Identification of potent cholecystokinin-B receptor antagonists: synthesis, molecular modeling and anti-cancer activity against pancreatic cancer cells
作者:Saroj Kumari、Joyita Chowdhury、Manisha Sikka、Priyanka Verma、Prakash Jha、Anil K. Mishra、Daman Saluja、Madhu Chopra
DOI:10.1039/c7md00171a
日期:——
binding activity (IC50) in the range of 0.2–975 nM and showed good gastric acid secretion inhibitory activity. Molecular modeling of the compounds was done and pharmacophore mapping results showed good prediction of in vitro activity which correlated well with the experimental antagonistic activity. The compounds were further tested for their cytotoxicity on CCK-BR expressing pancreatic cancer cells. The
胰腺癌晚期恶性程度预后差,几乎没有可用的治疗策略。已知胰腺癌具有独特的与生长相关的受体,该受体在激活后会刺激肿瘤扩散。胃泌素及其相关肽胆囊收缩素(CCK)还通过激活胆囊收缩素-B受体(CCK-BR)显着参与了该癌症类型以及其他恶性肿瘤的生长。有人提出了使用CCK-BR拮抗剂的新治疗策略,以抑制胃泌素的生长促进作用。在本文中,我们报告了结合肼基甲硫代酰胺(化合物3a–g)和肼基(化合物4a–e)的两个喹唑啉酮衍生物的开发)作为开发CCK-BR拮抗剂的接头。使用对接至CCK-BR同源性建模的结构来确定化合物的亲和力。在分离的腔灌注小鼠胃试验中测试了化合物的体外CCK-BR结合和胃酸分泌。这些化合物的CCK-BR结合活性(IC 50)在0.2–975 nM范围内,并具有良好的胃酸分泌抑制活性。对化合物进行了分子建模,药效基因谱分析结果显示了良好的体外预测与实验拮抗活性密切相关的活性。进一步测试化