Publicação: Synthesis and cytotoxicity of a ruthenium nitrosyl nitric oxide donor with isonicotinic acid and a cell penetrating peptide
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2013-02-01
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The syntheses and properties of trans-[Ru(NH3) 4(L)(NO)](BF4)3 (L = isonicotinic acid (inaH) (I) or ina-Tat48-60 (II)) are described. Tat48-60, a cell penetrating peptide fragment of the Tat regulatory protein of the HIV virus, was linked to the ruthenium nitrosyl through inaH. I and II release NO after reduction forming trans-[Ru(NH3)4(L)(H2O)]3 +. The IC50 values against B16-F10 melanoma cells of I and II (21 μmol L- 1 and 23 μmol L- 1, respectively) are close to that of the commercially available cisplatin (33 μmol L- 1) and smaller than similar complexes. The cytotoxicity is assigned to the NO released from I and II. © 2012 Elsevier B.V.
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Inorganic Chemistry Communications, v. 28, p. 60-63.
