miR-4312促进乳腺上皮细胞增殖并抑制其凋亡
发布时间:2021-06-14 14:09
乳腺癌是威胁女性健康的重要因素,其发病机制很复杂,受多重因素影响。近年来miRNA在肿瘤发生发展中的作用越来越受到关注。miRNA是一种内源性非编码小RNA,参与基因表达调控过程,肿瘤组织和细胞中常有异常表达。目前研究发现多种miRNA参与乳腺癌发生发展,如miR-21、miR-155、miR-182、miR-10b、miR-27a、miR-9等有致癌作用,而let-7家族、miR-200家族、miR-205、miR-335、miR-145、miR-19等有抑癌作用。但多数miRNA在乳腺癌中的作用机制尚不清楚。本文通过对比正常人和乳腺癌患者血清中miRNA丰富度,发现一系列miRNA在肿瘤患者血清中的差异表达,并对其用qPCR技术进行了验证。除了文献已报导的miRNA外,本文发现miR-4312在乳腺癌患者血清和乳腺癌细胞中都高表达。在MCF-10A细胞中过表达miR-4312,发现细胞生长曲线斜率明显升高;G0/G1期细胞明显减少,而G2/M期细胞明显增多,凋亡细胞数量明显减少,细胞迁移能力增强。同时还发现解旋酶MCM2表达水平提升,细胞内凋亡相关蛋白Caspase 3、BCL2、...
【文章来源】:内蒙古大学内蒙古自治区 211工程院校
【文章页数】:97 页
【学位级别】:博士
【部分图文】:
miRNA生物合成过程及其作用机制Fig1.1miRNAbiosynthesisandbiologicalfunctions
018年癌症发生率和死亡率的统计结果
miR-21前体的茎环结构(来源于www.miRBase.org)
【参考文献】:
期刊论文
[1]Let-7维持乳腺癌干细胞的特性及机制的研究[J]. 孙欣,樊翀,胡丽娟,杜宁,许崇文,任宏. 细胞与分子免疫学杂志. 2012(08)
[2]PTEN and PDCD4 are Bona Fide Targets of microRNA-21 in Human Cholangiocarcinoma[J]. Chang-zheng Liu 1 , Wei Liu 2 , Yi Zheng 2 , Jin-mei Su 3 , Jing-jing Li 2 , Lan Yu 2 , Xiao-dong He 2 , and Song-sen Chen 1 1 Department of Biochemistry, National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China 2 Department of General Surgery, 3 Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China. Chinese Medical Sciences Journal. 2012(02)
本文编号:3229992
【文章来源】:内蒙古大学内蒙古自治区 211工程院校
【文章页数】:97 页
【学位级别】:博士
【部分图文】:
miRNA生物合成过程及其作用机制Fig1.1miRNAbiosynthesisandbiologicalfunctions
018年癌症发生率和死亡率的统计结果
miR-21前体的茎环结构(来源于www.miRBase.org)
【参考文献】:
期刊论文
[1]Let-7维持乳腺癌干细胞的特性及机制的研究[J]. 孙欣,樊翀,胡丽娟,杜宁,许崇文,任宏. 细胞与分子免疫学杂志. 2012(08)
[2]PTEN and PDCD4 are Bona Fide Targets of microRNA-21 in Human Cholangiocarcinoma[J]. Chang-zheng Liu 1 , Wei Liu 2 , Yi Zheng 2 , Jin-mei Su 3 , Jing-jing Li 2 , Lan Yu 2 , Xiao-dong He 2 , and Song-sen Chen 1 1 Department of Biochemistry, National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China 2 Department of General Surgery, 3 Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China. Chinese Medical Sciences Journal. 2012(02)
本文编号:3229992
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