Journal of Embryo Transfer (한국수정란이식학회지)

The Korean Society of Embryo Transfer (한국수정란이식학회)
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Production of Bovine Transgenic Somatic Cell Nuclear Transfer Embryos by Demecolcine-assisted Enucleation

Demecolcine-assisted Enucleation에 의한 소 형질 전환 핵이식란 생산

  • Cho J.K. (College of Veterinary Medicine, Chungnam National University) ;
  • Son J.M. (College of Veterinary Medicine, Chungnam National University) ;
  • Lee D.S. (College of Veterinary Medicine, Chungnam National University) ;
  • Yoon K.Y. (Department of Animal Science, Shingu College) ;
  • Shin S.T. (College of Veterinary Medicine, Chungnam National University)
  • Published : 2006.06.01
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Abstract

본 연구는 소 형질 전환 체세포 핵이식에서 용이한 탈핵을 위해 demecolcine을 이용할 시 탈핵율과 핵이식란의 발육능을 높이기 위한 최적의 조건을 알아보고자 실시되었다. 도축장 유래 미성숙 난자를 18시간 체외성숙 후 제1극체가 확인된 성숙 난자를 0.1, 0.2, 0.4 및 0.8 ug/ml의 demecolcine이 첨가된 배지에서 1시간 더 처리한 다음 세포막이 돌출되어 있는 난자를 체세포 핵이식에 공여하여 각 군간 배반포로의 발육능을 비교하였다. Demecolcine 처리 후 핵이 포함된 셰포막의 protrusion rates를 각 군간 비교한 결과 0.2, 0.4 및 0.8 ug/ml 군에서 0.1 ug/ml 군보다 유의적으로 높았으며 (82.8, 86.2, 90.4 vs. 70.1%), conventional blind 방법과 비교한 결과 demecolcine를 이용한 군에서 유의적으로 높은 탈핵율을 보였다(75.3 vs. 96.2%; p<0.05). 체세포 핵이식란의 발육능 비교에서는 0.1 및 0.2ug/ml 군에서 대조군과 함께 유의적으로 높은 분할율 및 배반포로의 발육능을 보였다(p<0.05). 결론적으로 소 형질전환 체세포 핵이식을 위한 탈핵시 높은 탈핵율과 배반포로의 발육율을 얻을 수 있는 demecolcine의 적정농도는 0.2ug/ml이라고 사료된다.

Keywords

References

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