JP2016518810A - 新規なバクテリオファージ及びこれを含む抗菌組成物 - Google Patents
新規なバクテリオファージ及びこれを含む抗菌組成物 Download PDFInfo
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- JP2016518810A JP2016518810A JP2015560097A JP2015560097A JP2016518810A JP 2016518810 A JP2016518810 A JP 2016518810A JP 2015560097 A JP2015560097 A JP 2015560097A JP 2015560097 A JP2015560097 A JP 2015560097A JP 2016518810 A JP2016518810 A JP 2016518810A
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- bacteriophage
- φcj21
- clostridium perfringens
- kccm11363p
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Abstract
Description
クロストリジウム・パーフリンジェンスに感染するバクテリオファージの分離
バクテリオファージのスクリーニング及び単一バクテリオファージの分離
韓国・忠清南道の養豚及び養鶏農場で、あるサンファ原種の糞便サンプルから分離した試料50mlを遠心分離管に移し、これを4000rpmで10分間遠心分離した後、その上澄液を0.45μmのフィルターでろ過することによって試料液を準備し、これを用いてソフトアガーオーバーレイ(soft agar overlay)方法を行った。前記ソフトアガーオーバーレイ方法とは、トップ−アガー(top−agar、0.7%の寒天を用いて固体培地上に付けること)で成長する宿主細胞を用いてバクテリオファージの溶菌を観察する方法をいう。
バクテリオファージの大量培養及び精製
上記のようにして選別されたバクテリオファージをクロストリジウム・パーフリンジェンス(BCCP17−1)を用いて大量に培養し、これからバクテリオファージを精製した。
ΦCJ21の形態観察
上記のようにして精製されたバクテリオファージΦCJ21を0.01%のゼラチン溶液で希釈した後、2.5%のグルタルアルデヒド(glutaraldehyde)溶液で固定した。これを炭素コーティングされた雲母板(carbon−coated mica plate(およそ2.5mm×2.5mm))に滴下して10分間適応させた後、滅菌蒸溜水で洗浄した。炭素被膜(carbon film)を銅グリッド(copper grid)上に取り付け、4%の酢酸ウラニル(uranyl acetate)で30秒〜60秒間染色し、乾燥を行った後、透過型電子顕微鏡(JEM−1011、80kV、倍率;120000〜200000倍)で検鏡した(図1)。
ΦCJ21の全体のゲノムDNAサイズの分析
前記超遠心分離を通じて精製されたバクテリオファージΦCJ21からゲノムDNAを抽出した。
ΦCJ21のタンパク質パターン分析
1010pfu/ml力価(titer)の精製されたバクテリオファージΦCJ21溶液15μlと5×SDS試料溶液3μlとを混合して5分間加熱した。その次に、15%のSDS−PAGEゲルでバクテリオファージΦCJ21の全体タンパク質を展開し、クマシーブルー(coomasie blue)染色溶液を用いてゲルを1時間常温で染色した(図3)。
ΦCJ21の全体遺伝子塩基配列の分析
上記のようにして精製したバクテリオファージΦCJ21の遺伝子的特性を調査するために、バクテリオファージΦCJ21のDNAを遺伝子分析機器FLXチタンシーケンサー(titanium sequencer)(Roche)を使用して分析した。(株)マクロジェン(Macrogen Inc.)でGSとデ・ノボアセンブリーソフトウェア(de novo assembler software)(Roche)を使用して遺伝子を組み合わせた。転写解読枠(open reading frame)は、GeneMArk.hmm、Glimmer v3.02及びFGENESBソフトウェアを使用して行われた。BLASTPとインタープロスキャン(InterProScan)プログラムを使用して転写解読枠の名前を注釈付け(annotation)した。
pHによるΦCJ21の安定性の調査
バクテリオファージΦCJ21の低いpHでの安定性を確認するために、様々なpH範囲(pH4.0、5.5、6.4、6.9、7.4、8.2、9.0及び9.8)で安定性の調査実験を実施した。
ΦCJ21の温度による安定性の調査
バクテリオファージの製品剤形のうち飼料添加剤として用いる場合、バクテリオファージの剤形の製剤過程で発生する熱に対する安定性を確認するための実験を行った。
ΦCJ21の乾燥に対する安定性の調査
バクテリオファージの製品剤形のうち飼料添加剤として用いる場合、バクテリオファージの剤形の製剤過程で発生する乾燥条件に対する安定性を確認するための実験を行った。
野生分離株クロストリジウム・パーフリンジェンスに対するΦCJ21の感染範囲の調査
実験に使用されたクロストリジウム・パーフリンジェンス(BCCP17−1)の他に、国立獣医科学検疫院及び建国大学で分離した野生分離株クロストリジウム・パーフリンジェンス45株に対するバクテリオファージΦCJ21の溶菌活性の有無を確認した。
受託番号:KCCM11363P
受託日付:20130130
Claims (8)
- クロストリジウム・パーフリンジェンス(Clostridium perfringens)に特異的な死滅効果を有する新規なバクテリオファージΦCJ21(KCCM11363P)。
- 請求項1に記載のバクテリオファージΦCJ21(KCCM11363P)を有効成分として含むクロストリジウム・パーフリンジェンスによる感染性疾病の予防又は治療用組成物。
- 前記感染性疾病が壊死性腸炎である、請求項2に記載のクロストリジウム・パーフリンジェンスによる感染性疾病の予防又は治療用組成物。
- 請求項1に記載のバクテリオファージΦCJ21(KCCM11363P)を有効成分として含む抗生剤。
- 請求項1に記載のバクテリオファージΦCJ21(KCCM11363P)を有効成分として含む飼料添加剤又は飲用水添加剤。
- 請求項1に記載のバクテリオファージΦCJ21(KCCM11363P)を有効成分として含む消毒剤又は洗浄剤。
- 請求項1に記載のバクテリオファージΦCJ21(KCCM11363P)又は請求項2に記載の組成物を、ヒトを除いた動物に投与する段階を含むクロストリジウム・パーフリンジェンスによる感染性疾病の予防又は治療方法。
- 前記感染性疾病が壊死性腸炎である、請求項7に記載のクロストリジウム・パーフリンジェンスによる感染性疾病の予防又は治療方法。
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KR1020130021499A KR101381797B1 (ko) | 2013-02-27 | 2013-02-27 | 신규 박테리오파지 및 이를 포함하는 항균 조성물 |
PCT/KR2014/001592 WO2014133323A1 (en) | 2013-02-27 | 2014-02-26 | Novel bacteriophage and antibacterial composition comprising the same |
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JP7527497B2 (ja) | 2021-02-25 | 2024-08-02 | シージェイ チェルジェダン コーポレイション | ウェルシュ菌に対する特異的な死滅能を有する新規なバクテリオファージおよびこれを含む抗菌組成物 |
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CN105008525B (zh) | 2017-06-23 |
ES2724298T3 (es) | 2019-09-10 |
JP6110515B2 (ja) | 2017-04-12 |
EP2961835A4 (en) | 2016-08-03 |
US20160076004A1 (en) | 2016-03-17 |
KR101381797B1 (ko) | 2014-04-07 |
CN105008525A (zh) | 2015-10-28 |
BR112015020695A2 (pt) | 2019-11-19 |
WO2014133323A1 (en) | 2014-09-04 |
BR112015020695B1 (pt) | 2023-03-28 |
EP2961835B1 (en) | 2019-04-10 |
PH12015501887B1 (en) | 2015-12-07 |
DK2961835T3 (da) | 2019-07-22 |
EP2961835A1 (en) | 2016-01-06 |
US9745555B2 (en) | 2017-08-29 |
TR201906890T4 (tr) | 2019-06-21 |
PH12015501887A1 (en) | 2015-12-07 |
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