title: Murine epidermal Langerhans cells and splenic dendritic cells present tumor-associated antigens to primed T cells.
abstract: We examined the ability of epidermal Langerhans cells and splenic dendritic cells to present tumor-associated antigens (Ag) to immune T cells. Methylcholanthrene (MCA)-induced subcutaneous fibrosarcomas derived from C57BL/6 mice were used as tumor models. Our data demonstrate that both murine Langerhans cells and splenic dendritic cells have the capacity to present tumor-associated Ag to primed T cells. We found that variously treated tumor preparations (irradiated viable tumor cells, irradiated frozen-stored tumor cells, mitomycin C-treated viable tumor cells, and snap freeze-thawed tumor cell lysates) can be utilized for tumor Ag-pulsing. Primed CD4+ T cells demonstrated in vitro specificity towards their respective tumors and did not cross-react to other syngeneic MCA-induced or non-MCA-induced tumors. The T cell proliferative response critically depended on the presence of immune CD4+ T cells. We discuss the implications of these findings for the adoptive immunotherapy of cancer using immune CD4+ T cells.
authors.affiliation: Dermatology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: P J
authors.initials: PJ
authors.lastname: Cohen
authors.forename: P A
authors.initials: PA
authors.lastname: Cohen
authors.forename: S A
authors.initials: SA
authors.lastname: Rosenberg
authors.forename: S I
authors.initials: SI
authors.lastname: Katz
authors.forename: J J
authors.initials: JJ
authors.lastname: Mulé
mesh_terms: D000818:Animals; D000938:Antigen-Presenting Cells / Q000276:immunology*; D000951:Antigens, Neoplasm / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology*; D003713:Dendritic Cells / Q000276:immunology*; D004817:Epidermis / Q000276:immunology; D005260:Female; D007156:Immunologic Memory; D007801:Langerhans Cells / Q000276:immunology*; D008213:Lymphocyte Activation; D051379:Mice; D008810:Mice, Inbred C57BL; D009374:Neoplasms, Experimental / Q000276:immunology; D013154:Spleen / Q000276:immunology
chemical_list: D000951:Antigens, Neoplasm