雙氫楊梅樹皮素對人視網(wǎng)膜母細胞瘤細胞色素C氧化酶表達的影響
[Abstract]:Objective: to determine the expression of cytochrome C oxidase (cytochrome coxidase,COX) protein in retinoblastoma (retinoblastoma,RB) cells treated with or without dihydromyricetin (ampelopsin,APS). To investigate the effect of Dihydromyricetin on the growth of human retinoblastoma cells in vitro and its antitumor mechanism. Methods: the human RB cell line (HXO-RB44) at logarithmic growth stage was cultured in vitro. The concentration of APS was set up in three groups: 33.33 (high), 14.84 (middle), 4.40 (low) ug/mL, blank control group and 2.00ug/mL positive control group. The expression of cytochrome C oxidase protein IV subunit in retinoblastoma cells was measured by WESTBOLT method after 24 hours of intervention by APS drugs, and the relative gray scale was obtained. Results: the activity of cytochrome C oxidase IV subunit was significantly decreased in RB cells cultured in vitro after 24 hours of intervention by APS in different concentration groups. The difference was statistically significant between each APS drug group and the blank control group and the positive control group. The activity of COX IV was significantly decreased in 4.40ug/mL group, with a relative gray value of 0.112 鹵0.032. The expression of, COX IV activity decreased with the increase of drug concentration. Conclusion: 1.APS can reduce the expression of COX IV activity, leading to the COX not being assembled normally, the function decreasing, the electron transfer of mitochondrial respiratory chain being inhibited, and then causing mitochondrial damage and activating the apoptosis process of tumor cells. The expression of 2.COX IV activity has its own regulatory mechanism, and there may be a priming threshold. The expression of 2.COX IV activity does not decrease with the increase of APS concentration.
【學(xué)位授予單位】:廣西醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2012
【分類號】:R739.7
【參考文獻】
相關(guān)期刊論文 前10條
1 蕭力爭;郭維;劉素純;銀霞;;茶葉提取物與二氫楊梅素抑菌活性比較研究[J];安徽農(nóng)業(yè)大學(xué)學(xué)報;2008年02期
2 陳靜;郭麗娜;鄭成;;二氫楊梅素對糖耐量異常大鼠氧化和非酶糖基化的影響[J];吉林大學(xué)學(xué)報(醫(yī)學(xué)版);2008年06期
3 曾春暉,楊柯;藤茶中APS對小鼠淋巴細胞增殖反應(yīng)的影響[J];廣西中醫(yī)學(xué)院學(xué)報;2002年01期
4 鐘正賢,覃潔萍,陳學(xué)芬,周桂芬;雙氫楊梅樹皮素對鏈脲霉素所致糖尿病大鼠的降糖作用(英文)[J];廣西科學(xué);2000年03期
5 熊皓平;吉宏武;楊偉麗;張友勝;;顯齒蛇葡萄提取物抗常見呼吸道致病菌活性的研究[J];廣西農(nóng)業(yè)生物科學(xué);2007年02期
6 劉曉翌,劉建軍;Caspase與細胞凋亡[J];武漢大學(xué)學(xué)報(醫(yī)學(xué)版);2004年06期
7 楊學(xué)敏;陳立峰;;二氫楊梅素的生物活性研究進展[J];中醫(yī)藥導(dǎo)報;2008年12期
8 蔣才武;李炳超;唐乾利;;雙氫楊梅素與G-四鏈體的相互作用研究[J];化學(xué)學(xué)報;2007年19期
9 周藝群;谷志遠;;線粒體與細胞凋亡[J];解剖科學(xué)進展;2006年01期
10 熊大勝,朱金桃,劉朝陽;顯齒蛇葡萄幼嫩莖葉提取物抑菌作用的研究[J];食品科學(xué);2000年02期
相關(guān)會議論文 前1條
1 武曉玉;張玉萌;鄭作文;郭成賢;倫玉寧;;藤茶雙氫楊梅樹皮素對A549肺癌細胞凋亡相關(guān)基因wptp53表達的影響[A];2010年中國藥學(xué)大會暨第十屆中國藥師周論文集[C];2010年
相關(guān)碩士學(xué)位論文 前1條
1 唐琪;雙氫楊梅樹皮素誘導(dǎo)人視網(wǎng)膜母細胞瘤細胞氧化及凋亡的研究[D];廣西醫(yī)科大學(xué);2011年
本文編號:2289372
本文鏈接:http://sikaile.net/yixuelunwen/wuguanyixuelunwen/2289372.html