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8 protocols using bradykinin

1

Neurochemical Reagents for Receptor Studies

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5-Hydroxytryptamine (serotonin, 5HT), gamma-aminobutyric acid (GABA), capsaicin, ritanserin, tropisetron hydrochloride along with bulk chemicals were obtained from Sigma-Aldrich (Vienna, Austria). Bradykinin, 6-(1,1-Dimethylethyl)-2-[(2-furanylcarbonyl) amino]-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid (CaCC Inh. - A01), SB 204741 (N-(1-Methyl-1H-5-indolyl)-N′ -(3-methyl-5-isothiazolyl)urea), thapsigargin, and XE991 (10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenone) were purchased from Tocris (Bristol, UK). 4-(4-fluorobenzoyl)-1-(4phenylbutyl) piperidine (4 F 4 PP) oxalate was obtained from Santa Cruz Biotechnology, Inc. (Heidelberg, Germany), capsazepine from Sanova Pharma Ges. m. b. H. (Vienna, Austria), 8-[5-(2,4-dimethoxy-5-(4-trifluoromethylphenylsulphonamido) phenyl-5-oxopentyl]-1,3,8-triazaspiro[4,5]decane-2,4-dione (RS102221) from Szabo-Scandic (Vienna, Austria), and tetrodotoxin (TTX) from Latoxan (Valence, France).
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2

Opioid and Receptor Modulator Assays

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Naloxone (NLX), nordihydroguaiaretic acid (NDGA) and paroxetine were from Cayman Chemical. GFX 109203X (GFX) and CTAP were from Tocris Bioscience. [D-Ala2, N-Me-Phe4, Gly5-ol]-Enkephalin (DAMGO), bradykinin and common reagents were from Sigma-Aldrich.
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3

Neurochemical Reagents for Receptor Studies

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5-Hydroxytryptamine (serotonin, 5HT), gamma-aminobutyric acid (GABA), capsaicin, ritanserin, tropisetron hydrochloride along with bulk chemicals were obtained from Sigma-Aldrich (Vienna, Austria). Bradykinin, 6-(1,1-Dimethylethyl)-2-[(2-furanylcarbonyl) amino]-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid (CaCC Inh. - A01), SB 204741 (N-(1-Methyl-1H-5-indolyl)-N′ -(3-methyl-5-isothiazolyl)urea), thapsigargin, and XE991 (10,10-bis(4-pyridinylmethyl)-9(10H)-anthracenone) were purchased from Tocris (Bristol, UK). 4-(4-fluorobenzoyl)-1-(4phenylbutyl) piperidine (4 F 4 PP) oxalate was obtained from Santa Cruz Biotechnology, Inc. (Heidelberg, Germany), capsazepine from Sanova Pharma Ges. m. b. H. (Vienna, Austria), 8-[5-(2,4-dimethoxy-5-(4-trifluoromethylphenylsulphonamido) phenyl-5-oxopentyl]-1,3,8-triazaspiro[4,5]decane-2,4-dione (RS102221) from Szabo-Scandic (Vienna, Austria), and tetrodotoxin (TTX) from Latoxan (Valence, France).
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4

Comprehensive Chemical Reagents for Cell Experiments

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NaCl, KCl, and d‐glucose were purchased from Fisher Scientific (Loughborough, UK); MOPS, EDTA, CaCl2·2H2O, pyruvate, PBS sachets, Tween20, and bovine serum albumin were purchased from Sigma (Poole, UK); and MgSO4·7H2O, NaOH, and NaH2PO4·H2O were purchased from VWR (Leicestershire, UK). Bradykinin and U46619 were purchased from Tocris (Bristol, UK). The structural dyes Hoechst (H3570), PI (P1304MP), DAPI (D3571), and AF‐633 (A30634) were purchased from ThermoFisher Scientific (Paisley, UK) and phalloidin‐TRITC from Sigma‐Aldrich (Dorset, UK). Paraformaldehyde was purchased from Electron Microscope Sciences (Hatfield, PA).
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5

Angiogenic Effects of Bradykinin

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A total of 60 μl Matrigel (10 mg/ml, Corning Inc.) was coated in the wells of a 96-well plate, and 104 HUVECs in 100 μl medium were then placed onto the layer of Matrigel in each well. The concentration variable (0.1, 1 and 10 μM) Bradykinin (Tocris Bioscience) and the Bradykinin B2 receptor antagonist, HOE140, (Tocris Bioscience) were supplemented to the corresponding wells. Medium alone served as the control. Tube morphogenesis was assessed under an Olympus IX73 microscope (Olympus) within 12 h. Each group had triplicate wells and the total tube length was quantified using ImageJ 1.8.0 software.
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6

Calcium Signaling in Pancreatic Stellate Cells

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Animals: C57BL6/J mice (Charles Rivers). Antibodies: Alexa Fluor 488 goat anti-mouse, Alexa Fluor 635 goat anti-rabbit (Thermo Fisher Scientific); mouse anti-BDKRB2 (Santa Cruz); rabbit anti-NOS2 (Merck). Cell culture: human pancreatic stellate cell line, SteCM complete stellate cell medium (ScienCell). Chemicals: aminoguanidine (AG), bradykinin, l-NAME (Tocris); PBS, ProLong Diamond Antifade Mountant with DAPI (Thermo Fisher Scientific); other chemicals were obtained from Sigma. Fluorescent dyes: DAF-2 (Santa Cruz); DAF-FM, Fluo-4, Fura-2, Hoechst 33342, propidium iodide (Thermo Fisher Scientific).
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7

Pharmacological Agents for Cell Studies

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The drugs apamin, charybdotoxin, tetraethylammonium chloride, atropine, haloperidol, pindolol, yohimbine, prazosin, phenylpherine, clonidine, caffeine, glibenclamide, β-funaltrexamine, naltrindole, nor-binaltorphimine, all purchased from Sigma Aldrich (U.S.A.) and bradykinin (Tocris Bioscience, U.K.), were prepared at the desired dose by dissolving them in distilled water (dH2O). Phorbol 12-myristate 13-acetate (Sigma Aldrich, USA) was dissolved in PBS solution. Acetic acid and dimethyl sulfoxide (DMSO) were purchased from Fisher Scientific (U.K.).
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8

Comprehensive Reagent Procurement for Cell-Based Assays

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NaCl, KCl, and D-glucose were purchased from Fisher Scientific (Loughborough, UK); MOPS, EDTA, CaCl2 2H2O, pyruvate, PBS sachets, Tween20, and bovine serum albumin were purchased from Sigma (Poole, UK); MgSO4 7H2O, NaOH, and NaH2PO4 H2O were purchased from VWR (Leicestershire, UK); and bradykinin was purchased from Tocris (Bristol, UK). The cellular dyes Hoechst 33342 (H3570), PI (P1304MP), DAPI (D3571), and AF-633 (A30634) were purchased from ThermoFisher Scientific (Paisley, UK), phalloidin-TRITC from Sigma-Aldrich (Dorset, UK), and fluo-8 AM from AAT Bioquest (Stratech, Newmarket, UK). Paraformaldehyde was purchased from Electron Microscope Sciences (Hatfield, PA, USA).
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