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Ying Mu,1,* Wei-hua Wang,2,* Jia-ping Xie,1 Ying-xin Zhang,2 Ya-pei Yang,2 Chang-hui Zhou2 1Department of Gastroenterology, 2Department of Central Laboratory, Liaocheng People’s Hospital, Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong Province, People’s Republic of China *These authors contributed equally to this work Background: Cellular immunotherapy has been widely used in the treatment of solid tumors. However, the clinical application of cord blood-derived dendritic cells and cytokine-induced killer cells (CB-DC-CIK) for the treatment of gastric cancer has not been frequently reported. In this study, the efficacy and safety of CB-DC-CIK for the treatment of gastric cancer were evaluated both in vitro and in vivo. Methods: The phenotypes, cytokines, and cytotoxicity of CB-DC-CIK were detected in vitro. Patients with advanced gastric cancer were divided into the following two groups: the experimental group (CB-DC-CIK combined with chemotherapy) and the control group (chemotherapy alone). The curative effects and immune function were compared between the two groups. Results: First, the results showed that combination therapy significantly increased the overall disease-free survival rate (P=0.0448) compared with chemotherapy alone. The overall survival rate (P=0.0646), overall response rate (P=0.410), and disease control rate (P=0.396) were improved in the experimental group, but these changes did not reach statistical significance. Second, the percentage of T-cell subsets (CD4+, CD3-CD56+, and CD3+CD56+) and the levels of IFN-γ, TNF-α, and IL-2, which reflect immune function, were significantly increased (P |
