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Related Experiment Video

Updated: Dec 26, 2025

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Epstein-Barr virus-derived vector suitable for long-term expression in neurons.

Kazuyuki Kiyosue1, Yoshihiro Miwa2

  • 1Functional Biomolecule Research Group and DAILAB, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Osaka 563-8577, Japan.

Heliyon
|March 20, 2020
PubMed
Summary
This summary is machine-generated.

Epstein-Barr virus (EB) vectors enable long-term exogenous gene expression in rodent neurons without genome integration. This modified EB vector is a valuable tool for studying neuronal gene function.

Keywords:
Cell biologyElectrophysiologyEpisomeEpstein-barr virus based vectorLong-term exogenous gene expressionNervous systemNeurologyNeuronal deathNeurosciencePlasmid vectorPostmitotic cell

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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • Exogenous gene expression is crucial for understanding neuronal function.
  • Current methods like lentivirus vectors have limitations, including potential host genome disruption.
  • Epstein-Barr virus (EBV)-derived vectors offer episomal maintenance in human cells but lacked testing in rodent neurons.

Purpose of the Study:

  • To evaluate the utility of the EB vector for exogenous gene expression in rodent neurons.
  • To determine the duration and stability of gene expression using EB vectors in neurons.
  • To identify essential elements for long-term episomal vector retention in neurons.

Main Methods:

  • Transfection of rodent neurons with modified EB vectors.
  • Expression analysis of exogenous proteins (GFP, GFP-tagged actin) over time.
  • Assessment of tetracycline-inducible gene expression system activity.
  • Investigation of plasmid retention elements, specifically the Family of repeat element.

Main Results:

  • Exogenous proteins were detectable in neurons for over three weeks post-transfection.
  • The tetracycline-inducible system remained active for three weeks, confirming plasmid retention.
  • The Family of repeat element was identified as essential for long-term EB vector presence in neurons.

Conclusions:

  • The modified EB vector is a practical and effective tool for long-term gene function studies in neurons.
  • Episomal maintenance by EB vectors provides a safer alternative to integrating vectors.
  • This method facilitates the investigation of gene function in neuronal research.