Key result
Differentiated 3T3-L1 adipocytes exhibit greatly accelerated volume restoration responses compared to pre-adipocytes, and caveolae integrity is not required for volume regulation in pre-adipocytes.
Population
3T3-L1 pre-adipocytes and adipocytes with varying caveolae levels (high, intermediate, and low)
Comparison
Osmotic cell swelling and shrinkage, insulin… vs Pre-adipocytes vs differentiated adipocytes…
Design
Preclinical
Authors
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May link adipocyte volume regulation to insulin resistance; leaves open translation to cardiovascular outcomes.
Differentiated adipocytes show accelerated cell volume regulation compared to pre-adipocytes, independent of caveolae integrity, which may be relevant for understanding insulin resistance.
Eduardsen et al. (2011) studied Cell volume regulation and signaling in adipocytes. Osmotic cell swelling and shrinkage, cholesterol depletion, insulin exposure vs. Pre-adipocytes vs differentiated adipocytes was evaluated on Cell volume restoration (RVD and RVI) and signaling activation. Differentiated 3T3-L1 adipocytes exhibit greatly accelerated volume restoration responses compared to pre-adipocytes, and caveolae integrity is not required for volume regulation in pre-adipocytes.
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