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Feineis D, Bringmann G. Structural variety and pharmacological potential of naphthylisoquinoline alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2024; 91:1-410. [PMID: 38811064 DOI: 10.1016/bs.alkal.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Naphthylisoquinoline alkaloids are a fascinating class of natural biaryl compounds. They show characteristic mono- and dimeric scaffolds, with chiral axes and stereogenic centers. Since the appearance of the last comprehensive overview on these secondary plant metabolites in this series in 1995, the number of discovered representatives has tremendously increased to more than 280 examples known today. Many novel-type compounds have meanwhile been discovered, among them naphthylisoquinoline-related follow-up products like e.g., the first seco-type (i.e., ring-opened) and ring-contracted analogues. As highlighted in this review, the knowledge on the broad structural chemodiversity of naphthylisoquinoline alkaloids has been decisively driven forward by extensive phytochemical studies on the metabolite pattern of Ancistrocladus abbreviatus from Coastal West Africa, which is a particularly "creative" plant. These investigations furnished a considerable number of more than 80-mostly new-natural products from this single species, with promising antiplasmodial activities and with pronounced cytotoxic effects against human leukemia, pancreatic, cervical, and breast cancer cells. Another unique feature of naphthylisoquinoline alkaloids is their unprecedented biosynthetic origin from polyketidic precursors and not, as usual for isoquinoline alkaloids, from aromatic amino acids-a striking example of biosynthetic convergence in nature. Furthermore, remarkable botanical results are presented on the natural producers of naphthylisoquinoline alkaloids, the paleotropical Dioncophyllaceae and Ancistrocladaceae lianas, including first investigations on the chemoecological role of these plant metabolites and their storage and accumulation in particular plant organs.
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Affiliation(s)
- Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Würzburg, Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Würzburg, Germany.
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Nguyen TNN, Vo TN, Nguyen KPP, Nguyen TH, Nguyen TAT. A new cucurbitane - type triterpenoid from the bark of Elaeocarpus hygrophilus Kurz. Nat Prod Res 2024:1-7. [PMID: 38520262 DOI: 10.1080/14786419.2024.2330539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 02/29/2024] [Indexed: 03/25/2024]
Abstract
A new cucurbitacin, 3β-(β-D-glucopyranosyloxy)-5β,6β:16α,23α-diepoxycucurbit-24-en-11-one or hygrocucurbin A (1), along with two known compounds, including 3β-(β-D-glucopyranosyloxy)-16α,23α-epoxycucurbita-5,24-dien-11-one (2) and (+)-lyoniresinol (3), were isolated from the bark of Elaeocarpus hygrophilus. Their chemical structures were elucidated by spectroscopic NMR, HR-IDA- TOF-MS analysis, and by comparison with the spectral data of corresponding compounds in the literature. Two cucurbitacins (1) and (2) were evaluated for their α-glucosidase inhibitory activity and cytotoxic against KB, MCF-7, Hep G2, and A549 cancer cell lines. For the α-glucosidase inhibitory activity, compound 1 showed an equivalent effect (IC50 197.4 ± 4.1 µM) compared to the acarbose, a positive control (IC50 208.5 ± 4.7 µM). And for the cytotoxicity, 2 was inactive while 1 was slightly sensitive against KB cells (IC50 233.3 ± 2.5 µM).
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Affiliation(s)
- Thi-Ngoc-Nuong Nguyen
- Department of Organic Chemistry, University of Science, Vietnam National University-Ho Chi Minh City, Ho Chi Minh City, Vietnam
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
| | - Thi-Nga Vo
- Department of Chemical Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam
| | - Kim-Phi-Phung Nguyen
- Department of Organic Chemistry, University of Science, Vietnam National University-Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Tri-Hieu Nguyen
- Department of Organic Chemistry, University of Science, Vietnam National University-Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thi-Anh-Tuyet Nguyen
- Department of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam
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Mohie El-Dien RT, Maher SA, Abdelmohsen UR, AboulMagd AM, Fouad MA, Kamel MS. Antiulcer secondary metabolites from Elaeocarpus grandis, family Elaeocarpaceae, supported by in silico studies. RSC Adv 2020; 10:34788-34799. [PMID: 35514372 PMCID: PMC9056857 DOI: 10.1039/d0ra06104b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/03/2020] [Indexed: 11/23/2022] Open
Abstract
Elaeocarpus grandis has a very potent analgesic effect, especially to a δ-opioid receptor, but its antiulcer activity has not yet been validated. Therefore, the present study was carried out to evaluate the antiulcer potential of the total methanolic extract and its derived fractions of the aerial parts of the plant using an indomethacin-induced gastric ulcer method. One new compound, grandisine H (1), and five known compounds, P-methoxy benzaldehyde, methyl gallate, kaempferol, quercetin and heterophyllin A (2–6), were isolated from the ethyl acetate fraction, which was the most potent one with an ulcer index value of 5 ± 1.95 (mm) ** (*P < 0.05, **P < 0.01) and a preventive index of 92.9%, following a bioassay-guided fractionation. The isolated compounds were subjected to a molecular docking study in an attempt to explain their significant antiulcer potential, and the results revealed that kaempferol and quercetin bind to the active site of the M3 receptor with a strong binding affinity via strong hydrogen bonds of −6.081 kcal mol−1 and −6.013 kcal mol−1, respectively. Also, quercetin and heterophyllin A showed a binding affinity with the gastric proton pump receptor and a strong hydrogen bond interaction with the amino acid active sites in the case of an H2-modeled receptor. These results clarify the effectiveness and importance of the ethyl acetate fraction as a natural anti-ulcer remedy. Elaeocarpus grandis has a very potent analgesic effect, especially to a δ-opioid receptor, but its antiulcer activity has not yet been validated.![]()
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Affiliation(s)
- Radwa Taher Mohie El-Dien
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt
| | - Sherif A Maher
- Department of Biochemistry, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt.,Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
| | - Asmaa M AboulMagd
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Nahda University 62513 Beni Suef Egypt
| | - Mostafa Ahmed Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
| | - Mohamed Salah Kamel
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University University Zone 61111 New Minia City Egypt.,Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt
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Bringmann G, Fayez S, Shamburger W, Feineis D, Winiarczyk S, Janecki R, Adaszek Ł. Naphthylisoquinoline alkaloids and their synthetic analogs as potent novel inhibitors against Babesia canis in vitro. Vet Parasitol 2020; 283:109177. [PMID: 32629205 DOI: 10.1016/j.vetpar.2020.109177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 06/22/2020] [Accepted: 06/25/2020] [Indexed: 10/24/2022]
Abstract
Babesia canis is the predominant and clinically relevant canine Babesia species in Europe. Transmitted by vector ticks, the parasite enters red blood cells and induces a severe, potentially fatal hemolytic anemia. Here, we report on the antibabesial activities of three extracts of the West African tropical plant species Triphyophyllum peltatum (Dioncophyllaceae) and Ancistrocladus abbreviatus (Ancistrocladaceae) and of 13 genuine naphthylisoquinoline alkaloids isolated thereof. Two of the extracts and eight of the alkaloids were found to display strong activities against Babesia canis in vitro. Among the most potent compounds were the C,C-coupled dioncophyllines A (1a) and C (2) and the N,C-linked alkaloids ancistrocladium A (3) and B (4), with half-maximum inhibition concentration (IC50) values of 0.48 μM for 1a, 0.85 μM for 2, 1.90 μM for 3, and 1.23 μM for 4. Structure-activity relationship (SAR) studies on a small library of related genuine analogs and non-natural synthetic derivatives of 1a and 2 revealed the likewise naturally occurring alkaloid N-methyl-7-epi-dioncophylline A (6b) to be the most potent (IC50, 0.14 μM) among the investigated compounds. Although none of the tested naphthylisoquinolines showed 100 % inhibition of parasite infection - as displayed by imidocarb dipropionate (IC50, 0.07 μM), which was used as a positive control - the antibabesial potential of the dioncophyllines A (1a) and C (2) and related compounds such as 6b, its atropo-diastereomer 6a (IC50, 1.45 μM), and 8-O-(p-nitrobenzyl)dioncophylline A (14) (IC50, 0.82 μM) is to be considered as high. The SAR results showed that N-methylation and axial chirality exert a strong impact on the antibabasial activities of the naphthylisoquinolines presented here, whereas dimerization, as in jozimine A2 (5) (IC50, 140 μM), leads to a significant decrease of activity against B. canis. Alkaloids displaying good to high activities against B. canis like the dioncophyllines 1a, 2, 6a, and 6b were found to cause only a small degree of hemolysis (< 0.7 %), whereas compounds with moderate to weak antibabesial activities such as 6-O-methyl-4'-O-demethylancistrocladine (15a) (IC50, 14.0 μM) and its atropo-diastereomer 6-O-methyl-4'-O-demethylhamatine (15b) (IC50, 830 μM) caused a high degree of hemolysis (7.3 % for 15a and 11.2 % for 15b). In this respect, the most effective anti-Babesia naphthylisoquinolines are also the safest ones.
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Affiliation(s)
- Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany.
| | - Shaimaa Fayez
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany; Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street 1, 11566, Cairo, Egypt
| | - William Shamburger
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany
| | - Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany
| | - Stanislaw Winiarczyk
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, ul. Głęboka 30, 20-612, Lublin, Poland
| | - Radoslaw Janecki
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, ul. Głęboka 30, 20-612, Lublin, Poland
| | - Łukasz Adaszek
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, ul. Głęboka 30, 20-612, Lublin, Poland.
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Wu L, Wu J, Chen SP, Li ZJ, Zhang J, Yuan E, Ma GQ, Jin L, Hu JW. Chemical Constituents of the Twigs of Elaeocarpus sylvestris. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02679-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Neves NDA, Stringheta PC, Gómez-Alonso S, Hermosín-Gutiérrez I. Flavonols and ellagic acid derivatives in peels of different species of jabuticaba (Plinia spp.) identified by HPLC-DAD-ESI/MSn. Food Chem 2018; 252:61-71. [DOI: 10.1016/j.foodchem.2018.01.078] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/05/2017] [Accepted: 01/10/2018] [Indexed: 12/20/2022]
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Omar MA, Salama A, Elsify A, Rizk MA, Al-Aboody MS, AbouLaila M, El-Sayed SAES, Igarashi I. Evaluation of in vitro inhibitory effect of enoxacin on Babesia and Theileria parasites. Exp Parasitol 2015; 161:62-7. [PMID: 26724376 DOI: 10.1016/j.exppara.2015.12.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 12/02/2015] [Accepted: 12/22/2015] [Indexed: 10/22/2022]
Abstract
Enoxacin is a broad-spectrum 6-fluoronaphthyridinone antibacterial agent (fluoroquinolones) structurally related to nalidixic acid used mainly in the treatment of urinary tract infections and gonorrhea. Also it has been shown recently that it may have cancer inhibiting effect. The primary antibabesial effect of Enoxacin is due to inhibition of DNA gyrase subunit A, and DNA topoisomerase. In the present study, enoxacin was tested as a potent inhibitor against the in vitro growth of bovine and equine Piroplasms. The in vitro growth of five Babesia species that were tested was significantly inhibited (P < 0.05) by micro molar concentrations of enoxacin (IC50 values = 33.5, 15.2, 7.5 and 23.2 μM for Babesia bovis, Babesia bigemina, Babesia caballi, and Theileria equi, respectively). Enoxacin IC50 values for Babesia and Theileria parasites were satisfactory as the drug is potent antibacterial drug with minimum side effects. Therefore, enoxacin might be used for treatment of Babesiosis and Theileriosis especially in case of mixed infections with bacterial diseases or incase of animal sensitivity against diminazin toxicity.
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Affiliation(s)
- Mosaab A Omar
- Department of Parasitology, Faculty of Veterinary Medicine, SouthValley University, Qena 83523, Egypt; Department of Medical Laboratories, College of Science Al-Zulfi, AlMajmaah University, Alzulfi 11932, Riyadh, Saudi Arabia.
| | - Akram Salama
- Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Minoufiya, Egypt
| | - Ahmed Elsify
- Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, University of Sadat City, Sadat City 32897, Minoufiya, Egypt
| | - Mohamed Abdo Rizk
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido, Japan; Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Mohammad Saleh Al-Aboody
- Department of Medical Laboratories, College of Science Al-Zulfi, AlMajmaah University, Alzulfi 11932, Riyadh, Saudi Arabia
| | - Mahmoud AbouLaila
- Department of Parasitology, Faculty of Veterinary Medicine, Sadat City University, Sadat City 32897, Minoufiya, Egypt
| | - Shimaa Abd El-Salam El-Sayed
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido, Japan; Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Ikuo Igarashi
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido, Japan
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HPLC with quadrupole TOF-MS and chemometrics analysis for the characterization of Folium Turpiniae from different regions. J Sep Sci 2013; 36:2552-61. [DOI: 10.1002/jssc.201300360] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/15/2013] [Accepted: 05/20/2013] [Indexed: 11/07/2022]
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Evaluation of in vitro and in vivo inhibitory effects of fusidic acid on Babesia and Theileria parasites. Vet Parasitol 2012; 191:1-10. [PMID: 22985928 DOI: 10.1016/j.vetpar.2012.08.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 08/20/2012] [Accepted: 08/27/2012] [Indexed: 11/20/2022]
Abstract
Fusidic acid known to has antibacterial, antifungal, and antimalarial activities. Fusidic acid blocks translation elongation factor G gene in Plasmodium falciparum. In the present study, the inhibitory effects of fusidic acid on the in vitro growth of bovine and equine Babesia parasites were evaluated. The inhibitory effect of fusidic acid on the in vivo growth of Babesia microti was also assessed. The in vitro growth of four Babesia species that were tested was significantly inhibited (P<0.05) by micromolar concentrations of fusidic acid (IC(50) values=144.8, 17.3, 33.3, and 56.25 μM for Babesia bovis, Babesia bigemina, Babesia caballi, and Theileria equi, respectively). Combinations of fusidic acid with diminazene aceturate synergistically potentiated its inhibitory effects in vitro on B. bovis and B. caballi. In B. microti-infected mice, fusidic acid caused significant (P<0.05) inhibition of the growth of B. microti at the dose of 500 mg/kg BW relative to control group. These results indicate that fusidic acid might be incorporated in treatment of babesiosis.
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Quave CL, Estévez-Carmona M, Compadre CM, Hobby G, Hendrickson H, Beenken KE, Smeltzer MS. Ellagic acid derivatives from Rubus ulmifolius inhibit Staphylococcus aureus biofilm formation and improve response to antibiotics. PLoS One 2012; 7:e28737. [PMID: 22242149 PMCID: PMC3252291 DOI: 10.1371/journal.pone.0028737] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 11/14/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Biofilms contribute to the pathogenesis of many forms of Staphylococcus aureus infection. Treatment of these infections is complicated by intrinsic resistance to conventional antibiotics, thus creating an urgent need for strategies that can be used for the prevention and treatment of biofilm-associated infections. METHODOLOGY/PRINCIPAL FINDINGS This study demonstrates that a botanical natural product composition (220D-F2) rich in ellagic acid and its derivatives can limit S. aureus biofilm formation to a degree that can be correlated with increased antibiotic susceptibility. The source of this composition is Rubus ulmifolius Schott. (Rosaceae), a plant used in complementary and alternative medicine in southern Italy for the treatment of skin and soft tissue infections. All S. aureus clonal lineages tested exhibited a reduced capacity to form a biofilm at 220D-F2 concentrations ranging from 50-200 µg/mL, which were well below the concentrations required to limit bacterial growth (530-1040 µg/mL). This limitation was therapeutically relevant in that inclusion of 220D-F2 resulted in enhanced susceptibility to the functionally-distinct antibiotics daptomycin, clindamycin and oxacillin. Testing with kidney and liver cell lines also demonstrated a lack of host cell cytotoxicity at concentrations of 220D-F2 required to achieve these effects. CONCLUSIONS/SIGNIFICANCE These results demonstrate that extract 220D-F2 from the root of Rubus ulmifolius can be used to inhibit S. aureus biofilm formation to a degree that can be correlated with increased antibiotic susceptibility without toxic effects on normal mammalian cells. Hence, 220D-F2 is a strong candidate for development as a botanical drug for use in the prevention and treatment of S. aureus biofilm-associated infections.
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Affiliation(s)
- Cassandra L. Quave
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Miriam Estévez-Carmona
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Pharmacy Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico
| | - Cesar M. Compadre
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Gerren Hobby
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Howard Hendrickson
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Karen E. Beenken
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
| | - Mark S. Smeltzer
- Department of Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
- Department of Orthopaedic Surgery and Center for Orthopaedic Research, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America
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Simões-Pires CA, Vargas S, Marston A, Ioset JR, Paulo MQ, Matheeussen A, Maes L. Ellagic Acid Derivatives from Syzygium cumini Stem Bark: Investigation of their Antiplasmodial Activity. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900401012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Bioguided fractionation of Syzygium cumini (Myrtaceae) bark decoction for antiplasmodial activity was performed, leading to the isolation of three known ellagic acid derivatives (ellagic acid, ellagic acid 4-O-α-L-2″-acetylrhamnopyranoside, 3-O-methylellagic acid 3′-O-α-L-rhamnopyranoside), as well as the new derivative 3-O-methylellagic acid 3′-O-β-D-glucopyranoside. Activity investigation was based on the reduction of P. falciparum (PfK1) parasitaemia in vitro and the inhibition of β-hematin formation, a known mechanism of action of some antimalarial drugs. Among the investigated ellagic acid derivatives, only ellagic acid was able to reduce P. falciparum parasitaemia in vitro and inhibit β-hematin formation, suggesting that free hydroxyl groups are necessary for activity within this class of compounds.
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Affiliation(s)
- Claudia A. Simões-Pires
- Laboratory of Pharmacognosy and Phytochemistry, Έcole de Pharmacie Genève-Lausanne, University of Geneva, University of Lausanne, CH-1211 Genève 4, Switzerland
| | - Sandra Vargas
- Laboratory of Pharmacognosy and Phytochemistry, Έcole de Pharmacie Genève-Lausanne, University of Geneva, University of Lausanne, CH-1211 Genève 4, Switzerland
| | - Andrew Marston
- Laboratory of Pharmacognosy and Phytochemistry, Έcole de Pharmacie Genève-Lausanne, University of Geneva, University of Lausanne, CH-1211 Genève 4, Switzerland
| | - Jean-Robert Ioset
- Laboratory of Pharmacognosy and Phytochemistry, Έcole de Pharmacie Genève-Lausanne, University of Geneva, University of Lausanne, CH-1211 Genève 4, Switzerland
- Drugs for Neglected Diseases initiative (DNDi), 15 Chemin Louis Dunant, 1202 Geneva, Switzerland
| | - Marçal Q. Paulo
- Laboratory of Natural Product Chemistry, Department of Chemistry, Federal University of Paraíba, 58059-900 João Pessoa, Brazil
| | - An Matheeussen
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), University of Antwerp, B-2020 Wilrijk, Antwerp
| | - Louis Maes
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH), University of Antwerp, B-2020 Wilrijk, Antwerp
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Magid AA, Voutquenne-Nazabadioko L, Harakat D, Moretti C, Lavaud C. Phenolic glycosides from the stem bark of Caryocar villosum and C. glabrum. JOURNAL OF NATURAL PRODUCTS 2008; 71:914-917. [PMID: 18412393 DOI: 10.1021/np800015p] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Mushroom tyrosinase inhibitory activity of methanol extracts and polar fractions of the stem bark of Caryocar villosum and C. glabrum has been assessed. Seven new phenolic glycosides (1-7) were isolated from the most active fractions, along with 15 known compounds (8-22). The structures of these compounds were established on the basis of spectroscopic methods including 1D and 2D NMR analysis, HRESIMS, and comparison with literature experimental data for known compounds.
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Affiliation(s)
- Abdulmagid Alabdul Magid
- Laboratoire de Pharmacognosie, Institut de Chimie Moléculaire de Reims, CNRS UMR 6229, IFR 53 Biomolécules, Reims Cedex 2, France.
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