A Recombinant Protein Based on Trypanosoma cruzi P21 Enhances Phagocytosis

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Abstract

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-His6) on inflammatory macrophages during phagocytosis. Findings: Our results showed that P21-His6 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-His6 represents an important experimental control tool to study phagocytosis signaling pathways of different intracellular parasites and particles. © 2012 Rodrigues et al.

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Rodrigues, A. A., Clemente, T. M., dos Santos, M. A., Machado, F. C., Gomes, R. G. B., Moreira, H. H. T., … da Silva, C. V. (2012). A Recombinant Protein Based on Trypanosoma cruzi P21 Enhances Phagocytosis. PLoS ONE, 7(12). https://doi.org/10.1371/journal.pone.0051384

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