Tissue Engineering Applications for Skin Regeneration

Tissue engineering for skin regeneration combines principles of cell biology, materials science and bioengineering to develop functional substitutes for damaged or lost skin. Central to this field are bioactive scaffolds that replicate the three-dimensional architecture of the dermal extracellular matrix, providing mechanical support and guiding cell migration. By seeding these scaffolds with autologous or allogeneic keratinocytes and fibroblasts, researchers aim to reconstruct both epidermal and dermal layers. Incorporation of growth factors and cytokines within matrix materials enhances vascular ingrowth and accelerates wound closure, while bioreactor systems can precondition constructs to improve strength and integration on implantation. Advanced strategies now include organoid culture, 3D bioprinting of multilayered architectures and the design of smart biomaterials that respond to local biochemical cues. Key challenges remain rapid vascularisation of full-thickness grafts, minimising immune rejection and achieving regeneration of appendages such as hair follicles and sweat glands. Progress in stem cell differentiation, nanofibre technology and in situ delivery devices has driven significant improvements in acute wound care, chronic ulcer management and burn treatment. These advances carry global importance, offering scalable and patient-specific therapeutic options where conventional grafts are impractical or unavailable.

Research from Nature Portfolio

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Research from all publishers

Acellular nanofibrous bilayer scaffolds modified with a polydopamine network have been shown to mimic both dermal and basement membrane compartments, improving mechanical resilience and porosity. In a large-animal model, early pro-inflammatory signalling gave way to increased expression of anti-inflammatory molecules and fibroblast recruitment, suggesting that this design can promote full-thickness wound healing without the need for donor skin grafts. Separately, microneedle arrays have been developed to deliver growth factors, mesenchymal stem cells and bioactive molecules directly into the wound bed. Their micro-needle architecture overcomes necrotic barriers and biofilms, ensuring targeted release, mechanical support and directional traction that accelerates tissue repair in preclinical models. Furthermore, skin organoids grown from pluripotent stem cells now recapitulate complex epidermal and dermal interactions, including rudimentary appendage formation. These three-dimensional constructs not only serve as platforms for drug screening but have also been integrated into excisional wound sites to restore native-like skin ecology and structural integrity.

Tissue Engineering Applications for Skin Regeneration publication trend

The graph below shows the total number of articles in tissue engineering applications for skin regeneration across all publications each year (not limited to Nature Index journals).

Technical terms

Scaffold: A three-dimensional support structure, often biomimetic, that guides cell attachment, proliferation and tissue formation.

Extracellular Matrix (ECM): The network of proteins and glycosaminoglycans that provides mechanical support and biochemical signals to cells.

Keratinocyte: The primary epidermal cell type responsible for forming the protective barrier of the skin.

Fibroblast: A mesenchymal cell that synthesises matrix proteins and plays a key role in wound healing and tissue remodelling.

Organoid: A self-organising, three-dimensional cell culture that replicates aspects of organ structure and function in vitro.

Vascularisation: The process of blood vessel formation within engineered tissue, essential for nutrient delivery and graft survival.

References

1. Accelular nanofibrous bilayer scaffold intrapenetrated with polydopamine network and implemented into a full-thickness wound of a white-pig model affects inflammation and healing process. Journal of Nanobiotechnology (2023).
2. Organoids in skin wound healing. Burns & Trauma (2025).
3. Microneedles for in situ tissue regeneration. Materials Today Bio (2023).