Synthesis and Biological Evaluation of Novel Allobetulon/Allobetulin–Nucleoside Conjugates as AntitumorAgents
作者:Yanli Wang、Xiaowan Huang、Xiao Zhang、Jingchen Wang、Keyan Li、Guotao Liu、Kexin Lu、Xiang Zhang、Chengping Xie、Teresa Zheng、Yung-Yi Cheng、Qiang Wang
DOI:10.3390/molecules27154738
日期:——
apoptosis of cancer cells with low toxicity. However, both of them exhibited weak antiproliferation against several tumor cell lines. Therefore, the new series of allobetulon/allobetulin–nucleoside conjugates 9a–10i were designed and synthesized for potency improvement. Compounds 9b, 9e, 10a, and 10d showed promising antiproliferative activity toward six tested cell lines, compared to zidovudine, cisplatin
Allobetulin与白桦脂酸结构相似,可诱导癌细胞凋亡,毒性低。然而,它们都对几种肿瘤细胞系表现出较弱的抗增殖作用。因此,设计和合成了新系列的 allobetulon/allobetulin-核苷缀合物9a - 10i以提高效力。基于它们的抗肿瘤活性结果,与齐多夫定、顺铂和奥沙利铂相比,化合物9b、9e、10a和10d对六种测试细胞系显示出有希望的抗增殖活性。其中,化合物10d对 SMMC-7721、HepG2、MNK-45、SW620 和 A549 人类癌细胞系表现出比顺铂和奥沙利铂更强的抗增殖活性。在作用机制的初步研究中,化合物10d诱导SMMC细胞发生细胞凋亡和自噬,通过调节Bax、Bcl-2和LC3的蛋白表达水平导致抗增殖和G0/G1细胞周期停滞。因此,基于我们目前的研究,核苷缀合的别叶甜菜素 ( 10d ) 证明了核苷取代是提高别叶甜菜素/别叶甜菜素抗肿瘤活性的可行策略。