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目的探讨敲低PRPF19之后对胰腺癌细胞增殖、迁移和侵袭能力的影响。方法利用GEPIA等数据库分析PRPF19在胰腺癌及其正常组织中的表达差异;通过Western blot和qRT-PCR检测胰腺癌细胞中PRPF19蛋白和mRNA的表达水平;小干扰RNA(siRNA)技术沉默胰腺癌细胞中PRPF19的表达,并通过Western blot和qRT-PCR验证其敲低效率;CCK-8、克隆形成以及Transwell实验检测敲低PRPF19对胰腺癌细胞增殖、克隆形成以及迁移和侵袭能力的影响。结果GEPIA分析显示,与正常胰腺组织相比,PRPF19在胰腺癌组织中高表达;与正常胰腺细胞相比,PRPF19在MIA PaCa-2、PANC-1等多种胰腺癌细胞系中高表达(P<0.05);与对照组相比,敲低PRPF19后,胰腺癌细胞的增殖速率明显下降,克隆形成数量、细胞迁移和侵袭数量均减少(P<0.05)。结论敲低PRPF19可抑制胰腺癌细胞的增殖、迁移和侵袭能力,PRPF19可能作为胰腺癌的一个癌基因发挥重要作用。 相似文献
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目的:分析内质网驻留蛋白57(ERp57)在食管鳞癌组织中的表达情况以及下调ERp57对食管癌细胞TE-1生物学功能的影响。方法:GEPIA数据库分析食管癌中ERp57的表达;通过荧光定量PCR和Western blot检测临床食管癌标本及细胞株中ERp57的表达;利用shRNA沉默TE-1细胞内ERp57后,通过CCK8检测细胞增殖、TUNEL检测细胞凋亡、划痕检测细胞迁移、Transwell检测细胞侵袭。结果:食管癌组织中ERp57的mRNA和蛋白的表达水平均高于癌旁组织(P<0.05),食管癌细胞中ERp57的mRNA及蛋白的表达高于食管上皮细胞(P<0.05)。沉默ERp57使TE-1细胞的增殖能力减弱、凋亡比例增加,并减弱了TE-1细胞的迁移及侵袭能力。结论:沉默ERp57表达能够抑制食管癌细胞TE-1的增殖、迁移、侵袭,可为食管癌研究提供理论依据。 相似文献
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[目的]探究性别决定区Y框蛋白1(sex determining region Y-box,SOX1)对宫颈癌细胞增殖、迁移和侵袭的影响。[方法]选择稳定表达SOX1基因的HeLa细胞株为实验组,同时选择稳定表达空白质粒的He La细胞株和HeLa细胞为对照组。采用二甲基偶氮唑蓝(MTT)法检测SOX1对HeLa细胞增殖的影响;通过细胞基质黏附实验、体外细胞迁移实验、体外细胞侵袭实验分别研究SOX1对HeLa细胞粘附、迁移、侵袭能力的影响;采用明胶酶谱法检测细胞内相关蛋白的水平。[结果]在研究第1天,两组的增殖能力比较差异无统计学意义(P>0.05),实验组在研究第3天(0.526±0.067)、第5天(1.169±0.148)、第7天(1.160±0.134)的增殖能力均显著性低于对照组(P<0.05)。实验组黏附率(0.754±0.041)显著性低于对照组(0.931±0.135)(P<0.05);实验组在24h(5.84±1.20)、48h(10.28±3.01)、72h(14.51±2.31)迁移距离均显著性小于对照组(P<0.05);实验组侵袭细胞的数量(120.09±10.04个)明显较对照组(215.67±6.98个)少(P<0.05)。实验组基质金属蛋白酶2(0.981±0.199)、基质金属蛋白酶9(0.536±0.033)、波形纤维蛋白(0.429±0.029)表达水平显著性低于对照组,SOX1、E钙黏附蛋白水平明显高于对照组(P<0.05)。[结论]SOX1表达水平升高,会使宫颈癌细胞的增殖、迁移和侵袭抑制,MMP2、MMP9、Vimentin蛋白表达水平降低,Ecadherin表达水平升高。 相似文献
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[目的]评价银杏叶提取物(EGb761)对神经胶质瘤U87细胞的生长与侵袭的影响,并进一步分析EGb761对U87细胞作用的分子机制。[方法]体外培养人神经胶质瘤U87细胞,给予不同浓度(0、100、200、400mg/L)银杏叶提取物干预(24h、48h、72h)后,采用CCK-8技术检测EGb761对U87细胞增殖的影响。Transwell小室和流式细胞凋亡技术分析EGb761对U87细胞侵袭和凋亡的影响;Western blot检测EGb761处理后U87细胞内NF-κB与cyclin D1、 iNOS和COX-2蛋白的表达变化。[结果]银杏叶提取物可有效抑制神经胶质瘤U87细胞的增殖和侵袭,促进细胞凋亡;Western blot提示EGb761干预的U87细胞内NF-κB与cyclin D1、 iNOS、COX-2蛋白的表达均明显下调。[结论] EGb761抑制神经胶质瘤U87细胞的生长增殖和侵袭能力,其可能是通过NF-κB信号通路而发挥抗肿瘤作用的。 相似文献
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目的:探讨微小RNA(miR)-1对食管癌细胞株EC-109生长、侵袭及迁移的影响和其相关作用调控机制。方法:采用脂质体瞬时转染技术,对体外培养的EC-109细胞转染miR-1 mimics,分别采用CCK-8法和Transwell实验检测miRNA-1对食管癌细胞增殖、侵袭及迁移能力的影响;生物信息学预测miR-1可能的靶基因,并用双荧光素酶报告基因和Western blot法验证其靶基因。结果:过表达miRNA-1后,CCK-8和Transwell实验结果显示食管癌细胞的增殖、侵袭及迁移能力显著降低(P<0.05);生物信息学分析显示DDX5可能是miR-1的靶基因;双荧光素酶报告基因结果显示miR-1与DDX5 mRNA 3' UTR相结合;Western blot结果显示高表达miR-1后,DDX5表达下降。结论:miRNA-1可能通过靶向负调控DDX5的表达抑制食管癌细胞增殖、迁移及侵袭。 相似文献
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目的:探讨miR-885-5p对胰腺癌细胞增殖、迁移和侵袭的影响,并阐明miR-885-5p和CTNNB1基因在胰腺癌细胞中的作用机制。方法:MTT、细胞划痕和Transwell实验测定各组细胞增殖、迁移与侵袭能力。双荧光素酶报告基因实验分析CTNNB1是否为miR-885-5p的靶基因。使用胰腺癌TCGA数据进行预后分析,并进行miR-885-5p与CTNNB1表达的相关性分析。结果:下调miR-885-5p明显促进胰腺癌细胞增殖、迁移与侵袭,而过表达miR-885-5p则相反。miR-885-5p可靶向CTNNB1 3' UTR并抑制其转录后表达。在下调miR-885-5p的细胞中进行回复性实验,结果表明,miR-885-5p对胰腺癌细胞增殖、迁移与侵袭的抑制作用部分依赖于CTNNB1。TCGA数据库结果显示,miR-885-5p高表达的胰腺癌患者有较好的预后,且与CTNNB1表达呈负相关。结论:miR-885-5p通过靶向CTNNB1抑制胰腺癌细胞增殖、迁移与侵袭,miR-885-5p有望成为胰腺癌治疗的新靶点。 相似文献
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LACTB, a mitochondrial protein, was ubiquitously expressed in different mammalian tissues, such as liver,
heart, and skeletal muscle. It has been shown that LACTB is downexpressed in breast cancers, and it suppresses the proliferation and promotes the apoptosis of breast cancers. However, its role in the progression
and prognosis of glioma remains unknown. In this study, we analyzed the clinicopathological features and
outcomes of LACTB expression in 98 glioma patients and investigated the effects of LACTB overexpression
on the proliferation, invasion, and angiogenesis of glioma cells in vitro. We observed a significant decrease in
LACTB expression in glioma, and downexpression of LACTB is correlated with a poor prognosis of glioma
patients. Moreover, Cox regression analysis reveals that the LACTB is an independent prognostic indicator
for glioma patients. Overexpression of LACTB could suppress the proliferation, invasion, and angiogenesis of
glioma cells. In addition, overexpression of LACTB could inhibit the expression of PCNA, MMP2, MMP9,
and VEGF. Taken together, these data indicate that LACTB may serve as a promising therapeutic target for
gliomas. 相似文献
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Yang Sun Jun-Gong Jin Wei-Yang Mi Hao-Wu Shi-Rong Zhang Qiang Meng Shi-Tao Zhang 《Oncology research》2020,28(6):683-684
Glioma is the most common and lethal malignant intracranial tumor. Long noncoding RNAs (lncRNAs) have
been identified as pivotal regulators in the tumorigenesis of glioma. However, the role of lncRNA urothelial
carcinoma-associated 1 (UCA1) in glioma genesis is still unknown. The purpose of this study was to investigate the underlying function of UCA1 on glioma genesis. The results demonstrated that UCA1 was upregulated
in glioma tissue and indicated a poor prognosis. UCA1 knockdown induced by si-UCA1 significantly suppressed the proliferative, migrative, and invasive activities of glioma cell lines (U87 and U251). Bioinformatics
analysis and luciferase reporter assay verified the complementary binding within UCA1 and miR-122 at the
3¢-UTR. Functional experiments revealed that UCA1 acted as an miR-122 “sponge” to modulate glioma cell
proliferation, migration, and invasion via downregulation of miR-122. Overall, the present study demonstrated
that lncRNA UCA1 acts as an endogenous sponge of miR-122 to promote glioma cell proliferation, migration,
and invasion, which provides a novel insight and therapeutic target in the tumorigenesis of glioma. 相似文献
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目的探讨Hes1基因对肝细胞癌细胞系Hep1-6细胞增殖、迁移与侵袭的影响。方法通过重组腺病毒载体介导Hes1基因在Hep1-6细胞系中过表达,随后测定细胞克隆形成率、增殖速率及体外迁移与侵袭能力的改变。结果Hep1-6细胞分别感染Ad-Hes1和阴性对照Ad-GFP后,感染Ad-Hes1的细胞系克隆形成数显著少于对照组(P<0.001);感染病毒6天后,CCK-8检测感染Ad-Hes1的细胞系在OD450 nm的吸光度值显著低于对照组(P<0.01);感染Ad-Hes1的细胞系24 h和48 h的划痕愈合率显著低于对照组(P<0.001);感染Ad-Hes1的细胞系在Transwell小室培养48 h后迁移进入Transwell下室的细胞数量显著低于对照组(P<0.001);感染Ad-Hes1的细胞系在铺有Matrigel基质胶的Transwell小室培养48 h后侵袭进入Transwell下室的细胞数量显著低于对照组(P<0.01)。结论Hes1有抑制Hep1-6细胞增殖、迁移与侵袭的作用。 相似文献
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目的建立稳定高表达和靶向干扰谷氨酰胺合成酶(GS)细胞株观察GS对C6胶质瘤细胞增殖、迁移和侵袭能力的影响。方法将已构建的GS- pEGFP-N3、GS-shRNA真核表达载体和空载体pEGFP-N3通过脂质体介导分别转染C6胶质瘤细胞株,G418持续筛选并用Western blot鉴定,MTS法和克隆形成实验观察GS对C6胶质瘤细胞增殖的影响,用MTS黏附实验、划痕损伤实验和transwell侵袭实验检测GS对细胞黏附、迁移和侵袭能力的影响。结果Western blot证实过表达细胞株有超量GS蛋白表达,而shRNA细胞株未检测到GS信号;GS过表达细胞增殖、克隆形成能力和侵袭性显著降低而黏附能力显著增强;shRNA细胞增殖和克隆形成能力无显著性变化,黏附能力显著降低,而侵袭性显著增强。结论成功建立GS稳定高表达和靶向干扰C6胶质瘤细胞株,并证实GS表达水平影响胶质瘤细胞的增殖、迁移和侵袭。 相似文献
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Beclin1 Overexpression Inhibitis Proliferation,Invasion and Migration of CaSki Cervical Cancer Cells 下载免费PDF全文
《Asian Pacific journal of cancer prevention》2011,12(5):1269-1273
The influence of the autophagy-related gene Beclin1 on proliferation, invasion and metastasis of the cervicalcancer CaSki cells and its possible mechanism in vitro were here targeted. After the overexpression vectorpcDNA3.1-Beclin1 and RNA interference vector pSUPER-Beclin1 were transfected into CaSki cells in vitro, stableexpression cell lines demonstration Beclin1 expression was upregulated, and VEGF and MMP-9 expression weredecreased, leading to cell arrest in the G0/G1 phase of the cell cycle. MTT assays further revealed proliferationof cells was significantly inhibited in Beclin1-overexpressing transfectant cells, with invasion and metastasisalso being inhibited in Transwell chamber assays. The present results suggest that Beclin1 inhibits invasionand metastasis of cervical cancer CaSki cells in vitro. Mechanisms probably involve Beclin1 inhibition of cellproliferation, and decreased expression of VEGF and MMP-9 proteins. 相似文献
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