title: Differentiation of Langerhans cells from interdigitating cells using CD1a and S-100 protein antibodies.
abstract: The present study shows that Langerhans cells can be differentiated from interdigitating cells at the light microscopic level. Superficial lymph nodes and skin taken from necropsies and the lymph nodes of dermatopathic lymphadenopathy (DPL) were used for this experiment. Sections of lymph node and skin were embedded using the acetone, methyl benzoate and xylene (AMeX) method and dendritic cells were immunostained with anti S-100 protein antibody (S-100, and OKT-6 (CD1a) using the restaining method. Langerhans cells in the skin were positive for both CD1a and S-100. Dendritic cells positive for both CD1a and S-100, and dendritic cells positive for S-100, but not for CD1a were observed in superficial lymph nodes. In normal superficial lymph nodes, there were more interdigitating cells than Langerhans cells. The majority of the dendritic cells in the DPL were Langerhans cells. We conclude that the S-100 and CD1a positive cells are Langerhans cells, and the S-100 positive-CD1a negative cells are interdigitating cells.
authors.affiliation: Division of Pathological Cytology, Fujita Health University, Aichi, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Shinzato
authors.forename: M
authors.initials: M
authors.lastname: Shamoto
authors.forename: S
authors.initials: S
authors.lastname: Hosokawa
authors.forename: C
authors.initials: C
authors.lastname: Kaneko
authors.forename: A
authors.initials: A
authors.lastname: Osada
authors.forename: M
authors.initials: M
authors.lastname: Shimizu
authors.forename: A
authors.initials: A
authors.lastname: Yoshida
mesh_terms: D018949:Antigens, CD1 / Q000032:analysis*; D015415:Biomarkers; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007801:Langerhans Cells / Q000166:cytology / Q000378:metabolism*; D008198:Lymph Nodes / Q000378:metabolism / Q000473:pathology*; D008206:Lymphatic Diseases / Q000378:metabolism / Q000473:pathology; D009418:S100 Proteins / Q000032:analysis*; D012867:Skin / Q000166:cytology / Q000378:metabolism*
chemical_list: D018949:Antigens, CD1; D015415:Biomarkers; D009418:S100 Proteins