KR102150103B1 - 뇌 오가노이드를 기반으로 하는 허혈성 뇌질환 모델의 제조방법 및 이의 용도 - Google Patents
뇌 오가노이드를 기반으로 하는 허혈성 뇌질환 모델의 제조방법 및 이의 용도 Download PDFInfo
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Abstract
Description
도 1b는 인간 배아 줄기세포 유래 뇌 오가노이드를 활용한 허혈성 뇌졸중 모델의 제조 과정을 나타낸 모식도이다.
도 2a 및 도 2b는 인간 배아 줄기세포 및 뇌 오가노이드에서 발현하는 유전자를 정량적으로 나타낸 그래프이다.
도 3은 뇌 오가노이드에서 발현하는 신경조직을 염색한 사진이다.
도 4a 내지 도 4e는 성숙한 뉴런 세포, 증식 세포 및 뉴런 전구 세포를 나타내는 Tuj1, TH, DCX, p-Histon, PSA-NCAM에 대한 마커를 사용하여 면역조직 화학 염색 결과를 나타낸 사진이다(좌: 4배, 중: 10배, 우: 20배).
도 5a는 산소-글루코스 결핍을 0, 2, 6, 및 12시간 동안 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 5b는 산소-글루코스 결핍을 1 및 2일 동안 유도한 뇌 오가노이드와 정상 조건의 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 6a는 1% 산소-글루코스 결핍을 12시간 동안 유도하고, 24시간 동안 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 6b는 정상 산소 상태의 뇌 오가노이드 및 1% 산소-글루코스 결핍을 2시간 및 6시간 동안 유도하고, 1일 동안 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 6c는 정상 산소 상태의 뇌 오가노이드 및 1% 산소-글루코스 결핍을 12시간 및 24시간 동안 유도하고, 1일 동안 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 6d는 정상 산소 상태의 뇌 오가노이드, 1% 산소-글루코스 결핍을 2, 6 12 및 24시간 동안 유도하고, 1일 동안 재관류를 유도한뇌 오가노이드에서의 LDH의 발현 수준을 나타낸 그래프이다.
도 7a는 정상 산소 상태의 뇌 오가노이드, 1% 산소-글루코스 결핍(글루코스 공급)을 12시간 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과 및 1% 산소-글루코스 결핍 (글루코스 공급)을 12시간 유도하고 1일 동안 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 7b는 정상 산소 상태의 뇌 오가노이드, 1% 산소-글루코스 결핍(글루코스 결핍)을 12시간 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과; 및 1% 산소-글루코스 결핍(글루코스 결핍)을 12시간 유도하고 1일 동안 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 7c는 정상 산소 상태의 뇌 오가노이드, 1% 산소-글루코스 결핍을 12시간 유도한 뇌 오가노이드, 및 1% 산소-글루코스 결핍을 12시간 유도한 후, 1일 동안 재관류를 유도한 뇌 오가노이드의 배지상에서의 글루코스 결핍 유무에 따라 나타나는 LDH 발현 수준을 나타낸 그래프이다.
도 8은 정상 산소 상태의 뇌 오가노이드 및 1% 산소-글루코스 결핍을 12시간 유도하고 24시간 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 9a는 MK-801(1 및 5 μM) 및 에다라본(5 및 50 μM)을 처리하고, 5% 산소-글루코스 결핍을 12시간 유도한 뇌 오가노이드의 LDH의 발현 수준을 나타낸 그래프이다.
도 9b는 MK-801(1 및 5 μM) 및 에다라본(5 및 50 μM)를 처리한 후, 1% 산소-글루코스 결핍을 12시간 유도하고 24시간 동안 재관류를 유도한 뇌 오가노이드의 Calcein AM 및 PI 형광 염색 결과를 나타낸 사진이다.
도 9c는 MK-801(1 및 5 μM) 및 에다라본(5 및 50 μM)을 처리한 후 1% 산소-글루코스 결핍을 12시간 유도하고 24 시간 재관류를 유도한 뇌 오가노이드에서의 LDH 발현 수준을 나타낸 그래프이다.
유전자 | 서열번호 | 방향 | 염기서열 |
Oct4 | 서열번호 1 | 정방향 | 5'-GGA GAA GCT GGA GCA AAA C -3' |
서열번호 2 | 역방향 | 5'-ACC TTC CCA AAT AGA ACC CC -3' | |
SOX2 | 서열번호 3 | 정방향 | 5'- AGC TAC AGC ATG ATG CAG GA -3' |
서열번호 4 | 역방향 | 5'- GGT CAT GGA GTT GTA CTG CA -3' | |
MANOG | 서열번호 5 | 정방향 | 5'- TGA ACC TCA GCT ACA AAC AG -3' |
서열번호 6 | 역방향 | 5'- TGG TGG TAG GAA GAG TAA AG -3' | |
MYC | 서열번호 7 | 정방향 | 5'- ACT CTG AGG AGG AAC AAG AA -3' |
서열번호 8 | 역방향 | 5'- TGG AGA CGT GGC ACC TCT T -3' | |
KLF4 | 서열번호 9 | 정방향 | 5'- TCT CAA GGC ACA CCT GCG AA -3' |
서열번호 10 | 역방향 | 5'- TAG TGC CTG GTC AGT TCA TC -3' | |
LHX2 | 서열번호 11 | 정방향 | 5'- TCG GGA CTT GGT TTA TCA CCT -3' |
서열번호 12 | 역방향 | 5'- GTT GAA GTG TGC GGG GTA CT -3' | |
FOXG1 | 서열번호 13 | 정방향 | 5'- CCA GAC CAG TTA CTT TTT CCC -3' |
서열번호 14 | 역방향 | 5'- TGA AAT AAT CAG ACA GTC CCC C -3' | |
PAX6 | 서열번호 15 | 정방향 | 5'-TGT CCA ACG GAT GTG TGA GTA -3' |
서열번호 16 | 역방향 | 5'- CAG TCT CGT AAT ACC TGC CCA -3' | |
SOX1 | 서열번호 17 | 정방향 | 5'- TCC TGG AGT ATG GAC TGT CCG -3' |
서열번호 18 | 역방향 | 5'- GAA TGC AGG CTG AAT TCG G -3' |
Claims (9)
- 줄기세포를 지지세포 없는 매트릭스(freeder free matrix) 상에서 배양하는 단계;
상기 줄기세포를 배상체(Embryoid body)로 형성시키는 단계;
상기 배상체를 신경 유도 배지에서 배양하는 단계;
상기 배양된 배상체를 뇌 분화 배지(Neural induction media)에 넣고 신경상피(Neuroepithelium)를 유도하는 단계;
상기 줄기세포를 3차원 배양하여 뇌 오가노이드를 제조하는 단계;
상기 뇌 오가노이드를 0.5 내지 10% 농도의 저산소 조건 및 글루코스가 포함되지 않은 조건에서 6 내지 12시간 동안 배양하여 뇌 오가노이드에 허혈성 뇌조직의 손상을 발생시키는 단계; 및
상기 뇌 오가노이드를 정상 산소 농도에서 12 내지 24시간 동안 재관류 손상(Reperfusion Injury)시키는 단계를 포함하는 허혈성 뇌질환 모델의 제조방법. - 삭제
- 삭제
- 삭제
- 삭제
- 청구항 1의 방법에 의해 제조된 허혈성 뇌질환 모델.
- 청구항 6에 있어서, 상기 뇌질환은 뇌졸중, 뇌증후군, 뇌혈전증 또는 뇌출혈 인 것인 허혈성 뇌질환 모델.
- 청구항 6의 허혈성 뇌질환 모델에 시험 물질을 접촉시키는 단계; 및
상기 시험 물질이 처리된 허혈성 뇌질환 모델에서 LDH(Lactate dehydrogenase)의 발현 수준 또는 단백질의 활성 수준을 대조군 모델과 비교하는 단계를 포함하는 허혈성 뇌질환의 예방 또는 치료제를 스크리닝 하는 방법. - 청구항 8에 있어서, 상기 LDH의 발현 수준 또는 단백질의 활성 수준이 대조군에 비해 감소한 경우, 허혈성 뇌질환의 예방 또는 치료제인 것으로 판단하는 것인 허혈성 뇌질환의 예방 또는 치료제를 스크리닝 하는 방법.
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