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Long non-coding RNAs with essential roles in neurodegenerative disorders
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作者 Wandi Xiong Lin Lu Jiali Li 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第6期1212-1220,共9页
Recently,with the advent of high-resolution and high-throughput sequencing technologies,an increasing number of long non-coding RNAs(lncRNAs)have been found to be involved in the regulation of neuronal function in the... Recently,with the advent of high-resolution and high-throughput sequencing technologies,an increasing number of long non-coding RNAs(lncRNAs)have been found to be involved in the regulation of neuronal function in the central nervous system with specific spatiotemporal patterns,across different neurodegenerative diseases.However,the underlying mechanisms of lncRNAs during neurodegeneration remain poorly understood.This review provides an overview of the current knowledge of the biology of lncRNAs and focuses on introducing the latest identified roles,regulatory mechanisms,and research status of lncRNAs in Alzheimer's disease,Parkinson's disease,Huntington's disease,and amyotrophic lateral sclerosis.Finally,this review discusses the potential values of lncRNAs as diagnostic biomarkers and therapeutic targets for neurodegenerative diseases,hoping to provide broader implications for developing effective treatments. 展开更多
关键词 Alzheimer's disease amyotrophic lateral sclerosis BIOMARKER Huntington's disease long non-coding rnas neurodegenerative diseases Parkinson's disease THERAPY transcriptional regulation translational regulation
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Role of long non-coding RNAs in non-alcoholic fatty liver disease
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作者 Anju Mullath Murali Krishna 《World Journal of Meta-Analysis》 2024年第3期1-5,共5页
Non-alcoholic fatty liver disease(NAFLD)is emerging as a common cause of chronic liver disease in children and adults.NAFLD can progress to steatohepa-titis and potentially even hepatocellular carcinoma.Early identifi... Non-alcoholic fatty liver disease(NAFLD)is emerging as a common cause of chronic liver disease in children and adults.NAFLD can progress to steatohepa-titis and potentially even hepatocellular carcinoma.Early identification of pati-ents at risk for progressive disease is crucial for managing NAFLD.Recent studies have identified long noncoding RNAs(lncRNAs),circular RNAs,and microRNAs as playing important roles in the pathogenesis of NAFLD.These noncoding RNAs are involved in modulating several metabolic pathways such as hepatic glucose and lipid metabolism,oxidative stress,and even carcinogenesis.Elevated levels of lncARSR and lncRNA nuclear-enriched abundant transcript 1 have been found in patients with NAFLD.In addition,lncRNAs such as PRYP4-3 and RP11-128N14.5 can distinguish patients with NAFLD from healthy indi-viduals.Increased MEG3 expression has been observed in both NAFLD and non-alcoholic steatohepatitis,suggesting that it may help predict patients at risk for disease progression.With advances in transcriptomics,we may discover additional targets to help in the identification and prognostication of NAFLD. 展开更多
关键词 long noncoding rna Non-alcoholic fatty liver disease Plasmacytoma variant translocation 1 Nuclear-enriched abundant transcript 1 Muscle-and adiposeassociated long intergenic non-coding rna H19
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EGFR突变NSCLC组织LncRNA TCF7L2表达及临床病理特征和预后分析
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作者 董跃华 王贵刚 +3 位作者 杨燕君 魏玉磊 高永山 姜伟华 《青岛大学学报(医学版)》 CAS 2024年第3期403-406,共4页
目的 探究长链非编码RNA(LncRNA)转录因子7类似物2(TCF7L2)在表皮生长因子受体基因(EGFR)突变的非小细胞肺癌(NSCLC)组织表达及其与病人临床病理特征和预后相关性。方法 选取2019年3月—2021年6月河北北方学院附属第一医院治疗的EGFR突... 目的 探究长链非编码RNA(LncRNA)转录因子7类似物2(TCF7L2)在表皮生长因子受体基因(EGFR)突变的非小细胞肺癌(NSCLC)组织表达及其与病人临床病理特征和预后相关性。方法 选取2019年3月—2021年6月河北北方学院附属第一医院治疗的EGFR突变NSCLC病人104例为研究对象,分别取其癌组织和癌旁组织应用逆转录PCR(RT-PCR)检测LncRNA TCF7L2的表达,比较不同组织TCF7L2表达及其与临床病理特征和预后的相关性。结果 RT-PCR检测结果显示,癌组织中LncRNA TCF7L2表达量显著高于癌旁组织(t=12.410,P<0.05)。与LncRNA TCF7L2低表达病人比较,高表达者发生淋巴结转移更多、肿瘤体积更大(χ^(2)=4.579、7.762,P<0.05);LncRNA TCF7L2高表达病人6、9和12个月的生存率较低,但差异均无统计学意义(P>0.05)。结论 LncRNA TCF7L2在EGFR突变NSCLC病人癌组织表达高于癌旁组织,且TCF7L2高表达病人的淋巴结转移风险较高、肿瘤体积较大,其生存率可能较低。 展开更多
关键词 非小细胞肺 rna 未翻译 转录因子7样2蛋白 基因 ERBB-1 病理学 临床 预后
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Effects of long non-coding RNA myocardial infarction-associated transcript on retinal neovascularization in a newborn mouse model of oxygen-induced retinopathy 被引量:7
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作者 Yu Di Yue Wang +1 位作者 Xue Wang Qing-Zhu Nie 《Neural Regeneration Research》 SCIE CAS CSCD 2021年第9期1877-1881,共5页
Whether long non-coding RNA myocardial infarction-associated transcript is involved in oxygen-induced retinopathy remains poorly understood. To validate this hypothesis, we established a newborn mouse model of oxygen-... Whether long non-coding RNA myocardial infarction-associated transcript is involved in oxygen-induced retinopathy remains poorly understood. To validate this hypothesis, we established a newborn mouse model of oxygen-induced retinopathy by feeding in an oxygen concentration of 75 ± 2% from postnatal day 8 to postnatal day 12, followed by in normal air. On postnatal day 11, the mice were injected with the myocardial infarction-associated transcript siRNA plasmid via the vitreous cavity to knockdown long non-coding RNA myocardial infarction-associated transcript. Myocardial infarction-associated transcript siRNA transcription significantly inhibited myocardial infarctionassociated transcript mRNA expression, reduced the phosphatidylinosital-3-kinase, phosphorylated Akt and vascular endothelial growth factor immunopositivities, protein and mRNA expression, and alleviated the pathological damage to the retina of oxygen-induced retinopathy mouse models. These findings suggest that myocardial infarction-associated transcript is likely involved in the retinal neovascularization in retinopathy of prematurity and that inhibition of myocardial infarction-associated transcript can downregulate phosphatidylinosital-3-kinase, phosphorylated Akt and vascular endothelial growth factor expression levels and inhibit neovascularization. This study was approved by the Animal Ethics Committee of Shengjing Hospital of China Medical University, China(approval No. 2016 PS074 K) on February 25, 2016. 展开更多
关键词 long non-coding rna myocardial infarction-associated transcript NEOVASCULARIZATION NEUROVASCULAR PREMATURITY retinopathy vascular development vascular endothelial growth factor
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Expression of long non-coding RNAs in complete transection spinal cord injury: a transcriptomic analysis 被引量:8
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作者 Lu Ding Wen-Jin Fu +5 位作者 Hong-Yan Di Xiao-Min Zhang Yu-Tian Lei Kang-Zhen Chen Tao Wang Hong-Fu Wu 《Neural Regeneration Research》 SCIE CAS CSCD 2020年第8期1560-1567,共8页
Long non-coding RNAs(lncRNAs)are abundantly expressed in the central nervous system and exert a critical role in gene regulation via multiple biological processes.To uncover the functional significance and molecular m... Long non-coding RNAs(lncRNAs)are abundantly expressed in the central nervous system and exert a critical role in gene regulation via multiple biological processes.To uncover the functional significance and molecular mechanisms of lncRNAs in spinal cord injury(SCI),the expression signatures of lncRNAs were profiled using RNA sequencing(RNA-seq)technology in a Sprague-Dawley rat model of the 10th thoracic vertebra complete transection SCI.Results showed that 116 of 14,802 detected lncRNAs were differentially expressed,among which 16—including eight up-regulated(H19,Vof16,Hmox2-ps1,LOC100910973,Ybx1-ps3,Nnat,Gcgr,LOC680254)and eight down-regulated(Rmrp,Terc,Ngrn,Ppp2r2b,Cox6a2,Rpl37a-ps1,LOC360231,Rpph1)—demonstrated fold changes>2 in response to transection SCI.A subset of these RNA-seq results was validated by quantitative real-time PCR.The levels of 821 mRNAs were also significantly altered post-SCI;592 mRNAs were up-regulated and 229 mRNAs were down-regulated by more than 2-fold.Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)analyses showed that differentially expressed mRNAs were related to GO biological processes and molecular functions such as injury and inflammation response,wound repair,and apoptosis,and were significantly enriched in 15 KEGG pathways,including cell phagocytosis,tumor necrosis factor alpha pathway,and leukocyte migration.Our results reveal the expression profiles of lncRNAs and mRNAs in the rat spinal cord of a complete transection model,and these differentially expressed lncRNAs and mRNAs represent potential novel targets for SCI treatment.We suggest that lncRNAs may play an important role in the early immuno-inflammatory response after spinal cord injury.This study was approved by the Administration Committee of Experimental Animals,Guangdong Province,China. 展开更多
关键词 cell apotosis complete transection injury high throughput sequencing inflammation ischemia related factor vof-16 long non-coding rna secondary damage spinal cord TNF signaling transcriptOMES
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脑胶质瘤组织lncRNA SOX21-AS1、miR-875-5p表达及其与患者预后的关系
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作者 方丹东 程岗 +4 位作者 黄伟 刘晓楠 毛尖 侯保森 刘十岷 《检验医学》 CAS 2024年第3期209-214,共6页
目的探讨脑胶质瘤患者癌组织长链非编码RNA(lncRNA)SRY-box转录因子21反义RNA 1(SOX21-AS1)、miR-875-5p表达及其与患者预后的关系。方法选取2014年7月—2018年8月三门峡市中心医院脑胶质瘤患者77例(胶质瘤组),以颅脑损伤患者50例作为... 目的探讨脑胶质瘤患者癌组织长链非编码RNA(lncRNA)SRY-box转录因子21反义RNA 1(SOX21-AS1)、miR-875-5p表达及其与患者预后的关系。方法选取2014年7月—2018年8月三门峡市中心医院脑胶质瘤患者77例(胶质瘤组),以颅脑损伤患者50例作为对照组。收集2个组经手术切除的脑胶质瘤组织和正常脑组织,测定组织中lncRNA SOX21-AS1、miR-875-5p相对表达量。采用Pearson相关分析评估lncRNA SOX21-AS1和miR-875-5p的相关性。采用Kaplan-Meier生存曲线分析脑胶质瘤患者的预后情况。采用Cox回归分析评估脑胶质瘤患者预后的影响因素。结果胶质瘤组lncRNA SOX21-AS1相对表达量高于对照组(P<0.001),miR-875-5p相对表达量低于对照组(P<0.001)。不同世界卫生组织(WHO)分级的脑胶质瘤患者lncRNA SOX21-AS1、miR-875-5p相对表达量差异有统计学意义(P<0.05)。Pearson相关分析结果显示,脑胶质瘤组织中lncRNA SOX21-AS1相对表达量与miR-875-5p相对表达量呈负相关(r=-0.554,P<0.001)。Kaplan-Meier生存曲线分析结果显示,lncRNA SOX21-AS1低表达组、miR-875-5p高表达组累积生存率分别高于lncRNA SOX21-AS1高表达组、miR-875-5p低表达组(P<0.05)。多因素Cox回归分析结果显示,WHO分级和lncRNA SOX21-AS1均是脑胶质瘤患者不良预后的独立危险因素[风险比(HR)值分别为2.266、2.390,95%可信区间(CI)分别为1.452~3.536、1.496~3.818,P<0.001]。结论lncRNA SOX21-AS1和miR-875-5p均与脑胶质瘤患者预后密切相关,或可作为评估脑胶质瘤患者预后的有效指标。 展开更多
关键词 长链非编码rna SRY-box转录因子21反义rna 1 miR-875-5p 脑胶质瘤 预后
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Exosome-transported IncRNA H19 regulates insulin-like growth factor-1 via the H19/let-7a/insulin-like growth factor-1 receptor axis in ischemic stroke 被引量:3
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作者 Jue Wang Bin Cao +2 位作者 Yan Gao Yu-Hua Chen Juan Feng 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第6期1316-1320,共5页
LncRNA(long non-coding RNA) H19 is a transcript of the H19 gene that is expressed during embryogenesis.We previously discove red a role for circular lncRNA H19 in the onset and prognosis of cerebral ischemic stroke.In... LncRNA(long non-coding RNA) H19 is a transcript of the H19 gene that is expressed during embryogenesis.We previously discove red a role for circular lncRNA H19 in the onset and prognosis of cerebral ischemic stroke.In this study,we used serum from patients with ischemic stroke,and mouse and cell culture models to elucidate the roles of plasma and neuronal exosomes in the regulatory effect of lncRNA H19 on insulin-like growth factor-1 and its mechanism in ischemic stroke,using western blotting,quantitative real-time polymerase chain reaction,and enzyme-linked immunosorbent assays.Plasma exosomal IncRNA H19 was negatively associated with blood levels of insulin-like growth factor-1 in samples from patients with cerebral ischemic stroke.In a mouse model,levels of exosomal IncRNA H19 were positively correlated with plasma and cerebral lncRNA H19.In a cell co-culture model,we confirmed that IncRNA H19 was transported from neuro ns to astrocytes by exosomes to induce downregulation of insulin-like growth factor-1 through the H19/let-7 a/insulin-like growth factor-1 receptor axis.This study provides the first evidence for the transpo rtation of IncRNA H19 by exosomes and the relationship between IncRNA H19 and insulinlike growth factor-1. 展开更多
关键词 cerebral ischemia EXOSOMES H19 insulin-like growth factor-1 insulin-like growth factor 1 receptor ischemic stroke long non-coding rna
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LncRNA AFAP1-AS1 exhibits oncogenic characteristics and promotes gemcitabine-resistance of cervical cancer cells through miR-7-5p/EGFR axis
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作者 CHAOQUN WANG TING ZHANG CHAOHE ZHANG 《Oncology Research》 SCIE 2024年第12期1867-1879,共13页
Background:Drug resistance is the main factor contributing to cancer recurrence and poor prognosis.Exploration of drug resistance-related mechanisms and effective therapeutic targets are the aim of molecular targeted ... Background:Drug resistance is the main factor contributing to cancer recurrence and poor prognosis.Exploration of drug resistance-related mechanisms and effective therapeutic targets are the aim of molecular targeted therapy.In our study,the role of long non-coding RNA(lncRNA)AFAP1-AS1 in gemcitabine resistance and related mechanisms were explored in cervical cancer cells.Methods:Gemcitabine-resistant cervical cancer cell lines HT-3-Gem and SW756-Gem were constructed using the gemcitabine concentration gradient method.The overall survival rates and recurrence-free survival rates were evaluated by Kaplan-Meier analysis.The interaction was verified through a Dual-luciferase reporter gene assay and a Biotinylated RNA pull-down assay.Cell proliferation ability was assessed through methyl-thiazolyl-tetrazolium(MTT),soft agar,and colony formation experiments.Cell cycle and apoptosis were detected byflow cytometry.Results:Up-regulation of AFAP1-AS1 in cervical cancer predicted a poor prognosis.Besides,patients in the gemcitabine-resistance group had higher levels of AFAP1-AS1 than the gemcitabine-sensitive group.AFAP1-AS1 promoted tumor growth and induced gemcitabine tolerance of cervical cancer cells.In addition,AFAP1-AS1 mediated epidermal growth factor receptor(EGFR)expression by serving as a molecular sponge for microRNA-7a-5p(miR-7-5p).This present study also proved that the knockdown of EGFR or overexpression of miR-7a-5p abolished the accelerative role of AFAP1-AS1 overexpression in cancer progression and gemcitabine tolerance.Conclusions:In general,the AFAP1-AS1/miR-7-5p/EGFR axis was tightly related to the progression and gemcitabine tolerance of cervical cancer,providing potential targets for the management of cervical cancer. 展开更多
关键词 long non-coding rna(lncrna)AFAP1-AS1 miR-7-5p Epidermal growth factor receptor(EGFR) Gemcitabine-resistance Cervical cancer
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Long non-coding RNA MEG3 regulates autophagy after cerebral ischemia/reperfusion injury 被引量:4
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作者 Tian-Hao Li Hong-Wei Sun +5 位作者 Lai-Jun Song Bo Yang Peng Zhang Dong-Ming Yan Xian-Zhi Liu Yu-Ru Luo 《Neural Regeneration Research》 SCIE CAS CSCD 2022年第4期824-831,共8页
Severe cerebral ischemia/reperfusion injury has been shown to induce high-level autophagy and neuronal death.Therefore,it is extremely important to search for a target that inhibits autophagy activation.Long non-codin... Severe cerebral ischemia/reperfusion injury has been shown to induce high-level autophagy and neuronal death.Therefore,it is extremely important to search for a target that inhibits autophagy activation.Long non-coding RNA MEG3 participates in autophagy.However,it remains unclear whether it can be targeted to regulate cerebral ischemia/reperfusion injury.Our results revealed that in oxygen and glucose deprivation/reoxygenation-treated HT22 cells,MEG3 expression was obviously upregulated,and autophagy was increased,while knockdown of MEG3 expression greatly reduced autophagy.Furthermore,MEG3 bound mi R-181 c-5 p and inhibited its expression,while mi R-181 c-5 p bound to autophagy-related gene ATG7 and inhibited its expression.Further experiments revealed that mir-181 c-5 p overexpression reversed the effect of MEG3 on autophagy and ATG7 expression in HT22 cells subjected to oxygen and glucose deprivation/reoxygenation.In vivo experiments revealed that MEG3 knockdown suppressed autophagy,infarct volume and behavioral deficits in cerebral ischemia/reperfusion mice.These findings suggest that MEG3 knockdown inhibited autophagy and alleviated cerebral ischemia/reperfusion injury through the mi R-181 c-5 p/ATG7 signaling pathway.Therefore,MEG3 can be considered as an intervention target for the treatment of cerebral ischemia/reperfusion injury.This study was approved by the Animal Ethics Committee of the First Affiliated Hospital of Zhengzhou University,China(approval No.XF20190538)on January 4,2019. 展开更多
关键词 ATG7 AUTOPHAGY cerebral infarction cerebral ischemia/reperfusion injury long non-coding rna miR-181c-5p NEURON oxygen and glucose deprivation/reoxygenation
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Regulatory mechanisms of long non-coding RNAs
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作者 Zhigang Luo 《Oncology and Translational Medicine》 2019年第3期147-151,共5页
Long non-coding RNAs(lncRNAs) belong to a large and complex family of RNAs, which play many important roles in regulating gene expression. However, the mechanism underlying the dynamic expression of lncRNAs is still n... Long non-coding RNAs(lncRNAs) belong to a large and complex family of RNAs, which play many important roles in regulating gene expression. However, the mechanism underlying the dynamic expression of lncRNAs is still not very clear. In order to identify lncRNAs and clarify the mechanisms involved, we collected basic information and highlighted the mechanisms underlying lncRNA expression and regulation. Overall, lncRNAs are regulated by several similar transcription factors and protein-coding genes. Epigenetic modification(DNA methylation and histone modification) can also downregulate lncRNA levels in tissues and cells. Moreover, lncRNAs may be degraded or cleaved via interaction with miRNAs and miRNAassociated protein complexes. Furthermore, alternative RNA splicing(AS) may play a significant role in the post-transcriptional regulation of lncRNAs. 展开更多
关键词 long non-coding rnas(lncrnas) regulatory mechanisms transcriptionAL factors CHROMATIN state alternative SPLICING rna editing microrna(mirna)
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血浆lncRNA-SNHG20和lncRNA-TCF7表达对非小细胞肺癌的诊断价值研究 被引量:2
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作者 苏芳 石志浩 +2 位作者 赵静 陈萍 李坚 《实用临床医药杂志》 CAS 2023年第7期35-39,92,共6页
目的 研究血浆中长链非编码RNA小核仁RNA宿主基因20(lncRNA-SNHG20)和长链非编码RNA转录因子7(lncRNA-TCF7)表达对非小细胞肺癌(NSCLC)的临床诊断价值。方法 采用实时荧光定量聚合酶链反应(qRT-PCR)检测NSCLC患者及良性肺病患者血浆中ln... 目的 研究血浆中长链非编码RNA小核仁RNA宿主基因20(lncRNA-SNHG20)和长链非编码RNA转录因子7(lncRNA-TCF7)表达对非小细胞肺癌(NSCLC)的临床诊断价值。方法 采用实时荧光定量聚合酶链反应(qRT-PCR)检测NSCLC患者及良性肺病患者血浆中lncRNA-SNHG20和lncRNA-TCF7的相对表达水平。采用受试者工作特征(ROC)曲线评估两者单独及联合诊断NSCLC的效能,并与常规的肿瘤标志物癌胚抗原(CEA)及细胞角蛋白19(Cyfra21-1)比较。结果 在NSCLC患者血浆中,lncRNA-TCF7的相对表达和lncRNA-SNHG20的相对表达高于良性肺病组,差异有统计学意义(P<0.05)。lncRNA-TCF7、lncRNA-SNHG20相对表达与性别、年龄、吸烟史、组织病理分型、TNM分期无关(P>0.05)。ROC曲线分析显示,血浆中lncRNA-SNHG20的曲线下面积(AUC)大于CEA及Cyfra21-1,lncRNA-TCF7的AUC介于CEA及Cyfra21-1之间。lncRNA-SNHG20联合lncRNA-TCF7诊断的准确性高于单独检测。结论 lncRNA-SNHG20和lncRNA-TCF7表达在NSCLC患者及良性肺病患者血浆中存在显著差异,检测两者表达水平可能对NSCLC的诊断具有临床意义。 展开更多
关键词 非小细胞肺癌 长链非编码rna小核仁rna宿主基因20 长链非编码rna转录因子7 诊断
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缺血性疾病患者血清lncRNA PVT1和FOXM1表达水平及联合心脏磁共振延迟强化成像与预后的关系
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作者 尹晓翔 赵森 +2 位作者 郭颖 刘梦雯 庄琰 《中国CT和MRI杂志》 2024年第3期73-75,共3页
目的 探讨缺血性疾病患者血清长链非编码RNA浆细胞瘤转化迁移基因1(lncRNA PVT1)和叉头框转录因子M1(FOX M1)表达水平及联合心脏钆对比剂延迟增强磁共振成像(LGE-MRI)与预后的关系。方法 选取2021年2月-2022年2月我院收治的缺血性心脏... 目的 探讨缺血性疾病患者血清长链非编码RNA浆细胞瘤转化迁移基因1(lncRNA PVT1)和叉头框转录因子M1(FOX M1)表达水平及联合心脏钆对比剂延迟增强磁共振成像(LGE-MRI)与预后的关系。方法 选取2021年2月-2022年2月我院收治的缺血性心脏病患者118例即为研究组,随访一年根据随访过程中是否发生主要心脏不良事件(MACE),分为MACE组32例,无MACE组86例。同期选择在我院体检健康的志愿者118例为对照组。实时荧光定量PCR(qRT-PCR)检测血清lncRNA PVT1的相对表达量。采用酶联免疫吸附试验(E LISA)检测FOXM1水平。受试者工作特征(ROC)曲线分析LGE-MRI、血清lncRNA PVT1和FOXM1对缺血性心脏病患者预后发生MACE的预测价值。结果 研究组患者DBP、SBP、TG、TC、 LDL-C、GLU水平与对照组相比显著升高,HDL-C水平显著降低(P<0.05)。与对照组相比,研究组的血清中lncRNA PVT1和FOXM1水平显著升高(P<0.05)。与无MACE组相比,MACE组患者DBP、SBP、TC、LDL-C水平显著升高, HDL-C水平显著降低(P<0.05)。与无MACE组相比,MACE组患者血清中lncRNA PVT1和FOXM1水平显著升高(P<0.05)。MACE组的LGE-MRI阳性数量显著高于无MACE组(P<0.)05。与LGE-MRI、血清lncRNA PVT1和FOXM1单独预测相比,三者联合预测MACE发生的AUC更高(Z=7.221,P<0.001;Z=7.737,P<0.001;Z=7.091,P<0.001)。结论 缺血性心脏病预后发生MACE的患者血清lncRNA PVT1和FOXM1水平呈高表达,二者联合LGE-MRI对MACE的发生有一定的预测价值。 展开更多
关键词 长链非编码rna浆细胞瘤转化迁移基因1 叉头框转录因子M1 心脏钆对比剂延迟增强磁共振成像 预后 缺血性疾病
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lncRNA717对胃癌细胞生物学行为的影响及调控机制研究
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作者 周善学 陆蓉丹 +5 位作者 朱春霞 邵永富 倪超 余筱燕 严嘉宁 郑四鸣 《浙江医学》 CAS 2023年第14期1505-1511,I0006,I0007,共9页
目的探讨长链非编码RNA(lncRNA)717对胃癌细胞增殖、转移等生物学行为的影响及其调控机制。方法收集2021年1至12月宁波大学附属第一医院手术切除或活检的31例胃癌组织及配对癌旁组织,以及胃癌细胞系AGS、HGC-27和人正常胃黏膜细胞系GES-... 目的探讨长链非编码RNA(lncRNA)717对胃癌细胞增殖、转移等生物学行为的影响及其调控机制。方法收集2021年1至12月宁波大学附属第一医院手术切除或活检的31例胃癌组织及配对癌旁组织,以及胃癌细胞系AGS、HGC-27和人正常胃黏膜细胞系GES-1。采用qRT-PCR法检测lncRNA717在胃癌组织及癌旁组织、各细胞系中的表达水平。采用细胞增殖和毒性检测(CCK-8)法、Transwell法和划痕试验分别评估lncRNA717对细胞增殖、侵袭和迁移中的影响。采用荧光素酶报告基因测定、qRT-PCR法和Western blot法检测各组标本和细胞中lncRNA717、miR-762和干扰素调节因子(IRF)7表达水平。结果与癌旁组织相比,lncRNA717在胃癌组织中显著下调,与正常细胞相比,lncRNA717在胃癌细胞中显著下调。过表达lncRNA717抑制了胃癌细胞的增殖、迁移和侵袭。lncRNA717可以吸附miR-762,上调miR-762能抑制IRF7的表达,促进胃癌细胞的增殖、迁移和侵袭,而过表达lncRNA717后逆转了miR-762对细胞的增殖、迁移和侵袭的促进作用。结论lncRNA717可抑制胃癌细胞的增殖和转移,这可能与调控miR-762/IRF7有关。提示lncRNA717可作为胃癌的潜在生物标志物和治疗靶点。 展开更多
关键词 胃癌 长链非编码rna miR-762 干扰素调节因子7
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血清lncRNA PCAT1、miR-128-3p水平与结肠癌患者病理特征及术后肝转移的关系研究
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作者 石彦科 颜廷启 +4 位作者 孙伟涛 陈志飞 孙江江 霍浩然 王军委 《中国肿瘤外科杂志》 CAS 2024年第5期458-464,共7页
目的探讨血清长链非编码核糖核酸(LncRNA)前列腺癌相关转录因子1(PCAT1)、微小RNA-128-3p(miR-128-3p)水平与结肠癌患者病理特征及术后肝转移的关系。方法选取2019年2月至2021年1月期间邯郸市中心医院收治的接受手术治疗的157例结肠癌患... 目的探讨血清长链非编码核糖核酸(LncRNA)前列腺癌相关转录因子1(PCAT1)、微小RNA-128-3p(miR-128-3p)水平与结肠癌患者病理特征及术后肝转移的关系。方法选取2019年2月至2021年1月期间邯郸市中心医院收治的接受手术治疗的157例结肠癌患者(结肠癌组)为研究对象,55例同期健康体检者作为对照组。采用实时荧光定量PCR法检测并比较两组血清LncRNA PCAT1、miR-128-3p表达水平,分析结肠癌患者血清LncRNA PCAT1与miR-128-3p表达水平的相关性,分析血清LncRNA PCAT1、miR-128-3p表达水平与结肠癌临床病理特征的关系。随访3年,统计结肠癌术后肝转移发生率,采用单因素和多因素Logistic回归模型分析结肠癌术后肝转移的危险因素,采用受试者工作特征(ROC)曲线分析血清LncRNA PCAT1、miR-128-3p对结肠癌术后肝转移的预测价值。结果与对照组相比,结肠癌组血清LncRNA PCAT1表达水平升高,miR-128-3p表达水平降低(P<0.05);Pearson相关性分析发现结肠癌患者血清LncRNA PCAT1表达水平与血清miR-128-3p呈负相关(r=-0.661,P<0.001)。不同TNM分期患者血清LncRNA PCAT1表达水平比较,Ⅰ期<Ⅱ期<Ⅲ期;血清miR-128-3p表达水平比较,Ⅰ期>Ⅱ期>Ⅲ期(P<0.05)。无淋巴结转移、未侵犯浆膜层相比,有淋巴结转移、侵犯浆膜层的结肠癌患者血清LncRNA PCAT1表达水平均较高,血清miR-128-3p表达水平均较低(P<0.05)。随访3年,结肠癌术后肝转移发生率为25.48%(40/157)。多因素Logistic回归分析显示,TNM分期Ⅲ期、有淋巴结转移、血清LncRNA PCAT1表达水平升高是影响结肠癌术后肝转移的独立危险因素(P<0.05),血清miR-128-3p表达水平升高是保护因素(P<0.05)。ROC曲线分析显示,血清LncRNA PCAT1、miR-128-3p单独及二者联合预测结肠癌术后肝转移的AUC分别为0.761、0.763、0.836,二者联合预测的灵敏度高于单独预测(P<0.05)。结论结肠癌患者血清LncRNA PCAT1高表达、miR-128-3p低表达,两者与TNM分期、淋巴结转移、侵犯浆膜层及术后肝转移密切相关,可作为预测结肠癌术后肝转移的潜在辅助性指标。 展开更多
关键词 结肠癌 肝转移 长链非编码rna前列腺癌相关转录因子1 微小rna-128-3p 病理特征
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LncRNA CBR3-AS1调节miR-448/TFAM轴对结直肠癌细胞恶性生物学行为的影响
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作者 徐娜娜 胡敬暖 王新玮 《检验医学与临床》 CAS 2024年第14期2075-2081,共7页
目的 探讨长链非编码RNA(LncRNA)CBR3-AS1对结直肠癌(CRC)细胞恶性生物学行为的影响及其机制。方法 收集济南市第五人民医院2021年1月至2022年6月获取的40对CRC组织和邻近癌旁组织标本,采用实时荧光定量聚合酶链反应(qRT-PCR)检测人CRC... 目的 探讨长链非编码RNA(LncRNA)CBR3-AS1对结直肠癌(CRC)细胞恶性生物学行为的影响及其机制。方法 收集济南市第五人民医院2021年1月至2022年6月获取的40对CRC组织和邻近癌旁组织标本,采用实时荧光定量聚合酶链反应(qRT-PCR)检测人CRC组织、癌旁组织和CRC细胞系、正常结直肠上皮细胞中LncRNA CBR3-AS1、微小RNA-448(miR-448)及线粒体转录因子A(TFAM)mRNA表达。根据不同CRC细胞系中LncRNA CBR3-AS1的表达水平筛选后续实验使用的细胞系。验证miR-448与LncRNA CBR3-AS1、TFAM的靶向关系。在目标细胞中转染靶向LncRNA CBR3-AS1的小干扰RNA(si-CBR3-AS1)、miR-448抑制物(miR-448 inhibitor),采用qRT-PCR、蛋白免疫印迹法(Western blot)检测LncRNA CBR3-AS1、miR-448及TFAM mRNA和蛋白表达;采用CCK-8法、流式细胞术、划痕愈合实验和Transwell实验分别检测细胞活力、凋亡率、迁移及侵袭能力。结果 CRC组织和细胞中LncRNA CBR3-AS1及TFAM mRNA呈高表达,miR-448呈低表达,且HCT116细胞中LncRNA CBR3-AS1的表达最高,故选择HCT116细胞进行后续靶向验证和转染实验。经验证,HCT116细胞中miR-448与LncRNA CBR3-AS1、TFAM均存在靶向关系。转染si-CBR3-AS1可降低HCT116细胞中LncRNA CBR3-AS1及TFAM mRNA和蛋白表达水平,同时降低细胞活力、划痕愈合率、迁移细胞数、侵袭细胞数,升高miR-448表达水平及凋亡率;转染si-CBR3-AS1基础上转染miR-448 inhibitor可减弱干扰LncRNA CBR3-AS1表达对HCT116细胞的影响。结论 干扰LncRNA CBR3-AS1可抑制CRC细胞的恶性生物学行为,其机制可能与靶向miR-448/TFAM轴有关。 展开更多
关键词 结直肠癌 长链非编码rna CBR3-AS1 微小rna-448 线粒体转录因子A 迁移 侵袭
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动脉瘤性蛛网膜下腔出血患者开颅夹闭术后血清KLF5 mRNA和lncRNA NEAT1表达及其与认知功能的相关性研究
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作者 周真真 王琦 +1 位作者 张旋 马美娜 《检验医学与临床》 CAS 2024年第20期3017-3021,3025,共6页
目的探讨动脉瘤性蛛网膜下腔出血患者开颅夹闭术后血清Kruppel样因子5(KLF5)微小RNA(mRNA)和长链非编码RNA核富含丰富的转录本1(lncRNA NEAT1)表达与认知功能的相关性。方法选取2021年2月至2022年4月在该院进行开颅夹闭术的110例动脉瘤... 目的探讨动脉瘤性蛛网膜下腔出血患者开颅夹闭术后血清Kruppel样因子5(KLF5)微小RNA(mRNA)和长链非编码RNA核富含丰富的转录本1(lncRNA NEAT1)表达与认知功能的相关性。方法选取2021年2月至2022年4月在该院进行开颅夹闭术的110例动脉瘤性蛛网膜下腔出血患者作为研究对象。术后根据认知功能的评分分为认知功能正常(≥26分,对照组)和认知功能障碍(<26分,研究组)。采用实时荧光定量聚合酶链反应检测血清KLF5 mRNA和lncRNA NEAT1水平;采用简易精神状态量表(MMSE)和蒙特利尔认知评估量表(MoCA)评分评定患者的认知功能水平;采用Pearson相关分析血清KLF5 mRNA与lncRNA NEAT1的相关性及二者与认知功能障碍的相关性;采用多因素Logistic回归分析动脉瘤性蛛网膜下腔出血患者认知功能障碍的影响因素;绘制受试者工作特征(ROC)曲线分析血清KLF5 mRNA和lncRNA NEAT1水平单独及二者联合对动脉瘤性蛛网膜下腔出血患者认知功能障碍的诊断价值。结果对照组纳入67例患者,研究组纳入43例患者。术后早期研究组血清KLF5 mRNA和lncRNA NEAT1水平均显著高于对照组,且术后早期血清KLF5 mRNA和lncRNA NEAT1水平均显著高于术前,差异均有统计学意义(P<0.05)。研究组MMSE和MoCA评分均显著低于对照组,差异均有统计学意义(P<0.05)。Pearson相关分析结果显示,血清KLF5 mRNA和lncRNA NEAT1水平呈正相关(P<0.05),且二者均与MMSE和MoCA评分均呈负相关(P<0.05)。多因素Logistic回归分析结果显示,KLF5 mRNA、lncRNA NEAT1高表达均为动脉瘤性蛛网膜下腔出血患者认知功能障碍的危险因素(P<0.05)。ROC曲线分析结果显示,KLF5 mRNA诊断动脉瘤性蛛网膜下腔出血患者认知功能障碍的曲线下面积(AUC)为0.814,lncRNA NEAT1诊断动脉瘤性蛛网膜下腔出血患者认知功能障碍的AUC为0.872,二者联合诊断动脉瘤性蛛网膜下腔出血患者认知功能障碍的AUC为0.950,二者联合诊断优于KLF5和lncRNA NEAT1各自单独诊断(Z联合vs.KLF5mRNA=2.547、Z联合vs.lncRNA NEAT1=3.268,P<0.05)。结论动脉瘤性蛛网膜下腔出血患者开颅夹闭术后血清KLF5 mRNA和lncRNA NEAT1表达升高与认知功能障碍有关,二者联合检测可以更好地预测认知功能障碍的发生。 展开更多
关键词 动脉瘤性蛛网膜下腔出血 开颅夹闭术 Kruppel样因子5 长链非编码rna核富含丰富的转录本1 认知功能
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血清LncRNA NEAT1、TFF1在视网膜母细胞瘤中的表达及预后评估价值
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作者 万宇 邹云春 +3 位作者 王岚 李娜 何艺岚 王淑 《疑难病杂志》 CAS 2024年第8期987-992,共6页
目的分析视网膜母细胞瘤(Rb)患儿血清长链非编码RNA核内富集转录物1(LncRNA NEAT1)、三叶因子1(TFF1)表达及预后评估价值。方法选取2018年1月—2021年1月首都医科大学附属北京安贞医院南充医院眼科手术治疗的Rb患儿85例作为Rb组,以同期... 目的分析视网膜母细胞瘤(Rb)患儿血清长链非编码RNA核内富集转录物1(LncRNA NEAT1)、三叶因子1(TFF1)表达及预后评估价值。方法选取2018年1月—2021年1月首都医科大学附属北京安贞医院南充医院眼科手术治疗的Rb患儿85例作为Rb组,以同期体检健康者60例为健康对照组。采用实时荧光定量PCR检测血清LncRNA NEAT1水平,采用酶联免疫吸附试验检测血清TFF1;分析血清LncRNA NEAT1、TFF1与临床病理特征的关系;Cox回归分析Rb预后影响因素;受试者工作特征(ROC)曲线分析血清LncRNA NEAT1、TFF1对Rb患儿预后的评估价值。结果Rb组血清LncRNA NEAT1水平高于健康对照组,血清TFF1低于健康对照组(t/P=38.305/<0.001、34.858/<0.001)。与肿瘤直径<20 mm、病理分化型Rb患儿比较,肿瘤直径≥20 mm、未分化型Rb患儿血清LncRNA NEAT1较高,TFF1较低(LncRNA NEAT1:t/P=17.925/<0.001,16.848/<0.001;TFF1:t/P=12.505/<0.001,8.120/<0.001)。血清LncRNA NEAT1高表达组3年无进展生存率低于低表达组(57.50%vs.88.89%),TFF1低表达组3年无进展生存率低于高表达组(57.14%vs.90.70%)(Log rankχ^(2)/P=13.551/<0.001、15.310/<0.001)。病理未分化型、血清LncRNA NEAT1升高是影响Rb预后的危险因素,血清TFF1升高是其保护因素[HR(95%CI)=1.523(1.147~2.024),1.473(1.108~1.957),0.612(0.413~0.908)];血清LncRNA NEAT1、TFF1及二者联合预测Rb预后的曲线下面积分别为0.836、0.861、0.921,二者联合大于血清LncRNA NEAT1、TFF1单项检测(Z=4.823、4.312,P均<0.001)。结论Rb患儿血清LncRNA NEAT1升高,血清TFF1水平降低,两者与肿瘤最大径及病理分型有关,均是影响Rb患儿预后的因素,两者联合有助于评估患者预后。 展开更多
关键词 视网膜母细胞瘤 长链非编码rna核内富集转录物1 三叶因子1 预后预测 儿童
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Construction of a prognostic signature of m7G-related lncRNAs in bladder cancer:a bioinformatics analysis
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作者 Jia-Hua Yu Wen-Yue Xu Xi-Zhi Zhang 《Medical Data Mining》 2023年第2期21-30,共10页
Background:N7-methylguanosine(m7G)-related plays an important role in the occurrence and development of tumors,and some recent studies have pointed out that long non-coding RNA is involved in the occurrence and develo... Background:N7-methylguanosine(m7G)-related plays an important role in the occurrence and development of tumors,and some recent studies have pointed out that long non-coding RNA is involved in the occurrence and development of various cancers.However,there is no literature on how m7G-related lncRNAs predict the prognosis of bladder cancer.The purpose of this study was to develop a predictive feature based on long non-coding RNA(lncRNAs)associated with m7G to predict the prognosis of patients with bladder cancer.Methods:We obtained the RNA transcriptome data and clinical data of bladder cancer patients through the cancer genome atlas database,and obtained the lncRNAs related to m7G by co-expression analysis and Cox regression analysis.Then the signature was evaluated by receiver operating characteristic curve and nomogram,and single sample gene set concentration analysis was used to study the correlation between the predictive model and tumor immune microenvironment in high-risk and low-risk groups.Results:We got a total of 5 m7G related lncRNA(MAFG-DT,AP003352.1,AC242842.1,AC024060.1,FAM111A-DT),which may be related to the prognosis of patients with bladder cancer.For predicting 1-,3-and 5-year survival rates,the area under the receiver operating characteristic curve was 0.757 and 0.722 and 0.739,respectively.Kaplan-Meier analysis showed that the prognosis of bladder cancer patients in high risk group was worse than that in low risk group.Immunoassay showed that the immune function of patients with bladder cancer in high risk group was more active.Conclusion:Prognostic markers based on m7G-related lncRNAs can be used to independently predict the prognosis of patients with bladder cancer and provide therapeutic targets for future clinical treatment. 展开更多
关键词 N7-methylguanosine long non-coding rna bladder cancer prognostic model the cancer genome atlas
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CCAT1靶向抑制miR-375-3p通过线粒体途径诱导的人口腔癌SAS细胞凋亡
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作者 卢泰青 高振杰 +1 位作者 张炜 施鹏伟 《解剖学杂志》 CAS 2024年第2期114-119,189,共7页
目的:探究长链非编码RNA(lncRNA)结肠癌相关转录因子1(CCAT1)靶向miR-375-3p通过线粒体途径诱导人口腔癌SAS细胞凋亡的作用。方法:人口腔癌SAS细胞随机分为空白组、CCAT1下调组、CCAT1上调组、CCAT1下调对照组、CCAT1上调对照组、miR-37... 目的:探究长链非编码RNA(lncRNA)结肠癌相关转录因子1(CCAT1)靶向miR-375-3p通过线粒体途径诱导人口腔癌SAS细胞凋亡的作用。方法:人口腔癌SAS细胞随机分为空白组、CCAT1下调组、CCAT1上调组、CCAT1下调对照组、CCAT1上调对照组、miR-375-3p下调组、miR-375-3p上调组、miR-375-3p下调对照组和miR-375-3p上调对照组。转染48 h后,流式细胞术检测细胞凋亡;RT-qPCR检测miR-375-3p表达、线粒体凋亡通路相关的基因半胱氨酰天冬氨酸特异性蛋白酶3(caspase-3)、半胱氨酰天冬氨酸特异性蛋白酶9(caspase-9)、B淋巴细胞瘤-2(Bcl-2)和Bcl-2相关X蛋白(Bax)的mRNA表达;免疫印迹检测caspase-3、caspase-9、Bcl-2、Bax蛋白表达;双荧光素酶报告实验分析CCAT1与miR-375-3p的靶向关系。结果:与空白组和CCAT1下调对照组比较,CCAT1下调组细胞凋亡率、miR-375-3p表达、caspase-3、caspase-9、Bax mRNA及蛋白表达升高,Bcl-2 mRNA及蛋白表达降低;与空白组和CCAT1上调对照组比,CCAT1上调组细胞凋亡率、miR-375-3p表达、caspase-3、caspase-9、Bax mRNA及蛋白表达降低,Bcl-2 mRNA及蛋白表达升高;与空白组和miR-375-3p下调对照组比较,miR-375-3p下调组细胞凋亡率、miR-375-3p表达、caspase-3、caspase-9、Bax mRNA及蛋白表达降低,Bcl-2 mRNA及蛋白表达升高;与空白组和miR-375-3p上调对照组比较,miR-375-3p上调组细胞凋亡率、miR-375-3p表达、caspase-3、caspase-9、Bax mRNA及蛋白表达升高,Bcl-2 mRNA及蛋白表达降低。双荧光素酶实验结果提示CCAT1可靶向调控miR-375-3p。结论:CCAT1可抑制人口腔癌SAS细胞凋亡,推测是通过靶向抑制miR-375-3p的表达,调控线粒体凋亡通路相关基因及蛋白的表达来实现的。 展开更多
关键词 长链非编码rna 结肠癌相关转录因子1 miR-375-3p 口腔癌 线粒体途径 凋亡
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LncRNA TMPO-AS1调节miR-340-5p/RUNX1轴对结直肠癌细胞增殖、迁移和侵袭的影响 被引量:1
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作者 许汉兵 韩建涛 张成鹏 《河北医药》 CAS 2024年第2期165-170,共6页
目的探讨长链非编码RNA TMPO反义RNA1(LncRNA TMPO-AS1)调控miR-340-5p/RUNT相关转录因子1(RUNX1)轴对结直肠癌(CRC)细胞增殖、迁移和侵袭的影响。方法qRT-PCR检测人正常结肠上皮细胞HCoEpiC、人CRC细胞SW480、HCT116、LOVO、HT-29中TMP... 目的探讨长链非编码RNA TMPO反义RNA1(LncRNA TMPO-AS1)调控miR-340-5p/RUNT相关转录因子1(RUNX1)轴对结直肠癌(CRC)细胞增殖、迁移和侵袭的影响。方法qRT-PCR检测人正常结肠上皮细胞HCoEpiC、人CRC细胞SW480、HCT116、LOVO、HT-29中TMPO-AS1、miR-340-5p、RUNX1表达;将HCT116细胞随机分为:si-ctrl组、si-TMPO-AS1组、mimics NC组、miR-340-5p组、si-TMPO-AS1+anti-miR-ctrl组、si-TMPO-AS1+anti-miR-340-5p组;qRT-PCR检测6组HCT116细胞TMPO-AS1、miR-340-5p、RUNX1水平;CCK-8法检测HCT116细胞活力;EDU法检测HCT116细胞增殖;Transwell检测HCT116细胞迁移和侵袭;western blot检测HCT116细胞RUNX1、PCNA、MMP-2表达;双荧光素酶报告基因实验分别验证TMPO-AS1和miR-340-5p、miR-340-5p和RUNX1的关系。结果与HCoEpiC细胞比较,不同CRC细胞中TMPO-AS1、RUNX1表达显著性升高,miR-424-5p表达显著性降低(P<0.05),且HCT116细胞变化结果更显著,后续实验选择HCT116细胞。与si-ctrl组比较,si-TMPO-AS1组HCT116细胞TMPO-AS1、RUNX1 mRNA水平、细胞活力A值、EDU阳性细胞率、迁移与侵袭细胞数、RUNX1、PCNA、MMP-2蛋白水平均显著性降低,miR-340-5p mRNA水平显著性升高(P<0.05);与mimics NC组比较,miR-340-5p组HCT116细胞RUNX1 mRNA水平、细胞活力A值、EDU阳性细胞率、迁移与侵袭细胞数、RUNX1、PCNA、MMP-2蛋白水平均显著性降低,miR-340-5p mRNA水平显著性升高(P<0.05);与si-TMPO-AS1+anti-miR-ctrl组比较,si-TMPO-AS1+anti-miR-340-5p组HCT116细胞RUNX1 mRNA水平、细胞活力A值、EDU阳性细胞率、迁移与侵袭细胞数、RUNX1、PCNA、MMP-2蛋白水平均显著性升高,miR-340-5p mRNA水平显著性降低(P<0.05);TMPO-AS1靶向负调控miR-340-5p表达,miR-340-5p靶向负调控RUNX1表达。结论沉默TMPO-AS1靶向上调miR-340-5p表达,从而下调RUNX1表达,抑制HCT116细胞增殖、迁移和侵袭。 展开更多
关键词 Lncrna TMPO-AS1 miR-340-5p RUNX1 结直肠癌细胞
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