JPH07500906A - 標識試薬を使用した結合検定法 - Google Patents
標識試薬を使用した結合検定法Info
- Publication number
- JPH07500906A JPH07500906A JP5507535A JP50753593A JPH07500906A JP H07500906 A JPH07500906 A JP H07500906A JP 5507535 A JP5507535 A JP 5507535A JP 50753593 A JP50753593 A JP 50753593A JP H07500906 A JPH07500906 A JP H07500906A
- Authority
- JP
- Japan
- Prior art keywords
- binding
- capture
- microspheres
- analyte
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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Abstract
Description
Claims (23)
- 1.液体サンプル中の分析物の濃度を、標準サンプルから計算された投与量−反 応曲線との比較により測定する結合検定法であって、分析物に特異的な結合部位 をもつ捕獲結合剤及び結合された分析物と又はその結合された分析物により占有 された捕獲結合剤上の結合部位と又はその捕獲結合剤上の占有されていない残り の結合部位と結合することができる顕色結合材料を使用し、この捕獲結合剤を、 そのサンプル中の分析物の有意でないフラクションのみがその捕獲結合剤に結合 されるようになるような量で使用し、そして、 標識をその顕色結合材料に関連した検定中で使用し、これによりその標識と関連 したシグナル強度がその分析物による捕獲結合剤上の結合部位のフラクション占 有率を表し、方法中、5μm未満のサイズをもち、そしてマーカーを担持する微 小球を、その標識として使用する、 ような検定法。
- 2.微小球が、0.01〜0.5μmの均一サイズをもつ、請求項1に記載の方 法。
- 3.微小球がポリマー・ラテックスから作られ、そしてそれらの表面上に負電荷 基又は正電荷基を提供されている、請求項1〜3のいずれか1項に記載の方法。
- 4.マーカーが、微小球内に含まれた蛍光標識である、請求項1〜3のいずれか 1項に記載の方法。
- 5.微小球が、標準フィルター装置に匹敵するカラー・レンジ内の蛍光を提供す る油−可溶性蛍光染料の分子を含む、請求項4に記載の方法。
- 6.微小球が、シグナル強度が時間−分解(time−resolved)蛍光 技術により測定されることができるような長い蛍光時間をもつ蛍光染料の分子を 含む、請求項4に記載の方法。
- 7.微小球が、それらに吸着されているか又は直接的に若しくは間接的に化学結 合されている顕色結合材料をもつ、請求項1〜6のいずれか1項に記載の方法。
- 8.微小球いくつかが、それらに吸着されているか又は直接的に若しくは間接的 に化学結合されている顕色結合材料をもち、そして他の微小球が、それらに吸着 されているか又は直接的に若しくは間接的に化学結合されている捕獲結合剤をも ち、その顕色結合材料がそれに吸着又は化学結合されるところの微小球内に含ま れる標識が、その捕獲結合剤がそれに吸着又は化学結合されるところの微小球内 の標識と異なっているような、請求項1〜6のいずれか1項に記載の方法。
- 9.顕色結合材料及び適当な場合には捕獲結合剤が吸着又は共有結合により微小 球に結合されてた後に、その微小球を、遮蔽(blocked)し、他の材料に 対するそれらの非特異的結合を避けるような、請求項7又は8に記載の方法。
- 10.微小球の遮蔽が、ウシ血清アルブミン又は他の非−妨害蛋白材料及び非イ オン洗剤により達成される、請求項9に記載の方法。
- 11.捕獲結合剤が、1,000〜100,000分子/μm2の範囲内の表面 密度において1mm2面積をもつ1以上のマイクロスポットの形態で固体支持体 上に固定化されており、そしてその液体サンプル・サイズが、1ml以下である 、請求項1〜10のいずれか1項に記載の方法。
- 12.1又は複数のマイクロスポットが、0.01〜1mmの直径をもち、そし て10,000〜50,000分子/μm2の表面密度における固定化捕獲結合 剤を含み、そのサンプル・サイズが、50μl〜1mlである、請求項11に記 載の方法。
- 13.異なる捕獲結合剤が、同一固体支持体上の異なるマイクロスポット上に固 定化され、そして同一液体サンプル中の異なる分析物の測定のためのそれぞれの 結合検定が、同一操作において行われる、請求項11又は12に記載の方法。
- 14.捕獲結合剤及び顕色結合材料の両方が、抗体である、請求項1〜13のい ずれか1項に記載の方法。
- 15.捕獲結合剤が、液体サンプル中の対応DNA配列を認識する一本鎖オリゴ ヌクレオチドDNAプローブであり、そして顕色結合材料が、双子ストランドD NA配列だけを認識する抗体であるか、あるいは液体サンプル中の対応DNA配 列の他の部分を認識するか又は捕獲結合剤を形成する残りの一本鎖オリゴヌクレ オチドDNAプローブを認識するかのいずれかであるオリゴヌクレオチドDNA 配列であるか、のいずれかであり、その顕色結合材料が、微小球により標識され ているような、DNA検定における使用のための、請求項1〜13のいずれか1 項に記載の方法。
- 16.結合検定が、非競合的結合検定である、請求項1〜15のいずれか1項に 記載の方法。
- 17.液体サンプル中の一本鎖DNA配列を含んで成る分析物の検出のための結 合検定法であって、 非競合的又は競合的手順において、そのサンプルを、その液体サンプル中の分析 物をミ認識し且つそれと結合することができる一本鎖オリゴヌクレオチドDNA プローブである固定化捕獲結合剤と、そして、 標識顕色結合材料であって、そのプローブ及び分析物から形成された双子ストラ ンドDNA配列だけを認識しそしてそれと結合することができる抗体であるか、 又はその分析物の他の部分若しくはその残りのプローブのいずれかを認識し且つ これと結合することができるオリゴヌクレオチドDNA配列であるかのいずれか であるものと、接触させ、 その顕色結合材料を、5μm未満のサイズをもちそしてマーカーを担持している 微小球により標識し、そして、非付着の顕色結合材料を除去した後、固定化され た捕獲結合剤に直接的に又は間接的に結合されるようになった顕色結合材料に付 着したマーカーからのシグナルの存在又は強度により、その分析物の存在を検出 すること、を含んで成る方法。
- 18.マーカーが、0.01〜1μmのサイズをもつ微小球内に含まれた蛍光標 識である、請求項17に記載の方法。
- 19.顕色結合材料が、微小球に直接的に又は間接的に共有結合されている、請 求項17又は18に記載の方法。
- 20.結合検定法における使用のためのキットであって、液体サンプル中の分析 物の濃度を、その分析物に特異的な結合部位を持つ捕獲結合剤及び顕色結合材料 であって結合された分析物と又はその結合された分析物により占有された捕獲結 合剤上の結合部位と又はその捕獲結合剤上に未占有で残った結合部位と結合する ことができるものを使用して測定し、標識を、その顕色結合材料との関係におい て使用し、これにより、その標識と関係したシグナル強度がその分析物によるそ の捕獲結合剤上の結合部位のフラクション占有率を表し、(a)その上に固定化 された捕獲結合剤をもつ固体支持体、(b)マーカーを担持している微小球の表 面に、吸着されたか又は直接的に若しくは間接的に化学結合された顕色結合材料 を含んで成る顕色試薬、及び(c)測定されるべき分析物の既知の量又は濃度を もつ標準、を含んで成るようなキット。
- 21.試薬が、5μm未満のサイズをもち且つ蛍光染料の分子を含む微小球に吸 着されたか又は共有結合された顕色結合材料を含む、請求項20に記載のキット 。
- 22.固体支持体が、1mm2未満のサイズ及び少なくとも1000分子/μm 2の表面密度の1以上のマイクロスポットの形態でその上に固定化された捕獲結 合剤をもつ、請求項20又は21に記載のキット。
- 23.異なる捕獲結合剤を同一の固体支持体上の異なるマイクロスポット上に固 定化しており、そして異なる分析物のための複数の異なる顕色試薬及び異なる標 準を含んでいる、請求項22に記載のキット。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919121873A GB9121873D0 (en) | 1991-10-15 | 1991-10-15 | Improved non-competitive sandwich immunoassay system |
GB9121873.5 | 1991-10-15 | ||
GB9221094.7 | 1992-10-07 | ||
GB929221094A GB9221094D0 (en) | 1991-10-15 | 1992-10-07 | Binding assay employing labelled reagent |
PCT/GB1992/001892 WO1993008472A1 (en) | 1991-10-15 | 1992-10-15 | Binding assay employing labelled reagent |
Publications (2)
Publication Number | Publication Date |
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JPH07500906A true JPH07500906A (ja) | 1995-01-26 |
JP3097866B2 JP3097866B2 (ja) | 2000-10-10 |
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JP05507535A Expired - Fee Related JP3097866B2 (ja) | 1991-10-15 | 1992-10-15 | 標識試薬を使用した結合検定法 |
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US (1) | US5516635A (ja) |
EP (1) | EP0608370B1 (ja) |
JP (1) | JP3097866B2 (ja) |
AT (1) | ATE161964T1 (ja) |
AU (1) | AU2872092A (ja) |
DE (1) | DE69223980T2 (ja) |
DK (1) | DK0608370T3 (ja) |
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WO (1) | WO1993008472A1 (ja) |
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DE69223980D1 (de) | 1998-02-12 |
AU2872092A (en) | 1993-05-21 |
EP0608370A1 (en) | 1994-08-03 |
ES2112916T3 (es) | 1998-04-16 |
DK0608370T3 (da) | 1998-09-07 |
DE69223980T2 (de) | 1998-05-28 |
JP3097866B2 (ja) | 2000-10-10 |
WO1993008472A1 (en) | 1993-04-29 |
EP0608370B1 (en) | 1998-01-07 |
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