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Core mutations, IL2...
Core mutations, IL28B polymorphisms and response to peginterferon/ribavirin treatment in Swedish patients with hepatitis C virus genotype 1 infection
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- Alestig, Erik, 1973 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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- Arnholm, B. (author)
- Södra Älvsborgs Sjukhus (SÄS),Södra Älvsborg Hospital (SÄS)
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- Eilard, Anders (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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- Lagging, Martin, 1965 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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- Nilsson, Staffan, 1956 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för matematiska vetenskaper, matematisk statistik,Department of Mathematical Sciences, Mathematical Statistics,Chalmers tekniska högskola,Chalmers University of Technology,University of Gothenburg
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- Norkrans, Gunnar, 1944 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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- Wahlberg, T. (author)
- Skaraborgs Sjukhus,Skaraborg Hospital
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- Wejstål, Rune, 1952 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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- Westin, Johan, 1965 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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- Lindh, Magnus, 1960 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg
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(creator_code:org_t)
- 2011-05-12
- 2011
- English.
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In: BMC Infectious Diseases. - : Springer Science and Business Media LLC. - 1471-2334. ; 11
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https://doi.org/10.1...
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Abstract
Subject headings
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- Background: Patients infected with hepatitis C virus (HCV) genotype 1 respond poorly to standard treatment with 50% or less achieving sustained virologic response. Predicting outcome is essential and could help avoid unnecessary treatment and reduce health cost. Recently, an association of amino acid substitutions in the core region and treatment outcome was observed in Japanese patients. In the present study, the impact of these mutations on response kinetics and treatment outcome was explored in Caucasian patients. Methods: The core region of HCV pre-treatment samples obtained from 50 patients treated with peginterferon/ribavirin in a previous Swedish clinical trial with genotype 1 infection were sequenced. The alleles at rs12979860, a single nucleotide polymorphism (SNP), were assessed in order to identify any co-association with this strong response predictor. Results: No association between treatment response and substitutions of core residue 91 was found. In contrast, substitutions of core residue 70 were observed in 6/21 (29%) non-responders, but only in one of 29 responders (p = 0.03), and were more common in subgenotype 1b (R70Q in 6 of 13 strains) than in 1a (R70P in 1 of 37 strains, p = 0.004). The rs12979860 SNP upstream of the IL28B gene was overall the strongest response predictor (p = 0.0001). Core 70 substitutions were associated with poorer response kinetics in patients carrying the CT genotype at rs12979860. Conclusions: The results indicate that substitutions of core residue 70 are related to treatment response in Caucasian patients with HCV-1b infection, but are of less importance than IL28B polymorphism.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Microbiology in the medical area (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
Keyword
- ribavirin combination therapy
- amino-acid substitutions
- sustained
- virological response
- plus ribavirin
- pegylated interferon
- genetic-variation
- ns5a region
- predictors
- clearance
- dynamics
- amino-acid substitutions
Publication and Content Type
- ref (subject category)
- art (subject category)
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Alestig, Erik, 1 ...
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Arnholm, B.
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Eilard, Anders
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Lagging, Martin, ...
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Nilsson, Staffan ...
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Norkrans, Gunnar ...
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Wahlberg, T.
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Wejstål, Rune, 1 ...
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Westin, Johan, 1 ...
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Lindh, Magnus, 1 ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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MEDICAL AND HEAL ...
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BMC Infectious D ...
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University of Gothenburg
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Chalmers University of Technology