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Mery DE, Compadre AJ, Ordóñez PE, Selvik EJ, Morocho V, Contreras J, Malagón O, Jones DE, Breen PJ, Balick MJ, Gaudio FG, Guzman ML, Compadre CM. Analysis of Plant-Plant Interactions Reveals the Presence of Potent Antileukemic Compounds. Molecules 2022; 27:2928. [PMID: 35566279 PMCID: PMC9105371 DOI: 10.3390/molecules27092928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/14/2022] [Accepted: 04/26/2022] [Indexed: 12/24/2022] Open
Abstract
A method to identify anticancer compounds in plants was proposed based on the hypothesis that these compounds are primarily present in plants to provide them with an ecological advantage over neighboring plants and other competitors. According to this view, identifying plants that contain compounds that inhibit or interfere with the development of other plant species may facilitate the discovery of novel anticancer agents. The method was developed and tested using Magnolia grandiflora, Gynoxys verrucosa, Picradeniopsis oppositifolia, and Hedyosmum racemosum, which are plant species known to possess compounds with cytotoxic activities. Plant extracts were screened for growth inhibitory activity, and then a thin-layer chromatography bioautography assay was conducted. This located the major antileukemic compounds 1, 2, 4, and 5 in the extracts. Once the active compounds were located, they were extracted and purified, and their structures were determined. The growth inhibitory activity of the purified compounds showed a significant correlation with their antileukemic activity. The proposed approach is rapid, inexpensive, and can easily be implemented in areas of the world with high biodiversity but with less access to advanced facilities and biological assays.
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Affiliation(s)
- David E. Mery
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (D.E.M.); (A.J.C.); (E.J.S.); (D.E.J.); (P.J.B.)
- SeqRX, LLC., Little Rock, AR 72205, USA
| | - Amanda J. Compadre
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (D.E.M.); (A.J.C.); (E.J.S.); (D.E.J.); (P.J.B.)
| | - Paola E. Ordóñez
- School of Chemical Sciences and Engineering, Yachay Tech University, Urcuquí 100119, Ecuador;
| | - Edward J. Selvik
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (D.E.M.); (A.J.C.); (E.J.S.); (D.E.J.); (P.J.B.)
| | - Vladimir Morocho
- Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 110107, Ecuador; (V.M.); (O.M.)
| | - Jorge Contreras
- Department of Medicine, Division of Hematology/Oncology, Weill Cornell Medical College, New York, NY 10021, USA;
| | - Omar Malagón
- Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 110107, Ecuador; (V.M.); (O.M.)
| | - Darin E. Jones
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (D.E.M.); (A.J.C.); (E.J.S.); (D.E.J.); (P.J.B.)
| | - Philip J. Breen
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (D.E.M.); (A.J.C.); (E.J.S.); (D.E.J.); (P.J.B.)
| | - Michael J. Balick
- Institute for Economic Botany, New York Botanical Garden, New York, NY 10458, USA;
| | - Flavio G. Gaudio
- Department of Emergency Medicine, New York Presbyterian-Weill Cornell Medicine, New York, NY 10065, USA;
| | - Monica L. Guzman
- Department of Medicine, Division of Hematology/Oncology, Weill Cornell Medical College, New York, NY 10021, USA;
| | - Cesar M. Compadre
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (D.E.M.); (A.J.C.); (E.J.S.); (D.E.J.); (P.J.B.)
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