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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Anti-leishmanial and anti-trypanosomal activities of 1,4-dihydropyridines: In vitro evaluation and structure-activity relationship study

Texto completo
Autor(es):
Reimao, Juliana Q. [1] ; Scotti, Marcus T. [2] ; Tempone, Andre G. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Inst Adolfo Lutz Registro, Dept Parasitol, Lab Appl Toxinol Antiparasit Drugs, BR-01246902 Sao Paulo - Brazil
[2] Univ Fed Paraiba, Ctr Appl Sci & Educ, Rio Tinto, PB - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Bioorganic & Medicinal Chemistry; v. 18, n. 22, p. 8044-8053, NOV 15 2010.
Citações Web of Science: 41
Resumo

Leishmaniasis and Chagas' disease constitute a relevant health and socio-economic problem in Latin America, Africa, and Asia. The therapeutic interventions rely on inefficient and highly toxic drugs with systemic side effects in patients. Considering the multiple biological activities of the calcium channel blockers and the high versatility of 1,4-dihydropyridines, eight clinically used 1,4-dihydropyridines (azelnidipine, amlodipine, cilnidipine, lercanidipine, nicardipine, nifedipine, nimodipine and nitrendipine) were in vitro tested against Leishmania and Trypanosoma cruzi parasites, and their cytotoxicity was tested against mammalian cells. In addition, a QSAR study was performed in order to delineate further structural requirements for the anti-protozoan activity and to predict the biological potency of 1,4-dihydropyridines. The tested compounds were effective against Leishmania (L.) amazonensis, Leishmania (V.) braziliensis, Leishmania (L.) chagasi, and Leishmania (L.) major promastigotes, L. (L.) chagasi intracellular amastigotes and T. cruzi trypomastigotes with 50% inhibitory concentration (IC(50)) values in the range of 2.6-181 mu M. The QSAR provided useful information about the structural features of the anti-protozoan activities, including diphenylpropyl and diphenylmethylazetidin groups at position 4 of the 1,4-dihydropyridine ring, allowing the prediction of two novel potential anti-protozoan analogs. (C) 2010 Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 08/11434-3 - Combinações terapêuticas na leishmaniose visceral: o potencial anti-Leishmania de bloqueadores de canais de cálcio
Beneficiário:Juliana Quero Reimão Dalla Zanna
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 08/09260-7 - Combinações terapêuticas na leishmaniose visceral: o potencial anti-leishmania de bloqueadores de canais de cálcio e o uso de nanoformulações lipossomais
Beneficiário:André Gustavo Tempone Cardoso
Linha de fomento: Auxílio à Pesquisa - Regular