Endothelial Cell Mechanobiology in Tissue Engineering

Endothelial cells form the inner lining of blood vessels and respond dynamically to mechanical stimuli, a process central to vascular health and regeneration. In tissue engineering, recreating key biophysical cues such as fluid shear stress, substrate stiffness and surface topography is essential to guide endothelial alignment, barrier function and gene expression. Advances in scaffold design and bioreactor systems now allow simultaneous control of flow‐derived forces and substrate‐derived features, enabling the formation of physiologically relevant vascular constructs. By integrating mechanical and topographical signals, engineered tissues can emulate perfusable microvessels for drug testing, disease modelling and implantable grafts, addressing global demands in cardiovascular medicine and regenerative therapies.

Research from Nature Portfolio

Recent studies have elucidated how endothelial cells interpret combined mechanical cues. One approach integrates substrate‐derived factors (surface topography, curvature, stiffness) with flow‐derived stresses (shear, pressure, tension) in vitro, revealing that cells assess multiple inputs through coordinated cytoskeletal remodelling and focal adhesion dynamics. These insights have informed the design of advanced culture platforms capable of presenting orthogonal mechanical stimuli to dissect mechanotransduction pathways. Another investigation employed micropatterned hydrogels functionalised with adhesion peptides to examine brain microvascular endothelial alignment under varying glucose conditions. This work demonstrated that physical confinement via patterned lines induces elongation and orientation, while metabolic stress modulates cytoskeletal organisation, offering a physiologically relevant model for diabetic vasculature studies.

Endothelial Cell Mechanobiology in Tissue Engineering publication trend

The graph below shows the total number of articles in endothelial cell mechanobiology in tissue engineering across all publications each year (not limited to Nature Index journals).

Technical terms

Shear stress: Frictional force per unit area exerted by fluid flow across the endothelial surface.

Surface topography: Micro- or nanoscale physical features on a substrate that influence cell orientation and function.

Contact guidance: Phenomenon by which cells align and migrate along anisotropic surface cues or patterns.

Hydrogel: Hydrated polymer network that mimics the extracellular matrix, permitting controlled presentation of mechanical and biochemical signals.

Bioreactor: Engineered system providing defined mechanical (flow, stretch) and biochemical environments for long-term cell culture and tissue maturation.

Endothelialisation: Process by which endothelial cells adhere to and form a continuous monolayer on a biomaterial surface.

References

1. Stable, Conductive, Adhesive Polymer Patterning Inside a Microfluidic Chamber for Endothelial Cell Alignment. Advanced Materials Technologies (2024).
2. Distinct Contact Guidance Mechanisms in Single Endothelial Cells and in Monolayers. Advanced Materials Interfaces (2023).
3. Integration of substrate- and flow-derived stresses in endothelial cell mechanobiology. Communications Biology (2021).
4. Brain microvasculature endothelial cell orientation on micropatterned hydrogels is affected by glucose level variations. Scientific Reports (2021).