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Related Experiment Videos

Transgenic farm animals: an update.

Heiner Niemann1, Wilfried A Kues

  • 1Department of Biotechnology, Institute for Animal Breeding, Mariensee, 31535 Neustadt, Germany. niemann@tzv.fal.de

Reproduction, Fertility, and Development
|August 24, 2007
PubMed
Summary
This summary is machine-generated.

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Transgenic farm animal research is advancing with new techniques like somatic nuclear transfer and lentiviral vectors. This progress supports the development of novel therapeutics, such as recombinant antithrombin III, for human diseases.

Area of Science:

  • Biotechnology
  • Animal Science
  • Genetics

Background:

  • Transgenic livestock development began in 1985, initially relying on microinjection.
  • Somatic nuclear transfer and lentiviral vectors are emerging as more efficient transgenesis methods.
  • Small interfering ribonucleic acid (siRNA) technology is also a key tool in modern transgenesis.

Purpose of the Study:

  • To review recent advancements in transgenic techniques for farm animals.
  • To highlight the impact of new technologies on animal transgenesis.
  • To discuss the implications of regulatory approvals for recombinant protein production in transgenic animals.

Main Methods:

  • Microinjection of foreign DNA into zygotes (historical method).
  • Somatic nuclear transfer for targeted genetic modifications.

Related Experiment Videos

  • Lentiviral vectors and siRNA technology for efficient gene transfer.

    • Main Results:

    • Somatic nuclear transfer protocols are replacing microinjection due to higher efficiency.
    • Lentiviral vectors and siRNA technology are increasingly utilized.
    • The first recombinant protein (antithrombin III) from transgenic animals received regulatory approval in 2006.

    Conclusions:

    • New transgenic techniques are significantly improving efficiency and precision in farm animals.
    • Regulatory approval of recombinant proteins from transgenic animals marks a milestone.
    • Continued research in farm animal transgenesis is expected to yield further therapeutic and biotechnological innovations.