Melanin biosynthesis inhibitors from wood of artocarpus heterophyllus: The effect of isoprenoid substituent of flavone with 4-substituted resorcinol moiety at B Ring

Enos T. Arung, Kuniyoshi Shimizu, Hiroyuki Tanaka, Ryuichiro Kondo

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

In our efforts to find new whitening agent from natural resources, we focused on wood of Artocarpus heterophyllus which shows anti-melanogenesis activity. By activity-guided fractionation of A. heterophyllus wood extract, norartocarpetin (1) and artocarpesin (2) were isolated. These compounds have 4-substituted resorcinol moiety in B ring, which is an important substructure for revealing the tyrosinase inhibitory activity. Also, the effect of albanin A (3) which has 4-substituted resorcinol moiety at B ring with prenyl substituent at C-3 position, was examined for comparison. The IC50 values of mushroom tyrosinase inhibitory activity of norartocarpetin (1), artocarpesin (2) and albanin A (3) were 1.7, 8.5 and 463 μM, respectively. In melanin formation inhibition on B16 melanoma cells, the IC50 of these compounds (1-3) were 209.1, 45.1 and 40.1 μM, respectively. The roles of each substructure of flavones having 4-substituted resorcinol moiety with or without prenyl substituent on tyrosinase and melanin biosynthesis in B16 melanoma cells were discussed.

Original languageEnglish
Pages (from-to)602-605
Number of pages4
JournalLetters in Drug Design and Discovery
Volume7
Issue number8
DOIs
Publication statusPublished - Oct 29 2010

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery

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