PMID- 34555601 OWN - NLM STAT- MEDLINE DCOM- 20220222 LR - 20220222 IS - 1873-3344 (Electronic) IS - 0162-0134 (Linking) VI - 225 DP - 2021 Dec TI - Systematic evaluation of the antitumor activity of three ruthenium polypyridyl complexes. PG - 111616 LID - S0162-0134(21)00263-4 [pii] LID - 10.1016/j.jinorgbio.2021.111616 [doi] AB - Ruthenium-containing complexes have emerged as good alternative to the currently used platinum-containing drugs for malignant tumor therapy. In this work, cytotoxic effects of recently synthesized ruthenium polypyridyl complexes [Ru(bpy)(2)(CFPIP)](ClO(4))(2) (bpy = 2,2'-bipyridine, CFPIP = (E)-2-(4-fluorostyryl)-1H-imidazo[4,5-f][1,10]phenanthroline, Ru(II)-1), [Ru(phen)(2)(CFPIP)](ClO(4))(2) (phen = 1,10-phenanthroline, Ru(II)-2) and [Ru(dmb)(2)(CFPIP)](ClO(4))(2) (dmb = 4,4'-dimethyl-2,2'-bipyridine, Ru(II)-3) toward different tumor cells were investigated in vitro and compared with cisplatin, the most widely used chemotherapeutic drug against hepatocellular carcinoma (HepG-2). The results demonstrate that target complexes show excellent cytotoxicity against HepG-2 cells with low IC(50) value of 21.4 +/- 1.5, 18.0 +/- 2.1 and 22.3 +/- 1.7 muM, respectively. It was important noting that target Ru(II) complexes exhibited better antitumor activity than cisplatin (IC50 = 28.5 +/- 2.4 muM) against HepG-2 cells, and has no obvious toxicity to normal cell LO2. DNA binding results suggest that Ru(II)-1, Ru(II)-2 and Ru(II)-3 interact with CT DNA (calf thymus DNA) through intercalative mode. Complexes exerted its antitumor activity through increasing anti-migration and inducing cell cycle arrest at the S phase. In addition, the apoptosis was tested by AO (acridine orange)/EB (ethidium bromide) staining and flow cytometry. Mitochondrial membrane potential (MMP), reactive oxygen species (ROS), and colocalization tests were also evaluated by ImageXpress Micro XLS system. Overall, the results show that the ruthenium polypyridyl complexes induce apoptosis in HepG-2 cells through ROS-mediated mitochondria dysfunction pathway. CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Jiang, Guang-Bin AU - Jiang GB AD - Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China. Electronic address: jianggb@glut.edu.cn. FAU - Zhang, Wen-Yao AU - Zhang WY AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. FAU - He, Miao AU - He M AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. FAU - Gu, Yi-Ying AU - Gu YY AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. FAU - Bai, Lan AU - Bai L AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. FAU - Wang, Yang-Jie AU - Wang YJ AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. FAU - Yi, Qiao-Yan AU - Yi QY AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. FAU - Du, Fan AU - Du F AD - School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210920 PL - United States TA - J Inorg Biochem JT - Journal of inorganic biochemistry JID - 7905788 RN - 0 (Antineoplastic Agents) RN - 0 (Coordination Complexes) RN - 0 (Pyridines) RN - 0 (Reactive Oxygen Species) RN - 7UI0TKC3U5 (Ruthenium) RN - 9007-49-2 (DNA) RN - 91080-16-9 (calf thymus DNA) SB - IM MH - Animals MH - Antineoplastic Agents/chemical synthesis/metabolism/*pharmacology MH - Apoptosis/drug effects MH - Cattle MH - Cell Line, Tumor MH - Cell Movement/drug effects MH - Cell Proliferation/drug effects MH - Coordination Complexes/chemical synthesis/metabolism/*pharmacology MH - DNA/metabolism MH - Drug Screening Assays, Antitumor MH - Humans MH - Membrane Potential, Mitochondrial/drug effects MH - Mitochondria/drug effects MH - Pyridines/chemical synthesis/metabolism/*pharmacology MH - Reactive Oxygen Species/metabolism MH - Ruthenium/chemistry MH - S Phase Cell Cycle Checkpoints/drug effects OTO - NOTNLM OT - Antitumor activity OT - Apoptosis OT - Cell cycle arrest OT - Mitochondria OT - Ruthenium(II) complexes EDAT- 2021/09/24 06:00 MHDA- 2022/02/23 06:00 CRDT- 2021/09/23 20:19 PHST- 2021/07/09 00:00 [received] PHST- 2021/08/20 00:00 [revised] PHST- 2021/09/14 00:00 [accepted] PHST- 2021/09/24 06:00 [pubmed] PHST- 2022/02/23 06:00 [medline] PHST- 2021/09/23 20:19 [entrez] AID - S0162-0134(21)00263-4 [pii] AID - 10.1016/j.jinorgbio.2021.111616 [doi] PST - ppublish SO - J Inorg Biochem. 2021 Dec;225:111616. doi: 10.1016/j.jinorgbio.2021.111616. Epub 2021 Sep 20.