Abstract
Reticular dysgenesis (RD) is a rare genetic disease caused by gene mutations in the ATP:AMP phosphotransferase, adenylate kinase 2 (AK2). Patients with RD suffer from severe combined immunodeficiency with neutrophil maturation arrest. Although hematopoietic stem cell transplantation can be a curative option, it is invasive, and complications of agranulocytosis-induced infection worsen the prognosis. Here, we report that the use of UK-5099, an inhibitor of the mitochondrial pyruvate carrier (MPC), on hemo-angiogenic progenitor cells (HAPCs) derived from AK2-deficient induced pluripotent stem cells improved neutrophil maturation. Reactive oxygen species (ROS) levels in AK2-deficient HAPCs remained unchanged throughout all experiments, implying that UK-5099 improved the phenotype without affecting ROS levels. Overall, our results suggest that the MPC is a potential therapeutic target for the treatment of neutrophil maturation defects in RD.
Published Version
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