In clinical trials, the healing of wounds remains a substantial physiological and financial incumbrance on patients. Therefore, the development of new drugs that can accelerate wound healing is vital. Based on genomic methods, we identified a new peptide (RL-RL10) with the amino acid sequence 'RLFKCWKKDS' from the skin of an amphibian frog species (). RL-RL10 promoted wound healing of human keratinocytes (HaCaT) in a concentration-dependent manner. RL-RL10 also had an effect on the migration and proliferation of HaCaT cells and promoted healing of a full-thickness wound in mice in a dose-dependent manner. In conclusion, we discovered RL-RL10 that promoted healing activity of cellular and animal wounds, thus providing a new peptide template for the development of novel wound-repairing drugs.
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http://dx.doi.org/10.1080/14786419.2019.1710702 | DOI Listing |
Toxicon
January 2025
Applied Immunology and Morphology Research Centre, NuPMIA, Morphology Area, Faculty of Medicine, University of Brasília, UnB, Brasília, Distrito Federal, Brazil. Electronic address:
Amphibian skin is a rich source of molecules with biotechnological potential, including the tryptophyllin family of peptides. Here, we report the identification and characterization of two tryptophyllin peptides, FPPEWISR and FPWLLS-NH, from the skin of the Central Dwarf Frog, Physalaemus centralis. These peptides were identified through cDNA cloning and sequence comparison.
View Article and Find Full Text PDFProtein Pept Lett
January 2025
Department of Biology, Faculty of Science, Ege University, Izmir, Turkey.
Like other vertebrates, amphibians possess innate and adaptive immune systems. At the center of the adaptive immune system is the Major Histocompatibility Complex. The important molecules of innate immunity are antimicrobial peptides (AMPs).
View Article and Find Full Text PDFLife Sci
January 2025
Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen 518036, China. Electronic address:
Pelophylax nigromaculata, common traditional Chinese medicinal material used for several hundreds of years, is one of the most widely distributed amphibians in China. In this study, a novel Ranatuerin-2 family antimicrobial peptide, Rana-2PN, was identified and characterized from its skin, and its structural characteristics and functional activities were studied extensively. First, Rana-2PN exhibited a broad spectrum of antimicrobial activity, displaying minimum inhibitory concentration (MIC) values ranging from 12.
View Article and Find Full Text PDFAntibiotics (Basel)
November 2024
Department of Biology, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi-shi 274-8510, Chiba, Japan.
Amphibian skin is a valuable source of host defense peptides (HDPs). This study aimed to identify HDPs with novel amino acid sequences from the skin of and analyze their functions. cDNAs encoding HDP precursors were cloned and sequenced using RT-PCR and 3'-RACE.
View Article and Find Full Text PDFMicrobiol Spectr
December 2024
College of Ecology, Lishui University, Lishui, Zhejiang, China.
Unlabelled: and are recognized as significant opportunistic pathogens affecting aquatic animals and humans. However, their infections in amphibians are poorly documented, and their pathogenicity to the Chinese spiny frog () remains unexplored. This study investigated an outbreak of putrid-skin disease among on a farm in Lishui City, Zhejiang Province, China.
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