Decreased serum DNase1-activity in patients with autoimmune liver diseases
Date
2017Language
en
Keyword
Abstract
Deoxyribonuclease1 (DNase1) is involved in chromatin degradation of apoptotic cells. Its deficiency results in accumulation of self-DNA, which in turn may induce inflammation and autoimmunity. We assessed for the first time serum DNase1-activity in a large consecutive cohort of treatment-naïve patients with autoimmune liver diseases (ALD). DNase1-activity was determined by single radial enzyme-diffusion (SRED) at diagnosis of 224 patients with autoimmune hepatitis (AIH), 249 with primary biliary cirrhosis (PBC) and 36 with primary sclerosing cholangitis (PSC). Sera from 146 patients with chronic hepatitis B or C, 140 with nonalcoholic fatty liver disease/nonalcoholic steatohepatitis (NAFLD/NASH) and 114 healthy individuals served as disease and healthy controls. Available serum samples during remission from 50 AIH and 39 PBC patients were also investigated by paired analyzes. DNase1-activity was significantly lower in AIH, PBC and PSC compared to viral hepatitis (p < 0.02, p < 0.001, p = 0.03), NAFLD/NASH (p < 0.001) and healthy (p < 0.001). No significant difference was found in between each specific ALD. In AIH, DNAse1-activity was positively correlated with aspartate aminotransferase (AST) (p < 0.02), bilirubin (p < 0.01) and increased IgG (>1400 mg/dl; p < 0.05); in PBC, with AST (p < 0.01), alanine aminotransferase (ALT) (p < 0.03) and anti-mitochondrial antibodies (AMA) (p = 0.008). In PSC, DNase1-activity was inversely associated with alkaline phosphatase (ALP) (p < 0.05). In AIH, complete responders were characterized by increased baseline DNase1-activity compared to partial responders, relapsers and non-responders (p < 0.02), whereas it was significantly increased after achievement of remission (p < 0.001). Serum DNase1-activity is significantly decreased in ALD patients, indicating its potential implication in their pathogenesis. Furthermore, DNase1-activity could be used as a new surrogate biomarker for predicting response to AIH treatment. © 2017 Informa UK Limited, trading as Taylor & Francis Group.
Collections
Related items
Showing items related by title, author, creator and subject.
-
Non-alcoholic steatohepatitis or autoimmune hepatitis? Sometimes a closer look under the surface is needed
Dalekos G.N., Gatselis N.K., Koukoulis G.K. (2020)Non-alcoholic fatty liver disease (NAFLD) is nowadays the most common liver disease worldwide. Autoimmune hepatitis (AIH) is a relatively rare disease of the liver characterised by female predominance, circulating ... -
Support of precision medicine through risk-stratification in autoimmune liver diseases – histology, scoring systems, and non-invasive markers
Bossen L., Gerussi A., Lygoura V., Mells G.F., Carbone M., Invernizzi P. (2018)Autoimmune liver diseases (AILDs) are complex conditions, which arise from the interaction between a genetic susceptibility and unknown environmental triggers. They represent a relevant cause of liver failure and liver ... -
FibroMeter scores for the assessment of liver fibrosis in patients with autoimmune liver diseases
Zachou K., Lygoura V., Arvaniti P., Giannoulis G., Gatselis N.K., Koukoulis G.K., Dalekos G.N. (2021)Introduction and Objectives: We assessed FibroMeter virus (FMvirus) and FibroMeter vibration-controlled transient elastography (FMVCTE) in 134 patients with autoimmune liver diseases [ALD, autoimmune hepatitis (AIH) and ...