Matrigel이 첨가된 배양액에서 소 체외수정란의 발달
Development of In vitro Fertilized Bovine Embryos in Medium Supplemented with Matrigel
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본 연구의 목적은 소 체외수정란의 체외발달에 있어서 Matrigel의 첨가효과를 조사하는 것이었다. 소 체외수정란은 Ⅰ) SOF+0.8% BSA (SOF-B), Ⅱ) 0.8% Matrigel이 첨가된 SOF+0.8% BSA (SOF-M), 그리고 Ⅲ) SOF+0.8% BSA 배양 후, SOF+10% FBS(SOF-BF)에서 배양을 실시하였다. 배양액 내 Matrigel의 첨가는 배반포 발달율을 증가시키지 않는 것으로 나타났다(SOF-B, 26.6%; SOF-M, 28.2%; SOF-BF, 26.2%). 그러나, 부화 배반포의 비율은 Matrigel 첨가에 의하여 유의하게 증가하는 것으로 나타났다(SOF-B, 23.7%; SOF-M, 48.7%; SOF-BF, 18.5%) (P<0.05). 배반포의 세포수를 조사한 결과는 각 처리군 간에 차이가 없는 것으로 나타났으며(SOF-B, 172.7±35.5; SOF-M, 175.1±37.4; SOF-BF, 172.8±38.1), 또한 세포자연사가 유발된 세포수의 비율도 각 처리군 간에 차이가 없는 것으로 조사되었다(SOF-B, 3.6±3.2%; SOF-M, 4.3±2.6%; SOF-BF, 4.9±4.3%). 본 실험결과는 Matrigel이 소 체외수정란의 부화과정을 촉진시키는 것으로 나타났다. 이상의 결과들을 종합해 볼 때, 세포외 기질 복합체인 Matrigel의 첨가는 무혈청 수정란 배양체계에서 보다 생리적인 환경을 조성할 수 있는 방법이 될 수 있을 것으로 사료된다.
Abstract
These authors contributed equally to this work.Corresponding author : Kim, Dong-Hoon Ph.D. Animal Biotechnology Division, National Livestock Research Institute 564 Omokchun-dong, Kwonsun-gu, Suwon 441-706, Korea.TEL: +82-31-290-1633, E-mail: kimdhhj@hanmail.net
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