We further examined PLPP4 expression in our 5 paired ADC tissues, 2 paired SQC tissues and 1 lung adenosquamous carcinoma tissue (Mix: P3) and found that the mRNA and protein expression levels of PLPP4 were differentially elevated in tumor tissues compared with those in the respective ANT (Fig. 1g and h). The gene discussed is PLPP4; the disease is adenosquamous carcinoma.