title: Gamma/delta T cell antigen receptors expressed on tumor-infiltrating lymphocytes from patients with solid tumors.
abstract: The expression of gamma/delta T cell antigen receptors (TcR) in T cell lines or clones derived from tumor-infiltrating lymphocytes (TIL) from patients with solid tumors was investigated. gamma/delta TcR T cell lines were derived from TIL from patients with Wilms tumor, sarcoma or metastatic melanoma by stimulation with autologous tumor cells alone and recombinant interleukin 2 and they exhibited nonspecific cytotoxicity against autologous and allogeneic tumor cells, or cells of the K562 or the MEL21 tumor cell lines. Two T cell lines were derived from a patient with Wilms tumor. One of them expressed a non-disulfide-linked gamma/delta TcR using the 60-kDa gamma chain, whereas, the other expressed a disulfide-linked gamma/delta TcR. A T cell line was derived from a patient with sarcoma and expressed a disulfide-linked gamma/delta TcR, whereas, a T cell line derived from a patient with melanoma expressed a non-disulfide-linked gamma chain of 62 kDa. Several T cell clones were developed from patients with metastatic melanoma or Wilms tumor and expressed either disulfide- or non-disulfide-linked gamma/delta TcR. Northern analysis of RNA from certain of these clones revealed a full-length gamma chain transcript, whereas, the alpha or beta chain transcripts were either absent or truncated. These T cell clones exhibited nonspecific cytotoxicity. Both disulfide- and non-disulfide-linked TIL T cell lines and clones expressed the delta TCS1 determinant. gamma/delta TcR+ cells in freshly prepared TIL from these patients were present in low proportions (less than 5%) and their delta TCS1/delta 1 ratios were within the range observed in the peripheral blood of normal donors. These results demonstrate that both disulfide- and non-disulfide-linked gamma/delta TcR are expressed on T cell lines and clones derived from TIL from solid tumors. Non-disulfide-linked gamma/delta TcR using the 56-66-kDa gamma chain are frequently found on TIL-derived T cell lines and clones. These 56-66-kDa gamma chains are rarely expressed on T cell lines or clones derived from peripheral blood lymphocytes of normal donors.
authors.affiliation: Department of Immunology, University of Texas, M. D. Anderson Cancer Center, Houston 77030.
authors.forename: M
authors.initials: M
authors.lastname: Nanno
authors.forename: H
authors.initials: H
authors.lastname: Seki
authors.forename: G
authors.initials: G
authors.lastname: Mathioudakis
authors.forename: R
authors.initials: R
authors.lastname: Suzuki
authors.forename: K
authors.initials: K
authors.lastname: Itoh
authors.forename: C G
authors.initials: CG
authors.lastname: Ioannides
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: P F
authors.initials: PF
authors.lastname: Chen
authors.forename: C D
authors.initials: CD
authors.lastname: Platsoucas
mesh_terms: D002460:Cell Line; D002999:Clone Cells; D003602:Cytotoxicity, Immunologic; D006801:Humans; D007680:Kidney Neoplasms / Q000276:immunology; D016246:Lymphocytes, Tumor-Infiltrating / Q000276:immunology*; D008545:Melanoma / Q000276:immunology; D009369:Neoplasms / Q000276:immunology*; D016692:Receptors, Antigen, T-Cell, gamma-delta / Q000032:analysis*; D012509:Sarcoma / Q000276:immunology; D009396:Wilms Tumor / Q000276:immunology
chemical_list: D016692:Receptors, Antigen, T-Cell, gamma-delta