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Spatial distribution of Na+-K+-ATPase in dendritic spines dissected by nanoscale superresolution STED microscopy

Open access
Blom, Hans, Rönnlund, Daniel, Scott, Lena, Spicarova, Zuzana, Widengren, Jerker, Bondar, Alexander, Aperia, Anita, Brismar, Hjalmar·2011·BMC Neuroscience

Abstract

Background: The Na+,K+-ATPase plays an important role for ion homeostasis in virtually all mammalian cells, including neurons. Despite this, there is as yet little known about the isoform specific distribution in neurons. Results: With help of superresolving stimulated emission depletion microscopy the spatial distribution of Na+,K+-ATPase in dendritic spines of cultured striatum neurons have been dissected. The found compartmentalized distribution provides a strong evidence for the confinement of neuronal Na+,K+-ATPase (α3 isoform) in the postsynaptic region of the spine. Conclusions: A compartmentalized distribution may have implications for the generation of local sodium gradients within the spine and for the structural and functional interaction between the sodium pump and other synaptic proteins. Superresolution microscopy has thus opened up a new perspective to elucidate the nature of the physiological function, regulation and signaling role of Na+,K+-ATPase from its topological distribution in dendritic spines.

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Metadata

Authors
Blom, H., Rönnlund, D., Scott, L., Spicarova, Z., Widengren, J., Bondar, A., Aperia, A., & Brismar, H.
Venue
BMC Neuroscience
Published
2011-01-27
Volume
12
Issue
1
Pages
16-16
ISSN
1471-2202 (ISSN-L)
OpenAlex
W2146184464
Cited by
158
References
1
FWCI
10.36
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Spatial distribution of Na+-K+-ATPase in dendritic spines dissected by nanoscale superresolution STED microscopy. https://app.cochat.ai/papers/10.1186/1471-2202-12-16
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Blom, H., Rönnlund, D., Scott, L., Spicarova, Z., Widengren, J., Bondar, A., Aperia, A., & Brismar, H. (2011). Spatial distribution of Na+-K+-ATPase in dendritic spines dissected by nanoscale superresolution STED microscopy. BMC Neuroscience. https://doi.org/10.1186/1471-2202-12-16

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