dc.contributor.author | Ibarguren, Maitane | |
dc.contributor.author | López Jiménez, David | |
dc.contributor.author | Encinar Hidalgo, José Antonio | |
dc.contributor.author | González-Ros, Jose Manuel | |
dc.contributor.author | Busquets, Xavier | |
dc.contributor.author | Escriba, Pablo | |
dc.date.accessioned | 2024-02-08T11:28:54Z | |
dc.date.available | 2024-02-08T11:28:54Z | |
dc.date.issued | 2013-06-18 | |
dc.identifier.citation | Biochimica et Biophysica Acta - Biomembranes 1828(11) : 2553-2563 (2013) | es_ES |
dc.identifier.issn | 0005-2736 | |
dc.identifier.issn | 1879-2642 | |
dc.identifier.uri | http://hdl.handle.net/10810/65628 | |
dc.description.abstract | [EN] Cellular functions are usually associated with the activity of proteins and nucleic acids. Recent studies have shown that lipids modulate the localization and activity of key membrane-associated signal transduction proteins, thus regulating the cell's physiology. Membrane Lipid Therapy aims to reverse cell dysfunctions (i.e., diseases) by modulating the activity of membrane signaling proteins through regulation of the lipid bilayer structure. The present work shows the ability of a series of 2-hydroxyfatty acid (2OHFA) derivatives, varying in the acyl chain length and degree of unsaturation, to regulate the membrane lipid structure. These molecules have shown greater therapeutic potential than their natural non-hydroxylated counterparts. We demonstrated that both 2OHFA and natural FAs induced reorganization of lipid domains in model membranes of POPC:SM:PE:Cho, modulating the liquid-ordered/liquid-disordered structures ratio and the microdomain lipid composition. Fluorescence spectroscopy, confocal microscopy, Fourier transform infrared spectroscopy and differential detergent solubilization experiments showed a destabilization of the membranes upon addition of the 2OHFAs and FAs which correlated with the observed disordering effect. The changes produced by these synthetic fatty acids on the lipid structure may constitute part of their mechanism of action, leading to changes in the localization/activity of membrane proteins involved in signaling cascades, and therefore modulating cell responses. | es_ES |
dc.description.sponsorship | This work was supported by grants from Spanish Ministerio de Economía y Competitividad, Spain (BIO2010-21132; IPT-010000-2010-16; BFU2008-00602/BMC and CSD2008-00005)
Govern de les Illes Balears (Grups Competitius) and the Marathon Foundation.
Ministerio de Economía y Competitividad, Spain, and the European Social Fund (PTQ-10-04214 and PTQ-09-02-02113) | es_ES |
dc.language.iso | spa | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | fatty acids | es_ES |
dc.subject | lipid rafts | es_ES |
dc.subject | membrane lipids | es_ES |
dc.subject | membrane structure | es_ES |
dc.subject | membrane fluidity | es_ES |
dc.subject | membrane lipid therapy | es_ES |
dc.title | Partitioning of liquid-ordered/liquid-disordered membrane microdomains induced by the fluidifying effect of 2-hydroxylated fatty acid derivatives | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2013 Elsevier under CC BY-NC-ND license | * |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0005273613002034 | es_ES |
dc.identifier.doi | 10.1016/j.bbamem.2013.06.014 | |
dc.departamentoes | Bioquímica y biología molecular | es_ES |
dc.departamentoeu | Biokimika eta biologia molekularra | es_ES |