AXL and adenocarcinoma: The multivariate regression analysis revealed that the presence of CTC3 (HR = 10.8, 95% CI = 1.54–76.4, p = 0.017) and high AXL expression (HR = 15.7, 95% CI = 1.63–150.7, p = 0.017) were the only independent prognostic factors for OS in adenocarcinoma patients (Table 2).