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KMID : 1005220060210040281
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Journal of Embryo Transfer
2006 Volume.21 No. 4 p.281 ~ p.286
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Hormonal Changes in Cultured Medium on In Vitro Culture of Bovine Oviduct Epithelial Cells (BOEC) Supplemented with UK-4
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Choi Sun-Ho
Cho S. R.
Han Man-Hee
Kim H- J.
Son D. S.
Sang B. D.
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Abstract
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This study was conducted to investigate the hormonal changes in cultured medium during in vitro culture of bovine oviduct epithelial cells (BOEC) supplemented with interleukin (IL)-4 of 0.001, 0.01, 0.1 or 1 ng/ml. BOEC were collected from the oviduct and washed 3 times with 1% antibiotic-mycotic-DMEM medium and cultured at $39^{\circ}C$, 5% $CO_2$, 95% air for 24$\sim$120 hrs. The cultured media were analyzed hormonal changes with hormonal analyzing kit (progesterone (P4), estradiol (E2) : Perkin Elmer, USA) and Transforming growth factor (TGF)-$\beta$ with Eliza kit (Promega, USA). The production of P4 in 0.001 IL-4 was increased as the culture time increased. P4 production was significantly higher in the medium cultured for 120 hrs than 24 hrs (P<0.05). P4 production in 0.01 ng/ml group was similar to that of 0.001 ng/ml. The production of E2 in 0.001 and 0.01 ng/ml groups were increased to 72 hrs like P4 production and showed significantly different between the culture periods (P<0.05). After the culture for 96 hrs, P4 and E2 production were increased to 96 hrs, but decreased at 120 hrs. The production of TGF-$\beta$ showed no changes according to culture period or supplementation of IL-4. In conclusion, the supplementation of IL-4 can increase the production of P4 and E2 and might have important role for the successful pregnancy in bovine.
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KEYWORD
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bovine oviduct epithelial cell, IL-4, progesterone, estradiol, TGF-$\beta$
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