Constituents of Hondurian Propolis with Inhibitory Effects on Saccharomyces cerevisiae Multidrug Resistance Protein Pdr5p

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• 作者：Cinzia Lotti ; Anna Lisa Piccinelli ; Carolina Arevalo ; Ines Ruiz ; Gabriellen M. Migliani De Castro ; Leandro Figueira Reis De S谩 ; Ana Claudia Tessis ; Antonio Ferreira-Pereira ; Luca Rastrelli
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2012
• 出版时间：October 24, 2012
• 年：2012
• 卷：60
• 期：42
• 页码：10540-10545
• 全文大小：227K
• 年卷期：v.60,no.42(October 24, 2012)
• ISSN：1520-5118

文摘

Chemical investigation of a propolis sample collected in Honduras has led to the isolation of the new (E,Z)-cinnamyl cinnamate (2) together with 14 known compounds: 6 cinnamic ester derivatives, 2 flavanones, 1 chalcone, 2 triterpenes, and 3 aromatic acids. Structural determination was accomplished by spectroscopic analysis, particularly two-dimensional (2D) nuclear magnetic resonance (NMR) and electrospray ionization鈥搕andem mass spectrometry (ESI鈥揗S/MS) techniques. Futhermore, we checked the ability of the propolis extract and the most representative compounds of each class (1, 5, 8, and 10) to inhibit the activity of Pdr5p, a protein responsible for a multidrug resistance phenotype in yeast. The present study appears to be the first report on Honduras propolis. Isolated cinnamic ester derivatives indicated the possible relation between Honduras propolis and the genus Liquidambar.

Keywords:

Honduras propolis; cinnamic ester derivatives; aromatic compounds; triterpenes; 1D and 2D NMR spectroscopy; ESI鈭扢S/MS; Pdr5p; multidrug resistance