Identification of Arenin, a Novel Kunitz-Like Polypeptide from the Skin Secretions of Dryophytes arenicolor

Autor: Jesús Hernández-Pérez, Aida Serra, Siu Kwan Sze, Patricia L. Conway, Jørgen Schlundt, Jorge Benavides
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: International Journal of Molecular Sciences, Vol 19, Iss 11, p 3644 (2018)
Druh dokumentu: article
ISSN: 1422-0067
DOI: 10.3390/ijms19113644
Popis: Amphibian skin secretions are enriched with complex cocktails of bioactive molecules such as proteins, peptides, biogenic amines, alkaloids guanidine derivatives, steroids and other minor components spanning a wide spectrum of pharmacological actions exploited for centuries in folk medicine. This study presents evidence on the protein profile of the skin secretions of the canyon tree frog, Dryophytes arenicolor. At the same time, it presents the reverse-phase liquid chromatography isolation, mass spectrometry characterization and identification at mRNA level of a novel 58 amino acids Kunitz-like polypeptide from the skin secretions of Dryophytes arenicolor, arenin. Cell viability assays performed on HDFa, CaCo2 and MCF7 cells cultured with different concentrations of arenin showed a discrete effect at low concentrations (2, 4, 8 and 16 µg/mL) suggesting a multi-target interaction in a hormetic-like dose-response. Further work is required to investigate the mechanisms underlying the variable effect on cell viability produced by different concentrations of arenin.
Databáze: Directory of Open Access Journals
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