{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T02:41:10Z","timestamp":1789440070336,"version":"build-2803163510"},"reference-count":48,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2011,9,1]],"date-time":"2011-09-01T00:00:00Z","timestamp":1314835200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2011,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Drugs that can rapidly inhibit respiratory infection from influenza or other respiratory pathogens are needed. One approach is to engage primary innate immune defenses against viral infection, such as activating the IFN pathway. In this study, we report that a small, cell-permeable compound called 5,6-di-methylxanthenone-4-acetic acid (DMXAA) can induce protection against vesicular stomatitis virus in vitro and H1N1 influenza A virus in vitro and in vivo through innate immune activation. Using the mouse C10 bronchial epithelial cell line and primary cultures of nasal epithelial cells, we demonstrate DMXAA activates the IFN regulatory factor-3 pathway leading to production of IFN-\u03b2 and subsequent high-level induction of IFN-\u03b2\u2013dependent proteins, such as myxovirus resistance 1 (Mx1) and 2\u2032,5\u2032-oligoadenylate synthetase 1 (OAS1). Mice treated with DMXAA intranasally elevate mRNA\/protein expression of Mx1 and OAS1 in the nasal mucosa, trachea, and lung. When challenged intranasally with a lethal dose of H1N1 influenza A virus, DMXAA reduced viral titers in the lungs and protected 80% of mice from death, even when given at 24 hours before infection. These data show that agents, like DMXAA, that can directly activate innate immune pathways, such as the IFN regulatory factor-3\/IFN-\u03b2 system, in respiratory epithelial cells can be used to protect from influenza pneumonia and potentially in other respiratory viral infections. Development of this approach in humans could be valuable for protecting health care professionals and \u201cfirst responders\u201d in the early stages of viral pandemics or bioterror attacks.<\/jats:p>","DOI":"10.1165\/rcmb.2010-0288oc","type":"journal-article","created":{"date-parts":[[2010,12,10]],"date-time":"2010-12-10T22:29:46Z","timestamp":1292020186000},"page":"480-488","source":"Crossref","is-referenced-by-count":22,"title":["Pharmacologic Activation of the Innate Immune System to Prevent Respiratory Viral Infections"],"prefix":"10.1093","volume":"45","author":[{"given":"Guanjun","family":"Cheng","sequence":"first","affiliation":[{"name":"Thoracic Oncology Research Laboratory, University of Pennsylvania, Philadelphia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liang-Chuan","family":"S. 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