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Volumn 20, Issue 3, 2010, Pages 1237-1240

Benzimidazole- and indole-substituted 1,3′-bipyrrolidine benzamides as histamine H3 receptor antagonists

Author keywords

Histamine H3 receptor antagonist; Histamine H3 receptor inverse agonist

Indexed keywords

5 (4 CYANOPHENYL) 2 [2 (2 METHYL 1 IMIDAZOLIDINYL)ETHYL]BENZOFURAN; 6 (3 CYCLOBUTYL 2,3,4,5 TETRAHYDRO 1H 3 BENZAZEPIN 7 YLOXY) N METHYLNICOTINAMIDE; CIPROXIFAN; FUB 181; HISTAMINE H3 RECEPTOR ANTAGONIST; JNJ 5207852; UNCLASSIFIED DRUG; BENZAMIDE DERIVATIVE; BENZIMIDAZOLE; BENZIMIDAZOLE DERIVATIVE; HISTAMINE H3 RECEPTOR; INDOLE DERIVATIVE; PROTEIN BINDING; PYRROLIDINE DERIVATIVE;

EID: 74049129463     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2009.11.122     Document Type: Article
Times cited : (14)

References (31)
  • 20
    • 74049151518 scopus 로고    scopus 로고
    • Heightman, T. D. WO2004035544, 2004.
    • Heightman, T. D. WO2004035544, 2004.
  • 21
    • 74049111444 scopus 로고    scopus 로고
    • note
    • HEK293T cells expressing the human cloned histamine H3 receptor were harvested in phosphate-buffered saline (PBS) and pelleted by centrifugation at 1000g for 5 min at 4 °C and membranes were prepared by homogenizing the cell pellets in ice-cold 50 mM Tris-HCl buffer, pH 7.4 and 0.5 mM EDTA for approximately 30 s using a Polytron homogenizer. The homogenates were centrifuged at 40,000g for 30 min at 4 °C, and the resulting pellet was re-homogenized and centrifuged as described above. The membranes were finally resuspended in 50 mM Tris-HCl buffer, pH 7.4 at a concentration of approximately 1 mg protein/mL, and were stored at -70 °C until use. Receptor binding studies were carried out on these membranes in 50 mM Tris-HCl buffer, pH 7.4, at room temperature. Assays consisted of 100 μL of displacing compound (final concentration of 0.05 nM-500 nM) or buffer, 20 μL of [3H]R-α-methylhistamine at a final concentration of 5 nM and the reaction was initiated by the addition of 100 mL of human H3 receptor membranes (30 μg of protein/well). Nonspecific binding was determined in the presence of 10 mM clobenpropit. The experiments were terminated by rapid filtration through a GF/B filter plate (presoaked in 0.1% (v/v) polyethyleneimine), and then the filters were washed with ice-cold buffer (50 mM Tris-HCl). Filters were dried and then 25 μL of Microscint 20 was added to each well. Radioactivity was determined by liquid scintillation spectrometry using a Packard TopCount.
  • 22
    • 74049162402 scopus 로고    scopus 로고
    • note
    • 2+-free) containing 500 μM IBMX. Cells were detached, by gentle tapping, and resuspended in the same buffer. 2000 cells/well were incubated with 1 μM histamine, 10 μM forskolin and test compounds (0.03 nM-10 μM) in a total volume of 30 μL in 96-well plates for 30 min at 30 °C. Cyclic AMP levels were then measured using the HitHunter cAMP kit (DiscoveRx, Fremont, CA) according to the manufacturer's instructions. Chemiluminescent signals were detected using a Packard TopCount. Data were analyzed using Prizm.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.