STAT1 RNA and protein expression in NSCLC lung samples. (A and B) qPCR-based analysis of STAT1A mRNA expression in lung tissue samples from the tumoral, peri-tumoral and control region of patients with ADC and SCC (ADC: NControl=16, NPeri-tumoral=15, NTumoral=16; SCC: NControl=17, NPeri-tumoral=17, NTumoral=17). (C and D) qPCR-based analysis of STAT1B mRNA expression in lung tissue samples from the tumoral, peri-tumoral and control region of patients with ADC and SCC (ADC: NControl=15, NPeri-tumoral=13, NTumoral=15; SCC: NControl=16, NPeri-tumoral=14, NTumoral=16). (E) IHC staining of STAT1+ cells was performed on paraffin-embedded tissue sections from the control and the tumoral region of the lungs of patients with ADC and SCC as well as from the lungs of control subjects without lung tumour. (F) IHC staining was performed on cryospins of A549 human adenocarcinoma cell line. Data are shown as mean values±s.e.m. using Student's t-test *P=0.05.