Synthesis and biological evaluation of tyrosine modified analogues of the α4β7 integrin inhibitor biotin-R8ERY
作者:Stefanie Papst、Anaïs F.M. Noisier、Margaret A. Brimble、Yi Yang、Geoffrey W. Krissansen
DOI:10.1016/j.bmc.2012.07.010
日期:2012.9
inflammatory bowel disease, type 1 diabetes and multiple sclerosis. The synthesis of a small library of cell-permeable β7 integrin inhibitors based on the peptide biotin-R8ERY is reported, in which the tyrosine residue has been modified by using the Suzuki-Miyaura cross-coupling reaction. The synthesised peptidomimetics were evaluated in a cell adhesion assay and shown to inhibit Mn2+-activated adhesion
α4β7整联蛋白是针对各种炎症疾病(包括炎症性肠病,1型糖尿病和多发性硬化症)的药物开发的众所周知的靶标。据报道,基于肽生物素-R 8 ERY的细胞可渗透性β7整联蛋白抑制剂小文库的合成,其中酪氨酸残基已通过Suzuki-Miyaura交叉偶联反应进行了修饰。在细胞粘附测定中评估了合成的拟肽,并显示出其抑制了小鼠TK-1 T细胞与小鼠MAdCAM-1的Mn 2+活化粘附。所有合成的拟肽均比我们先前报道的含生物类似物6和7中的两个类似物的先导化合物生物素-R 8 ERY更具活性。,其IC 50值小于15μM。