Antimicrobial Activity of Drimanic Sesquiterpene Compounds from against Multiresistant Microorganisms.

In this work, a group of ten sesquiterpene drimanes, including polygodial (), isopolygodial (), and drimenol () obtained from the bark of F. and seven synthetic derivatives, were tested in vitro against a unique panel of bacteria, fungi, and oomycetes with standardized procedures against bacterial strains , , , and The minimum inhibitory concentrations and bactericidal activities were evaluated using standardized protocols. Polygodial () was the most active compound, with MBC 8 μg/mL and MIC 16 μg/mL in ; MBC 16 μg/mL and MIC 32 μg/mL in ; MBC 64 μg/mL and MIC 64 μg/mL in ; and MBC 8 μg/mL and MIC 16 μg/mL and MBC 32 μg/mL and MIC 64 μg/mL in , respectively.

Cytotoxic Activity, Topoisomerase I Inhibition and In Silico Studies of New Sesquiterpene-aryl Ester Derivatives of (-) Drimenol.

In this study, we aimed to evaluate two sets of sesquiterpene-aryl derivatives linked by an ester bond, their cytotoxic activities, and their capacity to activate caspases 3/7 and inhibit human topoisomerase I (TOP1). A total of 13 compounds were synthesized from the natural sesquiterpene (-)-drimenol and their cytotoxic activity was evaluated in vitro against three cancer cell lines: PC-3 (prostate cancer), HT-29 (colon cancer), MCF-7 (breast cancer), and an immortalized non-tumoral cell line (MCF-10). From the results, it was observed that was the most promising compound due to its cytotoxic effect on three cancer cell lines and its selectivity, was 100-fold more selective than 5-FU in MCF-7 and 20-fold in PC-3.

Cancer and brassinosteroids: Mechanisms of action, SAR and future perspectives.

Brassinosteroids are plant hormones whose main function is to stimulate plant growth. However, they have been studied for their biological applications in humans. Brassinosteroid compounds have displayed an important role in the study of cancer pathology and show potential for developing novel anticancer drugs.