Expression and localization of inhibin/activin and activin receptors in GH3 cells, a rat pituitary adenocarcinoma cell line

Expression and localization of inhibin/activin and activin receptors in GH3 cells, a rat pituitary adenocarcinoma cell line
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大鼠垂体腺癌细胞系 GH3 细胞中抑制素/激活素和激活素受体的表达和定位

DOI:
10.1007/bf03347851
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发表时间:
1996
影响因子:
5.4
通讯作者:
S. Ying
S. Ying
中科院分区:
医学3区
文献类型:
--
作者:
C. Ying;Z. Zhang;G. Huang;S. Li;S. Ying

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抑制素和激活素是转化生长因子 ß (TGFß) 超家族的成员。由于 TGFβ 已被证明是垂体腺癌细胞系 GH3 的有效增殖抑制剂,因此我们确定了该细胞系 (a) 是否转录编码抑制素/激活素亚基(α 和 ßA)以及激活素受体 I、II 和 IIB 的 mRNA; (b)产生抑制素和/或激活素蛋白。分别使用逆转录聚合酶链式反应 (RT-PCR) 分析和原位杂交检测和定位 GH3 细胞中抑制素和激活素受体 I、II 和 IIB 的 α- 和 ßA- 亚基的信使 RNA。 RT-PCR 产物的身份通过 PCR 产物的 DNA 测序来确认。免疫细胞化学显示,抑制素和激活素位于这些细胞中。我们的研究结果表明,GH3 细胞表达编码抑制素 α 和 βA 亚基以及激活素受体 I、II 和 IIB 的信使 RNA,并产生抑制素/激活素蛋白,这表明这些性腺生长因子可能在大鼠垂体腺癌中具有旁分泌/自分泌功能。此外,这些观察表明这些生长因子可能参与调节大鼠垂体腺癌细胞的生长和分化。
Inhibins and activins are members of the transforming growth factor ß (TGFß) superfamily. Since TGFß has been shown to be a potent proliferation-inhibiting agent for the pituitary adenocarcinoma cell line, GH3, we determined whether this cell line (a) transcribes mRNAs coding for inhibin/activin subunits (α and ßA) and activin receptors I, II, and IIB; and (b) produces inhibin and/or activin proteins. Messenger RNAs for the α- and ßA-sub-units of inhibin and activin receptors I, II, and IIB in GH3 cells were detected and localized using the reverse transcription-polymerase chain reaction (RT-PCR) analysis and in situ hybridization, respectively. The identity of the RT-PCR products was confirmed by DNA sequencing of PCR products. Immunocytochemically, inhibin and activin were localized in these cells. Our findings indicate that messenger RNAs encoding inhibin α- and ßA-subunits and activin receptors I, II, and IIB were expressed, and inhibin/activin proteins were produced, by GH3 cells, imply that these gonadal growth factors may have paracrine/autocrine functions in rat pituitary adenocarcinoma. Further, these observation suggest that these growth factors may be involved in regulating the growth and differentiational of rat pituitary adenocarcinoma cells.
通过转化生长因子-β 在 GH3 细胞中抑制催乳素基因转录。
DOI: 10.1210/mend-5-11-1716
发表时间: 1991
期刊: Molecular endocrinology (Baltimore, Md.)
影响因子: --
作者:
Delidow,BC;Billis,WM;Agarwal,P;White,BA
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Activin 抑制转录因子 Pit-1 与生长激素启动子的结合。
DOI: 10.1073/pnas.89.23.11451
发表时间: 1992
影响因子: 11.1
作者:
Struthers,RS;Gaddy-Kurten,D;Vale,WW
通讯作者: Vale,WW
使用 [α-33P] 和 [α-32P]dATP 进行 PCR 产物测序。
DOI: --
发表时间: 1994
期刊: BioTechniques
影响因子: 2.7
作者:
Barnard,GF;Puder,M;Begum,NA;Chen,LB
通讯作者: Chen,LB
DOI: 10.1172/jci115827
发表时间: 1992
期刊: The Journal of clinical investigation
影响因子: --
作者:
Spencer,SJ;Rabinovici,J;Mesiano,S;Goldsmith,PC;Jaffe,RB
通讯作者: Jaffe,RB
DOI: 10.1210/endo-125-4-2134
发表时间: 1989-10-01
期刊: ENDOCRINOLOGY
影响因子: 4.8
作者:
LIN, T;CALKINS, JH;BARDIN, CW
通讯作者: BARDIN, CW