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BACKGROUND LINK-A lncRNA acts as an oncogene in triple-negative breast cancer, but its involvement in other diseases is unknown. The present study was performed to investigate the involvement of LINK-A lncRNA in mantle cell lymphoma. MATERIAL AND METHODS Expressions of LINK-A lncRNA and survivin in plasma of patients with mantle cell lymphoma and healthy controls were detected by qRT-PCR and ELISA, respectively. ROC curve analysis was performed to investigate the diagnostic value of LINK-A lncRNA for mantle cell lymphoma. Correlations between plasma level of LINK-A lncRNA and survivin were analyzed by Pearson correlation coefficient. LINK-A lncRNA shRNA and expression vector were transfected into cells of human mantle cell lymphoma cell lines, followed by detection of cell proliferation, cell apoptosis, and survivin expression by cell proliferation assay, cell apoptosis assay, and Western blot analysis, respectively. RESULTS We found that, compared with healthy controls, plasma levels of LINK-A lncRNA and survivin were significantly increased in patients with mantle cell lymphoma. Upregulation of LINK-A lncRNA sensitively distinguished patients with mantle cell lymphoma from healthy controls. Plasma levels of LINK-A lncRNA and survivin were positively correlated in mantle cell lymphoma patients but not in healthy controls. CONCLUSIONS LINK-A lncRNA overexpression promoted cell proliferation, inhibited cell apoptosis, and upregulated survivin expression, while LINK-A lncRNA knockdown had the opposite effect.

LINK-A lncRNA Promotes Proliferation and Inhibits Apoptosis of Mantle Cell Lymphoma Cell by Upregulating Survivin