The acetyltransferase KAT7 is required for thymic epithelial cell expansion, expression of AIRE target genes, and thymic tolerance.
Journal
Science immunology
ISSN: 2470-9468
Titre abrégé: Sci Immunol
Pays: United States
ID NLM: 101688624
Informations de publication
Date de publication:
21 01 2022
21 01 2022
Historique:
entrez:
21
1
2022
pubmed:
22
1
2022
medline:
9
3
2022
Statut:
ppublish
Résumé
The autoimmune regulator (AIRE) induces the transcription of thousands of peripheral tissue genes (PTGs) in thymic epithelial cells (TECs) to mediate immunological tolerance. The chromatin state required for optimal AIRE function in TECs and how this state is induced remains unclear. We tested the role of the histone acetyltransferase, KAT7 (also known as HBO1 or MYST2), which is essential for acetylation of histone 3 lysine 14, in TEC differentiation, AIRE-mediated PTG expression, and thymic tolerance. We find that KAT7 is required for optimal expansion of medullary TEC and has a major role in the expression of AIRE-dependent PTGs, associated with enhanced chromatin accessibility at these gene loci in TECs. Mice with TEC-specific
Identifiants
pubmed: 35061506
doi: 10.1126/sciimmunol.abb6032
doi:
Substances chimiques
Transcription Factors
0
Histone Acetyltransferases
EC 2.3.1.48
Kat7 protein, mouse
EC 2.3.1.48
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM