Age-Related Changes in Thymic Central Tolerance.

Journal Article (Journal Article;Review)

Thymic epithelial cells (TECs) and hematopoietic antigen presenting cells (HAPCs) in the thymus microenvironment provide essential signals to self-reactive thymocytes that induce either negative selection or generation of regulatory T cells (Treg), both of which are required to establish and maintain central tolerance throughout life. HAPCs and TECs are comprised of multiple subsets that play distinct and overlapping roles in central tolerance. Changes that occur in the composition and function of TEC and HAPC subsets across the lifespan have potential consequences for central tolerance. In keeping with this possibility, there are age-associated changes in the cellular composition and function of T cells and Treg. This review summarizes changes in T cell and Treg function during the perinatal to adult transition and in the course of normal aging, and relates these changes to age-associated alterations in thymic HAPC and TEC subsets.

Full Text

Duke Authors

Cited Authors

  • Srinivasan, J; Lancaster, JN; Singarapu, N; Hale, LP; Ehrlich, LIR; Richie, ER

Published Date

  • 2021

Published In

Volume / Issue

  • 12 /

Start / End Page

  • 676236 -

PubMed ID

  • 33968086

Pubmed Central ID

  • PMC8100025

Electronic International Standard Serial Number (EISSN)

  • 1664-3224

Digital Object Identifier (DOI)

  • 10.3389/fimmu.2021.676236


  • eng

Conference Location

  • Switzerland