A Case of Prostate Cancer with Multiple Bone Metastases in which Standard Treatment was Ineffective but Remission was Achieved with Amplified Natural Killer Cell Therapy, and the Usefulness of PD-L1 Positivity as a Biomarker for Solid Tumors
1. Abstract Amplified natural killer (ANK) therapy is a treatment that improves the safety and efficacy of the original (LAK) immunotherapy.