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Jan S, Iram S, Bashir O, Shah SN, Kamal MA, Rahman S, Kim J, Jan AT. Unleashed Treasures of Solanaceae: Mechanistic Insights into Phytochemicals with Therapeutic Potential for Combatting Human Diseases. PLANTS (BASEL, SWITZERLAND) 2024; 13:724. [PMID: 38475570 DOI: 10.3390/plants13050724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 03/14/2024]
Abstract
Plants that possess a diverse range of bioactive compounds are essential for maintaining human health and survival. The diversity of bioactive compounds with distinct therapeutic potential contributes to their role in health systems, in addition to their function as a source of nutrients. Studies on the genetic makeup and composition of bioactive compounds have revealed them to be rich in steroidal alkaloids, saponins, terpenes, flavonoids, and phenolics. The Solanaceae family, having a rich abundance of bioactive compounds with varying degrees of pharmacological activities, holds significant promise in the management of different diseases. Investigation into Solanum species has revealed them to exhibit a wide range of pharmacological properties, including antioxidant, hepatoprotective, cardioprotective, nephroprotective, anti-inflammatory, and anti-ulcerogenic effects. Phytochemical analysis of isolated compounds such as diosgenin, solamargine, solanine, apigenin, and lupeol has shown them to be cytotoxic in different cancer cell lines, including liver cancer (HepG2, Hep3B, SMMC-772), lung cancer (A549, H441, H520), human breast cancer (HBL-100), and prostate cancer (PC3). Since analysis of their phytochemical constituents has shown them to have a notable effect on several signaling pathways, a great deal of attention has been paid to identifying the biological targets and cellular mechanisms involved therein. Considering the promising aspects of bioactive constituents of different Solanum members, the main emphasis was on finding and reporting notable cultivars, their phytochemical contents, and their pharmacological properties. This review offers mechanistic insights into the bioactive ingredients intended to treat different ailments with the least harmful effects for potential applications in the advancement of medical research.
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Affiliation(s)
- Saima Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, Jammu and Kashmir, India
| | - Sana Iram
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Ommer Bashir
- Department of School Education, Srinagar 190001, Jammu and Kashmir, India
| | - Sheezma Nazir Shah
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, Jammu and Kashmir, India
| | - Mohammad Azhar Kamal
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin AbdulAziz University, Alkharj 11942, Saudi Arabia
| | - Safikur Rahman
- Department of Botany, Munshi Singh College, BR Ambedkar Bihar University, Muzaffarpur 845401, Bihar, India
| | - Jihoe Kim
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Arif Tasleem Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, Jammu and Kashmir, India
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Othman A, Amen Y, Inoue Y, Shimizu K. Phytochemical Analysis, Anti-inflammatory, and Anticancer Activities of the Halophyte Herb Bassia indica. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221137412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bassia indica (Wight) A.J. Scott, family Amaranthaceae, is a halophyte herb growing in extreme environments and hence deemed as a potential economic source of bioactive chemicals with functional properties. In our study, 25 compounds were obtained from B. indica. We aimed to assess the inhibitory effect of the methanol extract of B. indica and its isolated compounds on COX-2 and cytotoxicity activity against MCF-7, OVK-18, HepG2, and HCT116 tumor cells. Among the isolates, the triterpene oleanane saponin (23) displayed promising anti-inflammatory activity with an IC50 = 3.05 ± 0.15 μg/mL. Additionally, N- trans-feruloyl tyramine (11) exhibited significant cytotoxicity to OVK-18 with IC50 = 1.74 ± 1.56 μg/mL, whereas 6,7-dihydroxy coumarin (7) exhibited potent inhibition against the MCF-7 cell line with IC50 = 1.47 ± 0.22 μg/mL. Interestingly, compounds 1 and 25 exhibited remarkable cytotoxicity against HepG2 and HCT116 cells with IC50 < 0.1 μg/mL, while compounds 2, 4, 5, 6, and 9 exerted potent cytotoxicity against HepG2. Finally, B. indica is a potential source of candidate compounds for the development of anti-inflammatory and antitumor therapies.
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Affiliation(s)
- Ahmed Othman
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Yhiya Amen
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Yuka Inoue
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kuniyoshi Shimizu
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Othman A, Amen Y, Nagata M, Shimizu K. Undescribed glucosylceramide, flavonol triglycoside, and oleanane saponin from the halophyte Agathophora alopecuroides: Promising candidates for stimulating ceramide synthesis. PHYTOCHEMISTRY 2022; 202:113320. [PMID: 35843358 DOI: 10.1016/j.phytochem.2022.113320] [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: 04/06/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
The phytochemical study of Agathophora alopecuroides (Chenopodiaceae) led to the isolation of previously undescribed glucosylceramide, flavonol triglycoside, and triterpene oleanane saponin, together with eight known compounds. Their structures were elucidated using NMR analysis and HR-MS as (2'R, 12E) N-[(2S, 3S, 4R)-1-(β-D-glucopyranosyloxy)-3,4-dihydroxy-octadec-2-yl]-2-hydroxytetracos-12-enamide, namely Agathophamide A; isorhamnetin-3-O-[β-D-xylopyranosyl-(1→3)-α-L-rhamnopyranosyl-(1→6)]-β-D-galactopyranoside, namely Agathophoroside A; and 3-O-[4'-(β-D-xylopyranosyl)-β-D-glucuronopyranosyl]-28-O-β-D-glucopyranosyl-olean-12-en-3β-ol-28-oic acid, namely Solysaponin A. We evaluated the effect of extract and isolates on ceramide levels via the up-regulated expression of the enzyme for ceramide synthesis in HaCaT keratinocytes. Interestingly, the study results revealed that the methanol extract of A. alopecuroides, together with some isolated compounds significantly up-regulated the mRNA expression of ceramide synthase-3 by 1.2- to 4.3-fold compared with the control in HaCaT cells. These findings indicate that the halophyte A. alopecuroides is a promising source of candidate compounds that can contribute to ceramide synthesis via the up-regulated expression levels of ceramide synthase-3 in the ceramide synthesis pathway.
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Affiliation(s)
- Ahmed Othman
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan; Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo, 11884, Egypt
| | - Yhiya Amen
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Maki Nagata
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kuniyoshi Shimizu
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, 819-0395, Japan.
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Parvez MK, Al-Dosari MS, Tabish Rehman M, Al-Rehaily AJ, Alqahtani A, Alajmi MF. The anti-hepatitis B virus and anti-hepatotoxic efficacies of solanopubamine, a rare alkaloid from Solanum schimperianum. Saudi Pharm J 2022; 30:359-368. [PMID: 35527834 PMCID: PMC9068741 DOI: 10.1016/j.jsps.2022.02.001] [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: 11/10/2021] [Accepted: 02/02/2022] [Indexed: 11/02/2022] Open
Abstract
Chronic liver disease caused by hepatitis B virus (HBV) remains an important health issue. Though there are effective HBV-polymerase inhibitors (e.g., lamivudine), their prolonged use leads to emergence of drug-resistant (polymerase mutant) strains. Several herbal formulations and phytochemicals have been therefore, reported as potential anti-HBV agents with no sign of resistance in experimental and clinical settings. In this study, we assessed the anti-HBV as well as hepatoprotective salutations of solanopubamine, a rare alkaloid isolated from S. schimperianum. In cultured HepG2.2.15 cells, solanopubamine showed marked anti-HBV activity in a time and dose-dependent manner. Solanopubamine (30 μM) efficiently inhibited HBsAg and HBeAg expressions by 66.5%, 70.5%, respectively as compared to 82.5% and 86.5% respective inhibition by lamivudine (2 μM) at day 5. Molecular docking analyses of solanopubamine revealed formations of stable complexes with lamivudine-sensitive as well as lamivudine-resistant polymerase through interactions of catalytic ‘YMDD/YIDD’ motif residues. Moreover, solanopubamine attenuated DCFH-induced oxidative and apoptotic damage and restored HepG2 cell viability by 28.5%, and downregulated caspase-3/7 activations by 33%. Further docking analyses of solanopubamine showed formation of stable complexes with caspase-3/7. Taken together, our data demonstrates promising anti-HBV and anti-hepatotoxic therapeutic potential of solanopubamine, and warrants further molecular and pharmacological studies.
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Methylated Flavonols from Amomum koenigii J.F.Gmel. and Their Antimicrobial and Antioxidant Activities. Biochem Res Int 2020; 2020:4812312. [PMID: 32148963 PMCID: PMC7049450 DOI: 10.1155/2020/4812312] [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: 11/07/2019] [Revised: 12/21/2019] [Accepted: 01/09/2020] [Indexed: 11/18/2022] Open
Abstract
Methylated flavonols form a special group with modulating biological activities in comparison with kaempferol and quercetin. The present study isolated ten compounds including two kaempferol methyl ethers: 5-hydroxy-3,7,4′-trimethoxyflavone (1), 3-hydroxy-5,7,4′-trimethoxyflavone (6); four quercetin methyl ethers: retusin (5-hydroxy-3,7,3′,4′-tetramethoxyflavone) (4), 3,5-dihydroxy-7,3′,4′-trimethoxyflavone (5), 3,4′-dihydroxy-5,7,3′-trimethoxyflavone (7), and 3,5,7,3′,4′-pentamethoxyflavone (9); β-sitosterol (2); 5-hydroxy-1-(4′-hydroxyphenyl)eicosan-3-one (3); p-hydroquinone (8); and vanillic acid (10) from the rhizomes and fruit of Amomum koenigii J.F.Gmel. (Zingiberaceae). Their structures were determined by MS, NMR, and X-ray spectroscopic techniques. Among the methylated flavonols, 1, 4–7, and 9 were isolated for the first time from the rhizomes, while 1, 4, and 5 were isolated from the fruit. Compounds 2, 3, 7, 8, and 10 were reported for the first time from the species. Three main methylated flavonols 1, 4, and 5 were quantitatively analyzed in the rhizomes of A. koenigii by RP-HPLC-DAD; their contents were determined to be 1.81% (1), 1.38% (4), and 1.76% (5). The antimicrobial assay against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Staphylococcus aureus, Aspergillus niger, Fusarium oxysporum, Candida albicans, and Saccharomyces cerevisiae and antioxidant DPPH scavenging test were performed for the isolated methylated flavonols.
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Aydoğan F, Baykan Ş, Debeleç Bütüner B. Cytotoxic Activity of Sesquiterpenoids Isolated from Endemic Ferula tenuissima Hub.-Mor & Peşmen. Turk J Pharm Sci 2019; 16:476-480. [PMID: 32454752 DOI: 10.4274/tjps.galenos.2018.23356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/06/2018] [Indexed: 12/01/2022]
Abstract
Objectives This was a phytochemical study of endemic Ferula tenuissima roots and determined the cytotoxic activity of pure compounds on PC-3. Materials and Methods Air-dried and powdered roots of F. tenuissima (1 kg) were extracted consecutively with n-hexane, chloroform (CHCl3), and methanol (MeOH) (3×2 L, each) by sonication at 30°C for 24 h. The extracts were then filtered. The solvents were separately evaporated under reduced pressure to dryness. The compounds were isolated by chromatographic methods and their structures were determined by spectral methods (1D and 2D NMR and LC-MS). The compounds were tested for their cytotoxic activities versus the PC-3 cell line by WST assay. Results A phytochemical investigation of the dried roots of endemic F. tenuissima was performed and three sesquiterpene esters were isolated. The daucane-type sesquiterpenes teferidin, ferutinin, and elaeochytrin-A were identified. In the bioactivity study, ferutinin exhibited the highest cytotoxic activity, with an IC50 value of 19.7 μM. Conclusion The results indicate that the main compounds of F. tenuissima roots are daucane sesquiterpenes and ferutinin has a potential effect on PC-3 cells.
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Affiliation(s)
- Fadime Aydoğan
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Botany, İzmir, Turkey
| | - Şura Baykan
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Botany, İzmir, Turkey
| | - Bilge Debeleç Bütüner
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Biotechnology, İzmir, Turkey
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Mbaveng AT, Damen F, Çelik İ, Tane P, Kuete V, Efferth T. Cytotoxicity of the crude extract and constituents of the bark of Fagara tessmannii towards multi-factorial drug resistant cancer cells. JOURNAL OF ETHNOPHARMACOLOGY 2019; 235:28-37. [PMID: 30703492 DOI: 10.1016/j.jep.2019.01.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/06/2019] [Accepted: 01/27/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Fagara tessmannii Engl. is an African medicinal plant used in Cameroonian traditional medicine to treat various types of cancers. AIM OF THE STUDY This work was designed to determine the cytotoxicity of the crude extract (FTB), fractions (FTBa-d) and compounds isolated from the bark of Fagara tessmannii, namely lupeol (1), fagaramide (2), zanthoxyline (3), hesperidin (4), nitidine chloride (5), fagaridine chloride (6), and β-sitosterol-3-O-β-D-glucopyranoside (7). The study was extended to the mode of induction of apoptosis by FTB, compounds 5 and 6. MATERIALS AND METHODS The resazurin reduction assay was used to evaluate the cytotoxicity of samples. The cell cycle, apoptosis, mitochondrial membrane potential (MMP), and reactive oxygen species (ROS) were measured by flow cytometry. Column chromatography was used for the purification of FTB. Meanwhile, nuclear magnetic resonance (NMR) spectroscopic analysis was applied for structural elucidation. RESULTS The crude extract, fractions FTBa, FTBc, FTBd as well as compounds 5 and 6 revealed cytotoxicity towards the 9 tested cancer cell lines. The IC50 values ranged from 17.34 µg/mL (towards U87MG.ΔEGFR glioblastoma cells) to 40.68 µg/mL (against CCRF-CEM leukemia cells) for FTB, from 16.78 µg/mL (towards U87. MGΔEGFR cells) to 37.42 µg/mL (against CEM/ADR5000 leukemia cells) for FTBa, from 19.47 µg/mL (towards U87. MG glioblastoma cells) to 41.62 µg/mL (against CCRF-CEM cells) for FTBc, from 14.17 µg/mL (against HCT116p53-/- colon adenocarcinoma cells) to 22.28 µg/mL (towards CEM-ADR5000 cells) for FTBd, from 1.75 µM (against CCRF-CEM cells) to 23.52 µM (against U87. MGΔEGFR cells) for compound 5, from 1.69 µM (against CCRF-CEM cells) to 22.06 µM (against HepG2 hepatocarcinoma cells) for compound 6 and from 0.02 µM (against CCRF-CEM cells) to 122.96 µM (against CEM/ADR5000 cells) for doxorubicin. FTB induced apoptosis in CCRF-CEM cells mediated by enhanced ROS production. Compound 5 induced apoptosis through caspases activation and increase ROS production. Meanwhile, 6 induced apoptosis mediated by caspases activation, MMP alteration and enhanced ROS production. CONCLUSION Fagara tessmannii as well as its constituents 5 and 6 revealed considerable cytotoxicity and may be suitable candidates deserving to be further explored to develop new anticancer drugs to combat sensitive and resistant phenotypes.
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Affiliation(s)
- Armelle T Mbaveng
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, University of Mainz, Staudinger Weg 5, 55128 Mainz, Germany; Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Francois Damen
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - İlhami Çelik
- Department of Chemistry, Faculty of Science, Eskişehir Tecnical University, 26470 Eskişehir, Turkey
| | - Pierre Tane
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Victor Kuete
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, University of Mainz, Staudinger Weg 5, 55128 Mainz, Germany; Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmacy and Biochemistry, University of Mainz, Staudinger Weg 5, 55128 Mainz, Germany.
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Kaunda JS, Zhang YJ. The Genus Solanum: An Ethnopharmacological, Phytochemical and Biological Properties Review. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:77-137. [PMID: 30868423 PMCID: PMC6426945 DOI: 10.1007/s13659-019-0201-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 02/27/2019] [Indexed: 05/08/2023]
Abstract
Over the past 30 years, the genus Solanum has received considerable attention in chemical and biological studies. Solanum is the largest genus in the family Solanaceae, comprising of about 2000 species distributed in the subtropical and tropical regions of Africa, Australia, and parts of Asia, e.g., China, India and Japan. Many of them are economically significant species. Previous phytochemical investigations on Solanum species led to the identification of steroidal saponins, steroidal alkaloids, terpenes, flavonoids, lignans, sterols, phenolic comopunds, coumarins, amongst other compounds. Many species belonging to this genus present huge range of pharmacological activities such as cytotoxicity to different tumors as breast cancer (4T1 and EMT), colorectal cancer (HCT116, HT29, and SW480), and prostate cancer (DU145) cell lines. The biological activities have been attributed to a number of steroidal saponins, steroidal alkaloids and phenols. This review features 65 phytochemically studied species of Solanum between 1990 and 2018, fetched from SciFinder, Pubmed, ScienceDirect, Wikipedia and Baidu, using "Solanum" and the species' names as search terms ("all fields").
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Affiliation(s)
- Joseph Sakah Kaunda
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, People's Republic of China
- Graduate School of the Chinese Academy of Sciences, Beijing, 100039, People's Republic of China
| | - Ying-Jun Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, People's Republic of China.
- Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
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Alajmi MF, Alam P, Rehman MT, Husain FM, Khan AA, Siddiqui NA, Hussain A, Kalam MA, Parvez MK. Interspecies Anticancer and Antimicrobial Activities of Genus Solanum and Estimation of Rutin by Validated UPLC-PDA Method. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:6040815. [PMID: 30057644 PMCID: PMC6051100 DOI: 10.1155/2018/6040815] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/17/2018] [Accepted: 06/05/2018] [Indexed: 12/21/2022]
Abstract
Solanaceae is one of the highly diverse plant families of which Solanum is the largest genera (1700 species) containing several pharmacological properties like anticancer and antimicrobial. This motivated us to explore the anticancer (against HepG2, HEK-293, and MCF-7 cells) and antimicrobial (against S. aureus, E. coli, P. aeruginosa, and C. albicans) properties of S. schimperianum, S. villosum, S. coagulans, S. glabratum, S. incanum, and S. nigrum along with rutin estimation by UPLC-PDA method. Of the studied Solanum extracts, S. nigrum exhibited significant cytotoxic property against HepG2 (IC50: 20.4 μg/mL) and MCF-7 (IC50: 30.1 μg/mL); S. coagulans showed toxicity against HepG2 (IC50: 28.4 μg/mL) and HEK-293 cells (IC50: 25.7 μg/mL) compared to 5-Fluorouracil (standard). Compared to these, extracts of S. coagulans and S. glabratum exhibited relatively high antimicrobial potency (MIC: 0.4-1.6 mg/mL). Nonetheless, all Solanum extracts significantly reduced the biofilm against PAO1-strain. Rutin was detected in all extracts with the highest content (53.79 μg/mg) in S. coagulans that supported its strong antimicrobial and anticancer properties. Molecular docking analysis showing strong binding of rutin with human DNA and proteins (DNA Topoisomerase IIα and E. coli DNA gyrase B) supported the anticancer and antimicrobial activities of Solanum species.
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Affiliation(s)
- Mohamed Fahad Alajmi
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Perwez Alam
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Md. Tabish Rehman
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Fohad Mabood Husain
- Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Azmat Ali Khan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia
| | - Nasir Ali Siddiqui
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Afzal Hussain
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Mohd. Abul Kalam
- Nanomedicine Research Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Khalid Parvez
- Department of Pharmacognosy, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
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He S, Ou R, Wang W, Ji L, Gao H, Zhu Y, Liu X, Zheng H, Liu Z, Wu P, Lu L. Camptosorus sibiricus rupr aqueous extract prevents lung tumorigenesis via dual effects against ROS and DNA damage. JOURNAL OF ETHNOPHARMACOLOGY 2018; 220:44-56. [PMID: 29258855 DOI: 10.1016/j.jep.2017.12.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Camptosorus sibiricus Rupr (CSR) is a widely used herbal medicine with antivasculitis, antitrauma, and antitumor effects. However, the effect of CSR aqueous extract on B[a]P-initiated tumorigenesis and the underlying mechanism remain unclear. Moreover, the compounds in CSR aqueous extract need to be identified and structurally characterized. AIM OF THE STUDY We aim to investigate the chemopreventive effect of CSR and the underlying molecular mechanism. MATERIALS AND METHODS A B[a]P-stimulated normal cell model (BEAS.2B) and lung adenocarcinoma animal model were established on A/J mice. In B[a]P-treated BEAS.2B cells, the protective effects of CSR aqueous extract on B[a]P-induced DNA damage and ROS production were evaluated through flow cytometry, Western blot, real-time quantitative PCR, single-cell gel electrophoresis, and immunofluorescence. Moreover, a model of B[a]P-initiated lung adenocarcinoma was established on A/J mice to determine the chemopreventive effect of CSR in vivo. The underlying mechanism was analyzed via immunohistochemistry and microscopy. Furthermore, the new compounds in CSR aqueous extract were isolated and structurally characterized using IR, HR-ESI-MS, and 1D and 2D NMR spectroscopy. RESULTS CSR effectively suppressed ROS production by re-activating Nrf2-mediated reductases HO-1 and NQO-1. Simultaneously, CSR attenuated the DNA damage of BEAS.2B cells in the presence of B[a]P. Moreover, CSR at 1.5 and 3 g/kg significantly suppressed tumorigenesis with tumor inhibition ratios of 36.65% and 65.80%, respectively. The tumor volume, tumor size, and multiplicity of B[a]P-induced lung adenocarcinoma were effectively decreased by CSR in vivo. After extracting and identifying the compounds in CSR aqueous extract, three new triterpene saponins were isolated and characterized structurally. CONCLUSIONS CSR aqueous extract prevents lung tumorigenesis by exerting dual effects against ROS and DNA damage, suggesting that CSR is a novel and effective agent for B[a]P-induced carcinogenesis. Moreover, by isolating and structurally characterizing three new triterpene saponins, our study further standardized the quality of CSR aqueous extract, which could widen CSR clinical applications.
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Affiliation(s)
- Shugui He
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Rilan Ou
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Wensheng Wang
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Liyan Ji
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Hui Gao
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Yuanfeng Zhu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Xiaomin Liu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Hongming Zheng
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China
| | - Zhongqiu Liu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute For Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China
| | - Peng Wu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China.
| | - Linlin Lu
- International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, 232 Waihuan Dong Road, Guangzhou, Guangdong 510006, China; State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute For Applied Research in Medicine and Health, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, China.
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11
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Rios R, Silva HBFD, Carneiro NVQ, Pires ADO, Carneiro TCB, Costa RDS, Marques CR, Machado MSS, Velozo EDS, Silva TMGD, Silva TMSD, Conceição ADS, Alcântara-Neves NM, Figueiredo CA. Solanum paniculatum L. decreases levels of inflammatory cytokines by reducing NFKB, TBET and GATA3 gene expression in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2017; 209:32-40. [PMID: 28729226 DOI: 10.1016/j.jep.2017.07.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 06/20/2017] [Accepted: 07/11/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Solanum paniculatum L., popularly known as jurubeba, is a common subtropical plant from Brazil, Paraguay, Bolivia and Argentina, that is used in folk medicine for the treatment of anemia, gastrointestinal disorders and inflammatory conditions in general. In addition to that, an ethnobotanical survey in "Todos os Santos" Bay have pointed out S. paniculatum as an herb to treat asthma. Previous publications have shown that S. paniculatum possesses antibiotic, antioxidant and modulatory effects on gastric acid secretion; however, its anti-inflammatory potential remains unexplored. AIM OF THE STUDY Herein, we analyzed the S. paniculatum fruits hexane extract (SpE) for the presence of stigmasterol and β-sitosterol and investigated the anti-inflammatory effect of SpE in vitro. MATERIALS AND METHODS SpE was subjected to high-performance liquid chromatography (HPLC) for standardization and quantification of stigmasterol and β-sitosterol. Spleen cells from BALB/c mice were cultivated and stimulated with pokeweed mitogen and also exposed to 15, 30 and 60µg/mL of SpE. Following treatment, levels of IFN-γ, IL-4 and IL-10 in the culture supernatants were assessed by ELISA. We also evaluated nitric oxide (NO) production by murine LPS-stimulated peritoneal macrophages using the Griess technique. In addition, the ability of SpE to stabilize membranes was assessed using a model of hemolysis induced by heat on murine erythrocytes. Gene expression of Th1-cell-specific Tbx21 transcription factor (TBET), zinc-finger transcription factor-3 (GATA3), and nuclear factor-κB (NFKB) in murine spleen cells were assessed by quantitative Polymerase Chain Reaction (qRT-PCR). RESULTS SpE at 15, 30 and 60µg/mL significantly attenuated cell proliferation, decreased IL-4 release, reduced NO production and improved erythrocyte membrane stabilization in a concentration-dependent manner. SpE was also able to decrease the release of IFN-γ without altering IL-10 levels. The mechanism whereby SpE decreased inflammatory markers may be related to the reduction of NFKB, TBET and GATA3 gene expression. CONCLUSIONS This study is the first to test the anti-inflammatory action of S. paniculatum. Herein, we provided evidence for the popular use of S. paniculatum in inflammatory conditions. Additional studies must be conducted to further explore the anti-inflammatory potential of SpE and to elucidate possible clinical applications.
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Affiliation(s)
- Raimon Rios
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Campus Canela, 40110100 Salvador, Bahia, Brazil
| | | | | | - Anaque de Oliveira Pires
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Campus Canela, 40110100 Salvador, Bahia, Brazil
| | | | - Ryan Dos Santos Costa
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Campus Canela, 40110100 Salvador, Bahia, Brazil
| | - Cintia Rodrigues Marques
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Campus Canela, 40110100 Salvador, Bahia, Brazil
| | | | - Eudes da Silva Velozo
- Departamento do Medicamento, Faculdade de Farmácia, Universidade Federal da Bahia, Campus Ondina, 40170115 Salvador, Bahia, Brazil
| | - Telma M G da Silva
- Departamento de Ciências Moleculares, Universidade Federal Rural de Pernambuco, 52171900 Recife, Pernambuco, Brazil
| | - Tania M S da Silva
- Departamento de Ciências Moleculares, Universidade Federal Rural de Pernambuco, 52171900 Recife, Pernambuco, Brazil
| | - Adilva de Souza Conceição
- Departamento de Educação, Universidade do Estado da Bahia, Campus VIII, 48608240 Paulo Afonso, Bahia, Brazil
| | - Neuza Maria Alcântara-Neves
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Campus Canela, 40110100 Salvador, Bahia, Brazil
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12
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Lefahal M, Zaabat N, Djarri L, Benahmed M, Medjroubi K, Laouer H, Akkal S. Evaluation of the antioxidant activity of extracts and flavonoids obtained from Bunium alpinum Waldst. & Kit. (Apiaceae) and Tamarix gallica L. (Tamaricaceae). CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2017. [DOI: 10.1515/cipms-2017-0001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The aim of the present work was to evaluate the antioxidant activity of extracts and four flavonoids that had been isolated from the aerial parts of Bunium alpinum Waldst. et Kit. (Apiaceae) and Tamarix gallica L. (Tamaricaceae). In this work, the four flavonoids were first extracted via various solvents, then purified through column chromatography (CC) and thin layer chromatography (TLC). The four compounds were subsequently identified by spectroscopic methods, including: UV, mass spectrum 1H NMR and 13C NMR. The EtOAc extract of Bunium alpinum Waldst. et Kit yielded quercetin-3-O-β-glucoside (3’,4’,5,7-Tetrahydroxyflavone-3-β-D-glucopyranoside) (1), while the EtOAc and n-BuOH extracts of Tamarix gallica L. afforded 3,5,3’-trihydroxy-7,4’-dimethoxyflavone (2), 3,5,7-trihydroxy-4’-methoxyflavone (3) and 5-hydroxy-3,7,4’-trimethoxyflavone (4). The antioxidant activity of the extracts and the flavonoids were then evaluated through DPPH free radical-scavenging assay. Of all studied extracts, the n-Butanol extract of Bunium alpinum (EC50 = 1.84 μg/ml) showed the best antioxidant activity against (DPPH). In contrast, the isolates demonstrated varying degrees of antioxidant activity: compound (1) was the more active (EC50 = 0.28 μg/ml), followed by compound (3) and (2) (EC50 = 0.309μg/ml, EC50 = 0.406 μg/ml, respectively), compound (4) showed the lowest activity. All the isolated flavonoids exhibited antioxidant activity, but this was lower than the control (Trolox). In conclusion, due to the presence of flavonoids in their ariel parts, the studied plants could be natural sources of several important antioxidant agents
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Affiliation(s)
- Mostefa Lefahal
- Université de Constantine 1, Unité de Recherche Valorisation des Ressources Naturelles Molécules Bioactives et Analyses Physico- Chimiques et Biologiques, Département de Chimie, Facultés des Sciences Exactes, Constantine , Algérie
| | - Nabila Zaabat
- Université de Constantine 1, Unité de Recherche Valorisation des Ressources Naturelles Molécules Bioactives et Analyses Physico- Chimiques et Biologiques, Département de Chimie, Facultés des Sciences Exactes, Constantine , Algérie
| | - Lakhdar Djarri
- Université de Constantine 1, Unité de Recherche Valorisation des Ressources Naturelles Molécules Bioactives et Analyses Physico- Chimiques et Biologiques, Département de Chimie, Facultés des Sciences Exactes, Constantine , Algérie
| | - Merzoug Benahmed
- Université Larbi Tébessi Tébessa Laboratoire des Molécules et Applications, Tébessa , Algérie
| | - Kamel Medjroubi
- Université de Constantine 1, Unité de Recherche Valorisation des Ressources Naturelles Molécules Bioactives et Analyses Physico- Chimiques et Biologiques, Département de Chimie, Facultés des Sciences Exactes, Constantine , Algérie
| | - Hocine Laouer
- Université Ferhat Abbas Sétif 1, Laboratoire de Valorisation des Ressources Naturelles Biologiques. Le Département de Biologie et d'écologie Végétales, Sétif , Algérie
| | - Salah Akkal
- Université de Constantine 1, Unité de Recherche Valorisation des Ressources Naturelles Molécules Bioactives et Analyses Physico- Chimiques et Biologiques, Département de Chimie, Facultés des Sciences Exactes, Constantine , Algérie
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13
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Siddiqui NA, Parvez MK, Al-Rehaily AJ, Al Dosari MS, Alam P, Shakeel F, Al Harbi HA. High-performance thin layer chromatography based assay and stress study of a rare steroidal alkaloid solanopubamine in six species of Solanum grown in Saudi Arabia. Saudi Pharm J 2017; 25:184-195. [PMID: 28344468 PMCID: PMC5355553 DOI: 10.1016/j.jsps.2016.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 05/15/2016] [Indexed: 11/04/2022] Open
Abstract
The present study describes a method developed for quantification and stability study of a rare steroidal alkaloid solanopubamine (SPN) in aerial parts of six different species of genus Solanum extracted with two different solvents. The Solanum species selected for investigation include S. schimperianum (SS), S. villosum (SV), S. coagulans (SC), S. glabratum (SG), S. incanum (SI) and S. nigrum (SN). The estimation of SPN was done by a validated high-performance thin layer chromatography method. The developed chromatographic system was found to give a sharp spot for solanopubamine at Rf = 0.39 ± 0.01. The steroidal alkaloid SPN was observed to be present only in extracts of aerial parts of S. schimperianum. The sensitivity of developed method produced 40 ng and 115 ng band−1, respectively as LOD and LOQ values. The percentage yield of SPN in aerial parts of S. schimperianum extracted by ethanol (95%) only and a mixture of ethanol and ammonium hydroxide (6:4) was found to be 1.03 w/w and 2.09 w/w, respectively. Stability studies of SPN exhibited the maximum (100%) degradation in an alkaline environment and H2O2 treated samples and 61.4% in acidic conditions. The SPN was found to be significantly stable against UV exposure, photo-oxidation and at room temperature while 13.83% and 57.88% destruction has been observed when exposed to dry heat at 40 °C and 60 °C, respectively.
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Affiliation(s)
- Nasir A Siddiqui
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad K Parvez
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Adnan J Al-Rehaily
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed S Al Dosari
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Perwez Alam
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Faiyaz Shakeel
- Center of Excellence in Biotechnology Research, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Hattan A Al Harbi
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Awouafack MD, Tchuenguem RT, Ito T, Dzoyem JP, Tane P, Morita H. A New Isoflavanol from the Fruits ofKotschya strigosa(Fabaceae). Helv Chim Acta 2016. [DOI: 10.1002/hlca.201500508] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maurice D. Awouafack
- Laboratory of Natural Products Chemistry; Department of Chemistry; Faculty of Science; University of Dschang; P.O. Box 67 Dschang Cameroon
| | - Roland T. Tchuenguem
- Department of Biochemistry; Faculty of Science; University of Dschang; P.O. Box 67 Dschang Cameroon
| | - Takuya Ito
- Institute of Natural Medicine; University of Toyama; 2630-Sugitani Toyama 930-0194 Japan
| | - Jean P. Dzoyem
- Department of Biochemistry; Faculty of Science; University of Dschang; P.O. Box 67 Dschang Cameroon
| | - Pierre Tane
- Laboratory of Natural Products Chemistry; Department of Chemistry; Faculty of Science; University of Dschang; P.O. Box 67 Dschang Cameroon
| | - Hiroyuki Morita
- Institute of Natural Medicine; University of Toyama; 2630-Sugitani Toyama 930-0194 Japan
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15
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Cretton S, Dorsaz S, Azzollini A, Favre-Godal Q, Marcourt L, Ebrahimi SN, Voinesco F, Michellod E, Sanglard D, Gindro K, Wolfender JL, Cuendet M, Christen P. Antifungal Quinoline Alkaloids from Waltheria indica. JOURNAL OF NATURAL PRODUCTS 2016; 79:300-307. [PMID: 26848627 DOI: 10.1021/acs.jnatprod.5b00896] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Chemical investigation of a dichloromethane extract of the aerial parts of Waltheria indica led to the isolation and characterization of five polyhydroxymethoxyflavonoids, namely, oxyanin A (1), vitexicarpin (3), chrysosplenol E (4), flindulatin (5), 5-hydroxy-3,7,4'-trimethoxyflavone (6), and six quinolone alkaloids, waltheriones M-Q (2, 7, 8, 10, 11) and 5(R)-vanessine (9). Among these, compounds 2, 7, 8, 10, and 11 have not yet been described in the literature. Their chemical structures were established by means of spectroscopic data interpretation including (1)H and (13)C, HSQC, HMBC, COSY, and NOESY NMR experiments and UV, IR, and HRESIMS. The absolute configurations of the compounds were established by ECD. The isolated constituents and 10 additional quinoline alkaloids previously isolated from the roots of the plant were evaluated for their in vitro antifungal activity against the human fungal pathogen Candida albicans, and 10 compounds (7, 9, 11-16, 18, 21) showed growth inhibitory activity on both planktonic cells and biofilms (MIC ≤ 32 μg/mL). Their spectrum of activity against other pathogenic Candida species and their cytotoxicity against human HeLa cells were also determined. In addition, the cytological effect of the antifungal isolated compounds on the ultrastructure of C. albicans was evaluated by transmission electron microscopy.
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Affiliation(s)
- Sylvian Cretton
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Stéphane Dorsaz
- Institute of Microbiology, University of Lausanne and University Hospital Center , Lausanne, Switzerland
| | - Antonio Azzollini
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Quentin Favre-Godal
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University , G. C., Evin, Tehran, Iran
| | - Francine Voinesco
- Agroscope, Institute for Plant Production Sciences IPS, Mycology and Biotechnology , Route de Duiller 50, CP 1012, 1260 Nyon, Switzerland
| | - Emilie Michellod
- Agroscope, Institute for Plant Production Sciences IPS, Mycology and Biotechnology , Route de Duiller 50, CP 1012, 1260 Nyon, Switzerland
| | - Dominique Sanglard
- Institute of Microbiology, University of Lausanne and University Hospital Center , Lausanne, Switzerland
| | - Katia Gindro
- Agroscope, Institute for Plant Production Sciences IPS, Mycology and Biotechnology , Route de Duiller 50, CP 1012, 1260 Nyon, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Muriel Cuendet
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Philippe Christen
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne , Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
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16
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DongmoMafodong FL, Tsopmo A, Awouafack MD, Roland TT, Dzoyem JP, Tane P. A Novel Ellagic Acid Derivative from Desbordesia glaucescens. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
One novel ellagic acid derivative, desglauside (1), was isolated from the leaves of Desbordesia glaucescens together with three known compounds [3 ’,4′-di-O-methylellagic acid (2), oleanolic acid (3) and β-sitosterol-3-O-β-D-glucopyranoside (4)]. Their structures were elucidated on the basis of NMR spectroscopic and MS analysis, and by comparison with related published data. The crude extract, fractions and isolated compounds showed no activity against four yeast strains [Candida albicans (ATCC 9002), C. parapsilopsis (ATCC22019), C. tropicalis (ATCC750), Cryptococcus neoformans (IP95026) and one isolate of Candida guilliermondii].
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Affiliation(s)
| | - Apollinaire Tsopmo
- Food Science and Nutrition, Department of Chemistry, Carleton University, Ottawa, ON, Canada
| | - Maurice D. Awouafack
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Tchuenguem T. Roland
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Jean P. Dzoyem
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Pierre Tane
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
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Tankeo SB, Damen F, Awouafack MD, Mpetga J, Tane P, Eloff JN, Kuete V. Antibacterial activities of the methanol extracts, fractions and compounds from Fagara tessmannii. JOURNAL OF ETHNOPHARMACOLOGY 2015; 169:275-279. [PMID: 25937257 DOI: 10.1016/j.jep.2015.04.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 04/20/2015] [Accepted: 04/22/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Fagara tessmannii is a shrub of the African rainforests used to treat bacterial infections, cancers, swellings and inflammation. In the present study, the methanol extract from the leaves (FTL), bark (FTB), and roots (FTR) of this plant as well as fractions (FTR1-5) and compounds isolated from FTR namely β-sitosterol-3-O-β-d-glucopyranoside (1), nitidine chloride (2) and buesgenine (3), were tested for their antimicrobial activities against a panel of Gram-negative bacteria including multidrug resistant (MDR) phenotypes. MATERIALS AND METHODS The broth microdilution method was used to determine the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of the above samples; Column chromatography was used for the fractionation and purification of the roots extract whilst the chemical structures of compounds were determined using spectroscopic techniques. RESULTS Results of the MIC determinations indicated that the crude extracts from the roots as well as fraction FTRa4 were active on all the 26 tested bacterial strains. MIC values below 100µg/mL were obtained with roots, leaves and bark extract respectively against 30.8%, 15.4% and 11.5% tested bacteria. The lowest MIC value below of 8µg/mL was obtained with extract from the roots against Escherichia coli MC100 strain. The lowest MIC value of 4µg/mL was also obtained with compound 3 against E. coli AG102 and Klebsiella pneumoniae ATCC11296 CONCLUSIONS: The present study demonstrates that F. tessmannii is a potential source of antimicrobial drugs to fight against MDR bacteria. Benzophenanthrine alkaloids 2 and 3 are the main antibacterial consituents of the roots of the plant.
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Affiliation(s)
- Simplice B Tankeo
- Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon
| | - Francois Damen
- Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, Cameroon
| | - Maurice D Awouafack
- Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, Cameroon
| | - James Mpetga
- Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, Cameroon
| | - Pierre Tane
- Laboratory of Natural Products Chemistry, Department of Chemistry, Faculty of Science, University of Dschang, Cameroon
| | - Jacobus N Eloff
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - Victor Kuete
- Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon.
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Awouafack MD, McGaw LJ, Gottfried S, Mbouangouere R, Tane P, Spiteller M, Eloff JN. Antimicrobial activity and cytotoxicity of the ethanol extract, fractions and eight compounds isolated from Eriosema robustum (Fabaceae). BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 13:289. [PMID: 24165199 PMCID: PMC3817817 DOI: 10.1186/1472-6882-13-289] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Accepted: 10/25/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND The aim of this study was to evaluate the antimicrobial activity and the cytotoxicity of the ethanol crude extract, fractions and isolated compounds from the twigs of Eriosema robustum, a plant used for the treatment of coughs and skin diseases. METHODS Column chromatographic and spectroscopic techniques were used to isolate and identify eight compounds, robusflavones A (1) and B (2), orostachyscerebroside A (3), stigmasterol (4), 1-O-heptatriacontanoyl glycerol (5), eicosanoic acid (6), 3-O-β-D-glucopyranoside of sitosterol (7) and 6-prenylpinocembrin (8), from E. robustum. A two-fold serial microdilution method was used to determine the minimum inhibitory concentration (MIC) against fungi and bacteria, and the 3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide reduction assay was used to evaluate the cytotoxicity. RESULTS Fraction B had significant antimicrobial activity against Aspergillus fumigatus and Cryptoccocus neoformans (MIC 0.08 mg/ml), whilst the crude extract and fraction A had moderate activity against A. fumigatus and Candida albicans (MIC 0.16 mg/ml). Fraction A however had excellent activity against Staphylococcus aureus (MIC 0.02 mg/ml), Enterococcus faecalis and Escherichia coli (MIC 0.04 mg/ml). The crude extract had significant activity against S. aureus, E. faecalis and E. coli. Fraction B had good activity against E. faecalis and E. coli (MIC 0.08 mg/ml). All the isolated compounds had a relatively weak antimicrobial activity. An MIC of 65 μg/ml was obtained with robusflavones A (1) and B (2) against C. albicans and A. fumigatus, orostachyscerebroside A (3) against A. fumigatus, and robusflavone B (2) against C. neoformans. Compound 8 had the best activity against bacteria (average MIC 55 μg/ml). The 3 fractions and isolated compounds had LC50 values between 13.20 to > 100 μg/ml against Vero cells yielding selectivity indices between 0.01 and 1.58. CONCLUSION The isolated compounds generally had a much lower activity than expected based on the activity of the fractions from which they were isolated. This may be the result of synergism between different compounds in the complex extracts or fractions. The results support the traditional use of E. robustum to treat infections. The crude extract had a good activity and low preparation cost, and may be useful in topical applications to combat microbial infections.
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