Antiphotoaging Effects of 3,5-Dicaffeoyl-epi-quinic Acid via Inhibition of Matrix Metalloproteinases in UVB-Irradiated Human Keratinocytes

<div>Effect of DCEQA on the activation of ERK MAPK in UVB-irradiated HaCaT keratinocytes after 24 h from treatment, analyzed by FACS flow cytometry. Plots give the percentage of cells with phosphorylated ERK in the total population. Blank: untreated nonirradiated cells; control: untreated UVB-irradiated cells. Retinoic acid was used as a positive control. (a) Blank, (b) control, (c) retinoic acid (1 <i>μ</i>m), (d) DCEQA (10 <i>μ</i>m).</div>

Evidence-Based Complementary and Alternative Medicine

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Figure 6

Figure 6: Antiphotoaging Effects of 3,5-Dicaffeoyl-epi-quinic Acid via Inhibition of Matrix Metalloproteinases in UVB-Irradiated Human Keratinocytes 