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J Neuroimmunol. 1985 Jun;8(4-6):283-92.

Regulation of glial fibrillary acidic protein (GFAP) expression in CNS development and in pathological states.


Studies that have described changes in glial fibrillary acidic protein (GFAP) expression during CNS development and during pathological reactions are summarized. We describe our own studies examining GFAP expression in vitro. In primary cultures established from newborn rat forebrain and maintained in the presence of serum, GFAP expression is first observed in cells from the subventricular germinal zone. Glial precursor cells, at an uncommitted stage, can be induced by serum to begin GFAP synthesis. In astrocytes already established in culture, GFAP synthesis can be further increased by dibutyryl cyclic AMP (dbcAMP). By labelling astrocytes with radioactive methionine, we demonstrate increases of GFAP and vimentin synthesis within 48 h of exposure to dbcAMP. Continuous exposure results in a gradual rise in the cellular level of GFAP.

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