KR20190039061A - 배아줄기세포로부터 소장 오가노이드의 제조방법 - Google Patents
배아줄기세포로부터 소장 오가노이드의 제조방법 Download PDFInfo
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Abstract
Description
도 2는, 마우스 배아줄기세포로부터 만든 구체의 배양체를 3차원으로 배양하는 과정 및 액티빈 A(Activin A) 처리 유무에 따른 내배엽 특이적 유전자인 Foxa2의 mRNA 수준을 비교하기 위해 RT-PCR을 실시한 결과이다.
도 3a 내지 도 3c는, 마우스 배아줄기세포에서 분화시킨 내배엽에서 Cdx2의 발현을 유도한 후 발현수준을 측정한 결과로서, 도 3a 및 도 3b는 상기 내배엽에 윈트/베타-카테닌 신호전달 경로를 활성화시키는 GSK-3β 억제제인 BIO 및 노치 신호전달 경로를 억제하는 감마-세크레타제(γ-secretase) 억제제인 DAPT를 함께 처리한 후 RT-PCR 및 웨스턴 블롯을 실시하여 Cdx2 mRNA(도 3a) 및 단백질(도 3b) 수준을 측정한 결과이고, 도 3c는 면역조직화학염색법을 실시하여 상기 BIO 및 DAPT의 처리 농도에 따른 Cdx2 단백질의 발현정도를 비교한 결과이다.
도 4a 내지 도 4c는, 마우스 배아줄기세포로부터 분화시킨 소장 오가노이드가 실질적으로 소장의 특성을 가지고 있는지 검증한 결과로서, 도 4a는 장선와로부터 제조한 소장 오가노이드(crypt derived-organoid)와 구조적 특성을 비교한 결과이고, 도 4b는 RT-PCR을 통해 소장 특이적 유전자인 소장 특이적 줄기세포 마커(Msi1 및 Lgr5), 분화마커(Lysozyme, Muc2, ChgA), 및 장 분비 호르몬인 Cck mRNA의 발현수준을 측정한 결과이며, 도 4c는 면역조직화학염색법을 통해 소장 특이적인 파네트 세포(Paneth cell) 및 줄기세포(stem cell)를 확인한 결과이다.
도 5는 본 발명에 따른 소장 오가노이드 제조방법의 전체적인 과정을 그림으로 도시한 것이다.
Claims (5)
- 하기의 단계를 포함하는, 마우스 배아줄기세포로부터 소장 오가노이드 제조방법:
(a) 마우스 배아줄기세포를 부착성이 낮은 물질이 처리된 플레이트에서 배양하여 3차원 구체인 배양체(Embryoid-body)를 제조하는 단계;
(b) 상기 배양체를 마트리겔 내에 포함시켜 3차원 배양하는 단계;
(c) 상기 3차원 배양된 배양체에 액티빈 A(Activin A)를 처리하고 배양하여 내배엽으로 특수화시키는 단계;
(d) 상기 내배엽에 6-브로모인디루빈-3’-옥심(6-bromoindirubin-3′-oxime; BIO) 및 N-[N-(3,5-디플루오로펜아세틸)-L-알라닐]-S-페닐글리신 t-부틸 에스터(N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester; DAPT)를 동시 처리하여 Cdx2 단백질의 발현을 유도하여 소장 계통으로 특수화시키는 단계; 및
(e) 상기 Cdx2 단백질의 발현이 유도된 소장 오가노이드를 배양하는 단계.
- 제1항에 있어서,
상기 내배엽은 Foxa2 유전자를 발현하는 것을 특징으로 하는, 제조방법
- 제1항에 있어서,
상기 단계 (a)의 배양체는 마우스 배아줄기세포를 3 내지 10일 동안 배양함으로써 제조되는 것을 특징으로 하는, 제조방법.
- 제1항에 있어서,
상기 BIO 및 DAPT는 각각 0.5 내지 10 uM 및 1 내지 20 uM의 농도로 처리되는 것을 특징으로 하는, 제조방법.
- 제1항 내지 제4항 중 어느 한 항의 제조방법에 의해 제조된, 소장 오가노이드.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158882A1 (ko) * | 2021-01-20 | 2022-07-28 | 가톨릭대학교 산학협력단 | 마이크로바이옴과 면역세포 테라그노시스 조사를 위한 장오가노이드 면역콘트롤 통합 플랫폼 |
| CN117143800A (zh) * | 2023-07-20 | 2023-12-01 | 华中科技大学同济医学院附属同济医院 | 一种具有神经系统的小鼠肠道类器官的构建方法及应用 |
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| WO2015173425A1 (en) * | 2014-05-16 | 2015-11-19 | Koninklijke Nederlandse Akademie Van Wetenschappen | Improved culture method for organoids |
| KR20160006167A (ko) * | 2013-03-14 | 2016-01-18 | 더 브리검 앤드 우먼즈 하스피털, 인크. | 상피 줄기 세포 확장 및 배양을 위한 조성물 및 방법 |
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| KR20160006167A (ko) * | 2013-03-14 | 2016-01-18 | 더 브리검 앤드 우먼즈 하스피털, 인크. | 상피 줄기 세포 확장 및 배양을 위한 조성물 및 방법 |
| WO2015173425A1 (en) * | 2014-05-16 | 2015-11-19 | Koninklijke Nederlandse Akademie Van Wetenschappen | Improved culture method for organoids |
| KR20170055497A (ko) * | 2014-09-03 | 2017-05-19 | 더 브리검 앤드 우먼즈 하스피털, 인크. | 청력 손실의 치료를 위해 내이 털세포를 생성하기 위한 조성물, 시스템, 및 방법 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022158882A1 (ko) * | 2021-01-20 | 2022-07-28 | 가톨릭대학교 산학협력단 | 마이크로바이옴과 면역세포 테라그노시스 조사를 위한 장오가노이드 면역콘트롤 통합 플랫폼 |
| CN117143800A (zh) * | 2023-07-20 | 2023-12-01 | 华中科技大学同济医学院附属同济医院 | 一种具有神经系统的小鼠肠道类器官的构建方法及应用 |
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