RRC ID 81276
著者 Kawaguchi N, Itakura Y, Intaruck K, Ariizumi T, Harada M, Inoue S, Maeda K, Ito N, Hall WW, Sawa H, Orba Y, Sasaki M.
タイトル Reverse genetic approaches allowing the characterization of the rabies virus street strain belonging to the SEA4 subclade.
ジャーナル Sci Rep
Abstract Rabies virus (RABV) is the causative agent of rabies, a lethal neurological disease in mammals. RABV strains can be classified into fixed strains (laboratory strains) and street strains (field/clinical strains), which have different properties including cell tropism and neuroinvasiveness. RABV Toyohashi strain is a street strain isolated in Japan from an imported case which had been bitten by rabid dog in the Philippines. In order to facilitate molecular studies of RABV, we established a reverse genetics (RG) system for the study of the Toyohashi strain. The recombinant virus was obtained from a cDNA clone of Toyohashi strain and exhibited similar growth efficiency as the original virus in cultured cell lines. Both the original and recombinant strains showed similar pathogenicity with high neuroinvasiveness in mice, and the infected mice developed a long and inconsistent incubation period, which is characteristic of street strains. We also generated a recombinant Toyohashi strain expressing viral phosphoprotein (P protein) fused with the fluorescent protein mCherry, and tracked the intracellular dynamics of the viral P protein using live-cell imaging. The presented reverse genetics system for Toyohashi strain will be a useful tool to explore the fundamental molecular mechanisms of the replication of RABV street strains.
巻・号 14(1)
ページ 18509
公開日 2024-8-9
DOI 10.1038/s41598-024-69613-y
PII 10.1038/s41598-024-69613-y
PMID 39122768
PMC PMC11316049
MeSH Animals Cell Line Dogs Humans Mice Philippines Rabies* / virology Rabies virus* / genetics Rabies virus* / pathogenicity Reverse Genetics* / methods Virus Replication / genetics
IF 3.998
リソース情報
ヒト・動物細胞 SK-N-SH(RCB0426)