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. 2020 Mar 9;19(5):3227–3238. doi: 10.3892/etm.2020.8590

Figure 1.

Figure 1

Effect of PM2.5 exposure on cell viability and the secretions of SCF and bFGF in human keratinocyte HaCaT cells. Cells were exposed to (0-200 µg/ml) PM2.5 for 24 h, cell viability was measured by Cell Counting Kit-8 assay, and the secretions of SCF and bFGF were evaluated by ELISA. (A) PM2.5 exposure decreased cell viability in HaCaT cells in a dose-dependent manner. (B) PM2.5 exposure inhibited the secretion of SCF in HaCaT cells in a dose-dependent manner. (C) PM2.5 exposure inhibited the secretion of bFGF in HaCaT cells in a dose-dependent manner. Data are presented as the mean ± SD. n=6. *P<0.05, **P<0.01 vs. 0 µg/ml PM2.5. PM2.5, particulate matter 2.5; SCF, stem cell factor; bFGF, basic fibroblast growth factor.