KR20180129726A - 세포와 세포간의 결합 증진을 위한 고분자 지지체 및 이를 이용한 세포 배양 방법 - Google Patents
세포와 세포간의 결합 증진을 위한 고분자 지지체 및 이를 이용한 세포 배양 방법 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 세포부착성 펩타이드가 고분자 지지체의 고분자 구조에 결합하는 과정 및 예측되는 구조를 나타낸다.
도 3은 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체의 IR분석 결과로 고분자 지지체에 세포부착성 펩타이드가 결합되어 있는 것을 확인한 결과를 나타낸다.
도 4는 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체의 물성을 측정한 결과를 나타낸다.
도 5는 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체에 다양한 세포를 부착시켜 각각의 세포의 표현형을 관찰한 결과를 나타낸다.
도 6은 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체에 부착한 세포의 세포간의 결합력을 관찰한 결과를 나타낸다.
도 7은 본 발명의 세포부착성 펩타이드가 줄기세포의 표현형에 미치는 영향을 확인하고, 세포와 세포간의 특이적 결합력에 의해 부착되어지는 것을 확인한 결과를 나타낸다.
도 8은 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체에 낮은 농도의 세포수를 이용하여 줄기세포를 연골세포로 분화시켰을 때의 줄기세포의 표현형 및 세포간의 결합력을 관찰한 결과를 나타낸다.
도 9는 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체를 이용하여 낮은 농도의 줄기세포를 연골세포로 분화시켰을 때의 분화력을 분석한 결과를 나타낸다.
도 10은 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체를 이용하여 높은 농도의 줄기세포를 연골세포로 분화시켰을 때의 줄기세포의 표현형 및 세포간으이 결합력을 관찰한 결과를 나타낸다.
도 11은 본 발명의 세포부착성 펩타이드가 결합된 고분자 지지체를 이용하여 높은 농도의 줄기세포를 연골세포로 분화시켰을 때의 분화력을 분석한 결과를 나타낸다.
도 12는 본 발명의 고분자 미립구의 형성 방법 및 고분자 미립구에 세포부착성 펩타이드를 결합하는 과정을 나타낸다.
도 13은 본 발명의 고분자 미립구와 줄기세포를 이용하여 응집체를 형성하는 과정을 나타낸다.
도 14는 본 발명의 고분자 미립구와 줄기세포로 형성한 응집체의 물성을 측정한 결과를 나타낸다.
도 15는 본 발명의 고분자 미립구와 줄기세포로 형성한 응집체 안에서 줄기세포의 표현형을 관찰한 결과를 나타낸다.
도 16은 본 발명의 고분자 미립구와 줄기세포로 형성한 응집체 안에서 줄기세포의 생존율을 관찰한 결과를 나타낸다.
도 17은 본 발명의 고분자 미립구와 줄기세포로 형성한 응집체 안에서 줄기세포를 연골세포로의 분화능을 분석하기 위하여 조직학적 평가(알시안 블루, 시리어스 레드)를 한 결과를 나타낸다.
도 18은 본 발명의 고분자 미립구와 줄기세포로 형성한 응집체 안에서 줄기세포를 연골세포로 분화시켰을 때의 분화력을 분석한 결과를 나타낸다.
도 19는 본 발명의 카드헤린 펩타이드의 농도에 따른 줄기세포의 생장능을 분석한 결과를 나타낸다.
도 20는 본 발명의 카드헤린 펩타이드의 농도에 따른 줄기세포의 표현형 및 부착능을 분석한 결과를 나타낸다.
Claims (13)
- 다음을 포함하는 세포 군집 형성을 위한 고분자 세포 지지체:
(a) 알긴산 중합체, 키토산 중합체 및 히알루론산 중합체로 구성된 군으로부터 선택되는 어느 하나 이상으로 이루어진 생체 적합성 고분자 백본; 및
(b) 상기 고분자 백본에 아마이드 결합된, 카드헤린 부착성 올리고펩타이드.
- 제 1 항에 있어서,
상기 생체 적합성 고분자 백본은 상기 아마이드 결합을 형성하기 위한, 카복실기, 히드록실기 또는 아미노기를 포함하는 것을 특징으로 하는, 세포 지지체.
- 제 2 항에 있어서,
상기 고분자 백본은 카복실기 또는 히드록실기를 포함하거나, 카복실기 또는 히드록실기를 포함하도록 표면개질된 것을 특징으로 하는, 세포 지지체.
- 제 1 항에 있어서,
상기 카드헤린 부착성 올리고펩타이드는 서열목록 제1서열로 이루어진 LRP5 펩타이드 또는 서열목록 제2서열로 이루어진 HAV 펩타이드인 것을 특징으로 하는, 세포 지지체.
- 제 4 항에 있어서,
상기 LRP5 펩타이드 또는 상기 HAV 펩타이드는 상기 세포의 카드헤린 단백질과 결합을 형성하는 것을 특징으로 하는, 세포 지지체.
- 제 1 항에 있어서, 상기 세포 지지체는 (c) 상기 고분자 백본에 결합된 인테그린(integrin) 부착성 올리고펩타이드를 추가적으로 더 포함하는 것을 특징으로 하는, 세포 지지체.
- 제 6 항에 있어서,
상기 인테그린 부착성 올리고펩타이드는 RGD, PSHRN, FHRRIKA, YIGSR, KGD, RHD, NGR, SDGR, KQAGDV, LDV, DGEA, YGYYGDALR, FYFDLR, DALR, DLR, RLD, KRLDGS, IDA, IDAPS 및 REDV로 이루어진 군으로부터 선택되는 것을 특징으로 하는, 세포 지지체.
- 제 1 항의 세포 지지체와 세포를 접촉시켜 배양하는 단계를 포함하는 세포 군집형성 배양 방법.
- 제 1 항에 따른 세포 지지체를 포함하는 줄기세포 분화 유도용 조성물.
- 제 9 항에 따른 줄기세포 분화 유도용 조성물과 줄기세포를 접촉시켜 연골세포 분화 조건 배지에서 배양하는 단계를 포함하는, 연골세포로의 분화를 위한 줄기세포 배양 방법.
- (a) 제 1 항에 따른 세포 지지체, 및 (b) 상기 세포 지지체에 결합된 체내 이식을 위한 세포를 포함하는 체내 세포 이식용 조성물.
- 제 11 항에 있어서,
상기 체내 이식을 위한 세포는 줄기세포인 것을 특징으로 하는 조성물.
- 제 11 항에 있어서,
상기 체내 이식을 위한 세포는 줄기세포로부터 분화된 연골세포인 것을 특징으로 하는 조성물.
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