Figure 1

Expression of survivin and HIF-1α in NSCLC and benign lung disease tissues. Survivin and HIF-lα protein were detected and localised within paraffin-embedded human lung tissue using immunohistochemistry. A and B represent the negative expression of survivin protein and HIF-1α protein, respectively, in benign lung disease tissues. C and D represent the positive expression (arrow) of survivin protein and HIF-1α protein, respectively, in NSCLC,. E: The graph shows the statistical results. 81.60% (98/120) of lung cancer tissue samples were positive for survivin staining, and 58.33% (70/120_) of lung cancer tissue samples were positive for HIF-1α staining. ** p < 0.01.