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Liu S, Li J, Kang L, Tian Y, Xue Y. Degradation of long non-coding RNA-CIR decelerates proliferation, invasion and migration, but promotes apoptosis of osteosarcoma cells. Cancer Cell Int 2019; 19:349. [PMID: 31889901 PMCID: PMC6929366 DOI: 10.1186/s12935-019-1076-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/16/2019] [Indexed: 01/02/2023] Open
Abstract
Background Over the years, long non-coding RNAs (lncRNAs) have been clarified in malignancies, this research was focused on the role of lncRNA cartilage injury-related (lncRNA-CIR) in osteosarcoma cells. Methods LncRNA-CIR expression in osteosarcoma tissues and cells, and adjacent normal tissues and normal osteoblasts was determined, then the relations between lncRNA-CIR expression and the clinicopathological features, and between lncRNA-CIR expression and the prognosis of osteosarcoma patients were analyzed. Moreover, the MG63 and 143B cells were treated with silenced or overexpressed lncRNA-CIR, and then the proliferation, invasion, migration and apoptosis of the cells were evaluated by gain- and loss-of-function approaches. The tumor growth, and proliferation and apoptosis of osteosarcoma cells in vivo were observed by subcutaneous tumorigenesis in nude mice. Results We have found that lncRNA-CIR was up-regulated in osteosarcoma tissues and cells, which was respectively relative to adjacent normal tissues and normal osteoblasts. The expression of lncRNA-CIR was evidently correlated with disease stages, distant metastasis and differentiation of osteosarcoma patients, and the high expression of lncRNA-CIR indicated a poor prognosis. Furthermore, the reduction of lncRNA-CIR could restrict proliferation, invasion and migration, but promote apoptosis of osteosarcoma cells in vitro. Meanwhile, inhibited lncRNA-CIR also restrained tumor growth and osteosarcoma cell proliferation, whereas accelerated apoptosis of osteosarcoma cells in vivo. Conclusion We have found in this study that the inhibited lncRNA-CIR could decelerate proliferation, invasion and migration, but accelerate apoptosis of osteosarcoma cells, which may provide a novel target for osteosarcoma treatment.
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Affiliation(s)
- Shiwei Liu
- 1Department of Orthopaedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China.,2Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China
| | - Jingchao Li
- 1Department of Orthopaedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China.,2Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China
| | - Liang Kang
- 1Department of Orthopaedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China.,2Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China
| | - Yueyang Tian
- 1Department of Orthopaedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China.,2Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China
| | - Yuan Xue
- 1Department of Orthopaedics, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China.,2Tianjin Key Laboratory of Spine and Spinal Cord, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052 China
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