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• W2895989631 abstract "To identify new agents for the American Cutaneous Leishmaniasis treatment, a series of 2-aryl-quinazolin-4(3H)-ones were tested against L. mexicana, L. braziliensis and L. amazonensis parasites as potential inhibitor of folic metabolism pathway. In general, the L. braziliensis and L. mexicana promastigote parasites were more sensitive to the action of the quinazolinones than L. amazonensis. The most active derivatives showed low-micromolar EC50 ranging from 4 to 10 μM, being 1.3 to 4 fold more potent than glucantime reference drug. A complete in vitro evaluation on intracellular amastigote, axenic amastigote and murine peritoneal macrophage were performed for the most active derivatives. The compounds 2j, 2h, 2t and 2u displayed acceptable responses against intracellular amastigote compared to reference drug, excellent antileishmanial activities against axenic amastigote (LD50 ranging from 1 to 4 μM) and relative low toxicities on peritoneal macrophages. To validate the efficacy of these four derivatives, an in vitro evaluation was performed against an antimony-resistant amastigote strain; identifying to 2h and 2u as promising antileishmanial leads for further pharmacokinetics and in vivo studies. Experimental mechanism assays putted in evidences that the most active compounds act as folate inhibitor. A tentative molecular docking on pteridine reductase 1 (PTR1) enzyme showed that the most active quinazolinones 2j and 2t are located in almost identical place compared with methotrexate reference into active site." @default.
• W2895989631 created "2018-10-26" @default.
• W2895989631 creator A5006130749 @default.
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• W2895989631 date "2019-03-01" @default.
• W2895989631 modified "2023-10-05" @default.
• W2895989631 title "2-Aryl-quinazolin-4(3H)-ones as an inhibitor of leishmania folate pathway: In vitro biological evaluation, mechanism studies and molecular docking" @default.
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• W2895989631 doi "https://doi.org/10.1016/j.bioorg.2018.10.028" @default.
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• W2895989631 hasPublicationYear "2019" @default.
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