Journal: Hypertension (Dallas, Tex. : 1979)
Article Title: BMP9 Modulates IL-33 Signaling to Mitigate EndMT in Pulmonary Arterial Hypertension
doi: 10.1161/HYPERTENSIONAHA.125.24916
Figure Lengend Snippet: BMP (bone morphogenetic protein) 9 protects from IL (interleukin)-33–induced endothelial-to-mesenchymal transition (EndMT) and induces sST2 (soluble supression of tumorigenicity 2) expression in pulmonary arterial endothelial cells (PAECs) from patients with pulmonary arterial hypertension (PAH) in vitro. A , Representative immunofluorescent staining of PAH PAEC for CD31 (endothelial marker), SM22α (smooth muscle protein 22-alpha; mesenchymal marker), and 4′,6-diamidino-2-phenylindole (DAPI). Cells were treated with BMP9 (1 ng/mL), IL-33 (100 ng/mL), both, or left untreated (control [CTR]) for 3 days. Bar graphs show quantification of CD31 and SM22α intensity (technical replicates [t.n.]=3). B , sST2 , ST2L , CTGF , and Pai-1 gene expressions in PAH PAECs s after 16-hour stimulation with TGF (transforming growth factor)-β (1 ng/mL), activin A (50 ng/mL), or untreated (CTR; t.n.=3). C , sST2 , ST2L , ID1 , and ID3 gene expressions in PAH PAECs after 3-hour stimulation with BMP4 (50 ng/mL), BMP6 (50 ng/mL), BMP9 (1 ng/mL), BMP10 (1 ng/mL), or untreated (CTR; t.n.=3). Statistical analysis: 1-way ANOVA with the Tukey post hoc test; P <0.05, * P <0.01, ** P <0.001, and *** P <0.0001. Data are shown as mean±SD.
Article Snippet: Human recombinant BMP4 (314-BP-010/CF), BMP6 (507-BP-020/CF), BMP9 (3209-BP-010/CF), BMP10 (2926-BP-025/CF), activin A (338-AC-010/CF), TGF-b1 (240-B-010/CF), and recombinant human soluble ST2/IL-33R Fc (523-ST-100) were obtained from R&D Systems.
Techniques: Expressing, In Vitro, Staining, Marker, Control