Abstract

Several hormones and cytokines stimulate the cellular Na+/H+ antiporter and this stimulation may be a signal transduction mechanism to mediate gene expression. We find that tumor necrosis factor rapidly stimulates both the Na+/H+ antiporter and the accumulation of mRNA coding for granulocyte-macrophage colony-stimulating factor and interleukin-6 in fibroblasts. Further experiments show that these phenomena occur independent of each other.

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