KR101907534B1 - 3차원 스페로이드 배양을 통한 기능 강화 선조직 유래 선줄기세포의 분리 방법 - Google Patents
3차원 스페로이드 배양을 통한 기능 강화 선조직 유래 선줄기세포의 분리 방법 Download PDFInfo
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Abstract
Description
도 2는 타액선 조직에서 분리된 선줄기세포를 마이크로패턴화 된 나노섬유 스케폴드에서 배양하였을 때 3차원 스페로이드 형성하는 것을 전자현미경(SEM)을 통해 확인한 결과를 나타낸다. 마이크로패턴화 된 나노섬유 스케폴드의 사이즈에 따라 스페로이드의 형성을 현미경적 사진 및 세포의 증식을 Live/Dead로 확인한 결과를 나타낸다. 타액선 조직에서 분리된 선줄기세포와 일차상피세포의 차이를 현미경적 사진으로 확인 및 특성 분석을 위한 PCR 신호 결과를 나타낸다.
도 3은 타액선 조직에서 분리된 선줄기세포와 기존 배양방식으로 분리한 선줄기세포 및 일차상피세포의 차이를 PCR 신호 및 웨스턴 블롯 분석 결과를 나타낸다.
도 4는 타액선 조직에서 기존의 방식으로 분리된 선줄기세포와 3차원 스페로이드 배양 방식으로 분리된 선줄기세포의 줄기세포 특성 비교 검증을 위한 PCR 신호 결과를 나타낸다.
도 5는 3차원 스페로이드 배양을 통해 분리한 선줄기세포의 줄기세포 기능 강화 검증을 위한 자가증식능, 분화능에 관한 염색 결과와 FACS 분석 결과를 나타낸다.
도 6은 선줄기세포의 3차원 스페로이드 배양을 통해 형성된 선줄기세포 스페로이드의 현미경적 사진 확인 및 염색 결과를 나타낸다.
도 7은 3차원 스페로이드 배양을 통해 형성된 선줄기세포 스페로이드의 줄기세포 특성 분석을 위한 염색과 FACS 분석, PCR 신호 및 웨스턴 블롯 분석 결과를 나타낸다.
도 8은 3차원 배양을 통해 형성된 선줄기세포 스페로이드의 기능 강화 분석을 위한 염색과 FACS 분석, PCR 신호 및 웨스턴 블롯 분석 결과를 나타낸다.
도 9는 3차원 배양을 통해 형성된 선줄기세포 스페로이드의 줄기세포 특성 분석을 위한 Microarray 분석과 PCR 신호 및 웨스턴 블롯 분석 결과를 나타낸다.
도 10은 3차원 배양을 통해 형성된 선줄기세포 스페로이드의 기능 강화 증명을 위한 분화 유도 분석 결과를 나타낸다.
α-Amylase (AMY1A) | F | CATTGACATTGGCGTAGCAG |
R | CAGAATGTCAAGATGGATGC | |
Aquaporin 5 (AQP5) | F | CTCTGCATCTTCTCCTCCACG |
R | TCCTCTCTATGATCTTCCCAG | |
Integrin β1 (CD29) | F | GAAGGGTTGCCCTCCAGA |
R | GCTTGAGCTTCTCTGCTGTT | |
CD90 (Thy-1) | F | GACAGCCTGAGAGGGTCTTG |
R | CCCAGTGAAGATGCAGGTTT | |
Leucine-rich repeat containing G protein-coupled receptor 5 (LGR5) | F | AGGATCTGGTGAGCCTGAGAA |
R | CATAAGTGATGCTGGAGCTGGTAA | |
POU5F1(OCT4) | F | CTTGATCCTCGGACCGGCTA |
R | GGTTGCCTCTCACTCGGTTCT | |
Nanog | F | TGCAGCACAAGAAAGACCAC |
R | GCCACATGAAAGGTCTCCAT |
Claims (18)
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- (1) 분리된 선줄기세포 또는 선조직 혼합 세포주를 바닥은 나노섬유 기반의 마이크로 영역, 벽은 세포의 부착이 일어나지 않는 하이드로젤 기반의 마이크로 영역으로 정사각면체 형태의 패터닝으로 구성된 마이크로패턴화 된 나노섬유 스케폴드에서 배양하는 단계;
(2) 상기 배양물로부터 3차원 스페로이드를 형성하는 단계; 및
(3) 상기 형성된 3차원 스페로이드를 1 내지 5회 계대배양하는 단계를 포함하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법. - 삭제
- 제8항에 있어서, 상기 마이크로패턴화 된 나노섬유 스케폴드는 100 내지 500 ㎛의 정사각면체 형태의 3차원 배양용 스캐폴드인 것을 특징으로 하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법.
- 제10항에 있어서, 상기 마이크로패턴화 된 나노섬유 스케폴드는 200 ㎛×200 ㎛의 정사각형을 바닥으로 하고, 높이 150 내지 300 ㎛의 벽으로 이루어진 마이크로웰 형태인 것을 특징으로 하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법.
- 제8항에 있어서, 상기 3차원 스페로이드를 형성하는 단계는 상기 마이크로패턴화 된 나노섬유 스케폴드에서 3 내지 7일 동안 배양하는 것을 특징으로 하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법.
- 제8항에 있어서, 상기 선줄기세포는 타액선줄기세포 또는 타액선상피전구세포인 것을 특징으로 하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법.
- 제8항에 있어서, 상기 기능 강화된 선줄기세포는 줄기세포성 마커인 Lgr5, CD90, CD29, OCT4, Nanog 및 SOX2의 발현이 증가된 것을 특징으로 하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법.
- 제8항에 있어서, 상기 기능 강화된 선줄기세포는 자가복제능 또는 연골세포, 지방세포, 골세포, 선세포 또는 간세포 분화능이 강화된 것을 특징으로 하는 3차원 스페로이드 배양을 통한 선줄기세포 기능 강화 방법.
- 제8항, 제10항 내지 제15항 중 어느 한 항의 방법에 따라 기능 강화된 선줄기세포 또는 이들의 배양액을 유효성분으로 포함하는 선조직 손상 치료용 세포치료제.
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