Journal: The Journal of Clinical Investigation
Article Title: The Alzheimer’s disease–linked protease BACE2 cleaves VEGFR3 and modulates its signaling
doi: 10.1172/JCI170550
Figure Lengend Snippet: ( A ) Schematic for VEGFR3 signaling. Upon ligand binding, VEGFR3 dimerizes, resulting in intracellular autophosphorylation and activation of the downstream genes FOXC2 and DLL4 . V, verubecestat, inhibitor of BACE2. Gene expression levels of ( B ) DLL4 and FOXC2 and ( C ) VEGFR3 after the application of DMSO, 100 nM verubecestat (V), and VEGF-C. ( D and E ) Gene expression levels of DLL4 , FOXC2 , VEGFR3 , BACE1 , and BACE2 after BACE knockdown (siB1/siB2) without or with (+V) subsequent verubecestat application. All dot plots were normalized on the control mean and depict mean and SD alongside the P values calculated by unpaired t tests against the DMSO control ( B and C ) or by 1-way ANOVA ( D and E ), in both cases followed by Bonferroni’s multiple-comparison test. * P < 0.05; ** P < 0.01; **** P < 0.0001. P values are only indicated where significance was observed. In B , 1 data point was excluded from the DLL4 expression/VEGF-C156S data set, since it was identified as an outlier via the ROUT method. Data are derived from n = 6 ( B and C ) or n = 4 ( D and E ) biological replicates.
Article Snippet: The next morning, medium was replaced with fresh EBM supplemented with DMSO, 100 nM verubecestat, or 1.5 μg/mL VEGF-C156S (752-VC, R&D Systems) and incubated for 100 minutes.
Techniques: Ligand Binding Assay, Activation Assay, Expressing, Knockdown, Control, Comparison, Derivative Assay