JP4558652B2 - ウイルス生産の改善 - Google Patents
ウイルス生産の改善 Download PDFInfo
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- JP4558652B2 JP4558652B2 JP2005518242A JP2005518242A JP4558652B2 JP 4558652 B2 JP4558652 B2 JP 4558652B2 JP 2005518242 A JP2005518242 A JP 2005518242A JP 2005518242 A JP2005518242 A JP 2005518242A JP 4558652 B2 JP4558652 B2 JP 4558652B2
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Description
Claims (38)
- (a)一種またはそれ以上の塩を細片を含む尿膜腔液に添加して、尿膜腔液中の総塩濃度を0.5Mより大きい濃度とすることによって細片からウイルスを解離させる工程;および
(b)細片から解離し、尿膜腔液中に溶解したウイルスを回収する工程、
を含む、ウイルスが感染したニワトリ胚の細片含有尿膜腔液からウイルスを回収する方法。 - 塩が、卵から尿膜腔液を除去する前に尿膜腔液に添加される、請求項1に記載の方法。
- 回収工程(b)が、工程(a)の尿膜腔液を遠心分離によって清澄化し、細片を含むペレットとウイルスを含む上清とを形成させる工程を含む、請求項1に記載の方法。
- 総塩濃度が0.5Mまたはそれ以上の溶液内にペレットを懸濁させることによってペレットからウイルスを解離させる工程、および得られた懸濁液からウイルスを回収する工程をさらに含む、請求項3に記載の方法。
- 回収工程(b)が、工程(a)の尿膜腔液を濾過によって清澄化し、ウイルスを含むろ液と細片を含む濾過残渣とを形成させる工程を含む、請求項1に記載の方法。
- 工程(b)が、工程a)の尿膜腔液の庶糖密度遠心分離にて、密度勾配の範囲内にウイルスを集中させる工程を含む、請求項1に記載の方法。
- ウイルスがエンベロープを有するウイルスである、請求項1に記載の方法。
- エンベロープを有するウイルスがRNAゲノムを含む、請求項7に記載の方法。
- エンベロープを有するウイルスが、オルトミクソウイルス科(orthomyxoviridae)、パラミクソウイルス科(paramyxoviridae)、フラビウイルス科(flaviviridae)、トガウイルス科(togaviridae)、ラブドウイルス科(rhabdoviridae)、およびコロナウイルス科(coronaviridae)からなる群より選択されるウイルスファミリーの一員である、請求項8に記載の方法。
- ウイルスがインフルエンザウイルスである、請求項9に記載の方法。
- ウイルスがインフルエンザAウイルスである、請求項10に記載の方法。
- ウイルスがインフルエンザBウイルスである、請求項10に記載の方法。
- 前記一種またはそれ以上の塩を添加する前に、尿膜腔液を希釈する工程を含む、請求項1に記載の方法。
- ウイルスがインフルエンザAのモスクワ株である、請求項11に記載の方法。
- 工程(a)における総塩濃度を1.0Mから3.5Mとする、請求項1に記載の方法。
- 前記一種またはそれ以上の塩が塩化ナトリウムを含む、請求項15に記載の方法。
- 前記一種またはそれ以上の塩がリン酸緩衝溶液中に含まれている、請求項1に記載の方法。
- 尿膜腔液のpHをpH3から10の範囲に調整するかまたは維持する、請求項1に記載の方法。
- ウイルスが感染したニワトリ胚の細片含有尿膜腔液からウイルスを回収する方法であって、尿膜腔液を清澄化して清澄な液体の画分と細片を含む画分とを形成させ、当該方法が清澄な液体の画分と細片を含む画分の両者からウイルスを抽出する工程を含み、当該抽出工程が:
(a)細片を含む画分と結び付いたウイルスを、細片を含む画分中の総塩濃度が0.5Mより大きい一種またはそれ以上の塩の溶液によって懸濁液中で解離させる工程;および
(b)解離したウイルスを懸濁液から回収する工程、
を含む、前記方法。 - 前記清澄化が遠心分離を含み、および前記細片を含む画分が遠心分離ペレットを含む、請求項19に記載の方法。
- 前記清澄化が濾過を含み、および前記細片を含む画分が濾過残渣を含む、請求項19に記載の方法。
- 懸濁液を清澄化して、第二の清澄な液体と第二の細片を含む画分とを形成させることによって、ウイルスを懸濁液から回収する工程をさらに含む、請求項19に記載の方法。
- 庶糖密度勾配上に集中させることによって、ウイルスを第二の清澄な液体から回収する工程をさらに含む、請求項22に記載の方法。
- ウイルスがエンベロープを有するウイルスである、請求項19に記載の方法。
- エンベロープを有するウイルスがRNAゲノムを含む、請求項24に記載の方法。
- エンベロープを有するウイルスがオルトミクソウイルス科(orthomyxoviridae)、パラミクソウイルス科(paramyxoviridae)、フラビウイルス科(flaviviridae)、トガウイルス科(togaviridae)、ラブドウイルス科(rhabdoviridae)、およびコロナウイルス科(coronaviridae)からなる群より選択されるウイルスファミリーの一員である、請求項25に記載の方法。
- ウイルスがインフルエンザウイルスである、請求項26に記載の方法。
- ウイルスがインフルエンザAウイルスである、請求項27に記載の方法。
- ウイルスがインフルエンザBウイルスである、請求項27に記載の方法。
- 前記一種またはそれ以上の塩を添加する前に、尿膜腔液を希釈する工程を含む、請求項19に記載の方法。
- ウイルスがインフルエンザAのモスクワ株である、請求項28に記載の方法。
- 前記懸濁液における前記総塩濃度を1.0Mから3.5Mとする、請求項19に記載の方法。
- 前記一種またはそれ以上の塩が塩化ナトリウムを含む、請求項32に記載の方法。
- 尿膜腔液のpHをpH3から10の範囲に調整するかまたは維持する、請求項19に記載の方法。
- a)一種またはそれ以上の塩を細片含有尿膜腔液に添加して、尿膜腔液中の総塩濃度を1.0Mまたはそれ以上とする工程;
b)遠心分離または濾過によって尿膜腔液を清澄化する工程;
c)清澄な尿膜腔液について庶糖密度勾配分離を行って、密度勾配の範囲内にウイルスを集中させる工程;および
d)集中させたウイルスを勾配から単離する工程、
を含む、ウイルスが感染したニワトリ胚の細片含有尿膜腔液からインフルエンザウイルスを回収するための、請求項1に記載の方法。 - 工程a)の尿膜腔液のpHをpH3.0からpH6.8の範囲に調整するかまたは維持する、請求項35に記載の方法。
- 工程a)の尿膜腔液のpHをpH6.8からpH9.8の範囲に調整するかまたは維持する、請求項35に記載の方法。
- 遠心分離から得られたペレットまたは濾過から得られた残渣を塩溶液中に懸濁させて、1.0Mまたはそれ以上の総塩濃度とする工程をさらに含む、請求項35に記載の方法。
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