Cited by 329Nerve injury and regenerationAxon Guidance and Neuronal SignalingNeurogenesis and neuroplasticity mechanisms

An age-related sprouting transcriptome provides molecular control of axonal sprouting after stroke

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Li, Songlin, Overman, Justine J, Katsman, Diana, Kozlov, Serguei V, Donnelly, Christopher J, Twiss, Jeffery L, Giger, Roman J, Coppola, Giovanni +2 more·2010·Nature Neuroscience

Abstract

Stroke is an age-related disease. Recovery after stroke is associated with axonal sprouting in cortex adjacent to the infarct. The molecular program that induces a mature cortical neuron to sprout a new connection after stroke is not known. We selectively isolated neurons that sprout a new connection in cortex after stroke and compared their whole-genome expression profile to that of adjacent, non-sprouting neurons. This 'sprouting transcriptome' identified a neuronal growth program that consists of growth factor, cell adhesion, axonal guidance and cytoskeletal modifying molecules that differed by age and time point. Gain and loss of function in three distinct functional classes showed new roles for these proteins in epigenetic regulation of axonal sprouting, growth factor-dependent survival of neurons and, in the aged mouse, paradoxical upregulation of myelin and ephrin receptors in sprouting neurons. This neuronal growth program may provide new therapeutic targets and suggest mechanisms for age-related differences in functional recovery.

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Crossref · 10.1038/nn.2674

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  • In rodent and primate models of stroke, axonal sprouting and the formation of new connections occurs in motor, somatosensory and premotor areas.

    “In rodent and primate models of stroke, axonal sprouting and the formation of new connections occurs in motor, somatosensory and premotor areas1–4.”

    From GDF10 is a signal for axonal sprouting and functional recovery after stroke (2015) · cites this paper as [3]

    The Results section (“ATRX mediates axonal sprouting after stroke”; page unavailable) reports stroke-induced sprouting in motor, premotor and somatosensory areas in mice. The paper also describes new projection patterns in rats, but the passages in our copy do not establish the claim for primate stroke models. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • GDF10 is one of the most highly upregulated genes during the initiation of axonal sprouting in peri-infarct cortical neurons in the aged brain.

    “Within the post-stroke axonal sprouting transcriptome, Growth and Differentiation Factor 10 (GDF10) is one of the most highly upregulated genes during the initiation of axonal sprouting in peri-infarct cortical neurons in the aged brain.”

    From GDF10 is a signal for axonal sprouting and functional recovery after stroke (2015) · cites this paper as [3]

    The Results section reports that Gdf10 was upregulated in aged sprouting neurons at day 7 after stroke, and localizes GDF10 to peri-infarct cortical neurons. It does not identify Gdf10 as one of the most highly upregulated genes; it names Igf1 and osteopontin as the most differentially regulated genes. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Stroke induces axonal sprouting and the formation of new connections in peri-infarct cortex that link premotor, motor, somatosensory and association areas.

    “Stroke induces axonal sprouting and the formation of new connections in peri-infarct cortex that link premotor, motor, somatosensory and association areas1–4.”

    From GDF10 is a signal for axonal sprouting and functional recovery after stroke (2015) · cites this paper as [3]

    The Results section (“ATRX mediates axonal sprouting after stroke”; page unavailable) reports increased peri-infarct connections and stroke-induced sprouting in motor, premotor and somatosensory areas. The paper also describes new connection patterns, but our copy does not establish the claim’s additional link to association areas. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • GDF10 is induced in sprouting neurons from aged rats during the initiation phase of axonal sprouting, 7 days after stroke, 1.32× with microarray and 3× with confirmatory qPCR (p<0.0009).

    “GDF10 is induced in sprouting neurons from aged rats during the initiation phase of axonal sprouting, 7 days after stroke3: 1.32× with microarray and 3× with confirmatory qPCR (p<0.0009) at 7d after stroke3.”

    From GDF10 is a signal for axonal sprouting and functional recovery after stroke (2015) · cites this paper as [3]

    The Results sections on gene expression and mRNA confirmation report that day 7 was examined as an early stage of sprouting and that Gdf10 was upregulated in aged rat sprouting neurons in both the microarray and confirmatory qRT-PCR analyses. The passages in our copy do not give the claimed 1.32× and 3× changes or p<0.0009, so those numerical details remain unsupported. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Nucleotide-modified siRNA delivered directly into the infarct core produces protein knockdown over at least 2 weeks after stroke with GDF10.

    “As previously shown in other gene systems3,4, nucleotide-modified siRNA delivered directly into the infarct core produces protein knockdown over at least 2 weeks after stroke with GDF10 (Supplementary Fig. 3a).”

    From GDF10 is a signal for axonal sprouting and functional recovery after stroke (2015) · cites this paper as [3]

    The Results section, “ATRX mediates axonal sprouting after stroke” (page unavailable), reports ATRX knockdown in vivo after stroke using Atrx siRNA. Our copy does not establish that the siRNA was nucleotide-modified or delivered directly into the infarct core, or that protein knockdown lasted at least two weeks. It reports GDF10 expression after stroke, not GDF10 knockdown. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

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Authors
Li, S., Overman, J. J., Katsman, D., Kozlov, S. V., Donnelly, C. J., Twiss, J. L., Giger, R. J., Coppola, G., Geschwind, D. H., & Carmichael, S. T.
Affiliations
  • University of California, Los Angeles (US)
  • Drexel University (US)
  • University of Michigan (US)
Corresponding author
Carmichael, S Thomas
Venue
Nature Neuroscience
Published
2010-11-07
Volume
13
Issue
12
Pages
1496-1504
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W1981596049
Cited by
329
References
50
Citations by year
2026: 7 · 2025: 14 · 2024: 15 · 2023: 28 · 2022: 17 · 2021: 20 · 2020: 16 · 2019: 34 · 2018: 21 · 2017: 27 · 2016: 20 · 2015: 18 · 2014: 20 · 2013: 20 · 2012: 27
FWCI
9.17
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (NS049041, R01NS045729, NS045729, R01NS041596, NS04733, R01NS049041)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
axonal sprouting, stroke, epigenetic regulation, growth factors, cell adhesion, axon guidance, cytoskeletal proteins, Eph receptors, neuronal survival, cortical neurons, functional recovery
MeSH terms
Aging, Animals, Axons, Cells, Cultured, Male, Mice, Inbred C57BL, Rats, Inbred F344, Sensory Receptor Cells, Up-Regulation, Recovery of Function, Stroke, Gene Expression Profiling, Mice, Rats

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