Glucose-6-phosphate dehydrogenase is dispensable for human erythroid cell differentiation in vitro.

Kanyarat Boonpeng, Nutpakal Ketprasit, Attakorn Palasuwan, Kasem Kulkeaw, Duangdao Palasuwan

Experimental hematology 2023 May

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Glucose-6-phosphate dehydrogenase (G6PD) deficiency impairs cellular processes under oxidative stress. Individuals with severe G6PD deficiency still produce sufficient numbers of erythrocytes. Nevertheless, the G6PD independence of erythropoiesis remains questionable. This study elucidates the effects of G6PD deficiency on the generation of human erythrocytes. Peripheral blood-derived CD34-positive hematopoietic stem and progenitor cells (HSPCs) of human subjects with normal, moderate, and severe G6PD activities were cultured in two distinct phases: erythroid commitment and terminal differentiation. Regardless of G6PD deficiency, HSPCs were able to proliferate and differentiate into mature erythrocytes. There was no impairment in erythroid enucleation among the subjects with G6PD deficiency. To our knowledge, this study is the first report of effective erythropoiesis independent of G6PD deficiency. The evidence firmly indicates that the population with the G6PD variant could produce erythrocytes to an extent similar to that in healthy individuals. Copyright © 2023 ISEH -- Society for Hematology and Stem Cells. Published by Elsevier Inc. All rights reserved.

Citation

Kanyarat Boonpeng, Nutpakal Ketprasit, Attakorn Palasuwan, Kasem Kulkeaw, Duangdao Palasuwan. Glucose-6-phosphate dehydrogenase is dispensable for human erythroid cell differentiation in vitro. Experimental hematology. 2023 May;121:18-29.e2