Synthesis and Biological Evaluation of Celastrol Derivatives with Improved Cytotoxic Selectivity and Antitumor Activities
作者:Xiao-Long Hu、Qi-Wei He、Huan Long、Li-Xin Zhang、Rong Wang、Bao-Lin Wang、Jia-Hao Feng、Quan Wang、Ji-Qin Hou、Xiao-Qi Zhang、Wen-Cai Ye、Hao Wang
DOI:10.1021/acs.jnatprod.1c00262
日期:2021.7.23
natural friedelane triterpenoid, can disrupt the Hsp90–Cdc37 interaction to provide antitumor effects. In this study, 31 new celastrol derivatives, 2a–2d, 3a–3g, and 4a–4t, were designed and synthesized, and their Hsp90–Cdc37 disruption activities and antiproliferative activities against cancer cells were evaluated. Among these compounds, 4f, with the highest tumor cell selectivity (15.4-fold), potent
Cdc37 将激酶客户与 Hsp90 关联起来并促进癌症的发展。 Celastrol 是一种天然的油炸三萜类化合物,可以破坏 Hsp90-Cdc37 相互作用,从而提供抗肿瘤作用。在这项研究中,设计并合成了31种新的雷公藤红醇衍生物2a – 2d 、 3a – 3g和4a – 4t ,并评估了它们的Hsp90–Cdc37破坏活性和抗癌细胞增殖活性。在这些化合物中, 4f具有最高的肿瘤细胞选择性(15.4 倍)、有效的 Hsp90–Cdc37 破坏活性(IC 50 = 1.9 μM)和对 MDA-MB-231 细胞的抗增殖活性(IC 50 = 0.2 μM),被选为先导化合物。进一步的研究表明, 4f通过破坏 Hsp90-Cdc37 相互作用并抑制血管生成,在体外和体内都具有很强的抗肿瘤活性。此外, 4f 的毒性比雷公藤红素低,并且在体内表现出良好的药代动力学特征。这些发现表明4f可能是开发新癌症疗法的有希望的候选者。