Oligodendroglial primary cilium heterogeneity during development and demyelination/remyelination

• Published in: Frontiers in cellular neuroscience Vol. 16; p. 1049468
• Main Authors: Delfino, Giada, Bénardais, Karelle, Graff, Julien, Samama, Brigitte, Antal, Maria Cristina, Ghandour, M Said, Boehm, Nelly
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Research Foundation 24-11-2022; Frontiers Media S.A
• Subjects: Ablation; Animals; Antibodies; Cell culture; Cell differentiation; Cell proliferation; Central nervous system; Chloral hydrate; demyelinating diseases; Demyelination; development; Forskolin; Glial stem cells; Laboratories; Lithium; Lithium chloride; Localization; Mental disorders; Myelination; Neuroscience; Oligodendrocytes; OPCs; primary cilium; Signal transduction; Therapeutic targets; France; myelination; development; primary cilium; OPCs; demyelinating diseases
• ISSN: 1662-5102; 1662-5102
• DOI: 10.3389/fncel.2022.1049468

The primary cilium (PC) has emerged as an indispensable cellular antenna essential for signal transduction of important cell signaling pathways. The rapid acquisition of knowledge about PC biology has raised attention to PC as a therapeutic target in some neurological and psychiatric diseases. However, the role of PC in oligodendrocytes and its participation in myelination/remyelination remain poorly understood. Oligodendrocyte precursor cells (OPCs) give rise to oligodendrocytes during central nervous system (CNS) development. In adult, a small percentage of OPCs remains as undifferentiated cells located sparsely in the different regions of the CNS. These cells can regenerate oligodendrocytes and participate to certain extent in remyelination. This study aims characterize PC in oligodendrocyte lineage cells during post-natal development and in a mouse model of demyelination/remyelination. We show heterogeneity in the frequency of cilium presence on OPCs, depending on culture conditions
and cerebral regions
during development and demyelination/remyelination.
, Lithium chloride (LiCl), Forskolin and Chloral Hydrate differentially affect cilium, depending on culture environment and PC length correlates with the cell differentiation state. Beside the role of PC as a keeper of cell proliferation, our results suggest its involvement in myelination/remyelination.