Activation of phospholipase C was determined by quantification of the [3H]-inositol phosphates (InsP) [21 (link)]. NFκB-luciferase reporter gene assays were performed in HEK293T cells [52 (link)] and luminescence (1 s per well) was measured with a Mithras LB940 multilabel plate reader (Berthold Technologies). VEGF levels were measured in conditioned medium by ELISA using the Quantikine human-VEGF ELISA kit (R&D systems) [25 (link)]. In all VEGF ELISA assays, the lower detection limit was 15 pg/ml.
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