Abstract
The rapid transductional sequences initiated by interferon-γ (IFN-γ) on binding to its receptor regulate functional and genomic responses in many cells but are not well defined. Induction of macrophage activation is an example of such functional and genomic changes in response to IFN-γ. Addition of IFN-γ to murine macrophages, at activating concentrations, produced rapid (within 60 seconds) alkalinization of the cytosol and a concomitant, rapid influx of 22 Na + . Amiloride inhibited the ion fluxes and the accumulation of specific messenger RNA for two genes induced by IFN-γ (the early gene JE and the β chain of the class II major histocompatibility complex gene I-A). The data indicate that IFN-γ initiates rapid exchange of Na + and H + by means of the Na + /H + antiporter and that these amiloride-sensitive ion fluxes are important to some of the genomic effects of IFN-γ.
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Dates
Type | When |
---|---|
Created | 18 years, 11 months ago (Oct. 5, 2006, 5:21 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 12, 2024, 5:31 p.m.) |
Indexed | 1 year, 2 months ago (June 17, 2024, 3:56 p.m.) |
Issued | 36 years, 4 months ago (April 28, 1989) |
Published | 36 years, 4 months ago (April 28, 1989) |
Published Print | 36 years, 4 months ago (April 28, 1989) |
@article{Prpic_1989, title={Role of Na + /H + Exchange by Interferon-γ in Enhanced Expression of JE and I-A β Genes}, volume={244}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.2541500}, DOI={10.1126/science.2541500}, number={4903}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Prpic, Veronica and Yu, Sheau-Fung and Figueiredo, Figueiredo and Hollenbach, Paul W. and Gawdi, Gowind and Herman, Brian and Uhing, Ronald J. and Adams, Dolph O.}, year={1989}, month=apr, pages={469–471} }