{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T22:06:55Z","timestamp":1789510015301,"version":"build-2803163510"},"reference-count":26,"publisher":"American Society for Microbiology","issue":"1","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Antimicrob Agents Chemother"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            As a continuation of our earlier study on the\n            <jats:italic>in vitro<\/jats:italic>\n            antiprotozoal activity of 40 natural sesquiterpene lactones (STLs), we extended the set of tested compounds from our laboratories to 59. On the basis of this extended data set, further enriched by literature data for 10 compounds tested under the same conditions, our quantitative structure-activity relationship (QSAR) analyses for activity against\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">T. brucei rhodesiense<\/jats:named-content>\n            (etiologic agent of human African trypanosomiasis, or sleeping sickness) were continued, and the QSAR model thus obtained with 69 structures was used to predict the activity of a virtual library of 1,750 STL structures. As a major result from these calculations, furanoheliangolide-type compounds, a subclass of STLs hitherto untested against\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">T. brucei rhodesiense<\/jats:named-content>\n            , were predicted to have an exceptionally high level of\n            <jats:italic>in vitro<\/jats:italic>\n            activity. Four representative compounds of this type, goyazensolide, 4,5-dihydro-2\u2032,3\u2032-epoxy-15-deoxygoyazensolide, budlein A, and 4,15-isoatriplicolide tiglate, were therefore tested. They displayed 50% inhibitory concentrations (IC\n            <jats:sub>50<\/jats:sub>\n            s) of 0.07, 0.20, 0.07, and 0.015 \u03bcM, respectively, so that the\n            <jats:italic>in silico<\/jats:italic>\n            prediction was experimentally confirmed. 4,15-Isoatriplicolide tiglate is the most potent STL against\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">T. b. rhodesiense<\/jats:named-content>\n            found. Furanoheliangolide STLs were thus identified as interesting leads against this parasite which deserve more detailed investigations.\n          <\/jats:p>","DOI":"10.1128\/aac.01263-13","type":"journal-article","created":{"date-parts":[[2013,10,29]],"date-time":"2013-10-29T03:36:25Z","timestamp":1383017785000},"page":"325-332","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":49,"title":["<i>In Silico<\/i>\n            Prediction and Experimental Evaluation of Furanoheliangolide Sesquiterpene Lactones as Potent Agents against Trypanosoma brucei rhodesiense"],"prefix":"10.1128","volume":"58","author":[{"given":"Thomas J.","family":"Schmidt","sequence":"first","affiliation":[{"name":"Institute of Pharmaceutical Biology and Phytochemistry, University of M\u00fcnster, M\u00fcnster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fernando B.","family":"Da Costa","sequence":"additional","affiliation":[{"name":"School of Pharmaceutical Sciences of Ribeir\u00e3o Preto, University of S\u00e3o Paulo, Ribeir\u00e3o Preto, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norberto P.","family":"Lopes","sequence":"additional","affiliation":[{"name":"School of Pharmaceutical Sciences of Ribeir\u00e3o Preto, University of S\u00e3o Paulo, Ribeir\u00e3o Preto, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcel","family":"Kaiser","sequence":"additional","affiliation":[{"name":"Swiss Tropical and Public Health Institute, Basel, Switzerland"},{"name":"University of Basel, Basel, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Reto","family":"Brun","sequence":"additional","affiliation":[{"name":"Swiss Tropical and Public Health Institute, Basel, Switzerland"},{"name":"University of Basel, Basel, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","volume-title":"First WHO report on neglected tropical diseases: working to overcome the global impact of neglected tropical diseases","author":"Crompton DWT","year":"2010","unstructured":"CromptonDWTPetersP (ed). 2010. First WHO report on neglected tropical diseases: working to overcome the global impact of neglected tropical diseases. Publication WHO\/HTM\/NTD\/2010.1. 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Naturstoffe als Inhibitoren c-Myb-abh\u00e4ngiger Transkriptionsprozesse. Dissertation. University of M\u00fcnster, M\u00fcnster, Germany."},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.phytochem.2011.01.025"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0031-9422(00)90815-X"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1515\/znc-2008-7-811"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0031-9422(00)89082-2"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0066-4103(08)60027-7"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1056-8719(00)00107-6"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jep.2010.08.059"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0166-1280(99)00360-7"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3838(200208)21:3<276::AID-QSAR276>3.0.CO;2-S"},{"key":"e_1_3_3_25_2","first-page":"577","article-title":"Toxic activities of sesquiterpene lactones\u2014structural and biochemical aspects","volume":"3","author":"Schmidt TJ","year":"1999","unstructured":"SchmidtTJ. 1999. Toxic activities of sesquiterpene lactones\u2014structural and biochemical aspects. Curr. Org. Chem. 3:577\u2013605.","journal-title":"Curr. Org. Chem."},{"key":"e_1_3_3_26_2","first-page":"309","volume-title":"Studies in natural products chemistry","author":"Schmidt TJ","year":"2006","unstructured":"SchmidtTJ. 2006. Structure-activity relationships of sesquiterpene lactones, p 309\u2013392. In Atta-ur-Rahman (ed), Studies in natural products chemistry, vol. 33. Elsevier, Amsterdam, The Netherlands."},{"key":"e_1_3_3_27_2","first-page":"9","article-title":"Quantitative structure-cytotoxicity relationships within a series of helenanolide type sesquiterpene lactones. (Helenanolide type sesquiterpene lactones, IV.)","volume":"9","author":"Schmidt TJ","year":"1999","unstructured":"SchmidtTJ. 1999. Quantitative structure-cytotoxicity relationships within a series of helenanolide type sesquiterpene lactones. (Helenanolide type sesquiterpene lactones, IV.) Pharm. Pharmacol. 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