LDV peptidomimetics equipped with biotinylated spacer-arms: Synthesis and biological evaluation on CCRF-CEM cell line
作者:Estelle Gérard、Aline Meulle、Olivier Feron、Jacqueline Marchand-Brynaert
DOI:10.1016/j.bmcl.2011.10.078
日期:2012.1
The tripeptide Leu-Asp-Val (LDV) is known to bind alpha(4)beta(1) integrin in leukemia cells. Here we have synthesized a LDV peptidomimetic equipped with a biotin-conjugated spacer-arm. Compound 9 acts as an inhibitor of the alpha(4)beta(1) integrin in an adhesion assay using fluorescently labeled, alpha(4)beta(1) integrin-expressing leukemia CCRF-CEM cells. Furthermore, when bound to neutravidin-coated plates, compound 9 could capture CCRF-CEM cells. Such biotin-conjugated LDV peptidomimetic may thus represent a novel tool for biotechnological applications using avidin interaction for leukapheresis or leukemia cell targeting. (C) 2011 Elsevier Ltd. All rights reserved.