Fundamental Roles of Lipids on Membrane Mechanics, Fluidity and Fusion

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Biological Membrane Functions".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 2608

Special Issue Editor


E-Mail Website
Guest Editor
Moleculaire Biofysica, Zernike Instituut, Rijksuniversiteit Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Interests: membranes; membrane biophysics; membrane structure; membrane fusion; fluorescence lifetime imaging (FLIM); fluorescence recovery after photobleaching (FRAP); membrane mechanics; cellular biophysics; giant unilamellar vesicles; lipid vesicles

Special Issue Information

Dear Colleagues,

Cellular membranes provide the selectively permeable barrier that controls the intake of molecules into cells and forms separate multiple compartments, creating organelles and the cell itself. Both transmembrane uptake and cell compartmentalization depend on the active function of membrane proteins. Less understood, nevertheless, is the role of membrane lipids. Lipids make up the large majority of membrane molecules and confer the basic fundamental physical properties of membranes. Yet, little is known about their roles on active processes that are intrinsically dependent on membrane mechanics, such as membrane fusion. Fusion is the processes by which two initially separated membranes contact and merge, mixing both their membranes and the otherwise separated internal compartments. Like other processes in cells, including division, fission and endocytosis, fusion requires the membrane to undergo large morphological transformations without disruption, conditions that are only favorable in a specific range of fluidity.

This Special Issue aims to cover the latest developments in the fundamental physical aspects of membranes that are critical for cell activity, using cells and membrane models. These aspects are mainly related, but not limited, to membrane mechanics, fluidity and fusion, and the techniques used to study them.

Topics include but not limited to:

  • Development and characterization of membrane models (LUVs, GUVs, SLBs and membrane-coated beads);
  • Intra and extracellular vesicles;
  • Membrane imaging and dynamics, diffusion coefficient, phase-separation, membrane binding;
  • Advanced optical imaging of membranes (FRAP, FRET, FLIM, FCS, super-resolution microscopy);
  • Membrane fusion assays;
  • Membrane micromanipulation techniques (optical and magnetic tweezers, microfluidics, atomic force microscopy and electric fields);
  • Membrane structure and morphology (bending rigidity, tension, viscosity, fluidity, line and edge tension and spontaneous curvature);
  • Physical-chemical and thermodynamics characterization (static and dynamic light scattering, zeta potential, isothermal titration calorimetry and differential scanning calorimetry);
  • Living cell imaging.

Dr. Rafael Lira
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Review

11 pages, 1642 KiB  
Review
Plasma Membrane Lipids: An Important Binding Site for All Lipoprotein Classes
by Markus Axmann, Birgit Plochberger, Mario Mikula, Florian Weber, Witta Monika Strobl and Herbert Stangl
Membranes 2021, 11(11), 882; https://doi.org/10.3390/membranes11110882 - 17 Nov 2021
Cited by 2 | Viewed by 2177
Abstract
Cholesterol is one of the main constituents of plasma membranes; thus, its supply is of utmost importance. This review covers the known mechanisms of cholesterol transfer from circulating lipoprotein particles to the plasma membrane, and vice versa. To achieve homeostasis, the human body [...] Read more.
Cholesterol is one of the main constituents of plasma membranes; thus, its supply is of utmost importance. This review covers the known mechanisms of cholesterol transfer from circulating lipoprotein particles to the plasma membrane, and vice versa. To achieve homeostasis, the human body utilizes cellular de novo synthesis and extracellular transport particles for supply of cholesterol and other lipids via the blood stream. These lipoprotein particles can be classified according to their density: chylomicrons, very low, low, and high-density lipoprotein (VLDL, LDL, and HDL, respectively). They deliver and receive their lipid loads, most importantly cholesterol, to and from cells by several redundant routes. Defects in one of these pathways (e.g., due to mutations in receptors) usually are not immediately fatal. Several redundant pathways, at least temporarily, compensate for the loss of one or more of them, but the defects trigger systemic diseases, such as atherosclerosis later on. Recently, intracellular membrane–membrane contact sites were shown to be involved in intracellular cholesterol transfer and the plasma membrane itself has been proposed to act as a binding site for lipoprotein-mediated cargo unloading. Full article
Show Figures

Figure 1

Back to TopTop