KR102106805B1 - 세포 스페로이드 형성용 구조체, 이의 제조방법 및 이를 이용한 세포 스페로이드 형성방법 - Google Patents
세포 스페로이드 형성용 구조체, 이의 제조방법 및 이를 이용한 세포 스페로이드 형성방법 Download PDFInfo
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Abstract
본 발명의 일 측면에서 제공하는 세포 스페로이드 형성용 구조체 제조방법은 복잡한 광식각공정과 특수한 장비 없이 제조가 가능하며, 이렇게 제조되는 세포 스페로이드 형성용 구조체는 홈(cavity)의 부피와 곡률이 조절됨에 따라 세포 스페로이드를 최적의 효율로 형성할 수 있는 효과가 있다.
Description
도 2는 본 발명의 일 측면에서 제공하는 세포 스페로이드(Spheroid) 형성용 구조체를 사용하여 세포 스페로이드를 형성하는 원리를 나타내는 이미지이다.
도 3은 세포 스페로이드 형성용 구조체의 홈(cavity) 표면에 사용하는 BSA의 농도에 따라, 스페로이드 형성 효율을 분석한 결과를 나타내는 그래프이다.
도 4는 다양한 크기와 곡률의 홈 내부에 단일 스페로이드가 형성된 홈의 수를 측정하여 스페로이드 형성의 효율성을 평가한 결과를 나타내는 이미지이다.
도 5는 5μL 부피 70% 농도 에탄올 방울로 형성되는 홈을 포함하는 구조체를 사용하여, 파종된 세포 수를 조절하고, 3일 동안 스페로이드 형성의 효율성을 평가한 결과를 나타내는 그래프이다. 도 5a는 스페로이드 형성 효율을, 도 5b는 형성된 스페로이드의 직경을 나타낸다.
도 6은 홈(cavity) 내에서 형성된 단일 스페로이드를 관찰한 이미지이다. 도 6a는 5일 동안 스페로이드를 관찰한 이미지를, 도 6b는 생존/죽음 염색 분석(live/dead staining assay) 결과 이미지를, 도 6c는 다른 두 종류의 세포를 이용하여 다세포 스페로이드의 형성을 나타내는 이미지이다.
도 7은 홈(cavity) 내에서 형성된 단일 스페로이드를 공초점 현미경(confocal microscope)을 이용하여 단층 촬영한 이미지이다.
Claims (13)
- 폴리다이메틸실록산 (PDMS: Polydimethylsiloxane)을 포함하는 제1 용액을 준비하는 단계;
상기 제1 용액에 제2 용액 방울을 투입하여, 상기 제1 용액에 투입된 제2 용액 방울이 상기 제1 용액의 수면에 접하여 배치되는 단계; 및
제1 용액 내 폴리다이메틸실록산의 경화를 유도하는 단계; 를 포함하는, 세포 스페로이드(Spheroid) 형성용 구조체 제조방법에 있어서,
상기 제2 용액 방울은,
5μL부피 70(v/v)%농도 에탄올 수용액 방울, 또는 10μL부피 물 방울인 것을 특징으로 하는 세포 스페로이드 형성용 구조체 제조방법.
- 삭제
- 삭제
- 삭제
- 제1항에 있어서,
상기 제1 용액의 밀도가 상기 제2 용액의 밀도보다 크거나 같은 것을 특징으로 하는 세포 스페로이드 형성용 구조체 제조방법.
- 삭제
- 폴리다이메틸실록산 (PDMS: Polydimethylsiloxane)을 포함하는 기지체; 및 상기 기지체 표면에 형성된 홈(cavity)을 포함하고, 상기 홈은 구형 또는 타원형의 일부이며, 제1항의 제조방법으로 제조되는 세포 스페로이드 형성용 구조체의 홈 표면에 세포 부착 방지제를 처리하는 단계; 및
상기 홈 표면에 세포를 파종(seeding)하는 단계; 를 포함하는, 세포 스페로이드 형성방법에 있어서,
상기 홈 표면에 세포를 파종하는 단계에서,
홈 당 세포 수는 250 내지 2,500개 범위인 것을 특징으로 하는 세포 스페로이드 형성방법.
- 삭제
- 제7항에 있어서,
상기 세포 부착 방지제는 소혈청알부민(Bovine serum albumin, BSA), 아가로스(agarose), 또는 폴리-HEMA(poly(-2-hydroxyethyl methacrylate)) 용액인 것을 특징으로 하는 세포 스페로이드 형성방법.
- 제7항에 있어서,
상기 홈 표면에 세포를 파종하기 이전에, 홈 표면을 세척하는 단계를 더 포함하는 것을 특징으로 하는 세포 스페로이드 형성방법.
- 제10항에 있어서,
상기 홈 표면의 세척은 인산완충식염수(phosphate buffered saline, PBS)로 수행하는 것을 특징으로 하는 세포 스페로이드 형성방법.
- 제7항에 있어서,
상기 홈 표면에 세포를 파종하는 단계에서,
홈 당 세포 수는 500 내지 2,500개인 것을 특징으로 하는 세포 스페로이드 형성방법.
- 제7항에 있어서,
상기 세포 스페로이드 형성방법으로 제조되는 스페로이드의 평균 직경은 100 내지 500 ㎛인 것을 특징으로 하는 세포 스페로이드 형성방법.
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