Accelerated Wound Healing Induced by a Novel Amphibian Peptide (OA-FF10)

Author(s): Naixin Liu, Zhe Li, Buliang Meng, Wenxin Bian, Xiaojie Li, Siyuan Wang, Xiaoqing Cao, Yongli Song, Meifeng Yang, Ying Wang, Jing Tang*, Xinwang Yang*.

Journal Name: Protein & Peptide Letters

Volume 26 , Issue 4 , 2019

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Graphical Abstract:


Background: Despite the continued development of modern medicine, chronic wounds are still a critical issue in clinical treatment, placing a great physiological, psychological, and financial burden on patients. Researchers have investigated many methods to solve this problem, with bioactive peptides gaining increasing attention due to their considerable advantages and diverse functions, as well as low cost, simple storage, and easy transportation.

Methods: In this research, a novel peptide (named OA-FF10) was identified from the skin secretions of the odorous frog species Odorrana andersonii. The sequence of mature OA-FF10 was “FFTTSCRSGC”, which was produced by the post-translational processing of a 61-residue prepropeptide.

Results: Similar to most frog peptides, OA-FF10 showed an intramolecular disulfide bridge at the C-terminus. OA-FF10 demonstrated no antibacterial, antioxidant, hemolytic, or acute toxic activity, but promoted wound healing and proliferation of human keratinocytes (HaCaT) both time- and dose-dependently. Furthermore, while OA-FF10 had no effect on wound healing of Human Skin Fibroblasts (HSF), it did accelerate healing in a full-thickness skin-wound mouse model.

Conclusion: Our research revealed the strong wound-healing activity of OA-FF10 in vivo and in vitro, thus providing a new candidate for the development of novel wound-healing drugs.

Keywords: Odorrana andersonii, wound healing, skin secretions, bioactive peptide, prepropeptide, human keratinocytes.

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Year: 2019
Page: [261 - 270]
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DOI: 10.2174/0929866526666190124144027
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