39481-55-5Relevant articles and documents
An Inhibitor of the Interaction of Survivin with Smac in Mitochondria Promotes Apoptosis
Park, Seong-Hyun,Shin, Insu,Park, Sang-Hyun,Kim, Nam Doo,Shin, Injae
supporting information, p. 4035 - 4041 (2019/08/02)
Herein we report the first small molecule that disrupts the survivin-Smac interaction taking place in mitochondria. The inhibitor, PZ-6-QN, was identified by initially screening a phenothiazine library using a fluorescence anisotropy assay and then conducting a structure–activity relationship study. Mutagenesis and molecular docking studies suggest that PZ-6-QN binds to survivin similarly to the known Smac peptide, AVPI. The results of the effort also show that PZ-6-QN exhibits good anticancer activity against various cancer cells. Moreover, cell-based mechanistic studies provide evidence for the proposal that PZ-6-QN enters mitochondria to inhibit the survivin-Smac interaction and promotes release of Smac and cytochrome c from mitochondria into the cytosol, a process that induces apoptosis in cancer cells. Overall, the present study suggests that PZ-6-QN can serve as a novel chemical probe for study of processes associated with the mitochondrial survivin-Smac interaction and it will aid the discovery of novel anticancer agents.
Identification of a non peptidic RANTES antagonist
Bright, Colin,Brown, Thomas J.,Cox, Paul,Halley, Frank,Lockey, Peter,McLay, Iain M.,Moore, Una,Porter, Barry,Williams, Robert J.
, p. 771 - 774 (2007/10/03)
A series of phenothiazines demonstrating inhibition of RANTES binding to THP-1 cell membranes has been identified. The lead compound RP23618 (IC50 = 3 μM) was found to inhibit specific binding of 125I-RANTES, but not 125I-MCP-1 to THP-1 cell membranes and furthermore to antagonise RANTES, but not MCP-1-induced chemotaxis of THP-1 cells.