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Development of In vitro Fertilized Bovine Embryos in Medium Supplemented with Matrigel

Matrigel이 첨가된 배양액에서 소 체외수정란의 발달

  • Published : 2006.12.31

Abstract

The purpose of this study was to investigate the effect of Matrigel on the development of bovine embryos after in vitro fertilization. Bovine embryos were cultured in Ⅰ) SOF+ 0.8% BSA(SOF-B), Ⅱ) SOF+ 0.8% BSA plus 0.8% Matrigel(SOF-M) and III) SOF+0.8% BSA and 10% FBS(SOF-BF). The addition of Matrigel appeared not to increase the proportion of blastocysts (SOF-B, 26.6%; SOF-M, 28.2%; SOF-BF, 26.2%). However, the proportion of hatched blastocysts were significantly increased(P<0.05) by Matrigel(SOF-B, 23.7%; SOF-M, 48.7%; SOF-BF, 18.5%). The means of cell number blastocyst was not significantly different among the treatment groups(SOF-B, 172.7±35.5; SOF-M, 175.1±37.4; SOF-BF, 172.8±38.1). The proportion of apoptotic cells in blastocyst was also found to be not significant among the treatment groups(SOF-B, 3.6±3.2%; SOF-M, 4.3±2.6%; SOF-BF, 4.9±4.3%). In this experiment, Matrigel appeared to support embryonic hatching of bovine embryos. Results suggest that Matrigel, as extracellular matrix components, may be another avenue for formulating more physiological culture system in serum-free culture.

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.

Keywords

References

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