- alkyl derivatives,
- depsidone,
- lichens,
- protocetraric acid,
- toxicity
- tumor cells ...More
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Abstract
The protocetraric acid (1) is a depsidone produced by countless species of lichens and has shown potential biological activity. In this work, we evaluated through the sulforhodamine B (SRB) assay the cytotoxic activity of seven alkyl ether derivatives of protocetraric acid (9´-O-alkyl protocetraric acid) against the following cell lines: HT-29 (colon carcinoma), 786-0 (kidney carcinoma), MCF7 (breast carcinoma), HEP2 (laryngeal carcinoma), PC-03 (prostate carcinoma), B16F10 (murine melanoma), UACC-62 (human melanoma), and NIH/3T3 (mouse embryonic fibroblast). Most compounds were cytotoxic to tested cells, with GI50 < 100.0 μM, and did not show selectivity over them.
