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2 protocols using erk1 sc 271270

1

Western Blot Analysis of Stemness and EMT Markers

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Samples were collected in RIPA buffer (Sigma) containing Complete Protease Inhibitor Cocktail (Roche Diagnostics), and protein concentration was determined by Bio-Rad Protein Assay. Western blot analysis was performed using the following antibodies: KRAS (sc-30), Pan-RAS (sc-32), ERK1 (sc-271270), and c-Myc (sc-40) from Santa Cruz Biotechnology; Sox2 (#2748, #3579), Oct-4 (#2750), Nanog (#4893), Slug (#9585), Snail (#3879), phospho-ERK1/2 (#9101), RAS (#3965), MEK1/2 (Ser217/221) (#4694), phospho-MEK1/2 (Ser217/221) (#9121, #9154), CD44 (#3578, #3570), E-cadherin (#14472), vimentin (#3932) and cleaved caspase-3 (#9661) from Cell Signaling; N-cadherin (BD610920) and E-cadherin (BD610181) from BD Biosciences; Zeb1 (NBP-1-05987) from Novus Biologicals; and β-actin from Sigma.
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2

Western Blot Analysis of Cellular Markers

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Samples were collected in radioimmunoprecipitation (RIPA) buffer (Sigma-Aldrich) containing Complete Protease Inhibitor Cocktail (Roche, Basel, Switzerland), after which protein concentrations were determined by the Bio-Rad Protein Assay (Bio-Rad Laboratories, Hercules, CA). Western blotting was performed using the following antibodies, ERK1 (sc-271270), ERK2 (sc-136288), and c-Myc (sc-40) from Santa Cruz Biotechnology; Sox2 (#2748, #3579), Oct-4 (#2750), Nanog (#4893), Slug (#9585), Snail (#3879), phospho-ERK1/2 (#9101), CD44 (#3578, #3570), E-cadherin (#14472), ERK1/2 (#4696), and cleaved caspase-3 (#9661) from Cell Signaling Technology (Danvers, MA); N-cadherin (BD610920) and E-cadherin (BD610181) from BD Biosciences; Zeb1 (NBP-1-05987) from Novus Biologicals (Centennial, CO); and β-actin from Sigma-Aldrich.
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