Annotation Detail

Information
Associated Genes
BCL2L11
Associated Variants
BCL2L11 DELETION POLYMORPHISM
BCL2L11 DELETION POLYMORPHISM
Associated Disease
chronic myeloid leukemia
Source Database
CIViC Evidence
Description
DNA sequencing was performed in five Ph+ CML samples with sensitivity or resistance to imatinib. A structural variation in BIM2 (BCL2L11) with an identical 2,903-bp genomic deletion was identified in all three resistant samples. 2,597 healthy individuals were screened and the deletion polymorphism was identified in 12.3% of East Asian Population but 0% in African or European Population. In-vitro, imatinib-induced apoptosis was reduced in cells harboring the BIM deletion polymorphism. Two East Asian CML cohorts (n=203) treated with imatinib were analzed for the polymorphism. Overall odds ratio for resistant disease among subjects with the deletion polymorphism compared to those without it was 2.94 (P = 0.02, 95% CI 1.17–7.43). Patients with the polymorphism, compared to those without, were more likely to be resistant without BCR-ABL mutations than resistant with BCR-ABL mutation or sensitive (odds ratio = 1.90, 95% CI 1.08–4.35).
Variant Origin
Common Germline
Variant Origin
Common Germline
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1280
Gene URL
https://civic.genome.wustl.edu/links/genes/7953
Variant URL
https://civic.genome.wustl.edu/links/variants/526
Rating
4
Evidence Type
Predictive
Disease
Chronic Myeloid Leukemia
Evidence Direction
Supports
Drug
Imatinib
Evidence Level
B
Clinical Significance
Resistance
Pubmed
22426421
Drugs
Drug NameSensitivitySupported
ImatinibResitance or Non-Reponsetrue