Abstract:
:Interleukin (IL)28-B polymorphism has been related to interferon response in the treatment of hepatitis C, but its role in chronic hepatitis B (CHB) therapy is still poorly understood. We aimed to investigate the effect of IL28-B polymorphisms in the treatment with pegylated-interferon (PEG-IFN) of patients with CHB. We retrospectively analyzed 190 patients with chronic hepatitis B e antigen (HBeAg) negative, genotype A (22%), B (12%), C (10%), D (33%), E (20%), treated with PEG-IFN alfa-2a for 48weeks; genotype analysis was performed for IL28-B polymorphisms rs12979860, rs8099917 and rs12980275 according to virological, serological and biochemical response. During 2years of follow-up 12 patients (6.3%) cleared hepatitis B surface antigen (HBsAg) with seroconversion, 40 (21%) obtained a negative viral load and 104 (54.7%) gained a biochemical response. We found a difference of distribution of rs12979860 CC genotype among different ethnicity (p=0.013). Rs12979860 CC genotype was significantly associated with serological and virological response (p<0.001); rs8099917 TT and rs12980275 AA genotypes were mostly related with virological response (p<0.001). In multivariate logistic analysis rs12979860 CC was predictive of virological response (OR=4.290; CI=1.589-11.580, p=0.004) and serological response (OR=10.129; CI=2.440-42.044; p<0.001). Rs8099917 TT was predictive only of virological response (OR=3.746, CI=1.235-11.355; p=0.020). The E genotype was a negative predictive factor of virological response (OR=0.057; CI=0.014-0.238; p<0.001). IL28-B polymorphisms are related to different response in the treatment of CHB HBeAg-negative with PEG-IFN, and the E genotype is a novel negative predictive factor.
journal_name
Antiviral Resjournal_title
Antiviral researchauthors
Boglione L,Cusato J,Allegra S,Esposito I,Patti F,Cariti G,Di Perri G,D'Avolio Adoi
10.1016/j.antiviral.2013.11.014subject
Has Abstractpub_date
2014-02-01 00:00:00pages
35-43eissn
0166-3542issn
1872-9096pii
S0166-3542(13)00356-2journal_volume
102pub_type
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