KR20180033587A - 제자리 증폭에 의한 세포-유리 핵산 분자의 제조 방법 - Google Patents
제자리 증폭에 의한 세포-유리 핵산 분자의 제조 방법 Download PDFInfo
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Abstract
Description
도 1b는 10 μL의 소변으로부터 CGD 방법을 사용하여 생산된 cfDNA의 아가로오스 겔 전기영동을 보여준다. cfDNA는 브롬화에티듐을 사용하여 가시화되었다. 레인 1 내지 6은 건강한 대상으로부터의 신선한 소변 샘플이고 레인 7은 비교를 위한 혈장 샘플이었다.
도 2는 각각 CGD 방법 및 QIAamp 키트를 사용하여 20 μL 및 200 μL의 혈장으로부터 제조된 cfDNA에 대하여 TaqMan 정량적 실시간 PCR을 사용하여 생성된 KRAS의 증폭 플롯을 보여준다.
도 3a는 각각 CGD 방법 및 QIAamp 키트를 사용하여 20 μL 및 200 μL의 혈장으로부터 제조된 cfDNA에 대하여 TaqMan 정량적 실시간 PCR을 사용하여 생성된 BRAF의 증폭 플롯을 보여준다.
도 3b는 각각 CGD 방법 및 QIAamp 키트를 사용하여 20 μL 및 200 μL의 혈장으로부터 제조된 cfDNA에 대하여 TaqMan 정량적 실시간 PCR을 사용하여 생성된 PIK3CA의 증폭 플롯을 보여준다.
도 3c는 각각 CGD 방법 및 QIAamp 키트를 사용하여 20 μL 및 200 μL의 혈장으로부터 제조된 cfDNA에 대하여 TaqMan 정량적 실시간 PCR을 사용하여 생성된 NRAS의 증폭 플롯을 보여준다.
도 4는 보존제 존재 및 부재의 상업적 타액 샘플링 키트를 사용하여 수집된 20 μL의 타액으로부터 CGD 방법을 사용하여 생산된 cfDNA의 아가로오스 겔 전기영동(2%)을 보여준다. cfDNA는 브롬화에티듐을 사용하여 가시화되었다. 레인 1 및 2는 보존제 존재의 상업적 샘플링 키트로 얻어진 타액 샘플로부터의 결과를 보여주고 레인 3은 음성 대조(타액 샘플이 존재하지 않음)인 한편, 레인 4 및 5는 보존제 부재의 상업적 샘플링 키트로 얻어진 타액 샘플로부터의 결과이고 레인 6은 음성 대조(타액 샘플이 존재하지 않음)이다.
도 5는 20 μL의 혈장 및 뇌척수액과 10 μL의 소변으로부터 CGD 방법을 사용하여 생산된 cfDNA의 아가로오스 겔 전기영동(2%)을 보여준다. cfDNA는 브롬화에티듐을 사용하여 가시화되었다. 샘플 배치는 다음과 같다(cfDNA 농도는 괄호에): 레인 1 CSF(8.5), 레인 2 소변(5.1), 레인 3 혈장(22), 레인 4 혈장(59), 레인 5 혈장(36.4), 레인 6 음성 대조; 레인 7 소변(52.2), 레인 8 소변(11.2), 레인 9 소변(89.6) 및 레인 10 소변(30).
도 6은 혈장, CSF 및 소변 샘플로부터 CGD 방법에 의해 제조된 cfDNA의 크기 분포 및 정량을 결정하기 위한 Agilent 2100 Bioanalyzer를 사용한 도 5의 샘플 1 내지 5의 분석을 보여준다.
도 7은 PIK3CA, PTEN 및 KRAS 유전자에 대하여, 난소암 환자 처치-전 및 처치-후 CGD 방법 및 조직 생검으로 얻어진 결과 사이의 비교를 보여준다.
도 8a는 폐암으로 진단받은 대상에서 cfDNA 돌연변이의 결정을 보여준다. 요법 중 순환 cfDNA에서 더 낮은 돌연변이 부하 및 50일 동안의 안정적 질환 이후 상승된 돌연변이 부하. 처치의 개시는 흑색 화살표로 표시된다. 돌연변이 부하는 환자 당 검출되는 체세포 돌연변이의 수로서 표현된다(그래프의 우측에서 수직 눈금). 청색 점선은 PET/CT가 수행된 시간을 나타낸다. 시점은 cfDNA 분석이 시행된 시간을 나타낸다.
도 8b는 대상의 PET/CT 이미지를 보여주는데, 11-30-15에서 안정적 질환 및 2016년 3월에 진행성 질환을 나타내고, 도 XA에서의 cfDNA 분석의 결과를 확인한다.
도 9a는 췌장-주위 림프절 선암종으로 진단받은 대상에서 cfDNA 돌연변이의 결정을 보여준다. 순환 cfDNA에서 돌연변이 부하는 요법 중 저하되어 안정적 질환을 나타낸다. 안정적 질환은 단백질 생물표지, PET/CT 이미지(우측 그림) 및 임상적 결과와 일치하였다. 돌연변이 부하는 환자 당 검출되는 체세포 돌연변이의 수로서 표현된다(그래프 우측에서 수직 눈금). 청색 점선은 PET/CT가 수행된 시간을 나타낸다. 시점은 cfDNA 분석이 시행된 시간을 나타낸다.
도 9b는 대상의 PET/CT 이미지를 보여주는데, 요법 후 안정적 질환을 나타내어 도 XA에서의 cfDNA 분석의 결과를 확인한다.
도 10은 -20℃(레인 1 내지 5) 및 4℃(레인 6 내지 10)에서 저장된 시약을 사용하여 CGD 방법에 의해 제조되고 2% 겔에서의 아가로오스 겔 전기영동을 받고 브롬화에티듐을 사용하여 가시화된 분석 가능한 cfDNA 풀을 보여준다(분자량 단계 1 kb).
도 11은 0, 0.001, 0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 및 1 ng/μL의 농도의 정제된 DNA를 사용하여 CGD 방법으로 생성된 표준 곡선을 보여준다.
도 12는 CGD 방법을 사용하여 20 μL의 혈장으로부터의 cfRNA로부터 생성된 cDNA의 증폭 플롯을 보여준다.
Claims (63)
- 세포-유리 핵산(cfNA)의 제자리 증폭 방법에 있어서,
a. 복수의 cfNA 분자를 포함하는 액체 샘플을 제공하는 단계;
b. 샘플에 적어도 하나의 처리 단계를 수행하는 단계;
c. 샘플 중 cfNA의 적어도 일부의 5' 말단 또는 3' 말단 중 적어도 하나에 외인성 핵산 서열을 부가하기 위해 효소 혼합물을 사용하여 샘플 중 cfNA의 적어도 일부를 변형된 cfNA로 전환시켜 증폭 가능한 cfNA 풀을 생성하는 단계로서, 외인성 핵산 서열은 프라이머에 결합 가능한 프라이머 부위를 포함하는, 단계; 및
d. 증폭 가능한 cfNA 풀을 증폭시켜 cfNA의 분석 가능한 풀을 생산하는 단계를 포함하며,
샘플 중 cfNA는 핵산 정제 단계를 받지 않는, 증폭 방법. - 제1항에 있어서, cfNA는 cfDNA인, 방법.
- 제1항에 있어서, cfNA는 cfRNA인, 방법.
- 제3항에 있어서, cfRNA는 단계 (c) 아전에 이중-가닥 DNA로 전환되는, 증록 방법.
- 제4항에 있어서, 효소 혼합물은 DNase 활성을 포함하는 것인, 증폭 방법.
- 제1항에 있어서, 샘플 중 cfNA의 적어도 일부가 함께 연결되는, 증폭 방법.
- 제1항에 있어서, 샘플 중 cfNA는 50 bp 내지 2,000 bp, 100 bp 내지 1,000 bp, 50 bp 내지 600 bp, 100 bp 내지 500 bp, 100 bp 내지 400 bp, 100 bp 내지 300 bp, 100 bp 내지 200 bp, 200 bp 내지 300 bp, 300 bp 내지 400 bp, 400 bp 내지 500 bp 또는 500 bp 내지 600 bp의 단편 크기 분포를 갖는 것인, 증폭 방법.
- 제1항에 있어서, 방법이 단일 반응 용기에서 실시되는 것인, 증폭 방법.
- 제1항에 있어서, 프라이머 부위는 범용(universal) 프라이머 부위인, 증폭 방법.
- 제1항에 있어서, 외인성 핵산 서열은 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 적어도 일부의 5' 말단 및 3' 말단 둘 다에 부가되는, 증폭 방법.
- 제1항에 있어서, 샘플 중 cfNA의 적어도 50%, 적어도 60%, 적어도 70%, 적어도 80%, 적어도 90%, 적어도 95% 또는 적어도 99%가 외인성 핵산 서열을 포함하도록 변형되는, 증폭 방법.
- 제1항에 있어서, 효소 혼합물은 다음의 효소를 포함하는 것인, 증폭 방법:
a. 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소 및 DNA 리가아제;
b. 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제 및 DNA 폴리뉴클레오티드 키나아제;
c. 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제, DNA 폴리뉴클레오티드 키나아제 및 우라실 DNA 글리코실라아제; 또는
d. 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제, DNA 폴리뉴클레오티드 키나아제, 우라실 DNA 글리코실라아제 및 단일-가닥 DNA 핵산 절단 효소. - 제1항에 있어서, 효소 혼합물은 다음의 효소를 포함하는 것인, 증폭 방법:
a. T4 DNA 중합효소 및 T4 DNA 리가아제;
b. DNA 중합효소 I의 Klenow 단편 및 T4 DNA 리가아제;
c. T4 DNA 중합효소, T4 DNA 리가아제 및 DNA 중합효소 I의 Klenow 단편;
d. T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편 및 T4 폴리뉴클레오티드 키나아제;
e. T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편, T4 폴리뉴클레오티드 키나아제 및 우라실-DNA 글리코실라아제; 또는
f. T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편, T4 폴리뉴클레오티드 키나아제, 우라실-DNA 글리코실라아제 및 Nb.BbvC1. - 제1항에 있어서, 샘플은 단계 (c)에서 순차적 가열 프로그램을 받는, 증폭 방법.
- 제14항에 있어서, 순차적 가열 프로그램은 다음 단계를 포함하는 증폭 방법: 제1의 정의된 지속 기간 동안 16℃; 제2의 정의된 지속 기간 동안 24℃; 제3의 정의된 지속 기간 동안 37℃; 및 제4의 정의된 지속 기간 동안 75℃.
- 제1항에 있어서, 외인성 핵산 서열은 프라이머 부위의 적어도 한쪽에 측면으로 변성 핵산 서열(degenerate nucleic acid sequence)을 갖는 것인, 증폭 방법.
- 제16항에 있어서, 외인성 핵산 서열은 프라이머 부위의 양쪽에 측면으로 변성 핵산 서열을 갖는 것인, 증폭 방법.
- 제16항에 있어서, 외인성 핵산 서열은 초기 복제 단계 중에 cfNA로 통합되는, 증폭 방법.
- 제16항에 있어서, 외인성 핵산 서열은 서열번호: 1 및 2의 서열을 갖는 것인, 증폭 방법.
- 제16항 내지 제19항 중 어느 한 항에 있어서, 효소 혼합물은 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소 및 DNA 리가아제를 포함하는 것인, 증폭 방법.
- 제16항 내지 제19항 중 어느 한 항에 있어서, 효소 혼합물은 T4 DNA 중합효소 및 T4 DNA 리가아제를 포함하는 것인, 증폭 방법.
- 제1항에 있어서, 외인성 핵산 서열은 이중-가닥 역위 반복 및 단일-가닥 루프를 포함하는 올리고뉴클레오티드이고, 샘플 중 cfNA의 적어도 일부는 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 평활 말단(blunt end)을 갖도록 제조되는 것인, 증폭 방법.
- 제22항에 있어서, 외인성 핵산 서열의 각각의 가닥은 샘플 중 cfNA의 적어도 일부에 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 cfNA의 각각의 가닥에 연결되는, 증폭 방법.
- 제23항에 있어서, 단일-가닥 루프는 단계 (d) 이전에 절단되는, 증폭 방법.
- 제24항에 있어서, 외인성 핵산 서열은 서열번호: 10의 서열을 갖는 것인, 증폭 방법.
- 제22항 내지 제25항 중 어느 한 항에 있어서, 효소 혼합물은 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제, DNA 폴리뉴클레오티드 키나아제 및 우라실-DNA 글리코실라아제를 포함하는 것인, 증폭 방법.
- 제22항 내지 제25항 중 어느 한 항에 있어서, 효소 혼합물은 T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편, T4 폴리뉴클레오티드 키나아제 및 우라실-DNA 글리코실라아제를 포함하는 것인, 증폭 방법.
- 제1항에 있어서, 외인성 핵산 서열은 이중-가닥 역위 반복 및 단일-가닥 루프를 포함하는 올리고뉴클레오티드이고, 샘플 중 cfNA의 적어도 일부는 cfNA의 3' 말단 또는 5' 말단 중 적어도 하나에 꼬리 서열(tail sequence)을 갖도록 제조되는 것인, 증폭 방법.
- 제28항에 있어서, 외인성 핵산 서열의 각각의 가닥은 샘플 중 cfNA의 적어도 일부에 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 cfNA의 각각의 가닥에 연결되는, 증폭 방법.
- 제29항에 있어서, 단일-가닥 루프는 단계 (d) 이전에 절단되는, 증폭 방법.
- 제30항에 있어서, 외인성 핵산 서열은 서열번호: 9 또는 서열번호: 7의 서열을 갖는 것인, 증폭 방법.
- 제28항 내지 제31항 중 어느 한 항에 있어서, 효소 혼합물은 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제, DNA 폴리뉴클레오티드 키나아제 및 우라실-DNA 글리코실라아제를 포함하는 것인, 증폭 방법.
- 제28항 내지 제31항 중 어느 한 항에 있어서, 효소 혼합물은 T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편, T4 폴리뉴클레오티드 키나아제 및 우라실-DNA 글리코실라아제를 포함하는 것인, 증폭 방법.
- 제1항에 있어서, 외인성 핵산 서열은 이중-가닥 역위 반복 및 단일-가닥 루프를 포함하는 올리고뉴클레오티드이고, 샘플 중 cfNA의 적어도 일부는 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 평활 말단을 갖도록 제조되는 것인, 증폭 방법.
- 제34항에 있어서, 외인성 핵산 서열의 한 가닥은 샘플 중 cfNA의 적어도 일부에 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 cfNA의 한 가닥에 연결되는, 증폭 방법.
- 제35항에 있어서, 외인성 핵산 서열은 서열번호: 5의 서열을 갖는 것인, 증폭 방법.
- 제34항 내지 제36항 중 어느 한 항에 있어서, 효소 혼합물은 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제, DNA 폴리뉴클레오티드 키나아제, 단일-가닥 DNA 핵산 절단 효소 및 선택적으로 복제 블록 활성화 활성을 포함하는 것인, 증폭 방법.
- 제34항 내지 제36항 중 어느 한 항에 있어서, 효소 혼합물은 T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편, T4 폴리뉴클레오티드 키나아제, Nb.BbvC1 및 선택적으로 우라실-DNA 글리코실라아제를 포함하는 것인, 증폭 방법.
- 제1항에 있어서, 외인성 핵산 서열은 이중-가닥 역위 반복, 단일-가닥 루프 및 복제 블록을 포함하는 올리고뉴클레오티드이고, 샘플 중 cfNA의 적어도 일부는 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 평활 말단을 갖도록 제조되는 것인, 증폭 방법.
- 제39항에 있어서, 복제 블록은 복제 블록 활성화 활성에 의한 작용을 받기까지는 비활성화인, 증폭 방법.
- 제39항에 있어서, 외인성 핵산 서열의 한 가닥은 샘플 중 cfNA의 적어도 일부에 cfNA의 5' 말단, cfNA의 3' 말단 또는 cfNA의 5' 말단 및 3' 말단 둘 다에서 cfNA의 한 가닥에 연결되는, 증폭 방법.
- 제41항에 있어서, 외인성 핵산 서열은 서열번호: 5의 서열을 갖는 것인, 증폭 방법.
- 제39항 내지 제42항 중 어느 한 항에 있어서, 효소 혼합물은 3'-5' 엑소뉴클레아제 활성과 함께 또는 없이 5'-3' 중합효소 활성을 갖는 DNA 중합효소, DNA 리가아제, DNA 폴리뉴클레오티드 키나아제, 단일-가닥 DNA 핵산 절단 효소 및 복제 블록 활성화 활성을 포함하는 것인, 증폭 방법.
- 제39항 내지 제42항 중 어느 한 항에 있어서, 효소 혼합물은 T4 DNA 중합효소, T4 DNA 리가아제, DNA 중합효소 I의 Klenow 단편, T4 폴리뉴클레오티드 키나아제, Nb.BbvC1 및 우라실-DNA 글리코실라아제를 포함하는 것인, 증폭 방법.
- 제1항에 있어서, 적어도 하나의 처리 단계는 액체 샘플을 희석하는 것, 액체 샘플을 가열하는 것, 액체 샘플 중 cfNA를 단편화하는 것 또는 이들의 조합인, 증폭 방법.
- 제1항에 있어서, 적어도 하나의 처리 단계는 액체 샘플을 희석하는 것, 액체 샘플을 가열하는 것 또는 이들의 조합인, 증폭 방법.
- 제1항에 있어서, 가열 단계는 cfNA의 단편화를 초래하는, 증폭 방법.
- 제48항에 있어서, 액체 샘플 중 cfNA는 가열 단계 이후 50 bp 내지 600 bp, 100 bp 내지 500 bp, 100 bp 내지 400 bp, 100 bp 내지 300 bp, 100 bp 내지 200 bp, 200 bp 내지 300 bp, 300 bp 내지 400 bp, 400 bp 내지 500 bp 또는 500 bp 내지 600 bp의 단편 크기 분포를 갖는 것인, 증폭 방법.
- 제1항에 있어서, 액체 샘플은 혈청 샘플, 혈장 샘플, 소변 샘플, 타액 샘플 또는 뇌척수액 샘플인, 증폭 방법.
- 제1항에 있어서, 액체 샘플의 용량은 100 μL 미만인, 증폭 방법.
- 제1항에 있어서, 액체 샘플의 용량은 10 μL 내지 50 μL인, 증폭 방법.
- 제1항에 있어서, 변형된 cfNA는 샘플에 존재하는 원래의 cfNA 서열의 일부, 또는 이의 보체, 및 외인성 핵산 서열을 포함하는 것인, 증폭 방법.
- cfNA의 분석 방법으로서,
a. 제1항의 방법에 의해 생산되는 cfNA의 분석 가능한 풀을 제공하는 단계; 및
b. cfNA의 분석 가능한 풀을 분석하여 cfNA 분자의 분석 가능한 풀에서 cfNA의 특징을 결정하는 단계를 포함하는, 분석 방법. - 제53항에 있어서, cfNA의 특징은 염색체 이상, 단일 뉴클레오티드 다형성, 유전자 돌연변이, 점 돌연변이, 결실, 삽입, 메틸화 패턴 및 복제수 변이로 구성되는 그룹으로부터 선택되는 것인, 분석 방법.
- 대상을 질환이 있거나 질환의 위험이 있는 것으로 진단하는 방법으로서,
a. 제1항의 방법에 의해 생산되는 cfNA의 분석 가능한 풀을 제공하는 단계;
b. cfNA의 분석 가능한 풀을 분석하여 cfNA 분자의 분석 가능한 풀에서 질환과 관련되는 cfNA의 특징을 결정하는 단계; 및
c. 특징의 존재를 기반으로 하여 대상이 질환이 있거나 이에 대한 위험이 있는 것으로 결정하거나 특징의 부재를 기반으로 하여 대상이 질환이 없는 것으로 결정하는 단계를 포함하는, 진단 방법. - 제55항에 있어서, cfNA의 특징은 염색체 이상, 단일 뉴클레오티드 다형성, 유전자 돌연변이, 점 돌연변이, 결실, 삽입, 메틸화 패턴 및 복제수 변이로 구성되는 그룹으로부터 선택되는 것인, 진단 방법.
- 질환이 있는 대상에 대한 치료적 개입을 결정하는 방법으로서,
a. 제1항의 방법에 의해 생산되는 cfNA의 분석 가능한 풀을 제공하는 단계;
b. cfNA의 분석 가능한 풀을 분석하여 cfNA 분자의 분석 가능한 풀에서 질환과 관련되는 cfNA의 특징을 결정하는 단계; 및
c. 결정된 특징을 기반으로 하여 치료적 개입을 결정하는 단계를 포함하는, 결정 방법. - 제57항에 있어서, cfNA의 특징은 염색체 이상, 단일 뉴클레오티드 다형성, 유전자 돌연변이, 점 돌연변이, 결실, 삽입, 메틸화 패턴 및 복제수 변이로 구성되는 그룹으로부터 선택되는 것인, 방법.
- 대상을 모니터링하는 방법으로서,
a. 제1항의 방법에 의해 대상으로부터 cfNA의 분석 가능한 풀을 제공하는 단계;
b. cfNA 분자의 분석 가능한 풀을 분석하여 cfNA 분자의 분석 가능한 풀에서 질환과 관련되는 cfNA의 특징을 결정하는 단계; 및
c. 결정된 특징을 기반으로 하여 대상이 처치를 필요로 하는 지를 결정하는 단계를 포함하는, 모니터링 방법. - 제59항에 있어서, cfNA의 특징은 염색체 이상, 단일 뉴클레오티드 다형성, 유전자 돌연변이, 점 돌연변이, 결실, 삽입, 메틸화 패턴 및 복제수 변이로 구성되는 그룹으로부터 선택되는 것인, 방법.
- 질환을 진단받고, 그 질환의 치료를 위한 치료적 양생(therapeutic regimen)에 따라 치료 중인 대상의 치료를 모니터링하는 방법으로서,
a. 제1항의 방법에 의해 대상으로부터 cfNA의 분석 가능한 풀을 제공하는 단계;
b. cfNA의 분석 가능한 풀을 분석하여 cfNA의 분석 가능한 풀에서 질환과 관련되는 cfNA의 특징을 결정하는 단계;
c. 결정된 특징이 치료적 양생과 양립 가능한 지를 결정하는 단계;
d. 결정된 특징이, 치료적 양생이 금지되거나 권고되지 않는 것임을 나타낼 경우 치료적 양생을 변경하거나, 결정된 특징이, 치료적 양생이 계속적으로 권고되는 것임을 나타낼 경우 치료적 양생을 계속하는 단계; 및
e. 선택적으로, 단계 a) 내지 d)를 요망되는 시간 간격으로 반복하는 단계를 포함하는, 모니터링 방법. - 제61항에 있어서, cfNA의 특징은 염색체 이상, 단일 뉴클레오티드 다형성, 유전자 돌연변이, 점 돌연변이, 결실, 삽입, 메틸화 패턴 및 복제수 변이로 구성되는 그룹으로부터 선택되는 것인, 모니터링 방법.
- 샘플 중 세포-유리 핵산(cfNA)의 원래 농도를 결정하는 방법으로서,
a. 제1항의 방법에 의해 증폭 가능한 cfNA 풀을 제공하는 단계;
b. 증폭 가능한 cfNA 풀을 증폭시켜 cfNA 분자의 증폭된 풀을 생산하는 단계;
c. cfNA의 증폭된 풀에서 cfNA의 농도를 결정하는 단계; 및
d. 결정된 cfNA의 농도를 표준 곡선과 비교하여 샘플 중 cfNA의 원래 농도를 결정하는 단계를 포함하는, 결정 방법.
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| GB201611469D0 (en) | 2016-06-30 | 2016-08-17 | Lumiradx Tech Ltd | Improvements in or relating to nucleic acid amplification processes |
| CN116445593A (zh) | 2016-08-10 | 2023-07-18 | 格里尔公司 | 测定一生物样品的一甲基化图谱的方法 |
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| CA3095030A1 (en) | 2018-03-30 | 2019-10-03 | Juno Diagnostics, Inc. | Deep learning-based methods, devices, and systems for prenatal testing |
| DE202019005627U1 (de) | 2018-04-02 | 2021-05-31 | Grail, Inc. | Methylierungsmarker und gezielte Methylierungssondenpanels |
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| JP7189401B2 (ja) | 2022-12-14 |
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