{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T14:33:49Z","timestamp":1791297229139,"version":"4.1.0"},"reference-count":56,"publisher":"American Society for Microbiology","issue":"11","license":[{"start":{"date-parts":[[2015,6,1]],"date-time":"2015-06-01T00:00:00Z","timestamp":1433116800000},"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":[[2015,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Japanese encephalitis virus (JEV) strains can be separated into 5 genotypes (g1 to g5) based on sequence similarity. JEV g5 strains have been rarely isolated and are poorly characterized. We report here the full characterization of a g5 virus generated using a cDNA-based technology and its comparison with a widely studied g3 strain. We did not observe any major differences between those viruses when their infectious cycles were studied in various cell lines\n            <jats:italic>in vitro<\/jats:italic>\n            . Interestingly, the JEV g5 strain was highly pathogenic when inoculated to BALB\/c mice, which are known to be largely resistant to JEV g3 infection. The study of chimeric viruses between JEV g3 and g5 showed that there was a poor viral clearance of viruses that express JEV g5 structural proteins in BALB\/c mice blood, which correlated with viral invasion of the central nervous system and encephalitis. In addition, using an\n            <jats:italic>in vitro<\/jats:italic>\n            model of the blood-brain barrier, we were able to show that JEV g5 does not have an enhanced capacity for entering the central nervous system, compared to JEV g3. Overall, in addition to providing a first characterization of the understudied JEV g5, our work highlights the importance of sustaining an early viremia in the development of JEV encephalitis.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>IMPORTANCE<\/jats:bold>\n            Genotype 5 viruses are genetically and serologically distinct from other JEV genotypes and can been associated with human encephalitis, which warrants the need for their characterization. In this study, we characterized the\n            <jats:italic>in vitro<\/jats:italic>\n            and\n            <jats:italic>in vivo<\/jats:italic>\n            properties of a JEV g5 strain and showed that it was more neuropathogenic in a mouse model than a well-characterized JEV g3 strain. The enhanced virulence of JEV g5 was associated with poor viral clearance but not with enhanced crossing of the blood-brain barrier, thus providing new insights into JEV pathogenesis.\n          <\/jats:p>","DOI":"10.1128\/jvi.00358-15","type":"journal-article","created":{"date-parts":[[2015,3,19]],"date-time":"2015-03-19T02:33:52Z","timestamp":1426732432000},"page":"5862-5875","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":43,"title":["A Japanese Encephalitis Virus Genotype 5 Molecular Clone Is Highly Neuropathogenic in a Mouse Model: Impact of the Structural Protein Region on Virulence"],"prefix":"10.1128","volume":"89","author":[{"given":"M\u00e9lissanne","family":"de Wispelaere","sequence":"first","affiliation":[{"name":"Flavivirus-Host Molecular Interactions Laboratory, Institut Pasteur, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie-Pascale","family":"Frenkiel","sequence":"additional","affiliation":[{"name":"Flavivirus-Host Molecular Interactions Laboratory, Institut Pasteur, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philippe","family":"Despr\u00e8s","sequence":"additional","affiliation":[{"name":"Flavivirus-Host Molecular Interactions Laboratory, Institut Pasteur, Paris, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.2471\/BLT.10.085233"},{"key":"e_1_3_2_3_2","first-page":"93","volume-title":"Emerging infections 8","author":"Fischer M","year":"2008","unstructured":"Fischer M, Hills S, Staples E, Johnson B, Yaich M, Solomon T, Scheld WM, Hammer SM, Hughes JM. 2008. Japanese encephalitis prevention and control: advances, challenges, and new initiatives, p 93\u2013124. In Schel WM, Hammer SM, Hughes JM (ed), Emerging infections 8. 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