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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Leishmania (Leishmania) amazonensis Infection in Mice Treated With FTY720

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Author(s):
Lopes, C. T. [1] ; de Paula, D. M. B. [2] ; Cury, P. M. [3] ; Valero-Lapchik, V. B. [2] ; Bueno, V. [1]
Total Authors: 5
Affiliation:
[1] Univ Fed Sao Paulo, Dept Med, Div Nephrol, BR-04023900 Sao Paulo - Brazil
[2] Univ Fed Sao Paulo, Inst Pharmacol, BR-04023900 Sao Paulo - Brazil
[3] Med Sch Sao Jose do Rio Preto FAMERP, Dept Pathol, Sao Jose Do Rio Preto - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Transplantation Proceedings; v. 42, n. 2, p. 578-581, MAR 2010.
Web of Science Citations: 2
Abstract

In transplantation, parasite diseases are transmitted from the donor, or appear as de novo infections, or activate from a dormant insource as a consequence of immunosuppression. Clinical findings have shown that an intact immune system is crucial to prevent recurrence of Leishmania infection. We used BALB/c and C57BL/6 mice to evaluate the role of FTY720 in leishmaniasis. Mice inoculated with Leishmania (Leishmania) amazonensis were followed over 71/2 weeks for foot thickness measurements after initiation of FTY720 treatment. After 10 days of treatment, spleen, blood, and the foot were harvested for evaluation. BALB/c showed greater evident foot thickness than C57BL/6 mice. Oral treatment with FTY720 (1 mg/kg/d) over 10 days produced the same outcome. Increases in CD4(+) and CD8(+) T cells were observed after infection; FTY720 treatment was associated with a decrease in CD4(+) T cells only in BALB/c mice, whereas CD8(+) T cells were decreased in both mice strains. CD11b(+) expression decreased after infection with a discrete increase after FTY720 treatment. Lymphopenia was observed among all FTY720-treated mice. In conclusion, we observed that FTY720 produced no worse an outcome as monotherapy in established infections with L (L) amazonensis. (AU)