JP5253451B2 - 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 - Google Patents
試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 Download PDFInfo
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Description
本発明は、2003年8月15日に提出された米国特許出願第10/604,779号および2004年1月14日に提出された米国仮出願第60/481,892号の恩典を主張し、その開示内容全体が参照として本明細書に組み入れられる。
生物テロ(BT)および生物戦争の脅威が、臨床現場への課題を提示しているが、これには、BT物質を検出するための高速かつ高感度な技術が最適である。末梢血試料は、感染性生物種の濃度が低い場合でも検出できるようであれば、生物攻撃の初期的および特異的な臨床的および疫学的な管理に貢献するだろう。確実かつ最近感染した不安な患者は、初期薬理学的介入によって心理学的にも物理学的にも利益を受けるだろう。
本発明は、多量の血液などの生物試料から感染性病原体を抽出する方法に関し、病原体を閉じこめたフィブリン凝集体を製造する工程、ならびにフィブリン溶解試薬を導入することで分析用病原体およびDNA分解酵素を曝露してDNA抽出を容易にする工程を含む。フィブリン溶解試薬は、フィブリン溶解試薬が必要となるまで一致した関係で冷凍された、DNA分解酵素、プラスミノーゲン、およびストレプトキナーゼで構成されてもよく、これによりストレプトキナーゼは、解凍およびフィブリン試料への導入の際にプラスミノーゲンと酵素的に反応し、プラスミンを形成する。好ましくは、プラスミノーゲンは冷凍前に、NaClおよびNa3PO4含有食塩水溶液に懸濁される。フィブリン溶解試薬は、好ましくは、DNA分解酵素およびホスホリパーゼA2で構成される。DNA分解酵素は、上述のプロトコルの結果生じるペレット状の血液成分の化学的および物理的な破壊を容易にするために用いられる。ホスホリパーゼA2は、リン脂質二重層を壊し、その結果核膜を破壊するヒトDNAの消化を助けるために用いられる。
尿素 6.0〜7.5M
メチル6-O-(N-ヘプチルカルバモイル)-α-D-グルコピラノシド 10〜20mg/ml
プロテイナーゼK 600〜1,000μg/ml
EDTA 20〜70mM
DTPA 20〜70mM
クエン酸ナトリウム 120mM
水酸化ナトリウム pH8.0まで添加
Claims (22)
- アウリントリカルボン酸(ATA)および核酸を含む試料から核酸を抽出する方法であって、該方法が
尿素およびジエチレントリアミン五酢酸(DTPA)を含む組成物と試料とを接触させる工程;および
核酸を抽出する工程であって、これによりATAが核酸とともに精製されない工程、
を含む方法。 - 試料中の尿素の濃度が6.0〜7.5Mである、請求項1記載の方法。
- 組成物がクエン酸ナトリウムをさらに含む、請求項1または2記載の方法。
- 組成物が水酸化ナトリウムをさらに含む、請求項1〜3のいずれか一項記載の方法。
- 組成物がメチル6-O-(N-ヘプチルカルバモイル)-α-D-グルコピラノシドをさらに含む、請求項1〜4のいずれか一項記載の方法。
- 組成物がプロテイナーゼKをさらに含む、請求項1〜5のいずれか一項記載の方法。
- 組成物がエチレンジアミン四酢酸をさらに含む、請求項1〜6のいずれか一項記載の方法。
- 試料のpHを約8.0にする、請求項1〜7のいずれか一項記載の方法。
- 試料を加熱する工程をさらに含む、請求項1〜8のいずれか一項記載の方法。
- 試料がカオトロピック塩をさらに含む、請求項1〜9のいずれか一項記載の方法。
- 試料とカオトロピック塩とを接触させる段階をさらに含む、請求項1〜10のいずれか一項記載の方法。
- 組成物が乾燥粉末である、請求項1〜11のいずれか一項記載の方法。
- 組成物を試料と合わせる前に尿素およびDTPAの溶液を少なくとも600℃まで加熱する事前工程を含む、請求項1〜12のいずれか一項記載の方法。
- 尿素およびDTPAの溶液を約4時間加熱する、請求項13記載の方法。
- 核酸抽出が結合および/または洗浄工程を含み、かつ、結合および洗浄工程に使用する試薬が、結合および洗浄工程に使用する試薬と試料との接触工程の前または最中に55〜65℃まで加熱される、請求項1〜14のいずれか一項記載の方法。
- 試料とウレアーゼを接触させる工程をさらに含む、請求項1〜9のいずれか一項記載の方法。
- 試料1 mlあたり1,000〜100,000ユニットのウレアーゼを添加する、請求項16記載の方法。
- 試料が血液である、請求項1〜17のいずれか一項記載の方法。
- 試料が、細菌に結合するペプチドと共に機能するようにされた固相粒子に結合した細菌であり、該細菌が、アウリントリカルボン酸をさらに含む組成物中の該粒子に結合する、請求項1〜18のいずれか一項記載の方法。
- 細菌に結合するペプチドが、アミノ酸含量について改変されたまたはされていない、セクロピンP1、プロタミン、ブフォリン(Buforin)I、ブフォリンII、ディフェンシン、D-マガイニンII、セクロピンA、セクロピンB、レクチンPA-1、およびトリトロプチシン(Tritrpticin)、ならびにこれらの塩、エステル、アミド、およびアシル化型より選択される、請求項19記載の方法。
- 尿素およびジエチレントリアミン五酢酸(DTPA)を含む組成物が事前に加熱される、請求項1〜12または15〜19のいずれか一項記載の方法。
- 核酸がDNAである、請求項1〜21のいずれか一項記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/604,779 | 2003-08-15 | ||
US10/604,779 US7998699B2 (en) | 2002-08-15 | 2003-08-15 | Early detection of pathogens in blood |
US48189204P | 2004-01-14 | 2004-01-14 | |
US60/481,892 | 2004-01-14 |
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JP2006523971A Division JP4662932B2 (ja) | 2003-08-15 | 2004-08-16 | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
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JP2012225730A Division JP2013005819A (ja) | 2003-08-15 | 2012-10-11 | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
JP2012225733A Division JP2013039134A (ja) | 2003-08-15 | 2012-10-11 | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
JP2012225738A Division JP2013005820A (ja) | 2003-08-15 | 2012-10-11 | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
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JP2010193901A JP2010193901A (ja) | 2010-09-09 |
JP5253451B2 true JP5253451B2 (ja) | 2013-07-31 |
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JP2006523971A Expired - Fee Related JP4662932B2 (ja) | 2003-08-15 | 2004-08-16 | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
JP2010108850A Expired - Fee Related JP5253451B2 (ja) | 2003-08-15 | 2010-05-11 | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
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US (12) | US7416843B2 (ja) |
EP (3) | EP2103694B1 (ja) |
JP (2) | JP4662932B2 (ja) |
AT (2) | ATE510931T1 (ja) |
AU (2) | AU2004269340B2 (ja) |
DE (1) | DE602004020999D1 (ja) |
DK (2) | DK2103694T3 (ja) |
ES (1) | ES2325445T3 (ja) |
NO (1) | NO20061189L (ja) |
PL (2) | PL1654387T3 (ja) |
PT (2) | PT1654387E (ja) |
SI (1) | SI1654387T1 (ja) |
WO (1) | WO2005021799A2 (ja) |
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US7998699B2 (en) | 2002-08-15 | 2011-08-16 | University Of South Florida | Early detection of pathogens in blood |
JP4662932B2 (ja) | 2003-08-15 | 2011-03-30 | ユニバーシティー オブ サウス フロリダ | 試料からの病原体の捕獲およびアウリントリカルボン酸除去のための物質および方法 |
CY1110678T1 (el) * | 2003-08-15 | 2015-06-10 | University Of South Florida | Υλικα και μεθοδοι για την παγιδευση παθογονων και την απομακρυνση του χρυσινοτρικαρβοξυλικου οξεος απο ενα δειγμα |
CA2630823C (en) | 2005-12-13 | 2015-02-10 | Exthera Ab | Method for extracorporeal removal of a pathogenic microbe, an inflammatory cell or an inflammatory protein from blood |
CA2576682A1 (en) | 2006-03-08 | 2007-09-08 | Martinrea International Inc. | Electrolyte delivery system |
WO2008118566A2 (en) * | 2007-02-28 | 2008-10-02 | Ge Healthcare Bio-Sciences Corp. | Ambient temperature stable chemical/biological reagents on membranes or filters |
US8758286B2 (en) | 2009-12-01 | 2014-06-24 | Exthera Medical Corporation | Method for removing cytokines from blood with surface immobilized polysaccharides |
EP2333105A1 (en) | 2009-12-08 | 2011-06-15 | Koninklijke Philips Electronics N.V. | Selective lysis of cells |
US20110225809A1 (en) * | 2010-03-17 | 2011-09-22 | Alan Francis Daher | Apparatus for removably attaching an item to a surface |
EP3067431B1 (en) * | 2010-09-15 | 2019-07-24 | Debiopharm International S.A. | Device including blood components for separating target molecules or particles from samples |
WO2012112724A1 (en) | 2011-02-15 | 2012-08-23 | Exthera Medical, Llc | Device and method for removal of blood-borne pathogens, toxins and inflammatory cytokines |
JP2013055888A (ja) * | 2011-09-07 | 2013-03-28 | Toyobo Co Ltd | 血液培養サンプルからの迅速かつ簡便な細菌検出 |
DK2861273T3 (da) | 2012-06-13 | 2017-11-27 | Exthera Medical Corp | Anvendelse af heparin og kulhydrater til behandling af cancer. |
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