It has been certified that GABPB1-AS1 is aberrantly expressed and plays as a vital role in some kinds of cancers.However,its expression pattern and functions in non-small cell lung cancer(NSCLC)are still largely unknow...It has been certified that GABPB1-AS1 is aberrantly expressed and plays as a vital role in some kinds of cancers.However,its expression pattern and functions in non-small cell lung cancer(NSCLC)are still largely unknown.This study aims to assess GABPB1-AS1 expression and biological roles in NSCLC.The expression of GABPB1-AS1 was detected in NSCLC specimens and adjacent normal specimens.CCK8 and Transwell assays were performed to evaluate the effects of GABPB1-AS1 on NSCLC cell proliferation,migration and invasion.Bioinformatics tools and luciferase reporter assays were applied to predict and verify GABPB1-AS1’s direct targets.The results revealed that GABPB1-AS1 is sharply reduced in NSCLC specimens and cell lines.CCK8 assays indicated that overexpression of GABPB1-AS1 dramatically reduced NSCLC cell growth,and Transwell assays proved that NSCLC cell migration and invasion were distinctly inhibited by GABPB1-AS1.Exploration of the mechanism uncovered that miRNA-566(miR-566)/F-box protein 47(FBXO47)is directly targeted by GABPB1-AS1 in NSCLC.The study demonstrated that GABPB1-AS1 inhibited NSCLC cell proliferation,migration and invasion by targeting miR-566/FBXO47.展开更多
基金supported by the Highlevel Hospital Construction Research Project of Maoming People’s Hospital[Grant No.zx2020012]Maoming Science and Technology Project Special Fund in 2020[Grant No.2020KJZX014]Maoming Science and Technology Project[Grant No.2020395].
文摘It has been certified that GABPB1-AS1 is aberrantly expressed and plays as a vital role in some kinds of cancers.However,its expression pattern and functions in non-small cell lung cancer(NSCLC)are still largely unknown.This study aims to assess GABPB1-AS1 expression and biological roles in NSCLC.The expression of GABPB1-AS1 was detected in NSCLC specimens and adjacent normal specimens.CCK8 and Transwell assays were performed to evaluate the effects of GABPB1-AS1 on NSCLC cell proliferation,migration and invasion.Bioinformatics tools and luciferase reporter assays were applied to predict and verify GABPB1-AS1’s direct targets.The results revealed that GABPB1-AS1 is sharply reduced in NSCLC specimens and cell lines.CCK8 assays indicated that overexpression of GABPB1-AS1 dramatically reduced NSCLC cell growth,and Transwell assays proved that NSCLC cell migration and invasion were distinctly inhibited by GABPB1-AS1.Exploration of the mechanism uncovered that miRNA-566(miR-566)/F-box protein 47(FBXO47)is directly targeted by GABPB1-AS1 in NSCLC.The study demonstrated that GABPB1-AS1 inhibited NSCLC cell proliferation,migration and invasion by targeting miR-566/FBXO47.
文摘目的探究肌层浸润性膀胱癌(muscle-invasive bladder cancer,MIBC)分子亚型特异性,为不同MIBC分子亚型患者的治疗提供指导。方法基于MIBC分子分型方法中的UNC分型法,应用转录组测序数据,将48例MIBC患者分为2种分子亚型即Basal型和Luminal型,并进行差异表达分析以探究MIBC特异性的lncRNAs,并进一步探讨其分子特征和临床意义。结合单细胞质谱流式细胞术(single-cell mass cytometry,CyTOF)和镜像质谱流式细胞术(imaging mass cytometry,IMC)分析MBNL1-AS1高表达组和低表达组Basal型MIBC患者的免疫微环境异质性。结果基于分子分型法筛选发现了在MIBC特异性表达的lncRNA MBNL1-AS1,其低表达与Basal型MIBC患者的不良预后密切相关(P=0.022)。且进一步分析转录组测序数据后发现,在Basal型MIBC中,MBNL1-AS1低表达组具有去分化(P=0.008)、高干性(P=0.020)和高增殖(P=0.010)的特征。MBNL1-AS1低表达组的Basal型MIBC患者的免疫评分与NK CD56bright细胞和Treg细胞的评分呈负相关(P<0.05),而MBNL1-AS1高表达组的B细胞和CD8+T细胞相关基因的表达水平较高。高维度单细胞蛋白质组学分析结果显示,MBNL1-AS1低表达的Basal型MIBC患者表现出较高的Treg细胞亚群丰度(P=0.016)。结论MBNL1-AS1低表达组的Basal型MIBC患者具有去分化、高干性、高增殖和免疫抑制的特点。MBNL1-AS1具有作为Basal型MIBC免疫响应生物标志物的潜能。
