Open Access

Pulmonary tumors associated with the JC virus T-antigen in a transgenic mouse model

  • Authors:
    • Akira Noguchi
    • Keiji Kikuchi
    • Takashi Ohtsu
    • Mitsuyo Yoshiwara
    • Yoshiyasu Nakamura
    • Yohei Miyagi
    • Huachuan Zheng
    • Yasuo Takano
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  • Published online on: October 2, 2013     https://doi.org/10.3892/or.2013.2782
  • Pages: 2603-2608
  • Copyright: © Noguchi et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Many attempts to demonstrate the oncogenic role of the JC virus (JCV) have been partially successful in producing brain tumors, either by direct inoculation of JCV into the brain or in transgenic models in rodents. We previously reported the presence of JCV DNA with a relatively high incidence in pulmonary and digestive organs. However, we could not prove the oncogenic role of JCV. We prepared a transgene composed of the K19 promoter, specific to bronchial epithelium with the JCV T-antigen and established transgenic (TG) mice. Pulmonary tumors were detected without any metastasis in 2 out of 15 (13.3%) 16-month-old K19/JCV T-antigen TG mice. Using immunohistochemistry (IHC), these tumors showed JCV T-antigen, p53 and CK 19 expression, but not expression of nuclear and cytoplasmic β-catenin and insulin receptor substrate 1 (IRS1). IHC revealed the same expression pattern as in the bronchial epithelium of the TG mice. One tumor, which was examined with laser capture microdissection and molecular biological tools, demonstrated an EGFR mutation but not a K-ras mutation. We propose that the pulmonary tumors were derived from the JCV T-antigen in a TG mouse model. These findings shed light on pulmonary carcinogenesis.
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December 2013
Volume 30 Issue 6

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Noguchi A, Kikuchi K, Ohtsu T, Yoshiwara M, Nakamura Y, Miyagi Y, Zheng H and Takano Y: Pulmonary tumors associated with the JC virus T-antigen in a transgenic mouse model. Oncol Rep 30: 2603-2608, 2013.
APA
Noguchi, A., Kikuchi, K., Ohtsu, T., Yoshiwara, M., Nakamura, Y., Miyagi, Y. ... Takano, Y. (2013). Pulmonary tumors associated with the JC virus T-antigen in a transgenic mouse model. Oncology Reports, 30, 2603-2608. https://doi.org/10.3892/or.2013.2782
MLA
Noguchi, A., Kikuchi, K., Ohtsu, T., Yoshiwara, M., Nakamura, Y., Miyagi, Y., Zheng, H., Takano, Y."Pulmonary tumors associated with the JC virus T-antigen in a transgenic mouse model". Oncology Reports 30.6 (2013): 2603-2608.
Chicago
Noguchi, A., Kikuchi, K., Ohtsu, T., Yoshiwara, M., Nakamura, Y., Miyagi, Y., Zheng, H., Takano, Y."Pulmonary tumors associated with the JC virus T-antigen in a transgenic mouse model". Oncology Reports 30, no. 6 (2013): 2603-2608. https://doi.org/10.3892/or.2013.2782