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6 protocols using sc 7345

1

RNA-binding protein immunoprecipitation

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Magna RIP™ RNA-binding protein immunoprecipitation kit (Millipore) was applied for RIP assays. Specifically, the 1 × 107 BV2 cell lysate was incubated with the negative control anti-IgG (ab190475, Abcam), anti-JNK (sc-7345, 1:500, Santa Cruz Biotechnology), anti-DUSP1 (sc-373841, 1:500, Santa Cruz Biotechnology), and anti-DUSP6 (ab76310, 1:1000, Abcam) conjugated magnetic beads. Subsequently, the RNA in the immunoprecipitation was extracted and the expression of TCONS_00145741 was analyzed using qRT-PCR.
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2

Isoliquiritigenin Platelet Activation Assay

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Isoliquiritigenin (961-29-5; the structure is listed in Figure 1A) was purchased from Weikeqi-biotech. Thrombin (T4393), ADP (A5285), PGE1 (P7527), fibrinogen (F3879), TRITC-Phalloidin (P1951), dimethyl sulfoxide (DMSO; D2650), bovine serum albumin (BSA; B2064), and Triton X-100 (X100) were purchased from Sigma-Aldrich. Collagen (LS001652) was purchased from Chrono-Log. Fluo 3-AM (F023-10) was purchased from Dojindo. Fluorescein-conjugated antibody to human CD62P (Clone: AK-4) and PAC-1 (Clone: PAC-1) were purchased from BD Biosciences. The antibodies for the immunoblot in this study were the following: anti-phospho-PLCγ2 (Tyr759) antibody (50535, CST), anti-phospho-ERK1/2 (Thr202/Tyr204) antibody (4370, CST), anti-ERK1/2 antibody (9194, CST), anti-phospho-Jun N-terminal kinase (JNK) (Thr183/Tyr185) antibody (sc-6254, Santa Cruz), anti-JNK antibody (sc-7345, Santa Cruz), anti-phospho-p38 MAPK (Thr180/Tyr182) antibody (4511, CST), anti-p38 MAPK antibody (8690, CST), anti-phospho-Akt (Ser473) antibody (4060, CST), anti-Akt antibody (sc-5298, Santa Cruz), and anti-GAPDH (ANT011, Antegene).
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3

Piceatannol Inhibits Fibrosis Markers

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Piceatannol was purchased from Future Chem (Seoul, Korea). Anti-alpha smooth muscle actin (α-SMA; 1:1000, sc-130617), anti-CTGF (1:1000, sc-14939), anti-HDAC3 (1:1000, sc-11417), anti-HDAC4 (1:1000, sc-11418), anti-HDAC5 (1:1000, sc-133225), anti-TGF-β1 (1:1000, sc-146), anti-JNK (1:1000, sc-7345), anti-ERK1 (1:1000, sc-271269), and anti-GAPDH (1:1000, sc-32233) antibodies were purchased from Santa Cruz Biotechnology (Dallas, TX, USA). Primary antibodies against collagen type I (1:1000, ab34710), HDAC2 (1:1000, ab12169), HDAC8 (1:1000, ab137474), and HDAC10 (1:1000, ab53096) were purchased from Abcam (Cambridge, MA, USA). Anti-fibronectin antibody (1:1000, MA5-11981) was purchased from Thermo Fisher Scientific (Waltham, MA, USA). Anti-HDAC1 antibody (1:1000, 06–720) was purchased from Merck Millipore (Darmstadt, Germany). Anti-HDAC6 (1:1000, 7612), anti-Smad3 (1:1000, 9523), anti-Smad2 (1:1000, 3103), anti-Smad4 (1:1000, 9515), anti-p-Smad3 (1:1000, 9520), anti-p-JNK (1:1000, 9251), anti-p-p38 (1:1000, 4511), anti-p-ERK1/2 (1:1000, 4370), and anti-p38 (1:1000, 8690) antibodies were purchased from Cell Signaling Technology (Danvers, MA, USA).
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4

Colon Cancer Cell Line Maintenance

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Human colon cell lines (HT-29, SW480, SW620, HCT116, and HRT18) were purchased from the American Type Culture Collection (ATCC) in 2010, maintained in our laboratory, and cultured with RPMI-1640 medium supplemented with 10% fetal bovine serum (Life Technologies) at 37 °C in 5% CO2. The cell lines were routinely tested for presence of mycoplasma with 4,6-diamidino-2-phenylindole staining, and were mycoplasma free.
Antibodies and reagents. Antibodies against RACK1 (sc-17754), Cyclin D1 (sc-450), Bax (sc-20067), cleaved PARP (sc-56196), Bcl-2 (sc-509) and JNK-2 (sc-7345) were purchased from Santa Cruz. Antibodies against SQSTM1 (ab207305), BECN1 (ab62557) and LC3-II (ab192890) were purchased from Abcam. Antibodies against LC3-I/II antibody (#4108) and phospho-JNK-1/2(#9255) were purchased from CST. Horseradish peroxidase-conjugated goat anti-rabbit (#A24531) and anti-mouse IgG antibodies (#A24512) were purchased from Life Technologies. Bafilomycin A1 (B1793) and 3-methyladenine (M9281) were purchased from Sigma-Aldrich.
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5

Setdb1 Knockdown Immunoblotting Protocol

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The cells were transfected with Setdb1 siRNA for 48 h. Approximately 30 μg protein was separated by 8–12% SDS-PAGE and transferred to PVDF membranes (Millipore). The membranes were probed using the following primary antibodies: NOX4 (1:500; NB110-58849; Novus), beta-Actin (1:2000; CW0096; CWBIO), SETDB1 (1:1000; 11231-1-AP; Proteintech), E2F1 (1:500; sc-193; Santa Cruz Biotechnology), FOXO4 (1:500; sc-5221; Santa Cruz Biotechnology), Lamin B (1:500; sc-6217; Santa Cruz Biotechnology), JNK (1:500; sc-7345; Santa Cruz Biotechnology), p-JNK (1:400; WL01813; WanleiBio), γH2AX (1:000; 2577; Cell signaling technology), p38 (1:500; sc-7972; Santa Cruz Biotechnology), and p-P38 (1:500; sc-17852-R; Santa Cruz Biotechnology). All were used as the manufacturer’s recommendation. The secondary antibodies were horse radish peroxidase-linked anti-mouse, anti-rabbit, or anti-goat IgG for 2 h at room temperature. The membranes were visualized on a Bio-Rad Chemidoc XRS using a Western Bright ECL Kit (Bio-Rad, Berkeley, CA, United States).
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6

Oxidative Stress Biomarker Assays

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MDA assay kit (LPO-586) was purchased from EMD Millipore (Billerica, MA, USA). GSH (CS0260), CAT (CAT100), SOD (19160) and GPx (CGP1) activity assay kits were obtained from Sigma-Aldrich (Merck Millipore, Darmstadt, Germany). Mouse monoclonal antibodies against JNK1/2 (sc-7345) and phospho-JNK1/2 (sc-6254) were purchased from Santa Cruz Biotechnology. All other chemicals were of reagent grade and purchased from Sigma-Aldrich (Merck Millipore), unless stated otherwise.
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