Figure 1. MIR503HG expression was down-regulated in ovarian cancer cells and tissues. (A) GEPIA online database was used to analyze the expression of MIR503HG in ovarian cancer tissues and adjacent normal tissues. (B) MIR503HG expression in 45 paired ovarian cancer tissues (n = 45) and adjacent normal tissues (n = 45) was measured with RT-qPCR. (C) MIR503HG expression in ovarian cancer cell lines (OVCAR3, A2780, SKOV3, and HeyA8) and normal human ovarian epithelial cells (IOSE80) was detected. *P < 0.05. Each test was repeated at least three times independently.