Long Non-Coding Rna Hulc Promotes Progression Of Bone Neoplasms

Background: Bone neoplasms are common in humans and have high lethality. Recently, great progress has been made in understanding the pathophysiological mechanisms, but little is known about the molecular and genetic networks involved.Material/Methods: qRT-PCR assays were conducted to detect the expression levels of IncRNA HULC in various cell lines. MTT as-say, Transwell assay, and wound-healing assay were performed to investigate the proliferation speed, invasion ability, and migration ability of each cell line, respectively. Western blot analysis was also done to assess the expression level of EMT-related factors. Statistical analysis was performed using the t test, Kaplan-Meier method, and log-rank test.Results: Compared to the human normal bone cell line, we found IncRNA HULC was over-expressed in all 6 bone neoplasm cell lines, and we finally chose HT1080 and Saos-2 cell lines, which possessed the highest IncRNA HULC expression level, for the subsequent studies. We then observed that the expression level of IncRNA HULC was negatively correlated with overall survival rate of bone neoplasm patients, which means that IncRNA HULC has prognostic value in patients with bone neoplasms. Thus, we assessed the influence of IncRNA HULC down-regulation on proliferation, invasion, and migration abilities of bone neoplasm cells, and found a significant decrease in these abilities. Finally, we found that down-regulating IncRNA HULC led to decreased expression of EMT-related factors in bone neoplasm cells.Conclusions: LncRNA HULC can promote the tumorigenesis of bone neoplasms through increasing the proliferation, invasion, and migration abilities and the expression level of EMT-related factors.