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Wang M, Li H, Hu B, Tang C, Xu H, Ke C, Xie Z, Ye Y, Yao S. Anti-inflammatory germacrane-type sesquiterpene lactones from Vernonia sylvatica. Chin J Nat Med 2024; 22:568-576. [PMID: 38906603 DOI: 10.1016/s1875-5364(24)60656-4] [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: 12/23/2023] [Indexed: 06/23/2024]
Abstract
Nine new germacranolides, sylvaticalides A-H (1-9), and three known analogues (10-12) were isolated from the aerial part of Vernonia sylvatica. Their structures were established using comprehensive spectroscopic analysis, including high-resolution electrospray ionization mass spectroscopy (HR-ESI-MS) and 1D and 2D nuclear magnetic resonance (NMR) spectra. Their absolute configurations were determined by X-ray diffraction experiments. The anti-inflammatory activities of all isolated compounds were assessed by evaluating their inhibitory effects on the nuclear factor kappa B (NF-κB) pathway, which was activated by lipopolysaccharide (LPS)-stimulated human THP1-Dual cells, and the interferon-stimulated gene (ISG) pathway, activated by STING agonist MSA-2 in the same cell model. Compounds 1, 2 and 6 showed inhibitory effects on the NF-κB and ISG signaling pathways, with IC50 values ranging from 4.12 to 10.57 μmol·L-1.
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Affiliation(s)
- Min Wang
- State Key Laboratory of Drug Research & Natural Products Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Han Li
- School of Life Science and Technology, Shanghai Tech University, Shanghai 201210, China; State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Bintao Hu
- State Key Laboratory of Drug Research & Natural Products Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Chunping Tang
- State Key Laboratory of Drug Research & Natural Products Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hui Xu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Changqiang Ke
- State Key Laboratory of Drug Research & Natural Products Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zuoquan Xie
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Yang Ye
- State Key Laboratory of Drug Research & Natural Products Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Life Science and Technology, Shanghai Tech University, Shanghai 201210, China.
| | - Sheng Yao
- State Key Laboratory of Drug Research & Natural Products Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China.
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2
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Abiola T, John EO, Sossou IT, Charles Callistus B. Immune boosting and ameliorative properties of aqueous extract of Vernonia amygdalina Delile against MSG-induced genotoxicity: An in silico and in vivo approach. Heliyon 2024; 10:e23226. [PMID: 38163244 PMCID: PMC10755317 DOI: 10.1016/j.heliyon.2023.e23226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Vernonia amygdalina (VA) is popularly consumed as food and as medicine due to its nutritional and bioactive constituents. This study assessed the anti-genotoxic effect of aqueous leaf extract of VA against monosodium (MSG) -induced genotoxicity. Crude extraction and phytochemical analysis were done using standard methods. In silico studies was done using compounds in the extract against Bcl-2, NF-kB 50, DNA polymerase lambda, DNA ligase, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX). Twelve rats were divided into three groups with four rats in each group. Group I was fed on food and water, group II received MSG (4 g/kg) per body weight (pbw) intraperitoneally, group III received MSG (4 g/kg) pbw intraperitoneally followed by oral dose of VA leaf extract (250 mg/kg) per body weight. The number of the micronucleated red blood cells and white blood cells were determined from blood smears microscopically. Results showed that aqueous extract of VA contained in mg/100 g alkaloids (7.04 ± 0.16), saponins (3.91 ± 0.13), flavonoid (1.64 ± 0.16), phenol (3.40 ± 0.12) and tannins (0.07 ± 0.32). In silico studies revealed high binding interaction (ΔG > -8.6) of vernoniosides D and E with all the tested proteins. There was a reduction in the number of micronucleated cells, neutrophils and eosinophils of the treated group compared to the MSG group, while there was an increase in the lymphocyte count. The anti-genotoxic effects of VA leaf extract might be attributed to the synergistic interaction of the various bioactive components in the extract. VA could be a potential plant for the prevention of cancer and other diseases that attenuate the immune system.
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Affiliation(s)
- Temitope Abiola
- Department of Biochemistry, Faculty of Basic Medical Sciences, Redeemer's University, Ede, Osun State, Nigeria
| | - Emmanuel O. John
- Department of Chemical Sciences, Biochemistry Unit, College of Natural and Applied Sciences, Oduduwa University, Ipetumodu, Ile-Ife, Osun State, Nigeria
| | - Ibukun Temitope Sossou
- Department of Medical Laboratory Sciences, Faculty of Basic Medical Sciences, Redeemer's University, Ede, Osun State, Nigeria
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3
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Djeujo FM, Stablum V, Pangrazzi E, Ragazzi E, Froldi G. Luteolin and Vernodalol as Bioactive Compounds of Leaf and Root Vernonia amygdalina Extracts: Effects on α-Glucosidase, Glycation, ROS, Cell Viability, and In Silico ADMET Parameters. Pharmaceutics 2023; 15:pharmaceutics15051541. [PMID: 37242783 DOI: 10.3390/pharmaceutics15051541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
The aqueous decoctions of Vernonia amygdalina (VA) leaves and roots are widely used in traditional African medicine as an antidiabetic remedy. The amount of luteolin and vernodalol in leaf and root extracts was detected, and their role was studied regarding α-glucosidase activity, bovine serum albumin glycation (BSA), reactive oxygen species (ROS) formation, and cell viability, together with in silico absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties. Vernodalol did not affect α-glucosidase activity, whereas luteolin did. Furthermore, luteolin inhibited the formation of advanced glycation end products (AGEs) in a concentration-dependent manner, whereas vernodalol did not reduce it. Additionally, luteolin exhibited high antiradical activity, while vernodalol demonstrated a lower scavenger effect, although similar to that of ascorbic acid. Both luteolin and vernodalol inhibited HT-29 cell viability, showing a half-maximum inhibitory concentration (IC50) of 22.2 µM (-Log IC50 = 4.65 ± 0.05) and 5.7 µM (-Log IC50 = 5.24 ± 0.16), respectively. Finally, an in silico ADMET study showed that both compounds are suitable candidates as drugs, with appropriate pharmacokinetics. This research underlines for the first time the greater presence of vernodalol in VA roots compared to leaves, while luteolin is prevalent in the latter, suggesting that the former could be used as a natural source of vernodalol. Consequently, root extracts could be proposed for vernodalol-dependent antiproliferative activity, while leaf extracts could be suggested for luteolin-dependent effects, such as antioxidant and antidiabetic effects.
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Affiliation(s)
| | - Valentina Stablum
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Elisa Pangrazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Eugenio Ragazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Guglielmina Froldi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
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4
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Synergistic Antibacterial Effect of Ethyl Acetate Fraction of Vernonia amygdalina Delile Leaves with Tetracycline against Clinical Isolate Methicillin-Resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa. Adv Pharmacol Pharm Sci 2023; 2023:2259534. [PMID: 36860376 PMCID: PMC9970709 DOI: 10.1155/2023/2259534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 01/04/2023] [Accepted: 01/31/2023] [Indexed: 02/22/2023] Open
Abstract
Multidrug-resistant bacteria have raised global concern about the inability to fight deadly infectious diseases. Methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa are the most common resistant bacteria that are causing hospital infections. The present study was undertaken to investigate the synergistic antibacterial effect of the ethyl acetate fraction of Vernonia amygdalina Delile leaves (EAFVA) with tetracycline against the clinical isolates MRSA and P. aeruginosa. Microdilution was used to establish the minimum inhibitory concentration (MIC). A checkerboard assay was conducted for the interaction effect. Bacteriolysis, staphyloxanthin, and a swarming motility assay were also investigated. EAFVA exhibited antibacterial activity against MRSA and P. aeruginosa with a MIC value of 125 μg/mL. Tetracycline showed antibacterial activity against MRSA and P. aeruginosa with MIC values of 15.62 and 31.25 μg/mL, respectively. The interaction between EAFVA and tetracycline showed a synergistic effect against MRSA and P. aeruginosa with a Fractional Inhibitory Concentration Index (FICI) of 0.375 and 0.31, respectively. The combination of EAFVA and tetracycline induced the alteration of MRSA and P. aeruginosa, leading to cell death. Moreover, EAFVA also inhibited the quorum sensing system in MRSA and P. aeruginosa. The results revealed that EAFVA enhanced the antibacterial activity of tetracycline against MRSA and P. aeruginosa. This extract also regulated the quorum sensing system in the tested bacteria.
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Identification of promising multi-targeting inhibitors of obesity from Vernonia amygdalina through computational analysis. Mol Divers 2023; 27:1-25. [PMID: 35179699 DOI: 10.1007/s11030-022-10397-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/24/2022] [Indexed: 02/08/2023]
Abstract
Vernonia amygdalina, a widely consumed West African food herb, can be a boon in the discovery of safe anti-obesity agents given the extensive reports on its anti-obesity and antidiabetic potentials. The main aim of this study was to screen 78 Vernonia-Derived Phytocompounds (VDPs) against the active site regions of Human Pancreatic Lipase (HPL), Human Pancreatic Amylase and Human Glucosidase (HG) as drug targets associated with obesity in silico. Structure-based virtual screening helped to identify Luteolin 7-O-glucuronoside and Andrographidoid D2 as hit compounds with dual targeting tendency towards the HPL and HG. Analysis of the molecular dynamic simulation trajectory files of the ligand-receptor complexes as computed from the thermodynamic parameters plots showed not only increased flexibility and greater interaction potential of the active site residues of the receptor towards the VDPs as indicated by the root mean square fluctuation but also higher stability as indicated by the root mean square deviation, radius of gyration and number of hydrogen bonds. The cluster analysis further showed that the interactions with important residues were preserved in the dynamic environment. These observations were further verified from Molecular Mechanics Generalized Born Surface Area Analysis, which also showed that residual contributions to the binding free energies were mainly from catalytic residues at the active sites of the enzymes. The hit compounds also feature desirable physicochemical properties and drug-likeness. This study provides in silico evidence for the inhibitory potential of phytochemicals from Vernonia amygdalina against two target enzymes in obesity.
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6
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Li P, Ma Y, Wang K, Shi X, Yang J, Liu G. Design, synthesis and antitumor activity of potent and safe para-quinone methides derivatives in vitro and in vivo. Biomed Pharmacother 2022; 156:113893. [DOI: 10.1016/j.biopha.2022.113893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/07/2022] [Accepted: 10/17/2022] [Indexed: 11/02/2022] Open
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7
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Keeratichamroen S, Lirdprapamongkol K, Thongnest S, Boonsombat J, Chawengrum P, Sornprachum T, Sirirak J, Verathamjamras C, Ornnork N, Ruchirawat S, Svasti J. JAK2/STAT3‑mediated dose‑dependent cytostatic and cytotoxic effects of sesquiterpene lactones from Gymnanthemum extensum on A549 human lung carcinoma cells. Oncol Rep 2021; 47:6. [PMID: 34738622 PMCID: PMC8600427 DOI: 10.3892/or.2021.8217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/04/2021] [Indexed: 12/19/2022] Open
Abstract
Due to drug resistance and disease recurrence, lung cancer remains one of the primary cancer-related causes of death in both men and women worldwide. In addition, lung cancer is clinically silent and thus most patients are at an advanced stage at the time of diagnosis. The limited efficiency of current conventional chemotherapies necessitates the search for novel effective anticancer agents. The present study demonstrated the anti-proliferative effect and apoptosis-inducing activity of three sesquiterpene lactones isolated from Gymnanthemum extensum, vernodalin (VDa), vernolepin (VLe) and vernolide (VLi), on A549 human lung cancer cells. Treatment with sub-cytotoxic doses (cell viability remaining >75%) of VDa, VLe and VLi, arrested progression of the A549 cell cycle at the G0/G1 phase, while cytotoxic doses of the three compounds induced G2/M phase arrest and apoptosis. Mechanistic studies revealed that VDa, VLe and VLi may exert their anti-tumor activity through the JAK2/STAT3 pathway. Molecular docking analysis confirmed that VDa, VLe and VLi formed hydrogen bonds with the FERM domain of JAK2 protein. Overall, the present study highlighted the potential therapeutic value of VDa, VLe and VLi to be further developed as anticancer agents for the treatment of lung cancer.
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Affiliation(s)
| | | | - Sanit Thongnest
- Laboratory of Natural Products, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Jutatip Boonsombat
- Laboratory of Natural Products, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Pornsuda Chawengrum
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Thiwaree Sornprachum
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Jitnapa Sirirak
- Department of Chemistry, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Chris Verathamjamras
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Narittira Ornnork
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Center of Excellence on Environmental Health and Toxicology, Ministry of Education, Bangkok 10400, Thailand
| | - Jisnuson Svasti
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
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8
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The Effect of Different Ester Chain Modifications of Two Guaianolides for Inhibition of Colorectal Cancer Cell Growth. Molecules 2021; 26:molecules26185481. [PMID: 34576952 PMCID: PMC8469367 DOI: 10.3390/molecules26185481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/10/2021] [Accepted: 08/17/2021] [Indexed: 12/24/2022] Open
Abstract
Several sesquiterpene lactones (STLs) have been tested as lead drugs in cancer clinical trials. Salograviolide-A (Sal-A) and salograviolide-B (Sal-B) are two STLs that have been isolated from Centaurea ainetensis, an indigenous medicinal plant of the Middle Eastern region. The parent compounds Sal-A and Sal-B were modified and successfully prepared into eight novel guaianolide-type STLs (compounds 1-8) bearing ester groups of different geometries. Sal-A, Sal-B, and compounds 1-8 were tested against a human colorectal cancer cell line model with differing p53 status; HCT116 with wild-type p53 and HCT116 p53-/- null for p53, and the normal-like human colon mucosa cells with wild-type p53, NCM460. IC50 values indicated that derivatization of Sal-A and Sal-B resulted in potentiation of HCT116 cell growth inhibition by 97% and 66%, respectively. The effects of the different molecules on cancer cell growth were independent of p53 status. Interestingly, the derivatization of Sal-A and Sal-B molecules enhanced their anti-growth properties versus 5-Fluorouracil (5-FU), which is the drug of choice in colorectal cancer. Structure-activity analysis revealed that the enhanced molecule potencies were mainly attributed to the position and number of the hydroxy groups, the lipophilicity, and the superiority of ester groups over hydroxy substituents in terms of their branching and chain lengths. The favorable cytotoxicity and selectivity of the potent molecules, to cancer cells versus their normal counterparts, pointed them out as promising leads for anti-cancer drug design.
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9
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Covid-19 treatment: Investigation on the phytochemical constituents of Vernonia amygdalina as potential Coronavirus-2 inhibitors. ACTA ACUST UNITED AC 2021; 18:100161. [PMID: 33619460 PMCID: PMC7889463 DOI: 10.1016/j.comtox.2021.100161] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 01/08/2021] [Accepted: 02/14/2021] [Indexed: 11/23/2022]
Abstract
The upsurge in the current cases of COVID-19 poses a major threat on human health and population all over the globe. The emergence of new infectious diseases and increase in frequency of drug resistant viruses demand effective and novel therapeutic agents. In this study, we used bioinformatics approach to investigate the possible inhibitory potentials of phytochemical constituents of Vernonia amygdalina towards coronavirus-2 major protease. Pharmacodynamics, pharmacokinetics and toxicological profiles of the compounds were also examined using the pkCSM server. All the phytochemicals showed good binding affinity to the binding pocket of PDB ID 6LU7. It was observed that veronicoside A exhibited the highest binding affinity when compared to remdesivir, hydroxy-vernolide, vernodalin, vernodalol, and vernolide. The amino acids LEU272, LEU287, GLY275, TYR237, LYS236, THR198, THR199, ARG131, and LYS5 were showed as the key residues for veronicoside A binding to human SARS-COV2 major protease. The Pharmacodynamics and pharmacokinetics results suggested that all the tested phytochemicals have significant drug likeness properties and they could be absorbed through the human intestine. Furthermore, all the tested phytochemicals are not hepatoxic and also exhibited non or relatively low toxic effects in human. Taken together, the results of this study indicated that all the tested phytochemicals are potential putative inhibitors of SARS-COV2 major protease with non or low toxicity effects. However, further experimental and clinical studies are needed to further explore their activities and validate their efficacies against COVID-19.
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De Cicco P, Busà R, Ercolano G, Formisano C, Allegra M, Taglialatela-Scafati O, Ianaro A. Inhibitory effects of cynaropicrin on human melanoma progression by targeting MAPK, NF-κB, and Nrf-2 signaling pathways in vitro. Phytother Res 2020; 35:1432-1442. [PMID: 33058354 DOI: 10.1002/ptr.6906] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 09/14/2020] [Accepted: 09/21/2020] [Indexed: 01/02/2023]
Abstract
Malignant melanoma is the deadliest skin cancer, due to its propensity to metastasize. MAPKs and NF-κB pathways are constitutively activated in melanoma and promote cell proliferation, cell invasion, metastasis formation, and resistance to therapeutic regimens. Thus, they represent potential targets for melanoma prevention and treatment. Phytochemicals are gaining considerable attention for the management of melanoma because of their several cellular and molecular targets. A screening of a small library of sesquiterpenes lactones selected cynaropicrin, isolated from the aerial parts of Centaurea drabifolia subsp. detonsa, for its potential anticancer effect against melanoma cells. Treatment of human melanoma cells A375 with cynaropicrin resulted in inhibition of cell proliferation and induction of caspase-3-dependent apoptosis. Furthermore, cynaropicrin reduced several cellular malignant features such migration, invasion, and colonies formation through the inhibition of ERK1/2 and NF-κB activity. Cynaropicrin was able to reduce intracellular reactive oxygen species generation, which are involved in all the stages of carcinogenesis. Indeed, cynaropicrin increased the expression of several antioxidant genes, such as glutamate-cysteine ligase and heme oxygenase-1, by promoting the activation of the transcription factor Nrf-2. In conclusion, our results individuate cynaropicrin as a potential adjuvant chemotherapeutic agent for melanoma by targeting several protumorigenic signaling pathways.
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Affiliation(s)
- Paola De Cicco
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Rosalia Busà
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), University of Palermo, Palermo, Italy.,Research Department, Mediterranean Institute for Transplantation and Advanced Specialized Therapies (IRCCS ISMETT), Palermo, Italy
| | - Giuseppe Ercolano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy.,Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Carmen Formisano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Mario Allegra
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | | | - Angela Ianaro
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
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Dumas NGE, Anderson NTY, Godswill NN, Thiruvengadam M, Ana-Maria G, Ramona P, Crisan GC, Laurian V, Shariati MA, Tokhtarov Z, Emmanuel Y. Secondary metabolite contents and antimicrobial activity of leaf extracts reveal genetic variability of Vernonia amygdalina and Vernonia calvoana morphotypes. Biotechnol Appl Biochem 2020; 68:938-947. [PMID: 32881085 DOI: 10.1002/bab.2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/12/2020] [Indexed: 01/14/2023]
Abstract
Vernonia species (Asteraceae) are indigenous medicinal and food leaf vegetables commonly consumed in some African countries like Cameroon where they constitute a staple dish called "ndolé." Previous studies have demonstrated the nutritional importance of Vernonia, but there is little knowledge of their agronomic value and genetic potentials. Wide genetic variability in the genus has been established earlier through the study of its pollen. However, to the best of our understanding, no such study has been undertaken on the genetic variability of Vernonia with respect to its secondary metabolites. This study was therefore aimed at evaluating the genetic variability of Vernonia amygdalina (VAA and VALF) and V. calvoana (VCAB, VCAV, VCSB, and VCSV) morphotypes in 2016 based on secondary metabolite content and antimicrobial properties. This involved phytochemical analysis by HPLC/MS for the detection of alkaloids, flavonoids, phenols, and tannins in leaves from each of the six genotypes. Results showed that all tested genotypes are rich in phenols (18 analyzed), flavonoids, and tannins with, VAA richer in phenols (206.1 ± 3.12 µg/g of dry extract), followed by VCAV (197.9 ± 18.03 µg/g). The lowest level of flavonoid was found in VCSV (81.6 ± 7.21 µg/g), while the highest was from VCAB (132.8 ± 31.5 µg/g). VCSV (56.3 ± 4.08 µg/g) had the lowest level of tannins, while VCAB (97.8 ± 23.8 µg/g) had the highest levels. Assessment of antimicrobial activity of leaf extracts from the six genotypes was done by culture on Mueller Hinton (MH) agar and MH broth agar for bacteria and in Sabouraud dextrose agar and Sabouraud dextrose broth media for fungi, respectively. All morphotypes exhibited inhibitory activity on bacteria except VAA, with isoquercetin characteristic of VCSV. Chemotaxonomic analyses of Vernonia morphotypes highlighted the genetic diversity within species and variability of antimicrobial properties of ethanolic leaf extracts among morphotypes. These results provide baseline data in the valuation of genetic resources and the establishment of improvement programs.
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Affiliation(s)
| | - Ngandjui Tchangoue Yvan Anderson
- Department of Organic Chemistry, Faculty of Science, University of Yaounde 1, Yaounde, Cameroon.,Laboratory of Pharmaceutical Botany, Faculty of Pharmacy, University of Medicine and Pharmacy "Luliu Hatieganu" Str. Gheorghe Marinescu, Cluj-Napoca, Cluj, 400337, Romania
| | - Ntsomboh-Ntsefong Godswill
- Faculty of Science, Department of Plant Biology, University of Yaounde I, Yaounde, Cameroon.,Directorate of Research Valorisation and Innovation, Institute of Agricultural Research for Development (IRAD), Yaounde, Cameroon
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul, 05029, Republic of Korea
| | - Gheldiu Ana-Maria
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, University of Medicine and Pharmacy "Luliu Hatieganu" 8, Victor Babes, Cluj-Napoca, Cluj, 400012, Romania
| | - Paltinean Ramona
- Laboratory of Pharmaceutical Botany, Faculty of Pharmacy, University of Medicine and Pharmacy "Luliu Hatieganu" Str. Gheorghe Marinescu, Cluj-Napoca, Cluj, 400337, Romania
| | - Gianina Cristina Crisan
- Laboratory of Pharmaceutical Botany, Faculty of Pharmacy, University of Medicine and Pharmacy "Luliu Hatieganu" Str. Gheorghe Marinescu, Cluj-Napoca, Cluj, 400337, Romania
| | - Vlase Laurian
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, University of Medicine and Pharmacy "Luliu Hatieganu" 8, Victor Babes, Cluj-Napoca, Cluj, 400012, Romania
| | - Mohammad Ali Shariati
- Department of Technology of Food Production, K. G. Razumovsky Moscow State University of Technologies and Management (The First Cossack University), Moscow, 109004, Russian Federation
| | | | - Youmbi Emmanuel
- Faculty of Science, Department of Plant Biology, University of Yaounde I, Yaounde, Cameroon.,Tissue Culture Laboratory, African Centre for Research on Banana and Plantain (CARBAP), Njombe, Cameroon
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Mandal SK, Debnath U, Kumar A, Thomas S, Mandal SC, Choudhury MD, Palit P. Natural Sesquiterpene Lactones in the Prevention and Treatment of Inflammatory Disorders and cancer: A Systematic Study of this Emerging Therapeutic Approach based on Chemical and Pharmacological Aspect. LETT DRUG DES DISCOV 2020. [DOI: 10.2174/1570180817999200421144007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Background and Introduction:
Sesquiterpene lactones are a class of secondary metabolite
that contains sesquiterpenoids and lactone ring as pharmacophore moiety. A large group of bioactive
secondary metabolites such as phytopharmaceuticals belong to this category. From the Asteraceae
family-based medicinal plants, more than 5,000 sesquiterpene lactones have been reported so
far. Sesquiterpene lactone-based pharmacophore moieties hold promise for broad-spectrum biological
activities against cancer, inflammation, parasitic, bacterial, fungal, viral infection and other functional
disorders. Moreover, these moiety based phytocompounds have been highlighted with a new
dimension in the natural drug discovery program worldwide after the 2015 Medicine Nobel Prize
achieved by the Artemisinin researchers.
Objective:
These bitter substances often contain an α, β-unsaturated-γ-lactone as a major structural
backbone, which in recent studies has been explored to be associated with anti-tumor, cytotoxic, and
anti-inflammatory action. Recently, the use of sesquiterpene lactones as phytomedicine has been
increased. This study will review the prospect of sesquiterpene lactones against inflammation and
cancer.
Methods:
Hence, we emphasized on the different features of this moiety by incorporating its structural
diversity on biological activities to explore structure-activity relationships (SAR) against inflammation
and cancer.
Results:
How the dual mode of action such as anti-inflammatory and anti-cancer has been exhibitedby
these phytopharmaceuticals will be forecasted in this study. Furthermore, the correlation of
anti-inflammatory and anti-cancer activity executed by the sesquiterpene lactones for fruitful phytotherapy
will also be revealed in the present review in the milieu of pharmacophore activity relation
and pharmacodynamics study as well.
Conclusion:
So, these metabolites are paramount in phytopharmacological aspects. The present discussion
on the future prospect of this moiety based on the reported literature could be a guide for
anti-inflammatory and anti-cancer drug discovery programs for the upcoming researchers.
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Affiliation(s)
- Sudip Kumar Mandal
- Department of Pharmaceutical Chemistry, Dr. B.C. Roy College of Pharmacy & Allied Health Sciences, Durgapur- 713206, India
| | - Utsab Debnath
- School of Pharmaceutical Technology, Adamas University, Kolkata 700126, India
| | - Amresh Kumar
- Department of Life Science and Bioinformatics, Biotech Hub, Assam University, Silchar, Assam-788011, India
| | - Sabu Thomas
- Mahatma Gandhi University, Kottayam-686560, Kerala, India
| | - Subhash Chandra Mandal
- Department of Pharmaceutical Technology, Pharmacognosy and Phytotherapy Research Laboratory, Jadavpur University, Kolkata 700032, India
| | - Manabendra Dutta Choudhury
- Department of Life Science and Bioinformatics, Biotech Hub, Assam University, Silchar, Assam-788011, India
| | - Partha Palit
- Department of Pharmaceutical Sciences, Drug Discovery Research Laboratory, Division of Pharmacognosy, Assam University (A Central University), Silchar-788011, India
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13
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The anticancer activities of Vernonia amygdalina Delile. Leaves on 4T1 breast cancer cells through phosphoinositide 3-kinase (PI3K) pathway. Heliyon 2020; 6:e04449. [PMID: 32715129 PMCID: PMC7371756 DOI: 10.1016/j.heliyon.2020.e04449] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/03/2020] [Accepted: 07/10/2020] [Indexed: 12/25/2022] Open
Abstract
Vernonia amygdalina Delile (Asteraceae) is used in traditional medicine to treat diabetes mellitus, and some research provides its activity to treat breast cancer. The aim of this study is to assess the anticancer activity of Vernonia amygdalina Delile leaves fractions on 4T1 breast cancer cells. Analysis of phytochemical compounds were carried out with LC-MS/MS. Cytotoxic activity was determined using the MTT method in the 4T1 cell line. Apoptosis, the cell cycle, and PI3K and mTOR profiles were analyzed with flow cytometry. The phytochemicals found were diterpene (ingenol-3-angelate) and some phenolics (chlorogenic acid and 4-methoxycinnamic acid), flavonoids (apigetrin, apigenin, luteolin, diosmetin, baicalin, rhoifolin, and scutellarin), and coumarines (7-hydroxycoumarine, 4-methylumbelliferone, and 4-methylumbelliferyl glucuronide). The results of the MTT assay showed that the IC50 values n-hexane fraction, ethylacetate fraction (EAF), and ethanol fractions were 1,860.54 ± 93.11, 25.04 ± 0.36, and 1,940.84 ± 96.37 μg/mL, respectively. EAF induced early and late apoptosis, inhibited cell cycle progression on the G2/M phase, and inhibited PI3K and mTOR expression. The EAF of Vernonia amygdalina Delile leaves showed anticancer activity on 4T1 breast cancer cells through induction of apoptosis, enhanced cell accumulation on G2/M phases in the cell cycle, and inhibited expression of PI3K and mTOR.
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14
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Oboh G, Adedayo BC, Adetola MB, Oyeleye IS, Ogunsuyi OB. Characterization and neuroprotective properties of alkaloid extract ofVernonia amygdalinaDelile in experimental models of Alzheimer’s disease. Drug Chem Toxicol 2020; 45:731-740. [DOI: 10.1080/01480545.2020.1773845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit of Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Bukola Christiana Adedayo
- Functional Foods and Nutraceuticals Unit of Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Mayowa Blessing Adetola
- Functional Foods and Nutraceuticals Unit of Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Idowu Sunday Oyeleye
- Functional Foods and Nutraceuticals Unit of Biochemistry Department, Federal University of Technology, Akure, Nigeria
- Department of Biomedical Technology, Federal University of Technology, Akure, Nigeria
| | - Opeyemi Babatunde Ogunsuyi
- Functional Foods and Nutraceuticals Unit of Biochemistry Department, Federal University of Technology, Akure, Nigeria
- Department of Biomedical Technology, Federal University of Technology, Akure, Nigeria
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15
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Oliveira IDSDS, Colares AV, Cardoso FDO, Tellis CJM, Chagas MDSDS, Behrens MD, Calabrese KDS, Almeida-Souza F, Abreu-Silva AL. Vernonia polysphaera Baker: Anti-inflammatory activity in vivo and inhibitory effect in LPS-stimulated RAW 264.7 cells. PLoS One 2019; 14:e0225275. [PMID: 31830043 PMCID: PMC6907817 DOI: 10.1371/journal.pone.0225275] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/30/2019] [Indexed: 01/12/2023] Open
Abstract
Species of the Vernonia genius are widely distributed across the world. In traditional communities, they are commonly used in popular medicine for the treatment of inflammatory diseases. The objective of the present study was to evaluate the anti-inflammatory activity of Vernonia polysphaera Baker hydroalcoholic extract. A λ-carrageenan-induced paw edema and peritonitis model was established in BALB/c mice. The in vitro activity of the extract was measured on LPS-stimulated RAW 264.7 cells. There was no toxic effect on mice or on the cells treated with the extract. Animals treated with V. polysphaera extract demonstrated inhibition of paw edema in comparison with the untreated animals at all the analyzed doses. In peritonitis, treatment with the extract at a dose of 500 mg/kg resulted in a lower total leukocyte count in the peritoneal fluid and blood and lower levels of IL-1β, IL-6, TNF-α and PGE-2 than the control group. Cells treated with 50 and 100 μg/mL of the extract exhibited lower levels of nitrite and pro-inflammatory cytokine production and lower COX-2, NF-κB expression. The V. polysphaera extract demonstrated an anti-inflammatory effect, interfering with cell migration, reducing pro-inflammatory cytokine levels and COX-2 expression and consequent interference with PGE-2, as well as inhibiting NF-κB transcription.
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Affiliation(s)
| | | | - Flávia de Oliveira Cardoso
- Laboratório de Imunomodulação e Protozoologia, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Maria Dutra Behrens
- Departamento de Produtos Naturais, Farmanguinhos-Fiocruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Kátia da Silva Calabrese
- Laboratório de Imunomodulação e Protozoologia, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernando Almeida-Souza
- Laboratório de Imunomodulação e Protozoologia, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brazil
- Pós-graduação em Ciência Animal, Universidade Estadual do Maranhão, São Luís, Maranhão, Brazil
- * E-mail:
| | - Ana Lúcia Abreu-Silva
- Pós-graduação em Ciência Animal, Universidade Estadual do Maranhão, São Luís, Maranhão, Brazil
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16
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Luu TQ, Le PT, Le KCM, Phan AHT, Zitzmann K, Nguyen KT, Phan NVH, Nguyen KT. Improving the quality of
Vernonia amygdalina
extract by ultrasound‐assisted extraction coupled with gas bubble flotation. J FOOD PROCESS ENG 2019. [DOI: 10.1111/jfpe.13284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Trong Q. Luu
- School of Biotechnology, International UniversityViet Nam National University Ho Chi Minh City Vietnam
| | - Phat T. Le
- School of Biotechnology, International UniversityViet Nam National University Ho Chi Minh City Vietnam
| | - Khoa C. M. Le
- School of Biotechnology, International UniversityViet Nam National University Ho Chi Minh City Vietnam
| | - An H. T. Phan
- School of Biotechnology, International UniversityViet Nam National University Ho Chi Minh City Vietnam
| | - Kim Zitzmann
- College of ScienceUniversity College Dublin, Belfield Dublin Ireland
| | - Kim T. Nguyen
- School of Biotechnology, International UniversityViet Nam National University Ho Chi Minh City Vietnam
| | - Nam V. H. Phan
- Ho Chi Minh City Medicine and Pharmacy University Ho Chi Minh City Vietnam
| | - Khoi T. Nguyen
- School of Biotechnology, International UniversityViet Nam National University Ho Chi Minh City Vietnam
- School of Chemical EngineeringThe University of Queensland Brisbane Queensland Australia
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17
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Fachrunisa D, Hasibuan PAZ, Harahap U. Cell Cycle Inhibition and Apoptotic Induction of Vernonia amygdalina Del. Leaves Extract on MCF-7 Cell Line. Open Access Maced J Med Sci 2019; 7:3807-3810. [PMID: 32127981 PMCID: PMC7048348 DOI: 10.3889/oamjms.2019.509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 11/29/2022] Open
Abstract
AIM: The research aimed to determine the cytotoxic activity, cell cycle inhibition, and apoptosis induction of the ethyl acetate extract of the African leaves Vernonia amygdalina Del. on the MCF-7 cancer cells. METHODS: The extraction of Vernonia amygdalina Del. leaves was done using the maceration method whereas the cytotoxic was performed using MTT assay. After that, the cell cycle testing and apoptosis induction were conducted using flow cytometry assay. RESULTS: The IC50 values of n-hexane, ethyl acetate, and ethanol extract of Vernonia amygdalina Del. on the MCF-7 cancer cells were 206.211 ± 0.99, 50,365 ± 0.07, and 967.033 ± 2.68 µg/mL, respectively. The percentage of the cycle cell results in the G0-G1 phase in the cell control with 72.08% decreased in the treatment with ethyl acetate extract 1/2 IC50 with 62.58% and 1/5 IC50 with 44.72%. For the S and G2-M phase, the highest percentage was found in the ethyl acetate extract 1/5 IC50 treatment with 47.27% and 9.50% which were higher than the control cells with 23.26% and 5.90%. CONCLUSION: Based on the results, the Vernonia amygdalina Del. extract provides chemopreventive agent as anti-cancer. Our future study will assess the mechanism of ethyl acetate fraction in inhibiting angiogenesis and metastatic in breast cancer.
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Affiliation(s)
- Dian Fachrunisa
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan 20155, Indonesia
| | | | - Urip Harahap
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan 20155, Indonesia
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18
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Thongnest S, Chawengrum P, Keeratichamroen S, Lirdprapamongkol K, Eurtivong C, Boonsombat J, Kittakoop P, Svasti J, Ruchirawat S. Vernodalidimer L, a sesquiterpene lactone dimer from Vernonia extensa and anti-tumor effects of vernodalin, vernolepin, and vernolide on HepG2 liver cancer cells. Bioorg Chem 2019; 92:103197. [PMID: 31445193 DOI: 10.1016/j.bioorg.2019.103197] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/06/2019] [Accepted: 08/13/2019] [Indexed: 01/18/2023]
Abstract
Vernonia extensa, known as "Phim Phai Lin" in Thai, is distributed in most regions of Thailand. The plant has been used in Ayurveda and traditionally used to treat malaria and cancer, and possesses several sesquiterpene lactones. This study aimed to investigate and identify the active constituents by bioactivity-based analysis, as well as to evaluate the cytotoxic activity of V. extensa by MTT or XTT assays in ten cancer cell lines (Liver HepG2 and S102; Bile duct HuCCA-1; Leukemia HL-60 and MOLT-3; Lung A549 and H69AR; Breast MDA-MB-231 and T47D; Cervical HeLa). Bioactivity-guided fractionation and semi-preparative HPLC purification were used to separate the bioactive constituents. Apoptosis-inducing activity and cell cycle inhibitory effect of selected active compounds were determined on HepG2 cells by flow cytometric analysis. Bioactivity-guided fractionation of the CH2Cl2 extract and chemical investigation of the cytotoxic fractions led to the isolation of a new sesquiterpenoid pseudo-dimer named vernodalidimer L, together with eight known sesquiterpenoids from the aerial part of V. extensa. The structures of the isolates were elucidated based on spectroscopic analysis, including 1D and 2D NMR and HRMS. Vernolide has potent broad-spectrum cytotoxicity with IC50 values in the range of 0.91-13.84 μM, against all ten cancer cell lines. The annexin-V flow cytometric analysis showed that vernodalin, vernolepin, and vernolide induced apoptosis on HepG2 cells in a dose dependent manner and these effects correlated with G2/M phase cell cycle arrest. Our results indicated that vernodalin, vernolepin, and vernolide have potential to be used as lead compounds in the development of a therapeutic natural product for treatment of liver cancer.
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Affiliation(s)
- Sanit Thongnest
- Laboratory of Natural Products, Chulabhorn Research Institute, Bangkok 10210, Thailand.
| | - Pornsuda Chawengrum
- Program of Chemical Biology, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | | | | | - Chatchakorn Eurtivong
- Program of Chemical Biology, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Jutatip Boonsombat
- Laboratory of Natural Products, Chulabhorn Research Institute, Bangkok 10210, Thailand.
| | - Prasat Kittakoop
- Program of Chemical Biology, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Jisnuson Svasti
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Laboratory of Natural Products, Chulabhorn Research Institute, Bangkok 10210, Thailand; Program of Chemical Biology, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand; The Center of Excellence on Environmental Health and Toxicology, Commission on Higher Education, Ministry of Education, Bangkok 10400, Thailand
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19
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Turak A, Aisa HA. Three new elemanolides from the seeds of Vernonia anthelmintica. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:313-320. [PMID: 28675942 DOI: 10.1080/10286020.2017.1343304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 06/13/2017] [Indexed: 06/07/2023]
Abstract
Three new elemanolides, named vernonilides D (1), E (2), and F (3), along with four known sesquiterpenoids, including two elemanolides (4, 5), a guaianolide (6), and a germacranolide (7) were isolated from the seeds of Vernonia anthelmintica. The structures of them were elucidated based on 1D and 2D NMR experiments and comparison with published data. Cytotoxicity of the compounds against four human tumor cell lines was assayed. 6 showed strongly inhibitory effect against HCT-15 and PC-3 cell lines with IC50 values of 0.56 and 0.69 μM, respectively. The new compounds showed moderate cytotoxicity against four cell lines with IC50 values ranging from 9.1 to 28.1 μM.
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MESH Headings
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Drug Screening Assays, Antitumor
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Halogenated Diphenyl Ethers
- Humans
- Inhibitory Concentration 50
- Lactones/chemistry
- Lactones/isolation & purification
- Lactones/pharmacology
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Seeds/chemistry
- Sesquiterpenes/chemistry
- Sesquiterpenes/isolation & purification
- Sesquiterpenes/pharmacology
- Sesquiterpenes, Guaiane/chemistry
- Sesquiterpenes, Guaiane/isolation & purification
- Sesquiterpenes, Guaiane/pharmacology
- Vernonia/chemistry
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Affiliation(s)
- Ablajan Turak
- a State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization , Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
| | - Haji Akber Aisa
- a State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization , Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
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20
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Steroidal Saponins from Vernonia amygdalina Del. and Their Biological Activity. Molecules 2018; 23:molecules23030579. [PMID: 29510543 PMCID: PMC6017044 DOI: 10.3390/molecules23030579] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/01/2018] [Accepted: 03/02/2018] [Indexed: 11/16/2022] Open
Abstract
In the present study, four new steroidal saponins, namely vernoniamyoside A–D (1–4), together with the two known steroidal saponins vernoamyoside D (5) and vernonioside B2 (6) were isolated from the ethanol extract of leaves of the African medicinal plant Vernonia amygdalina Del. (Asteraceae). Their structures were demonstrated by spectral analyses along with 1D and 2D nuclear magnetic resonance (NMR) techniques and mass spectrometry (MS). The cytotoxicity of the compounds was also tested by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method on the cell lines Hela, MCF-7, BT-549 and MDA-MB-231. Vernoniamyoside A, vernoniamyoside B, and vernonioside B2 showed cytotoxicity towards BT-549 cell lines. Vernoniamyoside C, vernoniamyoside D and vernoamyoside D showed different levels of cytotoxic activities.
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21
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Vernonia amygdalina : A folkloric herb with anthelminthic properties. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2018. [DOI: 10.1016/j.bjbas.2017.07.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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22
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Valkute TR, Aratikatla EK, Gupta NA, Ganga S, Santra MK, Bhattacharya AK. Synthesis and anticancer studies of Michael adducts and Heck arylation products of sesquiterpene lactones, zaluzanin D and zaluzanin C from Vernonia arborea. RSC Adv 2018; 8:38289-38304. [PMID: 35559081 PMCID: PMC9089800 DOI: 10.1039/c8ra06238b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 11/03/2018] [Indexed: 11/13/2022] Open
Abstract
Sesquiterpene lactones containing α-methylene-γ-lactones, zaluzanin D 1 and zaluzanin C 2 were isolated from the leaves of Vernonia arborea. Several diverse Michael adducts (3–22) and Heck arylation analogs (23–34) of 1 have been synthesized by reacting with various amines and aryl iodides, respectively and were assayed for their in vitro anticancer activities against human breast cancer cell lines MCF7 and MDA-MB-231. Among all the synthesized analogs, Michael adducts 9 and 10 showed better anticancer activities as compared to 1. However, among these compounds, only 10 has minimal cytotoxic effect on normal breast epithelial MCF10A cells. Our detailed mechanistic studies reveal that compounds 9 and 10 execute their antiproliferative activity through induction of apoptosis and thereby inhibit the cancer cells proliferation and compound 10 could be a lead compound for designing potential anti-cancer compound. Sesquiterpene lactones containing α-methylene-γ-lactones, zaluzanin D 1 and zaluzanin C 2 were isolated from the leaves of Vernonia arborea.![]()
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Affiliation(s)
- Tushar R. Valkute
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-41108
- India
| | - Eswar K. Aratikatla
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-41108
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Neha A. Gupta
- Biology of Cancer and Chronic Diseases
- National Centre for Cell Sciences
- Pune-411 007
- India
| | - S. Ganga
- Biology of Cancer and Chronic Diseases
- National Centre for Cell Sciences
- Pune-411 007
- India
| | - Manas K. Santra
- Biology of Cancer and Chronic Diseases
- National Centre for Cell Sciences
- Pune-411 007
- India
| | - Asish K. Bhattacharya
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune-41108
- India
- Academy of Scientific and Innovative Research (AcSIR)
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23
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Sirignano C, Snene A, Rigano D, Tapanelli S, Formisano C, Luciano P, El Mokni R, Hammami S, Tenoh AR, Habluetzel A, Taglialatela-Scafati O. Angeloylated Germacranolides from Daucus virgatus and Their Plasmodium Transmission Blocking Activity. JOURNAL OF NATURAL PRODUCTS 2017; 80:2787-2794. [PMID: 28976194 DOI: 10.1021/acs.jnatprod.7b00603] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Phytochemical investigation of the aerial parts of the Tunisian plant Daucus virgatus led to the isolation of eight new germacranolides named daucovirgolides A-H (1-8). The stereostructures of these sesquiterpene lactones, decorated by either one or two angeloyl groups, have been determined by a combination of MS, NMR spectroscopy, chemical derivatization, and comparison of experimental electronic circular dichroism curves with TDDFT-predicted data. Daucovirgolide G (7) proved to be the single member of this family to possess a marked inhibitory activity (92% at 50 μg/mL) on the development of Plasmodium early sporogonic stages, the nonpathogenic transmissible stages of malaria parasites, devoid of general cytotoxicity. The selective activity of daucovirgolide G points to the existence of strict structural requirements for this transmission-blocking activity and therefore of a well-defined, although yet unidentified, biological target.
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Affiliation(s)
- Carmina Sirignano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II , Via Montesano 49, 80131 Naples, Italy
| | - Alì Snene
- Research Unit Applied Chemistry and Environment 13ES63, Faculty of Sciences, University of Monastir , 5000, Monastir, Tunisia
| | - Daniela Rigano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II , Via Montesano 49, 80131 Naples, Italy
| | - Sofia Tapanelli
- Scuola di Scienza del Farmaco e dei Prodotti della Salute, Università di Camerino , Via d'Accorso 16, 63032 Camerino (MC), Italy
| | - Carmen Formisano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II , Via Montesano 49, 80131 Naples, Italy
| | - Paolo Luciano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II , Via Montesano 49, 80131 Naples, Italy
| | - Ridha El Mokni
- Laboratory of Transmissible Diseases LR99ES27, Faculty of Pharmacy, University of Monastir , Avicenne Street, 5000, Monastir, Tunisia
| | - Saoussen Hammami
- Research Unit Applied Chemistry and Environment 13ES63, Faculty of Sciences, University of Monastir , 5000, Monastir, Tunisia
| | - Alain Rodrigue Tenoh
- Scuola di Scienza del Farmaco e dei Prodotti della Salute, Università di Camerino , Via d'Accorso 16, 63032 Camerino (MC), Italy
| | - Annette Habluetzel
- Scuola di Scienza del Farmaco e dei Prodotti della Salute, Università di Camerino , Via d'Accorso 16, 63032 Camerino (MC), Italy
| | - Orazio Taglialatela-Scafati
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II , Via Montesano 49, 80131 Naples, Italy
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24
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Antiproliferative activity against leukemia cells of sesquiterpene lactones from the Turkish endemic plant Centaurea drabifolia subsp. detonsa. Fitoterapia 2017; 120:98-102. [DOI: 10.1016/j.fitote.2017.05.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 05/29/2017] [Accepted: 05/30/2017] [Indexed: 11/23/2022]
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25
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Formisano C, Sanna C, Ballero M, Chianese G, Sirignano C, Rigano D, Millán E, Muñoz E, Taglialatela-Scafati O. Anti-inflammatory sesquiterpene lactones from Onopordum illyricum L. (Asteraceae), an Italian medicinal plant. Fitoterapia 2016; 116:61-65. [PMID: 27871974 DOI: 10.1016/j.fitote.2016.11.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/04/2016] [Accepted: 11/08/2016] [Indexed: 11/29/2022]
Abstract
Onopordum illyricum L. is a medicinal plant used in the Mediterranean area as antipyretic for the treatment of respiratory and urinary inflammations and to treat skin ulcers. Repeated chromatographic purification of O. illyricum aerial parts led to the isolation of six known sesquiterpenes, which were evaluated for the inhibition of the pro-inflammatory transcription factors NF-κB and STAT3 and for the activation of the transcription factor Nrf2, which regulates the cellular antioxidant response. Structure-activity relationships were interpreted by the NMR-based cysteamine assay. The sesquiterpene lactone vernomelitensin significantly inhibited NF-κB and STAT3, showing also a significant Nrf2 activation. Accordingly, the cysteamine assay selected vernomelitensin as the most reactive of the isolated sesquiterpenes, identifying the α,β-unsaturated aldehyde moiety as responsible for the higher (re)activity.
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Affiliation(s)
- Carmen Formisano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, I-80131 Naples, Italy
| | - Cinzia Sanna
- Department of Life and Environment Sciences, University of Cagliari, Via Sant'Ignazio, 13, 09123 Cagliari, Italy
| | - Mauro Ballero
- Department of Life and Environment Sciences, University of Cagliari, Via Sant'Ignazio, 13, 09123 Cagliari, Italy
| | - Giuseppina Chianese
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, I-80131 Naples, Italy
| | - Carmina Sirignano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, I-80131 Naples, Italy
| | - Daniela Rigano
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano, 49, I-80131 Naples, Italy.
| | - Estrella Millán
- Maimonides Biomedical Research Institute of Córdoba, Reina Sofía University Hospital, Department of Cell Biology, Physiology and Immunology, University of Córdoba, Avda Menéndez Pidal s/n., 14004, Córdoba, Spain
| | - Eduardo Muñoz
- Maimonides Biomedical Research Institute of Córdoba, Reina Sofía University Hospital, Department of Cell Biology, Physiology and Immunology, University of Córdoba, Avda Menéndez Pidal s/n., 14004, Córdoba, Spain
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Artuso E, Ghibaudi E, Lace B, Marabello D, Vinciguerra D, Lombardi C, Koltai H, Kapulnik Y, Novero M, Occhiato EG, Scarpi D, Parisotto S, Deagostino A, Venturello P, Mayzlish-Gati E, Bier A, Prandi C. Stereochemical Assignment of Strigolactone Analogues Confirms Their Selective Biological Activity. JOURNAL OF NATURAL PRODUCTS 2015; 78:2624-33. [PMID: 26502774 DOI: 10.1021/acs.jnatprod.5b00557] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Strigolactones (SLs) are new plant hormones with various developmental functions. They are also soil signaling chemicals that are required for establishing beneficial mycorrhizal plant/fungus symbiosis. In addition, SLs play an essential role in inducing seed germination in root-parasitic weeds, which are one of the seven most serious biological threats to food security. There are around 20 natural SLs that are produced by plants in very low quantities. Therefore, most of the knowledge on SL signal transduction and associated molecular events is based on the application of synthetic analogues. Stereochemistry plays a crucial role in the structure-activity relationship of SLs, as compounds with an unnatural D-ring configuration may induce biological effects that are unrelated to SLs. We have synthesized a series of strigolactone analogues, whose absolute configuration has been elucidated and related with their biological activity, thus confirming the high specificity of the response. Analogues bearing the R-configured butenolide moiety showed enhanced biological activity, which highlights the importance of this stereochemical motif.
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Affiliation(s)
- Emma Artuso
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Elena Ghibaudi
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Beatrice Lace
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Domenica Marabello
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Daniele Vinciguerra
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Chiara Lombardi
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | | | | | - Mara Novero
- DBIOS, University of Turin , Viale Mattioli 25, 10125 Turin, Italy
| | - Ernesto G Occhiato
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 13, 50019 Sesto Fiorentino, Italy
| | - Dina Scarpi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 13, 50019 Sesto Fiorentino, Italy
| | - Stefano Parisotto
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Annamaria Deagostino
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | - Paolo Venturello
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
| | | | - Ariel Bier
- ARO Volcani Center , Bet Dagan 50250, Israel
| | - Cristina Prandi
- Department of Chemistry, University of Turin , Via P. Giuria 7, 10125 Turin, Italy
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