

|No

|<span class="blue-text">EXAMPLE:</span>

 

!Chromosome Number!!Gain/Loss/Amp/LOH!!Region

|-

|<span class="blue-text">EXAMPLE:</span> 8||<span class="blue-text">EXAMPLE:</span> Gain||<span class="blue-text">EXAMPLE:</span> chr8:0-1000000

|<span class="blue-text">EXAMPLE:</span> 7||<span class="blue-text">EXAMPLE:</span> Loss||<span class="blue-text">EXAMPLE:</span> chr7:0-1000000

<center><span style="color:Maroon">'''End of V4 Section'''</span>

Put your text here <span style="color:#0070C0">(''EXAMPLE PATTERNS: hyperdiploid; gain of odd number chromosomes including typically chromosome 1, 3, 5, 7, 11, and 17; co-deletion of 1p and 19q; complex karyotypes without characteristic genetic findings; chromothripsis. Do not delete table.'')</span>

 

{| class="wikitable sortable"

|-

!Prognostic Significance (Yes, No or Unknown)

|-

|<span class="blue-text">EXAMPLE:</span>

See chromosomal rearrangements table as this pattern is due to an unbalanced derivative translocation associated with oligodendroglioma (add reference).

|}

 

<blockquote class='blockedit'>{{Box-round|title=v4:Characteristic Chromosomal Aberrations / Patterns|The content below was from the old template. Please incorporate above.}}</blockquote>

 

Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: This table is not meant to be an exhaustive list; please include only genes/alterations that are recurrent and common as well as either disease defining and/or clinically significant. Can include references in the table. For clinical significance, denote associations with FDA-approved therapy (not an extensive list of applicable drugs) and NCCN or other national guidelines if applicable. Can also refer to CGC workgroup tables as linked on the homepage if applicable as well as any high impact papers or reviews of gene mutations in this entity. Do not delete table.'') </span>

 

{| class="wikitable sortable"

!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)

|<span class="blue-text">EXAMPLE:</span> TP53; Variable LOF mutations

 

 

 

|<span class="blue-text">EXAMPLE:</span> TSG

|<span class="blue-text">EXAMPLE:</span> 20% (COSMIC)

 

<span class="blue-text">EXAMPLE:</span> 30% (add Reference)

|}

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.

<blockquote class='blockedit'>{{Box-round|title=v4:Gene Mutations (SNV/INDEL)|The content below was from the old template. Please incorporate above.}}</blockquote>

 

Pathogenic mutations in ''CEBPA'' are predominantly insertion/deletion frameshift mutations in the N-terminal TAD region and in-frame C-terminal bZIP mutations. No particular mutational hotspots exist but the following table records the most reported mutations in the COSMIC database (frequency based on a count out of 1523 mutations):

 

{| class="wikitable sortable"

|-

|-

|''CEBPA''||c.939_940insAAG, p.K313_V314insK||Oncogene||LOF||52

|''CEBPA''||c.68_69insC, p.H24fs*84||Oncogene||LOF||43

|-

|''CEBPA''||c.247delC, p.Q83fs*77||Oncogene||LOF||32

|''CEBPA''||c.936_937insCAG, p.Q312_K313insQ||Oncogene||LOF||28

|''CEBPA''||c.912_913insTTG, p.K304_Q305insL||Oncogene||LOF||24

|}

Concurrent mutations in ''NPM1'' and ''FLT3'' are seen less frequently in individuals with biallelic ''CEBPA'' mutations than in those with no or monoallelic mutations<ref name=":2" />. Conversely, mutations in ''GATA2'' appear to occur more often in ''CEBPA'' single- and double-mutants<ref>{{Cite journal|last=Green|first=Claire L.|last2=Tawana|first2=Kiran|last3=Hills|first3=Robert K.|last4=Bödör|first4=Csaba|last5=Fitzgibbon|first5=Jude|last6=Inglott|first6=Sarah|last7=Ancliff|first7=Phil|last8=Burnett|first8=Alan K.|last9=Linch|first9=David C.|date=2013|title=GATA2 mutations in sporadic and familial acute myeloid leukaemia patients with CEBPA mutations|url=https://www.ncbi.nlm.nih.gov/pubmed/23560626|journal=British Journal of Haematology|volume=161|issue=5|pages=701–705|doi=10.1111/bjh.12317|issn=1365-2141|pmid=23560626}}</ref>. The prognostic significance of these concomitant mutations is, however, unclear. Biallelic ''CEBPA'' mutations appear to confer a positive prognostic effect regardless of concomitant mutations.

Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: Can include references in the table. Do not delete table.'')</span>

|<span class="blue-text">EXAMPLE:</span> BRAF and MAP2K1; Activating mutations

|<span class="blue-text">EXAMPLE:</span> CDKN2A; Inactivating mutations

|<span class="blue-text">EXAMPLE:</span>  KMT2C and ARID1A; Inactivating mutations

|<span class="blue-text">EXAMPLE:</span>  Histone modification, chromatin remodeling

|<span class="blue-text">EXAMPLE:</span>  Abnormal gene expression program

Familial mutations of ''CEBPA'' have been described in several families<ref name=":3" /><ref>{{Cite journal|last=Nanri|first=Tomoko|last2=Uike|first2=Naokuni|last3=Kawakita|first3=Toshiro|last4=Iwanaga|first4=Eisaku|last5=Mitsuya|first5=Hiroaki|last6=Asou|first6=Norio|date=2010|title=A family harboring a germ-line N-terminal C/EBPalpha mutation and development of acute myeloid leukemia with an additional somatic C-terminal C/EBPalpha mutation|url=https://www.ncbi.nlm.nih.gov/pubmed/19953636|journal=Genes, Chromosomes & Cancer|volume=49|issue=3|pages=237–241|doi=10.1002/gcc.20734|issn=1098-2264|pmid=19953636}}</ref><ref>{{Cite journal|last=Sellick|first=G. S.|last2=Spendlove|first2=H. E.|last3=Catovsky|first3=D.|last4=Pritchard-Jones|first4=K.|last5=Houlston|first5=R. S.|date=2005|title=Further evidence that germline CEBPA mutations cause dominant inheritance of acute myeloid leukaemia|url=https://www.ncbi.nlm.nih.gov/pubmed/15902292|journal=Leukemia|volume=19|issue=7|pages=1276–1278|doi=10.1038/sj.leu.2403788|issn=0887-6924|pmid=15902292}}</ref>. Typically, these are N-terminal mutations that are later joined by a somatic C-terminal mutation on the opposite allele leading to AML.

(use the "Cite" icon at the top of the page) <span style="color:#0070C0">(''Instructions: Add each reference into the text above by clicking on where you want to insert the reference, selecting the “Cite” icon at the top of the page, and using the “Automatic” tab option to search such as by PMID to select the reference to insert. The reference list in this section will be automatically generated and sorted.''</span> <span style="color:#0070C0">''If a PMID is not available, such as for a book, please use the “Cite” icon, select “Manual” and then “Basic Form”, and include the entire reference''</span><span style="color:#0070C0">''.''</span><span style="color:#0070C0">) </span> <references />

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[[Category:HAEM5]][[Category:DISEASE]][[Category:Diseases A]]