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Epstein-Barr virus receptor expression is correlated to cell cycle phase
Journal of Receptor Research
|January 1, 1981
Summary
Epstein-Barr virus receptor expression varies across the cell cycle. Smaller cells in early G1 show higher receptor density than larger cells in G2/M and S phases.
Area of Science:
- Virology
- Cell Biology
- Immunology
Background:
- Epstein-Barr virus (EBV) infects B cells via its specific receptor.
- Understanding EBV receptor (EBVR) dynamics is crucial for viral entry mechanisms.
Purpose of the Study:
- To investigate the relationship between cell cycle progression and EBV receptor expression levels.
- To analyze EBVR density in relation to cell size and phase of the cell cycle.
Main Methods:
- Flow cytometry was used to analyze EBV receptor-positive cells.
- Cells were stained with FITC-conjugated EBV virions and propidium iodide for DNA content analysis.
Main Results:
- EBV receptor (EBVR) expression was detected throughout the entire cell cycle.
- EBVR levels increased during G1 and G2/M phases, remaining stable in S phase.
- Smaller cells in early G1 exhibited higher EBVR density per unit membrane compared to larger cells in G2/M and S phases.
Conclusions:
- EBV receptor expression is cell cycle-dependent, with distinct patterns observed in different phases.
- Cell size correlates with EBVR density, suggesting regulatory mechanisms influencing viral binding capacity.