KR101497728B1 - 고농도의 생물학적 활성 분자 함유 조성물 및 그 제조 방법 - Google Patents
고농도의 생물학적 활성 분자 함유 조성물 및 그 제조 방법 Download PDFInfo
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- C12N15/09—Recombinant DNA-technology
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- C12N15/1017—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by filtration, e.g. using filters, frits, membranes
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Abstract
Description
Claims (31)
- 다음 단계들을 포함하는, 박테리아 세포로부터 복제수 300 이하의 저 복제수(low copy number) 플라스미드의 90 중량% 이상 순도의 샘플을 대규모로 제조하는 방법:a) 복수의 박테리아 세포의 세포 현탁액을 용해 용액(lysis solution)과 접촉시켜 용해물 용액(lysate solution)을 제조하는 단계;b) 상기 용해물 용액을 중화 용액으로 중화하여, 중화된 용해물 용액과 잔여물(debris)을 포함하는 분산액을 제조하는 단계;c) 하나 이상의 필터로 상기 분산액을 여과하는 단계;d) 상기 중화된 용해물 용액으로 이온 교환 분리를 실시하여 이온 교환 용출물을 제조하는 단계; 및e) 상기 이온 교환 용출물에 대해 소수성 상호작용 분리를 실시하여 소수성 상호작용 용액을 제조하는 단계;이때 단계 a)는 고전단력의 인라인 (in-line) 믹서 중에서 상기 세포 현탁액을 용해 용액과 혼합함을 포함하고,단계 b)는 버블 믹서 중에서 상기 중화 용액과 상기 용해물 용액을 혼합함을 포함하며,단계 e)는 소수성 상호작용 컬럼 또는 소수성 상호작용 막을 사용하여 소수성 상호작용 분리를 실시하여 소수성 상호작용 용액을 제조함을 포함한다.
- 제1항에 있어서, 하기의 단계를 추가로 포함하는 방법:f) 상기 소수성 상호작용 용액의 한외여과에 의해 저 복제수 플라스미드의 용액을 제조하는 단계.
- 제1항 또는 제2항에 있어서, 하기의 단계를 추가로 포함하는 방법:g) 상기 저 복제수 플라스미드 용액의 멸균 여과에 의해 저 복제수 플라스미드의 멸균 용액을 제조하는 단계.
- 제1항 또는 제2항에 있어서, 잔여물로부터 중화된 용해물 용액을 분리하기 위한 시간 동안 분산액을 홀딩하고, 하나 이상의 필터로 중화된 용해물 용액을 여과함을 추가로 포함하는 방법.
- 제1항 또는 제2항에 있어서, 상기 제조 단계가, 1 분 내지 20 분의 기간, 또는 4 분 내지 8 분의 기간, 또는 5 분에 걸쳐 믹서 내에서 상기 용해 용액과 세포 현탁액을 접촉시킴을 포함하는 것인 방법.
- 제1항 또는 제2항에 있어서, 상기 이온 교환이 음이온 교환 막인 방법.
- 제1항 또는 제2항에 있어서, 단계 e)가, 부틸 소수성 상호작용 크로마토그래피 용액 용출물인 소수성 상호작용 용액을 생성하기 위해 부틸 소수성 상호작용 크로마토그래피를 포함하는 소수성 상호작용 분리를 실시하는 것을 포함하는 방법.
- 제1항 또는 제2항에 있어서, 상기 방법이 한 단계로부터 후속 단계로 연속으로 전이(또는 이행)시킴을 포함하고, 용기 내에 용해물을 수합함에 의해 분산액 중 중화된 용해물 용액을 잔여물로부터 분리하고, 분산액을 제 1 필터를 통해 통과시켜 초기의 미정제 중화된 용해물 용액을 생성함을 포함하는 방법.
- 제8항에 있어서, 1차의 상기 미정제 중화된 용해물 용액을 제 2 필터를 통해 통과시켜 후속의 미정제 중화된 용해물 용액을 생성함을 포함하는 방법.
- 다음 단계들을 포함하는, 박테리아 세포로부터 복제수 300 이하의 저 복제수(low copy number) 플라스미드의 90 중량% 이상 순도의 샘플을 대규모로 제조하는 방법:세포 분산액 중의 박테리아 세포를 용해 용액과 접촉시켜 용해물 용액을 형성하는 단계;버블 컬럼 믹서로 중화 용액을 상기 용해물 용액 내로 혼합하여 상기 용해물 용액을 중화하여, 중화된 혼합물을 형성하는 단계;제 1 필터 및 제 2 필터를 통해 상기 중화된 혼합물을 여과하여 여과된 용액을 형성하는 단계;이온 교환 컬럼을 통해 상기 여과된 용액을 통과시켜 이온 교환 용액을 형성하는 단계;소수성 상호작용 컬럼 또는 소수성 상호작용 막을 통해 상기 이온 교환 용액을 통과시켜 소수성 상호작용 용액을 형성하는 단계; 및상기 소수성 상호작용 용액을 한외여과하여 90 중량% 이상 순도의 저 복제수 플라스미드 샘플을 형성하는 단계;이때 접촉 단계로부터 여과된 용액을 통과시키는 단계까지 이르는 대규모 방법에서의 한 단계로부터 후속 단계로의 각 전이는 연속으로 일어난다.
- 제1항 또는 제2항의 대규모 제조 방법에 의해 생산된, 복제수 300 이하의 저 복제수(low copy number) DNA 플라스미드를 포함하는 조성물로서,상기 DNA 플라스미드의 양은 조성물 중 10 g 이상이고,상기 DNA 플라스미드의 순도는 99 중량% 초과이며,상기 DNA 플라스미드의 농도는 전체 조성물 중 5 mg/mL 이상이고,상기 DNA 플라스미드는 80 중량% 초과의 수퍼코일된 플라스미드를 포함하며,상기 조성물은 DNA 플라스미드 1 mg 당 10 EU 이하의 내독소(endotoxin)를 포함하고,상기 조성물은 1.0 중량% 이하의 RNA를 포함하며,상기 조성물은 1.0 중량% 이하의 단백질을 포함하고,상기 조성물은 1.0 중량% 이하의 게놈 DNA를 포함하는 것인 조성물.
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