{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T12:48:59Z","timestamp":1791290939230,"version":"4.3.0"},"reference-count":34,"publisher":"American Society for Microbiology","issue":"5","license":[{"start":{"date-parts":[[2015,3,1]],"date-time":"2015-03-01T00:00:00Z","timestamp":1425168000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Virol"],"published-print":{"date-parts":[[2015,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Previously we found that following intranasal (i.n.) infection with neurotropic vesicular stomatitis virus (VSV) type I interferon receptor (IFNAR) triggering of neuroectodermal cells was critically required to constrain intracerebral virus spread. To address whether locally active IFN-\u03b2 was induced proximally, we studied spatiotemporal conditions of VSV-mediated IFN-\u03b2 induction. To this end, we performed infection studies with IFN-\u03b2 reporter mice. One day after intravenous (i.v.) VSV infection, luciferase induction was detected in lymph nodes. Upon i.n. infection, luciferase induction was discovered at similar sites with delayed kinetics, whereas on days 3 and 4 postinfection enhanced luciferase expression additionally was detected in the foreheads of reporter mice. A detailed analysis of cell type-specific IFN-\u03b2 reporter mice revealed that within the olfactory bulb IFN-\u03b2 was expressed by neuroectodermal cells, primarily by astrocytes and to a lesser extent by neurons. Importantly, locally induced type I IFN triggered distal parts of the brain as indicated by the analysis of ISRE-eGFP mice which after i.n. VSV infection showed enhanced green fluorescent protein (eGFP) expression throughout the brain. Compared to wild-type mice, IFN-\u03b2<jats:sup>\u2212\/\u2212<\/jats:sup>mice showed increased mortality to i.n. VSV infection, whereas upon i.v. infection no such differences were detected highlighting the biological significance of intracerebrally expressed IFN-\u03b2. In conclusion, upon i.n. VSV instillation, IFN-\u03b2 responses mounted by astrocytes within the olfactory bulb critically contribute to the antiviral defense by stimulating distal IFN-\u03b2-negative brain areas and thus arresting virus spread.<\/jats:p><jats:p><jats:bold>IMPORTANCE<\/jats:bold>The central nervous system has long been considered an immune privileged site. More recently, it became evident that specialized immune mechanisms are active within the brain to control pathogens. Previously, we showed that virus, which entered the brain via the olfactory route, was arrested within the olfactory bulb by a type I IFN-dependent mechanism. Since peripheral type I IFN would not readily cross the blood-brain barrier and within the brain thus far no abundant type I IFN responses have been detected, here we addressed from where locally active IFN originated from. We found that upon intranasal VSV instillation, primarily astrocytes, and to a lesser extent neurons, were stimulated within the olfactory bulb to mount IFN-\u03b2 responses that also activated and protected distal brain areas. Our results are surprising because in other infection models astrocytes have not yet been identified as major type I IFN producers.<\/jats:p>","DOI":"10.1128\/jvi.02044-14","type":"journal-article","created":{"date-parts":[[2014,12,25]],"date-time":"2014-12-25T05:56:35Z","timestamp":1419486995000},"page":"2731-2738","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":79,"title":["Upon Intranasal Vesicular Stomatitis Virus Infection, Astrocytes in the Olfactory Bulb Are Important Interferon Beta Producers That Protect from Lethal Encephalitis"],"prefix":"10.1128","volume":"89","author":[{"given":"Claudia N.","family":"Detje","sequence":"first","affiliation":[{"name":"Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Lienenklaus","sequence":"additional","affiliation":[{"name":"Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chintan","family":"Chhatbar","sequence":"additional","affiliation":[{"name":"Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia","family":"Spanier","sequence":"additional","affiliation":[{"name":"Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chittappen K.","family":"Prajeeth","sequence":"additional","affiliation":[{"name":"Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudia","family":"Soldner","sequence":"additional","affiliation":[{"name":"Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael G.","family":"Tovey","sequence":"additional","affiliation":[{"name":"Laboratory of Biotechnology Applied Pharmacology, \u00c9cole Normale Sup\u00e9rieure de Cachan, Cachan Cedex, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dirk","family":"Schl\u00fcter","sequence":"additional","affiliation":[{"name":"Institute for Medical Microbiology and Hospital Hygiene, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany"},{"name":"Organ-Specific Immune Regulation, Helmholtz Centre for Infection Research, Braunschweig, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siegfried","family":"Weiss","sequence":"additional","affiliation":[{"name":"Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Stangel","sequence":"additional","affiliation":[{"name":"Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulrich","family":"Kalinke","sequence":"additional","affiliation":[{"name":"Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.3390\/v5030834"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1038\/nri1105"},{"key":"e_1_3_2_4_2","first-page":"1137","volume-title":"Virology","author":"Dietzschold B","year":"1996","unstructured":"Dietzschold B, Rupprecht CE, Fu ZF, Koprowski H, Fields BN, Knipe DM, Howley PM. 1996. 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