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12 protocols using gr159897

1

Neurochemical Profiling of Dopamine Signaling

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Atropine sulfate, guanethidine monosulphate, Nω-nitro-L-argininemethylester, 6-hydroxy dopamine, and ascorbic acid were purchased from Sigma Chemicals Co. (St. Louis, MO, USA). Tetrodotoxin, Substance P, N-acetyl-L-tryptophan 3,5-bis (trifluoromethyl) benzyl ester, GR159897, and SB218795 were purchased from Tocris (Bristol, UK). Mouse anti-TH antibody (1:2000) was purchased from Chemicon International (Temecula, CA, USA). Biotinylated anti-mouse IgG antibody (1:1000) and nickel-intensified 3,3′-diaminobenzidine tetrahydrochloride (DAB Substrate Kit for peroxidase) were purchased from Vector Laboratories (Burlingame, CA, USA). Neutral-buffered formaldehyde (NBF) and xylene were purchased from Carlo Erba (Milan, Italy).
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2

DNBS-induced colitis in mice

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Acute colitis was induced in male and female mice under isoflurane anesthesia by an enema of 0.1 mL of a solution containing 5 mg dinitrobenzene sulfonic acid (DNBS) dissolved in 50% ethanol.26 (link) Control animals were given enemas of saline. Subsets of mice received daily injections (intraperitoneally) of either 0.5 mg/kg GR 159897 (Tocris, Minneapolis, MN) in 0.1% dimethyl sulfoxide or 0.1% dimethyl sulfoxide over 1, 3, 7, or 21 days beginning 24 hours before the induction of colitis. Mice were monitored closely and weight loss was recorded daily for the first week and once every other day for the following 2 weeks. Mice were killed at 24 hours, 48 hours, 7 days, or 3 weeks after induction of colitis. Macroscopic damage was recorded with an established scoring system.27 (link)
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3

Chemical Reagents and Compounds

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Atropine was purchased from Wako Pure Chemical (Osaka, Japan). Carbachol (CCh) and pyr3
were purchased from Sigma-Aldrich (St. Louis, MO, USA). CP99994 and GR159897 were
purchased from Tocris Bioscience (Bristol, UK). Neurokinin (NK) A and substance P (SP)
were purchased from Peptide Institute (Osaka, Japan).
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4

Investigating Neurotransmitter Receptor Signaling

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Unless otherwise stated, all chemicals and reagents were purchased from Sigma-Aldrich (St. Louis, MO). GR 159897 (5-fluoro-3-[2-(4-methoxy-4-[([R]-phenylsulphinyl)methyl]-1-piperidinyl)ethyl]-1H-indole), MRS 2500 tetraammonium salt ([1R*,2S*]-4-[2-lodo-6-(methylamino)-9H-purin-9-yl]-2-[phosphonooxyl]bicyclo[3.1.0]hexane-1-methanol dihydrogen phosphate ester tetraammonium salt), and CP 96345 ([2S,3S]-N-[2-methoxyphenyl]methyl-2-diphenylmethyl-1-azabicyclo[2.2.2]octan-2-amine) were purchased from Tocris. NKA was purchased from Abcam (Cambridge, MA). The Cx43 mimetic peptide, 43Gap 26, was purchased from Anaspec (Fremont, CA). Di-nitro benzenesulfonic acid (2,4-dinitrobenzenesulfonic acid dihydrate) was purchased from MP Biomedicals (Solon, OH).
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5

Characterizing NK Cell Responses Using Antibodies and Cytokines

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Fluorescent dye‐conjugated anti‐CD45 (30‐F11) and anti‐mouse CD11c (N418) were obtained from BioLegend or BD Biosciences. 7‐amino‐actinomycin D (7AAD) was purchased from Beckman Coulter. Rabbit polyclonal antibody against NK2R (M‐48) was purchased from Santa Cruz Biotechnology, Inc. Recombinant murine IFN‐α15 (752802) and human IFN‐α2 (592702) were purchased from BioLegend and murine IFN‐β (8234‐MB) was from R&D systems Inc. Recombinant human IFN‐β (092–06061) and neurokinin A agonist (140–07171) were purchased from Wako Pure Chemical Industries. An NK2R‐selective antagonist (GR 159897) was purchased from TOCRIS Bioscience. Poly I:C (HMW) was purchased from InvivoGen. A selective JAK1/2 inhibitor (ruxolitinib) was purchased from abcam.
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6

Biochemical Assays for Inflammation

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Aβ was purchased by Biochem (Germany). Atropine sulphate, SP, guanethidine monosulphate, nigericin, Ac-YVAD-cmk, bacterial LPS (Escherichia coli 026:B6) and DMSO, sucrose, Tris, EGTA, Triton X-100, Tris-buffer, DTNB, acetil-coenzyme A, oxaloacetate and anti-β-actin-HRP (A3854) were purchased from Sigma Chemicals Co. (St. Louis, MO, USA). Foetal bovine serum (FBS) was obtained from PAA Laboratories. TTX, GR159897, SB218795, L-NAME were obtained from Tocris (Bristol, UK). Anti-IL-1β (anti-human) was purchased by R&D, rabbit anti-ASC (SC-22514-R) by Santa Cruz. Secondary antibody HRP conjugates were from DAKO. Alexa Fluor 594-conjugated donkey anti-rabbit antibody (A-21207) was purchased by Invitrogen.
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7

Recombinant NK Receptor Expression in CHO Cells

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Human recombinant NK2 and NK1 receptors were stably expressed in CHO cells using the standard FuGENE protocol and vectors from Genecopeia (Rockville, USA). Stock solutions (10 mM) of GR159897 (Tocris, Bristol, UK), aprepitant (Selleck Chemicals, Houston, USA), GR64349 (Tocris, Minneapolis, USA), NKA and substance P (Sigma-Aldrich, St Luis, USA) were prepared in DMSO and frozen at −20°C until use. Further dilutions were made in DMSO to span a final concentration range of 0.01 nM to 10 μM.
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8

Neuroinflammation Modulation Assays

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Aβ, atropine sulphate, carbachol, Dulbecco’s modified Eagle’s medium (DMEM), fetal bovine serum (FBS), guanethidine monosulphate, lipopolysaccharide (LPS), PEA and PBS were purchased from Sigma Aldrich (St. Louis, MO, United States). L-NAME, L-732,138, GR159897, SB218795, SP and TTX were purchased from Tocris (Bristol, United Kingdom).
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9

Neuromodulatory Agents in Cell Cultures

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5-HT hydrochloride powder (Sigma) and octopamine hydrochloride (OA; Sigma) were dissolved in 0.1 M HCl. Both 5-HT and OA were freshly added to plates, and used at a final concentration of 5 mM (ref. 1 (link)). GR159897 (Tocris) was used at the final concentrations of 0.04, 0.016 and 0.008 mM in 10% dimethyl sulfoxide. The doses were chosen after ensuring that there were no developmental delays, or other overt effects on growth.
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10

Synthesis and Characterization of LMN-NKA

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Gelatin type B and glycine (ACS agent, 98.5%) were purchased from Fisher Scientific (Pittsburg, PA, USA). Sorbitol Solution USP (70%) was obtained from Spectrum Chemical MFG Corp (Gardena, CA, USA). HPLC grade trifluoroacetic acid and acetonitrile were purchased from Sigma-Aldrich (St. Louis, MO, USA). LMN-NKA was synthesized for Dignify Therapeutics (Durham, NC, USA) by Bachem America Inc (Torrance, CA, USA). GR159897 (NK2 receptor antagonist; Tocris, Bristol, United Kingdom) was solubilized at 50 mM in DMSO and diluted with saline to a concentration of 1 mg/mL.
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