JP2014513968A - Hcmv感染細胞からの「高密度体」(db)の産生 - Google Patents
Hcmv感染細胞からの「高密度体」(db)の産生 Download PDFInfo
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Abstract
Description
物質(A) (4S)−{8−フルオロ−2−[4−(3−メトキシフェニル)−1−ピペラジニル]−3−[2−メトキシ−5−(トリフルオロメチル)−フェニル]−3,4−ジヒドロ−4−キナゾリニル}酢酸の合成は、国際公開第2004/096778号パンフレット、72〜73ページの実施形態14および15に詳細に記載されている。
2.1 HCMVのAD169株に感染した線維芽細胞における産生
ヒト包皮線維芽細胞(HFF)は、感染の前日に、5個のT75細胞培養フラスコに、1フラスコ当たり1×106個ずつ加えた。HCMVのAD169株は、感染後期の細胞から得て凍結した無細胞ウイルス調製物として準備した。本発明の物質(A)、(B)、(C)および(D)は、それぞれ50mmol/lでDMSOに溶解した原液として提供された。
A: 1:1000(50nmol/l)12mlのMEM中12μml
B: 1:10,000(5nmol/l)12mlのMEM中1.2μml
C: 1:100(500nmol/l)12mlのMEM中120μml
D: 1:100(500nmol/l)12mlのMEM中120μml
A:50nmol/l;B:5nmol/l;C:500nmol/l;D:500nmol/l
2.2 HCMVのTB40/E株に感染した内皮細胞における産生
A:300nmol/l;B:300nmol/l:C:3μmol/l;D:30,000μmol/l
2.1で詳述した方法と同様に、感染後期の細胞から分離したHCMV臨床分離株にHFFを感染させた。ミニトレー(3,000細胞/ウェル)を用いて、感染したHFFを非感染HFFと共培養した。感染細胞と非感染細胞の割合は、希釈率の異なる3種類(無希釈;1:2希釈;1:4希釈)を用意した。以下の濃度の本発明の物質を用いて、細胞の培養を行った。
A:300nmol/l;B:300nmol/l;C:3μmol/l;D:30μmol/l
高密度体の単離に関しては、公知技術、たとえばPepperl et al.(2000),Journal of Virology 74,6132−6146およびIrmiere, A. and W. Gibson(1993),Virology 130,118−133に詳細に記載されている。これらの刊行物の内容は、参照により本出願の構成要素となる。
本発明者らは、本発明の物質(A)、(B)、(C)および(D)を用いることにより、並外れた効率で多量の高密度体が産生されることを示すことができた。この高密度体は、単離精製後、たとえばワクチンとして使用することができる。前述の物質の使用により高純度のDBを単離できることは、特に有利である。
Claims (18)
- 前記物質を用いてヒトサイトメガロウイルス(HCMV)に感染した生体細胞を適切な培地中で培養することを特徴とする、請求項1に記載の使用。
- 生体細胞が初代細胞であることを特徴とする、請求項2に記載の使用。
- 生体細胞がヒト線維芽細胞、ヒト内皮細胞、ヒト樹状細胞、ヒト上皮細胞およびヒトマクロファージから成る群から選択されることを特徴とする、請求項2または3に記載の使用。
- 培地中の前記物質の濃度を約1nmol/l〜100μmol/lとして培養が行われることを特徴とする、請求項2〜4のいずれかに記載の使用。
- 培養が1〜14日間、好ましくは3〜10日間、さらに好ましくは5日間にわたって行われることを特徴とする、請求項2〜5のいずれかに記載の使用。
- 培養後にDBが単離されることを特徴とする、請求項2〜6のいずれかに記載の使用。
- 前記単離が無細胞培地からDBを分離することによって行われ、その手段として遠心分離が用いられることを特徴とする、請求項7に記載の使用。
- 生体細胞が初代細胞であることを特徴とする、請求項9に記載の方法。
- 生体細胞がヒト内皮細胞、ヒト線維芽細胞、ヒト樹状細胞、ヒト上皮細胞およびヒトマクロファージから成る群から選択されることを特徴とする、請求項9または10に記載の方法。
- ステップ(2)が培地中の前記物質の濃度を約1nmol/l〜1μmol/lとして行われることを特徴とする、先行する請求項のいずれかに記載の方法。
- ステップ(2)が1〜14日間、好ましくは3〜10日間、さらに好ましくは5日間にわたって行われることを特徴とする、先行する請求項のいずれかに記載の方法。
- ステップ(2)の後に、さらなるステップである
(3)DBの単離
が続くことを特徴とする、先行する請求項のいずれかに記載の方法。 - ステップ(3)において、無細胞培地を遠心分離することによってDBが該培地から分離されることを特徴とする、請求項14に記載の方法。
- (1)「高密度体」(DB)を産生するステップ、
(2)ステップ(1)で産生したDBを調製するステップ、および
(3)ステップ(2)で調製したDBを薬学的に許容される賦形剤を用いて製剤化するステップ、
を有する医薬組成物の製造方法であって、このうち産生ステップ(1)が請求項9〜15のいずれかに記載の方法によって行われることを特徴とする方法。 - 医薬組成物がワクチンであることを特徴とする、請求項16に記載の方法。
- 請求項16または17の方法によって製造される医薬組成物。
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DE102011101446.6 | 2011-05-10 | ||
DE102011101446A DE102011101446A1 (de) | 2011-05-10 | 2011-05-10 | Herstellung von "Dense Bodies" (DB) |
PCT/EP2012/058094 WO2012152644A1 (de) | 2011-05-10 | 2012-05-03 | Herstellung von "dense bodies" (db) aus hcmv infizierten zellen |
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DE102012101673A1 (de) | 2012-02-29 | 2013-08-29 | Aicuris Gmbh & Co. Kg | Salze eines Dihydrochinazolinderivats |
US10611800B2 (en) | 2016-03-11 | 2020-04-07 | Pfizer Inc. | Human cytomegalovirus gB polypeptide |
US11629172B2 (en) | 2018-12-21 | 2023-04-18 | Pfizer Inc. | Human cytomegalovirus gB polypeptide |
US11857622B2 (en) | 2020-06-21 | 2024-01-02 | Pfizer Inc. | Human cytomegalovirus GB polypeptide |
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EP2707026A1 (de) | 2014-03-19 |
CN107029228A (zh) | 2017-08-11 |
US9458433B2 (en) | 2016-10-04 |
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DE102011101446A1 (de) | 2012-11-15 |
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