| Grant number: | 17/22504-1 |
| Support Opportunities: | Regular Research Grants |
| Start date: | March 01, 2018 |
| End date: | February 29, 2020 |
| Field of knowledge: | Biological Sciences - Immunology - Cellular Immunology |
| Principal Investigator: | Jean Pierre Schatzmann Peron |
| Grantee: | Jean Pierre Schatzmann Peron |
| Host Institution: | Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| City of the host institution: | São Paulo |
Abstract
The Zika virus (ZIKV) emerges as a global health problem and demands efforts of the scientific community to understand the underlying mechanisms involved in the host cell infection. The ZIKV is part of the flavivirus genus, such as Dengue virus, whose cellular invasion mechanism has been elucidated in the literature. It is clear the involvement of Axl receptor Tyro3 and Mer (Family TAM) and its ligands, Gas6 and Protein S, during infection of Dengue virus, a phosphatidylserine-dependent phagocytosis mechanism. Studies conducted by our group showed a possible link between increased expression of TAM receptors and the infection of ZIKV, as well as the susceptibility of SJL mouse strain to ZIKV infection. However, further studies are needed to prove the role of TAM receptors in ZIKV infection and its relationship with susceptibility and resistance of SJL and C57BL/6 strains, respectively. Thus, this study aims to assess the relevance of TAM receptors in ZIKV infection in different individuals through comparisons between mouse strains, and perhaps unravel the basis of the pathogenesis of microcephaly caused by ZIKV in SJL mice. For this purpose, we will perform in vitro and in vivo. SJL mice will be infected during gestation in the presence or not of Gas6 or RU428, an Axl quinase blocker. We will focus on the role of Axl on the vertical transmission, as well as in the pathogenesis of the central nervous system lesions. The results obtained will not only point to the relevance ofr TAM receptors on the pathogenesis of the disease, but also as its potential as a resistance or susceptibility marker (AU)
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