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Alamri FB, Sobahi TR, Althagbi HI, Abdel-Lateff A, Alfaifi MY, Mohammed AY, Abdel-Latif E, Alarif WM. Bioactivity and molecular docking of lactones isolated from Centaurea pseudosinaica Czerep. Saudi Pharm J 2023; 31:773-782. [PMID: 37228323 PMCID: PMC10203771 DOI: 10.1016/j.jsps.2023.04.017] [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: 03/18/2023] [Accepted: 04/17/2023] [Indexed: 05/27/2023] Open
Abstract
Two cytotoxic sesquiterpene lactones, 17-epichlorohyssopifolin A (1) and chlorjanerin (2), and a monoterpene lactone, loliolide (3) were isolated from Centaurea pseudosinaica. The cytotoxicity of the total extract and terpenoids 1-3 were evaluated against three human cancer cells (HepG2, PC-3, and HT-29), along with the human normal primary epidermal keratinocytes (HEKa) cells. With IC50 values ranging between 0.6 ± 0.04 and 5.0 ± 0.61 μg/mL against HepG2; 0.2 ± 0.01 and 11.9 ± 1.31 μg/mL against PC-3, and 0.04 ± 0.013 and 8.9 ± 0.97 μg/mL against HT-29, the total extract, and lactones 1-3 demonstrated cytotoxic effects. Compound 1 displayed the strongest impact on all cancer cells and a slightly safe effect on the normal cells HEKa. Compound 1 caused accumulation of HepG2 and HT-29 cells in G1 phase as displayed cell cycle analysis. On the other hand, the cell distributions were increased in the S phase in PC-3 cells. Furthermore, 1 caused apoptosis in PC-3 and HePG2 cells with 91.50%, and 79.72 %, respectively. A higher fraction of necrotic cells was observed in HT-29 cells amounting to 23.60%. These results suggested that the promising cytotoxicity exhibited by 1 is brought by the apoptosis induction in the cancer cells, which were evaluated. As the compounds showed antiproliferative effect against the HT-29 cells, the docking simulation was performed aiming at determining how they would interact with the EGFR enzyme, whose PDB: 4I23 is considered one of the two distinct wild types of EGFR enzymes. The antibacterial activity results revealed that 3 showed the most remarkable antibacterial effects, especially against the examined Gram-positive bacteria. The total extract exhibited potent activity against all examined bacteria. The total extract showed a potent antifungal effect against two Candida and two Aspergillus pathogens. The antioxidant activity revealed the potency of the total extract and 3 as antioxidant candidates. The obtained results refer to the importance of Centaurea pseudosinaica as a source of potent antiproliferative agents and the whole plant as an antipathogenic and antioxidant agent.
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Affiliation(s)
- Fatima B. Alamri
- Department of Chemistry, Faculty of Science, King Abdulaziz University, PO. Box 80203, Jeddah 21589, Saudi Arabia
| | - Tariq R. Sobahi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, PO. Box 80203, Jeddah 21589, Saudi Arabia
| | - Hanan I. Althagbi
- Department of Chemistry, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Ahmed Abdel-Lateff
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Mohammed Y. Alfaifi
- Department of Biology, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia
| | - Ayeda Y. Mohammed
- Department of Chemistry, Faculty of Science and Art, Najran University, Najran 11001, Saudi Arabia
| | - Ehab Abdel-Latif
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Walied M. Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, PO. Box 80207, Jeddah 21589, Saudi Arabia
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Bancheva S, Badalamenti N, Bruno M. The essential oil composition of the endemic plant species Centaurea vandasii and chemotaxonomy of section Phalolepis (Asteraceae). Nat Prod Res 2023; 37:1122-1129. [PMID: 34672222 DOI: 10.1080/14786419.2021.1992627] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In the present study, the chemical composition of the essential oil from aerial parts of the endemic plant species, Centaurea vandasii Velen (sect. Phalolepis, Asteraceae), collected in its locus classicus in Rhodope Mts, Bulgaria, was evaluated by GC-MS. The main components of the oil were hexadecanoic acid (18.3%), tetradecanoic acid (13.8%), caryophyllene oxide (12.1%) and germacrene D (8.4%). Furthermore, a complete literature review on the composition of the essential oils of all the other taxa of Centaurea, belonging to section Phalolepis, studied so far, was performed. HCA (Hierarchical Cluster Analysis) and PCA (Principal Component Analyses) were used in order to demonstrate chemotaxonomical variations in the composition of the essential oils.
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Affiliation(s)
| | - Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Palermo, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo, Palermo, Italy
- Centro Interdipartimentale di Ricerca "Riutilizzo bio-based degli scarti da matrici agroalimentari" (RIVIVE), Università di Palermo, Palermo, Italy
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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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Bancheva S, Badalamenti N, Bruno M. The essential oil composition of Centaurea immanuelis-loewii Degen growing wild in Bulgaria and chemotaxonomy of section Acrocentron. Nat Prod Res 2021; 36:5289-5296. [PMID: 34030535 DOI: 10.1080/14786419.2021.1931190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In the present study, the chemical composition of the essential oil from aerial parts of the Balkan endemic, Centaurea immanuelis-loewii Degen (sect. Acrocentron, Asteraceae), collected in Bulgaria was evaluated by GC-MS. The main components of the oil were β-caryophyllene (23.2%), germacrene D (13.7%) and caryophyllene oxide (12.4%). Furthermore, a complete literature review on the composition of the essential oils of all the other taxa of Centaurea, belonging to section Acrocentron, studied so far, was performed and the chemotaxonomical variations in the composition of the essential oils is discussed.
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Affiliation(s)
- Svetlana Bancheva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences 23, Bulgaria Acad, Sofia, Bulgaria
| | - Natale Badalamenti
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo. Viale delle Scienze, Palermo, Italy
| | - Maurizio Bruno
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), Università degli Studi di Palermo. Viale delle Scienze, Palermo, Italy.,Centro Interdipartimentale di Ricerca "Riutilizzo Bio-Based Degli Scarti Da Matrici Agroalimentari" (RIVIVE) Università di Palermo, Palermo, Italy
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TAŞTAN P, ARMAĞAN G, DAĞCI T, KIVÇAK B. Psephellus pyrrhoblepharus Ekstrelerinin Sitotoksik Aktivitesi. KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNIVERSITESI TIP FAKÜLTESI DERGISI 2020. [DOI: 10.17517/ksutfd.788445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Taştan P, Armagan G, Dağcı T, Kıvçak B. Evaluation of cell protection by Psephellus pyrrhoblepharus (Boiss.) Wagenitz extracts in MPP +-induced dopaminergic cell damage. Drug Chem Toxicol 2019; 45:70-76. [PMID: 31474160 DOI: 10.1080/01480545.2019.1659808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Neurodegenerative diseases affect millions of people. Major reasons behind the onset and progression of these diseases are still under investigation. Therefore, any approach that would treat/prevent progression is important. In this study, we aimed to investigate the potential protective effects of Psephellus pyrrhoblepharus (Boiss.) Wagenitz extracts in MPP+-induced dopaminergic cell damage and compare the effectiveness of different extracts (methanol:water (1:1), chloroform and n-hexane). The cells were pretreated with four different concentrations (10, 50, 100, and 200 µg/ml) of methanol:water (1:1), chloroform and n-hexane extracts of P. pyrrhoblepharus following MPP+ treatment for 12 or 24 h. The changes in cell viability were determined using the MTT assay. Additionally, antioxidant activities and total phenolic/flavonoid contents of the extracts were determined with radical scavenging capacity, Folin-Ciocalteu and aluminum chloride assays, respectively. The extracts at selected concentrations were found to be protective in a dose-dependent manner at 12 and 24 h. Nevertheless, the methanol extract of the plant showed the highest protection both at 100 and 200 µg/ml (115.13%±3.98, 121.87%±1.66; p < 0.05) against dopaminergic damage at 24 h. The results showed that selected concentrations were not toxic and did not affect cell proliferation rate. Besides, the chloroform extract was found to have higher antioxidant activity than the other extracts (p < 0.05). The total phenolic and total flavonoid contents were found consistent with antioxidant activities. Our findings support the neuroprotective and antioxidant potential of P. pyrrhoblepharus. However, further studies on identifying the presence of chemicals in P. pyrrhoblepharus extracts which are responsible for protection should be carried out to confirm their therapeutic potential.
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Affiliation(s)
- Pelin Taştan
- Department of Pharmacognosy, Ege University, Faculty of Pharmacy , Izmir , Turkey
| | - Güliz Armagan
- Department of Biochemistry, Ege University, Faculty of Pharmacy , Izmir , Turkey
| | - Taner Dağcı
- Department of Physiology, Ege University, Faculty of Medicine , Izmir , Turkey
| | - Bijen Kıvçak
- Department of Pharmacognosy, Ege University, Faculty of Pharmacy , Izmir , Turkey
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Kamizela A, Gawdzik B, Urbaniak M, Lechowicz Ł, Białońska A, Gonciarz W, Chmiela M. Synthesis, Characterization, Cytotoxicity, and Antibacterial Properties of trans-γ-Halo-δ-lactones. ChemistryOpen 2018; 7:543-550. [PMID: 30038879 PMCID: PMC6055027 DOI: 10.1002/open.201800110] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Indexed: 11/24/2022] Open
Abstract
A new four-step pathway for the synthesis of γ-halo-δ-lactones is described from simple, commercially available substrates: aryl bromides and 3-methyl crotonaldehyde. The halogenolactonization reaction of β,δ-substituted, γ,δ-unsaturated carboxylic acid 4 a-c is regio- and stereoselective and gives only the trans-isomers of lactones 5 a-c, 6 a-c, and 7 a-c. The structures of all synthesized compounds were confirmed by using spectroscopic methods. For bromolactone, containing a naphthyl moiety in the structure, crystallographic analysis was also performed. The lactones were tested for their cytotoxic activity against L929 cell lines (mouse fibroblasts) and antibacterial activity against Escherichia coli strains ATCC 8739 and Staphylococcus aureus ATCC 65389. Compounds 5 a, 5 c, 7 a, and 7 b statistically significantly inhibited the metabolic activity of mouse fibroblasts L929. Compounds 5 b and 6 a were not cytotoxic towards L929 cells, but showed moderate bactericidal properties.
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Affiliation(s)
- Angelika Kamizela
- Institute of ChemistryJan Kochanowski UniversityŚwiętokrzyska 15 G25–406KielcePoland
| | - Barbara Gawdzik
- Institute of ChemistryJan Kochanowski UniversityŚwiętokrzyska 15 G25–406KielcePoland
| | - Mariusz Urbaniak
- Institute of ChemistryJan Kochanowski UniversityŚwiętokrzyska 15 G25–406KielcePoland
| | - Łukasz Lechowicz
- Institute of BiologyJan Kochanowski UniversityŚwiętokrzyska 15 G25–406KielcePoland
| | - Agata Białońska
- Department of ChemistryUniversity of WroclawF. Joliot-Curie 1450–383WrocławPoland
| | - Weronika Gonciarz
- Dept. of Immunology and Infectious BiologyUniversity of LódzBanacha 12/1690–237ŁódźPoland
| | - Magdalena Chmiela
- Dept. of Immunology and Infectious BiologyUniversity of LódzBanacha 12/1690–237ŁódźPoland
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Shakeri A, Masullo M, Bottone A, Asili J, Emami SA, Piacente S, Iranshahi M. Sesquiterpene lactones from Centaurea rhizantha C.A. Meyer. Nat Prod Res 2018; 33:2016-2023. [DOI: 10.1080/14786419.2018.1483926] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences , Mashhad, Iran
| | - Milena Masullo
- Dipartimento di Farmacia, Università degli Studi di Salerno , Salerno, Italy
| | - Alfredo Bottone
- Dipartimento di Farmacia, Università degli Studi di Salerno , Salerno, Italy
| | - Javad Asili
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences , Mashhad, Iran
| | - Seyed Ahmad Emami
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences , Mashhad, Iran
| | - Sonia Piacente
- Dipartimento di Farmacia, Università degli Studi di Salerno , Salerno, Italy
| | - Mehrdad Iranshahi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences , Mashhad, Iran
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Wińska K, Grabarczyk M, Mączka W, Żarowska B, Maciejewska G, Anioł M. Antimicrobial activity of new bicyclic lactones with three or four methyl groups obtained both synthetically and biosynthetically. JOURNAL OF SAUDI CHEMICAL SOCIETY 2018. [DOI: 10.1016/j.jscs.2016.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ye Y, Liu K, Zeng Q, Zeng Q. Antimicrobial activity of puffball(Bovistella radicata) and separation of bioactive compounds. AMB Express 2017; 7:99. [PMID: 28532121 PMCID: PMC5438328 DOI: 10.1186/s13568-017-0402-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 05/10/2017] [Indexed: 11/18/2022] Open
Abstract
Background To test the antimicrobial activity of different extracts and fermentation broth from puffball(Bovistella radicata), the different extracts and fermentation broth of puffball were prepared, the active fraction was investigated by UPLC–UV–MS and semi-preparative chromatograph. Results Through zones of inhibition (ZOI) and minimum inhibitory concentrations (MIC) tests, the supernatant of fermentation possessed best antimicrobial activity in all extracts whose MIC value is 31.2 μg/ml against T. rubrum, T. mentagrophytes, S. aureus and P. aeruginosa. And ZOI value is 29.01, 21.02, 35.02, 28.01 mm against T. rubrum, T. mentagrophytes, S. aureus and P. aeruginosa. Then we compare the puffball fermentation supernatant with blank contrast by LC–MS. There are the characteristic peaks named PBR-1 and PBR-2 with the puffball fermentation supernatant, the separation of compound PBR-1 and PBR-2 was done on semi-preparative C18 column and the MIC and ZOI of compound PBR-1 and PBR-2 are 15.6 μg/ml and 34 mm with the antifungal test. Conclusions The fermentation supernatant and compound PBR-1 and PBR-2 have promising antifungal activity against T. rubrum and T. mentagrophytes.
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Sokovic M, Ciric A, Glamoclija J, Skaltsa H. Biological Activities of Sesquiterpene Lactones Isolated from the Genus Centaurea L. (Asteraceae). Curr Pharm Des 2017; 23:2767-2786. [DOI: 10.2174/1381612823666170215113927] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/07/2017] [Indexed: 01/02/2023]
Affiliation(s)
- Marina Sokovic
- Institute for Biological Research, “Siniša Stanković”, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia
| | - Ana Ciric
- Department of Plant Physiology, Mycological Laboratory, Institute for Biological Research, University of Belgrade, Bulevar despota Stefana 142, 11 000 Belgrade, Serbia
| | - Jasmina Glamoclija
- Department of Plant Physiology, Mycological Laboratory, Institute for Biological Research, University of Belgrade, Bulevar despota Stefana 142, 11 000 Belgrade, Serbia
| | - Helen Skaltsa
- National & Kapodistrian University of Athens, School of Pharmacy, Department of Pharmacognosy and Chemistry of Natural Products, Panepistimiopolis, Zografou, 157 71, Athens, Greece
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Fang X, Xu XK, Wang GW, Zeng RT, Tian XH, Shi ZR, Zhuo ZG, Shen YH, Zhang WD. Guaianolide sesquiterpenoids from Ainsliaea yunnanensis. PHYTOCHEMISTRY 2017; 139:47-55. [PMID: 28411482 DOI: 10.1016/j.phytochem.2017.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 05/11/2023]
Abstract
Six previously undescribed C17-guaianolides, a previously undescribed guaianolide alkaloid, and two previously undescribed guaianolides as well as 10 known guaianolides were obtained from an ethanol extract of Ainsliaea yunnanensis Franch. The chemical structures of all previously reported sesquiterpenoids were determined by extensive NMR spectroscopic analysis in combination with a modified Mosher's method. All isolates were in vitro screened for inhibitory effect against nitric oxide release in RAW 264.7 macrophages stimulated by LPS. Zaluzanin C remarkably inhibited the production of nitric oxide with an IC50 value of 6.54 μM.
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Affiliation(s)
- Xin Fang
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Xi-Ke Xu
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Guo-Wei Wang
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Ren-Tao Zeng
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Xin-Hui Tian
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Zhi-Ran Shi
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Zhi-Guo Zhuo
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China
| | - Yun-Heng Shen
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China.
| | - Wei-Dong Zhang
- Department of Phytochemistry, Second Military Medical University, Shanghai 200433, People's Republic of China; Shanghai Institute of Pharmaceutical Industry, Shanghai 200400, People's Republic of China.
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Abstract
The ethanol extract of Centaurea aegyptiaca aerial parts afforded two new chlorinated bioactive guaianolides, cenegyptin A (1) and cenegyptin B (2), in addition to four known sesquiterpenes (3-6). Their identities were established on the basis of their spectral data. The cytotoxicity (IC50, μM) of compounds 1-6 were evaluated against hepatic (HEPG2) and laryngeal (HEP2) carcinoma cell lines in comparison with normal fibroblasts (BHK). Compound 1 showed cytotoxic activity against HEPG2 and HEP2 with IC50 values of 7.2 ± 0.04 and 7.5 ± 0.02, respectively. However, compound 2 exhibited only a limited toxicity against both cell lines.
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Affiliation(s)
- Hanan G. Sary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Health Sciences Center, Kuwait University, Safat 13110, Kuwait
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | | | - Khaled Y. Orabi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Health Sciences Center, Kuwait University, Safat 13110, Kuwait
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Maggio A, Riccobono L, Bancheva S, Bruno M, Senatore F. Chemical Composition of the Essential Oil of the Local Endemics Centaurea davidovii and C. parilica (Asteraceae, sect. Lepteranthus) from Bulgaria. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In the present study the chemical compositions of the essential oils from aerial parts of Centaurea davidovii Urum. and C. parilica Stoj. & Stef., both endemic to Bulgaria, were evaluated by GC and GC-MS. The main components of C. davidovii were β-eudesmol (13.9%), spathulenol (13.3%), caryophyllene oxide (10.1%) and ( Z)-phytol (5.4%). The main components of C parilica were hexadecanoic acid (39.2%), ( Z, Z)-9,12-octadecadienoic acid (11.9%), caryophyllene oxide (6.8%) and spathulenol (6.6%). In order to compare the essential oils composition of these taxa and of related species a PCA analysis was carried out.
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Affiliation(s)
- Antonella Maggio
- Department STEBICEF, University of Palermo, Viale delle Scienze, Parco d'Orleans II - 90128 Palermo, Italy
| | - Luana Riccobono
- Department STEBICEF, University of Palermo, Viale delle Scienze, Parco d'Orleans II - 90128 Palermo, Italy
| | - Svetlana Bancheva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113-Sofia, Bulgaria
| | - Maurizio Bruno
- Department STEBICEF, University of Palermo, Viale delle Scienze, Parco d'Orleans II - 90128 Palermo, Italy
| | - Felice Senatore
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano, 49 - 80131 Naples, Italy
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Bruno M, Bancheva S, Rosselli S, Maggio A. Sesquiterpenoids in subtribe Centaureinae (Cass.) Dumort (tribe Cardueae, Asteraceae): distribution, (13)C NMR spectral data and biological properties. PHYTOCHEMISTRY 2013; 95:19-93. [PMID: 23948259 DOI: 10.1016/j.phytochem.2013.07.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 07/05/2013] [Accepted: 07/05/2013] [Indexed: 05/22/2023]
Abstract
Asteraceae Bercht. & J. Presl is one of the biggest and most economically important plant families. The taxonomy and phylogeny of Asteraceae is rather complex and according to the latest and most reliable taxonomic classification of Panero & Funk, based on the analysis of nine chloroplast regions, the family is divided into 12 subfamilies and 35 tribes. One of the largest tribes of Asteraceae is Cardueae Cass. with four subtribes (Carlininae, Echinopinae, Carduinae and Centaureinae) and more than 2500 species. Susanna & Garcia-Jacas have organized the genera of Centaureinae (about 800 species) into seven informal groups, which recent molecular studies have confirmed: 1. Basal genera; 2. Volutaria group; 3. Rhaponticum group; 4. Serratula group; 5. Carthamus group; 6. Crocodylium group; 7. Centaurea group. This review summarizes reports on sesquiterpenoids from the Centaureinae subtribe of the Asteraceae family, as well as the (13)C NMR spectral data described in the literature. It further reviews studies concerning the biological activities of these metabolites. For this work, literature data on sesquiterpenes from the Centaureinae subtribe were retrieved with the help of the SciFinder database and other similar data banks. All entries from 1958 until the end of 2011 were considered. This review is addressed to scientists working in the metabolomics field such as chemists, botanists, etc., the spectroscopic data reported make this work a good tool for structural elucidation, the biological section gives useful information to those who wish to study the structure activity relationships.
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Affiliation(s)
- Maurizio Bruno
- STEBICEF, Section of Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy.
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Milošević Ifantis T, Solujić S, Pavlović-Muratspahić D, Skaltsa H. Secondary metabolites from the aerial parts of Centaurea pannonica (Heuff.) Simonk. from Serbia and their chemotaxonomic importance. PHYTOCHEMISTRY 2013; 94:159-170. [PMID: 23827325 DOI: 10.1016/j.phytochem.2013.05.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/23/2013] [Accepted: 05/29/2013] [Indexed: 06/02/2023]
Abstract
The non polar extract of Centaurea pannonica (Heuff.) Simonk., growing wild in Serbia, was studied and twenty-five compounds including 14 sesquiterpene lactones, 7 flavonoids, 3 lignans and 1 phenylpropanoid glycoside were isolated. All compounds were isolated for the first time from this species. Among them, one germacranolide 2α-hydroxy, 8-dehydroxy 15-O-methacrylate salonitenolide (1) and two guaianolides 2α,8α-dihydroxy-dehydrocostus lactone (2) and pannonin (3) are new natural compounds. The structures of the compounds were established on the basis of spectroscopic analyses (UV, IR, HREIMS and 1D & 2D NMR). The chemical profile of C. pannonica, which belongs to the "Centaurea jacea" group, was compared to previously studied taxa of the same group and used to assess the phylogenetic relationships in the group.
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Affiliation(s)
- Tanja Milošević Ifantis
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece
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Anatomical characteristics and antioxidant ability of Centaurea sadleriana reveals an adaptation towards drought tolerance. Open Life Sci 2013. [DOI: 10.2478/s11535-013-0174-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe lamina, main vein and peduncle anatomical properties of Centaurea sadleriana Janka plants from two populations, were examined using light and scanning electron microscopy. The indumentum was comprised of glandular and non-glandular trichomes of two types. The leaves were amphistomatic, isolateral, with strongly developed palisade tissue. Secretory ducts were observed along the phloem or sclerenchyma of large vascular bundles. Collenchyma alternated with chlorenchyma in the main vein and peduncle. Large groups of strongly lignified sclerenchyma were present along the phloem of peduncle vascular bundles. These features, together with thickened walls of epidermal cells and cuticle, numerous trichomes and thick-walled parenchyma in the perimedullar zone, were perceived as a xeromorphic peduncle structural adaptation. Non-enzymatic antioxidant compounds of phenolic origin were detected in small amounts and their respective content was higher in leaves compared to inflorescences. Compounds of phenolic orgin showed positive correlation with total potenial of antioxidant activity indicated by the DPPH assay. Greater total quantity of polyphenols and tannins was detected in leaves of plants from Zobnatica locality, while leaves of plants from Rimski Sanac were characterized by higher content of total flavonoids and proantocyanidins. Phytochemical analysis showed that dominant secondary biomolecules in inflorescences were phenolic pigments including anthocyanins and leucoanthocyanins, and free quinones in leaves.
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Bioactive Volatile Content of the Stem and Root ofCentaurea carduiformisDC. subsp.carduiformisvar.carduiformis. J CHEM-NY 2013. [DOI: 10.1155/2013/125286] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Several species ofCentaurea, biennial (or more rarely perennial) plants which belong to the Asteraceae family, possess medicinal properties and are currently used in phytotherapy. In the present study, antiproliferative activity of hexane extract from stems and roots ofCentaurea carduiformisDC. subsp.carduiformisvar.carduiformis(CCS and CCR) on Vero cells (African green monkey kidney), C6 cells (Rat Brain tumor cells), and HeLa cells (human uterus carcinoma) was investigatedin vitro. Antiproliferative effect of the extract was tested at 500 μg/mL and 1000 μg/mL using BrDu Cell Proliferation ELISA. The hexane extract was significantly inhibited proliferation of Vero, HeLa, and C6 cancer cell lines with absorbance values. The extract of CCS and CCR showed the highest activity against the Vero, HeLa, and C6 cell lines at 500 μg/mL and 1000 μg/mL.
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Salla M, Fakhoury I, Saliba N, Darwiche N, Gali-Muhtasib H. Synergistic anticancer activities of the plant-derived sesquiterpene lactones salograviolide A and iso-seco-tanapartholide. J Nat Med 2012; 67:468-79. [PMID: 22976170 DOI: 10.1007/s11418-012-0703-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Accepted: 08/08/2012] [Indexed: 10/27/2022]
Abstract
We have previously shown that the two sesquiterpene lactones, salograviolide A (Sal A) and iso-seco-tanapartholide (TNP), isolated from the Middle Eastern indigenous plants Centaurea ainetensis and Achillea falcata, respectively, possess selective antitumor properties. Here, we aimed to assess the anticancer effects of the separate compounds and their combination, study their potential to generate reactive oxygen species (ROS), and investigate their underlying antitumor mechanisms in human colon cancer cell lines. Cells were treated with Sal A and TNP alone or in combination, and cell viability, cell cycle profile, apoptosis, ROS generation and changes in protein expression were monitored. Sal A and TNP in combination caused 80% decrease in HCT-116 and DLD-1 cell viability versus only 25% reduction when the drugs were used separately. The antitumor mechanism involved triggering ROS-dependent apoptosis as well as disruption of the mitochondrial membrane potential. Further studies showed that apoptosis by the Sal A and TNP combination was caspase-independent and that ERK, JNK and p38 of the serine/threonine MAPKs signaling pathway were involved in the cell death mechanism. Taken together, our data suggest that the combination of Sal A and TNP may be of therapeutic interest against colon cancer.
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Affiliation(s)
- Mohamed Salla
- Department of Biology, American University of Beirut, Riad El-Solh, Beirut, Lebanon.
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Nacer A, Merza J, Kabouche Z, Rhouati S, Boustie J, Richomme P. Sesquiterpene lactones from Centaurea tougourensis. BIOCHEM SYST ECOL 2012. [DOI: 10.1016/j.bse.2011.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sesquiterpene lactones: antispasmodic principles of the freshwater algae Hydrodictyon reticulatum. Med Chem Res 2012. [DOI: 10.1007/s00044-011-9601-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Antimicrobial activity of secondary metabolites isolated from Centaurea spruneri Boiss.& Heldr. JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2011. [DOI: 10.2298/jsc100127008c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Two coumarins, scopoletin (1) and isoscopoletin (2), two simple phenolic
acids, protocatechuic acid (3) and isovanillic acid (4) and one flavonoid,
eriodictyol (5) were isolated from the aerial parts of Centaurea spruneri.
The structure of the compounds was established by spectroscopic methods. The
in vitro antimicrobial activity of the isolated compounds was tested against
eight bacteria and eight fungal species, using a microdilution method. All
compounds tested showed moderate antibacterial and antifungal activities.
Their minimum inhibitory concentrations were in the range 0.655 - 2.38 ?mol
ml-1 and their minimal bactericidal concentrations ranged from 0.694 to 4.15
?mol ml-1 against the tested bacterial species. All compounds showed
fungistatic activity at 0.259 - 2.38 ?mol ml-1 and fungicidal at 0.69 - 2.6
?mol ml-1 against all fungi tested.
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Grabarczyk M, Białońska A. Biotransformations of bicyclic trimethylcyclohexane chloro-, bromo- and iodolactones using fungal strains. BIOCATAL BIOTRANSFOR 2010. [DOI: 10.3109/10242422.2010.538688] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Formisano C, Senatore F, Bancheva S, Bruno M, Maggio A, Rosselli S. Volatile Components of Centaurea Bracteata and C. Pannonica subsp. Pannonica growing wild in Croatia. Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000501027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper reports on the volatile components of oils from the aerial parts (CBA) and roots (CBR) of Centaurea bracteata Scop. and aerial parts of C. pannonica (Heuffel) Simonkai subsp. pannonica (CPA), two Asteraceae growing wild in Croatia. The volatile components, obtained by hydrodistillation, were determined by GC-MS analysis. The yields (w/w) of the dried oils were 0.10% (CBA), 0.22% (CBR) and 0.09% (CPA), respectively. A total of 91 compounds were identified accounting for 91.1%, 93.3% and 87.9% of the total oil for CBA, CBR and CPA, respectively. All the samples were characterized mainly by hydrocarbons (7.1-34.1%), fatty acids (9.7-45.9%), and oxygenated sesquiterpenes (15.2-16.6%). The major components of the samples were hexadecanoic acid (8.1-31.1%), nonacosane (0.6-13.4%) and caryophyllene oxide (4.5-11.9%). Monoterpenes, both hydrocarbons and oxygenated, were either absent or present in low amounts in all the oils. The similarity in the oil contents is consistent with the two species being placed in the same section, Jacea.
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Affiliation(s)
- Carmen Formisano
- Department of Chemistry of Natural Products, University of Naples “Federico II”, Via D. Montesano, 49 - 80131 Naples, Italy
| | - Felice Senatore
- Department of Chemistry of Natural Products, University of Naples “Federico II”, Via D. Montesano, 49 - 80131 Naples, Italy
| | - Svetlana Bancheva
- Institute of Botany, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113-Sofia, Bulgaria
| | - Maurizio Bruno
- Department of Organic Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II- 90128 Palermo, Italy
| | - Antonella Maggio
- Department of Organic Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II- 90128 Palermo, Italy
| | - Sergio Rosselli
- Department of Organic Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II- 90128 Palermo, Italy
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Ugur A, Sarac N, Ceylan O, Emin Duru M. Antimicrobial activity and chemical composition of endemic Centaurea cariensis subsp. niveo-tomentosa. Nat Prod Res 2010; 24:861-72. [PMID: 20461631 DOI: 10.1080/14786410903315127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The antimicrobial activity of the n-hexane, chloroform, ethyl acetate and ethyl alcohol extracts of the aerial parts of Centaurea cariensis subsp. niveo-tomentosa was evaluated against microorganisms, including multi-antibiotic resistant bacteria, using the paper disc diffusion method. The chemical composition of the chloroform extract of this plant was determined by gas chromatography and gas chromatography-mass spectrometry. The chloroform extract exhibited significant antibacterial activity for all bacteria tested, which are important pathogens. The major compounds of the chloroform extract were caryophyllene oxide (20.79%), spathulenol (14.73%), beta-eudesmol (9.27%), beta-caryophyllene (6.84%), n-cetylalcohol (6.27%), cubenol (5.23%) and cis-alpha-santalol (4.67%), respectively.
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Affiliation(s)
- Aysel Ugur
- Department of Biology, Faculty of Arts and Sciences, Mugla University, 48121 Kotekli-Mugla, Turkey.
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Formisano C, Senatore F, Bancheva S, Bruno M, Maggio A, Rosselli S. Volatile Components of Aerial Parts of Centaurea nigrescens and C. stenolepis Growing Wild in the Balkans. Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000500222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The volatile constituents of the aerial parts of Centaurea nigrescens Willd, collected in Romania and of two samples of C. stenolepis A. Kerner from Bulgaria and Romania were obtained by hydrodistillation and analyzed. The main components of C. stenolepis were caryophyllene oxide (6.9-15.6%), hexahydrofarnesyl acetone (6.5-4.4%), heptacosane (6.0-4.9%) and p-vinyl guiacol (4.3-5.0%). The main components of C. nigrescens were caryophyllene oxide (9.9%), β-eudesmol (9.5%), spathulenol (7.6%), heptacosane (6.1%) and p-vinyl guiacol (5.5%). The chemotaxonomic significance with respect to their co-location in Sections Lepteranthus and Nigrescentes, respectively, is discussed.
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Affiliation(s)
- Carmen Formisano
- Department of Chemistry of Natural Products, University of Naples “Federico II”, Via D. Montesano, 49 - 80131 Naples, Italy
| | - Felice Senatore
- Department of Chemistry of Natural Products, University of Naples “Federico II”, Via D. Montesano, 49 - 80131 Naples, Italy
| | - Svetlana Bancheva
- Institute of Botany, Bulgarian Academy of Sciences, Acad. G. Bonchev Str. 23, 1113-Sofia, Bulgaria
| | - Maurizio Bruno
- Department of Organic Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II- 90128 Palermo, Italy
| | - Antonella Maggio
- Department of Organic Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II- 90128 Palermo, Italy
| | - Sergio Rosselli
- Department of Organic Chemistry, University of Palermo, Viale delle Scienze, Parco d'Orleans II- 90128 Palermo, Italy
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Csupor D, Blazsó G, Balogh A, Hohmann J. The traditional Hungarian medicinal plant Centaurea sadleriana Janka accelerates wound healing in rats. JOURNAL OF ETHNOPHARMACOLOGY 2010; 127:193-5. [PMID: 19799977 DOI: 10.1016/j.jep.2009.09.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Revised: 09/18/2009] [Accepted: 09/22/2009] [Indexed: 11/17/2022]
Affiliation(s)
- Dezso Csupor
- Department of Pharmacognosy, University of Szeged, Eötvös u 6, H-6720 Szeged, Hungary.
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Ugur A, Duru ME, Ceylan O, Sarac N, Varol O, Kivrak I. Chemical composition, antimicrobial and antioxidant activities ofCentaurea ensiformisHub.-Mor. (Asteraceae), a species endemic to Mugla (Turkey). Nat Prod Res 2009; 23:149-67. [DOI: 10.1080/14786410801915770] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Aysel Ugur
- a Department of Biology , Faculty of Arts and Sciences, Mugla University , Kotekli-Mugla, Turkey
| | - Mehmet Emin Duru
- b Department of Chemistry , Faculty of Arts and Sciences, Mugla University , Kotekli-Mugla, Turkey
| | - Ozgur Ceylan
- c Department of Biology , Faculty of Arts and Sciences, Mugla University , Kotekli-Mugla, Turkey
| | - Nurdan Sarac
- d Medical Laboratory Program , Vocational School of Health Services, Mugla University , Marmaris-Mugla, Turkey
| | - Omer Varol
- a Department of Biology , Faculty of Arts and Sciences, Mugla University , Kotekli-Mugla, Turkey
| | - Ibrahim Kivrak
- b Department of Chemistry , Faculty of Arts and Sciences, Mugla University , Kotekli-Mugla, Turkey
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Al-Saghir J, Al-Ashi R, Salloum R, Saliba NA, Talhouk RS, Homaidan FR. Anti-inflammatory properties of Salograviolide A purified from Lebanese plant Centaurea ainetensis. Altern Ther Health Med 2009; 9:36. [PMID: 19775456 PMCID: PMC2761300 DOI: 10.1186/1472-6882-9-36] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Accepted: 09/23/2009] [Indexed: 11/10/2022]
Abstract
BACKGROUND Anti-inflammatory activities of medicinal plants have largely been attributed to their content of sesquiterpene lactones (SLs). SLs are predominantly found in the sunflower family Asteraceae and have been isolated from many plants of this family, particularly Centaurea. The anti-inflammatory activities of extract of Centaurea ainetensis, a Lebanese endemic plant, and the isolated active molecule were assessed for their potential ant-inflammatory activities. METHODS Plant extract from Centaurea ainetensis, and the isolated active ingredient Salograviolide A (SA), a sesquiterpene lactones guaianolide, were used for the study. Western blotting and electrophoretic mobility shift assays were used to test the effects of the plant extract and SA on interleukin-1 (IL-1) induced increase in cyclooxygenase-2 (COX-2) levels and in nuclear factor-kappaB (NF-kappaB) translocation in an intestinal epithelial cell (IEC) of inflammation. Their effects on inflammation score and cytokine levels were also studied in an iodoacetoamide-induced rat model of inflammation. RESULTS Plant extract and SA were shown to reverse the effects observed by IL-1 on COX-2 levels and NF-kappaB translocation in IEC. SA decreased the level of inflammatory cytokines and the level of inflammation in the animal model. CONCLUSION These findings suggest that SA may be useful in the development of natural therapies for inflammatory diseases.
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Senatore F, Formisano C, Raio A, Bellone G, Bruno M. Volatile components from flower-heads ofCentaurea nicaeensisAll.,C.parlatorisHelder andC. solstitialisL. ssp.schouwii(DC.) Dostál growing wild in southern Italy and their biological activity. Nat Prod Res 2008; 22:825-32. [DOI: 10.1080/14786410500410719] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Formisano C, Rigano D, Senatore F, Çelik S, Bruno M, Rosselli S. Volatile constituents of aerial parts of three endemicCentaureaspecies from Turkey:Centaurea amanicolaHub.-Mor.,CentaureaconsanguineaDC. andCentaurea ptosimopappaHayek and their antibacterial activities. Nat Prod Res 2008; 22:833-9. [DOI: 10.1080/14786410701218259] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Quantitative analysis of sesquiterpene lactone cnicin in seven Centaurea species wild-growing in Serbia and Montenegro using 1H-NMR spectroscopy. JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2007. [DOI: 10.2298/jsc0712275t] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
1H-NMR spectroscopy was applied for the quantitative analysis of cnicin, a bioactive germacranolide type sesquiterpene lactone, in the aerial parts of seven wild-growing Centaurea species collected in Serbia and Montenegro. The analysis was performed by comparison of the integral of the one-proton signal of cnicin (H-13, ? 5.75) with that of the two-proton singlet ( ? 6.98) of 2,6-bis(1,1-dimethylethyl)-4-methylphenol (BHT), used as the internal standard. Cnicin, within the concentration range 1.06-6.12 mg/g, calculated per weight of the fresh plant material was detected in six species, the exception being C. salonitana. This method allows the rapid and simple quantification of cnicin without any pre-purification step.
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A simulation study of the interaction of sulfhydryl nucleophiles with several antifungal sesquiterpene lactones isolated from Greek Centaurea sp. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.theochem.2005.10.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Koukoulitsa C, Geromichalos GD, Skaltsa H. VolSurf analysis of pharmacokinetic properties for several antifungal sesquiterpene lactones isolated from Greek Centaurea sp. J Comput Aided Mol Des 2005; 19:617-23. [PMID: 16254688 DOI: 10.1007/s10822-005-9018-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2005] [Accepted: 09/20/2005] [Indexed: 11/25/2022]
Abstract
Sesquiterpene lactones are terpenoid compounds characteristic of the Asteraceae (Compositae) possessing a variety of biological activities, such as cytotoxic, antitumor, antibacterial, and antifungal. The prediction of the pharmacokinetic profile of several antifungal sesquiterpene lactones, isolated from Greek taxa of Centaurea sp., was undertaken in this study using the VolSurf procedure. The molecules were projected on the following pre-calculated ADME models: Caco-2 cell permeability, plasma protein affinity, blood-brain barrier permeation and thermodynamic solubility. The in silico projection revealed a non optimal pharmacokinetic profile for the studied compounds. ADME in silico screening of a semi-synthetic derivatives virtual library has been performed in order to optimize the pharmacokinetic properties. A number of derivatives were proposed as it was predicted to have higher Caco-2 cell permeability, while the pharmacokinetic behaviour regarding BBB penetration, protein binding and solubility was mainly preserved.
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Affiliation(s)
- Catherine Koukoulitsa
- Department of Pharmacognosy & Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis, Zografou, GR-157 71, Athens, Greece.
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A new guaianolide and other sesquiterpene lactones from Centaurea acaulis L. (Asteraceae). BIOCHEM SYST ECOL 2005. [DOI: 10.1016/j.bse.2005.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Barbour EK, Al Sharif M, Sagherian VK, Habre AN, Talhouk RS, Talhouk SN. Screening of selected indigenous plants of Lebanon for antimicrobial activity. JOURNAL OF ETHNOPHARMACOLOGY 2004; 93:1-7. [PMID: 15182897 DOI: 10.1016/j.jep.2004.02.027] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2003] [Revised: 02/02/2004] [Accepted: 02/10/2004] [Indexed: 05/24/2023]
Abstract
The objective of this study is to test in vitro the antimicrobial efficacy of 39 water and 39 methanol extracts derived from different parts of 27 indigenous wild plant species that have been commonly used in Lebanese folk medicine. The antimicrobial efficacy was determined using the single disk diffusion method, with 10 and 20 microl load extract volume per disc. Nine test microorganisms were used namely, Escherichia coli, Proteus sp., Pseudomonas aeruginosa, Shigella dysenteria, Salmonella enteritidis, Salmonella typhi, Staphylococcus aureus, Streptococcus faecalis, and Candida albicans. Only one water extract out of 39 derived from whole plant of Alchemilla diademata showed an antimicrobial activity against Staphylococcus aureus. The percentage of test organisms that were susceptible to 10 most efficacious methanol plant extracts (20 microl/disc) were as follows: Achillea damascena whole plant (88.8%), Anthemis scariosa flower (88.8%), Cirsium sp. whole plant (88.8%), Centaurea ainetensis flowers (88.8%), Hieracium sp. whole plant (88.8%), Origanum libanoticum whole plant (99.9%), Ranunculus myosuroudes whole plant (88.8%), Nepata curviflora leaf (88.8%), Nepata curviflora stem, and Verbascum leptostychum flower (99.9%). The minimum inhibitory concentration (MIC) was determined on plant extracts that showed high efficacy against the test organisms. The chance to find antimicrobial activities was more apparent in methanol rather than water extracts of the same indigenous plants of Lebanon, with higher antimicrobial activities in 20 microl methanol extract-discs in comparison to that present in the 10 microl discs (P < 0.05).
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Affiliation(s)
- Elie K Barbour
- Department of Animal Science, Faculty of Agricultural and Food Sciences, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon.
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Tešević V, Milosavljević S, Vajs V, Janaćković P, Popsavin M. Dithiophenes and other constituents of roots of Centaurea nicolai. BIOCHEM SYST ECOL 2003. [DOI: 10.1016/s0305-1978(02)00067-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ferreira M, Alvarenga S, Macari P, Rodrigues G, Emerenciano V. A program for terpenoid skeleton prediction based on botanical information. BIOCHEM SYST ECOL 2003. [DOI: 10.1016/s0305-1978(02)00066-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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