Search results
Results From The WOW.Com Content Network
Oligodendrocytes are a type of glial cell, non-neuronal cells in the central nervous system.They arise during development from oligodendrocyte precursor cells (OPCs), [8] which can be identified by their expression of a number of antigens, including the ganglioside GD3, [9] [10] [11] the NG2 chondroitin sulfate proteoglycan, and the platelet-derived growth factor-alpha receptor subunit (PDGF ...
Oligodendrocyte progenitor cells (OPCs), also known as oligodendrocyte precursor cells, NG2-glia, O2A cells, or polydendrocytes, are a subtype of glia in the central nervous system named for their essential role as precursors to oligodendrocytes and myelin. [1] They are typically identified in the human by co-expression of PDGFRA and CSPG4.
For example, GP astrocytes are in close contact with neurons that make a neurotransmitter called dopamine in both the rat and human hypothalamus. [79] The dopamine produced by these neurons is carried to the nearby pituitary gland to inhibit the release of a hormone called prolactin from the pituitary.
Only the resident oligodendrocyte precursor cells seem to keep this ability once the nervous system matures. Glial cells are known to be capable of mitosis . By contrast, scientific understanding of whether neurons are permanently post-mitotic , [ 28 ] or capable of mitosis, [ 29 ] [ 30 ] [ 31 ] is still developing.
Myelin is formed by oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system.Therefore, the first stage of myelinogenesis is often defined as the differentiation of oligodendrocyte progenitor cells (OPCs) or Schwann cell progenitors into their mature counterparts, [4] followed by myelin formation around axons.
This page was last edited on 30 December 2024, at 15:41 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
50913 Ensembl ENSG00000205927 ENSMUSG00000039830 UniProt Q13516 Q9EQW6 RefSeq (mRNA) NM_005806 NM_016967 RefSeq (protein) NP_005797 NP_058663 Location (UCSC) Chr 21: 33.03 – 33.03 Mb Chr 16: 91.02 – 91.03 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Oligodendrocyte transcription factor (OLIG2) is a basic helix-loop-helix (bHLH) transcription factor encoded by the OLIG2 gene ...
In the CNS, oligodendrocyte progenitor cells (OPCs) differentiate into mature oligodendrocytes, which form myelin. In humans, myelination begins early in the 3rd trimester, [11] although only little myelin is present in either the CNS or the PNS at the time of birth. During infancy, myelination progresses rapidly, with increasing numbers of ...