Journal
IMMUNOLOGY LETTERS
Volume 106, Issue 2, Pages 172-179Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.imlet.2006.06.006
Keywords
AIRE; autoimmunity; hypomethylation; expression analysis
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Defects in the autoimmune regulator (AIRE) gene cause the monogenic autoimmune disease autoimmune polyendocrinopathy syndrome type I (APS-1), which is characterized by a loss of self-tolerance to multiple organs. In concordance with its role in immune tolerance, AIRE is strongly expressed in medullary thymic epithelial cells (mTECs). Data on mechanisms controlling AIRE activation and the expression of this gene in other tissues are fragmentary and controversial. We report here AIRE mRNA expression profiling of a large set of normal human tissues and cells, tumor specimen and methylation deficient cell lines. On this broad data basis we found that AIRE mRNA expression is confined to mTECs in thymus and to lymph node tissue and that DNA hypomethylation contributes to transcriptional control of this gene. (c) 2006 Elsevier B.V. All rights reserved.
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