CD39 expression on Treg and Th17 cells is associated with metabolic factors in patients with type 2 diabetes
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Th17 cells are involved in the pathogenesis of multiple inflammatory diseases such as type two diabetes (T2D). CD39%2b Treg cells have been implicated as responsible for suppressing Th17 cells. The aim of this study was to evaluate the number and function of CD4%2bCD25highCD39%2b Treg and Th17 cells in peripheral blood mononuclear cells (PBMC) from T2D patients and healthy control subjects. The Th17 cells were detected in PBMC under culture with human anti-CD3/CD28 and PMA/ionomycin and the levels of IL-17 were assessed by ELISA and qPCR. The T2D patients with obesity showed significantly lower percentages of CD39%2b Treg cells. A negative correlation between CD39%2b Treg cells and weight, and body mass index was detected. In contrast, the low levels of CD4%2bIL-17%2b cells in overweight and obese T2D patients showed a positive correlation with glucose and HbA1c. Additionally, we found a subpopulation of Th17 cells that express CD39 and were correlated with glucose and HbA1c. Our findings suggest that the expression of CD39 on Treg cells and also in CD4%2bIL-17%2b cells from T2D patients is related to hyperglycemia as well as to overweight and obesity and therefore may participate as a modulator of the effector capacity of Th17 cells. © 2015 American Society for Histocompatibility and Immunogenetics.
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CD39; CD39+ Treg cells; Obesity; Th17 cells; Type 2 diabetes carboxyfluorescein diacetate succinimidyl ester; CD3 antibody; CD39 antigen; CD4 antigen; glucose; hemoglobin A1c; interleukin 17; interleukin 2 receptor alpha; ionomycin; transcription factor FOXP3; apyrase; biological marker; CD39 antigen; cytokine; forkhead transcription factor; FOXP3 protein, human; leukocyte antigen; adult; Article; body mass; body weight; cell proliferation; clinical article; controlled study; cytokine release; diet restriction; enzyme linked immunosorbent assay; fasting plasma glucose; female; flow cytometry; glucose blood level; human; human cell; hyperglycemia; inflammatory cell; male; non insulin dependent diabetes mellitus; obesity; peripheral blood mononuclear cell; priority journal; protein expression; quantitative analysis; real time polymerase chain reaction; regulatory T lymphocyte; Th17 cell; aged; case control study; Diabetes Mellitus, Type 2; gene expression; genetics; immunology; immunophenotyping; lymphocyte count; metabolism; middle aged; phenotype; regulatory T lymphocyte; T lymphocyte subpopulation; Th17 cell; Adult; Aged; Antigens, CD; Apyrase; Biomarkers; Case-Control Studies; Cytokines; Diabetes Mellitus, Type 2; Female; Forkhead Transcription Factors; Gene Expression; Humans; Immunophenotyping; Lymphocyte Count; Male; Middle Aged; Phenotype; T-Lymphocyte Subsets; T-Lymphocytes, Regulatory; Th17 Cells
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