Journal
BIOESSAYS
Volume 34, Issue 9, Pages 739-747Publisher
WILEY
DOI: 10.1002/bies.201200044
Keywords
cytoskeleton; lipid rafts; microscopy; ordered-phase; super-resolution
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Funding
- Australian Research Council (ARC)
- National Health and Medical Research Council (NHMRC)
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Recently developed super-resolution microscopy techniques are changing our understanding of lipid rafts and membrane organisation in general. The lipid raft hypothesis postulates that cholesterol can drive the formation of ordered domains within the plasma membrane of cells, which may serve as platforms for cell signalling and membrane trafficking. There is now a wealth of evidence for these domains. However, their study has hitherto been hampered by the resolution limit of optical microscopy, making the definition of their properties problematic and contentious. New microscopy techniques circumvent the resolution limit and, for the first time, allow the fluorescence imaging of structures on length scales below 200?nm. This review describes such techniques, particularly as applied to the study of membrane organisation, synthesising newly emerging facets of lipid raft biology into a state-of-the art model. Editor's suggested further reading in BioEssays: Super-resolution imaging prompts re-thinking of cell biology mechanisms Abstract and Quantitative analysis of photoactivated localization microscopy (PALM) datasets using pair-correlation analysis Abstract
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