ArticleFrontiers in cell and developmental biology2025
Metabolic patterns predispose human pluripotent stem cells to spatial organization of cell fate.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: During embryogenesis, specific morphogen gradients are essential for inducing tissue pattern formation. In two-dimensional (2D) human pluripotent stem cell (hPSC) culture, distinct patterns can emerge in hPSC colonies without external morphogen gradients, implying that critical intrinsic factors may induce spatial organization. However, studying the mechanism is challenging due to the lack of efficient spatial labels. Methods: We employed the mitochondrial membrane potential (MMP) probe JC-1 to stain and track cells within hPSC colonies. Using this tool, we assessed metabolic patterns under different culture coatings and manipulated pathways using mTOR and ROCK inhibitors. Results: We identified JC-1 as a durable spatial tracker, revealing a clear metabolic pattern in hPSC colonies, significantly influenced by coating materials (integrin-stimulating matrices vs. E-cadherin). This metabolic pattern correlated with spatial mesodermal cell fate under BMP4 induction. Modulation of the mTOR pathway altered the metabolic pattern and subsequent mesoderm induction. Conclusion: This study reveals that intrinsic metabolic patterns predispose hPSCs to spatial organization of cell fate and highlights JC-1 as a potent spatial marker for studying tissue patterning mechanisms.
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