MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors

Mucosal-associated invariant T (MAIT) cells are innate-like T cells present at considerable frequencies in human blood and barrier tissues, armed with an expanding array of effector functions in response to homeostatic perturbations. Analogous to other barrier immune cells, their phenotype and funct...

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Main Authors: Ali Amini, Declan Pang, Carl-Philipp Hackstein, Paul Klenerman
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-11-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2020.584521/full
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author Ali Amini
Ali Amini
Declan Pang
Carl-Philipp Hackstein
Carl-Philipp Hackstein
Paul Klenerman
Paul Klenerman
author_facet Ali Amini
Ali Amini
Declan Pang
Carl-Philipp Hackstein
Carl-Philipp Hackstein
Paul Klenerman
Paul Klenerman
author_sort Ali Amini
collection DOAJ
description Mucosal-associated invariant T (MAIT) cells are innate-like T cells present at considerable frequencies in human blood and barrier tissues, armed with an expanding array of effector functions in response to homeostatic perturbations. Analogous to other barrier immune cells, their phenotype and function is driven by crosstalk with host and dynamic environmental factors, most pertinently the microbiome. Given their distribution, they must function in diverse extracellular milieus. Tissue-specific and adapted functions of barrier immune cells are shaped by transcriptional programs and regulated through a blend of local cellular, inflammatory, physiological, and metabolic mediators unique to each microenvironment. This review compares the phenotype and function of MAIT cells with other barrier immune cells, highlighting potential areas for future exploration. Appreciation of MAIT cell biology within tissues is crucial to understanding their niche in health and disease.
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spelling doaj.art-d8b729c994f44eec88696026a57daf082022-12-21T22:08:44ZengFrontiers Media S.A.Frontiers in Immunology1664-32242020-11-011110.3389/fimmu.2020.584521584521MAIT Cells in Barrier Tissues: Lessons from Immediate NeighborsAli Amini0Ali Amini1Declan Pang2Carl-Philipp Hackstein3Carl-Philipp Hackstein4Paul Klenerman5Paul Klenerman6Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United KingdomPeter Medawar Building for Pathogen Research, University of Oxford, Oxford, United KingdomPeter Medawar Building for Pathogen Research, University of Oxford, Oxford, United KingdomTranslational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United KingdomPeter Medawar Building for Pathogen Research, University of Oxford, Oxford, United KingdomTranslational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United KingdomPeter Medawar Building for Pathogen Research, University of Oxford, Oxford, United KingdomMucosal-associated invariant T (MAIT) cells are innate-like T cells present at considerable frequencies in human blood and barrier tissues, armed with an expanding array of effector functions in response to homeostatic perturbations. Analogous to other barrier immune cells, their phenotype and function is driven by crosstalk with host and dynamic environmental factors, most pertinently the microbiome. Given their distribution, they must function in diverse extracellular milieus. Tissue-specific and adapted functions of barrier immune cells are shaped by transcriptional programs and regulated through a blend of local cellular, inflammatory, physiological, and metabolic mediators unique to each microenvironment. This review compares the phenotype and function of MAIT cells with other barrier immune cells, highlighting potential areas for future exploration. Appreciation of MAIT cell biology within tissues is crucial to understanding their niche in health and disease.https://www.frontiersin.org/articles/10.3389/fimmu.2020.584521/fullmucosal-associated invariant T cellsmicroenvironmentmicrobiomemetabolismtissue resident cellsmucosal immunology
spellingShingle Ali Amini
Ali Amini
Declan Pang
Carl-Philipp Hackstein
Carl-Philipp Hackstein
Paul Klenerman
Paul Klenerman
MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors
Frontiers in Immunology
mucosal-associated invariant T cells
microenvironment
microbiome
metabolism
tissue resident cells
mucosal immunology
title MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors
title_full MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors
title_fullStr MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors
title_full_unstemmed MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors
title_short MAIT Cells in Barrier Tissues: Lessons from Immediate Neighbors
title_sort mait cells in barrier tissues lessons from immediate neighbors
topic mucosal-associated invariant T cells
microenvironment
microbiome
metabolism
tissue resident cells
mucosal immunology
url https://www.frontiersin.org/articles/10.3389/fimmu.2020.584521/full
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