Syntheses, crystal structures and biological evaluation of two new Cu(II) and Co(II) complexes based on (E)-2-(((4H-1,2,4-triazol-4-yl)imino)methyl)-6-methoxyphenol

Add time:07/30/2019    Source:sciencedirect.com

Two transition metal complexes of [M(TMP)2(H2O)2] (TMP-Cu, M = Cu; TMP-Co, M = Co) with (E)-2-(((4H-1,2,4-triazol-4-yl)imino)methyl)-6-methoxyphenol (H-TMP) were first synthesized and characterized by infrared analysis, elemental analysis and single crystal X-ray diffraction analysis. Notably, MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay showed that TMP-Cu displayed relatively high cytotoxic activity against Hep-G2 cancer cells, and high selectivity between human hepatocellular carcinoma cells and normal HL-7702 cells, in comparison to TMP-Co and cisplatin. Further studies showed that TMP-Cu and TMP-Co caused cell cycle arrest at S phase through regulation of S phase related protein expressions and induced Hep-G2 cell apoptosis via the mitochondrial pathway.

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