KR102481869B1 - 단일 세포를 캡슐화하는 방법, 캡슐화된 세포 및 이의 용도 - Google Patents
단일 세포를 캡슐화하는 방법, 캡슐화된 세포 및 이의 용도 Download PDFInfo
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- KR102481869B1 KR102481869B1 KR1020217040701A KR20217040701A KR102481869B1 KR 102481869 B1 KR102481869 B1 KR 102481869B1 KR 1020217040701 A KR1020217040701 A KR 1020217040701A KR 20217040701 A KR20217040701 A KR 20217040701A KR 102481869 B1 KR102481869 B1 KR 102481869B1
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Abstract
Description
도 2는 수성 완충액의 존재 하에서 크기가 확장될 수 있는 중공 비드의 실시형태의 마이크로그래프 이미지 및 개략도를 도시한다. 마이크로그래프 이미지는 (왼쪽에서 오른쪽으로) 탈수된 비드; 초기에 수상과 접촉된 비드; 부풀어 오르기 시작하는 비드; 그리고 완전히 부푼 비드를 나타낸다.
도 3은 온도 또는 화학적 수단에 의해 비드 기공도를 증가시키기 위한 실시형태를 나타내는 개략도이다. 도 3에 도시된 바와 같이 비드 기공성의 증가는 비드 내외부로의 입자의 흐름을 증가시킬 수 있으며, 기공성을 제어하는 것은 비드 내외로 흐르는 입자 (입자 크기 포함)의 제어를 제공한다.
도 4는 단일 세포 위에 중합체의 단량체 단위를 침착시킴(depositing)으로써 디바이스-프리 세포 캡슐화 방법의 실시형태를 예시하는 개략도이다.
도 5는 디바이스-프리 방법에 의해 형성된 중합체 내 캡슐화된 세포의 실시형태를 예시하는 개략도이며, 여기서 중합체 쉘은 특이적 결합 분자와의 특정한 상호 작용을 통해 세포에 부착된다.
도 6은 비드 내에 캡슐화된 세포를 나타내며, 형광 염료로 염색된 비드의 마이크로그래프 이미지를 보여준다. 상기 마이크로그래프 이미지는 (왼쪽에서 오른쪽으로) 유리 PEG-말레이미드를 표적으로 하는 티올-특이적 형광단으로 염색; 유리 -SH기를 표적으로 하는 텍사스 레드 형광단으로 염색; Hoechst 염색으로 염색한 핵을 나타낸다.
도 7은 세포를 캡슐화하는 중공 비드에 대해 다중 공동-분석을 수행하는 방법의 실시예를 나타내는 개략도이다. 도 7은 ATAC-seq 단편을 생성하기 위해 태깅, cDNA 합성을 개시하기 위한 역전사 및 인덱스 라이브러리를 생성하기 위한 PCR 반응을 수행하는 실시형태를 나타낸다.
도 8은 세포를 캡슐화하는 중공 비드에 대해 다중 공동-분석을 수행하는 방법의 실시예를 나타내는 개략도이다. 도 8은 ATAC-seq 단편을 생성하기 위한 태깅, cDNA 합성을 개시하기 위한 역전사 및 전장 RNA 시퀀싱을 위한 무작위 연장을 통한 PCR 반응으로 인덱스 라이브러리를 생성하는 실시형태를 나타낸다.
도 9는 세포를 캡슐화하는 중공 비드에 대해 다중의 공동-분석을 수행하는 방법의 실시예를 도시한 개략도이다. 도 9는 2 라운드의 인덱스 스플릿 라이게이션 및 1 라운드의 인덱스 PCR을 사용하는 3-계층 조합 인덱스 방법(three-tier combinatorial indexing approach)을 나타낸다.
도 10은 세포를 캡슐화하는 중공 비드에 대해 다중 공동-분석을 수행하는 방법의 실시예를 나타내는 개략도이다. 도 10은 인덱싱된 트랜스포솜과의 조합 인덱싱에 대한 다중 공동-분석을 보여준다.
도 11은 세포를 캡슐화하는 중공 비드에 대해 다중 공동-분석을 수행하는 방법의 실시예를 나타내는 개략도이다. 도 11은 단일 세포 전체 게놈 증폭에 대한 다중 공동-분석을 나타낸다.
도 12는 세포를 캡슐화하는 중공 비드로 전체 게놈 라이브러리를 제조하는 방법의 실시형태를 예시하는 흐름도이다.
인접성 입자타입 |
가교제 | 가교 시간 | 크기 동종(homogeneity) | 비드 경화(curing) |
느린 가교제 | PEG-에폭사이드+Peg아민 | > 12 시간 | 좋음 | 완전 |
PEG-다이티올+PEG-아크릴레이트 | 4 시간 | 평균 | 불완전 | |
순간 가교제 | 다이티올 오일+PEG-말레이미드 | 순간적 | 좋음 | 완전 |
PEG 에폭사이드+아민 오일 | 순간적 | 좋음 | 완전 |
Claims (17)
- 단일 세포를 캡슐화하는 중공 비드로서,
PEG-말레이미드과 다이티올 오일, PEG-에폭사이드와 아민 오일 또는 PEG-에폭사이드와 PEG-아민을 포함하는 중합체 쉘 및 상기 중합체 쉘 내에 배치된 단일 세포를 포함하되,
상기 중합체 쉘은 상기 단일 세포를 유지하면서 상기 중합체 쉘을 통한 시약의 확산을 허용하는 기공을 포함하는, 중공 비드.
- 제1항에 있어서, 상기 중합체 쉘의 내부가 수성 환경을 포함하는, 중공 비드.
- 제1항에 있어서, 상기 중합체 쉘 내에 배치된 상기 단일 세포는 상기 중합체 쉘과 상호 작용이 없고/없거나 상기 중합체 쉘과 접촉하지 않는, 중공 비드.
- 제1항에 있어서, 상기 중공 비드는 직경이 20㎛ 내지 200㎛인, 중공 비드.
- 제1항에 있어서,
하기 a) 내지 b) 중 적어도 하나를 포함하는, 중공비드:
a) 상기 단일 세포가 포유동물 세포임,
b) 상기 시약이 효소, 케미칼 및 50 염기쌍 미만의 크기를 갖는 프라이머.
- 제5항에 있어서,
상기 시약은 리소자임, 단백질 분해효소 K, 랜덤 헥사머, 폴리머라제, Φ29 DNA 폴리머라제, Taq 폴리머라제, Bsu 폴리머라제, 트랜스포사제, Tn5 트랜스포사제, P5 어댑터 서열, P7 어댑터 서열, 리가아제, 촉매 효소(caltalyzing enzyme), 데옥시뉴클레오티드 트라이포스페이트, 버퍼 또는 2가 양이온을 포함하는, 중공비드.
- 중공 비드 내에 단일 세포를 캡슐화하는 방법으로서,
스페이서 오일 내에서 단일 세포를 중합체와 혼합하여 혼합물 (a)를 형성하는 단계; 및
혼합물 (a)를 가교 오일과 혼합하여 상기 단일 세포를 캡슐화하는 중합체 쉘을 형성하는 단계
를 포함하되,
상기 중합체 쉘은 상기 단일 세포를 유지하면서 상기 중합체 쉘을 통해 시약의 확산을 허용하는 기공을 포함하고, 상기 중합체 쉘은 PEG-말레이미드과 다이티올 오일, PEG-에폭사이드와 아민 오일 또는 PEG-에폭사이드와 PEG-아민을 포함하는, 중공 비드 내에 단일 세포를 캡슐화하는, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 제7항에 있어서, 상기 중공 비드의 직경이 20㎛ 내지 200㎛인, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 제7항에 있어서,
i) 상기 스페이서 오일이 미네랄 오일 또는 플루오로카본 오일을 포함하고,
ii) 상기 가교 오일이 오일에 용해된 다이티올 또는 아민을 포함하고,
iii) 상기 단일 세포가 포유동물 세포이고,
iv) 상기 시약이 효소, 화학물질(chemical) 및 50 염기쌍 미만의 크기를 갖는 프라이머를 포함하고,
v) 상기 시약이 리소자임, 단백질 분해효소 K, 랜덤 헥사머, 폴리머라제, Φ29 DNA 폴리머라제, Taq 폴리머라제, Bsu 폴리머라제, 트랜스포사제, Tn5 트랜스포사제, P5 어댑터 서열, P7 어댑터 서열, 리가아제, 촉매화 효소, 데옥시뉴클레오티드 트라이포스페이트, 버퍼, 세제또는 2가 양이온을 포함하는, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 제7항에 있어서, 상기 혼합은 상기 단일 세포, 상기 중합체, 상기 스페이서 오일 및 상기 가교 오일을 액적 발생기에 투입하는 것을 포함하는, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 제10항에 있어서, 상기 액적 발생기는 미세유체 칩(microfluidic chip)인, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 제7항에 있어서, 상기 단일 세포는 고정제와의 접촉에 의해 혼합 전에 고정되는, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 제12항에 있어서, 상기 고정제가 메탄올 또는 에탄올과 같은 알코올 또는 파라-포름알데하이드와 같은 알데하이드를 포함하는, 중공 비드 내에 단일 세포를 캡슐화하는 방법.
- 중공 비드 내에 캡슐화된 단일 세포에 대해 다중의 순차적 공동-분석(multiple sequential co-assay)을 수행하는 방법으로서,
제1항 내지 제5항 중 어느 한 항의 단일 세포를 캡슐화하는 중공 비드를 수득하는 단계; 및
상기 단일 세포를 시약과 순차적으로 접촉시켜 다중의 순차적 공동-분석을 수행하는 단계
를 포함하는, 중공 비드 내에 캡슐화된 단일 세포에 대해 다중의 순차적 공동-분석을 수행하는 방법.
- 제14항에 있어서, 상기 다중의 순차적 공동-분석은 용해, DNA 분석, RNA 분석, 단백질 분석, 태깅(tagmentation), 핵산 증폭, 핵산 시퀀싱, DNA 라이브러리 제조, 시퀀싱을 이용한 트랜스포사제 접근성 크로마틱 분석(transposase accessible chromatic using sequencing: ATAC-seq), 연속성 보존 전치 시퀀싱(contiguity-preserving transposition sequencing: CPT-seq), 단일 세포 조합 인덱스 시퀀싱(single cell combinatorial indexed sequencing: SCI-seq), 또는 단일 세포 게놈 증폭, 또는 순차적으로 수행되는 이들의 임의의 조합을 포함하는, 중공 비드 내에 캡슐화된 단일 세포에 대해 다중의 순차적 공동-분석을 수행하는 방법.
- 제14항에 있어서, 상기 단일 세포를 캡슐화하는 중공 비드가 고체 지지체 상에 시딩되는, 중공 비드 내에 캡슐화된 단일 세포에 대해 다중의 순차적 공동-분석을 수행하는 방법.
- 제16항에 있어서, 상기 고체 지지체는 에칭된 표면, 웰, 플로우-셀 장치, 미세유체 채널, 비드 또는 칼럼인, 중공 비드 내에 캡슐화된 단일 세포에 대해 다중의 순차적 공동-분석을 수행하는 방법.
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