A ruthenium(II) complex containing a p-cresol group induces apoptosis in human cervical carcinoma cells through endoplasmic reticulum stress and reactive oxygen species production.

Abstract:

:The chemical structures of Ru (II) complexes are known to affect their cellular behavior and toxicity. In this study, three new luminescent Ru (II) complexes, [Ru(bpy)2(HIPMP)](ClO4)2 (Ru1, bpy = 2,2'-bipyridine, HIPMP = 2-(1H-imidazo-[4,5-f] [1,10] phenanthrolin-2-yl)-4-methylphenol), [Ru(phen)2(HIPMP)](ClO4)2 (Ru2, phen = 1,10-phenanthroline), [Ru(dmb)2(HIPMP)](ClO4)2 (Ru3, dmb = 4,4'-dimethyl-2,2'-bipyridine), were synthesized, and their anticancer activities were examined. All three complexes displayed anticancer activities against various cancer cells, with Ru2 exhibiting the highest cytotoxic activities. Ru2 was shown to accumulate specifically in the endoplasmic reticulum (ER) and induce ER stress-mediated apoptosis. In addition, Ru2 could generate reactive oxygen species (ROS) and trigger mitochondrial membrane potential depolarization. These results demonstrated that Ru2 induced apoptosis in HeLa cells through ER stress and ROS production.

journal_name

J Inorg Biochem

authors

Xu L,Zhang PP,Fang XQ,Liu Y,Wang JQ,Zhou HZ,Chen ST,Chao H

doi

10.1016/j.jinorgbio.2018.11.015

subject

Has Abstract

pub_date

2019-02-01 00:00:00

pages

126-134

eissn

0162-0134

issn

1873-3344

pii

S0162-0134(18)30451-3

journal_volume

191

pub_type

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