Up-regulation of Connexin43 in the glial scar following photothrombotic ischemic injury.
Mol Cell Neurosci
; 35(1): 89-99, 2007 May.
Article
em En
| MEDLINE
| ID: mdl-17350281
ABSTRACT
Several types of CNS injury and various diseases are associated with the development of a glial scar. Astrocytes are major components of the glial scar. They are interconnected by gap junctions, with connexin43 (Cx43) being the most prominent channel protein. We applied a model of focal cerebral ischemia to study the spatio-temporal expression of glial fibrillary acidic protein, as well as of Cx43 mRNA and protein in gliotic tissue up to 60 days after injury. Reactive astrocytes enveloping the lesion up-regulated their Cx43 mRNA and protein. A band of reactive astrocytes filling in the lesion exhibited elevated Cx43 and showed a high degree of proliferation. Because of these findings, we hypothesize a role for Cx43 in glial scar formation, specifically in the proliferation of astrocytes.
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Base de dados:
MEDLINE
Assunto principal:
Isquemia Encefálica
/
Conexina 43
/
Trombose Intracraniana
/
Gliose
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Alemanha