δ-Catenin promotes tumorigenesis and metastasis of lung adenocarcinoma

  • Authors:
    • Fei Huang
    • Junying Chen
    • Zeng Wang
    • Ruilong Lan
    • Lengxi Fu
    • Lurong Zhang
  • View Affiliations

  • Published online on: December 8, 2017     https://doi.org/10.3892/or.2017.6140
  • Pages: 809-817
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Abstract

δ-Catenin coded by gene CTNND2 has been found to be overexpressed in various types of cancers, including prostate, breast, lung and ovarian cancers. However, the function of δ-catenin in lung carcinoma remains largely unknown. In the present study, we revealed that δ-catenin acts as an oncogene promoting the malignancy of lung adenocarcinoma. When δ-catenin proteins of Lewis lung cells were depleted by knocking out Ctnnd2 via CRISPR/Cas9 technology, the cells lost the tumorigenic and metastatic abilities in vivo. Consistently, overexpression of Ctnnd2 enhances the subcutaneous tumorigenesis and distant metastasis of Lewis lung cells in vivo. However, δ-catenin promotes cell proliferation and cell cycle progression of Lewis lung cells. Mechanistically, δ-catenin enhances G1-S phase transition in cooperation with canonical Wnt signaling in Lewis lung cells. Moreover, δ-catenin promotes oncosphere formation of lung adenocarcinoma cells and is associated with the expression of cancer stem cell markers, which indicates δ-catenin enhances colonization and invasion via cancer stem cell maintenance. Taken together, our data suggest that δ-catenin may serve an important role in the malignancy of lung adenocarcinoma through activating canonical Wnt signaling and cancer stem cell maintenance. Our research indicates that δ-catenin can be a new potential target for the treatment of lung adenocarcinoma.

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February 2018
Volume 39 Issue 2

Print ISSN: 1021-335X
Online ISSN:1791-2431

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APA
Huang, F., Chen, J., Wang, Z., Lan, R., Fu, L., & Zhang, L. (2018). δ-Catenin promotes tumorigenesis and metastasis of lung adenocarcinoma. Oncology Reports, 39, 809-817. https://doi.org/10.3892/or.2017.6140
MLA
Huang, F., Chen, J., Wang, Z., Lan, R., Fu, L., Zhang, L."δ-Catenin promotes tumorigenesis and metastasis of lung adenocarcinoma". Oncology Reports 39.2 (2018): 809-817.
Chicago
Huang, F., Chen, J., Wang, Z., Lan, R., Fu, L., Zhang, L."δ-Catenin promotes tumorigenesis and metastasis of lung adenocarcinoma". Oncology Reports 39, no. 2 (2018): 809-817. https://doi.org/10.3892/or.2017.6140