Regulation of Cyclooxygenase-2 and Prostaglandin F Synthase Gene Expression by Steroid Hormones and Interferon-τ in Bovine Endometrial Cells.

Regulation of Cyclooxygenase-2 and Prostaglandin F Synthase Gene Expression by Steroid Hormones and Interferon-τ in Bovine Endometrial Cells.
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牛子宫内膜细胞中类固醇激素和干扰素-τ 对环氧合酶-2 和前列腺素 F 合酶基因表达的调节。

DOI:
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发表时间:
1998
期刊:
影响因子:
4.8
通讯作者:
A. Goff
A. Goff
中科院分区:
医学2区
文献类型:
--
作者:
C. Xiao;Jianmin Liu;J. Sirois;A. Goff

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在反刍动物的发情周期中,雌二醇(E2)和孕酮负责调节子宫内膜中PG的合成,而干扰素-τ(IFN-τ)改变妊娠早期的PG合成。在这项研究中,我们研究了这些类固醇激素和重组牛IFN-τ(rbIFN-τ)对PG生产和环氧化酶-2(考克斯-2)和PG F(PGF)合成酶(PGFS)基因表达的影响。E2使上皮细胞PGF 2 α和PGE 2(PGE 2)分泌减少,孕酮使PGF 2 α分泌增加。类固醇激素对基质细胞PG的产生没有影响。rbIFN-τ可抑制上皮细胞PGF 2 α和PGE 2的产生,而增强间质细胞PGF 2 α和PGE 2的产生及PGE 2/PGF 2 α的比值。北方印迹分析显示,E2和rbIFN-τ可降低上皮细胞考克斯-2 mRNA水平。相反,rbIFN-τ可增加基质细胞中考克斯-2 mRNA的表达。结论rbIFN-τ可抑制PGFSmRNA的表达。
Estradiol (E2) and progesterone are responsible for regulating PG synthesis in the endometrium during the estrous cycle and interferon-τ (IFN-τ) alters PG synthesis during early pregnancy in ruminants. In this study, we examined the effects of these steroid hormones and recombinant bovine IFN-τ (rbIFN-τ) on PG production and on cyclooxygenase-2 (COX-2) and PG F (PGF) synthase (PGFS) gene expression in isolated endometrial cells. E2 decreased both PGF2α and PG E2 (PGE2) whereas progesterone increased PGF2α secretion in epithelial cells. Steroid hormones had no effect on PG production in stromal cells. rbIFN-τ attenuated both PGF2α and PGE2 production in epithelial cells and enhanced their production, and the ratio of PGE2 to PGF2α, in stromal cells. Northern blot analysis showed that E2 and rbIFN-τ decreased COX-2 messenger RNA (mRNA) levels in epithelial cells. Conversely, rbIFN-τ increased COX-2 mRNA in stromal cells. Furthermore, rbIFN-τ decreased PGFS mRNA in both cell types and this was associated wit...
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