KR20230169414A - 세포 미소구획 및 제조 방법 - Google Patents
세포 미소구획 및 제조 방법 Download PDFInfo
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Abstract
Description
Claims (15)
- 세포 미소구획으로서,
세포 미소구획은 중심 내강 및 하기 연속적으로 배열된 동심적인 층: 인간 다능성 세포의 적어도 하나의 층, 세포외 매트릭스 층, 및 외부 히드로겔 층
을 포함하는 낭포이고,
내강은 중공이면서, 상기 세포외 매트릭스 상에 또는 내에 축적된 인간 다능성 세포에 의해 둘러싸여 있고,
인간 다능성 세포는 양극화되고,
세포 밀도는 미소구획당 1 내지 수 천개 세포이고, 세포 미소구획은 배양 5일 후에 중심 내강을 유지하는 것인, 세포 미소구획. - 제 1 항에 있어서, 상기 미소구획은 밀폐된 것인 세포 미소구획.
- 제 1 항에 있어서, 외부 층은 알기네이트를 포함하는 것인 세포 미소구획.
- 제 1 항에 있어서, 상기 미소구획은 구형 또는 장방형 형상을 갖는 것인 세포 미소구획.
- 제 1 항에 있어서, 상기 미소구획은 10 ㎛ 내지 1 ㎜ 의 직경 또는 최소 치수를 갖는 것인 세포 미소구획.
- 세포 미소구획의 제조 방법으로서, 세포 미소구획은 낭포이고, 방법은 하기를 포함하는 세포 미소구획의 제조 방법:
(a) 인간 다능성 줄기 세포를 RHO/ROCK 경로 억제제를 함유하는 배양 배지에서 인큐베이션시키는 단계;
(b) 단계 (a)로부터의 다능성 줄기 세포를 세포외 매트릭스와 혼합시키는 단계;
(c) 단계 (b)로부터의 혼합물을 히드로겔 층에 캡슐화시키는 단계;
(d) 단계 (c)에서 수득된 캡슐을 RHO/ROCK 경로 억제제를 함유하는 배양 배지에서 배양시키는 단계;
(e) RHO/ROCK 경로 억제제를 제거하기 위해서 단계 (d)로부터의 캡슐을 세정하는 단계;
(f) 중심 내강 및 하기 연속적으로 배열된 동심적인 층: 인간 다능성 세포의 적어도 하나의 층, 세포외 매트릭스 층, 및 외부 히드로겔 층을 포함하는 세포 미소구획을 형성하기 위해, 단계 (e)로부터의 캡슐을 5일 내지 20일 동안 배양시키는 단계로서, 내강은 중공이면서, 상기 세포외 매트릭스 상에 또는 내에 축적된 인간 다능성 세포에 의해 형성된 것이고, 임의로는 수득된 세포 미소구획을 회수하는 단계로서, 세포 미소구획은 배양 5일 후에 중심 내강을 유지하는 것인 단계. - 제 6 항에 있어서, 단계 (b) 이전에 단계 (a)로부터의 다능성 줄기 세포를 해리시키는 중간 단계를 포함하는 것인 세포 미소구획의 제조 방법.
- 제 7 항에 있어서, 다능성 줄기 세포가 효소-무함유 시약에 의해서 해리되는 것인 세포 미소구획의 제조 방법.
- 하기를 포함하는, 제 1 항에 따른 세포 미소구획의 제조 방법:
(a) 인간 분화 세포를 세포외 매트릭스 및 세포 리프로그래밍제와 혼합시키는 단계;
(b) 단계 (a)로부터의 혼합물을 히드로겔 층에 캡슐화시키는 단계;
(c) 중심 내강 및 하기 연속적으로 배열된 동심적인 층: 인간 다능성 세포의 적어도 하나의 층, 세포외 매트릭스 층, 및 외부 히드로겔 층을 포함하는 세포 미소구획을 형성하기 위해, 단계 (b)로부터의 캡슐을 10일 내지 40일 동안 배양시키는 단계로서, 여기서 내강은 중공이면서, 상기 세포외 매트릭스 상에 또는 내에 축적된 인간 다능성 세포에 의해 형성된 것이고, 임의로는 수득된 세포 미소구획을 회수하는 단계로서, 여기서 세포 미소구획은 배양 5일 후에 중심 내강을 유지하는 것인 단계. - 제 9 항에 있어서, 단계 (b)로부터의 각각의 캡슐은 1 내지 500개의 분화된 세포를 함유하는 것인 세포 미소구획의 제조 방법.
- 제 6 항에 있어서, 상기 방법은 세포 미소구획을 냉동시키는 후속 단계를 포함하는 것인 세포 미소구획의 제조 방법.
- 제 7 항에 있어서, 상기 방법은 세포 미소구획을 냉동시키는 후속 단계를 포함하는 것인 세포 미소구획의 제조 방법.
- 제 8 항에 있어서, 상기 방법은 세포 미소구획을 냉동시키는 후속 단계를 포함하는 것인 세포 미소구획의 제조 방법.
- 제 9 항에 있어서, 상기 방법은 세포 미소구획을 냉동시키는 후속 단계를 포함하는 것인 세포 미소구획의 제조 방법.
- 제 10 항에 있어서, 상기 방법은 세포 미소구획을 냉동시키는 후속 단계를 포함하는 것인 세포 미소구획의 제조 방법.
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