Cell-Material Interactions in Tissue Engineering

Cell-material interactions lie at the heart of tissue engineering, dictating the success of biomaterials in regenerative applications. Cells engage with their environment through specialised receptors, notably integrins, which sense and respond to biochemical ligands and physical cues such as stiffness, topography and viscoelasticity. Materials designed to mimic the extracellular matrix (ECM) employ hydrogels, fibrous scaffolds and surface functionalisation to present adhesion motifs, growth factors and mechanical resistance that guide cell adhesion, proliferation, differentiation and migration. Dynamic reciprocity between cells and materials drives matrix remodelling and tissue maturation, while bespoke fabrication techniques—from electrospinning to self-assembling peptides—enable precise spatial control over ligand density and scaffold architecture. This convergence of materials science and cell biology underpins advances in organoid culture, wound healing, implantable constructs and bio-artificial organs, with global impact in regenerative medicine and disease modelling.

Research from Nature Portfolio

Recent studies have demonstrated a bottom-up nanofabrication approach whereby self-assembled peptide nanofilaments present integrin ligands at molecular resolution. By varying the ratio of functional peptide to inert building blocks, researchers achieved tunable ligand density that modulates cell migration: high-density assemblies stabilise integrin–actin complexes at the cell rear, altering directional persistence and offering a novel route to control motility in therapeutic contexts.

Investigations into a trimeric complex of insulin-like growth factor I, its binding protein and the ECM protein vitronectin have revealed that growth factor–ECM interactions markedly enhance melanoma cell proliferation, migration and spheroid formation in three-dimensional matrices. Disruption of the complex by peptide antagonists impairs tumour cell invasion and growth, highlighting the therapeutic potential of targeting cell-material signalling axes in cancer progression.

Research from all publishers

A synthetic hydrogel family incorporating collagen-like peptides (CLP) with and without the RGD integrin-binding motif has been shown to support primary cerebellar cell self-assembly into functional organoids. The RGD-modified hydrogels promoted neurite outgrowth, increased synaptic efficiency and rapid calcium signalling, underscoring the importance of both chemical composition and matrix mechanics in neural tissue models.

In the realm of renal tissue engineering, a modular supramolecular scaffold utilising a bisurea polymer matrix has been screened against natural basement membrane proteins. Surprisingly, simple catechol-functional additives replaced complex protein coatings to induce epithelial monolayer formation and transporter function on electrospun membranes, demonstrating that minimal synthetic modules can recapitulate key ECM functions for bio-artificial kidney applications.

Cell-Material Interactions in Tissue Engineering publication trend

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

Technical terms

Extracellular matrix (ECM): The complex network of proteins and polysaccharides surrounding cells, providing structural support and biochemical signals.

Integrin: A transmembrane receptor that mediates cell adhesion to ECM components and transduces mechanical and chemical signals.

Hydrogel: A water-swollen polymeric network mimicking tissue physical properties, used to support cell growth and differentiation.

Scaffold: A three-dimensional structure designed to guide cell attachment, proliferation and tissue formation.

References

1. Control cell migration by engineering integrin ligand assembly. Nature Communications (2022).
2. Targeting Insulin-Like Growth Factor-I and Extracellular Matrix Interactions in Melanoma Progression. Scientific Reports (2018).
3. Cerebellar Cells Self-Assemble into Functional Organoids on Synthetic, Chemically Crosslinked ECM-Mimicking Peptide Hydrogels. Biomolecules (2020).
4. Biomaterial screening of protein coatings and peptide additives: towards a simple synthetic mimic of a complex natural coating for a bio-artificial kidney. Biomaterials Science (2021).