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4 protocols using oxaliplatin l ohp

1

Oxaliplatin and GRP78 Inhibitor Protocol

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Oxaliplatin (L-OHP) and the GRP78 inhibitor vomitoxin (VT) were purchased from Sigma-Aldrich (Merck KGaA, Darmstadt, Germany). L-OHP was stored as a 20 mM solution in dimethyl sulfoxide (DMSO) at −20°C, and was diluted with RPMI 1640 medium prior to use with the highest concentration of DMSO in culture being 0.05% (v/v). The rabbit polyclonal anti-GRP78/Bip antibody (cat no. ab21685) was purchased from Abcam Ltd (Cambridge, MA, USA). Anti-CD24-SWA11 monoclonal antibody used for immunoprecipitation (IP) was obtained from Professor Hans-Peter Altevogt (Department of Translational Immunology, German Cancer Research Center, Heidelberg, Germany), in whose lab the antibody was generated (32 (link)). Anti-CD24 monoclonal antibody (cat. no. SC-7034) used for western blotting and IP, β-actin antibody (cat. no. SC130301) and horseradish peroxidase-conjugated goat anti-rabbit IgG (cat. no. SC2004) were purchased from Santa Cruz Biotechnology, Inc. (Dallas, TX, USA).
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2

Pancreatic Cancer Cell Lines and Treatments

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The human pancreatic adenocarcinoma (PDA) cell lines MIA PaCa-2, PANC-1, AsPC-1, Capan-1 and Capan-2 were obtained from the American Type Culture Collection (Manassas, VA, USA) [21 (link)]. All cell lines were cultured in Dulbecco’s modified Eagle medium (Nissui Pharmaceutical, Tokyo, Japan) supplemented with penicillin/streptomycin (Life Technologies, Carlsbad, CA, USA) and 10 % heat-deactivated fetal bovine serum. Gemcitabine (GEM) was purchased from Eli Lilly Japan (Kobe, Japan), five-fluorouracil (5FU) was purchased from Kyowa Hakko Kirin Co. (Tokyo, Japan), and oxaliplatin (L-OHP) was purchased from Sigma-Aldrich (St. Louis, MO, USA). Trastuzumab was a gift from Chugai, Inc. (Tokyo, Japan), and trastuzumab emtansine (T-DM1) was provided by Genentech Inc. (South San Francisco, CA, USA).
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CRC Cell Line Treatments and Transfection

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The human CRC cell lines SW480 (ATCC CCL-228), WiDr (ATCC CCL-218), DLD-1 (ATCC CCL-221), HT-29 (ATCC HTB-38) and SW620 (ATCC CCL-227) were purchased from American Type Culture Collection (ATCC). Authentication was done by the authors in all cases (LGC Standards). Cell lines were maintained in RPMI-1640 (Invitrogen) with 10% fetal bovine serum and were grown at 37°C in a 5% CO2 atmosphere. Media were supplemented with penicillin G (100 U/ml), and streptomycin (0.1 mg/ml). Cells were treated with oxaliplatin (LOHP) (1 μM) (Sigma), 5-fluorouracil (5-FU) (1 μM) (Sigma) and FTY720 (10 μM) (Calbiochem) as previously reported [6 , 9 (link)]. For transfection experiments, CRC cells were seeded in 6-well plates and transfected with 10 μl of Lipofectamine 2000 (Life Technologies) and 2 μg of SET plasmidic vector or 20 nM of a miR-199b specific mirVana™ miRNA Mimic and Inhibitor (Ambion).
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4

Immunoblotting and Immunofluorescence Assay Protocol

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5-FU, oxaliplatin (L-OHP), and propidium iodine (PI) were purchased from Sigma-Aldrich, Munich, Germany; MS-275 and MERCK60 were from Selleck Chemicals, Munich, Germany; and TO-PRO-3 was from Life Technologies, Ober-Olm, Germany. Antibodies for immunoblot were from: Millipore, Darmstadt, Germany (HDAC1 (05–100); acetylated histone H3 (06–599)), Santa Cruz Biotechnology, Heidelberg, Germany (HDAC2 (sc-7899); ɣH2AX (sc-101696)), Enzo Life Sciences, Lörrach, Germany (HSP90 (ADI-SPA-830)), Novus Biologicals, Heidelberg, Germany (p-KAP1 (Ser824), NB100-2350), Abcam, Cambridge, UK (p-ATM (Ser1981), ab81292; HDAC3, ab16047), Cell Signaling Technology, Frankfurt/Main, Germany (ATM (cs-2873); p-AKT1/p-AKT2/p-AKT3 (cs-9271; Ser473); CHK1 (cs-2360); HDAC6 (cs-7558); anti-p-Ser15-p53 (cs-9284); TS (cs-9045)), Sigma-Aldrich, Munich, Germany (acetylated tubulin (6-11B-1), T7451), BD Biosciences, Heidelberg, Germany (β-catenin (BD610154)), Thermo Fisher Scientific, Frankfurt/Main, Germany (RRM2 (PA5-13,570); vimentin (V9), MS-129-P). Antibodies against HDAC2 (#5113) from Cell Signaling Technology, Frankfurt/Main, Germany, and HDAC1 (05–100) from Millipore, Darmstadt, Germany, were used for immunofluorescence analysis.
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