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Isolation of Next-Generation Gene Therapy Vectors through Engineering, Barcoding, and Screening of Adeno-Associated Virus (AAV) Capsid Variants
Published on: October 18, 2022
Artificial and engineered chromosomes: non-integrating vectors for gene therapy
Joydeep Basu1, Huntington F Willard
1Institute for Genome Sciences and Policy, Duke University, Durham, NC 27708, USA. joydeep.basu@duke.edu
Non-integrating gene-delivery vectors show promise for gene therapy. However, challenges in composition and delivery currently limit the clinical use of artificial or engineered chromosomes.
Area of Science:
- Biotechnology
- Molecular Biology
- Genetics
Background:
- Non-integrating gene-delivery platforms are explored for gene therapy.
- Distinguishing between 'artificial' and 'engineered' human chromosomes remains unclear.
- Significant technical hurdles impede the clinical application of these vectors.
Purpose of the Study:
- To review and compare different classes of non-integrating gene-delivery vectors.
- To assess their potential as practical gene-transfer platforms for gene therapy.
- To summarize recent advancements and remaining challenges.
Main Methods:
- Examination of principal classes of non-integrating vectors (episomes, engineered mini-chromosomes, human artificial chromosomes).
- Comparative analysis of vector potential for gene transfer.
- Review of recent progress in chromosome-engineering technology.
Main Results:
- Non-integrating vectors, including episomes and engineered chromosomes, are under development.
- Progress in chromosome engineering has been made.
- Challenges persist in defining composition and ensuring effective delivery.
Conclusions:
- Artificial and engineered chromosomes face obstacles in composition and delivery.
- These limitations currently prevent their acceptance as viable gene-delivery platforms.
- Further research is needed to overcome technical challenges for clinical utility.
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