Alcohol-, Diol-, and Carbohydrate-Substituted Indenoisoquinolines as Topoisomerase I Inhibitors: Investigating the Relationships Involving Stereochemistry, Hydrogen Bonding, and Biological Activity
作者:Katherine E. Peterson、Maris A. Cinelli、Andrew E. Morrell、Akhil Mehta、Thomas S. Dexheimer、Keli Agama、Smitha Antony、Yves Pommier、Mark Cushman
DOI:10.1021/jm101338z
日期:2011.7.28
topoisomerase I (Top1) can be inhibited by heterocyclic compounds such as indolocarbazoles and indenoisoquinolines. Carbohydrate and hydroxyl-containing side chains are essential for the biological activity of indolocarbazoles. The current study investigated how similar functionalities could be “translated” to the indenoisoquinoline system and how stereochemistry and hydrogenbonding affect biological
Synthesis and biological evaluation of new fluorinated and chlorinated indenoisoquinoline topoisomerase I poisons
作者:Daniel E. Beck、Wei Lv、Monica Abdelmalak、Caroline B. Plescia、Keli Agama、Christophe Marchand、Yves Pommier、Mark Cushman
DOI:10.1016/j.bmc.2016.02.015
日期:2016.4
nitro group at the 3-position of indenoisoquinoline topoisomerase IB (Top1) poisons. A number of strategies were employed in the present investigation to enhance the Top1 inhibitory potencies and cancer cell growth inhibitory activities of halogenated indenoisoquinolines. In several cases, the new compounds' activities were found to rival or surpass those of similarly substituted 3-nitroindenoisoquinolines
The effect of MR1 ligand glyco-analogues on mucosal-associated invariant T (MAIT) cell activation
作者:Chriselle D. Braganza、Kensuke Shibata、Aisa Fujiwara、Chihiro Motozono、Koh-Hei Sonoda、Sho Yamasaki、Bridget L. Stocker、Mattie S. M. Timmer
DOI:10.1039/c9ob01436e
日期:——
MAIT cells revealed that the absence of the 2'-hydroxygroup on the sugar backbone of lumazines improved MR1-MAIT TCR binding, which could be rationalised using computational docking studies. Although none of the lumazines activated MAIT cells, all 5-OP-RU analogues showed significant MAIT cell activation, with several analogues exhibiting comparable activity to 5-OP-RU. Docking studies with the 5-OP-RU