Abstract
Immunotherapy is changing the landscape of cancer treatment. Nonetheless, not all malignancies respond, possibly due to low mutational load. Recent work in a TP53-/-BRCA1-mutant murine breast cancer model indicates that double blockade with two immune checkpoint inhibitors increases the number of tumor-infiltrating lymphocytes and overall survival after DNA damaging chemotherapy, whereas single blockade does not. These findings suggest an approach to enhance the impact of immune checkpoint blockade in BRCA-mutated tumors.
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