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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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Gene-based therapy uses nucleic acids to treat diseases by modulating gene expression. Advances in non-viral delivery systems overcome biological barriers, showing promise in clinical trials.

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Nanomedicine

Background:

  • Gene-based therapy aims to treat diseases by altering gene expression using nucleic acids.
  • Effective delivery of these large, negatively charged molecules into cells is a major challenge.
  • Non-viral vectors are crucial for overcoming biological barriers in gene delivery.

Purpose of the Study:

  • To review biological barriers in in vivo gene delivery.
  • To highlight recent advancements in non-viral gene delivery systems.
  • To discuss the progress and potential of non-viral gene therapy.

Main Methods:

  • Review of current literature on gene delivery systems.
  • Analysis of material sciences, nanotechnology, and nucleic acid chemistry innovations.
  • Examination of non-viral delivery vectors and their clinical trial status.

Main Results:

  • Identification of key biological barriers hindering in vivo gene delivery.
  • Showcasing of novel non-viral delivery systems developed through interdisciplinary research.
  • Confirmation that several non-viral systems are progressing through clinical trials.

Conclusions:

  • Non-viral gene delivery systems are rapidly advancing.
  • Material sciences, nanotechnology, and nucleic acid chemistry are key drivers of progress.
  • Non-viral approaches represent a significant and growing area of gene-based therapy.