BACKGROUND Studies have reported that microRNA-30c(miR-30c)has vital functions in the development and progression of multiple cancers.AIM To investigate the clinical significance and role of miR-30c in pancreatic canc...BACKGROUND Studies have reported that microRNA-30c(miR-30c)has vital functions in the development and progression of multiple cancers.AIM To investigate the clinical significance and role of miR-30c in pancreatic cancer.METHODS MiR-30c and twinfilin 1(TWF1)expression levels were analyzed in Gene Expression Omnibus datasets and validated in human pancreatic cancer by quantitative real-time polymerase chain reaction(RT-qPCR).The effects of miR-30c on pancreatic cancer cell growth,apoptosis,and cell cycle were evaluated by CCK-8 and flow cytometry assays.Furthermore,the in vivo effects were investigated using a subcutaneous xenograft experiment.Target gene prediction software and luciferase reporter assays were used to identify TWF1 as a direct target of miR-30c.RESULTS The expression of miR-30c was significantly decreased in pancreatic cancer tissues and associated with survival.Gain-and loss-of-function assays showed that miR-30c suppressed pancreatic cancer cell proliferation in vitro and in vivo.RT-qPCR,Western blot,and luciferase reporter assays showed that miR-30c directly targeted TWF1.The expression level of miR-30c was negatively correlated with TWF1 expression in pancreatic cancer tissues.Furthermore,the effects of ectopic miR-30c were rescued by TWF1 overexpression.CONCLUSION Our results identified the role of the miR-30c/TWF1 axis in pancreatic cancer progression and demonstrated that miR-30c might serve as a prognostic biomarker and therapeutic target for pancreatic cancer.展开更多
目的分析microRNA-30a(miR-30a)在慢性肾衰竭患者透析前后血清中的表达差异,评价其在评估慢性肾衰竭血液透析效果中的作用。方法选取2012年10月至2013年12月本科收治的慢性肾衰竭患者40例,分别在患者透析前后采血并获得血清样本,采用mir...目的分析microRNA-30a(miR-30a)在慢性肾衰竭患者透析前后血清中的表达差异,评价其在评估慢性肾衰竭血液透析效果中的作用。方法选取2012年10月至2013年12月本科收治的慢性肾衰竭患者40例,分别在患者透析前后采血并获得血清样本,采用mirV ana PARIS Kit提取血清样本中总RNA,利用qRT-PCR法检测miR-30a的表达,临床生化检测患者透析前后血清中肌酐(Cr)、尿素氮(Ur)及β2微球蛋白(β2-MG)的含量,表达值行曼-惠特尼U检验,工作特征曲线(ROC curve)评估miR-30a在慢性肾衰竭患者透析效果中的价值。结果 miR-30a、Ur和β2-MG在慢性肾衰竭患者透析后的表达显著低于透析前(P<0.05,P<0.01),ROC curve显示在患者透析后miR-30a的表达低于透析前0.25倍以上时患者可获得较好的透析效果。结论 miR-30a可作为一种潜在的评估慢性肾衰竭血液透析效果的生物标志物。展开更多
Background:Hepatocellular carcinoma(HCC)is one of the most prevalent human cancers with high mortality.Long non-coding RNA heart and neural crest derivatives expressed 2 anti-sense 1(HAND2-AS1)is down-regulated in sev...Background:Hepatocellular carcinoma(HCC)is one of the most prevalent human cancers with high mortality.Long non-coding RNA heart and neural crest derivatives expressed 2 anti-sense 1(HAND2-AS1)is down-regulated in several cancers including HCC,yet the precise mechanisms how HAND2-AS1 regulates cell survival in HCC remains poorly understood.Methods:The expression levels of HAND2-AS1 and miR-300 were measured using quantitative real-time PCR.The protein levels of suppressor of cytokine signaling 5(SOCS5),Bcl-2,Bax and cleaved caspase-3 were determined by Western blot.Cell viability and cell proliferation were assessed using cell counting kit-8 and clone formation assay,respectively.Cell apoptosis was detected using flow cytometry.The interactions between HAND2-AS1 and miR-300,miR-300 and SOCS5 were validated using luciferase reporter assay.Results:HAND2-AS1 was down-regulated in HCC tissues and cell lines,and the expression level of HAND2-AS1 was positively correlated to patient survival.HAND2-AS1 over-expression reduced viability and proliferation in HCC cells.Elevated HAND2-AS1 level induced apoptosis in HCC cells,accompanied with increased Bax and cleaved caspase-3 levels and decreased Bcl-2 level.We also validated that HAND2-AS1 acted as a sponge of miR-300,and there was a negative correlation between expression levels of HAND2-AS1 and miR-300 in HCC tissues.Furthermore,we found that SOCS5 was a downstream target of miR-300.In addition,miR-300 mimics abolished HAND2-AS1-mediated inhibition of cell viability and proliferation.miR-300 mimics also reversed the HAND2-AS1-induced apoptosis in HCC cells.Conclusion:lncRNA HAND2-AS1 inhibits proliferation in HCC through regulating miR-300/SOCS5 axis.展开更多
基金Supported by the National Nature Science Foundation of China,No.61802350
文摘BACKGROUND Studies have reported that microRNA-30c(miR-30c)has vital functions in the development and progression of multiple cancers.AIM To investigate the clinical significance and role of miR-30c in pancreatic cancer.METHODS MiR-30c and twinfilin 1(TWF1)expression levels were analyzed in Gene Expression Omnibus datasets and validated in human pancreatic cancer by quantitative real-time polymerase chain reaction(RT-qPCR).The effects of miR-30c on pancreatic cancer cell growth,apoptosis,and cell cycle were evaluated by CCK-8 and flow cytometry assays.Furthermore,the in vivo effects were investigated using a subcutaneous xenograft experiment.Target gene prediction software and luciferase reporter assays were used to identify TWF1 as a direct target of miR-30c.RESULTS The expression of miR-30c was significantly decreased in pancreatic cancer tissues and associated with survival.Gain-and loss-of-function assays showed that miR-30c suppressed pancreatic cancer cell proliferation in vitro and in vivo.RT-qPCR,Western blot,and luciferase reporter assays showed that miR-30c directly targeted TWF1.The expression level of miR-30c was negatively correlated with TWF1 expression in pancreatic cancer tissues.Furthermore,the effects of ectopic miR-30c were rescued by TWF1 overexpression.CONCLUSION Our results identified the role of the miR-30c/TWF1 axis in pancreatic cancer progression and demonstrated that miR-30c might serve as a prognostic biomarker and therapeutic target for pancreatic cancer.
文摘目的分析microRNA-30a(miR-30a)在慢性肾衰竭患者透析前后血清中的表达差异,评价其在评估慢性肾衰竭血液透析效果中的作用。方法选取2012年10月至2013年12月本科收治的慢性肾衰竭患者40例,分别在患者透析前后采血并获得血清样本,采用mirV ana PARIS Kit提取血清样本中总RNA,利用qRT-PCR法检测miR-30a的表达,临床生化检测患者透析前后血清中肌酐(Cr)、尿素氮(Ur)及β2微球蛋白(β2-MG)的含量,表达值行曼-惠特尼U检验,工作特征曲线(ROC curve)评估miR-30a在慢性肾衰竭患者透析效果中的价值。结果 miR-30a、Ur和β2-MG在慢性肾衰竭患者透析后的表达显著低于透析前(P<0.05,P<0.01),ROC curve显示在患者透析后miR-30a的表达低于透析前0.25倍以上时患者可获得较好的透析效果。结论 miR-30a可作为一种潜在的评估慢性肾衰竭血液透析效果的生物标志物。
文摘Background:Hepatocellular carcinoma(HCC)is one of the most prevalent human cancers with high mortality.Long non-coding RNA heart and neural crest derivatives expressed 2 anti-sense 1(HAND2-AS1)is down-regulated in several cancers including HCC,yet the precise mechanisms how HAND2-AS1 regulates cell survival in HCC remains poorly understood.Methods:The expression levels of HAND2-AS1 and miR-300 were measured using quantitative real-time PCR.The protein levels of suppressor of cytokine signaling 5(SOCS5),Bcl-2,Bax and cleaved caspase-3 were determined by Western blot.Cell viability and cell proliferation were assessed using cell counting kit-8 and clone formation assay,respectively.Cell apoptosis was detected using flow cytometry.The interactions between HAND2-AS1 and miR-300,miR-300 and SOCS5 were validated using luciferase reporter assay.Results:HAND2-AS1 was down-regulated in HCC tissues and cell lines,and the expression level of HAND2-AS1 was positively correlated to patient survival.HAND2-AS1 over-expression reduced viability and proliferation in HCC cells.Elevated HAND2-AS1 level induced apoptosis in HCC cells,accompanied with increased Bax and cleaved caspase-3 levels and decreased Bcl-2 level.We also validated that HAND2-AS1 acted as a sponge of miR-300,and there was a negative correlation between expression levels of HAND2-AS1 and miR-300 in HCC tissues.Furthermore,we found that SOCS5 was a downstream target of miR-300.In addition,miR-300 mimics abolished HAND2-AS1-mediated inhibition of cell viability and proliferation.miR-300 mimics also reversed the HAND2-AS1-induced apoptosis in HCC cells.Conclusion:lncRNA HAND2-AS1 inhibits proliferation in HCC through regulating miR-300/SOCS5 axis.
