The fate and function of oligodendrocyte progenitor cells after traumatic spinal cord injury. 2020

Greg J Duncan, and Sohrab B Manesh, and Brett J Hilton, and Peggy Assinck, and Jason R Plemel, and Wolfram Tetzlaff
Department of Neurology, Jungers Center for Neurosciences Research, Oregon Health and Science University, Portland, Oregon.

Oligodendrocyte progenitor cells (OPCs) are the most proliferative and dispersed population of progenitor cells in the adult central nervous system, which allows these cells to rapidly respond to damage. Oligodendrocytes and myelin are lost after traumatic spinal cord injury (SCI), compromising efficient conduction and, potentially, the long-term health of axons. In response, OPCs proliferate and then differentiate into new oligodendrocytes and Schwann cells to remyelinate axons. This culminates in highly efficient remyelination following experimental SCI in which nearly all intact demyelinated axons are remyelinated in rodent models. However, myelin regeneration comprises only one role of OPCs following SCI. OPCs contribute to scar formation after SCI and restrict the regeneration of injured axons. Moreover, OPCs alter their gene expression following demyelination, express cytokines and perpetuate the immune response. Here, we review the functional contribution of myelin regeneration and other recently uncovered roles of OPCs and their progeny to repair following SCI.

UI MeSH Term Description Entries
D009186 Myelin Sheath The lipid-rich sheath surrounding AXONS in both the CENTRAL NERVOUS SYSTEMS and PERIPHERAL NERVOUS SYSTEM. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (SCHWANN CELLS in the peripheral and OLIGODENDROGLIA in the central nervous system). Deterioration of the sheath in DEMYELINATING DISEASES is a serious clinical problem. Myelin,Myelin Sheaths,Sheath, Myelin,Sheaths, Myelin
D009836 Oligodendroglia A class of large neuroglial (macroglial) cells in the central nervous system. Oligodendroglia may be called interfascicular, perivascular, or perineuronal (not the same as SATELLITE CELLS, PERINEURONAL of GANGLIA) according to their location. They form the insulating MYELIN SHEATH of axons in the central nervous system. Interfascicular Oligodendroglia,Oligodendrocytes,Perineuronal Oligodendroglia,Perineuronal Satellite Oligodendroglia Cells,Perivascular Oligodendroglia,Satellite Cells, Perineuronal, Oligodendroglia,Perineuronal Satellite Oligodendrocytes,Interfascicular Oligodendroglias,Oligodendrocyte,Oligodendrocyte, Perineuronal Satellite,Oligodendrocytes, Perineuronal Satellite,Oligodendroglia, Interfascicular,Oligodendroglia, Perineuronal,Oligodendroglia, Perivascular,Perineuronal Satellite Oligodendrocyte,Satellite Oligodendrocyte, Perineuronal,Satellite Oligodendrocytes, Perineuronal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000073637 Oligodendrocyte Precursor Cells Neuroglial cells that first appear during mid-embryogenesis in the central nervous system of mammals and give rise to OLIGODENDROCYTES. Mitotically-active populations remain through late adulthood and are capable of regenerating MYELIN lost to disease or injury. Oligodendrocyte Precursors,Oligodendrocyte Progenitor Cells,Oligodendrocyte Progenitors,Pre-Oligodendrocytes,Preoligodendrocytes,Cell, Oligodendrocyte Precursor,Cell, Oligodendrocyte Progenitor,Cells, Oligodendrocyte Precursor,Cells, Oligodendrocyte Progenitor,Oligodendrocyte Precursor,Oligodendrocyte Precursor Cell,Oligodendrocyte Progenitor,Oligodendrocyte Progenitor Cell,Pre Oligodendrocytes,Pre-Oligodendrocyte,Precursor Cell, Oligodendrocyte,Precursor Cells, Oligodendrocyte,Precursor, Oligodendrocyte,Precursors, Oligodendrocyte,Preoligodendrocyte,Progenitor Cell, Oligodendrocyte,Progenitor Cells, Oligodendrocyte,Progenitor, Oligodendrocyte,Progenitors, Oligodendrocyte
D000074586 Remyelination The reforming of the MYELIN SHEATH around AXONS following loss due to injury or DEMYELINATING DISEASES. Remyelinations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012583 Schwann Cells Neuroglial cells of the peripheral nervous system which form the insulating myelin sheaths of peripheral axons. Schwann Cell,Cell, Schwann,Cells, Schwann
D013119 Spinal Cord Injuries Penetrating and non-penetrating injuries to the spinal cord resulting from traumatic external forces (e.g., WOUNDS, GUNSHOT; WHIPLASH INJURIES; etc.). Myelopathy, Traumatic,Injuries, Spinal Cord,Post-Traumatic Myelopathy,Spinal Cord Contusion,Spinal Cord Laceration,Spinal Cord Transection,Spinal Cord Trauma,Contusion, Spinal Cord,Contusions, Spinal Cord,Cord Contusion, Spinal,Cord Contusions, Spinal,Cord Injuries, Spinal,Cord Injury, Spinal,Cord Laceration, Spinal,Cord Lacerations, Spinal,Cord Transection, Spinal,Cord Transections, Spinal,Cord Trauma, Spinal,Cord Traumas, Spinal,Injury, Spinal Cord,Laceration, Spinal Cord,Lacerations, Spinal Cord,Myelopathies, Post-Traumatic,Myelopathies, Traumatic,Myelopathy, Post-Traumatic,Post Traumatic Myelopathy,Post-Traumatic Myelopathies,Spinal Cord Contusions,Spinal Cord Injury,Spinal Cord Lacerations,Spinal Cord Transections,Spinal Cord Traumas,Transection, Spinal Cord,Transections, Spinal Cord,Trauma, Spinal Cord,Traumas, Spinal Cord,Traumatic Myelopathies,Traumatic Myelopathy

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