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Noninvasive Gene Electrotransfer in Skin.

Lise Pasquet1, Sophie Chabot1, Elisabeth Bellard1

  • 1Institut de Pharmacologie et de Biologie Structurale, Universite de Toulouse, CNRS, Toulouse, France.

Human Gene Therapy Methods
|January 12, 2019
PubMed
Summary
This summary is machine-generated.

Gene electrotransfer (GET) enhances DNA vaccine expression in the skin. This protocol details noninvasive intradermal GET for efficient, transient protein expression, crucial for gene therapy and vaccination strategies.

Keywords:
electroporationgene transferskin

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Area of Science:

  • Dermatology
  • Immunology
  • Biotechnology

Background:

  • The skin is a promising site for gene therapy and vaccination due to its immune properties.
  • DNA vaccines administered intradermally can induce robust humoral and cellular immune responses.
  • Enhancing gene expression in the skin often requires physical or chemical boosting methods.

Purpose of the Study:

  • To describe a step-by-step protocol for efficient gene electrotransfer (GET) targeted to the skin.
  • To utilize easy-to-use, noninvasive electrodes for intradermal plasmid injection (i.d. GET).
  • To demonstrate the transient expression of clinical proteins using this method.

Main Methods:

  • Intradermal injection of plasmid DNA encoding tdTomato.
  • Application of a specific pulse sequence using noninvasive electrodes for gene electrotransfer.
  • In vivo fluorescence imaging to monitor gene expression over time.

Main Results:

  • Efficient gene electrotransfer (GET) was achieved in the skin using the described protocol.
  • Transient expression of tdTomato was observed for over two weeks post-injection.
  • The protocol proved effective for delivering clinical proteins for transient expression.

Conclusions:

  • The described i.d. GET protocol offers an efficient method for boosting gene expression in the skin.
  • This technique is suitable for gene therapy and DNA vaccination applications requiring transient protein expression.
  • Noninvasive electrodes and a specific pulse sequence facilitate effective skin-targeted gene delivery.