Diffusion dynamics of glycine receptors revealed by single-quantum dot tracking

M Dahan, S Levi, C Luccardini, P Rostaing, B Riveau… - Science, 2003 - science.org
M Dahan, S Levi, C Luccardini, P Rostaing, B Riveau, A Triller
Science, 2003science.org
Semiconductor quantum dots (QDs) are nanometer-sized fluorescent probes suitable for
advanced biological imaging. We used QDs to track individual glycine receptors (GlyRs) and
analyze their lateral dynamics in the neuronal membrane of living cells for periods ranging
from milliseconds to minutes. We characterized multiple diffusion domains in relation to the
synaptic, perisynaptic, or extrasynaptic GlyR localization. The entry of GlyRs into the
synapse by diffusion was observed and further confirmed by electron microscopy imaging of …
Semiconductor quantum dots (QDs) are nanometer-sized fluorescent probes suitable for advanced biological imaging. We used QDs to track individual glycine receptors (GlyRs) and analyze their lateral dynamics in the neuronal membrane of living cells for periods ranging from milliseconds to minutes. We characterized multiple diffusion domains in relation to the synaptic, perisynaptic, or extrasynaptic GlyR localization. The entry of GlyRs into the synapse by diffusion was observed and further confirmed by electron microscopy imaging of QD-tagged receptors.
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