Journal: Scientific Reports
Article Title: VE-cadherin shedding in vitro and in patients with aortic aneurysm and dissection
doi: 10.1038/s41598-024-77940-3
Figure Lengend Snippet: TNF-α and ADAM10/17 trigger shedding of VE-cadherin (VEC) in human, aortic endothelial cells (HAOEC). ( a ) soluble VEC (sVEC) levels detected by ELISA in culture supernatants of HAOEC stimulated with various concentrations (for 4 h). ( b ) Relative sVEC levels in the culture supernatant of HAOEC treated with TNF-α (100 ng/mL) for the indicated times. Absorbance was normalized to the absorbance measured in untreated (ctrl) cells (dashed line) c , d ) sVEC levels read out by ELISA ( c ) or Western Blotting ( d ) against VEC in supernatants of HAOEC stimulated with TNF-α (100 ng/mL, 2 h) in the presence or absence of pharmacological inhibitors for ADAM10 and ADAM17 (each 10 µM). d (lower panel) densitometric quantification of 90 kDa fragment of VEC. The uncropped blot is shown in the Supplementary Fig. . e , f Diffusion of Alexa488-conjugated Dextran (10 kDa) through a confluent monolayer of HAOEC treated for 4 h with TNF-a ( e ) or ADAM10 inhibitor ( f ). A minimum of N = 3 independent experiments were conducted. P values were determined using one-way analysis of variance ( ANOVA ) ( a-d ) and unpaired t-Test ( Welch’s t-test ) for e , f .
Article Snippet: Viability of HAOEC upon treatment with various TNF-α concentrations ranging from 100 to 1000 ng/ml was performed by an commercially available “MTT” assay (Promega, G4000, including Solubilization Solution/Stop Mix G401A and Dye Solution G402A) as described by Guo et al. .
Techniques: Enzyme-linked Immunosorbent Assay, Western Blot, Diffusion-based Assay