The proportion of different interleukin-17-producing T-cell subsets is associated with liver fibrosis in chronic hepatitis C.

Autor: Cachem FCOF; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.; Department of Microbiology, Immunology and Parasitology, UERJ, Rio de Janeiro, Brazil., Dias AS; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil., Monteiro C; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.; Department of Microbiology, Immunology and Parasitology, UERJ, Rio de Janeiro, Brazil., Castro JR; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil., Fernandes G; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil., Delphim L; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil., Almeida AJ; Division of Gastroenterology & Hepatology, Internal Medicine Department, HUGG, UNIRIO, Rio de Janeiro, Brazil., Tavares F; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil., Maciel AMA; Division of Gastroenterology & Hepatology, Internal Medicine Department, HUGG, UNIRIO, Rio de Janeiro, Brazil., Amendola-Pires MM; Division of Gastroenterology & Hepatology, Internal Medicine Department, HUGG, UNIRIO, Rio de Janeiro, Brazil., Brandão-Mello CE; Division of Gastroenterology & Hepatology, Internal Medicine Department, HUGG, UNIRIO, Rio de Janeiro, Brazil., Bento CAM; Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.; Department of Microbiology, Immunology and Parasitology, UERJ, Rio de Janeiro, Brazil.
Jazyk: angličtina
Zdroj: Immunology [Immunology] 2017 Jun; Vol. 151 (2), pp. 167-176. Date of Electronic Publication: 2017 Mar 13.
DOI: 10.1111/imm.12720
Abstrakt: Studies have suggested the pivotal role of T helper type 1 (Th1) -related cytokines on the outcome of hepatitis C virus (HCV) infection. Nevertheless, the role of different interleukin-17 (IL-17) -secreting T cells on chronic hepatitis C (CHC) is less clear. Here, the in vivo IL-1β, IL-6, and IL-17 levels were positively correlated with both alanine transaminase (ALT) levels and hepatic lesions. When compared with the control group, CHC patients showed a lower proportion of IL-17-secreting (CD4 + and CD8 + ) T cells capable of simultaneously producing IL-21. Moreover, the percentage of IL-10-secreting Th17 cells was also lower in CHC patients. Notably, advanced liver lesions were observed among those patients with lower percentage levels of IL-17-producing T cells positive for IL-21, interferon-γ (IFN-γ) and IL-10. In contrast, the severity of hepatic damage was associated with peripheral single IL-17 + T cells. The percentage of IL-17 + IL-21 - IFN-γ + (CD4 + and CD8 + ) T-cell phenotypes was positively associated with plasma CD14 levels. Finally, elevated levels of circulating CD14 were detected among CHC patients with extensive liver damage. In summary, although preliminary, our results suggest that a balance between different IL-17-producing T cells, associated with peripheral levels of CD14, may be a progress marker for liver disease in chronically HCV-infected patients.
(© 2017 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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