Novel Indole–Chalcone Derivative-Ligated Platinum(IV) Prodrugs Attenuate Cisplatin Resistance in Lung Cancer through ROS/ER Stress and Mitochondrial Dysfunction
作者:Zhikun Liu、Meng Wang、Rizhen Huang、Tianhui Hu、Yi Jing、Xiaochao Huang、Weiwei Hu、Guoxiu Cao、Hengshan Wang
DOI:10.1021/acs.jmedchem.2c02036
日期:——
against the tested cells but showed lower cytotoxicity toward human normal lung cells. Detailed mechanisms demonstrated that 17a significantly enhanced intracellular accumulation, induced DNA damage, and inhibited migration in A549/CDDP cells. Furthermore, 17a efficiently disturbed the tubulin–microtubule system, initiated reactive oxygen species (ROS)-mediated endoplasmicreticulumstress, and activated
Synthesis, Evaluation, and Mechanism Study of Novel Indole-Chalcone Derivatives Exerting Effective Antitumor Activity Through Microtubule Destabilization in Vitro and in Vivo
作者:Jun Yan、Jie Chen、Shun Zhang、Jinhui Hu、Ling Huang、Xingshu Li
DOI:10.1021/acs.jmedchem.6b00021
日期:2016.6.9
Twenty-nine novel indole-chalcone derivatives were synthesized and evaluated for antiproliferative activity. Among them, 14k exhibited most potent activity, with IC50 values of 3-9 nM against six cancer cells, which displayed a 3.8-8.7-fold increase in activity when compare with compound 2. Further investigation revealed 14k was a novel tubulin polymerization inhibitor binding to the colchicine site. Its low cytotoxicity toward normal human cells and nearly equally potent activity against drug resistant cells revealed the possibility for cancer therapy. Cellular mechanism studies elucidated 14k arrests cell cycle at G(2)/M phase and induces apoptosis along with the decrease of mitochondrial membrane potential. Furthermore, good metabolic stability of 14k was observed in mouse liver microsomes. Importantly, 14k and its phosphate salt 14k-P inhibited tumor growth in xenograft models in vivo without apparent toxicity, which was better than the reference compound CA-4P and 2. In summary, 14k deserves consideration for cancer therapy.
Novel indole–chalcone platinum(IV) complexes as tubulin polymerization inhibitors to overcome oxaliplatin resistance in colorectal cancer