JOURNAL ARTICLE

Adoptive immunotherapy of cytokine-induced killer cell therapy in the treatment of non-small cell lung cancer

Min Wang, Jun-Xia Cao, Jian-Hong Pan, Yi-Shan Liu, Bei-Lei Xu, Duo Li, Xiao-Yan Zhang, Jun-Li Li, Jin-Long Liu, Hai-Bo Wang, Zheng-Xu Wang
PloS One 2014, 9 (11): e112662
25412106

AIM: The aim of this study was to systemically evaluate the therapeutic efficacy of cytokine-induced killer (CIK) cells for the treatment of non-small cell lung cancer.

MATERIALS AND METHODS: A computerized search of randomized controlled trials for CIK cell-based therapy was performed. The overall survival, clinical response rate, immunological assessment and side effects were evaluated.

RESULTS: Overall, 17 randomized controlled trials of non-small cell lung cancer (NSCLC) with a total of 1172 patients were included in the present analysis. Our study showed that the CIK cell therapy significantly improved the objective response rate and overall survival compared to the non-CIK cell-treated group. After CIK combined therapy, we observed substantially increased percentages of CD3+, CD4+, CD4+CD8+, CD3+CD56+ and NK cells, whereas significant decreases were noted in the percentage of CD8+ and regulatory T cell (Treg) subgroups. A significant increase in Ag-NORs was observed in the CIK-treated patient group (p = 0.00001), whereas carcinoembryonic antigen (CEA) was more likely to be reduced to a normal level after CIK treatment (p = 0.0008). Of the possible major side effects, only the incidence of fever in the CIK group was significantly higher compared to the group that received chemotherapy alone.

CONCLUSION: The CIK cell combined therapy demonstrated significant superiority in the overall survival, clinical response rate, and T lymphocytes responses and did not present any evidence of major adverse events in patients with NSCLC.

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