JP6230994B2 - ウイルス剤の送達 - Google Patents
ウイルス剤の送達 Download PDFInfo
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- JP6230994B2 JP6230994B2 JP2014516392A JP2014516392A JP6230994B2 JP 6230994 B2 JP6230994 B2 JP 6230994B2 JP 2014516392 A JP2014516392 A JP 2014516392A JP 2014516392 A JP2014516392 A JP 2014516392A JP 6230994 B2 JP6230994 B2 JP 6230994B2
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- plant material
- bacteriophage
- phage
- lvcc
- wound
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- C12N2795/00—Bacteriophages
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Description
れる、果実、野菜、葉、茎、花、根、塊茎、苗、および種子を含む、幅広い植物材料に適
用される。本発明の実施形態に従って、種子が生存性を維持し、実質的にその表面がL
VCCのキャリア成分となるように、バクテリオファージは種子の表面に直接固定化され
る。そして、貯蔵、発芽、収穫、運搬および販売の間に発生する細菌性植物疾患と闘う手
段を提供する。
ファージが感染力を保持している、植物材料を提供する。
感染した被検体から回収したLVCCを、洗浄して、4℃で保存し、インビトロで生育させたMRSAに対する抗菌活性継続について定期的に評価した。一連の実験において、抗MRSA活性は、細菌叢内に置かれたLVCCにより証明されたように維持された。バクテリオファージ活性(回収されたLVCCの周囲に見られる除去により示される)は保存後数週間にわたっていた−図5参照。
これらの実施例において、LVCCを、活性化されたナイロンポリマーまたは木綿繊維をキャリア基質として用いて生成した。バクテリオファージが付着したLVCCを、一連の環境条件に曝露した。環境条件は、乾燥(バクテリオファージの生残に対する相対湿度の効果によって示される)(図6a参照)、紫外線(図6b参照)および高温(図6c参照)を含む。これら全ての条件は、遊離のバクテリオファージを変性させることが知られている。
結論:付着したファージは無菌箱UVへの30分曝露まで持ちこたえることができる。スタフィロコッカス・アウレウス細菌細胞はUV源に5分間曝露することにより死滅する。
この実施例では、LVCCバクテリオファージの高められた安定性および生存性が、土壌により供給される厳しい条件にさらすことで決定された。研究は、ナイロンポリマーまたはセルロースに固定化されたバクテリオファージを用いた2つのタイプのLVCCの構築を含んだ。次いで、おのおののLVCCを非滅菌または滅菌した土壌に埋め、サンプルを3週間の期間にわたって採取し、LVCCの抗細菌活性を評価した。
2つの異なる標的細菌に対して活性である2つのバクテリオファージを用いて、共通のキャリア基質上に固定し、抗細菌活性を試験したLVCC性能の評価。細菌叢上の除去パーセンテージは、宿主株における各々のファージによる平均除去(mmで測定)に基づく。
10匹の対照動物(ラット)において、傍脊柱筋中に深く切開し、5%の豚胃ムチンに懸濁した100μlの5×107cfu/mlのE15 MRSAを感染させ、傷を通常の縫合により閉じた。同じ切開を有する10匹の試験動物に5%の豚胃ムチンに懸濁した100μlの5×107cfu/mlのE15 MRSAを与え、バクテリオファージ処理フィラメントを深創傷に挿入し、固定化したバクテリオファージはファージKであった。
バクテリオファージの調製
我々は、ペクトバクテリウム・カロトバラム株を20%トリプチック・ソイ・ブロス(他の適切な培地も知られている)上で生育させ、対数増殖期に培養物に溶菌性バクテリオファージを感染させた。溶菌が起こると、我々は、遠心によりバクテリオファージを精製し、蒸留水に再懸濁し、遠心により濃縮することにより、バクテリオファージペレットを3度洗浄した。
トマト種子を、75kVで1秒間コロナ場で処理し、次いでバクテリオファージ懸濁液中に浸漬した(代替としては、処理した種子をバクテリオファージ懸濁液でスプレーすることである)。我々は、水で3回種子を洗浄し、結合していないバクテリオファージを除去した(代替としては、コロナ処理の前に種子にバクテリオファージ懸濁液を適用することである)。他の場強度もまた効果的であり、洗浄は、観察された抗細菌効果が、吸着した「遊離の」バクテリオファージよりも共有結合したバクテリオファージにより生じるものであることを証明するためにのみ必要であることに留意されたい。
それゆえ、我々は、(i)非処理、(ii)コロナ放電処理、(iii)バクテリオファージ存在下でコロナ放電処理および(iv)遊離のバクテリオファージ処理の種子を調製し、それらの種子をシャーレ内にて水で湿らせた濾紙上で、室温で発芽させた(代替としては、ペクトバクテリウムの存在下および非存在下で、トリプチック・ソイ寒天(ブロスに2%寒天を加えたもの)上で発芽させることである)。
トマト種子は、コロナ(図15)および抗ペクトバクテリウムファージとコロナ(図14)において、対照区(図13、コロナ無し)およびファージ無し(図16)に比べ、発芽が増進された。適切なペクトバクテリウム株(使用したバクテリオファージに感受性の)を接種した寒天上で、コロナおよび抗ペクトバクテリウムファージで処理した種子の周りに、除去ゾーンは、見られる。トマト種子表面は、主としてセルロースである。そこで、我々は、セルロース粒子上に固定化したバクテリオファージの生存性を別途テストした−下記参照。
我々は、WO2007/072049のコロナ放電方法後のセルロース粉末(サイズの範囲は、約100ミクロン−1mm)の上にペクトバクテリウムファージを固定化した。
我々は、WO2007/072049のコロナ放電方法後のセルロース粉末(サイズ範囲は約100ミクロン−1mm)上にペクトバクテリウムファージを固定した。
(ii)溶液中の遊離のファージおよび(iii)溶液中のセルロース粒子に付着したファージで処理した。そしてバクテリア除去において同様の活性が観察されるまで、(ii)および(iii)を滴定した。同様の活性は、セルロース粒子に1つのファージが付着したときに比べて、約100の遊離のファージが使用されたときに起こった。これにより、遊離のファージに比べて固定化されたファージの改善された特性を確認した。
Claims (16)
- バクテリオファージが共有結合によって付着されている植物材料であって、該植物材料が、種子、根および塊茎から選択され、そして該バクテリオファージが感染力を保持している、植物材料。
- 消費用種子または種子ストックである、請求項1に記載の植物材料。
- 前記種子がトマト種子である、請求項2に記載の植物材料。
- 植物疾患の予防または治療における使用のための、請求項1から3のいずれかに記載の植物材料。
- 前記植物材料を摂食する動物の疾患の予防または治療における使用のための、請求項1から3のいずれかに記載の植物材料。
- 消化管内での細菌感染の予防または治療における使用のための、請求項5に記載の植物材料。
- 鳥類の疾患の予防または治療における使用のための、請求項5または6に記載の植物材料。
- 前記バクテリオファージが粒子に共有結合によって付着され、かつ、該粒子が前記植物材料に共有結合によって付着されている、請求項1から7のいずれかに記載の植物材料。
- 植物材料を処理する方法であって、該植物材料が、種子、根および塊茎から選択され、該植物材料を化学的または電気的に活性化させる工程、および次いで該活性化植物材料にバクテリオファージを共有結合によって付着させる工程を含み、該バクテリオファージが感染力を保持している、方法。
- 前記植物材料が消費用種子または種子ストックを含む、請求項9に記載の方法。
- 前記バクテリオファージを粒子または複数粒子に共有結合によって付着させる工程、および該粒子または該複数粒子を前記植物材料に共有結合によって付着させる工程を含む、請求項9または10に記載の方法。
- 植物材料を摂食する動物の疾患の治療または予防における使用のための植物材料を処理する方法であって、該植物材料が、果実、野菜、葉、茎、花、根、塊茎、および苗から選択され、バクテリオファージが共有結合によって付着された複数粒子の水性製剤を植物材料と接触させて、該バクテリオファージ、該粒子および該植物材料の組み合わせを得る工程、および該組み合わせを乾燥させて該複数粒子を該植物材料に付着させる工程を含む、方法。
- 請求項1から8のいずれかに記載の植物材料を含む組成物。
- (i)フィラメント、(ii)平面材料、ならびに(iii)粒子および/またはビーズから選択されるキャリアと該キャリアに共有結合によって付着されたバクテリオファージとを含む組成物であって、深創傷における細菌感染の治療または予防に用いられ、該組成物は、次いで閉鎖される深創傷内に設置され、そして該バクテリオファージが感染力を保持している、組成物。
- 前記キャリアが、生分解性および/または生体適合性である、請求項14に記載の組成物。
- 前記キャリアがフィラメントである、請求項14または15に記載の組成物。
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GBGB1110647.3A GB201110647D0 (en) | 2011-06-23 | 2011-06-23 | Delivery of viral agents |
GB1110647.3 | 2011-06-23 | ||
PCT/EP2012/062270 WO2012175749A1 (en) | 2011-06-23 | 2012-06-25 | Delivery of viral agents |
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JP2014528694A JP2014528694A (ja) | 2014-10-30 |
JP2014528694A5 JP2014528694A5 (ja) | 2015-08-13 |
JP6230994B2 true JP6230994B2 (ja) | 2017-11-15 |
JP6230994B6 JP6230994B6 (ja) | 2020-09-09 |
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EP (1) | EP2723356B1 (ja) |
JP (1) | JP6230994B6 (ja) |
CN (1) | CN103747792B (ja) |
BR (1) | BR112013032990A2 (ja) |
ES (1) | ES2758879T3 (ja) |
GB (1) | GB201110647D0 (ja) |
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GB201217097D0 (en) | 2012-09-25 | 2012-11-07 | Fixed Phage Ltd | Treatment of bacterial infection |
US20150209392A1 (en) * | 2014-01-24 | 2015-07-30 | The Procter & Gamble Company | Filaments Comprising a Microorganism and Method for Making Same |
US20150209468A1 (en) * | 2014-01-24 | 2015-07-30 | The Procter & Gamble Company | Hygiene article containing microorganism |
EP3097183A1 (en) * | 2014-01-24 | 2016-11-30 | The Procter & Gamble Company | Web comprising a microorganism-containing fibrous element and method for making same |
EP3096620A1 (en) * | 2014-01-24 | 2016-11-30 | The Procter & Gamble Company | Fibrous structures comprising a surface care composition and a bacteriophage |
US11252966B2 (en) | 2014-01-24 | 2022-02-22 | The Procter & Gamble Company | Fibrous structures comprising a surface care composition and methods for making and using same |
GB201402139D0 (en) * | 2014-02-07 | 2014-03-26 | Fixed Phage Ltd | Treatment of topical and systemic bacterial infections |
TWI581771B (zh) * | 2015-04-14 | 2017-05-11 | 財團法人紡織產業綜合研究所 | 傷口護理用敷材 |
EP3461345A1 (en) * | 2017-09-28 | 2019-04-03 | Fixed Phage Limited | Anti-bacterial packaging |
EP3616730A1 (en) * | 2018-08-28 | 2020-03-04 | UPM-Kymmene Corporation | Composition or matrix for storage of bacteriophages comprising nanofibrillar cellulose |
CN113543875A (zh) * | 2018-11-22 | 2021-10-22 | 固定噬菌体有限公司 | 产生固定噬菌体 |
US20220183324A1 (en) * | 2019-04-10 | 2022-06-16 | Fixed Phage Limited | Continuous treatment with plasma |
EP4136974A1 (en) | 2021-08-20 | 2023-02-22 | Fixed Phage Limited | Plasma treatment process and apparatus therefor |
WO2023152491A1 (en) * | 2022-02-08 | 2023-08-17 | Oxford Silk Phage Technologies Ltd | Method and apparatus for making an article from filaments containing bacteriophages |
CN115006581A (zh) * | 2022-06-02 | 2022-09-06 | 武汉军旭实业有限责任公司 | 一种伤口防护用材料及其制备方法 |
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US4828999A (en) * | 1986-07-21 | 1989-05-09 | Jackson Le Roy E | Bacteriophage prevention and control of harmful plant bacteria |
GB0209680D0 (en) * | 2002-04-27 | 2002-06-05 | Univ Strathclyde | Immobilisation and stabilisation of bacteriophage |
CN1914364B (zh) * | 2004-02-26 | 2010-12-15 | 国立大学法人山梨大学 | 被拉伸了的极细的生物降解性纤维丝 |
CA2586619A1 (en) | 2004-11-02 | 2006-05-11 | Gangagen Life Sciences Inc. | Bacteriophage compositions |
MX2007014837A (es) * | 2005-05-26 | 2008-02-21 | Gangagen Life Sciences Inc | Administracion bacterial en sistemas de retencion de animales. |
GB0526176D0 (en) | 2005-12-22 | 2006-02-01 | Blaze Venture Technologies Ltd | Particle binding |
DE102007054127A1 (de) | 2007-11-11 | 2009-05-14 | Birgit Riesinger | Hygiene- oder Pflegeartikel, aufweisend einen Anteil an hydroaktiven Polymeren, und eine Zubereitung aufweisend Bakteriophagen oder mindestens einen Bestandteil derselben |
GB201217097D0 (en) * | 2012-09-25 | 2012-11-07 | Fixed Phage Ltd | Treatment of bacterial infection |
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WO2012175749A1 (en) | 2012-12-27 |
EP2723356A1 (en) | 2014-04-30 |
BR112013032990A2 (pt) | 2017-08-01 |
JP2014528694A (ja) | 2014-10-30 |
GB201110647D0 (en) | 2011-08-10 |
CN103747792A (zh) | 2014-04-23 |
US20140208464A1 (en) | 2014-07-24 |
EP2723356B1 (en) | 2019-09-11 |
US9539343B2 (en) | 2017-01-10 |
CN103747792B (zh) | 2017-08-29 |
ES2758879T3 (es) | 2020-05-06 |
JP6230994B6 (ja) | 2020-09-09 |
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