Mechanotransduction in Cellular Behavior and Extracellular Matrix Dynamics

Mechanotransduction describes the pathways by which cells detect and respond to mechanical cues in their surroundings, translating forces and deformations into intracellular biochemical signals. At the cell–matrix interface, transmembrane receptors such as integrins link the extracellular matrix (ECM) to cytoskeletal networks, forming focal adhesions that serve both as mechanical anchors and signal hubs. Tension generated by the actomyosin cytoskeleton modulates adhesion assembly, cytoskeletal organisation and nuclear shape, thereby influencing key cellular behaviours including migration, proliferation and differentiation. Conversely, cells continually remodel the ECM through secretion of matrix proteins and matrix-degrading enzymes, adjusting stiffness and architecture in a feedback loop that underlies tissue development, repair and homeostasis. Perturbations of this dynamic interplay contribute to pathological processes ranging from fibrosis to cancer invasion, and have inspired biomaterial design for regenerative medicine and mechanotherapy.

Research from Nature Portfolio

Recent studies have established platforms for precisely tuning matrix biophysical properties and dissecting their impact on cell fate. A venom-based system for fibrin assembly enables independent control of fibre thickness and network stiffness, revealing that fine fibrin architecture promotes fibroblast survival and differentiation, while coarser networks induce cell loss and impair growth-factor sensitivity. These findings offer a route to optimise wound-sealant hydrogels and drive tissue regeneration. In parallel, investigations into mechanosensitive microRNAs have identified specific small RNAs that bias mesenchymal stem-cell lineage commitment in soft hydrogels by converging on mTOR signalling. Modulation of these miRNAs enhances osteogenesis in injectable scaffolds, illustrating a novel strategy to harness mechanical memory and improve stem-cell-based therapies.

Mechanotransduction in Cellular Behavior and Extracellular Matrix Dynamics publication trend

The graph below shows the total number of articles in mechanotransduction in cellular behavior and extracellular matrix dynamics across all publications each year (not limited to Nature Index journals).

Technical terms

Mechanotransduction: The process by which cells convert mechanical stimuli into biochemical signals that regulate function and fate.

Extracellular matrix (ECM): A dynamic network of proteins and polysaccharides that surrounds cells, providing structural support and mechanical cues.

Focal adhesion: Multi-protein complexes linking integrins to the actin cytoskeleton, serving as sites of force transmission and signal initiation.

Durotaxis: Directed cell migration guided by gradients in substrate stiffness, enabling cells to navigate heterogeneous mechanical landscapes.

Cellular traction forces: Forces exerted by cells on the ECM through cytoskeletal contractility and adhesion complexes, driving migration and matrix remodelling.

References

1. In Situ Fabrication of Constraints for Multicellular Micro‐Spheroids Using Two‐Photon Lithography. Advanced Functional Materials (2023).
2. Snake venom-defined fibrin architecture dictates fibroblast survival and differentiation. Nature Communications (2023).
3. A Hierarchical Mechanotransduction System: From Macro to Micro. Advanced Science (2023).
4. Cellular Mechanotransduction: From Tension to Function. Frontiers in Physiology (2018).
5. Remodeling and homeostasis of the extracellular matrix: implications for fibrotic diseases and cancer. Disease Models & Mechanisms (2011).
6. Mechanically-sensitive miRNAs bias human mesenchymal stem cell fate via mTOR signalling. Nature Communications (2018).