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The common cytokine receptor gamma chain controls survival of gamma/delta T cells. 1997

M Malissen, and P Pereira, and D J Gerber, and B Malissen, and J P DiSanto
Centre d'Immunologie Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique de Marseille Luminy, France.

We have investigated the role of common gamma chain (gamma c)-signaling pathways for the development of T cell receptor for antigen (TCR)-gamma/delta T cells. TCR-gamma/delta-bearing cells were absent from the adult thymus, spleen, and skin of gamma c-deficient (gamma c-) mice, whereas small numbers of thymocytes expressing low levels of TCR-gamma/delta were detected during fetal life. Recent reports have suggested that signaling via interleukin (IL)-7 plays a major role in facilitating TCR-gamma/delta development through induction of V-J (variable-joining) rearrangements at the TCR-gamma locus. In contrast, we detected clearly TCR-gamma rearrangements in fetal thymi from gamma c- mice (which fail to signal in response to IL-7) and reduced TCR-gamma rearrangements in adult gamma c thymi. No gross defects in TCR-delta or TCR-beta rearrangements were observed in gamma c- mice of any age. Introduction of productively rearranged TCR V gamma 1 or TCR V gamma 1/V delta 6 transgenes onto mice bearing the gamma c mutation did not restore TCR-gamma/delta development to normal levels suggesting that gamma c-dependent pathways provide additional signals to developing gamma/delta T cells other than for the recombination process. Bcl-2 levels in transgenic thymocytes from gamma c- mice were dramatically reduced compared to gamma c+ transgenic littermates. We favor the concept that gamma c-dependent receptors are required for the maintenance of TCR-gamma/delta cells and contribute to the completion of TCR-gamma rearrangements primarily by promoting survival of cells committed to the TCR-gamma/delta lineage.

UI MeSH Term Description Entries
D008231 Lymphopenia Reduction in the number of lymphocytes. Lymphocytopenia,Lymphocytopenias,Lymphopenias
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
D008817 Mice, Mutant Strains Mice bearing mutant genes which are phenotypically expressed in the animals. Mouse, Mutant Strain,Mutant Mouse Strain,Mutant Strain of Mouse,Mutant Strains of Mice,Mice Mutant Strain,Mice Mutant Strains,Mouse Mutant Strain,Mouse Mutant Strains,Mouse Strain, Mutant,Mouse Strains, Mutant,Mutant Mouse Strains,Mutant Strain Mouse,Mutant Strains Mice,Strain Mouse, Mutant,Strain, Mutant Mouse,Strains Mice, Mutant,Strains, Mutant 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
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
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
D015334 Gene Rearrangement, gamma-Chain T-Cell Antigen Receptor Ordered rearrangement of T-cell variable gene regions coding for the gamma-chain of antigen receptors. T-Cell Antigen Receptor gamma-Chain Gene Rearrangement,T-Lymphocyte Antigen Receptor gamma-Chain Gene Rearrangement,Gene Rearrangement, gamma-Chain T Cell Antigen Receptor,T Cell gamma-Chain Gene Rearrangement,T Lymphocyte gamma-Chain Gene Rearrangement,Gene Rearrangement, gamma Chain T Cell Antigen Receptor,T Cell Antigen Receptor gamma Chain Gene Rearrangement,T Cell gamma Chain Gene Rearrangement,T Lymphocyte Antigen Receptor gamma Chain Gene Rearrangement,T Lymphocyte gamma Chain Gene Rearrangement
D016176 T-Lymphocyte Subsets A classification of T-lymphocytes, especially into helper/inducer, suppressor/effector, and cytotoxic subsets, based on structurally or functionally different populations of cells. T-Cell Subset,T-Cell Subsets,T-Lymphocyte Subset,Subset, T-Cell,Subset, T-Lymphocyte,Subsets, T-Cell,Subsets, T-Lymphocyte,T Cell Subset,T Cell Subsets,T Lymphocyte Subset,T Lymphocyte Subsets
D016692 Receptors, Antigen, T-Cell, gamma-delta T-cell receptors composed of CD3-associated gamma and delta polypeptide chains and expressed primarily in CD4-/CD8- T-cells. The receptors appear to be preferentially located in epithelial sites and probably play a role in the recognition of bacterial antigens. The T-cell receptor gamma/delta chains are separate and not related to the gamma and delta chains which are subunits of CD3 (see ANTIGENS, CD3). Antigen Receptors, T-Cell, gamma-delta,T-Cell Receptors delta-Chain,T-Cell Receptors gamma-Chain,T-Cell Receptors, gamma-delta,TcR gamma-delta,Antigen T Cell Receptor, delta Chain,Antigen T Cell Receptor, gamma Chain,Receptors, Antigen, T Cell, gamma delta,T Cell Receptors, gamma delta,T-Cell Receptor delta-Chain,T-Cell Receptor gamma-Chain,T-Cell Receptor, gamma-delta,T Cell Receptor delta Chain,T Cell Receptor gamma Chain,T Cell Receptor, gamma delta,T Cell Receptors delta Chain,T Cell Receptors gamma Chain,TcR gamma delta,delta-Chain, T-Cell Receptor,delta-Chain, T-Cell Receptors,gamma-Chain, T-Cell Receptor,gamma-Chain, T-Cell Receptors,gamma-delta T-Cell Receptor,gamma-delta T-Cell Receptors,gamma-delta, TcR
D016694 Gene Rearrangement, delta-Chain T-Cell Antigen Receptor Ordered rearrangement of T-cell variable gene regions coding for the delta-chain of antigen receptors. T-Cell Antigen Receptor delta-Chain Gene Rearrangement,T-Lymphocyte Antigen Receptor delta-Chain Gene Rearrangement,Gene Rearrangement, delta-Chain T Cell Antigen Receptor,T Cell delta-Chain Gene Rearrangement,T Lymphocyte delta-Chain Gene Rearrangement,Gene Rearrangement, delta Chain T Cell Antigen Receptor,T Cell Antigen Receptor delta Chain Gene Rearrangement,T Cell delta Chain Gene Rearrangement,T Lymphocyte Antigen Receptor delta Chain Gene Rearrangement,T Lymphocyte delta Chain Gene Rearrangement

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