Mutational profiling of colorectal cancers with microsatellite instability.

Abstract excerpt

Microsatellite instability (MSI) is caused by defective mismatch repair in 15-20% of colorectal cancers (CRCs). Higher mutation loads in tumors with mismatch repair deficiency can predict response to pembrolizumab, an anti-programmed death 1 (PD-1) immune checkpoint inhibitor. We analyzed the mutations in 113 CRCs without MSI (MSS) and 29 CRCs with MSI-High (MSI-H) using the 50-gene AmpliSeq cancer panel....

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