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Host resistance during infection with Trypanosoma cruzi, and other protozoans, is dependent on a balanced immune response. Robust immunity against these pathogens requires of the concerted action of many innate and adaptive cell populations including macrophages, neutrophils, dendritic cells, CD4+, and CD8+ T cells and B cells among others. Indeed, during most protozoan infections only a balanced production of inflammatory (TH1) and anti-inflammatory (TH2/regulatory) cytokines will allow the control of parasite spreading without compromising host tissue integrity. The description of TH17 cells, a novel effector helper T cell lineage that produced IL-17 as signature cytokine, prompted the revision of our knowledge about the mechanisms that mediate protection and immunopathology during protozoan infections. In this manuscript we discuss the general features of IL-17 mediated immune responses as well as the cellular sources, effector mechanisms and overall role of IL-17 in the immune response to T. cruzi and other protozoan infections. Copyright © 2020 Elsevier B.V. All rights reserved.


María Carolina Amezcua Vesely, Constanza Rodríguez, Adriana Gruppi, Eva Virginia Acosta Rodríguez. Interleukin-17 mediated immunity during infections with Trypanosoma cruzi and other protozoans. Biochimica et biophysica acta. Molecular basis of disease. 2020 May 01;1866(5):165706

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PMID: 31987839

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