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Published in: Cancer Immunology, Immunotherapy 2/2010

01-02-2010 | Original Article

The immunologic aspects in advanced ovarian cancer patients treated with paclitaxel and carboplatin chemotherapy

Authors: Xia Wu, Qin-Mei Feng, Ying Wang, Jun Shi, Hai-Liang Ge, Wen Di

Published in: Cancer Immunology, Immunotherapy | Issue 2/2010

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Abstract

Till now, little is known about the effects of chemotherapy on the immunity of cancer patients and the ideal timing (“window” period) for immunotherapy combined with chemotherapy. In this study, we addressed the immunogenicity of apoptotic ovarian cancer cells induced by paclitaxel and carboplatin, the immunologic aspects in ovarian cancer patients under chemotherapy, and the CTL response when CD8+ T cells were stimulated with tumor antigen in the “window” period. The immunogenicity of apoptotic ovarian cancer cells was detected first. Then, blood samples from each ovarian cancer patient were obtained before (S0) and at days 5–7 (S1), days 12–14 (S2) and days 25–28 (S3) after chemotherapy. The proportions of immunocyte subsets and the function of NK cells were studied. We found that apoptotic ovarian cancer cells elicited a powerful CTL response with antitumor activity in vitro. The proportions of CD3+ T cells, CD4+ T cells and the ratio of CD4+ to CD8+ cells did not change significantly on S1, S2 and S3, compared to S0, whereas the percentage of Treg cells decreased remarkably on S2. The proportions of Th1, Tc1, CD45RO memory T, NKT cells and the ratio of Tc1 to Tc2 cells increased significantly on S2. IFN-γ secreting CD8+ T cells also increased remarkably on S2, especially when CD8+ T cells were stimulated with autologous tumor antigen. From our point of view, chemotherapy induces temporary immune reconstitution and augments anti-tumor immune response. It is probable that the “window” period of days 12–14 after chemotherapy provides the best opportunity for immunotherapy.
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Metadata
Title
The immunologic aspects in advanced ovarian cancer patients treated with paclitaxel and carboplatin chemotherapy
Authors
Xia Wu
Qin-Mei Feng
Ying Wang
Jun Shi
Hai-Liang Ge
Wen Di
Publication date
01-02-2010
Publisher
Springer-Verlag
Published in
Cancer Immunology, Immunotherapy / Issue 2/2010
Print ISSN: 0340-7004
Electronic ISSN: 1432-0851
DOI
https://doi.org/10.1007/s00262-009-0749-9

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