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Updated: Mar 9, 2026
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Combining 3D Magnetic Force Actuator and Multi-Functional Fluorescence Imaging to Study Nucleus Mechanobiology
Published on: July 5, 2022
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Mechanosensing by the nucleus: From pathways to scaling relationships
Sangkyun Cho1, Jerome Irianto1, Dennis E Discher2
1Molecular and Cell Biophysics Lab, University of Pennsylvania, Philadelphia, PA 19104.
The Journal of Cell Biology
|January 4, 2017
Summary
The nucleus senses mechanical forces from the extracellular matrix through various polymers. These signals influence nuclear structure and gene expression, impacting diverse species and diseases.
Area of Science:
- Cell Biology
- Biophysics
- Mechanobiology
Background:
- The cell nucleus interacts mechanically with the extracellular matrix via polymer networks.
- Forces are transmitted to the nuclear envelope and interior, influencing cellular processes.
Purpose of the Study:
- To review emerging mechanisms of nuclear mechanosensing.
- To analyze how mechanical signals from the extracellular matrix affect nuclear structure and function.
Main Methods:
- Literature review of nuclear mechanosensing pathways.
- Meta-analysis of public transcriptomics and proteomics data.
Main Results:
- Nuclear mechanosensing involves protein conformation changes, transcription factor shifts, chromosome reorganization, and membrane dynamics.
- Key pathways often converge on nuclear lamins, the main structural proteins.
- Mechanosensing pathways from collagen matrix to nucleus are conserved across species, tissues, and diseases.
Conclusions:
- Nuclear mechanosensing is a complex biophysical process crucial for cellular response to mechanical cues.
- These mechanisms are broadly conserved, suggesting fundamental roles in health and disease.
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