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Updated: May 14, 2026

Isolation and Quantification of Epstein-Barr Virus from the P3HR1 Cell Line
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Optimizing osmotic pressure removes EBV particles from B95-8 host cells while maintaining normal activity.

Min Pan1, Jing Shen, Jie Cai

  • 1Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University; Nanning, Guangxi 530021, P.R. China.

Experimental and Therapeutic Medicine
|February 14, 2013
PubMed
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This study shows that altering osmotic pressure can remove Epstein-Barr virus (EBV) from host cells. Hyposmotic solutions expelled virus particles while keeping cells healthy, a method also effective for human immunodeficiency virus (HIV).

Area of Science:

  • Virology
  • Cell Biology
  • Osmotic Pressure Effects

Background:

  • Epstein-Barr virus (EBV) infects B95-8 cells, a common model for viral research.
  • Understanding virus removal mechanisms is crucial for developing antiviral strategies.
  • Maintaining host cell viability during virus expulsion is a key challenge.

Purpose of the Study:

  • To investigate the effect of osmotic pressure on virus particle removal from infected host cells.
  • To determine if virus expulsion can be achieved while preserving normal cell activity.
  • To explore the potential application of this method for other viruses like HIV.

Main Methods:

  • B95-8 cells were infected with EBV and subsequently treated with isosmotic and hyposmotic NaCl solutions.
  • Virus particle expulsion was monitored using inverse phase contrast microscopy and transmission electron microscopy (TEM).
Keywords:
B95-8 cellEpstein-Barr virusoptimal osmotic pressure

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  • Cellular activity and organelle integrity were assessed under different osmotic conditions.

    • Main Results:

    • B95-8 cells maintained normal growth in hyposmotic solutions for 24-48 hours.
    • Hyposmotic treatment caused EBV particles to move from within the cells to the cell surface.
    • Organelle structures within the cells remained intact during virus expulsion.
    • The method was also successful in removing human immunodeficiency virus (HIV) from leukomonocytes.

    Conclusions:

    • Optimizing osmotic pressure is an effective strategy for removing EBV from B95-8 cells.
    • This method allows for virus expulsion while maintaining host cell viability and organelle integrity.
    • The findings suggest a potential new approach for antiviral therapies targeting enveloped viruses like EBV and HIV.