Cellular Behavior and Mechanotransduction in Engineered Environments

Cells sense and respond to mechanical and geometric cues in their surroundings through mechanotransduction, a process that translates forces and deformations into biochemical signals. In engineered settings, substrates can be customised in stiffness, surface topography and curvature to regulate migration, proliferation, cytoskeletal organisation and gene expression. Micro- and nano-scale features govern focal adhesion dynamics, actomyosin contractility and nuclear deformation, collectively steering stem cell fate decisions, tissue patterning and regenerative outcomes. Dynamic materials such as photoresponsive hydrogels reveal how temporal modulation of geometry elicits rapid cellular adaptation and enduring epigenetic changes. These insights inform the rational design of biomaterials and scaffolds for implants, organ-on-chip systems and regenerative therapies. Computational modelling coupled with high-resolution imaging has illuminated how multicellular assemblies interpret curvature gradients and stiffness landscapes to form organised tissues. Integrating mechanical cues with biochemical signals continues to advance our understanding of cell–material interactions and supports the creation of tailored microenvironments that mimic physiological and pathological states for both therapeutic and research applications.

Research from Nature Portfolio

Recent studies have demonstrated that substrates engineered with mathematically defined curvature gradients can direct the collective organisation of pre-osteoblastic cells. Cells preferentially colonise concave regions before spanning less favourable convex areas, a process regulated by cellular contractility and extracellular matrix deposition that may be exploited in bone tissue engineering. A foundational investigation of curvotaxis has further shown that adherent cells on sinusoidal surfaces avoid convex ridges and migrate into concave valleys under the guidance of nucleus–cytoskeleton feedback. This mechanism alters focal adhesion distribution and downstream gene expression, establishing cell-scale curvature as a fundamental physical cue in tissue formation and regenerative construct design.

Cellular Behavior and Mechanotransduction in Engineered Environments publication trend

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

Technical terms

Mechanotransduction: The process by which cells convert mechanical stimuli into intracellular biochemical signals.

Focal adhesion: Multiprotein complexes that link the actin cytoskeleton to extracellular matrix and transmit mechanical force.

Extracellular matrix: A network of proteins and polysaccharides that provides structural support and biochemical cues to cells.

Curvature: A measure of bending of a surface, defined by principal curvatures that influence cell morphology and migration.

Substrate topography: The three-dimensional surface features at micro- or nano-scale that guide cell attachment and mechanosensitive responses.

References

1. Curvature in Biological Systems: Its Quantification, Emergence, and Implications across the Scales. Advanced Materials (2023).
2. Emergent collective organization of bone cells in complex curvature fields. Nature Communications (2023).
3. Shape‐Morphing Photoresponsive Hydrogels Reveal Dynamic Topographical Conditioning of Fibroblasts. Advanced Science (2023).
4. Plasma membrane nanodeformations promote actin polymerization through CIP4/CDC42 recruitment and regulate type II IFN signaling. Science Advances (2023).
5. Curvotaxis directs cell migration through cell-scale curvature landscapes. Nature Communications (2018).