title: [The place of dendritic cells in the microenviroment in Hodgkin's lymphoma].
abstract: Dendritic cells (DCs) are the least studied microenvironment elements in Hodgkin's lymphoma (HL). Ninety-five lymph nodes were morphologically and immunohistochemically studied in patients with classical HL. The authors found CDla- and langerin-positive DCs in the presence of T lymphocytes, which were localized in the close proximity to neoplastic Reed-Sternberg cells (RSCs). There were also CD23-positive follicular DCs, which were typically located at the periphery of tumor foci, in the areas of residual follicular structures, were surrounded by B lymphocytes and were rarely associated with RSCs. There were two morphologically distinct groups among the CD 1a- and langerin-positive DCs; one had developed cytoplasmic processes, which formed a network around the RSCs (probably a more mature/functionally active form); the other had round cells with short cytoplasmic processes, loosely distributed around the neoplastic cells (a less mature/active form). The function and role of CD1a- and langerin-positive DCs in HL call for further investigation. The topographic closeness of these DCs to RSCs suggests that these cells play a considerable role in the pathogenesis of HL.
authors.forename: E E
authors.initials: EE
authors.lastname: Leenman
authors.forename: M S
authors.initials: MS
authors.lastname: Mukhina
authors.forename: M M
authors.initials: MM
authors.lastname: Girshovich
authors.forename: S V
authors.initials: SV
authors.lastname: Kanaev
authors.forename: S N
authors.initials: SN
authors.lastname: Konoplev
authors.forename: K M
authors.initials: KM
authors.lastname: Pozharisskiĭ
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015703:Antigens, CD / Q000276:immunology; D018949:Antigens, CD1 / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology / Q000473:pathology; D003713:Dendritic Cells / Q000276:immunology / Q000473:pathology; D020566:Dendritic Cells, Follicular / Q000276:immunology / Q000473:pathology; D005260:Female; D006689:Hodgkin Disease / Q000276:immunology / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods; D037181:Lectins, C-Type / Q000276:immunology; D008198:Lymph Nodes / Q000276:immunology / Q000473:pathology; D008297:Male; D037241:Mannose-Binding Lectins / Q000276:immunology; D008875:Middle Aged; D017455:Receptors, IgE / Q000276:immunology; D016539:Reed-Sternberg Cells / Q000276:immunology / Q000473:pathology; D012189:Retrospective Studies; D013601:T-Lymphocytes / Q000276:immunology / Q000473:pathology
chemical_list: D015703:Antigens, CD; D018949:Antigens, CD1; C419393:CD1a antigen; C121916:CD207 protein, human; D037181:Lectins, C-Type; D037241:Mannose-Binding Lectins; D017455:Receptors, IgE