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    Keywords: CELLS ; tumor ; CELL ; Germany ; MICROSCOPY ; DIAGNOSIS ; NEW-YORK ; PROTEIN ; PROTEINS ; ADHESION MOLECULES ; cell line ; COMPONENTS ; CONSTITUTIVE TRANSMEMBRANE GLYCOPROTEIN ; CULTURED-CELLS ; DESMOCOLLIN ; desmoplakin ; desmosome ; DIFFERENTIATION ; EPITHELIA ; HUMAN PLAKOGLOBIN ; INTERMEDIATE-SIZED FILAMENTS ; meninges,meningioma,desmosome,desmocollin 3 ; meningioma ; MOLECULAR CHARACTERIZATION ; MOLECULES ; MONOCLONAL-ANTIBODY ; MR-165000 DESMOGLEIN ; NON-EPIDERMAL DESMOSOMES ; PLAQUE PROTEIN ; SUBDURAL SPACE ; TISSUE ; TUMORS
    Abstract: Intercellular junctions morphologically identical to epithelial desmosomes are known structures in meningiomas and arachnoidal tissue. Desmoplakin as one of the desmosomal plaque components has proven to be a reliable marker for diagnosis of meningeal tumors. Here we demonstrate by immunofluorescence microscopy, immunoblot and reverse transcription-PCR reactions that cells of arachnoidal tissue, of diverse meningioma subtypes and of a meningioma-derived cell line contain the full complement of the typical desmosomal proteins desmoplakin (DP), plakophilin 2 (PP2), desmocollin 2 (Dsc2) and desmoglein 2 (Dsg2). Consequently, all these molecules are suitable for diagnostic applications of meningioma tumors. In addition to these constitutive desmosomal components, representative for single-layered (simple) epithelia, the dural border cells of the arachnoid and about 60% of the meningiomas tested were positive for desmocollin 3 (Dsc3), a protein in epithelia taken as an indicator for differentiation
    Type of Publication: Journal article published
    PubMed ID: 12845453
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