OCT4依賴ERα調(diào)控DNMT1/ISL1/ERK軸對(duì)乳腺癌細(xì)胞增殖的抑制作用
發(fā)布時(shí)間:2021-12-10 19:14
目的:探討OCT4依賴ERα通過DNMT1/ISL1/ERK軸抑制乳腺癌細(xì)胞增殖的作用,為不同分型乳腺癌中靶向OCT4治療提供理論和實(shí)驗(yàn)依據(jù)。方法與結(jié)果:1.乳腺癌組織和細(xì)胞中OCT4的表達(dá)(1)Oncomine數(shù)據(jù)庫和免疫組織化學(xué)方法分析和檢測OCT4在乳腺癌組織中的表達(dá)。結(jié)果顯示,與乳腺上皮組織相比,OCT4在乳腺癌組織中表達(dá)明顯低于乳腺上皮組織。(2)Expression Atlas數(shù)據(jù)庫、RT-PCR和Western blot方法分析和檢測OCT4在不同乳腺癌細(xì)胞中的表達(dá)。結(jié)果顯示,OCT4在乳腺癌細(xì)胞MDA-MB-231和MCF-7中表達(dá)明顯低于乳腺上皮細(xì)胞HBL-100。以上結(jié)果表明,OCT4在乳腺癌組織和細(xì)胞中低表達(dá)。2.建立過表達(dá)OCT4的乳腺癌細(xì)胞系及鑒定利用慢病毒轉(zhuǎn)染方法在MCF-7和MDA-MB-231細(xì)胞中過表達(dá)OCT4,并用RT-PCR、Western blot和細(xì)胞免疫熒光實(shí)驗(yàn)鑒定OCT4的表達(dá)及定位。結(jié)果顯示,MCF-7-OCT4和MDA-MB-231-OCT4細(xì)胞中OCT4高表達(dá),主要定位于細(xì)胞核。以上結(jié)果表明,成功建立過表達(dá)OCT4的乳腺癌細(xì)胞系。3....
【文章來源】:吉林大學(xué)吉林省 211工程院校 985工程院校 教育部直屬院校
【文章頁數(shù)】:107 頁
【學(xué)位級(jí)別】:博士
【部分圖文】:
Oncomine數(shù)據(jù)庫分析OCT4在乳腺癌組織中的表達(dá)Fig.3.1(A-D)ThemRNAexpressionofOCT4wasdetectedinbreastandinvasivebreastcarcinomainallofthefourprobes(59738_at,132563_at,144601_at,214841_at)inFinakbreastdataset,Oncomine.
圖 3.2 免疫組織化學(xué)檢測 OCT4 在乳腺癌組織中的表達(dá)及其定位Fig. 3.2 OCT4 expression was determined by immunohistochemistry assay in breastand breast cancer tissues. Images were taken under light microscope at 200× and 400×magnification. ***, P<0.001.表 3.1 OCT4 在不同分型乳腺癌組織中的表達(dá)Molecular subtype Receptor status OCT4 expression P valueNormal (n=10) + 0.001LuminalA(n=10) ER+, PR+, HER2- -Luminal B (n=10) ER+, PR+, HER2+ -HER2 (n=10) ER-, PR-, HER2+ -TNBC (n=10) ER-, PR-, HER2- -
圖 3.3 Expression Atlas 數(shù)據(jù)庫中 OCT4 在乳腺癌細(xì)胞中的表達(dá)Fig. 3.3 The mRNAexpression of OCT4 was down-regulated in MCF-7, UACC-812and ZR-75-1 cells compared with HBL-100 and MCF-10Acells in ExpressionAtlasdataset.3.1.2.2 RT-PCR 和 Western blot 檢測乳腺癌細(xì)胞中 OCT4 的表達(dá)利用 RT-PCR 和 Western blot 方法分別檢測乳腺上皮細(xì)胞 HBL-100、MDA-MB-231及MCF-7細(xì)胞中OCT4的表達(dá)。結(jié)果顯示,MDA-MB-231和MCF-7細(xì)胞中 OCT4 的表達(dá)明顯低于 HBL-100 細(xì)胞,如圖 3.4 所示。
【參考文獻(xiàn)】:
期刊論文
[1]Genome-wide analysis of OCT4 binding sites in glioblastoma cancer cells[J]. Xue-feng FANG 1,2,Wei-yi ZHANG 1,2,Na ZHAO 2,Wei YU 2,Dong DING 2,Xu HONG 2,Li-sha LI 2,Hua-rong ZHANG 2,Shu ZHENG 1,Biao-yang LIN 2(1 Key Laboratory of Cancer Prevention and Intervention of Ministry of Education,Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province,Cancer Institute,the Second Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou 310009,China) (2 Systems Biology Division,Zhejiang-California International Nanosystems Institute (ZCNI),Zhejiang University,Hangzhou 310029,China). Journal of Zhejiang University-Science B(Biomedicine & Biotechnology). 2011(10)
本文編號(hào):3533236
【文章來源】:吉林大學(xué)吉林省 211工程院校 985工程院校 教育部直屬院校
【文章頁數(shù)】:107 頁
【學(xué)位級(jí)別】:博士
【部分圖文】:
Oncomine數(shù)據(jù)庫分析OCT4在乳腺癌組織中的表達(dá)Fig.3.1(A-D)ThemRNAexpressionofOCT4wasdetectedinbreastandinvasivebreastcarcinomainallofthefourprobes(59738_at,132563_at,144601_at,214841_at)inFinakbreastdataset,Oncomine.
圖 3.2 免疫組織化學(xué)檢測 OCT4 在乳腺癌組織中的表達(dá)及其定位Fig. 3.2 OCT4 expression was determined by immunohistochemistry assay in breastand breast cancer tissues. Images were taken under light microscope at 200× and 400×magnification. ***, P<0.001.表 3.1 OCT4 在不同分型乳腺癌組織中的表達(dá)Molecular subtype Receptor status OCT4 expression P valueNormal (n=10) + 0.001LuminalA(n=10) ER+, PR+, HER2- -Luminal B (n=10) ER+, PR+, HER2+ -HER2 (n=10) ER-, PR-, HER2+ -TNBC (n=10) ER-, PR-, HER2- -
圖 3.3 Expression Atlas 數(shù)據(jù)庫中 OCT4 在乳腺癌細(xì)胞中的表達(dá)Fig. 3.3 The mRNAexpression of OCT4 was down-regulated in MCF-7, UACC-812and ZR-75-1 cells compared with HBL-100 and MCF-10Acells in ExpressionAtlasdataset.3.1.2.2 RT-PCR 和 Western blot 檢測乳腺癌細(xì)胞中 OCT4 的表達(dá)利用 RT-PCR 和 Western blot 方法分別檢測乳腺上皮細(xì)胞 HBL-100、MDA-MB-231及MCF-7細(xì)胞中OCT4的表達(dá)。結(jié)果顯示,MDA-MB-231和MCF-7細(xì)胞中 OCT4 的表達(dá)明顯低于 HBL-100 細(xì)胞,如圖 3.4 所示。
【參考文獻(xiàn)】:
期刊論文
[1]Genome-wide analysis of OCT4 binding sites in glioblastoma cancer cells[J]. Xue-feng FANG 1,2,Wei-yi ZHANG 1,2,Na ZHAO 2,Wei YU 2,Dong DING 2,Xu HONG 2,Li-sha LI 2,Hua-rong ZHANG 2,Shu ZHENG 1,Biao-yang LIN 2(1 Key Laboratory of Cancer Prevention and Intervention of Ministry of Education,Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province,Cancer Institute,the Second Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou 310009,China) (2 Systems Biology Division,Zhejiang-California International Nanosystems Institute (ZCNI),Zhejiang University,Hangzhou 310029,China). Journal of Zhejiang University-Science B(Biomedicine & Biotechnology). 2011(10)
本文編號(hào):3533236
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