Induction of the DNA-Repair Gene POLQ only in BRCA1-mutant Breast-Cancer Cells by Methionine Restriction.

Abstract excerpt

BACKGROUND/AIM: BRCA1/2 mutations in breast cancer cells impair homologous recombination and promote alternative end joining (Alt-EJ) for DNA-damage repair. DNA polymerase theta, encoded by POLQ, plays a crucial role in Alt-EJ, making it a potential therapeutic target, particularly in BRCA1/2-mutant cancers. Methionine restriction is a promising approach to target cancer cells due to their addiction to this amino...

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