Abstract |
An examination of an organic extract of the cyanobacterium Lyngbya majuscula, collected from Wasini Island off the southern Kenyan coast, led to the isolation of the known cyclic depsipeptide antanapeptin A (1), recently isolated from a Madagascan collection of L. majuscula, and a new bioactive cyclic depsipeptide, homodolastatin 16 (2). The structures of these two compounds were determined from NMR and mass spectrometry data. Homodolastatin 16, a higher homologue of the potential anticancer agent dolastatin 16, exhibited moderate activity against oesophageal and cervical cancer cell lines.
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Authors | Michael T Davies-Coleman, Thomas M Dzeha, Christopher A Gray, Sonja Hess, Lewis K Pannell, Denver T Hendricks, Catherine E Arendse |
Journal | Journal of natural products
(J Nat Prod)
Vol. 66
Issue 5
Pg. 712-5
(May 2003)
ISSN: 0163-3864 [Print] United States |
PMID | 12762816
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.)
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Chemical References |
- Antineoplastic Agents
- Depsipeptides
- Peptides, Cyclic
- dolastatin 16
- homodolastatin 16
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Topics |
- Antineoplastic Agents
(chemistry, isolation & purification, pharmacology)
- Cyanobacteria
(chemistry)
- Depsipeptides
- Drug Screening Assays, Antitumor
- Esophageal Neoplasms
- Female
- Humans
- Inhibitory Concentration 50
- Kenya
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Peptides, Cyclic
(chemistry, isolation & purification, pharmacology)
- Tumor Cells, Cultured
(drug effects)
- Uterine Cervical Neoplasms
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