Journal: EMBO Reports
Article Title: Novel role of bone morphogenetic protein 9 in innate host responses to HCMV infection
doi: 10.1038/s44319-024-00072-2
Figure Lengend Snippet: ( A ) Presence of type I (ALK1, ALK2, ALK3) and type II (BMPR2) receptors in HFF-1 and 293T was verified by immunoblotting with the respective antibodies. Detection of GAPDH protein served as loading control. ( B ) Relative transcript levels of type I (ALK1, ALK2, ALK3, ALK6) and type II (BMPR2, ACVR2A, ACVR2B) BMP receptors in 293T were determined by RT-qPCR. ( C ) 293T were co-transfected with expression plasmids for the BRE-Luciferase reporter and a Renilla luciferase normalization control (EF1α-Renilla). 24 h post transfection, 293T were either stimulated with BMP9 (3 nM), or BMP9 (3 nM) incubated for 15 min at RT with an α-BMP9 antibody (1 µg/ml or 5 µg/ml) for 16 h, followed by a dual-luciferase assay readout. ( D ) 293T were co-transfected as in ( B ). 24 h post transfection, 293 T were either stimulated with BMP4 (18 nM), BMP6 (18 nM), BMP9 (3 nM), BMP15 (18 nM), or Activin B (4 nM), or with the ligands incubated for 15 min at RT with an α-BMP9 antibody (1 µg/ml) for 16 h, followed by a dual-luciferase assay readout. ( E ) HFF-1 were either mock, DMSO, Ruxolitinib (10 µM) or DMH1 (10 µM) treated for 2 h, followed by stimulation with IFNβ (5 ng/ml) or BMP4 (18 nM) for 2 h. Cells were lysed and lysates were subjected to immunoblot analysis with p-STAT1, STAT1, p-SMAD1/5/9, SMAD1, p-p38, p38, p-p44/42, p44/42, and Calnexin-specific antibodies. Data information: ( A – E ) Experiments were performed two independent times, one representative is shown. Luciferase fold induction was calculated by dividing Renilla-normalized values from stimulated samples by the corresponding values from unstimulated samples.
Article Snippet: Recombinant human BMP4 (#314-BP-010), human BMP6 (#507-BP-020), human BMP9 (#3209-BP-010), human BMP15 (#5096-BM-005), human Activin B (#659-AB-005), and the human/mouse anti-BMP9 antibody (#AF3209) were purchased from R&D Systems.
Techniques: Western Blot, Control, Quantitative RT-PCR, Transfection, Expressing, Luciferase, Incubation