Abstract:
:Recent reports show that the natural beta-diketone curcumin displays important biological properties regarding the intercellular adhesion molecule-1 (ICAM-1), which plays a critical role in the immune responses and inflammation. In this study the ICAM-1 inhibitory activity of beta-diketone compounds, which are curcumin models lacking aromatic peripheral hydroxyl and methoxy groups, along with some metal derivatives is investigated. Beta-diketones are systematically more active than metal complexes and the best obtained inhibition is 75% for both groups. The best inhibitors are 4-benzoyl-3-methyl-1-phenyl-pyrazol-5-one (HQ(Ph)) among the ligands, and sodium benzoylacetonato among metal derivatives. These results appear in line with the reported antitumor activity of related species. Since 4-acyl-5-pyrazolones posses four tautomeric forms, those corresponding to HQ(Ph) were investigated using density functional theory. Docking of all HQ(Ph) tautomers on ICAM-1 protein was performed suggesting one keto-enol form favored to act in biological environment.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Caruso F,Pettinari C,Marchetti F,Rossi M,Opazo C,Kumar S,Balwani S,Ghosh Bdoi
10.1016/j.bmc.2009.07.064subject
Has Abstractpub_date
2009-09-01 00:00:00pages
6166-72issue
17eissn
0968-0896issn
1464-3391pii
S0968-0896(09)00720-2journal_volume
17pub_type
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