| Literature DB >> 15673775 |
D Sereno1, A Monte Alegre, R Silvestre, B Vergnes, A Ouaissi.
Abstract
Our study represents the first report demonstrating the antileishmanial activity of nicotinamide (NAm), a form of vitamin B(3). A 5 mM concentration of NAm significantly inhibited the intracellular growth of Leishmania amastigotes and the NAD-dependent deacetylase activity carried by parasites overexpressing Leishmania major SIR2 (LmSIR2). However, the transgenic parasites were as susceptible as the wild-type parasites to NAm-induced cell growth arrest. Therefore, we conclude that NAm inhibits leishmanial growth and that overexpression of LmSIR2 does not overcome this inhibition. The mechanism of the inhibition is not defined but may include other in vivo targets. NAm may thus represent a new antileishmanial agent which could potentially be used in combination with other drugs during therapy.Entities:
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Year: 2005 PMID: 15673775 PMCID: PMC547366 DOI: 10.1128/AAC.49.2.808-812.2005
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191