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Autophagy in placental malaria: effects and mechanisms

Grant number: 13/16417-8
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): October 01, 2013
Effective date (End): September 30, 2016
Field of knowledge:Biological Sciences - Parasitology
Principal Investigator:Cláudio Romero Farias Marinho
Grantee:Flávia Afonso Lima
Host Institution: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Malaria in pregnancy is a major public health problem in countries where the disease is endemic, causing maternal and infant morbidity and mortality. It remains unclear why pregnant women are more susceptible to malaria. However, it is known that the placenta provides a favorable environment to the development of certain parasite subpopulations, triggering an intense inflammatory infiltrate which is associated with abortions, intrauterine growth retardation, premature births and low birth weight. Autophagy is an essential process for cell survival during stress, such as infections or cell exposure to microbial products. It also plays a role in the trophoblast response to stress agents in normal pregnancy, allowing these cells to adapt to a variety of insults usually found in pregnant women. Certain signaling molecules related to the immune system can regulate autophagy. Although in recent years many studies have defined the clinical manifestations of malaria during pregnancy, the cellular and molecular mechanisms associated with the inflammatory process are not yet fully understood. In this project we intend to evaluate the role of autophagy in the pathogenesis of placental malaria. This study will not only make an important contribution to a better understanding of placental malaria, but could also enable new studies directed to the development of new diagnostic methods and gestational malaria treatment.

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Scientific publications (5)
(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)
DOMBROWSKI, JAMILLE GREGORIO; DE SOUZA, RODRIGO MEDEIROS; LIMA, FLAVIA AFONSO; BANDEIRA, CARLA LETICIA; MURILLO, OSCAR; COSTA, DOUGLAS DE SOUSA; MACHADO PEIXOTO, ERIKA PAULA; CUNHA, MARIELTON DOS PASSOS; DE ANDRADE ZANOTTO, PAOLO MARINHO; BEVILACQUA, ESTELA; et al. Association of Malaria Infection During Pregnancy With Head Circumference of Newborns in the Brazilian Amazon. JAMA NETWORK OPEN, v. 2, n. 5, . (14/17766-9, 18/20468-0, 12/04755-3, 13/21728-2, 14/20451-0, 14/09964-5, 15/06106-0, 13/00981-1, 16/08204-2, 13/16417-8, 09/53889-0)
LIMA, FLAVIA AFONSO; BARATEIRO, ANDRE; DOMBROWSKI, JAMILLE GREGORIO; DE SOUZA, RODRIGO MEDEIROS; COSTA, DOUGLAS DE SOUSA; MURILLO, OSCAR; EPIPHANIO, SABRINA; GONCALVES, LIGIA ANTUNES; FARIAS MARINHO, CLAUDIO ROMERO. Plasmodium falciparum infection dysregulates placental autophagy. PLoS One, v. 14, n. 12, . (17/03939-7, 17/05782-8, 13/16417-8, 12/04755-3, 16/07030-0, 15/06106-0, 13/00981-1, 18/20468-0)
BARBOZA, RENATO; HASENKAMP, LUTERO; BARATEIRO, ANDRE; MURILLO, OSCAR; MACHADO PEIXOTO, ERIKA PAULA; LIMA, FLAVIA AFONSO; REIS, ARAMYS SILVA; GONCALVES, LIGIA ANTUNES; EPIPHANIO, SABRINA; MARINHO, CLAUDIO R. F.. Fetal-Derived MyD88 Signaling Contributes to Poor Pregnancy Outcomes During Gestational Malaria. FRONTIERS IN MICROBIOLOGY, v. 10, . (11/17880-8, 15/10892-1, 09/53256-7, 12/14715-9, 16/07030-0, 15/06106-0, 17/03939-7, 11/19048-8, 13/16417-8, 09/53889-0)
REIS, ARAMYS S.; BARBOZA, RENATO; MURILLO, OSCAR; BARATEIRO, ANDRE; PEIXOTO, ERIKA P. M.; LIMA, FLAVIA A.; GOMES, VINICIUS M.; DOMBROWSKI, JAMILLE G.; LEAL, VINICIUS N. C.; ARAUJO, FRANCIELE; et al. Inflammasome activation and IL-1 signaling during placental malaria induce poor pregnancy outcomes. SCIENCE ADVANCES, v. 6, n. 10, . (14/09964-5, 15/23395-6, 14/20451-0, 17/03939-7, 11/19048-8, 17/05782-8, 13/16417-8, 16/07030-0, 12/16525-2, 12/04755-3, 15/50650-7, 18/20468-0, 13/00981-1, 11/17880-8, 15/06106-0)
BARBOZA, RENATO; LIMA, FLAVIA AFONSO; REIS, ARAMYS SILVA; MURILLO, OSCAR JAVIER; MACHADO PEIXOTO, ERIKA PAULA; BANDEIRA, CARLA LETICIA; FOTORAN, WESLEY LUZETTI; SARDINHA, LUIS ROBERTO; WUNDERLICH, GERHARD; BEVILACQUA, ESTELA; et al. TLR4-Mediated Placental Pathology and Pregnancy Outcome in Experimental Malaria. SCIENTIFIC REPORTS, v. 7, . (12/16525-2, 11/17880-8, 14/20451-0, 14/09964-5, 15/06106-0, 13/00981-1, 11/19048-8, 13/16417-8, 09/53889-0)

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