PPARD and cancer: Considering the relationship between the status of PPARδ expression and the clinical and pathological features of NSCLS, in our research we didn’t observe any differences in PPARδ expression depending on the gender or age of the subjects, the number of cigarettes smoked out presented in pack years, the stage of the cancer according to TNM and AJCC classifications, as well as the histological subtype of the cancer (SCC vs. AC).