JP2019528052A - 高度に多重化された蛍光イメージング - Google Patents
高度に多重化された蛍光イメージング Download PDFInfo
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Classifications
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- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
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- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
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- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
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- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
本発明は、米国食品医薬品局(FDA)により授与された契約HHSF223201210194Cに基づく政府支援によってなされた。政府は本発明に一定の権利を有する。
本出願は、参照により本明細書に組み込まれる、2016年7月27日に出願された米国仮特許出願第62/367,530号の利益を主張する。
本明細書で別途定義されない限り、本明細書で使用されている専門用語および科学用語はすべて、本発明が属する当該技術の当業者によって一般的に理解されるものと同じ意味を有する。本明細書に記載されているものに類似するまたはそれらと同等である任意の方法および材料を本発明の実践および試験で使用することができるが、好ましい方法および材料が記載される。
本開示により、上記のように本方法を実施するための試薬を含むキットも提供される。いくつかの実施形態では、キットは、少なくとも10個のオリゴヌクレオチド(例えば、少なくとも15個、少なくとも20個、少なくとも30個、少なくとも40個、または全部で47個)の第1の集団を含んでもよく、ここで、この少なくとも10個のヌクレオチドの配列は、配列番号1〜47から選択される配列、またはそれらの相補配列からなる。多くの実施形態では、これらのオリゴヌクレオチドは水溶液中にあり、固体支持体につながれていない。いくつかの実施形態では、オリゴヌクレオチドは標識されている(例えば、蛍光体に連結されている)が、他の実施形態では、それらは標識されていない。これらのオリゴヌクレオチドは、別々の容器内にあっても、同じ容器内で混合されてもよい。いくつかの実施形態では、オリゴヌクレオチドは、最大3個の上記のオリゴヌクレオチドを含む混合物中にあり、これらのオリゴヌクレオチドは、識別可能に標識されている。いくつかの実施形態では、キットは、オリゴヌクレオチドの第2の集団を含んでもよく、ここで、この第2の集団中のオリゴヌクレオチドはそれぞれ、第1の集団中のオリゴヌクレオチドの全長と相補的な配列を含む。これらの実施形態では、第2の集団中のオリゴヌクレオチドはそれぞれ捕捉剤に連結されていてもよい。いくつかの実施形態では、第2の集団中のオリゴヌクレオチドは、第1の集団中のオリゴヌクレオチドより長くてもよい。キットの様々な構成要素は別々の容器中に存在してもよく、または必要に応じて特定の適合性のある構成要素を単一の容器中で事前に組み合わせてもよい。いくつかの実施形態では、使用されるプローブは、切断可能な結合(例えば、化学的にまたは光切断可能な結合)を含み得る。
本発明の態様は、試料を分析するために構成されたシステムおよびその装置を含む。いくつかの実施形態では、本システムは、試料ウェル、オートサンプラー、コントローラ、プロセッサ、およびプロセッサによって実行された場合にコントローラに試料を分析させる指示を含むコンピュータ可読媒体を含む。ここで、これらの構成要素のそれぞれについて、さらに詳細に説明する。
本明細書に記載の方法および組成物は、任意の試料の分析のための多種多様な応用において一般的な用途が見いだされる(例えば、組織切片、細胞のシート、遠心した細胞、電気泳動ゲルのブロット、ウエスタンブロット、ドットブロット、ELISA、抗体マイクロアレイ、核酸マイクロアレイ等の分析にて)。この方法は、例えば、脂質除去などによって透明化された組織を含む任意の組織を分析するために使用されてもよい。試料は、拡大顕微鏡法を用いて調製することができ(例えば、Chozinskiら、Nature Methods2016 13:485−488を参照されたい)、これは、有機ポリマーと細胞成分との選択的共重合によって作製された生物系のポリマー複製物を作製することを含む。この方法は、例えば、細胞のスプレッド(spreads of cells)、エキソソーム、細胞外構造、固体支持体上またはゲル中(Elisa、ウエスタンブロット、ドットブロット)に堆積した生体分子、生物全体、個々の器官、組織、細胞、細胞外成分、細胞小器官、細胞成分、クロマチンおよびエピジェネティックマーカー、生体分子および生体分子複合体を分析するために使用されることが使用されることができる。捕捉剤は、タンパク質、脂質、多糖類、プロテオグリカン、代謝産物、または人工小分子などを含む任意の種類の分子に結合することができる。この方法は、ハイスループットスクリーニングおよび創薬などにおいて多くの生物医学的用途を有し得る。さらに、この方法は、診断、予後診断、疾患の階層化、個別化医療、臨床試験、および薬物付随試験を含むがこれらに限定されない、様々な臨床適用を有する。
実施形態1順次行われる以下の工程を含む試料を分析するための方法であって、
(a)
i.それぞれ異なるオリゴヌクレオチドに連結された複数の捕捉剤と、
ii.対応する複数の標識された核酸プローブと、を得る工程であって、標識された核酸プローブの各々は、(a)(i)のオリゴヌクレオチドのただ1つのみと特異的にハイブリダイズする、得る工程;
(b)(a)(i)の複数の捕捉剤で試料を標識する工程;
(c)(a)(ii)の標識された核酸プローブの第1のサブセットを試料と特異的にハイブリダイズさせる工程、ここで、第1のサブセット中のプローブは、識別可能に標識され、標識されたプローブ/オリゴヌクレオチド二本鎖を生成する、ハイブリダイズさせる工程;
(d)工程(c)でハイブリダイズしたプローブの各々についての結合パターンを示す画像を得るために、試料を読み取る工程;
(e)工程(c)において試料と関連付けられた標識を不活化または除去し、一方で、(b)の複数の捕捉剤およびそれらに関連付けられたオリゴヌクレオチドは依然として試料に結合させておく工程;ならびに
(f)(a)(ii)の標識された核酸プローブの異なるサブセットを用いて工程(c)および(d)を複数回繰り返し、各繰り返しの後には、最後の繰り返しを除いて工程(e)が続き、試料の複数の画像を生成する工程であって、各画像は、(c)で使用された標識された核酸プローブのサブセットに対応する、繰り返す工程;を含む、試料を分析するための方法。
少なくとも10個のオリゴヌクレオチドの配列が、配列番号48〜94から選択される配列、またはそれらの相補配列からなる、キット。
第2の集団中のオリゴヌクレオチドがそれぞれ、第1の集団中のオリゴヌクレオチドの全長に相補的な配列を含む、実施形態27〜30のいずれかに記載のキット。
(a)試料を複数の捕捉剤で標識すること;
(b)複数の標識された核酸プローブの第1のサブセットを試料に特異的にハイブリダイズさせること;
(c)工程(b)でハイブリダイズしたプローブの各々についての結合パターンを示す画像を得るために、試料を読み取ること;
(d)工程(b)でハイブリダイズした標識および/またはプローブを試料から除去すること;ならびに
(e)複数の標識された核酸プローブの異なるサブセットを用いて、工程(b)および(c)を複数回繰り返し、最後の繰り返しを除いて、各繰り返しの後に工程(d)を続けること;を含む、システム。
各抗体は、色素分子にコンジュゲートしたより短い相補的なオリゴヌクレオチドにハイブリダイズする独特のオリゴヌクレオチドにコンジュゲートされる。全ての抗体が合わされ、このカクテルを用いて標的組織(または細胞スプレッド)を染色する。組織をフローセルに取り付け、標準的な4色顕微鏡用に3セットの色素−オリゴヌクレオチドのライブラリーを送達するためにオートサンプラーを使用して、オリゴヌクレオチドのアニーリングおよび除去の反復サイクルを行う。各ハイブリダイゼーション工程の後、組織または細胞スプレッドを蛍光顕微鏡で画像化する。色素−オリゴヌクレオチドは、各サイクルの間にホルムアミド溶液を用いて除去される。各サイクルからの蛍光画像を重ね合わせて、全てのサイクルおよび蛍光チャネルにわたる単一細胞の解像度情報を抽出する。
オリゴヌクレオチドライブラリー
配列直交型(sequence orthogonal)オリゴヌクレオチドプローブセットのライブラリーを、以下の基準に従って設計した:1)各プローブセットは、抗体にコンジュゲートした30〜40ntのオリゴヌクレオチド配列(オリゴa)と、蛍光色素にコンジュゲートしたより短い長さ(10〜20nt)の相補的オリゴヌクレオチド(オリゴb)とを含む。2)各オリゴbは、35℃〜50℃の融解温度(Tm)を有する。Tmが35℃未満である場合、イメージングの間、オリゴbはオリゴaにハイブリダイズしない。Tmが75℃を超える場合、色素−オリゴヌクレオチド(b)は、ホルムアミドインキュベーション工程中に除去されることができない。
ハイブリダイズした色素標識されたオリゴヌクレオチドは、2mMのトリスpH=7.5、2mMのMgCl2、25mMのNaCl、および0.02%(v/v)のTritonXを伴う80%のホルムアミド溶液を用いて、除去される。各サイクルの間に色素標識されたオリゴヌクレオチドを完全に除去するために、試料の表面にてホルムアミド溶液での120秒のインキュベーションを3回行い、次いで、10mMのトリスpH=7.5、10mMのMgCl2、150mMのNaCl、および0.1%(v/v)のTritonXを用いる4回の洗浄工程が行われる。
各サイクルは、以下の工程を含む。
1.ウェル内の溶液の除去および色素−オリゴヌクレオチドセットの送達
2.ハイブリダイゼーションインキュベーション
3.色素−オリゴヌクレオチドセット溶液の除去および試料の洗浄(4×)
4.試料イメージング
5.ウェル内の溶液の除去およびホルムアミド溶液の送達
6.ホルムアミド溶液インキュベーション
7.ウェル内の溶液の除去および試料の洗浄(4×)
8.ウェル内の溶液の除去およびホルムアミド溶液の送達
9.ホルムアミド溶液インキュベーション
10.ウェル内の溶液の除去および試料の洗浄(4×)
11.ウェル内の溶液の除去およびホルムアミド溶液の送達
12.ホルムアミド溶液インキュベーション
13.ウェル内の溶液の除去および試料の洗浄(4×)
色素−オリゴヌクレオチドは、抗体−DNAコンジュゲートにハイブリダイズされ、繰り返しサイクルにわたって除去することができる。
この技術の基盤は、DNAにコンジュゲートした抗体に色素標識したオリゴヌクレオチドをアニールする能力/DNAにコンジュゲートした抗体から色素標識したオリゴヌクレオチドを除去する能力である。これの実行可能性を証明するために、ヒト新鮮凍結リンパ節組織を、DNAにコンジュゲートしたCD3抗体(クローンUCHT1)で染色した。対比染色として、CD19に対して直接的に色素(Alexa647)標識した抗体を使用した。アニーリング/脱ハイブリダイゼーションの反復サイクルを実施した。ハイブリダイゼーション/ホルムアミド工程の両方の後に、同一組織領域をキーエンス顕微鏡で可視化した。各サイクルの間に、相補的なFAM標識されたオリゴヌクレオチドを、CD3コンジュゲート配列(14nt、Tm=42.4℃)に対して、室温(約23℃)で5分間ハイブリダイズさせた。ホルムアミド溶液(30%)を組織に添加し、5分間インキュベートして、色素標識されたオリゴヌクレオチドを除去した(図2および3)。
DNA−オリゴヌクレオチドハイブリダイゼーションの動力学
1サイクル当たりの時間が短縮されることにより、この技術における有用性が改善する。ハイブリダイゼーションの最短時間を決定するために、新鮮凍結ヒトリンパ節組織を、DNA−コンジュゲートCD3抗体およびAlexa647−コンジュゲートCD19抗体で染色した。相補的なFITC標識されたオリゴヌクレオチドを、異なるインキュベーション時間で組織(1μM)に添加し、細胞染色強度を測定した。各ハイブリダイゼーションインキュベーションの後に、ホルムアミドインキュベーション(30%)を続け、全てのハイブリダイズしたオリゴヌクレオチドを除去した。蛍光強度を直接比較するために、試験した全てのインキュベーション時間について、同一組織領域を画像化した。ハイブリダイゼーションの2分以内に、蛍光強度は最大化した(図4)。
ホルムアミド除去の動力学
各サイクルは、ハイブリダイゼーション工程およびホルムアミドを用いた除去工程の両方を含む。ハイブリダイズした全ての色素標識されたオリゴヌクレオチドを除去するための最短時間を測定した。ハイブリダイゼーション動力学を試験するために使用したのと同じ組織を、ホルムアミド除去動力学を試験するために使用した。相補的な色素標識されたオリゴヌクレオチド(1μM)を5分間ハイブリダイズさせた。ホルムアミド溶液(30%)を異なる時間でインキュベートした後、溶液を洗い流し、除去を停止した(図5)。試験した各時点の間に、追加の色素標識されたオリゴヌクレオチドを添加した。1分後、色素標識されたオリゴヌクレオチドを完全に除去した。
色素−オリゴヌクレオチドの特徴:長さ、Tm
ハイブリダイゼーション/除去の繰り返しサイクルの実現可能性を測定する予備研究は、Tm=42.4℃を伴う14ntの相補的な色素標識されたオリゴヌクレオチドを用いて実施した。イメージングの間(2時間まで)に十分な抗体染色を達成するための長さ/Tmの最小値と、ホルムアミド溶液で除去することができる長さの最大値とを決定するために、様々な長さの色素標識されたオリゴヌクレオチドを、ハイブリダイゼーション傾向/除去の両方について試験した(図5および6)。28℃未満のTmを伴う長さ10ntの色素標識されたオリゴヌクレオチドは、使用された条件下で、CD3DNAコンジュゲート抗体で染色された組織に効率的にハイブリダイズしないことが見出された(図6)。これに最も近い特徴を有する、長さ12ntおよびTm=34.4℃を有するオリゴヌクレオチドは、試験した他の全てのより長い色素標識されたオリゴヌクレオチドと同様に効率的にハイブリダイズした。ハイブリダイズした色素標識されたオリゴヌクレオチドの各々を、ホルムアミド溶液と共に2分間隔でインキュベートした(図7)。試験した最長の色素標識されたオリゴヌクレオチドは、30ntであり、Tm=65.9℃を有した。このプローブは80%のホルムアミド溶液中で効率的に除去された。これらの知見に基づいて、このアッセイに最適な色素標識されたオリゴヌクレオチドは、少なくとも35℃のTmを有するべきである。
抗体コンジュゲーションのための配列直交型オリゴヌクレオチド対のライブラリーの設計
各オリゴヌクレオチド対は、抗体にコンジュゲートしたオリゴヌクレオチドと、色素修飾を有する相補的配列とからなる。抗体に結合したオリゴヌクレオチドは、テザー(tether)配列を許容するために、色素標識されたオリゴヌクレオチドよりも長さが長いので、ハイブリダイゼーションは、抗体のすぐ隣で起こる必要はない。30個のオリゴヌクレオチド対のライブラリーを設計し、合成した。クロスハイブリダイゼーションについてスクリーニングするために、各マレイミドオリゴヌクレオチドを、マウスCD45抗体にコンジュゲートさせた。マウス脾臓細胞のアリコートを、単一のオリゴヌクレオチドで標識したCD45抗体で染色した。十分に洗浄した後、細胞を合わせて、カバーガラス上に置いた。3セットの色素標識されたオリゴヌクレオチドのハイブリダイゼーションの反復サイクルを実施した。色素標識されたオリゴヌクレオチドの除去は、ホルムアミドを用いて、各ハイブリダイゼーションの間に行った。色素標識されたオリゴヌクレオチドの各々に対応する細胞にわたる蛍光強度を測定し、他の全ての色素標識されたオリゴヌクレオチドに対応する蛍光強度と比較した。蛍光強度の値を図8にプロットする。各細胞集団についての蛍光強度プロファイルの代表的なトレースを図9に示す。オリゴヌクレオチド対のいくつかは、クロスハイブリダイゼーション活性を示す(例えば、T9およびT10)。図8に示した蛍光強度データに基づいて、オリゴヌクレオチド対の最小のセットを30のライブラリーから取り出し、配列直交型ライブラリーセットを作成した。得られた24個のオリゴヌクレオチド対のライブラリーを図10に示す。
自動化流体工学セットアップ
各サイクルは、3種類の溶液、1)オリゴヌクレオチド混合液、2)洗浄溶液、および3)ホルムアミド溶液、を試料ウェルに送達することを含む。使用の簡便性および再現性を目的として、流体工学は完全に自動化された。オートサンプラーは、各溶液を制御する一連のポンプに沿ってプログラムされた。各サイクルにおいて、3つのオリゴヌクレオチドの対応するセットが、96ウェルプレート内の指定されたウェルから取り出される。溶液を試料にポンプで送り込み、次いで、インキュベートする。単一のサイクルを完了するための一連のコマンド全体が完全に自動化され、pythonプログラムによって制御される。オートサンプラーの使用を実証するために、色素標識されたオリゴヌクレオチドの対を、96ウェルプレート内の最初の8つの位置に加えた。各奇数サイクルウェルは、色素−オリゴヌクレオチドT11−cy5およびT18−cy3を含み、各偶数サイクルは、T24−Cy5およびT26−Cy3を含む。このプラットフォームを用いて、異なるオリゴヌクレオチドにコンジュゲートしたCD45抗体で染色したマウス脾臓細胞の集団を画像化した。各サイクルからの染色された細胞の画像を、各集団からの5つの細胞にわたる代表的な細胞トレースと共に、図11に示す。示されるように、蛍光強度は全ての奇数および偶数サイクルにわたって同等であり、これは、オートサンプラーが色素標識されたオリゴヌクレオチド溶液をキャリーオーバーなしに試料に送達することを示している。
オリゴヌクレオチドライブラリーにコンジュゲートした抗体を用いたヒト組織の染色
ヒト組織を、マレイミドオリゴヌクレオチドの1つにコンジュゲートした抗体のカクテルで染色した。ハイブリダイゼーション/除去の反復サイクルは、各ハイブリダイゼーション工程後に行われるイメージングを伴って実施した。このプラットフォームを用いて、ヒト扁桃腺(図12)およびヒトリンパ節(図13)を画像化した。予想される染色はほぼすべてのサイクルで生じた。
Claims (42)
- 試料を分析するための方法であって、順次行われる以下のステップ:
(a)
i.それぞれ異なるオリゴヌクレオチドに連結された複数の捕捉剤と、
ii.対応する複数の標識された核酸プローブと、
を得るステップであって、前記標識された核酸プローブの各々は、前記(a)(i)のオリゴヌクレオチドのただ1つのみと特異的にハイブリダイズするものであるステップ;
(b)前記(a)(i)の複数の捕捉剤で試料を標識するステップ;
(c)(a)(ii)の標識された核酸プローブの第1のサブセットを試料と特異的にハイブリダイズさせるステップであって、第1のサブセット中のプローブが識別可能に標識されていて、標識されたプローブ/オリゴヌクレオチド二本鎖を生成するステップ;
(d)ステップ(c)でハイブリダイズした前記プローブの各々についての結合パターンを示す画像を得るために、前記試料を読み取るステップ;
(e)ステップ(c)において前記試料と関連付けられた前記標識を不活化または除去し、前記(b)の複数の捕捉剤およびそれらに関連付けられたオリゴヌクレオチドは依然として前記試料に結合させておくステップ、及び
(f)(a)(ii)の標識された核酸プローブの異なるサブセットを用いてステップ(c)および(d)を複数回繰り返すステップであって、最後の繰り返しを除いて各繰り返しの後にはステップ(e)を行って、試料の複数の画像を生成し、各画像は(c)で使用された標識された核酸プローブのサブセットに対応しているステップ、
を含む、方法。 - 前記試料が平面細胞試料である、請求項1に記載の方法。
- 前記(a)(i)のオリゴヌクレオチドが、少なくとも5ヌクレオチドの長さである、請求項1または請求項2に記載の方法。
- 前記(a)(ii)の標識された核酸プローブが、少なくとも5ヌクレオチドの長さである、請求項1〜3のいずれかに記載の方法。
- 前記(a)(i)の捕捉剤に結合している前記オリゴヌクレオチドの配列が、i.前記(a)(ii)の標識された核酸プローブの配列よりも長い、および、ii.さもなければ前記(a)(ii)の単一の標識された核酸プローブに相補的な部分配列を除いて互いに同じである、請求項1〜4のいずれかに記載の方法。
- 前記(c)の二本鎖が少なくとも15℃のTmを有する、請求項1〜5のいずれかに記載の方法。
- 前記(c)のハイブリダイズが、約2分間である、請求項1〜6のいずれかに記載の方法。
- 各標識された核酸プローブが、配列番号1〜47から選択される配列か、またはその相補配列を有する、請求項1〜7のいずれかに記載の方法。
- 捕捉剤に連結された各オリゴヌクレオチドが、配列番号48〜94から選択されるか、またはその相補配列である、請求項1〜8のいずれかに記載の方法。
- 前記複数の捕捉剤が少なくとも10個の捕捉剤である、請求項1〜9のいずれかに記載の方法。
- 前記サブセットの各々が、独立して2〜4個の標識された核酸プローブである、請求項1〜10のいずれかに記載の方法。
- 前記プローブがステップ(e)においてホルムアミドを用いて除去される、請求項1〜11のいずれかに記載の方法。
- 前記試料を70%〜90%のホルムアミド中で少なくとも1分間インキュベートし、続いて洗浄することによって、前記プローブがステップ(e)において除去される、請求項1〜12のいずれかに記載の方法。
- ステップ(f)がステップ(c)およびステップ(d)を2〜20回繰り返すことを含む、請求項1〜13のいずれかに記載の方法。
- 少なくとも2つの前記画像を解析することをさらに含む、請求項1〜14のいずれかに記載の方法。
- 前記解析が、少なくとも2つの前記画像を比較することまたは重ね合わせることを含む、請求項15に記載の方法。
- 全ての前記捕捉剤の前記試料への結合パターンを示す画像を生成するために、全ての前記画像を重ね合わせることをさらに含む、請求項1〜16のいずれかに記載の方法。
- 前記標識された核酸プローブが、蛍光標識されている、請求項1〜17のいずれかに記載の方法。
- 読み取りが、蛍光顕微鏡によって行われる、請求項1〜18のいずれかに記載の方法。
- 前記捕捉剤が、抗体またはアプタマーである、請求項1〜19のいずれかに記載の方法。
- 前記試料が、ホルマリン固定され、パラフィン包埋(FFPE)された切片または細胞スプレッドである、請求項1〜20のいずれかに記載の方法。
- ステップ(c)でハイブリダイズしたプローブを変性により試料から除去することによってステップ(e)が実施され、(b)の複数の捕捉剤およびそれらに関連付けられたオリゴヌクレオチドを試料に結合されたままにしておく、請求項1〜21のいずれかに記載の方法。
- ステップ(c)でハイブリダイズしたプローブを変性により試料から除去することによってステップ(e)が実施されず、(b)の複数の捕捉剤およびそれらに関連付けられたオリゴヌクレオチドを試料に結合されたままにしておく、請求項1〜21のいずれかに記載の方法。
- ステップ(e)が、ステップ(c)で前記試料と関連付けられた前記プローブ中の少なくとも1つの結合、または前記プローブを前記標識に連結するリンカーを切断し、それによって、前記プローブから前記標識を放出する、請求項23に記載の方法。
- 前記切断が、酵素的、化学的、または光への暴露を介して行われる、請求項24に記載の方法。
- ステップ(e)が、前記標識を不活化することによって行われる、請求項23に記載の方法。
- 少なくとも10個の核酸プローブの第1の集団を含むキットであって、
前記少なくとも10個のオリゴヌクレオチドの配列が、配列番号48〜94から選択される配列、またはそれらの相補配列からなる、キット。 - 前記オリゴヌクレオチドが標識されている、請求項27に記載のキット。
- 前記オリゴヌクレオチドが別々の容器に入っている、請求項27又は28に記載のキット。
- 前記オリゴヌクレオチドが、最大3個までの前記オリゴヌクレオチドを含む混合物中にある、請求項27〜29のいずれかに記載のキット。
- オリゴヌクレオチドの第2の集団をさらに含むキットであって、
前記第2の集団中の前記オリゴヌクレオチドがそれぞれ、前記第1の集団中のオリゴヌクレオチドの全長に相補的な配列を含む、請求項27〜30のいずれかに記載のキット。 - 前記第2の集団中の前記オリゴヌクレオチドが各々捕捉剤に連結されている、請求項27〜31のいずれかに記載のキット。
- 前記第2の集団中の前記オリゴヌクレオチドが、前記第1の集団中のオリゴヌクレオチドより長い、請求項27〜32のいずれかに記載のキット。
- 前記第2の集団中の前記オリゴヌクレオチドが、配列番号48〜94から選択されるか、またはその相補配列である、請求項27〜33のいずれかに記載のキット。
- 前記プローブが、ホスホジエステル結合ではない切断可能な連結を含む、請求項27〜34のいずれかに記載のキット。
- 試料ウェル、オートサンプラー、コントローラ、プロセッサ、およびプロセッサによって実行された場合にコントローラに試料を分析させる指示を含むコンピュータ可読媒体を含む、前記試料を分析するためのシステムであって、前記分析が、
(a)前記試料を複数の捕捉剤で標識することと、
(b)複数の標識された核酸プローブの第1のサブセットを試料に特異的にハイブリダイズすることと、
(c)ステップ(b)でハイブリダイズした前記プローブの各々についての結合パターンを示す画像を得るために、前記試料を読み取ることと、
(d)(b)において前記試料と関連付けられた前記標識を不活化または除去することと、および
(e)前記複数の標識された核酸プローブの異なるサブセットを用いて、ステップ(b)および(c)を複数回繰り返し、最後の繰り返しを除いて、各繰り返しの後にステップ(d)を続けることと、を含む、システム。 - 前記(b)のハイブリダイズが、約2分間である、請求項36に記載のシステム。
- ステップ(e)が、ステップ(b)および(c)を2〜20回繰り返すことを含む、請求項36又は37に記載のシステム。
- 前記複数の捕捉剤が少なくとも10個の捕捉剤である、請求項36〜38のいずれかに記載のシステム。
- 前記サブセットの各々が、独立して2〜4個の標識された核酸プローブである、請求項36〜39のいずれかに記載のシステム。
- 前記プローブがステップ(d)において変性によって除去される、請求項36〜40のいずれかに記載のシステム。
- 前記試料を70%〜90%のホルムアミド中で少なくとも1分間インキュベートし、続いて洗浄することによって、前記プローブがステップ(d)において除去される、請求項41に記載のシステム。
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