文章基本信息

标题：Nucleus-enriched Ruthenium Polypyridine Complex Acts as a Potent Inhibitor to Suppress Triple-negative Breast Cancer Metastasis In vivo
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作者：Xuanhao Zhao ; Li Li ; Gengnan Yu 等
期刊名称：Computational and Structural Biotechnology Journal
印刷版ISSN：2001-0370
出版年度：2019
卷号：17
页码：21-30
DOI：10.1016/j.csbj.2018.11.010
出版社：Computational and Structural Biotechnology Journal
摘要：Polypyridine Ru(II) complexes have long been deemed to excellent antitumor agents that inhibit the proliferation of breast cancer cells. Nevertheless, their effects on the metastatic potency of breast cancer cells need further research. Herein, a class of polypyridine Ru(II) complexes coordinated with phenazine derivates (DPPZ) ([Ru(bpy)2(DPPZ-R)](ClO4)2, Ru(bpy) 2 DPPZ : R = -H, Ru(bpy) 2 BrDPPZ : R = -Br, Ru(bpy) 2 MDPPZ : R = -CH3, Ru(bpy)2BnDPPZ : R = −acene, Ru(bpy) 2 BEDPPZ : R = -C ≡ C(C6H5)) was synthesized by introducing different substituent groups to regulate the electron cloud density and planarity of the main ligands. Results indicated that this class of DPPZ-based Ru(II) complexes exhibited promising inhibitory effect against MDA-MB-231 triple-negative breast cancer cells, especially for Ru(bpy) 2 BEDPPZ , which is comparable with that of cisplatin. In addition, Ru(bpy) 2 BEDPPZ effectively inhibited the migration and invasion of MDA-MB-231 cells in vitroand suppressed focal adhesion and stress fiber formation. Moreover, it effectively blocked MDA-MB-231 cell metastasis in blood vessels and restrained angiogenesis formation in a zebrafish xenograft breast cancer model. Further studies showed that the mechanisms may involve DNA damage-mediated apoptosis probably due to Ru(bpy) 2 BEDPPZ , which was enriched in the cell nucleus and induced DNA damage. All these results suggested that the DPPZ-based Ru(II) complexes can act as potent anti-metastasis agents.
关键词：DPPZ-based Ru(II) complexes ; triple-negative breast cancer ; angiogenesis inhibitor ; metastasis ; DNA damage