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5 protocols using phospho egfr y1068

1

Western Blotting with Targeted Inhibitors

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For western blotting, the following antibodies were used: phospho-EGFR Y1068 (Abcam); EGFR, pERK1/2 T202/204, ERK1/2, p-AKT S473, BIM, Actin (Cell Signaling); AKT1/2/3 (Santa Cruz). For cell culture studies, gefitinib, WZ4002, NVP-AEW541, ABT-263 (all from Selleck), were dissolved in DMSO to a final concentration of 10 mmol/l and stored at −20°C. Unless otherwise specified, 1 μM concentration was used for in vitro cell culture experiments.
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2

Investigating EGFR and FGF Signaling Pathways

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The following antibodies were used: phospho EGFR Y1068 (Abcam AB5644),
phospho EGFR Y1068 (Cell Signaling 3777), EGFR (Cell Signaling 2646), EGFR (Cell
Signaling 4267), phospho ERK1/2 T202/Y204 (Cell Signaling 9101), phospho ERK1/2,
T202/Y204 (Cell Signaling 4370), ERK1/2 (Cell Signaling 9102), phospho AKT S473
(Cell Signaling 4060), AKT1/2/3 (Santa Cruz sc-8312), BIM (Cell Signaling 2933),
Actin (Cell Signaling 4970), Actin-HRP conjugated (Cell Signaling 12262), FGFR1
(Cell Signaling 9740), and FGFR3 (Cell Signaling 4574), phospho FRS2α
Y436 (Cell Signaling 3861), E-Cadherin (Cell Signaling 3195), N-Cadherin (Cell
Signaling 13116), Zeb1 (Cell Signaling 3396), Vimentin (Cell Signaling 5741).
Gefitinib, WZ4002, AZD9291, and BGJ398 (all from Selleck) were dissolved in DMSO
to a final concentration of 10 mmol/liter and stored at −20 °C.
The 18 drugs tested in the long-term assay are listed in Supplemental Table 3.
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3

Western Blotting with Targeted Inhibitors

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For western blotting, the following antibodies were used: phospho-EGFR Y1068 (Abcam); EGFR, pERK1/2 T202/204, ERK1/2, p-AKT S473, BIM, Actin (Cell Signaling); AKT1/2/3 (Santa Cruz). For cell culture studies, gefitinib, WZ4002, NVP-AEW541, ABT-263 (all from Selleck), were dissolved in DMSO to a final concentration of 10 mmol/l and stored at −20°C. Unless otherwise specified, 1 μM concentration was used for in vitro cell culture experiments.
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4

Investigating EGFR and FGF Signaling Pathways

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The following antibodies were used: phospho EGFR Y1068 (Abcam AB5644),
phospho EGFR Y1068 (Cell Signaling 3777), EGFR (Cell Signaling 2646), EGFR (Cell
Signaling 4267), phospho ERK1/2 T202/Y204 (Cell Signaling 9101), phospho ERK1/2,
T202/Y204 (Cell Signaling 4370), ERK1/2 (Cell Signaling 9102), phospho AKT S473
(Cell Signaling 4060), AKT1/2/3 (Santa Cruz sc-8312), BIM (Cell Signaling 2933),
Actin (Cell Signaling 4970), Actin-HRP conjugated (Cell Signaling 12262), FGFR1
(Cell Signaling 9740), and FGFR3 (Cell Signaling 4574), phospho FRS2α
Y436 (Cell Signaling 3861), E-Cadherin (Cell Signaling 3195), N-Cadherin (Cell
Signaling 13116), Zeb1 (Cell Signaling 3396), Vimentin (Cell Signaling 5741).
Gefitinib, WZ4002, AZD9291, and BGJ398 (all from Selleck) were dissolved in DMSO
to a final concentration of 10 mmol/liter and stored at −20 °C.
The 18 drugs tested in the long-term assay are listed in Supplemental Table 3.
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5

Comprehensive Western Blot Analysis

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Cells were washed with ice-cold PBS and lysed with RIPA buffer (Cell Signaling Technology) supplemented with protease and phosphatase inhibitors (Roche). Protein levels were quantified with Bradford dye reagent (Bio-Rad), and equal amounts were loaded for SDS/PAGE using precast Bis-Tris gels (Invitrogen), followed by transfer to polyvinylidene difluoride membranes. Membranes were blotted with the following antibodies according to the supplier’s recommendations and were all obtained from Cell Signaling Technology unless otherwise noted: phospho-EGFR Y1068 (no. 3777), EGFR E746-A750del specific (no. 2085), phospo-MET Y1234/1235 (no. 3777), MET (no. 8198), phospho-SFK (no. 6943), YES (no. 3201), phospho-YAP1 Y357 (no. ab62751; Abcam), YAP1 (no. 14704), phospho-AKT S473 (no. 4060), AKT (no. 4691), phospho-ERK T202/Y204 (no. 4370), ERK (no. 4695), phospho-ERBB3 Y1197 (no. 4561), ERBB3 (no. 12708), and GAPDH (no. 2118). Human phosphokinase (no. ARY003B; R&D Systems) and human phospho-RTK (no. ARY001B; R&D Systems) array kits were used according to the manufacturer’s protocols.
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