Glycogen shepherd guides the hidden trail of pentose phosphate pathway.

Wang, Lin; Ma, Kaili; Zhang, Lianjun; Ho, Ping-Chih · Cell Metab · 2025

basic_science · Level V

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Abstract

In a recent Molecular Cell study,<sup>1</sup> Zhou et al. elucidated how glycogenolysis-derived glucose-1-phosphate mediates source-specific routing of glucose-6-phosphate into the pentose phosphate pathway through allosteric activation of glucose-6-phosphate dehydrogenase and liquid-liquid phase separation-mediated metabolic compartments. This compartmentalized distribution enables efficient reduced nicotinamide adenine dinucleotide phosphate (NADPH) generation from glycogenolytic flux, promoting Tm cell persistence by maintaining redox homeostasis.

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