Abstract
A series of novel ferrocene-pyrazole derivatives containing nitric oxide donors as COX-2 inhibitors for cancer therapy were designed, synthesized and biologically evaluated. Among them, compound 7l displayed the most potent inhibitory against COX-2 (IC50 = 0.82 μM) and antiproliferative activities against Hela cells (IC50 = 0.34 μM) compared with Celecoxib (IC50 = 0.38 and 7.91 μM). The further mechanistic studies revealed that 7l could induce apoptosis of Hela cells by mitochondrial depolarization and the antiproliferative activities of 7l were positively correlated with the levels of intracellular NO release in Hela cells. Most notably, 7l could dramatically suppress tumor growth in Hela cells xenografted mouse model. In summary, compound 7l may be promising candidates for cancer therapy.
Keywords:
Anticancer; COX-2 inhibitor; Ferrocene; NO-Releasing; Pyrazole.
Copyright © 2018 Elsevier Masson SAS. All rights reserved.
MeSH terms
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Animals
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Antineoplastic Agents / chemical synthesis
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Antineoplastic Agents / chemistry
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Antineoplastic Agents / pharmacology*
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Apoptosis / drug effects
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Cell Proliferation / drug effects
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Cells, Cultured
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Cyclooxygenase 2 / metabolism*
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Cyclooxygenase 2 Inhibitors / chemical synthesis
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Cyclooxygenase 2 Inhibitors / chemistry
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Cyclooxygenase 2 Inhibitors / pharmacology*
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Dose-Response Relationship, Drug
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Drug Design*
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Drug Screening Assays, Antitumor
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Female
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Ferrous Compounds / chemistry
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Ferrous Compounds / pharmacology*
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Humans
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Membrane Potential, Mitochondrial / drug effects
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Metallocenes / chemistry
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Metallocenes / pharmacology*
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Mice
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Mice, Inbred BALB C
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Mice, Nude
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Molecular Structure
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Neoplasms, Experimental / drug therapy*
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Neoplasms, Experimental / metabolism
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Neoplasms, Experimental / pathology
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Nitric Oxide / metabolism
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Nitric Oxide Donors / chemistry
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Nitric Oxide Donors / pharmacology*
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Pyrazoles / chemistry
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Pyrazoles / pharmacology*
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Structure-Activity Relationship
Substances
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Antineoplastic Agents
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Cyclooxygenase 2 Inhibitors
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Ferrous Compounds
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Metallocenes
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Nitric Oxide Donors
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Pyrazoles
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Nitric Oxide
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pyrazole
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Cyclooxygenase 2
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ferrocene