Generation and Regeneration of Thymic Epithelial Cells

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Generation and Regeneration of Thymic Epithelial Cells. / Alawam, Abdullah S; Anderson, Graham; Lucas, Beth.

In: Frontiers in immunology, Vol. 11, 858, 07.05.2020.

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@article{ba2b31c13b9a4e37926406273ff4a78e,
title = "Generation and Regeneration of Thymic Epithelial Cells",
abstract = "The thymus is unique in its ability to support the maturation of phenotypically and functionally distinct T cell sub-lineages. Through its combined production of MHC-restricted conventional CD4+ and CD8+, and Foxp3+ regulatory T cells, as well as non-conventional CD1d-restricted iNKT cells and invariant γδT cells, the thymus represents an important orchestrator of immune system development and control. It is now clear that thymus function is largely determined by the availability of stromal microenvironments. These specialized areas emerge during thymus organogenesis and are maintained throughout life. They are formed from both epithelial and mesenchymal components, and collectively they support a stepwise program of thymocyte development. Of these stromal cells, cortical, and medullary thymic epithelial cells represent functional components of thymic microenvironments in both the cortex and medulla. Importantly, a key feature of thymus function is that levels of T cell production are not constant throughout life. Here, multiple physiological factors including aging, stress and pregnancy can have either short- or long-term detrimental impact on rates of thymus function. Here, we summarize our current understanding of the development and function of thymic epithelial cells, and relate this to strategies to protect and/or restore thymic epithelial cell function for therapeutic benefit.",
author = "Alawam, {Abdullah S} and Graham Anderson and Beth Lucas",
note = "Copyright {\textcopyright} 2020 Alawam, Anderson and Lucas.",
year = "2020",
month = may,
day = "7",
doi = "10.3389/fimmu.2020.00858",
language = "English",
volume = "11",
journal = "Frontiers in immunology",
issn = "1664-3224",
publisher = "Frontiers",

}

RIS

TY - JOUR

T1 - Generation and Regeneration of Thymic Epithelial Cells

AU - Alawam, Abdullah S

AU - Anderson, Graham

AU - Lucas, Beth

N1 - Copyright © 2020 Alawam, Anderson and Lucas.

PY - 2020/5/7

Y1 - 2020/5/7

N2 - The thymus is unique in its ability to support the maturation of phenotypically and functionally distinct T cell sub-lineages. Through its combined production of MHC-restricted conventional CD4+ and CD8+, and Foxp3+ regulatory T cells, as well as non-conventional CD1d-restricted iNKT cells and invariant γδT cells, the thymus represents an important orchestrator of immune system development and control. It is now clear that thymus function is largely determined by the availability of stromal microenvironments. These specialized areas emerge during thymus organogenesis and are maintained throughout life. They are formed from both epithelial and mesenchymal components, and collectively they support a stepwise program of thymocyte development. Of these stromal cells, cortical, and medullary thymic epithelial cells represent functional components of thymic microenvironments in both the cortex and medulla. Importantly, a key feature of thymus function is that levels of T cell production are not constant throughout life. Here, multiple physiological factors including aging, stress and pregnancy can have either short- or long-term detrimental impact on rates of thymus function. Here, we summarize our current understanding of the development and function of thymic epithelial cells, and relate this to strategies to protect and/or restore thymic epithelial cell function for therapeutic benefit.

AB - The thymus is unique in its ability to support the maturation of phenotypically and functionally distinct T cell sub-lineages. Through its combined production of MHC-restricted conventional CD4+ and CD8+, and Foxp3+ regulatory T cells, as well as non-conventional CD1d-restricted iNKT cells and invariant γδT cells, the thymus represents an important orchestrator of immune system development and control. It is now clear that thymus function is largely determined by the availability of stromal microenvironments. These specialized areas emerge during thymus organogenesis and are maintained throughout life. They are formed from both epithelial and mesenchymal components, and collectively they support a stepwise program of thymocyte development. Of these stromal cells, cortical, and medullary thymic epithelial cells represent functional components of thymic microenvironments in both the cortex and medulla. Importantly, a key feature of thymus function is that levels of T cell production are not constant throughout life. Here, multiple physiological factors including aging, stress and pregnancy can have either short- or long-term detrimental impact on rates of thymus function. Here, we summarize our current understanding of the development and function of thymic epithelial cells, and relate this to strategies to protect and/or restore thymic epithelial cell function for therapeutic benefit.

U2 - 10.3389/fimmu.2020.00858

DO - 10.3389/fimmu.2020.00858

M3 - Review article

C2 - 32457758

VL - 11

JO - Frontiers in immunology

JF - Frontiers in immunology

SN - 1664-3224

M1 - 858

ER -