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  • Title: Study on the cytotoxic activity of platinum(II) complexes of (1R,2R)-N(1)-cyclopentyl-1,2-cyclohexanediamine with substituted malonate derivatives.
    Author: Zhou Z, Chen F, Xu G, Gou S.
    Journal: Bioorg Med Chem Lett; 2016 Jan 15; 26(2):322-327. PubMed ID: 26711148.
    Abstract:
    Three platinum(II) complexes of (1R,2R)-N(1)-cyclopentyl-1,2-cyclohexanediamine with malonate derivatives were designed, synthesized and spectrally characterized. MTT assay showed that the complexes possessed positive cytotoxic effect on the four human solid tumor cell lines. Among the complexes, complex 2 demonstrated the strongest cytotoxic activity compared to cisplatin and oxaliplatin against HepG2 cell line (IC50=3.04μM). Furthermore, the results of gel electrophoresis revealed that complex 2 interacted with DNA in a different mode from that of cisplatin. Mechanism studies of cell proliferation inhibition and cellular uptake indicated that complex 2 entered HepG2 cell more efficiently than cisplatin, exhibited massive G2 accumulation and then induced apoptosis.
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