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Journal of Molecular Medicine

, Volume 96, Issue 8, pp 753–764 | Cite as

The lncRNA MIR4435-2HG promotes lung cancer progression by activating β-catenin signalling

  • Haiyun Qian
  • Li Chen
  • Jiangping Huang
  • Xianghui Wang
  • Shengwei Ma
  • Fenghe Cui
  • Liyun Luo
  • Li Ling
  • Kai LuoEmail author
  • Guopei ZhengEmail author
Original Article

Abstract

Recently, emerging evidence has suggested that long noncoding RNAs (lncRNAs) have crucial roles in cancer progression. Here, we demonstrated that the lncRNA MIR4435-2HG was highly expressed in lung cancer tissues and correlated with histological grades and lymph node metastasis. Phenotypic analysis indicated that MIR4435-2HG knockdown inhibited lung cancer cell proliferation and invasion in vitro and in vivo. Notably, MIR4435-2HG knockdown suppressed the EMT (epithelial-mesenchymal transition) process and cancer stem cell traits of lung cancer cells. Mechanistically, MIR4435-2HG knockdown decreased the transactivation of β-catenin. MIR4435-2HG interacted with β-catenin and thus prevented its degradation by the proteasome system. Our findings highlight the important roles and mechanisms of MIR4435-2HG in lung cancer progression. High expression of lncRNA MIR4435-2HG correlates with lung cancer progression MIR4435-2HG promotes lung cancer cells proliferation and invasion MIR4435-2HG knockdown suppresses the EMT process and cancer stem cell traits MIR4435-2HG knockdown inhibits the β-catenin signalling.

Keywords

Lung cancer lncRNAs EMT β-catenin 

Notes

Authors’ contributions statement

HQ, LC, XW, SM, LLuo and LLing performed the research; JH and FC statistically analysed the experimental data; KL and GZ designed the study and wrote the paper.

Funding information

This study was supported by grants from the National Natural Science Foundation of China (81672616 and 81402196) the Guangdong Natural Science Funds for Distinguished Young Scholars, China (2016A030306003), the Science and Technology Program of Guangzhou, China (201710010100), the Guangzhou Municipal University Scientific Research Project (1201610027) and supported by Guangzhou key medical discipline construction project fund.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflicts of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Haiyun Qian
    • 1
  • Li Chen
    • 2
  • Jiangping Huang
    • 1
  • Xianghui Wang
    • 1
  • Shengwei Ma
    • 1
  • Fenghe Cui
    • 1
  • Liyun Luo
    • 3
  • Li Ling
    • 3
  • Kai Luo
    • 3
    Email author
  • Guopei Zheng
    • 3
    Email author
  1. 1.Department of Cardiothoracic Surgery, Jingzhou Central Hospital, The Second Clinical Medical CollegeYangtze UniversityJingzhouChina
  2. 2.Department of Endocrinology, Jingzhou Central Hospital, The Second Clinical Medical CollegeYangtze UniversityJingzhouChina
  3. 3.Guangzhou Key Laboratory of “Translational Medicine on Malignant Tumor Treatment”Affiliated Cancer Hospital & Institute of Guangzhou Medical UniversityGuangzhouChina

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