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Article Open Access

MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring

  • Authors:
    • Liang Guo
    • Kai Xu
    • Hongbo Yan
    • Haifeng Feng
    • Tao Wang
    • Linlin Chai
    • Guozheng Xu
  • View Affiliations / Copyright

    Affiliations: Department of Plastic Surgery, Wuhan General Hospital of Guangzhou Military Command of Chinese PLA, Wuhan, Hubei 430070, P.R. China, Institute of Combined Injury, State Key Laboratory of Trauma, Burn and Combined Injury, Third Military Medical University, Chongqing 400038, P.R. China, Department of Plastic and Reconstructive Surgery, Southwestern Hospital, Third Military Medical University, Chongqing 400038, P.R. China, Department of Neurosurgery, Wuhan General Hospital of Guangzhou Military Command of Chinese PLA, Wuhan, Hubei 430070, P.R. China
    Copyright: © Guo et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1211-1221
    |
    Published online on: January 5, 2017
       https://doi.org/10.3892/mmr.2017.6104
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Abstract

Hypertrophic scars (HS) area fibroproliferative disorder of the skin, which causes aesthetic and functional impairment. However, the molecular pathogenesis of this disease remains largely unknown and currently no efficient treatment exists. MicroRNAs (miRNAs) are involved in a variety of pathophysiological processes, however the role of miRNAs in HS development remains unclear. To investigate the miRNA expression signature of HS, microarray analysis was performed and 152 miRNAs were observed to be differentially expressed in HS tissue compared with normal skin tissues. Of the miRNAs identified, miRNA‑21 (miR‑21) was significantly increased in HS tissues and hypertrophic scar fibroblasts (HSFBs) as determined by reverse transcription‑quantitative polymerase chain reaction analysis. It was also observed that, when miR‑21 in HSFBs was blocked through use of an antagomir, the phenotype of fibrotic fibroblasts in vitro was reversed, as demonstrated by growth inhibition, induction of apoptosis and suppressed expression of fibrosis‑associated genes collagen type I α 1 chain (COL1A1), COL1A2 and fibronectin. Furthermore, miR‑21 antagomir administration significantly reduced the severity of HS formation and decreased collagen deposition in a rabbit ear HS model. The total scar area and scar elevation index were calculated and were demonstrated to be significantly decreased in the treatment group compared with control rabbits. These results indicated that the miR‑21 antagomir has a therapeutic effect on HS and suggests that targeting miRNAs may be a successful and novel therapeutic strategy in the treatment of fibrotic diseases that are difficult to treat with existing methods.
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Copy and paste a formatted citation
Spandidos Publications style
Guo L, Xu K, Yan H, Feng H, Wang T, Chai L and Xu G: MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring. Mol Med Rep 15: 1211-1221, 2017.
APA
Guo, L., Xu, K., Yan, H., Feng, H., Wang, T., Chai, L., & Xu, G. (2017). MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring. Molecular Medicine Reports, 15, 1211-1221. https://doi.org/10.3892/mmr.2017.6104
MLA
Guo, L., Xu, K., Yan, H., Feng, H., Wang, T., Chai, L., Xu, G."MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring". Molecular Medicine Reports 15.3 (2017): 1211-1221.
Chicago
Guo, L., Xu, K., Yan, H., Feng, H., Wang, T., Chai, L., Xu, G."MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring". Molecular Medicine Reports 15, no. 3 (2017): 1211-1221. https://doi.org/10.3892/mmr.2017.6104
Copy and paste a formatted citation
x
Spandidos Publications style
Guo L, Xu K, Yan H, Feng H, Wang T, Chai L and Xu G: MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring. Mol Med Rep 15: 1211-1221, 2017.
APA
Guo, L., Xu, K., Yan, H., Feng, H., Wang, T., Chai, L., & Xu, G. (2017). MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring. Molecular Medicine Reports, 15, 1211-1221. https://doi.org/10.3892/mmr.2017.6104
MLA
Guo, L., Xu, K., Yan, H., Feng, H., Wang, T., Chai, L., Xu, G."MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring". Molecular Medicine Reports 15.3 (2017): 1211-1221.
Chicago
Guo, L., Xu, K., Yan, H., Feng, H., Wang, T., Chai, L., Xu, G."MicroRNA expression signature and the therapeutic effect of the microRNA‑21 antagomir in hypertrophic scarring". Molecular Medicine Reports 15, no. 3 (2017): 1211-1221. https://doi.org/10.3892/mmr.2017.6104
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