Antileishmanial effect of a potent S-adenosylmethionine decarboxylase inhibitor: CGP 40215A.
R Mukhopadhyay, P Kapoor, R Madhubala
Index: Pharmacol. Res. 33(1) , 67-70, (1996)
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Abstract
CGP 40215A, specific S-adenosylmethionine decarboxylase (AdoMetDC) inhibitor was found to inhibit the growth of Leishmania donovani promastigotes (strain UR6) in a dose-dependent manner with an IC50 of 18 microM. The growth inhibition was reversed with 100 microM of spermidine and spermine. The growth inhibition in vitro by this inhibitor was accompanied by a significant decrease in AdoMetDC activity and spermidine levels. CGP 40215A was more potent than other AdoMetDC inhibitors, Berenil or methyl glyoxal (bis) guanyl hydrazone. The combination of CGP 40215A with other polyamine biosynthetic inhibitors like DL-alpha-difluoromethylornithine or the bis (benzyl) polyamine analogue (MDL 27695) shows an accentuated inhibitory effect on leishmanial growth.
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