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Positivity to glial fibrillary acidic protein in bone, cartilage, and chordoma
Author(s) -
Kasantikul Vira,
Shuangshoti Samruay
Publication year - 1989
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.2930410109
Subject(s) - glial fibrillary acidic protein , medicine , chordoma , cartilage , pathology , anatomy , immunohistochemistry
Twenty vertebral bones, 11 costal, 11 epiglottic, six tracheal, and five bronchial cartilages and seven chordomas were evaluated by the application of peroxidase‐antiperoxidase (PAP) indirect immunohistochemical method for localization of glial fibrillary acidic protein (GFAP). Positive immunostaining for GFAP was observed in osteocytes of normal bone (13/20), chondrocytes of normal epiglottis (5/11), costal cartilage (3/11), trachea (2/6), and bronchus (4/5). Four of seven chordomas had neoplastic cells that exhibited cytoplasmic positivity to GFAP. These findings suggested that osteocytes, chondrocytes, and chordoma cells have cytoskeletal intermediate filaments that are antigenically identical to or similar to or associated with GFAP.