ADAM10 promotes cell growth, migration, and invasion in osteosarcoma via regulating E-cadherin/β-catenin signaling pathway and is regulated by miR-122-5p

Quan Yuan; Honghao Yu; Jianhua Chen; Xiaoyu Song; Li Sun

doi:10.1186/s12935-020-01174-2

ADAM10 promotes cell growth, migration, and invasion in osteosarcoma via regulating E-cadherin/β-catenin signaling pathway and is regulated by miR-122-5p

Cancer Cell Int. 2020 Mar 30:20:99. doi: 10.1186/s12935-020-01174-2. eCollection 2020.

Authors

Quan Yuan¹, Honghao Yu¹, Jianhua Chen¹, Xiaoyu Song², Li Sun³

Affiliations

¹ 1Department of Orthopedics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110004 People's Republic of China.
² 2Institute of Translational Medicine, China Medical University, Shenyang, 110122 People's Republic of China.
³ 3Department of Nephrology, The First Hospital of China Medical University, Shenyang, 110001 People's Republic of China.

Abstract

Background: Osteosarcoma is a malignant bone tumor. Increasing evidences have revealed that a disintegrin and metalloproteinase 10 (ADAM10) is implicated in tumor development. The main purpose of this study is to explore the effects of ADAM10 on osteosarcoma cell functions and the underlying molecular mechanisms.

Methods: Western blot and quantitative real-time PCR were performed to detect the expression of ADAM10 in one osteoblast (hFOB 1.19) and six osteosarcoma cells (Saos-2, SW1353, HOS, U-2OS, MG63, and 143B). The biological functions of ADAM10 in osteosarcoma cells were measured by cell counting kit-8 assay, flow cytometry, wound healing assay, and transwell assay. The interaction between miR-122-5p and ADAM10 was validated using dual-luciferase reporter assay. The effect of ADAM10 on the tumorigenicity of osteosarcoma cells was evaluated in a nude mice model in vivo.

Results: We found that the expression of ADAM10 was relatively high in osteosarcoma cells compared with that in osteoblast. ADAM10 promoted osteosarcoma cell growth, migration, and invasion. Mechanism studies showed that knockdown of ADAM10 inactivated E-cadherin/β-catenin signaling pathway, as evidenced by increased the level of E-cadherin, reduced nuclear translocation of β-catenin, and decreased the levels of MMP-9, Cyclin D1, c-Myc, and Survivin. Downregulation of ADAM10 suppressed the tumorigenicity of osteosarcoma cells in vivo. Furthermore, ADAM10 was validated to be a downstream target of microRNA-122-5p (miR-122-5p). MiR-122-5p-induced inhibition of cell proliferation, migration, and invasion was reversed by overexpression of ADAM10 in osteosarcoma cells.

Conclusions: Collectively, the key findings of this study are that ADAM10 promotes osteosarcoma cell proliferation, migration, and invasion by regulating E-cadherin/β-catenin signaling pathway, and miR-122-5p can target ADAM10, indicating that miR-122-5p/ADAM10 axis might serve as a therapeutic target of osteosarcoma.

Keywords: ADAM10; Cell growth; E-cadherin/β-catenin signaling pathway; MiR-122-5p; Osteosarcoma.