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Cells Coordinate Growth and Proliferation

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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Updated: May 19, 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

Coordinating genome expression with cell size.

Samuel Marguerat1, Jürg Bähler

  • 1University College London, Department of Genetics, Evolution and Environment, London, WC1E 6BT, UK.

Trends in Genetics : TIG
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PubMed
Summary
This summary is machine-generated.

Cell size varies greatly, with larger cells needing more RNA and protein. This study explores how gene expression globally adjusts to cellular volume, a mechanism that remains largely unknown.

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Last Updated: May 19, 2026

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An Optogenetic Method to Control and Analyze Gene Expression Patterns in Cell-to-cell Interactions

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Area of Science:

  • Cell Biology
  • Genomics
  • Systems Biology

Background:

  • Cell size exhibits significant variability across different tissues and during the cell cycle.
  • Larger cells require proportionally higher amounts of RNA and protein to maintain biomass and function, despite constant genome content.
  • The coordination of transcriptional and translational outputs with cell size is a complex regulatory challenge.

Purpose of the Study:

  • To review current understanding of the relationship between genome regulation and cell size.
  • To highlight the biological significance of cell size-dependent gene expression.
  • To explore potential mechanisms underlying the global tuning of gene expression to cellular volume.

Main Methods:

  • Review of existing literature on cell size regulation and gene expression.
  • Analysis of systems-level data correlating transcriptional and translational outputs with cell volume.
  • Discussion of theoretical models and experimental evidence.

Main Results:

  • Transcriptional and translational outputs demonstrably scale with cell size across the genome.
  • Genome content generally remains constant irrespective of cell size.
  • The precise mechanisms for this global coordination of gene expression remain largely unelucidated.

Conclusions:

  • Understanding the link between genome regulation and cell size is crucial for comprehending fundamental cell biology.
  • Global tuning of gene expression to cellular volume is a key biological process with significant implications.
  • Further research using quantitative and systems-level approaches is needed to uncover the underlying mechanisms.