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Article

Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma

  • Authors:
    • Yan-Jie He
    • Jing Zhou
    • Tong-Feng Zhao
    • Liang-Shan Hu
    • Jing-Ying Gan
    • Lan Deng
    • Yuhua Li
  • View Affiliations / Copyright

    Affiliations: Department of Hematology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
  • Pages: 662-668
    |
    Published online on: June 10, 2013
       https://doi.org/10.3892/mmr.2013.1514
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Abstract

Cancer vaccines are an effective way to prevent the occurrence of cancer. Epidermal growth factor receptor pathway substrate 8 (Eps8) is a novel tumor-associated antigen, which is overexpressed in the majority of tumor types. In the present study, the Eps8 protein was cloned and characterized, and its feasibility as an antitumor agent in murine breast carcinoma was investigated. The results revealed that the Eps8 protein increased the secretion of interleukin (IL)-12 in the culture supernatant of dendritic cells (DCs). The Eps8 protein‑pulsed DCs induced significant cytotoxic T lymphocyte (CTL) responses, T-cell proliferation and a higher level of interferon (IFN)-γ in the culture supernatant of the splenocytes ex vivo. Additionally, when the mice were immunized with the Eps8 vaccine, this resulted in a regression of 4T1 breast tumors and significantly prolonged survival time in the tumor‑bearing mice compared with that in the phosphate-buffered saline (PBS) control group. The Eps8 vaccine induced higher CTL responses in the splenocytes of mice vaccinated against the 4T1 cells; the ratio of CD4+/CD8+ T cells was increased in the Eps8 group; and the percentage of CD4+CD25+ FoxP3+ regulatory T (Treg) cells in the Eps8 group was significantly lower compared with that of the PBS group. The results suggested that the Eps8 vaccine was able to stimulate antitumor effects against 4T1 breast cancer cells in vitro and in vivo, and it may provide a potential immunotherapeutic agent for the treatment of breast cancer.
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Copy and paste a formatted citation
Spandidos Publications style
He Y, Zhou J, Zhao T, Hu L, Gan J, Deng L and Li Y: Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma. Mol Med Rep 8: 662-668, 2013.
APA
He, Y., Zhou, J., Zhao, T., Hu, L., Gan, J., Deng, L., & Li, Y. (2013). Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma. Molecular Medicine Reports, 8, 662-668. https://doi.org/10.3892/mmr.2013.1514
MLA
He, Y., Zhou, J., Zhao, T., Hu, L., Gan, J., Deng, L., Li, Y."Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma". Molecular Medicine Reports 8.2 (2013): 662-668.
Chicago
He, Y., Zhou, J., Zhao, T., Hu, L., Gan, J., Deng, L., Li, Y."Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma". Molecular Medicine Reports 8, no. 2 (2013): 662-668. https://doi.org/10.3892/mmr.2013.1514
Copy and paste a formatted citation
x
Spandidos Publications style
He Y, Zhou J, Zhao T, Hu L, Gan J, Deng L and Li Y: Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma. Mol Med Rep 8: 662-668, 2013.
APA
He, Y., Zhou, J., Zhao, T., Hu, L., Gan, J., Deng, L., & Li, Y. (2013). Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma. Molecular Medicine Reports, 8, 662-668. https://doi.org/10.3892/mmr.2013.1514
MLA
He, Y., Zhou, J., Zhao, T., Hu, L., Gan, J., Deng, L., Li, Y."Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma". Molecular Medicine Reports 8.2 (2013): 662-668.
Chicago
He, Y., Zhou, J., Zhao, T., Hu, L., Gan, J., Deng, L., Li, Y."Eps8 vaccine exerts prophylactic antitumor effects in a murine model: A novel vaccine for breast carcinoma". Molecular Medicine Reports 8, no. 2 (2013): 662-668. https://doi.org/10.3892/mmr.2013.1514
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