Open Access

Serum bradykinin levels as a diagnostic marker in cervical cancer with a potential mechanism to promote VEGF expression via BDKRB2

  • Authors:
    • Ying Zhou
    • Wei Wang
    • Rui Wei
    • Guiying Jiang
    • Fei Li
    • Xi Chen
    • Xueqian Wang
    • Sixiang Long
    • Ding Ma
    • Ling Xi
  • View Affiliations

  • Published online on: May 2, 2019     https://doi.org/10.3892/ijo.2019.4792
  • Pages: 131-141
  • Copyright: © Zhou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Bradykinin (BK) is one of the kinin peptides and preferentially binds to bradykinin B2 receptor (BDKRB2). A recent study indicated that BK played an important role in the occurrence and progression of cancer. In this study, we evaluated the serum BK levels in 130 cervical cancer (CC) cases (including 65 cases with pre‑ and post‑surgery paired samples, another 65 cases with only pre‑surgery samples), 35 cervical intraepithelial neoplasia (CIN) cases (pre‑ and post‑surgery paired) and 35 control cases. We found that BK was overexpressed in patients with CC compared to patients with CIN and the control group. When combined with squamous cell carcinoma‑related antigen (SCCA), the diagnostic efficacy of BK was prominently enhanced. Moreover, we detected the expression level of the BK receptor BDKRB2 in CC, CIN and normal cervical tissues and observed a higher expression in the CC and CIN tissues than in the normal cervix. We then explored the possible mechanisms of action of BK in promoting the progression of CC. When BK was added to the cell culture medium, human umbilical vein endothelial cell (HUVEC) angiogenesis increased and vascular endothelial growth factor (VEGF) expression in CC cell lines was also elevated. The BK antagonist, HOE140, exerted an opposite effect. The knockdown or the overexpression of BDKRB2 in CC cell lines further confirmed its oncogenic role in angiogenesis. Taken together, the findings of this study suggest that BK may be a diagnostic biomarker for CC and may notably improve the diagnostic efficacy when combined with SCCA. BK promotes the progression of CC by upregulating the expression of VEGF via BDKRB2 and subsequently facilitating angiogenesis.
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July-2019
Volume 55 Issue 1

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Copy and paste a formatted citation
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Spandidos Publications style
Zhou Y, Wang W, Wei R, Jiang G, Li F, Chen X, Wang X, Long S, Ma D, Xi L, Xi L, et al: Serum bradykinin levels as a diagnostic marker in cervical cancer with a potential mechanism to promote VEGF expression via BDKRB2. Int J Oncol 55: 131-141, 2019
APA
Zhou, Y., Wang, W., Wei, R., Jiang, G., Li, F., Chen, X. ... Xi, L. (2019). Serum bradykinin levels as a diagnostic marker in cervical cancer with a potential mechanism to promote VEGF expression via BDKRB2. International Journal of Oncology, 55, 131-141. https://doi.org/10.3892/ijo.2019.4792
MLA
Zhou, Y., Wang, W., Wei, R., Jiang, G., Li, F., Chen, X., Wang, X., Long, S., Ma, D., Xi, L."Serum bradykinin levels as a diagnostic marker in cervical cancer with a potential mechanism to promote VEGF expression via BDKRB2". International Journal of Oncology 55.1 (2019): 131-141.
Chicago
Zhou, Y., Wang, W., Wei, R., Jiang, G., Li, F., Chen, X., Wang, X., Long, S., Ma, D., Xi, L."Serum bradykinin levels as a diagnostic marker in cervical cancer with a potential mechanism to promote VEGF expression via BDKRB2". International Journal of Oncology 55, no. 1 (2019): 131-141. https://doi.org/10.3892/ijo.2019.4792