The anticancer drug tamoxifen is active against Trypanosoma cruzi in vitro but ineffective in the treatment of the acute phase of Chagas disease in mice
AUTOR(ES)
Miguel, Danilo Ciccone, Ferraz, Marcela Lencine, Alves, Rosana de Oliveira, Yokoyama-Yasunaka, Jenicer KU, Torrecilhas, Ana Claudia, Romanha, Alvaro José, Uliana, Silvia RB
FONTE
Memórias do Instituto Oswaldo Cruz
DATA DE PUBLICAÇÃO
2010-11
RESUMO
The activity of the antineoplastic drug tamoxifen was evaluated against Trypanosoma cruzi. In vitro activity was determined against epimastigote, trypomastigote and amastigote forms of CL14, Y and Y benznidazole resistant T. cruzi strains. Regardless of the strain used, the drug was active against all life-cycle stages of the parasite with a half maximal effective concentration ranging from 0.7-17.9 µM. Two experimental models of acute Chagas disease were used to evaluate the in vivo efficacy of treatment with tamoxifen. No differences in parasitemia and mortality were observed between control mock-treated and tamoxifen-treated mice.
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