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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.
Oligodendrocytes: Oligodendrocytes are cells that coat axons in the CNS with their cell membrane, forming a specialized membrane differentiation called myelin, producing the myelin sheath. The myelin sheath provides insulation to the axon that allows electrical signals to propagate more efficiently. [14] CNS: Ependymal cells
The myelin sheath that surrounds and protects nerve cells is made by cells called oligodendrocytes. In a person with MS, these cells are lost, so damaged myelin sheaths cannot be repaired.
Cell bodies of neurons are in yellow (Their axons are surrounded by myelin, produced by oligodendrocytes). Cellular extensions also known as cytoplasmic protrusions and cytoplasmic processes are those structures that project from different cells , in the body, or in other organisms.
Oligodendrocyte progenitor cell; Pituicyte (posterior pituitary) Pineal gland ... PP cell (F cell, gamma cell) Delta cell; Epsilon cell; Pharyngeal pouch.
Following the loss of SST inhibitory neurons, the authors noted that there was an increase in inflammatory cells called microglia and astrocytes, as well as a loss of oligodendrocytes.
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.
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