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The Implications for Cells of the Lipid Switches Driven by Protein–Membrane Interactions and the Development of Membrane Lipid Therapy

1
Laboratory of Molecular Cell Biomedicine, Department of Biology, University of the Balearic Islands, Ctra. de Valldemossa km 7.5, E-07122 Palma, Spain
2
Department of R&D, Laminar Pharmaceuticals SL. ParcBit, Ed. Naorte B, E-07121 Palma, Spain
3
Department of Neurology, Hadassah-Hebrew University Medical Center, Ein Kerem, 91120 Jerusalem, Israel
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(7), 2322; https://doi.org/10.3390/ijms21072322
Received: 2 March 2020 / Revised: 17 March 2020 / Accepted: 19 March 2020 / Published: 27 March 2020
(This article belongs to the Special Issue Lipid-Protein and Protein-Protein Interactions in Membranes)
The cell membrane contains a variety of receptors that interact with signaling molecules. However, agonist–receptor interactions not always activate a signaling cascade. Amphitropic membrane proteins are required for signal propagation upon ligand-induced receptor activation. These proteins localize to the plasma membrane or internal compartments; however, they are only activated by ligand-receptor complexes when both come into physical contact in membranes. These interactions enable signal propagation. Thus, signals may not propagate into the cell if peripheral proteins do not co-localize with receptors even in the presence of messengers. As the translocation of an amphitropic protein greatly depends on the membrane’s lipid composition, regulation of the lipid bilayer emerges as a novel therapeutic strategy. Some of the signals controlled by proteins non-permanently bound to membranes produce dramatic changes in the cell’s physiology. Indeed, changes in membrane lipids induce translocation of dozens of peripheral signaling proteins from or to the plasma membrane, which controls how cells behave. We called these changes “lipid switches”, as they alter the cell’s status (e.g., proliferation, differentiation, death, etc.) in response to the modulation of membrane lipids. Indeed, this discovery enables therapeutic interventions that modify the bilayer’s lipids, an approach known as membrane-lipid therapy (MLT) or melitherapy. View Full-Text
Keywords: protein–membrane interactions; melitherapy; lipid bilayer; membrane lipid switch; peripheral amphitropic non-permanently bound membrane proteins protein–membrane interactions; melitherapy; lipid bilayer; membrane lipid switch; peripheral amphitropic non-permanently bound membrane proteins
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MDPI and ACS Style

Torres, M.; Rosselló, C.A.; Fernández-García, P.; Lladó, V.; Kakhlon, O.; Escribá, P.V. The Implications for Cells of the Lipid Switches Driven by Protein–Membrane Interactions and the Development of Membrane Lipid Therapy. Int. J. Mol. Sci. 2020, 21, 2322.

AMA Style

Torres M, Rosselló CA, Fernández-García P, Lladó V, Kakhlon O, Escribá PV. The Implications for Cells of the Lipid Switches Driven by Protein–Membrane Interactions and the Development of Membrane Lipid Therapy. International Journal of Molecular Sciences. 2020; 21(7):2322.

Chicago/Turabian Style

Torres, Manuel; Rosselló, Catalina A.; Fernández-García, Paula; Lladó, Victoria; Kakhlon, Or; Escribá, Pablo V. 2020. "The Implications for Cells of the Lipid Switches Driven by Protein–Membrane Interactions and the Development of Membrane Lipid Therapy" Int. J. Mol. Sci. 21, no. 7: 2322.

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