Annotation Detail

Information
Associated Genes
BRAF
Associated Variants
BRAF p.Val640Glu (p.V640E) ( ENST00000288602.11, ENST00000496384.7, ENST00000644969.2, ENST00000646891.2 )
BRAF p.Val640Glu (p.V640E) ( ENST00000288602.11, ENST00000496384.7, ENST00000644969.2, ENST00000646891.2 )
Associated Disease
colorectal cancer
Source Database
CIViC Evidence
Description
5 of 7 colorectal cancer (CRC) cell lines with BRAF V600E mutation were resistant to treatment with the BRAF inhibitor vemurafenib. An RNAi screen in the WiDr cell line (a V600E CRC line) identified EGFR as an enhancer for survival when exposed to vemurafenib. Treatment with vemurafenib and EGFR inhibitor (cetuximab or gefitinib) in V600E CRC cells (WiDr, VACO432 and KM20) showed inhibited growth as well as induction of the cleaved PARP apoptotic marker. WiDr and VACO432 cells were injected into immunodeficient mice. Modest response was seen with vemurafenib treatment, while combination treatment showed considerable tumor growth inhibition as compared to control.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1408
Gene URL
https://civic.genome.wustl.edu/links/genes/5
Variant URL
https://civic.genome.wustl.edu/links/variants/12
Rating
3
Evidence Type
Predictive
Disease
Colorectal Cancer
Evidence Direction
Supports
Drug
Cetuximab,Vemurafenib,Gefitinib
Evidence Level
D
Clinical Significance
Sensitivity/Response
Pubmed
22281684
Drugs
Drug NameSensitivitySupported
CetuximabSensitivitytrue
GefitinibSensitivitytrue
VemurafenibSensitivitytrue