Table · dataset · 2026
Domain Dissolution in Supported Lipid Bilayers Triggered by Unsaturated Phospholipid Addition
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Significant cellular processes, including protein sorting, signal transduction, and pathogen entry, among others, are associated with membrane microdomains, also known as lipid rafts.
Description
Lipid rafts, due to their unique biophysical properties compared to their surrounding environment, which stem from their distinct lipid and protein profiles, have garnered interest in methods and techniques that tune their coexisting liquid-ordered/liquid-disordered state, aiming to disrupt or destabilize them.
Since cholesterol stabilizes the membrane domain, cholesterol-depleting compounds like cyclodextrin can be used to destabilize and disrupt the membrane rafts. Overall, given the membrane raft’s importance in biological processes, it is crucial to understand the biophysical factors that influence its stability. In this study, we present a new method for disrupting and dissolving lipid rafts in a model system of phase-separated supported lipid bilayer (SLB) patches composed of DOPC, DPPC, and cholesterol.
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Using fluorescence microscopy to monitor the liquid-ordered (Lo) and liquid-disordered (Ld) phases of the SLB patches, we observed that adding DOPC liposomes causes a transformation of the coexisting Ld and Lo phases into a single-phase bilayer. On the other hand, adding liposomes that match the lipid content of the phase-separated SLB patch increases the areas of the existing Ld and Lo phases. This work also offers a new method for redistributing raft-localized molecules, confirmed by tracking the redistribution of cholera toxin bound to GM1 after domain dissolution with DOPC liposomes.
The work describes an alternative method for dynamically altering membrane composition and dissolving domains via liposome addition, rather than lipid depletion or exchange.
Links
Where it is published
- DOI doi.org/10.1021/acs.langmuir.6c03121.s005 ↗
DOI / persistent id · from figshare com
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from figshare com
Topics
- From keywords
- Astronomy & Astrophysics · Biochemistry and cell biology · Chemistry · Computer Science & AI · Earth & Environmental Science · Economics & Finance · Engineering · Genetics · Humanities · Immunology · Life Sciences · Medicine & Health · Ocean & Atmospheric Science · Signal transduction · Social Science
- Inferred from text
- Microscopy 75%
Related
- Possibly the same asDomain Dissolution in Supported Lipid Bilayers Triggered by Unsaturated Phospholipid Addition
- Possibly the same asDomain Dissolution in Supported Lipid Bilayers Triggered by Unsaturated Phospholipid Addition
- Possibly the same asDomain Dissolution in Supported Lipid Bilayers Triggered by Unsaturated Phospholipid Addition
Provenance · 1 source records, 21 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| figshare | oai:figshare.com:article/33909229 | 4 d ago | JSON v1 |
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| concepts[field].anzsrc:group:3101 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Cell Biology'] |
| concepts[field].anzsrc:group:3105 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
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