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Tao Y, Han X, Liu N, Shi L, Shi L, Liu S, Yao Y. Association study of TAP and HLA-I gene combination with chronic hepatitis C virus infection in a Han population in China. Int J Immunogenet 2022; 49:169-180. [PMID: 35485366 DOI: 10.1111/iji.12574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/08/2022] [Accepted: 04/03/2022] [Indexed: 11/28/2022]
Abstract
Host immune system genes play key roles in the progression of chronic hepatitis C virus (HCV) infection. Transporters associated with antigen processing (TAP) play an important role in the loading of viral peptides onto MHC class I molecules. This study aimed to investigate the association between TAP gene polymorphisms and chronic HCV in a Chinese Han population. A total of 232 chronic hepatitis C (CHC) patients and 362 healthy individuals were recruited from the Han population in Yunnan province in southwest China, and a TaqMan SNP genotyping assay was used to detect six single nucleotide polymorphisms (SNPs) of TAP1 and three SNPs of TAP2 genes. The association of the TAP gene with CHC was analysed at the allele, genotype, and haplotype levels. There were no significant differences in the allele and genotype frequencies of these SNPs in the TAP gene between CHC patients and controls after Bonferroni correction. A novel TAP1 allele (TAP1*unknown_1: rs41555220-rs41549617-rs1057141-rs1135216-rs1057149-rs41551515: G-G-A-G-G-G) was only present in the CHC group, and this allele significantly increased susceptibility to CHC (p = .005, odds ratio [OR] = 11.105. 95% confidence interval [CI]: 1.362-90.558). Homozygous TAP1*03:01/TAP1*03:01 was observed only in the CHC group that exhibited an obvious risk for CHC (p = .002, OR = 9.637, 95% CI: 1.153-80.574). And the haplotype TAP1*unknown_1-TAP2*01:01 was only present in the CHC group and indicated a significant risk for CHC (p = .002, OR = 9.498, 95% CI: 1.140-79.149). We observed significant interactions among HLA-A, -B,C, TAP1, and TAP2 alleles, and combination analysis revealed that the combination of TAP1*01:01-TAP2*01:01-HLA-B*35:01 was only present in the control group (2.2%) and resulted in significantly increased resistance to CHC (p = .002, OR = 0.096, 95% CI: 0.012-0.759). Whereas, the combination of TAP1*01:01-TAP2*01:01-HLA-C*07:02 and TAP1*03:01-TAP2*01:01-HLA-C*01:02 increased the susceptibility to CHC significantly (p = .001, OR = 2.016, 95% CI: 1.309-3.106 and p = .002, OR = 8.070, 95% CI: 1.018-63.997, respectively). Our results indicated that TAP and HLA-I may exert a combined effect on CHC susceptibility in the Chinese Han population.
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Affiliation(s)
- Yufen Tao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, China
| | - Xue Han
- Department of Immunogenetics, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China
| | - Nannan Liu
- Department of Immunogenetics, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China
| | - Lei Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, China
| | - Li Shi
- Department of Immunogenetics, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China
| | - Shuyuan Liu
- Department of Immunogenetics, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China
| | - Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming, China
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Miri HH, Fazeli P, Ali-Hassanzadeh M, Bemani P, Kabelitz D, Kalantar K. Correlation between IL-28 polymorphism and spontaneous clearance in HCV patients: systematic review and meta-analysis. Arch Virol 2021; 166:2469-2478. [PMID: 34216268 DOI: 10.1007/s00705-021-05141-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/29/2021] [Indexed: 10/20/2022]
Abstract
Hepatitis C virus (HCV) is a serious global health issue. Nearly 20% of HCV patients spontaneously clear the virus. While some studies have shown an association of spontaneous clearance (SC) of the virus with interleukin (IL) 28B single-nucleotide polymorphisms (SNPs), others did not show such a relationship. Thus, the purpose of the present study was to investigate the association of IL28B polymorphisms (12979860 SNP) with SC of HCV infection. Upon initial screening of the databases, a total of 545 articles were retrieved, of which 22 studies that met predefined eligibility criteria were entered into the meta-analysis. Odds ratios (ORs) with confidence intervals (95% CI), heterogeneity, publication bias, and sensitivity analysis were assessed. According to the meta-analysis results, a significant association was observed between the rs12979860 SNP and SC of HCV infection. The results indicated that the ORs of SC from hepatitis C virus infection were 2.75 times higher in those with cytokine gene polymorphisms (95% CI, 2.23 to 3.38). Moreover, it was found that the prevalence of rs12979860 CC was 0.33 with 95 CI 0.28-0.38 in genotype 1 and was 0.40 with 95 CI 0.34-0.47 in other genotypes. Our meta-analysis results suggest that IL28B rs12979860 CC is a strong predictor for SC of hepatitis C infection in PEG IFN-a/RBV-treated patients.
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Affiliation(s)
- Hamid Heidarian Miri
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Pooria Fazeli
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, 7134845794, Shiraz, Iran
| | - Mohammad Ali-Hassanzadeh
- Department of Immunology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Peyman Bemani
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Kurosh Kalantar
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, 7134845794, Shiraz, Iran.
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Impact of IL10, MTP, SOD2, and APOE Gene Polymorphisms on the Severity of Liver Fibrosis Induced by HCV Genotype 4. Viruses 2021; 13:v13040714. [PMID: 33924242 PMCID: PMC8074775 DOI: 10.3390/v13040714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/11/2021] [Accepted: 04/14/2021] [Indexed: 12/13/2022] Open
Abstract
Complications of hepatitis C virus (HCV) chronic infection cause ~400,000 deaths worldwide annually. One complication, liver fibrosis, is influenced by host genetic factors. Genes influencing fibrosis include immune, metabolic, oxidative stress, and viral entry genes, such as interleukin 10 (IL10), microsomal triglyceride-transfer protein (MTP), superoxide dismutase-2 (SOD2), and apolipoprotein E (APOE)-encoding genes, respectively. Thus, correlating variations in these genes with HCV-induced fibrosis represents an attractive biomarker for the prognosis of fibrosis severity in chronically infected patients. Here, we aimed to test whether polymorphisms in IL10, MTP, SOD2, and APOE genes correlated with the severity of fibrosis induced by HCV genotype 4 (HCV-gt4) in a cohort of chronically infected Egyptian patients. Our results demonstrate a significant association between the severity of fibrosis and specific SNPs in IL-10, SOD2, and ApoE-encoding genes. Haplotype-combination analysis for IL10, MTP, SOD2, and APOE showed statistically significant associations between specific haplotype combinations and fibrosis severity. Identifying biomarkers correlating with the severity of HCV-gt4-induced fibrosis would significantly impact precision prophylaxis and treatment of patients at risk.
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Castellote J, Gea F, Morano LE, Morillas RM, Pineda JA, Vergara M, Buti M. Factors influencing hepatitis C cure in the era of direct-acting antivirals. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 42 Suppl 1:1-7. [PMID: 32560767 DOI: 10.1016/s0210-5705(20)30181-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Direct-acting antiviral agents are highly potent drugs with a strong genetic barrier. Consequently, the factors influencing hepatitis C cure have been reduced and have progressively lost importance. Host factors, such as the presence of cirrhosis, race, and treatment adherence, influence sustained viral response. Adherence, together with treatment errors and drug interactions, are also important, especially in older patients. Viral factors, such as viral load, genotype, and the presence of baseline resistances affect the response rate but their influence can be minimised by using pan-genotypic regimens. Treatment simplification and the high efficacy of new antiviral treatments will allow treatment universalisation and will hopefully enable elimination of the infection in the next few decades. Supplement information: This article is part of a supplement entitled "The value of simplicity in hepatitis C treatment", which is sponsored by Gilead. © 2019 Elsevier España, S.L.U. All rights reserved.
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Affiliation(s)
- José Castellote
- Servicio de Aparato Digestivo, Hospital Universitari de Bellvitge, IDIBELL, L'Hospitalet de Llobregat, Barcelona, España.; Universitat de Barcelona, Barcelona, España.
| | - Francisco Gea
- Unidad de Sistema Digestivo, Hospital Universitario Ramón y Cajal, Madrid, España
| | - Luis Enrique Morano
- Unidad de Patologías Infecciosas, Hospital Universitario Álvaro Cunqueiro, Vigo, Pontevedra, España
| | - Rosa M Morillas
- Servicio de Aparato Digestivo, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, España; CIBEREHD, Instituto Carlos III, Madrid, España
| | - Juan Antonio Pineda
- Unidad de Enfermedades Infecciosas y Microbiología, Hospital Nuestra Señora de Valme, Sevilla, España
| | - Mercedes Vergara
- CIBEREHD, Instituto Carlos III, Madrid, España; Unidad de Hepatología, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Sabadell, Barcelona, España
| | - María Buti
- Unidad de Hepatología, Hospital General Universitario Vall d'Hebron, Barcelona, España
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Ali Q, Kalam I, Ullah S, Jamal A, Imran M, Ullah S, Iqbal K, Waqar AB. Predictive value of IL-28B rs12979860 variants for peg-IFN, sofosbuvir plus ribavirin treatment of HCV infection in Pakistani population. Per Med 2018; 15:503-510. [PMID: 30383478 DOI: 10.2217/pme-2018-0012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIM The correlation of IL28-B genetic variants (rs12979860) with combinational therapy (peg-interferon, sofosbuvir plus ribavirin) of hepatitis C virus infection were studied in 154 chronic hepatitis C patients. METHODS & RESULTS The sustained virological response for efficient antiviral regimen was achieved in 75.32% treated individuals. Three genotypes of rs12979860 (CC, CT and TT) were compared both in sustained virological response and nonresponders groups (p = 0.25, p ≤ 0.001, p = 0.10, respectively). CT genotype demonstrated a significant correlation (p ≤ 0.001) in both groups with higher positive predictive value (81.55%). CONCLUSION IL28 polymorphism and positive predictive value may be considered as the markers for the evaluation of the effectiveness of the treatment regimen. Further clinical trials are recommended to verify the role of IL28-B in hepatitis C virus treatment.
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Affiliation(s)
- Qaisar Ali
- Department of Medical Laboratory Sciences, Faculty of Health Allied Sciences Imperial College of Business Studies, Lahore, Pakistan
| | - Irfan Kalam
- Department of Medical Laboratory Sciences, Faculty of Health Allied Sciences Imperial College of Business Studies, Lahore, Pakistan
| | - Sajjad Ullah
- Department of Medical Laboratory Sciences, Faculty of Health Allied Sciences Imperial College of Business Studies, Lahore, Pakistan
| | - Arshad Jamal
- Department of Medical Laboratory Sciences, Faculty of Health Allied Sciences Imperial College of Business Studies, Lahore, Pakistan
| | - Muhammad Imran
- Department of Microbiology, University of Health Sciences, Lahore, Pakistan
| | | | - Khurshid Iqbal
- Department of Medical Laboratory Sciences, Faculty of Health Allied Sciences Imperial College of Business Studies, Lahore, Pakistan
| | - Ahmed B Waqar
- Department of Medical Laboratory Sciences, Faculty of Health Allied Sciences Imperial College of Business Studies, Lahore, Pakistan
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Does adaptation to vertebrate codon usage relate to flavivirus emergence potential? PLoS One 2018; 13:e0191652. [PMID: 29385205 PMCID: PMC5792106 DOI: 10.1371/journal.pone.0191652] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 01/09/2018] [Indexed: 12/30/2022] Open
Abstract
Codon adaptation index (CAI) is a measure of synonymous codon usage biases given a usage reference. Through mutation, selection, and drift, viruses can optimize their replication efficiency and produce more offspring, which could increase the chance of secondary transmission. To evaluate how higher CAI towards the host has been associated with higher viral titers, we explored temporal trends of several historic and extensively sequenced zoonotic flaviviruses and relationships within the genus itself. To showcase evolutionary and epidemiological relationships associated with silent, adaptive synonymous changes of viruses, we used codon usage tables from human housekeeping and antiviral immune genes, as well as tables from arthropod vectors and vertebrate species involved in the flavivirus maintenance cycle. We argue that temporal trends of CAI changes could lead to a better understanding of zoonotic emergences, evolutionary dynamics, and host adaptation. CAI appears to help illustrate historically relevant trends of well-characterized viruses, in different viral species and genetic diversity within a single species. CAI can be a useful tool together with in vivo and in vitro kinetics, phylodynamics, and additional functional genomics studies to better understand species trafficking and viral emergence in a new host.
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A Biomolecular Network Driven Proteinic Interaction in HCV Clearance. Cell Biochem Biophys 2018; 76:161-172. [PMID: 29313175 DOI: 10.1007/s12013-017-0837-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 12/26/2017] [Indexed: 12/20/2022]
Abstract
Hepatitis C virus infection causes chronic liver disease that leads to cancer-related mortality. Presently around 30% of the HCV (infected) affected population get rid of the infection through spontaneous disease clearance. This phenomenon is conducted by a set of reported immune candidate genes. Hence, this study focuses only on these immune-response related genes with aid of network approach, where the idea is to disseminate the network for better understanding of key functional genes and their transcription control activity. Based on the network analysis the IFNG, TNF, IFNB1, STAT1, NFKB1, STAT3, SOCS1, and MYD88 genes are prioritized as hub genes along with their common transcription factors (TFs), IRF9, NFKB1, and STAT1. The dinucleotide frequency of TF binding elements indicated GG-rich motifs in these regulatory elements. On the other hand, gene enrichment report suggests the regulation of response to interferon gamma signaling pathway, which plays central role in the spontaneous HCV clearance. Therefore, our study tends to prioritize the genes, TFs, and their regulatory pathway towards HCV clearance. Even so, the resultant hub genes and their TFs and TF binding elements could be crucial in underscoring the clearance activity in specific populations.
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Zhang M, Gu J, Zhang C. Hepatitis B virus X protein binding to hepsin promotes C3 production by inducing IL-6 secretion from hepatocytes. Oncotarget 2016; 7:7780-800. [PMID: 26760961 PMCID: PMC4884954 DOI: 10.18632/oncotarget.6846] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 01/01/2016] [Indexed: 12/19/2022] Open
Abstract
Hepatitis B virus (HBV) X protein (HBx) is an important effector for HBV-associated pathogenesis. In this study, we identified hepsin as an HBx-interacting protein and investigated the effects of hepsin on HBx-mediated complement component 3 (C3) secretion in hepatocytes. In vivo and in vitro binding between HBx and hepsin was confirmed by co-immunoprecipitation and Glutathione S-transferase pull-down assays. HBx synergized with hepsin to promote C3 production by potentiating interleukin-6 (IL-6) secretion. Knockdown of endogenous hepsin attenuated C3 and IL-6 secretion induced by HBx in hepatic cells. In addition, levels of hepsin protein correlated positively with C3 expression in human non-tumor liver tissues. Further exploration revealed that HBx and hepsin increased C3 promoter activity by up-regulating the expression and phosphorylation of the transcription factor CAAT/enhancer binding protein beta (C/EBP-β), which binds to the IL-6/IL-1 response element in the C3 promoter. HBx and hepsin synergistically enhanced IL-6 mRNA levels and promoter activity by increasing the nuclear translocation of nuclear factor kappaB (NF-κB). Our findings show for the first time that binding between HBx and hepsin promotes C3 production by inducing IL-6 secretion in hepatocytes.
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Affiliation(s)
- Mingming Zhang
- Department of Biochemistry and Molecular Biology, Gene Research Center, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Jianxin Gu
- Department of Biochemistry and Molecular Biology, Gene Research Center, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Chunyi Zhang
- Department of Biochemistry and Molecular Biology, Gene Research Center, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
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Singh P, Dass JFP. A multifaceted computational report on the variants effect on KIR2DL3 and IFNL3 candidate gene in HCV clearance. Mol Biol Rep 2016; 43:1101-17. [PMID: 27461217 DOI: 10.1007/s11033-016-4044-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 07/14/2016] [Indexed: 12/15/2022]
Abstract
HCV infection causes acute and chronic liver diseases including, cirrhosis and hepatocellular carcinoma. Following HCV infection, spontaneous clearance occurs in approximately 20 % of the population dependant upon HCV genotype. In this study, functional and non-functional variant analysis was executed for the classical and the latest HCV clearance candidate genes namely, KIR2DL3 and IFNL3. Initially, the functional effects of non-synonymous SNPs were assigned on exposing to homology based tools, SIFT, PolyPhen-2 and PROVEAN. Further, UTR and splice sites variants were scanned for the gene expression and regulation changes. Subsequently, the haplotype and CNV were also identified. The mutation H77Y of KIR2DL3 and R157Q, H156Y, S63L, R157W, F179V, H128R, T101M, R180C, and F176I of IFNL3 results in conservation, RMSD, total energy, stability, and secondary structures revealed a negative impact on the structural fitness. UTRscan and the splice site result indicate functional change, which may affect gene regulation and expression. The graphical display of selected population shows alleles like rs270779, rs2296370, rs10423751, rs12982559, rs9797797, and rs35987710 of KIR2DL3 and rs12972991, rs12980275, rs4803217, rs8109886, and rs8099917 of IFNL3 are in high LD with a measure of [Formula: see text] broadcasting its protective effect in HCV clearance. Similarly, CNV report suggests major DNA fragment loss that could have a profound impact on the gene expression affecting the overall phenotype. This roundup report specifies the effect of NK cell receptor, KIR2DL3 and IFNL3 variants that can have a better prospect in GWAS and immunogenetic studies leading to better understanding of HCV clearance and progression.
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Affiliation(s)
- Pratichi Singh
- Bioinformatics Division, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - J Febin Prabhu Dass
- Bioinformatics Division, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, 632014, India.
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Bader El Din NG, Farouk S, El-Shenawy R, Ibrahim MK, Dawood RM, Elhady MM, Salem AM, Zayed N, Khairy A, El Awady MK. Tumor necrosis factor-α -G308A polymorphism is associated with liver pathological changes in hepatitis C virus patients. World J Gastroenterol 2016; 22:7767-7777. [PMID: 27678360 PMCID: PMC5016377 DOI: 10.3748/wjg.v22.i34.7767] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/05/2016] [Accepted: 08/01/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the association of tumor necrosis factor alpha (TNFα) -G308A polymorphism with different liver pathological changes in treatment-naïve Egyptian patients infected with hepatitis C virus (HCV) genotype 4.
METHODS This study included 180 subjects, composed of 120 treatment-naïve chronic HCV patients with different fibrosis grades (F0-F4) and 60 healthy controls. The TNFα -G308A region was amplified by PCR and the different genotypes were detected by restriction fragment length polymorphism analysis. The TNFα protein was detected by enzyme-linked immunosorbent assay. The influence of different TNFα -G308A genotypes on TNFα expression and liver disease progression were statistically analyzed. The OR and 95%CI were calculated to assess the relative risk confidence.
RESULTS Current data showed that the TNFα -G308A SNP frequency was significantly different between controls and HCV infected patients (P = 0.001). Both the AA genotype and A allele were significantly higher in late fibrosis patients (F2-F4, n = 60) than in early fibrosis patients (F0-F1, n = 60) (P = 0.05, 0.04 respectively). Moreover, the GA or AA genotypes increased the TNFα serum level greater than the GG genotype (P = 0.002). The results showed a clear association between severe liver pathological conditions (inflammation, steatosis and fibrosis) and (GA + AA) genotypes (P = 0.035, 0.03, 0.04 respectively). The stepwise logistic regression analysis showed that the TNFα genotypes (GA + AA) were significantly associated with liver inflammation (OR = 3.776, 95%CI: 1.399-10.194, P = 0.009), severe steatosis (OR = 4.49, 95%CI: 1.441-14.0, P = 0.010) and fibrosis progression (OR = 2.84, 95%CI: 1.080-7.472, P = 0.034). Also, the A allele was an independent risk factor for liver inflammation (P = 0.003), steatosis (P = 0.003) and fibrosis (P = 0.014).
CONCLUSION TNFα SNP at nucleotide -308 represents an important genetic marker that can be used for the prognosis of different liver pathological changes in HCV infected patients
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The Effect of IL28B Gene Polymorphism on Treatment Response in Iranian Patients with Hepatitis C Virus Infection. Jundishapur J Microbiol 2016. [DOI: 10.5812/jjm.31501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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12
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Daneshvar M, Nikbin M, Talebi S, Javadi F, Aghasadeghi MR, Mahmazi S, Sadat SM. Role of IL28-B Polymorphism (rs12979860) on Sustained Virological Response to Pegylated Interferon/Ribavirin in Iranian Patients With Chronic Hepatitis C. IRANIAN RED CRESCENT MEDICAL JOURNAL 2016; 18:e28566. [PMID: 28144454 PMCID: PMC5253204 DOI: 10.5812/ircmj.28566] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 07/12/2015] [Accepted: 08/09/2015] [Indexed: 12/13/2022]
Abstract
Background The current medical treatment for hepatitis C virus (HCV) infection is pegylated interferon plus ribavirin, but just 50% of genotype 1 HCV patients and about 80% of HCV genotype 3 patients are treated completely. Recently, the rs12979860 C/T polymorphism, which is located 3 kb upstream of the IL28b gene that codes IFNλ3, shows a powerful association in response to the treatment in HCV patients. Objectives The aim of this study was to evaluate the relationship between IL28b single nucleotide polymorphism (SNP) and treatment outcomes among chronic HCV patients in Iran. Patients and Methods In this cross-sectional study, 108 blood samples were collected from chronic patients in Iran; 50 unrelated healthy subject samples were also collected. Genomic DNA was extracted, and rs12979860 SNP was done by PCR-RFLP. Finally, products were detected on 12% polyacrylamide gel electrophoresis. Results The analysis of data for C/T SNP showed that the CC genotype is more common in the control group than in the group of patients. In contrast, the frequency of TT as a mutant genotype is more frequent in patients than in uninfected people. In addition, results showed a statistically significant relationship between CC, CT, and TT genotypes in sensitive and resistant groups (P value: < 0.001, Or: 0.003, CI: 0-0.047). This relationship was also examined in terms of allele frequency, to determine whether the possibility of resistance to treatment in patients with T allele is more than in patients who carry C allele (P value: < 0.001). Conclusions These results showed a significant effect between rs12979860 SNP and sustained virological response (SVR) rate in Iranian patients with chronic HCV. To decrease the cost of long treatments and to prevent severe side effects, determining this polymorphism at the beginning of treatment can be very helpful for patients and physicians.
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Affiliation(s)
- Mahtab Daneshvar
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, IR Iran
- Genetics Department, Zanjan Branch, Islamic Azad University, Zanjan, IR Iran
| | | | - Solmaz Talebi
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Foozieh Javadi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, IR Iran
| | | | - Sanaz Mahmazi
- Genetics Department, Zanjan Branch, Islamic Azad University, Zanjan, IR Iran
| | - Seyed Mehdi Sadat
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, IR Iran
- Corresponding Author: Seyed Mehdi Sadat, No:69, Pasteur Ave, Department of Hepatitis and AIDS, Pasteur Institute of Iran, P. O. Box: 1316943551, Tehran, IR Iran. Tel/Fax: +98-2166969291, E-mail:
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Quicke KM, Bowen JR, Johnson EL, McDonald CE, Ma H, O'Neal JT, Rajakumar A, Wrammert J, Rimawi BH, Pulendran B, Schinazi RF, Chakraborty R, Suthar MS. Zika Virus Infects Human Placental Macrophages. Cell Host Microbe 2016; 20:83-90. [PMID: 27247001 DOI: 10.1016/j.chom.2016.05.015] [Citation(s) in RCA: 351] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 05/16/2016] [Accepted: 05/19/2016] [Indexed: 12/28/2022]
Abstract
The recent Zika virus (ZIKV) outbreak in Brazil has been directly linked to increased cases of microcephaly in newborns. Current evidence indicates that ZIKV is transmitted vertically from mother to fetus. However, the mechanism of intrauterine transmission and the cell types involved remain unknown. We demonstrate that the contemporary ZIKV strain PRVABC59 (PR 2015) infects and replicates in primary human placental macrophages, called Hofbauer cells, and to a lesser extent in cytotrophoblasts, isolated from villous tissue of full-term placentae. Viral replication coincides with induction of type I interferon (IFN), pro-inflammatory cytokines, and antiviral gene expression, but with minimal cell death. Our results suggest a mechanism for intrauterine transmission in which ZIKV gains access to the fetal compartment by directly infecting placental cells and disrupting the placental barrier.
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Affiliation(s)
- Kendra M Quicke
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA
| | - James R Bowen
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA
| | - Erica L Johnson
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Circe E McDonald
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA
| | - Huailiang Ma
- Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA; Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Justin T O'Neal
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA
| | - Augustine Rajakumar
- Department of Gynecology and Obstetrics, Division of Maternal Fetal Medicine and Reproductive Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30329, USA
| | - Jens Wrammert
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA
| | - Bassam H Rimawi
- Department of Gynecology and Obstetrics, Division of Maternal Fetal Medicine and Reproductive Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30329, USA
| | - Bali Pulendran
- Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA; Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Raymond F Schinazi
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Center for AIDS Research, Laboratory of Biochemical Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Rana Chakraborty
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Mehul S Suthar
- Department of Pediatrics, Division of Infectious Diseases, Emory University School of Medicine, Atlanta, GA 30322, USA; Emory Vaccine Center, Yerkes National Primate Research Center, Atlanta, GA 30329, USA.
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14
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Grandi T, Silva CMDD, Amaral KM, Picon PD, Costi C, Fré NND, Fiegenbaum M, Gregianini TS, Niel C, Rossetti MLR. Tumour necrosis factor -308 and -238 promoter polymorphisms are predictors of a null virological response in the treatment of Brazilian hepatitis C patients. Mem Inst Oswaldo Cruz 2016; 109:345-51. [PMID: 24789557 PMCID: PMC4131788 DOI: 10.1590/0074-0276130372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 12/17/2013] [Indexed: 02/07/2023] Open
Abstract
Certain host single nucleotide polymorphisms (SNPs) affect the likelihood of a
sustained virological response (SVR) to treatment in subjects infected with hepatitis
C virus (HCV). SNPs in the promoters of interleukin (IL)-10 (-1082 A/G, rs1800896),
myxovirus resistance protein 1 (-123 C/A, rs17000900 and -88 G/T, rs2071430) and
tumour necrosis factor (TNF) (-308 G/A, rs1800629 and -238 G/A, rs361525) genes and
the outcome of PEGylated α-interferon plus ribavirin therapy were investigated. This
analysis was performed in 114 Brazilian, HCV genotype 1-infected patients who had a
SVR and in 85 non-responders and 64 relapsers. A significantly increased risk of
having a null virological response was observed in patients carrying at least one A
allele at positions -308 [odds ratios (OR) = 2.58, 95% confidence intervals (CI) =
1.44-4.63, p = 0.001] or -238 (OR = 7.33, 95% CI = 3.59-14.93, p < 0.001) in the
TNF promoter. The risk of relapsing was also elevated (-308: OR = 2.87, 95% CI =
1.51-5.44, p = 0.001; -238: OR = 4.20, 95% CI = 1.93-9.10, p < 0.001). Multiple
logistic regression of TNF diplotypes showed that patients with at least two copies
of the A allele had an even higher risk of having a null virological response (OR =
16.43, 95% CI = 5.70-47.34, p < 0.001) or relapsing (OR = 6.71, 95% CI =
2.18-20.66, p = 0.001). No statistically significant association was found between
the other SNPs under study and anti-HCV therapy response.
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Affiliation(s)
- Tarciana Grandi
- Centro de Desenvolvimento Científico e Tecnológico, Fundação Estadual de Produção e Pesquisa em Saúde, Porto Alegre, RS, Brasil
| | | | - Karine Medeiros Amaral
- Centro de Aplicação e Monitorização de Medicamentos Injetáveis, Porto Alegre, RS, Brasil
| | - Paulo Dornelles Picon
- Centro de Aplicação e Monitorização de Medicamentos Injetáveis, Porto Alegre, RS, Brasil
| | - Cintia Costi
- Centro de Desenvolvimento Científico e Tecnológico, Fundação Estadual de Produção e Pesquisa em Saúde, Porto Alegre, RS, Brasil
| | - Nicole Nascimento da Fré
- Centro de Desenvolvimento Científico e Tecnológico, Fundação Estadual de Produção e Pesquisa em Saúde, Porto Alegre, RS, Brasil
| | | | - Tatiana Schäffer Gregianini
- Laboratório de Vírus Respiratórios, Fundação Estadual de Produção e Pesquisa em Saúde, Porto Alegre, RS, Brasil
| | - Christian Niel
- Laboratório de Virologia Molecular, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Maria Lucia Rosa Rossetti
- Centro de Desenvolvimento Científico e Tecnológico, Fundação Estadual de Produção e Pesquisa em Saúde, Porto Alegre, RS, Brasil
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15
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Tabll AA, Kodous MA, Abbas AT, Omran MM, Elsayed EH. Association between serum aminotransferase enzymes–lipid profile ratio and spontaneous HCV clearance in blood donors. Future Virol 2016. [DOI: 10.2217/fvl.15.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Aim: Study the role of the aminotransferase lipid profile ratio in the spontaneous clearance of HCV. Materials & methods: Blood samples from 68 blood donors were classified into three groups: negative for HCV antibodies (control group I), positive anti-HCV with negative HCV-RNA, (group II) and positive anti-HCV with positive HCV-RNA (group III). Results: A significant linear correlation was observed between the HCV-RNA levels and aminotransferase enzymes–lipid profile ratio as indicated by the values of (AST)/triglycerides (r = 0.577; p = 0.003) and ALT/triglycerides (r = 0.508; p < 0.009). AST/high-density lipoprotein had an area under the receiver operating characteristic curve of 0.72 for discriminating between nonspontaneous HCV-clearance from spontaneous HCV-clearance patients. Conclusion: AST/high-density lipoprotein can be used for the prediction of HCV clearance without treatment.
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Affiliation(s)
- Ashraf A Tabll
- Microbial Biotechnology Department, National Research Centre, Giza, Egypt
| | - Marwa A Kodous
- Chemistry Department, Faculty of Science, Port-Said University, Port-Said, Egypt
| | - Ayman T Abbas
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdul-Aziz University, Jeddah, Saudi Arabia
- Biotechnology Research Laboratories, Gastroenterology Surgery Center, Mansoura University, Mansoura, Egypt
| | - Mohamed M Omran
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Elsherbeny H Elsayed
- Chemistry Department, Faculty of Science, Port-Said University, Port-Said, Egypt
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16
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A novel polymorphism near HLA class II region is associated with spontaneous clearance of HCV and response to interferon treatment in Chinese patients. J Hum Genet 2015; 61:301-5. [PMID: 26632884 DOI: 10.1038/jhg.2015.145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/03/2015] [Accepted: 11/04/2015] [Indexed: 01/08/2023]
Abstract
A recent genome-wide association study (GWAS) has identified the single-nucleotide polymorphism (SNP) rs4273729 in a 100-kbp region comprising human leukocyte antigens (HLAs) class II genes as an important predictor of hepatitis C virus (HCV) clearance in European and African populations. This study was to determine whether this polymorphism is also associated with spontaneous HCV clearance as well as response to interferon treatment in Chinese patients. Thus, 686 chronic HCV carriers, 432 individuals with spontaneous viral clearance and 243 patients with pegylated interferon-α and ribavirin (PEG IFN-α/RBV) treatment were genotyped. The rs4273729 GG genotype was strongly associated with spontaneous HCV clearance as well as better IFN/RBV treatment response compared with the GC/CC genotypes in Chinese Han population (additive model: odds ratio (OR)=0.62, 95% confidence interval (95% CI)=0.51-0.76; OR=0.58, 95% CI=0.38-0.88, respectively). Rs4273729, rs12980275, baseline HCV RNA and platelet level were independent predictors for sustained virological response (SVR). The area under the receiver-operating characteristic curve (AUC) was 0.578 when including rs4273729 alone, but the prediction value was improved significantly (AUC=0.733) when further including rs12980275, baseline viral load and baseline platelet level. In conclusion, the genetic variation of rs4273729 is associated with clearance of HCV in both the natural course and the treatment process in Chinese Han population.
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17
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Carapito R, Poustchi H, Kwemou M, Untrau M, Sharifi AH, Merat S, Haj-Sheykholeslami A, Jabbari H, Esmaili S, Michel S, Toussaint J, Le Gentil M, Ansari-Moghaddam A, Radosavljevic M, Etemadi A, Georgel P, Malekzadeh R, Bahram S. Polymorphisms in EGFR and IL28B are associated with spontaneous clearance in an HCV-infected Iranian population. Genes Immun 2015; 16:514-8. [PMID: 26378651 DOI: 10.1038/gene.2015.38] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 06/27/2015] [Accepted: 07/24/2015] [Indexed: 01/16/2023]
Abstract
Although most hepatitis C virus (HCV)-infected individuals develop chronic infection, about 25% of them are able to clear the virus spontaneously without any therapeutic intervention. The aim of the present study was to identify genes associated with spontaneous HCV clearance in a population of Iranian patients. We genotyped 110 single-nucleotide polymorphisms (SNPs) in 59 selected--candidate--genes in a cohort of 107 HCV-infected participants who spontaneously cleared the infection and 176 participants whose infection persisted. Three out of the 110 SNPs were found to be associated with HCV outcome (P-values<0.03). rs11506105 in EGFR (epidermal growth factor receptor gene), and rs11881222 and rs12979860 in IL28B (interferon-λ3 gene). Multivariate logistic regression of the three markers showed that the A/A genotypes in both rs11506105 (EFGR) and rs11881222 (IL28B), and the C/C genotype in rs12979860 (IL28B) are associated with HCV clearance (recessive model: odds ratio (OR)=2.06, 95% confidence interval (95% CI)=1.09-3.88, P=0.025; OR=2.09, 95% CI=1.23-3.60, P=0.007; and OR=1.95, 95% CI=1.15-3.35, P=0.014 for rs11506105, rs12979860 and rs11881222, respectively). In conclusion, EGFR and IL28B SNPs are strong independent predictive markers of spontaneous viral clearance.
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Affiliation(s)
- R Carapito
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - H Poustchi
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - M Kwemou
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - M Untrau
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - A H Sharifi
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S Merat
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Digestive Disease Research Center, Digestive Disease Research Institute, Tehran University of Medical Sciences Shariati Hospital, Tehran, Iran
| | - A Haj-Sheykholeslami
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - H Jabbari
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S Esmaili
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - S Michel
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - J Toussaint
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - M Le Gentil
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - A Ansari-Moghaddam
- Health Promotion Research Center, Zahedan University of Medical Science, Zahedan, Iran
| | - M Radosavljevic
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - A Etemadi
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - P Georgel
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - R Malekzadeh
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Digestive Disease Research Center, Digestive Disease Research Institute, Tehran University of Medical Sciences Shariati Hospital, Tehran, Iran
| | - S Bahram
- Plateforme GENOMAX, Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, LabEx Transplantex, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
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18
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Al-Mohaya MA, Al-Harthi F, Arfin M, Al-Asmari A. TNF-α, TNF-β and IL-10 gene polymorphism and association with oral lichen planus risk in Saudi patients. J Appl Oral Sci 2015. [PMID: 26221924 PMCID: PMC4510664 DOI: 10.1590/1678-775720150075] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Objectives Oral lichen planus (OLP) is a chronic inflammatory oral mucosal disease. Cytokines play an important role in the pathogenesis and disease progression of OLP. Various reports have implicated cytokine gene polymorphisms in susceptibility to develop some immune mediated conditions including OLP. The purpose of this study was to investigate the association of tumor necrosis factor (TNF)-α, TNF-β and interleukin (IL)-10 gene polymorphisms with the OLP risk. Material and Methods Forty two unrelated patients with OLP and 211 healthy volunteers were genotyped for TNF-α (-308 G/A), TNF-β (+252A/G), IL-10 (-1082G/A), IL-10 (-819C/T), and IL-10 (-592C/A) polymorphisms. Results The frequencies of allele A and genotype GA of TNF-α (-308G/A) were significantly higher while allele G and GG genotypes were lower in OLP patients as compared to the controls (P<0.001). The frequency of GA genotype of TNF-β (+252A/G) was significantly higher in patients than in controls while the AA genotype was completely absent in OLP patients. These results indicated that allele A and genotype GA of TNF-α (-308G/A) as well as the GA genotype of TNF-β (+252A/G) polymorphisms are associated with OLP risk. The frequencies of alleles and genotypes of -1082G/A, -819C/T and -592C/A polymorphisms in IL-10 gene did not differ significantly between OLP patients and controls (P>0.05). However, haplotype ATA extracted from 1082G/A, -819C/T, -592C/A polymorphisms of IL-10 were more prevalent in OLP patients when compared to controls indicating its possible association with OLP susceptibility. Conclusion It is concluded that TNF-α (-308G/A), TNF-β (+252A/G) and IL-10 (-1082G/A, -819C/T and -592C/A) polymorphisms are associated with the susceptibility of OLP, thus giving additional support for the genetic basis of this disease.
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Affiliation(s)
- Maha Ali Al-Mohaya
- Department of Dentistry, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Fahad Al-Harthi
- Department of Dermatology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Misbahul Arfin
- Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
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19
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Fathy MM, Abo Taleb ME, El Hawary MS, Nabih MI, Aref WM, Makhlouf MM. Assessment of interleukin 28B genotype as a predictor of response to combined therapy with pegylated interferon plus ribavirin in HCV infected Egyptian patients. Cytokine 2015; 74:268-72. [PMID: 26003758 DOI: 10.1016/j.cyto.2015.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 04/24/2015] [Accepted: 05/03/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND AIM Single nucleotide polymorphisms (SNPs) of interleukin 28B (IL28B) gene is associated with spontaneous clearance and variable response to combined therapy with pegylated interferon (PEG-IFN) and ribavirin (RBV) in chronic hepatitis C virus (HCV) infected patients. This study aimed at assessing the value of IL28B rs8099917 gene polymorphism in predicting sustained virological response (SVR) among HCV infected Egyptian patients treated with PEG-IFN and RBV. METHODS Our study was conducted on 153 chronic HCV infected patients treated with PEG-IFN and RBV. Genotyping of rs8099917 near the IL-28B gene was performed by Real Time PCR using Taq-Man probe assay. RESULTS The overall SVR was achieved in 49.6% of patients. Patients with TT genotype showed significantly higher SVR rate than minor allele (TG/GG) carriers (74% vs. 26%, P=0.004). Logistic regression analysis revealed that TT carriers had 2.8 higher chance for SVR achievement than G allele carriers TG/GG (OR=2.8, 95% CI=1.4-5.6, P=0.004). Younger age, male sex and low activity grading were significant predictors of SVR (P=0.003, P=<0.001 and P<0.001 respectively). High pretreatment AST levels and advanced liver fibrosis were negative predictors of SVR (P=0.04 and P<0.001 respectively). CONCLUSION IL28B genotype is a significant pre-treatment predictor of response to PEG-IFN/RBV in HCV infected Egyptian patients.
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Affiliation(s)
- Mona M Fathy
- Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Mohamed E Abo Taleb
- Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed S El Hawary
- Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mona I Nabih
- Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Wael M Aref
- Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Manal M Makhlouf
- Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
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20
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Shaikh N, Waryah AM, Devrajani BR, Rajput MI, Hayat AS, Shaikh S. IL28B rs12980275 polymorphism shows association with response to treatment in Pakistani patients with chronic hepatitis C. J Med Virol 2015; 87:814-20. [PMID: 25652367 DOI: 10.1002/jmv.24100] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2014] [Indexed: 12/13/2022]
Abstract
The aim of this study was to describe the genetic characteristics of Pakistani patients infected with hepatitis C virus (HCV) in relation to IL28B polymorphisms and its association to interferon and ribavirin treatment response. A total of 220 patients, infected with HCV were enrolled, out of which 100 were responders and 120 were nonresponders. The whole blood samples were collected to extract viral RNA and genomic DNA. PCR following the restriction fragment length polymorphism method was used to genotype IL28B rs12979860, rs8099917, and rs12980275 polymorphisms. Liver biopsies and HCV genotyping were performed in nonresponder patients. The rs12980275 AA genotype exhibited significant correlation to treatment response and was found in 62% of the responders and 37.5% of nonresponder patients, whereas AG genotype was noticed frequently in the nonresponder group (P < 0.0001). The rs12979860 CT and rs8099917 TT genotypes were found in 74% and 66% of the responders as compared to 58.3% and 50.8% in nonresponder patients (P = 0.001 and P = 0.032) respectively. HCV 3a genotypes were detected in 50.8% of the nonresponder patients. No significant association was detected between liver biopsy findings and IL28B SNPs (P > 0.05). The results showed the significant association of rs12980275 polymorphism with treatment response in HCV patients followed by rs12979860 and rs8099917. This is the first report describing the association of rs12980275 with response to HCV treatment from Pakistan. These findings may help in predicting the outcome of pegylated interferon and ribavirin treatment in HCV patients, and may reduce the side effects and cost of treatment in predicting non-responder patients.
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Affiliation(s)
- Naila Shaikh
- Molecular Biology and Genetics Department, Medical Research Center, Liaquat University of Medical and Health Sciences, Jamshoro; Department of Pathology, Liaquat University of Medical and Health Sciences, Jamshoro
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21
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da Silva NMO, Germano FN, Vidales-Braz BM, Carmo Zanella RD, dos Santos DM, Lobato R, de Martinez AMB. Polymorphisms of IL-10 gene in patients infected with HCV under antiviral treatment in southern Brazil. Cytokine 2015; 73:253-7. [PMID: 25797191 DOI: 10.1016/j.cyto.2014.12.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/23/2014] [Accepted: 12/27/2014] [Indexed: 12/20/2022]
Abstract
Interleukin-10 (IL-10) is a cytokine that plays an important role in the regulation of the immune system. Gene polymorphisms of IL-10 have been associated with the different expression levels of this cytokine. In hepatitis C virus infection, IL-10 appears to interfere with the progression of disease, viral persistence and the response to therapy. This study investigated genetic variability in the IL-10 gene promoter between patients infected with hepatitis C virus (HCV) and healthy individuals, associating the frequency of polymorphisms with different aspects of viral infection. This is a case-control study with 260 patients who were infected with HCV and 260 healthy individuals. Genotyping of the polymorphisms was performed using the technique of amplification refractory mutation system PCR (ARMS-PCR) for regions of the IL-10 gene promoter (-1082 G/A, -819 C/T, -592 C/A). The frequencies of alleles and genotypes related to polymorphisms in the IL-10 gene promoter showed a higher frequency of the G allele and genotype GG in the -1082 region between the infected group and the control group (p=0.005 and p=0.001, respectively), whereas the AA genotype was significantly more frequent in the control group. The frequencies of the haplotypes GTA and GCC were higher in the group of infected individuals, whereas the haplotype ATA was more frequent in the healthy group (p<0.006). It was also observed that the genotypes GG and AG in the region -1082 were significantly more frequent among patients infected with HCV who were in advanced stages of fibrosis and cirrhosis (p=0.042). No association was observed between polymorphisms of IL-10 and sustained virologic response (SVR).
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22
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Resistance to hepatitis C virus: potential genetic and immunological determinants. THE LANCET. INFECTIOUS DISEASES 2015; 15:451-60. [PMID: 25703062 DOI: 10.1016/s1473-3099(14)70965-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Studies of individuals who were highly exposed but seronegative (HESN) for HIV infection led to the discovery that homozygosity for the Δ32 deletion mutation in the CCR5 gene prevents viral entry into target cells, and is associated with resistance to infection. Additionally, evidence for protective immunity has been noted in some HESN groups, such as sex workers in The Gambia. Population studies of individuals at high risk for hepatitis C virus infection suggest that an HESN phenotype exists. The body of evidence, which suggests that protective immunity allows clearance of hepatitis C virus without seroconversion is growing. Furthermore, proof-of-principle evidence from in-vitro studies shows that genetic polymorphisms can confer resistance to establishment of infection. This Review discusses the possibility that genetic mutations confer resistance against hepatitis C virus, and also explores evidence for protective immunity, including via genetically programmed variations in host responses. The data generally strengthens the notion that investigations of naturally arising polymorphisms within the hepatitis C virus interactome, and genetic association studies of well characterised HESN individuals, could identify potential targets for vaccine design and inform novel therapies.
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Al-Asmary SM, Kadasah S, Arfin M, Tariq M, Al-Asmari A. Genetic Variants of Interleukin-10 Gene Promoter are Associated with Schizophrenia in Saudi Patients: A Case-Control Study. NORTH AMERICAN JOURNAL OF MEDICAL SCIENCES 2014; 6:558-65. [PMID: 25535603 PMCID: PMC4264290 DOI: 10.4103/1947-2714.145466] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND Interleukin-10 (IL-10) gene is considered as a potential candidate gene in schizophrenia association studies. The polymorphisms on IL-10 gene have been reported to be linked with susceptibility to the development of schizophrenia within consistent results. AIMS The aim of this case-control study was to examine whether the -1082A/G, -819T/C, and -592A/C polymorphisms in IL-10 gene are implicated in schizophrenia development in the Saudi population. MATERIALS AND METHODS Molecular genotyping of IL-10 gene polymorphisms was performed to analyze the genotypes and alleles distribution of three single-nucleotide polymorphisms (SNPs) in patients (n = 181) and healthy individuals as control group (n = 211). RESULTS The frequencies of GA genotype at -1082, and CC genotype at positions -592 and -819 were significantly higher in schizophrenia patients compared to healthy subjects suggesting that GA, CC, and CC genotypes are susceptible to schizophrenia. The ACC haplotype known to be associated with intermediate production of IL-10 are more prevalent in our schizophrenia patients. On the other hand, genotypes -1082 GG, -819 CT, and -592 CA of IL-10 were more prevalent in healthy controls suggesting protective effects of GA, CT, and CA genotypes against schizophrenia. There was no significant association of IL-10 polymorphisms with sex or positive or negative symptoms of schizophrenia. CONCLUSION This study indicates that the IL-10 gene polymorphisms play a significant role in the etiology of schizophrenia in Saudi Arabians patients.
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Affiliation(s)
- Saeed Mohammad Al-Asmary
- Department of Neuropsychiatry, Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Saeed Kadasah
- Department of Psychiatry, Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Misbahul Arfin
- Department of Molecular Biology and Genetics, Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Mohammad Tariq
- Department of Molecular Biology and Genetics, Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Abdulrahman Al-Asmari
- Department of Molecular Biology and Genetics, Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
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Tarragô AM, da Costa AG, Pimentel JPD, Gomes STM, Freitas FB, Lalwani P, de Araújo ARS, Victória FDS, Victória MB, Vallinoto ACR, Sadahiro A, Teixeira-Carvalho A, Martins-Filho OA, Malheiro A. Combined impact of hepatitis C virus genotype 1 and interleukin-6 and tumor necrosis factor-α polymorphisms on serum levels of pro-inflammatory cytokines in Brazilian HCV-infected patients. Hum Immunol 2014; 75:1075-83. [PMID: 25193024 DOI: 10.1016/j.humimm.2014.08.198] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 08/18/2014] [Accepted: 08/18/2014] [Indexed: 12/31/2022]
Abstract
We investigated the association between hepatitis C virus (HCV) genotypes and host cytokine gene polymorphisms and serum cytokine levels in patients with chronic hepatitis C. Serum IL-6, TNF-α, IL-2, IFN-γ, IL-4, IL-10, and IL-17A levels were measured in 67 HCV patients (68.2% genotype 1 [G1]) and 47 healthy controls. The HCV patients had higher IL-6, IL-2, IFN-γ, IL-10, and IL-17A levels than the controls. HCV G1 patients had higher IL-2 and IFN-γ levels than G2 patients. The -174IL6G>C, -308TNFαG>A, and -1082IL10A>G variants were similarly distributed in both groups. However, HCV patients with the -174IL6GC variant had higher IL-2 and IFN-γ levels than patients with the GG and CC variants. Additionally, HCV patients with the -308TNFαGG genotype had higher IL-17A levels than patients with the AG genotype, whereas patients with the -1082IL10GG variant had higher IL-6 levels than patients with the AA and AG variants. A significant proportion of HCV patients had high levels of both IL-2 and IFN-γ. The subgroup of HCV patients with the G1/IL6CG/TNFαGG association displayed the highest proportions of high producers of IL-2 and IFN-γ whereas the subgroup with the G1/TNFαGG profile showed high proportions of high producers of IL-6 and IL-17A. HCV patients with other HCV/cytokine genotype associations showed no particular cytokine profile. Our results suggest that HCV genotype G1 and IL-6 and TNF-α polymorphisms have a clinically relevant influence on serum pro-inflammatory cytokine profile (IL-2 and IFN-γ) in HCV patients.
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Affiliation(s)
- Andréa Monteiro Tarragô
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, 3000, Rodrigo Otávio Av., Manaus, AM, Brazil; Fundação de Hematologia e Hemoterapia do Amazonas - HEMOAM, 3497 Constantino Nery Av., Manaus, AM, Brazil
| | - Allyson Guimarães da Costa
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, 3000, Rodrigo Otávio Av., Manaus, AM, Brazil; Fundação de Hematologia e Hemoterapia do Amazonas - HEMOAM, 3497 Constantino Nery Av., Manaus, AM, Brazil; Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, 25 Pedro Teixeira Av., Manaus, AM, Brazil
| | - João Paulo Diniz Pimentel
- Fundação de Hematologia e Hemoterapia do Amazonas - HEMOAM, 3497 Constantino Nery Av., Manaus, AM, Brazil; Instituto Leônidas e Maria Deane - FIOCRUZ-Amazônia, 476 Terezina St., Manaus, AM, Brazil
| | | | | | - Pritesh Lalwani
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, 3000, Rodrigo Otávio Av., Manaus, AM, Brazil
| | - Ana Ruth S de Araújo
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, 25 Pedro Teixeira Av., Manaus, AM, Brazil
| | - Flamir da Silva Victória
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, 25 Pedro Teixeira Av., Manaus, AM, Brazil
| | - Marilú Barbieri Victória
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, 25 Pedro Teixeira Av., Manaus, AM, Brazil
| | | | - Aya Sadahiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, 3000, Rodrigo Otávio Av., Manaus, AM, Brazil; Instituto Nacional de Pesquisas da Amazônia - INPA, 2936 André Araújo Av., Manaus, AM, Brazil
| | - Andréa Teixeira-Carvalho
- Centro de Pesquisas René Rachou - FIOCRUZ-Minas, 1715 Augusto de Lima Av., Belo Horizonte, MG, Brazil
| | | | - Adriana Malheiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, 3000, Rodrigo Otávio Av., Manaus, AM, Brazil; Fundação de Hematologia e Hemoterapia do Amazonas - HEMOAM, 3497 Constantino Nery Av., Manaus, AM, Brazil.
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Ansaldi F, Orsi A, Sticchi L, Bruzzone B, Icardi G. Hepatitis C virus in the new era: Perspectives in epidemiology, prevention, diagnostics and predictors of response to therapy. World J Gastroenterol 2014; 20:9633-9652. [PMID: 25110404 PMCID: PMC4123355 DOI: 10.3748/wjg.v20.i29.9633] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 04/18/2014] [Accepted: 05/19/2014] [Indexed: 02/06/2023] Open
Abstract
Despite the great successes achieved in the fields of virology and diagnostics, several difficulties affect improvements in hepatitis C virus (HCV) infection control and eradication in the new era. New HCV infections still occur, especially in some of the poorest regions of the world, where HCV is endemic and long-term sequelae have a growing economic and health burden. An HCV vaccine is still no available, despite years of researches and discoveries about the natural history of infection and host-virus interactions: several HCV vaccine candidates have been developed in the last years, targeting different HCV antigens or using alternative delivery systems, but viral variability and adaption ability constitute major challenges for vaccine development. Many new antiviral drugs for HCV therapy are in preclinical or early clinical development, but different limitations affect treatment validity. Treatment predictors are important tools, as they provide some guidance for the management of therapy in patients with chronic HCV infection: in particular, the role of host genomics in HCV infection outcomes in the new era of direct-acting antivirals may evolve for new therapeutic targets, representing a chance for modulated and personalized treatment management, when also very potent therapies will be available. In the present review we discuss the most recent data about HCV epidemiology, the new perspectives for the prevention of HCV infection and the most recent evidence regarding HCV diagnosis, therapy and predictors of response to it.
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Mao XR, Zhang LT, Chen H, Xiao P, Zhang YC. Correlation between the genetic variations in interleukin 28B and chronic hepatitis C virus genotypes in the Chinese population. Mol Med Rep 2014; 10:1037-45. [PMID: 24840747 DOI: 10.3892/mmr.2014.2242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 03/05/2014] [Indexed: 12/24/2022] Open
Abstract
Genetic variations at the interleukin 28B (IL-28B) locus and chronic hepatitis C virus (HCV) genotypes are significant factors in predicting the therapeutic outcome for HCV infection. The present study aimed to determine the geographical distribution of HCV genotypes and single nucleotide polymorphisms (SNPs) associated with IL-28B in Chinese patients infected with HCV. The gene frequencies of 13 types of IL-28B SNPs and HCV genotypes were investigated in 1,014 patients infected with HCV, who were recruited from varying regions of China. The correlation between the SNPs of IL-28B, the HCV genotypes and age, gender and geographical location were investigated. The data revealed geographical differences in age, gender and HCV genotypes in the Chinese HCV patients. HCV genotype 1 was distributed extensively and had a higher incidence compared with other HCV genotypes in all regions, with the exception of South (38%) and Northwest China (45.6%). A gender differences also existed (P<0.01). The distribution of genotype 6 was lower compared with other HCV genotypes in the majority of the regions (P<0.01). In middle‑aged patients, the number of male patients was higher than the number of female patients in North and South China, which was the opposite of the results found in the other regions. There were no geographical differences in IL-28B SNPs in Chinese HCV‑infected populations. Notably, there were significant differences between HCV genotype 1 and 2 in the genotype percentages of the majority of SNPs (P<0.01). In conclusion, a geographical distribution in HCV genotypes and a correlation between HCV genotypes and IL-28B SNPs have been identified, and indicate that these variants may be associated with spontaneous and treatment-induced HCV clearance.
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Affiliation(s)
- Xiao-Rong Mao
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, Gansu, P.R. China
| | - Li-Ting Zhang
- Department of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, P.R. China
| | - Hong Chen
- Department of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, P.R. China
| | - Ping Xiao
- Department of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, P.R. China
| | - You-Cheng Zhang
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, Gansu, P.R. China
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Idrees S, Ashfaq UA, Masoud MS, Qasim M, Javed T, Ali A. Gene Expression Profiling of Immune Responsive and Fibrosis Genes in Hepatitis C Virus Infected Patients. Viral Immunol 2014; 27:250-4. [DOI: 10.1089/vim.2014.0005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Sobia Idrees
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Usman Ali Ashfaq
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Muhammad Shareef Masoud
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Muhammad Qasim
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Tariq Javed
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Asad Ali
- Medical Surgical Unit II, Jinnah Hospital, Lahore, Pakistan
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28
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Pár A, Pár G, Tornai I, Szalay F, Várszegi D, Fráter E, Papp M, Lengyel G, Fehér J, Varga M, Gervain J, Schuller J, Nemes Z, Péterfi Z, Tusnádi A, Hunyady B, Haragh A, Szinku Z, Vincze Á, Szereday L, Kisfali P, Melegh B. IL28B and IL10R -1087 polymorphisms are protective for chronic genotype 1 HCV infection and predictors of response to interferon-based therapy in an East-Central European cohort. BMC Res Notes 2014; 7:12. [PMID: 24398031 PMCID: PMC3896726 DOI: 10.1186/1756-0500-7-12] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 01/03/2014] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Previous studies have shown that single nucleotide polymorphisms (SNP) in IL28B and IL10R are associated with sustained virological response (SVR) in chronic hepatitis C patients treated with pegilated interferon plus ribavirin (P/R). The present study extends our earlier investigations on a large East-Central European cohort. The allele frequencies of IL28B and IL10R in genotype 1 HCV infection were compared with that of healthy controls for the purpose of examining the relationship between the polymorphisms and the SVR to P/R treatment. METHODS A total of 748 chronic HCV1 infected patients (365 male, 383 female; 18-82 years) and 105 voluntary blood donors as controls were enrolled. Four hundred and twenty HCV patients were treated with P/R for 24-72 weeks, out of them 195 (46.4%) achieved SVR. The IL28 rs12979860 SNP was determined using Custom Taqman SNP Genotyping Assays. The IL10R -1087 (also known as IL10R -1082 (rs1800896) promoter region SNP was determined by RT-PCR and restriction fragment length polymorphism analysis. RESULTS The IL28B CC genotype occurred with lower frequency in HCV patients than in controls (26.1% vs 51.4%, p<0.001). P/R treated patients with the IL28B CC genotype achieved higher SVR rate, as compared to patients with CT (58.6% vs 40.8%, p=0.002). The prevalence of IL10R -1087 GG genotype was lower in patients than in controls (31.8 % vs 52.2%, p<0.001). Among patients achieving SVR, the IL10R -1087 GG genotype occurred with higher frequency than the AA (32.0% vs 17.4%, p=0.013). The IL28B T allele plus IL10R A allele combination was found with higher prevalence in patients than in controls (52% vs 20.7%, p<0.001). The IL28B CC plus IL10R A allele combination occurred with higher frequency among patients with SVR than in non-responders (21.3% vs 12.8%, p=0.026). Both the IL28B CC plus IL10R GG and the IL28B CC plus IL10R A allele combinations occurred with lower frequency in patients than in controls. CONCLUSIONS In our HCV1 patients, both the IL28B CC and IL10R GG genotypes are associated with clearance of HCV. Moreover, distinct IL28B and IL10R allele combinations appear to be protective against chronic HCV1 infection and predictors of response to P/R therapy.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Antiviral Agents/therapeutic use
- Drug Resistance, Multiple, Viral
- Drug Therapy, Combination
- Female
- Gene Frequency
- Genotype
- Hepacivirus/drug effects
- Hepacivirus/genetics
- Hepatitis C, Chronic/drug therapy
- Hepatitis C, Chronic/epidemiology
- Hepatitis C, Chronic/genetics
- Hepatitis C, Chronic/prevention & control
- Humans
- Hungary
- Interferon alpha-2
- Interferon-alpha/therapeutic use
- Interferons
- Interleukins/genetics
- Male
- Middle Aged
- Patient Selection
- Polyethylene Glycols/therapeutic use
- Polymorphism, Single Nucleotide
- Promoter Regions, Genetic/genetics
- Receptors, Interleukin-10/genetics
- Recombinant Proteins/therapeutic use
- Ribavirin/therapeutic use
- Treatment Outcome
- Young Adult
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Affiliation(s)
- Alajos Pár
- First Department of Medicine, University of Pécs, Rákóczi u. 2, 7623 Pécs, Hungary
| | - Gabriella Pár
- First Department of Medicine, University of Pécs, Rákóczi u. 2, 7623 Pécs, Hungary
| | - István Tornai
- Second Department of Medicine, University of Debrecen, 4012 Debrecen, Hungary
| | - Ferenc Szalay
- First Department of Medicine, Semmelweis University, 1082 Budapest, Hungary
| | - Dalma Várszegi
- Department of Dermatology, University of Pécs, 7627 Pécs, Hungary
| | - Edit Fráter
- Second Department of Medicine, University of Debrecen, 4012 Debrecen, Hungary
| | - Mária Papp
- Second Department of Medicine, University of Debrecen, 4012 Debrecen, Hungary
| | - Gabriella Lengyel
- Second Department of Medicine, Semmelweis University, 1088 Budapest, Hungary
| | - János Fehér
- Second Department of Medicine, Semmelweis University, 1088 Budapest, Hungary
| | - Márta Varga
- Réthy Pál Hospital, 5600 Békéscsaba, Hungary
| | | | - János Schuller
- United Szent István and Szent László Hospital, 1097 Budapest, Hungary
| | - Zsuzsanna Nemes
- First Department of Medicine, University of Pécs, Rákóczi u. 2, 7623 Pécs, Hungary
| | - Zoltán Péterfi
- First Department of Medicine, University of Pécs, Rákóczi u. 2, 7623 Pécs, Hungary
| | | | - Béla Hunyady
- First Department of Medicine, University of Pécs, Rákóczi u. 2, 7623 Pécs, Hungary
| | - Attila Haragh
- Kaposi Mór Teaching Hospital, 7400 Kaposvár, Hungary
| | - Zsolt Szinku
- Kaposi Mór Teaching Hospital, 7400 Kaposvár, Hungary
| | - Áron Vincze
- First Department of Medicine, University of Pécs, Rákóczi u. 2, 7623 Pécs, Hungary
| | - László Szereday
- Department of Medical Microbiology and Immunology, University of Pécs, 7624 Pécs, Hungary
| | - Péter Kisfali
- Department of Medical Genetics, University of Pécs, 7624 Pécs, Hungary
| | - Béla Melegh
- Department of Medical Genetics, University of Pécs, 7624 Pécs, Hungary
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Rojas Á, del Campo JA, Maraver M, Aparcero R, García-Valdecasas M, Diago M, Carmona I, Andrade RJ, Solà R, Romero-Gómez M. Hepatitis C virus infection alters lipid metabolism depending on IL28B polymorphism and viral genotype and modulates gene expression in vivo and in vitro. J Viral Hepat 2014; 21:19-24. [PMID: 24188401 DOI: 10.1111/jvh.12209] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 10/15/2013] [Indexed: 02/06/2023]
Abstract
Hepatitis C virus (HCV) interacts with lipid receptors to enter the cell, circulates as lipoviroparticle and is secreted as VLDL. We aimed to investigate the role of the rs12979860 polymorphism in the IL28B gene in 143 with chronic hepatitis C genotype 1, 144 infected with genotype 3, 90 genotype 4 and 413 noninfected individuals on lipid profile and to test the impact of HCV infection in an in vitro model on VLDL biosynthesis-related gene expression rs12979860 polymorphism was analysed using real-time PCR coupled to Fluorescence Resonance Energy Transfer (FRET). Huh7.5 (rs12979860 CT) and Huh7 (genotype CC) cells were infected with JFH-1 particles and serum from patients infected with genotypes 1 and 3. Gene expression of apolipoprotein B (apoB), microsomal triglyceride transfer protein (MTP), acetyl CoA carboxylase (ACC), diacylglycerol acyltransferase 2 (DGAT2), diacylglycerol acyltransferase 1 (DGAT1) and low-density lipoprotein receptor (LDLr) genes were determined by semiquantitative RT-PCR in vivo and in vitro. Genotype CC rs12979860 polymorphism was associated with significantly higher serum LDL and total cholesterol levels in patients with hepatitis C genotype 1 but not in patients with hepatitis C genotype 3, genotype 4 and control (noninfected) population. Genotype CC was more often seen in genotype 3 and healthy people in comparison with genotype 1; P = 0.001. In vitro results showed that HCV infection promotes lipid metabolism gene expression induction depending on viral genotype, but to a lesser extent in cells with CT genotype. These results demonstrate that IL28B genotype influences lipid metabolism in patients with hepatitis C but not in noninfected and it seems to be viral genotype-mediated. HCV infection modifies lipid-related genes expression (DGAT1 and DGAT2) in cultured cells based on viral genotype and IL28 polymorphism.
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Affiliation(s)
- Á Rojas
- UCM Digestive Diseases and CIBERehd, Hospital de Valme, Sevilla, Spain
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Jin G, Kang H, Chen X, Dai D. Evaluation of the relationship between IL28B, IL10RB and IL28RA single-nucleotide polymorphisms and susceptibility to hepatitis C virus in Chinese Han population. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2014; 21:8-14. [PMID: 24144988 DOI: 10.1016/j.meegid.2013.10.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 10/08/2013] [Accepted: 10/10/2013] [Indexed: 11/23/2022]
Abstract
Hepatitis C virus (HCV) infection is associated with both viral and host factors. Cytokines, such as interferon (IFN)-λ, play a critical role in modulating the innate and adaptive immune systems. This study aims to investigate the association between single-nucleotide polymorphisms (SNPs) of interleukin (IL) 28B, IL10RB, and IL28RA genes and susceptibility to HCV infection in a population from the Liaoning Province of China. We used high resolution melt-polymerase chain reaction (HRM-PCR) analyses for genotype 6 polymorphisms in these genes in 271 chronic HCV-infected patients and in 300 healthy control subjects. The distribution of IL10RB and IL28RA genotypes among the HCV-infected and control groups did not differ significantly. However, we did find that the four IL28B variants were in complete linkage disequilibrium (r(2) = 0.831-0.922), and the frequency of rs8099917 GT genotype was significantly higher among chronic HCV-infected patients than among controls (OR = 2.21, 95% CI = 1.33-3.68, P = 0.00193); the G allele was found more frequently in the chronic HCV-infected group than in the control group (OR = 2.10, 95% CI = 1.28-3.44, P = 0.00276). Haplotype analysis showed that IL28B (rs12980275, rs11881222, rs12979860 and rs8099917) haplotype AACT had a protective effect for HCV infection (OR = 0.52, 95% CI = 0.33-0.83, P = 0.00551). This study indicates that the four SNPs in IL28B are correlated with susceptibility to HCV infection.
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Affiliation(s)
- Guojiang Jin
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China.
| | - Hui Kang
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China.
| | - Xin Chen
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Di Dai
- Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
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Mangia A, Mottola L, Santoro R. Interleukin 28B polymorphisms as predictor of response in hepatitis C virus genotype 2 and 3 infected patients. World J Gastroenterol 2013; 19:8924-8. [PMID: 24379617 PMCID: PMC3870545 DOI: 10.3748/wjg.v19.i47.8924] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 10/30/2013] [Accepted: 11/28/2013] [Indexed: 02/06/2023] Open
Abstract
Single nucleotide polymorphisms near the interleukin 28B (IL-28B) gene have been identified as strong predictors of both spontaneous or Peg-interferon (Peg-IFN) and ribavirin (RBV) induced clearance of hepatitis C virus (HCV). Several studies have shown that, in patients with genotype 1 (GT-1), rs12979860 C/C and rs8099917 T/T substitutions are associated with a more than twofold increase in sustained virological response rate to Peg-IFN and RBV treatment. Although new treatment regimens based on combination of DAA with or without IFN are in the approval phase, until combination regimens with a backbone of Peg-IFN will be used, we can expect that IL28B holds its importance. The clinical relevance of IL28B genotyping in treatment of patients infected with HCV genotype 2 (GT-2) and 3 (GT-3) remains controversial. Therefore, after a careful examination of the available literature, we analyzed the impact of IL28B in GT-2 and -3. Simple size of the studies and GT-2 and GT-3 proportion were discussed. An algorithm for the practical use of IL28B in these patients was suggested at the aim of optimizing treatment.
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Angelo ALD, Cavalcante LN, Abe-Sandes K, Machado TB, Lemaire DC, Malta F, Pinho JR, Lyra LGC, Lyra AC. Myxovirus resistance, osteopontin and suppressor of cytokine signaling 3 polymorphisms predict hepatitis C virus therapy response in an admixed patient population: comparison with IL28B. Clinics (Sao Paulo) 2013; 68:1325-32. [PMID: 24212839 PMCID: PMC3798553 DOI: 10.6061/clinics/2013(10)06] [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: 04/05/2013] [Revised: 04/24/2013] [Accepted: 05/15/2013] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES Suppressor of cytokine signaling 3, myxovirus resistance protein and osteopontin gene polymorphisms may influence the therapeutic response in patients with chronic hepatitis C, and an association with IL28 might increase the power to predict sustained virologic response. Our aims were to evaluate the association between myxovirus resistance protein, osteopontin and suppressor of cytokine signaling 3 gene polymorphisms in combination with IL28B and to assess the therapy response in hepatitis C patients treated with pegylated-interferon plus ribavirin. METHOD Myxovirus resistance protein, osteopontin, suppressor of cytokine signaling 3 and IL28B polymorphisms were analyzed by PCR-restriction fragment length polymorphism, direct sequencing and real-time PCR. Ancestry was determined using genetic markers. RESULTS We analyzed 181 individuals, including 52 who were sustained virologic responders. The protective genotype frequencies among the sustained virologic response group were as follows: the G/G suppressor of cytokine signaling 3 (rs4969170) (62.2%); T/T osteopontin (rs2853744) (60%); T/T osteopontin (rs11730582) (64.3%); and the G/T myxovirus resistance protein (rs2071430) genotype (54%). The patients who had ≥3 of the protective genotypes from the myxovirus resistance protein, the suppressor of cytokine signaling 3 and osteopontin had a greater than 90% probability of achieving a sustained response (p<0.0001). The C/C IL28B genotype was present in 58.8% of the subjects in this group. The sustained virological response rates increased to 85.7% and 91.7% by analyzing C/C IL28B with the T/T osteopontin genotype at rs11730582 and the G/G suppressor of cytokine signaling 3 genotype, respectively. Genetic ancestry analysis revealed an admixed population. CONCLUSION Hepatitis C genotype 1 patients who were responders to interferon-based therapy had a high frequency of multiple protective polymorphisms in the myxovirus resistance protein, osteopontin and suppressor of cytokine signaling 3 genes. The combined analysis of the suppressor of cytokine signaling 3 and IL28B genotypes more effectively predicted sustained virologic response than IL28B analysis alone.
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Pár A, Pár G, Tornai I, Szalay F, Várszegi D, Fráter E, Papp M, Lengyel G, Fehér J, Varga M, Gervain J, Schuller J, Nemes Z, Péterfi Z, Tusnádi A, Hunyady B, Haragh A, Szinku Z, Pálinkás L, Berki T, Vincze A, Kisfali P, Melegh B. [IL28B CC genotype: a protective factor and predictor of the response to interferon treatment in chronic hepatitis C virus infection]. Orv Hetil 2013; 154:1261-8. [PMID: 23916907 DOI: 10.1556/oh.2013.29680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
INTRODUCTION In chronic hepatitis C-virus infection the possible role of gene variants encoding cytokines has become the focus of interest. AIM The aim of the study was to investigate the effect of IL28B polymorphisms on the outcome of chronic hepatitis C-virus genotype 1 infection in the Hungarian population. In addition, the association between IL28B genotypes and the Th1/Th2 cytokine production of activated peripheral blood monocytes and lymphocytes was evaluated. METHOD Total of 748 chronic hepatitis C-virus genotype 1 positive patients (365 males and 383 females, aged between 18 and 82 years; mean age, 54±10 years) were enrolled, of which 420 patients were treated with pegylated interferon plus ribavirin for 24-72 weeks. Of the 420 patients, 195 patients (46.4%) achieved sustained virological response. The IL28B rs12979860 polymorphism was determined using Custom Taqman SNP Genotyping Assays (Applied Biosystems, Life Technologies, Foster, CA, USA). For cytokine studies, tumour necrosis factor-α, interleukin-2, interferon-γ, interleukin-2 and interleukin-4 production by LPS-stimulated monocytes and PMA-ionomycine activated lymphocytes were measured from the supernatant of the cells obtained from 40 hepatitis C-virus infected patients, using FACS-CBA Becton Dickinson test. The cytokine levels were compared in patients with different (CC, CT, TT) IL28B genotypes. RESULTS The IL28B rs12979860 CC genotype occurred in lower frequency in hepatitis C-virus infected patients than in healthy controls (26.1% vs 51.4%, OR 0.333, p<0.001). Patients carried the T allele with higher frequency than controls (73.9%, vs 48.6%, OR 3.003, p<0.001). Pegylated interferon plus ribavirin treated patients with the IL28B CC genotype achieved higher sustained virological response rate than those with the CT genotype (58.6% vs 40.8%, OR 2.057, p = 0.002), and those who carried the T allele (41.8%, OR1.976, p = 0.002). LPS-induced TLR-4 activation of monocytes resulted in higher tumour necrosis factor-α production in patients with the IL28B CC genotype compared to non-CC individuals (p<0.01). Similarly, increased tumour necrosis factor-α, interleukin-2 and interferon-γ production by lymphocytes was found in the IL28B CC carriers (p<0.01) CONCLUSIONS: The IL28B CC genotype exerts protective effect against chronic hepatitis C-virus infection and may be a pretreatment predictor of sustained virological response during interferon-based antiviral therapy. The IL28B CC polymorphism is associated with increased Th1 cytokine production of activated peripheral blood monocytes and lymphocytes, which may play a role in interferon-induced rapid immune control and sustained virological response of pegylated interferon plus ribavirin treated patients.
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Affiliation(s)
- Alajos Pár
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Orvos- és Egészségtudományi Centrum I. Belgyógyászati Klinika.
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Taliani G, Spaziante M, Biliotti E, Borro M, Palazzo D, Grieco S, Franchi C, Iaiani G, Furlan C, Gallinaro V, Simmaco M. IL28B gene polymorphisms and US liver fatty changes in patients who spontaneously cleared hepatitis C virus infection. PLoS One 2013; 8:e67301. [PMID: 23936294 PMCID: PMC3731327 DOI: 10.1371/journal.pone.0067301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 05/16/2013] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Recent clinical studies have shown that the presence of CC genotype in the rs12979860 region of IL28B gene is associated with an increase in the probability of spontaneous clearance of hepatitis C virus (HCV). Moreover, IL28B polymorphism seems to influence the probability of developing liver steatosis in chronic HCV patients. AIMS The aims of our clinical study were 1) to verify the distribution of IL28B genotypes (CC, CT or TT) among subjects with spontaneous clearance of HCV infection and 2) to examine the correlation between IL28B polymorphism and hepatic steatosis among these subjects. METHODS AND PATIENTS We enrolled 41 subjects with spontaneous resolution of HCV infection (detectable serum anti-HCV but undetectable HCV-RNA) and 134 healthy controls from the same geographical area. The IL28B single-nucleotide polymorphism (SNP) rs12979860 was genotyped by using a Pyrosequencing™ technique. The presence of steatosis was assessed by liver biopsy or ultrasound examination in the 41 study subjects. RESULTS CC, CT and TT-genotypes of the SNP rs1979860 were found in 66%, 24% and 10% of the subjects who spontaneously cleared HCV and in 31%, 54% and 15% of controls, respectively (p = 0.0003). Among the study subjects, females with CC-genotype were significantly more represented (p = 0.02). Hepatic steatosis did not correlate with IL28B genotype (p = 0,14) but only with a high body mass index (BMI) value (p = 0.03). CONCLUSIONS Female subjects carrying IL28B CC-genotype are significantly more represented among Italian patients who spontaneously cleared HCV infection. In addition, among these subjects, the presence of liver steatosis does not correlate with IL28B genotype but is solely related to the occurrence of high BMI. Thus, the association between IL28B polymorphism and steatosis in chronic HCV patients requires the presence of active HCV replication to occur, while in subjects who have cleared the infection, the mechanism(s) inducing liver steatosis are independent from IL28B profile.
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Affiliation(s)
- Gloria Taliani
- Clinica Malattie Infettive e Tropicali, Department of Clinical Medicine, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
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Yang M, Rao HY, Feng B, Zhang W, Wei L. Impact of interleukin 28B polymorphisms on spontaneous clearance of hepatitis C virus infection: a meta-analysis. J Gastroenterol Hepatol 2013; 28:1114-21. [PMID: 23611115 DOI: 10.1111/jgh.12233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/07/2013] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND AIM Recent studies suggested that interleukin 28B (IL28B) polymorphisms may affect spontaneous clearance (SC) of hepatitis C virus (HCV) infection. Our purpose was to update the meta-analysis to reevaluate the impact of IL28B rs12979860 and rs8099917 polymorphisms on SC in patients infected with HCV. METHODS We searched PubMed, Web of Science, and Embase up to February 2013. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated by fixed- or random-effects models. Heterogeneity, sensitivity analysis, and publication bias were also assessed. RESULTS Seventeen eligible papers were involved in this study. The SC rate was higher in patients with the rs12979860 CC (vs CT/TT OR = 2.98, 95% CI 2.53-3.50) and rs8099917 TT (vs GT/GG OR = 2.80, 95% CI 2.23-3.51) in the IL28B polymorphisms. Ethnicity stratification revealed that rs12979860 CC was associated with SC for Caucasians (vs CT/TT OR = 3.05, 95% CI 2.67-3.49), Asians (vs CT/TT OR = 1.88, 95% CI 1.33-2.66), and Africans (vs CT/TT OR = 3.15, 95% CI 2.39-4.15); rs8099917 TT was associated with SC for Caucasians (vs GT/GG OR = 2.48, 95% CI 1.96-3.15). CONCLUSIONS IL28B rs12979860 and rs8099917 single nucleotide polymorphisms are significantly associated with SC of HCV infection. The predictive value of rs12979860 CC was stronger in Caucasians and Africans than in Asians.
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Affiliation(s)
- Ming Yang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University, Beijing, China
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STICCHI L, DI BIAGIO A, RAPPAZZO E, SETTI M, DE ROSA G, DE HOFFER L, NICOLINI L, PRINAPORI R, BRUZZONE B. Rs12979860 and rs8099917 single nucleotide polymorphisms of interleukin-28B gene: simultaneous genotyping in caucasian patients infected with hepatitis C virus. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2013; 54:83-6. [PMID: 24396987 PMCID: PMC4718385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/31/2013] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Recent studies have demonstrated the role of the interleukin 28B (IL28B) polymorphisms in predicting treatment induced and spontaneous clearance from Hepatitis C virus (HCV) infection, suggesting the possibility of tailored therapy in HCV infected patients. Genome-wide association studies have shown that single nucleotide polymorphisms (SNPs) near IL 28B gene on chromosome 19 are strong predictors of sustained virologic response (SVR) to pegylated interferon and ribavirin. This study was aimed at analyzing the co-prevalence of two common and clinically significant SNPs in a cohort of Ligurian patients. METHODS Two SNPs (rs12979860, rs8099917) were genotyped in the IL28B locus from 175 DNA samples collected from HCV-infected consecutive patients in a Laboratory of Liguria Region, northern Italy. A real-time polymerase chain reaction in a Corbett Research Termocycler (Rotor Gene 3000A) by fluorescent probes (Fast Set IL 28B, Arrow Diagnostics) was used for the detection, according to the manufacturer's instructions. RESULTS Carriers of rs12979860CT genotype predominated (87/175, 50%), homozygotes for allele C were 68/175 (39%) and the remaining were homozygotes for IFN-resistant allele T (11%). As for the rs8099917 SNP, genotypes were thus distributed: 96/175 (55%) carried the rs8099917 TT genotype, whereas 70/175 (40%) and 9/175 (5%), were heterozygotes or homozygotes for the G allele. The variants rs12979860CC and rs8099917TT were found in 39% and 54% of overall patients with HCV genotype 1, respectively. The combined assessment of examined SNPs resulted in three most prevalent genotypes (rs12979860CC/rs8099917TT, rs12979860CT/rs8099917TG and rs12979860CT/rs8099917TT) with a frequency of 35%, 31% and 18%, respectively. DISCUSSION Recent findings demonstrated that in carriers of rs12979860CT the determination of additional genotype of rs8099917 SNP could significantly improve the prediction of SVR. In our study cohort carriers of rs12979860CT represented 50% of all patients, who could take advantage with respect to SVR prediction by further determination of the rs8099917 SNP. The simultaneous genotyping of two IL28B SNPs should thus be recommended in HCV infected patients prior to treatment initiation.
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Affiliation(s)
- L. STICCHI
- Department of Health Sciences, University of Genoa, Italy
- Hygiene Unit, IRCCS AOU San Martino, IST, Genoa, Italy
| | - A. DI BIAGIO
- Infectious Diseases, IRCCS AOU San Martino, Genoa, Italy
| | - E. RAPPAZZO
- Department of Health Sciences, University of Genoa, Italy
| | - M. SETTI
- Internal Medicine and Clinical Immunology Unit, IRCCS AOU San Martino, IST, Genoa, Italy
| | - G. DE ROSA
- Hygiene Unit, IRCCS AOU San Martino, IST, Genoa, Italy
| | - L. DE HOFFER
- Infectious Diseases, IRCCS AOU San Martino, Genoa, Italy
| | - L. NICOLINI
- Infectious Diseases, IRCCS AOU San Martino, Genoa, Italy
| | - R. PRINAPORI
- Infectious Diseases, IRCCS AOU San Martino, Genoa, Italy
| | - B. BRUZZONE
- Department of Health Sciences, University of Genoa, Italy
- Hygiene Unit, IRCCS AOU San Martino, IST, Genoa, Italy
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Cui Q, Zhang Y, Su J, Shi C, Lei N, Ding K, Li J, Yu R, Wang L, Wang N. The association between the genetic polymorphisms of LMP2/LMP7 and the outcomes of HCV infection among drug users. J Biomed Res 2013; 24:374-80. [PMID: 23554652 PMCID: PMC3596683 DOI: 10.1016/s1674-8301(10)60050-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Indexed: 12/20/2022] Open
Abstract
Objective To investigate a possible association of LMP2/LMP7 genes with chronic hepatitis C virus (HCV) infection, and to assess whether LMP2/LMP7 genes could influence the outcomes of HCV infection among drug users. Methods Genomic DNAs of 362 anti-HCV sero-positive drug users and 225 control drug users were extracted from the peripheral blood leukocytes. The sero-positive patients were divided into those who had persistent infection and those who had spontaneously cleared the infection. Polymorphisms of LMP genes were determined by PCR combined with restriction fragment length polymorphism (RFLP). Results The distribution of LMP2 genotypes among the control, persistent infection and spontaneous clearance groups were not different. However, the LMP7 codon 145 Gln/Lys, Lys/Lys, and Gln/Lys+Lys/Lys genotypes were found significantly more frequent in the persistent infection group than in control group (OR=1.75, 95%CI=1.06∼2.90; OR=3.16, 95%CI=1.23-8.12; OR = 1.94, 95%CI=1.21-3.12, respectively). Similarly, the frequencies of the codon 145 Gln/Lys, Lys/Lys, and Gln/Lys+Lys/Lys genotypes were found significantly more frequent in the persistent infection group than in the spontaneous clearance group (OR=1.64, 95%CI=1.04-2.57; OR=2.40, 95%CI=1.09-5.28; OR=1.76, 95%CI=1.15-2.69, respectively). Stratified analysis indicated that combined genotype Gln/Lys + Lys/Lys of the LMP7 gene was related to an increasing susceptibility to HCV infection (OR=1.91, 95%CI=1.02-3.55; OR=2.19, 95%CI=1.24-3.89; OR=1.91, 95%CI=1.05-3.48, OR=2.86, 95%CI=1.41-5.78, respectively) and the risk of persistent HCV infection (OR=1.94, 95%CI=1.12-3.34; OR=2.02, 95%CI=1.21-3.38; OR=1.78, 95%CI=1.12-2.85, OR=2.23, 95%CI=1.09-4.58, respectively) among > 30-year-old, males, the injection drug user (IDU) subjects and/or the shorter duration drug users (≤5 y). Conclusion These results suggest that polymorphism of the LMP7 gene may have an influence on the outcomes of HCV infection, and is one of the factors accounting for the genetic susceptibility to HCV infection among drug users.
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Affiliation(s)
- Qian Cui
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
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Down-regulation of Toll-like receptor 7 expression in hepatitis-virus-related human hepatocellular carcinoma. Hum Pathol 2012; 44:534-41. [PMID: 23069256 DOI: 10.1016/j.humpath.2012.06.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 06/21/2012] [Accepted: 06/27/2012] [Indexed: 12/28/2022]
Abstract
Toll-like receptors (TLRs) play a pivotal role in innate immunity, controlling inflammatory responses, and further development of adaptive immunity. Hepatitis virus can establish chronic infection, and the associated inflammatory responses are important determinants of virus-associated liver damage. However, the contributions of the host immune system to chronic presence of virus are not clear in patients with hepatitis virus infection. Chronic inflammatory conditions caused by persistent hepatitis virus infections and interferon (IFN)-γ-related immunopathology are known to be related to carcinogenesis. To gain insight into the role of immune modulation in the pathogenesis of hepatocellular carcinoma (HCC), we studied the expression of TLR7 in cancerous and non-cancerous liver tissue from 87 patients with HCC. Our results showed that TLR7 is significantly down-regulated in neoplastic hepatocytes (P < .001), especially in the patients with hepatitis B (n = 52) or C (n = 24) virus infection. We confirmed this decreased TLR7 expression by quantitative analysis of mRNA using real-time reverse transcription-polymerase chain reaction in 26 liver specimens of HCC patients. Using serial deletion analysis of the TLR7 promoter, a hepatocyte-specific regulatory region was found at nucleotides -156 to -98 in the TLR7 promoter. Furthermore, the effects of IFN-γ on TLR7 expression in a hepatoma cell line (HepG2) were investigated in vitro. We demonstrated that IFN-γ significantly decreased TLR7 promoter activity and expression in a dose-dependent manner. We thus propose that hepatitis virus induces down-regulation of TLR7 gene expression through IFN-γ, thereby modulating inflammatory signaling in hepatoma cells.
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Tran HA, Jones TL, Ianna EA, Gibson RA, Reeves GEM. The reduced predictive value of interleukin 28b gene polymorphisms in a cohort of patients with thyroiditis developed during antiviral therapy for chronic hepatitis C: a preliminary study. HEPATITIS MONTHLY 2012; 12:e6036. [PMID: 23087747 PMCID: PMC3475014 DOI: 10.5812/hepatmon.6036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 05/15/2012] [Accepted: 05/22/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND Single nucleotide polymorphism in the interleukin28B (IL28B) gene was recently shown to be associated with a significant increase in response to interferon-α and ribavirin treatment in patients with chronic hepatitis C. Similarly, thyroid disease (TD) occurring during treatment confer an improved sustained virologic response (SVR). OBJECTIVES To determine the role of IL28B genotypes in a cohort of hepatitis C patients who develop TD during treatment and its relationship to SVR. PATIENTS AND METHODS IL28B gene profiles including rs12979860, rs12980275 and rs 8099917 and their genotypes were determined in a cohort of 23 hepatitis C patients who developed TD during treatment and their relationship to SVR. RESULTS Out of 23 studies cases, 19 has one or more favorable genotypes, of which 15 (78.9%) achieved SVR. Eleven has all three unfavorable genotypes and yet achieved 72.7 % SVR. The presence of more than one favorable genotype only correctly predicts SVR vs. non- SVR in ~50 % of cases, i.e. by chance. CONCLUSIONS Despite the small number of subjects, the presence of one or more unfavorable IL28B genotype does not portend a poor SVR prognostic outcome. This suggests that TD in this clinical context may be a critical factor in the achievement of SVR, probably above that of the genetic predisposition.
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Affiliation(s)
- Huy A Tran
- Hunter Area Pathology Service, John Hunter Hospital, Newcastle, Australia
- Corresponding author: Huy A Tran, Pathology Service, John Hunter Hospital, Locked Bag Number 1, Hunter Mail Region Centre, Newcastle, New South Wales 2310, Australia. Tel.: +61-249214005, Fax: +61-249214440, E-mail:
| | - Tracey L Jones
- Hepatitis C Service, Gastroenterology Department, John Hunter Hospital, Newcastle, Australia
| | - Elizabeth A Ianna
- Hepatitis C Service, Gastroenterology Department, John Hunter Hospital, Newcastle, Australia
| | - Robert A Gibson
- Hepatitis C Service, Gastroenterology Department, John Hunter Hospital, Newcastle, Australia
| | - Glenn E M Reeves
- Hunter Area Pathology Service, John Hunter Hospital, Newcastle, Australia
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Amini M, Poustchi H. Hepatitis C virus spontaneous clearance: immunology and genetic variance. Viral Immunol 2012; 25:241-8. [PMID: 22823386 DOI: 10.1089/vim.2011.0052] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hepatitis C virus (HCV) infection is one of the most common chronic viral infections in the world. Approximately 80-90% of acutely infected individuals develop persistent infection, which is a major risk for liver cirrhosis and liver cancer. However, a small portion of patients (10-20%) clear the virus. Clinical outcomes of HCV infection are determined by the interplay between the host immune response, and viral and environmental factors. In regulating immune responses, cytokines play an indispensable role that controls the underlying pathogenesis and the resulting outcome of HCV infection. Cytokines themselves are manipulated by polymorphisms in their genes. In fact, the majority of genetic variants that apparently confer a significant risk for chronic HCV infection have been localized in genes involved in cytokine synthesis and the ultimate immune response. So far, treatment strategies for HCV infection have remained controversial. Genotyping of different polymorphisms will aid clinical decision making for both current standard and personalized care. Genotyping can potentially be useful for future integration of other agents, which provides an opportunity for clinicians to personalize treatment regimens for HCV patients. This review summarizes findings of different studies on host immune responses after HCV infection and the association between cytokine gene polymorphisms and the likelihood of HCV clearance.
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Affiliation(s)
- Marzyeh Amini
- Digestive Disease Research Centre, Shariati Hospital, Tehran University of Medical science, Tehran, Iran
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Fischer J, Böhm S, Scholz M, Müller T, Witt H, George J, Sarrazin C, Susser S, Schott E, Suppiah V, Booth DR, Stewart GJ, van Bömmel F, Brodzinski A, Fülöp B, Migaud P, Berg T. Combined effects of different interleukin-28B gene variants on the outcome of dual combination therapy in chronic hepatitis C virus type 1 infection. Hepatology 2012; 55:1700-10. [PMID: 22234924 DOI: 10.1002/hep.25582] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 12/21/2011] [Indexed: 02/06/2023]
Abstract
UNLABELLED In patients with chronic hepatitis C virus (HCV) infection, several variants of the interleukin-28B (IL28B) gene have been shown to correlate significantly with a sustained virologic response (SVR). Recent evidence shows that determination of one single IL28B polymorphism, rs12979860, is sufficient for predicting treatment outcome. We examined whether the combined determination of the IL28B single-nucleotide polymorphisms (SNPs), rs12979860, rs8099917, rs12980275, and rs8103142, might improve the prediction of SVR in patients with HCV. In the study cohort, 54% of 942 patients with chronic HCV type 1 infection had SVR. The IL28B SNPs, rs12979860CC and rs8099917TT, correlated significantly with SVR (68% and 62%). The SNPs, rs12980275 and rs8103142, were in strong linkage disequilibrium with rs12979860 and were not included in further analysis. In homozygous carriers of the rs12979860 responder allele C, additional genotyping of the rs8099917 SNP had no effect on response prediction, whereas in carriers of the rs12979860 nonresponder allele, the rs8099917 SNP improved the response prediction. In heterozygous carriers of the rs12979860 nonresponder T allele, SVR rates were 55% in the presence of the rs8099917TT genotype and 40% in patients carrying the rs8099917 TG or GG genotype. Analysis of an independent confirmation cohort of 377 HCV type 1-infected patients verified the significant difference in SVR rates between the combined genotypes, rs12979860CT/rs8099917TT and rs12979860CT/rs8099917TG (38% versus 21%; P = 0.018). CONCLUSION Treatment outcome prediction could not be improved in homozygous carriers of the IL28B rs12979860 C responder allele by the additional determination of the rs8099917 SNP. There is evidence that a significant proportion of heterozygous carriers of the rs12979860 T nonresponder allele can profit with respect to SVR prediction by further determination of the rs8099917 SNP. (HEPATOLOGY 2012;55:1700-1710).
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Affiliation(s)
- Janett Fischer
- Sektion Hepatologie, Klinik und Poliklinik für Gastroenterologie und Rheumatologie, Universitätsklinikum Leipzig, Leipzig, Germany.
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Arababadi MK, Nasiri Ahmadabadi B, Kennedy D. Current information on the immunologic status of occult hepatitis B infection. Transfusion 2012; 52:1819-26. [PMID: 22404554 DOI: 10.1111/j.1537-2995.2012.03575.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hepatitis B is one of the most frequently occurring posttransfusion infections. Occult hepatitis B (OB) is a form of hepatitis B in which, despite the presence of hepatitis B virus (HBV) DNA in the serum and hepatocytes of a carrier, hepatitis B surface antigen is absent. In addition to the risk of transfusion of infection, OB can lead to cirrhosis, hepatic cancer, and reactivation of the viral duplication process in the carrier. The mechanisms responsible for progression of OB are yet to be clarified; however, some investigators have suggested that genetic and immunologic variables may play a significant role in the resistance of some individuals and sensitivity of other patients. This review addresses the current information regarding immunologic status of OB-infected patients.
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Affiliation(s)
- Mohammad Kazemi Arababadi
- Department of Microbiology, Hematology and Immunology, Faculty of Medicine, and Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
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Nattermann J, Timm J, Nischalke HD, Olbrich A, Michalk M, Tillmann HL, Berg T, Wedemeyer H, Tenckhoff H, Wiese M, Kullig U, Göbel U, Capka E, Schiefke I, Güthof W, Grüngreiff K, König I, Roggendorf M, Sauerbruch T, Spengler U. The predictive value of IL28B gene polymorphism for spontaneous clearance in a single source outbreak cohort is limited in patients carrying the CCR5Δ32 mutation. J Hepatol 2011; 55:1201-6. [PMID: 21703201 DOI: 10.1016/j.jhep.2011.03.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 02/17/2011] [Accepted: 03/14/2011] [Indexed: 01/22/2023]
Abstract
BACKGROUND & AIMS The CCR5Δ32 mutation has been suspected to adversely affect outcomes of HCV infection, although reports have remained controversial. Here, we investigated the relative genetic contributions of the CCR5Δ32 deletion and the IL28B rs12979860 polymorphisms to spontaneous clearance of hepatitis C in a single-source outbreak. METHODS We retrieved 396 Caucasian women (119 women with spontaneous HCV clearance) who had been infected with HCV genotype 1-contaminated anti-D immunoglobulin in 1978, and determined their IL28B and CCR5 alleles. RESULTS IL28B CC, CT, and TT genotypes were found in 35.4%, 50%, and 14.6% of patients and corresponded to spontaneous clearance rates of 50%, 21.2%, and 12.1% (Chi(2)=38.7, p=5.0×10(-10)), respectively. CCR5 WT/WT, WT/Δ32, and Δ32/Δ32 genotypes were observed in 76%, 22.7%, and 1.3% of patients and corresponded to clearance rates of 33.2%, 21.2%, and 0% (Chi(2)=6.9, p=0.009), respectively. In a stepwise forward-conditional multivariate regression model both CCR5 (OR 2.1, p=0.01 for WT/WT) and IL28B genetic variants (OR 4.3, p=4.6×10(-10) for the C/C genotype) were identified as independent predictors of spontaneous HCV clearance. Importantly, favorable response rates were associated with the IL28B CC genotype only in CCR5 wild-type homozygous women, while HCV clearance in CCR5Δ32 carriers remained poor even in patients with the rs12979860 CC genotype. CONCLUSIONS Both IL28B rs1297860 and CCR5Δ32 allelic variants are independent genetic determinants of spontaneous HCV clearance. The variable relative distribution between IL28B rs1297860 and CCR5Δ32 allelic variants in different populations may have masked the role of the CCR5Δ32 mutation in some studies.
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Affiliation(s)
- Jacob Nattermann
- Department of Internal Medicine, University of Bonn, Bonn, Germany.
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Kuniholm MH, Gao X, Xue X, Kovacs A, Marti D, Thio CL, Peters MG, Greenblatt RM, Goedert JJ, Cohen MH, Minkoff H, Gange SJ, Anastos K, Fazzari M, Young MA, Strickler HD, Carrington M. The relation of HLA genotype to hepatitis C viral load and markers of liver fibrosis in HIV-infected and HIV-uninfected women. J Infect Dis 2011; 203:1807-14. [PMID: 21606539 DOI: 10.1093/infdis/jir192] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Human leukocyte antigen (HLA) class I and II genotype is associated with clearance of hepatitis C virus (HCV) infection, but little is known regarding its relation with HCV viral load or risk of liver disease in patients with persistent HCV infection. METHODS High-resolution HLA class I and II genotyping was conducted in a prospective cohort of 519 human immunodeficiency virus (HIV)-seropositive and 100 HIV-seronegative women with persistent HCV infection. The end points were baseline HCV viral load and 2 noninvasive indexes of liver disease, fibrosis-4 (FIB-4), and the aspartate aminotransferase to platelet ratio index (APRI), measured at baseline and prospectively. RESULTS DQB1*0301 was associated with low baseline HCV load (β = -.4; 95% confidence interval [CI], -.6 to -.3; P < .00001), as well as with low odds of FIB-4-defined (odds ratio [OR], .5; 95% CI, .2-.9; P = .02) and APRI-defined liver fibrosis (OR, .5; 95% CI, .3-1.0; P = .06) at baseline and/or during follow-up. Most additional associations with HCV viral load also involved HLA class II alleles. Additional associations with FIB-4 and APRI primarily involved class I alleles, for example, the relation of B*1503 with APRI-defined fibrosis had an OR of 2.0 (95% CI, 1.0-3.7; P = .04). CONCLUSIONS HLA genotype may influence HCV viral load and risk of liver disease, including DQB1*0301, which was associated with HCV clearance in prior studies.
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Affiliation(s)
- Mark H Kuniholm
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
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Puri CP. Interleukin 28B Polymorphisms and Hepatitis C-Translating the Association into Clinical Decision Making. J Clin Exp Hepatol 2011; 1:27-33. [PMID: 25755307 PMCID: PMC3940297 DOI: 10.1016/s0973-6883(11)60115-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Accepted: 06/03/2011] [Indexed: 12/12/2022] Open
Abstract
Host genetic factors have long been suspected to play a role in predicting outcome and treatment response in hepatitis C virus (HCV) infection. This was confirmed recently by three landmark genome-wide association studies (GWAS) published in 2009, which identified single nucleotide polymorphisms near the interleukin (IL) 28B region that were more common in responders to treatment. There has subsequently been rapidly increasing data regarding the significance of the IL28B polymorphism not only in response to therapy but also in spontaneous clearance of acute HCV infection. This clinical association of Il28B genotype with HCV may lead to personalized HCV therapy, where the clinician may tailor the duration and type of therapy for an individual patient. This review summarizes the available data on the impact of IL28B polymorphisms on HCV infection and discusses the possible approach to translate this association into clinical decision making for the treatment of HCV infection.
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Key Words
- ALT, alanine transaminase
- EVR, early virological response
- GWAS, Genome-wide Association Studies
- HCC, hepatocellular carcinoma
- HCV, hepatitis C virus
- HIV, human immunodeficiency virus
- Hepatitis C virus
- IFN, interferon
- IL28B
- IL28B, interleukin 28B
- NVR, null virological response
- OR, odds ratio
- PEG-IFN, pegylated interferon
- RBV, ribavirin
- RNA, ribonucleic acid
- RVR, rapid virological response
- SNP, single nucleotide polymorphism
- SVR, sustained virological response
- treatment
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Affiliation(s)
- Col Pankaj Puri
- Senior Advisor (Medicine & Gastroenterology), Army Hospital (R&R), Delhi Cantt., New Delhi
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Pár A. [Genetic polymorphisms as predictors of response to antiviral treatment in chronic hepatitis C virus infection]. Orv Hetil 2011; 152:876-81. [PMID: 21565755 DOI: 10.1556/oh.2011.29113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The review discusses the genetic polymorphisms involved in the pathogenesis of hepatitis C virus (HCV) infection, that may determine the outcome of disease. In this field earlier both certain major histocompatibility complex (MHC) alleles and some cytokine gene variants have also been studied. Recently, the genome-wide association study (GWAS) and targeted single nucleotide polymorphism (SNP) analysis have revealed that a variant in the promoter region of interleukin-28B (IL-28B) gene is strongly linked to viral clearance and it may be the strongest pretreatment predictor of treatment response in chronic hepatitis C. Last year it was shown that two genetic variants leading to inosine triphosphatase deficiency protect against haemolytic anemia in patients receiving ribavirin during antiviral treatment for chronic HCV infection.
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Affiliation(s)
- Alajos Pár
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ I. Belgyógyászati Klinika Pécs Ifjúság u. 13. 7624.
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Romero-Gomez M, Eslam M, Ruiz A, Maraver M. Genes and hepatitis C: susceptibility, fibrosis progression and response to treatment. Liver Int 2011; 31:443-60. [PMID: 21382156 DOI: 10.1111/j.1478-3231.2011.02449.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hepatitis C virus contact and infection show three different phenotypes: spontaneous viral clearance (SVC), chronic hepatitis C (CHC) and sustained virological response (SVR) following antiviral treatment. Many factors, including genetics, influence the evolution of these three phenotypes. We performed a literature search (PubMed) up to 31 January 2010 without language restriction to identify relevant studies on genes and hepatitis C. Additional studies were sought by reviewing the reference lists of the identified articles. Meta-analysis (using Meta-disk 1.4) was conducted to evaluate the association of single nucleotide polymorphism (SNP) in the IL28B region and SVR. The candidate gene approach showed strong relationships between human leucocyte antigen class II (DQB1(*) 0301 and DRB1(*) 1101) and SVC. A cirrhosis risk score involving 7 SNPs has been validated recently. The set of odds ratios of studies demonstrated an association between SNP (rs12987960/rs8099917) in the IL28B and SVR in CHC treated with peginterferon plus ribavirin (OR: 4.6; 95% CI: 2.9-7.3). The overall distribution of protective allele correlated with ethnic differences in SVR (Asians, Europeans, Hispanic and Afro-Americans) together with SVC, but not with fibrosis stage or viral load. These polymorphisms did not influence SVR in very-easy-to-treat patients such as genotype 2/3, rapid virological responders or patients with acute hepatitis C. While the genetic fingerprint for fibrosis progression remains elusive, IL28b polymorphism predicts SVC and SVR. However, nearly half of patients achieving SVR did not show favourable genotype. Further genetic signals are warranted to complete the puzzle of factors influencing hepatitis C.
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Affiliation(s)
- Manuel Romero-Gomez
- Unit for the Clinical Management of Digestive Diseases and Ciberehd, Hospital Universitario de Valme, Sevilla, Spain.
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Arababadi MK, Pourfathollah AA, Jafarzadeh A, Hassanshahi G, Shamizadeh A, Ahmadabadi BN, Kennedy D. The status of humoral immunity in occult HBV infection in south-eastern Iranian patients. Clin Res Hepatol Gastroenterol 2011; 35:309-14. [PMID: 21310685 DOI: 10.1016/j.clinre.2010.12.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 11/29/2010] [Accepted: 12/02/2010] [Indexed: 02/04/2023]
Abstract
BACKGROUND Occult hepatitis B infection (OBI) is characterized as a form of hepatitis in which, despite of absence of detectable HBsAg, HBV-DNA is present in patient's peripheral blood. The aim of this study was to investigate components of humoral immunity during OBI as a possible measure of how patients respond to Hepatitis B viral infections. MATERIAL AND METHODS In this study, HBsAg-/anti-HBc+/HBV-DNA+ samples were assigned as OBI cases and SRID techniques were performed to measure levels of circulating antibodies (IgG, IgM and IgA) as well as C3, C4. In addition, complement system function was assessed by CH50. RESULTS Our results showed that the serum levels of IgG and C4 were significantly lower in OBI patients, while IgM and C3 were higher in patients when compared to healthy controls. Serum levels of IgA and CH50 were not significantly different between OBI patients and controls. DISCUSSION Based on these results, it could be concluded that although OBI patients produced elevated levels of IgM there may be a problem converting and progressing this response to generate enough IgG to overcome HBV infection.
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Affiliation(s)
- Mohammad Kazemi Arababadi
- Department of Microbiology, Hematology and Immunology, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
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O'Brien KB, Morrison TE, Dundore DY, Heise MT, Schultz-Cherry S. A protective role for complement C3 protein during pandemic 2009 H1N1 and H5N1 influenza A virus infection. PLoS One 2011; 6:e17377. [PMID: 21408070 PMCID: PMC3052313 DOI: 10.1371/journal.pone.0017377] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2010] [Accepted: 02/01/2011] [Indexed: 01/09/2023] Open
Abstract
Highly pathogenic H5N1 influenza infections are associated with enhanced inflammatory and cytokine responses, severe lung damage, and an overall dysregulation of innate immunity. C3, a member of the complement system of serum proteins, is a major component of the innate immune and inflammatory responses. However, the role of this protein in the pathogenesis of H5N1 infection is unknown. Here we demonstrate that H5N1 influenza virus infected mice had increased levels of C5a and C3 activation byproducts as compared to mice infected with either seasonal or pandemic 2009 H1N1 influenza viruses. We hypothesized that the increased complement was associated with the enhanced disease associated with the H5N1 infection. However, studies in knockout mice demonstrated that C3 was required for protection from influenza infection, proper viral clearance, and associated with changes in cellular infiltration. These studies suggest that although the levels of complement activation may differ depending on the influenza virus subtype, complement is an important host defense mechanism.
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Affiliation(s)
- Kevin B. O'Brien
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, Wisconsin, United States of America
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, United States of America
| | - Thomas E. Morrison
- Department of Microbiology, University of Colorado–Denver, Aurora, Colorado, United States of America
| | - David Y. Dundore
- Department of Medical Microbiology and Immunology, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Mark T. Heise
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, United States of America
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, North Carolina, United States of America
- Carolina Vaccine Institute, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Stacey Schultz-Cherry
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, United States of America
- * E-mail:
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Pár A, Kisfali P, Melegh B, Tornai I, Gervain J, Szalay F, Varga M, Papp M, Schuller J, Tusnádi A, Fehér J, Lengyel G, Nemes Z, Péterfi Z, Hunyady B, Vincze Á, Pár G. Cytokine (IL-10, IL-28B and LT-A) gene polymorphisms in chronic hepatitis C virus infection. ACTA ACUST UNITED AC 2011. [DOI: 10.1556/cemed.4.2010.2.2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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