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[Poster Presentation] - Transgenesis / Xenotransplatation

Genetic Modofication of Miniature Pig to Overcome Xenograft Rejection by Transgenic hCD47 and hTFPI Coexpression

첫 페이지 보기
  • 발행기관
    한국동물생명공학회(구 한국동물번식학회) 바로가기
  • 간행물
    Reproductive & Developmental Biology(Supplement) 바로가기
  • 통권
    Volume 36 No 2 Supplement (2012.06)바로가기
  • 페이지
    pp.150-150
  • 저자
    Sung Han Jung, Jeong Ho Hwang, Sang Eun. Kim, Hoon Taek Lee
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A178397

원문정보

초록

영어
Hyperacture rejection (HAR) of pig organs, upon xenotransplantation into primates, could partly be overcome by knocking out the alpha-Gal gene. However, xenotransplanted organs may still undergo immunological acture rejection (AR) or acute vascular rejection (AVR). Among several genes involved in AR and AVR, the hCD47 evades the monocyte/ macrophage mediated phagocytosis by identifying the self/non-self signal (CD47-SIRPa) whereas hTFPI participates in the regulation of coagulation pathway by acting upstream of the thrombin. In this study, we investigated hCD47 and hTFPI as two possible candidates for avoiding AR and AVR, respectively upon pig-to-human xenotransplantation. A co-expression vector for hCD47 and hTFPI was constructed using 2A peptides system (F2A) and transfected into the porcine kidney cell line (PK-15). The transfected cells stably expressed both hCD47 and hTFPI mRNA and proteins. Co-culture of non-transfected, hCD47-transfected, hTFPI-transfected or hCD47+hTPFI-transfected PK15 cells with natural killer (NK) cells, monocytes and macrophages confirmed the cytotoxic effect of hCD47 and revealed a synergistic effect of hCD47 and hTFPI co-transfection. There was an attractive survivability of 25～30% on each type of innate immune cell, NK cell and macrophage. These results suggest that transgenic pigs, genetically modified for hCD47 and hTFPI may be useful for overcoming xenograft rejection. Furthermore, cotransfection with hTFPI may enhance the cytotoxic effect of hCD47, possibly by assisting the hCD47-SIRPa binding by an unknown mechanism.

키워드

hCD47 hTFPI Xenotransplantation Porcine

저자

  • Sung Han Jung [ Department of Animal Biotechnology, Animal Resources Research Center/Bio-Organ Research Center, Konkuk University, Seoul 143 701, South Korea ]
  • Jeong Ho Hwang [ Department of Animal Biotechnology, Animal Resources Research Center/Bio-Organ Research Center, Konkuk University, Seoul 143 701, South Korea ]
  • Sang Eun. Kim [ Department of Animal Biotechnology, Animal Resources Research Center/Bio-Organ Research Center, Konkuk University, Seoul 143 701, South Korea ]
  • Hoon Taek Lee [ Department of Animal Biotechnology, Animal Resources Research Center/Bio-Organ Research Center, Konkuk University, Seoul 143 701, South Korea ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국동물생명공학회(구 한국동물번식학회) [The Korean Society of Animal Reproduction and Biotechnology]
  • 설립연도
    1976
  • 분야
    농수해양>축산학
  • 소개
    동물번식생리학, 동물생명공학, 수의학, 인공수정 및 수정란이식을 이용한 동물개량에 관한 이론과 기술의 발전을 통해 학계, 연구계, 산업계 및 양축가 상호간의 협력을 도모함으로써 동물과학발전 및 사회일반의 이익에 기여 한다는 목적을 위해 노력해 나가겠습니다.

간행물

  • 간행물명
    Reproductive & Developmental Biology(Supplement)
  • 간기
    연간
  • 수록기간
    2001~2017
  • 십진분류
    KDC 527 DDC 636

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