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The immunohistochemical application of three anti-GFAP monoclonal antibodies to formalin-fixed, paraffin-embedded, normal and neoplastic brain tissues.
The intermediate filament, glial fibrillary acidic protein (GFAP) has proven to be an important glial marker in diagnostic neuropathology. We report the histochemical application of three monoclonal antibodies (Mab) produced in this laboratory, 1B4, 2E1, and 4A11, which are monospecific to GFAP by radioimmunoassay, immunoblot electrophoresis, and immunoperoxidase histochemistry. The goal of this study was to compare the specificity and sensitivity of these Mab to GFAP on surgical brain biopsy specimens which had been routinely processed for diagnostic neuropathology with that of a high titer, highly specific, reference polyvalent anti-GFAP antiserum. The Mab stained astrocytes specifically in normal brain. When combined in a "cocktail" preparation, the quality of the immunoperoxidase detection of GFAP by these Mab closely approached that of the reference serum in 71 intracranial and intraspinal neoplasms. As these three Mab represent a continuous supply of a well defined, monospecific reagent, the monoclonal "cocktail" represents a standard reagent for large multi-institutional studies and for studies extending over a period of time.
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Related Subject Headings
- Trypsin
- Tissue Distribution
- Neurology & Neurosurgery
- Immunochemistry
- Immune Sera
- Humans
- Histological Techniques
- Histocytochemistry
- Glial Fibrillary Acidic Protein
- Central Nervous System
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![Journal cover image](https://secure.syndetics.com/index.aspx?isbn=/lc.gif&issn=0022-3069&client=dukeuniv)
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Trypsin
- Tissue Distribution
- Neurology & Neurosurgery
- Immunochemistry
- Immune Sera
- Humans
- Histological Techniques
- Histocytochemistry
- Glial Fibrillary Acidic Protein
- Central Nervous System