1
|
Liang C, Ndi C, Semple SJ, Buirchell B, Coriani S, Møller BL, Staerk D. Eremane, viscidane and isozizaene diterpenoids from the leaves of Eremophila rigida and their absolute configurations. PHYTOCHEMISTRY 2024; 219:113972. [PMID: 38211848 DOI: 10.1016/j.phytochem.2024.113972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 01/02/2024] [Accepted: 01/06/2024] [Indexed: 01/13/2024]
Abstract
Previously undescribed eremane, viscidane, and isozizaene diterpenoids, eremorigidanes A-F, along with six known O-methylated flavonoids and three known triterpenoids were isolated and identified from the leaves of Eremophila rigida Chinnock by combined use of high-resolution PTP1B inhibition profiling, semipreparative- and analytical-scale HPLC separations, HPLC-PDA-HRMS analysis, and NMR spectroscopy. The absolute configuration of the unreported diterpenoids were determined by comparison of their experimental and calculated ECD spectra as well as by biosynthetic arguments. All isolates were evaluated for their PTP1B inhibitory activities, which revealed the flavonoid penduletin (3) to show inhibition with an IC50 value of 18.3 μM, and the triterpenoids 3,4-seco-olean-12-ene-3,28-dioic acid (15), oleanolic acid (16), and 3-oxo-oleanolic acid (17) to show inhibition with IC50 values of 55.7, 9.9, and 6.3 μM, respectively. The preliminary structure-activity relationship (SAR) of isolated flavonoids and triterpenoids is discussed. Plausible biosynthetic steps involved in eremane and isozizaene metabolism are presented and discussed.
Collapse
Affiliation(s)
- Chao Liang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen, Denmark
| | - Chi Ndi
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Frome Road, Adelaide, 5000, Australia
| | - Susan J Semple
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Frome Road, Adelaide, 5000, Australia
| | - Bevan Buirchell
- Wise Owl Consulting, Como, Western Australia, 6152, Australia
| | - Sonia Coriani
- Department of Chemistry, Technical University of Denmark, Kemitorvet Building 207, DK-2800, Kongens Lyngby, Denmark
| | - Birger Lindberg Møller
- Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871, Frederiksberg C, Denmark
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen, Denmark.
| |
Collapse
|
2
|
Tüfekçi AR, Demirtaş İ, Akşit H, Arslan Ş, Kocabıyık K, Zeybek S, Ozen T, Köksal E. Two new compounds from endemic Centaurea paphlagonica (Bornm.) Wagenitz and their cytotoxic activities. Chem Biol Drug Des 2024; 103:e14409. [PMID: 38030403 DOI: 10.1111/cbdd.14409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/04/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023]
Abstract
Centaurea paphlagonica (Bornm.) Wagenitz is an endemic plant in Turkey. Pyrocatechol, vanillic acid, 3,4-dihydroxy benzoic acid, 5-O-caffeoylshikimic acid, tamarixetin, chlorogenic acid methyl ester, quercetin, 1,3-dicaffeoylquinic acid, tamarixetin-7-O-β-D-glucopyranoside, quercimetrin, daucosterin, paphlagonicanin B, tamarixetin-7-O-β-rutinoside, rutin, chlorogenic acid, isoorientin, orientin, 3-O-feruloylquinic acid, quercetagetin-3-methyl ether 6-O-β-glucopyranoside, diosmetin 6-C-β-glucopyranoside, quercetagetin 4'-methyl ether 7-O-β-glucopyranoside, paphlagonicanin A, nepetin, cirsiliol, desacylcynaropicrin, and 8α-O-(2',3'-dihydroxyisobutyryl) desacylcynaropicrin were isolated from both flower and aerial parts of C. paphlagonica. These compounds were identified using 1D and 2D NMR methods and ESI-MS. The MTT assay assessed the antiproliferative activities of all isolated (known and new compounds) compounds on Caco-2, LNCaP, A549, HeLa, and HEK-293 cell lines. The 8α-O-(2',3'-dihydroxyisobutyryl) desacylcynaropicrin demonstrated the highest activity against CaCo-2 and HeLa cancer cell lines.
Collapse
Affiliation(s)
- Ali Rıza Tüfekçi
- Department of Chemistry, Faculty of Natural Sciences, Çankırı Karatekin University, Çankırı, Turkey
| | - İbrahim Demirtaş
- Department of Biochemistry, Faculty of Arts and Sciences, Iğdır University, Iğdır, Turkey
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ondokuz Mayıs University, Samsun, Turkey
| | - Hüseyin Akşit
- Department of Analytical Chemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Şevki Arslan
- Department of Biology, Faculty of Arts and Sciences, Pamukkale University, Denizli, Turkey
| | - Kübra Kocabıyık
- Department of Biology, Faculty of Arts and Sciences, Pamukkale University, Denizli, Turkey
| | - Sibel Zeybek
- Department of Biology, Faculty of Arts and Sciences, Pamukkale University, Denizli, Turkey
| | - Tevfik Ozen
- Department of Chemistry, Faculty of Science, Ondokuz Mayıs University, Samsun, Turkey
| | - Ekrem Köksal
- Department of Chemistry, Faculty of Science and Arts, Erzincan Binali Yıldırım University, Erzincan, Turkey
| |
Collapse
|
3
|
Liang C, Zang J, Ndi C, Semple SJ, Buirchell B, Coriani S, Møller BL, Staerk D. Identification of new PTP1B-inhibiting decipiene diterpenoid esters from Eremophila clarkei by high-resolution PTP1B inhibition profiling, enzyme kinetics analysis, and molecular docking. Bioorg Chem 2023; 139:106744. [PMID: 37517158 DOI: 10.1016/j.bioorg.2023.106744] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/03/2023] [Accepted: 07/17/2023] [Indexed: 08/01/2023]
Abstract
In this study, an extract of the leaves of Eremophila clarkei Oldfield & F.Muell. showed protein tyrosine phosphatase 1B (PTP1B) inhibitory activity with an IC50 value of 33.0 μg/mL. The extract was therefore investigated by high-resolution PTP1B inhibition profiling to pinpoint the constituents responsible for the activity. Subsequent isolation and purification using analytical-scale HPLC led to identification of eight previously undescribed decipiene diterpenoids, eremoclarkanes A-H, as well as eremoclarkic acid, a biogenetically related new phenolic acid. In addition, one known decipiene diterpenoid and ten known O-methylated flavonoids were isolated. The structures of the isolated compounds were elucidated by extensive analysis of their HRMS and 1D and 2D NMR spectra. The absolute configuration of decipiene diterpenoids was determined by comparison of experimental and calculated ECD spectra. The flavonoid hispidulin (2b) and the four decipiene diterpenoids 13a, 13b, 13f, and 14b exhibited PTP1B inhibitory activity with IC50 values ranging from 22.8 to 33.6 μM. This is the first report of PTP1B inhibitory activity of decipienes, and enzyme kinetics revealed that 13a and 13b are competitive inhibitors of PTP1B, whereas 13f and 14b displayed mixed-type-mode inhibition of PTP1B. Finally, molecular docking indicated that 13a, 13b, 13f, and 14b showed comparable binding affinity towards the active and/or allosteric site of PTP1B enzyme. Structure-activity relationship (SAR) of the identified O-methylated flavonoids and decipiene diterpenoids towards PTP1B is discussed. Plausible enzymatic and photochemically driven routes for the formation of the decipienes and conversion products thereof are presented and discussed.
Collapse
Affiliation(s)
- Chao Liang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Jie Zang
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Chi Ndi
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Frome Road, Adelaide 5000, Australia
| | - Susan J Semple
- Quality Use of Medicines and Pharmacy Research Centre, Clinical and Health Sciences, University of South Australia, Frome Road, Adelaide 5000, Australia
| | - Bevan Buirchell
- Wise Owl Consulting, Como, Western Australia 6152, Australia
| | - Sonia Coriani
- Department of Chemistry, Technical University of Denmark, Kemitorvet Building 207, DK-2800 Kongens Lyngby, Denmark
| | - Birger Lindberg Møller
- Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
| |
Collapse
|
4
|
The Flavone Cirsiliol from Salvia x jamensis Binds the F 1 Moiety of ATP Synthase, Modulating Free Radical Production. Cells 2022; 11:cells11193169. [PMID: 36231131 PMCID: PMC9562182 DOI: 10.3390/cells11193169] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/25/2022] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
Several studies have shown that mammalian retinal rod outer segments (OS) are peculiar structures devoid of mitochondria, characterized by ectopic expression of the molecular machinery for oxidative phosphorylation. Such ectopic aerobic metabolism would provide the chemical energy for the phototransduction taking place in the OS. Natural polyphenols include a large variety of molecules having pleiotropic effects, ranging from anti-inflammatory to antioxidant and others. Our goal in the present study was to investigate the potential of the flavonoid cirsiliol, a trihydroxy-6,7-dimethoxyflavone extracted from Salvia x jamensis, in modulating reactive oxygen species production by the ectopic oxidative phosphorylation taking place in the OS. Our molecular docking analysis identified cirsiliol binding sites inside the F1 moiety of the nanomotor F1Fo-ATP synthase. The experimental approach was based on luminometry, spectrophotometry and cytofluorimetry to evaluate ATP synthesis, respiratory chain complex activity and H2O2 production, respectively. The results showed significant dose-dependent inhibition of ATP production by cirsiliol. Moreover, cirsiliol was effective in reducing the free radical production by the OS exposed to ambient light. We report a considerable protective effect of cirsiliol on the structural stability of rod OS, suggesting it may be considered a promising compound against oxidative stress.
Collapse
|
5
|
Avula B, Katragunta K, Wang YH, Ali Z, Khan IA. Simultaneous determination and characterization of flavonoids, sesquiterpene lactone, and other phenolics from Centaurea benedicta and dietary supplements using UHPLC-PDA-MS and LC-DAD-QToF. J Pharm Biomed Anal 2022; 216:114806. [PMID: 35533533 DOI: 10.1016/j.jpba.2022.114806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 10/18/2022]
Abstract
Simultaneous identification and quantification of phenolic acid (chlorogenic acid), sesquiterpene lactone (cnicin), lignan (arctiin), and flavonoids (bracteoside, 6-methoxybracteoside, isokaempferide, and viscosine) in mixed parts of Centaurea benedicta (Syn. Cnicus benedictus) were performed for the first time. The liquid chromatography method showed an adequate performance for the separation of seven compounds. The method was validated for linearity (0.5-100 μg/mL), precision, accuracy, limit of detection (LOD), and limit of quantification (LOQ) as well as robustness. Cnicin and arctiin were detected at concentrations as low as 0.25 µg/mL. Remaining flavonoids and chlorogenic acid were detected at 0.025 μg/mL. The method demonstrated good performance in terms of intra- and inter-day precision (0.1-3.4%), accuracy (98.0-105.0%), lower and upper limits of quantification for all compounds. Analysis of various samples showed considerable variation of 0.9-10.3 mg/g for the marker compound, cnicin. Twenty-one dietary supplements, claiming to contain C. benedictus extract, were analyzed for authenticity. Thirteen (62%) of 21 products showed the presence of all analyzed compounds and were confirmed to contain C. benedictus. A liquid chromatography-tandem mass spectrometry method coupled with electrospray ionization (ESI) is described for the identification of compounds in plant samples. This method involved the use of protonated, deprotonated, and adduct ions for compounds in positive and negative ion modes with extractive ion chromatogram (EIC). The application of liquid chromatography-quadrupole time of flight mass spectrometry (LC-QToF) provided useful information to characterize sixty-four compounds. The developed methods were also applicable for quality assessment of raw materials and dietary supplements containing C. benedictus.
Collapse
|
6
|
Graikou K, Kourti PM, Zengin G, Gortzi O, Danalatos N, Chinou I. Chemical Characterisation-Biological Evaluation of Greek Cultivar Cardoon Seeds (Cynara cardunculus). A By-product with Potential High Added Value. PLANTA MEDICA 2021; 87:1025-1031. [PMID: 33902129 DOI: 10.1055/a-1472-6336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cynara cardunculus (artichoke) is a perennial plant of the Mediterranean basin, known since antiquity as food and for its therapeutic properties. Cynara is a relatively small genus with two cultivated species and one wild one. Recently, successful efforts have been made to cultivate wild cardoon and monetise it as a bioenergy crop. In this study, the seeds of an established Greek cultivar of C. cardunculus, cultivated in the experimental field and used as biofuel, have been researched for their chemical profile and nutritional value. According to the results, six lignans were isolated [arctigenin, arctiin, trachelogenin, tracheloside, cynarinine, and ethylate of trachelogenin (isolated for the first time from a natural source)] as well as the most characteristic metabolites of the genus (linoleic acid, trilinolein, and 3,5-dicaffeoylquinic acid). Moreover, the total phenolic content (31.18 - 54.51 mg gallic acid equivalents/g extract) and antioxidant and enzyme inhibitory activities of the seeds have been evaluated and showed strong antioxidant properties (44.42 - 516.81 mg gallic acid equivalents/g extract) as well as satisfactory bleaching (enzyme tyrosinase, 16.95 - 23.80 mg kojic acid equivalents/g extract), antidiabetic (enzymes a-amylase, a-glucosidase, 0.14 - 1.75 mmol acarbose equivalents/g extract), and protective against neurodegenerative disease (cholinesterase enzymes, 0.49 - 1.22 mg galanthamine equivalents/g extract) activities. The nutritional evaluation of the seeds confirmed them as a rich source of unsaturated fatty acids, dietary fibre (24.1%), and high protein content (19.3%). It is noteworthy that such a neglected bioactive by-product, with essentially high nutritional value, as the studied seeds could be investigated for its value-added applications towards food and food supplements areas.
Collapse
Affiliation(s)
- Konstantia Graikou
- Laboratory of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Athens, Greece
| | - Panagiota-Maria Kourti
- Laboratory of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Athens, Greece
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Konya, Turkey
| | - Olga Gortzi
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Nikolaos Danalatos
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Ioanna Chinou
- Laboratory of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, National & Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
7
|
Muhammad S, Maqbool MF, Al-Sehemi AG, Iqbal A, Khan M, Ullah S, Khan MT. A threefold approach including quantum chemical, molecular docking and molecular dynamic studies to explore the natural compounds from Centaurea jacea as the potential inhibitors for COVID-19. BRAZ J BIOL 2021; 83:e247604. [PMID: 34495156 DOI: 10.1590/1519-6984.247604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/26/2021] [Indexed: 11/22/2022] Open
Abstract
In the current report, we studied the possible inhibitors of COVID-19 from bioactive constituents of Centaurea jacea using a threefold approach consisting of quantum chemical, molecular docking and molecular dynamic techniques. Centaurea jacea is a perennial herb often used in folk medicines of dermatological complaints and fever. Moreover, anticancer, antioxidant, antibacterial and antiviral properties of its bioactive compounds are also reported. The Mpro (Main proteases) was docked with different compounds of Centaurea jacea through molecular docking. All the studied compounds including apigenin, axillarin, Centaureidin, Cirsiliol, Eupatorin and Isokaempferide, show suitable binding affinities to the binding site of SARS-CoV-2 main protease with their binding energies -6.7 kcal/mol, -7.4 kcal/mol, -7.0 kcal/mol, -5.8 kcal/mol, -6.2 kcal/mol and -6.8 kcal/mol, respectively. Among all studied compounds, axillarin was found to have maximum inhibitor efficiency followed by Centaureidin, Isokaempferide, Apigenin, Eupatorin and Cirsiliol. Our results suggested that axillarin binds with the most crucial catalytic residues CYS145 and HIS41 of the Mpro, moreover axillarin shows 5 hydrogen bond interactions and 5 hydrophobic interactions with various residues of Mpro. Furthermore, the molecular dynamic calculations over 60 ns (6×106 femtosecond) time scale also shown significant insights into the binding effects of axillarin with Mpro of SARS-CoV-2 by imitating protein like aqueous environment. From molecular dynamic calculations, the RMSD and RMSF computations indicate the stability and dynamics of the best docked complex in aqueous environment. The ADME properties and toxicity prediction analysis of axillarin also recommended it as safe drug candidate. Further, in vivo and in vitro investigations are essential to ensure the anti SARS-CoV-2 activity of all bioactive compounds particularly axillarin to encourage preventive use of Centaurea jacea against COVID-19 infections.
Collapse
Affiliation(s)
- S Muhammad
- King Khalid University, College of Science, Department of Physics, Abha, Saudi Arabia
| | - M F Maqbool
- University of the Punjab, Department of Zoology, Quaid-e-Azam Campus, Lahore, Pakistan
| | - A G Al-Sehemi
- King Khalid University, College of Science, Department of Chemistry, Abha, Saudi Arabia.,King Khalid University, Research Center for Advanced Material Science - RCAMS, Abha, Saudi Arabia
| | - A Iqbal
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - M Khan
- University of the Punjab, Department of Zoology, Quaid-e-Azam Campus, Lahore, Pakistan
| | - S Ullah
- King Khalid University, College of Science, Department of Chemistry, Abha, Saudi Arabia
| | - M T Khan
- The University of Lahore, Institute of Molecular Biology and Biotechnology - IMBB, Lahore, Pakistan
| |
Collapse
|
8
|
Borgo J, Laurella LC, Martini F, Catalán CAN, Sülsen VP. Stevia Genus: Phytochemistry and Biological Activities Update. Molecules 2021; 26:2733. [PMID: 34066562 PMCID: PMC8125113 DOI: 10.3390/molecules26092733] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 12/12/2022] Open
Abstract
The Stevia genus (Asteraceae) comprises around 230 species, distributed from the southern United States to the South American Andean region. Stevia rebaudiana, a Paraguayan herb that produces an intensely sweet diterpene glycoside called stevioside, is the most relevant member of this genus. Apart from S. rebaudiana, many other species belonging to the Stevia genus are considered medicinal and have been popularly used to treat different ailments. The members from this genus produce sesquiterpene lactones, diterpenes, longipinanes, and flavonoids as the main types of phytochemicals. Many pharmacological activities have been described for Stevia extracts and isolated compounds, antioxidant, antiparasitic, antiviral, anti-inflammatory, and antiproliferative activities being the most frequently mentioned. This review aims to present an update of the Stevia genus covering ethnobotanical aspects and traditional uses, phytochemistry, and biological activities of the extracts and isolated compounds.
Collapse
Affiliation(s)
- Jimena Borgo
- Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), CONICET—Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (J.B.); (L.C.L.); (F.M.)
- Cátedra de Farmacognosia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina
- Cátedra de Química Medicinal, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| | - Laura C. Laurella
- Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), CONICET—Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (J.B.); (L.C.L.); (F.M.)
- Cátedra de Farmacognosia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| | - Florencia Martini
- Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), CONICET—Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (J.B.); (L.C.L.); (F.M.)
- Cátedra de Química Medicinal, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| | - Cesar A. N. Catalán
- Instituto de Química Orgánica, Facultad de Bioquímica Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471 (T4000INI), San Miguel de Tucumán T4000, Argentina;
| | - Valeria P. Sülsen
- Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), CONICET—Universidad de Buenos Aires, Buenos Aires 1113, Argentina; (J.B.); (L.C.L.); (F.M.)
- Cátedra de Farmacognosia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina
- Cátedra de Química Medicinal, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires 1113, Argentina
| |
Collapse
|
9
|
Jia X, Huang C, Hu Y, Wu Q, Liu F, Nie W, Chen H, Li X, Dong Z, Liu K. Cirsiliol targets tyrosine kinase 2 to inhibit esophageal squamous cell carcinoma growth in vitro and in vivo. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:105. [PMID: 33731185 PMCID: PMC7972218 DOI: 10.1186/s13046-021-01903-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 03/08/2021] [Indexed: 12/19/2022]
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is an aggressive and lethal cancer with a low 5 year survival rate. Identification of new therapeutic targets and its inhibitors remain essential for ESCC prevention and treatment. Methods TYK2 protein levels were checked by immunohistochemistry. The function of TYK2 in cell proliferation was investigated by MTT [(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] and anchorage-independent cell growth. Computer docking, pull-down assay, surface plasmon resonance, and kinase assay were used to confirm the binding and inhibition of TYK2 by cirsiliol. Cell proliferation, western blot and patient-derived xenograft tumor model were used to determine the inhibitory effects and mechanism of cirsiliol in ESCC. Results TYK2 was overexpressed and served as an oncogene in ESCC. Cirsiliol could bind with TYK2 and inhibit its activity, thereby decreasing dimer formation and nucleus localization of signal transducer and activator of transcription 3 (STAT3). Cirsiliol could inhibit ESCC growth in vitro and in vivo. Conclusions TYK2 is a potential target in ESCC, and cirsiliol could inhibit ESCC by suppression of TYK2. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01903-z.
Collapse
Affiliation(s)
- Xuechao Jia
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Chuntian Huang
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Yamei Hu
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Qiong Wu
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Fangfang Liu
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Wenna Nie
- China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, Austin, MN, 55912, USA
| | - Xiang Li
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China
| | - Zigang Dong
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China. .,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China. .,Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China.
| | - Kangdong Liu
- Department of Pathophysiology, The School of Basic Medical Sciences, AMS, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, Henan, China. .,China-US (Henan) Hormel Cancer Institute, Zhengzhou, 450008, Henan, China. .,Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China. .,Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, China. .,State Key Laboratory of Esophageal Cancer Prevention and Treatment, Zhengzhou, Henan, China.
| |
Collapse
|
10
|
Mohamed TA, Elshamy AI, Abd‐ElGawad AM, Hussien TA, El‐Toumy SA, Efferth T, Hegazy MF. Cytotoxic and chemotaxonomic study of isolated metabolites from Centaurea aegyptiaca. J CHIN CHEM SOC-TAIP 2021; 68:159-168. [DOI: 10.1002/jccs.202000156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 08/25/2020] [Indexed: 09/02/2023]
Abstract
AbstractThe aerial parts of Centaureaa egyptiaca afforded 10 secondary metabolites including four sesquiterpene lactones; chlorohyssopifolin A (centaurepensin) (1), rediolpidetriol (2), linichlorinA (3), and sinaicin (4), one monoterpene; loliolid (5), one phenolic: tyrosol (6), three lignans; arctigenin (7), matairesinol (8), and pinoresinol (9), and one steroid; ergosta‐5,22‐dien‐3‐ol (10). The cluster analysis of 32 Centaurea species revealed that C. aegyptiaca is closely related to C. repens and C. solstitialise. The isolated compounds (1–10) were screened against CCRF‐CEM‐leukemia, MDA‐MB‐231‐pcDNA3 breast cancer, and HCT116 (p53+/+) colon carcinoma cell lines. Compounds1 and 2 were the most potent compounds against both leukemia and breast carcinoma cell lines.
Collapse
Affiliation(s)
- Tarik A. Mohamed
- Chemistry of Medicinal Plants Department National Research Centre Giza Egypt
| | | | - Ahmed M. Abd‐ElGawad
- Department of Plant Production College of Food and Agriculture Sciences, King Saud University Riyadh Saudi Arabia
- Department of Botany Faculty of Science, Mansoura University Mansoura Egypt
| | - Taha A. Hussien
- Department of Pharmacognosy Faculty of Pharmacy, Deraya University Minia Egypt
| | | | - Thomas Efferth
- Department of Pharmaceutical Biology Institute of Pharmacy and Biochemistry, University of Mainz Mainz Germany
| | - Mohamed‐Elamir F. Hegazy
- Chemistry of Medicinal Plants Department National Research Centre Giza Egypt
- Department of Pharmaceutical Biology Institute of Pharmacy and Biochemistry, University of Mainz Mainz Germany
| |
Collapse
|
11
|
Dimkić I, Petrović M, Gavrilović M, Gašić U, Ristivojević P, Stanković S, Janaćković P. New perspectives of purple starthistle (Centaurea calcitrapa) leaf extracts: phytochemical analysis, cytotoxicity and antimicrobial activity. AMB Express 2020; 10:183. [PMID: 33044582 PMCID: PMC7550514 DOI: 10.1186/s13568-020-01120-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 10/05/2020] [Indexed: 12/13/2022] Open
Abstract
Ethnobotanical and ethnopharmacological studies of many Centaurea species indicated their potential in folk medicine so far. However, investigations of different Centaurea calcitrapa L. extracts in terms of cytotoxicity and antimicrobial activity against phytopathogens are generally scarce. The phenolic profile and broad antimicrobial activity (especially towards bacterial phytopathogens) of methanol (MeOH), 70% ethanol (EtOH), ethyl-acetate (EtOAc), 50% acetone (Me2CO) and dichloromethane: methanol (DCM: MeOH, 1: 1) extracts of C. calcitrapa leaves and their potential toxicity on MRC-5 cell line were investigated for the first time. A total of 55 phenolic compounds were identified: 30 phenolic acids and their derivatives, 25 flavonoid glycosides and aglycones. This is also the first report of the presence of centaureidin, jaceidin, kaempferide, nepetin, flavonoid glycosides, phenolic acids and their esters in C. calcitrapa extracts. The best results were obtained with EtOAc extract with lowest MIC values expressed in µg/mL ranging from 13 to 25, while methicillin resistant Staphylococcus aureus was the most susceptible strain. The most susceptible phytopathogens were Pseudomonas syringae pv. syringae, Xanthomonas campestris pv. campestris and Agrobacterium tumefaciens. The highest cytotoxicity was recorded for EtOAc and Me2CO extracts with the lowest relative and absolute IC50 values between 88 and 102 µg/mL, while EtOH extract was the least toxic with predicted relative IC50 value of 1578 µg/mL. Our results indicate that all tested extracts at concentration considered as non-toxic can be one of great importance in combat towards phytopathogenic and human pathogenic strains, as well as natural sources of antimicrobials.
Collapse
|
12
|
Ashaq A, Maqbool MF, Maryam A, Khan M, Shakir HA, Irfan M, Qazi JI, Li Y, Ma T. Hispidulin: A novel natural compound with therapeutic potential against human cancers. Phytother Res 2020; 35:771-789. [PMID: 32945582 DOI: 10.1002/ptr.6862] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/29/2020] [Accepted: 08/11/2020] [Indexed: 12/24/2022]
Abstract
Cancer is one of the most devastating disease and leading cause of death worldwide. The conventional anticancer drugs are monotarget, toxic, expensive and suffer from drug resistance. Development of multi-targeted drugs from natural products has emerged as a new paradigm to overcome aforementioned conventionally encountered obstacles. Hispidulin (HIS), is a biologically active natural flavone with versatile biological and pharmacological activities. The anticancer, antimutagenic, antioxidative and anti-inflammatory properties of HIS have been reported. The aim of this review is to summarize the findings of several studies over the last few decades on the anticancer activity of HIS published in various databases including PubMed, Google Scholar, and Scopus. HIS has been shown to reduce the growth of cancer cells by inducing apoptosis, arresting cell cycle, inhibiting angiogenesis, invasion and metastasis via modulating multiple signaling pathways implicated in cancer initiation and progression. Multitargeted anticancer activity of HIS remains the strongest point for developing it into potential anticancer drug. We also highlighted the natural sources, anticancer mechanism, cellular targets, and chemo-sensitizing potential of HIS. This review will provide bases for design and conduct of further pre-clinical and clinical trials to develop HIS into a lead structure for future anticancer therapy.
Collapse
Affiliation(s)
- Aisha Ashaq
- Department of Zoology, University of the Punjab, Lahore, Pakistan
| | | | - Amara Maryam
- Department of Zoology, University of the Punjab, Lahore, Pakistan
| | - Muhammad Khan
- Department of Zoology, University of the Punjab, Lahore, Pakistan
| | - Hafiz A Shakir
- Department of Zoology, University of the Punjab, Lahore, Pakistan
| | - Muhammad Irfan
- Department of Biotechnology, University of Sargodha, Sargodha, Pakistan
| | - Javed I Qazi
- Department of Zoology, University of the Punjab, Lahore, Pakistan
| | - Yongming Li
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tonghui Ma
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| |
Collapse
|
13
|
Bouzghaia B, Moussa MTB, Goudjil R, Harkat H, Pale P. Chemical composition, in vitro antioxidant and antibacterial activities of Centaurea resupinata subsp. dufourii (dostál) greuter. Nat Prod Res 2020; 35:4734-4739. [PMID: 31971020 DOI: 10.1080/14786419.2020.1715397] [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] [Indexed: 10/25/2022]
Abstract
The current study focuses on the chemical composition, and evaluation of antioxidant and antibacterial activity of the aerial parts of Centaurea resupinata subsp. dufourii. Using different chromatographic methods nine compounds 1-9 were isolated. The structural identification of isolated compounds was achieved using several spectroscopic methods NMR techniques (1H NMR, 13C NMR, COSY, HSQC, HMBC) and mass spectroscopy (ESI-MS) and by comparison with literature data. The structures of these compounds were identified as nicotiflorin (1), apigetrin (2), chrysoeriol (3), apigenin (4), chrysin (5), daucosterol (6), β-sitosterol (7), taraxastrerol (8) and lupeol (9). The antibacterial and antioxidant activities of ethyl acetate and n-butanol extracts have been evaluated. The antioxidant activity was assessed in vitro using DPPH radical scavenging method, which showed that ethyl acetate extract possessed an interesting antioxidant potential (IC50 = 36.263 ± 0.005 μg/mL).
Collapse
Affiliation(s)
- Badra Bouzghaia
- Laboratoire de physio-toxicologie, pathologie cellulaires et moléculaires-biomolécules (LPTPCMB), Département de Pharmacie, Faculté de Médecine, Université de Batna-2, Batna, Algérie.,Département de Chimie, Faculté des Sciences de la Matière, Université de Batna-1, Batna, Algérie
| | - Mohammed Tahar Ben Moussa
- Laboratoire de physio-toxicologie, pathologie cellulaires et moléculaires-biomolécules (LPTPCMB), Département de Pharmacie, Faculté de Médecine, Université de Batna-2, Batna, Algérie
| | - Rima Goudjil
- Laboratoire de microbiologie et de biologie végétale, Université de Mostaganem-Algerie, Mostaganem, Algeria
| | - Hassina Harkat
- Laboratoire de physio-toxicologie, pathologie cellulaires et moléculaires-biomolécules (LPTPCMB), Département de Pharmacie, Faculté de Médecine, Université de Batna-2, Batna, Algérie
| | - Patrick Pale
- Laboratoire de Synthèse et Réactivité Organiques, Associé au CNRS, Institut de Chimie de Strasbourg, Université de Strasbourg, Strasbourg, France
| |
Collapse
|
14
|
Tastan P, Hajdú Z, Kúsz N, Zupkó I, Sinka I, Kivcak B, Hohmann J. Sesquiterpene Lactones and Flavonoids from Psephellus pyrrhoblepharus with Antiproliferative Activity on Human Gynecological Cancer Cell Lines. Molecules 2019; 24:molecules24173165. [PMID: 31480332 PMCID: PMC6749316 DOI: 10.3390/molecules24173165] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 11/16/2022] Open
Abstract
Multistep chromatographic separations of the chloroform extract of the Turkish endemic plant Psephellus pyrrhoblepharus (Boiss.) Wagenitz (syn. Centaurea pyrrhoblephara Boiss.) resulted in the isolation of six guaianolid-type sesquiterpenes, chlorojanerin (1), 19-deoxychlorojanerin (2), 15-hydroxyjanerin (3), aguerin B (4), cynaropicrin (5), eleganin (6); three flavonoids, apigenin, 6-methoxyluteolin and jaceosidine; two glycosides, benzyl-1-O-β-d-glucoside and 3(Z)-hexenyl-1-O-β-d-glucoside; and the coumarin scopoletin. The structures were established by the interpretation of their ESI-MS and 1D and 2D NMR data including 1H-NMR, JMOD, 1H,1H-COSY, HSQC, HMBC, and NOESY experiments. All compounds were isolated for the first time from P. pyrrhoblepharus. Compounds 1-6, the isolated flavonoids and scopoletin were evaluated for their antiproliferative activities on human gynecological cancer cell lines (SiHa, HeLa, and MDA-MB-231 cells) using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. Chlorojanerin (1), 19-deoxychlorojanerin (2), aguerin B (4), cynaropicrin (5), eleganin (6) were shown to have noteworthy effects on all of the tested cell lines, while apigenin, jaceosidine, and 6-methoxyluteolin were moderately active on HeLa cells. The highest activities were demonstrated by the chlorine-containing derivatives chlorojanerin (1) and 19-deoxychlorojanerin (2) with IC50 values of 2.21 and 2.88 µM, respectively, against the triple negative breast cancer model MDA-MB-231 cells.
Collapse
Affiliation(s)
- Pelin Tastan
- Department of Pharmacognosy, Faculty of Pharmacy, Ege University, 35040 Bornova/İzmir, Turkey
| | - Zsuzsanna Hajdú
- Institute of Pharmacognosy, Interdisciplinary Excellence Centre, University of Szeged, 6720 Szeged, Hungary
| | - Norbert Kúsz
- Institute of Pharmacognosy, Interdisciplinary Excellence Centre, University of Szeged, 6720 Szeged, Hungary
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, Interdisciplinary Excellence Centre, University of Szeged, 6720 Szeged, Hungary
- Interdisciplinary Centre of Natural Products, University of Szeged, 6720 Szeged, Hungary
| | - Izabella Sinka
- Institute of Pharmacodynamics and Biopharmacy, Interdisciplinary Excellence Centre, University of Szeged, 6720 Szeged, Hungary
| | - Bijen Kivcak
- Department of Pharmacognosy, Faculty of Pharmacy, Ege University, 35040 Bornova/İzmir, Turkey
| | - Judit Hohmann
- Institute of Pharmacognosy, Interdisciplinary Excellence Centre, University of Szeged, 6720 Szeged, Hungary.
- Interdisciplinary Centre of Natural Products, University of Szeged, 6720 Szeged, Hungary.
| |
Collapse
|
15
|
Bulut F, Demirtas I, Koldas S, Gul F, Behcet L, Ozen T, Oke-Altuntas F. The cytotoxicity and antioxidant activity analysis of the isolated constituents and extracts from endemic Centaurea derderiifolia. Nat Prod Res 2019; 35:1919-1922. [PMID: 31334668 DOI: 10.1080/14786419.2019.1644507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
It is aimed to investigate the cytotoxic effects of the various extracts from the leaf and seed of Centaurea derderiifolia on the growth human cervical adenocarcinoma (HeLa) cells by xCELLigence method and to isolate the cytotoxic constituents. The results showed that subfractions 2 and 3 exhibited remarkable inhibitory effect against HeLa (IC50 < 10 µg/mL). The chloroform extract of leaf displayed the highest cytotoxic effect on HeLa cells (IC50 < 50 µg/mL) and was therefore subjected to a bioassay-guided multistep separation procedure. The pure compounds were elucidated by spectroscopic and mass-spectrometric analyses, including 1 D-, 2 D-NMR. In addition to cytotoxic effects of the isolated constituents, their antioxidant activities were also studied. On the other hand, subfraction 4 exhibited the highest DPPH radical scavenging activity (IC50 = 0.76 ± 0.03 mg/mL). β-sitosterol-3-O-β-d-glucopyranoside was isolated for the first time from this plant and three compounds from the bioactive subfractions were identified.
Collapse
Affiliation(s)
- Fatma Bulut
- Department of Chemistry, Faculty of Science, Çankırı Karatekin University, Çankırı, Turkey
| | - Ibrahim Demirtas
- Department of Chemistry, Faculty of Science, Çankırı Karatekin University, Çankırı, Turkey
| | - Serkan Koldas
- Department of Chemistry, Faculty of Science, Çankırı Karatekin University, Çankırı, Turkey
| | - Fatih Gul
- Department of Chemistry, Faculty of Science, Çankırı Karatekin University, Çankırı, Turkey
| | - Lutfi Behcet
- Department of Biology, Faculty of Arts and Sciences, Bingöl University, Bingöl, Turkey
| | - Tevfik Ozen
- Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University, Samsun, Turkey
| | - Feyza Oke-Altuntas
- Department of Biology, Faculty of Science, Gazi University, Ankara, Turkey
| |
Collapse
|
16
|
Sonavane M, Gassman NR. Bisphenol A co-exposure effects: a key factor in understanding BPA's complex mechanism and health outcomes. Crit Rev Toxicol 2019; 49:371-386. [PMID: 31256736 DOI: 10.1080/10408444.2019.1621263] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bisphenol A (BPA) is an environmental endocrine disrupting chemical widely used in the production of consumer products, such as polycarbonate plastics, epoxies, and thermal receipt paper. Human exposure to BPA is ubiquitous due to its high-volume production and use. BPA exposure has been associated with obesity, diabetes, reproductive disorders, and cancer. Yet, the molecular mechanisms or modes of action underlying these disease outcomes are poorly understood due to the pleiotropic effects induced by BPA. A further confounding factor in understanding BPA's impact on human health is that co-exposure of BPA with endogenous and exogenous agents occurs during the course of daily life. Studies investigating BPA exposure effects and their relationship to adverse health outcomes often ignore interactions between BPA and other chemicals present in the environment. This review examines BPA co-exposure studies to highlight potentially unexplored mechanisms of action and their possible associations with the adverse health effects attributed to BPA. Importantly, both adverse and beneficial co-exposure effects are observed between BPA and natural chemicals or environmental stressors in in vitro and in vivo models. These interactions clearly influence cellular responses and impact endpoint measures and need to be considered when evaluating BPA exposures and their health effects.
Collapse
Affiliation(s)
- Manoj Sonavane
- Department of Oncologic Sciences, University of South Alabama Mitchell Cancer Institute, Mobile, AL, USA.,Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, USA
| | - Natalie R Gassman
- Department of Oncologic Sciences, University of South Alabama Mitchell Cancer Institute, Mobile, AL, USA.,Department of Physiology and Cell Biology, University of South Alabama College of Medicine, Mobile, AL, USA
| |
Collapse
|
17
|
Labed F, Masullo M, Mirra V, Nazzaro F, Benayache F, Benayache S, Piacente S. Amino acid-sesquiterpene lactone conjugates from the aerial parts of Centaurea pungens and evaluation of their antimicrobial activity. Fitoterapia 2019; 133:51-55. [DOI: 10.1016/j.fitote.2018.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 11/30/2018] [Accepted: 12/02/2018] [Indexed: 02/04/2023]
|
18
|
Cirsiliol Suppressed Epithelial to Mesenchymal Transition in B16F10 Malignant Melanoma Cells through Alteration of the PI3K/Akt/NF-κB Signaling Pathway. Int J Mol Sci 2019; 20:ijms20030608. [PMID: 30708951 PMCID: PMC6386903 DOI: 10.3390/ijms20030608] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/19/2019] [Accepted: 01/25/2019] [Indexed: 02/07/2023] Open
Abstract
Malignant melanoma is a highly aggressive form of skin cancer which has a propensity for metastasis. Epithelial mesenchymal transition (EMT) plays a primordial role in the progression of metastatic disease. Metastatic melanoma is resistant to conventional therapies. Hence, researchers have been exploring alternative approaches, including the utility of bioactive phytochemicals to manage metastatic disease. In the present study, we investigated the potential of cirsiliol, a flavonoid isolated from Centaurea jacea L., in modulating the aggressive behavior of B16F10 metastatic melanoma cells, including EMT, and associated molecular mechanisms of action. Cirsiliol was found to be effective in restraining the colony formation and migration of fibronectin-induced B16F10 metastatic melanoma cells. Cirsiliol inhibited the activity and expression of matrix metalloproteinase-9 (MMP-9). Cirsiliol also suppressed the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (also known as Akt)/nuclear factor-κB (NF-κB) signaling pathway which, in turn, caused upregulation of E-cadherin and downregulation of N-cadherin, Snail and Twist. Based on these results, cirsiliol may be considered a promising compound against EMT in the therapeutic management of malignant melanoma.
Collapse
|
19
|
Grienke U, Radić Brkanac S, Vujčić V, Urban E, Ivanković S, Stojković R, Rollinger JM, Kralj J, Brozovic A, Radić Stojković M. Biological Activity of Flavonoids and Rare Sesquiterpene Lactones Isolated From Centaurea ragusina L. Front Pharmacol 2018; 9:972. [PMID: 30190676 PMCID: PMC6117149 DOI: 10.3389/fphar.2018.00972] [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: 01/08/2018] [Accepted: 08/06/2018] [Indexed: 01/28/2023] Open
Abstract
The endemic Croatian species Centaurea ragusina L., like other species from the genus Centaurea, has been traditionally used in Croatia as an antibacterial agent and for the treatment of gastrointestinal and urogenital disorders. In several chromatographic steps, three flavonoids and three sesquiterpene lactones (STLs) were isolated and identified from the most active fractions of the ethanol extract. Two STLs, one for which we created the trivial name ragusinin, and hemistepsin A are here reported for the first time as constituents of the genus Centaurea. All six compounds were screened for their effect on several tumor and one normal cell lines. Among them, ragusinin showed the best bioactivity and high specificity to affect tumor murine SCCVII, human HeLa and Caco-2 cell lines, but not the viability of normal V79 fibroblasts. Due to these characteristics the action of ragusinin was investigated in more detail. Since DNA is the primary target for many drugs with antibacterial and anticancer activity, we studied its interaction with ragusinin. Rather moderate binding affinity to DNA excluded it as the primary target of ragusinin. Due to the possibility of STL interaction with glutathione (GSH), the ubiquitous peptide that traps reactive compounds and other xenobiotics to prevent damage to vital proteins and nucleic acids, its role in deactivation of ragusinin was evaluated. Addition of the GSH precursor N-acetyl-cysteine potentiated the viability of HeLa cells, while the addition of GSH inhibitor L-buthionine sulfoximine decreased it. Moreover, pre-treatment of HeLa cells with the inhibitor of glutathione-S-transferase decreased their viability indicating the detoxifying role of GSH in ragusinin treated cells. Cell death, derived by an accumulation of cells in a G2 phase of the cell cylce, was shown to be independent of poly (ADP-ribose) polymerase and caspase-3 cleavage pointing toward an alternative cell death pathway.
Collapse
Affiliation(s)
- Ulrike Grienke
- Department of Pharmacognosy, University of Vienna, Vienna, Austria
| | - Sandra Radić Brkanac
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Valerija Vujčić
- Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Ernst Urban
- Department of Pharmaceutical Chemistry, University of Vienna, Vienna, Austria
| | - Siniša Ivanković
- Division of Molecular Medicine, Ruđer Bošković Institute, Zagreb, Croatia
| | - Ranko Stojković
- Division of Molecular Medicine, Ruđer Bošković Institute, Zagreb, Croatia
| | | | - Juran Kralj
- Division of Molecular Biology, Ruđer Bošković Institute, Zagreb, Croatia
| | - Anamaria Brozovic
- Division of Molecular Biology, Ruđer Bošković Institute, Zagreb, Croatia
| | | |
Collapse
|
20
|
Kayacan S, Sener LT, Melikoglu G, Kultur S, Albeniz I, Ozturk M. Induction of apoptosis by Centaurea nerimaniae extract in HeLa and MDA-MB-231 cells by a caspase-3 pathway. Biotech Histochem 2018; 93:311-319. [DOI: 10.1080/10520295.2017.1401662] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- S Kayacan
- Department of Medical Biology, Cerrahpasa Medical Faculty
| | - LT Sener
- Department of Biophysics, Medical Faculty
| | - G Melikoglu
- Department of Pharmacognosy, Pharmacy Faculty
| | - S Kultur
- Department of Pharmaceutical Botany, Pharmacy Faculty, Istanbul University, Istanbul, Turkey
| | - I Albeniz
- Department of Biophysics, Medical Faculty
| | - M Ozturk
- Department of Medical Biology, Cerrahpasa Medical Faculty
| |
Collapse
|
21
|
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
| |
Collapse
|
22
|
Móricz ÁM, Szeremeta D, Knaś M, Długosz E, Ott PG, Kowalska T, Sajewicz M. Antibacterial potential of the Cistus incanus L. phenolics as studied with use of thin-layer chromatography combined with direct bioautography and in situ hydrolysis. J Chromatogr A 2018; 1534:170-178. [DOI: 10.1016/j.chroma.2017.12.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 10/18/2022]
|
23
|
Sen A, Ozbas Turan S, Bitis L. Bioactivity-guided isolation of anti-proliferative compounds from endemic Centaurea kilaea. PHARMACEUTICAL BIOLOGY 2017; 55:541-546. [PMID: 27938087 PMCID: PMC6130618 DOI: 10.1080/13880209.2016.1255980] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/24/2016] [Accepted: 10/29/2016] [Indexed: 05/15/2023]
Abstract
CONTEXT The genus Centaurea L. (Asteraceae) is one of the largest genera in Turkey. Compounds and extracts obtained from different Centaurea species have significant anti-cancer activity against various cancer cell lines. OBJECTIVE To determine the anti-proliferative activity of isolates from the chloroform extract of C. kilaea Boiss. MATERIALS AND METHODS Eleven compounds were isolated using column chromatography and preparative TLC from the chloroform extract of aerial parts of endemic C. kilaea. The structures of the isolated compounds were elucidated by various spectroscopic methods, including UV, lH-NMR and 13C-NMR. Anti-proliferative activity of compounds (0.5-50 μg/mL) were measured against one normal cell line (L-929, mouse fibroblast) and three human cancer cell lines (Hela, cervix carcinoma; MCF-7, breast carcinoma; PC-3, prostate carcinoma) using MTT assay. Results were expressed as IC50 values. RESULTS None of the 11 compounds displayed activity against L-929 and HeLa. Two of these compounds, cnicin and cirsimaritin, showed fairly strong activity against MCF-7 and PC-3 with IC50 values of 3.25 and 4.3 μg/mL, respectively. DISCUSSION AND CONCLUSION This is the first report on cirsimaritin. Cirsimaritin and cnicin could serve as potential anti-cancer drug candidates against breast and prostate cancer, respectively.
Collapse
Affiliation(s)
- Ali Sen
- Department of Pharmacognosy, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Suna Ozbas Turan
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Leyla Bitis
- Department of Pharmacognosy, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| |
Collapse
|
24
|
Mshengu BP, Gakuba E, van Heerden FR. Chemical constituents from Elytropappus rhinocerotis (L.f.) Less. BIOCHEM SYST ECOL 2017. [DOI: 10.1016/j.bse.2017.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
25
|
Radan M, Carev I, Tešević V, Politeo O, Čulić VČ. Qualitative HPLC-DAD/ESI-TOF-MS Analysis, Cytotoxic, and Apoptotic Effects of Croatian Endemic Centaurea ragusina L. Aqueous Extracts. Chem Biodivers 2017; 14. [PMID: 28591430 DOI: 10.1002/cbdv.201700099] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/02/2017] [Indexed: 11/11/2022]
Abstract
Centaurea ragusina L., an endemic Croatian plant species, revealed a good cytotoxic activity of aqueous extracts (AE) on human bladder (T24) and human glioblastoma (A1235) cancer cell lines. The chemical constituents were tentatively identified using high performance liquid chromatography HPLC-DAD/ESI-TOF-MS in negative ionization mode. The main compounds of herba extract were sesquiterpene lactones: solstitialin A 3,13-diacetate and epoxyrepdiolide; organic acid: quinic acid. The main compounds of flower extract were organic acids: quinic acid, citric acid, and malic acid; sesquiterpene lactone: cynaropicrin; phenolic compounds: chlorogenic acid and phenylpropanoid: syringin. The AE of C. ragusina were investigated for correlation of their effects on human bladder (T24) and human glioblastoma (A1235) cancer cell lines using the MTT assay. Although both extracts showed significant dose- and time-dependent cytotoxic activity against both cancer cell lines, the flower extract exhibited slightly higher activity. In order to determine type of cell death induced by treatment, cell lines were exposed subsequently to a treatment with both flower and herba AE. The majority of the cells died by induced apoptosis treatment. Flower AE (26.25%), compared to a leaf AE (22.15%) showed slightly higher percentage of an apoptosis in T24 cells, when compared to a non-treated cells (0.04%).
Collapse
Affiliation(s)
- Mila Radan
- Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, HR-21000, Split, Croatia
| | - Ivana Carev
- Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, HR-21000, Split, Croatia
| | - Vele Tešević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, RS-11158, Belgrade, Serbia
| | - Olivera Politeo
- Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, HR-21000, Split, Croatia
| | - Vedrana Čikeš Čulić
- School of Medicine, University of Split, Šoltanska 2, HR-21000, Split, Croatia
| |
Collapse
|
26
|
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
| |
Collapse
|
27
|
Korga A, Józefczyk A, Zgórka G, Homa M, Ostrowska M, Burdan F, Dudka J. Evaluation of the phytochemical composition and protective activities of methanolic extracts of Centaurea borysthenica and Centaurea daghestanica (Lipsky) Wagenitz on cardiomyocytes treated with doxorubicin. Food Nutr Res 2017; 61:1344077. [PMID: 28747863 PMCID: PMC5510226 DOI: 10.1080/16546628.2017.1344077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 06/05/2017] [Indexed: 12/13/2022] Open
Abstract
Centaurea L. is a genus of the family Asteraceae that comprises over 600 taxa. Representatives of the Centaurea genus were used as natural medications for many diseases. Methanolic-aqueous extracts from aerial parts of two Centaurea species: C. borysthenica Gruner and C. daghestanica (Lipsky) Wagenitz were studied for their polyphenolic composition and potential protective effect on cardiomyocytes treated with doxorubicin. Effectiveness of doxorubicin in cancer therapy is limited by a dose-dependent cardiotoxicity. Oxidative stress is a widely recognized mechanism of this phenomenon. One of the most important strategies has been an application of drug together with antioxidant agents. A cardioprotective effect of selected extracts of Centaurea species was suspected in this study. Cell viability, oxidative stress, and mitochondrial membrane potential analyses showed protective activity of the methanolic extract of C. borysthenica and C. daghestanica on rat cardiomyocytes treated with doxorubicin. Although C. borysthenica is more effective as a cardiomyocyte protective agent, in higher concentrations it weakened the drug activity. C. daghestanica extract did not change the doxorubicin efficacy in the evaluated experiment. Interestingly, both tested extracts were cytotoxic for myeloma cells. The detected antioxidant activity of the studied extracts can be used in the prevention of doxorubicin-induced cardiotoxicity.
Collapse
Affiliation(s)
- Agnieszka Korga
- Independent Medical Biology Unit, Medical University of Lublin, Lublin, Poland
| | - Aleksandra Józefczyk
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Lublin, Poland
| | - Grażyna Zgórka
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Lublin, Poland
| | - Mateusz Homa
- Independent Medical Biology Unit, Medical University of Lublin, Lublin, Poland
| | - Marta Ostrowska
- Department of Toxicology, Medical University of Lublin, Lublin, Poland
| | - Franciszek Burdan
- Department of Human Anatomy, Medical University of Lublin, Lublin, Poland
| | - Jarosław Dudka
- Independent Medical Biology Unit, Medical University of Lublin, Lublin, Poland
| |
Collapse
|
28
|
Patel K, Patel DK. Medicinal importance, pharmacological activities, and analytical aspects of hispidulin: A concise report. J Tradit Complement Med 2017; 7:360-366. [PMID: 28725632 PMCID: PMC5506639 DOI: 10.1016/j.jtcme.2016.11.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 11/03/2016] [Accepted: 11/22/2016] [Indexed: 01/19/2023] Open
Abstract
Herbal medicines have been played an important role in the human civilization since very ancient time as a food, cloth, medicine and other aspects. Some of the important drugs in the modern medicine were derived from the natural sources such as aspirin, digitalis, quinine, vincristine, vinblastine etc. Hispidulin (4', 5, 7-trihydroxy-6-methoxyflavone) is a flavones derivative found in plant such as Grindelia argentina, Arrabidaea chica, Saussurea involucrate, Crossostephium chinense, Artemisia and Salvia species. Hispidulin have antioxidant, antifungal, anti-inflammatory, antimutagenic, and antineoplastic properties. So far, various analytical methods have been investigated and developed for detection of hispidulin in the plant materials. Productions of hispidulin through different tissue culture techniques have been also investigated. Present review summarized medicinal uses, pharmacological activities and analytical aspects of hispidulin. From the above mentioned aspects, we can conclude that, this review will be helpful to the researcher in the field of natural product for the development of novel molecule for the treatment of different disorders.
Collapse
Affiliation(s)
- Kanika Patel
- Jubilant Life Sciences, Noida, Uttar Pradesh, 201301, India
| | - Dinesh Kumar Patel
- Department of Pharmacy, Galgotias University, Greater Noida, 203201, Uttar Pradesh, India
| |
Collapse
|
29
|
Köse YB, İşcan G, Göger F, Akalın G, Demirci B, Başer KHC. Chemical Composition and Biological Activity of Centaurea baseri: New Species from Turkey. Chem Biodivers 2017; 13:1369-1379. [PMID: 27447348 DOI: 10.1002/cbdv.201600070] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 04/25/2016] [Indexed: 11/06/2022]
Abstract
The genus Centaurea L. is one of the largest and important genera of Asteraceae family. Centaurea species have been widely used as herbal remedies in folk medicine for their antidandruff, antidiarrheic, antirheumatic, anti-inflammatory, choleretic, diuretic, digestive, stomachic, astringent, antipyretic, cytotoxic, and antibacterial properties. Centaurea baseri Kose & Alan is a recently described local endemic species in Turkey and this is the first study on the chemical composition and bioactivity of its hydrodistilled essential oil and the crude extract. According to chromatospectral analysis, hexadecanoic acid (42.3%), nonacosane (8.2%), and heptacosane (8.0%) were the main compounds of the essential oil, while 16 compounds were determined in the MeOH extract using LC/MS. Furthermore, antimicrobial, antioxidant, and cytotoxic effects of the essential oil and the extract were evaluated in comparison with the standard agents. The extract showed strong antifungal effect against Candida utilis at the concentration of 60 μg/ml (MIC) where the EO showed growth inhibition at the concentration of 47.00 μg/ml (MIC) against pathogen Bacillus cereus. Both the essential oil and the extract did not show any selective antioxidant properties. The extract showed remarkably selective cytotoxic properties against MCF-7, PANC-1, A549, and C6 glioma cells.
Collapse
Affiliation(s)
- Yavuz Bülent Köse
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Anadolu University, TR-26470, Eskisehir
| | - Gökalp İşcan
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, TR-26470, Eskisehir. .,Yunus Emre Vocational School, Anadolu University, TR-26470, Eskisehir.
| | - Fatih Göger
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, TR-26470, Eskisehir
| | - Gülşen Akalın
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, TR-26470, Eskisehir
| | - Betül Demirci
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, TR-26470, Eskisehir
| | - Kemal Hüsnü Can Başer
- Department of Botany and Microbiology, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia.,Department of Pharmacognosy, Faculty of Pharmacy, Near East University, 99138, Nicosia, N. Cyprus
| |
Collapse
|
30
|
Badhani B, Kakkar R. In silico studies on potential MCF-7 inhibitors: a combination of pharmacophore and 3D-QSAR modeling, virtual screening, molecular docking, and pharmacokinetic analysis. J Biomol Struct Dyn 2016; 35:1950-1967. [PMID: 27401212 DOI: 10.1080/07391102.2016.1202863] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Gallic acid and its derivatives exhibit a diverse range of biological applications, including anti-cancer activity. In this work, a data-set of forty-six molecules containing the galloyl moiety, and known to show anticarcinogenic activity against the MCF-7 human cancer cell line, have been chosen for pharmacophore modeling and 3D-Quantitative Structure Activity Relationship (3D-QSAR) studies. A tree-based partitioning algorithm has been used to find common pharmacophore hypotheses. The QSAR model was generated for three, four, and five featured hypotheses with increasing PLS factors and analyzed. Results for five featured hypotheses with three acceptors and two aromatic rings were the best out of all the possible combinations. On analyzing the results, the most robust (R2 = .8990) hypothesis with a good predictive power (Q2 = .7049) was found to be AAARR.35. A good external validation (R2 = .6109) was also obtained. In order to design new MCF-7 inhibitors, the QSAR model was further utilized in pharmacophore-based virtual screening of a large database. The predicted IC50 values of the identified potential MCF-7 inhibitors were found to lie in the micromolar range. Molecular docking into the colchicine domain of tubulin was performed in order to examine one of the probable mechanisms. This revealed various interactions between the ligand and the active site protein residues. The present study is expected to provide an effective guide for methodical development of potent MCF-7 inhibitors.
Collapse
Affiliation(s)
- Bharti Badhani
- a Computational Chemistry Laboratory, Department of Chemistry , University of Delhi , Delhi 110007 , India
| | - Rita Kakkar
- a Computational Chemistry Laboratory, Department of Chemistry , University of Delhi , Delhi 110007 , India
| |
Collapse
|
31
|
High-resolution PTP1B inhibition profiling combined with high-performance liquid chromatography-high-resolution mass spectrometry-solid-phase extraction-nuclear magnetic resonance spectroscopy: Proof-of-concept and antidiabetic constituents in crude extract of Eremophila lucida. Fitoterapia 2016; 110:52-8. [PMID: 26882973 DOI: 10.1016/j.fitote.2016.02.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/10/2016] [Accepted: 02/12/2016] [Indexed: 01/02/2023]
Abstract
Type 2 diabetes (T2D) constituted 90% of the global 387 million diabetes cases in 2014. The enzyme protein-tyrosine phosphatase 1B (PTP1B) has been recognized as a therapeutic target for treatment of T2D and its adverse complications. With the aim of accelerating the investigation of complex natural sources, such as crude plant extracts, for potential PTP1B inhibitors, we have developed a bio-analytical platform combining high-resolution PTP1B inhibition profiling and high-performance liquid chromatography-high-resolution mass spectrometry-solid-phase extraction-nuclear magnetic resonance spectroscopy, i.e., HR-bioassay/HPLC-HRMS-SPE-NMR. Human recombinant PTP1B enzyme was used for the microplate-based PTP1B inhibition assay, which was optimized for pH and substrate concentration to be compatible with rate measurements within the 10 min incubation time. Subsequently, analytical-scale HPLC-based microfractionation followed by colorimetric microplate-based PTP1B bioassaying enabled construction of a high-resolution inhibition profile corresponding to the HPLC profile. The high-resolution PTP1B inhibition profiling was validated using an artificial mixture of known PTP1B inhibitors and non-inhibiting compounds as negative controls. Finally, a proof-of-concept study with a real sample was performed using crude ethyl acetate extract of the phytochemically hitherto unexplored plant Eremophila lucida. This led to the identification of the first viscidane type diterpene, i.e., 5-hydroxyviscida-3,14-dien-20-oic acid (9) as PTP1B inhibitor with an IC50 value of 42.0 ± 5.9 μM. In addition, a series of flavonoids, i.e., luteolin (1), dinatin (3a), tricin (3b), 3,6-dimethoxyapigenin (4), jaceidin (5), and cirsimaritin (6) as well as a cembrene diterpene, (3Z, 7E, 11Z)-15-hydroxycembra-3,7,11-trien-19-oic acid (8), were also identified for the first time from E. lucida.
Collapse
|
32
|
Baharum Z, Akim AM, Hin TYY, Hamid RA, Kasran R. Theobroma cacao: Review of the Extraction, Isolation, and Bioassay of Its Potential Anti-cancer Compounds. Trop Life Sci Res 2016; 27:21-42. [PMID: 27019680 PMCID: PMC4807961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Plants have been a good source of therapeutic agents for thousands of years; an impressive number of modern drugs used for treating human diseases are derived from natural sources. The Theobroma cacao tree, or cocoa, has recently garnered increasing attention and become the subject of research due to its antioxidant properties, which are related to potential anti-cancer effects. In the past few years, identifying and developing active compounds or extracts from the cocoa bean that might exert anti-cancer effects have become an important area of health- and biomedicine-related research. This review provides an updated overview of T. cacao in terms of its potential anti-cancer compounds and their extraction, in vitro bioassay, purification, and identification. This article also discusses the advantages and disadvantages of the techniques described and reviews the processes for future perspectives of analytical methods from the viewpoint of anti-cancer compound discovery.
Collapse
Affiliation(s)
- Zainal Baharum
- Department of Biomedical Science, Faculty of Medicine and Health Sciences
- Division of Biotechnology, Cocoa Innovation and Technology Centre, Malaysian Cocoa Board, Lot Pt 1261, Nilai Industrial Park, 71800 Nilai, Negeri Sembilan, Malaysia
| | - Abdah Md Akim
- Department of Biomedical Science, Faculty of Medicine and Health Sciences
| | - Taufiq Yap Yun Hin
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | | | - Rosmin Kasran
- Division of Biotechnology, Centre for Cocoa Biotechnology Research, Malaysian Cocoa Board, Kota Kinabalu Industrial Park, 88460 Kota Kinabalu, Sabah, Malaysia
| |
Collapse
|
33
|
Çelik Í, Akkurt M, Akşit H, Erenler R, García-Granda S. Crystal structure and computational study of 3,4-dihydroxy-3-hydroxymethyl-9-methyl-6-methylidene-3a,4,5,6,6a,9,9a,9b-octahydroazuleno[4,5- b]furan-2,8(3 H,7 H)-dione. Acta Crystallogr E Crystallogr Commun 2015; 71:1425-8. [PMID: 26870396 PMCID: PMC4719805 DOI: 10.1107/s2056989015019623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 10/16/2015] [Indexed: 11/17/2022]
Abstract
The cyclopentane ring displays a twist conformation and the γ-lactone ring has an envelope conformation while the cycloheptane ring adopts a twist-chair conformation. O—H⋯O hydrogen bonds link the molecules, forming a three-dimensional network. A comparison between the structural parameters obtained by X-ray structure analysis and theoretical calculations give a satisfactory agreement. In the molecule of title compound, C15H20O6, also known as cynarinin A, the cyclopentane ring having twist conformation and a γ-lactone ring assuming an envelope conformation are trans- and cis-fused, respectively, to a cycloheptane ring adopting a twist-chair conformation. In the crystal, O—H⋯O hydrogen bonds link neighbouring molecules, forming a three-dimensional network. Theoretical calculations of the molecular structure using the CNDO approximation and MOPAC PM3 geometry optimization are in satisfactory agreement with the results of the X-ray structure analysis.
Collapse
|
34
|
Martkoplishvili I, Kvavadze E. Some popular medicinal plants and diseases of the Upper Palaeolithic in Western Georgia. JOURNAL OF ETHNOPHARMACOLOGY 2015; 166:42-52. [PMID: 25769538 DOI: 10.1016/j.jep.2015.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 03/02/2015] [Accepted: 03/02/2015] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Palynological studies of cultural layers of cave sediments have been used in order to better understand traditional practices. The Upper Palaeolithic in Georgia (36,000-11,000 cal. BP) provides a rich source of such material. However, up to day from such sediments the identification of medicinal plants has hardly been achieved. Large quantities of pollen most notably from entomophilous taxa in fossil spectra can serve as a tool to identify traditionally important species. As these plants are used in modern popular medicine on the territory of Georgia (like Achillea millefolium L., Artemisia annua L., Artemisia absinthium L., Centaurea jacea L., Urtica dioica L.) can be served as an indirect evidence for their medicinal relevance from the Palaeolithic Period up to days. Their modern uses may point that the main diseases during the Upper Palaeolithic were the same as today. MATERIALS AND METHODS The Upper Palaeolithic sediments were studied palynologically come from four caves: Dzudzuana, Satsurblia, Kotias Klde and Bondi. Modern sediments were investigated from 6 caves. Fossil and modern samples were taken according to the standard procedure in palynology. The laboratory treatment was carried out as follows: first, 50g of the sample was boiled in 10% KOH. At the second stage, centrifuging of the material in cadmium liquid was performed. At the final stage, acetolysis treatment was used. RESULTS Pollen of A. absinthium L. (Asteraceae), A. annua L. (Asteraceae), A. millefolium L. (Asteraceae), C. jacea L. (Asteraceae), and U. dioica L. (Urticaceae) are identified to species level. This species are not edible and are popular in present-day folk medicine. In the Upper Palaeolithic layers, significant amounts of studies species pollen were recorded in the cave, likely due to their flowering branches being brought in by humans for use. Detailed consideration of the pharmacological characteristics of the examined species showed that almost all of them have anti-inflammatory, antibacterial, antimicrobial and antipyretic activity. CONCLUSION The fossil pollen complex of medicinal herbs, dominated by A. millefolium and Artemisia (A. annua and A. absinthium), suggests that the ancient population living in the studied caves could have been prone to malaria, rheumatism and gastrointestinal diseases. In the Upper Palaeolithic, the population inhabiting cave sites might have suffered from gout and callouses.
Collapse
Affiliation(s)
- Inga Martkoplishvili
- Ilia State University, 3/5 Cholokashvili Street, Tbilisi 0162, Georgia; Institute of Palaeobiology of Georgian National Museum, 3, Purtseladze Street, Tbilisi 0105, Georgia.
| | - Eliso Kvavadze
- Institute of Palaeobiology of Georgian National Museum, 3, Purtseladze Street, Tbilisi 0105, Georgia.
| |
Collapse
|
35
|
Sak K. Cytotoxicity of dietary flavonoids on different human cancer types. Pharmacogn Rev 2014; 8:122-46. [PMID: 25125885 PMCID: PMC4127821 DOI: 10.4103/0973-7847.134247] [Citation(s) in RCA: 297] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 03/27/2014] [Accepted: 06/10/2014] [Indexed: 02/06/2023] Open
Abstract
Flavonoids are ubiquitous in nature. They are also in food, providing an essential link between diet and prevention of chronic diseases including cancer. Anticancer effects of these polyphenols depend on several factors: Their chemical structure and concentration, and also on the type of cancer. Malignant cells from different tissues reveal somewhat different sensitivity toward flavonoids and, therefore, the preferences of the most common dietary flavonoids to various human cancer types are analyzed in this review. While luteolin and kaempferol can be considered as promising candidate agents for treatment of gastric and ovarian cancers, respectively, apigenin, chrysin, and luteolin have good perspectives as potent antitumor agents for cervical cancer; cells from main sites of flavonoid metabolism (colon and liver) reveal rather large fluctuations in anticancer activity probably due to exposure to various metabolites with different activities. Anticancer effect of flavonoids toward blood cancer cells depend on their myeloid, lymphoid, or erythroid origin; cytotoxic effects of flavonoids on breast and prostate cancer cells are highly related to the expression of hormone receptors. Different flavonoids are often preferentially present in certain food items, and knowledge about the malignant tissue-specific anticancer effects of flavonoids could be purposely applied both in chemoprevention as well as in cancer treatment.
Collapse
Affiliation(s)
- Katrin Sak
- Non Government Organization Praeventio, Tartu, Estonia
| |
Collapse
|
36
|
Ribeiro-Varandas E, Ressurreição F, Viegas W, Delgado M. Cytotoxicity of Eupatorium cannabinum L. ethanolic extract against colon cancer cells and interactions with Bisphenol A and Doxorubicin. Altern Ther Health Med 2014; 14:264. [PMID: 25056133 PMCID: PMC4117973 DOI: 10.1186/1472-6882-14-264] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 07/10/2014] [Indexed: 12/18/2022]
Abstract
Background Eupatorium cannabinum L. has long been utilized in traditional medicine, however no information is available regarding cellular effects of full extracts. Here we assessed the effects of E. cannabinum ethanolic extract (EcEE) on the colon cancer line HT29. Potential interactions with bisphenol A (BPA) a synthetic phenolic compound to which humans are generally exposed and a commonly used chemotherapeutic agent, doxorubicin (DOX) were also evaluated. Methods HT29 cells were exposed to different concentrations (0.5 to 50 μg/ml) of EcEE alone or in combination with BPA or DOX. Cell viability was analyzed through resazurin assay. Gene transcription levels for NCL, FOS, p21, AURKA and bcl-xl were determined through qRT-PCR. Cytological analysis included evaluation of nuclear and mitotic anomalies after DAPI staining, immunodetection of histone H3 lysine 9 acetylation (H3K9ac) and assessment of DNA damage by TUNEL assay. Results Severe loss of HT29 cell viability was detected for 50 μg/ml EcEE immediately after 24 h exposure whereas the lower concentrations assayed (0.5, 5 and 25 μg/ml) resulted in significant viability decreases after 96 h. Exposure to 25 μg/ml EcEE for 48 h resulted in irreversible cell damage leading to a drastic decrease in cell viability after 72 h recovery in EcEE-free medium. 48 h 25 μg/ml EcEE treatment also induced alteration of colony morphology, H3K9 hyperacetylation, transcriptional up regulation of p21 and down regulation of NCL, FOS and AURKA, indicating reduced proliferation capacity. This treatment also resulted in drastic mitotic and nuclear disruption accompanied by up-regulation of bcl-xl, limited TUNEL labeling and nuclear size increase, suggestive of a non-apoptocic cell death pathway. EcEE/BPA co-exposure increased mitotic anomalies particularly for the lowest EcEE concentration, although without major effects on viability. Conversely, EcEE/DOX co-exposure decreased cell viability in relation to DOX for all EcEE concentrations, without affecting the DOX-induced cell cycle arrest. Conclusions EcEE has cytotoxic activity on HT29 cancer cells leading to mitotic disruption and non-apoptotic cell death without severe induction of DNA damage. Interaction experiments showed that EcEE can increase BPA aneugenic effects and EcEE synergistic effects with DOX supporting a potential use as adjuvant in chemotherapeutic approaches.
Collapse
|
37
|
Schamp BS, Aarssen LW, Wight S. Effects of 'target' plant species body size on neighbourhood species richness and composition in old-field vegetation. PLoS One 2013; 8:e82036. [PMID: 24349177 PMCID: PMC3862571 DOI: 10.1371/journal.pone.0082036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 10/21/2013] [Indexed: 11/23/2022] Open
Abstract
Competition is generally regarded as an important force in organizing the structure of vegetation, and evidence from several experimental studies of species mixtures suggests that larger mature plant size elicits a competitive advantage. However, these findings are at odds with the fact that large and small plant species generally coexist, and relatively smaller species are more common in virtually all plant communities. Here, we use replicates of ten relatively large old-field plant species to explore the competitive impact of target individual size on their surrounding neighbourhoods compared to nearby neighbourhoods of the same size that are not centred by a large target individual. While target individuals of the largest of our test species, Centaurea jacea L., had a strong impact on neighbouring species, in general, target species size was a weak predictor of the number of other resident species growing within its immediate neighbourhood, as well as the number of resident species that were reproductive. Thus, the presence of a large competitor did not restrict the ability of neighbouring species to reproduce. Lastly, target species size did not have any impact on the species size structure of neighbouring species; i.e. they did not restrict smaller, supposedly poorer competitors, from growing and reproducing close by. Taken together, these results provide no support for a size-advantage in competition restricting local species richness or the ability of small species to coexist and successfully reproduce in the immediate neighbourhood of a large species.
Collapse
Affiliation(s)
- Brandon S. Schamp
- Department of Biology, Algoma University, Sault Ste. Marie, Canada
- * E-mail:
| | | | | |
Collapse
|
38
|
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.
Collapse
Affiliation(s)
- Tanja Milošević Ifantis
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece
| | | | | | | |
Collapse
|