Rescuing the cytolytic function of APDS1 patient T cells via TALEN-mediated PIK3CD gene correction.
Mol Ther Methods Clin Dev
; 31: 101133, 2023 Dec 14.
Article
em En
| MEDLINE
| ID: mdl-38152700
ABSTRACT
Gain-of-function mutations in the PIK3CD gene result in activated phosphoinositide 3-kinase δ syndrome type 1 (APDS1). This syndrome is a life-threatening combined immunodeficiency and today there are neither optimal nor long-term therapeutic solutions for APDS1 patients. Thus, new alternative treatments are highly needed. The aim of the present study is to explore one therapeutic avenue that consists of the correction of the PIK3CD gene through gene editing. Our proof-of-concept shows that TALEN-mediated gene correction of the mutated PIK3CD gene in APDS1 T cells results in normalized phospho-AKT levels in basal and activated conditions. Normalization of PI3K signaling was correlated to restored cytotoxic functions of edited CD8+ T cells. At the transcriptomic level, single-cell RNA sequencing revealed corrected signatures of CD8+ effector memory and CD8+ proliferating T cells. This proof-of-concept study paves the way for the future development of a gene therapy candidate to cure activated phosphoinositide 3-kinase δ syndrome type 1.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Mol Ther Methods Clin Dev
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
França
País de publicação:
Estados Unidos