Low expression of CD39(+)/CD45RA(+) on regulatory T cells (T-reg) cells in type 1 diabetic children in contrast to high expression of CD101(+)/CD129(+) on T-reg cells in children with coeliac disease
2015 (English)In: Clinical and Experimental Immunology, ISSN 0009-9104, E-ISSN 1365-2249, Vol. 180, no 1, 70-82 p.Article in journal (Refereed) Published
Type 1 diabetes (T1D) and coeliac disease are both characterized by an autoimmune feature. As T1D and coeliac disease share the same risk genes, patients risk subsequently developing the other disease. This study aimed to investigate the expression of T helper (Th), T cytotoxic (Tc) and regulatory T cells (T-reg) in T1D and/or coeliac disease children in comparison to healthy children. Subgroups of T cells (Th:CD4(+) or Tc:CD8(+)); naive (CD27(+)CD28(+)CD45RA(+)CCR7(+)), central memory (CD27(+)CD28(+)CD45RA(-)CCR7(+)), effector memory (early differentiated; CD27(+)CD28(+)CD45RA(-)CCR7(-) and late differentiated; CD27(-)CD28(-)CD45RA(-)CCR7(-)), terminally differentiated effector cells (TEMRA; CD27(-)CD28(-)CD45RA(+)CCR7(-)) and T-reg (CD4(+)CD25(+)FOXP3(+)CD127(-)) cells, and their expression of CD39, CD45RA, CD101 and CD129, were studied by flow cytometry in T1D and/or coeliac disease children or without any of these diseases (reference group). Children diagnosed with both T1D and coeliac disease showed a higher percentage of TEMRA CD4(+) cells (Pless than005), but lower percentages of both early and late effector memory CD8(+) cells (Pless than005) compared to references. Children with exclusively T1D had lower median fluorescence intensity (MFI) of forkhead box protein 3 (FoxP3) (Pless than005) and also a lower percentage of CD39(+) and CD45RA(+) within the T-reg population (CD4(+)CD25(+)FOXP3(+)CD127(-)) (Pless than005). Children with exclusively coeliac disease had a higher MFI of CD101 (Pless than001), as well as a higher percentage of CD129(+) (Pless than005), in the CD4(+)CD25(hi) lymphocyte population, compared to references. In conclusion, children with combined T1D and coeliac disease have a higher percentage of differentiated CD4(+) cells compared to CD8(+) cells. T1D children show signs of low CD39(+)/CD45RA(+) T-reg cells that may indicate loss of suppressive function. Conversely, children with coeliac disease show signs of CD101(+)/CD129(+) T-reg cells that may indicate suppressor activity.
Place, publisher, year, edition, pages
Wiley: 12 months , 2015. Vol. 180, no 1, 70-82 p.
coeliac disease; T cytotoxic cells; T helper cells; T regulatory cells; type 1 diabetes
Endocrinology and Diabetes
IdentifiersURN: urn:nbn:se:liu:diva-117205DOI: 10.1111/cei.12559ISI: 000351245800008PubMedID: 25421756OAI: oai:DiVA.org:liu-117205DiVA: diva2:807117
Funding Agencies|Medical Research Council of South-East Sweden (FORSS)2015-04-222015-04-212015-04-22