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Updated: Jun 11, 2026

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CRISPR/Cas9 Gene Editing of Hematopoietic Stem and Progenitor Cells for Gene Therapy Applications
Published on: August 9, 2022
Gene therapy in haemophilia--going for cure?
1Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Summary
Gene transfer offers a novel approach for haemophilia treatment by enabling continuous expression of activated factor VII (FVII), overcoming limitations of traditional therapies and short-acting recombinant FVII. This method shows promise in preclinical animal models.
Area of Science:
- Hematology
- Gene Therapy
- Biotechnology
Background:
- Traditional haemophilia treatment involves factor replacement, which can lead to inhibitor development.
- Recombinant activated factor VII (FVII) is an alternative but has a short plasma half-life.
- Gene transfer presents a potential alternative for sustained haemostasis in coagulation disorders.
Purpose of the Study:
- To introduce the concept of continuous activated factor VII (FVII) expression via gene transfer for haemophilia treatment.
- To review existing safety and efficacy data for this gene therapy approach in animal models.
Main Methods:
- Review of preclinical studies involving gene transfer for activated FVII (FVII) expression.
- Analysis of safety and efficacy data from small and large animal models.
Main Results:
- Gene transfer demonstrated the potential for continuous expression of activated FVII.
- Preclinical data in animal models suggest promising safety and efficacy profiles for this approach.
Conclusions:
- Continuous expression of activated FVII through gene transfer is a novel therapeutic strategy for haemophilia.
- Further research and clinical trials are warranted to validate this approach in human patients.
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