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Lin-Hui L, Yuan-Yuan Z, Ming-Yu L, Xu-Dong H, Yin-Jia D, Yue Z, Yang-Hong-Hong F, Ai-Fen C, Xu-Dong Z, Zheng-Li C, Jian J. Recombinant Human Collagen Type III Improves Hypertrophic Scarring by Regulating the Ratio of Type I/III Collagen. J Burn Care Res 2024:irae040. [PMID: 38477626 DOI: 10.1093/jbcr/irae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Indexed: 03/14/2024]
Abstract
Hypertrophic scar development is a complication associated with wound healing, impacting local appearance and function. The type I/III collagen ratio affects the extent of hypertrophic scarring; a reduced ratio can ameliorate this. In this study, recombinant human collagen type III was developed. Liquid chromatography-tandem mass spectrometry was used to determine its amino acid sequence and confirm its high level of homology with natural human type III collagen. Recombinant human collagen type III displayed no cytotoxicity and did not confer skin irritation and sensitization. Immunofluorescence and western blot analyses of histidine following incubation with fibroblasts suggested cell entry of recombinant human collagen type III. Furthermore, recombinant human collagen type III promoted the synthesis of the natural type III collagen in fibroblasts, resulting in a more obvious increase of type III collagen content in fibroblasts than that of type I collagen, and then decreased the ratio of type I/III collagen. The results of 5-ethynyl-2'-deoxyuridine staining assay suggested enhanced fibroblast proliferation. Following local injection of recombinant human collagen type III, rabbit ear scarring was significantly reduced after 60 days. Vancouver Scar Scale evaluation showed that all index scores were significantly reduced. Western blotting and Picro-Sirius red staining showed that the natural type III collagen increase in scar tissue was greater than that of type I collagen, decreasing the type I/III ratio. In summary, recombinant human collagen type III can be taken up by fibroblasts and promote natural collagen synthesis-especially that of type III-thereby reducing the type I/III ratio and improving hypertrophic scarring.
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Affiliation(s)
- Li Lin-Hui
- Department of Burns, The First Affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Zha Yuan-Yuan
- Department of Burns, The First Affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Liu Ming-Yu
- 967th Hospital of the Joint Logistics Support Force of PLA, 80 Shengli Road, Xigang District, Dalian,116000, China
| | - Hong Xu-Dong
- Department of Burns and Plastic, 903rd Hospital of PLA,14 Lingyin Road, Xihu District, Hangzhou, 313000, China
| | - Ding Yin-Jia
- Department of Burns and Plastic, 903rd Hospital of PLA,14 Lingyin Road, Xihu District, Hangzhou, 313000, China
| | - Zhou Yue
- Department of Burns and Plastic, 903rd Hospital of PLA,14 Lingyin Road, Xihu District, Hangzhou, 313000, China
| | - Fei Yang-Hong-Hong
- Department of Burns and Plastic, 903rd Hospital of PLA,14 Lingyin Road, Xihu District, Hangzhou, 313000, China
| | - Chen Ai-Fen
- Department of Burns and Plastic, 903rd Hospital of PLA,14 Lingyin Road, Xihu District, Hangzhou, 313000, China
| | - Zhang Xu-Dong
- Department of Burns and Plastic, 903rd Hospital of PLA,14 Lingyin Road, Xihu District, Hangzhou, 313000, China
| | - Chen Zheng-Li
- Department of Burns, The First Affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Jin Jian
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
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