A Mouse Model of X-Linked Chronic Granulomatous Disease for the Development of CRISPR/Cas9 Gene Therapy.

Autor: Sevim-Wunderlich, Seren, Dang, Tu, Rossius, Jana, Schnütgen, Frank, Kühn, Ralf
Předmět:
Zdroj: Genes; Jun2024, Vol. 15 Issue 6, p706, 17p
Abstrakt: Chronic granulomatous disease (CGD) is an inherited immunodeficiency disease mainly caused by mutations in the X-linked CYBB gene that abrogate reactive oxygen species (ROS) production in phagocytes and microbial defense. Gene repair using the CRISPR/Cas9 system in hematopoietic stem and progenitor cells (HSPCs) is a promising technology for therapy for CGD. To support the establishment of efficient and safe gene therapies for CGD, we generated a mouse model harboring a patient-derived mutation in the CYBB gene. Our CybbC517del mouse line shows the hallmarks of CGD and provides a source for Cybb-deficient HSPCs that can be used to evaluate gene-therapy approaches in vitro and in vivo. In a setup using Cas9 RNPs and an AAV repair vector in HSPCs, we show that the mutation can be repaired in 19% of treated cells and that treatment restores ROS production by macrophages. In conclusion, our CybbC517del mouse line provides a new platform for refining and evaluating novel gene therapies and studying X-CGD pathophysiology. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index