LncRNA NPSR1 AS1 在胃癌中的表达及作用机制
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国家自然科学基金青年基金面上项目(81500193,81802409);中国博士后科学基金项目(2015M571703);江苏省自然科学 基金面上项目(BK20161353,BK20171304);江苏省青年医学重点人才项目(QNRC2016454);江苏省卫生计生委医学科研 课题(Z201617);镇江市重点研发计划社会发展面上项目(SH2017026,SH2018057,SH2018072)。


Expression and action mechanism of LncRNA NPSR1AS1 in gastric cancer
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    摘要:

    目的 探讨 LncRNA NPSR1AS1 在胃癌(gastric cancer,GC)中的表达及临床意义,分析其对胃癌细胞生物学行为的影 响和作用机制。方法 收集 86 例胃癌患者癌组织及癌旁组织,另收集 21 例胃癌患者及体检健康者血浆标本,采用实时荧光 定量 PCR(RTqPCR)检测各组 LncRNA NPSR1AS1 的表达水平,并与患者临床病理资料进行相关性分析。siRNA 敲减 NPSR1AS1 后,采用细胞增殖试验、Transwell 试验、流式细胞术检测癌细胞增殖、迁移、侵袭、凋亡能力,并用 RTqPCR 检测肿 瘤相关基因表达量的变化。结果 LncRNA NPSR1AS1 在胃癌组织中的表达水平显著升高,且与肿瘤大小(t = 11.02,P< 0.01)、淋巴结转移(t = 2.30,P<0.05)、TNM 分期(t = 3.55,P<0.01)、肿瘤血管或神经侵袭(t = 3.10,P<0.05)显著相关;血浆 LncRNA NPSR1AS1 筛查胃癌的 ROC 曲线下面积(AUCROC)为 0.696。LncRNA NPSR1AS1 敲减后可使 GSK3β(t = 16.15,P< 0.01)和 Ecadherin(t = 10.17,P<0.01)表达上调,βcatenin(t = 4.869,P<0.05)、Ncadherin(t = 3.77,P<0.05)、Snail(t = 9.372, P<0.01)和 MMP2(t = 15.57,P<0.01)表达下调。结论 LncRNA NPSR1AS1 敲减可抑制胃癌细胞增殖、迁移及侵袭并诱导其 凋亡,其作用机制与上皮-间质转化(EMT)有关。

    Abstract:

    Objective To investigate the expression and clinical significance of LncRNA NPSR1AS1 in gastric cancer (GC)and its effect and action mechanism on the biological behavior of GC cells. Methods The tumor tissues and adjacent tissues from 86 GC pa tients and plasma samples from 21 GC patients and 21 healthy controls were collected,and the expression levels of LncRNA NPSR1 AS1 in these tissue and plasma samples were detected by realtime quantitative PCR (RTqPCR). The correlations of NPSR1AS1 lev els with clinicopathological parameters were analyzed. After NPSR1AS1 levels were knocked down with siRNA,the proliferation,mi gration,invasion and apoptosis of tumor cells were detected by the cell proliferation test,Transwell test and flow cytometry,and the ex pression levels of tumorrelated genes were detected by RTqPCR. Results The expression levels of NPSR1AS1 in GC tissues in creased significantly,and were significantly correlated with tumor size (t = 11.02,P<0.01),lymph node metastasis (t = 2.30,P< 0.05),TNM stage (t = 3.55,P<0.01)and tumor vascular or nerve invasion (t = 3.10,P<0.05). The area under the ROC curve (AUCROC)of plasma NPSR1AS1 expression levels for screening GC was 0.696. The knockdown of NPSR1AS1 was able to increase the expression of GSK3β (t = 16.15,P<0.01)and Ecadherin (t = 10.17,P<0.01),and reduce the expression of βcatenin (t = 4.869,P<0.05),Ncadherin (t = 3.77,P<0.05),Snail (t = 9.372,P<0.01)and MMP2 (t = 15.57,P<0.01). Conclusion The knockdown of LncRNA NPSR1AS1 can inhibit the proliferation,migration and invasion and induce the apoptosis of GC cells,and its mechanism is related to the epithelial mesenchymal transition (EMT).

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谢文杰,张鹤腾,唐银炳,陆佳伟,侯雯跻,周晓东,徐颖,张文波,于强,邹晨. LncRNA NPSR1 AS1 在胃癌中的表达及作用机制[J].临床检验杂志,2021,39(9):656-661

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  • 收稿日期:2021-03-29
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  • 在线发布日期: 2021-11-11
  • 出版日期: 2021-09-28
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