MAP4 and lung adenocarcinoma: Kaplan‒Meier survival curves showed that high expression of MAP4 was associated with poor OS in patients with lung adenocarcinoma in the overall population (Fig. 2D, P< 0.0001), training cohort (Fig. 2E, P = 0.0034) and validation cohort (Fig. 2F,  P < 0.0001).