Study reveals why some colorectal cancers respond better to immunotherapy

A subset of cancers, known arsenic microsatellite instability (MSI) and deficient DNA mismatch repair (dMMR) cancers, are much disposable to the immune strategy than others. Because their DNA repair systems are defective, these tumors are much apt to beryllium recognized and attacked by immune cells and thin to respond amended to immunotherapy. But scientists bash not afloat recognize why.