Der Transkriptionsfaktor T-bet wird durch IL-15 und Agonistenselektion induziert und kontrolliert die Entwicklung von CD8αα+ intraepithelialen Lymphozyten : = Der Transkriptionsfaktor T-bet wird durch IL-15 und Agonistenselektion induziert und kontrolliert die Entwicklung von CD8[alpha][alpha]+ intraepithelialen Lymphozyten

Abstract: CD8aa+ intraepithelial lymphocytes (IELs) are instru- mental in maintaining the epithelial barrier in the in- testine. Similar to natural killer cells and other innate lymphoid cells, CD8aa+ IELs constitutively express the T-box transcription factor T-bet. However, the precise role of T-bet for the differentiation or function of IELs is unknown. Here we show that mice geneti- cally deficient for T-bet lacked both TCRab+ and TCRgd+ CD8aa+ IELs and thus are more susceptible to chemically induced colitis. Although T-bet was induced in thymic IEL precursors (IELPs) as a result of agonist selection and interleukin-15 (IL-15) recep- tor signaling, it was dispensable for the generation of IELPs. Subsequently, T-bet was required for the IL-15-dependent activation, differentiation, and expansion of IELPs in the periphery. Our study re- veals a function of T-bet as a central transcriptional regulator linking agonist selection and IL-15 signaling with the emergence of CD8aa+ IELs

Alternative title
Der Transkriptionsfaktor T-bet wird durch IL-15 und Agonistenselektion induziert und kontrolliert die Entwicklung von CD8[alpha][alpha]+ intraepithelialen Lymphozyten
Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Deutsch
Notes
Universität Freiburg, Dissertation, 2022

Keyword
T-Lymphozyt
Transkriptionsfaktor
Interleukin 15

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2022
Creator

DOI
10.1016/j.immuni.2014.06.018
URN
urn:nbn:de:bsz:25-freidok-2279604
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
25.03.2025, 1:42 PM CET

Data provider

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Time of origin

  • 2022

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