IRF8 - morinlab/LLMPP GitHub Wiki
bibliography: 'morinlab.bib' csl: 'NLM.csl' link-citations: true nocite: | @morinFrequentMutationHistonemodifying2011, @mottokIntegrativeGenomicAnalysis2019, @qiuIRF8mutantCellLymphoma2024, @wrightProbabilisticClassificationTool2020, @paneaWholeGenomeLandscape2019, @qiuIRF8mutantCellLymphoma2024
Overview
IRF8 (Interferon Regulatory Factor 8) is a transcription factor critical for the development and function of B lymphocytes. Mutations in IRF8 have been implicated in various lymphoid malignancies, most predominantly in FL and DLBCL. IRF8 is one of a number of genes affected by aberrant somatic hypermutation in B-cell lymphomas, which complicates the interpretation of mutations at this locus. Coding and non-coding mutations in IRF8 are associated with the EZB subgroup of DLBCL. There is preliminary evidence that IRF8 mutations contribute to immune evasion by downregulating CD74 and HLA-DM in DLBCL.[@qiuIRF8mutantCellLymphoma2024] These are crucial for processing and presentation of self antigens.
Experimental Evidence
Driver mutations affecting this gene in DLBCL/FL have been experimentally demonstrated to cause a reduction or loss of function (LOF).[@qiuIRF8mutantCellLymphoma2024]
Relevance tier by entity
Mutation incidence in large patient cohorts (GAMBL reanalysis)
DLBCL
FL
BL
Mutation pattern and selective pressure estimates
aSHM regions
chr_name | hg19_start | hg19_end | region | regulatory_comment |
---|---|---|---|---|
chr16 | 85931918 | 85933977 | TSS | active_promoter |
IRF8 Hotspots
Chromosome | Coordinate (hg19) | ref>alt | HGVSp |
---|---|---|---|
chr16 | 85936688 | T>C | Y23H |
chr16 | 85936701 | T>G | I27S |
chr16 | 85936784 | T>G | S55A |
chr16 | 85936788 | T>C | I56T |
chr16 | 85942602 | G>T | A61S |
chr16 | 85942618 | A>G | K66R |
chr16 | 85942671 | T>C | C84R |
chr16 | 85942692 | G>A | D91N |
include:tables/browser_IRF8.md
Expression
include:tables/mermaid_IRF8.md
References
[@wrightProbabilisticClassificationTool2020] [@qiuIRF8mutantCellLymphoma2024]