Journal article

The role of Ets-1 in mast cell granulocyte-macrophage colony-stimulating factor expression and activation.

LH McKinlay, MJ Tymms, RS Thomas, A Seth, S Hasthorpe, PJ Hertzog, I Kola

J Immunol | Published : 1998

Abstract

Ets-1 is a transcription factor with restricted expression in lymphocytes, and it has been implicated in the regulation of T cell genes such as TCR alpha, TCR beta, CD4, IL-2, and TNF-alpha. We show in this study that Ets-1 is also expressed in some mast cells constitutively and can be induced in primary mast cells with stimuli that activate mast cells. We also show that Ets-1 plays a role in the regulation of granulocyte-macrophage CSF (GM-CSF), a cytokine expressed by activated mast cells. We have characterized a murine growth factor-independent mast cell line, FMP6-, derived from a factor-dependent cell line, FMP1.6. FMP6- has acquired a distinct connective tissue mast cell-like phenotype..

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