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. Author manuscript; available in PMC: 2012 Dec 12.
Published in final edited form as: Carcinogenesis. 2007 Nov 4;29(1):219–225. doi: 10.1093/carcin/bgm242

Fig 2.

Fig 2

Effects of UVB on COX-2 and cytokine mRNA expression. Undifferentiated and differentiated keratinocytes were exposed to UVB (2.5–25 mJ/cm2) or control. After 24 h, RNAwas extracted from the cells and analyzed for gene expression by real-time PCR (n= 3−6, ±SE). Data are presented as fold increase in gene expression relative to unexposed undifferentiated cells. Differences were considered statistically significant at P < 0.05: aundifferentiated fold increase as compared with control; bdifferentiated fold increase versus control; cundifferentiated versus differentiated.