메뉴 건너뛰기




Volumn 20, Issue 19, 2010, Pages 5818-5821

Fluorinated 2′-hydroxychalcones as garcinol analogs with enhanced antioxidant and anticancer activities

Author keywords

Antioxidant; Antiproliferative; Breast cancer; Fluorochalcones; Hydroxychalcones; Pancreatic cancer

Indexed keywords

ANTINEOPLASTIC AGENT; ANTIOXIDANT; CARBON; CHALCONE DERIVATIVE; CYCLOOXYGENASE 2; FLUORINE; GARCINOL; UNCLASSIFIED DRUG; 2' HYDROXYCHALCONE; 2'-HYDROXYCHALCONE; PTGS2 PROTEIN, HUMAN; SUPEROXIDE DISMUTASE; TERPENE;

EID: 77957555080     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2010.07.128     Document Type: Article
Times cited : (63)

References (32)
  • 19
    • 77957592273 scopus 로고    scopus 로고
    • note
    • Synthesis of chalcones: the chalcones were synthesized by condensing equimolar quantities of o-hydroxyacetophenone with corresponding hydroxy/fluoro benzaldehyde in methanol with a drop of aqueous potassium hydroxide solution (50%) ensuring neutral pH. Reaction mixture was stirred overnight after which it was poured on the crushed ice and acidified with hydrochloric acid. The resulting precipitates were filtered, washed with cold methanol and re-crystallized from acetone. The final products were characterized by detailed spectroscopic and micro analytical data.
  • 24
    • 77957604832 scopus 로고    scopus 로고
    • note
    • Docking studies: AutoDock 4.0 software was used to analyze ligand interactions with the crystal structure binding site of COX-2 obtained from PDB ID (6COX). Autodock calculates a rapid energy evaluation through pre-calculated grids of affinity potentials with a variety of search algorithms to find appropriate binding positions. The 3-D grid box has been generated a grid center co-ordinates 21.804, 21.72, 49.4 (X, Y, and Z axis) with grid spacing 0.37 considering active site residues included within it. Stable docking conformation of compounds achieved by implementing energy minimization parameter AMBER force field until the gradient convergence value of 0.05 kcal/mol was reached with distance-dependent dielectric function (e = 4r). New designed compounds were placed in grid box of COX-2 for docking process. Customized docking parameters were set in Autodock for best results for understanding interaction studies with new designed compounds. Parameter settings were set to 1500 iterations, 50 population sizes, 100.0 kcal/mol of energy threshold for pose generation, 300 simplex evolution steps, and 1.0 neighbor distance factor. For preparing the AutoDock docking parameter file we used default settings (genetic algorithm parameters: population size = 150, number of energy evaluations = 2,500,000, rate of gene mutation = 0.02, rate of crossover = 0.8, maximum number of generations = 27,000, number of GA runs = 10, initial dihedrals were randomly specified, elitism value was set to 1). Prior to docking, total Kollman and Gasteiger charges were added to the protein and the ligand.
  • 25
    • 77957572587 scopus 로고    scopus 로고
    • note
    • 2 with stirring and measuring the absorbance of solution at 560 nm with an interval of 30 s for 5 min. Ascorbic acid was used as a standard.
  • 28
    • 77957603524 scopus 로고    scopus 로고
    • note
    • 2-humidified atmosphere at 37 °C. The cell lines have been tested and authenticated in core facility Applied Genomics Technology Center at Wayne State University. The method used for testing was short tandem repeat profiling using the PowerPlex 16 System from Promega.
  • 29
    • 77957576192 scopus 로고    scopus 로고
    • note
    • 3) were seeded in a 96-well culture plate. Each treatment had eight replicate wells and, moreover, each experiment was repeated at least three times. Test compounds were dissolved in DMSO and added to cells 24 h after seeding. At the end of treatment, MTT (0.5 mg/ml) was added and plates incubated at 37 °C for 2 h followed by replacement of media with DMSO at room temperature for 30 min. Ultra Multifunctional Microplate Reader (TECAN) was used to record the absorbance.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.