SIPA1 and lung cancer: This showed that high expression of SIPA1 was statistically correlated with worse post-progression survival (PPS) (p = 0.02) in all of the lung cancer patients (Figure 1C), while there was no statistically significant correlation of SIPA1 expression level with overall survival (OS) (p = 0.46) or progression-free survival (PFS) (p = 0.071) (data not shown).