Combination of chemically modified SDF‐1α mRNA and small skin improves wound healing in diabetic rats with full‐thickness skin defects
Objectives Diabetes mellitus is associated with refractory wound healing, yet current therapies are insufficient to accelerate the process of healing. Recent studies have indicated chemically modified mRNA (modRNA) as a promising therapeutic intervention. The present study aimed to explore the effic...
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Published in | Cell proliferation Vol. 55; no. 12; pp. e13318 - n/a |
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Main Authors | , , , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
John Wiley & Sons, Inc
01.12.2022
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Subjects | |
Online Access | Get full text |
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Summary: | Objectives
Diabetes mellitus is associated with refractory wound healing, yet current therapies are insufficient to accelerate the process of healing. Recent studies have indicated chemically modified mRNA (modRNA) as a promising therapeutic intervention. The present study aimed to explore the efficacy of small skin engineered to express modified mRNAs encoding the stromal cell‐derived factor‐1α (SDF‐1α) facilitating wound healing in a full‐thickness skin defect rat model. This study, devised therapeutic strategies for diabetic wounds by pre‐treating small skin with SDF‐1α modRNA.
Materials and Methods
The in vitro transfection efficiency was evaluated using fluorescence microscopy and the content of SDF‐1α in the medium was determined using ELISA after the transfection of SDF‐1α into the small skin. To evaluate the effect of SDF‐1α modRNA and transplantation of the small skin cells on wound healing, an in vivo full‐thickness skin defect rat model was assessed.
Results
The results revealed that a modRNA carrying SDF‐1α provided potent wound healing in the small skin lesions reducing reduced scar thickness and greater angiogenesis (CD31) in the subcutaneous layer. The SDF‐1α cytokines were significantly secreted by the small skin after transfection in vitro.
Conclusions
This study demonstrated the benefits of employing small skin combined with SDF‐1α modRNA in enhancing wound healing in diabetic rats having full‐thickness skin defects.
An illustration of how the small skin was transfected with the SDF‐1α modRNA and the design of the in vivo experiments. |
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Bibliography: | Funding information Zhejiang Provincial Natural Science Foundation of China, Grant/Award Number: LQ13C100001; Biomedical Engineering fund of Shanghai Jiao Tong University, Grant/Award Number: YG2021GD04; National Natural Science Foundation of China, Grant/Award Number: 81401798; Science and Technology Development Foundation of Shanghai Pudong, Grant/Award Number: PKJ2020‐Y06; Shanghai Natural Science Foundation, Grant/Award Number: 20ZR1434500; Wenzhou Public Welfare Science and Technology Project, Grant/Award Number: Y20170238 Zucheng Luo, Yujie Bian, and Rui Zheng contributed equally to this study. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0960-7722 1365-2184 |
DOI: | 10.1111/cpr.13318 |