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Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Biomed+Rep 2017 ; 7 (6): 520-6 Nephropedia Template TP
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Aberrant expression of interleukin-10 and activation-induced cytidine deaminase in B cells from patients with Behçet s disease #MMPMID29188055
Yoon JY; Lee Y; Yu SL; Yoon HK; Park HY; Joung CI; Park SR; Kwon M; Kang J
Biomed Rep 2017[Dec]; 7 (6): 520-6 PMID29188055show ga
Despite extensive studies, the pathogenesis of Behçet's disease (BD) remains unclear. In particular, the roles of B cells in patients with BD have not been elucidated. Activation-induced cytidine deaminase (AID) is a critical enzyme for immunoglobulin (Ig) heavy chain class switching and somatic hypermutation in B cells and the abnormal expression of AID in various immune conditions has previously been studied. B10 cells, an interleukin (IL)-10-secreting subset of regulatory B cells, function to downregulate inflammation and autoimmunity. Thus, in the present study, the relevance of B cells in patients with BD was investigated. The plasma levels of IL-10 and IgA and the proportions of cluster of differentiation (CD)43+ B cells, excluding naïve B cells, were measured in 16 patients with BD and 16 age- and sex-matched healthy controls (HCs). Additionally, the mRNA levels of IL-10 and AID were assessed in B cells from fresh peripheral blood samples of the BD patients and HCs. The plasma level of IL-10 in patients with BD did not differ significantly from that in HCs. Similarly, there was no significant difference in the plasma level of IgA, although a slight increase was observed in patients with BD compared with that in HCs. There were no differences in CD43+CD19+ B cell numbers between patients with BD and HCs. However, IL-10 mRNA levels were significantly reduced (P<0.05), while AID mRNA levels were significantly increased (P<0.01) in the B cells of patients with BD compared with those in HCs. These results provide insight into the role of B cells in patients with BD.