Skip to main navigation Skip to search Skip to main content

Inhibitory activity of 4-O-benzoyl-3′-O-(O-Methylsinapoyl)sucrose from polygala tenuifolia on Escherichia coli β-Glucuronidase

  • Jang Hoon Kim
  • , Le Ba Vinh
  • , Mok Hur
  • , Sung Cheol Koo
  • , Woo Tae Park
  • , Youn Ho Moon
  • , Yoon Jeong Lee
  • , Young Ho Kim
  • , Yun Chan Huh
  • , Seo Young Yang
  • United States Food and Drug Administration
  • Vietnamese Academy of Science and Technology
  • Chungnam National University

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Bacterial β-glucuronidase in the intestine is involved in the conversion of 7-ethyl-10-hydroxycamptochecin glucuronide (derived from irinotecan) to 7-ethyl-10-hydroxycamptothecin, which causes intestinal bleeding and diarrhea (side effects of anti-cancer drugs). Twelve compounds (1-12) from Polygala tenuifolia were evaluated in terms of β-glucuronidase inhibition in vitro. 4-O-Benzoyl-3′-O-(O-methylsinapoyl) sucrose (C3) was highly inhibitory at low concentrations. C3 (an uncompetitive inhibitor) exhibited a ki value of 13.4 μM; inhibitory activity increased as the substrate concentration rose. Molecular simulation revealed that C3 bound principally to the Gln158-Tyr160 enzyme loop. Thus, C3 will serve as a lead compound for development of new βglucuronidase inhibitors.

Original languageEnglish
Pages (from-to)1576-1582
Number of pages7
JournalJournal of Microbiology and Biotechnology
Volume31
Issue number11
DOIs
StatePublished - 28 Nov 2021

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • Molecular simulation
  • Polygala tenuifolia
  • Uncompetitive inhibitor
  • β-glucuronidase

Fingerprint

Dive into the research topics of 'Inhibitory activity of 4-O-benzoyl-3′-O-(O-Methylsinapoyl)sucrose from polygala tenuifolia on Escherichia coli β-Glucuronidase'. Together they form a unique fingerprint.

Cite this