On the origin of the functional versatility of macrophages

Macrophages represent the most functionally versatile cells in the animal body. In addition to recognizing and destroying pathogens, macrophages remove senescent and exhausted cells, promote wound healing, and govern tissue and metabolic homeostasis. In addition, many specialized populations of tiss...

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Main Authors: Adam Bajgar, Gabriela Krejčová
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-02-01
Series:Frontiers in Physiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphys.2023.1128984/full
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author Adam Bajgar
Adam Bajgar
Gabriela Krejčová
Gabriela Krejčová
author_facet Adam Bajgar
Adam Bajgar
Gabriela Krejčová
Gabriela Krejčová
author_sort Adam Bajgar
collection DOAJ
description Macrophages represent the most functionally versatile cells in the animal body. In addition to recognizing and destroying pathogens, macrophages remove senescent and exhausted cells, promote wound healing, and govern tissue and metabolic homeostasis. In addition, many specialized populations of tissue-resident macrophages exhibit highly specialized functions essential for the function of specific organs. Sometimes, however, macrophages cease to perform their protective function and their seemingly incomprehensible response to certain stimuli leads to pathology. In this study, we address the question of the origin of the functional versatility of macrophages. To this end, we have searched for the evolutionary origin of macrophages themselves and for the emergence of their characteristic properties. We hypothesize that many of the characteristic features of proinflammatory macrophages evolved in the unicellular ancestors of animals, and that the functional repertoire of macrophage-like amoebocytes further expanded with the evolution of multicellularity and the increasing complexity of tissues and organ systems. We suggest that the entire repertoire of macrophage functions evolved by repurposing and diversification of basic functions that evolved early in the evolution of metazoans under conditions barely comparable to that in tissues of multicellular organisms. We believe that by applying this perspective, we may find an explanation for the otherwise counterintuitive behavior of macrophages in many human pathologies.
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spelling doaj.art-f004beacc4b54d3da7585ba6644aed852023-02-23T12:35:09ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2023-02-011410.3389/fphys.2023.11289841128984On the origin of the functional versatility of macrophagesAdam Bajgar0Adam Bajgar1Gabriela Krejčová2Gabriela Krejčová3Faculty of Science, Department of Molecular Biology and Genetics, University of South Bohemia, Ceske Budejovice, CzechiaBiology Centre, Institute of Entomology, Academy of Sciences, Ceske Budejovice, CzechiaFaculty of Science, Department of Molecular Biology and Genetics, University of South Bohemia, Ceske Budejovice, CzechiaBiology Centre, Institute of Entomology, Academy of Sciences, Ceske Budejovice, CzechiaMacrophages represent the most functionally versatile cells in the animal body. In addition to recognizing and destroying pathogens, macrophages remove senescent and exhausted cells, promote wound healing, and govern tissue and metabolic homeostasis. In addition, many specialized populations of tissue-resident macrophages exhibit highly specialized functions essential for the function of specific organs. Sometimes, however, macrophages cease to perform their protective function and their seemingly incomprehensible response to certain stimuli leads to pathology. In this study, we address the question of the origin of the functional versatility of macrophages. To this end, we have searched for the evolutionary origin of macrophages themselves and for the emergence of their characteristic properties. We hypothesize that many of the characteristic features of proinflammatory macrophages evolved in the unicellular ancestors of animals, and that the functional repertoire of macrophage-like amoebocytes further expanded with the evolution of multicellularity and the increasing complexity of tissues and organ systems. We suggest that the entire repertoire of macrophage functions evolved by repurposing and diversification of basic functions that evolved early in the evolution of metazoans under conditions barely comparable to that in tissues of multicellular organisms. We believe that by applying this perspective, we may find an explanation for the otherwise counterintuitive behavior of macrophages in many human pathologies.https://www.frontiersin.org/articles/10.3389/fphys.2023.1128984/fullDictyosteliumacanthamoebaDrosophilaplasmatocytesarchaeocytesPorifera
spellingShingle Adam Bajgar
Adam Bajgar
Gabriela Krejčová
Gabriela Krejčová
On the origin of the functional versatility of macrophages
Frontiers in Physiology
Dictyostelium
acanthamoeba
Drosophila
plasmatocytes
archaeocytes
Porifera
title On the origin of the functional versatility of macrophages
title_full On the origin of the functional versatility of macrophages
title_fullStr On the origin of the functional versatility of macrophages
title_full_unstemmed On the origin of the functional versatility of macrophages
title_short On the origin of the functional versatility of macrophages
title_sort on the origin of the functional versatility of macrophages
topic Dictyostelium
acanthamoeba
Drosophila
plasmatocytes
archaeocytes
Porifera
url https://www.frontiersin.org/articles/10.3389/fphys.2023.1128984/full
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