Open Access

High interleukin‑8 and/or extracellular signal‑regulated kinase 2 expression predicts poor prognosis in patients with hepatocellular carcinoma

  • Authors:
    • Youyuan Deng
    • Zhijie Ning
    • Zhiya Hu
    • Qianle Yu
    • Bin He
    • Guohuang Hu
  • View Affiliations

  • Published online on: September 23, 2019     https://doi.org/10.3892/ol.2019.10907
  • Pages: 5215-5224
  • Copyright: © Deng et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Interleukin (IL)‑8 and extracellular signal‑regulated kinase (ERK) 2 play key roles in tumor progression, but the relationship between IL‑8 and/or ERK2 expression in hepatocellular carcinoma (HCC) tissues and postoperative recurrence or survival is unclear. The expression levels of IL‑8 and ERK2 in both HCC tissues and non‑tumor liver tissues were analyzed using the Oncomine™ database and immunohistochemistry assay. Reverse transcription‑quantitative PCR was then used to evaluate the expression levels of IL‑8 and ERK2 in the tumor tissues of 67 patients with HCC undergoing radical hepatectomy. Pearson's correlation, Kaplan‑Meier, Cox univariate and multivariate survival analyses were utilized to determine the correlation between IL‑8 and ERK2 expression in HCC tissues, and their potential prognostic significance. As indicated by the data from the Oncomine™ database, and the patient samples, IL‑8 and ERK2 were expressed at significantly higher levels in HCC tissues than in non‑tumor liver tissues (P<0.05). The rates of high IL‑8 and ERK2 expression in HCC tissues were 43.28 (29/67) and 34.33% (23/67), respectively, and the IL‑8 and ERK2 expression levels were positively correlated (r=0.764; P<0.001). Both ERK2 expression and IL‑8/ERK2 co‑expression were significantly associated with tumor size and differentiation (P<0.05). Additionally, high expression levels of IL‑8, ERK2 and IL‑8/ERK2 co‑expression were all significantly associated with poor overall survival (OS; P<0.05) and disease‑free survival (DFS; P<0.05). Multivariate Cox regression analysis also showed that high expression levels of IL‑8, ERK2, and IL‑8 and ERK2 were independent prognostic factors for OS and DFS (P<0.05). The results of the present study indicate a significant increase in the risk of recurrence and mortality in HCC patients with high expression levels of IL‑8 and/or ERK2, compared with patients with low expression. Therefore, IL‑8 and ERK2 may be predictors of postoperative prognosis in patients with HCC.
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November-2019
Volume 18 Issue 5

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

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Spandidos Publications style
Deng Y, Ning Z, Hu Z, Yu Q, He B and Hu G: High interleukin‑8 and/or extracellular signal‑regulated kinase 2 expression predicts poor prognosis in patients with hepatocellular carcinoma. Oncol Lett 18: 5215-5224, 2019
APA
Deng, Y., Ning, Z., Hu, Z., Yu, Q., He, B., & Hu, G. (2019). High interleukin‑8 and/or extracellular signal‑regulated kinase 2 expression predicts poor prognosis in patients with hepatocellular carcinoma. Oncology Letters, 18, 5215-5224. https://doi.org/10.3892/ol.2019.10907
MLA
Deng, Y., Ning, Z., Hu, Z., Yu, Q., He, B., Hu, G."High interleukin‑8 and/or extracellular signal‑regulated kinase 2 expression predicts poor prognosis in patients with hepatocellular carcinoma". Oncology Letters 18.5 (2019): 5215-5224.
Chicago
Deng, Y., Ning, Z., Hu, Z., Yu, Q., He, B., Hu, G."High interleukin‑8 and/or extracellular signal‑regulated kinase 2 expression predicts poor prognosis in patients with hepatocellular carcinoma". Oncology Letters 18, no. 5 (2019): 5215-5224. https://doi.org/10.3892/ol.2019.10907