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Cardiac glycosides are potent inhibitors of interferon-β gene expression
We report that bufalin and other cardiac glycoside inhibitors of the sodium-potassium ATPase (sodium pump) potently inhibit the induction of the interferon-β (IFNβ) gene by virus, dsRNA or dsDNA. Cardiac glycosides increase the intracellular sodium concentration, which appears to inhibit the ATPase...
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Formato: | Texto |
Lenguaje: | English |
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2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076628/ https://www.ncbi.nlm.nih.gov/pubmed/21076398 http://dx.doi.org/10.1038/nchembio.476 |
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author | Ye, Junqiang Chen, Shuibing Maniatis, Tom |
author_facet | Ye, Junqiang Chen, Shuibing Maniatis, Tom |
author_sort | Ye, Junqiang |
collection | PubMed |
description | We report that bufalin and other cardiac glycoside inhibitors of the sodium-potassium ATPase (sodium pump) potently inhibit the induction of the interferon-β (IFNβ) gene by virus, dsRNA or dsDNA. Cardiac glycosides increase the intracellular sodium concentration, which appears to inhibit the ATPase activity of the RNA sensor RIG-I, an essential and early component in the IFNβ activation pathway. This, in turn, prevents the activation of the critical transcription factors IRF3 and NFκB. Bufalin inhibition can be overcome by expressing a drug-resistant variant of the sodium pump, and knocking down the pump by shRNA inhibits IFNβ expression. Thus, bufalin acts exclusively through the sodium pump. We also show that bufalin inhibits tumor necrosis factor (TNF) signaling, at least in part by interfering with the nuclear translocation of NFκB. These findings suggest that bufalin could be used to treat inflammatory and autoimmune diseases where IFN or TNF are hyperactivated. |
format | Text |
id | pubmed-3076628 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
record_format | MEDLINE/PubMed |
spelling | pubmed-30766282011-07-01 Cardiac glycosides are potent inhibitors of interferon-β gene expression Ye, Junqiang Chen, Shuibing Maniatis, Tom Nat Chem Biol Article We report that bufalin and other cardiac glycoside inhibitors of the sodium-potassium ATPase (sodium pump) potently inhibit the induction of the interferon-β (IFNβ) gene by virus, dsRNA or dsDNA. Cardiac glycosides increase the intracellular sodium concentration, which appears to inhibit the ATPase activity of the RNA sensor RIG-I, an essential and early component in the IFNβ activation pathway. This, in turn, prevents the activation of the critical transcription factors IRF3 and NFκB. Bufalin inhibition can be overcome by expressing a drug-resistant variant of the sodium pump, and knocking down the pump by shRNA inhibits IFNβ expression. Thus, bufalin acts exclusively through the sodium pump. We also show that bufalin inhibits tumor necrosis factor (TNF) signaling, at least in part by interfering with the nuclear translocation of NFκB. These findings suggest that bufalin could be used to treat inflammatory and autoimmune diseases where IFN or TNF are hyperactivated. 2010-11-14 2011-01 /pmc/articles/PMC3076628/ /pubmed/21076398 http://dx.doi.org/10.1038/nchembio.476 Text en Users may view, print, copy, download and text and data- mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: http://www.nature.com/authors/editorial_policies/license.html#terms |
spellingShingle | Article Ye, Junqiang Chen, Shuibing Maniatis, Tom Cardiac glycosides are potent inhibitors of interferon-β gene expression |
title | Cardiac glycosides are potent inhibitors of interferon-β gene expression |
title_full | Cardiac glycosides are potent inhibitors of interferon-β gene expression |
title_fullStr | Cardiac glycosides are potent inhibitors of interferon-β gene expression |
title_full_unstemmed | Cardiac glycosides are potent inhibitors of interferon-β gene expression |
title_short | Cardiac glycosides are potent inhibitors of interferon-β gene expression |
title_sort | cardiac glycosides are potent inhibitors of interferon-β gene expression |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076628/ https://www.ncbi.nlm.nih.gov/pubmed/21076398 http://dx.doi.org/10.1038/nchembio.476 |
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