JP2015512049A - 免疫抑制薬のためのサンドイッチアッセイ - Google Patents
免疫抑制薬のためのサンドイッチアッセイ Download PDFInfo
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- JP2015512049A JP2015512049A JP2014560916A JP2014560916A JP2015512049A JP 2015512049 A JP2015512049 A JP 2015512049A JP 2014560916 A JP2014560916 A JP 2014560916A JP 2014560916 A JP2014560916 A JP 2014560916A JP 2015512049 A JP2015512049 A JP 2015512049A
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- Prior art keywords
- tacrolimus
- monoclonal antibody
- primary
- immunosuppressive drug
- sample
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Abstract
Description
本明細書において記載された原理に従ったいくつかの実施例は、免疫抑制薬を含んでいる疑いのある試料において免疫抑制薬を測定するための方法に関する。該方法は、媒体中で試料、免疫抑制薬についての一次モノクローナル抗体、及び免疫抑制薬についての二次モノクローナル抗体の組合せを提供することを含む。二次モノクローナル抗体は、一次モノクローナル抗体が免疫抑制薬に結合する部分以外の、免疫抑制薬の部分に結合する。媒体を、一次モノクローナル抗体及び二次モノクローナル抗体の免疫抑制薬への結合のための条件下でインキュベートする。媒体を、免疫抑制薬、一次モノクローナル抗体及び二次モノクローナル抗体を含む免疫複合体の存在について試験する。免疫複合体の存在及び/又は量は、試料中の免疫抑制薬の存在及び/又は量を示す。
一般議論
本発明は、免疫抑制薬分子の一部を分離するために特異的に結合するモノクローナル抗体を製造することができることを見出している。この発見は、免疫抑制薬が、比較的小分子(分子量約2500未満、又は約2000未満、又は約1500未満、又は約1000未満)であり、かつ抗体が結合できる1つ以上の部位を有することが考慮されないハプテンであるために、驚くべきことである。本明細書に記載の原理に従って、同時に免疫抑制薬分子の別の部分に結合する少なくとも2つの異なる抗体を製造することができる。“免疫抑制薬のための抗体”の語句は、免疫抑制薬に特異的に結合し、かつ任意の著しい程度まで免疫抑制薬のための抗体を変形する他の物質に結合しない抗体を意味する。特異的結合は、他の分子の実質的に少ない識別と比較して他のための2つの異なる分子の1つの特異的な認識を含む。一方で、非特異的結合は、比較的特定の表面構造と無関係である分子間の非共有結合を含む。非特異的結合は、分子間の疎水性相互作用を含むいくつかの因子によりもたらされてよい。
次の特定の記載は、本発明の範囲の説明を目的とし、本発明の範囲を制限しない。免疫抑制薬、及び特にタクロリムスの選択は、本発明が、抗体を生じることができ、かつかかる生じた抗体が化合物のためのアッセイ中に特異的に結合する空間的に分けられた領域を有するあらゆるハプテンの検出への一般の適用を有するための説明のためであり、制限するものではない。
前記のように、本明細書において記載された原理に従った例は、免疫抑薬を含んでいる疑いのある試料における免疫抑制薬の測定のためのサンドイッチアッセイを可能にする。サンドイッチアッセイにおいて、2つのモノクローナル抗体を使用し、それぞれ、同時に免疫抑制薬分子の別々の領域に結合して、免疫複合体を形成する。免疫複合体の検出は、試料中の免疫抑制薬の測定を可能にする。
特定のアッセイを導入するための試薬が、免疫抑制薬分析物の測定のためのアッセイを簡便に実施するために有用なキットにおいて存在してよい。一例において、キットは、分析物、特定のアッセイ形式に依存する性質について分析するためのパッケージ化された組合せ試薬を含む。試薬は、例えば、ラベル又は支持体に接合してよい、本明細書において記載された原理に従った2つ以上のモノクローナル抗体を含んでよい。試薬はそれぞれ別々の容器にあってよく、又は種々の試薬を、交差反応及び試薬の安定性に依存して2つ以上の容器中で合してよい。さらに、キットは、アッセイを導入するための他の別々パッケージ化した試薬、例えば追加の結合膜及び補助試薬を含んでよい。
全ての化学物質を、特に記載されていない限りSigma− Aldrich Company(St. Louis MO)から得た。タクロリムスを、Astellas Pharma US, Inc.,(Deerfield、IL)から得た。
自動化ACMIAサンドイッチアッセイを使用したタクロリムスの測定
タクロリムス−キーホールリンペットヘモシアニン接合体の製造。無水ジメチルホルムアミド1.05mL中でタクロリムスモノオキシム(32.3mg、36.8μmol)に、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミドヒドロクロリド(EDAC)(11mg、57.4μM、1.5当量)及びN−ヒドロキシスクシニミド(7.3mg、63.4μM、1.7当量)を添加した。連結をタクロリムス分子のC22位で実施した。反応物を、アルゴン下で1時間室温で撹拌した。そして、その混合物を、シリンジを介して、キーホールリンペットヘモシアニン(74mg、54%純度)のリン酸緩衝食塩水(0.1M、pH8.0)及びジメチルホルムアミド0.25mLの溶液に滴下した。室温で2時間の撹拌後に、得られた懸濁液をPBS(リン酸緩衝食塩水)(10mM、pH7.0)に対して透析した(1×4L、4℃、2時間)。
自動化ELISAサンドイッチアッセイを使用したタクロリムスの測定
1E2クローンを使用する抗タクロリムス抗体−β−ガラクトシダーゼ接合体の製造。マウスモノクローナル抗タクロリムス抗体、クローン1E2(前記のように製造した)を、300mMの塩化ナトリウムを添加した10mMのリン酸ナトリウム、pH6.7から構成される媒体中で、ヘテロ二官能価リンカーSMCC(スクシンイミジル4−(N−マレイミドメチル)シクロヘキサン−1−カルボキシレート(EMD Biosciences, Inc.、La Jolla CA)で誘導した。誘導反応を60分間25℃で進行させた後に、得られたマレイミド−活性化抗体を、前記媒体中に緩衝変化によって再精製して、未反応のリンカー及び遊離N−ヒドロキシスクシンイミドを取り出し、続いて濃度を1.0mg/mLに調整した。
Claims (20)
- 免疫抑制薬を含有する疑いのある試料において免疫抑制薬を測定するための方法であって、以下、
(a)媒体中で、
(i)試料と
(ii)免疫抑制薬のための一次モノクローナル抗体と
(iii)免疫抑制薬のための二次モノクローナル抗体と
を組み合わせて提供すること、ここで、二次モノクローナル抗体は、一次モノクローナル抗体が免疫抑制薬に結合する部分以外の免疫抑制薬の一部に結合し、
(b)前記媒体を、免疫抑制薬への一次モノクローナル抗体及び二次モノクローナル抗体の結合のための条件下でインキュベートすること、並びに
(c)免疫抑制薬、一次モノクローナル抗体及び二次モノクローナル抗体を含む免疫複合体の存在について前記媒体を試験すること、ここで、免疫複合体の存在及び/又は量は、試料中の免疫抑制薬の存在及び/又は量を示す、
を含む、前記方法。 - 前記免疫抑制薬が、タクロリムス、シクロスポリン、ラパマイシン及びエベロリムスからなる群から選択される、請求項1に記載の方法。
- 前記一次モノクローナル抗体及び二次モノクローナル抗体の1つが、シグナル発生システムの一端をなす、請求項1に記載の方法。
- 前記一次モノクローナル抗体及び二次モノクローナル抗体の1つが、支持体に結合される、請求項1に記載の方法。
- 前記免疫抑制薬がタクロリムスであり、かつ前記一次モノクローナル抗体が、実質的にメトキシ官能基及びヒドロキシ官能基を含むC29〜C34環及びメトキシ官能基を含むC15からなるタクロリムスの一部に結合する、請求項1に記載の方法。
- 前記免疫抑制薬がタクロリムスであり、かつ前記二次モノクローナル抗体が、実質的にC10〜C14環のメトキシ、及びC22ケト酸素を含むC1〜C26環のC19〜C27からなるタクロリムスの一部に結合する、請求項1に記載の方法。
- 前記免疫抑制薬がタクロリムスであり、かつ前記一次モノクローナル抗体は、C22でタクロリムスに連結した免疫原キャリヤーを含む免疫原に対して生じたものである、請求項1に記載の方法。
- 前記免疫抑制薬がタクロリムスであり、かつ前記二次モノクローナル抗体は、C32でタクロリムスに連結した免疫原キャリヤーを含む免疫原に対して生じたものである、請求項1に記載の方法。
- 前記免疫抑制薬がタクロリムスであり、前記一次モノクローナル抗体が14H04であり、かつ前記二次モノクローナル抗体が1E2である、請求項1に記載の方法。
- タクロリムスを含有する疑いのある試料においてタクロリムスを測定するための方法であって、以下、
(a)媒体中で、
(i)試料と
(ii)タクロリムスのための一次モノクローナル抗体と
(iii)タクロリムスのための二次モノクローナル抗体と
を組み合わせて提供すること、ここで、二次モノクローナル抗体は、一次モノクローナル抗体がタクロリムスに結合する部分以外のタクロリムスの一部に結合し、
(b)前記媒体を、試料中でのタクロリムスへの一次抗体及び二次抗体の結合のための条件下でインキュベートすること、並びに
(c)タクロリムス、一次モノクローナル抗体及び二次モノクローナル抗体を含む免疫複合体の存在について前記媒体を試験すること、ここで、免疫複合体の存在及び/又は量は、試料中のタクロリムスの存在及び/又は量を示す、
を含む、前記方法。 - 前記一次モノクローナル抗体及び二次モノクローナル抗体の1つが、シグナル発生システムの一端をなす、請求項10に記載の方法。
- 前記一次モノクローナル抗体及び二次モノクローナル抗体の1つが、支持体に結合される、請求項10に記載の方法。
- 前記一次モノクローナル抗体が、実質的にメトキシ官能基及びヒドロキシ官能基を含むC29〜C34環及びメトキシ官能基を含むC15からなるタクロリムスの一部に結合する、請求項10に記載の方法。
- 前記二次モノクローナル抗体が、実質的にC10〜C14環のメトキシ、及びC22ケト酸素を含むC1〜C26環のC19〜C27からなるタクロリムスの一部に結合する、請求項10に記載の方法。
- 前記一次モノクローナル抗体は、C22でタクロリムスに連結した免疫原キャリヤーを含む免疫原に対して生じたものである、請求項10に記載の方法。
- 前記二次モノクローナル抗体は、C32でタクロリムスに連結した免疫原キャリヤーを含む免疫原に対して生じたものである、請求項10に記載の方法。
- 前記一次モノクローナル抗体が14H04であり、かつ前記二次モノクローナル抗体が1E2である、請求項10に記載の方法。
- タクロリムスを含有する疑いのある試料においてタクロリムスを測定するための方法であって、以下、
(a)媒体中で、
(i)試料と
(ii)磁性粒子を伴うクロリムスのための一次モノクローナル抗体と
(iii)タクロリムスのための二次モノクローナル抗体と
を組み合わせて提供すること、ここで、二次モノクローナル抗体は、一次モノクローナル抗体がタクロリムスに結合する部分以外の他のタクロリムスの一部に結合し、かつ二次モノクローナル抗体は酵素を伴い、
(b)前記媒体を、タクロリムスへの一次モノクローナル抗体及び二次モノクローナル抗体の結合のための条件下でインキュベートすること、並びに
(d)タクロリムス及び一次モノクローナル抗体及び二次モノクローナル抗体を含む免疫複合体の存在について前記媒体を試験すること、ここで、免疫複合体の存在及び/又は量は、試料中のタクロリムスの存在及び/又は量を示す、
を含む、前記方法。 - 前記一次モノクローナル抗体が、実質的にメトキシ官能基及びヒドロキシ官能基を含むC29〜C34環及びメトキシ官能基を含むC15からなるタクロリムスの一部に結合し、かつ前記二次モノクローナル抗体が、実質的にC10〜C14環のメトキシ、並びにC25ヒドロキシ及びC22ケト酸素を含むC1〜C26環のC19〜C27からなるタクロリムスの一部に結合する、請求項18に記載の方法。
- 前記一次モノクローナル抗体が14H04であり、かつ前記二次モノクローナル抗体が1E2である、請求項18に記載の方法。
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JP2022540030A (ja) * | 2019-06-28 | 2022-09-14 | シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレイテッド | 粒子増強凝集検出を使用するサンドイッチイムノアッセイのための試薬ならびにそれらの作製および使用の方法 |
JP7465900B2 (ja) | 2019-06-28 | 2024-04-11 | シーメンス・ヘルスケア・ダイアグノスティックス・インコーポレイテッド | 粒子増強凝集検出を使用するサンドイッチイムノアッセイのための試薬ならびにそれらの作製および使用の方法 |
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EP2823304A4 (en) | 2015-12-16 |
KR20140137423A (ko) | 2014-12-02 |
WO2013133917A1 (en) | 2013-09-12 |
US8586322B2 (en) | 2013-11-19 |
CN104160273B (zh) | 2016-11-16 |
ES2673557T3 (es) | 2018-06-22 |
EP2823304A1 (en) | 2015-01-14 |
EP2823304B1 (en) | 2018-03-14 |
CN104160273A (zh) | 2014-11-19 |
US20130236918A1 (en) | 2013-09-12 |
KR20200034825A (ko) | 2020-03-31 |
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