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Horváth, I.* ; Multhoff, G. ; Sonnleitner, A.* ; Vigh, L.*

Membrane-associated stress proteins: More than simply chaperones.

Biochim. Biophys. Acta-Biomembr. 1778, 1653-1664 (2008)
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The protein- and/or lipid-mediated association of chaperone proteins to membranes is a widespread phenomenon and implicated in a number of physiological and pathological events that were earlier partially or completely overlooked. A temporary association of certain HSPs with membranes can re-establish the fluidity and bilayer stability and thereby restore the membrane functionality during stress conditions. The fluidity and microdomain organization of membranes are decisive factors in the perception and transduction of stresses into signals that trigger the activation of specific HS genes. Conversely, the membrane association of HSPs may result in the inactivation of membrane-perturbing signals, thereby switch off the heat shock response. Interactions between certain HSPs and specific lipid microdomains ("rafts") might be a previously unrecognized means for the compartmentalization of HSPs to specific signaling platforms, where key signaling proteins are known to be concentrated. Any modulations of the membranes, especially the raft-lipid composition of the cells can alter the extracellular release and thus the immuno-stimulatory activity of certain HSPs. Reliable techniques, allowing mapping of the composition and dynamics of lipid microdomains and simultaneously the spatio-temporal localization of HSPs in and near the plasma membrane can provide suitable means with which to address fundamental questions, such as how HSPs are transported to and translocated through the plasma membrane. The possession of such information is critical if we are to target the membrane association principles of HSPs for successful drug development in most various diseases.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Chaperone; HSP-membrane association; Membrane fluidity; Raft; HSP70 exosomal export; Tumor; NK cell activity; Single molecule microscopy; Single particle tracking; Total internal reflection microscopy
Sprache englisch
Veröffentlichungsjahr 2008
HGF-Berichtsjahr 2008
ISSN (print) / ISBN 0005-2736
e-ISSN 1879-2642
Zeitschrift Biochimica et Biophysica Acta - Biomembranes
Quellenangaben Band: 1778, Heft: 7-8, Seiten: 1653-1664 Artikelnummer: , Supplement: ,
Verlag Elsevier
Begutachtungsstatus Peer reviewed
Institut(e) CCG Innate Immunity in Tumor Biology (PATH-KTB)
POF Topic(s) 30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
PSP-Element(e) G-521400-001
DOI 10.1016/j.bbamem.2008.02.012
Scopus ID 46149125267
Erfassungsdatum 2008-07-10
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