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CRISPR/Cas9 Gene Editing of Hematopoietic Stem and Progenitor Cells for Gene Therapy Applications
Published on: August 9, 2022
[Experience with stem cell collection for children with Transfusion-dependent thalassemia undergoing gene therapy]
Meiping Liu1, Yueyue Liang, Wenyan Long
1Department of Pediatrics, 923rd Hospital of the Joint Logistics Support Force of PLA, Nanning, Guangxi 530021, China. 47362636@qq.com.
Insights
Stem cell collection for gene therapy in transfusion-dependent thalassemia (TDT) children can be challenging. Enhancing mobilization and pre-collection blood transfusions are recommended for successful outcomes.
Area of Science:
- Pediatric Hematology
- Gene Therapy
- Stem Cell Transplantation
Objective:
To explore the characteristics and strategies of stem cell collection in children with Transfusion-dependent thalassemia (TDT) undergoing gene therapy.
Methods:
To summarize the challenges encountered and the countermeasures taken during stem cell collection in 13 TDT children undergoing gene therapy at the Department of Pediatrics, 923rd Hospital of the Joint Logistics Support Force of PLA between August 2020 and January 2024.
Results:
Among the 13 TDT children, one required 1 collection, nine required 2 collections, one required 3 collections, and one required 4 collections. Adequate cells were collected in 12 cases, while 1 case had failed to obtain sufficient CD34+ cells despite multiple rounds of collection. The stem cell collection process was smooth in all 13 cases, with no adverse reactions.
Conclusion:
The stem cell mobilization regimen for TDT children needs to be enhanced, and saturated blood transfusion should be performed prior to stem cell collection.
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