CEACAM5 and neoplasm: In this study, we focus on the survival benefits of NK cells immunotherapy and clinical utility of tumor markers CEA, alpha-fetoprotein, CA15-3, CA12-5, CA19-9, CA72-4, human chorionic gonadotropin, neuron-specific enolase, and potential blood biomarkers of T-cell subsets in monitoring response and predicting the prognosis of the patient.