FSCN1 and lung cancer: The relationship between age and serum levels of FSCN1 was contradictory as well with FSCN1 expression in neoplastic tissue of lung cancer that reported statistically significant differences among patients’ age groups (≤61 vs >61 years; p = 0.032), while no significant differences were reported in age groups for NSCLC patients (p > 0.05) [63,64].