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中华普通外科学文献(电子版) ›› 2020, Vol. 14 ›› Issue (01) : 5 -9. doi: 10.3877/cma.j.issn.1674-0793.2020.01.003

所属专题: 文献

论著

长链非编码RNA牛磺酸调节基因1和miR-132的表达与乳腺癌预后的关系
卢小冬1,()   
  1. 1. 226500 南通,江苏省如皋市人民医院普外科
  • 收稿日期:2018-08-22 出版日期:2020-02-01
  • 通信作者: 卢小冬

Expression of long non-coding RNA taurine upregulated gene 1 and miR-132 in breast cancer andtheir relationship with prognosis

Xiaodong Lu1,()   

  1. 1. Department of General Surgery, Rugao People’s Hospital, Jiangsu Province, Nantong 226500, China
  • Received:2018-08-22 Published:2020-02-01
  • Corresponding author: Xiaodong Lu
  • About author:
    Corresponding author: Lu Xiaodong, Email:
引用本文:

卢小冬. 长链非编码RNA牛磺酸调节基因1和miR-132的表达与乳腺癌预后的关系[J]. 中华普通外科学文献(电子版), 2020, 14(01): 5-9.

Xiaodong Lu. Expression of long non-coding RNA taurine upregulated gene 1 and miR-132 in breast cancer andtheir relationship with prognosis[J]. Chinese Archives of General Surgery(Electronic Edition), 2020, 14(01): 5-9.

目的

探讨乳腺癌中长链非编码RNA(LncRNA)牛磺酸调节基因(TUG)1和miR-132表达情况及两者表达水平与患者预后的关系。

方法

收集2014年1月至2017年11月如皋市人民医院90例手术切除的乳腺癌组织和相应癌旁组织,采用qRT-PCR法检测TUG1和miR-132表达水平,使用Kaplan-Meier法计算TUG1和miR-132表达对乳腺癌患者生存率的影响,采用Cox回归模型分析乳腺癌预后的影响因素。

结果

与癌旁组织相比,乳腺癌组织中TUG1表达水平明显升高(t=65.781,P<0.001),miR-132表达水平显著下降(t=33.089,P<0.001),均与雌激素受体(ER)、人表皮生长因子受体2(HER-2)、FIGO分期、分化程度和淋巴结转移相关(均P<0.05)。乳腺癌组织中TUG1和miR-132表达之间呈负相关关系(r=-0.767,P=0.025)。TUG1高表达者3年生存率为80.77%(42/52),显著低于低表达者97.37%(37/38)(χ2=5.639,P=0.018);miR-132低表达者3年生存率为81.25%(39/48),显著低于高表达者95.24%(40/42)(χ2=4.085,P=0.043)。Cox回归分析发现,ER、HER-2、FIGO分期、分化程度、淋巴结转移、TUG1和miR-132均是乳腺癌患者预后的影响因素(均P<0.05)。

结论

在乳腺癌组织中,TUG1表达水平显著上调,miR-132表达水平显著下调,且两者呈负相关,都是影响预后的独立因素。TUG1可能通过调控miR-132的表达发挥促癌基因的作用,有望成为乳腺癌独立预后标志物和治疗新靶点。

Objective

To investigate the expression of long non-coding (Lnc) RNA taurine upregulated gene (TUG) 1 and microRNA (miR)-132 in breast cancer and their relationship with prognosis.

Methods

Ninety cases of surgically resected breast cancer tissues and the corresponding paracancerous tissue were collected in Rugao People’s Hospital from January 2014 to November 2017. The expression levels of TUG1 and miR-132 were detected by qRT-PCR, effect of TUG1 and miR-132 expression on survival rate of breast cancer patients using Kaplan-Meier method, and analysis of prognostic factors of breast cancer by Cox regression model.

Results

Compared with the adjacent tissues, the expression of TUG1 increased significantly (t=65.781, P<0.001), while the expression of miR-132 decreased significantly (t=33.089, P<0.001). The up-regulation of TUG1 and the down-regulation of miR-132 expression was correlated with ER, HER-2, FIGO stage, differentiation degree and lymph node metastasis (all P<0.05). There was a significantly negative correlation between the expression of TUG1 and miR-132 in breast cancer tissues (r=-0.767, P=0.025). The 3-year survival rate of patients with high expression of TUG1 was 80.77% (42/52), significantly lower than 97.37% (37/38) of those with low expression of microRNAs (χ2=5.639, P=0.018), and 81.25% (39/48) of those with low expression of miR-132, significantly lower than 95.24% (40/42) of those with high expression of microRNAs (χ2=4.085, P=0.043). Cox regression analysis showed that ER, HER-2, FIGO staging, differentiation, lymph node metastasis, TUG1 and miR-132 were independent prognostic factors for breast cancer patients (all P<0.05).

Conclusions

TUG1 expression is significantly up-regulated and miR-132 expression is significantly down-regulated in breast cancer tissues, both of which are negatively correlated and independent prognostic factors. TUG1 may play an oncogene role by regulating the expression of miR-132, and may become an independent prognostic marker and a new therapeutic target for breast cancer.

表1 GAPDH、TUG1、U6和miR-132引物序列
表2 TUG1和miR-132在乳腺癌组织和癌旁组织中的表达(±s
表3 TUG1和miR-132表达与乳腺癌临床病理特征的关系[例(%)]
图2 TUG1和miR-132不同表达的乳腺癌患者生存曲线 A为TUG1高表达对乳腺癌患者生存影响;B为miR-132低表达对乳腺癌患者生存影响
表4 影响乳腺癌预后的多因素分析
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