Chemokine GRO1 and the spatial and temporal regulation of oligodendrocyte precursor proliferation.
Oligodendrocyte precursor proliferation is precisely regulated spatially and temporally during development to allow optimal myelination of the central nervous system (CNS). We propose that a paracrine regulatory pathway involving the chemokine GRO1 and platelet-derived growth factor (PDGF) permit local control of precursor proliferation in the brain. GRO1, PDGF, and their receptors act synergistically to precisely regulate oligodendrocyte precursor proliferation in vitro and in vivo in the rat CNS. The nature of the paracrine regulatory loop with astrocyte and neuronal GRO1 expression in a pattern that is closely correlated with PDGF alpha R(+) oligodendrocyte precursors suggests that the GRO1/PDGF regulatory mechanism provides local control of oligodendrocyte precursor proliferation during development.
Robinson
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Department of Neurosurgery, Research Institute, University Hospitals of Cleveland, Ohio 44106, USA. shenandoah.robinson@uhhs.com
Franic
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LA
D000375:Aging / Q000502:physiology; D000818:Animals; D000831:Animals, Newborn; D001253:Astrocytes / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D001921:Brain / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism*; D001973:Bromodeoxyuridine; D002454:Cell Differentiation / Q000187:drug effects / Q000502:physiology*; D002455:Cell Division / Q000187:drug effects / Q000502:physiology*; D002478:Cells, Cultured; D002540:Cerebral Cortex / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D019743:Chemokines, CXC / Q000037:antagonists & inhibitors / Q000378:metabolism*; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D007150:Immunohistochemistry; D051379:Mice; D009474:Neurons / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D009836:Oligodendroglia / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D010982:Platelet-Derived Growth Factor / Q000378:metabolism* / Q000494:pharmacology; D013116:Spinal Cord / Q000166:cytology / Q000254:growth & development / Q000378:metabolism; D013234:Stem Cells / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*
D019743:Chemokines, CXC; D010982:Platelet-Derived Growth Factor; D001973:Bromodeoxyuridine