ArticleThe Journal of cell biology2019
Ral GTPases in Schwann cells promote radial axonal sorting in the peripheral nervous system.
Article in The Journal of cell biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 18 citations in OpenAlex.
- Review
- A physical perspective to understand myelin II: The physical origin of myelin development.Frontiers in neuroscience · 2022Article
- Manipulating oligodendrocyte intrinsic regeneration mechanism to promote remyelination.Cellular and molecular life sciences : CMLS · 2021Review
- Article
- Deletion of the Gene Encoding the NMDA Receptor GluN1 Subunit in Schwann Cells Causes Ultrastructural Changes in Remak Bundles and Hypersensitivity in Pain Processing.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
- LAMA2 Neuropathies: Human Findings and Pathomechanisms From Mouse Models.Frontiers in molecular neuroscience · 2020Article
- Insights Into the Role and Potential of Schwann Cells for Peripheral Nerve Repair From Studies of Development and Injury.Frontiers in molecular neuroscience · 2020Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Small GTPases of the Rho and Ras families are important regulators of Schwann cell biology. The Ras-like GTPases RalA and RalB act downstream of Ras in malignant peripheral nerve sheath tumors. However, the physiological role of Ral proteins in Schwann cell development is unknown. Using transgenic mice with ablation of one or both Ral genes, we report that Ral GTPases are crucial for axonal radial sorting. While lack of only one Ral GTPase was dispensable for early peripheral nerve development, ablation of both RalA and RalB resulted in persistent radial sorting defects, associated with hallmarks of deficits in Schwann cell process formation and maintenance. In agreement, ex vivo-cultured Ral-deficient Schwann cells were impaired in process extension and the formation of lamellipodia. Our data indicate further that RalA contributes to Schwann cell process extensions through the exocyst complex, a known effector of Ral GTPases, consistent with an exocyst-mediated function of Ral GTPases in Schwann cells.
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