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Nogo-A expression in the intact and injured nervous system

Hunt, D; Coffin, RS; Prinjha, RK; Campbell, G; Anderson, PN; (2003) Nogo-A expression in the intact and injured nervous system. MOL CELL NEUROSCI , 24 (4) 1083 - 1102. 10.1016/j.mcn.2003.09.002.

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Abstract

The expression of Nogo-A mRNA and protein in the nervous system of adult rats and cultured neurons was studied by in situ hybridisation and immunohistochemistry. Nogo-A mRNA was expressed by many cells in unoperated animals, including spinal motor, DRG, and sympathetic neurons, retinal ganglion cells, and neocortical, hippocampal, and Purkinje neurons. Nogo-A protein was strongly expressed by presumptive oligodendrocytes, but not by NG2+glia and was abundant in motor, DRG, and sympathetic neurons, retinal ganglion cells, and many Purkinje cells, but was difficult to detect in dentate gyrus neurons and some neocortical neurons. Cultured fetal mouse neocortical neurons and adult rat DRG neurons strongly expressed Nogo-A in their perikarya, growth cones, and axonal varicosities. All axons in the intact sciatic nerve contained Nogo-A and many but not all regenerating axons were strongly Nogo-A immunopositive after sciatic nerve transection. Ectopic muscle fibres that developed among the regenerating axons were also Nogo-A immunopositive. Following injury to the spinal cord, Nogo-A mRNA was upregulated around the lesion and Nogo-A protein was strongly expressed in injured dorsal column fibres and their sprouts which entered the lesion site. Following optic nerve crush, Nogo-A accumulated in the proximal and distal stumps bordering the lesions. (C) 2003 Elsevier Inc. All rights reserved.

Type: Article
Title: Nogo-A expression in the intact and injured nervous system
DOI: 10.1016/j.mcn.2003.09.002
Keywords: MESSENGER-RNA EXPRESSION, RAT CEREBELLAR CORTEX, DORSAL COLUMN AXONS, SPINAL-CORD-INJURY, NEURITE GROWTH, OUTGROWTH INHIBITOR, PROTEIN EXPRESSION, SCHWANN-CELLS, UP-REGULATION, SCAR TISSUE
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Cell and Developmental Biology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Infection and Immunity
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > UCL Medical School
URI: http://discovery.ucl.ac.uk/id/eprint/10214
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