JP5897700B2 - 腫瘍崩壊におけるトリメタニューモウイルス - Google Patents
腫瘍崩壊におけるトリメタニューモウイルス Download PDFInfo
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- JP5897700B2 JP5897700B2 JP2014504287A JP2014504287A JP5897700B2 JP 5897700 B2 JP5897700 B2 JP 5897700B2 JP 2014504287 A JP2014504287 A JP 2014504287A JP 2014504287 A JP2014504287 A JP 2014504287A JP 5897700 B2 JP5897700 B2 JP 5897700B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
- A61K35/66—Microorganisms or materials therefrom
- A61K35/76—Viruses; Subviral particles; Bacteriophages
- A61K35/768—Oncolytic viruses not provided for in groups A61K35/761 - A61K35/766
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- C12N2760/00011—Details
- C12N2760/18011—Paramyxoviridae
- C12N2760/18311—Metapneumovirus, e.g. avian pneumovirus
- C12N2760/18332—Use of virus as therapeutic agent, other than vaccine, e.g. as cytolytic agent
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Description
以下のとおりにトリプシンで前処理された細胞培養培地内のTRTウイルス懸濁液で感染を行った。10 USP TU/ml トリプシンを該ウイルス懸濁液に加え、該混合物を30分間インキュベートした。トリプシン活性を阻害するために、10% FBS(Biochrome AG)を該ウイルス懸濁液に加えた。
培地をCL188細胞から除去し、1mlのウイルス懸濁液を感染多重度(MOI)0.1およびMOI 0.01で加えた。組織培養条件(37℃、5% CO2)で1時間のインキュベーションの後、10% ウシ胎児血清、細胞培養において一般に使用される標準量のネオマイシン、ピマフシン(pymafusin)およびチロシン(tylosin)ならびに2μg/ml フンジゾン(Fungizone)(Gibco)を含む4mlの完全組織培養培地を加え、細胞を組織培養条件で3日間維持した。ついで細胞上清を集め、−70℃で保存した。新鮮な完全組織培養培地を該細胞に加え、感染の7日後に細胞上清を集めた。ついで1mlのPBS−レッドを該細胞に加え、ついでこれをこすって該細胞を細胞培養表面から解離させた。最後に、接種物、細胞上清収集物および収集細胞の両方のウイルス力価(Log10 TCID50/ml)を決定した。
表1は、接種物、接種後3日および7日の時点の細胞上清収集物ならびに収集細胞のTRT力価(Log10 TCID50/ml)を示す。
イヌ腫瘍細胞に対するシチメンチョウ鼻気管炎ウイルス(TRT)の細胞溶解作用を調べるために、3つの細胞系にTRTを2つの感染多重度(MOI)で感染させた。未感染細胞を陰性対照として用いた。細胞溶解の発生をモニターし、感染の3日後から5日間連続で顕微鏡検査により評価した。
細胞系:
CIPp:10% ウシ胎児血清(FBS)、ピルビン酸ナトリウムおよびL−グルタミンで補足されたDMEM/F12内で維持された、一次病変から誘導されたイヌ乳癌細胞。起源:Nobuo Sasaki教授,Laboratory of Veterinary Surgery,Graduate School of Agricultural and Life Sciences,University of Tokyo,Japan。
細胞を96ウェル組織培養プレート内で6000細胞/ウェル(CIPp)または15000細胞/ウェルで播いた(HMPOS、Mel−T4)。細胞を組織培養プレートに付着させ、ついで、PBS中で希釈されたTRTにMOI 1またはMOI 0.1で感染させた。未感染細胞を陰性対照として使用した。30分後、培地(4% FCSで補足されたもの)を全ウェルに加えて、2%のFCSの最終濃度を得た。該細胞を37℃、5% CO2でインキュベートした。感染の3日後から、5日間連続で、Olympus CKX41倒立位相差顕微鏡を使用して、細胞溶解の発生に関して該細胞を視覚的に検査した。
全ての感染細胞系において、様々な現れかた及び度合ではあったが、細胞溶解が観察できた。感染CIPp集団においては、円形細胞が観察された。感染HMPOS細胞は塊状で増殖して、単層における間隙を残した。個々の細胞は円形化した。感染Mel−T4集団においては、単層の著しい破壊および塊状での優先的増殖も観察された(図1)。
Claims (13)
- 生トリメタニューモウイルス(AMPV)の細胞毒性量と医薬上許容される担体とを含むことを特徴とする、イヌ種の哺乳動物における癌治療用の医薬組成物。
- 免疫抑制物質を更に含むことを特徴とする、請求項1記載の医薬組成物。
- 該哺乳動物を免疫抑制物質での治療に付すことを特徴とする、請求項1または2記載の医薬組成物。
- 静細胞化合物を更に含むことを特徴とする、請求項1記載の医薬組成物。
- 該哺乳動物を静細胞化合物での治療に付すことを特徴とする、請求項1または4記載の医薬組成物。
- ウイルス運搬を増強する化合物を更に含むことを特徴とする、請求項1記載の医薬組成物。
- 該哺乳動物を、ウイルス運搬を増強する化合物および/または方法での治療に付すことを特徴とする、請求項1または6記載の医薬組成物。
- 該癌治療が、生AMPVの細胞毒性量を該哺乳動物に投与する工程、およびそれに続く、前記のAMPVの細胞毒性量の投与から2〜56週間のうちに生非AMPVの細胞毒性量を該哺乳動物に投与する工程を含むことを特徴とする、請求項1記載の医薬組成物。
- 該癌治療が、非AMPVの細胞毒性量を該哺乳動物に投与する工程の後の2〜56週間のうちに生AMPVの細胞毒性量を該哺乳動物に投与する工程を含むことを特徴とする、請求項1記載の医薬組成物。
- 該医薬組成物の投与部位が腫瘍内であることを特徴とする、請求項1〜9のいずれか1項記載の医薬組成物。
- 該医薬組成物の投与部位が腫瘍周辺であることを特徴とする、請求項1〜9のいずれか1項記載の医薬組成物。
- 該医薬組成物の投与部位が静脈内であることを特徴とする、請求項1〜9のいずれか1項記載の医薬組成物。
- 該医薬組成物の投与経路が吸入によるものであることを特徴とする、請求項1〜9のいずれか1項記載の医薬組成物。
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EP11162008 | 2011-04-12 | ||
PCT/EP2012/056506 WO2012140032A1 (en) | 2011-04-12 | 2012-04-11 | Avian metapneumovirus in oncolysis |
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CN105296440B (zh) * | 2015-09-08 | 2019-01-04 | 北京市农林科学院 | 一种鸡C型禽偏肺病毒毒株aMPV/C-JCZ及其应用 |
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CN103491970A (zh) | 2014-01-01 |
RU2571925C2 (ru) | 2015-12-27 |
CN108125989A (zh) | 2018-06-08 |
DK2696881T3 (en) | 2016-05-09 |
BR112013025610A2 (pt) | 2016-12-27 |
ES2565198T3 (es) | 2016-04-01 |
EP2696881A1 (en) | 2014-02-19 |
WO2012140032A1 (en) | 2012-10-18 |
RU2013150192A (ru) | 2015-05-20 |
US20140030230A1 (en) | 2014-01-30 |
EP2696881B1 (en) | 2016-02-03 |
JP2014511703A (ja) | 2014-05-19 |
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