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Related Experiment Videos

Expression of lymphotoxin gene inserted into Theiler's murine encephalomyelitis virus.

M Obuchi1, T Odagiri, H Lizuka

  • 1Department of Microbiology, Kanazawa Medical University, Uchinada, Ishikawa, Japan.

Microbiology and Immunology
|April 1, 1999
PubMed
Summary
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Theiler

Area of Science:

  • Neurovirology
  • Molecular Biology
  • Gene Therapy

Background:

  • Theiler's murine encephalomyelitis virus (TMEV) DA strain causes polioencephalomyelitis and spinal cord demyelination.
  • TMEV exhibits viral persistence within the central nervous system.

Purpose of the Study:

  • To evaluate the potential of TMEV DA strain as a vector for gene delivery into the central nervous system.
  • To investigate the expression and biological activity of a foreign gene delivered by the TMEV vector.

Main Methods:

  • Genetic engineering of the TMEV DA genome to insert the human lymphotoxin (LT) gene.
  • Infection of BHK-21 cells with the recombinant virus.
  • Detection of LT expression using immunoblot and ELISA.
  • Assessment of LT cytotoxicity on L-929 cells.

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Main Results:

  • Successful insertion and expression of the human lymphotoxin (LT) gene in the TMEV genome.
  • Demonstrated LT expression in infected BHK-21 cells via immunoblot and ELISA.
  • Confirmed cytotoxic activity of the expressed LT in L-929 cells.

Conclusions:

  • The TMEV DA strain can be engineered as a vector for delivering foreign genes into the central nervous system.
  • The recombinant virus expresses functional human lymphotoxin with demonstrated cytotoxic effects.
  • This approach holds potential for future gene therapy strategies targeting the central nervous system.