title: Lectin histochemistry of laryngeal squamous cell carcinomas.
abstract: A panel of five biotinylated lectins was applied to study the presence and distribution of membrane carbohydrate residues in the normal laryngeal epithelium and in laryngeal squamous cell carcinomas (SCCs) of 86 patients with the avidin-biotin peroxidase complex technique. The lectin-binding pattern of well-differentiated SCCs was comparable to that of the spinous cells of the normal laryngeal epithelium. In the less differentiated SCCs, staining of the keratinocyte plasma membrane with lectins was either reduced or absent, indicating a decline in the glycosylation of cell surface glycoconjugates. The lectins applied here could be used in the rapid assessment of less-differentiated areas within a laryngeal SCC, but they cannot be regarded as reliable markers of laryngeal keratinocytes undergoing malignant transformation.
authors.affiliation: Department of Dermatology, University of Patras, Rio-Patras, Greece.
authors.forename: D
authors.initials: D
authors.lastname: Tsambaos
authors.forename: E
authors.initials: E
authors.lastname: Pasmatzi
authors.forename: L
authors.initials: L
authors.lastname: Manolopoulos
authors.forename: N
authors.initials: N
authors.lastname: Kapranos
authors.forename: P
authors.initials: P
authors.lastname: Goumas
authors.forename: G
authors.initials: G
authors.lastname: Adamopoulos
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology; D002462:Cell Membrane; D002471:Cell Transformation, Neoplastic; D004848:Epithelium / Q000378:metabolism; D006801:Humans; D007124:Immunoenzyme Techniques; D007822:Laryngeal Neoplasms / Q000378:metabolism* / Q000473:pathology; D007830:Larynx / Q000166:cytology / Q000378:metabolism; D037102:Lectins / Q000378:metabolism*; D008875:Middle Aged; D009367:Neoplasm Staging; D011485:Protein Binding
chemical_list: D014408:Biomarkers, Tumor; D037102:Lectins