A review of the circadian regulation of stem cells: harnessing the internal body clock for enhanced regenerative therapies.

Abstract

Circadian rhythms are endogenous, transcription-translation feedback loops that align cellular activities with the 24-h light-dark cycle. Stem-cell populations across tissues exhibit circadian oscillations that influence their self-renewal, proliferation, and differentiation. Key developmental pathways (Wnt/β-catenin, Notch, and Hedgehog) are increasingly recognized as both regulators and targets of circadian machinery.

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