Open Access

Overexpression of Musashi-1 protein is associated with progression and poor prognosis of gastric cancer

  • Authors:
    • Zhangxuan Shou
    • Xue Jin
    • Xujun He
    • Zhongsheng Zhao
    • Yuan Chen
    • Meihua Ye
    • Jiong Yao
  • View Affiliations

  • Published online on: March 21, 2017     https://doi.org/10.3892/ol.2017.5879
  • Pages: 3556-3566
  • Copyright: © Shou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Musashi-1, an evolutionally conserved RNA-binding protein, has been implicated in the promotion of pathological stem cell proliferation, including tumorigenesis. The objective of the present study was to evaluate the expression of Musashi-1 protein and its implications in the progression and prognosis of gastric cancer. The expression level of Musashi-1 protein in gastric cancer was determined by western blotting and immunohistochemistry, and compared with the clinicopathological parameters. The present study revealed that the expression level of Musashi‑1 protein in gastric cancer was significantly upregulated and correlated with the tumor size, tumor‑node‑metastasis (TNM) stage, Lauren classification, depth of invasion, vessel invasion, lymph node metastasis and distant metastasis. The mean survival time for patients with low expression levels of Musashi‑1 was significantly longer compared with patients with high expression levels of Musashi‑1. For each TNM stage, the mean survival time for patients with a low Musashi‑1 expression levels was also significantly longer compared with patients with a high Musashi‑1 expression level. Notably, TNM stage II patients with a low Musashi‑1 expression level demonstrated a longer mean survival time compared with TNM stage I patients with high Musashi‑1 expression level (56.8 vs. 42.3 months; P=0.001), and TNM stage III patients with low Musashi‑1 expression level exhibited a longer mean survival time compared with TNM stage II patients with a high Musashi-1 expression level (44.0 vs. 33.8 months; P=0.034). Multivariate Cox's regression test demonstrated that Musashi-1 protein expression level was an independent prognostic indicator for the survival rate of the patients with gastric cancer. The results of the present study highlighted an important role for Musashi‑1 protein in the progression of gastric cancer. The detection of the Musashi‑1 protein expression level alone or in combination with TNM staging may aid the prediction of the prognosis of patients with gastric cancer.
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May-2017
Volume 13 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Shou Z, Jin X, He X, Zhao Z, Chen Y, Ye M and Yao J: Overexpression of Musashi-1 protein is associated with progression and poor prognosis of gastric cancer. Oncol Lett 13: 3556-3566, 2017
APA
Shou, Z., Jin, X., He, X., Zhao, Z., Chen, Y., Ye, M., & Yao, J. (2017). Overexpression of Musashi-1 protein is associated with progression and poor prognosis of gastric cancer. Oncology Letters, 13, 3556-3566. https://doi.org/10.3892/ol.2017.5879
MLA
Shou, Z., Jin, X., He, X., Zhao, Z., Chen, Y., Ye, M., Yao, J."Overexpression of Musashi-1 protein is associated with progression and poor prognosis of gastric cancer". Oncology Letters 13.5 (2017): 3556-3566.
Chicago
Shou, Z., Jin, X., He, X., Zhao, Z., Chen, Y., Ye, M., Yao, J."Overexpression of Musashi-1 protein is associated with progression and poor prognosis of gastric cancer". Oncology Letters 13, no. 5 (2017): 3556-3566. https://doi.org/10.3892/ol.2017.5879