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  • Title: Temporal patterns of the embryonic intermediate filaments nestin and vimentin expression in the cerebral cortex of adult rats after cryoinjury.
    Author: Moon C, Ahn M, Kim S, Jin JK, Sim KB, Kim HM, Lee MY, Shin T.
    Journal: Brain Res; 2004 Dec 03; 1028(2):238-42. PubMed ID: 15527750.
    Abstract:
    The expression of two embryonic intermediate filaments, nestin and vimentin, in the rat brain at days 0 (control), 1, 4, 7 and 14 post-cryoinjury was studied to elucidate their roles in brain injury. Western blot analysis showed that both nestin and vimentin expressions in the ipsilateral cerebral cortex were significantly increased at 4 and 7 days post-cryoinjury, and were decreased at day 14 after cryoinjury. Immunohistochemistry showed that there were few nestin- and vimentin-positive cells in the cerebral cortex in normal controls. On days 4 and 7 post-injury, abundant glial cells in the periphery of the lesion were immunostained for nestin and/or vimentin; only vimentin was detected in the majority of inflammatory cells in the core lesion. These findings suggest that nestin and vimentin contribute to the repair of brain injury through the migration of activated cells and the formation of a glial scar.
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