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Multi-branched PEG Conjugation with Catechol for Successful Pancreatic Islet Transplantation

첫 페이지 보기
  • 발행기관
    한국생물공학회 바로가기
  • 간행물
    한국생물공학회 학술대회 바로가기
  • 통권
    2010 추계학술대회 및 국제심포지움 (2010.10)바로가기
  • 페이지
    pp.145-145
  • 저자
    Jee-Heon JEONG, Seon Ki HONG, Simmyung YOOK, Yoonsuk JUNG, Khue CAO DUY, Sung Woo HONG, Bokhyeon IM, Jun-Beom PARK, Jinwon SEO, Haeshin LEE, Dong Yun LEE, Youngro BYUN
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A129238

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원문정보

초록

영어
Background. Surface camouflage using poly(ethylene glycol) (PEG) onto islet is promising approach for immunoprotection of transplanted islets. Furthermore go one step, here, we analyzed that 6-arm-PEG-catechol grafting on the islets plus low dose of FK506 are effectively improve the islets survival time under the strong rat to mouse xengenic islet transplantation model. Methods. After end group of 6-armed PEG was modified with catechol, it was grafted onto the surface of rat pancreatic islet. Then surface coverage, viability and functionality of islets were evaluated in vitro. The function of surface modified islets was also evaluated after xenotransplantation into diabetic mice. In addition, its synergistic effect with low dose of FK506 immunosuppressant was evaluated in vivo. Results.
6-arm-PEG-catechol did not affect the viability of islets for 1hr at 1% condition. The median survival time (MST) of 6-arm-PEG-catechol grafted islets was 12 days. However, the MST of unmodified islets was 10.5 days. Furthermore, the MST of 6-arm-PEG-catechol grafted islet plus 0.2 mg/kg of FK506 treatment was significantly increased compared to that of unmodified islets plus 0.2 mg/kg of FK506 treatment.(6 arm-PEG-catechol grafted islet receiving group: 21 days, unmodified islets receiving group: 10 days) Conclusion. Newly developed protocol using polymer and clinically used immunosuppressive drug would certainly be an effective combination therapy for the treatment of type 1 diabetes.

키워드

catechol pancreatic islets surface modification immunoprotection

저자

  • Jee-Heon JEONG [ College of Pharmacy, Seoul National University, Seoul, 151-742. ]
  • Seon Ki HONG [ Department of Chemistry, College of Natural Science, Korea Advanced Institute of Science and Techonology, Taejeon, 305-701. ]
  • Simmyung YOOK [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Yoonsuk JUNG [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Khue CAO DUY [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Sung Woo HONG [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Bokhyeon IM [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Jun-Beom PARK [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Jinwon SEO [ College of Pharmacy, Seoul National University, Seoul 151-742. ]
  • Haeshin LEE [ Graduate School Nanoscience and Techonology, College of Natural Science, Korea Advanced Institute of Science and Technoloyg, Taejeon, 305-701. ]
  • Dong Yun LEE [ Department of Bioengineering, College of Engineering, and Institute for Bioengineering and Biopharmaceutical Research, Hanyang University, Seoul 133-791, South Korea. ]
  • Youngro BYUN [ College of Pharmacy, Seoul National University, Seoul 151-742. ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
  • 설립연도
    1984
  • 분야
    공학>생물공학
  • 소개
    이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다 1. 생물공학 분야의 발전을 위한 연구 협력 2. 생물공학의 실용화를 촉진시키기 위한 산학 협동 3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최 4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간 5. 생물공학 발전을 위한 정책 건의 6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동

간행물

  • 간행물명
    한국생물공학회 학술대회
  • 간기
    반년간
  • 수록기간
    1985~2013
  • 십진분류
    KDC 476 DDC 576

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