酸性微環(huán)境下胃癌SGC7901細(xì)胞自噬水平的變化及其對細(xì)胞增殖影響的研究
[Abstract]:Aim: to investigate the changes of SGC7901 autophagy and its effect on proliferation of gastric adenocarcinoma cell line in acidic environment. Methods: human gastric adenocarcinoma cell line SGC7901 was selected as the study cell, and the effect of acid stress on the formation of autophagy in gastric cancer cell line SGC7901 was detected by transmission electron microscope and confocal laser microscope. Western-Blot was used to detect the expression of autophagy associated protein (LC3-II,p62) in SGC7901 cells exposed to acidic conditions for a short time and a long time. The changes of autophagy level of SGC7901 cells were investigated under acidic environment for different periods of time. The expression of LC3-II,p62 in SGC7901 cells was detected after treatment with bavaromycin A1, and the changes of autophagy in SGC7901 cells under acidic conditions were investigated, and the effect of inhibition of autophagy on proliferation of SGC7901 cells in acidic environment was detected by CCK-8 assay. The result is 1: 1. Compared with SGC7901 cells cultured in neutral environment, autophagy and lysosome formation in SGC7901 cells of gastric cancer cultured in acidic environment increased under transmission electron microscope. Laser confocal microscopy showed that the number of LC3 fluorescent particles in SGC7901 cells cultured in acid medium was higher than that in SGC7901 cells cultured in neutral environment. Fluorescence dispersion of LC3 in SGC7901 cells cultured in neutral environment. 2. 2. Compared with SGC7901 cells cultured in neutral environment, the expression of LC3-II increased in SGC7901 cells cultured in acid medium, and the expression of p62 in SGC7901 cells cultured in pH 6.5 for a long time was higher than that in SGC7901 cells cultured in pH 6.5 for a long time. The autophagy was enhanced in acidic environment. Inhibition of acidic environment induced autophagy can induce cell proliferation inhibition. Conclusion: the level of autophagy of gastric cancer SGC7901 cells is up-regulated in acidic environment, and the autophagy exists steadily for a long time and does not increase or decrease with the prolongation of time. The proliferation of gastric cancer SGC7901 cells in acidic environment was slower than that in normal environment, and inhibition of autophagy in acidic environment and normal environment could induce inhibition of SGC7901 cell proliferation. Autophagy in acidic environment had protective effect on gastric cancer SGC7901.
【學(xué)位授予單位】:青島大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:R735.2
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 章晟;于長明;殷瑛;陳薇;;細(xì)胞自噬在病原體感染過程中的作用研究進(jìn)展[J];軍事醫(yī)學(xué)科學(xué)院院刊;2009年05期
2 邢國勝;賀桂泉;趙文君;;藥物對細(xì)胞自噬性死亡的干預(yù)作用[J];天津藥學(xué);2011年03期
3 ;《現(xiàn)代細(xì)胞自噬分子生物學(xué)》出版[J];診斷學(xué)理論與實踐;2011年05期
4 ;《現(xiàn)代細(xì)胞自噬分子生物學(xué)》出版[J];診斷學(xué)理論與實踐;2011年06期
5 陳蘭芳;肖亮;楊軍平;;細(xì)胞自噬的分子機制及其功能[J];實驗與檢驗醫(yī)學(xué);2014年02期
6 李桂蘭;閆華超;;細(xì)胞自噬對衰老的調(diào)節(jié)[J];中國老年學(xué)雜志;2010年09期
7 王琦;蘇舒;王立新;;胞內(nèi)感染病原體與細(xì)胞自噬相互作用的研究進(jìn)展[J];東南大學(xué)學(xué)報(醫(yī)學(xué)版);2010年03期
8 ;《自然-細(xì)胞生物學(xué)》:蛋白抗癌與其誘導(dǎo)細(xì)胞自噬有關(guān)[J];現(xiàn)代生物醫(yī)學(xué)進(jìn)展;2010年20期
9 汪昌麗;滿娜;溫龍平;;納米材料誘導(dǎo)細(xì)胞自噬的效應(yīng)及生物學(xué)功能[J];東南大學(xué)學(xué)報(醫(yī)學(xué)版);2011年01期
10 錢帥偉;漆正堂;支彩霞;丁樹哲;;抑癌基因p53與細(xì)胞自噬[J];生命的化學(xué);2011年05期
相關(guān)會議論文 前10條
1 許赤;陳文捷;楊楊;李華;易述紅;陳規(guī)劃;;老年大鼠肝臟細(xì)胞自噬及其移植后改變[A];2013中國器官移植大會論文匯編[C];2013年
2 劉杰民;紀(jì)云西;蔣歷;黃貴華;鄭超偉;郭超峰;;細(xì)胞自噬是探索中醫(yī)藥微觀機制的新思路[A];中華中醫(yī)藥學(xué)會脾胃病分會第二十四次全國脾胃病學(xué)術(shù)交流會論文匯編[C];2012年
3 李康生;代劍平;;病毒感染與細(xì)胞自噬[A];新發(fā)和再發(fā)傳染病防治熱點研討會論文集[C];2011年
4 楊鍵;鄧玉杰;張曉燕;呂鵬飛;徐俊;楊穎;寧光;;脂肪細(xì)胞自噬檢測方法的建立及意義探討[A];中華醫(yī)學(xué)會第十一次全國內(nèi)分泌學(xué)學(xué)術(shù)會議論文匯編[C];2012年
5 陳英;樸英杰;;人肝細(xì)胞自噬性凋亡的形態(tài)學(xué)觀察[A];第十二屆全國電子顯微學(xué)會議論文集[C];2002年
6 楊鍵;鄧玉杰;張曉燕;呂鵬飛;徐俊;楊穎;寧光;;脂肪細(xì)胞自噬檢測方法的建立及意義探討[A];中華醫(yī)學(xué)會糖尿病學(xué)分會第十六次全國學(xué)術(shù)會議論文集[C];2012年
7 趙穎;楊靜;廖文娟;劉向宇;張輝;王杉;王冬來;馮京南;俞立;朱衛(wèi)國;;胞漿中Fox01引起細(xì)胞自噬進(jìn)而發(fā)揮抑制腫瘤的功能[A];中華醫(yī)學(xué)會腫瘤學(xué)分會第七屆全國中青年腫瘤學(xué)術(shù)會議——中華醫(yī)學(xué)會腫瘤學(xué)分會“中華腫瘤 明日之星”大型評選活動暨中青年委員全國遴選論文匯編[C];2011年
8 陳永;鄒s舠,
本文編號:2200198
本文鏈接:http://www.sikaile.net/yixuelunwen/zlx/2200198.html