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Intestinal absorption and mechanism of 23-hydroxybetulinic acid using Caco-2 monolayer model

  • Min Yang
  • , Guang Ji Wang
  • , Yu Ping Xu
  • , Dong Hui Pan
  • , Xiao Lan Wu
  • , Chen Rong Huang
  • , Wen Cai Ye
  • Jiangsu Institute of Nuclear Medicine
  • China Pharmaceutical University

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

OBJECTIVE: To investigate the intestinal absorption and the mechanism of 23-hydroxybetulinic acid using Caco-2 monolayer model. METHODS: The safety concentration of 23-hydroxybetulinic acid in Caco-2 cell was first selected by using MTT method. Then the Caco-2 cell monolayer model was used to investigate the bi-directional transport of 23-hydroxybetulinic acid and the effect of time and drug concentration on the 23-hydroxybetulinic acid absorption. Drug concentration was measured by radioisotope tracing method and the apparent permeability coefficient (Papp) were calculated. RESULTS: In the Caco-2 cell model, the A→B Papp of 23-hydroxybetulinic acid was equal to the B→A Papp and the Papp kept almost constant with the selected concentration investigated. CONCLUSION: The 23-hydroxybetulinic acid absorption in Caco-2 cell model is a passive and transcellular transport. And the absorption of 23-hydroxybetulinic acid in the intestines is quite good.

Original languageEnglish
Pages (from-to)349-352
Number of pages4
JournalChinese Pharmaceutical Journal
Volume43
Issue number5
StatePublished - Mar 2008
Externally publishedYes

Keywords

  • 23-hydroxybetulinic acid
  • Caco-2 cell model
  • Passive transport

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