title: Fucoidan inhibits UVB-induced MMP-1 expression in human skin fibroblasts.
abstract: Ultraviolet (UV)B irradiation induces the production of matrix metalloproteinases (MMPs) by activating cellular signaling transduction pathways, which are responsible for the degradation or synthesis inhibition of collagenous extracellular matrix in connective tissues, causing skin photoaging. Using the human skin fibroblast (HS68) cell line in the present study, we investigated the inhibitory effects of fucoidan on MMP-1 expression by various in vitro experiments and elucidated the pathways of inhibition. Pretreatment with fucoidan inhibited UVB-induced MMP-1 expression in a dose-dependent manner. Extracellular signal regulated kinase (ERK) activation was markedly inhibited by treatment with fucoidan, though JNK activation was very slightly affected by fucoidan. We also found that fucoidan pretreatment significantly reduced MMP-1 mRNA expression in comparison with UVB irradiation only. In conclusion, our results demonstrate that fucoidan can mainly inhibit UVB-induced MMP-1 expression by inhibiting the ERK pathways. Therefore, fucoidan might be used as a potential agent for the prevention and treatment of skin photoaging.
authors.affiliation: Institute of Natural Products for Health Promotion and Department of Preventive Medicine, College of Medicine, Kosin University, Busan, Korea.
authors.forename: Hee Jung
authors.initials: HJ
authors.lastname: Moon
authors.forename: Soon Rye
authors.initials: SR
authors.lastname: Lee
authors.forename: Sun Nyu
authors.initials: SN
authors.lastname: Shim
authors.forename: Seok Hoon
authors.initials: SH
authors.lastname: Jeong
authors.forename: Valentine A
authors.initials: VA
authors.lastname: Stonik
authors.forename: Valery A
authors.initials: VA
authors.lastname: Rasskazov
authors.forename: Tatyana
authors.initials: T
authors.lastname: Zvyagintseva
authors.forename: Yong Hwan
authors.initials: YH
authors.lastname: Lee
mesh_terms: D015153:Blotting, Western; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D048049:Extracellular Signal-Regulated MAP Kinases / Q000096:biosynthesis; D005347:Fibroblasts / Q000187:drug effects / Q000201:enzymology* / Q000528:radiation effects; D006801:Humans; D048031:JNK Mitogen-Activated Protein Kinases / Q000096:biosynthesis; D020781:Matrix Metalloproteinase 1 / Q000096:biosynthesis* / Q000528:radiation effects*; D011134:Polysaccharides / Q000494:pharmacology*; D012333:RNA, Messenger / Q000096:biosynthesis / Q000302:isolation & purification; D011837:Radiation-Protective Agents / Q000494:pharmacology*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012867:Skin / Q000166:cytology / Q000201:enzymology* / Q000528:radiation effects; D013778:Tetrazolium Salts; D013844:Thiazoles; D014466:Ultraviolet Rays
chemical_list: D011134:Polysaccharides; D012333:RNA, Messenger; D011837:Radiation-Protective Agents; D013778:Tetrazolium Salts; D013844:Thiazoles; C007789:fucoidan; D048049:Extracellular Signal-Regulated MAP Kinases; D048031:JNK Mitogen-Activated Protein Kinases; D020781:Matrix Metalloproteinase 1; C022616:thiazolyl blue