Issue 10, 2019

The topography of fibrous scaffolds modulates the paracrine function of Ad-MSCs in the regeneration of skin tissues

Abstract

Injuries to the skin are common in daily life, and a certain type or size of defect is not easily restored using conventional dressings or naturally. The repair of these defects requires restoration of function in regenerated tissues. In this study, a tissue engineered skin was designed and fabricated using a bio-3D printing system. Polycaprolactone and bacterial cellulose comprised the scaffold, due to their excellent biocompatibility and multifunctionality. Adipose-derived mesenchymal stem cells (Ad-MSCs) were seeded onto the scaffold to functionalize it as an artificial skin. The finished artificial skin had mechanical properties similar to that of natural skin, and its fibrous structure providing a unique micro-environment that could regulate the paracrine function of the Ad-MSCs. This effect could be greatly increased by changes in the characteristics of the biomaterials. The artificial skin exhibited high biological activity, strong induction of cell recruitment, migration, growth and up-regulation of gene expression of relevant factors, resulting in excellent wound healing characteristics. This study clarified novel design aspects of cell-material interactions in which the topographical characteristics of materials can be further developed to establish cell signaling or communication networks that take advantage of the paracrine actions of Ad-MSCs to promote specific tissue regeneration or repair characteristics.

Graphical abstract: The topography of fibrous scaffolds modulates the paracrine function of Ad-MSCs in the regeneration of skin tissues

Supplementary files

Article information

Article type
Paper
Submitted
17 Jun 2019
Accepted
02 Aug 2019
First published
06 Aug 2019

Biomater. Sci., 2019,7, 4248-4259

The topography of fibrous scaffolds modulates the paracrine function of Ad-MSCs in the regeneration of skin tissues

R. Huang, J. Wang, H. Chen, X. Shi, X. Wang, Y. Zhu and Z. Tan, Biomater. Sci., 2019, 7, 4248 DOI: 10.1039/C9BM00939F

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