title: Tumour rejection by gene transfer of 4-1BB ligand into a CD80(+) murine squamous cell carcinoma and the requirements of co-stimulatory molecules on tumour and host cells.
abstract: NRS1 is a murine squamous cell carcinoma that constitutively expresses the co-stimulatory molecule CD80 at a high level yet grows as a tumour in syngeneic C3H mice. We examined the effect of gene transfer of the 4-1BB ligand (4-1BBL) into NRS1 cells. Introduction of the 4-1BBL gene efficiently elicited anti-tumour immune responses in syngeneic mice which acquired specific immunity against wild-type tumour. T-cell depletion studies showed that CD8(+), but not CD4(+) T cells were essential for tumour eradication. Our results suggest that the transduced 4-1BBL is more effective than the spontaneously expressed CD80 for generation of primary anti-tumour CD8(+) T-cell responses. In addition to CD80 and CD86, the host-derived 4-1BBL is also involved in the secondary anti-tumour responses. This study indicates the complicated contribution of 4-1BBL, CD80 and CD86 on tumour and host cells in anti-tumour immune responses and a possible therapeutic application of 4-1BBL for human tumour vaccination and gene therapy.
authors: Department of Immunology, National Children's Medical Research Center, Tokyo, Japan.
authors: S
authors: S
authors: Mogi
authors: J
authors: J
authors: Sakurai
authors: T
authors: T
authors: Kohsaka
authors: S
authors: S
authors: Enomoto
authors: H
authors: H
authors: Yagita
authors: K
authors: K
authors: Okumura
authors: M
authors: M
authors: Azuma
mesh_terms: D053330:4-1BB Ligand; D000818:Animals; D015703:Antigens, CD / Q000276:immunology; D000951:Antigens, Neoplasm / Q000276:immunology; D018122:B7-1 Antigen / Q000276:immunology*; D051940:B7-2 Antigen; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D002294:Carcinoma, Squamous Cell / Q000276:immunology* / Q000473:pathology / Q000628:therapy; D005260:Female; D018014:Gene Transfer Techniques; D006084:Graft Rejection / Q000276:immunology*; D008024:Ligands; D008562:Membrane Glycoproteins / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008819:Mice, Nude; D009368:Neoplasm Transplantation; D014161:Transduction, Genetic; D014162:Transfection; D014407:Tumor Cells, Cultured; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000276:immunology*
chemical_list: D053330:4-1BB Ligand; D015703:Antigens, CD; D000951:Antigens, Neoplasm; D018122:B7-1 Antigen; D051940:B7-2 Antigen; C497965:Cd86 protein, mouse; D008024:Ligands; D008562:Membrane Glycoproteins; C505974:TNFSF9 protein, human; C505975:Tnfsf9 protein, mouse; D014409:Tumor Necrosis Factor-alpha