<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-06-29T02:33:32Z</responseDate><request verb="GetRecord" identifier="oai:docta.ucm.es:20.500.14352/118891" metadataPrefix="qdc">https://docta.ucm.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:docta.ucm.es:20.500.14352/118891</identifier><datestamp>2025-05-23T17:44:49Z</datestamp><setSpec>com_20.500.14352_14</setSpec><setSpec>col_20.500.14352_15</setSpec></header><metadata><qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
   <dc:title>Dehydrohispanolone derivatives attenuate the inflammatory response through the modulation of inflammasome activation</dc:title>
   <dc:creator>Heras Polo, Beatriz De Las</dc:creator>
   <dc:creator>González Cofrade, Laura</dc:creator>
   <dc:creator>Cuadrado Berrocal, Irene</dc:creator>
   <dc:creator>Oramas-Royo, Sandra </dc:creator>
   <dc:creator>Amesty, Angel </dc:creator>
   <dc:creator>Hortelano, Sonsoles </dc:creator>
   <dc:creator>Estevez-Braun, Ana </dc:creator>
   <dcterms:abstract>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</dcterms:abstract>
   <dcterms:dateAccepted>2025-03-21T11:35:37Z</dcterms:dateAccepted>
   <dcterms:available>2025-03-21T11:35:37Z</dcterms:available>
   <dcterms:created>2025-03-21T11:35:37Z</dcterms:created>
   <dcterms:issued>2020</dcterms:issued>
   <dc:type>journal article</dc:type>
   <dc:identifier>https://hdl.handle.net/20.500.14352/118891</dc:identifier>
   <dc:identifier>XXXX-XXXX</dc:identifier>
   <dc:identifier>10.1021/acs.jnatprod.0c00200</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>RTI2018-094356-BC21</dc:relation>
   <dc:relation>Pro ID 2017010071</dc:relation>
   <dc:relation>PI17/00012</dc:relation>
   <dc:relation>González-Cofrade L, Oramas-Royo S, Cuadrado I, Amesty Á, Hortelano S, Estevez-Braun A, et al. Dehydrohispanolone Derivatives Attenuate the Inflammatory Response through the Modulation of Inflammasome Activation. J Nat Prod 2020;83:2155–64. https://doi.org/10.1021/acs.jnatprod.0c00200.</dc:relation>
   <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
   <dc:rights>open access</dc:rights>
   <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 International</dc:rights>
   <dc:publisher>ACS Publications</dc:publisher>
</qdc:qualifieddc></metadata></record></GetRecord></OAI-PMH>