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Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6

  • Authors:
    • Kaiqing Huang
    • Wenxiang Li
    • Yanhong Chen
    • Jinyan Zhu
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510150, P.R. China, Maternal and Child Health Care Hospital of Nanning, Nanning, Guangxi 530011, P.R. China
  • Pages: 7068-7073
    |
    Published online on: September 27, 2018
       https://doi.org/10.3892/ol.2018.9516
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Abstract

Effects of different levels of PM2.5 on invasion and proliferation of HeLa cells and the expression levels of inflammatory cytokines IL‑1 and IL‑6 under 10 µg/ml PM2.5 were investigated. Different groups of HeLa cells were treated with PM2.5 at 0, 10, 25, 50, 100 and 200 µg/ml for 36 h, respectively. Cell proliferation was detected by MTT assay. Transwell assay was performed to detect the invasion of HeLa cells. Enzyme‑linked immunosorbent assay (ELISA), RT‑qPCR and western blotting were used to detect the expression levels of inflammatory cytokines IL‑1 and IL‑6 in PM2.5‑stimulated HeLa cells. It was observed that proliferation of cells treated with PM2.5 at a concentration of 10 µg/ml was basically the same as that of untreated cells, while high concentration of PM2.5 inhibited the proliferation of HeLa cells in a dose‑dependent manner in the range from 25 to 200 µg/ml (p<0.05). Transwell invasion assay showed that the number of migrating HeLa cells stimulated by 10 µg/ml PM2.5 was significantly greater than that of NC group cells (p<0.05). Western blotting showed that IL‑1 and IL‑6 protein expression levels in HeLa cells after stimulation with 10 µg/ml PM2.5 were significantly higher than that in NC group (p<0.05). RT‑qPCR results also showed that IL‑1 mRNA and IL‑6 mRNA expression levels in HeLa cells stimulated by 10 µg/ml PM2.5 were significantly higher than those in the NC group (p<0.05). Additionally, ELISA results showed that IL‑1 and IL‑6 levels in HeLa cells stimulated by 10 µg/ml PM2.5 were significantly higher than those in NC group (p<0.05). We conclude that high concentrations of PM2.5 can inhibit the proliferation of HeLa cells to a certain extent. Stimulation with 10 µg/ml PM2.5 increases the inv­asion ability of HeLa cells and promotes the expression of inflammatory cytokines IL‑1 and IL‑6.
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Copy and paste a formatted citation
Spandidos Publications style
Huang K, Li W, Chen Y and Zhu J: Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6. Oncol Lett 16: 7068-7073, 2018.
APA
Huang, K., Li, W., Chen, Y., & Zhu, J. (2018). Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6. Oncology Letters, 16, 7068-7073. https://doi.org/10.3892/ol.2018.9516
MLA
Huang, K., Li, W., Chen, Y., Zhu, J."Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6". Oncology Letters 16.6 (2018): 7068-7073.
Chicago
Huang, K., Li, W., Chen, Y., Zhu, J."Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6". Oncology Letters 16, no. 6 (2018): 7068-7073. https://doi.org/10.3892/ol.2018.9516
Copy and paste a formatted citation
x
Spandidos Publications style
Huang K, Li W, Chen Y and Zhu J: Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6. Oncol Lett 16: 7068-7073, 2018.
APA
Huang, K., Li, W., Chen, Y., & Zhu, J. (2018). Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6. Oncology Letters, 16, 7068-7073. https://doi.org/10.3892/ol.2018.9516
MLA
Huang, K., Li, W., Chen, Y., Zhu, J."Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6". Oncology Letters 16.6 (2018): 7068-7073.
Chicago
Huang, K., Li, W., Chen, Y., Zhu, J."Effect of PM2.5 on invasion and proliferation of HeLa cells and the expression of inflammatory cytokines IL‑1 and IL‑6". Oncology Letters 16, no. 6 (2018): 7068-7073. https://doi.org/10.3892/ol.2018.9516
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