KR102408550B1 - 유사교세포로 분화 유도된 후기 단계의 인간 중간엽 줄기세포를 유효성분으로 함유하는 알츠하이머 치료용 약학적 조성물 - Google Patents
유사교세포로 분화 유도된 후기 단계의 인간 중간엽 줄기세포를 유효성분으로 함유하는 알츠하이머 치료용 약학적 조성물 Download PDFInfo
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Abstract
Description
도 1b는 인간 중간엽 줄기세포(hMSC)와 이로부터 유도된 유사교세포(ghMSC)에서 성상 아교 세포의 마커인 GFAP, S100β, SLC1A3, SLC1A2, 희소돌기 신경교세포의 마커인 Sox10, 희소돌기 신경교세포 전구체 마커인 PDGFRα 및 허혈성 조건에서 중요한 역할을 하는 마커인 PAPP-A의 발현을 나타낸 도이다.
도 1c는 성상 아교 세포의 마커인 GFAP, S100β의 발현을 면역조직화학 염색으로 확인한 도이다.
도 1d는 성상 아교 세포의 마커인 GFAP, S100β의 발현이 전체 유사교세포에서 각각 발현하는 비율을 나타낸 도이다.
도 2는 아밀로이드 베타에 의해서 신경 줄기 세포의 생존력이 감소했지만, 아밀로이드 베타와 유사교세포 insert well이나 신경교세포 배양액(CM)을 함께 처리했을 경우에는 신경 줄기 세포의 생존력이 증가하는 것을 CCK-8 분석을 통해 확인한 도이다.
도 3은 아밀로이드 베타에 의해서 신경 줄기 세포의 생존력이 감소했지만, 아밀로이드 베타와 유사교세포 insert well이나 신경교세포 배양액(CM)을 함께 처리했을 경우에는 신경 줄기 세포의 생존력이 증가하는 것을 Trypan blue 염색을 통해 확인한 도이다.
도 4는 아밀로이드 베타 독성에 의해 증가되었던 신경 줄기 세포의 세포독성이 유사교세포와의 공동 배양으로 인해 감소된 것을 젖산 탈수소 효소(LDH) 수치 측정을 통해 확인한 도이다.
도 5는 아밀로이드 베타 독성에 의해 감소되었던 신경 줄기 세포의 증식력이 유사교세포와의 공동 배양으로 인해 증가된 것을 BrdU 분석을 통해 확인한 도이다.
도 6a는 신경줄기세포(NSC), 아밀로이드 베타를 처리한 신경 줄기 세포(NSC+Aβ) 및 유사교세포를 처리한 군(NSC+Aβ+ghMSC)에서 염증조절복합체인 NLRP3, caspase-1, 및 전염증성 사이토카인인 IL-1β의 발현 변화를 확인한 도이다.
도 6b는 신경줄기세포(NSC), 아밀로이드 베타를 처리한 신경 줄기 세포(NSC+Aβ) 및 유사교세포를 처리한 군(NSC+Aβ+ghMSC)에서 염증조절복합체인 NLRP3의 발현을 확인한 것으로, 아밀로이드 베타에 의해 증가한 NLRP3의 발현이 유사교세포 처리에 의해 통계적으로 유의할 정도로 발현이 감소한 것을 확인한 도이다.
도 6c는 신경줄기세포(NSC), 아밀로이드 베타를 처리한 신경 줄기 세포(NSC+Aβ) 및 유사교세포를 처리한 군(NSC+Aβ+ghMSC)에서 염증조절복합체인 caspase-1의 발현을 확인한 것으로, 아밀로이드 베타에 의해 증가한 caspase-1의 발현이 유사교세포 처리에 의해 통계적으로 유의할 정도로 발현이 감소한 것을 확인한 도이다.
도 6d는 신경줄기세포(NSC), 아밀로이드 베타를 처리한 신경 줄기 세포(NSC+Aβ) 및 유사교세포를 처리한 군(NSC+Aβ+ghMSC)에서 전염증성 사이토카인인 IL-1β의 발현을 확인한 것으로, 아밀로이드 베타에 의해 증가한 IL-1β의 발현이 유사교세포 처리에 의해 통계적으로 유의할 정도로 발현이 감소한 것을 확인한 도이다.
도 7은 비히클 투여군, 인간 중간엽 줄기세포(hMSC) 투여군 및 유사교세포(ghMSC) 투여군에서 escape latency를 확인한 것으로, 유사교세포(ghMSC)가 공간지각능력에 대한 장기 기억력 개선에 치료 효과를 나타냄을 확인한 도이다.
도 8은 비히클 투여군, 인간 중간엽 줄기세포(hMSC) 투여군 및 유사교세포(ghMSC) 투여군에서 escape latency를 확인한 것으로, 유사교세포(ghMSC)가 알츠하이머로 인한 기억력 및 공간 인지력 저하 개선에 효과를 나타냄을 확인한 도이다.
Claims (11)
- 유사교세포(glia-like cell)로 분화 유도된 후기 단계(late-passage)의 인간 중간엽 줄기세포(ghMSC)를 유효성분으로 함유하는 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 유사교세포는 희소 돌기 아교 세포(oligodendroglia), 성상 아교 세포(astrocyte), 미세 아교 세포(microglia) 및 방사 신경교세포(radial glia)로 구성된 군으로부터 어느 하나 이상인 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 후기(late-passage) 인간 중간엽 줄기세포는 10 내지 15 passage인 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 ghMSC는 골수, 지방조직, 혈액, 제대혈, 간장, 피부, 위장관, 태반 및 자궁으로 구성된 군으로부터 선택되는 어느 하나로부터 유래되는 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 조성물은 염증조절복합체(inflammasome) 인자들의 발현을 감소시키는 것인, 알츠하이머 치료용 약학적 조성물.
- 제5항에 있어서, 상기 염증조절복합체는 NLRP3(NLR family pyrin domain-containing protein 3), 카스파아제-1(caspase-1), 및 IL-1β로 구성되는 군으로부터 선택되는 어느 하나 이상인 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 조성물은 해마 의존적 공간 학습 능력을 향상시키는 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 조성물은 공간 인지력을 향상시키는 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 ghMSC는 6×105 내지 6×107 세포/㎏으로 투여되는 것인, 알츠하이머 치료용 약학적 조성물.
- 제1항에 있어서, 상기 ghMSC는 세포 치료제로 사용되는 것인, 알츠하이머 치료용 약학적 조성물.
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