{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T15:54:10Z","timestamp":1791474850547,"version":"4.3.4"},"reference-count":10,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,8,16]],"date-time":"2025-08-16T00:00:00Z","timestamp":1755302400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,8,16]],"date-time":"2025-08-16T00:00:00Z","timestamp":1755302400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100006229","name":"Oak Ridge Institute for Science and Education","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100006229","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Owens-OSF Professorship, Department of Pediatrics, University of Illinois College of Medicine Peoria"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["J Cannabis Res"],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>The 2018 Farm Bill states that cultivars of <jats:italic>Cannabis sativa<\/jats:italic> L. (industrial hemp) are legal for industrial use if total tetrahydrocannabinol (THC) concentrations are less than 0.30%. Due to this legislation, hemp cultivars with low total THC have found a wide range of uses, from animal feed to paper production. Although cannabinoids are the most widely studied compounds in hemp, hemp produces numerous other compound classes as well, and these phytochemicals may have uses in the functional food and pharmaceutical industry.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>Initial liquid chromatography profiling of hemp root samples revealed a group of uncharacterized peaks, and these peaks were tentatively identified as neolignans by Oribitrap ID-X high resolution mass spectrometer. To further elucidate the structure of these neolignans, we used techniques in liquid-liquid extraction, as well as flash chromatography to isolate them in preparation for NMR analysis. We then tested their inhibitory concentration 50 (IC50) in a variety of cancer cell lines.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results and discussion<\/jats:title>\n            <jats:p>Four neolignans were isolated from hemp roots and each differed in their molecular weight by 30 daltons. Two of the compounds were identified as dadahols A and B. We tested fractions of various purities containing neolignans against neuroblastoma cell lines CHLA15 and LAN5, hepatoblastoma cell line Hep3B, and Hodgkin\u2019s lymphoma cell line L428. We found that semi-pure fractions containing dadahol A and\/or dadahol B had the highest cytotoxic activity. We then tested pure dadahol A and dadahol B, and this revealed dadahol A exhibited the lowest IC50 values in all the cell lines.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/s42238-025-00316-5","type":"journal-article","created":{"date-parts":[[2025,8,16]],"date-time":"2025-08-16T06:03:44Z","timestamp":1755324224000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Neolignans isolated from industrial hemp (Cannabis sativa L.) roots have cytotoxic effects on cancer cells"],"prefix":"10.1186","volume":"7","author":[{"given":"Korey J.","family":"Brownstein","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grace E.","family":"Nieukirk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jackson","family":"Edwards","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Thomas","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thu Hien","family":"Nguyen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro A.","family":"de Alarc\u00f3n","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karl E.","family":"Vermillion","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manu","family":"Gnanamony","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,8,16]]},"reference":[{"key":"316_CR1","doi-asserted-by":"publisher","first-page":"918","DOI":"10.1038\/nbt.2377","volume":"30","author":"MC Chambers","year":"2012","unstructured":"Chambers MC, Maclean B, Burke R, Amodei D, Ruderman DL, Neumann S, Gatto L, Fischer B, Pratt B, Egertson J, Hoff K. A cross-platform toolkit for mass spectrometry and proteomics. Nat Biotechnol. 2012;30:918\u201320.","journal-title":"Nat Biotechnol"},{"key":"316_CR2","doi-asserted-by":"publisher","first-page":"3068","DOI":"10.3390\/cancers14133068","volume":"14","author":"AM D\u2019Souza","year":"2022","unstructured":"D\u2019Souza AM, Gnanamony M, Thomas M, Hanley P, Kanabar D, de Alarcon P, Muth A, Timchenko N. Second generation small molecule inhibitors of Gankyrin for the treatment of pediatric liver cancer. Cancers. 2022;14:3068.","journal-title":"Cancers"},{"key":"316_CR3","doi-asserted-by":"publisher","first-page":"299","DOI":"10.1038\/s41592-019-0344-8","volume":"16","author":"K D\u00fchrkop","year":"2019","unstructured":"D\u00fchrkop K, Fleischauer M, Ludwig M, Aksenov AA, Melnik AV, Meusel M, Dorrestein PC, Rousu J, B\u00f6cker. SIRIUS 4: a rapid tool for turning tandem mass spectra into metabolite structure information. 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