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Related Concept Videos

Gene Therapy00:59

Gene Therapy

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Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
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Engineering AAV receptor footprints for gene therapy.

Victoria J Madigan1, Aravind Asokan2

  • 1Gene Therapy Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States; Curriculum in Genetics and Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.

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Summary

Adeno-associated viruses (AAV) are key for gene therapy. Researchers are engineering synthetic AAV capsids by understanding AAV structure and host interactions for improved gene delivery.

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Area of Science:

  • Virology and Gene Therapy
  • Structural Biology

Background:

  • Adeno-associated viruses (AAV) are extensively utilized as recombinant vectors in human gene therapy clinical trials.
  • Decades of research have significantly advanced the understanding of AAV structure, biology, and tropisms.
  • Specific AAV capsid interactions with host cell receptors have been identified and characterized.

Purpose of the Study:

  • To review the structural basis of AAV capsid-glycan interactions.
  • To provide a framework for engineering synthetic AAV strains with enhanced transduction profiles.
  • To leverage knowledge of AAV cell recognition and entry for improved gene therapy vectors.

Main Methods:

  • Structural analysis of AAV capsid-glycan interactions.
  • Characterization of host receptor binding determinants.
  • Review of current strategies for engineering AAV capsids.

Main Results:

  • Detailed insights into the structural mechanisms governing AAV cell recognition and entry.
  • Identification of key capsid regions involved in host receptor interactions.
  • A roadmap for designing synthetic AAV capsids with tailored tropisms.

Conclusions:

  • Understanding AAV capsid-receptor interactions is crucial for developing effective gene therapy vectors.
  • Engineering synthetic AAV strains offers a promising approach to optimize gene delivery efficiency and targeting.
  • Structural insights pave the way for next-generation AAV-based therapeutics.