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lincRNA ULK4P2对肝癌细胞生物学行为的影响
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作者 余婷婷 陈飞 +1 位作者 杨宏山 李俊 《中华临床医师杂志(电子版)》 CAS 2018年第8期456-461,共6页
目的通过干扰肝癌细胞株中长链基因间非编码RNA ULK4P2(lincRNA ULK4P2的表达,初步观察lincRNA ULK4P2对肝癌细胞生物学行为的影响。方法运用实时荧光定量聚合酶链反应(RT-qPCR)检测lincRNA ULK4P2在不同肝癌细胞株和正常肝细胞株中的表... 目的通过干扰肝癌细胞株中长链基因间非编码RNA ULK4P2(lincRNA ULK4P2的表达,初步观察lincRNA ULK4P2对肝癌细胞生物学行为的影响。方法运用实时荧光定量聚合酶链反应(RT-qPCR)检测lincRNA ULK4P2在不同肝癌细胞株和正常肝细胞株中的表达,根据RT-qPCR检测结果,选择肝癌细胞株HepG2进行后续干扰实验。将针对lincRNA ULK4P2的小干扰RNA(siRNA)序列,包括siRNA-1、siRNA-2、siRNA-3、siRNA-mock(空白对照)、siRNA-Scramble(将目的 siRNA序列打乱后重新组合所得的阴性对照)转染HepG2细胞,根据转染序列siRNA后对HepG2细胞lincRNA ULK4P2的干扰效果,选择siRNA-2进行之后的功能检测。应用siRNA下调HepG2细胞中lincRNA ULK4P2的表达,运用CCK-8技术研究lincRNA ULK4P2表达下降对肝癌细胞增殖情况的影响,运用流式细胞仪检测lincRNA ULK4P2表达下降对肝癌细胞凋亡和细胞周期分布的影响。对CCK-8实验中siRNA-2组、siRNA-mock组和siRNA-Scramble组HepG2细胞增殖活性(吸光度)的比较采用单因素方差分析。对分别转染siRNA-2、siRNA-mock、siRNA-Scramble的HepG2细胞通过流式细胞仪检测所得细胞周期分布情况,采用单因素方差分析。结果 CCK-8实验显示,与siRNA-mock组和siRNA-Scramble组比较,siRNA-2组HepG2细胞在转染后72 h增殖活性明显下降,差异具有统计学意义(P <0.05)。下调HepG2细胞lincRNA ULK4P2的表达后,细胞各个周期时相中细胞数目无明显变化;siRNA-2组HepG2细胞中G2/M期细胞的比例(43.92%)相对于siRNA-mock组(7.81%)和siRNA-Scramble组(8.21%)明显上升,差异具有统计学意义(P<0.05)。结论 lincRNA ULK4P2可能参与了肝癌细胞增殖和细胞周期的分子调控过程。 展开更多
关键词 长链基因间非编码RNAulk4p2 肝癌 作用机制
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Long noncoding RNAs in hepatitis B virus-related hepatocellular carcinoma 被引量:8
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作者 Ting-Ting Yu Xi-Ming Xu +4 位作者 Yi Hu Jun-Jian Deng Wei Ge Na-Na Han Mei-Xia Zhang 《World Journal of Gastroenterology》 SCIE CAS 2015年第23期7208-7217,共10页
AIM: To study the expression of long noncoding RNAs(lncRNAs) in hepatitis B virus(HBV)-related hepatocellular carcinoma(HCC).METHODS: The lncRNA profiles between HBV-related HCC tissues and corresponding normal liver ... AIM: To study the expression of long noncoding RNAs(lncRNAs) in hepatitis B virus(HBV)-related hepatocellular carcinoma(HCC).METHODS: The lncRNA profiles between HBV-related HCC tissues and corresponding normal liver tissues were generated using microarray analysis. Datasets were analyzed using multiple algorithms to depict alterations in gene expression on the basis of gene ontology(GO), pathway analysis, and lncRNA levels.RESULTS: The microarray revealed that 1772 lncRNAs and 2508 mRNAs were differently expressed. The pathway analysis demonstrated that the cell cycle, cytokinecytokine receptor interaction, chemokine signaling pathway, and phosphoinositide 3-kinase-protein kinase B signaling pathway may play important roles in HCC.Several GO terms, such as cell cycle, DNA replication,immune response, and signal transduction, were enriched in gene lists, suggesting a potential correlation with HBVrelated HCC. The upregulated large intergenic noncoding RNA ULK4P2 was physically combined with enhancer of zeste homolog 2. Therefore, the lncRNAs may participate in regulating HBV-related HCC.CONCLUSION: lncRNAs play important roles in HCC,future studies should verify whether large intergenic noncoding ULK4P2 functions by combining with enhancer of zeste homolog 2 in HCC. 展开更多
关键词 ENHANCER of ZESTE HOMOLOG 2 Hepatocellularcarcinoma LONG noncoding RNAS Microarray ulk4p2
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