期刊
CANCER IMMUNOLOGY IMMUNOTHERAPY
卷 61, 期 12, 页码 2251-2259出版社
SPRINGER
DOI: 10.1007/s00262-012-1289-2
关键词
Gastric cancer; Cytokine-induced killer cells; Chemotherapy; Adjuvant; Immunotherapy
资金
- National Natural Science Foundation of China [81171653, 30950022, 30972703]
- Society Developing Plans, Department of Science and Technology Changzhou [WZ200824, BS20092019]
To determine the long-term efficacy of adjuvant immunotherapy with autologous cytokine-induced killer (CIK) cells for locally advanced gastric cancer patients. One hundred and fifty-one patients with stage III/IV gastric cancer who had undergone gastrectomy were enrolled, assigned to two groups (immunotherapy group versus no immunotherapy group/or control group), and followed. The 5-year overall survival (OS) and 5-year disease-free survival (DFS) rates for immunotherapy versus control group were 32.4 versus 23.4 % (P = 0.071) and 28.3 versus 10.4 % (P = 0.044), respectively. For patients with intestinal-type tumors, the 5-year OS and DFS rates were significantly higher for immunotherapy (OS, 46.8 vs. 31.4 % and P = 0.045; DFS, 42.4 vs. 15.7 % and P = 0.023). In the immunotherapy group, the mean CD3(+) level, CD4(+) level, and CD4(+)/CD8(+) ratio increased from 50.8, 26.5, and 0.9 %, respectively, at baseline to 62.6, 35.0, and 1.4 %, respectively, 1 week after the first CIK-cell treatment, returned to baseline after 2 months, and maintained a higher level (60.7 +/- A 8.2 %, 34.2 +/- A 7.1 %, and 1.3 +/- A 0.3 %, respectively) 2 months after 3 cycles of immunotherapy. Adjuvant immunotherapy with CIK cells prolongs DFS in patients with locally advanced gastric cancer and significantly improves OS in patients with intestinal-type tumors. Intestinal-type tumors could be selected as an important indication for CIK-cell therapy. This treatment may help improve T-lymphocyte subset distribution and improve the host's immune functions, but multiple cycles are necessary for long-term therapeutic efficacy.
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