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  • Title: CC genotype donors for the interleukin-28B single nucleotide polymorphism are associated with better outcomes in hepatitis C after liver transplant.
    Author: Firpi RJ, Dong H, Clark VC, Soldevila-Pico C, Morelli G, Cabrera R, Norkina O, Shuster JJ, Nelson DR, Liu C.
    Journal: Liver Int; 2013 Jan; 33(1):72-8. PubMed ID: 23107586.
    Abstract:
    BACKGROUND/AIMS: Interleukin-28B (IL-28B) polymorphism is the strongest pretreatment predictor of viral clearance in the hepatitis C (HCV) population. Donor and recipient IL-28B genomic background may play an important role in post-transplant HCV recurrence. We sought to examine the role of IL-28B polymorphisms of donor and recipients in liver transplant patients with recurrent HCV and its impact on the response to interferon-based therapy. METHODS: The cohort study consisted of 135 adult liver transplant patients who received interferon-based therapy for recurrent HCV between 1996 and 2005 at the University of Florida. IL-28B single nucleotide polymorphism (rs. 12979860) was characterized using liver tissue from all donors and recipients. RESULTS: The CC genotype was observed in approximately 30% of donors and recipients. Sustained viral response (SVR) to HCV therapy was 100% if both recipient and donor were CC genotype, while the SVR was only 25% if neither donor nor recipient had a CC genotype. (Recipient, P = 0.025, Donor, P < 0.001). Recipients and donors with CC genotype had less fibrosis than recipients with genotypes CT and TT, but the difference was not statistically significant. IL-28B genotype did not seem to play a role in the overall survival in these patients. CONCLUSION: In conclusion, recipient and donor CC genotype is associated with a better treatment response to interferon-based therapy after liver transplant. Our study suggests that using CC genotype donor livers for HCV patients may improve the overall clinical outcome after liver transplantation.
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