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3 protocols using phospho smad1 ser463 465 smad5 ser463 465 smad9 ser465 467

1

Western Blot Analysis of Smad and NF-κB Signaling

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Cells were lysed with RIPA Lysis and Extraction Buffer (Thermo Scientific cat.# PI89900) buffer with protease/phosphatase inhibitor cocktail. The lysate was centrifuged at 12,000×g at 4°C for 15 min, boiled with Laemmli buffer for 7 min at 95°C, and transferred to PVDF membranes (Millipore). After blocking, membranes were incubated with primary antibody at 4°C overnight followed by incubation with corresponding secondary HRP-linked antibody. The following antibodies were used for western blotting: Smad1 (D59D7) XP Rabbit mAb (Cell Signaling Technology cat.# 6944), Phospho-Smad1 (Ser463/465)/Smad5 (Ser463/465)/Smad9 (Ser465/467) (Cell Signaling Technology cat.# 13,820P), NF-κB p65 (D14E12) XP Rabbit mAb (Cell Signaling Technology cat.# 8242), Phospho-NF-κB p65 (Ser536) (93H1) Rabbit mAb (Cell Signaling Technology cat.# 3033), Anti-GAPDH antibody EPR16884 Loading Control (Abcam cat.# ab181603).
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2

Western Blot Analysis of Lung Proteins

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Protein samples from whole lung tissues or cultured cells were subjected to Western blot analysis with antibodies against Cavin-2 (Proteintech), Caveolin-1 (Santa Cruz Biotechnology), phosphorylated eNOS (Cell Signaling), eNOS (Cell Signaling), nitrotyrosine (Abcam), PKG-1α (Enzo), phospho-Smad1 (Ser463/465)/Smad5 (Ser463/465)/Smad9 (Ser465/467) (Cell Signaling), Smad1 (Cell Signaling), phospho-MLC2 at Ser19 (Cell Signaling), MLC (Cell signaling), and Gapdh (Abcam). Signal intensities were determined using Image J software (National Institutes of Health, Bethesda, MD). Uncropped data of Western blots are provided in Figs. S7–S9.
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3

Western Blot Analysis of Smad and NF-κB Signaling

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Cells were lysed with RIPA Lysis and Extraction Buffer (ThermoScientificcat.#PI89900) buffer with protease/phosphatase inhibitor cocktail. The lysate was centrifuged at 12000g at 4°C for 15 min, boiled with Laemmli buffer for 7 min at 95°C, and transferred to PVDF membranes (Millipore). After blocking, membranes were incubated with primary antibody at 4°C overnight followed by incubation with corresponding secondary HRP-linked antibody. The following antibodies were used for western blotting: Smad1 (D59D7) XP® Rabbit mAb (Cell Signaling Technology cat#6944), Phospho-Smad1 (Ser463/465)/ Smad5 (Ser463/465)/ Smad9 (Ser465/467) (Cell Signaling Technology cat# CLS8160-24EA), NF-κB p65 (D14E12) XP® Rabbit mAb (Cell Signaling Technology cat#8242), Phospho-NF-κB p65 (Ser536) (93H1) Rabbit mAb (Cell Signaling Technology cat#3033), Anti-GAPDH antibody EPR16884 Loading Control (Abcam cat#ab181603).
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