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Lethal murine graft-versus-host disease induced by donor gamma/delta expressing T cells with specificity for host nonclassical major histocompatibility complex class Ib antigens. 1996

B R Blazar, and P A Taylor, and A Panoskaltsis-Mortari, and T A Barrett, and J A Bluestone, and D A Vallera
Department of Pediatrics, University of Minnesota Hospital, Minneapolis 55455, USA.

Although T-cell receptor (TCR) alpha/beta expressing cells have a well-known role in graft-versus-host disease (GVHD) generation, the role of TCR gamma/delta expressing cells in this process has remained unclear. To elucidate the potential function of TCR gamma/delta cells in GVHD, we have used transgenic (Tg) H-2d mice (termed G8) that express gamma/delta heterodimers on a high proportion of peripheral T cells. In vitro, G8 Tg gamma/delta T cells proliferate to and kill C57BL/6 (B6) (H-2b) which express gene products (T10b and T22b) from the nonclassical major histocompatibility complex (MHC) class Ib H-2T region. The infusion of G8 Tg (H-2Td) TCR gamma/delta cells into lethally irradiated [900 cGy total body irradiation (TBI)] B6 (H-2b) mice resulted in the generation of lethal GVHD characterized histologically by destruction of the spleen, liver, lung, and colon. Lethal GVHD was prevented by the injection of anti-TCR gamma/delta monoclonal antibodies. Immunohistochemical analysis of B6 recipients post-bone marrow transplantation (BMT) confirmed that G8 Tg TCR gamma/delta cells infiltrated GVHD target tissues (skin, liver, colon, and lung) and were absent in recipients treated with anti-TCR gamma/delta monoclonal antibodies (MoAbs) but not anti-CD4 plus anti-CD8 MoAbs. In contrast, injection of TCR gamma/delta+ cells into irradiated (900 cGy TBI) B6.A-TIaa BoyEg mice that do not express either T10b or T22b did not induce lethal GVHD. Similarly, in a different GVHD system in which sublethal irradiation without bone marrow (BM) rescue was used, B6 but not B6.A-TIaa/BoyEg mice were found to be susceptible to TCR gamma delta+ cell mediated GVHD-induced lethality characterized by an aplasia syndrome. These results demonstrate that TCR gamma/delta cells have the capacity to cause acute lethal GVHD in mice and suggest that nonclassical MHC class Ib gene products expressed on GVHD target organs are responsible for G8 Tg TCR gamma/delta+ cell mediated lethality.

UI MeSH Term Description Entries
D007111 Immunity, Cellular Manifestations of the immune response which are mediated by antigen-sensitized T-lymphocytes via lymphokines or direct cytotoxicity. This takes place in the absence of circulating antibody or where antibody plays a subordinate role. Cell-Mediated Immunity,Cellular Immune Response,Cell Mediated Immunity,Cell-Mediated Immunities,Cellular Immune Responses,Cellular Immunities,Cellular Immunity,Immune Response, Cellular,Immune Responses, Cellular,Immunities, Cell-Mediated,Immunities, Cellular,Immunity, Cell-Mediated,Response, Cellular Immune
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D011828 Radiation Chimera An organism whose body contains cell populations of different genotypes as a result of the TRANSPLANTATION of donor cells after sufficient ionizing radiation to destroy the mature recipient's cells which would otherwise reject the donor cells. Chimera, Radiation,Chimeras, Radiation,Radiation Chimeras
D006086 Graft vs Host Disease The clinical entity characterized by anorexia, diarrhea, loss of hair, leukopenia, thrombocytopenia, growth retardation, and eventual death brought about by the GRAFT VS HOST REACTION. Graft-Versus-Host Disease,Homologous Wasting Disease,Runt Disease,Graft-vs-Host Disease,Disease, Graft-Versus-Host,Disease, Graft-vs-Host,Disease, Homologous Wasting,Disease, Runt,Diseases, Graft-Versus-Host,Diseases, Graft-vs-Host,Graft Versus Host Disease,Graft-Versus-Host Diseases,Graft-vs-Host Diseases
D006648 Histocompatibility The degree of antigenic similarity between the tissues of different individuals, which determines the acceptance or rejection of allografts. HLA Incompatibility,Histoincompatibility,Human Leukocyte Antigen Incompatibility,Immunocompatibility,Tissue Compatibility,Compatibility, Tissue,HLA Incompatibilities,Histocompatibilities,Histoincompatibilities,Immunocompatibilities,Incompatibility, HLA,Tissue Compatibilities
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D013602 T-Lymphocytes, Cytotoxic Immunized T-lymphocytes which can directly destroy appropriate target cells. These cytotoxic lymphocytes may be generated in vitro in mixed lymphocyte cultures (MLC), in vivo during a graft-versus-host (GVH) reaction, or after immunization with an allograft, tumor cell or virally transformed or chemically modified target cell. The lytic phenomenon is sometimes referred to as cell-mediated lympholysis (CML). These CD8-positive cells are distinct from NATURAL KILLER CELLS and NATURAL KILLER T-CELLS. There are two effector phenotypes: TC1 and TC2. Cell-Mediated Lympholytic Cells,Cytotoxic T Cells,Cytotoxic T Lymphocyte,Cytotoxic T-Lymphocytes,TC1 Cell,TC1 Cells,TC2 Cell,TC2 Cells,Cell Mediated Lympholytic Cells,Cell, Cell-Mediated Lympholytic,Cell, TC1,Cell, TC2,Cell-Mediated Lympholytic Cell,Cytotoxic T Cell,Cytotoxic T Lymphocytes,Cytotoxic T-Lymphocyte,Lymphocyte, Cytotoxic T,Lympholytic Cell, Cell-Mediated,Lympholytic Cells, Cell-Mediated,T Cell, Cytotoxic,T Lymphocyte, Cytotoxic,T Lymphocytes, Cytotoxic,T-Lymphocyte, Cytotoxic

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