DP-C-4 is a Cereblon-based dual PROTAC for simultaneous degradation of EGFR and PARP[1]. DP-C-4 (1-50 μM; 24 hours) has degradation effects on EGFR and PARP simultaneously in a dose-dependent manner in SW1990 cells[1]. [1]. Mengzhu Zheng, et al. Rational Design and Synthesis of Novel Dual PROTACs for Simultaneous Degradation of EGFR and PARP. J Med Chem. 2021 May 26.
Rucaparib (AG014699) acetate is a highly effective oral inhibitor of PARP proteins, specifically targeting PARP-1, PARP-2, and PARP-3, with a Ki value of 1.4 nM for PARP1. Additionally, it exhibits inhibitory action on hexose-6-phosphate dehydrogenase (H6PD) to a moderate extent. Rucaparib acetate shows promise in the field of research for castration-resistant prostate cancer (CRPC). [1] [2] [3] [4]
Rucaparib hydrochloride, also known as AG014699, is a powerful and orally active compound that inhibits PARP proteins including PARP-1, PARP-2, and PARP-3 with a Ki value of 1.4 nM for PARP1. Additionally, Rucaparib hydrochloride acts as a modest inhibitor of hexose-6-phosphate dehydrogenase (H6PD). This compound shows potential in research for castration-resistant prostate cancer (CRPC) [1] [2] [3] [4].
CGP74514A is a CDK1 inhibitor with potential anticancer activity. In U937 cells, CGP74514A - induced apoptosis (5 microM) became apparent within 4 hr and approached 100% by 24 hr. The pan- caspase inhibitor Boc-fmk and the caspase-8 inhibitor lETD-fmk opposed CGP74514A -induced caspase-9 activation and PARP degradation, but not cytochrome c or Smac DIABLO release. CGP74514A -mediated apoptosis was substantially blocked by ectopic expression of full-length Bel- 2, a loop-deleted mutant Bcl-2, and Bcl-x(L). CGP74514A treatment (5 microM; 18 hr) resulted in increased p21(CIP1) expression, p27(KIP1) degradation, diminished E2F1 expression, and dephosphorylation of p34(CDC2). It also induced early (i.e., within 2 hr) inhibition of CDK1 activity and dephosphorylation of pRb, followed by pRb degradation, but did not block pRb phosphorylation at CDK2- and CDK4- specific sites. These findings indicate that the selective CDK1 inhibitor, CGP74514A , induces complex changes in cell cycle......