JP7264992B2 - 新規な重症熱性血小板減少症候群ウイルス - Google Patents
新規な重症熱性血小板減少症候群ウイルス Download PDFInfo
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- JP7264992B2 JP7264992B2 JP2021509707A JP2021509707A JP7264992B2 JP 7264992 B2 JP7264992 B2 JP 7264992B2 JP 2021509707 A JP2021509707 A JP 2021509707A JP 2021509707 A JP2021509707 A JP 2021509707A JP 7264992 B2 JP7264992 B2 JP 7264992B2
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Description
Science(Mack PublishingCompany、Easton PA、18th、1990)に開示されている方法を用いて、各疾患または成分に応じて好ましく製剤化することができる。
各genotype別交差免疫原性を比較解析するために、FRNT50(fifty percent of Focu s reduction neutralization test)を行った。具体的には、本発明において分離した新たな細部遺伝子型B-1、B-2およびB-3のウイルスを大量に増殖させた後、それぞれホルマリン(0.05%)を添加して不活化した後、不活化の有無を3回のウイルス分離(isolation)により確認した。不活化した前記ワクチン(inactivated whole vaccine)を20%のスクロース(sucrose)を活用し、超遠心分離によりタンパク質を生産した後、これをフェレットに免疫化した。2週間後、フェレットに追加免疫を実施した後、(2番の免疫2週間隔)、血を採血して血清を分離した。分離した血清を30分間56℃で不活性化させた後、10分の1に希釈した後、2倍ずつ階段希釈した。200FFU/mlで希釈したウイルスを、階段希釈したウイルスと1:1で37℃で反応させた。6ウェルプレートに分注したVeroE6細胞を洗浄した後、前記反応させたウイルスで感染させ、1時間後に洗浄した後、1%FBSが含有された0.8%DMEMアガロースゲルを細胞に注いだ。感染5日後、ホルマリンを活用して固定し、3時間後、3回洗浄を行った後、10%triton x-100を5分ずつ室温で処理した。その後、3回洗浄し、5%BSAでブロッキングを行った。生産したpolyclonal NP antibodyを1次抗体として用い、インキュベーションした後、3回洗浄し、2次抗体としてHRP conjugated抗体を1時間反応させ洗浄した後、DABで発色して、結果を確認した。ウイルスのみ感染させたウェルのfoucus formingより50%減少した値までを有効と解釈した。
Claims (8)
- L遺伝子のORF(6255bp)で発現されたタンパク質の1447番のアミノ酸がイソロイシンおよび1913番のアミノ酸がアルギニンであり、M遺伝子のORF(3222bp)で発現されたタンパク質の83番目のアミノ酸がフェニルアラニン、404番目のアミノ酸がスレオニンおよび904番目のアミノ酸がイソロイシンであり、
L遺伝子が配列番号17のアミノ酸配列を発現し、M遺伝子が配列番号18のアミノ酸配列を発現し、NP遺伝子が配列番号19のアミノ酸配列を発現し、NS遺伝子が配列番号20のアミノ酸配列を発現し、
配列番号5の塩基配列を含むL遺伝子、配列番号6の塩基配列を含むM遺伝子、配列番号7の塩基配列を含むNP遺伝子および配列番号8の塩基配列を含むNS遺伝子を含む、重症熱性血小板減少症ウイルス。 - 請求項1に記載の重症熱性血小板減少症ウイルスを有効成分として含む、重症熱性血小板減少症の予防または治療用免疫原性組成物。
- 不活化した重症熱性血小板減少症ウイルスと薬剤学的に許容可能な担体(carrier)またはアジュバント(adjuvant)を含む、請求項2に記載の重症熱性血小板減少症の予防または治療用免疫原性組成物。
- 前記免疫原性組成物の形態は、生クワクチン、不活化ワクチン、弱毒化された重症熱性血小板減少症ウイルスの遺伝子を用いて生産したサブユニットワクチン、ベクトルワクチン、キメラワクチン、DNAおよびRNAワクチンからなる群から選択される、請求項2に記載の重症熱性血小板減少症の予防または治療用免疫原性組成物。
- 請求項1に記載のウイルスを含む重症熱性血小板減少症ウイルスの診断キット。
- (a)抗原-抗体複合体が形成されることができる条件下で検体から分離された試料を請求項1に記載のウイルスと接触させる段階と、
(b)抗原-抗体複合体の形成を検出する段階とを含む、重症熱性血小板減少症ウイルス抗体を検出する方法。 - (a)請求項1に記載のウイルスを免疫反応を誘導するのに有効な量でヒトでない動物に投与する段階と、
(b)前記重症熱性血小板減少症ウイルスに対する抗体を含有する抗血清または血漿を収集する段階とを含む、ヒトでない動物から重症熱性血小板減少症ウイルスに対する抗血清を製造する方法。 - (a)検体から分離された試料を請求項1に記載のウイルスと接触させ、抗原-抗体複合体を形成させる段階と、
(b)前記複合体の形成を検出する段階とを含む、重症熱性血小板減少症の診断に関する情報を提供する方法。
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