Figure 1. KLF4 and hTERT expression in lung tumor specimens and their correlation with patient outcomes.

(A) Lower KLF4 levels were observed in lung tumor tissues compared with normal adjacent tissues. KLF4 expression is stained as brown. (B) Shown are representative images of KLF4 and hTERT staining using immunohistochemical staining for three different cases. (C) Correlation between the KLF4 and hTERT expression levels in lung carcinoma tissues obtained from 80 patients.