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4 protocols using phospho c src

1

Molecular Signaling Pathway Analysis

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Dulbecco’s modified Eagle’s medium (DMEM)/F-12 medium, fetal bovine serum (FBS), and TRIzol were from Invitrogen (Carlsbad, CA). Hybond C membrane and enhanced chemiluminescence (ECL) Western blot detection system were from GE Healthcare Biosciences (Buckinghamshire, UK). Phospho-c-Src (Cat# 6943), phospho-Jak2 (Cat# 3776), phospho-ERK1/2 (Cat# 4370), phospho-STAT3 (Cat# 9145), COX-2 antibody (Cat# 12,282) antibodies were from Cell Signaling (Danver, MA). Anti-glyceraldehyde-3-phosphate dehydrogenase (GAPDH, Cat# GTX627408) antibody was from GeneTex (Irvine, CA, USA). Celecoxib (CLC), AG490, U0126, cucurbitacin E (CBE), Sc-19220, L798-106, and GW627368 were from Santa Cruz (Santa Cruz, CA). PP1 was from Biomol (Plymouth Meeting, PA). Bicinchoninic acid (BCA) protein assay reagent was from Pierce (Rockford, IL). Bradykinin (BK), enzymes, and other chemicals were from Sigma (St. Louis, MO).
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2

Western Blot Analysis of Signaling Proteins

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Cells were washed with ice-cold PBS, and proteins were extracted at 4°C with M-PER, an inhibitor cocktail. Equivalent amounts of protein were subjected to SDS-PAGE with 7.5–15% Tris-Glycin gradient gel or 15% Tris-Glycin gel and transferred onto PVDF membranes (Bio-Rad Laboratories, Inc.). After blocking with 6% milk/TBS-T, membranes were incubated with primary antibodies to Stat5a, Stat5b, RNA polymerase (Santa Cruz Biotechnology, Inc.), Cre recombinase (Covance), phospho-Stat5, cleaved caspase-3, ERK1/2, phospho-ERK1/2, JNK, phospho-JNK, p38, phospho-p38, phospho-Akt, Akt, phospho-IκB, IκB, phospho–c-Src (Cell Signaling Technology), c-Src (EMD Millipore), and β-actin (Sigma-Aldrich), followed by HRP-conjugated goat anti–mouse IgG and goat anti–rabbit IgG (Promega). Immunoreactive bands were visualized with ECL (GE Healthcare) according to the manufacturer’s instructions. The blots were stripped by incubating for 20 min in stripping buffer (2% SDS, 100 mM 2-mercaptoethanol, and 62.5 mM Tris-HCl, pH 6.7) at 50°C and then were reprobed with other antibodies.
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3

TMS and trans-resveratrol Pharmacological Assay

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TMS and trans-resveratrol were purchased from Cayman Chemical (Ann Arbor, MI). DHE was from Invitrogen™ (Carlsbad, CA), the CYP1B1 antibody was from BD Biosciences (Franklin Lakes, NJ), and antibodies against α-smooth muscle-specific actin, ERK1/2, p38 MAPK, c-Src, and Akt were purchased from Santa Cruz Biotechnology, Inc. (Santa Cruz, CA). The primary phospho ERK1/2, phospho p38 MAPK, phospho c-Src, and phospho Akt anti-bodies were purchased from Cell Signaling Technology, Inc. (Danvers, MA). All other chemicals were purchased from Sigma (St. Louis, MO).
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4

Antibody Generation and Characterization

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The rabbit polyclonal antibody against HK1 was generated by immunizing rabbits with His-fusion or GST-fusion proteins of human HK1 containing fragments (aa 316–410). The HK1-p-Y732 and HK2-p-Y686 polyclonal antibodies were raised by immunizing rabbits with phospho-peptide VDE{pTyr}SLNAGKQRYEC and GTGSNAC{pTyr}MEEMR, respectively. Mouse anti-HA (clone number F-7, 1:1,000), anti-Myc (clone number 9E10, 1:1,000), anti-c-Src (clone number B-12, 1:1,000) and rabbit anti-HA (clone number Y-11, 1:1,000) were purchased from Santa Cruz. Rabbit anti-HK1 (clone number C35C4, 1:1,000), anti-HK2 (clone number C64G5, 1:1,000), phospho-c-Src (clone number D49G4, 1:1,000) and mouse anti-p-Tyr (catalog number #9411, 1:1,000) were purchased from Cell Signaling Technology. Mouse anti-FLAG (M2) (catalog number M8823, 1:5,000), anti-bromodeoxyuridine (clone number BMC9318, 0.2 μg per test) and anti-β-actin (clone number AC-15, 1:5,000) antibodies were purchased from Sigma. Deoxy-D-glucose 2-[1, 2-3H] (NET549250UC) and Glucose D-[6-14C] (NEC045X050UC) were purchased from PerkinElmer. 2-13C-glucose was purchased from Sigma. Various peptides were attained from Gen script (Nanjing) Company.
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