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Liver-targeted gene therapy: Approaches and challenges

Rajagopal N Aravalli1, John D Belcher2, Clifford J Steer2,3

  • 1Departments of Radiology, Cell Biology, and Development, University of Minnesota Medical School, Minneapolis, MN.

Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
|April 1, 2015
PubMed

Insights

Novel gene therapy tools show promise for liver genetic disorders. Researchers are developing targeted gene approaches using advanced technologies to overcome limitations in treating liver diseases effectively.

Area of Science:

  • Hepatology
  • Molecular Biology
  • Genetic Medicine

Background:

  • The liver is central to many inherited and acquired genetic disorders and metabolic diseases.
  • Current nucleic acid-based therapies for liver conditions face significant side effects and limitations.

Purpose of the Study:

  • To review current and emerging therapeutic strategies for liver-targeted gene therapy and gene repair.
  • To highlight advancements in genetic tools and delivery vectors for liver gene modification.

Main Methods:

  • Review of novel genetic tools including zinc-finger nucleases, transcription activator-like effector nucleases, and CRISPR-Cas9.
  • Examination of nonviral vectors like Sleeping Beauty transposons, PiggyBac transposons, and PhiC31 integrase.
  • Focus on efficient DNA and RNA delivery methods into liver cells.

Main Results:

  • Identification of advanced genetic tools for precise gene modification in the liver.
  • Evaluation of various nonviral vectors for effective gene delivery.
  • Emphasis on the critical role of efficient molecular delivery for therapeutic success.

Conclusions:

  • Targeted gene approaches using novel genetic tools and vectors offer promising therapeutic strategies for liver diseases.
  • Overcoming delivery limitations is key to advancing liver-targeted gene therapy and gene repair.
  • Continued research in this area holds potential for treating a range of liver genetic disorders.

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