title: Monoclonal S-100 immunocytochemistry of pigmented naevi with tactile-like corpuscles.
abstract: We examined 12 cases of pigmented naevi with tactile-like corpuscles by immunohistochemistry using polyclonal and monoclonal antibodies against S-100 protein. Naevus cells, the tactile-like corpuscles, and the attached lamellae and fibroblastic cells gave a strong reaction with S-100 protein and the beta-subunit antibodies. The same cells gave only a weak reaction with the alpha-subunit antibody with the exception of about 4 per cent of corpuscles and 1-1.5 per cent of naevus cells, whether pigmented or not, which gave a strong reaction with this antibody. These results suggest that the non-pigmented naevus cells and the constituent cells of the corpuscles are closely related and the latter might derive from the former by organoid differentiation.
authors.affiliation: Department of Pathology, Niigata University School of Medicine, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Suzuki
authors.forename: Y
authors.initials: Y
authors.lastname: Ajioka
authors.forename: S
authors.initials: S
authors.lastname: Kogure
mesh_terms: D000328:Adult; D000911:Antibodies, Monoclonal; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D008297:Male; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000032:analysis* / Q000473:pathology; D009418:S100 Proteins / Q000032:analysis*; D012878:Skin Neoplasms / Q000032:analysis* / Q000473:pathology
chemical_list: D000911:Antibodies, Monoclonal; D009418:S100 Proteins