RT info:eu-repo/semantics/article T1 Synthesis of Trichodermin Derivatives and Their Antimicrobial and Cytotoxic Activities A1 Barúa Chamorro, Javier E. A1 de la Cruz Moreno, Mercedes A1 de Pedro, Nuria A1 Cautain, Bastien A1 Hermosa, Rosa A1 Cardoza, Rosa E. A1 Gutiérrez Martín, Santiago A1 Monte Vázquez, Enrique A1 Vicente Pérez, María Francisca A1 Collado, Isidro G. A2 Microbiologia K1 Biología K1 Bioquímica K1 Trichothecene K1 Sesquiterpenes K1 Tri genes K1 Synthesis K1 Antimicrobial K1 Cytotoxic bioactivity AB [EN] Trichothecene mycotoxins are recognized as highly bioactive compounds that can be used in the design of new useful bioactive molecules. In Trichoderma brevicompactum, the first specific step in trichothecene biosynthesis is carried out by a terpene cyclase, trichodiene synthase, that catalyzes the conversion of farnesyl diphosphate to trichodiene and is encoded by the tri5 gene. Overexpression of tri5 resulted in increased levels of trichodermin, a trichothecene-type toxin, which is a valuable tool in preparing new molecules with a trichothecene skeleton. In this work, we developed the hemisynthesis of trichodermin and trichodermol derivatives in order to evaluate their antimicrobial and cytotoxic activities and to study the chemo-modulation of their bioactivity. Some derivatives with a short chain at the C-4 position displayed selective antimicrobial activity against Candida albicans and they showed MIC values similar to those displayed by trichodermin. It is important to highlight the cytotoxic selectivity observed for compounds 9, 13, and 15, which presented average IC50 values of 2 µg/mL and were cytotoxic against tumorigenic cell line MCF-7 (breast carcinoma) and not against Fa2N4 (non-tumoral immortalized human hepatocytes) PB MDPI LK https://hdl.handle.net/10612/19102 UL https://hdl.handle.net/10612/19102 NO Barúa, J. E., De la Cruz, M., De Pedro, N., Cautain, B., Hermosa, R., Cardoza, R. E., Gutiérrez, S., Monte, E., Vicente, F., & Collado, I. G. (2019). Synthesis of trichodermin derivatives and their antimicrobial and cytotoxic activities. Molecules, 24(20). https://doi.org/10.3390/MOLECULES24203811 DS BULERIA. Repositorio Institucional de la Universidad de León RD 19-may-2024