Expression and significance of peripheral myeloid-derived suppressor cells in chronic hepatitis B patients - 18/10/18
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Highlights |
• | MDSCs contribute to disease progression during chronic HBV infection. |
• | MDSCs are expanded in CHB patients. |
• | MDSCs show adverse effect on Th1 cells in CHB patients. |
• | MDSCs are one of the major causes that lead to inadequate anti-viral immunity. |
Abstract |
Background |
Myeloid-derived suppressor cells (MDSCs) exert their suppressive effects on multiple immune response and contribute to the development of many diseases. However, limited data is available on the involvement of MDSCs in human chronic HBV infection.
Objective |
To investigate whether the progression of chronic HBV infection was associated with imbalance of MDSCs.
Methods |
The percentages of MDSCs, regulatory T (Treg), Th1 and Tc1 cells in the peripheral blood from chronic hepatitis B (CHB) patients and healthy controls (HC) were determined by flow cytometry. Plasma levels of IL-10, TGF-β and IFN-γ were measured using enzyme-linked immunosorbent assay. The potential association of the frequencies of MDSCs with clinical parameters was assessed.
Results |
The percentages of MDSCs and Treg cells were significantly higher in CHB patients than those in HC. The percentages of MDSCs were negatively correlated with Th1 cells. Increased plasma IL-10 level and decreased IFN-γ level were found in CHB patients compared with HC. Moreover, the frequencies of MDSCs and plasma IL-10 levels were positively correlated with serum HBV DNA loads, as well as liver function impairment.
Conclusion |
The expanded peripheral MDSCs may contribute to poor viral clearance and disease progression during chronic HBV infection.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Chronic hepatitis B, Myeloid-derived suppressor cell, Regulatory T cell, Immunosuppression
Mappa
Vol 42 - N° 5
P. 462-469 - Ottobre 2018 Ritorno al numero
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