期刊
NEUROPATHOLOGY
卷 29, 期 1, 页码 31-39出版社
WILEY
DOI: 10.1111/j.1440-1789.2008.00936.x
关键词
GFAP delta; glia limitans; gliomas; gliosis; intermediate filaments
Neuropathological analysis of cellular mechanisms underlying gliosis and brain tumors is slowed by the lack of markers allowing to distinguish glial subpopulations in normal or pathological human brains. We therefore evaluated GFAP delta immunostaining in a wide panel of astrogliosis and gliomas, and compared these with GFAP and vimentin. In normal tissue, gliosis and gliomas, GFAP delta immunostaining was observed in astrocytes with relatively high GFAP levels. GFAP delta immunostaining was most conspicuous in glia limitans astrocytes. In Chaslin's gliosis accompanying chronic epilepsy, GFAP delta immunostaining evidenced the glia limitans reactive astrocytes as the source of the dense fibrillary meshwork typical of Chaslin's gliosis. Interestingly GFAP delta and vimentin immunostainings coincided in normal tissues and gliosis, but not in gliomas. Altogether these results show that combined GFAP, GFAP delta and vimentin labelling reveals fine gliofilament regulation in normal and pathological brain.
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