Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Effect of Bovine Granulosa Cell Culture Supernatant on In Vitro Development of Mouse Embryos

소 과립막세포의 배양 상층액이 생쥐배의 체외발달에 미치는 영향

  • Lee, Sang-Bum (College of Life Science and Natural Resource, Pusan National University) ;
  • Moon, Sin-Hong (College of Life Science and Natural Resource, Pusan National University) ;
  • Kim, Seon-Ku (College of Life Science and Natural Resource, Pusan National University)
  • 이상범 (부산대학교 생명자원과학대학) ;
  • 문신홍 (부산대학교 생명자원과학대학) ;
  • 김선구 (부산대학교 생명자원과학대학)
  • Published : 2009.12.30
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Abstract

This study was carried out to examine a concentration of steroid hormones and in vitro development of mouse embryos in culture supernatant of bovine granulosa cells (GC). To obtain the culture supernatant, granulosa cells were retrieved from mature follicles (6~15 mm diameter) and immature follicles (2~5 mm diameter) of bovine ovary and were cultured, respectively, in media of Ham's F-10 with 15% FCS for 16 days. Mature and immature granulosa cells formed their monolayers easily and showed similar growth patterns in culturing. There was no morphological difference between mature and immature granulosa cells. High levels of both progesterone and estradiol were detected in the culture supernatant of mature granulosa cells and immature granulsa cells, and the endocrine profiles of the two types of cells were similar. Progesterone secretion of granulosa cells was high in the late stage of culturing and estradiol secretion was high in the early stage of culturing. In vitro development rates of mouse embryos to morula, blastocyst and hatched blastocyst were significantly (p<0.05) higher in culture supernatant of mature granulosa cells (92.7%, 78.1% and 34.5%) and in culture supernatant of immature granulosa cells (96.4%, 78.5% and 26.8%) than in Ham's F-10 (86.7%, 41,7% and 13.3%). However, there was no difference between the culture supernatant of mature granulosa cells and the culture supernatant of immature granulosa cells in the development of embryos.

본 연구는 소의 과립막세포 배양상층액에서 스테로이드 호르몬의 농도와 생쥐 배의 체외 발달에 미치는 효과를 검토하기 위하여 수행되었다. 소의 성숙난포(직경 6~15 mm)와 미성숙 난포(직경 2~5 mm)로부터 과립막세포를 각각 분리하여 15% FCS가 첨가된 Ham's F-10 배양약에서 16일간 배양하였다. 과립막세포들은 쉽게 단층배엽을 형성 하였으며, 배양과정 중 비슷한 성장패턴을 나타내었다. 또한 성숙 과립막세포와 미성숙 과립막세포 간에 형태적인 차이가 없었다. 과립막세포 배양 중 progesterone과 estradiol 생산이 활발하게 이루어졌으며, progesterone은 배양후기에, estradiol은 배양초기에 분비량이 높았다. 성숙 과립막세포와 미성숙 과립막세포에서 내분비 양상은 비슷하였다. 생쥐배가 상실배, 배반포 및 부화배반포 단계로 체외발달된 비율은 Ham'F-10배양액(86.7%, 41.7%, 13.3%)에 비하여 성숙 과립막세포 배양상층액(92.7%, 78.1%, 34.5%)과 미성숙 과립막세포 배양상층액(96.4%, 78.5%, 26.8%)에서 유의적으로 높았다(p<0.05). 그러나 배의 발달에 대하여 성숙 과립막세포배양상층액과 미성숙 과립막세포 배양상층액 간에는 차이가 없었다.

Keywords

References

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