Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Formation of Spheroids of Adult Rat Primary Hepatocytes in Polyurethane Foam

폴리우레탄 폼을 이용한 쥐 일차 간세포의 구상체 배양

  • 안재일 (동국대학교 공과대학 화학공학과) ;
  • 이두훈 (동국대학교 공과대학 화학공학과, 서울대학교 의과대학 의공학연구소, 광주과학기술원 신소재공학과, (주)동성화학 중앙연구소)
  • Published : 1998.06.01
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Abstract

This paper is fundamental study to develope the extracorporeal liver support system for patient with fulminant hepatic failure(FHF) or being expected for orthotopic liver transplantation. The polyurethane foam, which is composed of the density of 33kg/m3, the average pore diameter of 500${\mu}{\textrm}{m}$, the closed window of 60-70%, was manufactured with the prepolymer of 15% NCO-, Hepatocytes were inoculated to form spheroids in polyurethane foam. The time of spheroid formation in BSA(Bovine Serum Albumin) coated polyurethane foam was shorter than that in raw polyurethane foam. To verify the function of hepatocyte spheroids, we measured ammonia removal rate, urea and albumin secretion rate. Polyurethane foam was suitable for culture of hepatocyte spheroids. And culture of hepatocyte spheroids in polyurethane foam has high possibility in using as an extracorporeal liver support system.

본 논문은 급성 간 부전 환자나 간이식 대기상태에 있는 환자에 이용하기 위한 체외 간 보조장치를 개발하기 위한 기초 실험에 관한 것이다. 밀도 33kg/m, 평균 직경 500um, 60-70%의 window를 가진 폴리우레탄 폼을 15% NCO-프리폴리머로 제조하였다. 폴리우레탄 폼에 접종된 간세포는 3일 후에 거의 모두 100-150um 크기의 구상체를 형성하였다. BSA 코팅을 한 폴리우레탄 폼은 BSA로 코팅하지 않은 폴리우레탄 폼보다 간세포 구상체 형성 시간이 더 짧았다. 폴리우레탄 폼에 형성된 간세포 구상체의 간 기능을 증명하기 위하여 암모니아 제거율과 요소 및 알부민 분비율을 측정하였다. 폴리우레탄 폼은 간세포 구상체 배양에 적합하며, 폴리우레탄 폼 내에서의 간세포 구상체 배양은 체외 간 보조장치로의 개발 가능성이 높다.

Keywords

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