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  • Title: Gliosis in the spinal cords of rats with experimental allergic encephalomyelitis: immunostaining of carbonic anhydrase and vimentin in reactive astrocytes.
    Author: Cammer W, Tansey FA, Brosnan CF.
    Journal: Glia; 1989; 2(4):223-30. PubMed ID: 2527821.
    Abstract:
    Spinal cord sections from rats sensitized to develop experimental allergic encephalomyelitis (EAE) were immunostained with antibodies against glial fibrillary acidic protein (GFAP), carbonic anhydrase, and vimentin, to see whether the latter two antigens could be detected in GFAP-positive reactive astrocytes. Sixteen days after sensitization (16 dpi) there was intense carbonic anhydrase immunostaining in GFAP-positive cells in the spinal cords of EAE rats, particularly in the white matter. At 13 and 20 dpi carbonic anhydrase immunostaining in astrocytes was less intense, and in the spinal cord white matter of control animals carbonic anhydrase was not detected in the few GFAP-positive cells. In the spinal cords of EAE rats vimentin immunostaining was observed in inflammatory cells and astrocytes. In the latter, GFAP and carbonic anhydrase were colocalized with vimentin. The data suggest that carbonic anhydrase expression in astrocytes is an acute response to injury and that vimentin can be detected in astrocytes, as well as inflammatory cells, as early as 16 dpi.
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