Abstract
Adoptive cell therapy (ACT) is a promising treatment that is considered safe and efficient. Natural killer (NK) cells play an important role in the innate immune system and destroy target cells such as tumor cells without prior sensitization. Here, we report a 59-year-old man with advanced diffuse hepatocellular carcinoma (HCC) who underwent 17 courses of NK cell treatment from March 2017 to July 2018. Although he presented with progressive disease, his hydrothorax and ascites decreased, and his state of mind, appetite and quality of life were markedly improved after treatment versus at admission. To date, his survival time is >48 months. Here, we provide evidence that NK cell adoptive therapy has no adverse effects, enhances immune function, and improves the quality of life of patients with HCC.