OncoTargets and Therapy (Dec 2019)
MAGI1 Inhibits the Proliferation, Migration and Invasion of Glioma Cells
Abstract
Zhong-Yan Li,1,2 Xue-Hua Li,2 Guang-Wei Tian,3 Dong-Yong Zhang,4 Hai Gao,1 Zhen-Yu Wang1 1Department of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, People’s Republic of China; 2Department of Neurosurgery, Fuxin Central Hospital, Fuxin, People’s Republic of China; 3Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of China; 4Department of Neurosurgery, First Affiliated Hospital of China Medical University, Shenyang, People’s Republic of ChinaCorrespondence: Zhen-Yu WangDepartment of Anatomy, College of Basic Medical Sciences, China Medical University, Shenyang, People’s Republic of ChinaEmail [email protected]: Membrane-associated guanylate kinase inverted repeat member 1 (MAGI1) acts as a tumor suppressor in a variety of tumors; however, its expression and biological function in glioma are still unknown.Methods: MAGI1 expression in glioma was examined by immunohistochemistry. In addition, overexpression of MAGI1 in U87 and U373 cells, colony formation and MTT assays were used to evaluate cell proliferation, Transwell assays to determine cell migration and invasion, and a xenograft model established using U87 cells to evaluate the effect of MAGI1 overexpression in vivo. Western blot assays were used to analyze the Akt, MMP2, MMP9 and E-cadherin/N-cadherin/vimentin pathway changes after overexpression of MAGI1.Results: We demonstrated that MAGI1 was expressed at low levels in glioma. Low MAGI1 expression was positively correlated with the malignant progression of glioma and indicated a poor prognosis. Moreover, we found that overexpressed MAGI1 inhibited the proliferation, migration and invasion of glioma cells by regulating cell growth and EMT through Akt, MMP2, MMP9 and the E-cadherin/N-cadherin/vimentin pathway.Conclusion: These findings demonstrate a novel function of MAGI1 in glioma progression and suggest that MAGI1 might be a target for the diagnosis and treatment of glioma.Keywords: membrane-associated guanylate kinase inverted repeat member 1, glioma, proliferation, migration, invasion
