KR20180115531A - 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법 및 그에 따라 제조된 세포 배양용 셀룰로오스 나노섬유 3차원 구조체 - Google Patents
세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법 및 그에 따라 제조된 세포 배양용 셀룰로오스 나노섬유 3차원 구조체 Download PDFInfo
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Abstract
Description
도 2는 셀룰로오스 나노섬유 3차원 구조체와 매트리젤에서의 캡슐화된 세포의 분포에 관한 SEM 사진을 나타낸 도이다.
도 3은 셀룰로오스 나노섬유로 이루어진 3차원 구조체가 CaCl2 용액에 의해 겔화되고, 겔화 됨으로써 기계적 물성이 증가하는 것을 나타낸 도이다. 도 3의 a는 세포가 캡슐화된 셀룰로오스 나노섬유 하이드로겔 전구체가 Ca2 +용액에 담긴 배지에서 가교 및 고정되는 과정을 나타낸 것이다. 도 3의 b는 셀룰로오스 나노섬유에서 Ca2+와의 연결부위를 나타낸 것이다. 도 3의 c는 셀룰로오스 나노섬유 탄성계수의 변화 그래프이다.
도 4는 셀룰로오스 나노섬유 3차원 구조체와 매트리젤에서의 기공의 크기 및 셀룰로오스 나노섬유 3차원 구조체의 알부민 단백질 투과율을 나타낸 도이다. 도 4의 a는 매트리젤과 셀룰로오스 나노섬유로 이루어진 각각의 3차원 구조체의 기공 크기를 나타낸 것이다. 도 4의 b는 셀룰로오스 나노섬유 3차원 구조체에서 FITC-BSA의 투과도를 나타낸 것이다. 도 4의 c는 BSA 투과도를 시간 제곱근의 함수로 도시한 것이다.
도 5는 3차원 셀룰로오스 구조체에 캡슐화된 세포들이 3주 동안 잘 생장하고 있음을 매트리젤과 비교하여 나타낸 도이다. 도 5의 a는 3차원 구조체에 캡슐화된 조골세포에 대하여 1일 및 21일 경과 후 LIVE/DEAD 염색한 결과를 나타낸 것이다. 도 5의 b는 매트리젤과 셀룰로오스 나노섬유로 이루어진 각각의 3차원 구조체 내부에서의 조골세포의 생장 정도를 나타낸 그래프이다. 도 5의 c는 셀룰로오스 나노섬유 3차원 구조체에 14일간 배양된 전조골세포의 이광자 공초점 이미지(two-photon confocal image)를 나타낸 것이다.
도 6은 캡슐화된 세포가 정상적으로 분화됨을 나타낸 도이다(DM은 조골세포의 분화를 유도하는 세포 배양 배지(differentiation medium)). 도 6의 a는 분화 자극을 주지 않은 셀룰로오스 나노섬유 3차원 구조체, 분화 자극을 받은 셀룰로오스 나노섬유 3차원 구조체, 분화 자극을 받은 매트리젤에서의 세포의 분화여부를 나타낸 것이다. 도 6의 b는 골형성 유전자인 Runx2, T1Col 및 OCN의 발현 정도를 그래프로 나타낸 것이다. (*p<0.05, **p<0.01, ***p<0.005, unpaired t-test).
Claims (14)
- (a) 셀룰로오스 나노섬유를 제조하는 단계;
(b) 상기 셀룰로오스 나노섬유와 세포 포함 배지를 혼합하여 혼합물을 얻는 단계; 및
(c) 상기 혼합물에 이가양이온을 첨가하여 겔화된 셀룰로오스 나노섬유 3차원 구조체를 제조하는 단계;
를 포함하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항에 있어서, 상기 (a) 단계의 셀룰로오스 나노섬유는 카르복실기로 표면개질된 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항에 있어서, 상기 세포는 1차세포 및 줄기세포로 이루어지는 군으로부터 선택되는 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항에 있어서, 상기 세포는 조골세포인 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항에 있어서, 상기 세포는 1×105 내지 5×105개인 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항에 있어서, 상기 (c) 단계의 이가양이온은 Ca2 +, Cu2 +, Mg2 + 및 Zn2 +으로 이루어진 군으로부터 선택된 1종인 것인, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제6항에 있어서, 상기 이가양이온은 CaCl2, CuCl2, CuCO3, CuSO4, MgCl2, MgSO4, ZnCl2 및 ZnSO4으로 이루어진 군으로부터 선택된 1종의 이가양이온 제공 화합물에 의해 첨가되는 것인, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제7항에 있어서, 상기 이가양이온 제공 화합물은 10 내지 200mM인 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항에 있어서, 상기 (c) 단계의 셀룰로오스 나노섬유 3차원 구조체는 20 내지 37℃의 온도에서 겔화된 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체의 제조방법.
- 제1항 내지 제9항 중 어느 한 항의 방법에 의해 제조된 세포 배양용 셀룰로오스 나노섬유 3차원 구조체.
- 제10항에 있어서, 상기 셀룰로오스 나노섬유는 이가양이온을 통해 가교되어 있는 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체.
- 제11항에 있어서, 상기 이가양이온은 Ca2 +, Cu2 +, Mg2 + 및 Zn2 +으로 이루어진 군으로부터 선택된 1종인 것인, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체.
- 제10항에 있어서, 상기 셀룰로오스 나노섬유 3차원 구조체는 균일한 크기의 기공을 갖는 것을 특징으로 하는, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체.
- 제10항에 있어서, 상기 셀룰로오스 나노섬유 3차원 구조체는 조골세포 배양용인, 세포 배양용 셀룰로오스 나노섬유 3차원 구조체.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200098357A (ko) * | 2019-02-12 | 2020-08-20 | 한국과학기술원 | 셀룰로오스 나노파이버와 은 나노와이어를 포함하는 방향성 조절 가능 3차원 구조체와 그의 제조 방법 및 그를 포함하는 충격 흡수재 |
| EP3822409A1 (en) * | 2019-11-12 | 2021-05-19 | BillerudKorsnäs AB | Crosslinked mfc |
| CN116370713A (zh) * | 2023-01-11 | 2023-07-04 | 华东交通大学 | 一种离子交联细菌纤维素骨组织工程支架及其制备与应用 |
| WO2025218555A1 (zh) * | 2024-04-15 | 2025-10-23 | 北京格林微纳科技有限公司 | 一种纤维素衍生物基水凝胶、培养用培养液及其制备方法和应用 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200098357A (ko) * | 2019-02-12 | 2020-08-20 | 한국과학기술원 | 셀룰로오스 나노파이버와 은 나노와이어를 포함하는 방향성 조절 가능 3차원 구조체와 그의 제조 방법 및 그를 포함하는 충격 흡수재 |
| EP3822409A1 (en) * | 2019-11-12 | 2021-05-19 | BillerudKorsnäs AB | Crosslinked mfc |
| EP4058632A1 (en) * | 2019-11-12 | 2022-09-21 | BillerudKorsnäs AB | Crosslinked mfc |
| CN116370713A (zh) * | 2023-01-11 | 2023-07-04 | 华东交通大学 | 一种离子交联细菌纤维素骨组织工程支架及其制备与应用 |
| WO2025218555A1 (zh) * | 2024-04-15 | 2025-10-23 | 北京格林微纳科技有限公司 | 一种纤维素衍生物基水凝胶、培养用培养液及其制备方法和应用 |
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