Imaging of molecular surface dynamics in brain slices using single-particle tracking
Publication year
2014Source
Nature Communications, 5, (2014), pp. 3024ISSN
Publication type
Article / Letter to editor
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Organization
Biochemistry (UMC)
Journal title
Nature Communications
Volume
vol. 5
Page start
p. 3024
Subject
Radboudumc 19: Nanomedicine RIMLS: Radboud Institute for Molecular Life SciencesAbstract
Organization of signalling molecules in biological membranes is crucial for cellular communication. Many receptors, ion channels and cell adhesion molecules are associated with proteins important for their trafficking, surface localization or function. These complexes are embedded in a lipid environment of varying composition. Binding affinities and stoichiometry of such complexes were so far experimentally accessible only in isolated systems or monolayers of cell culture. Visualization of molecular dynamics within signalling complexes and their correlation to specialized membrane compartments demand high temporal and spatial resolution and has been difficult to demonstrate in complex tissue like brain slices. Here we demonstrate the feasibility of single-particle tracking (SPT) in organotypic brain slices to measure molecular dynamics of lipids and transmembrane proteins in correlation to synaptic membrane compartments. This method will provide important information about the dynamics and organization of surface molecules in the complex environment of neuronal networks within brain slices.
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- Academic publications [246164]
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- Faculty of Medical Sciences [93268]
- Open Access publications [107301]
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