Membrane Interaction of Ibuprofen with Cholesterol-Containing Lipid Membranes.

Membrane Interaction of Ibuprofen with Cholesterol-Containing Lipid Membranes.
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DOI:
10.3390/biom10101384
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发表时间:
2020-09-28
期刊:
影响因子:
5.5
通讯作者:
Scheidt HA
Scheidt HA
中科院分区:
生物学2区
文献类型:
--
作者:
Kremkow J;Luck M;Huster D;Müller P;Scheidt HA

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Deciphering the membrane interaction of drug molecules is important for improving drug delivery, cellular uptake, and the understanding of side effects of a given drug molecule. For the anti-inflammatory drug ibuprofen, several studies reported contradictory results regarding the impact of ibuprofen on cholesterol-containing lipid membranes. Here, we investigated membrane localization and orientation as well as the influence of ibuprofen on membrane properties in POPC/cholesterol bilayers using solid-state NMR spectroscopy and other biophysical assays. The presence of ibuprofen disturbs the molecular order of phospholipids as shown by alterations of the 2H and 31P-NMR spectra of the lipids, but does not lead to an increased membrane permeability or changes of the phase state of the bilayer. 1H MAS NOESY NMR results demonstrate that ibuprofen adopts a mean position in the upper chain/glycerol region of the POPC membrane, oriented with its polar carbonyl group towards the aqueous phase. This membrane position is only marginally altered in the presence of cholesterol. A previously reported result that ibuprofen is expelled from the membrane interface in cholesterol-containing DMPC bilayers could not be confirmed.
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