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Published on: April 17, 2017
Hepatitis C virus infection, microRNA and liver disease progression
Shubham Shrivastava1, Anupam Mukherjee, Ratna B Ray
1Shubham Shrivastava, Anupam Mukherjee, Ratna B Ray, Department of Pathology, Saint Louis University, St. Louis, MO 63104, United States.
Insights
MicroRNAs (miRNAs) are key players in Hepatitis C virus (HCV) infection and liver disease progression. Targeting these miRNAs shows promise for novel HCV therapies.
Area of Science:
- Molecular virology
- Hepatology
- Biochemistry
Background:
- Hepatitis C virus (HCV) chronically infects 170-200 million people globally, leading to liver cirrhosis and cancer.
- MicroRNAs (miRNAs) regulate host cell factors essential for HCV replication and cell growth.
- Dysregulated miRNA expression is implicated in HCV pathogenesis, affecting cell proliferation, apoptosis, and migration.
Purpose of the Study:
- To review recent studies on the role of miRNAs in the Hepatitis C virus (HCV) life cycle.
- To explore the contribution of miRNAs to HCV-mediated liver disease progression.
- To highlight the potential of miRNAs as biomarkers and therapeutic targets for HCV infection.
Main Methods:
- Review of current scientific literature focusing on microRNA involvement in Hepatitis C virus infection.
- Analysis of studies investigating miRNA regulation of host factors and signaling pathways in HCV.
- Examination of research on circulating miRNAs as potential biomarkers for HCV disease progression.
Main Results:
- MicroRNAs significantly influence HCV infection establishment and propagation within hepatocytes.
- Targeting miRNAs, such as with anti-miRNA oligonucleotides (e.g., miravirsen), shows therapeutic potential.
- Circulating miRNAs are emerging as promising biomarkers for monitoring HCV disease progression and liver cell communication.
Conclusions:
- MicroRNAs are critical regulators in the Hepatitis C virus life cycle and HCV-induced liver disease.
- Therapeutic strategies targeting miRNAs offer a novel approach for treating chronic HCV infection.
- Further research into circulating miRNAs could enhance diagnostics and understanding of HCV pathogenesis.
Abstract:
Hepatitis C virus (HCV) is a global health problem with an estimated 170-200 million peoples (approximately 3% of world population) are chronically infected worldwide and new infections are predicted to be on rise in coming years. HCV infection remains categorized as a major risk factor for chronic hepatitis, liver cirrhosis and hepatocellular carcinoma worldwide. There has been considerable improvement in our understanding of virus life cycle since, the discovery of HCV two-decades ago. MicroRNAs (miRNAs) are important players in establishment of HCV infection and their propagation in infected hepatocytes. They target crucial host cellular factors needed for productive HCV replication and augmented cell growth. Very first anti-miRNA oligonucleotides, miravirsen has been tested in clinical trial and shown promising results as therapeutic agent in treatment against chronic HCV infection. Deregulated expression of miRNAs has been linked to the pathogenesis associated with HCV infection by controlling signaling pathways such as, proliferation, apoptosis and migration. Circulating miRNAs emerging as growing field in identification of biomarkers in disease progression and their potential as a means of communication between cells inside the liver is an exciting area of research in future. This review focuses on recent studies enforcing the contribution of miRNAs in HCV life cycle and coordinated regulation in HCV mediated liver disease progression.
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