Please use this identifier to cite or link to this item: https://observatorio.fm.usp.br/handle/OPI/33581
Title: Functional aspects, phenotypic heterogeneity, and tissue immune response of macrophages in infectious diseases
Authors: SOUSA, Jorge Rodrigues deVASCONCELOS, Pedro Fernando Da CostaQUARESMA, Juarez Antonio Simes
Citation: INFECTION AND DRUG RESISTANCE, v.12, p.2589-2611, 2019
Abstract: Macrophages are a functionally heterogeneous group of cells with specialized functions depending not only on their subgroup but also on the function of the organ or tissue in which the cells are located. The concept of macrophage phenotypic heterogeneity has been investigated since the 1980s, and more recent studies have identified a diverse spectrum of phenotypic subpopulations. Several types of macrophages play a central role in the response to infectious agents and, along with other components of the immune system, determine the clinical outcome of major infectious diseases. Here, we review the functions of various macrophage phenotypic subpopulations, the concept of macrophage polarization, and the influence of these cells on the evolution of infections. In addition, we emphasize their role in the immune response in vivo and in situ, as well as the molecular effectors and signaling mechanisms used by these cells. Furthermore, we highlight the mechanisms of immune evasion triggered by infectious agents to counter the actions of macrophages and their consequences. Our aim here is to provide an overview of the role of macrophages in the pathogenesis of critical transmissible diseases and discuss how elucidation of this relationship could enhance our understanding of the host-pathogen association in organ-specific immune responses.
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