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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Nutr Cancer. 2012 Mar 27;64(4):580–587. doi: 10.1080/01635581.2012.661514

Figure 4.

Figure 4

Impact on COMT protein expression by different treatments. PC-3 cells (A) and LNCaP cells (B) were treated with the indicated concentrations of EGCG and quercetin alone or in combination for 24h and 48h. COMT protein expression was evaluated by Western blot. The superscript letters represent significant difference between groups (P<0.05): a compared to vehicle control (NT); b compared to 40 µM of EGCG treatment; c compared to 10 µM of quercetin treatment. Error bars represent standard deviation.