CD25 deficiency causes an immune dysregulation, polyendocrinopathy, enteropathy, X-linked-like syndrome, and defective IL-10 expression from CD4 lymphocytes. J Allergy Clin Immunol 2007 Feb;119(2):482-7
Date
01/02/2007Pubmed ID
17196245DOI
10.1016/j.jaci.2006.10.007Scopus ID
2-s2.0-33846805925 (requires institutional sign-in at Scopus site) 342 CitationsAbstract
BACKGROUND: Immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX) results in systemic autoimmunity from birth and can be caused by mutations in the transcription factor forkhead box P3 (FOXP3).
OBJECTIVE: To determine if Foxp3 is required for the generation of IL-10-expressing T regulatory cells.
METHODS: CD4 lymphocytes were isolated from patients with IPEX-like syndromes and activated with antibodies to CD3 and CD46 to generate IL-10-expressing T regulatory cells.
RESULTS: We describe a patient with clinical manifestations of IPEX that had a normal Foxp3 gene, but who had CD25 deficiency due to autosomal recessive mutations in this gene. This patient exhibited defective IL-10 expression from CD4 lymphocytes, whereas a Foxp3-deficient patient expressed normal levels of IL-10.
CONCLUSION: These data show that CD25 deficiency results in an IPEX-like syndrome and suggests that although Foxp3 is not required for normal IL-10 expression by human CD4 lymphocytes, CD25 expression is important.
CLINICAL IMPLICATIONS: Any patient with features of IPEX but with a normal Foxp3 gene should be screened for mutations in the IL-2 receptor subunit CD25.
Author List
Caudy AA, Reddy ST, Chatila T, Atkinson JP, Verbsky JWAuthor
James Verbsky MD, PhD Professor in the Pediatrics department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AllelesCD4-Positive T-Lymphocytes
Child
Forkhead Transcription Factors
Genetic Diseases, X-Linked
Humans
Interleukin-10
Interleukin-15
Interleukin-2
Interleukin-2 Receptor alpha Subunit
Intestinal Diseases
Male
Polyendocrinopathies, Autoimmune
Syndrome
