Biomolecules (Mar 2021)

Isomadecassoside, a New Ursane-Type Triterpene Glycoside from <i>Centella asiatica</i> Leaves, Reduces Nitrite Levels in LPS-Stimulated Macrophages

  • Giuseppina Chianese,
  • Francesca Masi,
  • Donatella Cicia,
  • Daniele Ciceri,
  • Sabrina Arpini,
  • Mario Falzoni,
  • Ester Pagano,
  • Orazio Taglialatela-Scafati

DOI
https://doi.org/10.3390/biom11040494
Journal volume & issue
Vol. 11, no. 4
p. 494

Abstract

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A madecassoside-rich fraction obtained from the industrial purification of Centella asiatica leaves afforded a new triterpene glycoside, named isomadecassoside (4), characterized by an ursane-type skeleton and migration of the double bond at Δ20(21) in ring E. The structure of isomadecassoside was established by means of HR-ESIMS and detailed analysis of 1D and 2D NMR spectra, which allowed a complete NMR assignment. Studies on isolated J774A.1 macrophages stimulated by LPS revealed that isomadecassoside (4) inhibited nitrite production at non-cytotoxic concentrations, thus indicating an anti-inflammatory effect similar to that of madecassoside.

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