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2 protocols using pdgf 220 bb

1

Evaluating PQQ and NAC Effects on TGF-β1 and PDGF Signaling

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Recombinant human TGF-β1 (240-B-002) and PDGF (220-BB) were obtained from R&D system. Rabbit anti-phospho-JNK (#9251),-JNK (#9252),-phospho-p38 (#4511),-p38 (#9212),-phospho-Smad2 (#3108),-phospho-Smad3 (#9520),-Smad2/3 (#5678),-phospho-AKT (#2965),-AKT (#4691) and Rabbit anti-cleaved caspase-3 (#9664) were purchased from Cell Signaling Technology. Rabbit anti-phospho-ERK1/2 (sc-101760),-ERK1/2 (sc-292838), mouse anti-GAPDH (sc-47724), and goat anti-Col1A1 (sc-8784) antibodies were obtained from Santa Cruz Biotechnology. Rat anti-F4/80 (MCA497RT) antibody was obtained from Serotec. Sheep anti-albumin (ab8940) and mouse anti-CD68 (ab955) antibodies were purchased from Abcam. Pyrroloquinoline-quinone (PQQ) (D7783), mouse anti-α-SMA antibody (A2547), N-acetylcysteine (NAC) (A7250) and silymarin (S0292) were purchased from Sigma Aldrich. For in vitro studies, PQQ was used at increasing doses of 0.3 μg/ml, 3 μg/ml and 30 μg/ml if not indicated. NAC served as a positive control and was used at the dose of 800 μg/ml.
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2

Detailed Reagents and Materials Protocol

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The following items were purchased: fetal bovine serum (FBS), DMEM, RPMI, MEM and trypsin solution from Gibco (Life Technologies); RNeasy Mini kit from Qiagen (Hilden, Germany); High Capacity RNA-to-cDNA kit from Applied Biosystems (Darmstadt, Germany); NE-PER Nuclear and Cytoplasmic Extraction reagents and SuperSignal West Pico and Femto chemiluminescent substrates from Thermo Fisher Scientific (Rockford, IL, USA); FuGENE HD Transfection reagent from Promega (Madison, WI, USA); G418 (Geneticin) from Roche Diagnostics Deutschland GmbH (Mannheim, Germany); laminin, collagen from human placenta type IV [(collagen IV) from Sigma-Aldrich]; Cell Counting kit-8 from Dojindo Laboratories (Kumamoto, Japan); BioCoat Matrigel Invasion Chamber (8-µm pore size) and fibronectin from BD Biosciences (Franklin Lakes, NJ, USA); gemcitabine hydrochloride from Wako Pure Chemical Industries (Osaka, Japan); Fluorescent Mounting Medium from Dako Japan (Tokyo, Japan); Histofine Simple Stain Max PO (M) or (R) kit from Nichirei Biosciences, Inc., (Tokyo, Japan); and recombinant human epidermal growth factor (EGF, 236-EG) and recombinant human platelet-derived growth factor (PDGF, 220-BB) from R&D Systems (Minneapolis, MN, USA).
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