Linked Life Data

14736239

Source:http://linkedlifedata.com/resource/pubmed/id/14736239

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pubmed-article:14736239pubmed:abstractTextA series of dihydro-beta-agarofuran sesquiterpenes isolated from the leaves of Maytenus cuzcoina (1-10) or semisynthetic derivatives (11-30) have been tested on a multidrug-resistant Leishmania tropica line overexpressing a P-glycoprotein-like transporter to determine their ability to revert the resistance phenotype and to modulate intracellular drug accumulation. Almost all natural compounds showed potent reversal activity with different degrees of selectivity. Compounds 2, 7, and 8 are the most effective reversal agents tested against the multidrug resistance phenotype of Leishmania. Three-dimensional quantitative structure-activity relationships using the comparative molecular similarity indices analysis (CoMSIA) were employed to characterize the steric (contribution of 5.4%), electrostatic (58.9%), lipophilic (10.0%), and hydrogen-bond-donor (13.3%) and -acceptor (7.5%) requirements of these sesquiterpenes as modulators at the P-glycoprotein-like transporter. The most salient features of these requirements are the H-bond interaction between the substituents at the C-2 and C-6 positions with the receptor.lld:pubmed
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pubmed-article:14736239pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:14736239pubmed:articleTitleSAR studies of dihydro-beta-agarofuran sesquiterpenes as inhibitors of the multidrug-resistance phenotype in a Leishmania tropica line overexpressing a P-glycoprotein-like transporter.lld:pubmed
pubmed-article:14736239pubmed:affiliationInstituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas, c/Ventanilla 11, 18001 Granada, Spain.lld:pubmed
pubmed-article:14736239pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:14736239pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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