Annotation Detail

Information
Associated Genes
HLA-C
Associated Variants
HLA-C COPY-NEUTRAL LOSS OF HETEROZYGOSITY
HLA-C COPY-NEUTRAL LOSS OF HETEROZYGOSITY
Associated Disease
colorectal cancer
Source Database
CIViC Evidence
Description
A patient with metastatic colorectal cancer was enrolled in a phase 2 clinical trial (NCT01174121). 24 cultures of tumor-infiltrating lymphocytes were expanded from 3 lung metastasis resections. After cultures were tested for reactivity, the patient was infused with 1.48 x 10^11 tumor-infiltrating lymphocytes (75% CD8+ T cells) that were specifically reactive to KRAS G12D and HLA-C*08:02. A single lesion that progressed after 9 months still expressed the KRAS G12D mutation. Whole-exome analysis revealed copy-neutral loss of heterozygosity at chromosome 6, encoding the HLA locus and resulting in loss of the targeted HLA-C*08:02 allele.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1899
Gene URL
https://civic.genome.wustl.edu/links/genes/2608
Variant URL
https://civic.genome.wustl.edu/links/variants/821
Rating
3
Evidence Type
Predictive
Disease
Colorectal Cancer
Evidence Direction
Supports
Drug
Therapeutic Tumor Infiltrating Lymphocytes
Evidence Level
C
Clinical Significance
Resistance
Pubmed
27959684
Drugs
Drug NameSensitivitySupported
Therapeutic Tumor Infiltrating LymphocytesResitance or Non-Reponsetrue