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. 2012 Nov 14;7(11):e49232. doi: 10.1371/journal.pone.0049232

Figure 7. Suppression of PMA-induced COX-2 expression by PKCδ siRNA.

Figure 7

(A) Analysis of PKCδ protein levels in SF- and SR-HsFb with or without PMA treatment. PKCδ protein level was not different between SF- and SR-cells. (B) SF-HsFb were transfected with PKCδ siRNA or a control scRNA. PKCδ expression in the transfected cells was analyzed by Western blotting. (C) SF-HsFb (upper panel) and SR-HsFb (lower panel) were transfected with PKCδ siRNA or scRNA. PMA-induced COX-2 expression was analyzed by Western blotting. The blots were quantified by densitometry (mean ± SEM, n = 3). (D) PKCδ activity in SF- vs. SR-HsFb treated with PMA was determined by immunoprecipitation (IP) to isolate PKCδ proteins and analyzed the PKC catalytic activity of the IP-isolated PKCδ.