Live imaging of astrocyte responses to acute injury reveals selective juxtavascular proliferation

Bardehle S, Krueger M, Buggenthin F, Schwausch J, Ninkovic J, Clevers H, Snippert HJ, Theis FJ, Meyer-Luehmann M, Bechmann I, Dimou L, Goetz M (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Nature Neuroscience Nature Publishing Group

Book Volume: 16

Pages Range: 580-586

Journal Issue: 5

DOI: 10.1038/nn.3371

Abstract

Astrocytes are thought to have important roles after brain injury, but their behavior has largely been inferred from postmortem analysis. To examine the mechanisms that recruit astrocytes to sites of injury, we used in vivo two-photon laser-scanning microscopy to follow the response of GFP-labeled astrocytes in the adult mouse cerebral cortex over several weeks after acute injury. Live imaging revealed a marked heterogeneity in the reaction of individual astrocytes, with one subset retaining their initial morphology, another directing their processes toward the lesion, and a distinct subset located at juxtavascular sites proliferating. Although no astrocytes actively migrated toward the injury site, selective proliferation of juxtavascular astrocytes was observed after the introduction of a lesion and was still the case, even though the extent was reduced, after astrocyte-specific deletion of the RhoGTPase Cdc42. Thus, astrocyte recruitment after injury relies solely on proliferation in a specific niche. © 2013 Nature America, Inc. All rights reserved.

Involved external institutions

Ludwig-Maximilians-Universität (LMU) DE Germany (DE) Universität Leipzig DE Germany (DE) Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (HMGU) / Helmholtz Munich DE Germany (DE) Hubrecht Institute NL Netherlands (NL)

How to cite

APA:

Bardehle, S., Krueger, M., Buggenthin, F., Schwausch, J., Ninkovic, J., Clevers, H.,... Goetz, M. (2013). Live imaging of astrocyte responses to acute injury reveals selective juxtavascular proliferation. Nature Neuroscience, 16(5), 580-586. https://doi.org/10.1038/nn.3371

MLA:

Bardehle, Sophia, et al. "Live imaging of astrocyte responses to acute injury reveals selective juxtavascular proliferation." Nature Neuroscience 16.5 (2013): 580-586.

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