A recombinant protein based on Trypanosoma cruzi P21 enhances phagocytosis.

Autor: Adele A Rodrigues, Tatiana M Clemente, Marlus A Dos Santos, Fabrício C Machado, Rafael G B Gomes, Heline Hellen T Moreira, Mário C Cruz, Paula C Brígido, Paulo C F Dos Santos, Flávia A Martins, Diana Bahia, Juliana T Maricato, Luiz M R Janini, Eduardo H Reboredo, Renato A Mortara, Claudio V da Silva
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: PLoS ONE, Vol 7, Iss 12, p e51384 (2012)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0051384
Popis: BACKGROUND: P21 is a secreted protein expressed in all developmental stages of Trypanosoma cruzi. The aim of this study was to determine the effect of the recombinant protein based on P21 (P21-His(6)) on inflammatory macrophages during phagocytosis. FINDINGS: Our results showed that P21-His(6) acts as a phagocytosis inducer by binding to CXCR4 chemokine receptor and activating actin polymerization in a way dependent onthe PI3-kinase signaling pathway. CONCLUSIONS: Thus, our results shed light on the notion that native P21 is a component related to T. cruzi evasion from the immune response and that CXCR4 may be involved in phagocytosis. P21-His(6) represents an important experimental control tool to study phagocytosis signaling pathways of different intracellular parasites and particles.
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