JP2013524814A5 - - Google Patents

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JP2013524814A5
JP2013524814A5 JP2013506301A JP2013506301A JP2013524814A5 JP 2013524814 A5 JP2013524814 A5 JP 2013524814A5 JP 2013506301 A JP2013506301 A JP 2013506301A JP 2013506301 A JP2013506301 A JP 2013506301A JP 2013524814 A5 JP2013524814 A5 JP 2013524814A5
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bacterium
sample
bacteria
item
cfu
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JP6023698B2 (ja
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本発明の別の態様は、血液試料中の1CFU/mlという低い濃度の細菌を単離するための方法であって、約100nmから約250nmの直径を有し、細菌特異的結合部分を有する超常磁性粒子を体液試料に導入して混合物を作製すること、上記混合物をインキュベートして上記粒子を細菌に結合させること、細菌/磁気粒子複合体を表面上に単離するために磁場を加えること、および粒子凝集を低減する洗浄溶液で混合物を洗浄し、それによって血液試料中の生存可能な1CFU/mlという低い濃度の細菌を単離することを含む方法を提供する。
本発明の好ましい実施形態において、例えば以下の項目が提供される。
(項目1)
試料から細菌を単離するための方法であって、
細菌を含む試料を得る工程と;
前記試料について、前記試料から前記細菌を単離するアッセイを実行する工程であって、前記アッセイは、前記試料中の約1CFU/mlという低い濃度の細菌を単離する工程と
を含む、方法。
(項目2)
前記試料がヒトの組織または体液である、項目1に記載の方法。
(項目3)
前記体液が血液である、項目2に記載の方法。
(項目4)
前記細菌が血液由来細菌である、項目3に記載の方法。
(項目5)
前記試料が食物試料である、項目1に記載の方法。
(項目6)
前記細菌が食物由来細菌である、項目5に記載の方法。
(項目7)
前記細菌を特徴づける工程をさらに含む、項目1に記載の方法。
(項目8)
特徴づける工程が前記細菌を同定する工程を含む、項目7に記載の方法。
(項目9)
同定する工程が前記細菌に由来する核酸を配列決定する工程、または前記細菌に由来する核酸を増幅する工程から選択される、項目8に記載の方法。
(項目10)
前記細菌がグラム陽性細菌である、項目1に記載の方法。
(項目11)
前記細菌がグラム細菌である、項目1に記載の方法。
(項目12)
試料から細菌を単離するための方法であって、
細菌を含む試料を得る工程と;
前記試料から前記細菌を単離するために磁気粒子を用いてアッセイを行う工程であって、前記磁気粒子は、前記アッセイが前記試料中の約1CFU/mlという低い濃度の細菌を単離するようなサイズであり、かつそのような量の磁性材料を含む工程と
を含む、方法。
(項目13)
前記磁気粒子が細菌特異的結合部分を含む、項目12に記載の方法。
(項目14)
前記細菌特異的結合部分が抗体である、項目13に記載の方法。
(項目15)
前記試料がヒトの組織または体液である、項目12に記載の方法。
(項目16)
前記体液が血液である、項目15に記載の方法。
(項目17)
前記細菌が血液由来細菌である、項目16に記載の方法。
(項目18)
前記試料が食物試料である、項目12に記載の方法。
(項目19)
前記細菌が食物由来細菌である、項目18に記載の方法。
(項目20)
前記細菌を特徴づける工程をさらに含む、項目12に記載の方法。
(項目21)
特徴づける工程が、前記細菌を同定する工程を含む、項目20に記載の方法。
(項目22)
同定する工程が、前記細菌に由来する核酸を配列決定する工程、または前記細菌に由来する核酸を増幅する工程から選択される、項目21に記載の方法。
(項目23)
前記細菌がグラム陽性細菌である、項目12に記載の方法。
(項目24)
前記細菌がグラム細菌である、項目12に記載の方法。
(項目25)
試料から細菌を単離するための方法であって、
細菌を含む試料を得る工程と;
前記試料から前記細菌を単離するために磁気粒子を用いてアッセイを行う工程であって、前記磁気粒子は、前記試料中の約1CFU/mlという低い濃度の細菌の単離を可能にする磁気モーメントを有する工程と
を含む、方法。

Claims (24)

  1. 試料から細菌を単離するための方法であって、
    約1CFU/mlまたは1CFU/ml未満の細菌を含む試料を得る工程と;
    磁気粒子であって、前記細菌に特異的に結合する結合部分を前記磁気粒子に結合させた磁気粒子を含む混合物中で前記試料をインキュベートする工程と;
    前記磁気粒子に負電荷を付与する溶液中で前記混合物を洗浄する工程と;
    前記混合物から前記1CFU/mlまたは1CFU/ml未満前記細菌を単離する工程と
    を含む、方法。
  2. 前記試料がヒトの組織または体液である、請求項1に記載の方法。
  3. 前記体液が血液である、請求項2に記載の方法。
  4. 前記細菌が血液由来細菌である、請求項3に記載の方法。
  5. 前記試料が食物試料である、請求項1に記載の方法。
  6. 前記細菌が食物由来細菌である、請求項5に記載の方法。
  7. 前記細菌を特徴づける工程をさらに含む、請求項1に記載の方法。
  8. 前記特徴づける工程が前記細菌を同定する工程を含む、請求項7に記載の方法。
  9. 細胞溶解阻害剤を前記混合物に導入する工程をさらに含む、請求項に記載の方法。
  10. 前記細菌がグラム陽性細菌である、請求項1に記載の方法。
  11. 前記細菌がグラム陰性細菌である、請求項1に記載の方法。
  12. 試料から細菌を単離するための方法であって、
    1CFU/mlまたは1CFU/ml未満の細菌を含む試料を得る工程と;
    細菌特異的結合部分を含む磁気粒子を前記試料に導入する工程と;
    粒子凝集を低減する溶液中で前記試料をインキュベートする工程と;
    前記試料を洗浄する工程と;
    前記1CFU/mlまたは1CFU/ml未満の前記細菌を単離する工程と
    を含む、方法。
  13. 前記インキュベートする工程が、約10秒から約2時間行われる、請求項12に記載の方法。
  14. 前記細菌特異的結合部分が抗体である、請求項1に記載の方法。
  15. 前記試料がヒトの組織または体液である、請求項12に記載の方法。
  16. 前記体液が血液である、請求項15に記載の方法。
  17. 前記細菌が血液由来細菌である、請求項16に記載の方法。
  18. 前記試料が食物試料である、請求項12に記載の方法。
  19. 前記細菌が食物由来細菌である、請求項18に記載の方法。
  20. 前記細菌を特徴づける工程をさらに含む、請求項12に記載の方法。
  21. 特徴づける工程が、前記細菌を同定する工程を含む、請求項20に記載の方法。
  22. 同定する工程が、前記細菌に由来する核酸を配列決定する工程、または前記細菌に由来する核酸を増幅する工程から選択される、請求項21に記載の方法。
  23. 前記細菌がグラム陽性細菌である、請求項12に記載の方法。
  24. 前記細菌がグラム陰性細菌である、請求項12に記載の方法。
JP2013506301A 2010-04-21 2011-04-21 試料からの低濃度の細菌の抽出 Active JP6023698B2 (ja)

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US32658810P 2010-04-21 2010-04-21
US61/326,588 2010-04-21
PCT/US2011/033410 WO2011133759A1 (en) 2010-04-21 2011-04-21 Extractin low concentrations of bacteria from a sample

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EP (5) EP2561360B9 (ja)
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CA (4) CA2796767C (ja)
ES (3) ES2774393T3 (ja)
WO (4) WO2011133630A1 (ja)

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