KR101490881B1 - 표적 특이적 리간드가 결합된 생체적합성 고분자 나노섬유 스캐폴드를 이용한 표적 세포의 분리 및 배양 방법 - Google Patents
표적 특이적 리간드가 결합된 생체적합성 고분자 나노섬유 스캐폴드를 이용한 표적 세포의 분리 및 배양 방법 Download PDFInfo
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Abstract
본 발명에 따라 표적 특이적 리간드가 결합된 생체적합성 고분자 나노섬유 스캐폴드를 이용하면 표적 세포의 분리가 신속하고 간단하면서도 특이적이고 효율적으로 분리할 수 있어 여러 다양한 세포가 혼합되어 있는 시료로부터 원하는 특정 세포를 분리하기 위한 분리 방법 또는 세포 분리 장치의 개발에 유용하게 이용될 수 있다.
Description
도 2는 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드의 표면을 AFM(Atomic Force Mircoscope)을 이용하여 관찰한 사진이다.
도 3은 항-CD4 항체의 결합 유무에 따른 생체적합성 고분자 나노섬유 스캐폴드 표면의 원자 결합을 비교 분석한 결과를 나타낸 그래프이다.
도 4는 형광이 결합된 항-CD4 항체를 농도별로 생체적합성 고분자 나노섬유 스캐폴드에 처리하였을 때, 형광의 세기를 측정한 그림이다.
도 5는 생체적합성 고분자 나노섬유 스캐폴드에 결합된 항체의 함량을 micro BCA 방법을 이용하여 측정한 그래프이다.
도 6은 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드의 결합의 안정성을 알아보기 위해 형광의 세기를 측정한 그래프이다.
도 7은 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드에 세포 혼합물을 처리하였을 때, 부착되지 않은 CD4+ T세포의 비율을 FACS(fluorescence activated cell sorter)를 이용하여 확인한 그래프이다.
도 8은 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드를 이용하여 세포를 분리하였을 때, 부착되지 않고 나온 세포의 수(A) 및 분리효율(B)을 나타낸 그래프이다.
도 9는 항-CD4 항체가 미결합된 생체적합성 고분자 나노섬유 스캐폴드와 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드에 결합된 세포를 형광염색을 통해 확인한 사진이다.
도 10은 항-CD4 항체가 미결합된 생체적합성 고분자 나노섬유 스캐폴드와 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드에 결합된 세포를 1, 3 및 5일 동안 배양한 결과를 형광염색을 통해 확인한 사진이다.
도 11은 배양 3일째에 항-CD4 항체가 미결합된 생체적합성 고분자 나노섬유 스캐폴드와 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드에 결합된 세포를 SEM (Scanninf Electron Mircoscope)을 이용하여 관찰한 사진이다.
도 12는 항-CD4 항체가 미결합된 생체적합성 고분자 나노섬유 스캐폴드와 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드에 세포를 배양하였을 때, 스캐폴드에서 떨어져 나오는 세포의 총 개수(A) 및 CD4+ T세포의 수(B)를 확인한 그래프이다.
도 13은 항-CD4 항체가 미결합된 생체적합성 고분자 나노섬유 스캐폴드와 항-CD4 항체가 결합된 생체적합성 고분자 나노섬유 스캐폴드에 세포를 배양하였을 때, 스캐폴드에서 떨어져 나오는 세포에서 활성화 되었을 때 분비되는 IFN-gamma (A)와 세포 분열시 나타나는 Ki-67 (B) 그리고 IFN-gamma를 분비하면서 Ki-67을 발현하고 있는 세포를 확인한 그래프이다 (C).
Claims (7)
- 표적 특이적 리간드가 딥코팅에 의해 결합된 생체적합성 고분자 나노섬유 스캐폴드에 표적 세포를 포함하는 시료를 접촉시키고, 상기 스캐폴드에 결합된 표적 특이적 리간드에 의해 포획된 표적 세포를 분리하는 것을 포함하며,
상기 생체적합성 고분자는 PLGA(poly(lactide-co-glycolide))인
표적 세포의 분리 방법. - 삭제
- 제1항에 있어서,
표적 특이적 리간드는 항체 또는 앱타머인 표적 세포의 분리 방법. - 제1항에 있어서,
표적 세포는 조혈모세포, 중간엽 기질 세포, T 세포, CD4+ T 세포, CD8+ T 세포, 항원특이적 CD4+ T 세포, 항원특이적 CD8+ T 세포, 중심 기억 CD4+ T 세포, 효과기 기억 CD4+ T 세포, 중심 기억 CD8+ T 세포, 효과기 기억 CD8+ T 세포, γ/δ T 세포, Skin-homing T 세포, NK 세포, B 세포, 항원특이적 기억 B세포, 기억 B 세포, Pre-B 세포, 대식세포, 수지상세포, 과립구, 골수세포, 백혈구, 비만세포, 적혈구 생성 세포, 적혈구, 거핵구, 내피세포, 섬유아세포, 신경세포, 상피종양세포, 또는 흑색종세포인 표적 세포의 분리 방법. - 제1항에 있어서,
상기 시료는 혈액, 림프절, 비장, 파이어판(peyer's patch) 또는 골수인 표적 세포의 분리 방법. - 제1항, 제3항, 제4항 및 제5항 중 어느 한 항에 따라 표적 세포를 시료로부터 분리하고 이를 배양하는 것을 포함하는 표적 세포의 배양 방법.
- 제6항에 있어서,
표적 세포는 생체적합성 고분자 나노섬유 스캐폴드에 포획된 상태에서 배양되는 것인 표적 세포의 배양 방법.
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