KR101089614B1 - 무세포 진피 기질의 제조 방법 및 그로부터 제조된 무세포 진피 기질 - Google Patents
무세포 진피 기질의 제조 방법 및 그로부터 제조된 무세포 진피 기질 Download PDFInfo
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Abstract
Description
도 2는 농도별 수크로스가 사용된 동결보존액으로 동결건조시킨 무세포 진피 기질을 전자 현미경으로 150 및 1,000배 확대하여 촬영한 사진이다. (A: 0% 수크로스, 150배; B: 0% 수크로스, 1,000배; C: 10% 수크로스, 150배; D: 10% 수크로스, 1,000배; E: 30% 수크로스, 150배; F: 30% 수크로스, 1,000배)
도 3은 실시예, 및 비교예 1 및 2의 무세포 진피 기질을 H&E 염색 후 광학 현미경으로 100배 확대하여 촬영한 사진이다. (A: 실시예; B: 비교예 1; C: 비교예 2)
도 4는 수크로스를 최종 농도 30 중량%로 포함하는 동결 보호제로 처리한 동결보존 무세포 진피 기질과 비교예 1 및 2의 무세포 진피 기질에 대하여 콜라겐 분해효소에 의한 분해성을 측정한 결과를 나타낸 그래프이다. (Positive control: 콜라겐 분말을 콜라겐 분해효소 처리; Negative control: 콜라겐 분해효소 처리 안 함)
Claims (7)
- i) 동종 피부의 표피를 제거하고;
ⅱ) 진피 내 세포를 제거하며;
ⅲ) 글리세롤, 프로필렌 글리콜, 및 기본 용매 또는 용액을 혼합하고;
ⅳ) 상기 용액에 수크로스를 최종 농도가 20 내지 40 중량%가 되도록 용해하여 동결 보호제를 제조하며;
ⅴ) 상기 동결 보호제를 상기 표피 및 진피 내 세포가 제거된 피부에 침투시키고;
ⅵ) 상기 동결 보호제가 침투된 피부를 동결 건조하는 것을 포함하는 무세포 진피 기질의 제조 방법. - 제1항에 있어서, 글리세롤, 프로필렌 글리콜 및 기본 용매 또는 용액의 혼합비가 중량 기준으로 0.5 ~ 2 : 0.5 ~ 2 : 6 ~ 10인 것을 특징으로 하는 무세포 진피 기질의 제조 방법.
- 제1항에 있어서, 상기 기본 용매 또는 용액이 증류수, 생리 식염수(normal saline), 인산완충용액(PBS), HBSS(Hank's balanced salt solution), TBS(Tris buffered saline), TAPS(N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic acid) 완충용액, Bicine(N,N-Bis(2-hydroxyethyl)glycine) 완충용액, HEPES(4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) 완충용액, TES(N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonicd acid) 완충용액, PIPES(piperazine-N,N'-bis(2-ethanesulfonic acid) 완충용액, 카코딜레이트(cacodylate) 완충용액, MES(2-(N-morpholino)ethanesulfonic acid) 완충용액, MEM(Minimum Essential Media), DMEM(Dulbecco's Modified Eagle Media), RPMI 1640, IMDM(Iscove's Modified Dulbecco's Media), Defined Keratinocyte-SFM(without BPE(Bovine Pituitary Extract)), Keratinocyte-SFM(with BPE), KnockOut D-MEM, AmnioMAX-II Complete Medium 및 AmnioMAX-C100 Complete Medium로 이루어지는 그룹 중에서 선택되는 하나 이상인 것을 특징으로 하는 무세포 진피 기질의 제조 방법.
- 제1항에 있어서, 수크로스의 최종 농도가 30 중량%인 것을 특징으로 하는 무세포 진피 기질의 제조 방법.
- 제1항에 있어서, 동결 보호제를 분리된 피부에 침투시키는 것이 4℃의 저온 반응기에서 6 시간 내지 24 시간 동안 침투시키는 것을 특징으로 하는 무세포 진피 기질의 제조 방법.
- 제1항에 있어서, 동결 보호제가 침투된 피부를 분당 -1℃의 속도로 동결하는 것을 특징으로 하는 무세포 진피 기질의 제조 방법.
- 제1항 내지 제6항 중 어느 한 항의 방법에 의하여 제조된 무세포 진피 기질.
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US13/580,248 US9623149B2 (en) | 2010-02-26 | 2010-06-11 | Method for producing an acellular dermal matrix, and acellular dermal matrix produced by same |
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