Open Access

Intraperitoneal neutrophils activated by KRAS-induced ovarian cancer exert antitumor effects by modulating adaptive immunity

  • Authors:
    • Mitsuyo Yoshida
    • Ayumi Taguchi
    • Kei Kawana
    • Juri Ogishima
    • Katsuyuki Adachi
    • Akira Kawata
    • Hiroe Nakamura
    • Masakazu Sato
    • Asaha Fujimoto
    • Tomoko Inoue
    • Kensuke Tomio
    • Mayuyo Mori
    • Takeshi Nagamatsu
    • Takahide Arimoto
    • Kaori Koga
    • Osamu Wada Hiraike
    • Katsutoshi Oda
    • Tohru Kiyono
    • Yutaka Osuga
    • Tomoyuki Fujii
  • View Affiliations

  • Published online on: July 26, 2018     https://doi.org/10.3892/ijo.2018.4504
  • Pages: 1580-1590
  • Copyright: © Yoshida et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Increased neutrophil counts are a hallmark of a poor prognosis for cancer. We previously reported that KRAS promoted tumorigenesis and increased neutrophil counts in a mouse peritoneal cancer model. In the current study, we evaluated the role of increased neutrophils in cancer progression, as well as their influence on the intraperitoneal microenvironment. A mouse peritoneal cancer model was established using the KRAS-transduced mouse ovarian cancer cell line, ID8-KRAS. Neutrophil function was assessed by neutrophil depletion in ID8-KRAS mice. Neutrophil depletion markedly accelerated tumor formation; this was accompanied by an increase in interleukin-6 concentrations in ascites. Neutrophil depletion significantly decreased the amount of local and systemic CD8+ T cells, while increasing the amount of local CD4+ T cells, accompanied by an increased amount of monocytic myeloid-derived suppressor cells (M-MDSCs) and regulatory T cells (Tregs) (P<0.05). The roles of peritoneal neutrophils (PENs) in CD8+ T cell activation were assessed in vitro. PENs of ID8-KRAS mice had a strong potential to enhance T cell proliferation with a higher expression of the T cell costimulatory molecules OX40 ligand (OX40L) and 4-1BB ligand (4-1BBL), as compared with peripheral blood neutrophils (PBNs). These findings suggest that neutrophils recruited into the KRAS-induced tumor microenvironment (TME) have antitumor properties with the potential to modulate the numbers of M-MDSCs and Tregs and activate CD8+ T cells through T cell costimulatory molecules.
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October-2018
Volume 53 Issue 4

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Yoshida M, Taguchi A, Kawana K, Ogishima J, Adachi K, Kawata A, Nakamura H, Sato M, Fujimoto A, Inoue T, Inoue T, et al: Intraperitoneal neutrophils activated by KRAS-induced ovarian cancer exert antitumor effects by modulating adaptive immunity. Int J Oncol 53: 1580-1590, 2018
APA
Yoshida, M., Taguchi, A., Kawana, K., Ogishima, J., Adachi, K., Kawata, A. ... Fujii, T. (2018). Intraperitoneal neutrophils activated by KRAS-induced ovarian cancer exert antitumor effects by modulating adaptive immunity. International Journal of Oncology, 53, 1580-1590. https://doi.org/10.3892/ijo.2018.4504
MLA
Yoshida, M., Taguchi, A., Kawana, K., Ogishima, J., Adachi, K., Kawata, A., Nakamura, H., Sato, M., Fujimoto, A., Inoue, T., Tomio, K., Mori, M., Nagamatsu, T., Arimoto, T., Koga, K., Hiraike, O. W., Oda, K., Kiyono, T., Osuga, Y., Fujii, T."Intraperitoneal neutrophils activated by KRAS-induced ovarian cancer exert antitumor effects by modulating adaptive immunity". International Journal of Oncology 53.4 (2018): 1580-1590.
Chicago
Yoshida, M., Taguchi, A., Kawana, K., Ogishima, J., Adachi, K., Kawata, A., Nakamura, H., Sato, M., Fujimoto, A., Inoue, T., Tomio, K., Mori, M., Nagamatsu, T., Arimoto, T., Koga, K., Hiraike, O. W., Oda, K., Kiyono, T., Osuga, Y., Fujii, T."Intraperitoneal neutrophils activated by KRAS-induced ovarian cancer exert antitumor effects by modulating adaptive immunity". International Journal of Oncology 53, no. 4 (2018): 1580-1590. https://doi.org/10.3892/ijo.2018.4504