Open Access Green: Postprint online available 06/2025
as soon as is submitted to ZB.
Eukaryotic cell size regulation and its implications for cellular function and dysfunction.
Physiol. Rev. 104, 1679-1717 (2024)
Depending on cell type, environmental inputs, and disease, the cells in the human body can have widely different sizes. In recent years, it became clear that cell size is a major regulator of cell function. However, we are only beginning to understand how optimization of cell function determines a given cell's optimal size. Here, we review currently known size control strategies of eukaryotic cells, and the intricate link of cell size to intracellular biomolecular scaling, organelle homeostasis and cell cycle progression. We detail the cell size dependent regulation of early development and the impact of cell size on cell differentiation. Given the importance of cell size for normal cellular physiology, cell size control must account for changing environmental conditions. We describe how cells sense environmental stimuli, such as nutrient availability, and accordingly adapt their size by regulating cell growth and cell cycle progression. Moreover, we discuss the correlation of pathological states with misregulation of cell size, and how for a long time, this was considered a downstream consequence of cellular dysfunction. We review newer studies that reveal a reversed causality, with misregulated cell size leading to pathophysiological phenotypes such as senescence and aging. In summary, we highlight important roles of cell size in cellular function and dysfunction, which could have major implications for both diagnostics and treatment in the clinic.
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Publication type
Article: Journal article
Document type
Review
Keywords
Cell Cycle ; Cell Growth ; Cell Size ; Organelle Homeostasis ; Protein Homeostasis
ISSN (print) / ISBN
0031-9333
e-ISSN
1522-1210
Journal
Physiological Reviews
Quellenangaben
Volume: 104,
Issue: 4,
Pages: 1679-1717
Publisher
American Physiological Society
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Functional Epigenetics (IFE)
Grants
Human Frontier Science Program (HFSP)