SFPQ and lung carcinoma: When we examined SFPQ expression in NSC lung cancer-MSCs and control MSCs, we confirmed that the expression of SFPQ in mRNA and protein level was significantly higher in NSC lung cancer-MSCs than the controls by RT-PCR and western blot analysis (Figures 2B, C), indicating the SFPQ may be an important potential functional biomarker for NSC lung cancer.