Membranous expression of carcinoembryonic antigen (CEA) in the normal cervical squamous mucosa
| Autor: | D. M. Milne, David S Sanders, S. C. Stocks, G. Milne, M. A. Kerr, D. Hopwood |
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| Rok vydání: | 1992 |
| Předmět: |
Pathology
medicine.medical_specialty medicine.drug_class Immunoblotting Cervix Uteri Monoclonal antibody Pathology and Forensic Medicine Cell membrane Glycocalyx Carcinoembryonic antigen Antigen medicine Humans Microscopy Immunoelectron neoplasms chemistry.chemical_classification Mucous Membrane biology Cell Membrane Immunogold labelling Immunohistochemistry digestive system diseases Carcinoembryonic Antigen medicine.anatomical_structure chemistry Polyclonal antibodies biology.protein Female Glycoprotein |
| Zdroj: | The Journal of pathology. 167(1) |
| ISSN: | 0022-3417 |
| Popis: | Using a panel of polyclonal and monoclonal antibodies to CEA-related antigens in paraffin-processed cervical biopsies, CEA and NCA expression has been demonstrated on the cell membrane of normal mature cervical squames. Cytofluorimetry of disaggregated cervical squames confirmed membranous expression and immunogold labelling of ultrathin cryostat sections localized CEA to the glycocalyx and to within cytoplasmic membrane-bound vesicles of mature squames. Immunoblotting of cervical tissue showed that most of the CEA reactivity was expressed as a glycoprotein of molecular weight around 180 k, probably CEA itself. Localization of the CEA to the cell membrane of mature cervical squames suggests a key role for these antigens in maintaining the integrity of the squamous mucosa, through the putative function of an adhesion molecule. |
| Databáze: | OpenAIRE |
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