A synthetic 7,8-dihydroxyflavone derivative promotes neurogenesis and exhibits potent antidepressant effect.

Academic Article

Abstract

  • 7,8-Dihydroxyflavone is a recently identified small molecular tropomyosin-receptor-kinase B (TrkB) agonist. Our preliminary structural-activity relationship (SAR) study showed that the 7,8-dihydroxy groups are essential for the agonistic effect. To improve the lead compound's agonistic activity, we have conducted an extensive SAR study and synthesized numerous derivatives. We have successfully identified 4'-dimethylamino-7,8-dihydroxyflavone that displays higher TrkB agonistic activity than that of the lead. This novel compound also exhibits a more robust and longer TrkB activation effect in animals. Consequently, this new compound reveals more potent antiapoptotic activity. Interestingly, chronic oral administration of 4'-dimethylamino-7,8-dihydroxyflavone and its lead strongly promotes neurogenesis in dentate gyrus and demonstrates marked antidepressant effects. Hence, our data support that the synthetic 4'-dimethylamino-7,8-dihydroxyflavone and its lead both are orally bioavailable TrkB agonists and possess potent antidepressant effects.
  • Authors

    Published In

    Keywords

  • Animals, Antidepressive Agents, Apoptosis, Flavones, Magnetic Resonance Spectroscopy, Male, Mice, Mice, Inbred C57BL, Neurogenesis, Spectrometry, Mass, Electrospray Ionization, Structure-Activity Relationship
  • Digital Object Identifier (doi)

    Pubmed Id

  • 19179858
  • Author List

  • Liu X; Chan C-B; Jang S-W; Pradoldej S; Huang J; He K; Phun LH; France S; Xiao G; Jia Y
  • Start Page

  • 8274
  • End Page

  • 8286
  • Volume

  • 53
  • Issue

  • 23