Extended Data Fig. 2. Expression of Bmx gene and confirmation of Tie1 and Tie2 gene deletions in the aorta.
a. Representative images of β-gal staining in the thoracic aorta, b. aortic arch and c. aortic root from WT (Bmx+/+) mice and in mice expressing the LacZ gene targeted into the Bmx locus. Scale bar, 1 mm (A-B) and 50 μm (C). d. Fold differences of Tie1 and Tie2 transcripts in the Tie1iΔAEC (n = 3 independent mice per group, Tie1: P = 0.0025), Tie2iΔAEC (n = 4 independent mice per group, Tie2: P = 0.0003), and Tie1;Tie2iΔAEC mice (n = 5 independent Tie1;Tie2WT mice and n = 4 independent Tie1;Tie2iΔAEC mice, Tie1: P = 0.0003,Tie2: P = 0.0015) in comparison with their littermate controls. Statistical significance was determined using Student’s t-test (two tailed, unpaired). e. Immunofluorescence of Tie2 and PECAM1 in the aortic root, aortic arch and thoracic aorta of the Tie2iΔAEC and Tie2WT mice (n = 3 independent mice per group). Scale bar, 50 μm. f. Pcsk9-D377Y concentration in serum samples and body weight measurements at the indicated time points in the Tie2iΔAEC and Tie2WT mice (n = 6 independent mice per group). g. Quantification of cholesterol (CHOL) and triglyceride (TG) concentrations in serum samples from the Tie2-deleted mice (n = 6 independent mice per group) 20 weeks after Pcsk9 and Western diet. Values show mean ± s.d. Statistical significance was determined using Student’s t-test (two tailed, unpaired).