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논문 상세정보

무지개송어의 간세포 초대배양에 의한 Vitellogeinin 합성 유도

Vitellogenin Induction by Rainbow trout (Oncorhynchus mykiss) Hepatocytes in Primary Culture

초록

무지개송어의 초대배양 간세포에 있어서 Vitellogenin (VTG)의 합성 유도는 전기영동적 수법에 의해 행하였다. 간세포는 7일 동안 phositively charged dish를 이용한 배양으로 단층 확산되었다. 배양 7일의 간세포 생존율은 $E_2$의 유무에 따라 각각 20.7% 및 23.6%가 감소하였으며, DNA함유량도 각각 13.7% 및 14.0%가 감소하였다. $E_2$ 첨가군과 대조군간에는 생존율과 DNA 함유량에 있어서는 유의한 차이가 나타나지 않았다. 그리고, 총 단백질에 대한 VTG의 비율은 $E_2$$10^{-6}$ M의 첨가시에 최대치를 나타내었다. 그러나, 고농도($10^{-5}$M)에서는 오히려 감소하는 경향을 나타내었다.

Abstract

Vitellogenin (VTG) induction in response estradiol-17${\beta}$ ($E_2$) were electrophoretically examined in primary hepatocyte cultures in rainbow trout. The hepatocytes were maintained as monolayers on positively charged dishes for up to 7 days. The viability of hepatocytes on Day 7 in cultures decreased about 20.7% and 23.6% with and without $E_2$, respecitively. The amount of DNA per dish also decreased to 13.7% and 14.0% with and without $E_2$, respectively. There were no differences in viability and DNA content between the control and $E_2$-treated culture. Moreover, the rate of VTG to total protein concentrations reached the maxium level at the addition of $10^{-6}$ M E2, to the incubation medium. However, the higher concentration of $10^{-5}$ M $E_2$ rater depressed the level.

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