The regulation of adipocyte growth in white adipose tissue.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanistic literature without systematic search methodology or primary clinical data.
PubMed 36483678 · doi:10.3389/fcell.2022.1003219
What was done
This narrative review summarizes literature on the cellular and functional remodeling of hypertrophic adipocytes in white adipose tissue, focusing on cytoskeletal adaptations, lipid droplet and plasma membrane expansion, and growth-related signaling pathways.
What was found
The abstract provides no specific empirical numbers or statistical metrics. It describes qualitatively that adipocytes can expand up to a thousand-fold in volume, requiring increased production of amino acids, functional lipids, and nucleotides. Continued enlargement disrupts cellular growth homeostasis and compromises response to nutritional stimuli, promoting metabolic dysfunction.
Why it matters
Understanding the cellular mechanisms and limits of adipocyte hypertrophy clarifies how adipose tissue shifts from adaptive lipid storage to pathological dysfunction in metabolic disease.
Limits
As a narrative review, this work does not report systematic search methods, quantitative synthesis, or original clinical or experimental data.
Cited by
- supports Adipocytes can expand up to 20 times their original volume.