Toxic PARP trapping upon cAMP-induced DNA damage reinstates the efficacy of endocrine therapy and CDK4/6 inhibitors in treatment-refractory ER+ breast cancer.
Saatci O, Cetin M, Uner M, Tokat UM, Chatzistamou I, Ersan PG, Montaudon E, Akyol A, Aksoy S, Uner A, Marangoni E, Sajish M, Sahin O.
Saatci O, et al.
Nat Commun. 2023 Nov 2;14(1):6997. doi: 10.1038/s41467-023-42736-y.
Nat Commun. 2023.
PMID: 37914699
Free PMC article.
Mechanistically, SOC therapy downregulates phosphodiesterase 4D (PDE4D), a novel ER target gene in a feedforward loop with ER, resulting in increased cAMP, PKA-dependent phosphorylation of mitochondrial COXIV-I, ROS generation and DNA damage. However, during SOC resistance …
Mechanistically, SOC therapy downregulates phosphodiesterase 4D (PDE4D), a novel ER target gene in a feedforward loop with ER, result …