RRC ID 39014
Author Shoji T, Kobori M, Shinmoto H, Tanabe M, Tsushida T.
Title Progressive effects of phloridzin on melanogenesis in B16 mouse melanoma cells.
Journal Biosci Biotechnol Biochem
Abstract When we studied the effects of polyphenols from apple fruits on melanogenesis in B16 mouse melanoma cell lines, phloridzin had dose-dependent progressive effects on melanogenesis between 10 and 500 micrograms/ml without inhibiting cell growth. At a concentration of 500 micrograms/ml, phloridzin increased the melanin content in the cells to 181% of that in control cells. In contrast, phloretin, the aglycon of phloridzin, did not activate melanogenesis in the cells and was cytotoxic at a concentration of 5 micrograms/ml. Phloridzin increased the activity of tyrosinase to 223% of that in control cells. Furthermore, phloridzin inhibited the activity of protein kinase C (PKC), which is recognized to regulate tyrosinase activity. The inhibition of PKC activity continued for 120 min from the addition of phloridzin. Therefore, we estimated that the activation of melanogenesis by phloridzin resulted from the increase of tyrosinase activity caused by the inhibition of PKC activity.
Volume 61(12)
Pages 1963-7
Published 1997-12-1
DOI 10.1271/bbb.61.1963
PMID 9438975
MeSH Animals Caffeic Acids / pharmacology Cell Division / drug effects Dose-Response Relationship, Drug Melanins / biosynthesis* Melanoma, Experimental / metabolism* Mice Monophenol Monooxygenase / metabolism Phloretin / pharmacology Phlorhizin / pharmacology* Protein Kinase C / antagonists & inhibitors* Tumor Cells, Cultured / drug effects
IF 1.516
Times Cited 14
WOS Category CHEMISTRY, APPLIED FOOD SCIENCE & TECHNOLOGY BIOTECHNOLOGY & APPLIED MICROBIOLOGY BIOCHEMISTRY & MOLECULAR BIOLOGY
Resource
Human and Animal Cells B16 melanoma 4A5(RCB0557)