MHY219 is a novel HDAC inhibitor. MHY219 induces apoptosis via up-regulation of androgen receptor expression in human prostate cancer cells. MHY219 was shown to enhance the cytotoxicity on DU145 cells (IC50, 0.36 μM) when compared with LNCaP (IC50, 0.97 μM) and PC3 cells (IC50, 5.12 μM). MHY219 showed a potent inhibition of total HDAC activity when compared with SAHA. MHY219 increased histone H3 hyperacetylation and reduced the expression of class I HDACs (1, 2 and 3) in prostate cancer cells. MHY219 effectively increased the sub-G1 fraction of cells through p21 and p27 dependent pathways in DU145 cells. MHY219 significantly induced a G2 M phase arrest in DU145 and PC3 cells and arrested the cell cycle at G0 G1 phase in LNCaP cells. Furthermore, MHY219 effectively increased apoptosis in DU145 and LNCaP cells, but not PC3 cells, according to Annexin V PI staining and Western blot analysis. These results indicate that MHY219 is a potent HDAC inhibitor that targets regulating mu......
CDKI-83 is a potent CDK9 inhibitor. The compound shows effective anti-proliferative activity in human tumour cell lines with GI50 <1 μM, and is capable of inducing apoptosis in A2780 human ovarian cancer cells as determined by the activated caspase-3, Annexin V PI double staining and accumulated cells at the sub-G1 phase of cellcycle. The research results suggest that combined inhibition of CDK9 and CDK1 may result in the effective induction of apoptosis and CDKI-83 has the potential to be developed as an anti-cancer agent.
Alpha-terthienylmethanol possesses potent cytotoxic activity against human endometrial cancer cells; it inhibits growth mediated by the induction of apoptosis, as shown by the accumulation of sub-G1 and apoptotic cells.
Cristacarpin exhibits moderate but selective activity towards DNA repair-deficient yeast mutants. It promotes endoplasmic reticulum (ER) stress, leading to sub-lethal reactive oxygen species (ROS) generation and which eventually terminates by triggering s