Design and Synthesis of Potent Nonpeptidic Farnesyltransferase Inhibitors Based on a Terphenyl Scaffold
摘要:
By modification of key carboxylate, hydrophobic, and zinc-binding groups projected from a sterically restricted terphenyl scaffold, a series of simple and nonpeptide mimetics of the Cys-Val-Ile-Met tetrapeptide substrate of protein farnesyltransferase (FTase) have been designed and synthesized. A crystal structure of 4-nitro-2-phenyl-3'-methoxycarbonylbiphenyl shows that the triphenyl fragment provides a large hydrophobic surface that potentially mimics the hydrophobic side chains of the three terminal residues in the tetrapeptide. 2-Phenyl-3-(N-(1-(4-eyanobenzyl)-1H-imidazol-5-yl)methyl)amino-3'carboxylbiphenyl, in which the free thiol group was replaced with a 1-(4-cyanobenzyl)imidazole group, shows submicromolar inhibition activity against FTase in vitro and inhibits H-Ras processing in whole cells.
An Activatable Hybrid Organic–Inorganic Nanocomposite as Early Evaluation System of Therapy Effect
作者:Qinrui Fu、Hongjuan Feng、Lichao Su、Xuan Zhang、Luntao Liu、Fengfu Fu、Huanghao Yang、Jibin Song
DOI:10.1002/anie.202112237
日期:2022.2.7
FL and NIR-II PA signals by using activated caspases-3 after radiotherapy to proteolytically cleave the peptide sequence of an AuNNP@DEVD-IR1048 nanoprobe, in addition to integrating living imaging information with a radiotherapy effect using the caspase-3 enzyme as “matchmaker” and developing the relationship between each other, enable real-time evaluation and early prediction of radiotherapy effects