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Long non-coding RNA Sox4 promotes proliferation and migration by activating Wnt/β-catenin signaling pathway in osteosarcoma. 2017

Zhoubin Tian, and Guang Yang, and Peng Jiang, and Laibo Zhang, and Jian Wang, and Shui Sun

Osteosarcoma is a bone tumor without effective treatment in the world. Recently, long non-coding RNAs (lncRNAs) are considered as essential regulators in cancer progression. LncSox4 plays crucial roles in liver tumor-initiating cells self-renewal and tumor initiation. However, the effect of lncSox4 in osteosarcoma remains largely unclear. Quantitative real-time PCR (qRT-PCR) and Northern blot were performed to detect lncSox4 expressions in osteosarcoma. The functions of lncSox4 in osteosarcoma were determined using cell viability and migration assays. In addition, the proteins associated with lncSox4 were further evaluated by western blot. We found that lncSox4 was expressed highly in U-20S and Mg63 cells and osteosarcoma tumor tissues (all P < 0.001). LncSox4 silencing attenuated but lncSox4 overexpression promoted cell viability (all P < 0.001) and migration (P < 0.01) in the Mg63 cells. Next, we found lncSox4 regulation of osteosarcoma is involved in β-catenin, and overexpression of lncSox4 could stable β-catenin expression. Further, Wnt agonist CID11210285 completely abolished the decrease of Mg63 cells viability induced by lncSox4 silencing when cells cultured for 3 and 4 days (both P < 0.01), while Wnt inhibitor IWP-3 abolished the increase of Mg63 cells viability induced by overexpression of lncSox4 after treatment for 2 (P < 0.01), 3 (P < 0.001) and 4 (P < 0.01) days. Our study offers evidence for the first time that lncSox4 plays a positive role in osteosarcoma development and progression, and could act as a potential prognostic and therapy biomarker.

UI MeSH Term Description Entries
D008297 Male Males
D001859 Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. Bone Cancer,Cancer of Bone,Cancer of the Bone,Neoplasms, Bone,Bone Neoplasm,Neoplasm, Bone
D002465 Cell Movement The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell. Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012516 Osteosarcoma A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed) Sarcoma, Osteogenic,Osteogenic Sarcoma,Osteosarcoma Tumor,Osteogenic Sarcomas,Osteosarcoma Tumors,Osteosarcomas,Sarcomas, Osteogenic,Tumor, Osteosarcoma,Tumors, Osteosarcoma
D015152 Blotting, Northern Detection of RNA that has been electrophoretically separated and immobilized by blotting on nitrocellulose or other type of paper or nylon membrane followed by hybridization with labeled NUCLEIC ACID PROBES. Northern Blotting,Blot, Northern,Northern Blot,Blots, Northern,Blottings, Northern,Northern Blots,Northern Blottings
D015972 Gene Expression Regulation, Neoplastic Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action in neoplastic tissue. Neoplastic Gene Expression Regulation,Regulation of Gene Expression, Neoplastic,Regulation, Gene Expression, Neoplastic

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