Figure 3

Deletion of the genes encoding membrane-anchored PrPC or LRP1 in BMDMs decreases the concentration of EI-tPA required for activation of ERK1/2. (A) BMDMs isolated from WT mice were treated for 1 h with increasing concentrations of EI-tPA (2–120 nM). Cell extracts were subjected to immunoblot analysis to detect phospho-ERK1/2 and total ERK1/2. (B) PrPC-deficient BMDMs isolated from Prnp−/− mice were treated for 1 h with increasing concentrations of EI-tPA (2–120 nM). Cell extracts were subjected to immunoblot analysis to detect phospho-ERK1/2 and total ERK1/2. (C) LRP1-deficient BMDMs from mLrp1−/− mice were treated for 1 h with increasing concentrations of EI-tPA (2–120 nM). Cell extracts were subjected to immunoblot analysis to detect phospho-ERK1/2 and total ERK1/2.