Research Article

Polycyclic Aromatic Hydrocarbons from Fine Particulate Matter Induce Oxidative Stress and the Inflammatory Response in Human Vocal Fold Fibroblast Cells

Figure 4

PM upregulated IL-6 and IL-8 expression in hVFFs. (a, b) After treatment with PM (25 μg/mL) for 24 h, mRNA expression of IL-6 and IL-8 was determined by qRT-PCR, respectively. (c, d) Secretion of IL-6 and IL-8 determined by ELISA. All experiments were performed in triplicate. Values are the . compared to the control.
(a)
(b)
(c)
(d)