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Kumar M, George R, Vaithiyam V, Sakhuja P, Dahale AS, Dayal A, Dalal A, Sonika U, Sachdeva S, Kumar A. Enhanced Liver Fibrosis Score: Is It Useful for Evaluation of Fibrosis Severity in Chronic Hepatitis C Infection? Cureus 2022; 14:e21168. [PMID: 35165618 PMCID: PMC8831389 DOI: 10.7759/cureus.21168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2022] [Indexed: 11/05/2022] Open
Abstract
Introduction: The assessment of liver fibrosis is important in patients with chronic hepatitis C (CHC). In recent years, non-invasive tests like enhanced liver fibrosis (ELF) have been developed as an alternative to liver biopsy for estimating the severity of liver fibrosis. Therefore, we aimed to assess whether the ELF score can be used for fibrosis severity estimation using liver biopsy as the gold standard. Materials and methods: Forty-nine patients with CHC were enrolled in this study. Liver biopsy, ELF assessment, and transient elastography (TE) were performed in all patients, and severity of fibrosis on histopathology was assessed by meta-analysis of histological data in viral hepatitis (METAVIR) score. In addition, the diagnostic performance of ELF was evaluated by receiver operator characteristic curve (ROC) analyses, and liver biopsy histopathology was taken as the gold standard for the severity of liver fibrosis. Results: The area under receiver operator characteristic curve (AUROC) for significant fibrosis of ELF score was 0.64 (95% confidence interval {CI}, 0.48-0.79) and of TE was 0.85 (95% CI, 0.73-0.96). The AUROC for advance fibrosis of ELF was 0.77 (95% CI, 0.57-0.97) and TE was 0.98 (95% CI, 0.94-1.0). The calculated cut-offs of ELF overestimated fibrosis in 53.06% (26/49) of patients and underestimated fibrosis in 6.12% (3/49) patients. AUROC of TE was significantly better than ELF for diagnosis of significant fibrosis (p=0.004) and advanced fibrosis (p=0.034). Conclusion: The ELF score can be used for estimating the severity of fibrosis but it is inferior to TE in estimating liver fibrosis severity.
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Besheer T, El-Bendary M, Elalfy H, Abd El-Maksoud M, Salah M, Zalata K, Elkashef W, Elshahawy H, Raafat D, Elemshaty W, Almashad N, Zaghloul H, El-Gilany AH, Abdel Razek AAK, Abd Elwahab M. Prediction of Fibrosis Progression Rate in Patients with Chronic Hepatitis C Genotype 4: Role of Cirrhosis Risk Score and Host Factors. J Interferon Cytokine Res 2017; 37:97-102. [PMID: 28068153 DOI: 10.1089/jir.2016.0111] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The rate of liver fibrosis progression in chronic hepatitis C (CHC) patients is highly variable and affected by different factors. This study aimed to assess the role of cirrhosis risk score (CRS) based on 7 genetic variants (7 single-nucleotide polymorphisms [SNPs]) and host factors (age and sex) in the prediction of the rate of fibrosis progression in CHC. Duration of infection was determined in 115 patients. The fibrosis progression rate (FPR) per year was calculated as the ratio between fibrosis stage and the duration of infection. SNP genotyping were performed and CRS was determined based on it. FPR was significantly elevated in patients who acquired infection at age >40 years versus those who acquired infection at 30-40 years and those who acquired infection at <30 years. Median FPR was significantly higher in males than females (0.17 vs. 0.15) with P = 0.001. CRS value ≥0.8 is predictive of patients with high risk for cirrhosis, and CRS value <0.5 is predictive of patients with low risk for cirrhosis. There was significant positive correlation between CRS and FPR (P ≤ 0.001). CRS based on 7 SNPs at cutoff value ≥0.8, age at infection >40 years, and male sex are predictors of higher FPR.
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Affiliation(s)
- Tarek Besheer
- 1 Department of Tropical Medicine, Mansoura University , Mansoura, Egypt
| | - Mahmoud El-Bendary
- 1 Department of Tropical Medicine, Mansoura University , Mansoura, Egypt
| | - Hatem Elalfy
- 1 Department of Tropical Medicine, Mansoura University , Mansoura, Egypt
| | | | - Mohamed Salah
- 1 Department of Tropical Medicine, Mansoura University , Mansoura, Egypt
| | - Khaled Zalata
- 2 Department of Pathlogy, Mansoura University , Mansoura, Egypt
| | - Wagdi Elkashef
- 2 Department of Pathlogy, Mansoura University , Mansoura, Egypt
| | - Heba Elshahawy
- 3 Department of Clinical Pathology, Mansoura University , Mansoura, Egypt
| | - Doaa Raafat
- 3 Department of Clinical Pathology, Mansoura University , Mansoura, Egypt
| | - Wafaa Elemshaty
- 3 Department of Clinical Pathology, Mansoura University , Mansoura, Egypt
| | - Noha Almashad
- 3 Department of Clinical Pathology, Mansoura University , Mansoura, Egypt
| | - Hosam Zaghloul
- 3 Department of Clinical Pathology, Mansoura University , Mansoura, Egypt
| | - Abdel-Hady El-Gilany
- 4 Department of Public Health and Preventive Medicine, Mansoura University , Mansoura, Egypt
| | | | - Mohamed Abd Elwahab
- 6 Gastroenterology Surgical Center, Mansoura Faculty of Medicine, Mansoura University , Mansoura, Egypt
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Prabdial-Sing N, Chirwa T, Thaver J, Smuts H, Vermeulen M, Suchard M, Puren AJ. Hepatitis C genotype distribution in patient and blood donor samples in South Africa for the period 2008-2012. J Viral Hepat 2016; 23:881-888. [PMID: 27545625 DOI: 10.1111/jvh.12571] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 07/07/2016] [Indexed: 12/18/2022]
Abstract
There are limited molecular epidemiological studies of hepatitis C at a national level in South Africa. The introduction of newer treatment modalities for hepatitis C requires knowledge of the genotypes as these may have different prognostic and therapeutic implications. This retrospective study describes genotype distributions of patients attending specialist clinics and a blood donor group studied during the period 2008-2012 in South Africa. Residual samples from diagnostic viral load testing from specialist clinics in South Africa (n=941) and from the South African National Blood Service (n=294) were analysed quantitatively by real-time PCR and genotyped using the Versant line probe assay or sequencing. Genotype 1 was predominant in blood donors (34%), whilst genotype 5a was prevalent in patients (36%). In the blood donor group, genotype 4 was detected for the first time. Genotype 2 was rare in the patient group and not detected in blood donors. Genotype 1 was the predominant genotype in the younger age groups (less than 30 years), whereas genotype 5a was found at higher proportions in the older age groups for both the patient and blood donor groups, comprising more than 60% of genotypes in those older than 50 years. Genotypes 1 and 5 were at highest proportions across all provinces compared to other genotypes. In blood donors, genotype 1 was predominant among Caucasians (43%) and genotype 5a among Blacks (54%). Such information is required for planning the impact on the health sector with regard to newly emerging therapies for hepatitis C and burden of disease.
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Affiliation(s)
- N Prabdial-Sing
- Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), Johannesburg, South Africa. .,Faculty of Health Sciences, Division of Virology and Communicable Diseases Surveillance, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
| | - T Chirwa
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - J Thaver
- Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), Johannesburg, South Africa
| | - H Smuts
- Division of Medical Virology, University of Cape Town and National Health Laboratory Services, Cape Town, South Africa
| | - M Vermeulen
- Donation Testing, South African National Blood Service, Roodepoort, South Africa
| | - M Suchard
- Centre for Vaccines and Immunology, National Institute for Communicable Diseases (NICD), Johannesburg, South Africa.,Molecular Medicine and Haematology, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - A J Puren
- Faculty of Health Sciences, Division of Virology and Communicable Diseases Surveillance, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.,Centre for HIV and STI, National Institute for Communicable Diseases (NICD), Johannesburg, South Africa
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Identification of Indian sub-continent as hotspot for HCV genotype 3a origin by Bayesian evolutionary reconstruction. INFECTION GENETICS AND EVOLUTION 2014; 28:87-94. [PMID: 25224661 DOI: 10.1016/j.meegid.2014.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 09/04/2014] [Accepted: 09/06/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Recent emphasis in Hepatitis C virus (HCV) evolutionary biology has focused on analysis using Core, E1/E2 and/or NS5b regions, with limited appreciation of full length genome. While HCV genotypes have been described as endemic in the Indian subcontinent, there has been no confirmation at the molecular evolutionary level of these genotypes. We have attempted here to determine the status of Indian HCV genotype 3a sequences in relation to similar genotypes from other parts of the world. METHODS Cloning, sequencing and molecular characterization was performed on 9 Indian sequences and comparative analyses were performed with 46 sequences from other countries. Evolutionary-rate and molecular-clock hypothesis testing was addressed by Bayesian MCMC. RESULTS Genetic analysis of full length genome revealed two hypervariable regions (HVR) in E2 region - HVR496 and HVR576, with a variable 5-8 amino-acid insertion sequence and a putative N-glycosylation site. Phylogenetic analysis revealed a divergence resulting in 2 distinct clades: clade-1 represented by HCV 3a subtype and clade-2 represented by other 3 subtype genomes. Clade-2 shows earlier divergence than clade-1. Analysis revealed that genotype 3a genomes from India roots out first (∼99 years ago) in clade1. Bayesian skyline plot analysis revealed an increase in effective number of infections from 1940s to 1990s, followed by a gradual decrease after 2000. CONCLUSIONS Genotype 3a sequences appear to have originated in India and later dispersed to United Kingdom around mid 1940s, most likely around the time of Indian independence and World War II.
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Avihingsanon A, Jitmitraparp S, Tangkijvanich P, Ramautarsing RA, Apornpong T, Jirajariyavej S, Putcharoen O, Treeprasertsuk S, Akkarathamrongsin S, Poovorawan Y, Matthews GV, Lange JMA, Ruxrungtham K. Advanced liver fibrosis by transient elastography, fibrosis 4, and alanine aminotransferase/platelet ratio index among Asian hepatitis C with and without human immunodeficiency virus infection: role of vitamin D levels. J Gastroenterol Hepatol 2014; 29:1706-14. [PMID: 24730732 DOI: 10.1111/jgh.12613] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/14/2014] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIM Vitamin D insufficiency plays an important role in liver fibrosis in hepatitis C virus (HCV)-infected patients. We assessed liver fibrosis by transient elastography and 25 hydroxy vitamin D [25(OH)D] status in HCV-infected patients, with (HIV/HCV) or without HIV co-infection (HCV) from Thailand. METHODS Fibrosis stage was defined as mild (< 7.1 kPa); moderate (7.2-9.4 kPa); severe (9.5-14 kPa), and cirrhosis (> 14 kPa). Hypovitaminosis D was defined as 25(OH)D < 30 ng/mL. Logistic regression analyses were used to assess predictors for significant fibrosis. Serum 25(OH) D levels, HCV genotypes (GT), interleukin-28B (IL28B) and HCV-RNA were assessed. RESULTS A total of 331 HCV and 130 HIV/HCV patients were enrolled (70% male, 35% people who inject drugs [PWIDs]). HCV GT distribution was as follows: GT3 47%, GT1 34%, GT6 17%. IL-28B CC genotype (rs12979860) were found in 88% of HIV/HCV and 85% of HCV. In HCV, liver fibrosis was mild in 56.5%; moderate in 18.4%; severe in 12.4%; and cirrhosis in 12.7%. In HIV/HCV, these figures were 30.6%, 27.8%, 17.6%, and 24.1%, respectively. Patients with significant fibrosis were more often male, older, with HIV infection, hypovitaminosis D, and less likely to be infected with GT6. Factors associated with significant fibrosis by multivariate analysis were HIV infection (adjusted odd ratio [95% confidential interval]: 2.67, 1.20-5.93), P = 0.016, Fib-4 score > 1.45 (6.30, 2.70-14.74), P < 0.001, and hypovitaminosis D (2.48, 1.09-5.67), P = 0.031. GT 6 was less likely to have advanced liver fibrosis (0.17, 0.05-0.65), P = 0.01. CONCLUSIONS HIV infection, Fib-4 score > 1.45, and hypovitaminosis D are strong and independent predictors for the presence of advanced fibrosis in our HCV-infected patients. These data highlight the urgent need of HCV treatment and vitamin D supplement in resource-limited settings.
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Affiliation(s)
- Anchalee Avihingsanon
- HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), The Thai Red Cross AIDS Research Center, Bangkok, Thailand; Division of Allergy and Immunology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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6
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Puri P, Anand AC, Saraswat VA, Acharya SK, Dhiman RK, Aggarwal R, Singh SP, Amarapurkar D, Arora A, Chhabra M, Chetri K, Choudhuri G, Dixit VK, Duseja A, Jain AK, Kapoorz D, Kar P, Koshy A, Kumar A, Madan K, Misra SP, Prasad MV, Nagral A, Puri AS, Jeyamani R, Saigal S, Sarin SK, Shah S, Sharma P, Sood A, Thareja S, Wadhawan M. Consensus Statement of HCV Task Force of the Indian National Association for Study of the Liver (INASL). Part I: Status Report of HCV Infection in India. J Clin Exp Hepatol 2014; 4:106-16. [PMID: 25755548 PMCID: PMC4116733 DOI: 10.1016/j.jceh.2014.05.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 05/13/2014] [Indexed: 12/12/2022] Open
Abstract
Globally, around 150 million people are infected with hepatitis C virus (HCV). India contributes a large proportion of this HCV burden. The prevalence of HCV infection in India is estimated at between 0.5% and 1.5%. It is higher in the northeastern part, tribal populations and Punjab, areas which may represent HCV hotspots, and is lower in western and eastern parts of the country. The predominant modes of HCV transmission in India are blood transfusion and unsafe therapeutic injections. There is a need for large field studies to better understand HCV epidemiology and identify high-prevalence areas, and to identify and spread awareness about the modes of transmission of this infection in an attempt to prevent disease transmission.
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Affiliation(s)
- Pankaj Puri
- Department of Gastroenterology, Army Hospital (R & R), New Delhi 110010, India
| | - Anil C. Anand
- Department of Gastroenterology and Hepatology, Indraprastha Apollo Hospital, New Delhi 110076, India
| | - Vivek A. Saraswat
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 221016, India
| | - Subrat K. Acharya
- Department of Gastroenterology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Radha K. Dhiman
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Rakesh Aggarwal
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 221016, India
| | | | | | - Anil Arora
- Department of Gastroenterology, Sir Ganga Ram Hospital, New Delhi 110060, India
| | - Mohinish Chhabra
- Department of Gastroenterology, Fortis Hospital, Mohali, Punjab 160047, India
| | - Kamal Chetri
- Department of Gastroenterology, International Hospital, Guwahati, Assam 781005, India
| | - Gourdas Choudhuri
- Department of Gastroenterology, Fortis Hospital, Gurgaon, Haryana 122002, India
| | - Vinod K. Dixit
- Department of Gastroenterology, Banaras Hindu University, Varanasi, UP 221005, India
| | - Ajay Duseja
- Department of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Ajay K. Jain
- Department of Gastroenterology, Chaithram Hospital, Indore, MP 452014, India
| | - Dharmesh Kapoorz
- Department of Gastroenterology, Global Hospital, Hyderabad, AP 500004, India
| | - Premashis Kar
- Department of Gastroenterology, LNJP Hospital and Maulana Azad Medical College, New Delhi 110002, India
| | - Abraham Koshy
- Department of Hepatology, Lakeshore Hospital, Cochin, Kerala 682304, India
| | - Ashish Kumar
- Department of Gastroenterology, Sir Ganga Ram Hospital, New Delhi 110060, India
| | - Kaushal Madan
- Department of Gastroenterology, Medanta Medicity, Gurgaon, Haryana 122001, India
| | - Sri P. Misra
- Department of Gastroenterology, MLN Medical College, Allahabad, India
| | - Mohan V.G. Prasad
- Department of Gastroenterology, VGM Hospital, Coimbatore 641005, India
| | - Aabha Nagral
- Department of Gastroenterology, Jaslok Hospital, Mumbai 400026, India
| | - Amarendra S. Puri
- Department of Gastroenterology, GP Pant Hospital, New Delhi 110002, India
| | - R. Jeyamani
- Department of Gastroenterology, Christian Medical College, Vellore, Chennai 632004, India
| | - Sanjiv Saigal
- Department of Gastroenterology, Medanta Medicity, Gurgaon, Haryana 122001, India
| | - Shiv K. Sarin
- Institute of Liver and Biliary Sciences, Vasant Kunj, New Delhi 110070, India
| | - Samir Shah
- Department of Gastroenterology, Global Hospital, Mumbai 400078, India
| | - P.K. Sharma
- Department of Gastroenterology, Command Hospital (SC), Pune 411040, India
| | - Ajit Sood
- Department of Gastroenterology, Dayanand Medical College, Ludhiana, Punjab 141001, India
| | - Sandeep Thareja
- Department of Gastroenterology, Army Hospital R&R, New Delhi 110010, India
| | - Manav Wadhawan
- Department of Gastroenterology and Hepatology, Indraprashtha Apollo Hospital, New Delhi 110044, India
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Expression of inhibitory markers is increased on effector memory T cells during hepatitis C virus/HIV coinfection as compared to hepatitis C virus or HIV monoinfection. AIDS 2013; 27:2191-200. [PMID: 23820090 DOI: 10.1097/qad.0b013e32836285e4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Hepatitis C virus (HCV)/HIV coinfection is associated with rapid progression of hepatic fibrosis and liver disease. T-cell response has been implicated in the pathophysiological outcome of the disease. DESIGN This study sought to evaluate the role of memory T-cell exhaustion in enhancing immune dysfunction during coinfection. METHODS Sixty-four patients were included in the study; HCV monoinfected (n = 21), HIV monoinfected (n = 23), HCV/HIV coinfected (n = 20), and healthy controls (n = 20). Peripheral blood mononuclear cells (PBMCs) were isolated; immunophenotyped and functional assays were performed. RESULTS A significant increase in the naive T cells and central memory T cells and a marked reduction in effector memory T cells (TEM) were observed with coinfection as compared to monoinfection. Inhibitory markers programmed death 1 (PD-1) and T-cell immunoglobulin and mucin domain containing molecule 3 (TIM3) were highly upregulated on TEM in coinfection and functionally, these TEM cells displayed lowered proliferation. Increased expression of PD-1 and TIM3 correlated with decreased levels of CD8+CD107a+ TEM cells in coinfection. Pro-inflammatory cytokines interferon-γ and interleukin-2 (IL-2) secretion by TEM cells were also reduced during chronic viral infection. Secretion of IL-10, a human cytokine synthesis inhibitory factor, was significantly upregulated in CD4 TEM with HCV/HIV coinfection in comparison to HCV monoinfection. CONCLUSION TEM cells play an important role during viral infection and enhanced expression of inhibitory markers is associated with decreased proliferation and cytotoxicity and increased IL-10 production, which was pronounced in HCV/HIV coinfection. Thus, decreased TEM functionality contributes to diminished host immune responses during HCV/HIV coinfection as compared to HCV or HIV monoinfection.
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Abstract
Hepatitis C virus (HCV) infection remains a major global health burden. Hepatitis C causes significant liver-related morbidity and mortality due to hepatic decompensation and development of hepatocellular carcinoma. In addition, extra-hepatic manifestations of hepatitis C are frequent. There is a very large interindividual variability in the natural history of both acute and chronic hepatitis C which can be explained in part by a combination of various host, viral and environmental factors. Successful antiviral treatment can prevent short- and long-term complications of HCV infection in many patients. Still, the relative contribution of distinct risk factors for disease progression in different phases of HCV infection needs to be better defined. Personalized treatment approaches for HCV infection should consider individual risk profiles to avoid both under- and over-treatment - which will remain important also in upcoming era of interferon-free treatment of hepatitis C.
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Affiliation(s)
- Benjamin Maasoumy
- Hannover Medical School, Carl-Neuberg-Str.1, 30625 Hannover, Germany
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Omata M, Kanda T, Yu ML, Yokosuka O, Lim SG, Jafri W, Tateishi R, Hamid SS, Chuang WL, Chutaputti A, Wei L, Sollano J, Sarin SK, Kao JH, McCaughan GW. APASL consensus statements and management algorithms for hepatitis C virus infection. Hepatol Int 2012; 6:409-435. [PMID: 26201405 DOI: 10.1007/s12072-012-9342-y] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Accepted: 01/21/2012] [Indexed: 12/13/2022]
Abstract
The Asian Pacific Association for the Study of the Liver (APASL) convened an international working party on the "APASL Consensus Statements and Management Algorithms for Hepatitis C Virus Infection" in December, 2010, in order to revise "Asian Pacific Association for the Study of the Liver consensus statements on the diagnosis, management and treatment of hepatitis C virus infection (J Gastroenterol Hepatol 22:615-633, 2007)". The working party consisted of expert hepatologists from the Asian-Pacific region gathered at Makuhari, Chiba, Japan on 19 December 2010. New data were presented, discussed and debated to draft a revision. Participants of the consensus meeting assessed the quality of cited studies. Finalized recommendations are presented in this review.
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Affiliation(s)
- Masao Omata
- Yamanashi Prefectural Central Hospital, 1-1-1 Fujimi, Kofu-shi, Yamanashi, 400-8506, Japan.
- The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Tatsuo Kanda
- Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ming-Lung Yu
- Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
- Kaohsiung Medical University Hospital and Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Osamu Yokosuka
- Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Seng-Gee Lim
- National University Hospital, Singapore, Singapore
| | | | - Ryosuke Tateishi
- The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | | | - Wan-Long Chuang
- Kaohsiung Medical University Hospital and Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | - Lai Wei
- Peking University People's Hospital, Beijing, China
| | - Jose Sollano
- University Santo Tomas Hospital, Manila, Philippines
| | | | - Jia-Horng Kao
- National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei, Taiwan
| | - Geoffrey W McCaughan
- Royal Prince Alfred Hospital, Centenary Institute, University of Sydney, Sydney, Australia
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Human Interferon Regulatory Factor 2 Gene Expression is Induced in Chronic Hepatitis C Virus Infection-A Possible Mode of Viral Persistence. J Clin Exp Hepatol 2012; 2:27-34. [PMID: 25755403 PMCID: PMC3940332 DOI: 10.1016/s0973-6883(12)60080-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Accepted: 02/16/2012] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The interferon regulatory factors (IRFs) are a family of transcription factors known to be involved in the modulation of cellular responses to interferons (IFNs) and viral infection. While IRF-1 acts as a positive regulator, IRF-2 is known to repress IFN-mediated gene expression. The increase in the IRF-1/IRF-2 ratio is considered as an important event in the transcriptional activation of IFN-α gene toward development of the cellular antiviral response. OBJECTIVE This study was performed to assess the expression of IRF mRNAs along with the expression level of IFN-α, its receptor (IFNAR-1), and the signal transduction factor (STAT-1) in treatment naive hepatitis C virus (HCV)-infected subjects. MATERIALS Thirty-five chronically infected (CHC) patients and 39 voluntary blood donors as controls were included in the study. Quantification of HCV-RNA (ribonucleic acid) and genotyping were done by real-time polymerase chain reaction (PCR) and hybridization assays, respectively, using patient's serum/plasma. In both controls and patients, the serum level of IFN-α and IFN-α was measured by flow cytometry. Target gene expressions were studied by retro-transcription of respective mRNAs extracted from peripheral blood mononuclear cells (PBMCs) followed by PCR amplification and densitometry. Minus-strand HCV-RNA as a marker of viral replication in PBMCs was detected by an inhouse PCR assay. RESULTS Both IRF-1 and IRF-2 genes were significantly enhanced in CHC than in control subjects (P < 0.001). A significant positive correlation (r (2) = 0.386, P <0.01) was obtained between higher IRF-2 gene expression and increasing level of HCV-RNA. Chronically infected subjects (13%) harboring replicating HCV in PBMCs showed no significant differences in gene expressions than the subjects without HCV in PBMCs. CONCLUSION Our findings indicate that HCV modulates host immunity by inducing IRF-2 gene to counteract IRF-1-mediated IFN-α gene expression. Since the IRF-2 gene is known to encode oncogenic protein, the role of IRF-2 in CHC patients developing hepatocellular carcinoma warrants further studies.
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Key Words
- CHC, chronic hepatitis C
- CLD, chronic liver disease
- Gene expression
- HBV, hepatitis B virus
- HBsAg, hepatitis B virus surface antigen
- HCC, hepatocellular carcinoma
- HCV, hepatitis C virus
- IFN, interferon
- IRES, internal ribosomal entry site
- IRF, interferon regulatory factors
- PBMC, peripheral blood mononuclear cells
- PCR, polymerase chain reaction
- SVR, sustained virological response
- VCAM, vascular cell adhesion molecule
- hepatitis C virus
- interferon regulatory factor 2
- interferon-alfa
- peripheral blood mononuclear cells
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Probst A, Dang T, Bochud M, Egger M, Negro F, Bochud PY. Role of hepatitis C virus genotype 3 in liver fibrosis progression--a systematic review and meta-analysis. J Viral Hepat 2011; 18:745-59. [PMID: 21992794 DOI: 10.1111/j.1365-2893.2011.01481.x] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The progression of liver fibrosis in chronic hepatitis C has long been considered to be independent from viral genotypes. However, recent studies suggest an association between Hepatitis C virus (HCV) genotype 3 and accelerated liver disease progression. We completed a systematic review and meta-analysis of studies evaluating the association between HCV genotypes and fibrosis progression. PubMed, Embase and ISI Web of Knowledge databases were searched for cohort, cross-sectional and case-control studies on treatment-naïve HCV-infected adults in which liver fibrosis progression rate (FPR) was assessed by the ratio of fibrosis stage in one single biopsy to the duration of infection (single-biopsy studies) or from the change in fibrosis stage between two biopsies (paired biopsies studies). A random effect model was used to derive FPR among different HCV genotypes. Eight single-biopsy studies (3182 patients, mean/median duration of infection ranging from 9 to 21 years) and eight paired biopsies studies (mean interval between biopsies 2-12 years) met the selection criteria. The odds ratio for the association of genotype 3 with accelerated fibrosis progression was 1.52 (95% CI 1.12-2.07, P = 0.007) in single-biopsy studies and 1.37 (95% CI 0.87-2.17, P = 0.17) in paired biopsy studies. In conclusion, viral genotype 3 was associated with faster fibrosis progression in single-biopsy studies. This observation may have important consequences on the clinical management of genotype 3-infected patients. The association was not significant in paired biopsies studies, although the latter may be limited by important indication bias, short observation time and small sample size.
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Affiliation(s)
- A Probst
- Infectious Diseases Service, Department of Medicine, University Hospital and University of Lausanne, Lausanne, Switzerland
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13
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Borg BB, Seetharam A, Subramanian V, Ilias H, Lisker–Melman M, Korenblat K, Anderson C, Shenoy S, Chapman WC, Crippin JS, Mohanakumar T. Immune response to extracellular matrix collagen in chronic hepatitis C-induced liver fibrosis. Liver Transpl 2011; 17:814-23. [PMID: 21425431 PMCID: PMC3700355 DOI: 10.1002/lt.22303] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hepatitis C virus (HCV) infection and its recurrence after orthotopic liver transplantation (OLT) are associated with the remodeling of extracellular matrix (ECM) components [particularly collagen (Col)], which leads to fibrosis. Our aim was to determine whether the development of antibodies (Abs) to self-antigen Col in HCV-infected patients correlates with the fibrosis stage and the peripheral cytokine response. Patients with chronic HCV infection, patients with HCV recurrence after OLT who had undergone a biopsy procedure, and healthy control subjects were enrolled. The HCV subjects (n = 70) were stratified as follows: (1) a non-OLT group without fibrosis (Scheuer stages 0-2), (2) a non-OLT group with fibrosis (Scheuer stages 3-4), (3) a post-OLT group without fibrosis (Scheuer stages 0-2), and (4) a post-OLT group with fibrosis (Scheuer stages 3-4). Serum samples were analyzed for Abs against Col1, Col2, Col4, Col5, and vimentin with enzyme-linked immunosorbent assays. Serum levels of cytokines were measured with multiplex bead immunoassays. The levels of Abs to Col1 were higher in the fibrosis groups versus the no-fibrosis groups and the controls for both non-OLT patients (P < 0.001) and post-OLT patients (P = 0.01). There were increased levels of Abs to Col2, Col4, Col5, and vimentin in the non-OLT fibrosis group (Col2, P = 0.0001; Col4, P = 0.122; Col5, P < 0.0001; vimentin, P = 0.36) and in the post-OLT fibrosis group (Col2, P = 0.006; Col4, P = 0.19; Col5, P < 0.0001; vimentin, P = 0.24) in comparison with the no-fibrosis groups. The non-OLT and post-OLT fibrosis groups demonstrated significantly higher T helper 2 (T(h) 2) and T helper 17 (T(h) 17) cytokine levels and lower T helper 1 cytokine levels in comparison with the no-fibrosis groups. Our results demonstrate that in HCV-infected patients, the levels of Abs to ECM Col1, Col2, and Col5 positively correlate with liver fibrosis, which is associated with a predominantly T(h) 2 and T(h) 17 cytokine profile.
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Affiliation(s)
- Brian B. Borg
- Department of Medicine, Washington University School of Medicine St. Louis, MO 63110
| | - Anil Seetharam
- Department of Medicine, Washington University School of Medicine St. Louis, MO 63110
| | - Vijay Subramanian
- Department of Surgery, Washington University School of Medicine St. Louis, MO 63110
| | - Haseeb Ilias
- Department of Surgery, Washington University School of Medicine St. Louis, MO 63110
| | | | - Kevin Korenblat
- Department of Medicine, Washington University School of Medicine St. Louis, MO 63110
| | - Christopher Anderson
- Department of Surgery, Washington University School of Medicine St. Louis, MO 63110
| | - Surendra Shenoy
- Department of Surgery, Washington University School of Medicine St. Louis, MO 63110
| | - William C. Chapman
- Department of Surgery, Washington University School of Medicine St. Louis, MO 63110
| | - Jeffrey S. Crippin
- Department of Medicine, Washington University School of Medicine St. Louis, MO 63110
| | - Thalachallour Mohanakumar
- Department of Surgery, Washington University School of Medicine St. Louis, MO 63110,Department of Pathology and Immunology, Washington University School of Medicine St. Louis, MO 63110
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14
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Lau-Corona D, Pineda LA, Avilés HH, Gutiérrez-Reyes G, Farfan-Labonne BE, Núñez-Nateras R, Bonder A, Martínez-García R, Corona-Lau C, Olivera-Martínez MA, Gutiérrez-Ruiz MC, Robles-Díaz G, Kershenobich D. Effective use of FibroTest to generate decision trees in hepatitis C. World J Gastroenterol 2009; 15:2617-22. [PMID: 19496191 PMCID: PMC2691492 DOI: 10.3748/wjg.15.2617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the usefulness of FibroTest to forecast scores by constructing decision trees in patients with chronic hepatitis C.
METHODS: We used the C4.5 classification algorithm to construct decision trees with data from 261 patients with chronic hepatitis C without a liver biopsy. The FibroTest attributes of age, gender, bilirubin, apolipoprotein, haptoglobin, α2 macroglobulin, and γ-glutamyl transpeptidase were used as predictors, and the FibroTest score as the target. For testing, a 10-fold cross validation was used.
RESULTS: The overall classification error was 14.9% (accuracy 85.1%). FibroTest’s cases with true scores of F0 and F4 were classified with very high accuracy (18/20 for F0, 9/9 for F0-1 and 92/96 for F4) and the largest confusion centered on F3. The algorithm produced a set of compound rules out of the ten classification trees and was used to classify the 261 patients. The rules for the classification of patients in F0 and F4 were effective in more than 75% of the cases in which they were tested.
CONCLUSION: The recognition of clinical subgroups should help to enhance our ability to assess differences in fibrosis scores in clinical studies and improve our understanding of fibrosis progression.
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