Abstract:
:The Mediterranean tunicate Stolonica socialis contains a new class of powerful cytotoxic acetogenins, generically named stolonoxides. In this paper, which also details the isolation and chemical characterization of a minor component (3a) of the tunicate extract, we report the potent inhibitory activity (IC(50) < 1 microM) of stolonoxides (1a and 3a) on mitochondrial electron transfer. The compounds affect specifically the functionality of complex II (succinate:ubiquinone oxidoreductase) and complex III (ubiquinol:cytochrome C oxidoreductase) in mammalian cells, thereby causing a rapid collapse of the whole energetic metabolism. This result, which differs from the properties of similar known products (e.g., 6), reflects the molecular features of stolonoxides.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Fontana A,Cimino G,Gavagnin M,González MC,Estornell Edoi
10.1021/jm0011373keywords:
subject
Has Abstractpub_date
2001-07-05 00:00:00pages
2362-5issue
14eissn
0022-2623issn
1520-4804pii
jm0011373journal_volume
44pub_type
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