Journal
MEMBRANES
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/membranes11020132
Keywords
resveratrol; planar lipid membrane; cholesterol; channel-like event; capacitance
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Resveratrol interacts with planar lipid membranes of different compositions, incorporating into certain types and forming conductive units. The changes in biophysical parameters of the membranes in the presence of resveratrol provide insights into its location within the lipid bilayer, contributing to an understanding of its mechanism of action.
Resveratrol, a polyphenolic molecule found in edible fruits and vegetables, shows a wide range of beneficial effects on human health, including anti-microbial, anti-inflammatory, anti-cancer, and anti-aging properties. Due to its poor water solubility and high liposome-water partition coefficient, the biomembrane seems to be the main target of resveratrol, although the mode of interaction with membrane lipids and its location within the cell membrane are still unclear. In this study, using electrophysiological measurements, we study the interaction of resveratrol with planar lipid membranes (PLMs) of different composition. We found that resveratrol incorporates into palmitoyl-oleoyl-phosphatidylcholine (POPC) and POPC:Ch PLMs and forms conductive units unlike those found in dioleoyl-phosphatidylserine (DOPS):dioleoyl-phosphatidylethanolamine (DOPE) PLMs. The variation of the biophysical parameters of PLMs in the presence of resveratrol provides information on its location within a lipid double layer, thus contributing to an understanding of its mechanism of action.
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