Objective This study aimed to examine the role of long non-coding RNA PCED1B antisense RNA 1(PCED1B-AS1)in the development of hepatocellular carcinoma(HCC).Methods A total of 62 pairs of HCC tissues and adjacent non-t...Objective This study aimed to examine the role of long non-coding RNA PCED1B antisense RNA 1(PCED1B-AS1)in the development of hepatocellular carcinoma(HCC).Methods A total of 62 pairs of HCC tissues and adjacent non-tumor tissues were obtained from 62 HCC patients.The interactions of PCED1B-AS1 and microRNA-34a(miR-34a)were detected by dual luciferase activity assay and RNA pull-down assay.The RNA expression levels of PCED1B-AS1,miR-34a and CD44 were detected by RT-qPCR,and the protein expression level of CD44 was determined by Western blotting.The cell proliferation was detected by cell proliferation assay,and the cell invasion and migration by transwell invasion assay.The HCC tumor growth after PCED1B-AS1 was downregulated was determined by in vivo animal study.Results PCED1B-AS1 was highly expressed in HCC tissues,which was associated with poor survival of HCC patients.Furthermore,PCED1B-AS1 interacted with miR-34a in HCC cells,but they did not regulate the expression of each other.Additionally,PCED1B-AS1 increased the expression level of CD44,which was targeted by miR-34a.The cell proliferation and invasion assay revealed that miR-34a inhibited the proliferation and invasion of HCC in vitro,while CD44 exhibited the opposite effects.Furthermore,PCED1B-AS1 suppressed the role of miR-34a.Moreover,the knockdown of PCED1B-AS1 repressed the HCC tumor growth in nude mice in vivo.Conclusion PCED1B-AS1 may play an oncogenic role by regulating the miR-34a/CD44 axis in HCC.展开更多
基金supported by the Medical Science and Technology Research Foundation of Guangdong Province(No.A2020559).
文摘Objective This study aimed to examine the role of long non-coding RNA PCED1B antisense RNA 1(PCED1B-AS1)in the development of hepatocellular carcinoma(HCC).Methods A total of 62 pairs of HCC tissues and adjacent non-tumor tissues were obtained from 62 HCC patients.The interactions of PCED1B-AS1 and microRNA-34a(miR-34a)were detected by dual luciferase activity assay and RNA pull-down assay.The RNA expression levels of PCED1B-AS1,miR-34a and CD44 were detected by RT-qPCR,and the protein expression level of CD44 was determined by Western blotting.The cell proliferation was detected by cell proliferation assay,and the cell invasion and migration by transwell invasion assay.The HCC tumor growth after PCED1B-AS1 was downregulated was determined by in vivo animal study.Results PCED1B-AS1 was highly expressed in HCC tissues,which was associated with poor survival of HCC patients.Furthermore,PCED1B-AS1 interacted with miR-34a in HCC cells,but they did not regulate the expression of each other.Additionally,PCED1B-AS1 increased the expression level of CD44,which was targeted by miR-34a.The cell proliferation and invasion assay revealed that miR-34a inhibited the proliferation and invasion of HCC in vitro,while CD44 exhibited the opposite effects.Furthermore,PCED1B-AS1 suppressed the role of miR-34a.Moreover,the knockdown of PCED1B-AS1 repressed the HCC tumor growth in nude mice in vivo.Conclusion PCED1B-AS1 may play an oncogenic role by regulating the miR-34a/CD44 axis in HCC.
文摘目的 探究蛋白磷酸酶2A癌性抑制因子(CIP2A)和CD44v6在尖锐湿疣(CA)患者皮损组织中的表达,分析二者与CA患者HPV基因型分布及其预后的相关性。方法 选取本院2020年4月至2023年4月收治的CA患者100例作为研究组,根据预后情况将患者分为预后良好组和不良组,收集术中保留的皮损组织;另选取本院同期行外阴整形或包皮环切术者100例作为对照组,收集切下的外阴组织或正常包皮组织。实时荧光定量PCR法检测组织标本中的CIP2A、CD44v6 mRNA表达水平。比较研究组与对照组、不同HPV分型组、预后良好组与预后不良组中CIP2A、CD44v6 mRNA的表达水平,分析CA组织中CIP2A、CD44v6的表达与临床特征的关系,采用多因素COX回归分析CA患者预后的影响因素;绘制ROC曲线分析CIP2A、CD44v6对CA患者预后不良的预测价值。结果 研究组CIP2A、CD44v6 mRNA的表达水平显著高于对照组(CIP2A:2.19±0.40 vs 1.01±0.24,t=25.24,P<0.05;CD44v6:1.75±0.33 vs 1.02±0.22,t=18.41,P<0.05)。低危组、高危组和混合组CIP2A、CD44v6 mRNA表达水平均依次升高(均P<0.05)。预后不良组CIP2A、CD44v6 mRNA表达水平显著高于预后良好组(CIP2A:3.58±0.62 vs 1.62±0.31,t=21.05,P<0.05;CD44v6:2.57±0.49 vs 1.42±0.26,t=15.26,P<0.05)。CIP2A、CD44v6的表达与疣体数目和直径有关(均P<0.05)。多因素COX回归分析结果显示,CIP2A、CD44v6的表达以及疣体数目、直径是影响CA患者预后的危险因素(P<0.05)。ROC曲线显示,CIP2A预测CA患者预后不良的AUC为0.866,CD44v6的AUC为0.860,二者联合的AUC为0.928,二者联合优于各自单独预测(Z_(联合vs CIP2A)=2.72、Z_(联合vs CD44v6)=2.73,P均<0.05)。结论 CA患者组织中CIP2A、CD44v6的表达水平显著升高,二者均与HPV基因型分布及其预后有关。CIP2A和CD44v6联合可提高对CA患者预后预测的准确性。
