JP2015523858A - ブタインターフェロンアルファ及びブタインターフェロンガンマを同時に発現する組換えアデノウィルス - Google Patents
ブタインターフェロンアルファ及びブタインターフェロンガンマを同時に発現する組換えアデノウィルス Download PDFInfo
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Abstract
Description
CMVプロモータの後ろにブタインターフェロンアルファ及びブタインターフェロンアルファシーケンスを挿入し、両遺伝子の間に口蹄疫ウィルス2A遺伝子を入れて同時に発現させ、これについては、図1に例示されている。
ATTTGCTCTCTGGGCTGTGATCTGCCACAGACCCACAGCCTGGCTCACACCCGGGCCCTGCGGCTCCTGGCACAGATGCGGAGAATATCCCCGTTTTCCTGTCTGGACCACCGAAGGGACTTCGGATCCCCTCATGAGGCTTTCGGGGGCAACCAGGTACAGAAGGCTCAGGCCATGGCTCTGGTGCATGAGATGCTCCAGCAGACCTTTCAGCTCTTCAGCACAGAGGGCTCGGCTGCGGCCTGGAATGAGAGCCTCCTGCACCAGTTCTGCACTGGACTGGATCAGCAGCTGCGCGATCTGGAAGCCTGCGTCATGCAGGAAGCAGGGCTGGAAGGGACCCCCCTGTTGGAGGAAGACTCCATCCTGGCTGTGCGGAAGTACTTCCACAGGCTCACCCTCTATCTGCAAGAGAAGTCCTACAGCCCCTGTGCCTGGGAGATCGTCAGGGCCGAGGTGATGCGCTCGTTCTCTTCCAGCAGAAACCTGCAGGATAGACTTCGCAAGAAGGAGCAGCTGTTGAACTTTGACCTGCTCAAGTTGGCAGGAGACGTCGAGCCCAACCCTGGGCCCATGAGCTACACAACTTATTTCTTAGCCTTTCAGCTTTGCGTGACTTTGTGTTTCTCCGGCTCTTACTGCCAGGCGCCCTTTTTTAAGGAGATCACGATCCTAAAGGACTATTTTAACGCAAGTACCTCAGATGTCCCTAACGGTGGCCCTCTTTTCTTAGAAATTTTGAAGAATTGGAAAGAGGAGAGTGACAAGAAAATCATCCAGAGCCAGATCGTTTCCTTCTACTTTAAATTCTTTGAGATCTTCAAAGACAACCAGGCCATTCAAAGGAGTATGGACGTGATTAAGCAAGACATGTTTCAGCGCTTCCTTAACGGTAGCTCTGGCAAACTGAATGACTTCGAGAAGCTGATTAAAATCCCGGTTGATAATCTGCAGATCCAGCGCAAAGCGATCAGCGAACTCATCAAGGTGATGAATGATCTGTCACCACGTTCTAACCTAAGGAAGCGGAAGCGAAGTCAGACAATGTTCCAGGGCCAGAGAGCATCAAAATAATCTAGA
組換えアデノウィルスにおけるブタインターフェロンアルファ及びガンマの発現有無を確認するためにウェスターンブロット方法を利用した。ウェスターンブロットを行う前日にIBRS−2(豚腎臓細胞)を準備して75cm2のフラスコに敷き、翌日に90%の細胞断層が形成されれば、新たな培地に希釈した約1×108TCIDのアデノウィルスをそれぞれ接種した。接種48時間後に培地を回収してAmicon ultra centrifugal filter(ミリポア社製)を用いて濃縮した後にウェスターンブロットに供した。タンパク質発現の比較のために、ブタインターフェロンアルファを発現するアデノウィルス(Ad−porcine IFN-α)、ブタインターフェロンガンマを発現するアデノウィルス(Ad−porcine IFN-γ)、ブタインターフェロンアルファ及びガンマを同時に発現するアデノウィルス(Ad−porcine IFN-αγ)を一緒に実験した。ブタインターフェロンアルファの確認のために抗IFNアルファ単一クローン抗体K9(サーモサイエンティフィック社製)を500倍に希釈して使用し、ブタインターフェロンガンマの確認のためには抗ブタIFN−ガンマ多重クローン抗体(サーモサイエンティフィック社製)を500倍に希釈して使用した。ECLTMプライムウェスターンブロット検出試薬(GEヘルスケアライフサイエンス社製)を用いて発色し、Imagequant LAS 4000 system(GEヘルスケア社製)を用いてイメージを得、これを図2に示す。
前記製造した組換えアデノウィルスにおいて発現されるブタインターフェロンアルファ及びガンマをPorcine IFN-α ELISA(酵素結合免疫吸着測定法) Kit(ユーエスシーエヌライフサイエンス社製)及びPorcine IFN-γ ELISA Kit(サーモサイエンティフィック社製)を用いて定量した。その結果を下記表1に示す。
組換えアデノウィルスの力価別の口蹄疫ウィルスの抑制度を評価した。このために、IBRS−2(豚腎臓細胞)を準備して75cm2のフラスコに敷き、翌日に90%の細胞断層が形成されたときに、各力価別に10倍に段階的に希釈して組換えアデノウィルスを接種した。翌日に上澄液を除去した後に600 TCID50の口蹄疫ウィルスを接種し、接種1時間後に培地を交換した。口蹄疫ウィルス接種48時間後に上澄液を回収してリアルタイムRT−PCRで口蹄疫ウィルスの複製数を測定した。リアルタイムRT−PCRは、口蹄疫の3D部分を目的とするプライマーセンス5’−GGAACYGGGTTTTAYAAACCTGTRAT−3’(配列番号3)、アンチセンス5’−CCTCTCCTTTGCACGCCGTGGGA−3’(配列番号4)と、プローブ5’−FAM−CCCADCGCAGGTAAAGYGATCTGTA−TAMRA−3’(配列番号5)及びABI 7500 Real−time PCR system(アプライドバイオシステムズ社製)を用いて行った(Su−Mi Kim et al., Multiple shRNAs driven by U6 and CMV promoter enhances efficiency of antiviral effects against foot−and−mouth disease virus, 2010, Antiviral Research 87:307−317)。その結果を図3に示す。
この実験のために、実験群当たりに15匹または14匹(Ad−null対照群)にして、合計59匹のICRマウス6日齢個体を準備し、個体当たりに2×107 TCID50のアデノウィルスを接種した。接種24時間後に口蹄疫ウィルスを250LD50接種した後、7日間の生存率を観察し、その結果を図4に示す。
配列番号2:ブタインターフェロンアルファ及びガンマを同時に発現するための遺伝子配列(両端にNheI、XbaI制限酵素配列を含む)
配列番号3:RT−PCRに用いるセンスプライマーの配列
配列番号4:RT−PCRに用いるアンチセンスプライマーの配列
配列番号5:RT−PCRに用いるプローブの配列
Claims (6)
- ブタインターフェロンアルファ、口蹄疫ウィルス2A及びブタインターフェロンガンマ遺伝子の順に配列された、配列番号2の塩基配列を含む組換えアデノウィルス。
- 前記ブタインターフェロンアルファ及びブタインターフェロンガンマ遺伝子を同時に発現することを特徴とする請求項1に記載の組換えアデノウィルス。
- 前記組換えウィルスベクターは、アデノウィルスベクターであることを特徴とする請求項1または請求項2に記載の組換えアデノウィルス。
- ブタインターフェロンアルファ、口蹄疫ウィルス2A及びブタインターフェロンガンマ遺伝子の順に配列された、配列番号2の塩基配列を含むプラスミド。
- 前記ブタインターフェロンアルファ及びブタインターフェロンガンマ遺伝子を同時に発現することを特徴とする請求項4に記載のプラスミド。
- 請求項1、請求項2、請求項4及び請求項5のいずれか一項に記載の組換えアデノウィルスまたはプラスミドを含む口蹄疫ウィルス抑制剤。
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Application Number | Priority Date | Filing Date | Title |
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KR10-2012-0058410 | 2012-05-31 | ||
KR20120058410A KR101329348B1 (ko) | 2012-05-31 | 2012-05-31 | 돼지 인터페론 알파-돼지 인터페론 감마를 동시 발현하는 재조합 아데노바이러스 |
PCT/KR2013/004784 WO2013180501A1 (ko) | 2012-05-31 | 2013-05-31 | 돼지 인터페론 알파-돼지 인터페론 감마를 동시 발현하는 재조합 아데노바이러스 |
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JP2015523858A true JP2015523858A (ja) | 2015-08-20 |
JP2015523858A5 JP2015523858A5 (ja) | 2016-07-21 |
JP6386448B2 JP6386448B2 (ja) | 2018-09-05 |
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US20090269372A1 (en) * | 2008-04-24 | 2009-10-29 | Grubman Marvin J | Enhanced Antiviral Activity Against Foot and Mouth Disease |
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BIOLOGICALS, vol. vol. 38, issue. 5, JPN6017013668, September 2010 (2010-09-01), pages 586 - 593, ISSN: 0003540086 * |
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