| Literature DB >> 21967146 |
Paul Klausmeyer1, Suzanne M Shipley, Karina M Zuck, Thomas G McCloud.
Abstract
Bioactivity-guided fractionation of an extract of Burkholderia thailandensis led to the isolation and identification of a new cytotoxic depsipeptide and its dimer. Both compounds potently inhibited the function of histone deacetylases 1 and 4. The monomer, spiruchostatin C (2), was tested side by side with the clinical depsipeptide FK228 (1, Istodax, romidepsin) in a murine hollow fiber assay consisting of 12 implanted tumor cell lines. Spiruchostatin C (2) showed good activity toward LOX IMVI melanoma cells and NCI-H522 non small cell lung cancer cells. Overall, however, FK228 (1) showed a superior in vivo antitumor profile in comparison to the new compound.Entities:
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Year: 2011 PMID: 21967146 PMCID: PMC3204006 DOI: 10.1021/np200532d
Source DB: PubMed Journal: J Nat Prod ISSN: 0163-3864 Impact factor: 4.050