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Chen S, Li X, Wu Q, Li Y, Puig M, Moulin F, Choudhuri S, Gingrich J, Guo L. Investigation of cannabidiol-induced cytotoxicity in human hepatic cells. Toxicology 2024; 506:153884. [PMID: 39004336 DOI: 10.1016/j.tox.2024.153884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/23/2024] [Accepted: 07/08/2024] [Indexed: 07/16/2024]
Abstract
Cannabidiol (CBD) is one of the primary cannabinoids present in extracts of the plant Cannabis sativa L. A CBD-based drug, Epidiolex, has been approved by the U.S. FDA for the treatment of seizures in childhood-onset epileptic disorders. Although CBD-associated liver toxicity has been reported in clinical studies, the underlying mechanisms remain unclear. In this study, we demonstrated that CBD causes cytotoxicity in primary human hepatocytes and hepatic HepG2 cells. A 24-h CBD treatment induced cell cycle disturbances, cellular apoptosis, and endoplasmic reticulum (ER) stress in HepG2 cells. A potent ER stress inhibitor, 4-phenylbutyrate, markedly attenuated CBD-induced apoptosis and cell death. Additionally, we investigated the role of cytochrome P450 (CYP)-mediated metabolism in CBD-induced cytotoxicity using HepG2 cell lines engineered to express 14 individual CYPs. We identified CYP2C9, 2C19, 2D6, 2C18, and 3A5 as participants in CBD metabolism. Notably, cells overexpressing CYP2C9, 2C19, and 2C18 produced 7-hydroxy-CBD, while cells overexpressing CYP2C9, 2C19, 2D6, and 2C18 generated 7-carboxy-CBD. Furthermore, CBD-induced cytotoxicity was significantly attenuated in the cells expressing CYP2D6. Taken together, these data suggest that cell cycle disturbances, apoptosis, and ER stress are associated with CBD-induced cytotoxicity, and CYP2D6-mediated metabolism plays a critical role in decreasing the cytotoxicity of CBD.
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Affiliation(s)
- Si Chen
- Division of Biochemical Toxicology, National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), Jefferson, AR 72079, USA.
| | - Xilin Li
- Division of Genetic and Molecular Toxicology, NCTR, U.S. FDA, Jefferson, AR 72079, USA
| | - Qiangen Wu
- Division of Biochemical Toxicology, National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), Jefferson, AR 72079, USA
| | - Yuxi Li
- Division of Biochemical Toxicology, National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), Jefferson, AR 72079, USA
| | - Montserrat Puig
- Division of Biotechnology Review and Research III, Office of Biotechnology Products, Center for Drug Evaluation and Research, U.S. FDA, Silver Spring, MD 20993, USA
| | - Frederic Moulin
- Division of Hepatology and Nutrition, Office of New Drugs, Center for Drug Evaluation and Research, U.S. FDA, Silver Spring, MD 20993, USA
| | - Supratim Choudhuri
- Division of Food Ingredients, Office of Food Additive Safety, Center for Food Safety and Applied Nutrition, U.S. FDA, College Park, MD 20740, USA
| | - Jeremy Gingrich
- Division of Food Ingredients, Office of Food Additive Safety, Center for Food Safety and Applied Nutrition, U.S. FDA, College Park, MD 20740, USA
| | - Lei Guo
- Division of Biochemical Toxicology, National Center for Toxicological Research (NCTR), U.S. Food and Drug Administration (FDA), Jefferson, AR 72079, USA.
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2
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Carkaci-Salli N, Raup-Konsavage WM, Karelia D, Sun D, Jiang C, Lu J, Vrana KE. Cannabinoids as Potential Cancer Therapeutics: The Concentration Conundrum. Cannabis Cannabinoid Res 2024; 9:e1159-e1169. [PMID: 36944160 DOI: 10.1089/can.2022.0344] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
Background: Studies have reported that cannabinoids, in particular Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD), significantly reduce cancer cell viability in vitro. Unfortunately, treatment conditions vary significantly across reports. In particular, a majority of reports utilize conditions with reduced serum concentrations (0-3%) that may compromise the growth of the cells themselves, as well as the observed results. Objectives: This study was designed to test the hypothesis that, based on their known protein binding characteristics, cannabinoids would be less effective in the presence of fetal bovine serum (FBS). Moreover, we wished to determine if the treatments served to be cytotoxic or cytostatic under these conditions. Methods: Six cancer cell lines, representing two independent lines of three different types of cancer (glioblastoma, melanoma, and colorectal cancer [CRC]), were treated with 10 μM pure Δ9-THC, CBD, KM-233, and HU-331 for 48 h (in the presence or absence of FBS). Cell viability was measured with the MTT assay. Dose-response curves were then generated comparing the potencies of the four cannabinoids under the same conditions. Results: We found that serum-free medium alone produces cell cycle arrest for CRC cells and slows cell growth for the other cancer types. The antineoplastic effects of three of the four cannabinoids (Δ9-THC, CBD, and KM-233) increase when serum is omitted from the media. In addition, dose-response curves for these drugs demonstrated lower IC50 values for serum-free media compared with the media with 10% serum in all cell lines. The fourth compound, HU-331, was equally effective under both conditions. A further confound we observed is that omission of serum produces dramatic binding of Δ9-THC and CBD to plastic. Conclusions: Treatment of cancer cells in the absence of FBS appears to enhance the potency of cannabinoids. However, omission of FBS itself compromises cell growth and represents a less physiological condition. Given the knowledge that cannabinoids are 90-95% protein bound and have well-known affinities for plastic, it may be ill-advised to treat cells under conditions where the cells are not growing optimally and where known concentrations cannot be assumed (i.e., FBS-free conditions).
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Affiliation(s)
- Nurgul Carkaci-Salli
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | | | - Deepkamal Karelia
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Dongxiao Sun
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Cheng Jiang
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Junxuan Lu
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Kent E Vrana
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania, USA
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3
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Wroński A, Jarocka-Karpowicz I, Surażyński A, Gęgotek A, Zarkovic N, Skrzydlewska E. Modulation of Redox and Inflammatory Signaling in Human Skin Cells Using Phytocannabinoids Applied after UVA Irradiation: In Vitro Studies. Cells 2024; 13:965. [PMID: 38891097 PMCID: PMC11171479 DOI: 10.3390/cells13110965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/28/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024] Open
Abstract
UVA exposure disturbs the metabolism of skin cells, often inducing oxidative stress and inflammation. Therefore, there is a need for bioactive compounds that limit such consequences without causing undesirable side effects. The aim of this study was to analyse in vitro the effects of the phytocannabinoids cannabigerol (CBG) and cannabidiol (CBD), which differ in terms of biological effects. Furthermore, the combined use of both compounds (CBG+CBD) has been analysed in order to increase their effectiveness in human skin fibroblasts and keratinocytes protection against UVA-induced alternation. The results obtained indicate that the effects of CBG and CBD on the redox balance might indeed be enhanced when both phytocannabinoids are applied concurrently. Those effects include a reduction in NOX activity, ROS levels, and a modification of thioredoxin-dependent antioxidant systems. The reduction in the UVA-induced lipid peroxidation and protein modification has been confirmed through lower levels of 4-HNE-protein adducts and protein carbonyl groups as well as through the recovery of collagen expression. Modification of antioxidant signalling (Nrf2/HO-1) through the administration of CBG+CBD has been proven to be associated with reduced proinflammatory signalling (NFκB/TNFα). Differential metabolic responses of keratinocytes and fibroblasts to the effects of the UVA and phytocannabinoids have indicated possible beneficial protective and regenerative effects of the phytocannabinoids, suggesting their possible application for the purpose of limiting the harmful impact of the UVA on skin cells.
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Affiliation(s)
- Adam Wroński
- Dermatological Specialized Center “DERMAL” NZOZ in Białystok, Nowy Swiat 17/5, 15-453 Bialystok, Poland;
| | - Iwona Jarocka-Karpowicz
- Department of Analytical Chemistry, Medical University of Bialystok, A. Mickiewicza 2D, 15-222 Bialystok, Poland; (I.J.-K.); (A.G.)
| | - Arkadiusz Surażyński
- Department of Medicinal Chemistry, Medical University of Bialystok, Kilinskiego 1, 15-069 Bialystok, Poland;
| | - Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, A. Mickiewicza 2D, 15-222 Bialystok, Poland; (I.J.-K.); (A.G.)
| | - Neven Zarkovic
- Laboratory for Oxidative Stress, Rudjer Boskovic Institute, Bijenicka 54, HR-10000 Zagreb, Croatia;
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, A. Mickiewicza 2D, 15-222 Bialystok, Poland; (I.J.-K.); (A.G.)
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4
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Bęben D, Siwiela O, Szyjka A, Graczyk M, Rzepka D, Barg E, Moreira H. Phytocannabinoids CBD, CBG, and their Derivatives CBD-HQ and CBG-A Induced In Vitro Cytotoxicity in 2D and 3D Colon Cancer Cell Models. Curr Issues Mol Biol 2024; 46:3626-3639. [PMID: 38666957 PMCID: PMC11048930 DOI: 10.3390/cimb46040227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/11/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Phytocannabinoids, compounds found in Cannabis sativa L., are used in oncology and palliative care to reduce the adverse reactions of standard therapies. Cancer patients use formulations of Cannabis sativa L. to manage the anxiety, pain, and nausea associated with cancer treatment, and there is growing evidence that some of them may exhibit anticancer properties. In this study, we tested the anticancer potential of selected cannabinoids CBD (cannabidiol) and its quinone derivative CBD-HQ (cannabidiol hydroquinone), CBG (cannabigerol) and its acid derivative CBG-A (cannabigerolic acid), as well as a combination of CBD+CBG on the colon cancer cell line SW-620. The MTT assay was used to determine the cannabinoids' ability to induce colon cancer cell death. All cannabinoids were cytotoxic at the lowest concentration (3 μg/mL). The half maximal inhibitory concentration (IC50) ranged from 3.90 to 8.24 μg/mL, depending on the substance. Cytotoxicity was confirmed in a 3D spheroidal cell culture with calcein and propidium iodide staining. The amount of intracellular reactive oxygen species (ROS) was examined using a DCF-DA assay. CBG showed the lowest antioxidant activity of all the cannabinoids tested. The level of intracellular ROS decreased only by 0.7-18%. However, CBG-A induced the strongest reduction in ROS level by 31-39%. Our results suggest that cannabinoids represent an interesting research direction with great implementation potential. These preliminary results represent the beginning of research into the potential of these substances for anticancer treatment and underscore the potential for further research.
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Affiliation(s)
- Dorota Bęben
- Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wroclaw, Poland; (D.B.); (O.S.)
| | - Oliwia Siwiela
- Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wroclaw, Poland; (D.B.); (O.S.)
| | - Anna Szyjka
- Department of Basic Medical Sciences and Immunology, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wroclaw, Poland; (A.S.); (H.M.)
| | - Michał Graczyk
- Department of Palliative Care, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, 87-100 Torun, Poland;
| | | | - Ewa Barg
- Department of Basic Medical Sciences and Immunology, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wroclaw, Poland; (A.S.); (H.M.)
| | - Helena Moreira
- Department of Basic Medical Sciences and Immunology, Faculty of Pharmacy, Wroclaw Medical University, Borowska Street 211, 50-556 Wroclaw, Poland; (A.S.); (H.M.)
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5
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Luz-Veiga M, Azevedo-Silva J, Fernandes JC. Beyond Pain Relief: A Review on Cannabidiol Potential in Medical Therapies. Pharmaceuticals (Basel) 2023; 16:155. [PMID: 37259306 PMCID: PMC9958812 DOI: 10.3390/ph16020155] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 07/30/2023] Open
Abstract
The phytocannabinoid cannabidiol (CBD) is receiving increasing attention due to its pharmacological properties. Although CBD is extracted from Cannabis sativa, it lacks the psychoactive effects of Δ9-tetrahydrocannabinol (THC) and has become an attractive compound for pharmacological uses due to its anti-inflammatory, antioxidant, anticonvulsant, and anxiolytic potential. The molecular mechanisms involved in CBD's biological effects are not limited to its interaction with classical cannabinoid receptors, exerting anti-inflammatory or pain-relief effects. Several pieces of evidence demonstrate that CBD interacts with other receptors and cellular signaling cascades, which further support CBD's therapeutic potential beyond pain management. In this review, we take a closer look at the molecular mechanisms of CBD and its potential therapeutic application in the context of cancer, neurodegeneration, and autoimmune diseases.
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Affiliation(s)
- Mariana Luz-Veiga
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - João Azevedo-Silva
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
| | - João C. Fernandes
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, 4169-005 Porto, Portugal
- Amyris Bio Products Portugal, Unipessoal Lda, 4169-005 Porto, Portugal
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6
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Anceschi L, Codeluppi A, Brighenti V, Tassinari R, Taglioli V, Marchetti L, Roncati L, Alessandrini A, Corsi L, Pellati F. Chemical characterization of non-psychoactive Cannabis sativa L. extracts, in vitro antiproliferative activity and induction of apoptosis in chronic myelogenous leukaemia cancer cells. Phytother Res 2022; 36:914-927. [PMID: 35107862 PMCID: PMC9304126 DOI: 10.1002/ptr.7357] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/22/2021] [Accepted: 12/01/2021] [Indexed: 01/17/2023]
Abstract
In this study, extracts from non‐psychoactive Cannabis sativa L. varieties were characterized by means of ultra high‐performance liquid chromatography coupled with high‐resolution mass spectrometry (UHPLC‐HRMS) and their antiproliferative activity was assessed in vitro. The human chronic myelogenous leukaemia cell line K562 was chosen to investigate the mechanism of cell death. The effect on the cell cycle and cell death was analysed by flow cytometry. Proteins related to apoptosis were studied by western blotting. Mechanical properties of cells were assessed using the Micropipette Aspiration Technique (MAT). The results indicated that the cannabidiol (CBD)‐rich extract inhibited cell proliferation of K562 cell line in a dose‐dependent manner and induced apoptosis via caspase 3 and 7 activation. A significant decrease in the mitochondrial membrane potential was detected, together with the release of cytochrome c into the cytosol. The main apoptotic markers were not involved in the mechanism of cell death. The extract was also able to modify the mechanical properties of cells. Thus, this hemp extract and its pure component CBD deserve further investigation for a possible application against myeloproliferative diseases, also in association with other anticancer drugs.
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Affiliation(s)
- Lisa Anceschi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandro Codeluppi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Virginia Brighenti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Riccardo Tassinari
- National Laboratory of Molecular Biology and Stem Cell Bioengineering-Eldor Lab, National Institute of Biostructures and Biosystems (NIBB), Innovation Accelerator, CNR, Bologna, Italy
| | - Valentina Taglioli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Lucia Marchetti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Luca Roncati
- Institute of Pathology, University of Modena and Reggio Emilia, Modena, Italy
| | - Andrea Alessandrini
- Department of Physics, Informatics and Mathematics, University of Modena and Reggio Emilia, Modena, Italy.,National Research Council (CNR), CNR-Nanoscience Institute-S3, Modena, Italy.,Biostructures and Biosystems National Institute (INBB) Inter-University Consortium, Rome, Italy
| | - Lorenzo Corsi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Biostructures and Biosystems National Institute (INBB) Inter-University Consortium, Rome, Italy
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
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7
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Cannabinoquinones: Synthesis and Biological Profile. Biomolecules 2021; 11:biom11070991. [PMID: 34356614 PMCID: PMC8301883 DOI: 10.3390/biom11070991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 11/17/2022] Open
Abstract
Neutral cannabinoids are oxidatively unstable and are converted into quinone derivatives by atmospheric- and/or chemical oxidative dearomatization. The study of cannabinoquinones has long been plagued by their lability toward additional oxidative degradation, but full substitution of the quinone ring, as well as the introduction of steric hindrance on the alkyl substituent, have provided sufficient stability for a systematic investigation of their bioactivity and for further clinical development. These studies culminated in the discovery of the aminocannabinoquinone VCE-004.8 (5), a compound under phase 2 clinical development with orphan drug status by EMA and FDA for the management of scleroderma. The synthesis and rich chemistry of these compounds will be described, summarizing their biological profile and clinical potential.
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8
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Trac J, Keck JM, Deweese JE. Cannabidiol oxidation product HU-331 is a potential anticancer cannabinoid-quinone: a narrative review. J Cannabis Res 2021; 3:11. [PMID: 33892826 PMCID: PMC8067350 DOI: 10.1186/s42238-021-00067-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Cannabidiol and related cannabinoids are under exploration for the treatment of a number of disease states. The cannabinoid-quinone HU-331 has been studied as a potential anticancer therapeutic. Previous studies provide evidence that HU-331 displays anticancer activity without some of the known adverse events associated with traditional anticancer agents. In this brief review, we will explore the literature related to the activity of HU-331 in purified systems, cancer cell lines, and animal models. For example, HU-331 displays inhibitory activity against human topoisomerase IIα, a known anticancer drug target. Further, in multiple cell model systems, the IC50 value for HU-331 was less than 10 μM. In addition, mouse model systems demonstrate the ability of HU-331 to shrink tumors without causing cardiotoxicity. In addition, we will briefly review the activity of some key analogs and derivatives of HU-331 for various disease states. Taken together, the published studies support further exploration of HU-331 for the treatment of cancer and possibly other disease states.
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Affiliation(s)
- Judy Trac
- Department of Pharmaceutical Sciences, Lipscomb University College of Pharmacy and Health Sciences, One University Park Drive, Nashville, TN, 37204-3951, USA
| | - J Myles Keck
- Department of Pharmaceutical Sciences, Lipscomb University College of Pharmacy and Health Sciences, One University Park Drive, Nashville, TN, 37204-3951, USA
| | - Joseph E Deweese
- Department of Pharmaceutical Sciences, Lipscomb University College of Pharmacy and Health Sciences, One University Park Drive, Nashville, TN, 37204-3951, USA. .,Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, 37232-0146, USA.
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9
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Vacek J, Vostalova J, Papouskova B, Skarupova D, Kos M, Kabelac M, Storch J. Antioxidant function of phytocannabinoids: Molecular basis of their stability and cytoprotective properties under UV-irradiation. Free Radic Biol Med 2021; 164:258-270. [PMID: 33453360 DOI: 10.1016/j.freeradbiomed.2021.01.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/10/2020] [Accepted: 01/06/2021] [Indexed: 01/14/2023]
Abstract
In this contribution, a comprehensive study of the redox transformation, electronic structure, stability and photoprotective properties of phytocannabinoids is presented. The non-psychotropic cannabidiol (CBD), cannabigerol (CBG), cannabinol (CBN), cannabichromene (CBC), and psychotropic tetrahydrocannabinol (THC) isomers and iso-THC were included in the study. The results show that under aqueous ambient conditions at pH 7.4, non-psychotropic cannabinoids are slight or moderate electron-donors and they are relatively stable, in the following order: CBD > CBG ≥ CBN > CBC. In contrast, psychotropic Δ9-THC degrades approximately one order of magnitude faster than CBD. The degradation (oxidation) is associated with the transformation of OH groups and changes in the double-bond system of the investigated molecules. The satisfactory stability of cannabinoids is associated with the fact that their OH groups are fully protonated at pH 7.4 (pKa is ≥ 9). The instability of CBN and CBC was accelerated after exposure to UVA radiation, with CBD (or CBG) being stable for up to 24 h. To support their topical applications, an in vitro dermatological comparative study of cytotoxic, phototoxic and UVA or UVB photoprotective effects using normal human dermal fibroblasts (NHDF) and keratinocytes (HaCaT) was done. NHDF are approx. twice as sensitive to the cannabinoids' toxicity as HaCaT. Specifically, toxicity IC50 values for CBD after 24 h of incubation are 7.1 and 12.8 μM for NHDF and HaCaT, respectively. None of the studied cannabinoids were phototoxic. Extensive testing has shown that CBD is the most effective protectant against UVA radiation of the studied cannabinoids. For UVB radiation, CBN was the most effective. The results acquired could be used for further redox biology studies on phytocannabinoids and evaluations of their mechanism of action at the molecular level. Furthermore, the UVA and UVB photoprotectivity of phytocannabinoids could also be utilized in the development of new cannabinoid-based topical preparations.
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Affiliation(s)
- Jan Vacek
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15, Olomouc, Czech Republic.
| | - Jitka Vostalova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15, Olomouc, Czech Republic
| | - Barbora Papouskova
- Department of Analytical Chemistry, Faculty of Science, Palacky University, 17. Listopadu 12, 771 46, Olomouc, Czech Republic
| | - Denisa Skarupova
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacky University, Hnevotinska 3, 775 15, Olomouc, Czech Republic
| | - Martin Kos
- Department of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02, Prague 6, Czech Republic
| | - Martin Kabelac
- Department of Chemistry, Faculty of Science, University of South Bohemia, Branisovska 31, 370 05, Ceske Budejovice, Czech Republic
| | - Jan Storch
- Department of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojova 135, 165 02, Prague 6, Czech Republic.
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10
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Welling MT, Deseo MA, Bacic A, Doblin MS. Untargeted Metabolomic Analyses Reveal Chemical Complexity of Dioecious Cannabis Flowers. Aust J Chem 2021. [DOI: 10.1071/ch21033] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cannabis is a mostly dioecious multi-use flowering plant genus. Sexual dimorphism is an important characteristic in Cannabis-based commercial production systems, which has consequences for fibre, seed, and the yield of secondary metabolites, such as phytocannabinoid and terpenes for therapeutic uses. Beyond the obvious morphological differences between male and female plants, metabolic variation among dioecious flowers is largely undefined. Here, we report a pilot metabolomic study comparing staminate (male) and pistillate (female) unisexual flowers. Enrichment of the α-linolenic acid pathway and consensus evaluation of the jasmonic acid (JA) related compound 12-oxo-phytodienoicacid (OPDA) among differentially abundant metabolites suggests that oxylipin signalling is associated with secondary metabolism and sex expression in female flowers. Several putative phytocannabinoid-like compounds were observed to be upregulated in female flowers, but full identification was not possible due to the limitation of available databases. Targeted analysis of 14 phytocannabinoids using certified reference standards (cannabidiolic acid (CBDA), cannabidiol (CBD), Δ9-tetrahydrocannabinolic acid A (Δ9-THCAA), Δ9-tetrahydrocannabinol (Δ9-THC), cannabichromenic acid (CBCA), cannabichromene (CBC), cannabigerolic acid (CBGA), cannabigerol (CBG), cannabinolic acid (CBNA), cannabinol (CBN), cannabidivarinic acid (CBDVA), cannabidivarin (CBDV), tetrahydrocannabivarinic acid (THCVA), and tetrahydrocannabivarin (THCV)) showed a higher total phytocannabinoid content in female flowers compared with the male flowers, as expected. In summary, the development of a phytocannabinoid-specific accurate-mass MSn fragmentation spectral library and gene pool representative metabolome has the potential to improve small molecule compound annotation and accelerate understanding of metabolic variation underlying phenotypic diversity in Cannabis.
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11
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Morales P, Jagerovic N. Synthetic and Natural Derivatives of Cannabidiol. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1297:11-25. [PMID: 33537934 DOI: 10.1007/978-3-030-61663-2_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The non-psychoactive component of Cannabis Sativa, cannabidiol (CBD), has centered the attention of a large body of research in the last years. Recent clinical trials have led to the FDA approval of CBD for the treatment of children with drug-resistant epilepsy. Even though it is not yet in clinical phases, its use in sleep-wake pathological alterations has been widely demonstrated.Despite the outstanding current knowledge on CBD therapeutic effects in numerous in vitro and in vivo disease models, diverse questions still arise from its molecular pharmacology. CBD has been shown to modulate a wide variety of targets including the cannabinoid receptors, orphan GPCRs such as GPR55 and GPR18, serotonin, adenosine, and opioid receptors as well as ligand-gated ion channels among others. Its pharmacology is rather puzzling and needs to be further explored in the disease context.Also, the metabolism and interactions of this phytocannabinoid with other commercialized drugs need to be further considered to elucidate its clinical potential for the treatment of specific pathologies.Besides CBD, natural and synthetic derivatives of this chemotype have also been reported exhibiting diverse functional profiles and providing a deeper understanding of the potential of this scaffold.In this chapter, we analyze the knowledge gained so far on CBD and its analogs specially focusing on its molecular targets and metabolic implications. Phytogenic and synthetic CBD derivatives may provide novel approaches to improve the therapeutic prospects offered by this promising chemotype.
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The effect of cannabis dry flower irradiation on the level of cannabinoids, terpenes and anti-cancer properties of the extracts. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101736] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Franchina FA, Dubois LM, Focant JF. In-Depth Cannabis Multiclass Metabolite Profiling Using Sorptive Extraction and Multidimensional Gas Chromatography with Low- and High-Resolution Mass Spectrometry. Anal Chem 2020; 92:10512-10520. [DOI: 10.1021/acs.analchem.0c01301] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Flavio A. Franchina
- Molecular Systems, Organic and Biological Analytical Chemistry Group, University of Liège, 11 Allée du Six Août, 4000 Liège, Belgium
| | - Lena M. Dubois
- Molecular Systems, Organic and Biological Analytical Chemistry Group, University of Liège, 11 Allée du Six Août, 4000 Liège, Belgium
| | - Jean-François Focant
- Molecular Systems, Organic and Biological Analytical Chemistry Group, University of Liège, 11 Allée du Six Août, 4000 Liège, Belgium
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Murillo-Rodríguez E, Arankowsky-Sandoval G, Pertwee RG, Parker L, Mechoulam R. Sleep and neurochemical modulation by cannabidiolic acid methyl ester in rats. Brain Res Bull 2020; 155:166-173. [DOI: 10.1016/j.brainresbull.2019.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 11/25/2019] [Accepted: 12/10/2019] [Indexed: 02/06/2023]
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Waugh TM, Masters J, Aliev AE, Marson CM. Monocyclic Quinone Structure-Activity Patterns: Synthesis of Catalytic Inhibitors of Topoisomerase II with Potent Antiproliferative Activity. ChemMedChem 2019; 15:114-124. [PMID: 31778038 DOI: 10.1002/cmdc.201900548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/28/2019] [Indexed: 12/12/2022]
Abstract
The monocyclic 1,4-benzoquinone, HU-331, the direct oxidation product of cannabidiol, inhibits the catalytic activity of topoisomerase II but without inducing DNA strand breaks or generating free radicals, and unlike many fused-ring quinones exhibits minimal cardiotoxicity. Thus, monocyclic quinones have potential as anticancer agents, and investigation of the structural origins of their biological activity is warranted. New syntheses of cannabidiol and (±)-HU-331 are here reported. Integrated synthetic protocols afforded a wide range of polysubstituted resorcinol derivatives; many of the corresponding novel 2-hydroxy-1,4-benzoquinone derivatives are potent inhibitors of the catalytic activity of topoisomerase II, some more so than HU-331, whose monoterpene unit replaced by a 3-cycloalkyl unit conferred increased antiproliferative properties in cell lines with IC50 values extending below 1 mM, and greater stability in solution than HU-331. The principal pharmacophore of quinones related to HU-331 was identified. Selected monocyclic quinones show potential for the development of new anticancer agents.
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Affiliation(s)
- Thomas M Waugh
- Department of Chemistry, University College London Christopher Ingold Laboratories, 20 Gordon Street, London, WC1H OAJ, UK
| | - John Masters
- Prostate Cancer Research Centre Research Department of Urology Charles Bell House, University College London, 67-75 Riding House Street, London, W1 W 7EJ, UK
| | - Abil E Aliev
- Department of Chemistry, University College London Christopher Ingold Laboratories, 20 Gordon Street, London, WC1H OAJ, UK
| | - Charles M Marson
- Department of Chemistry, University College London Christopher Ingold Laboratories, 20 Gordon Street, London, WC1H OAJ, UK
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