TitleCRISPR/Cas9 Gene Editing of Hematopoietic Stem and Progenitor Cells for Gene Therapy Applications.
Publication TypeJournal Article
Year of Publication2022
AuthorsVenkatesan V, Christopher ACrystal, Karuppusamy KV, Babu P, Alagiri MKumar K, Thangavel S
JournalJ Vis Exp
Date Published2022 08 09
KeywordsAnimals, CRISPR-Cas Systems, Gene Editing, Genetic Therapy, Hematopoietic Stem Cell Transplantation, Hematopoietic Stem Cells, Mice

CRISPR/Cas9 is a highly versatile and efficient gene-editing tool adopted widely to correct various genetic mutations. The feasibility of gene manipulation of hematopoietic stem and progenitor cells (HSPCs) in vitro makes HSPCs an ideal target cell for gene therapy. However, HSPCs moderately lose their engraftment and multilineage repopulation potential in ex vivo culture. In the present study, ideal culture conditions are described that improves HSPC engraftment and generate an increased number of gene-modified cells in vivo. The current report displays optimized in vitro culture conditions, including the type of culture media, unique small molecule cocktail supplementation, cytokine concentration, cell culture plates, and culture density. In addition to that, an optimized HSPC gene-editing procedure, along with the validation of the gene-editing events, are provided. For in vivo validation, the gene-edited HSPCs infusion and post-engraftment analysis in mouse recipients are displayed. The results demonstrated that the culture system increased the frequency of functional HSCs in vitro, resulting in robust engraftment of gene-edited cells in vivo.

Alternate JournalJ Vis Exp
PubMed ID36036597


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  • Mira Sherronm, Mon, 10/02/2023 - 02:16:

    CRISPR can also be used to create chimeric antigen receptor (CAR) T cells, https://dino-game.org a type of immunotherapy used to treat cancer. T cells are collected from patients and modified to express chimeric antigen receptors before being re-injected into the body.

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