Innate immunity against hepatitis C virus.

Innate immunity against hepatitis C virus. Curr Opin Immunol. 2016 Jun 28;42:98-104 Authors: Xu Y, Zhong J Abstract Hepatitis C virus (HCV) infection tends persistent and causes chronic liver diseases, including inflammation, cirrhosis and hepatocellular carcinoma. Innate immune responses triggered by HCV infection, particularly the production of interferons and pro-inflammatory cytokines, shape the early host antiviral defense, and orchestrate subsequent HCV-specific adaptive immunity. Host has evolved multifaceted means to sense HCV infection to induce innate immune responses, whereas HCV has also developed elaborate strategies to evade immune attack. Recent studies in the field have provided many new insights into the interplay of HCV and innate immunity. In this review, we summarized these recent advances, focusing on pathogen recognition by innate sensors, newly discovered anti-HCV innate effectors and new viral strategies to evade innate immunity. PMID: 27366996 [PubMed - as supplied by publisher]
Source: Current Opinion in Immunology - Category: Allergy & Immunology Authors: Tags: Curr Opin Immunol Source Type: research

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ConclusionA substantial further reduction in cases of HCC requires a wider application of universal HBV vaccination and effective treatment of HBV- and HCV-related chronic hepatitis and cirrhosis, more effective campaigns to favor correct dietary habits and reduce alcohol consumption and the intensification of studies on HCC pathogenesis for future optimized prevention strategies.
Source: Infection - Category: Infectious Diseases Source Type: research
CONCLUSIONS: HCV genotype 3, specifically subtype 3b, is associated with more rapid progression of liver disease. Further analysis to compare HCV subtype 3a and 3b is needed in high prevalence regions. TRIAL REGISTRATION: NCT01293279, https://clinicaltrials.gov/ct2/show/NCT01293279; NCT01594554, https://clinicaltrials.gov/ct2/show/NCT01594554. PMID: 31934936 [PubMed - as supplied by publisher]
Source: Chinese Medical Journal - Category: General Medicine Authors: Tags: Chin Med J (Engl) Source Type: research
k A Abstract BACKGROUND: There is ongoing search for new noninvasive biomarkers to improve management of patients with hepatocellular carcinoma (HCC). Studies, mostly from the Asian-Pacific region, demonstrated differential expression of liver-specific microRNA-122 (miR-122) in tissue as well as in sera of patients with hepatitis B virus- and hepatitis C virus-induced HCC. AIM: To evaluate prognostic value of miR-122 in patients with HCC in a European population and determine potential factors related to alteration of miR-122 in sera. METHODS: Patients with confirmed HCC (n = 91) were included in the stu...
Source: World Journal of Gastroenterology : WJG - Category: Gastroenterology Authors: Tags: World J Gastroenterol Source Type: research
Hepatitis C virus (HCV) represents an important and growing public health problem, chronically infecting an estimated 70 million people worldwide. This blood-borne pathogen is generating a new wave of infections in the United States, associated with increasing intravenous drug use over the last decade. In most cases, HCV establishes a chronic infection, sometimes causing cirrhosis, end-stage liver disease, and hepatocellular carcinoma. Although a curative therapy exists, it is extremely expensive and provides no barrier to reinfection; therefore, a vaccine is urgently needed. The virion is asymmetric and heterogeneous with...
Source: Cold Spring Harbor perspectives in medicine - Category: Research Authors: Tags: Hepatitis C Viruses: The Story of a Scientific and Therapeutic Revolution PERSPECTIVES Source Type: research
Hepatitis C virus (HCV) is a major cause of liver disease including metabolic disease, fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). HCV induces and promotes liver disease progression by perturbing a range of survival, proliferative, and metabolic pathways within the proinflammatory cellular microenvironment. The recent breakthrough in antiviral therapy using direct-acting antivirals (DAAs) can cure>90% of HCV patients. However, viral cure cannot fully eliminate the HCC risk, especially in patients with advanced liver disease or comorbidities. HCV induces an epigenetic viral footprint that promotes a pro-onco...
Source: Cold Spring Harbor perspectives in medicine - Category: Research Authors: Tags: Hepatitis C Viruses: The Story of a Scientific and Therapeutic Revolution PERSPECTIVES Source Type: research
Publication date: Available online 17 December 2019Source: Antiviral ResearchAuthor(s): Hee Sun Kim, Youngsu You, Jae Gon Mun, Changdev G. Gadhe, Heejo Moon, Jae Seung Lee, Ae Nim Pae, Michinori Kohara, Gyochang Keum, Byeong Moon Kim, Sung Key JangAbstractApproximately 71 million people suffer from hepatitis C virus (HCV) infection worldwide. Persistent HCV infection causes liver diseases such as chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma, resulting in approximately 400,000 deaths annually. Effective direct-acting antiviral agents (DAAs) have been developed and are currently used for HCV treatment tar...
Source: Antiviral Therapy - Category: Virology Source Type: research
Abstract Approximately 71 million people suffer from hepatitis C virus (HCV) infection worldwide. Persistent HCV infection causes liver diseases such as chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma, resulting in approximately 400,000 deaths annually. Effective direct-acting antiviral agents (DAAs) have been developed and are currently used for HCV treatment targeting the following three proteins: NS3/4A proteinase that cleaves the HCV polyprotein into various functional proteins, RNA-dependent RNA polymerase (designated as NS5B), and NS5A, which is required for the formation of double membrane ...
Source: Antiviral Research - Category: Virology Authors: Tags: Antiviral Res Source Type: research
Conclusions. Hispanic patients with cirrhosis experience a survival advantage over many other racial groups despite adjustment for multiple covariates.
Source: Transplantation - Category: Transplant Surgery Tags: Original Clinical Science—Liver Source Type: research
This study aims to develop a non-invasive diagnostic tool based on measuring the serum levels of different miRNAs in order to detect HCV-induced HCC at the early stages of the disease. Material and methods: Five main miRNAs (miRNA-122a, miRNA-125a, miRNA-139, miRNA-145, and miRNA-199a) were selected according to the literature that demonstrated their unique expression pattern during HCC development. Serum samples were collected from 42 cases of chronic hepatitis C (CHC) without cirrhosis, 45 cases of CHC with cirrhosis (LC), 38 cases of HCC with HCV, and 40 healthy individuals serving as a control. The five miRNAs were...
Source: Archives of Medical Science - Category: General Medicine Tags: Arch Med Sci Source Type: research
Contributors : Soma Banerjee ; Shaleen Aggarwal ; Subash Gupta ; Sukanta Ray ; Raghunath ChatterjeeSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensChronic hepatitis C (CHC) is one of the major risk factor for the progressive development of end stage liver diseases including liver cirrhosis (LC) and HCC worldwide. A deep insight into the molecular mechanism of development and progression of liver fibrosis into cirrhosis and HCC following chronic HCV infection leads to characterization of multiple cellular processes and the underlying regulatory mechanisms. Non-coding RNAs (sncRNAs) inc...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research
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