alexa A novel cytotoxic ternary copper(II) complex of 1,10-phenanthroline and L-threonine with DNA nuclease activity.
Pulmonology

Pulmonology

Journal of Pulmonary & Respiratory Medicine

Author(s): Zhang S, Zhu Y, Tu C, Wei H, Yang Z,

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Abstract A novel ternary copper(II) complex, [Cu(phen)(L-Thr)(H2O)](ClO4) (phen=1,10-phenanthroline, L-Thr=L-threonine), has been synthesized and structurally characterized. The complex crystallized in a triclinic system with space group P1 , a=7.526(15) A, b=11.651(2) A, c=12.127(2) A, alpha=115.41(3) degrees , beta=102.34(3) degrees and gamma=91.33(3) degrees . The copper(II) center is situated in a distorted square-pyramidal geometry. At a concentration of 10(-6) mol L(-1), the complex exhibited potent cytotoxic effects against human leukemia cell line HL-60 and human stomach cancer cell line SGC-7901 with inhibition rates of over 90\%, however, less pronounced effects were observed for human liver carcinoma cell line BEL-7402 and human non-small-cell lung cancer cell line A-549. The complex was shown to bind DNA by intercalation and cleave pBR322 DNA in the presence of ascorbate. This article was published in J Inorg Biochem and referenced in Journal of Pulmonary & Respiratory Medicine

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