Synthesis and characterization of Δlac-acetogenins that potently inhibit mitochondrial complex I
摘要:
Four Dlac-acetogenins have been prepared and characterized as inhibitors of the mitochondrial respiratory chain, to define the effects of unsaturation within the alkyl substituents. In keeping with earlier reports, the presence of acetylenic functionalities within the alkyl substituents slightly diminished their potency of inhibition of NADH oxidase activity, which measures the overall transfer of electrons from NADH to oxygen through mitochondrial complexes I, III, and IV. In contrast, both of the acetylenic Dlac-acetogenins were far more active in a NADH-ubiquinone Q(1) oxidoreductase assay that measures complex I function per se. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis and characterization of Δlac-acetogenins that potently inhibit mitochondrial complex I
摘要:
Four Dlac-acetogenins have been prepared and characterized as inhibitors of the mitochondrial respiratory chain, to define the effects of unsaturation within the alkyl substituents. In keeping with earlier reports, the presence of acetylenic functionalities within the alkyl substituents slightly diminished their potency of inhibition of NADH oxidase activity, which measures the overall transfer of electrons from NADH to oxygen through mitochondrial complexes I, III, and IV. In contrast, both of the acetylenic Dlac-acetogenins were far more active in a NADH-ubiquinone Q(1) oxidoreductase assay that measures complex I function per se. (C) 2008 Elsevier Ltd. All rights reserved.