A small library of monovalent and bivalent Smac mimics was synthesized based on 2 types of monomers, with general structure NMeAla-Xaa-Pro-BHA (Xaa = Cys or Lys). Position 2 of the compounds was utilized to dimerize both types of monomers employing various bis-reactive linkers, as well as to modify selected compounds with lipids. The resulting library was screened in vitro against metastatic human breast cancer cell line MDA-MB-231, and the two most active compounds selected for in vivo studies. The most active lipid-conjugated analogue M11, showed in vivo activity while administered both subcutaneously and orally. Collectively, our findings suggest that lipidation may be a viable approach in the development of new Smac-based therapeutic leads. (C) 2015 Elsevier Ltd. All rights reserved.
Lipid-conjugated monovalent and bivalent secondary mitochondria derived activator of caspases (Smac) derivatives were synthesized and examined for in vitro and in vivo anticancer activity. Methods for treating cancer with these compounds are also disclosed.
作者:Ewa D. Micewicz、Josephine A. Ratikan、Alan J. Waring、Julian P. Whitelegge、William H. McBride、Piotr Ruchala
DOI:10.1016/j.bmcl.2015.09.017
日期:2015.10
A small library of monovalent and bivalent Smac mimics was synthesized based on 2 types of monomers, with general structure NMeAla-Xaa-Pro-BHA (Xaa = Cys or Lys). Position 2 of the compounds was utilized to dimerize both types of monomers employing various bis-reactive linkers, as well as to modify selected compounds with lipids. The resulting library was screened in vitro against metastatic human breast cancer cell line MDA-MB-231, and the two most active compounds selected for in vivo studies. The most active lipid-conjugated analogue M11, showed in vivo activity while administered both subcutaneously and orally. Collectively, our findings suggest that lipidation may be a viable approach in the development of new Smac-based therapeutic leads. (C) 2015 Elsevier Ltd. All rights reserved.