雌激素受體ERα亞細胞定位及其與細胞生長的相關(guān)性
[Abstract]:Estrogen receptor (estrogen receptor,ER) is a member of nuclear receptor superfamily (nucleus receptor,NR). As a hormone receptor, ER can be activated by estradiol estradiolone E2, the main component of estrogen. ER is widely distributed in female or male reproductive system, mammary gland, and parts of central nervous system. At the same time, ER also participates in various important physiological regulation processes such as cell proliferation, differentiation and apoptosis. ER can be divided into two subtypes, ER 偽 and ER 尾, which are composed of four different functional domains, each of which plays a different role. The four functional domains are: transcriptional activation region (A- / B), ligand binding region (LBD), hinge region (Hinge) and DNA binding region (DBD). In this paper, we constructed different deletion mutants of ER 偽 (ER LBD,ER DBD and ER Hinge) to study the effects of different functional domains on the subcellular localization of ER 偽 in cell proliferation, subcellular localization and E2 stimulation. The results showed that the distribution of ER 偽 was less, that of ER LBD was nuclear localization, that of ER DBD was less than that of nucleus, and that of ER Hinge was mainly distributed in plasma, and there was a small amount of ER Hinge in nucleus. Further analysis showed that E2 induced ER 偽 nucleation was (NLS) dependent. In addition, we also found that ER 偽 can enhance the proliferation of 293T cells, and this proliferative effect depends on the normal transport of ER 偽 in nucleus and cytoplasm. Retinoid X receptor (retinoid X receptor, RXR) is a member of steroid / thyroid hormone receptor superfamily, and its ligand retinoid (retinoids) is a natural or synthetic vitamin A derivative. Retinin plays an important role in cell growth, differentiation and apoptosis through RXRs. RXR 偽 can bind with ER 偽 to form heterodimer, but the role of RXR 偽 in assisting ER 偽 transport has not been reported. Our results show that RXR 偽 can assist the nucleation of ER DBD and ER Hinge, and when E2 is treated, the ER DBD of the nucleation returns to the nucleus, but the ER Hinge of the nucleus is not affected. The results suggest that different functional domains of ER 偽 play different roles in the interaction with RXR 偽 and E2. In conclusion, we confirmed the role of different functional domains of ER 偽 in its subcellular localization and proliferation, and found that RXR 偽 can assist ER DBD and ER Hinge to produce nuclei. This provides us with some ideas for further study on the mechanism of ER 偽 and E2 and for more effective prevention and treatment of breast cancer.
【學位授予單位】:廈門大學
【學位級別】:碩士
【學位授予年份】:2006
【分類號】:R341
【相似文獻】
相關(guān)期刊論文 前10條
1 陳志梅;馬大正;雷麗紅;孫云;王新顏;;補胞湯對胚泡著床障礙小鼠子宮內(nèi)膜容受性的影響[J];江西中醫(yī)藥;2011年03期
2 ;[J];;年期
3 ;[J];;年期
4 ;[J];;年期
5 ;[J];;年期
6 ;[J];;年期
7 ;[J];;年期
8 ;[J];;年期
9 ;[J];;年期
10 ;[J];;年期
相關(guān)會議論文 前7條
1 黃鶯;劉勝;;培補肝腎法治療黃褐斑[A];中華中醫(yī)藥學會皮膚科分會第四次學術(shù)年會;全國中醫(yī)、中西醫(yī)結(jié)合皮膚病診療新進展高級研修班論文集[C];2007年
2 李藝;夏勇;劉世敏;具紫勇;史曉嵐;陳妙根;程玲;何金森;;電針對圍絕經(jīng)期綜合征患者血清E2、FSH、LH的影響[A];中國針灸學會2009學術(shù)年會論文集(下集)[C];2009年
3 郝春芳;謝向陽;朱建華;江澤飛;宋三泰;葉棋濃;;NFAT3在乳腺癌細胞中影響雌激素受體轉(zhuǎn)錄活性的研究[A];第四屆中國腫瘤學術(shù)大會暨第五屆海峽兩岸腫瘤學術(shù)會議論文集[C];2006年
4 趙璽龍;劉潔;王映梅;楊守京;;葡萄糖轉(zhuǎn)運蛋白1在乳腺癌組織中的表達與ER、Ki-67表達的關(guān)系及其臨床意義[A];中華醫(yī)學會病理學分會2006年學術(shù)年會論文匯編[C];2006年
5 衛(wèi)建平;張小琴;;P73、P53、ER、PR在食道癌及癌前病變中的表達及意義[A];中華醫(yī)學會病理學分會2006年學術(shù)年會論文匯編[C];2006年
6 劉蘭英;林志葦;劉憲俊;潘文謙;武志鵬;劉曉嵐;吳淑平;;脾腎俞穴位埋線對原發(fā)性骨質(zhì)疏松婦女內(nèi)分泌激素的調(diào)控作用[A];2011中國針灸學會年會論文集(摘要)[C];2011年
7 劉蘭英;林志葦;劉憲俊;潘文謙;武志鵬;劉曉嵐;吳淑平;;脾腎俞穴位埋線對原發(fā)性骨質(zhì)疏松婦女內(nèi)分泌激素的調(diào)控作用[A];中國針灸學會臨床分會全國第十九屆針灸臨床學術(shù)研討會論文集[C];2011年
相關(guān)博士學位論文 前1條
1 黃愛華;宮瘤清含藥血清對子宮肌瘤細胞ER、PR、EGFR、IGF-1R及肌瘤細胞凋亡的實驗研究[D];成都中醫(yī)藥大學;2005年
相關(guān)碩士學位論文 前10條
1 楊超毅;雌激素受體ERα亞細胞定位及其與細胞生長的相關(guān)性[D];廈門大學;2006年
2 謝華;子宮內(nèi)膜異位癥內(nèi)膜組織中縮宮素受體、雌激素受體表達的相關(guān)研究[D];鄭州大學;2007年
3 劉偉;乳腺癌數(shù)字化X線攝影(DR)表現(xiàn)與ER、PR及C-erbB-2因子表達的相關(guān)性研究[D];中國醫(yī)科大學;2005年
4 韓文雅;ER、PR與巨乳發(fā)生發(fā)展相關(guān)性的實驗研究[D];蘇州大學;2009年
5 王晶晶;加熱聯(lián)合順鉑對不同ER表達的乳腺癌細胞株的抑制作用[D];中南大學;2007年
6 宋非無;隱睪癥中雌激素水平和雌激素受體亞型-α、β的研究[D];福建醫(yī)科大學;2007年
7 秦國強;性激素在人腦膜瘤中的表達及意義[D];南昌大學;2009年
8 李聰聰;葡多酚對乳腺癌細胞的抑制作用與調(diào)控受體的研究[D];青島大學;2008年
9 劉慧楠;乳腺癌全數(shù)字化鉬靶X線表現(xiàn)與ER、PR、P53表達的相關(guān)性研究[D];延邊大學;2008年
10 田玉東;性激素受體在病理性瘢痕中的表達及意義[D];山東大學;2005年
,本文編號:2261901
本文鏈接:http://sikaile.net/yixuelunwen/binglixuelunwen/2261901.html