Ontology highlight
ABSTRACT:
SUBMITTER: Kretschmer N
PROVIDER: S-EPMC3361261 | biostudies-literature | 2012 May
REPOSITORIES: biostudies-literature
Kretschmer Nadine N Rinner Beate B Deutsch Alexander J A AJ Lohberger Birgit B Knausz Heike H Kunert Olaf O Blunder Martina M Boechzelt Herbert H Schaider Helmut H Bauer Rudolf R
Journal of natural products 20120424 5
Activity-guided fractionation of a petroleum ether-soluble extract of the roots of Onosma paniculata, which has been shown to affect the cell cycle and to induce apoptosis in melanoma cells, led to the isolation of several shikonin derivatives, namely, β-hydroxyisovalerylshikonin (1), acetylshikonin (2), dimethylacrylshikonin (3), and a mixture of α-methylbutyrylshikonin and isovalerylshikonin (4+5). All compounds exhibited strong cytotoxicity against eight cancer cell lines and MRC-5 lung fibro ...[more]