JP4486497B2 - 複合混合物中の個々の活性成分を同定する方法 - Google Patents
複合混合物中の個々の活性成分を同定する方法 Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
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Description
本願は、2002年7月11日出願の米国仮特許出願第60/395,038号の優先権を主張する。
本発明は、活性成分について混合物をスクリーニングする方法に関する。
従来のプロテオミクスは、生物の全体のプロテオームの包括的な同定プロフィールを作成し、この情報の解析によって診断及び治療用成分の候補を同定しようとするものである。現在、タンパク質混合物を解析するための主要な技術は、二次元ゲル電気泳動及び多次元液体クロマトグラフィーであり、これらは両者とも質量分析装置に接続されている。この手法の能力の例としては、酵母における1484種のタンパク質の解明と同定である(Washburn et al., Nat. Biotechnol. 19(3): 242-2471 (2001))。タンパク質の分離及び同定のための定量的な方法は、Aebersold及びその共同研究者により開発された放射性同位体を付加したアフィニティタグ(ICAT)である(Smolka et al., Anal. Biochem. 297(1): 25-312 (2001))。ICATは、タンパク質の発現レベルを定量するための同位体で標識した正常又は重試薬を用いたタンパク質の部位特異的な共有結合の標識を含む。タンパク質を分離し同定する方法の別の例は、Uetzら及びItoらにより開発された、サッカロミセス・セレビシエにおいて4000以上のタンパク質−タンパク質相互作用を同定した酵母ツーハイブリッドスクリーニングアッセイの大規模形式である(Uetz et al., Nature 403(6770): 623-627 (2000);Ito et al., Proc. Natl. Acad. Sci. USA 98(8): 4569-4574 (2001))。タンパク質を分離・同定するこれらの手法は強力であるが、これらは分画したタンパク質の細胞機能を同定するものではない。
本発明は、活性成分について混合物をスクリーニングする方法を提供する。第1の方法においては、本方法は、(i)複数のリガンドを用意し、それぞれのリガンドを支持体と結合して、複数のリガンド−支持体複合物を形成させるステップ、(ii)少なくとも1つの成分が少なくとも1つのリガンド−支持体複合物と結合しうる条件下でリガンド−支持体複合物と複数の成分を含む混合物とを接触させ、それにより少なくとも1つの成分−リガンド−支持体複合物を形成させるステップ、(iii)少なくとも1つの成分−リガンド−支持体複合物を未結合成分から分離するステップ、(iv)少なくとも1つの分離した成分−リガンド−支持体複合物の少なくとも1つの成分を活性についてアッセイするステップ、(v)上記活性を検出するステップ、並びに(vi)検出された活性を示す成分を有する少なくとも1つの成分−リガンド−支持体複合物を選択するステップ、を含む。
本発明は、活性成分について混合物をスクリーニングする方法を提供する。第1の方法において、本方法は、(i)複数のリガンドを用意し、それぞれのリガンドを支持体と結合して、複数のリガンド−支持体複合物を形成させるステップ、(ii)少なくとも1つの成分が少なくとも1つのリガンド−支持体複合物と結合しうる条件下でリガンド−支持体複合物と複数の成分を含む混合物とを接触させ、それにより少なくとも1つの成分−リガンド−支持体複合物を形成させるステップ、(iii)少なくとも1つの成分−リガンド−支持体複合物を未結合成分から分離するステップ、(iv)少なくとも1つの分離した成分−リガンド−支持体複合物の少なくとも1つの成分を活性についてアッセイするステップ、(v)上記活性を検出するステップ、並びに(vi)検出された活性を示す成分を有する少なくとも1つの成分−リガンド−支持体複合物を選択するステップ、を含む。
実施例
DEPFMU、6,8−ジフルオロ−4−メチルウンベリフェリル;ICAT、放射性同位体を使用したアフィニティタグ;UV−VIS、紫外線可視光;SAP、ストレプトアビジン−アルカリホスファターゼ;FITC、フルオレセインイソチオシアネート;ATCC、アメリカン・タイプ・カルチャー・コレクション;IL−2、インターロイキン−2;PNPP、p−ニトロフェニルホスフェート;PPV、ブタパルボウイルス;PVDF、フッ化ポリビニリデン;AP、アルカリホスファターゼ;及びPI、ヨウ化プロピジウム。
Claims (11)
- 複数の成分を含む混合物をスクリーニングし、生物学的及び/又は生化学的活性を示す成分を選択する方法であって、
(i)複数のリガンド−支持体複合物と複数の成分を含む混合物とを接触させ、少なくとも1つの成分−リガンド−支持体複合物を形成させるステップであって、該複数のリガンド−支持体複合物のそれぞれのリガンドは本質的に2〜10アミノ酸からなるペプチドであり、該複数のリガンド−支持体複合物のそれぞれの支持体は単一のリガンドの複数のコピーを有する粒子であり、該リガンドはほかのすべての前記複数のリガンド−支持体複合物のリガンドと異なるペプチド配列を有する、ステップ、
(ii)少なくとも1つの成分−リガンド−支持体複合物を未結合成分から分離するステップ、
(iii)前記成分の生物学的及び/又は生化学的活性を検出し、ここでアッセイした活性は成分のリガンド−支持体複合物への単なる結合ではないステップ。
(iv)ステップ(iii)で検出された活性成分を含む成分−リガンド−支持体複合物を選択するステップ、並びに
(v)前記活性成分が結合した少なくとも1つのリガンドを特定するステップ
を含み、それにより混合物をスクリーニングするものである、上記方法。 - リガンドが開裂、カップリング、組換え法により作製される、請求項1記載の方法。
- 粒子がビーズである、請求項1記載の方法。
- 混合物が生物学的液体、環境抽出物、又は化学化合物を含む組成物である、請求項1記載の方法。
- 生物学的液体が疾患に罹患した宿主から得られたものである、請求項4記載の方法。
- (vi)ステップ(v)で特定された少なくとも1つのリガンドを含むリガンド−支持体複合物と活性成分の複数のコピーを含む組成物とを接触させ、活性成分−リガンド−支持体複合物を形成させるステップ、および
(vii)活性成分−リガンド−支持体複合物から活性成分を解離させ、それにより組成物から活性成分を回収するステップ、
をさらに含む、請求項1記載の方法。 - (viii)活性成分を特定するステップ、
をさらに含む、請求項6記載の方法。 - ステップ(iii)が細胞に基づくアッセイを用いて成分の活性を検出することを含む、請求項1記載の方法。
- 複数の細胞が細胞集団、組織、細菌、原生動物、寄生虫又は生物個体である、請求項8記載の方法。
- ステップ(ii)の後でステップ(iii)の前に、少なくとも1つの分離された成分−リガンド−支持体複合物及びリガンド−支持体複合物を複数のプールに分離するサブプールステップをさらに含むものである、請求項1記載の方法。
- サブプールステップの後でステップ(iii)の前に、複数の成分−リガンド−支持体複合物の成分を該複合物から解離し、続いてリガンド−支持体複合物をプールから取り出す溶出ステップをさらに含む、請求項10記載の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39503802P | 2002-07-11 | 2002-07-11 | |
| PCT/US2003/019584 WO2004007757A1 (en) | 2002-07-11 | 2003-06-20 | Method for identifying individual active entities from complex mixtures |
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| Publication Number | Publication Date |
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| JP2005532569A JP2005532569A (ja) | 2005-10-27 |
| JP4486497B2 true JP4486497B2 (ja) | 2010-06-23 |
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| CA (1) | CA2491969A1 (ja) |
| DE (1) | DE60332115D1 (ja) |
| WO (1) | WO2004007757A1 (ja) |
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| US20060275753A1 (en) * | 2002-04-15 | 2006-12-07 | Hammond David J | Recovery of analytes using combinatorial libraries |
| EP1580559B1 (en) * | 2004-03-23 | 2013-12-25 | Bio-Rad Laboratories, Inc. | Methods for reducing the variance between analyte concentrations taken from complex sample mixtures |
| EP1871726A2 (en) * | 2005-03-23 | 2008-01-02 | Bio-Rad Laboratories, Inc. | Diverse chemical libraries bound to small particles with paramagnetic properties |
| US20090247421A1 (en) * | 2005-03-23 | 2009-10-01 | Egisto Boschetti | Diverse chemical libraries bound to small particles with paramagnetic properties |
| EP1734367A1 (en) * | 2005-06-14 | 2006-12-20 | Cellzome Ag | Process for the identification of novel enzyme interacting compounds |
| DE102005047301B4 (de) * | 2005-09-30 | 2009-04-16 | Sartorius Stedim Biotech Gmbh | Verfahren zum Nachweis der Virenabreicherung für die Validierung von Filtern und Filtrationsprozessen |
| KR20140027174A (ko) | 2011-03-24 | 2014-03-06 | 옵코 파마슈티칼스, 엘엘씨 | 비드 또는 입자 기초 라이브러리들, 진단적 키트들을 및 치료제들을 사용한 복합 생물학적 유체에서 바이오마커 발견 |
| JP5648613B2 (ja) * | 2011-09-12 | 2015-01-07 | コニカミノルタ株式会社 | 表面プラズモン励起増強蛍光分光法用センサチップおよびそれを用いた測定方法 |
| US9220733B2 (en) | 2012-03-19 | 2015-12-29 | The Regents Of The University Of California | Solubilization of antigen components for removal from tissues |
| US11899020B2 (en) | 2017-03-31 | 2024-02-13 | The Regents Of The University Of California | Shotgun proteomic antigen identification |
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| US5133866A (en) * | 1988-03-24 | 1992-07-28 | Terrapin Technologies, Inc. | Method to identify analyte-bending ligands |
| US5010175A (en) * | 1988-05-02 | 1991-04-23 | The Regents Of The University Of California | General method for producing and selecting peptides with specific properties |
| US5252743A (en) * | 1989-11-13 | 1993-10-12 | Affymax Technologies N.V. | Spatially-addressable immobilization of anti-ligands on surfaces |
| US5498538A (en) * | 1990-02-15 | 1996-03-12 | The University Of North Carolina At Chapel Hill | Totally synthetic affinity reagents |
| US5650489A (en) * | 1990-07-02 | 1997-07-22 | The Arizona Board Of Regents | Random bio-oligomer library, a method of synthesis thereof, and a method of use thereof |
| IL106106A0 (en) * | 1993-06-22 | 1993-10-20 | Interpharm Lab Ltd | Library of polymeric molecules and its preparation |
| US5723579A (en) * | 1996-02-02 | 1998-03-03 | Bayer Corporation | Fibrinogen binding peptides |
| US5786458A (en) * | 1996-06-28 | 1998-07-28 | Bayer Corporation | Selective stabilization of protein during viral inactivation |
| EP1237908A2 (en) * | 1999-12-02 | 2002-09-11 | V.I. Technologies, Inc. | Ligands for a target molecule and method for identifying them |
| JP2003536073A (ja) * | 2000-06-05 | 2003-12-02 | カイロン コーポレイション | プロテオミクス分析を実施するためのマイクロアレイ |
| CA2482856A1 (en) * | 2002-04-15 | 2003-10-30 | American National Red Cross | Plasma protein-binding ligands |
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- 2003-06-20 EP EP03739241A patent/EP1521841B1/en not_active Expired - Lifetime
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| WO2004007757A1 (en) | 2004-01-22 |
| CA2491969A1 (en) | 2004-01-22 |
| EP1521841B1 (en) | 2010-04-14 |
| ATE464392T1 (de) | 2010-04-15 |
| US20040101830A1 (en) | 2004-05-27 |
| JP2005532569A (ja) | 2005-10-27 |
| AU2003245612A1 (en) | 2004-02-02 |
| DE60332115D1 (de) | 2010-05-27 |
| CN1671859A (zh) | 2005-09-21 |
| EP1521841A4 (en) | 2006-09-20 |
| EP1521841A1 (en) | 2005-04-13 |
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