1
|
Sato M, Kondo M, Tateishi R, Fujiwara N, Kato N, Yoshida H, Taguri M, Koike K. Impact of IL28B genetic variation on HCV-induced liver fibrosis, inflammation, and steatosis: a meta-analysis. PLoS One 2014; 9:e91822. [PMID: 24637774 PMCID: PMC3956722 DOI: 10.1371/journal.pone.0091822] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 02/15/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND & AIMS IL28B polymorphisms were shown to be strongly associated with the response to interferon therapy in chronic hepatitis C (CHC) and spontaneous viral clearance. However, little is known about how these polymorphisms affect the natural course of the disease. Thus, we conducted the present meta-analysis to assess the impact of IL28B polymorphisms on disease progression. METHODS A literature search was conducted using MEDLINE, EMBASE, and the Cochrane Library. Integrated odds ratios (OR) were calculated with a fixed-effects or random-effects model based on heterogeneity analyses. RESULTS We identified 28 studies that included 10,024 patients. The pooled results indicated that the rs12979860 genotype CC was significantly associated (vs. genotype CT/TT; OR, 1.122; 95%CI, 1.003-1.254; P = 0.044), and that the rs8099917 genotype TT tended to be (vs. genotype TG/GG; OR, 1.126; 95%CI, 0.988-1.284; P = 0.076) associated, with an increased possibility of severe fibrosis. Both rs12979860 CC (vs. CT/TT; OR, 1.288; 95%CI, 1.050-1.581; P = 0.015) and rs8099917 TT (vs. TG/GG; OR, 1.324; 95%CI, 1.110-1.579; P = 0.002) were significantly associated with a higher possibility of severe inflammation activity. Rs8099917 TT was also significantly associated with a lower possibility of severe steatosis (vs. TG/GG; OR, 0.580; 95%CI, 0.351-0.959; P = 0.034), whereas rs12979860 CC was not associated with hepatic steatosis (vs. CT/TT; OR, 1.062; 95%CI, 0.415-2.717; P = 0.901). CONCLUSIONS IL28B polymorphisms appeared to modify the natural course of disease in patients with CHC. Disease progression seems to be promoted in patients with the rs12979860 CC and rs8099917 TT genotypes.
Collapse
Affiliation(s)
- Masaya Sato
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Mayuko Kondo
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Ryosuke Tateishi
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Naoto Fujiwara
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Naoya Kato
- Unit of Disease Control Genome Medicine, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Haruhiko Yoshida
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Masataka Taguri
- Department of Biostatistics and Epidemiology, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan
| | - Kazuhiko Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| |
Collapse
|
2
|
Harada N, Tamura S, Sugawara Y, Togashi J, Ishizawa T, Kaneko J, Aoki T, Sakamoto Y, Hasegawa K, Tanaka T, Yamashiki N, Kokudo N. Impact of donor and recipient single nucleotide polymorphisms of IL28B rs8099917 in living donor liver transplantation for hepatitis C. PLoS One 2014; 9:e90462. [PMID: 24599320 PMCID: PMC3944011 DOI: 10.1371/journal.pone.0090462] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 01/31/2014] [Indexed: 02/06/2023] Open
Abstract
Single nucleotide polymorphisms of interleukin-28B (IL28B) rs8099917 are reported to be associated with virologic clearance in interferon-and ribavirin -based treatment for hepatitis C virus (HCV)-infected patients. We examined virologic response in accordance with IL28B polymorphisms in our living donor liver transplantation series under a preemptive interferon and RBV treatment approach. Adequate DNA samples from both the recipient and donor for the study of single nucleotide polymorphisms of IL28B were available from 96 cases and were the subjects of the present study. Various clinical factors related with virologic response including early virologic response (EVR) and sustained virologic response (SVR) were examined. Totally 51% presented with EVR and 44% achieved SVR. Presence of the major allele (TT) in either the recipient or the donor corresponded to SVR of 53% and 48%. Presence of the minor allele (TG or GG) corresponded to SVR of 26% and 32%. Multivariate analysis revealed that genotype of HCV or EVR, but not IL28B polymorphisms in either the recipient or donor, was an independent factor for achieving SVR. When virologic response to treatment was incorporated into analysis, the impact of IL28B polymorphism on virological clearance remained relative to other factors and was not significantly independent.
Collapse
Affiliation(s)
- Nobuhiro Harada
- Division of Artificial Organ and Transplantation, The University of Tokyo Hospital, Tokyo, Japan
| | - Sumihito Tamura
- Division of Artificial Organ and Transplantation, The University of Tokyo Hospital, Tokyo, Japan
| | - Yasuhiko Sugawara
- Division of Artificial Organ and Transplantation, The University of Tokyo Hospital, Tokyo, Japan
- Organ Transplantation Service, The University of Tokyo Hospital, Tokyo, Japan
| | - Junichi Togashi
- Division of Artificial Organ and Transplantation, The University of Tokyo Hospital, Tokyo, Japan
| | - Takeaki Ishizawa
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Junichi Kaneko
- Division of Artificial Organ and Transplantation, The University of Tokyo Hospital, Tokyo, Japan
| | - Taku Aoki
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshihiro Sakamoto
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Kiyoshi Hasegawa
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Tomohiro Tanaka
- Organ Transplantation Service, The University of Tokyo Hospital, Tokyo, Japan
| | - Noriyo Yamashiki
- Organ Transplantation Service, The University of Tokyo Hospital, Tokyo, Japan
| | - Norihiro Kokudo
- Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, The University of Tokyo Hospital, Tokyo, Japan
- Organ Transplantation Service, The University of Tokyo Hospital, Tokyo, Japan
| |
Collapse
|
3
|
Nishiguchi S, Enomoto H, Aizawa N, Nishikawa H, Osaki Y, Tsuda Y, Higuchi K, Okazaki K, Seki T, Kim SR, Hongo Y, Jyomura H, Nishida N, Kudo M. Relevance of the Core 70 and IL-28B polymorphism and response-guided therapy of peginterferon alfa-2a ± ribavirin for chronic hepatitis C of Genotype 1b: a multicenter randomized trial, ReGIT-J study. J Gastroenterol 2014; 49:492-501. [PMID: 23543311 PMCID: PMC3953545 DOI: 10.1007/s00535-013-0785-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 02/19/2013] [Indexed: 02/15/2023]
Abstract
BACKGROUND We conducted a multicenter randomized clinical trial to determine the optimal treatment strategy against chronic hepatitis C virus (HCV) with genotype 1b and a high viral load (G1b/high). METHODS The study subjects included 153 patients with G1b/high. Patients were initially treated with PEG-IFNα-2a alone and then randomly assigned to receive different treatment regimens. Ribavirin (RBV) was administered to all patients with HCV RNA at week 4. Patients negative for HCV RNA at week 4 were randomly assigned to receive PEG-IFNα-2a (group A) or PEG-IFNα-2a/RBV (group B). Patients who showed HCV RNA at week 4 but were negative at week 12 were randomly assigned to receive weekly PEG-IFNα-2a (group C) or biweekly therapy (group D). Patients who showed HCV RNA at week 12 but were negative at week 24 were randomly assigned to receive PEG-IFNα-2a/RBV (group E) or PEG-IFNα-2a/RBV/fluvastatin (group F). RESULTS Overall, the rate of sustained virological response (SVR) was 46 % (70/153). The total SVR rate in the group (A, D, and F) of response-guided therapy was significantly higher than that in the group (B, C, and E) of conventional therapy [70 % (38/54) versus 52 % (32/61), p = 0.049]. Although IL28-B polymorphism and Core 70 mutation were significantly associated with efficacy, patients with rapid virological response (RVR) and complete early virological response (cEVR) achieved high SVR rates regardless of their status of IL-28B polymorphism and Core 70 mutation. CONCLUSION In addition to knowing the IL-28B polymorphism and Core 70 mutation status, understanding the likelihood of virological response during treatment is critical in determining the appropriate treatment strategy.
Collapse
Affiliation(s)
- Shuhei Nishiguchi
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo, 663-8501, Japan,
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
4
|
Toyoda H, Kumada T. Extended treatment duration overcomes the requirement for profound week-4 interferon responsiveness in order for hepatitis C genotype 1 patients with unfavorable IL-28B genotype to achieve sustained virologic response. J Clin Virol 2013; 57:381. [DOI: 10.1016/j.jcv.2013.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Accepted: 04/22/2013] [Indexed: 10/26/2022]
|
5
|
Luo Y, Jin C, Ling Z, Mou X, Zhang Q, Xiang C. Association study of IL28B: rs12979860 and rs8099917 polymorphisms with SVR in patients infected with chronic HCV genotype 1 to PEG-INF/RBV therapy using systematic meta-analysis. Gene 2013; 513:292-6. [PMID: 23142377 DOI: 10.1016/j.gene.2012.10.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Accepted: 10/21/2012] [Indexed: 12/22/2022]
Abstract
Recently, genome-wide associated studies (GWAS) have identified that host genetics IL28B SNPs rs12979860 and rs8099917 were significantly associated with SVR in patients infected with chronic HCV genotype 1 to PEG-INF/RBV therapy. Results from these studies remain conflicting. We conducted this meta-analysis to estimate the overall association of SVR with rs12979860 and rs8099917. We searched the PubMed, Embase, Scholar Google, ISI Web of Knowledge, and Chinese National Knowledge Infrastructure (CNKI) databases for all articles before July 30, 2012. The odds ratio (OR) corresponding to the 95% confidence interval (CI) was used to assess the association. The statistical heterogeneity among studies was assessed with the I(2) statistics. Begg's test and Egger's test were performed to evaluate the publication bias. Eventually, twenty studies were selected for the meta-analysis. The IL-28B SNPs rs12979860 genotype CC and rs8099917 genotype TT significantly positive associated with SVR in patients infected chronic HCV genotype 1 to PEG-INF/RBV therapy (OR=4.473, 95% CI=3.814-5.246, OR=5.171, 95% CI=4.372-6.117 respectively). The results suggested that rs12979860 genotype CC and rs8099917 genotype TT could be used as independent predictors of the HCV-1 infected patients.
Collapse
Affiliation(s)
- Yueqiu Luo
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang province 310003, PR China
| | | | | | | | | | | |
Collapse
|
6
|
Rau M, Baur K, Geier A. Host genetic variants in the pathogenesis of hepatitis C. Viruses 2012; 4:3281-302. [PMID: 23342360 PMCID: PMC3528266 DOI: 10.3390/v4123281] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 11/17/2012] [Accepted: 11/17/2012] [Indexed: 02/06/2023] Open
Abstract
Direct-acting antiviral drugs (DAAs) are currently replacing antiviral therapy for Hepatitis C infection. Treatment related side effects are even worse and the emergence of resistant viruses must be avoided because of the direct-antiviral action. Altogether it remains a challenge to take treatment decisions in a clinical setting with cost restrictions. Genetic host factors are hereby essential to implement an individualized treatment concept. In recent years results on different genetic variants have been published with a strong association with therapy response, fibrosis and treatment-related side effects. Polymorphisms of the IL28B gene were identified as accurate predictors for therapy response and spontaneous clearance of HCV infection and are already used for diagnostic decisions. For RBV-induced side effects, such as hemolytic anemia, associations to genetic variants of inosine triphosphatase (ITPA) were described and different SLC28 transporters for RBV-uptake have been successfully analyzed. Fibrosis progression has been associated with variants of Vitamin D receptor (VDR) and ABCB11 (bile salt export pump). Cirrhotic patients especially have a high treatment risk and low therapy response, so that personalized antiviral treatment is mandatory. This review focuses on different host genetic variants in the pathogenesis of Hepatitis C at the beginning of a new area of treatment.
Collapse
Affiliation(s)
- Monika Rau
- Division of Hepatology, Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacherstraße 6, 97080 Würzburg, Germany;
| | - Katharina Baur
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Rämistrasse 100, 8091 Zurich, Switzerland;
| | - Andreas Geier
- Division of Hepatology, Department of Internal Medicine II, University Hospital Würzburg, Oberdürrbacherstraße 6, 97080 Würzburg, Germany;
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Rämistrasse 100, 8091 Zurich, Switzerland;
| |
Collapse
|
7
|
Toyoda H, Kumada T, Katano Y, Goto H. Week 4 viral response to peginterferon and ribavirin: how should it be used in combination with a baseline predictive factor? J Hepatol 2012; 57:927-8. [PMID: 22727528 DOI: 10.1016/j.jhep.2012.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 04/04/2012] [Accepted: 04/13/2012] [Indexed: 12/04/2022]
|
8
|
Abstract
Evolution of RNA viruses occurs through disequilibria of collections of closely related mutant spectra or mutant clouds termed viral quasispecies. Here we review the origin of the quasispecies concept and some biological implications of quasispecies dynamics. Two main aspects are addressed: (i) mutant clouds as reservoirs of phenotypic variants for virus adaptability and (ii) the internal interactions that are established within mutant spectra that render a virus ensemble the unit of selection. The understanding of viruses as quasispecies has led to new antiviral designs, such as lethal mutagenesis, whose aim is to drive viruses toward low fitness values with limited chances of fitness recovery. The impact of quasispecies for three salient human pathogens, human immunodeficiency virus and the hepatitis B and C viruses, is reviewed, with emphasis on antiviral treatment strategies. Finally, extensions of quasispecies to nonviral systems are briefly mentioned to emphasize the broad applicability of quasispecies theory.
Collapse
Affiliation(s)
- Esteban Domingo
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), C/ Nicolás Cabrera, Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain.
| | | | | |
Collapse
|