한국생물공학회:학술대회논문집
- 2003.10a
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- Pages.356-358
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- 2003
Skin regeneration by spray of fibrin gel containing keratinocytes and epidermal growth factor
- Gwak, So-Jung (Department of Chemical Engineering, College of Engineering, Hanyang University) ;
- Kim, Sang-Soo (Department of Chemical Engineering, College of Engineering, Hanyang University, Interdisciplinary Program for Biochemical Engineering and Biotechnology, College of Engineering, Seoul National University) ;
- Choi, Cha-Yong (Interdisciplinary Program for Biochemical Engineering and Biotechnology, College of Engineering, Seoul National University) ;
- Kim, Byung-Soo (Department of Chemical Engineering, College of Engineering, Hanyang University)
- Published : 2003.10.22
Abstract
The use of cultured epidermal sheet grafts for large full-thickness wound has been tempered by weak points such as long culture periods, difficulty in handling the fragile sheets, high costs and the detachment of the skin cells from the culture dishes by enzymatic digestion. To overcome the drawback of epidermal sheet grafts, we have developed a transplantation method to spray the cultured human keratinocytes with the mixtures of rhEGF and fibrin gel matrix to the full-thickness wounds on the dorsum of the athymic mice to regenerate epithelial layers. Wound biopsies were retrieved at 7, 14 and 21 days after transplantation and retrieved biopsies were analyzed by histology and immunohistochemistry. Transplanted keratinocytes and EGF-fibriin gel accelerated wound regeneration compared with control groups. The technique developed in this study overcomes the drawbacks of the current cultured epidermal sheet grafts and accelerates epidermal wound healing.
각질형성세포의 배양법이 개발 후 피부 결손 부위의 치료에 인체 각질형성세포를 배양하여 얻어진 표피를 이식하거나 세포부유물을 도포하는 기존의 방법들은 trypsin 처리 과정을 거치면서 배양된 세포의 부착능력을 가진 단백질이 손상되어 성공적인 피부 재생이 불가능하다. 이 연구에서는 면역결핍 생쥐 모델에서 인간 피부 각질형성에포와 EGF-피브린 고분자 혼합물을 분사하여 피부의 전층 상처를 재생하였다. 조직학 검사와 면역화학검사를 통하여 각질형성세포와 EGF-피브린 고분자를 함께 분사한 경우 이식된 인간 표피세포에 의한 빠른 표피재생을 확인할 수 있었다. 이 피부 재생술은 기존의 배양된 인공피부 sheet의 이식을 이용한 피부재생법에 비해 여러 가지 장점을 가지고 있으므로, 앞으로 화상이나 피부궤양과 같은 피부결손의 효율적인 새로운 치료법으로 사용되어질 수 있을 것이다.
Keywords