JP5292278B2 - バクテリオファージ組成物の製造方法およびファージ治療分野における方法 - Google Patents
バクテリオファージ組成物の製造方法およびファージ治療分野における方法 Download PDFInfo
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- JP5292278B2 JP5292278B2 JP2009503678A JP2009503678A JP5292278B2 JP 5292278 B2 JP5292278 B2 JP 5292278B2 JP 2009503678 A JP2009503678 A JP 2009503678A JP 2009503678 A JP2009503678 A JP 2009503678A JP 5292278 B2 JP5292278 B2 JP 5292278B2
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- MYPYJXKWCTUITO-LYRMYLQWSA-O vancomycin(1+) Chemical compound O([C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=C2C=C3C=C1OC1=CC=C(C=C1Cl)[C@@H](O)[C@H](C(N[C@@H](CC(N)=O)C(=O)N[C@H]3C(=O)N[C@H]1C(=O)N[C@H](C(N[C@@H](C3=CC(O)=CC(O)=C3C=3C(O)=CC=C1C=3)C([O-])=O)=O)[C@H](O)C1=CC=C(C(=C1)Cl)O2)=O)NC(=O)[C@@H](CC(C)C)[NH2+]C)[C@H]1C[C@](C)([NH3+])[C@H](O)[C@H](C)O1 MYPYJXKWCTUITO-LYRMYLQWSA-O 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Description
後述するように、ファージ治療に対する用量は、106〜1013pfu/Kg体重/日の範囲であり、1012pfu/Kg体重/日が好ましい用量として提案されている。ファージ生産のための一般的な液体培養方法によれば、1人あたりのバクテリオファージの日用量に相当するファージ収率を得るには、5〜10リットルの量を生産することが必要になる。したがって、1つの特定のファージ型のファージストック組成物の工業的生産には、何千リットルもの量の培地での培養を行うことになり、それには大容量の発酵槽を複数個稼働させる必要がある。
バクテリオファージ:免疫におけるその役割;ウィリアムス・アンド・ウィルキンス社;ウェーバリー・プレス、米国ボルティモア、1922年 サイエンス、第298巻、728〜731頁、2002年
液体および半固形培地については当業者の知るところである。
好ましい実施形態によれば、本発明の方法は、バクテリオファージストック組成物の品質を高めるため、または製造手順を易化するための他の工程をさらに含んでもよく、そのような工程としては、特に限定されないが、周期的な滴定(tittering)、精製、自動化、調合などが含まれる。
キノロン類およびその誘導体は、当業者に周知である。そのような化合物の一例としては、シノキサシン、シプロフロキサシン、エノキサシン、フレロキサシン、フロセキナン、フルメキン、ポメフロキサシン、ナリジクス酸、ノルフロキサシン、オフロキサシン、オキソリン酸、ペフロキサシン、ピペミド酸、ピロミド酸、ロソキサシン、およびスパルフロキサシンを挙げることができる。
レビウィルス科もまた、線形のプラス鎖一本鎖RNAゲノムを有するRNAバクテリオファージに相当し、エンテロバクター、カウロバクターおよびシュードモナスに感染する。この科には、細胞溶解に対して別個の遺伝子を有しないアロレビウィルスと、細胞溶解に対する別個の遺伝子を有するレビウィルスが含まれる。
マイオウィルス科は、複合収縮性の尾部を特徴とするバクテリオファージからなり、その例としては、バクテリオファージμ,Pl,P2、およびT4が挙げられる。最も好ましくは、マイオウィルス科は、「T4様」属のバクテリオファージを含む。
サイフォウィルス科は、長い非収縮性の尾部を特徴とするバクテリオファージからなり、その例としては、バクテリオファージhk022、λ、T5、BF23が挙げられる。
別の実施形態によれば、本発明は、バクテリオファージ、好ましくは、前記細菌感染に関与する細菌株の少なくとも1つに対して感染性のあるバクテリオファージの使用をも意図する。このようなバクテリオファージは、前述したものから選択することができる。
実施例
1)抗生物質の存在下で増殖するファージによって生産される異常な細菌溶解プラークの同定
重篤な尿路感染症で入院している小児から単離した細菌の抗生物質感受性を調べるために、また時間を節約するために、小児の尿の希釈物を栄養ペトリ皿に直接接種し、一連の抗生物質感受性試験ディスクを寒天の表面上に置いた。
2)MFP細菌株上で増殖させた場合のβ−ラクタム抗生物質(ATMおよびCFM)と、φmFバクテリオファージの相乗作用
この大きめのファージプラークの出現を確認するために、非感染尿路感染性大腸菌(MFP)の単一コロニーと、混入したファージ(φmF)のプラークを、Mark H.ADAMS(バクテリオファージ,1959年、インターサイエンス・パブリッシャーズ、ニューヨーク)に記載されるように、元の尿試料から単離した。
抗生物質とファージ増殖の間の相乗作用を種々のバクテリオファージ株を用いて調べるために、MFP細菌株のこの効果について、系統的に多様なT4型ファージの多数の組を用いて調べた。
他の細菌株との相乗作用を調べるために、ATMまたはCTXのいずれかの存在下で同一のバクテリオファージT4で感染させた様々な細菌宿主株において、ファージプラークの大きさを調べた。
バクテリオファージとβ−ラクタム抗生物質の間の相互作用の程度と普遍性をさらに調べるために、一連の種々のT4型ファージ株を用いて、それらにおける本効果の発現について調べた。この実験および以後の研究の大半のために選んだ細菌宿主は、抗生物質透過性変異体である大腸菌AS19である。この株は一般に、広範なT4型ファージとの間に最も実質的な相乗効果を与える。
この相乗作用が他の抗生物質によっても媒介されるかどうかを調べるために、AS19細菌株を系統的に多様な一連のT型ファージ、および種々のクラスの抗生物質の多様な組を用いて調べた。
抗生物質の存在下または非存在下における感染細菌株におけるファージ複製の増大を定量的に判定するために、3種のT型バクテリオファージ株、すなわちT4,RB33およびRB49で感染させたAS19細菌株の種々の培養物を、CTX(0.003または0.03μg/mL)存在下または非存在下のいずれかのLB液体培地中で90分間インキュベートし、感染した培養物をクロロホルムで溶解し、ファージ力価をADAMS(バクテリオファージ、インターサイエンス・パブシッシャーズ、ニューヨーク、1959年)に記載のようにして決定した。
AS19細菌株の培養に対する低用量のβ−ラクタム抗生物質CTXの効果を調べるために、この細菌株を、T4ファージに感染した場合に実質的な相乗効果を与えるような用量レベル(0.003μg/mL)のCTXとともにLB液体培地中で増殖させた。CTX処理を行わない対照培養と比較した場合、この低い薬物量においてさえ、コロニー形成ユニットによってアッセイした細胞生存率はほとんど影響されないものの、細胞分裂は阻害されている(図3Aおよび3B)。薬物で処理した培養の光学密度が、薬物の添加後少なくとも2時間のあいだは増加し続けることから、薬物の非存在下で通常起こるような分裂ではなく、非分裂細胞が体積的に成長し続けて長い線維状細胞を生産しているようである。
Claims (8)
- バクテリオファージストック組成物の製造方法であって、
(a)少なくとも1つの細菌株と、前記細菌株に感染する少なくとも1つのバクテリオファージ株と、少なくとも1つの抗生物質とを含む培地をインキュベートする工程であって、培地中の前記抗生物質の濃度は、前記バクテリオファージ株の非存在下における前記細菌株の増殖を0.1%〜99.9%阻害する範囲であること、
(b)細菌の溶解が起こるまで培地のインキュベーションを続け、これによりバクテリオファージ溶解物を得る工程と、
(c)培地から粗バクテリオファージ抽出物を調製する工程と
を備え、前記抗生物質はチカルシリン、セフトリアキソン、セフォタキシム、セフィキシム、アンピシリン、ピペラシリン、アズトレオナム及びナリジクス酸からなる群より選ばれる少なくとも一つであり、前記バクテリオファージはT4、T6、T2、AC3、K3、OX2、RB5、RB14、RB33、RB42、RB43、RB49、φ1、RB69、PST、SV76、C16、MI、697及び699からなる群より選ばれる、方法。 - 培地中の前記抗生物質の濃度は、前記バクテリオファージの非存在下における前記細菌株の増殖を1%〜99%阻害する範囲である請求項1に記載の方法。
- 培地中の前記抗生物質の濃度は、前記バクテリオファージの非存在下における前記細菌株の増殖を10%〜90%阻害する範囲である請求項1に記載の方法。
- 培地中の前記抗生物質の濃度は、前記バクテリオファージの非存在下における前記細菌株の増殖を20%〜80%阻害する範囲である請求項1に記載の方法。
- 培地中の前記抗生物質の濃度は、前記バクテリオファージの非存在下における前記細菌株の増殖を40%〜60%阻害する範囲である請求項1に記載の方法。
- 培地は液体培地である請求項1に記載の方法。
- 前記細菌株は、ブドウ球菌、好血菌、ヘリコバクター、ミコバクテリウム、連鎖球菌、ナイセリア、クレブシエラ、エンテロバクター、プロテウス、バクテロイド、シュードモナス、ボレリア、シトロバクター、エシェリキア、エルシニア、サルモネラ、プロピオニバクテリウム、トレポネーマ、シゲラ、腸球菌およびレプトスピレックスからなる群において選択される請求項1に記載の方法。
- 前記バクテリオファージは、細菌感染を患った個人から事前に採取した試料から回収されたものである請求項1に記載の方法。
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PCT/IB2007/000880 WO2007113657A1 (en) | 2006-04-04 | 2007-04-03 | Process of production of bacteriophage compositions and methods in phage therapy field |
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EP (1) | EP2004800B1 (ja) |
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WO2013191363A1 (ko) * | 2012-06-22 | 2013-12-27 | 주식회사 씨티씨바이오 | 신규한 박테리오파지 및 병원성 박테리아 증식 억제 용도 |
EP2978857A2 (en) | 2013-03-27 | 2016-02-03 | Sample Technologies, Inc. | Recombinant phage and bacterial detection methods |
WO2014205221A2 (en) * | 2013-06-19 | 2014-12-24 | Sample6 Technologies, Inc. | Phage-based bacterial detection assay |
DE102013106455A1 (de) | 2013-06-20 | 2014-12-24 | Airbus Defence and Space GmbH | Verfahren zur Dekontamination von bakteriologischen Verunreinigungen |
WO2017177196A1 (en) | 2016-04-08 | 2017-10-12 | The Trustees Of Princeton University | Novel antimicrobial compositions and methods of use |
KR101822812B1 (ko) * | 2017-02-22 | 2018-01-29 | 주식회사 인트론바이오테크놀로지 | 신규한 엔테로코쿠스 패슘 박테리오파지 Ent-FAP-4 및 이의 엔테로코쿠스 패슘 증식 억제 용도 |
KR101915486B1 (ko) | 2017-05-10 | 2018-11-08 | 주식회사 인트론바이오테크놀로지 | 신규한 비브리오 파라헤몰리티쿠스 박테리오파지 Vib-PAP-7 및 이의 비브리오 파라헤몰리티쿠스 균 증식 억제 용도 |
KR101915480B1 (ko) * | 2017-05-10 | 2018-11-08 | 주식회사 인트론바이오테크놀로지 | 신규한 비브리오 파라헤몰리티쿠스 박테리오파지 Vib-PAP-6 및 이의 비브리오 파라헤몰리티쿠스 균 증식 억제 용도 |
KR101909831B1 (ko) * | 2017-08-28 | 2018-10-18 | 한국외국어대학교 연구산학협력단 | 반응성 산소종을 포함하는 박테리오파아지의 생산량 증가 조성물 및 방법 |
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