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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Teng, Honglin Zhou, Weiwei Xu, Jian Chu, Jianjun Xiao, Jianru Shi, Guodong Liu, Tielong Cai, Bing Wang, Yan |
| Description | Author Affiliation: Liu T ( Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China.); Zhou W ( Department of Radiology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China.); Cai B ( Department of Orthopedics, Ningbo Development Zone Center Hospital, Ningbo, Zhejiang 315800, P.R. China.); Chu J ( Department of Orthopedics, First People's Hospital of Hefei, Hefei, Anhui 230061, P.R. China.); Shi G ( Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China.); Teng H ( Department of Orthopedics, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China.); Xu J ( Department of Orthopedics, The Workers Hospital of Suqian City, Suqian, Jiangsu 223800, P.R. China.); Xiao J ( Department of Orthopedics, Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China.); Wang Y ( Department of Orthopedics, Chinese People's Liberation Army General Hospital, Beijing 100853, P.R. China.) |
| Abstract | Osteosarcoma (OS) is the most frequent type of primitive malignant bone tumor with a poor prognosis due to distant metastasis. Our previous studies have demonstrated that IRX2 is overexpressed and is important in cell proliferation and invasion. However, the molecular mechanisms underlying the IRX2dependent regulation of OS progression remains to be elucidated. In the present study, the effects of IRX2 on the upregulation of MMP2 and VEGF in OS were determined by western blotting, and the underlying molecular mechanisms were elucidated. These findings provided data suggesting that IRX2 modulates the expression levels of MMP2 and VEGF in an AKTdependent manner. The overexpression of IRX2 promoted the activation of PI3K/Akt and increased the proliferation and invasiveness of the OS cell lines as shown by CCK8 and invasion assays. Notably, interruption of the AKT pathway by treatment with LY294002, a specific PI3K inhibitor, attenuated IRX2induced cell proliferation and invasive ability, and the upregulation of MMP2 and VEGF. The results of the present study suggested that inhibition of the IRX2mediated AKT signaling pathway may be a suitable therapeutic target for the treatment of OS. |
| ISSN | 17912997 |
| e-ISSN | 17913004 |
| Journal | Molecular Medicine Reports |
| Issue Number | 3 |
| Volume Number | 12 |
| Language | English |
| Publisher | Spandidos Publications |
| Publisher Date | 2015-09-01 |
| Publisher Place | Greece |
| Access Restriction | Open |
| Subject Keyword | Bone Neoplasms Metabolism Homeodomain Proteins Physiology Matrix Metalloproteinase 9 Osteosarcoma Transcription Factors Vascular Endothelial Growth Factor A Cell Line, Tumor Cell Proliferation Enzyme Induction Gene Expression Regulation, Neoplastic Genetics Neoplasm Invasiveness Phosphatidylinositol 3-kinases Proto-oncogene Proteins C-akt Signal Transduction Up-regulation Discipline Molecular Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Biochemistry Molecular Biology Cancer Research Molecular Medicine Oncology |
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