Cells were harvested in EBC lysis buffer (50 mM Tris-HCl at pH 7.5, 150 mM NaCl, 5 mM EDTA, 0.5% NP-40), supplemented with
Complete Mini Protease and Phosphatase Inhibitor Cocktails (Roche, Indianapolis, IN, USA). Cells were lysed and 30–80 µg protein subjected to SDS-PAGE followed by transfer onto an
Immobilon-FL PVDF membrane (Millipore, Billerica, MA, USA) and incubation with the indicated antibodies. Detection was carried out with an
Odyssey Infrared Imaging System (LI-COR Biosciences, Lincoln, NE, USA) with IR dye-tagged secondary antibodies (Alexa Fluor 750 goat anti rabbit IgG; Alexa Fluor 750 goat anti mouse IgG,
Alexa Fluor 680 goat anti rabbit IgG,
Alexa Fluor 680 goat anti mouse IgG from Invitrogen, 1:10,000 dilution). The following antibodies were utilized: p53 (1801; Mount Sinai School of Medicine Hybridoma Center, New York, NY, USA, 1:1000 dilution), YAP, CTGF, MYC, MLC2, RhoA, pan-Rac,
Cdc42,
ROCK1,
ROCK2,
GAPDH (Santa Cruz, Dallas, TX, USA, 1:1000 dilution),
p-YAP,
p-Cofilin,
p-MLC2,
Cofilin,
pPAK1/2, pPAK4/5, PAK2, PAK4, (Cell Signaling, Danvers, MA, USA, 1:1000 dilution), TEAD4, (Thermo Scientific, Waltham, MA, USA, 1:1000 dilution),
mouse anti-α-tubulin (1:10,000 dilution),
mouse anti-β-actin (Sigma, Saint Louis, MO, USA, 1:10,000 dilution).
Esposito D., Pant I., Shen Y., Qiao R.F., Yang X., Bai Y., Jin J., Poulikakos P.I, & Aaronson S.A. (2022). ROCK1 mechano-signaling dependency of human malignancies driven by TEAD/YAP activation. Nature Communications, 13, 703.