Proinflammatory Effects of Diesel Exhaust Nanoparticles on Scleroderma Skin Cells

Figure 3

Real time PCR analysis of the expression of IL-1α (a), TNF-α (b), IL-6 (c), and IL-8 (d) in primary cultures of keratinocytes from sclerodermic and healthy subjects stimulated with Euro 4 and Euro 5 nanoparticles (30 and 60 μg/mL) for 6 h. (^∗𝑃<0.01 and ^∗∗𝑃<0.001 versus control; °𝑃<0.01 versus healthy subjects).

(a)

(b)

(c)

(d)