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Hao D, Niu LN. Computational Study on the Wealth Conformations of Hepatitis C Virus Envelope Glycoprotein 2 and Role of Its Glycan Coat. J Chem Inf Model 2024; 64:4811-4821. [PMID: 38861660 DOI: 10.1021/acs.jcim.4c00521] [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: 06/13/2024]
Abstract
Hepatitis C virus (HCV) is a major cause of chronic liver disease and hepatocellular carcinoma. Antibody development efforts mainly revolve around HCV envelope glycoprotein 2 (E2), which mediates host cell entry by interacting with several cell surface receptors, including CD81. We still have limited knowledge about the structural ensembles and the dynamic behavior of both the CD81 binding sites and the glycans on E2. Here, multiple microsecond-long, all-atom molecular dynamics (MD) simulations, as well as a Markov state model (MSM), were performed to provide an atomistic perspective on the dynamic nature of E2 and its glycans. End-to-end accessibility analyses outline a complete overview of the vulnerabilities of the glycan shield of E2, which may be exploited in therapeutic efforts. Additionally, the Markov state model built from the simulation maps four metastable states for AS412 and three metastable states for the front layer in CD81 binding sites, while binding with HEPC3 would induce a conformation selection for both of them. Overall, this work presents hitherto unseen functional and structural insights into E2 and its glycan coat, providing a new theoretical foundation to control the conformational plasticity of E2 that could be harnessed for vaccine development.
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Affiliation(s)
- Dongxiao Hao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
- School of Electronics and Information Engineering, Ankang University, Ankang 725000, China
| | - Li-Na Niu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
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2
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Sallam M, Khalil R. Contemporary Insights into Hepatitis C Virus: A Comprehensive Review. Microorganisms 2024; 12:1035. [PMID: 38930417 PMCID: PMC11205832 DOI: 10.3390/microorganisms12061035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/15/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Hepatitis C virus (HCV) remains a significant global health challenge. Approximately 50 million people were living with chronic hepatitis C based on the World Health Organization as of 2024, contributing extensively to global morbidity and mortality. The advent and approval of several direct-acting antiviral (DAA) regimens significantly improved HCV treatment, offering potentially high rates of cure for chronic hepatitis C. However, the promising aim of eventual HCV eradication remains challenging. Key challenges include the variability in DAA access across different regions, slightly variable response rates to DAAs across diverse patient populations and HCV genotypes/subtypes, and the emergence of resistance-associated substitutions (RASs), potentially conferring resistance to DAAs. Therefore, periodic reassessment of current HCV knowledge is needed. An up-to-date review on HCV is also necessitated based on the observed shifts in HCV epidemiological trends, continuous development and approval of therapeutic strategies, and changes in public health policies. Thus, the current comprehensive review aimed to integrate the latest knowledge on the epidemiology, pathophysiology, diagnostic approaches, treatment options and preventive strategies for HCV, with a particular focus on the current challenges associated with RASs and ongoing efforts in vaccine development. This review sought to provide healthcare professionals, researchers, and policymakers with the necessary insights to address the HCV burden more effectively. We aimed to highlight the progress made in managing and preventing HCV infection and to highlight the persistent barriers challenging the prevention of HCV infection. The overarching goal was to align with global health objectives towards reducing the burden of chronic hepatitis, aiming for its eventual elimination as a public health threat by 2030.
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Affiliation(s)
- Malik Sallam
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, The University of Jordan, Amman 11942, Jordan
- Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Amman 11942, Jordan
| | - Roaa Khalil
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, The University of Jordan, Amman 11942, Jordan
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3
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Ghebremeskel GG, Berhe Solomon M, Achila OO, Mengistu ST, Asmelash RF, Berhane Mesfin A, Hamida ME. Real-world treatment outcome of direct-acting antivirals and patient survival rates in chronic hepatitis C virus infection in Eritrea. Sci Rep 2023; 13:20792. [PMID: 38012181 PMCID: PMC10682448 DOI: 10.1038/s41598-023-47258-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 11/10/2023] [Indexed: 11/29/2023] Open
Abstract
Reliable real-world data on direct acting anti-retroviral (DAA) uptake and treatment outcomes are lacking for patients with hepatitis C virus (HCV) in sub-Saharan Africa. This study provides data on HCV DAA-based treatment outcomes, mortality, loss-to-follow up, and associated factors among patients in Eritrea. A multicenter retrospective observational cohort study was conducted in two tertiary hospitals in Asmara, Eritrea. A structured checklist was used to collect data from patient's cards. Descriptive and inferential statistics used included means (± Standard deviation (SD), medians (Interquartile range (IQR), chi-squire (χ2), Kaplan-Meier estimates, and multivariate Cox proportional hazard models. A total of 238 patients with median age of 59 years (IQR 50-69 years) were enrolled in the study. Out of the 227 patients initiated on treatment, 125 patients had viral load measurements at 12 weeks after end of treatment (EOT) whereas 102 patients had no viral load measurements at 12 weeks EOT. Among the patients with HCV RNA data post-EOT 12, 116 (92.8%) had sustained viral response (SVR). The prevalence of death and loss-to-follow up (LTFU) were (7.5%, 95% CI 1.7-4.1) and 67 (28.1%, 95% CI 22.3-33.9) translating into an incidence of 1.1 (95% CI 0.8-1.5) per 10,000 person days. Independent predictors of LTFU included the enrollment year (2020: aHR = 2.2, 95% CI 1-4.7; p value = 0.04); Hospital (Hospital B: aHR = 2.2, 95% CI 1-4.7; p value = 0.03) and the FIB-4 score (FIB-Score < 1.45: aHR = 3.7, 95% CI 1.2-11.5; p value = 0.02). The SVR rates achieved in this cohort were high. However, high LTFU and high mortality driven largely by late presentation and suboptimal population screening/case finding, were uncovered. These challenges can be addressed by test-and-treat programs that simultaneously prioritize programmatic screening, decentralization of care, and better patient tracking in the HCV care cascade.
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Affiliation(s)
| | | | - Oliver Okoth Achila
- Unit of Clinical Laboratory Science, Orotta College of Medicine and Health Sciences (OCMHS), Asmara, Eritrea
| | | | | | - Araia Berhane Mesfin
- National Communicable Disease Control Division, Ministry of Health, Asmara, Eritrea
| | - Mohammed Elfatih Hamida
- Department of Medical Microbiology, Orotta College of Medicine and Health Sciences (OCMHS), Asmara, Eritrea
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Li S, Li J, Xu Y, Xiang Z, Wu J. Editorial: Pathogen-host interaction in the development of viral hepatitis. Front Cell Infect Microbiol 2023; 13:1333470. [PMID: 38076454 PMCID: PMC10699298 DOI: 10.3389/fcimb.2023.1333470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Affiliation(s)
- Shuxiang Li
- Department of Clinical Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
| | - Jiarui Li
- Zhejiang University, School of Medicine, Hangzhou, China
| | - Yunyang Xu
- Zhejiang University, School of Medicine, Hangzhou, China
| | - Ze Xiang
- Zhejiang University, School of Medicine, Hangzhou, China
| | - Jian Wu
- Department of Clinical Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, China
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5
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Braude M, Ratnam DT, Marsh L, Abasszade JH, Dev AT. Hepatitis C virus treatment with glecaprevir and pibrentasvir in patients co-prescribed carbamazepine: Three case reports. World J Gastrointest Pharmacol Ther 2023; 14:33-38. [PMID: 37484883 PMCID: PMC10359723 DOI: 10.4292/wjgpt.v14.i4.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/26/2023] [Accepted: 06/19/2023] [Indexed: 07/04/2023] Open
Abstract
BACKGROUND Highly effective and well-tolerated direct-acting antiviral (DAA) therapies have revolutionised the management of hepatitis C virus (HCV); however, niche populations face treatment barriers. DAAs co-prescribed with several first-generation anti-epileptic drugs (AEDs) are contraindicated due to drug-drug interactions. A common example is carbamazepine whereby steady-state carbamazepine reduces the maximum concentration and area under the curve of velpatasvir, glecaprevir and pibrentasvir due to potent cytochrome P450 (CYP) 3A4 induction. Carbamazepine also induces P-glycoprotein which reduces glecaprevir and pibrentasvir’s area under curve to infinite time. Sofosbuvir-velpatasvir and glecaprevir-pibrentasvir are contraindicated in patients who are co-prescribed carbamazepine due to the risk of reduced DAA therapeutic effect and consequently, virological treatment failure. This presents a challenge for patients in whom carbamazepine substitution is medically unfeasible, impractical or unacceptable. However, the properties of current generation DAA therapies, including high-potency non-structural protein 5A inhibitory effect, may be sufficient to overcome reduced bioavailability arising from carbamazepine related CYP 3A4 and P-glycoprotein induction.
CASE SUMMARY We present a case series of three patients with non-cirrhotic, treatment-naïve, genotype 1a, 1b, and 3a HCV who were treated with a 12 wk course of glecaprevir-pibrentasvir, while co-prescribed carbamazepine for seizure disorders. Glecaprevir-pibrentasvir combination therapy was chosen due to its potent in vitro activity and low barrier to pan-genotypic resistance associated variants. DAA therapy was dose-separated from carbamazepine to maximise time to peak concentration, and taken with meals to improve absorption. Sustained virological response at 12 wk was achieved in each patient with no adverse outcomes.
CONCLUSION DAA therapies, including glecaprevir-pibrentasvir, warrant consideration as a therapeutic agent in people with HCV who are co-prescribed carbamazepine, particularly if AED substitution is not feasible.
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Affiliation(s)
- Michael Braude
- Department of Gastroenterology and Hepatology, Monash Health, Clayton 3168, VIC, Australia
| | - Dilip T Ratnam
- Department of Gastroenterology and Hepatology, Monash Health, Clayton 3168, VIC, Australia
| | - Louise Marsh
- General Practice, Margaret River Medical Centre, Margaret River 6285, Australia
| | - Joshua H Abasszade
- Department of Gastroenterology and Hepatology, Monash Health, Clayton 3168, VIC, Australia
| | - Anouk T Dev
- Department of Gastroenterology and Hepatology, Monash Health, Clayton 3168, VIC, Australia
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Zhang H, Zhang XQ, Huang LS, Fang X, Khan M, Xu Y, An J, Schooley RT, Huang Z. Synergistic inhibition of hepatitis C virus infection by a novel microtubule inhibitor in combination with daclatasvir. Biochem Biophys Rep 2022; 30:101283. [PMID: 35647321 PMCID: PMC9136107 DOI: 10.1016/j.bbrep.2022.101283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 11/23/2022] Open
Abstract
Even though substantial progress has been made in the treatment of hepatitis C virus (HCV) infection, viral resistance and relapse still occur in some patients and additional therapeutic approaches may ultimately be needed should viral resistance become more prevalent. Microtubules play important roles in several HCV life cycle events, including cell attachment, entry, cellular transportation, morphogenesis and progeny secretion steps. Therefore, it was hypothesized that microtubular inhibition might be a novel approach for the treatment of HCV infection. Here, the inhibitory effects of our recently developed microtubule inhibitors were studied in the HCV replicon luciferase reporter system and the infectious system. In addition, the combination responses of microtubule inhibitors with daclatasvir, which is a clinically used HCV NS5A inhibitor, were also evaluated. Our results indicated that microtubule targeting had activity against HCV replication and showed synergistic effect with a current clinical drug. Microtubule inhibition affects HCV replication. Compound 9f displays time and concentration dependent inhibitory activities against HCV production. Combination of compound 9f with Daclatasvir shows modest synergistic effects against HCV replication.
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Affiliation(s)
- Huijun Zhang
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, 518172, China
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Xing-Quan Zhang
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
| | - Lina S. Huang
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
| | - Xiong Fang
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Mohsin Khan
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
| | - Yan Xu
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Jing An
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
- Corresponding author.
| | - Robert T. Schooley
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
- Corresponding author.
| | - Ziwei Huang
- Division of Infectious Diseases and Global Public Health, Department of Medicine, School of Medicine, University of California at San Diego, La Jolla, 92093, California, USA
- Corresponding author.
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Plasma Virome Reveals Blooms and Transmission of Anellovirus in Intravenous Drug Users with HIV-1, HCV, and/or HBV Infections. Microbiol Spectr 2022; 10:e0144722. [PMID: 35758682 PMCID: PMC9431549 DOI: 10.1128/spectrum.01447-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Intravenous drug users (IDUs) are a high-risk group for HIV-1, hepatitis C virus (HCV), and hepatitis B virus (HBV) infections, which are the leading causes of death in IDUs. However, the plasma virome of IDUs and how it is influenced by above viral infections remain unclear. Using viral metagenomics, we determined the plasma virome of IDUs and its association with HIV-1, HCV, and/or HBV infections. Compared with healthy individuals, IDUs especially those with major viral infections had higher viral abundance and diversity. Anelloviridae dominated plasma virome. Coinfections of multiple anelloviruses were common, and anelloviruses from the same genus tended to coexist together. In this study, 4,487 anellovirus ORF1 sequences were identified, including 1,620 (36.1%) with less than 69% identity to any known sequences, which tripled the current number. Compared with healthy controls (HC), more anellovirus sequences were observed in neg-IDUs, and HIV-1, HCV, and/or HBV infections further expanded the sequence number in IDUs, which was characterized by the emergence of novel divergent taxons and blooms of resident anelloviruses. Pegivirus was mainly identified in infected IDUs. Five main pegivirus transmission clusters (TCs) were identified by phylogenetic analysis, suggesting a transmission link. Similar anellovirus profiles were observed in IDUs within the same TC, suggesting transmission of anellome among IDUs. Our data suggested that IDUs suffered higher plasma viral burden especially anelloviruses, which was associated with HIV-1, HCV, and/or HBV infections. Blooms in abundance and unprecedented diversity of anellovirus highlighted active evolution and replication of this virus in blood circulation, and an uncharacterized role it may engage with the host. IMPORTANCE Virome is associated with immune status and determines or influences disease progression through both pathogenic and resident viruses. Increased viral burden in IDUs especially those with major viral infections indicated the suboptimal immune status and high infection risks of these population. Blooms in abundance and unprecedented diversity of anellovirus highlighted its active evolution and replication in the blood circulation, and sensitive response to other viral infections. In addition, transmission cluster analysis revealed the transmission link of pegivirus among IDUs, and the individuals with transmission links shared similar anellome profiles. In-depth monitoring of the plasma virome in high-risk populations is not only needed for surveillance for emerging viruses and transmission networks of major and neglected bloodborne viruses, but also important for a better understanding of commensal viruses and their role it may engage with immune system.
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8
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Malik GF, Zakaria N, Majeed MI, Ismail FW. Viral Hepatitis - The Road Traveled and the Journey Remaining. Hepat Med 2022; 14:13-26. [PMID: 35300491 PMCID: PMC8922334 DOI: 10.2147/hmer.s352568] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 02/24/2022] [Indexed: 12/16/2022] Open
Abstract
Hepatitis is defined as inflammation of the liver and is commonly due to infection with The hepatotropic viruses - hepatitis A, B, C, D and E. Hepatitis carries one of the highest disease burdens globally and has caused significant morbidity and mortality among different patient populations. Clinical presentation varies from asymptomatic or acute flu-like illness to acute liver failure or chronic liver disease, characterized by jaundice, hepatomegaly and ascites among many other signs. Eventually, this can lead to fibrosis (cirrhosis) of the liver parenchyma and carries a risk of development into hepatocellular carcinoma. Hepatitis B and C are most notorious for causing liver cirrhosis; in 2019, an estimated 296 million people worldwide had chronic hepatitis B infection and 58 million are currently estimated to have chronic hepatitis C, with 1.5 million new infections of both hepatitis B and C, occurring annually. With the help of latest serological biomarkers and viral nucleic acid amplification tests, it has become rather simple to efficiently screen, diagnose and monitor patients with hepatitis, and to commence with appropriate antiviral treatment. More importantly, the development of vaccinations against some of these viruses has greatly helped to curb the infection rates. Whilst there has been exceptional progress over the years in the management of viral hepatitis, many hurdles still remain which must be addressed in order to proceed towards a hepatitis-free world. This review will shed light on the origin and discovery of the hepatitis viruses, the global epidemiology and clinical symptoms, diagnostic modalities, currently available treatment options, the importance of prevention, and the journey needed to move forward towards the eradication of its global disease burden.
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Affiliation(s)
- Ghulam Fareed Malik
- Section of Gastroenterology, Department of Medicine, The Aga Khan University, Karachi, Pakistan
| | - Noval Zakaria
- Section of Gastroenterology, Department of Medicine, The Aga Khan University, Karachi, Pakistan
| | | | - Faisal Wasim Ismail
- Section of Gastroenterology, Department of Medicine, The Aga Khan University, Karachi, Pakistan
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Qamar Z, Anwar F, Ahmad R, Haq I, haq M, Kashif Khan AM, Hussain R, ullah A, Shahzad Z, Ahmad I, Munir Malik MS, Kamran khan M, Khan J. Prevalence of Hepatitis C virus and determination of its genotypes in subjects of Tehsil Daggar District Buner, KP, Pakistan. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2021. [DOI: 10.1016/j.cegh.2021.100809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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10
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Prevalence and Predominant Genotype of Hepatitis C Virus Infection and Associated Risk Factors among Pregnant Women in Iran. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9294276. [PMID: 34589552 PMCID: PMC8476243 DOI: 10.1155/2021/9294276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 08/02/2021] [Accepted: 08/24/2021] [Indexed: 12/21/2022]
Abstract
Objective Knowledge regarding the prevalence and risk factors of hepatitis C virus (HCV) infection among pregnant women can give clue to health care providers regarding the appropriate management of HCV infection. Therefore, this study was conducted to determine the prevalence, genotypic pattern, and risk factors of HCV infection among pregnant women in the northern shores of the Persian Gulf, south of Iran. Methods From January 2018 to June 2019, serum samples were obtained from 1425 pregnant women, ages ranging from 14 to 46 years (28.1 ± 5.99). Serum samples were tested for detection of anti-HCV antibodies using an enzyme-linked immunosorbent assay (ELISA) (HCV Ab ELISA kit, Dia.Pro, Milan, Italy). Following the extraction of nucleic acid, the molecular evaluation of HCV infection was performed by seminested reverse transcriptase-polymerase chain reaction assay (RT-PCR), targeting the 5′ untranslated region (5′UTR) and core of HCV genome and sequencing. Results Of the 1425 pregnant women, 19 women (1.33%, 95% CI: 0.85%–2.07%) were positive for anti-HCV antibodies. The majority of HCV-seropositive women were in the third trimester of pregnancy, educated, and had a history of blood transfusion, abortion, surgery, or dentistry. Moreover, Arab and Fars pregnant women and those aged >39 years had the highest rate of HCV seroprevalence. Nevertheless, none of these variables were significantly associated with HCV seropositivity. In contrast, HCV seropositivity was associated with place of residency, so that residents of Khormuj city had significantly higher HCV seroprevalence compared to the residents of other cities (OR: 7.05; 95% CI: 1.75–28.39; P = 0.006). According to the molecular evaluation, 9 of the 19 HCV-seropositive pregnant women (47.37%) had HCV viremia with genotype 3a. Conclusion This study reports the HCV prevalence of 1.33% for anti-HCV antibodies and 0.63% for HCV RNA among pregnant women in the south of Iran. Considering the asymptomatic nature of chronic HCV infection and the fact that vertical transmission is possible in women with detectable viremia, therefore, screening of women before pregnancy is recommended to reduce the risk of HCV infection and its complications during pregnancy.
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Wang Y, Zhao Z, Zhang H, Lin Q, Wang N, Ngwanguong Hannah M, Rui J, Yang T, Li P, Mao S, Lin S, Liu X, Zhu Y, Xu J, Yang M, Luo L, Liu C, Li Z, Deng B, Huang J, Liu W, Zhao B, Su Y, Chen T. Estimating the transmissibility of hepatitis C: A modelling study in Yichang City, China. J Viral Hepat 2021; 28:1464-1473. [PMID: 34314082 DOI: 10.1111/jvh.13582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 12/09/2022]
Abstract
Yichang is a city in central China in the Hubei Province. This study aimed to estimate the dynamics of the transmissibility of hepatitis C using a mathematical model and predict the transmissibility of hepatitis C in 2030. Data of hepatitis C cases from 13 counties or districts (cities) in Yichang from 2008 to 2016 were collected. A susceptible-infectious-chronic-recovered (SICR) model was developed to fit the data. The transmissibility of hepatitis C at the counties or districts was calculated based on new infections (including infected or chronically infected cases) reported monthly in the city caused by one infectious individual (MNI). The trend of the MNI was fitted and predicted using 11 models, with the coefficient of determination (R2 ) was being used to test the goodness of fit of these models. A total of 3065 cases of hepatitis C were reported in Yichang from 2008 to 2016. The median MNI of Yichang was 0.0768. According to the fitting results and analysis, the trend of transmissibility of hepatitis C in Yichang City conforms with the logarithmic (R2 = 0.918, p < 0.001):MNI = 0.265-0.108 log(t) and exponential (R2 = 0.939, p < 0.001): MNI = 0.344e(-0.278t) models. Hence, the transmission of hepatitis C virus at the county level has a downward trend. In conclusion, the transmissibility of hepatitis C in Yichang has a downward trend. With the current preventive and control measures in place, the spread of hepatitis C can be controlled.
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Affiliation(s)
- Yao Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Zeyu Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Hao Zhang
- Yichang municipal Center for Disease Control and Prevention, Yichang City, China
| | - Qin Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Ning Wang
- Shenzhen Heng Sheng Hospital, Shenzhen City, China
| | | | - Jia Rui
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Tianlong Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Peihua Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Siying Mao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Shengnan Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Xingchun Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Yuanzhao Zhu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Jingwen Xu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Meng Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Li Luo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Chan Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Zhuoyang Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Bin Deng
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Jiefeng Huang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Weikang Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Benhua Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Yanhua Su
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
| | - Tianmu Chen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen City, China
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12
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Mammari N, Krier Y, Albert Q, Devocelle M, Varbanov M. Plant-Derived Antimicrobial Peptides as Potential Antiviral Agents in Systemic Viral Infections. Pharmaceuticals (Basel) 2021; 14:ph14080774. [PMID: 34451871 PMCID: PMC8400714 DOI: 10.3390/ph14080774] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/30/2021] [Accepted: 07/30/2021] [Indexed: 12/26/2022] Open
Abstract
Numerous studies have led to a better understanding of the mechanisms of action of viruses in systemic infections for the development of prevention strategies and very promising antiviral therapies. Viruses still remain one of the main causes of human diseases, mainly because the development of new vaccines is usually challenging and drug resistance has become an increasing concern in recent decades. Therefore, the development of potential antiviral agents remains crucial and is an unmet clinical need. One abundant source of potential therapeutic molecules are plants: they biosynthesize a myriad of compounds, including peptides which can have antimicrobial activity. Our objective is to summarize the literature on peptides with antiviral properties derived from plants and to identify key features of these peptides and their application in systemic viral infections. This literature review highlights studies including clinical trials which demonstrated that plant cyclotides have the ability to inhibit the growth of viruses causing human diseases, defensin-like peptides possess anti-HIV-1 activity, and lipid transfer proteins and some lectins exhibit a varied antimicrobial profile. To conclude, plant peptides remain interesting to explore in the context of emerging and re-emerging infectious diseases.
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Affiliation(s)
- Nour Mammari
- L2CM, Université de Lorraine, CNRS, F-54000 Nancy, France;
| | - Ysaline Krier
- Faculté de Pharmacie, 7 Avenue de la Foret de Haye, 54505 Vandoeuvre-Les-Nancy, France;
| | - Quentin Albert
- Fungal Biodiversity and Biotechnology, INRAE/Aix-Marseille University, UMR1163, 13009 Marseille, France;
- CIRM-CF, INRAE/Aix Marseille University, UMR1163, 13009 Marseille, France
| | - Marc Devocelle
- SSPC (SFI Research Centre for Pharmaceuticals), V94T9PX Limerick, Ireland;
- Department of Chemistry, Royal College of Surgeons in Ireland, RCSI University of Medicine and Health Sciences, 123, St. Stephen’s Green, D02 YN77 Dublin 2, Ireland
| | - Mihayl Varbanov
- L2CM, Université de Lorraine, CNRS, F-54000 Nancy, France;
- Correspondence:
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Kassa Y, Million Y, Biset S, Moges F. Hepatitis B and Hepatitis C Viral Infections and Associated Factors Among Prisoners in Northeast Ethiopia. J Blood Med 2021; 12:561-570. [PMID: 34267568 PMCID: PMC8275151 DOI: 10.2147/jbm.s314556] [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: 04/06/2021] [Accepted: 06/16/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Hepatitis is an inflammation of the liver and often caused by viruses. Hepatitis viruses are the leading causes of liver-related morbidity and mortality worldwide, with Hepatitis B and C viruses share the great majority. Studies have shown that prison settings are one of the high-risk environments for the transmission of these viruses. However, there is limited information on the seroprevalence and associated factors of hepatitis B and C viral infection among Ethiopian prisoners. METHODS A facility-based cross-sectional study was conducted among 339 prisoners in Dessie town, Ethiopia from February to April 2020. Hepatitis B surface antigen and antibody against hepatitis C virus in serum were determined using Enzyme-Linked Immunosorbent Assay. We imputed the data using "EpiData 3.1" software and exported it to Statistical Package for Social Sciences version 20.0 for analysis, and a p-value of <0.05 was considered statistically significant. RESULTS The overall seroprevalence of hepatitis B surface antigen and anti-hepatitis C virus among prisoners was 22/339 (6.5%) (95% CI = 3.8-9.4), and 4/339 (1.2%) (95% CI = 0.0-2.4), respectively. Multiple sexual partners, previous imprisonment, body tattooing, and contact with the jaundiced patient were independently associated with hepatitis B virus infection. Prisoners who had a history of blood transfusion, and dental extraction were independently associated with hepatitis C virus infection. CONCLUSION The seroprevalence of hepatitis B and hepatitis C viral infection among Dessie town prisoners was intermediate and low, respectively. The finding of a significant association between the presence of Hepatitis B surface antigen and hepatitis C virus antibodies among prisoners and factors calls for the need of serological testing for both Hepatitis B and C viruses to high-risk individuals. Strengthening screening strategies and prevention programs in prison settings is advisable to prevent disease transmission.
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Affiliation(s)
- Yeshimebet Kassa
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Yihenew Million
- Department of Medical Microbiology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Sirak Biset
- Department of Medical Microbiology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Feleke Moges
- Department of Medical Microbiology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Taherkhani R, Taherkhani S, Farshadpour F. Dynamics of host immune responses to SARS-CoV-2. World J Clin Cases 2021; 9:4480-4490. [PMID: 34222416 PMCID: PMC8223819 DOI: 10.12998/wjcc.v9.i18.4480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/07/2021] [Accepted: 04/23/2021] [Indexed: 02/06/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the most recent global health threat, is spreading throughout the world with worrisome speed, and the current wave of coronavirus disease 2019 (COVID-19) seems to have no mercy. While this mysterious virus challenges our ability to control viral infections, our opportunities to control the COVID-19 pandemic are gradually fading. Currently, pandemic management relies on preventive interventions. Although prevention is a good strategy to mitigate SARS-CoV-2 transmission, it still cannot be considered an absolute solution to eliminate this pandemic. Currently, developing a potent immunity against this viral infection seems to be the most promising strategy to drive down this ongoing global tragedy. However, with the emergence of new challenges in the context of immune responses to COVID-19, the road to control this devastating pandemic seems bumpier; thus, it is pivotal to characterize the dynamics of host immune responses to COVID-19, in order to develop efficient prophylactic and therapeutic tools. This begs the question of whether the effector mechanisms of the immune system are indeed potent or a possible contributing factor to developing more severe and lethal forms of COVID-19. In this review, the possible role of the immunopathologic phenomena including antibody-dependent enhancement, cytokine storm, and original antigenic sin in severity and mortality of COVID-19 will be discussed.
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Affiliation(s)
- Reza Taherkhani
- Department of Virology, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
- Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
| | - Sakineh Taherkhani
- School of Medicine, Arak University of Medical Sciences, Arak 3848176589, Iran
| | - Fatemeh Farshadpour
- Department of Virology, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
- Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
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15
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Santana MS, Lopes R, Peron IH, Cruz CR, Gaspar AM, Costa PI. Natural Bioactive Compounds as Adjuvant Therapy for Hepatitis C Infection. CURRENT NUTRITION & FOOD SCIENCE 2021. [DOI: 10.2174/1573401316999201009152726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background:
Hepatitis C virus infection is a significant global health burden, which
causes acute or chronic hepatitis. Acute hepatitis C is generally asymptomatic and progresses to
cure, while persistent infection can progress to chronic liver disease and extrahepatic manifestations.
Standard treatment is expensive, poorly tolerated, and has variable sustained virologic responses
amongst the different viral genotypes. New therapies involve direct acting antivirals; however,
it is also very expensive and may not be accessible for all patients worldwide. In order to provide
a complementary approach to the already existing therapies, natural bioactive compounds are
investigated as to their several biologic activities, such as direct antiviral properties against hepatitis
C, and effects on mitigating chronic progression of the disease, which include hepatoprotective,
antioxidant, anticarcinogenic and anti-inflammatory activities; additionally, these compounds present
advantages, as chemical diversity, low cost of production and milder or inexistent side effects.
Objective:
To present a broad perspective on hepatitis C infection, the chronic disease, and natural
compounds with promising anti-HCV activity. Methods: This review consists of a systematic review
study about the natural bioactive compounds as a potential therapy for hepatitis C infection.
Results:
The quest for natural products has yielded compounds with biologic activity, including viral
replication inhibition in vitro, demonstrating antiviral activity against hepatitis C.
Conclusion:
One of the greatest advantages of using natural molecules from plant extracts is the
low cost of production, not requiring chemical synthesis, which can lead to less expensive therapies
available to low and middle-income countries.
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Affiliation(s)
- Moema S. Santana
- Food and Nutrition Department, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara-SP, Brazil
| | - Rute Lopes
- Department of Biotechnology, Institute of Chemistry, Sao Paulo State University (UNESP), Araraquara-SP, Brazil
| | - Isabela H. Peron
- Food and Nutrition Department, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara-SP, Brazil
| | - Carla R. Cruz
- Food and Nutrition Department, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara-SP, Brazil
| | - Ana M.M. Gaspar
- Department of Biotechnology, Institute of Chemistry, São Paulo State University (UNESP), Araraquara-SP, Brazil
| | - Paulo I. Costa
- Food and Nutrition Department, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara-SP, Brazil
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Seroepidemiology of Hepatitis B and C Virus Infections: A Five-Year Retrospective Study among Blood Donors in Saboba District in the Northern Region of Ghana. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5599705. [PMID: 34055986 PMCID: PMC8133840 DOI: 10.1155/2021/5599705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/21/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022]
Abstract
Methods A five-year hospital-based retrospective study was carried out among 8605 blood donors comprising 8517 males and 88 females using data on blood donors from Saboba Assemblies of God Hospital located in the Saboba District in the Northern Region of Ghana from 2013 to 2017. Blood bank records on HBV and HCV potential blood donors who visited the hospital to donate blood were retrieved. Donor demographic details, i.e., age and gender, were also recovered. Donors who were registered to the hospital but were not residents of the Northern Region were excluded from the study. Donors with incomplete records were also excluded from the study. The data was managed using Microsoft Excel spreadsheet 2016 and analysed using GraphPad Prism statistical software. Results The overall prevalence of asymptomatic viral hepatitis B and C infections in the general adult population was 9.59% (95% CI: 9.00-10.20) and 12.71% (95% CI: 12.00-13.40), respectively, with an HBV/HCV coinfection rate of 2.23% (95% CI: 1.90-2.60). The number of donors generally declined with advancement in years from 2038 (23.68%) since 2013 to as low as 1169 (13.59%) in 2016, except for 2017 where a sharp increase of 1926 (22.38%) was observed. The first and second highest proportions of donors fell within the age categories of 20-29 (51.53% (4434)) and 30-39 (32.90% (2831)) respectively. The seroprevalence rate of HBV, HCV, and HBV/HCV coinfection rates were generally higher among the female group than those observed among the male category. The year-to-year variation in HBV, HCV, and HBV/HCV infections was statistically significant. The highest year-to-year HBV seropositivity rate was 11.48% in the year 2013, while that for HCV and HBV/HCV coinfection was 16.24% and 5.85%, respectively, both documented in the year 2014. HBV and HBV/HCV coinfection rates were highest among donors aged <20 years old, while HCV seroprevalence was highest among donors aged 50-59 years old. Significantly higher odds of HBV/HCV coinfection (OR = 5.2; 95% CI:3.3-8.1) was observed in the 2014 compared to the year 2013. Donors aged <20years were at higher risks of HBV and HBV/HCV coinfection rates compared to the other age groups. Conclusion The seroprevalence of HBV and HCV among donors in the Saboba District of the Northern Region of Ghana is endemic. The HBV/HCV coinfection rate also raises serious concern owing to its high prevalence rate among the younger age. Intensive public health education coupled with mobile screening and mass vaccination of seronegative individuals is advised so as to help curb further spread of the infection and in effect help safeguard the health status of potential donors in the district.
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Farshadpour F, Taherkhani R. Antibody-Dependent Enhancement and the Critical Pattern of COVID-19: Possibilities and Considerations. Med Princ Pract 2021; 30:422-429. [PMID: 33882487 PMCID: PMC8339023 DOI: 10.1159/000516693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 04/20/2021] [Indexed: 12/14/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19), a pandemic infection with profound effects on human society, has challenged our ability to control viral infections. Although at the beginning of the COVID-19 outbreak, the epidemic seemed controllable in Southern Iran, the disease presented a critical pattern as of May 2020. After a few months of the emergence of COVID-19, its severity and mortality increased dramatically. It has been proposed that antibodies produced during previous exposure to local circulating human coronaviruses or possibly severe acute respiratory syndrome coronavirus 2 might contribute to the development of more severe and lethal presentations of COVID-19 possibly by triggering antibody-dependent enhancement. The binding of virions complexed with antibodies to Fcγ receptors on the target cells initiates receptor-mediated signaling events, leading to enhanced expression of inflammatory cytokines and suppression of intracellular antiviral responses at the transcriptome level, followed by endocytosis of the virus and subsequent activation of immune cells. The activated immune cells might accumulate in the lung and promote cytokine storm and lymphopenia. Furthermore, the formation of immune complexes can promote complement activation and subsequent tissue damage. Although there are currently no clinical data to support this hypothesis, a better understanding of these immunopathologic phenomena and their relation to the disease course and severity might give insights into the development of the most efficient prophylactic and therapeutic approaches. This review demonstrates the critical pattern of COVID-19 in Southern Iran and highlights the possible interplay of factors leading to this condition.
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Affiliation(s)
- Fatemeh Farshadpour
- Department of Virology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
- Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Reza Taherkhani
- Department of Virology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
- Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
- *Reza Taherkhani,
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Abstract
This study aimed at estimating the transmissibility of hepatitis C. The data for hepatitis C cases were collected in six districts in Xiamen City, China from 2004 to 2018. A population-mixed susceptible-infectious-chronic-recovered (SICR) model was used to fit the data and the parameters of the model were calculated. The basic reproduction number (R0) and the number of newly transmitted cases by a primary case per month (MNI) were adopted to quantitatively assess the transmissibility of hepatitis C virus (HCV). Eleven curve estimation models were employed to predict the trends of R0 and MNI in the city. The SICR model fits the reported HCV data well (P < 0.01). The median R0 of each district in Xiamen is 0.4059. R0 follows the cubic model curve, the compound curve and the power function curve. The median MNI of each district in Xiamen is 0.0020. MNI follows the cubic model curve, the compound curve and the power function curve. The transmissibility of HCV follows a decreasing trend, which reveals that under the current policy for prevention and control, there would be a high feasibility to eliminate the transmission of HCV in the city.
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Liu L, Al-Dhamin Z, Yuan X, Cui L, Yang Y, Zhao W, Zhang Y, Fu N, Nan Y. Plasma Golgi protein 73 levels predict prognosis of HCV-related hepatic fibrosis. Histol Histopathol 2020; 35:1309-1318. [PMID: 33063838 DOI: 10.14670/hh-18-269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To explore the correlation between plasma Golgi protein 73 (GP73) and progression of hepatitis C virus (HCV)-induced hepatic fibrosis. METHODS A total of 232 subjects of chronic hepatitis C and 31 healthy controls were enrolled from the Third Hospital of Hebei Medical University from January 2010 to September 2018. The plasma GP73 levels were detected by ELISA. Liver tissue sections stained with hematoxylin and eosin and Masson-trichrome were examined under a light microscope based on the METAVIR scoring system and "Beijing classification (P-I-R)". The correlation analysis and receiver operating characteristic (ROC) curve were performed to analyze the diagnostic efficiency of plasma GP73, APRI, and FIB-4 for staging hepatic fibrosis and predicting the disease progression. RESULTS The plasma GP73 levels were increased with the progression of liver fibrosis, and GP73 concentrations in healthy controls, HCV patients with fibrosis stage 1, 2, 3 and 4 were 94.82, 151.3, 157.9, 181.7 and 208.5 ng/ml, respectively. According to "Beijing classification", There was a statistically significant difference in plasma GP73 concentrations between patients in the progression and regressive / indeterminate group (177.08 vs 154.00 ng/ml , P = 0.007).The area under the ROC curves (AUCs) of GP73, APRI, and FIB-4 for diagnosis of liver cirrhosis were 0.89, 0.77, and 0.82, respectively, and GP73 for progressive fibrosis was 0.73. The plasma GP73 levels were significantly positively correlated with hepatic inflammation, serum ALT, and negatively correlated with albumin levels. CONCLUSION The plasma GP73 might be a potential biomarker for staging liver fibrosis, and could predict regression or progression of HCV-related liver fibrosis.
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Affiliation(s)
- Lingdi Liu
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Zaid Al-Dhamin
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Xiwei Yuan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Luyao Cui
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Yang Yang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Wen Zhao
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Ying Zhang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Na Fu
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China
| | - Yuemin Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University and Hebei Key Laboratory of Mechanism of Liver Fibrosis in Chronic Liver Disease, Shijiazhuang, China.
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Sallam M, Batarseh R, Natsheh A, Abbadi J, Al-Fraihat E, Yaseen A, Kaddomi D, Khamees N, Mahafzah A, Şahin GÖ. An update on hepatitis C virus genotype distribution in Jordan: a 12-year retrospective study from a tertiary care teaching hospital in Amman. BMC Infect Dis 2019; 20:3. [PMID: 31892307 PMCID: PMC6938611 DOI: 10.1186/s12879-019-4735-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/24/2019] [Indexed: 11/16/2022] Open
Abstract
Background Nucleic acid hybridization (NAH) of hepatitis C virus (HCV) is a practical and reliable tool for virus genotyping. Genotype assignment is an important factor in the prediction of treatment success in chronic hepatitis C patients. The aim of this study was to determine the genotype distribution among HCV clinical isolates in Jordan between 2007 and 2018. Methods Electronic and paper-based clinical data registry records from 2007 to 2018 at the Jordan University Hospital (JUH) were retrospectively examined for individuals with HCV genotype, HCV viral load, and alanine aminotransferase (ALT) testing results. Genotype determination was based on NAH technique using the HCV 5′ untranslated region (5′ UTR) with 386 requests available from 342 unique individuals. Results A total of 263 out of 342 unique individuals (76.9%) had genotyping results available for final analysis with 259 individuals each having a single genotyping result. The most common HCV genotypes in the study were: genotype 4 (n = 142, 54.0%), genotype 1 (n = 87, 33.1%), genotype 3 (n = 16, 6.1%), genotype 2 (n = 9, 3.4%), other undetermined genotypes (n = 5, 1.9%) and mixed infections (n = 4, 1.5%). Sub-genotyping results were available for 46 individuals as follows: sub-genotype 4c/d (n = 13, 28.3%), sub-genotype 1a (n = 11, 23.9%), sub-genotype 1b (n = 10, 21.7%), sub-genotype 4a (n = 8, 17.4%), sub-genotype 3a (n = 2, 4.3%), sub-genotypes 2a/c and 4 h (n = 1, 2.2% for both). Individuals infected with genotype 1 showed higher viral load when compared to those infected with genotype 4 (p = 0.048, t-test). Younger HCV-infected individuals (< 52 years) had higher ALT levels compared to older individuals (p = 0.036, t-test). Self-reported risk factors for HCV acquisition included: history of previous surgery, invasive dental procedures, and blood transfusion, delivery at home, circumcision at home and wet cupping therapy (hijama). Conclusions High genetic diversity of HCV was found in Jordan, with genotypes 4 and 1 as the most prevalent genotypes co-circulating in the country. Potential impact of virus genotype on disease markers (viral load, ALT) was detected and needs further assessment. The study can be helpful to plan for future prevention and management of HCV infection in Jordan.
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Affiliation(s)
- Malik Sallam
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan. .,Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan. .,Department of Translational Medicine, Faculty of Medicine, Lund University, 22100, Malmö, Sweden.
| | - Rawan Batarseh
- Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan
| | - Anas Natsheh
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan.,Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan
| | - Jumana Abbadi
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan.,Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan
| | - Esraa Al-Fraihat
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan.,Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan
| | - Alaa' Yaseen
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan
| | - Doaa Kaddomi
- Gastroenterology and Liver Division, Department of Internal Medicine, Jordan University Hospital, Amman, 11942, Jordan
| | - Nadia Khamees
- Gastroenterology and Liver Division, Department of Internal Medicine, Jordan University Hospital, Amman, 11942, Jordan
| | - Azmi Mahafzah
- Department of Pathology, Microbiology and Forensic Medicine, School of Medicine, the University of Jordan, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan.,Department of Clinical Laboratories and Forensic Medicine, Jordan University Hospital, Queen Rania Al-Abdullah Street-Aljubeiha, /P.O. Box: 13046, Amman, 11942, Jordan
| | - Gülşen Özkaya Şahin
- Department of Translational Medicine, Faculty of Medicine, Lund University, 22100, Malmö, Sweden.,Department of Clinical Microbiology, Laboratory Medicine, Skåne University Hospital, 22100, Lund, Sweden
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Del-Rios NHA, de Araujo LA, Martins RMB, Guimarães RA, de Matos MAD, Caetano KAA, Pinheiro RS, da Silva França DD, da Silva LN, Teles SA, Dos Santos Carneiro MA. Molecular and epidemiological aspects of hepatitis C virus infection among crack cocaine users. J Med Virol 2019; 92:1239-1245. [PMID: 31746475 DOI: 10.1002/jmv.25632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/18/2019] [Indexed: 11/10/2022]
Abstract
The aim is to investigate the prevalence, risk factors, and hepatitis C virus (HCV) genotypes/subtypes among crack users in-treatment in Central Brazil. A cross-sectional survey in which 600 in-treatment crack users were interviewed and tested for anti-HCV Ab by enzyme-linked immunosorbent assay was conducted between August 2012 and April 2013. Anti-HCV-positive samples were also submitted for HCV RNA detection by polymerase chain reaction. Positive HCV RNA samples were genotyped by direct sequencing analysis of the NS5B region of the viral genome, followed by phylogenetic analysis. Of the total, 3.7% (95.0% CI, 2.4%-5.6%) were anti-HCV positive. Age over 40 years and history of injecting drugs were risk factors for HCV, while snorting cocaine was a protector variable. HCV RNA was detected in 14 of 22 anti-HCV-positive samples, and the genotypes 1 (n = 10) and 3 (n = 2), subtypes 1a (n = 7), 1b (n = 3), and 3a (n = 2) were identified. The HCV prevalence found among crack users is almost threefold that observed in the general population in Brazil supporting that this population is at higher risk for HCV. The findings of cocaine insufflation as a protective behavior for HCV infection in this population should be explored.
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Affiliation(s)
| | | | | | - Rafael Alves Guimarães
- Institute of Tropical Pathology and Public Health, Federal University of Goiás (UFG), Goiás, Brazil
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Ye D, Tang Y, Gu Y, Haleem H, Zhang L, Zhang Y, Xu C, Zhao J. Evaluation of the effectiveness of a pilot study of hospital-based hepatitis C epidemic surveillance. Medicine (Baltimore) 2019; 98:e18334. [PMID: 31860986 PMCID: PMC6940170 DOI: 10.1097/md.0000000000018334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to evaluate the effectiveness of hospital-based hepatitis C epidemic surveillance initiated by China's CDC STD/AIDS (National Center for AIDS/STD Control and Prevention of Chinese Center for Disease Control and Prevention) Prevention and Control Center in 2017.A total of 104,666 anti-hepatitis C virus (HCV) and 633 HCV-RNA detection records in our hospital from 2014 to 2017 were used to analyze the anti-HCV and HCV-RNA detection rates and positive rates in patients before and after implementation of epidemic surveillance.We found that the estimated HCV positive rate was 0.395% in all patients, and this rate increased to 0.533% after the pilot research. The positive rates of anti-HCV were significantly enhanced, although certain differences were observed among different departments. Significant increase of positive rate of HCV-RNA was only found in the inpatients from nonsurgical departments. Eighty-one cases were diagnosed after this pilot research, exceeding the 70 total cases in the previous 3 years. Most cases were diagnosed by nonsurgical departments; the upward trend of the cases diagnosed by surgical departments cannot be ignored.Our study indicates expanding anti-HCV and HCV-RNA detection in the target populations in hospitals is a useful strategy for finding more occult HCV infection. In addition, our results provide useful pilot data of the seroepidemiology of Hepatitis C for the special populations in hospitals, which will provide valuable information for public health research.
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Affiliation(s)
- Dongxian Ye
- Department of Prevention and Health Care, Beilun Branch of the First Affiliated Hospital, College of Medicine, Zhejiang University
| | - Yuqing Tang
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, School of Medicine, Ningbo University, Ningbo, Zhejiang, P.R. China
| | - Yuanliang Gu
- Department of Prevention and Health Care, Beilun Branch of the First Affiliated Hospital, College of Medicine, Zhejiang University
| | - Harris Haleem
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, School of Medicine, Ningbo University, Ningbo, Zhejiang, P.R. China
| | - Libo Zhang
- Department of Prevention and Health Care, Beilun Branch of the First Affiliated Hospital, College of Medicine, Zhejiang University
| | - Youping Zhang
- Department of Prevention and Health Care, Beilun Branch of the First Affiliated Hospital, College of Medicine, Zhejiang University
| | - Chunxia Xu
- Department of Prevention and Health Care, Beilun Branch of the First Affiliated Hospital, College of Medicine, Zhejiang University
| | - Jinshun Zhao
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, School of Medicine, Ningbo University, Ningbo, Zhejiang, P.R. China
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23
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Liu Y, Zou X, Chen W, Gong C, Ling L. Hepatitis C Virus Treatment Status and Barriers among Patients in Methadone Maintenance Treatment Clinics in Guangdong Province, China: A Cross-Sectional, Observational Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16224436. [PMID: 31726750 PMCID: PMC6888391 DOI: 10.3390/ijerph16224436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/31/2019] [Accepted: 11/08/2019] [Indexed: 12/13/2022]
Abstract
We aimed to evaluate the status and barriers related to hepatitis C virus (HCV) treatment among Chinese methadone maintenance treatment (MMT) clients, and the willingness and barriers of patients to accept directly observed treatment (DOT) service and oral direct-acting antivirals (DAAs). We conducted a cross-sectional survey from July to October 2017 in Guangdong Province, China, involving 678 HCV antibody-positive MMT patients. If they reported being infected with HCV, then their HCV treatment experience, willingness to use DOT and DAAs, along with any barriers, were collected. Logistic regression analysis was used to identify the correlates of initiating HCV treatment. Among those reporting HCV infection (54%, 366/678), 39% (144/366) initiated treatment; however, 38% (55/144) interrupted and 55% (79/135) delayed treatment for 15 months. Seventy-five percent (273/366) and 53% (195/366) were willing to use DOT and DAAs, respectively. Unaffordable medical costs and insignificant symptoms were the major barriers to HCV treatment and accepting DOT or DAAs. The lack of a stable residence, being a woman, and having ever injected drugs were all associated with a low probability of initiating treatment (p < 0.05). This study highlights a limited uptake of HCV treatment among MMT patients, and a need to strengthen the popularity of DOT and DAAs and integrate them into Chinese MMT clinics.
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Affiliation(s)
| | | | | | | | - Li Ling
- Correspondence: ; Tel.: +86-020-873-3319
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24
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Walker MR, Leung P, Eltahla AA, Underwood A, Abayasingam A, Brasher NA, Li H, Wu BR, Maher L, Luciani F, Lloyd AR, Bull RA. Clearance of hepatitis C virus is associated with early and potent but narrowly-directed, Envelope-specific antibodies. Sci Rep 2019; 9:13300. [PMID: 31527718 PMCID: PMC6746763 DOI: 10.1038/s41598-019-49454-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/20/2019] [Indexed: 12/13/2022] Open
Abstract
Hepatitis C virus (HCV) is one of very few viruses that are either naturally cleared, or alternatively persist to cause chronic disease. Viral diversity and escape, as well as host adaptive immune factors, are believed to control the outcome. To date, there is limited understanding of the critical, early host-pathogen interactions. The asymptomatic nature of early HCV infection generally prevents identification of the transmitted/founder (T/F) virus, and thus the study of host responses directed against the autologous T/F strain. In this study, 14 rare subjects identified from very early in infection (4–45 days) with varied disease outcomes (n = 7 clearers) were examined in regard to the timing, breadth, and magnitude of the neutralizing antibody (nAb) response, as well as evolution of the T/F strain. Clearance was associated with earlier onset and more potent nAb responses appearing at a mean of 71 days post-infection (DPI), but these responses were narrowly directed against the autologous T/F virus or closely related variants. In contrast, a delayed onset of nAbs (mean 425 DPI) was observed in chronic progressors that appear to have targeted longitudinal variants rather than the T/F strain. The nAb responses in the chronic progressors mapped to known CD81 binding epitopes, and were associated with rapid emergence of new viral variants with reduced CD81 binding. We propose that the prolonged period of viremia in the absence of nAbs in these subjects was associated with an increase in viral diversity, affording the virus greater options to escape nAb pressure once it emerged. These findings indicate that timing of the nAb response is essential for clearance. Further investigation of the specificities of the early nAbs and the factors regulating early induction of protective nAbs is needed.
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Affiliation(s)
- Melanie R Walker
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Preston Leung
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Auda A Eltahla
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Alexander Underwood
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Arunasingam Abayasingam
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Nicholas A Brasher
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Hui Li
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Bing-Ru Wu
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Lisa Maher
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia
| | - Fabio Luciani
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia
| | - Andrew R Lloyd
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia
| | - Rowena A Bull
- Viral Immunology Systems Program, The Kirby Institute, Sydney, Australia. .,School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, Australia.
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25
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Shokri S, Mahmoudvand S, Taherkhani R, Farshadpour F, Jalalian FA. Complexity on modulation of NF-κB pathways by hepatitis B and C: A double-edged sword in hepatocarcinogenesis. J Cell Physiol 2019; 234:14734-14742. [PMID: 30741410 DOI: 10.1002/jcp.28249] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/17/2019] [Accepted: 01/22/2019] [Indexed: 01/24/2023]
Abstract
Nuclear factor-κB (NF-κB), a family of master regulated dimeric transcription factors, signaling transduction pathways are active players in the cell signaling that control vital cellular processes, including cell growth, proliferation, differentiation, apoptosis, morphogenesis, angiogenesis, and immune responses. Nevertheless, aberrant regulation of the NF-κB signaling pathways has been associated with a significant number of human cancers. In fact, NF-κB acts as a double-edged sword in the vital cellular processes and carcinogenesis. This review provides an overview on the modulation of the NF-κB signaling pathways by proteins of hepatitis B and C viruses. One of the major NF-κB events that are modulated by these viruses is the induction of hepatocellular carcinoma. Given the central function of NF-κB in carcinogenesis, it has turned out to be a considerable therapeutic target for cancer therapy.
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Affiliation(s)
- Somayeh Shokri
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Shahab Mahmoudvand
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Reza Taherkhani
- The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Fatemeh Farshadpour
- The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Farid Azizi Jalalian
- Department of Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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26
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Sira J, Brown M, Ambegaokar S, Modin L, Kelly DA. The necessity of education and hepatitis B vaccination for young people: A study of high risk behaviour for blood borne viruses in the United Kingdom. J Child Health Care 2019; 23:437-445. [PMID: 30818996 DOI: 10.1177/1367493519831499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Blood borne virus (BBV) infection in adults involved in high risk behaviour is well recognized. There are limited reported data on young people involved in high risk behaviour. A descriptive questionnaire was used to ascertain risk behaviour at the Young People's Substance Misuse Service (Birmingham). Data collection included risk behaviour and serological tests for hepatitis B, C and HIV. Sixty-five of one-hundred three (63%) young people participated; 37/65 male; age range 13.9-18.9 (median 17.4 years). Risk behaviour included 6 intravenous drug, 58 cannabis, and 61 had sexual partners, of whom 52 (85%) engaged in unprotected sex. Sixty-five participants were negative for BBV infection: 9 were HBV immune. HB vaccination was not available at the centre (for <18 year), and all refused referral to their general practitioner for vaccination due to fear of disclosure. The main risk for BBV acquisition was unprotected sex with multiple sexual partners and illicit drug use. Most were unaware of the risks related to high risk behaviour. Effective education programmes of relevant risk factors with HBV vaccination should be implemented during preadolescence. We recommend an integrated service via specialized centres, to work together to improve awareness and increase efforts to vaccinate adolescents at risk for HBV infection.
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Affiliation(s)
- J Sira
- 1 Liver Unit, Birmingham Women and Children's Hospital NHS Trust (BWCH), Birmingham, UK
| | - M Brown
- 1 Liver Unit, Birmingham Women and Children's Hospital NHS Trust (BWCH), Birmingham, UK
| | - S Ambegaokar
- 2 Child and Adolescent Mental Health Services (CAMHS), Birmingham Children's Hospital NHS Trust (BCH), Birmingham, UK
| | - L Modin
- 1 Liver Unit, Birmingham Women and Children's Hospital NHS Trust (BWCH), Birmingham, UK
| | - D A Kelly
- 1 Liver Unit, Birmingham Women and Children's Hospital NHS Trust (BWCH), Birmingham, UK
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27
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Damola AB, Adeniji JA, Bakarey AS. Hepatitis C virus seropositivity and the risk factors for transmission among blood donors in some selected centers in Lagos State, Southwest Nigeria. J Immunoassay Immunochem 2019; 40:528-539. [PMID: 31378189 DOI: 10.1080/15321819.2019.1647853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Introduction: Hepatitis C virus (HCV) infects about 0.5% to 2.3% of the world population with most of the cases occurring in developing countries. It is primarily transmitted through transfusion of blood and blood products. There exists dearth of information on burden and circulation of HCV and their attendant health challenges in Nigeria. This study was therefore designed to determine the seroprevalence rate and risk of HCV transmission among blood donors in Lagos State Nigeria. Methodology: Blood samples were collected between January 2002 and December 2006 from 3,002 consenting (Male = 2,922; Female = 80; Age range = 18-63; Median age = 32 years) donors in five selected public hospitals' blood donation centers between 2002 and 2006. Sera was tested for anti-HCV by ELISA technique. Demographic and other relevant information were obtained by a semi-structured questionnaire to assess risk factors for HCV transmission. Results: This study found an overall rate of 3.1% for anti-HCV among the blood donors sampled. Highest rate of 6.0% for HCV was found among participants age ranged ≥50 years and lowest in the age group 40-49 years. Prevalence of HCV was higher in female (6.3%) than in male (3.0%) and was 0.21 times less risky in female compared to their male counterparts (OR = 1.29, 95%CI 0.11-1.31). By location, MSCH had the highest HCV rate (3.9%) and lowest (2.1%) in GHOA. Sharing of sharps for tattoo/tribal markings had a statistical association (p = .0379) with HCV infection. However, no significant difference was found by gender (CI = 0.99-2.01; p = .1002), age (CI = 0.79-1.55; p = .1001) and location (p = .5326). Conclusion: The relatively high prevalence of HCV infection detected and the risk of transmission among blood donors in this study are of public health importance. Hence, the institution of appropriate measures to stem down the trend of HCV circulation among this population in Nigeria is therefore advocated.
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Affiliation(s)
- A B Damola
- Department of Virology, College of Medicine, University of Ibadan , Ibadan , Nigeria
| | - J A Adeniji
- Department of Virology, College of Medicine, University of Ibadan , Ibadan , Nigeria
| | - A S Bakarey
- Institute for Advanced Medical Research & Training, College of Medicine, University College Hospital, University of Ibadan , Ibadan , Nigeria
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28
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Petruzziello A, Loquercio G, Sabatino R, Balaban DV, Ullah Khan N, Piccirillo M, Rodrigo L, di Capua L, Guzzo A, Labonia F, Botti G. Prevalence of Hepatitis C virus genotypes in nine selected European countries: A systematic review. J Clin Lab Anal 2019; 33:e22876. [PMID: 30843304 PMCID: PMC6595292 DOI: 10.1002/jcla.22876,] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) infection is a global health problem especially for its increasing level of mortality. Detailed knowledge of HCV genotypes prevalence has clinical relevance since the efficacy of therapies is impacted by genotypes and subtypes distribution. Moreover, HCV exhibits a great genetic variability regionally. To date, there are no published studies assessing HCV genotypes distribution in specific countries of the Mediterranean basin. The aim of this study was to review data published from 2000 to 2017 with the purpose to estimate genotypes distribution of HCV infection in nine European countries all located in the Mediterranean basin. METHODS A systematic research of peer-reviewed journals indexed in PubMed, Scopus, and EMBASE databases selected if containing data regarding distribution of HCV genotypes in nine selected European countries (Albania, Bosnia, Croatia, France, Greece, Italy, Montenegro, Slovenia, and Spain) was performed. RESULTS Genotype 1 is the most common (61.0%), ranging from 80.0% in Croatia to 46.0% in Greece, followed by genotype 3 (20.0%), varying from 38.0% in Slovenia to 7.0% and 8.0%, respectively, in Italy and in Albania and by genotype 4 (10.0%) that shows an increase of 1.1% with respect to data obtained till 2014 probably due to the increasing migrants arrivals to Southern Europe. G2, the fourth most frequent genotype (8.5%), particularly common in Italy (27.0%) and Albania (18.0%) might be probably introduced in Southern Italy as a result of Albanian campaign during Second World War and more and more increased by the migration flows from Albania to Italy in the 90s. CONCLUSION Epidemiology of HCV infection shows a high variability across the European countries that border the Mediterranean Sea. HCV genotyping is a relevant tool to monitor the dynamic process influenced by both evolving transmission trends and new migration flows on HCV scenario.
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Affiliation(s)
| | - Giovanna Loquercio
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Rocco Sabatino
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Daniel Vasile Balaban
- Carol Davila" University of Medicine and Pharmacy, "Dr. Carol Davila" Central Military Emergency University HospitalBucharestRomania
| | - Najeeb Ullah Khan
- Institute of Biotechnology and Genetic Engineering (Health Davison)The University of AgriculturePeshawarPakistan
| | - Mauro Piccirillo
- Hepatobiliar and Pancreatic Unit, Department of Surgical OncologyIstituto Nazionale Tumori–Fondazione “G. Pascale”IRCCS ItaliaNaplesItaly
| | - Luis Rodrigo
- Gastroenterology ServiceHospital Universitario Central de Asturias, University of OviedoOviedoSpain
| | - Lucia di Capua
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Annunziata Guzzo
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Francesco Labonia
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Gerardo Botti
- Scientific DirectorIRCCS Fondazione PascaleNaplesItaly
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29
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Petruzziello A, Loquercio G, Sabatino R, Balaban DV, Ullah Khan N, Piccirillo M, Rodrigo L, di Capua L, Guzzo A, Labonia F, Botti G. Prevalence of Hepatitis C virus genotypes in nine selected European countries: A systematic review. J Clin Lab Anal 2019; 33:e22876. [PMID: 30843304 PMCID: PMC6595292 DOI: 10.1002/jcla.22876] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) infection is a global health problem especially for its increasing level of mortality. Detailed knowledge of HCV genotypes prevalence has clinical relevance since the efficacy of therapies is impacted by genotypes and subtypes distribution. Moreover, HCV exhibits a great genetic variability regionally. To date, there are no published studies assessing HCV genotypes distribution in specific countries of the Mediterranean basin. The aim of this study was to review data published from 2000 to 2017 with the purpose to estimate genotypes distribution of HCV infection in nine European countries all located in the Mediterranean basin. METHODS A systematic research of peer-reviewed journals indexed in PubMed, Scopus, and EMBASE databases selected if containing data regarding distribution of HCV genotypes in nine selected European countries (Albania, Bosnia, Croatia, France, Greece, Italy, Montenegro, Slovenia, and Spain) was performed. RESULTS Genotype 1 is the most common (61.0%), ranging from 80.0% in Croatia to 46.0% in Greece, followed by genotype 3 (20.0%), varying from 38.0% in Slovenia to 7.0% and 8.0%, respectively, in Italy and in Albania and by genotype 4 (10.0%) that shows an increase of 1.1% with respect to data obtained till 2014 probably due to the increasing migrants arrivals to Southern Europe. G2, the fourth most frequent genotype (8.5%), particularly common in Italy (27.0%) and Albania (18.0%) might be probably introduced in Southern Italy as a result of Albanian campaign during Second World War and more and more increased by the migration flows from Albania to Italy in the 90s. CONCLUSION Epidemiology of HCV infection shows a high variability across the European countries that border the Mediterranean Sea. HCV genotyping is a relevant tool to monitor the dynamic process influenced by both evolving transmission trends and new migration flows on HCV scenario.
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Affiliation(s)
| | - Giovanna Loquercio
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Rocco Sabatino
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Daniel Vasile Balaban
- Carol Davila" University of Medicine and Pharmacy, "Dr. Carol Davila" Central Military Emergency University HospitalBucharestRomania
| | - Najeeb Ullah Khan
- Institute of Biotechnology and Genetic Engineering (Health Davison)The University of AgriculturePeshawarPakistan
| | - Mauro Piccirillo
- Hepatobiliar and Pancreatic Unit, Department of Surgical OncologyIstituto Nazionale Tumori–Fondazione “G. Pascale”IRCCS ItaliaNaplesItaly
| | - Luis Rodrigo
- Gastroenterology ServiceHospital Universitario Central de Asturias, University of OviedoOviedoSpain
| | - Lucia di Capua
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Annunziata Guzzo
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Francesco Labonia
- SSD Virology and Molecular Biology, Department of Diagnostic AreaIstituto Nazionale Tumori – Fondazione “G. Pascale”, IRCCS ItaliaNaplesItaly
| | - Gerardo Botti
- Scientific DirectorIRCCS Fondazione PascaleNaplesItaly
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30
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El Aggan H, Farahat N, El Deeb N, Zeid A, El-Shendidi A. Peripheral blood and hepatic Toll-like receptor 7 expression and interferon lambda 1 levels in chronic hepatitis C: Relation to virus replication and liver injury. Microb Pathog 2019; 131:65-74. [PMID: 30926417 DOI: 10.1016/j.micpath.2019.03.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 03/23/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Toll-like receptor 7 (TLR7) can recognize single-stranded RNA viruses like hepatitis C virus (HCV) with subsequent induction of different interferon (IFN) types including IFN lambda (IFNL), which activate an immediate anti-viral response. However, the role of TLR7 in inflammation and fibrosis, characteristics of HCV-induced liver injury, is still controversial. The present work was designed to investigate the potential role of TLR7 and IFNL1 in chronic hepatitis C (CHC) in relation to viral replication and liver injury. METHODS Forty two treatment-naïve patients with CHC and 20 healthy subjects were enrolled in the study. TLR7 expression on peripheral blood CD14+ monocytes was studied by color flow cytometry and the frequency of TLR7+CD14+ cells was expressed as percentage of total monocyte count. Quantification of IFNL1 levels in serum was determined using enzyme-linked immunosorbant assay. Liver biopsies were examined for assessment of histological activity grade (A0-A3) and fibrosis stage (F0-F4) according to METAVIR scoring system as well as steatosis grade. Immunohistochemical staining was performed using human antibodies against TLR7 and IFNL1 and was scored semi-quantitatively (score 0-3). Hepatic expression of TLR7 and IFNL1 was further classified using a two-grade scale as low expression (score 0 or 1) and high expression (score 2 or 3). RESULTS Percentages of circulating TLR7+CD14+ monocytes and serum IFNL1 levels were significantly higher in patients with CHC than in healthy controls (P = 0.025 and P < 0.001 respectively) and were positively correlated with corresponding hepatic TLR7 and IFNL1 expression (P < 0.001 and P = 0.010 respectively). Significantly lower peripheral blood and hepatic TLR7 expression and IFNL1 levels were found in patients with viral loads between 200,000-600,000 IU/ml and >600,000 IU/ml than in those with viral load <200,000 IU/ml (P < 0.05), in patients with severe necroinflammation than in those with mild-to-moderate necroinflammation (P < 0.05) and in patients with advanced fibrosis than in those with early fibrosis (P < 0.01). Also, changes in TLR7 expression and IFNL1 production in peripheral blood and the liver were inversely correlated with serum levels of aspartate and alanine aminotransferases (P < 0.05) and HCV RNA (P < 0.01), histological activity grade (P < 0.01) and fibrosis stage (P < 0.01). By plotting receiver operating characteristics (ROC) curve, serum IFNL1 showed higher sensitivity and specificity than percentages of circulating TLR7+CD14+ monocytes in discriminating patients with CHC according to the severity of hepatic necroinflammation (area under the curve (AUC) = 0.901 vs. 0.816 respectively) and fibrosis (AUC = 0.971 vs. 0.825 respectively) at a cut-off value of 44.75 pg/ml and 10.25% respectively. CONCLUSIONS TLR7 activation and IFNL1 production in CHC may play an important role in controlling viral replication and limiting hepatic inflammation and fibrosis and their downregulation may result in viral persistence and disease progression. The immunoregulatory role of TLR7-IFNL1 pathway in the pathogenesis of chronic HCV infection should be further studied. Clinical trials with a large number of patients are needed to assess the usefulness of serum IFNL1 as a potential biomarker for severity of liver injury in chronic HCV infection and other liver diseases.
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Affiliation(s)
- Hoda El Aggan
- Department of Internal Medicine (Hepatobiliary Unit), Faculty of Medicine, University of Alexandria, Egypt.
| | - Nahla Farahat
- Department of Clinical and Chemical Pathology, Faculty of Medicine, University of Alexandria, Egypt
| | - Nevine El Deeb
- Department of Pathology, Faculty of Medicine, University of Alexandria, Egypt
| | - Ahmed Zeid
- Department of Internal Medicine (Hepatobiliary Unit), Faculty of Medicine, University of Alexandria, Egypt
| | - Assem El-Shendidi
- Department of Internal Medicine (Hepatobiliary Unit), Faculty of Medicine, University of Alexandria, Egypt
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31
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Williams B, Howell J, Doyle J, Thompson AJ, Draper B, Layton C, Latham N, Bramwell F, Membrey D, Mcpherson M, Roney J, Stoové M, Hellard ME, Pedrana A. Point-of-care hepatitis C testing from needle and syringe programs: An Australian feasibility study. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2019; 72:91-98. [PMID: 31129023 DOI: 10.1016/j.drugpo.2019.05.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/10/2019] [Accepted: 05/11/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Achieving hepatitis C elimination requires novel approaches to engage people at highest risk of infection into care pathways. Point-of-care-tests may help to overcome some of the barriers preventing people who inject drugs (PWID) accessing testing and progressing to treatment for hepatitis C virus (HCV). We assessed the feasibility and acceptability of HCV point-of-care testing at needle and syringe exchange programs (NSPs) co-located in three community health clinics in Melbourne, Australia. METHODS NSP clients were offered an oral fluid point-of-care test for HCV antibody by NSP staff. Positive HCV antibody tests were followed by a point-of-care test for HCV RNA alongside standard-of-care laboratory testing for hepatitis C treatment work-up. Participants were offered same-day point-of-care results on site, via phone or text message, or upon return to the service. Participants were scheduled for follow-up review with the study nurse for assessment and linkage to treatment. RESULTS A total of 174 participants completed HCV antibody point-of-care test; 150 (86%) had a reactive result. Of these, 140 (93%) underwent a HCV RNA point-of-care test and 76 (54%) tested positive; few participants (5%) waited on site for results delivery, but the majority of RNA positive (63%) attended a follow-up visit for treatment work-up (median time to follow-up visit = 11 days; IQR = 7-20 days). The majority of participants reported a preference for point-of-care tests (66%) and supported NSP staff involvement in testing (90%). CONCLUSION Provision of HCV point-of-care tests, follow-up and linkage to treatment services through NSPs was feasible and acceptable to PWID. Despite few participants waiting to receive same-day results, there was effective linkage to care, suggesting value in further evaluation of this approach.
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Affiliation(s)
- Bridget Williams
- Disease Elimination Program, Burnet Institute, Melbourne, Australia.
| | - Jessica Howell
- Disease Elimination Program, Burnet Institute, Melbourne, Australia; School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia; Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia; Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Joseph Doyle
- Disease Elimination Program, Burnet Institute, Melbourne, Australia; Department of Infectious Diseases, The Alfred and Monash University, Melbourne, Australia
| | - Alexander J Thompson
- Department of Gastroenterology, St Vincent's Hospital, Melbourne, Australia; Department of Medicine, University of Melbourne, Melbourne, Australia
| | - Bridget Draper
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Chloe Layton
- Cohealth, General Practice, Melbourne, Australia
| | - Ned Latham
- Disease Elimination Program, Burnet Institute, Melbourne, Australia; Department of Infectious Diseases, Monash University, Melbourne, Australia
| | | | - Dean Membrey
- Cohealth, General Practice, Melbourne, Australia
| | - Maggie Mcpherson
- North Richmond Community Health, General Practice, Melbourne, Australia
| | - Janine Roney
- Department of Infectious Diseases, The Alfred, Melbourne, Australia
| | - Mark Stoové
- Disease Elimination Program, Burnet Institute, Melbourne, Australia
| | - Margaret E Hellard
- Disease Elimination Program, Burnet Institute, Melbourne, Australia; School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia; Department of Infectious Diseases, The Alfred and Monash University, Melbourne, Australia
| | - Alisa Pedrana
- Disease Elimination Program, Burnet Institute, Melbourne, Australia; School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
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Marascio N, Quirino A, Barreca GS, Galati L, Costa C, Pisani V, Mazzitelli M, Matera G, Liberto MC, Focà A, Torti C. Discussion on critical points for a tailored therapy to cure hepatitis C virus infection. Clin Mol Hepatol 2019; 25:30-36. [PMID: 30669818 PMCID: PMC6435970 DOI: 10.3350/cmh.2018.0061] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/22/2018] [Accepted: 12/06/2018] [Indexed: 12/19/2022] Open
Abstract
Hepatitis C virus (HCV) infects around 71 million people worldwide and in 2018 it is still a major health problem. Since 2011, anti-HCV therapy with availability of direct-acting antiviral drugs has revolutionized the clinical response and paved the way to eradication strategies. However, despite the high rate of sustained virological response, treatment failure may occur in a limited percentage of patients, possibly due to resistance-associated substitutions (RASs), either emergent or pre-existent even in minority viral populations. Clearly this problem may impair success of eradication strategies. With this background, several questions marks still exist around HCV treatment, including whether pan-genotypic treatments with complete effectiveness in any clinical conditions really exist outside clinical trials, the actual cost-effectiveness of genotyping testing, and utility of RAS detection in viral quasispecies by next generation sequencing approach. In this review, we describe these critical points by discussing recent literature data and our research experience.
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Affiliation(s)
- Nadia Marascio
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Angela Quirino
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Giorgio Settimo Barreca
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Luisa Galati
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Chiara Costa
- Department of Health Sciences, Department of Medical and Surgical Sciences, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Vincenzo Pisani
- Department of Health Sciences, Department of Medical and Surgical Sciences, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Maria Mazzitelli
- Department of Health Sciences, Department of Medical and Surgical Sciences, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Giovanni Matera
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Maria Carla Liberto
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Alfredo Focà
- Department of Health Sciences, Unit of Clinical Microbiology, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
| | - Carlo Torti
- Department of Health Sciences, Department of Medical and Surgical Sciences, Unit of Infectious and Tropical Diseases, Magna Graecia University, Catanzaro, Italy
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Moustafa RI, Dubuisson J, Lavie M. Function of the HCV E1 envelope glycoprotein in viral entry and assembly. Future Virol 2019. [DOI: 10.2217/fvl-2018-0180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
HCV envelope glycoproteins, E1 and E2, are multifunctional proteins. Until recently, E2 glycoprotein was thought to be the fusion protein and was the focus of investigations. However, the recently obtained partial structures of E2 and E1 rather support a role for E1 alone or in association with E2 in HCV fusion. Moreover, they suggest that HCV harbors a new fusion mechanism, distinct from that of other members of the Flaviviridae family. In this context, E1 aroused a renewed interest. Recent functional characterizations of E1 revealed a more important role than previously thought in entry and assembly. Thus, E1 is involved in the viral genome encapsidation step and influences the association of the virus with lipoprotein components. Moreover, E1 modulates HCV–receptor interaction and participates in a late entry step potentially fusion. In this review, we outline our current knowledge on E1 functions in HCV assembly and entry.
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Affiliation(s)
- Rehab I Moustafa
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – CIIL– Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
- Department of Microbial Biotechnology, Genetic Engineering & Biotechnology Division, National Research Center, Dokki, Cairo, Egypt
| | - Jean Dubuisson
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – CIIL– Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
| | - Muriel Lavie
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – CIIL– Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France
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Coutinho C, Bastos LS, da Mota JC, Toledo L, Costa K, Bertoni N, Bastos FI. The risks of HCV infection among Brazilian crack cocaine users: incorporating diagnostic test uncertainty. Sci Rep 2019; 9:443. [PMID: 30679480 PMCID: PMC6346030 DOI: 10.1038/s41598-018-35657-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/31/2018] [Indexed: 01/28/2023] Open
Abstract
Despite the initiative by WHO and other international organizations to eliminate HCV in the medium term, hepatitis C infection is still a major public health problem. Even non-injecting drugs users who engage in harmful or addictive drug use are at greater risk of acquiring the infection, when compared to the general population. This study evaluate risk factors for HCV infection in users of crack/cocaine in Brazil, using multilevel models that incorporate variations in the sensitivity and specificity of the respective diagnostic tests. The sample included all the participants of a national survey on street crack cocaine users with serologically reactive result in the rapid test for the HCV as well as 4 non-reactive controls, matched by sex, age category, and major geographic region of residence. Multilevel logistic regression models were used, with and without incorporation of the diagnostic test’s sensitivity and specificity values. The odds of HCV infection were 85% higher among polydrug users, 7.81 times higher among injecting drug users, and 3.69 times higher in those reporting to have genital ulcers. Statistical modeling strategies that incorporate the sensitivity and specificity of diagnostic tests in challenging settings are useful for studying the association between risk factors and infection status.
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Affiliation(s)
- Carolina Coutinho
- Institute of Scientific and Technological Communication and Information in Health (ICICT), FIOCRUZ, Rio de Janeiro, Brazil. .,Program of Epidemiology in Public Health, Sergio Arouca National School of Public Health (ENSP), FIOCRUZ, Rio de Janeiro, Brazil.
| | | | - Jurema Corrêa da Mota
- Institute of Scientific and Technological Communication and Information in Health (ICICT), FIOCRUZ, Rio de Janeiro, Brazil
| | - Lidiane Toledo
- Institute of Scientific and Technological Communication and Information in Health (ICICT), FIOCRUZ, Rio de Janeiro, Brazil
| | - Katia Costa
- Institute of Scientific and Technological Communication and Information in Health (ICICT), FIOCRUZ, Rio de Janeiro, Brazil
| | - Neilane Bertoni
- Division of Epidemiology, National Cancer Institute (INCa), Rio de Janeiro, Brazil
| | - Francisco I Bastos
- Institute of Scientific and Technological Communication and Information in Health (ICICT), FIOCRUZ, Rio de Janeiro, Brazil
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Mahmoudvand S, Shokri S, Taherkhani R, Farshadpour F. Hepatitis C virus core protein modulates several signaling pathways involved in hepatocellular carcinoma. World J Gastroenterol 2019; 25:42-58. [PMID: 30643357 PMCID: PMC6328967 DOI: 10.3748/wjg.v25.i1.42] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/07/2018] [Accepted: 12/13/2018] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cancer, and hepatitis C virus (HCV) infection plays a major role in HCC development. The molecular mechanisms by which HCV infection leads to HCC are varied. HCV core protein is an important risk factor in HCV-associated liver pathogenesis and can modulate several signaling pathways involved in cell cycle regulation, cell growth promotion, cell proliferation, apoptosis, oxidative stress and lipid metabolism. The dysregulation of signaling pathways such as transforming growth factor β (TGF-β), vascular endothelial growth factor (VEGF), Wnt/β-catenin (WNT), cyclooxygenase-2 (COX-2) and peroxisome proliferator-activated receptor α (PPARα) by HCV core protein is implicated in the development of HCC. Therefore, it has been suggested that this protein be considered a favorable target for further studies in the development of HCC. In addition, considering the axial role of these signaling pathways in HCC, they are considered druggable targets for cancer therapy. Therefore, using strategies to limit the dysregulation effects of core protein on these signaling pathways seems necessary to prevent HCV-related HCC.
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Affiliation(s)
- Shahab Mahmoudvand
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6135715794, Iran
- Department of Medical Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan 6517838736, Iran
| | - Somayeh Shokri
- Department of Virology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6135715794, Iran
- Department of Medical Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan 6517838736, Iran
| | - Reza Taherkhani
- The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
| | - Fatemeh Farshadpour
- The Persian Gulf Tropical Medicine Research Center, Bushehr University of Medical Sciences, Bushehr 7514633341, Iran
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Brenner N, Mentzer AJ, Butt J, Braband KL, Michel A, Jeffery K, Klenerman P, Gärtner B, Schnitzler P, Hill A, Taylor G, Demontis MA, Guy E, Hadfield SJ, Almond R, Allen N, Pawlita M, Waterboer T. Validation of Multiplex Serology for human hepatitis viruses B and C, human T-lymphotropic virus 1 and Toxoplasma gondii. PLoS One 2019; 14:e0210407. [PMID: 30615688 PMCID: PMC6322760 DOI: 10.1371/journal.pone.0210407] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/21/2018] [Indexed: 01/16/2023] Open
Abstract
Multiplex Serology is a high-throughput technology developed to simultaneously measure specific serum antibodies against multiple pathogens in one reaction vessel. Serological assays for hepatitis B (HBV) and C (HCV) viruses, human T-lymphotropic virus 1 (HTLV-1) and the protozoan parasite Toxoplasma gondii (T. gondii) were developed and validated against established reference assays. For each pathogen, between 3 and 5 specific antigens were recombinantly expressed as GST-tag fusion proteins in Escherichia coli and tested in Monoplex Serology, i.e. assays restricted to the antigens from one particular pathogen. For each of the four pathogen-specific Monoplex assays, overall seropositivity was defined using two pathogen-specific antigens. In the case of HBV Monoplex Serology, the detection of past natural HBV infection was validated based on two independent reference panels resulting in sensitivities of 92.3% and 93.0%, and specificities of 100% in both panels. Validation of HCV and HTLV-1 Monoplex Serology resulted in sensitivities of 98.0% and 95.0%, and specificities of 96.2% and 100.0%, respectively. The Monoplex Serology assay for T. gondii was validated with a sensitivity of 91.2% and specificity of 92.0%. The developed Monoplex Serology assays largely retained their characteristics when they were included in a multiplex panel (i.e. Multiplex Serology), containing additional antigens from a broad range of other pathogens. Thus HBV, HCV, HTLV-1 and T. gondii Monoplex Serology assays can efficiently be incorporated into Multiplex Serology panels tailored for application in seroepidemiological studies.
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Affiliation(s)
- Nicole Brenner
- Infections and Cancer Epidemiology, Infection, Inflammation and Cancer Research Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Alexander J. Mentzer
- The Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, United Kingdom
| | - Julia Butt
- Infections and Cancer Epidemiology, Infection, Inflammation and Cancer Research Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Kathrin L. Braband
- Infections and Cancer Epidemiology, Infection, Inflammation and Cancer Research Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Angelika Michel
- Infections and Cancer Epidemiology, Infection, Inflammation and Cancer Research Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Katie Jeffery
- Department of Microbiology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Paul Klenerman
- Department of Microbiology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
- NIHR Biomedical Research Centre, Oxford, United Kingdom
| | - Barbara Gärtner
- Institut für Medizinische Mikrobiologie und Hygiene, Universität des Saarlands, Homburg, Germany
| | - Paul Schnitzler
- Center for Infectious Diseases, Virology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Adrian Hill
- The Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- The Jenner Institute, University of Oxford, Oxford, United Kingdom
| | - Graham Taylor
- Molecular Diagnostic Unit, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Maria A. Demontis
- Molecular Diagnostic Unit, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Edward Guy
- Toxoplasma Reference Unit, Public Health Wales Microbiology, Swansea, United Kingdom
| | - Stephen J. Hadfield
- Toxoplasma Reference Unit, Public Health Wales Microbiology, Swansea, United Kingdom
| | | | - Naomi Allen
- UK Biobank, Stockport, United Kingdom
- Nuffield Department of Population Health, Medical Sciences Division, University of Oxford, Oxford, United Kingdom
| | - Michael Pawlita
- Molecular Diagnostics of Oncogenic Infections Division, Infection, Inflammation and Cancer Research Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tim Waterboer
- Infections and Cancer Epidemiology, Infection, Inflammation and Cancer Research Program, German Cancer Research Center (DKFZ), Heidelberg, Germany
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Nguyen E, Trinh S, Trinh H, Nguyen H, Nguyen K, Do A, Levitt B, Do S, Nguyen M, Purohit T, Shieh E, Nguyen MH. Sustained virologic response rates in patients with chronic hepatitis C genotype 6 treated with ledipasvir+sofosbuvir or sofosbuvir+velpatasvir. Aliment Pharmacol Ther 2019; 49:99-106. [PMID: 30467877 DOI: 10.1111/apt.15043] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/19/2018] [Accepted: 10/10/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hepatitis C virus (HCV) genotype 6 (GT 6) is the predominant genotype among certain Asian populations. The availability of newer DAA options is limited in many parts of Asia. AIM To compare sustained virologic response (SVR-12) rates between ledipasvir and sofosbuvir (LDV+SOF) and velpatasvir+SOF (SOF+VEL) for patients with HCVGT6 infection. METHOD Retrospective study of consecutive adult HCVGT6 patients identified via ICD 9 code: 070.5 from United States treatment centers. Treatment was LDV+SOF or SOF+VEL for 8-24 weeks. A 1:1 propensity score matching (PSM) on HCV RNA, cirrhosis, alanine aminotransferase, aspartate aminotransferase, platelets, and fibrosis score was conducted among the treatment-naïve HCVGT6 patients to balance groups and isolate treatment effects. RESULTS After exclusion criteria, 149 patients remained (n = 135 treatment-naïve; n = 14 treatment-experienced). The mean age was 63.8 ± 10.2 years, 66.9% male, and 93.9% Vietnamese. In treatment-naïve arm, 52.2% LDV+SOF cohort were cirrhotic compared to 11.6% SOF+VEL cohort (P < 0.0001). SVR-12 for LDV+SOF was 96.4% and 100% for the SOF+VEL cohort (P = 0.22). SVR-12 for cirrhotic patients was 95.4% (n = 41/43) for LDV+SOF and 100.0% (n = 5/5) for SOF+VEL (P = 0.62). After PSM (n = 33 per group), LDV+SOF SVR-12 rate was 97.0% compared to SOF+VEL SVR-12 of 100% (P = 0.31). The treatment-experienced group (n = 14), were all treated with LDV+SOF with an SVR-12 of 92.3%. CONCLUSION Whether treatment-naïve, treatment-experienced, or cirrhotic patients with HCV GT 6 residing in the US had excellent outcomes when treated with SOF+VEL or LDV+SOF. Since LDV+SOF is more readily available globally, our results may provide clinicians with a treatment option when cost and availability limit the treatment choice.
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Affiliation(s)
| | - Sam Trinh
- Division of Gastroenterology and Hepatology, Stanford University, Stanford, California
| | - Huy Trinh
- San Jose Gastroenterology, San Jose, California
| | - Huy Nguyen
- San Jose Gastroenterology, San Jose, California
| | | | - Aivien Do
- Digestive Health Associates of Texas, P.A., Richardson, Texas
| | | | - Son Do
- Digestive Health Associates of Texas, P.A., Richardson, Texas
| | - My Nguyen
- San Jose Gastroenterology, San Jose, California
| | | | | | - Mindie H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University, Stanford, California
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Dominguez-Molina B, Machmach K, Perales C, Tarancon-Diez L, Gallego I, Sheldon JL, Leal M, Domingo E, Ruiz-Mateos E. Toll-Like Receptor 7 (TLR-7) and TLR-9 Agonists Improve Hepatitis C Virus Replication and Infectivity Inhibition by Plasmacytoid Dendritic Cells. J Virol 2018; 92:e01219-18. [PMID: 30232187 PMCID: PMC6232477 DOI: 10.1128/jvi.01219-18] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 08/27/2018] [Indexed: 12/20/2022] Open
Abstract
Plasmacytoid dendritic cells (pDCs) are innate immune cells with high antiviral activity triggered by Toll-like receptor 7 (TLR-7) and TLR-9 stimulation. Moreover, they are important mediators between innate and adaptive immunity. Although nowadays there is available an effective therapeutic arsenal against hepatitis C virus (HCV), a protective vaccine is not available. We have analyzed the pDCs' response to HCV infection in a hepatitis C virus (HCV)-Huh7.5 virus-cell system, which allows completion of the virus infectious cycle. pDCs were cocultured following human immunodeficiency virus (HIV) aldrithiol-2 (AT-2 [TLR-7 agonist]) inactivation and CpG (TLR-9 agonist) stimulation. We employed three virus derivatives-wild-type Jc1, interferon (IFN)-resistant virus IR, and high-replicative-fitness virus P100-in order to explore additional IFN-α-related virus inhibition mechanisms. pDCs inhibited HCV infectivity and replication and produced IFN-α. After TLR-7 and TLR-9 stimulation, inhibition of infectivity and IFN-α production by pDCs were enhanced. TLR-7 stimulation drove higher TNF-related apoptosis-inducing ligand (TRAIL) expression in pDCs. Additionally, TLR-7- and TLR-9-stimulated pDCs exhibited a mature phenotype, improving the antigen presentation and lymph node homing-related markers. In conclusion, pDCs could serve as a drug target against HCV in order to improve antiviral activity and as an enhancer of viral immunization.IMPORTANCE We implemented a coculture system of pDCs with HCV-infected hepatoma cell line, Huh7.5. We used three HCV derivatives in order to gain insight into pDCs' behavior against HCV and associated antiviral mechanisms. The results with this cell coculture system support the capacity of pDCs to inhibit HCV replication and infectivity mainly via IFN-α, but also through additional mechanisms associated with pDC maturation. We provided evidence that TLR agonists can enhance antiviral pDCs' function and can induce phenotypic changes that may facilitate the interplay with other immune cells. These findings suggest the possibility of including TLR agonists in the strategies of HCV vaccine development.
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Affiliation(s)
- B Dominguez-Molina
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital, Seville, Spain
| | - K Machmach
- Department of Medical Microbiology and Immunology, University of California, Davis, California, USA
- California National Primate Research Center, Davis, California, USA
| | - C Perales
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
- Liver Unit, Internal Medicine Hospital Universitari Vall d'Hebron, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain
| | - L Tarancon-Diez
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital, Seville, Spain
| | - I Gallego
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - J L Sheldon
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - M Leal
- Servicio de Medicina Interna, Hospital Viamed, Santa Ángela de la Cruz, Seville, Spain
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - E Domingo
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - E Ruiz-Mateos
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital, Seville, Spain
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Jefferies M, Rauff B, Rashid H, Lam T, Rafiq S. Update on global epidemiology of viral hepatitis and preventive strategies. World J Clin Cases 2018; 6:589-599. [PMID: 30430114 PMCID: PMC6232563 DOI: 10.12998/wjcc.v6.i13.589] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 09/07/2018] [Accepted: 10/16/2018] [Indexed: 02/05/2023] Open
Abstract
Viral hepatitis is one of the major public health concerns around the world but until recently it has drawn little attention or funding from global health policymakers. Every year 1.4 million people die from viral hepatitis-related cirrhosis and liver cancer. However, the majority of the infected population are unaware of their condition. This population have significant obstacles to overcome such as lack of awareness, vulnerability, increased migration, disease stigma, discrimination, as well as poor health resources, conflict in policy development and program implementation. Despite implementing infection control measures over the last few decades eradication or significant disease reduction remains elusive. This study aims to present the current global prevalence status and examines potential elimination strategies. The information for this research were obtained through a systematic review, published scientific literatures, the official websites of various government organisations, international public health organisations and internationally recognised regulatory bodies over a period of 40 years between 1978 and 2018.
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Affiliation(s)
- Meryem Jefferies
- Drug Health, Western Sydney Local Health District, North Parramatta NSW 2151, Australia
| | - Bisma Rauff
- Westmead Institute for Medical Research, Westmead Hospital, Sydney Medical School University of Sydney, Westmead NSW 2145, Australia
| | - Harunor Rashid
- National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases, the Children’s Hospital at Westmead, and the Discipline of Child and Adolescent Health, Sydney Medical School, Westmead, NSW 2145, Australia
| | - Thao Lam
- Drug Health, Western Sydney Local Health District, North Parramatta NSW 2151, Australia
| | - Shafquat Rafiq
- Croydon University Hospital NHS Trust, Croydon SE23 2SP, United Kingdom
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Effects of antiviral treatment on the risk of hepatocellular cancer in patients with chronic viral hepatitis. Eur J Gastroenterol Hepatol 2018; 30:1277-1282. [PMID: 30179906 DOI: 10.1097/meg.0000000000001254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is a major complication of chronic hepatitis B (CHB) and chronic hepatitis C (CHC). Accumulating data suggest that antiviral treatment in both CHB and CHC reduces the incidence of HCC. Evidence is more consistent for interferon-based treatment in both CHB and CHC and for lamivudine in patients with CHB. However, more limited data suggest that other nucleos(t)ide analogues might also reduce the risk of HCC. In contrast, conflicting data have been reported on the effects of direct-acting antivirals on the incidence of HCC.
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Moustafa RI, Haddad JG, Linna L, Hanoulle X, Descamps V, Mesalam AA, Baumert TF, Duverlie G, Meuleman P, Dubuisson J, Lavie M. Functional Study of the C-Terminal Part of the Hepatitis C Virus E1 Ectodomain. J Virol 2018; 92:e00939-18. [PMID: 30068644 PMCID: PMC6158422 DOI: 10.1128/jvi.00939-18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/26/2018] [Indexed: 12/24/2022] Open
Abstract
In the hepatitis C virus (HCV) envelope glycoproteins E1 and E2, which form a heterodimer, E2 is the receptor binding protein and the major target of neutralizing antibodies, whereas the function of E1 remains less characterized. To investigate E1 functions, we generated a series of mutants in the conserved residues of the C-terminal region of the E1 ectodomain in the context of an infectious clone. We focused our analyses on two regions of interest. The first region is located in the middle of the E1 glycoprotein (between amino acid [aa] 270 and aa 291), which contains a conserved hydrophobic sequence and was proposed to constitute a putative fusion peptide. The second series of mutants was generated in the region from aa 314 to aa 342 (the aa314-342 region), which has been shown to contain two α helices (α2 and α3) by nuclear magnetic resonance studies. Of the 22 generated mutants, 20 were either attenuated or noninfectious. Several mutations modulated the virus's dependence on claudin-1 and the scavenger receptor BI coreceptors for entry. Most of the mutations in the putative fusion peptide region affected virus assembly. Conversely, mutations in the α-helix aa 315 to 324 (315-324) residues M318, W320, D321, and M322 resulted in a complete loss of infectivity without any impact on E1E2 folding and on viral assembly. Further characterization of the W320A mutant in the HCVpp model indicated that the loss of infectivity was due to a defect in viral entry. Together, these results support a role for E1 in modulating HCV interaction with its coreceptors and in HCV assembly. They also highlight the involvement of α-helix 315-324 in a late step of HCV entry.IMPORTANCE HCV is a major public health problem worldwide. The virion harbors two envelope proteins, E1 and E2, which are involved at different steps of the viral life cycle. Whereas E2 has been extensively characterized, the function of E1 remains poorly defined. We characterized here the function of the putative fusion peptide and the region containing α helices of the E1 ectodomain, which had been previously suggested to be important for virus entry. We could confirm the importance of these regions for the virus infectivity. Interestingly, we found several residues modulating the virus's dependence on several HCV receptors, thus highlighting the role of E1 in the interaction of the virus with cellular receptors. Whereas mutations in the putative fusion peptide affected HCV infectivity and morphogenesis, several mutations in the α2-helix region led to a loss of infectivity with no effect on assembly, indicating a role of this region in virus entry.
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Affiliation(s)
- Rehab I Moustafa
- University Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL/Centre d'Infection et d'Immunité de Lille, Lille, France
- Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Division, National Research Centre, Dokki, Cairo, Egypt
| | - Juliano G Haddad
- University Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL/Centre d'Infection et d'Immunité de Lille, Lille, France
- Laboratoire Microbiologie Santé et Environnement, Ecole Doctorale en Sciences et Technologie, Faculté de Santé Publique, Université Libanaise, Tripoli, Liban
| | - Lydia Linna
- University Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL/Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Xavier Hanoulle
- University of Lille, CNRS, UMR 8576, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Véronique Descamps
- Equipe AGIR EA4294, Laboratoire de Virologie du Centre Hospitalier Universitaire d'Amiens, Université de Picardie Jules Verne, Amiens, France
| | - Ahmed Atef Mesalam
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
- Department of Therapeutic Chemistry, National Research Centre, Dokki, Cairo, Egypt
- Research Group Immune- and Bio-markers for Infection, Centre of Excellence for Advanced Sciences, National Research Centre, Dokki, Cairo, Egypt
| | - Thomas F Baumert
- INSERM, U1110, University of Strasbourg, Pôle Hépato-digestif-Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Gilles Duverlie
- Equipe AGIR EA4294, Laboratoire de Virologie du Centre Hospitalier Universitaire d'Amiens, Université de Picardie Jules Verne, Amiens, France
| | - Philip Meuleman
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Jean Dubuisson
- University Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL/Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Muriel Lavie
- University Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL/Centre d'Infection et d'Immunité de Lille, Lille, France
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42
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Shiryaev VA, Radchenko EV, Palyulin VA, Zefirov NS, Bormotov NI, Serova OA, Shishkina LN, Baimuratov MR, Bormasheva KM, Gruzd YA, Ivleva EA, Leonova MV, Lukashenko AV, Osipov DV, Osyanin VA, Reznikov AN, Shadrikova VA, Sibiryakova AE, Tkachenko IM, Klimochkin YN. Molecular design, synthesis and biological evaluation of cage compound-based inhibitors of hepatitis C virus p7 ion channels. Eur J Med Chem 2018; 158:214-235. [PMID: 30218908 DOI: 10.1016/j.ejmech.2018.08.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/04/2018] [Accepted: 08/03/2018] [Indexed: 12/14/2022]
Abstract
The hepatitis C caused by the hepatitis C virus (HCV) is an acute and/or chronic liver disease ranging in severity from a mild brief ailment to a serious lifelong illness that affects up to 3% of the world population and imposes significant and increasing social, economic, and humanistic burden. Over the past decade, its treatment was revolutionized by the development and introduction into clinical practice of the direct acting antiviral (DAA) agents targeting the non-structural viral proteins NS3/4A, NS5A, and NS5B. However, the current treatment options still have important limitations, thus, the development of new classes of DAAs acting on different viral targets and having better pharmacological profile is highly desirable. The hepatitis C virus p7 viroporin is a relatively small hydrophobic oligomeric viral ion channel that plays a critical role during virus assembly and maturation, making it an attractive and validated target for the development of the cage compound-based inhibitors. Using the homology modeling, molecular dynamics, and molecular docking techniques, we have built a representative set of models of the hepatitis C virus p7 ion channels (Gt1a, Gt1b, Gt1b_L20F, Gt2a, and Gt2b), analyzed the inhibitor binding sites, and identified a number of potential broad-spectrum inhibitor structures targeting them. For one promising compound, the binding to these targets was additionally confirmed and the binding modes and probable mechanisms of action were clarified by the molecular dynamics simulations. A number of compounds were synthesized, and the tests of their antiviral activity (using the BVDV model) and cytotoxicity demonstrate their potential therapeutic usefulness and encourage further more detailed studies. The proposed approach is also suitable for the design of broad-spectrum ligands interacting with other multiple labile targets including various viroporins.
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Affiliation(s)
- Vadim A Shiryaev
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia.
| | - Eugene V Radchenko
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow, 119991, Russia
| | - Vladimir A Palyulin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow, 119991, Russia
| | - Nikolay S Zefirov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow, 119991, Russia
| | - Nikolay I Bormotov
- State Research Center of Virology and Biotechnology 'Vector', Koltsovo, Novosibirsk Region, 630559, Russia
| | - Olga A Serova
- State Research Center of Virology and Biotechnology 'Vector', Koltsovo, Novosibirsk Region, 630559, Russia
| | - Larisa N Shishkina
- State Research Center of Virology and Biotechnology 'Vector', Koltsovo, Novosibirsk Region, 630559, Russia
| | - Marat R Baimuratov
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Kseniya M Bormasheva
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Yulia A Gruzd
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Elena A Ivleva
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Marina V Leonova
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Anton V Lukashenko
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Dmitry V Osipov
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Vitaliy A Osyanin
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Alexander N Reznikov
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Vera A Shadrikova
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Anastasia E Sibiryakova
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Ilya M Tkachenko
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
| | - Yuri N Klimochkin
- Department of Organic Chemistry, Samara State Technical University, Molodogvardeyskaya 244, Samara, 443100, Russia
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Wei K, Jiang BC, Guan JH, Zhang DN, Zhang MX, Wu JL, Zhu GZ. Decreased CD4 +CD25 +CD127 dim/- Regulatory T Cells and T Helper 17 Cell Responsiveness to Toll-Like Receptor 2 in Chronic Hepatitis C Patients with Daclatasvir Plus Asunaprevir Therapy. Viral Immunol 2018; 31:559-567. [PMID: 30067145 DOI: 10.1089/vim.2018.0055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Direct-acting antivirals (DAAs) not only rapidly inhibited hepatitis C virus (HCV) replication but also modulated innate and adaptive immune response in chronic hepatitis C patients. However, the regulatory activity of DAAs to Toll-like receptor 2 (TLR2) stimulation on CD4+CD25+CD127dim/- regulatory T cells (Tregs) and T helper (Th) 17 cells was not completely understood. In the present study, a total of 23 patients with chronic HCV genotype 1b infection were enrolled, and blood samples were collected at baseline (treatment naive), end of therapy (EOT), and 12 weeks after EOT (SVR12) with daclatasvir plus asunaprevir therapy. TLR2 expression on Tregs and Th17 cells was measured by flow cytometry. Cellular proliferation, cytokine production, and suppressive activity were also tested in purified CD4+CD25+CD127dim/- Tregs in response to the stimulation of Pam3Csk4, an agonist of TLR2. Inhibition of HCV RNA by daclatasvir and asunaprevir did not affect either percentage of Tregs/Th17 cells or TLR2 expression on Tregs/Th17 cells. Pam3Csk4 stimulation also did not influence either cellular proliferation or Tregs/Th17 proportion at each time point. Stimulation with Pam3Csk4 only enhanced the suppressive function and interleukin (IL)-35 production by Tregs purified from baseline, but not those from EOT or SVR12. Similarly, Pam3Csk4 stimulation only elevated Th17 cell frequency of CD4+ T cells from baseline, but not those from EOT or SVR12. Moreover, daclatasvir and asunaprevir therapy did not promote TLR2-induced shift of Tregs toward Th17-like phenotype and function. These data suggested that daclatasvir plus asunaprevir therapy resulted in the decreased responsiveness of Tregs/Th17 cells to TLR2 stimulation in chronic hepatitis C patients, which might provide a novel mechanism underlying DAA-induced immunoregulation.
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Affiliation(s)
- Kun Wei
- 1 Department of Clinical Laboratory Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun, China
| | - Ben-Chun Jiang
- 1 Department of Clinical Laboratory Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun, China
| | - Jing-Hui Guan
- 2 Department of Blood Transfusion, The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun, China
| | - Dong-Na Zhang
- 1 Department of Clinical Laboratory Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun, China
| | - Meng-Xuan Zhang
- 3 Clinical Medicine College, Changchun University of Chinese Medicine , Changchun, China
| | - Jun-Long Wu
- 1 Department of Clinical Laboratory Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun, China
| | - Guang-Ze Zhu
- 1 Department of Clinical Laboratory Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine , Changchun, China
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Frias M, Rivero-Juárez A, López-López P, Rivero A. Pharmacogenetics and the treatment of HIV-/HCV-coinfected patients. Pharmacogenomics 2018; 19:979-995. [PMID: 29992850 DOI: 10.2217/pgs-2018-0046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
This review will summarize the role of pharmacogenetics in the natural history of hepatitis C, particularly in patients with HIV/HCV and will take the perspective of pharmacogenetics and its influence on the response to antiviral therapy and the susceptibility to develop adverse effects. This review will also devote a section to host genetics in other clinical situations, such as disease progression and acute HCV infection, which may determine whether treatment of HIV-/HCV-coinfected patients is implemented or deferred.
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Affiliation(s)
- Mario Frias
- Department of Clinical Virology & Zooneses, Hospital Universitario Reina Sofía de Córdoba, Instituto Maimonides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba. Córdoba, 14004, Spain
| | - Antonio Rivero-Juárez
- Department of Clinical Virology & Zooneses, Hospital Universitario Reina Sofía de Córdoba, Instituto Maimonides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba. Córdoba, 14004, Spain
| | - Pedro López-López
- Department of Clinical Virology & Zooneses, Hospital Universitario Reina Sofía de Córdoba, Instituto Maimonides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba. Córdoba, 14004, Spain
| | - Antonio Rivero
- Department of Clinical Virology & Zooneses, Hospital Universitario Reina Sofía de Córdoba, Instituto Maimonides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba. Córdoba, 14004, Spain
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45
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Lavie M, Hanoulle X, Dubuisson J. Glycan Shielding and Modulation of Hepatitis C Virus Neutralizing Antibodies. Front Immunol 2018; 9:910. [PMID: 29755477 PMCID: PMC5934428 DOI: 10.3389/fimmu.2018.00910] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/12/2018] [Indexed: 12/11/2022] Open
Abstract
Hepatitis C virus (HCV) envelope glycoprotein heterodimer, E1E2, plays an essential role in virus entry and assembly. Furthermore, due to their exposure at the surface of the virion, these proteins are the major targets of anti-HCV neutralizing antibodies. Their ectodomain are heavily glycosylated with up to 5 sites on E1 and up to 11 sites on E2 modified by N-linked glycans. Thus, one-third of the molecular mass of E1E2 heterodimer corresponds to glycans. Despite the high sequence variability of E1 and E2, N-glycosylation sites of these proteins are generally conserved among the seven major HCV genotypes. N-glycans have been shown to be involved in E1E2 folding and modulate different functions of the envelope glycoproteins. Indeed, site-directed mutagenesis studies have shown that specific glycans are needed for virion assembly and infectivity. They can notably affect envelope protein entry functions by modulating their affinity for HCV receptors and their fusion activity. Importantly, glycans have also been shown to play a key role in immune evasion by masking antigenic sites targeted by neutralizing antibodies. It is well known that the high mutational rate of HCV polymerase facilitates the appearance of neutralization resistant mutants, and occurrence of mutations leading to glycan shifting is one of the mechanisms used by this virus to escape host humoral immune response. As a consequence of the importance of the glycan shield for HCV immune evasion, the deletion of N-glycans also leads to an increase in E1E2 immunogenicity and can induce a more potent antibody response against HCV.
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Affiliation(s)
- Muriel Lavie
- University of Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Center for Infection & Immunity of Lille, Lille, France
| | - Xavier Hanoulle
- University of Lille, CNRS, UMR 8576, UGSF, Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Jean Dubuisson
- University of Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Center for Infection & Immunity of Lille, Lille, France
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Uribe-Noguez LA, Ocaña-Mondragón A, Mata-Marín JA, Gómez-Torres ME, Ribas-Aparicio RM, de la Luz Martínez-Rodríguez M. Presence of rare hepatitis C virus subtypes, 2j, 2k, and 2r in Mexico City as identified by sequencing. J Med Virol 2018; 90:1277-1282. [PMID: 29508903 DOI: 10.1002/jmv.25070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/21/2018] [Indexed: 12/21/2022]
Abstract
The HCV 5'UTR, Core/E1, and NS5B regions of samples from fifty patients infected with the hepatitis C virus (HCV) were analyzed. Seventeen patients were identified with genotype (GT) 1b, eleven with GT-1a, nine with GT-2b and four with GT-3a. Two rare subtypes were detected: GT-2j in two patients and GT-2r in one patient. Three patients had mixed infections: one with GT-2k + 2j and two with GT-1b + 2b. This work identifies HCV GTs, 2j, 2k, and 2r for the first time in Mexico.
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Affiliation(s)
- Luis Antonio Uribe-Noguez
- Unidad de Investigación Médica en Inmunología e Infectología, Hospital de Infectología, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, CDMX, México.,Departamento de Microbiología, Programa en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, CDMX, México
| | - Alicia Ocaña-Mondragón
- Unidad de Investigación Médica en Inmunología e Infectología, Hospital de Infectología, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, CDMX, México
| | - José Antonio Mata-Marín
- Departamento de Enfermedades Infecciosas, Hospital de Infectología, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, CDMX, México
| | - María Elena Gómez-Torres
- Laboratorio de urgencias, Hospital de Infectología, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, CDMX, México
| | - Rosa María Ribas-Aparicio
- Departamento de Microbiología, Programa en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, CDMX, México
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