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Importance of the gp85 Laminin-G-like domain for the intracellular proliferation of T. cruzi

Grant number: 15/19654-6
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2015
Effective date (End): November 30, 2016
Field of knowledge:Biological Sciences - Biochemistry - Molecular Biology
Principal researcher:Ricardo Jose Giordano
Grantee:Veronica de Cássia Sardinha de Vasconcelos
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Trypanosoma cruzi, the ethological agent of Chagas disease, is a protozoan parasite which needs to invade cells in order to complete its life cycle. To successfully invade cells, T.cruzi must adhere to the host cell surface, enter and then proliferate inside the cell. The gp85/trans-sialidas e superfamily comprises a group of molecule which has been implicated in the cell infection process. Our group has shown that the interaction of these molecules through conserved motifs with cell host proteins, such as cytokeratin-18, found in on the surface of the host cell, is important for parasite cells adhesion and invasion. In this study, we will investigate the importance of this proteins, the peptide motifs and interaction with intracellular cytokeratin for T.cruzi proliferation.

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