Yamaguchi M, Fujii M, Miyake A
Department of Obstetrics and Gynecology, Osaka University Medical School, Japan.
Eur J Endocrinol. 1996 Sep;135(3):379-81. doi: 10.1530/eje.0.1350379.
We examined whether cAMP regulates expression of activin/inhibin subunit mRNAs in the mouse placenta and decidua. 8-Bromo-cAMP inhibited expression of inhibin alpha-subunit mRNA but stimulated expression of activin/inhibin beta A- and beta B-subunit mRNAs in placenta and decidua by the 3rd day of culture. Forskolin and cholera toxin also regulated expression of activin/inhibin subunit mRNAs in the same manner. However, activin-A did not affect expression of activin/inhibin subunit mRNAs. These findings suggest that cAMP inhibits inhibin production but stimulates activin production in the mouse placenta and decidua.
我们研究了环磷酸腺苷(cAMP)是否调节小鼠胎盘和蜕膜中激活素/抑制素亚基mRNA的表达。在培养的第3天,8-溴环磷酸腺苷抑制了抑制素α亚基mRNA的表达,但刺激了胎盘和蜕膜中激活素/抑制素βA和βB亚基mRNA的表达。福斯高林和霍乱毒素也以同样的方式调节激活素/抑制素亚基mRNA的表达。然而,激活素-A并不影响激活素/抑制素亚基mRNA的表达。这些发现表明,cAMP在小鼠胎盘和蜕膜中抑制抑制素的产生,但刺激激活素的产生。