KR102383799B1 - 서열-기반의 유전 검사용 대조군을 제조하기 위한 조성물 및 방법 - Google Patents
서열-기반의 유전 검사용 대조군을 제조하기 위한 조성물 및 방법 Download PDFInfo
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Abstract
Description
도 1은 본 개시내용에 따른 일반적인 예시적 방법의 일반적인 블록 다이어그램을 보여준다.
도 2는 도 1의 방법에 일반적으로 예시된, 범용 어댑터를 부가하고, 어댑터를 증폭시키고, 제거하기 위한 일 실시형태의 더욱 상세한 다이어그램을 보여준다.
도 3은 본 명세서에 기재된 다양한 실시형태에 따라 생성될 수 있는 어댑터-주형-어댑터 분자(30)의 개략적인 도면을 보여준다. 도시된 분자(30)는 이중-가닥 주형 영역(31) 및 각 말단에 부착된 범용 어댑터(32)를 포함한다. 도시된 실시형태에서, 범용 어댑터(32)는 범용 제거 서열(33) 및 범용 프라이머 결합 부위(34)를 포함한다.
도 4는 본 명세서에 기재된 다양한 실시형태에 따라 생성될 수 있는 어댑터-주형-어댑터 분자(40)의 개략도를 보여준다. 도시된 분자(40)는 이중-가닥 주형 영역(41) 및 각 말단에 부착된 범용 어댑터(42)를 포함한다. 범용 어댑터는 단일-가닥 영역(43) 및 이중-가닥 영역(44)을 포함한다. 도시된 실시형태에서, 범용 어댑터(42)는 범용 제거 서열(45), 범용 신장 프라이머 결합 부위(46) 및 시료-특이적 인덱스(47)를 포함한다.
도 5는 본 명세서에 기재된 다양한 실시형태에 따라 생성될 수 있는 어댑터-주형-어댑터 분자(50)의 개략도를 보여준다. 도시된 분자(50)는 이중-가닥 주형 영역(51) 및 각 말단에 부착된 범용 어댑터(52)를 포함한다. 도시된 실시형태에서, 범용 어댑터(52)는 범용 프라이머 결합 부위(53)를 포함한다.
도 6은 본 명세서에 기재된 다양한 실시형태에 따라 생성될 수 있는 어댑터-주형-어댑터 분자(60)의 개략도를 보여준다. 도시된 분자(60)는 이중-가닥 주형 영역(61) 및 각 말단에 부착된 범용 어댑터(62)를 포함한다. 도시된 실시형태에서, 범용 어댑터(62)는 범용 프라이머 결합 부위(63)를 포함한다. 범용 프라이머 결합 부위(63)에 결합하는 범용 프라이머(64)도 또한 도시된 실시형태에 나타나 있다. 도시된 실시형태에서, 범용 프라이머(64)는 시료-특이적 인덱스(65) 및 범용 신장 프라이머 결합 부위(66)를 포함한다.
개략도는 반드시 일정한 비율로 도시된 것은 아니다. 도면에서 사용된 유사한 번호는 유사한 성분을 지칭할 수 있다. 그러나, 주어진 도면에서 성분을 지칭하기 위한 번호의 사용은 동일한 번호로 표지된 또 다른 도면에서의 성분을 제한하도록 의도되지 않는다는 것이 이해될 것이다. 또한, 성분을 지칭하기 위한 상이한 번호의 사용은 상이한 번호의 성분이 다른 번호의 성분과 동일하거나 유사할 수 없다는 것을 나타내도록 의도되지 않는다.
Claims (73)
- 복수의 재생된 주형 핵산(regenerated template nucleic acid: reDNA)을 제조하기 위한 방법으로서,
대상체로부터 수득되는 시료로부터 유래하는, 복수의 이중-가닥 주형 핵산을 제공하는 단계;
범용 어댑터를 상기 주형 핵산의 양 말단에 라이게이션(ligation)시켜, 상기 범용 어댑터에 의해 플랭킹된(flanked) 주형 핵산을 포함하는 복수의 어댑터-주형-어댑터 분자를 형성하는 단계로서,
상기 범용 어댑터가 이중 가닥 핵산의 영역을 포함하는 단계; 및
상기 복수의 어댑터-주형-어댑터 분자를 제1 범용 프라이머 및 제2 범용 프라이머로 증폭시켜, 증폭된 어댑터-주형-어댑터 분자를 초래하는 단계;
상기 증폭된 어댑터-주형-어댑터 분자의 양 말단으로부터 범용 어댑터의 적어도 일부를 제거하여, 제거된 범용 어댑터 및 복수의 reDNA를 초래하는 단계를 포함하는, 방법. - 제1항에 있어서, 상기 이중-가닥 주형 핵산이 DNA인, 방법.
- 제1항에 있어서, 상기 이중-가닥 주형 핵산이 세포 유리 DNA(cell free DNA: cfDNA)를 포함하는, 방법.
- 제1항에 있어서, 상기 대상체가 임신한 인간이며, 상기 이중-가닥 주형 핵산이 태아 및 모체 핵산의 혼합물을 포함하는, 방법.
- 제4항에 있어서, 상기 복수의 이중-가닥 주형 핵산이 cfDNA를 포함하는, 방법.
- 제4항에 있어서, 상기 태아가 유전 질환을 포함하지 않는, 방법.
- 제4항에 있어서, 상기 태아가 유전 질환을 포함하는, 방법.
- 제6항 또는 제7항에 있어서, 상기 유전 질환이 이수성인, 방법.
- 제8항에 있어서, 상기 이수성이 삼염색체인, 방법.
- 제9항에 있어서, 상기 삼염색체가 21번 삼염색체, 18번 삼염색체, 13번 삼염색체, 9번 삼염색체, 8번 삼염색체, 22번 삼염색체, XXX, XXY 또는 XYY인, 방법.
- 제9항에 있어서, 상기 유전 질환이 뉴클레오타이드 서열의 과소-표현(under-representation)을 포함하는, 방법.
- 제1항에 있어서, 상기 대상체가 신생물을 갖는 것으로 의심되는, 방법.
- 제12항에 있어서, 상기 복수의 이중-가닥 주형 핵산이 순환 종양 DNA 및 세포 유리 정상 DNA를 포함하는, 방법.
- 제1항에 있어서, 상기 복수의 이중-가닥 주형 핵산이 혈액, 소변, 가래 또는 대변을 포함하는, 방법.
- 제1항에 있어서, 상기 라이게이션시키는 단계 이전에, 상기 복수의 이중-가닥 주형 핵산을 처리하여, 말단을 블런트(blunt) 말단이 되도록 변형시키는 단계를 추가로 포함하는, 방법.
- 제1항에 있어서, 상기 라이게이션시키는 단계 이전에, 상기 복수의 이중-가닥 주형 핵산을 처리하여, 3' 말단이 3' 오버행 구조로서 종결되도록 변형시키는 단계를 추가로 포함하는, 방법.
- 제1항에 있어서, 상기 범용 어댑터가 적어도 하나의 범용 프라이머 결합 부위를 포함하는 단일-가닥 비-상보성 핵산 가닥의 영역을 추가로 포함하며, 상기 라이게이션시키는 단계가 상기 범용 어댑터의 이중 가닥 핵산의 영역을 상기 주형 핵산의 각 말단에 공유적으로 부착시키는, 방법.
- 제1항에 있어서, 상기 증폭시키는 단계가 지수적 증폭 반응을 포함하는, 방법.
- 제18항에 있어서, 상기 지수적 증폭 반응이 중합효소 연쇄 반응(PCR)을 포함하는, 방법.
- 제1항에 있어서, 상기 증폭시키는 단계가 낮은 오차율을 갖는 DNA 중합효소를 포함하는, 방법.
- 제1항에 있어서, 상기 범용 어댑터가 제한 엔도뉴클레아제 인식 부위를 포함하며, 상기 제거하는 단계가 상기 증폭된 어댑터-주형-어댑터 분자를 제한 엔도뉴클레아제에 노출시키고, 상기 어댑터-주형-어댑터 분자를 절단하여, 제거된 범용 어댑터 및 복수의 reDNA를 초래하는 것을 포함하는, 방법.
- 제21항에 있어서, 상기 제한 엔도뉴클레아제의 절단 부위 및 인식 부위가 분리된 방법.
- 제22항에 있어서, 상기 제한 엔도뉴클레아제가 SapI, MlyI 또는 BpuEI인, 방법.
- 제1항에 있어서, 상기 reDNA가 상기 주형의 각 말단에 상기 범용 어댑터의 일부를 보유하는, 방법.
- 제1항에 있어서, 상기 reDNA가 상기 주형의 각 말단에 상기 범용 어댑터의 일부를 보유하지 않는, 방법.
- 제1항에 있어서, 상기 제1 범용 프라이머 및 상기 제2 범용 프라이머가 포획제(capture agent)를 포함하는, 방법.
- 제26항에 있어서, 상기 포획제가 비오틴을 포함하는, 방법.
- 제26항에 있어서, 상기 범용 어댑터가 제한 엔도뉴클레아제 인식 부위를 포함하며, 상기 제거하는 단계가 상기 어댑터-주형-어댑터 분자를 상기 포획제에 결합하는 화합물을 포함하는 표면과 접촉시켜, 결합된 증폭 어댑터-주형-어댑터 분자를 초래하고, 상기 결합된 증폭 어댑터-주형-어댑터 분자를 상기 결합된 증폭 어댑터-주형-어댑터 분자를 절단하는 제한 엔도뉴클레아제에 노출시켜 제거된 범용 어댑터 및 복수의 reDNA를 초래하는 것을 포함하며, 상기 제거된 범용 어댑터가 상기 표면에 결합되는, 방법.
- 제26항에 있어서, 상기 제거하는 단계가 상기 제거된 범용 어댑터를 상기 reDNA로부터 분리하는 것을 추가로 포함하는, 방법.
- 제29항에 있어서, 상기 분리하는 단계가 상기 제거된 범용 어댑터 및 상기 reDNA를 포함하는 혼합물을 상기 포획제에 결합하는 화합물과 접촉시키는 것을 포함하며, 상기 화합물이 표면에 부착되며, 상기 제거된 범용 어댑터가 상기 표면에 결합되는, 방법.
- 제28항 또는 제30항에 있어서, 상기 표면이 비드를 포함하는, 방법.
- 제28항 또는 제30항에 있어서, 상기 결합된 제거 범용 어댑터를 포함하는 표면을 제거하여 상기 reDNA로부터 상기 제거된 범용 어댑터의 분리를 초래하는 단계를 추가로 포함하는, 방법.
- 제1항에 있어서, 상기 제거하는 단계가 소정의 크기 범위 내에 속하는 reDNA의 선택을 포함하는, 방법.
- 서열결정 라이브러리를 제조하기 위한 방법으로서,
대상체로부터 수득되는 시료로부터 기원하는 복수의 재생된 주형 핵산(reDNA)을 제공하는 단계로서, 각각의 reDNA가 주형인, 상기 복수의 reDNA를 제공하는 단계;
범용 어댑터에 의해 플랭킹된 주형 핵산을 포함하는 복수의 어댑터-주형-어댑터 분자를 형성하기 위해 범용 어댑터를 상기 주형 핵산의 양 말단에 라이게이션시키며, 여기서, 상기 범용 어댑터가 (i) 이중 가닥 핵산의 영역, 및 (ii) 적어도 하나의 범용 프라이머 결합 부위를 포함하는 단일-가닥 비-상보성 핵산 가닥의 영역을 포함하고,
그에 의해 주형의 적어도 일부의 서열을 결정하기 위한 서열결정 라이브러리(sequencing library)를 생성하는 단계를 포함하되, 상기 reDNA는 제1항에 따른 방법에 의해 제공되는, 방법. - 제34항에 있어서, 상기 단일-가닥 비-상보성 핵산 가닥의 영역이 적어도 하나의 범용 신장 프라이머 결합 부위를 추가로 포함하는, 방법.
- 제34항에 있어서, 상기 단일-가닥 비-상보성 핵산 가닥의 영역에 대하여 원위인 이중 가닥 핵산의 영역이 블런트 말단 구조로서 종결되는, 방법.
- 제36항에 있어서, 상기 복수의 주형이 블런트 말단 구조를 포함하는, 방법.
- 제34항에 있어서, 상기 단일-가닥 비-상보성 핵산 가닥의 영역에 대하여 원위인 이중 가닥 핵산의 영역이 3' 오버행 구조로서 종결되는, 방법.
- 제38항에 있어서, 상기 3' 오버행 구조가 1 내지 4개 뉴클레오타이드의 오버행 구조를 포함하는, 방법.
- 제38항에 있어서, 상기 3' 오버행 구조가 T 뉴클레오타이드의 오버행을 포함하는, 방법.
- 제38항에 있어서, 상기 주형이 상기 이중 가닥 핵산의 영역의 3' 오버행 구조에 상보성인 3' 오버행 구조를 포함하는, 방법.
- 제34항에 있어서,
복수의 증폭 부위를 포함하는 표면을 제공하는 단계로서,
상기 증폭 부위가 유리 3' 말단을 갖는 적어도 2개의 부착된 단일 가닥 핵산 집단을 포함하는 단계, 및
상기 증폭 부위를 포함하는 표면을 각각이 개별 어댑터-주형-어댑터 분자로부터의 앰플리콘의 클론 집단을 포함하는 복수의 증폭 부위를 생성하기에 적합한 조건 하에서 복수의 어댑터-주형-어댑터 분자와 접촉시키는 단계를 추가로 포함하는, 방법. - 제42항에 있어서, 상기 복수의 어댑터-주형-어댑터 분자의 수가 상기 증폭 부위의 수를 초과하며, 상기 어댑터-주형-어댑터 분자가 상기 증폭 부위에 유체 접근할 수 있고, 상기 증폭 부위의 각각이 몇몇의 어댑터-주형-어댑터 분자에 대한 소정의 용량을 포함하는, 방법.
- 제42항에 있어서, 접촉시키는 단계가 (i) 상기 어댑터-주형-어댑터 분자를 평균 수송 속도로 상기 증폭 부위로 수송하는 것과, (ii) 상기 증폭 부위에 존재하는 상기 어댑터-주형-어댑터 분자를 평균 증폭 속도로 증폭시키는 것을 동시에 포함하며, 상기 평균 증폭 속도가 평균 수송 속도를 초과하는, 방법.
- 제1항의 어댑터-주형-어댑터 분자를 포함하는 조성물로서, 상기 범용 어댑터가 제한 엔도뉴클레아제 인식 부위를 포함하는, 조성물.
- 제45항에 있어서, 상기 제한 엔도뉴클레아제가 SapI, MlyI 또는 BpuEI인, 조성물.
- 제1항의 방법에 의해 생성되는 복수의 reDNA를 포함하는 조성물로서, 인공 생물학적 유체를 추가로 포함하는, 조성물.
- 제47항에 있어서, 상기 인공 생물학적 유체가 인공 혈장을 포함하는, 조성물.
- 제1항에 있어서, 상기 대상체가 병원체 감염을 갖는 것으로 의심되는, 방법.
- 제49항에 있어서, 상기 병원체가 박테리아 병원체 또는 바이러스 병원체인, 방법.
- 제50항에 있어서, 상기 시료가 바이러스 DNA 또는 박테리아 DNA를 포함하는, 방법.
- 제50항에 있어서, 상기 시료가 혈액, 소변, 가래 또는 대변을 포함하는, 방법.
- 핵산 검출 검사에서의 대조군의 사용 방법으로서,
a. 제1항의 방법을 사용하여 복수의 재생된 주형 핵산(reDNA)을 제공하는 단계;
b. 검사 시료 상에서 그리고 단계 (a)에서 수득되는 reDNA 상에서 핵산 검출 검사를 수행하는 단계;
c. 상기 reDNA를 대조군으로서 사용하여 상기 핵산 검출 검사로부터의 결과를 분석하는 단계
를 포함하는, 핵산 검출 검사에서의 대조군의 사용 방법. - 제53항에 있어서, 상기 핵산 검출 검사가 서열결정을 포함하는, 방법.
- 제53항에 있어서, 상기 핵산 검출 검사가 마이크로어레이 분석을 포함하는, 방법.
- 제53항에 있어서, 상기 핵산 검출 검사가 효소적 과정을 포함하는, 방법.
- 제1항의 방법을 사용하여 수득되는 복수의 재생된 주형 핵산(reDNA) 상에서 핵산 검출 검사를 수행하는 단계를 포함하는, 방법.
- 제57항에 있어서, 상기 reDNA가 라이브러리 제조 방법의 품질을 위한 대조군인, 방법.
- 제57항에 있어서, 상기 reDNA가 시퀀싱 기기를 위한 교정 대조군인, 방법.
- 제57항에 있어서, 상기 reDNA가 어레이 기기를 위한 교정 대조군인, 방법.
- 제57항에 있어서, 상기 reDNA가 핵산 서열결정 검사를 위한 밸리데이션(validation) 대조군인, 방법.
- 제61항에 있어서, 상기 reDNA가 서열결정-기반의 비침습적 출생전 검사를 위한 밸리데이션 대조군인, 방법.
- 제61항에 있어서, 상기 reDNA가 서열결정-기반의 종양 검출 검사를 위한 밸리데이션 대조군인, 방법.
- 제61항에 있어서, 상기 reDNA가 서열결정-기반의 동반 진단 검사를 위한 밸리데이션 대조군인, 방법.
- 제64항에 있어서, 상기 동반 진단 검사가 시료 내의 유전적 변이체의 존재 또는 동일성을 결정하여, 치료적 처치가 치료 요법에서 적합할지 여부를 결정하는, 방법.
- 제10항에 있어서, 상기 유전 질환이 뉴클레오타이드 서열의 과소-표현(under-representation)을 포함하는, 방법.
- 제34항에 있어서, 상기 대상체가 병원체 감염이 의심되는, 방법.
- 제67항에 있어서, 상기 병원체가 박테리아 병원체 또는 바이러스 병원체인, 방법.
- 제68항에 있어서, 상기 시료가 바이러스 DNA 또는 박테리아 DNA를 포함하는, 방법.
- 제68항에 있어서, 상기 시료가 혈액, 소변, 가래 또는 대변을 포함하는, 방법.
- 제1항에 있어서, 상기 reDNA가 상기 시료에서 관찰된 크기와 유사하거나 동일한 크기의 주형 분자 집단을 포함하는 것인 방법.
- 제34항에 있어서, 각각의 reDNA가 상기 대상체로부터 얻은 시료에서 관찰된 크기와 유사하거나 동일한 크기의 주형 분자 집단을 포함하는 증폭된 주형인 방법.
- 하기를 포함하는 방법:
대상체로부터 얻은 시료로부터 유래하는 복수의 이중 가닥 주형 핵산을 제공하는 단계로서, 선택적으로 상기 대상체는 임신한 인간이고, 상기 이중 가닥 주형 핵산은 태아 및 모체 핵산의 혼합물을 포함하는, 상기 단계;
범용 어댑터를 상기 주형 핵산의 양 말단에 결찰하여 상기 범용 어댑터에 의해 플랭킹된 주형 핵산을 포함하는 복수의 어댑터-주형-어댑터 분자를 형성하는 단계로서, 상기 범용 어댑터는 이중 가닥 핵산 영역을 포함하는, 상기 단계;
지수 증폭 반응(예: 중합효소 연쇄 반응(PCR)) 등에 의해 상기 복수의 어댑터-주형-어댑터 분자를 제1 범용 프라이머 및 제2 범용 프라이머로 증폭하여 증폭된 어댑터-주형-어댑터 분자를 생성하는 단계;
상기 증폭된 어댑터-주형-어댑터 분자의 양 말단으로부터 상기 범용 어댑터의 적어도 일부를 제거하여, 제거된 범용 어댑터 및 복수의 재생된 주형 핵산(reDNA)을 생성하는 단계로서, 여기서 상기 reDNA는 상기 대상체의 시료에서 발견된 크기 분포와 유사하거나 동일한 크기 분포를 가지는 주형 분자 집단을 포함하는, 상기 단계.
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