TY - JOUR
T1 - A strain-programmed patch for the healing of diabetic wounds
AU - Theocharidis, Georgios
AU - Yuk, Hyunwoo
AU - Roh, Heejung
AU - Wang, Liu
AU - Mezghani, Ikram
AU - Wu, Jingjing
AU - Kafanas, Antonios
AU - Contreras, Mauricio
AU - Sumpio, Brandon
AU - Li, Zhuqing
AU - Wang, Enya
AU - Chen, Lihong
AU - Guo, Chuan Fei
AU - Jayaswal, Navin
AU - Katopodi, Xanthi-Leda
AU - Kalavros, Nikolaos
AU - Nabzdyk, Christoph S.
AU - Vlachos, Ioannis S.
AU - Veves, Aristidis
AU - Zhao, Xuanhe
PY - 2022/10
Y1 - 2022/10
N2 - Diabetic foot ulcers and other chronic wounds with impaired healing can be treated with bioengineered skin or with growth factors. However, most patients do not benefit from these treatments. Here we report the development and preclinical therapeutic performance of a strain-programmed patch that rapidly and robustly adheres to diabetic wounds, and promotes wound closure and re-epithelialization. The patch consists of a dried adhesive layer of crosslinked polymer networks bound to a pre-stretched hydrophilic elastomer backing, and implements a hydration-based shape-memory mechanism to mechanically contract diabetic wounds in a programmable manner on the basis of analytical and finite-element modelling. In mouse and human skin, and in mini-pigs and humanized mice, the patch enhanced the healing of diabetic wounds by promoting faster re-epithelialization and angiogenesis, and the enrichment of fibroblast populations with a pro-regenerative phenotype. Strain-programmed patches might also be effective for the treatment of other forms of acute and chronic wounds. © The Author(s), under exclusive licence to Springer Nature Limited 2022.
AB - Diabetic foot ulcers and other chronic wounds with impaired healing can be treated with bioengineered skin or with growth factors. However, most patients do not benefit from these treatments. Here we report the development and preclinical therapeutic performance of a strain-programmed patch that rapidly and robustly adheres to diabetic wounds, and promotes wound closure and re-epithelialization. The patch consists of a dried adhesive layer of crosslinked polymer networks bound to a pre-stretched hydrophilic elastomer backing, and implements a hydration-based shape-memory mechanism to mechanically contract diabetic wounds in a programmable manner on the basis of analytical and finite-element modelling. In mouse and human skin, and in mini-pigs and humanized mice, the patch enhanced the healing of diabetic wounds by promoting faster re-epithelialization and angiogenesis, and the enrichment of fibroblast populations with a pro-regenerative phenotype. Strain-programmed patches might also be effective for the treatment of other forms of acute and chronic wounds. © The Author(s), under exclusive licence to Springer Nature Limited 2022.
UR - https://www.scopus.com/pages/publications/85133461151
UR - https://www.scopus.com/pages/publications/85133461151#tab=impact
U2 - 10.1038/s41551-022-00905-2
DO - 10.1038/s41551-022-00905-2
M3 - RGC 21 - Publication in refereed journal
C2 - 35788686
SN - 2157-846X
VL - 6
SP - 1118
EP - 1133
JO - Nature Biomedical Engineering
JF - Nature Biomedical Engineering
IS - 10
ER -