The Initial Myelination in the Central Nervous System

Myelination contributes not only to the rapid nerve conduction but also to axonal insulation and protection. In the central nervous system (CNS), the initial myelination features a multistep process where oligodendrocyte precursor cells undergo proliferation and migration before differentiating into...

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Main Authors: Qiang Yu, Teng Guan, Ying Guo, Jiming Kong
Format: Article
Language:English
Published: SAGE Publishing 2023-03-01
Series:ASN Neuro
Online Access:https://doi.org/10.1177/17590914231163039
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author Qiang Yu
Teng Guan
Ying Guo
Jiming Kong
author_facet Qiang Yu
Teng Guan
Ying Guo
Jiming Kong
author_sort Qiang Yu
collection DOAJ
description Myelination contributes not only to the rapid nerve conduction but also to axonal insulation and protection. In the central nervous system (CNS), the initial myelination features a multistep process where oligodendrocyte precursor cells undergo proliferation and migration before differentiating into mature oligodendrocytes. Mature oligodendrocytes then extend processes and wrap around axons to form the multilayered myelin sheath. These steps are tightly regulated by various cellular and molecular mechanisms, such as transcription factors (Olig family, Sox family), growth factors (PDGF, BDNF, FGF-2, IGF), chemokines/cytokines (TGF-β, IL-1β, TNFα, IL-6, IFN-γ), hormones (T3), axonal signals (PSA-NCAM, L1-CAM, LINGO-1, neural activity), and intracellular signaling pathways (Wnt/β-catenin, PI3 K/AKT/mTOR, ERK/MAPK). However, the fundamental mechanisms for initial myelination are yet to be fully elucidated. Identifying pivotal mechanisms for myelination onset, development, and repair will become the focus of future studies. This review focuses on the current understanding of how CNS myelination is initiated and also the regulatory mechanisms underlying the process.
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spelling doaj.art-27bd27ea2ea14d8fb660694ff91410c12023-03-28T09:03:41ZengSAGE PublishingASN Neuro1759-09142023-03-011510.1177/17590914231163039The Initial Myelination in the Central Nervous SystemQiang Yu0Teng Guan1Ying Guo2Jiming Kong3 Department of Human Anatomy and Cell Science, , Winnipeg, Manitoba, Canada Department of Human Anatomy and Cell Science, , Winnipeg, Manitoba, Canada Department of Forensic Medicine, , Zhangjiakou, Hebei, China Department of Human Anatomy and Cell Science, , Winnipeg, Manitoba, CanadaMyelination contributes not only to the rapid nerve conduction but also to axonal insulation and protection. In the central nervous system (CNS), the initial myelination features a multistep process where oligodendrocyte precursor cells undergo proliferation and migration before differentiating into mature oligodendrocytes. Mature oligodendrocytes then extend processes and wrap around axons to form the multilayered myelin sheath. These steps are tightly regulated by various cellular and molecular mechanisms, such as transcription factors (Olig family, Sox family), growth factors (PDGF, BDNF, FGF-2, IGF), chemokines/cytokines (TGF-β, IL-1β, TNFα, IL-6, IFN-γ), hormones (T3), axonal signals (PSA-NCAM, L1-CAM, LINGO-1, neural activity), and intracellular signaling pathways (Wnt/β-catenin, PI3 K/AKT/mTOR, ERK/MAPK). However, the fundamental mechanisms for initial myelination are yet to be fully elucidated. Identifying pivotal mechanisms for myelination onset, development, and repair will become the focus of future studies. This review focuses on the current understanding of how CNS myelination is initiated and also the regulatory mechanisms underlying the process.https://doi.org/10.1177/17590914231163039
spellingShingle Qiang Yu
Teng Guan
Ying Guo
Jiming Kong
The Initial Myelination in the Central Nervous System
ASN Neuro
title The Initial Myelination in the Central Nervous System
title_full The Initial Myelination in the Central Nervous System
title_fullStr The Initial Myelination in the Central Nervous System
title_full_unstemmed The Initial Myelination in the Central Nervous System
title_short The Initial Myelination in the Central Nervous System
title_sort initial myelination in the central nervous system
url https://doi.org/10.1177/17590914231163039
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