Natural Product Sciences

The Korean Society of Pharmacognosy (한국생약학회)
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Ameliorative Effects of Ombuoside on Dopamine Biosynthesis in PC12 Cells

  • Received : 2017.09.01
  • Accepted : 2018.02.11
  • Published : 2018.06.30
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Abstract

This study investigated the effects of ombuoside, a flavonol glycoside, on dopamine biosynthesis in PC12 cells. Ombuoside at concentrations of 1, 5, and $10{\mu}M$ increased intracellular dopamine levels at 1 - 24 h. Ombuoside (1, 5, and $10{\mu}M$) also significantly increased the phosphorylation of tyrosine hydroxylase (TH) (Ser40) and cyclic AMP-response element binding protein (CREB) (Ser133) at 0.5 - 6 h. In addition, ombuoside (1, 5, and $10{\mu}M$) combined with L-DOPA (20, 100, and $200{\mu}M$) further increased intracellular dopamine levels for 24 h compared to L-DOPA alone. These results suggest that ombuoside regulates dopamine biosynthesis by modulating TH and CREB activation in PC12 cells.

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