1. Evaluation of P2X7 receptor expression in peripheral lymphocytes and immune profile from patients with indeterminate form of Chagas disease.
- Author
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Souza VD, Dos Santos JT, Cabral FL, Barbisan F, Azevedo MI, Dias Carli LF, de Avila Botton S, Dos Santos Jaques JA, and Rosa Leal DB
- Subjects
- Case-Control Studies, Chagas Disease diagnosis, Chagas Disease parasitology, Cytokines metabolism, Humans, Immunomodulation, Inflammation Mediators metabolism, Male, Middle Aged, Receptors, Purinergic P2X7 metabolism, Chagas Disease genetics, Chagas Disease immunology, Gene Expression, Immunity, Cellular, Lymphocytes immunology, Lymphocytes metabolism, Receptors, Purinergic P2X7 genetics
- Abstract
Chagas disease (CD) is caused by Trypanosoma cruzi, an intracellular protozoan which is a potent stimulator of cell-mediated immunity. In the indeterminate form of CD (IFCD) a modulation between pro- and anti-inflammatory responses establishes a host-parasite adaptation. It was previously demonstrated that purinergic ecto-enzymes regulates extracellular ATP and adenosine levels, influencing immune and inflammatory processes during IFCD. In inflammatory sites ATP, as well as its degradation product, adenosine, function as signaling molecules and immunoregulators through the activation of purinergic receptors. In this work, it was analyzed the gene and protein expression of P2X7 purinergic receptor in peripheral lymphocytes and serum immunoregulatory cytokines from IFCD patients. Gene and protein expression of P2X7 receptor (P2X7R), and serum cytokines (IL-2, IL-10, IL-17 and IFN-γ) were unaltered. However, IFCD group showed significantly higher IL-4 and IL-6 levels while TNF-α was significantly decreased. These results indicate that imune profile of IFCD patients displays anti-inflammatory characteristics, consistent with the establishment of an immunomodulatory response. Further study about the molecular knowledge of P2X7R in IFCD is useful to clarify the participation of purinergic system in the regulatory mechanism which avoid the progression of CD., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2017
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