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Grant number: 11/21970-2
Support Opportunities:Scholarships in Brazil - Post-Doctorate
Effective date (Start): March 01, 2012
Effective date (End): February 28, 2015
Field of knowledge:Biological Sciences - Parasitology - Protozoology of Parasites
Principal Investigator:Silvia Reni Bortolin Uliana
Grantee:Juliana Quero Reimão Dalla Zanna
Host Institution: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Leishmaniasis is endemic in 98 countries, with about 12 million people infected worldwide. Visceral leishmaniasis (VL), given its high incidence and mortality, is considered by the World Health Organization as one of the most important diseases nowadays. Leishmaniasis treatment relies on a limited therapeutic arsenal, with toxic drugs administered by the parenteral route such as pentavalent antimonials, amphotericin B and pentamidine. The toxicity, high cost and route of administration of these drugs, coupled with parasite resistance to antimonials in some regions, indicate that the discovery of new alternatives for leishmaniasis treatment is essential, as new drugs or new chemotherapy regimens using drug combinations. The leishmanicidal activity of tamoxifen was recently described in experimental models of leishmaniasis. Therefore, the aim of this project is to characterize the antileishmanial activity of the Selective Estrogen Receptor Modulators (SERMs) raloxifene and tamoxifen, alone or in combinations of drugs on LV models. For that purpose, a model of LV using luminescent parasites will be implemented. In parallel, this study focuses on understanding the leishmanicidal mechanism of action of these compounds. Through this project we are looking to identify new drug candidates or combination therapy schemes for VL treatment. We believe that data obtained in this project might provide the basis for a clinical trial design, given that tamoxifen and raloxifene have well established clinical safety profiles.

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
TRINCONI, CRISTIANA T.; REIMAO, JULIANA Q.; BONANO, I, VIVIAN; ESPADA, CAROLINE R.; MIGUEL, DANILO C.; YOKOYAMA-YASUNAKA, JENICER K. U.; ULIANA, SILVIA R. B.. Topical tamoxifen in the therapy of cutaneous leishmaniasis. Parasitology, v. 145, n. 4, SI, p. 490-496, . (15/05130-5, 11/18858-6, 15/09080-2, 11/20484-7, 11/21970-2)
REIMAO, JULIANA QUERO; MESQUITA, JULIANA TONINI; FERREIRA, DAIANE DIAS; TEMPONE, ANDRE GUSTAVO. Investigation of Calcium Channel Blockers as Antiprotozoal Agents and Their Interference in the Metabolism of Leishmania (L.) infantum. Evidence-based Complementary and Alternative Medicine, . (08/11434-3, 11/21970-2, 12/18756-1)
REIMAO, JULIANA Q.; TRINCONI, CRISTIANA T.; YOKOYAMA-YASUNAKA, JENICER K.; MIGUEL, DANILO C.; KALIL, SANDRA P.; ULIANA, SILVIA R. B.. Parasite burden in Leishmania (Leishmania) amazonensis-infected mice: Validation of luciferase as a quantitative tool. Journal of Microbiological Methods, v. 93, n. 2, p. 95-101, . (11/20484-7, 11/21970-2, 11/18858-6)
REIMAO, JULIANA Q.; MIGUEL, DANILO C.; TANIWAKI, NOEMI N.; TRINCONI, CRISTIANA T.; YOKOYAMA-YASUNAKA, JENICER K. U.; ULIANA, SILVIA R. B.. Antileishmanial Activity of the Estrogen Receptor Modulator Raloxifene. PLoS Neglected Tropical Diseases, v. 8, n. 5, . (11/20484-7, 11/21970-2)
REIMAO, JULIANA Q.; OLIVEIRA, JORDANA C.; TRINCONI, CRISTIANA T.; COTRIM, PAULO C.; COELHO, ADRIANO C.; ULIANA, SILVIA R. B.. Generation of Luciferase-Expressing Leishmania infantum chagasi and Assessment of Miltefosine Efficacy in Infected Hamsters through Bioimaging. PLoS Neglected Tropical Diseases, v. 9, n. 2, . (11/20484-7, 13/01613-6, 11/18858-6, 11/21970-2)
TRINCONI, CRISTIANA T.; REIMAO, JULIANA Q.; COELHO, ADRIANO C.; ULIANA, SILVIA R. B.. Efficacy of tamoxifen and miltefosine combined therapy for cutaneous leishmaniasis in the murine model of infection with Leishmania amazonensis. Journal of Antimicrobial Chemotherapy, v. 71, n. 5, p. 1314-1322, . (11/18858-6, 15/09080-2, 11/20484-7, 12/14629-5, 11/21970-2)

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