Annotation Detail

Information
Associated Genes
ALK
Associated Variants
ALK EML4-ALK C1156Y
Associated Disease
lung non-small cell carcinoma
Source Database
CIViC Evidence
Description
EML4-ALK variant 3 containing NSCLC cell line H2228 xenografts in SCID beige mice were treated with increasing doses of crizotinib up to 100 mg/kg per day by oral gavage. At approximately 40 days tumors progressed. 80 progressed tumors were tested for ALK mutations, and 6 mutant ALK variants were found. Two of the mutations were at ALK C1156Y. In Ba/F3 cells, EML4-ALK variant 3 with C1156Y was introduced and tested for crizotinib sensitivity. Survival IC50 value of 177 nM was reported, which is 9.3 times the IC50 reported for crizotinib in EML4-ALK wild-type Ba/F3 cells.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1346
Gene URL
https://civic.genome.wustl.edu/links/genes/1
Variant URL
https://civic.genome.wustl.edu/links/variants/6
Rating
4
Evidence Type
Predictive
Disease
Lung Non-small Cell Carcinoma
Evidence Direction
Supports
Drug
Crizotinib
Evidence Level
D
Clinical Significance
Resistance
Pubmed
24675041
Drugs
Drug NameSensitivitySupported
CrizotinibResitance or Non-Reponsetrue