{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:22:26Z","timestamp":1790036546217,"version":"4.0.1"},"reference-count":19,"publisher":"American Society for Microbiology","issue":"9","license":[{"start":{"date-parts":[[2014,9,1]],"date-time":"2014-09-01T00:00:00Z","timestamp":1409529600000},"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":["Infect Immun"],"published-print":{"date-parts":[[2014,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            The pneumococcus is the world's foremost respiratory pathogen, but the mechanisms allowing this pathogen to proceed from initial asymptomatic colonization to invasive disease are poorly understood. We have examined the early stages of invasive pneumococcal disease (IPD) by comparing host transcriptional responses to an invasive strain and a noninvasive strain of serotype 1\n            <jats:named-content content-type=\"genus-species\">Streptococcus pneumoniae<\/jats:named-content>\n            in the mouse lung. While the two strains were present in equal numbers in the lung 6 h after intranasal challenge, only the invasive strain (strain 1861) had invaded the pleural cavity at that time point; this correlated with subsequent development of bacteremia in mice challenged with strain 1861 but not the noninvasive strain (strain 1). Progression beyond the lung was associated with stronger induction of the type I interferon (IFN-I) response in the lung at 6 h. Suppression of the IFN-I response through administration of neutralizing antibody to IFNAR1 (the receptor for type I interferons) led to significantly reduced invasion of the pleural cavity by strain 1861 at 6 h postchallenge. Our data suggest that strong induction of the IFN-I response is a key factor in early progression of invasive serotype 1 strain 1861 beyond the lung during development of IPD.\n          <\/jats:p>","DOI":"10.1128\/iai.02067-14","type":"journal-article","created":{"date-parts":[[2014,7,8]],"date-time":"2014-07-08T02:41:30Z","timestamp":1404787290000},"page":"3919-3926","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":10,"title":["Development of Primary Invasive Pneumococcal Disease Caused by Serotype 1 Pneumococci Is Driven by Early Increased Type I Interferon Response in the Lung"],"prefix":"10.1128","volume":"82","author":[{"given":"Catherine E.","family":"Hughes","sequence":"first","affiliation":[{"name":"Research Centre for Infectious Diseases, School of Molecular and Biomedical Science, University of Adelaide, Adelaide, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard M.","family":"Harvey","sequence":"additional","affiliation":[{"name":"Research Centre for Infectious Diseases, School of Molecular and Biomedical Science, University of Adelaide, Adelaide, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charles D.","family":"Plumptre","sequence":"additional","affiliation":[{"name":"Research Centre for Infectious Diseases, School of Molecular and Biomedical Science, University of Adelaide, Adelaide, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James C.","family":"Paton","sequence":"additional","affiliation":[{"name":"Research Centre for Infectious Diseases, School of Molecular and Biomedical Science, University of Adelaide, Adelaide, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(09)61204-6"},{"key":"e_1_3_3_3_2","first-page":"373","article-title":"23-Valent pneumococcal polysaccharide vaccine. 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