Open Access

Proteins S100A8 and S100A9 are potential biomarkers for renal cell carcinoma in the early stages: Results from a proteomic study integrated with bioinformatics analysis

  • Authors:
    • Limin Zhang
    • Haowen Jiang
    • Gang Xu
    • Hui Wen
    • Bin Gu
    • Jun Liu
    • Shanghua Mao
    • Rong Na
    • Yan Jing
    • Qiang Ding
    • Yuanfang Zhang
  • View Affiliations

  • Published online on: February 9, 2015     https://doi.org/10.3892/mmr.2015.3321
  • Pages: 4093-4100
  • Copyright: © Zhang 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

In order to investigate the two members of the EF‑hand Ca2+ binding protein S100 family, S100A8 and S100A9, in renal cell carcinoma (RCC), serum samples were collected from patients with RCC, transitional cell carcinoma in the kidney, benign renal masses and normal controls. The samples were analyzed by isobaric tags for relative and absolute quantification technology to identify the differential expression of S100A8 and S100A9 in the respective groups. Hierarchical clustering analysis was then conducted for the samples and the relevant selected gene. The cross‑platform analysis for the external validation was performed by means of The Cancer Genome Atlas database, containing the gene/microRNA expression pattern and clinical information of patients with RCC. Immunohistochemical staining was used to verify the expression of S100A8 and S100A9 in the four groups. As a result, serum and mRNA expression levels of S100A8 and S100A9 were found to be upregulated in patients with RCC compared with the other three groups, which was consistent with the result of the upregulated expression of mRNA levels in RCC tissue. The overexpression of S100A8 and S100A9 in cancer cells was also confirmed by immunohistochemistry. In addition, bioinformatics revealed that let‑7, a microRNA formerly identified as an inhibiting factor of RCC was downregulated in RCC, which contrasted with S100A8. It was also complementary to the sequence at the 3' untranslated region terminal of S100A8. Therefore, indicating that S100A8 and S100A9 may serve as biomarkers for the detection of RCC.
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June-2015
Volume 11 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Zhang L, Jiang H, Xu G, Wen H, Gu B, Liu J, Mao S, Na R, Jing Y, Ding Q, Ding Q, et al: Proteins S100A8 and S100A9 are potential biomarkers for renal cell carcinoma in the early stages: Results from a proteomic study integrated with bioinformatics analysis. Mol Med Rep 11: 4093-4100, 2015
APA
Zhang, L., Jiang, H., Xu, G., Wen, H., Gu, B., Liu, J. ... Zhang, Y. (2015). Proteins S100A8 and S100A9 are potential biomarkers for renal cell carcinoma in the early stages: Results from a proteomic study integrated with bioinformatics analysis. Molecular Medicine Reports, 11, 4093-4100. https://doi.org/10.3892/mmr.2015.3321
MLA
Zhang, L., Jiang, H., Xu, G., Wen, H., Gu, B., Liu, J., Mao, S., Na, R., Jing, Y., Ding, Q., Zhang, Y."Proteins S100A8 and S100A9 are potential biomarkers for renal cell carcinoma in the early stages: Results from a proteomic study integrated with bioinformatics analysis". Molecular Medicine Reports 11.6 (2015): 4093-4100.
Chicago
Zhang, L., Jiang, H., Xu, G., Wen, H., Gu, B., Liu, J., Mao, S., Na, R., Jing, Y., Ding, Q., Zhang, Y."Proteins S100A8 and S100A9 are potential biomarkers for renal cell carcinoma in the early stages: Results from a proteomic study integrated with bioinformatics analysis". Molecular Medicine Reports 11, no. 6 (2015): 4093-4100. https://doi.org/10.3892/mmr.2015.3321