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Microbial translocation and T cell activation are modified by direct-acting antiviral therapy in HCV-infected patients.

Abstract：

BACKGROUND:Microbial translocation from the gut lumen has been involved in the pathogenesis of liver damage in hepatitis C virus (HCV) infection. AIM:To investigate the impact of direct-acting antiviral treatment on microbial translocation and T-cell activation, in patients with hepatitis C-related liver disease. METHODS:We enrolled two groups of HCV-infected patients undergoing direct-acting antiviral treatment: patients with fibrosis ≥F3 according to Metavir (Group ≥F3); patients with hepatitis C recurrence after liver transplantation and Metavir ≥F2 (Group Liver Transplantation + ≥F2). All patients were treated with direct-acting antivirals based on ongoing guidelines. Surrogate biomarkers of microbial translocation (plasma concentrations of soluble-CD14, lipopolysaccharide-binding protein and intestinal fatty acid-binding protein) were evaluated at baseline, at first month, at the end of treatment and 3 months later. T-cell activation was measured by expression of CD38+ HLA-DR at the same time points, only in Group ≥F3. RESULTS:There were 32 patients in Group ≥F3 and 13 in Group LT + ≥F2. At baseline, levels of soluble-CD14 and lipopolysaccharide-binding protein were significantly higher in both groups vs healthy controls. Baseline soluble-CD14 correlated with glutamic-oxalacetic transaminase (r = 0.384, P = 0.009) and glutamic-pyruvic transaminase (r = 0.293, P = 0.05). A significant decrease in plasma levels of surrogate microbial translocation biomarkers was observed during and after treatment in the two groups although values were not normalised. In Group ≥F3, CD38+ HLADR+ T-cell expression was significantly decreased by direct-acting antiviral treatment. Relapsers (9%) showed higher soluble-CD14 levels at baseline. CONCLUSION:Surrogate microbial translocation markers and T cell activation are increased in HCV-infected patients with liver fibrosis and decrease during direct-acting antiviral treatment.

journal_name

Aliment Pharmacol Ther

journal_title

Alimentary pharmacology & therapeutics

authors

Lattanzi B,Baroncelli S,De Santis A,Galluzzo CM,Mennini G,Michelini Z,Lupo M,Ginanni Corradini S,Rossi M,Palmisano L,Merli M

doi

10.1111/apt.14994

subject

Has Abstract

pub_date

2018-11-01 00:00:00

pages

1146-1155

issue

eissn

0269-2813

issn

1365-2036

journal_volume

pub_type

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Microbial translocation and T cell activation are modified by direct-acting antiviral therapy in HCV-infected patients.