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13:04
A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Microarray analysis identifies a common set of cellular genes modulated by different HCV replicon clones
Anna Rita Ciccaglione1, Cinzia Marcantonio, Elena Tritarelli
1Department of Infectious, Parasitic and Immunomediated Diseases, Istituto Superiore di Sanità, Rome, Italy. annarita.ciccaglione@iss.it
BMC Genomics
|July 2, 2008
Summary
Hepatitis C virus (HCV) replication alters gene expression in liver cells. This study identified 38 modulated genes, including novel targets for antiviral therapies.
Area of Science:
- Hepatology
- Virology
- Molecular Biology
Background:
- Hepatitis C virus (HCV) replication impacts cellular homeostasis through gene expression modulation.
- The global transcriptional effects of HCV replication remain incompletely understood.
- This study investigates gene expression profiles in human hepatoma-derived Huh-7 cells harboring an HCV replicon system.
Purpose of the Study:
- To analyze the global gene expression changes induced by Hepatitis C virus (HCV) replication in human hepatoma cells.
- To identify specific transcriptional programs associated with HCV replication.
- To discover novel genes modulated by HCV that could serve as potential antiviral targets.
Main Methods:
- Utilized the Applied Biosystems (AB) Human Genome Survey Microarray v1.0 for comprehensive gene expression analysis.
- Compared gene expression profiles of HCV replicon clones (21-5, 22-6, 21-7) with parental Huh-7 cells and IFN-alpha-cured cells (21-5c).
- Identified differentially expressed genes using Venn diagrams and analyzed functional enrichment with the Panther System.
Main Results:
- HCV replication induced a distinct transcriptional program in replicon cells compared to control and cured cells.
- A list of 38 genes, consistently modulated across all HCV replicon clones, was identified.
- Enriched functional categories included histones, ribosomal proteins, extracellular matrix, and intracellular protein traffic, with novel genes in lipid metabolism and cytoskeletal networks also identified.
Conclusions:
- This study provides a comprehensive analysis of gene expression alterations driven by HCV replication.
- Identified novel genes modulated by HCV replication, offering potential new targets for antiviral drug development.
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01:58Cell Specific Gene Expression
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...