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https://www.readbyqxmd.com/read/29340806/distribution-of-il28b-and-il10-polymorphisms-as-genetic-predictors-of-treatment-response-in-pakistani-hcv-genotype-3-patients
#1
Humaira Naeemi, Rabia Aslam, Syed Mohsin Raza, Muhammad Aiman Shahzad, Shagufta Naz, Sobia Manzoor, Saba Khaliq
There are over 10 million hepatitis C virus (HCV)-infected patients in Pakistan. For these patients, a combination of interferon with ribavirin is the most economical and easily available treatment. Single-nucleotide polymorphisms in interleukin genes have been reported to be associated with the pathogenesis and clearance of HCV, and sustained virologic response (SVR). An interleukin 28B (IL28B) gene polymorphism has been shown to modify treatment outcomes, but the effects of interleukin 10 (IL10) polymorphisms have not been previously assessed in the Pakistani population...
January 16, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29330418/hla-b-hla-c-and-kir-improve-the-predictive-value-of-ifnl3-for-hepatitis-c-spontaneous-clearance
#2
Mario Frias, Antonio Rivero-Juárez, Diego Rodriguez-Cano, Ángela Camacho, Pedro López-López, María Ángeles Risalde, Bárbara Manzanares-Martín, Teresa Brieva, Isabel Machuca, Antonio Rivero
IFNL3 is the strongest predictor of spontaneous resolution (SR) of hepatitis C virus (HCV), however, consideration of IFNL3 genotype alone is of limited clinical value for the prediction of SR or chronic HCV infection. The objective of this study was to analyze the impact of HLA-B, HLA-C and KIRs on SR, as well as their additive effects on the predictive value of the IFNL3 genotype. We conducted a retrospective study of HIV patients that included both SR and chronic HCV patients. In our study, 61.6% of patients with IFNL3 CC achieved SR, and 81...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322425/production-of-recombinant-killer-immunoglobulin-like-receptors-for-crystallography-and-luminex-based-assays
#3
Phillip Pymm, Julian P Vivian
The killer immunoglobulin-like receptors (KIR) are a highly diverse family of cell-surface receptors that are of importance to the effector function of Natural Killer cells. KIR have been implicated in the detection and clearance of malignantly transformed cells and in the immune-control of viruses including HIV, HCV and CMV. Recently, the mismatching of donor and recipient KIR has been demonstrated to improve success of hematopoietic stem cell transplantation treatments of leukemias. Due to the high degree of diversity amongst the KIR, a number of strategies are required for the production of recombinant protein for medical, biochemical and structural applications...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29313175/a-biomolecular-network-driven-proteinic-interaction-in-hcv-clearance
#4
Pratichi Singh, Febin Prabhu Dass J
Hepatitis C virus infection causes chronic liver disease that leads to cancer-related mortality. Presently around 30% of the HCV (infected) affected population get rid of the infection through spontaneous disease clearance. This phenomenon is conducted by a set of reported immune candidate genes. Hence, this study focuses only on these immune-response related genes with aid of network approach, where the idea is to disseminate the network for better understanding of key functional genes and their transcription control activity...
January 8, 2018: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29311624/genetic-variations-in-nf-%C3%AE%C2%BAb-were-associated-with-the-susceptibility-to-hepatitis-c-virus-infection-among-chinese-high-risk-population
#5
Ting Tian, Jie Wang, Peng Huang, Jun Li, Rongbin Yu, Haozhi Fan, Xueshan Xia, Yaping Han, Yun Zhang, Ming Yue
Polymorphisms within NF-κB pathway genes may be linked to hepatitis C virus (HCV) infection susceptibility and outcomes. We investigated the associations between single nucleotide polymorphisms (SNPs) in NF-κB and the susceptibility as well as resolution of HCV infection. A Chinese population, including 1125 uninfected control cases, 558 cases with spontaneous viral clearance and 898 cases with persistent HCV infection, was genotyped for four SNPs (rs11820062, rs230530, rs1056890 and rs3774963) using a TaqMan assay...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29290908/liver-decompensation-predicts-ribavirin-overexposure-in-hepatitis-c-virus-patients-treated-with-direct-acting-antivirals
#6
Viola Guardigni, Lorenzo Badia, Matteo Conti, Matteo Rinaldi, Rita Mancini, Pierluigi Viale, Gabriella Verucchi
AIM: To determine whether ribavirin (RBV) concentrations differ according to cirrhosis stage among cirrhotic patients treated with interferon-free regimens. METHODS: We included patients with hepatitis C virus and cirrhosis [Child-Pugh (CP) A or B], Glomerular Filtration Rate ≥ 60 mL/min, who started therapy with DAAs and weight-based RBV between October 2014 and February 2016. RBV plasma levels were assessed during the treatment. We focused our analysis on the first 8 wk of therapy...
December 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/29288753/impact-of-comorbidities-on-patients-outcomes-after-interferon-free-therapy-induced-viral-eradication-in-hepatitis
#7
Javier Ampuero, Carlota Jimeno, Rosa Quiles, José Miguel Rosales, Susana Llerena, Nieves Palomo, Patricia Cordero, Francisco Javier Serrano, Juan José Urquijo, José María Moreno-Planas, Guillermo Ontanilla, Marta Hernández, Aída Ortega-Alonso, Marta Maraver, Martín Bonacci, Ángela Rojas, Blanca Figueruela, Xavier Forns, Raúl J Andrade, José Luis Calleja, Moisés Diago, Isabel Carmona, Manuel de la Mata, María Buti, Javier Crespo, Juan Manuel Pascasio, José María Navarro, Javier Salmerón, Manuel Romero-Gómez
BACKGROUND&AIMS: Patients with advanced liver fibrosis remain at risk of cirrhosis-related outcomes and those with severe comorbidities could not benefit from Hepatitis C (HCV) eradication. We aimed to collect all-cause mortality and relevant clinical events within the first two years in patients undergoing direct antiviral therapy and determine the impact of a comorbidity-based model on it. METHODS: This was a prospective non-interventional study, from the beginning of direct-acting antiviral therapy to the event of interest (mortality) or up to 2 years of follow-up, including 14 Spanish University Hospitals...
December 27, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29275010/interleukin-7-augments-cd8-t-cells-function-and-promotes-viral-clearance-in-chronic-hepatitis-c-virus-infection
#8
Huanrong Hou, Yi Kang, Yanli Zeng, Yukui Li, Jia Shang
Interleukin (IL)-7 is a potent proliferation, activation, and survival cytokine for CD8+ T cells to improve viral and tumor specific CD8+ T cell responses. However, the role of IL-7 in regulation of dysfunctional hepatitis C virus (HCV)-specific CD8+ T cells was not fully elucidated. Thus, a total of 53 patients with chronic hepatitis C and 24 healthy individuals were enrolled in the current study. Serum IL-7 and its receptor α chain CD127 expression was measured. The modulatory function of IL-7 to CD8+ T cells was investigated in both direct and indirect contact co-culture with HCVcc-infected Huh7...
December 21, 2017: Cytokine
https://www.readbyqxmd.com/read/29243064/interferon-lambda4-polymorphism-is-not-associated-with-human-papillomavirus-infection-outcome
#9
Fabiana Cannella, Carolina Scagnolari, Maura Statzu, Ilaria Sciandra, Nadia Recine, Gabriella d'Ettorre, Guido Antonelli, Alessandra Pierangeli
Interferon (IFN) lambdas are important specific components of the mucosal innate immune response. The IFN lambda 4 (IFNL4) dinucleotide polymorphism (ΔG/TT) determines the IFN lambdas and related Interferon-stimulated genes activation, in HCV and other chronic infections. Our group first reported that IFN Lambda response was impaired in high-risk Human Papillomavirus (HPV) cervical infections and in precancerous lesions. Accordingly, we sought to evaluate the possible role of the IFNL4 polymorphism in determining HPV infection outcome...
December 14, 2017: Virus Genes
https://www.readbyqxmd.com/read/29228983/characterization-of-interactions-between-hepatitis-c-virus-ns5b-polymerase-annexin-a2-and-rna-effects-on-ns5b-catalysis-and-allosteric-inhibition
#10
Sara M Ø Solbak, Eldar Abdurakhmanov, Anni Vedeler, U Helena Danielson
BACKGROUND: Direct acting antivirals (DAAs) provide efficient hepatitis C virus (HCV) therapy and clearance for a majority of patients, but are not available or effective for all patients. They risk developing HCV-induced hepatocellular carcinoma (HCC), for which the mechanism remains obscure and therapy is missing. Annexin A2 (AnxA2) has been reported to co-precipitate with the non-structural (NS) HCV proteins NS5B and NS3/NS4A, indicating a role in HCC tumorigenesis and effect on DAA therapy...
December 11, 2017: Virology Journal
https://www.readbyqxmd.com/read/29228501/hcv-clearance-by-direct-acting-antiviral-treatments-reverses-insulin-resistance-in-chronic-hepatitis-c-patients
#11
Luigi E Adinolfi, Riccardo Nevola, Barbara Guerrera, Giovanni D'Alterio, Aldo Marrone, Mauro Giordano, Luca Rinaldi
BACKGROUND AND AIM: Chronic hepatitis C (HCV), particularly genotype 1, is associated with insulin resistance (IR) and diabetes. We evaluated the impact of HCV clearance by all-oral direct-acting antiviral (DAAs) treatments on IR and glycemic control. METHODS: Included in this prospective case-control study were 133 consecutive HCV-genotype 1 patients with advance liver fibrosis (F3-F4) without type 2 diabetes. Sixty-eight treated with DAAs and 65 untreated. Liver fibrosis was assessed by transient elastography...
December 11, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29226133/circulating-interferon-%C3%AE-3-responsiveness-to-hbv-vaccination-and-hbv-hcv-infections-in-haemodialysis-patients
#12
Alicja E Grzegorzewska, Monika K Świderska, Adrianna Mostowska, Paweł P Jagodziński
The IFN-λ3 gene (IFNL3) plays a role in HCV clearance. We investigated circulating IFN-λ3 and IFNL3 SNPs in haemodialysis patients who differed in their response to HBV vaccination and their HBV/HCV infection status. In 201 patients, plasma IFN-λ3 was determined using ELISA. IFNL3 SNPs (rs12979860, rs8099917) were genotyped using HRM analysis. Differences in IFN-λ3 levels were shown between responders and nonresponders to HBV vaccination and between HBsAg-positive patients and those who developed anti-HBs after infection and became HBsAg negative...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29221196/identification-of-cellular-genes-and-pathways-important-for-tumorigenicity-of-hepatocellular-carcinoma-cell-lines-by-proteomic-profiling
#13
Ali Zamani, Huahao Fan, Guangxiang Luo
Hepatocellular carcinoma (HCC) is the most commonly diagnosed malignancy of the liver. A more thorough understanding of HCC pathogenesis will provide novel targets for development of cancer drugs to effectively treat HCC. To further this goal, we carried out a proteomic profiling of HCC cell lines Huh-7.4 and Huh-7.5. These two cell lines were derived from subgenomic HCV RNA-replicating Huh-7 cells upon clearance of HCV RNA by antiviral drug treatment. Initially, the tumorigenicity of each cell line was determined and compared in parallel in the same immunedeficient mice...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29212520/the-relationship-between-human-leukocyte-antigen-dp-dq-gene-polymorphisms-and-the-outcomes-of-hcv-infection-in-a-chinese-population
#14
Peng Huang, Haozhi Fan, Ting Tian, Peiwen Liao, Jun Li, Rongbin Yu, Xueshan Xia, Yue Feng, Jie Wang, Yuan Liu, Yun Zhang, Ming Yue
BACKGROUND: Recently, human leukocyte antigen (HLA) class-II gene polymorphisms have been reported to be related to Hepatitis C virus (HCV) infection and chronicity. The objective of this study was to explore the relationship of HLA-DP rs9277535 and HLA-DQ rs7453920 with the outcomes of HCV infection. METHODS: The rs9277535 and rs7453920 were genotyped in 370 subjects with chronic HCV infection, 194 subjects with spontaneous HCV clearance, and 973 subjects with non-HCV infection from the Chinese population using the ABI TaqMan allelic discrimination assay...
December 6, 2017: Virology Journal
https://www.readbyqxmd.com/read/29212314/rapid-changes-in-serum-lipid-profiles-during-combination-therapy-with-daclatasvir-and-asunaprevir-in-patients-infected-with-hepatitis-c-virus-genotype-1b
#15
Takeshi Chida, Kazuhito Kawata, Kazuyoshi Ohta, Erika Matsunaga, Jun Ito, Shin Shimoyama, Satoru Yamazaki, Hidenao Noritake, Tetsuro Suzuki, Takafumi Suda, Yoshimasa Kobayashi
Background/Aims: Changes in lipid profiles in patients infected with hepatitis C virus (HCV) during direct-acting antiviral therapy have been reported in recent years. However, the clinical aspects of disturbed lipid metabolism in chronic HCV infection have not been fully elucidated. Methods: Dynamic changes in serum total, low-density lipoprotein (LDL), and high-density lipoprotein (HDL) cholesterol and apolipoprotein levels in patients infected with HCV genotype 1b were examined during combination therapy with daclatasvir (DCV) and asunaprevir (ASV)...
December 8, 2017: Gut and Liver
https://www.readbyqxmd.com/read/29205405/interferon-free-therapy-of-chronic-hepatitis-c-with-direct-acting-antivirals-does-not-change-the-short-term-risk-for-de-novo-hepatocellular-carcinoma-in-patients-with-liver-cirrhosis
#16
F Mettke, B Schlevogt, K Deterding, A Wranke, A Smith, K Port, M P Manns, A Vogel, M Cornberg, H Wedemeyer
BACKGROUND: Hepatitis C virus (HCV) clearance with IFN-based therapies reduces the incidence of hepatocellular carcinoma (HCC). There has been some debate if IFN-free therapy with direct-acting antivirals alters the risk for HCC. AIM: To investigate the HCC incidence in cirrhotic HCV patients who cleared HCV with direct-acting antivirals vs untreated controls. METHODS: We prospectively monitored 373 patients with chronic hepatitis C who received IFN-free therapies with direct-acting antiviral after January 2014...
December 4, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29202115/rapid-changes-in-peripheral-lymphocyte-concentrations-during-interferon-free-treatment-of-chronic-hepatitis-c-virus-infection
#17
Eric G Meissner, Anita Kohli, Jeanette Higgins, Yu-Jin Lee, Olga Prokunina, David Wu, Cody Orr, Henry Masur, Shyam Kottilil
Treatment of chronic hepatitis C virus infection with direct acting antivirals results in a rapid decline in viral load and markers of hepatic inflammation, including serum CXCL10 concentration, which is followed in most cases by a sustained virologic response. Whether parallel changes of significance occur in the cellular composition of peripheral blood is relatively unknown. We hypothesized that longitudinal characterization of peripheral blood during treatment would provide insight into cellular migration and immune activation, which would have implications for understanding host immunity both before and after HCV treatment and may relate to HCV clearance...
September 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29196132/association-of-tnf-alpha-308-a-g-and-ifn-gamma-874-a-t-gene-polymorphisms-in-response-to-spontaneous-and-treatment-induced-viral-clearance-in-hcv-infected-multitransfused-thalassemic-patients
#18
Aritra Biswas, Nabyendu Gupta, Debanjali Gupta, Abira Datta, Rushna Firdaus, Prosanto Chowdhury, Maitreyee Bhattacharyya, Provash C Sadhukhan
BACKGROUND: Multitransfused thalassemic individuals are at high risk of developing transfusion transmitted Hepatitis C virus (HCV) infection. The aim of the study was to correlate the effects of host cytokine single nucleotide polymorphisms of TNF-α (-308 A/G) and IFN-γ (+874 A/T) in spontaneous or IFN induced treatment response in the HCV infected thalassemic individuals. METHODS: A total of 427 HCV sero-reactive thalassemic individuals were processed for HCV viral genomic diversity and host gene polymorphisms analysis of TNF-α (-308 A/G) and IFN-γ (+874 A/T)...
November 28, 2017: Cytokine
https://www.readbyqxmd.com/read/29185964/recurrence-of-mixed-cryoglobulinaemia-vasculitis-following-influenza-vaccination-despite-clearance-of-hepatitis-c-virus-infection
#19
Salvatore Sollima, Laura Milazzo, Paolo Vassalini, Spinello Antinori, Massimo Galli
No abstract text is available yet for this article.
November 21, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29178838/hepatitis-c-virus-eradication-improves-immediate-and-delayed-episodic-memory-in-patients-treated-with-interferon-and-ribavirin
#20
Mary Ellen Dias Barbosa, Ana Luiza Zaninotto, Daniel Ferraz de Campos Mazo, Mario Guimarães Pessoa, Cláudia Pinto Marques Souza de Oliveira, Flair José Carrilho, Alberto Queiroz Farias
BACKGROUND: Chronic hepatitis C virus (HCV) infection is associated with impairment of cognitive function and mood disorders. Our aim was to evaluate the impact of sustained virological response (SVR) on cognitive function and mood disorders. METHOD: A prospective exploratory one arm study was conducted. Adult clinically compensated HVC patients were consecutively recruited before treatment with interferon and ribavirin for 24 to 48 weeks, according to HCV genotype...
November 25, 2017: BMC Gastroenterology
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