BACKGROUND Competitive endogenous RNA(ceRNA)is an innovative way of gene expression modulation,which plays a crucial part in neoplasia.However,the intricacy and behavioral characteristics of the ceRNA network in hepat...BACKGROUND Competitive endogenous RNA(ceRNA)is an innovative way of gene expression modulation,which plays a crucial part in neoplasia.However,the intricacy and behavioral characteristics of the ceRNA network in hepatocellular carcinoma(HCC)remain dismal.AIM To establish a cyclin dependent kinase inhibitor 2A(CDKN2A)-related ceRNA network and recognize potential prognostic indicators for HCC.METHODS The mutation landscape of CDKN2A in HCC was first explored using the cBioPortal database.Differential expression analysis was implemented between CDKN2Ahigh and CDKN2Alow expression HCC samples.The targeted microRNAs were predicted by lncBasev3.0,and the targeted mRNAs were predicted by miRDB,and Targetscan database.The univariate and multivariate analysis were utilized to identify independent prognostic indicators.RESULTS CDKN2A was frequently mutated and deleted in HCC.The single-cell RNA-sequencing analysis revealed that CDKN2A participated in cell cycle pathways.The CDKN2A-related ceRNA network-growth arrest specific 5(GAS5)/miR-25-3p/SRY-box transcription factor 11(SOX11)was successfully established.GAS5 was recognized as an independent prognostic biomarker,whose overexpression was correlated with a poor prognosis in HCC patients.The association between GAS5 expression and methylation,immune infilt-ration was explored.Besides,traditional Chinese medicine effective components targeting GAS5 were obtained.CONCLUSION This CDKN2A-related ceRNA network provides innovative insights into the molecular mechanism of HCC formation and progression.Moreover,GAS5 might be a significant prognostic biomarker and therapeutic target in HCC.展开更多
目的通过分析癌症基因组图谱(the cancer genome atlas,TCGA)数据库构建三阴性乳腺癌(triple negative breast cancer,TNBC)预后相关的竞争性内源性核糖核酸(competitive endogenous RNA,ceRNA)调控网络。方法从TCGA数据库中下载TNBC ln...目的通过分析癌症基因组图谱(the cancer genome atlas,TCGA)数据库构建三阴性乳腺癌(triple negative breast cancer,TNBC)预后相关的竞争性内源性核糖核酸(competitive endogenous RNA,ceRNA)调控网络。方法从TCGA数据库中下载TNBC lncRNA表达RNAseq数据,对TNBC患者的mRNA,miRNA和lncRNA进行差异表达分析,并进一步行生存分析,得到与乳腺癌有明显差异表达同时也对生存有相关性的mRNA,miRNA和lncRNA。同时构建lncRNA-miRNA-mRNA相关ceRNA调控网,再对生存相关lncRNA所相关的mRNA进一步功能富集和注释,并构建蛋白质互作网络最终用关键基因通过人类蛋白质图谱(the human protein atlas,HPA)数据库进行验证。结果在TCGA中共找到TNBC差异表达mRNA 2331个、差异miRNA 100个和差异lncRNA 1269个。ceRNA调控网中的mRNA在细胞黏附、唾液分泌和血小板活化、用于IgA产生的肠道免疫网络、补体和凝血级联反应等信号通路中明显富集。生存分析中,1个差异mRNA(NMUR1),1个差异表达miRNA(hsa-miR-6832-3p),2个差异表达的lncRNA(AC104809,LINC01297)的表达量均与TNBC患者的预后相关,差异具有统计学意义(P<0.05)。最后利用HPA数据库对NMUR1蛋白水平和生存分析验证,NMUR1的高表达患者的总生存期显著高于NMUR1低表达组,差异有统计学意义(P<0.05)。结论成功构建了促进TNBC发生发展的lncRNA-miRNA-mRNA调控网络,筛选得到生存相关的差异mRNA,miRNA和lncRNA为TNBC发病机制的研究和诊疗生物标志物的探索提供参考依据。展开更多
Recent studies have showed that RNAs regulate each other with micro RNA(mi RNA) response elements(MREs) and this mechanism is known as "competing endogenous RNA(ce RNA)" hypothesis. Long noncoding RNAs(lnc R...Recent studies have showed that RNAs regulate each other with micro RNA(mi RNA) response elements(MREs) and this mechanism is known as "competing endogenous RNA(ce RNA)" hypothesis. Long noncoding RNAs(lnc RNAs) are supposed to play important roles in cancer. Compelling evidence suggests that lnc RNAs can interact with mi RNAs and regulate the expression of mi RNAs as ce RNAs. Several lnc RNAs such as H19, HOTAIR and MEG3 have been found to be associated with mi RNAs in gastric cancer(GC), generating regulatory crosstalk across the transcriptome. These MRE sharing elements implicated in the ce RNA networks(ce RNETs) are able to regulate m RNA expression. The ce RNA regulatory networks including m RNAs, mi RNAs, lnc RNAs and circular RNAs may play critical roles in tumorigenesis, and the perturbations of ce RNETs may contribute to the pathogenesis of GC.展开更多
基金Supported by the Zhejiang Province Major Science and Technology Project for Medicine and Health,No.WKJ-ZJ-2329.
文摘BACKGROUND Competitive endogenous RNA(ceRNA)is an innovative way of gene expression modulation,which plays a crucial part in neoplasia.However,the intricacy and behavioral characteristics of the ceRNA network in hepatocellular carcinoma(HCC)remain dismal.AIM To establish a cyclin dependent kinase inhibitor 2A(CDKN2A)-related ceRNA network and recognize potential prognostic indicators for HCC.METHODS The mutation landscape of CDKN2A in HCC was first explored using the cBioPortal database.Differential expression analysis was implemented between CDKN2Ahigh and CDKN2Alow expression HCC samples.The targeted microRNAs were predicted by lncBasev3.0,and the targeted mRNAs were predicted by miRDB,and Targetscan database.The univariate and multivariate analysis were utilized to identify independent prognostic indicators.RESULTS CDKN2A was frequently mutated and deleted in HCC.The single-cell RNA-sequencing analysis revealed that CDKN2A participated in cell cycle pathways.The CDKN2A-related ceRNA network-growth arrest specific 5(GAS5)/miR-25-3p/SRY-box transcription factor 11(SOX11)was successfully established.GAS5 was recognized as an independent prognostic biomarker,whose overexpression was correlated with a poor prognosis in HCC patients.The association between GAS5 expression and methylation,immune infilt-ration was explored.Besides,traditional Chinese medicine effective components targeting GAS5 were obtained.CONCLUSION This CDKN2A-related ceRNA network provides innovative insights into the molecular mechanism of HCC formation and progression.Moreover,GAS5 might be a significant prognostic biomarker and therapeutic target in HCC.
文摘目的通过分析癌症基因组图谱(the cancer genome atlas,TCGA)数据库构建三阴性乳腺癌(triple negative breast cancer,TNBC)预后相关的竞争性内源性核糖核酸(competitive endogenous RNA,ceRNA)调控网络。方法从TCGA数据库中下载TNBC lncRNA表达RNAseq数据,对TNBC患者的mRNA,miRNA和lncRNA进行差异表达分析,并进一步行生存分析,得到与乳腺癌有明显差异表达同时也对生存有相关性的mRNA,miRNA和lncRNA。同时构建lncRNA-miRNA-mRNA相关ceRNA调控网,再对生存相关lncRNA所相关的mRNA进一步功能富集和注释,并构建蛋白质互作网络最终用关键基因通过人类蛋白质图谱(the human protein atlas,HPA)数据库进行验证。结果在TCGA中共找到TNBC差异表达mRNA 2331个、差异miRNA 100个和差异lncRNA 1269个。ceRNA调控网中的mRNA在细胞黏附、唾液分泌和血小板活化、用于IgA产生的肠道免疫网络、补体和凝血级联反应等信号通路中明显富集。生存分析中,1个差异mRNA(NMUR1),1个差异表达miRNA(hsa-miR-6832-3p),2个差异表达的lncRNA(AC104809,LINC01297)的表达量均与TNBC患者的预后相关,差异具有统计学意义(P<0.05)。最后利用HPA数据库对NMUR1蛋白水平和生存分析验证,NMUR1的高表达患者的总生存期显著高于NMUR1低表达组,差异有统计学意义(P<0.05)。结论成功构建了促进TNBC发生发展的lncRNA-miRNA-mRNA调控网络,筛选得到生存相关的差异mRNA,miRNA和lncRNA为TNBC发病机制的研究和诊疗生物标志物的探索提供参考依据。
基金Supported by National Nature Science Foundation of China,No.81373097
文摘Recent studies have showed that RNAs regulate each other with micro RNA(mi RNA) response elements(MREs) and this mechanism is known as "competing endogenous RNA(ce RNA)" hypothesis. Long noncoding RNAs(lnc RNAs) are supposed to play important roles in cancer. Compelling evidence suggests that lnc RNAs can interact with mi RNAs and regulate the expression of mi RNAs as ce RNAs. Several lnc RNAs such as H19, HOTAIR and MEG3 have been found to be associated with mi RNAs in gastric cancer(GC), generating regulatory crosstalk across the transcriptome. These MRE sharing elements implicated in the ce RNA networks(ce RNETs) are able to regulate m RNA expression. The ce RNA regulatory networks including m RNAs, mi RNAs, lnc RNAs and circular RNAs may play critical roles in tumorigenesis, and the perturbations of ce RNETs may contribute to the pathogenesis of GC.
