One-step fabrication of cell sheet-laden hydrogel for accelerated wound healing

Wang，Huijuan1; Sun，Deshun3; Lin，Weiming4; Fang，Chao4; Cheng，Kui4; Pan，Zhengzhou5; Wang，Daping2; Song，Zhangfa1; Long，Xiaojun1,2

2023-10-01

10.1016/j.bioactmat.2023.06.005

Bioactive Materials   Impact Factor & Quartile

2452-199X

2452-199X

Full-thickness skin wounds are have continued to be reconstructive challenges in dermal and skin appendage regeneration, and skin substitutes are promising tools for addressing these reconstructive procedures. Herein, the one-step fabrication of a cell sheet integrated with a biomimetic hydrogel as a tissue engineered skin for skin wound healing generated in one step is introduced. Briefly, cell sheets with rich extracellular matrix, high cell density, and good cell connections were integrated with biomimetic hydrogel to fabricate gel + human skin fibroblasts (HSFs) sheets and gel + human umbilical vein endothelial cells (HUVECs) sheets in one step for assembly as a cell sheet-laden hydrogel (CSH). The designed biomimetic hydrogel formed with UV crosslinking and ionic crosslinking exhibited unique properties due to the photo-generated aldehyde groups, which were suitable for integrating into the cell sheet, and ionic crosslinking reduced the adhesive force toward the substrate. These properties allowed the gel + cell sheet film to be easily released from the substrate. The cells in the harvested cell sheet maintained excellent viability, proliferation, and definite migration abilities inside the hydrogel. Moreover, the CSH was implanted into a full-thickness skin defects to construct a required dermal matrix and cell microenvironment. The wound closure rate reached 60.00 ± 6.26% on the 2nd day, accelerating mature granulation and dermis formation with skin appendages after 14 days. This project can provide distinct guidance and strategies for the complete repair and regeneration of full-thickness skin defects, and provides a material with great potential for tissue regeneration in clinical applications.

Cell sheet-laden hydrogel Cell sheets Dermal construction Full-thickness skin wound Hydrogel

SCI

English

Others

Department of Health of Zhejiang Province[2018KY473];National Natural Science Foundation of China[81771502];National Natural Science Foundation of China[82273265];Shenzhen Fundamental Research Program[JCYJ20210324103210027];

Engineering ; Materials Science

Engineering, Biomedical ; Materials Science, Biomaterials

WOS:001037619500001

KEAI PUBLISHING LTD

2-s2.0-85162132422

Scopus

1.Department of Colorectal Surgery,Key Laboratory of Biological Treatment of Zhejiang Province,Sir Run Run Shaw Hospital,School of Medicine,Zhejiang University,Hangzhou,Zhejiang,310016,China
2.Shenzhen Second People's Hospital,First Affiliated Hospital of Shenzhen University Health Science Center,Shenzhen,518035,China
3.Southern University of Science and Technology Hospital,Intelligent Medical Innovation Center,Shenzhen,518035,China
4.School of Materials Science and Engineering,State Key Laboratory of Silicon Materials,Cyrus Tang Center for Sensor Materials and Applications,Zhejiang University,Hangzhou,310027,China
5.Department of Nuclear Medicine,The First Affiliated Hospital of Zhejiang University School of Medicine,Shenzhen,518035,China

Wang，Huijuan,Sun，Deshun,Lin，Weiming,et al. One-step fabrication of cell sheet-laden hydrogel for accelerated wound healing[J]. Bioactive Materials,2023,28:420-431.

Wang，Huijuan.,Sun，Deshun.,Lin，Weiming.,Fang，Chao.,Cheng，Kui.,...&Long，Xiaojun.(2023).One-step fabrication of cell sheet-laden hydrogel for accelerated wound healing.Bioactive Materials,28,420-431.

Wang，Huijuan,et al."One-step fabrication of cell sheet-laden hydrogel for accelerated wound healing".Bioactive Materials 28(2023):420-431.