کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8738279 1591525 2018 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of IL-10-secreting CD8+CD28−PD-1+ regulatory T cells associated with chronic hepatitis C virus infection
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Identification of IL-10-secreting CD8+CD28−PD-1+ regulatory T cells associated with chronic hepatitis C virus infection
چکیده انگلیسی
CD8+CD28− regulatory T cells (Tregs) play important roles in chronic viral infections. Programmed death 1 (PD-1) is highly expressed on hepatitis C virus (HCV)-specific CTLs. However, little is known regarding the role of CD8+CD28-PD1+ T cells in hepatitis C. Herein, we found that the frequency of CD8+CD28−PD1+, but not CD8+CD28−PD1− T cells, correlated with markers of chronic hepatitis C virus (HCV) infection and the response to treatment. Our results showed that CD8+CD28-PD1+ T cells were significantly elevated in chronic HCV-infected patients and there was a distinct correlation between the frequency of CD8+CD28-PD1+ T cells and serum levels of HCV RNA. During a 48-week course of treatment with peg-IFN-a2a plus ribavirin, dynamic changes in the frequencies of CD8+CD28-PD1+ T cells were observed, associated with the virologic response. IL-10 secretion may explain the suppressive function of CD8+CD28-PD1+ T cells in chronic HCV-infected patients. Overall, our study demonstrates that PD-1 is an important marker of CD8+CD28− Tregs in chronic HCV infection. Thus, the frequency and regulatory function of CD8+CD28-PD1+ T cells play vital roles in HCV infection and the response to treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Immunology Letters - Volume 202, October 2018, Pages 16-22
نویسندگان
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