Cspg4 sculpts oligodendrocyte precursor cell morphology.

Autor: Bromley-Coolidge S; Section of Developmental Biology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80445, USA., Iruegas D; Section of Developmental Biology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80445, USA., Appel B; Section of Developmental Biology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80445, USA. Electronic address: bruce.appel@cuanschutz.edu.
Jazyk: angličtina
Zdroj: Differentiation; research in biological diversity [Differentiation] 2024 Nov-Dec; Vol. 140, pp. 100819. Date of Electronic Publication: 2024 Nov 08.
DOI: 10.1016/j.diff.2024.100819
Abstrakt: The extracellular matrix (ECM) provides critical biochemical and structural cues that regulate neural development. Chondroitin sulfate proteoglycans (CSPGs), a major ECM component, have been implicated in modulating oligodendrocyte precursor cell (OPC) proliferation, migration, and maturation, but their specific roles in oligodendrocyte lineage cell (OLC) development and myelination in vivo remain poorly understood. Here, we use zebrafish as a model system to investigate the spatiotemporal dynamics of ECM deposition and CSPG localization during central nervous system (CNS) development, with a focus on their relationship to OLCs. We demonstrate that ECM components, including CSPGs, are dynamically expressed in distinct spatiotemporal patterns coinciding with OLC development and myelination. We found that zebrafish lacking cspg4 function produced normal numbers of OLCs, which appeared to undergo proper differentiation. However, OPC morphology in mutant larvae was aberrant. Nevertheless, the number and length of myelin sheaths produced by mature oligodendrocytes were unaffected. These data indicate that Cspg4 regulates OPC morphogenesis in vivo, supporting the role of the ECM in neural development.
Competing Interests: Declaration of interests None.
(Copyright © 2024 International Society of Differentiation. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE