Evidence map›Paper›PMID 40818965›Full record

ArticleJournal of cannabis research2025

Neolignans isolated from industrial hemp (Cannabis sativa L.) roots have cytotoxic effects on cancer cells.

Korey J Brownstein, Grace E Nieukirk, Jackson Edwards, Maria Thomas, Thu Hien Nguyen, Pedro A de Alarcón, Karl E Vermillion, Manu Gnanamony

Abstract read
In one paragraph

Article in Journal of cannabis research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Korey J BrownsteinUSDA, ARS, NCAUR, Functional Foods Research Unit, Peoria, IL, 61604, USA. korey.brownstein@usda.gov.
Grace E NieukirkU.S. Department of Energy, Oak Ridge Institute for Science and Education (ORISE) appointment, Oak Ridge, USA.
Jackson EdwardsU.S. Department of Energy, Oak Ridge Institute for Science and Education (ORISE) appointment, Oak Ridge, USA.
Maria ThomasDepartment of Pediatrics, University of Illinois College of Medicine Peoria, One Illini Drive, Peoria, IL, 61605, USA.
Thu Hien NguyenDepartment of Pediatrics, University of Illinois College of Medicine Peoria, One Illini Drive, Peoria, IL, 61605, USA.
Pedro A de AlarcónDepartment of Pediatrics, University of Illinois College of Medicine Peoria, One Illini Drive, Peoria, IL, 61605, USA.
Karl E VermillionUSDA, ARS, NCAUR, Functional Foods Research Unit, Peoria, IL, 61604, USA.
Manu GnanamonyDepartment of Pediatrics, University of Illinois College of Medicine Peoria, One Illini Drive, Peoria, IL, 61605, USA. manug@uic.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe 2018 Farm Bill states that cultivars of Cannabis sativa 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.

methodsInitial 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. RESULTS AND DISCUSSION: 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's 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.

Indexed as

Cannabis sativaIndustrial hempNeolignanPediatric cancerRoot

Identifiers

PMID40818965
PMCPMC12357354

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.