aberrant frequency of il-10-producing b cells and its association with treg/th17 in adult primary immune thrombocytopenia patients

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2014
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Abstract
Background. Regulatory B cells (Breg) are a distinct B cell subset with immunoregulatory properties. Pivotal to Breg function is interleukin-10. This study was to investigate the role of IL-10-producing B cell (B10) and its association with Treg and Th17 subsets in immune thrombocytopenia (ITP) patients. Methods. Peripheral blood mononuclear cells from ITP patients and controls were stimulated with PMA, ionomycin, and Brefeldin A. The frequencies of CD19+IL-10+ B cells, CD3+CD4+IL-17+ Th17 cells, and CD4+CD25hiFoxp3+ Treg cells were analyzed by flow cytometry. The mRNA expression of Foxp3 and RORγt was detected by real-time quantitative PCR. Results. The number of B10 cells was elevated in ITP patients. After first-line therapies, it remained at high level in patients who achieved complete or partial response but decreased in those who acquired no response. There was a positive correlation between B10 cells and Tregs in ITP both before and after therapies. The ratio of Treg/Th17 decreased in ITP, and it strongly correlated with B10 cells. Conclusions. The frequency of B10 cells is elevated in ITP and it correlates with both the Tregs counts and the Treg/Th17 ratio. B10 cells to regulate functional T cell subsets might be impaired in patients with ITP.
Reference Key
hua2014biomedaberrant Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Fanli Hua;Lili Ji;Yanxia Zhan;Feng Li;Shanhua Zou;Lihang Chen;Song Gao;Ying Li;Hao Chen;Yunfeng Cheng
Journal spectrochimica acta - part a: molecular and biomolecular spectroscopy
Year 2014
DOI
10.1155/2014/571302
URL
http://dx.doi.org/10.1155/2014/571302
Keywords
Medicine

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