Design, synthesis, and biological evaluation of water-soluble amino acid prodrug conjugates derived from combretastatin, dihydronaphthalene, and benzosuberene-based parent vascular disrupting agents
作者:Laxman Devkota、Chen-Ming Lin、Tracy E. Strecker、Yifan Wang、Justin K. Tidmore、Zhi Chen、Rajsekhar Guddneppanavar、Christopher J. Jelinek、Ramona Lopez、Li Liu、Ernest Hamel、Ralph P. Mason、David J. Chaplin、Mary Lynn Trawick、Kevin G. Pinney
DOI:10.1016/j.bmc.2016.01.007
日期:2016.3
with improved water solubility and potentially greater bioavailability, various amino acid prodrug conjugates (AAPCs) of potent amino combretastatin, amino dihydronaphthalene, and amino benzosuberene analogs were synthesized along with their corresponding water-soluble hydrochloride salts. These compounds were evaluated for their ability to inhibit tubulin polymerization and for their cytotoxicity against
靶向肿瘤脉管系统代表了在癌症治疗中的一种有趣的治疗策略。为了发现具有改善的水溶性和潜在更高的生物利用度的新的血管破坏剂,合成了有效的氨基康他汀,氨基二氢萘和氨基苯甲sub烯类似物的各种氨基酸前药共轭物(AAPC)及其相应的水溶性盐酸盐。对这些化合物抑制微管蛋白聚合的能力以及对选定的人类癌细胞系的细胞毒性进行了评估。基于氨基的亲本抗癌药7、8、32(也称为KGP05)和33(也称为KGP156)在所有评估的细胞系中均显示出强大的细胞毒性(GI50 = 0.11-40nM),它们是微管蛋白聚合的强抑制剂(IC50 =0.62-1.5μM)。研究了各种前药缀合物及其相应的盐是否被亮氨酸氨基肽酶(LAP)切割。甘氨酸水溶性AAPC中有四个(16、18、44和45)显示LAP定量裂解,导致释放出高细胞毒性母体药物,而其他前药则观察到部分裂解(<10-90%)( 15、17、24、38和39)。19枚