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Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer

  • Authors:
    • Shuhei Kushiyama
    • Masakazu Yashiro
    • Yurie Yamamoto
    • Tomohiro Sera
    • Atsushi Sugimoto
    • Sadaaki Nishimura
    • Shingo Togano
    • Kenji Kuroda
    • Mami Yoshii
    • Tatsuro Tamura
    • Takahiro Toyokawa
    • Hiroaki Tanaka
    • Kazuya Muguruma
    • Hiroshi Nakada
    • Masaichi Ohira
  • View Affiliations / Copyright

    Affiliations: Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka 545‑8585, Japan, Department of Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, Osaka 545‑8585, Japan, Department of Molecular Biosciences, Faculty of Life Science, Kyoto Sangyo University, Kyoto 603‑8555, Japan
    Copyright: © Kushiyama et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 105
    |
    Published online on: March 19, 2021
       https://doi.org/10.3892/mco.2021.2267
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Abstract

Trophoblast cell‑surface antigen 2 (TROP2) is a transmembrane glycoprotein expressed in epithelial cells. Increased TROP2 expression has been reported to be associated with malignant progression in most carcinomas; however, TROP2 has a tumor‑suppressive function in certain types of cancer. Since the function of TROP2 is controversial, the present study subsequently aimed to clarify the clinicopathologic significance of TROP2 and pTROP2 expression in human gastric cancer (GC). The cases of 704 patients with GC who underwent gastrectomy were retrospectively analyzed. The expression levels of TROP2 and pTROP2 in each tumor were evaluated by immunohistochemistry. The association between the clinicopathologic features of patients with GC and the levels of TROP2 and pTROP2 in their tumors was analyzed. Increased TROP2 and pTROP2 expression was identified in 330 (46.9%) and 306 (43.5%) of the 704 patients with GC, respectively. Increased TROP2 expression was associated with the histological intestinal type, high tumor invasion depth (T3/T4), lymph node metastasis, lymphatic invasion and venous invasion. By contrast, increased pTROP2 expression was associated with intestinal type, low tumor invasion depth (T1/2), no lymph node metastasis and no lymphatic invasion. Increased TROP2 expression was associated with poorer overall survival (OS) (P<0.01; log rank test), whereas increased pTROP2 expression was significantly associated with improved OS (P<0.01; log rank test). In conclusion, increased expression levels of TROP2, but not pTROP2, may be associated with the metastatic ability of GC, resulting in poor prognosis of patients with GC.
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Copy and paste a formatted citation
Spandidos Publications style
Kushiyama S, Yashiro M, Yamamoto Y, Sera T, Sugimoto A, Nishimura S, Togano S, Kuroda K, Yoshii M, Tamura T, Tamura T, et al: Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer. Mol Clin Oncol 14: 105, 2021.
APA
Kushiyama, S., Yashiro, M., Yamamoto, Y., Sera, T., Sugimoto, A., Nishimura, S. ... Ohira, M. (2021). Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer. Molecular and Clinical Oncology, 14, 105. https://doi.org/10.3892/mco.2021.2267
MLA
Kushiyama, S., Yashiro, M., Yamamoto, Y., Sera, T., Sugimoto, A., Nishimura, S., Togano, S., Kuroda, K., Yoshii, M., Tamura, T., Toyokawa, T., Tanaka, H., Muguruma, K., Nakada, H., Ohira, M."Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer". Molecular and Clinical Oncology 14.5 (2021): 105.
Chicago
Kushiyama, S., Yashiro, M., Yamamoto, Y., Sera, T., Sugimoto, A., Nishimura, S., Togano, S., Kuroda, K., Yoshii, M., Tamura, T., Toyokawa, T., Tanaka, H., Muguruma, K., Nakada, H., Ohira, M."Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer". Molecular and Clinical Oncology 14, no. 5 (2021): 105. https://doi.org/10.3892/mco.2021.2267
Copy and paste a formatted citation
x
Spandidos Publications style
Kushiyama S, Yashiro M, Yamamoto Y, Sera T, Sugimoto A, Nishimura S, Togano S, Kuroda K, Yoshii M, Tamura T, Tamura T, et al: Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer. Mol Clin Oncol 14: 105, 2021.
APA
Kushiyama, S., Yashiro, M., Yamamoto, Y., Sera, T., Sugimoto, A., Nishimura, S. ... Ohira, M. (2021). Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer. Molecular and Clinical Oncology, 14, 105. https://doi.org/10.3892/mco.2021.2267
MLA
Kushiyama, S., Yashiro, M., Yamamoto, Y., Sera, T., Sugimoto, A., Nishimura, S., Togano, S., Kuroda, K., Yoshii, M., Tamura, T., Toyokawa, T., Tanaka, H., Muguruma, K., Nakada, H., Ohira, M."Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer". Molecular and Clinical Oncology 14.5 (2021): 105.
Chicago
Kushiyama, S., Yashiro, M., Yamamoto, Y., Sera, T., Sugimoto, A., Nishimura, S., Togano, S., Kuroda, K., Yoshii, M., Tamura, T., Toyokawa, T., Tanaka, H., Muguruma, K., Nakada, H., Ohira, M."Clinicopathologic significance of TROP2 and phospho‑TROP2 in gastric cancer". Molecular and Clinical Oncology 14, no. 5 (2021): 105. https://doi.org/10.3892/mco.2021.2267
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