BRCA2 and breast cancer: In the present study, we explored the predictivevalue of DNA repair gene expression for response to NACT in BC by evaluating themRNA expression of 11 selected genes that have a key role in DNA repair mechanisms.In addition, BRCA1, BRCA2, RAD51C, ATM, and PALB2are tightly correlated with breast cancer and have been associated with breastcancer predisposition, clinicopathological features, and prognosis (11).