ArticleBiophysical journal2026
Mitochondrial position responds to glucose stimulation in a model of the pancreatic beta cell.
Article in Biophysical journal, 2026. 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
The compartmentalization of eukaryotic cells into membrane-bound organelles with specific subcellular positioning enables precise spatial and temporal control of cellular functions. Although functionally significant mitochondrial localization has been demonstrated in cells such as neurons, it remains unclear how general these cell principles are. Here, we examine the spatial organization of mitochondria within MIN6 pancreatic beta cells under variable glucose conditions. We observe glucose-dependent redistributions of mitochondria, favoring peripheral localization at elevated glucose levels. Our results, formalized into a stochastic model of mitochondrial trafficking, suggest that active mitochondrial transport along microtubules and PKA signaling activity, but not ATP synthesis, are critical regulators of this redistribution. These results suggest that environmentally responsive mitochondrial subcellular positioning may represent a general regulatory mechanism in even nonpolarized cell types.
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