Open Access

Effects of GPR81 silencing combined with cisplatin stimulation on biological function in hypopharyngeal squamous cell carcinoma

  • Authors:
    • Qiaojing Jia
    • Ou Xu
    • Jianxing Wang
    • Jinhui Dong
    • Xiumin Ren
    • Xiaofang Jia
    • Chunguang Shan
  • View Affiliations

  • Published online on: June 18, 2020     https://doi.org/10.3892/mmr.2020.11255
  • Pages: 1727-1736
  • Copyright: © Jia et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Hypopharyngeal squamous cell carcinoma (HSCC) is a malignant tumor found in the head and neck region. Lactate receptor 1, also known as G protein‑coupled receptor81 (GPR81), has been reported to play a vital role in cancer growth and metabolism. However, the function of GPR81 in HSCC remains largely unknown. The present study investigated the effect of GPR81 on cell survival and GPR81‑mediated energy metabolism under cisplatin treatment in HSCC. GPR81 knockdown reduced the proliferation and invasion of the human HSCC cell line FaDu. Furthermore, GPR81 silencing combined with cisplatin treatment increased the expression of translocase of outer mitochondrial membrane 20 at the mRNA and protein levels (P<0.05). mRNA and protein expression of phosphofructokinase 1 in mRNA appeared to be downregulated in GPR81 knockdown FaDu cells treated with cisplatin, although this was not statistically significant. GPR81 silencing and cisplatin challenge showed no significant upregulation compared with the control, but significant downregulation in mRNA and protein levels compared with the shRNA‑scramble group. Apoptosis was measured by flow cytometry with annexin V and 7‑aminoactinomycin D. GPR81 silencing and cisplatin led to an increased apoptotic rate. Moreover, absence of GPR81 combined with cisplatin exposure increased caspase‑3 expression and decreased Bcl‑2 levels. The results of the present study suggested that GPR81 and cisplatin sensitivity played an important role in HSCC growth and metabolism.
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September-2020
Volume 22 Issue 3

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

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Spandidos Publications style
Jia Q, Xu O, Wang J, Dong J, Ren X, Jia X and Shan C: Effects of GPR81 silencing combined with cisplatin stimulation on biological function in hypopharyngeal squamous cell carcinoma. Mol Med Rep 22: 1727-1736, 2020
APA
Jia, Q., Xu, O., Wang, J., Dong, J., Ren, X., Jia, X., & Shan, C. (2020). Effects of GPR81 silencing combined with cisplatin stimulation on biological function in hypopharyngeal squamous cell carcinoma. Molecular Medicine Reports, 22, 1727-1736. https://doi.org/10.3892/mmr.2020.11255
MLA
Jia, Q., Xu, O., Wang, J., Dong, J., Ren, X., Jia, X., Shan, C."Effects of GPR81 silencing combined with cisplatin stimulation on biological function in hypopharyngeal squamous cell carcinoma". Molecular Medicine Reports 22.3 (2020): 1727-1736.
Chicago
Jia, Q., Xu, O., Wang, J., Dong, J., Ren, X., Jia, X., Shan, C."Effects of GPR81 silencing combined with cisplatin stimulation on biological function in hypopharyngeal squamous cell carcinoma". Molecular Medicine Reports 22, no. 3 (2020): 1727-1736. https://doi.org/10.3892/mmr.2020.11255