Figure 1

Relative GAS5 expression in gastric cancer tissues and its clinical significance. (A) Relative expression of GAS5 in gastric cancer tissues (n = 89) in comparison with corresponding non-tumor normal tissues (n = 89). GAS5 expression was examined by qRT-PCR and normalized to GAPDH expression. Data was presented as fold-change in tumor tissues relative to normal tissues. The red column was defined as overexpression, while the blue as underexpression. (B) According to the median ratio of relative GAS5 expression (0.38) in tumor tissues, GAS5 expression was classified into two groups: relative high-GAS5 group (n = 45, blue column) and relative low-GAS5 group (n = 44, red column). (C, D) Kaplan-Meier disease-free survival and overall survival curves according to GAS5 expression level.