Duveau DY, Arce PM, Schoenfeld RA, Raghav N, Cortopassi GA, Hecht SM. Synthesis and characterization of mitoQ and idebenone analogues as mediators of oxygen consumption in mitochondria.
Bioorg Med Chem 2010;
18:6429-41. [PMID:
20691600 DOI:
10.1016/j.bmc.2010.06.104]
[Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 06/29/2010] [Accepted: 06/30/2010] [Indexed: 12/28/2022]
Abstract
Analogues of mitoQ and idebenone were synthesized to define the structural elements that support oxygen consumption in the mitochondrial respiratory chain. Eight analogues were prepared and fully characterized, then evaluated for their ability to support oxygen consumption in the mitochondrial respiratory chain. While oxygen consumption was strongly inhibited by mitoQ analogues 2-4 in a chain length-dependent manner, modification of idebenone by replacement of the quinone methoxy groups by methyl groups (analogues 6-8) reduced, but did not eliminate, oxygen consumption. Idebenone analogues 6-8 also displayed significant cytoprotective properties toward cultured mammalian cells in which glutathione had been depleted by treatment with diethyl maleate.
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