Abstract
PurposeReelin is an extracellular matrix protein originally found to be associated with neuropsychiatric disorders. Recent findings indicate, that reelin may also play an important role in the process of liver fibrosis as well as in the development of hepatocellular carcinoma (HCC). Against this background, the aim of our study was to explore alterations in blood reelin levels in different stages of chronic liver diseases. Patients and methodsWe analyzed blood samples of patients with chronic liver disease without liver fibrosis (n = 25), with liver fibrosis (n = 36), with liver cirrhosis (n = 74), with HCC (n = 26) as well as of healthy controls (n = 15). Blood reelin concentrations were determined utilizing an enzyme-linked immunosorbent assay. ResultsBlood reelin levels were significantly elevated in patients who had liver fibrosis or cirrhosis compared to patients without liver fibrosis and healthy controls (13.9 (10.2–21.1) ng/ml vs. 11.2 (8.8–16.8) ng/ml, p = 0.032). Importantly, patients with HCC displayed significantly higher reelin concentrations compared to patients with liver cirrhosis alone (27.0 (17.3–35.9) ng/ml vs. 16.6 (11.0–22.7) ng/ml, p < 0.001). Blood reelin was not relevantly linked to liver function, inflammation and etiology of liver disease. ConclusionsOur results demonstrate, that blood reelin levels are altered in different stages of chronic liver disease, which makes reelin a potential biomarker in this setting. This may be especially relevant with regard to its use as an additional tumor marker of HCC.
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