RT info:eu-repo/semantics/article T1 Dehydrohispanolone derivatives attenuate the Inflammatory response through the modulation of Inflammasome activation A1 Estévez Braun, Ana María A1 González-Cofrade, Laura A1 Oramas-Royo, Sandra M. A1 Cuadrado, Irene A1 Amesty Arrieta, Ángel Ernesto A1 Hortelano, Sonsoles A1 Heras, Beatriz de las A2 Química Orgánica A2 Grupo Quibionat; Instituto de Bio-Orgánica AB The NLRP3 inflammasome plays a critical role in inflammation-mediated human diseases and represents a promising drug target for novel anti-inflammatory therapies. Hispanolone is a labdane diterpenoid isolated from the aerial parts of Ballota species. This diterpenoid and some derivatives have demonstrated anti-inflammatory effects in classical inflammatory pathways. In the present study, a series of dehydrohispanolone derivatives (1-19) was synthesized and their anti-inflammatory activities toward NLRP3 inflammasome activation were evaluated. The structures of the dehydrohispanolone analogues produced were elucidated by NMR spectroscopy and mass spectrometry. Four derivatives significantly inhibited IL-1β secretion, with 15 and 18 being the most active (IC50 = 18.7 and 13.8 µM, respectively). Analysis of IL-1β and caspase-1 expression revealed that the new diterpenoids 15 and 18 are selective inhibitors of the NLRP3 inflammasome, reinforcing the previously demonstrated anti-inflammatory properties of hispanolone derivatives. YR 2020 FD 2020 LK http://riull.ull.es/xmlui/handle/915/40673 UL http://riull.ull.es/xmlui/handle/915/40673 LA en DS Repositorio institucional de la Universidad de La Laguna RD 27-abr-2025