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Updated: Jul 17, 2026
07:15
Invasion of Human Cells by a Bacterial Pathogen
Published on: March 21, 2011
Epstein-Barr virus infection and replication in a human epithelial cell system
Q X Li1, L S Young, G Niedobitek
1Department of Cancer Studies, University of Birmingham, UK.
Nature
|March 26, 1992
Summary
Epstein-Barr virus infects epithelial cells in a novel cell culture model, revealing differences in viral replication not seen in B cell infections. This breakthrough advances understanding of epithelial infection by this oncogenic virus.
Area of Science:
- Virology
- Cell Biology
- Oncology
Background:
- Epstein-Barr virus (EBV), a human herpesvirus, has oncogenic potential and infects B lymphocytes and stratified squamous epithelium.
- EBV's interaction with B cells is well-studied, but its infection of epithelial cells remains poorly understood due to a lack of suitable cell culture models.
Purpose of the Study:
- To develop an in vitro cell culture model for studying Epstein-Barr virus infection of epithelial cells.
- To investigate the mechanisms and outcomes of EBV infection and replication in epithelial cells.
Main Methods:
- Development of a cell culture model using CR2-expressing transfected human epithelial cell lines.
- Infection of these cell lines with EBV and analysis of viral gene expression and replication.
- Induction of epithelial differentiation to study virus productive cycle progression.
Main Results:
- CR2-expressing epithelial cells effectively bind and become infected by EBV.
- Infected cells express EBER RNAs and EBNA-1, but not other latent proteins.
- Epithelial differentiation can induce up to 30% of infected cells into the virus productive cycle, with some achieving full replication.
- Significant differences in epithelial infection efficiency were observed among laboratory EBV strains, independent of their B-cell growth-transforming activity.
Conclusions:
- A novel and effective cell culture model for studying EBV epithelial infection has been established.
- This model demonstrates that EBV can productively replicate in differentiated epithelial cells.
- EBV strains exhibit variable tropism for epithelial cells, suggesting distinct biological properties beyond B-cell transformation potential.
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