Journal Article

DZNE-2020-03077

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png ADF/cofilin-mediated actin retrograde flow directs neurite formation in the developing brain.

Flynn, K. C. (First author)DZNE* ; Hellal, F.DZNE* ; Neukirchen, D. ; Jacob, S. ; Tahirovic, S.DZNE* ; Dupraz, S.DZNE* ; Stern, S.DZNE* ; Garvalov, B. K. ; Gurniak, C. ; Shaw, A. E. ; Meyn, L.DZNE* ; Wedlich-Söldner, R. ; Bamburg, J. R. ; Small, J. V. ; Witke, W. ; Bradke, F. (Last author)DZNE*

2012
Elsevier New York, NY

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Please use a persistent id in citations: doi:10.1016/j.neuron.2012.09.038

Abstract: Neurites are the characteristic structural element of neurons that will initiate brain connectivity and elaborate information. Early in development, neurons are spherical cells but this symmetry is broken through the initial formation of neurites. This fundamental step is thought to rely on actin and microtubule dynamics. However, it is unclear which aspects of the complex actin behavior control neuritogenesis and which molecular mechanisms are involved. Here, we demonstrate that augmented actin retrograde flow and protrusion dynamics facilitate neurite formation. Our data indicate that a single family of actin regulatory proteins, ADF/Cofilin, provides the required control of actin retrograde flow and dynamics to form neurites. In particular, the F-actin severing activity of ADF/Cofilin organizes space for the protrusion and bundling of microtubules, the backbone of neurites. Our data reveal how ADF/Cofilin organizes the cytoskeleton to drive actin retrograde flow and thus break the spherical shape of neurons.

Keyword(s): Actin Depolymerizing Factors: physiology (MeSH) ; Actins: metabolism (MeSH) ; Animals (MeSH) ; Biological Transport (MeSH) ; Cell Growth Processes: physiology (MeSH) ; Cell Shape: physiology (MeSH) ; Cells, Cultured (MeSH) ; Cerebral Cortex: cytology (MeSH) ; Cerebral Cortex: embryology (MeSH) ; Destrin: physiology (MeSH) ; Growth Cones: metabolism (MeSH) ; Hippocampus: cytology (MeSH) ; Hippocampus: embryology (MeSH) ; In Vitro Techniques (MeSH) ; Mice (MeSH) ; Mice, Knockout (MeSH) ; Microtubules: physiology (MeSH) ; Neurites: metabolism (MeSH) ; Neurogenesis: physiology (MeSH) ; Actin Depolymerizing Factors ; Actins ; Destrin ; Dstn protein, mouse

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Contributing Institute(s):

1. Axon Growth and Regeneration (AG Bradke)
2. Juvenile Neurodegeneration (AG Tahirovic)

Research Program(s):

1. 341 - Molecular Signaling (POF3-341) (POF3-341)
2. 342 - Disease Mechanisms and Model Systems (POF3-342) (POF3-342)

Appears in the scientific report 2012

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Database coverage:
; BIOSIS Previews ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Ebsco Academic Search ; IF >= 10 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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