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  • Title: Antileishmanial 2-substituted quinolines: in vitro behaviour towards biological components.
    Author: Desrivot J, Herrenknecht C, Ponchel G, Garbi N, Prina E, Fournet A, Bories C, Figadère B, Hocquemiller R, Loiseau PM.
    Journal: Biomed Pharmacother; 2007 Aug; 61(7):441-50. PubMed ID: 17459651.
    Abstract:
    Quinolines substituted on their carbon 2 have in vivo antileishmanial activity but some of them could not be detected in plasma when assayed for pharmacokinetic studies, suggesting a sequestration of the drugs by components of the blood compartment. The present study, performed on three quinolines (1, 2 and 3), showed strong affinity for two of them (2 and 3) with red blood cells (RBCs), whereas quinoline 1 did not react with them. This process was saturable, temperature dependant and positively correlated with the in vitro antileishmanial activity of the quinolines. In addition, a rapid and spontaneous reaction with thiol groups was demonstrated for unsaturated quinolines 2 and 3. The reactivity with RBCs could be part of the compounds targeting to the parasite. These results illustrate that derivatives of the quinoline series with similar antileishmanial in vivo activity have different behaviour in the blood compartment.
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