猫モルビリウイルス研究の現状と課題

Feline morbillivirus (FmoPV) is a new virus species that was first discovered in Hong Kong in 2012. Study of FmoPV is important because relationship between its infection and tubulointerstitial nephritis in cats was implicated in the first report. We attempted to develop a genetic detection system b...

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Published inJournal of Animal Clinical Medicine Vol. 26; no. 4; pp. 163 - 166
Main Authors 古谷 哲也, 有川 夏穂, Kripitch Sutummaporn, 井村 ゆり, Mahmoud Helal, 木村 佑介, 佐伯 千春, 町田 登, 和知 亜紀子
Format Journal Article
LanguageJapanese
Published Japanese Society of Clinical Veterinary Medicine 25.12.2017
動物臨床医学会
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ISSN1344-6991
1881-1574
DOI10.11252/dobutsurinshoigaku.26.163

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Summary:Feline morbillivirus (FmoPV) is a new virus species that was first discovered in Hong Kong in 2012. Study of FmoPV is important because relationship between its infection and tubulointerstitial nephritis in cats was implicated in the first report. We attempted to develop a genetic detection system based on the consensus sequence of 9 FmoPV genomic sequences in the L gene, since there were FmoPV strains undetectable by the previous RT-PCR system. When 83 samples were tested with this system, we detected 4 new FmoPV strains previously undetected by the previous RT-PCR. In order to develop an antibody detection system specific to a FmoPV-antigen, we expressed a recombinant FmoPV P protein in Escherichia coli as a fusion protein with glutathione-S-transferase and developed an ELISA with the purified P protein. We detected FmoPV in 82% (26/34) of formalin-fixed kidney samples from cats suffered from nephritis, suggesting correlation between FmoPV infection and chronic nephritis. We are currently attempting to develop model systems to study FmoPV’s pathogenicity using tissue culture cells or experimental animals. 猫モルビリウイルス(FmoPV)は2012年に香港で初めて発見された新しいウイルスであるが,感染と猫の腎炎との関係が示唆されており今後の研究が重要である。私たちはFmoPVの病原性の解明のため,先ず疫学に重要な遺伝子検査法を9つのFmoPV株の共通配列によって作製し,以前の方法で検出を行った83サンプル中に新たな4株のFmoPVを検出した。FmoPV特異的抗原に対する抗体を検出するため,組み換えFmoPV P蛋白質を大腸菌で発現し,精製した蛋白質を用いてELISAの作製を試みた。腎炎猫の固定腎臓組織サンプルからFmoPVの検出を行い,82%(26/34)という高いパーセンテージでFmoPVが検出されたため,FmoPVの腎臓における病原性が確認された。現在,FmoPVの病原性のさらなる解明のため,培養細胞や実験動物を用いた病原性モデルシステムの構築を進めている
ISSN:1344-6991
1881-1574
DOI:10.11252/dobutsurinshoigaku.26.163