Predictive markers for individual drugs have proven elusive.Approach: Microscaled proteogenomics (MPG) was applied to snap-frozen TNBC clinical trial core needle biopsies obtained before treatment with carboplatin and docetaxel (WashU: NCT201404107 and BCM: NCT02544987). Deletion of LIG1 is associated with chromosomal instability in TNBC and occurs in tumors without genomic evidence for defects in homologous recombination. Other clinical features of LIG1 deleted TNBC and how LIG1 loss may cause chromosomal instability and tumorigenesis will be discussed.
almost 4 years ago
BRCA Biomarker • PD(L)-1 Biomarker • IO biomarker
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BRCA (Breast cancer early onset) • LRIG1 (Leucine Rich Repeats And Immunoglobulin Like Domains 1)