SULF2 and non-small cell lung carcinoma: Importantly, our analyses revealed that SULF2 protein is significantly elevated in plasmas of NSCLC patients with SULF2 positive tumors (Mean ±SEM = 1108.0 ±125.5 pg/ml), as compared with NSCLC patients with SULF2 negative tumors (Mean ±SEM = 489.3 ±131.4 pg/ml) (p = 0.0003) (Fig 3C).