Cited by 176Neurogenesis and neuroplasticity mechanismsRNA Research and SplicingAxon Guidance and Neuronal Signaling

Nova2 Regulates Neuronal Migration through an RNA Switch in Disabled-1 Signaling

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Yano, Masato, Hayakawa-Yano, Yoshika, Mele, Aldo, Darnell, Robert B.·2010·Neuron

Abstract

Neuronal migration leads to a highly organized laminar structure in the mammalian brain, and its misregulation causes lissencephaly and behavioral and cognitive defects. Reelin signaling, which is mediated in part by a key adaptor, disabled-1 (Dab1), plays a critical but incompletely understood role in this process. We found that the neuron-specific RNA-binding protein Nova2 regulates neuronal migration in late-generated cortical and Purkinje neurons. An unbiased HITS-CLIP and exon junction array search for Nova-dependent reelin-pathway RNAs at E14.5 revealed only one candidate-an alternatively spliced isoform of Dab1 (Dab1.7bc). In utero electroporation demonstrated that Dab1.7bc was sufficient to induce neuronal migration defects in wild-type mice and exacerbate defects when Dab1 levels were reduced, whereas Dab1 overexpression mitigates defects in Nova2 null mice. Thus, Nova2 regulates an RNA switch controlling the ability of Dab1 to mediate neuronal responsiveness to reelin signaling and neuronal migration, suggesting new links between splicing regulation, brain disease, and development.

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Crossref · 10.1016/j.neuron.2010.05.007

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  • Pleurobrachia has more RNA-binding proteins, especially RRM/ELAV, KH and NOVAs, than any basal metazoan or choanoflagellate examined.

    “Matching the expansion of RNA regulatory mechanisms, Pleurobrachia has more RNA-binding proteins (especially RRM/ELAV, KH and NOVAs 26,27 , Supplementary Table 21) thananybasalmetazoanorchoanoflagellateexamined.”

    From The ctenophore genome and the evolutionary origins of neural systems (2014) · cites this paper as [26]

    The Introduction discusses RNA-binding proteins in mammalian neuronal development, and the Results examine Nova2 in mouse brain. Searches for Pleurobrachia, choanoflagellates, and the named protein families found no passage comparing their RNA-binding-protein counts across species. (LLM, conf=0.75)

    Experimental — accuracy not yet measured
  • In Nova2-null mice, neurons of cortical layers II/III and IV are mislocalized to lower layers without altering the layer-specific molecular markers.

    “In Nova2-null mice, neurons of cortical layers II/III and IV are mislocalized to lower layers without altering the layer-specific molecular markers39”

    From The neurogenetics of alternative splicing (2016) · cites this paper as [39]

  • Progenitor cell proliferation and radial glia morphology are largely unaffected in Nova2-null mice, suggesting a defect in neuronal migration rather than subtype specification.

    “Progenitor cell proliferation and radial glia morphology are largely unaffected, suggesting a defect in neuronal migration rather than subtype specification.”

    From The neurogenetics of alternative splicing (2016) · cites this paper as [39]

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Authors
Yano, M., Hayakawa-Yano, Y., Mele, A., & Darnell, R. B.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Darnell, Robert B.
Venue
Neuron
Publisher
Elsevier BV
Published
2010-06
Volume
66
Issue
6
Pages
848-858
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1971147333
Cited by
176
References
64
Citations by year
2026: 2 · 2025: 5 · 2024: 12 · 2023: 11 · 2022: 13 · 2021: 11 · 2020: 9 · 2019: 12 · 2018: 13 · 2017: 15 · 2016: 13 · 2015: 4 · 2014: 13 · 2013: 13 · 2012: 12
FWCI
4.35
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of Neurological Disorders and Stroke (RC2NS069473, R01NS034389)
  • National Center for Research Resources (UL1RR024143)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
Keywords
NOVA2, neuronal migration, Disabled-1, Dab1, Reelin signaling, RNA switches, alternative splicing, RNA-binding proteins, cortical neurons, Purkinje cells, lissencephaly, HITS-CLIP, brain development
MeSH terms
Neuro-Oncological Ventral Antigen, Reelin Protein, Animals, Antigens, Neoplasm, Bromodeoxyuridine, Cell Movement, Embryo, Mammalian, Nerve Tissue Proteins, Neurons, RNA Splicing, Signal Transduction, RNA-Binding Proteins, Mice, Knockout, Neocortex, Mice

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