» Articles » PMID: 17360567

Loss of Aire-dependent Thymic Expression of a Peripheral Tissue Antigen Renders It a Target of Autoimmunity

Overview
Specialty Science
Date 2007 Mar 16
PMID 17360567
Citations 44
Authors
Affiliations
Soon will be listed here.
Abstract

Both humans and mice with a mutation in the autoimmune regulator (aire) gene develop multiorgan autoimmune disease. Aire was shown to exert its critical function in medullary epithelial cells of the thymus by promoting ectopic expression of peripheral tissue antigens. It was hypothesized that the widespread autoimmunity of Aire-deficient individuals reflects a lack of tolerance induction to the repertoire of peripheral tissue antigens expressed in the thymus of normal individuals. Here, we substantiate this hypothesis by identifying Mucin 6 as a stomach-specific antigen targeted by autoantibodies in gastritis-prone mice lacking thymic expression of aire and demonstrate that transcription of the Mucin 6 gene in thymic medullary epithelial cells is indeed Aire-dependent.

Citing Articles

Thymic Mimetic Cells: Ontogeny as Immunology.

Michelson D, Mathis D Annu Rev Cell Dev Biol. 2024; 40(1):283-300.

PMID: 38608315 PMC: 11446667. DOI: 10.1146/annurev-cellbio-112122-023316.


Hnf4 activates mimetic-cell enhancers to recapitulate gut and liver development within the thymus.

Michelson D, Zuo C, Verzi M, Benoist C, Mathis D J Exp Med. 2023; 220(10).

PMID: 37399024 PMC: 10318407. DOI: 10.1084/jem.20230461.


Thymic mimetic cells: tolerogenic masqueraders.

Michelson D, Mathis D Trends Immunol. 2022; 43(10):782-791.

PMID: 36008259 PMC: 9509455. DOI: 10.1016/j.it.2022.07.010.


Transcriptomic diversity in human medullary thymic epithelial cells.

Carter J, Stromich L, Peacey M, Chapin S, Velten L, Steinmetz L Nat Commun. 2022; 13(1):4296.

PMID: 35918316 PMC: 9345899. DOI: 10.1038/s41467-022-31750-1.


Extrathymic expression of Aire controls the induction of effective T17 cell-mediated immune response to Candida albicans.

Dobes J, Ben-Nun O, Binyamin A, Stoler-Barak L, Oftedal B, Goldfarb Y Nat Immunol. 2022; 23(7):1098-1108.

PMID: 35761088 DOI: 10.1038/s41590-022-01247-6.


References
1.
Degermann S, Surh C, Glimcher L, Sprent J, Lo D . B7 expression on thymic medullary epithelium correlates with epithelium-mediated deletion of V beta 5+ thymocytes. J Immunol. 1994; 152(7):3254-63. View

2.
Sospedra M, Ferrer-Francesch X, Dominguez O, Juan M, Pujol-Borrell R . Transcription of a broad range of self-antigens in human thymus suggests a role for central mechanisms in tolerance toward peripheral antigens. J Immunol. 1998; 161(11):5918-29. View

3.
Liston A, Lesage S, Wilson J, Peltonen L, Goodnow C . Aire regulates negative selection of organ-specific T cells. Nat Immunol. 2003; 4(4):350-4. DOI: 10.1038/ni906. View

4.
Palmer E . Negative selection--clearing out the bad apples from the T-cell repertoire. Nat Rev Immunol. 2003; 3(5):383-91. DOI: 10.1038/nri1085. View

5.
van Driel I, Read S, Zwar T, Gleeson P . Shaping the T cell repertoire to a bona fide autoantigen: lessons from autoimmune gastritis. Curr Opin Immunol. 2005; 17(6):570-6. DOI: 10.1016/j.coi.2005.09.016. View