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Stat5 synergizes with T cell receptor/antigen stimulation in the development of lymphoblastic lymphoma

  1. Author:
    Kelly, J. A.
    Spolski, R.
    Kovanen, P. E.
    Suzuki, T.
    Bollenbacher, J.
    Pise-Masison, C. A.
    Radonovich, M. F.
    Lee, S.
    Jenkins, N. A.
    Copeland, N. G.
    Morse, H. C.
    Leonard, W. J.

  2. Author Address

    NHLBI, Lab Mol Immunol, NIH, Bldg 10,Rm 7N252, Bethesda, MD 20892 USA NHLBI, Lab Mol Immunol, NIH, Bethesda, MD 20892 USA NCI, Lab Receptor Biol & Gene Express, Bethesda, MD 20892 USA NCI, Frederick Canc Res & Dev Ctr, Mouse Canc Genet Program, Frederick, MD 21702 USA NIAID, Immunopathol Lab, NIH, Rockville, MD 20852 USA Leonard WJ NHLBI, Lab Mol Immunol, NIH, Bldg 10,Rm 7N252, Bethesda, MD 20892 USA
    1. Year: 2003
  2. Journal: Journal of Experimental Medicine
    1. 198
    2. 1
    3. Pages: 79-89
  4. Type of Article: Article
  1. Abstract:

    Signal transducer and activator of transcription (STAT) proteins are latent transcription factors that mediate a wide range of actions induced by cytokines, interferons, and growth factors. We now report the development of thymic T cell lymphoblastic lymphomas in transgenic mice in which Stat5a or Stat5b is overexpressed within the lymphoid compartment. The rate of lymphoma induction was markedly enhanced by immunization or by the introduction of TCR transgenes. Remarkably, the Stat5 transgene potently induced development of CD8(+) T cells, even in mice expressing a class II-restricted TCR transgene, with resulting CD8(+) T cell lymphomas. These data demonstrate the oncogenic potential of dysregulated expression of a STAT protein that is not constitutively activated, and that TCR stimulation can contribute to this process.

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