| 18183430 |
Griffith D, Cecco S, Zangrando E, Bergamo A, Sava G, Marmion CJ: Ruthenium (III) dimethyl sulfoxide pyridinehydroxamic acid complexes as potential antimetastatic agents: synthesis, characterisation and in vitro pharmacological evaluation. J Biol Inorg Chem. 2008 May;13(4):511-20.
Reaction of 3-pyridinehydroxamic acid and 4-pyridinehydroxamic acid (3-pyha and 4-pyha) with either [NBu4][RuCl4 (dmso-S) 2] or [(dmso) 2H][RuCl4 (dmso-S) 2] (dmso is dimethyl sulfoxide) in acetone afforded three new ruthenium (III) dimethyl sulfoxide pyridinehydroxamic acid complexes: [NBu4][trans-RuCl4 (dmso-S)(4-pyha)] x CH3CO CH3 (1), [3-pyhaH][trans-RuCl4 (dmso-S)(3-pyha)] (2) and [4-pyhaH][trans-RuCl4 (dmso-S)(4-pyha)] (3). The solid-state structure of [NBu4][trans-RuCl4 (dmso-S)(4-pyha)] x CH3COCH3 (1) was determined by X-ray crystallography. 2 and 3 were pharmacologically evaluated for their in vitro cytotoxicity, their ability to inhibit cell invasion and their gelatinase activity. 2 and 3 were devoid of cytotoxicity against the cell lines tested. 2 inhibited invasion of the highly invasive MDA-MB-231 cells to a much greater extent than 3. Contrary to expectations, neither 2 nor 3 had any inhibitory effect on matrix metalloproteinase (MMP) production and/or activity and in fact 3 was found to enhance the production and/or activity of both MMP-2 and MMP-9. |
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