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A Genetic Validation Study Reveals a Role of Vitamin D Metabolism in the Response to Interferon-alfa-based Therapy of Chronic Hepatitis C

Abstract

Background: To perform a comprehensive study on the relationship between vitamin D metabolism and the response to interferon-α-based therapy of chronic hepatitis C.

Methodology/principal Findings: Associations between a functionally relevant polymorphism in the gene encoding the vitamin D 1α-hydroxylase (CYP27B1-1260 rs10877012) and the response to treatment with pegylated interferon-α (PEG-IFN-α) and ribavirin were determined in 701 patients with chronic hepatitis C. In addition, associations between serum concentrations of 25-hydroxyvitamin D(3) (25[OH]D(3)) and treatment outcome were analysed. CYP27B1-1260 rs10877012 was found to be an independent predictor of sustained virologic response (SVR) in patients with poor-response IL28B genotypes (15% difference in SVR for rs10877012 genotype AA vs. CC, p = 0.02, OR = 1.52, 95% CI = 1.061-2.188), but not in patients with favourable IL28B genotype. Patients with chronic hepatitis C showed a high prevalence of vitamin D insufficiency (25[OH]D(3)<20 ng/mL) during all seasons, but 25(OH)D(3) serum levels were not associated with treatment outcome.

Conclusions/significance: Our study suggests a role of bioactive vitamin D (1,25[OH](2)D(3), calcitriol) in the response to treatment of chronic hepatitis C. However, serum concentration of the calcitriol precursor 25(OH)D(3) is not a suitable predictor of treatment outcome.

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References
1.
von Essen M, Kongsbak M, Schjerling P, Olgaard K, Odum N, Geisler C . Vitamin D controls T cell antigen receptor signaling and activation of human T cells. Nat Immunol. 2010; 11(4):344-9. DOI: 10.1038/ni.1851. View

2.
Zeuzem S, Andreone P, Pol S, Lawitz E, Diago M, Roberts S . Telaprevir for retreatment of HCV infection. N Engl J Med. 2011; 364(25):2417-28. DOI: 10.1056/NEJMoa1013086. View

3.
Poordad F, McCone Jr J, Bacon B, Bruno S, Manns M, Sulkowski M . Boceprevir for untreated chronic HCV genotype 1 infection. N Engl J Med. 2011; 364(13):1195-206. PMC: 3766849. DOI: 10.1056/NEJMoa1010494. View

4.
Prasad L, Masserey Spicher V, Zwahlen M, Rickenbach M, Helbling B, Negro F . Cohort Profile: the Swiss Hepatitis C Cohort Study (SCCS). Int J Epidemiol. 2007; 36(4):731-7. DOI: 10.1093/ije/dym096. View

5.
Martineau A, Timms P, Bothamley G, Hanifa Y, Islam K, Claxton A . High-dose vitamin D(3) during intensive-phase antimicrobial treatment of pulmonary tuberculosis: a double-blind randomised controlled trial. Lancet. 2011; 377(9761):242-50. PMC: 4176755. DOI: 10.1016/S0140-6736(10)61889-2. View