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The live vector approach-viruses.

M Mackett1

  • 1Cancer Research Campaign Laboratories, Paterson Institute for Cancer Research, Christie Hospital and Holt Radium Institute, Wilmslow Rd., M20 9BX, Withington, Manchester, UK.

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|January 16, 2014
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Summary
This summary is machine-generated.

Recombinant DNA technology enables engineering vaccinia virus (the smallpox vaccine) as a versatile expression system for developing novel vaccines against foreign pathogens. Vaccinia recombinants show promise for animal vaccines and studying cellular immunity.

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Area of Science:

  • Molecular Biology
  • Virology
  • Vaccinology

Background:

  • Recombinant DNA technology allows expression of foreign genes in viruses and bacteria.
  • This has spurred the development of live attenuated vaccines expressing protective antigens from pathogens.

Purpose of the Study:

  • To explore the use of vaccinia virus as a platform for engineering live attenuated vaccines.
  • To assess the potential of vaccinia recombinants for vaccine development and studying cellular immunity.

Main Methods:

  • Engineering vaccinia virus (smallpox vaccine) as a recombinant expression system.
  • Developing and testing vaccinia recombinants expressing foreign antigens in animal models.

Main Results:

  • Hundreds of vaccinia recombinants have been created, with many demonstrating protective immunity in animals.
  • Field trials of a vaccinia recombinant expressing rabies virus glycoprotein have shown success.

Conclusions:

  • Vaccinia virus is a valuable expression system, particularly for studying cellular immunity.
  • Vaccinia recombinants show significant potential as animal vaccines and for developing new vaccines against infectious diseases.