Circulating chemokine levels and receptor polymorphisms have potential as biomarkers for fibrosis stages in patients with chronic hepatitis C infection

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Abstract
Background Chemokines and their receptors, which regulate lymphoid organ development and immune cell trafficking, are integral to the mechanisms underlying viral control, hepatic inflammation, and liver damage in chronic hepatitis C (CHC) infection. This study explores the potential relationship between serum chemokine levels/polymorphisms and hepatitis C infection in affected individuals, with a particular focus on their utility as biomarkers across different stages of fibrosis. Methods and results Serum levels of the chemokines CXCL11, CXCL12, and CXCL16 were measured in patients with mild/moderate and advanced fibrosis due to CHC, as well as in healthy controls, using the ELISA method. The CXCL12 rs1801157 and CXCL16 rs2277680 polymorphisms were analyzed in blood samples from patients and healthy controls through RT-qPCR. Serum levels of CXCL11, CXCL12, and CXCL16 were significantly elevated in patients with advanced fibrosis compared to healthy controls. Furthermore, CXCL11 levels were markedly higher in patients with advanced fibrosis than in those with mild/moderate fibrosis. The frequency of the CXCL12 rs1801157 AA genotype was significantly higher in the advanced fibrosis group compared to the healthy control group. Similarly, the CXCL16 rs2277680 GA genotype was significantly more prevalent in the advanced fibrosis group than in the mild/moderate fibrosis group. Conclusions The current study highlights that, in addition to the potential association between chemokine levels/polymorphisms and an increased risk of disease complications and pathological progression in CHC infection, serum CXCL11 levels and the CXCL16 rs2277680 allel polymorphism may be important factors in determining the fibrosis stage of hepatitis C infection.
Funding Information
  • Mersin University Scientific Research Projects ([2021-1-TP2-4131])
  • Mersin University Scientific Research Projects ([2021-1-TP2-4131])

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