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CXCL9 (monokine induced by IFN γ Mig) and CXCL10 (interferon IFN γ-inducible protein 10 IP-10) have been associated with hepatic fibrosis in predominantly white hepatitis C virus (HCV)-infected patients. We investigated their potential as noninvasive markers of hepatic fibrosis and fibrosis progression in African-American patients. Peripheral chemokine levels were measured in 115 HCV-infected patients within 4 months of liver biopsy; patients underwent a second biopsy after 3-5 years. CXCL10 levels appeared to be higher in patients with advanced fibrosis on the contemporaneous biopsy and were significantly higher in patients with advanced fibrosis compared with those with minimal fibrosis on the later biopsy (P = .0045). Therefore, CXCL10 has potential as a marker of fibrosis progression in African-American HCV-infected patients.
Zeremski et al. (Wed,) studied this question.