Abstract | OBJECTIVE: METHODS: A total of 43 patients with advanced colorectal cancer were included. Patients who received FOLFOX chemotherapy (Group A, n=22) were compared to those who did not(Group B, n=21). Blood was obtained from peripheral vein before chemotherapy (T0), at the time of completion of chemotherapy (T1), and 3 months after completion of chemotherapy (T2) to detect the percentage of regulatory T lymphocytes (CD4+CD25+Foxp3+T cells) in total T lymphocytes using fluorescence activated cell sorter (FACS). The level of Th1/Th2 cytokines in the serum including interleukin-2 (IL-2), interleukin-4 (IL-4), interleukin-10 (IL-10) and interferon-γ (IFN-γ) were detected by enzyme-linked immunoabsorbent assay(ELISA). RESULTS: The percentage of regulative T lymphocyte was significantly lower at T1, which increased after chemotherapy but was still lower than that at T0 and that in Group B [(4.15±0.56)%, (5.60±0.88)%, and(5.38±0.92)%, all P<0.01]. The levels of IL-4, IL-10 decreased at T1, and increased to the normal level at T2 compared with those at T0 or those in the control group (all P<0.01). In contrast, the levels of IL-2 and IFN-γ increased significantly at T1 and decreased to the normal level at T2 during the entire observation period. CONCLUSION: For patients with advanced colorectal cancer, FOLFOX chemotherapy can decrease the proportion of regulatory T lymphocytes and results in Th1/Th2 cytokine drift to Th1 type. Therefore, FOLFOX may help the release from the anticancer immune inhibition.
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Authors | Chang-xin Huang, Zhao-yang Li, Yi-qian Jiang, Guang-liang Duan, Qing-qing Wang |
Journal | Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery
(Zhonghua Wei Chang Wai Ke Za Zhi)
Vol. 13
Issue 9
Pg. 661-3
(Sep 2010)
ISSN: 1671-0274 [Print] China |
PMID | 20878571
(Publication Type: Controlled Clinical Trial, English Abstract, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Interleukin-2
- Organoplatinum Compounds
- Interleukin-10
- Interleukin-4
- Leucovorin
- Fluorouracil
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Topics |
- Adult
- Aged
- Antineoplastic Combined Chemotherapy Protocols
- Colorectal Neoplasms
(drug therapy, immunology)
- Female
- Fluorouracil
- Humans
- Interleukin-10
(blood)
- Interleukin-2
(blood)
- Interleukin-4
(blood)
- Leucovorin
- Male
- Middle Aged
- Organoplatinum Compounds
- T-Lymphocytes, Regulatory
(immunology)
- Th1 Cells
(immunology)
- Th2 Cells
(immunology)
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