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Cells Coordinate Growth and Proliferation

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Cell size is a significant factor impacting cellular design, function, and fitness. There exists some internal coordination by which cells double their masses before division, thus, achieving homeostasis. Coordination between cell growth and proliferation depends on the checkpoints in between cell cycle phases. Loss of coordination or failure in the checkpoint mechanism can drive the cell to uncontrolled growth and loss of cellular function. Like dividing cells that coordinate cellular growth,...

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Related Experiment Video

Updated: Jan 15, 2026

A Cell-Free Assay Using Xenopus laevis Embryo Extracts to Study Mechanisms of Nuclear Size Regulation

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Published on: August 8, 2016

Gene expression scaling with cell size: Insights across kingdoms.

Alejandro Fonseca¹, Stefanie Rosa¹

¹Department of Plant Biology, Swedish University of Agricultural Sciences, Almas allé 5, Uppsala, 756 51, Sweden.

Current Opinion in Plant Biology

|January 13, 2026

Summary

Cell size influences global gene expression, a conserved principle across organisms. Understanding how cells sense size to regulate gene expression is crucial for maintaining cellular function.

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Area of Science:

Molecular Biology
Cell Biology
Genetics

Background:

Gene expression is commonly studied individually, focusing on environmental or developmental triggers.
The impact of intrinsic factors like cell size and DNA content on global gene expression is less understood.
Cell size varies significantly and changes during the cell cycle, necessitating coordination with gene expression to maintain biomolecular concentrations.

Purpose of the Study:

To review recent advances in the molecular and cellular mechanisms of gene expression scaling with cell size.
To highlight open questions and the potential of plant systems in understanding size-dependent gene regulation.

Main Methods:

Literature review of existing research on gene expression and cell size.
Synthesis of findings across diverse organisms (bacteria, yeast, animals, plants).

Main Results:

Evidence indicates that transcriptional output scales with cell size across diverse organisms, suggesting a conserved regulatory principle.
Mechanisms for cell size sensing and subsequent gene expression modulation are not yet fully elucidated.

Conclusions:

Gene expression coordination with cell size is a fundamental biological principle.
Further research, particularly in plant systems, is needed to uncover the precise mechanisms of size-dependent gene regulation.