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Abdelmohsen UR, Bayoumi SAL, Mohamed NM, Mostafa YA, Ngwa CJ, Pradel G, Farag SF. Naturally occurring phenylethanoids and phenylpropanoids: antimalarial potential. RSC Adv 2023; 13:26804-26811. [PMID: 37692342 PMCID: PMC10483269 DOI: 10.1039/d3ra04242a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 08/27/2023] [Indexed: 09/12/2023] Open
Abstract
Malaria as an infectious disease is one of the world's most dangerous parasitic diseases. There is an urgent need for the development of new antimalarial drugs. Natural products are a very rich source of new bioactive compounds. Our research aims to shed light on the recent studies which demonstrated the antimalarial potential of phenylpropanoids as a major natural-products class. This study involves an in silico analysis of naturally-occurring phenylpropanoids and phenylethanoids which showed 25 compounds with moderate to strong binding affinity to various amino acid residues lining the active site; P. falciparum kinase (PfPK5), P. falciparum cytochrome bc1 complex (cyt bc1), and P. falciparum lysyl-tRNA synthetase (PfKRS1); of Plasmodium falciparum parasite, a unicellular protozoan which causes the most severe and life-threatening malaria. Furthermore, the study was augmented by the assessment of antiplasmodial activity of glandularin, a naturally occurring dibenzylbutyrolactolic lignan, against chloroquine-sensitive 3D7 strain of P. falciparum using SYBR green I-based fluorescence assay, which showed high antimalarial activity with IC50 value of 11.2 μM after 24 hours of incubation. Our results highlight phenylpropanoids and glandularin in particular as a promising chemical lead for development of antimalarial drugs.
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Affiliation(s)
- Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University Minia 61519 Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University 7 Universities Zone 61111 New Minia City Egypt
| | - Soad A L Bayoumi
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University Assiut 71526 Egypt
| | - Nesma M Mohamed
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University Assiut 71526 Egypt
- Department of Pharmacognosy, Faculty of Pharmacy, Badr University in Assiut Assiut 77771 Egypt
| | - Yaser A Mostafa
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University 71526 Assiut Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Badr University in Assiut Assiut 77771 Egypt
| | - Che J Ngwa
- Division of Cellular and Applied Infection Biology, Institute of Zoology, RWTH Aachen University 52074 Aachen Germany
| | - Gabriele Pradel
- Division of Cellular and Applied Infection Biology, Institute of Zoology, RWTH Aachen University 52074 Aachen Germany
| | - Salwa F Farag
- Department of Pharmacognosy, Faculty of Pharmacy, Assiut University Assiut 71526 Egypt
- Department of Pharmacognosy, College of Pharmacy, Taif University P.O. Box 11099 Taif 21944 Saudi Arabia
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Jiatsa Mbouna CD, Tchatat Tali BM, Tsouh Fokou PV, Madiesse Kemgne EA, Keumoe R, Toghueo Kouipou RM, Yamthe Tchokouaha LR, Tchuente Tchuenmogne MA, Kenou DK, Sahal D, Boyom FF. Specific sub fractions from Terminalia mantaly (H. Perrier) extracts potently inhibit Plasmodium falciparum rings, merozoite egress and invasion. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114909. [PMID: 34902534 DOI: 10.1016/j.jep.2021.114909] [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: 08/20/2021] [Revised: 12/07/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Terminalia mantaly (H. Perrier) and Terminalia superba (Engl. & Diels) are sources of treatment for various diseases, including malaria and/or related symptoms in parts of Southwestern Cameroon. However, there is limited information on the extent of the antiplasmodial potential of their extracts. AIM OF THE STUDY The present study was designed to investigate the antiplasmodial potential of chromatographic sub fractions (SFs) from promising fractions of Terminalia mantaly (Tm) [TmsbwChl, the chloroform fraction from water extract of Tm, IC50 (μg/mL) PfINDO: 0.56, Pf3D7: 1.12; SI > 357 (HEK/PfINDO) & 178 (HEK/Pf3D7)] and Terminalia superba (Ts) [TsrmEA, the ethyl acetate fraction from methanolic extract of Ts, IC50 (μg/mL) PfINDO: 1.82, Pf3D7: 1.65; SI > 109 (HEK/PfINDO) & 121 (HEK/Pf3D7)] obtained from previous studies. The SFs were tested against Plasmodium falciparum 3D7 (Pf3D7-chloroquine sensitive) and INDO (PfINDO-chloroquine resistant) strains in culture. Also, the phytochemical profile of potent SFs was determined and finally, the inhibition of the asexual blood stages of Plasmodium falciparum by the SFs with the highest promise was assessed. MATERIAL AND METHODS Selected SFs were submitted to a second bio-guided fractionation using silica gel column chromatography. The partial phytochemical composition of potent antiplasmodial SFs was determined using gas chromatography coupled to mass spectrometry (GC-MS). The SYBR Green I-based fluorescence microtiter plate assay was used to monitor the growth of Plasmodium falciparum parasites in culture in the presence or absence of extracts. Microscopy and flow cytometry counting was used to assess the Plasmodium falciparum stage-specific inhibition and post-drug exposure growth suppression by highly potent extracts. RESULTS Twenty-one of the 39 SFs afforded from TmsbwChl showed activity (IC50: 0.29-4.74 μg/mL) against both Pf3D7 and PfINDO strains. Of note, eight SFs namely, Tm25, Tm28-30, Tm34-36 and Tm38, exerted highly potent antiplasmodial activity (IC50 < 1 μg/mL) with IC50PfINDO: 0.41-0.84 μg/mL and IC50Pf3D7: 0.29-0.68 μg/mL. They also displayed very high selectivity (50 < SIPfINDO, SIPf3D7 > 344) on the two Plasmodial strains. On the other hand, 7 SFs (SFs Ts03, Ts04, Ts06, Ts09, Ts10, Ts12 and Ts13) from TsrmEA showed promising inhibitory potential against both parasite strains (IC50: 2.01-5.14 μg/mL). Sub fraction Tm36 (IC50PfINDO: 0.41 μg/mL, SIPfINDO > 243; IC50Pf3D7: 0.29 μg/mL, SIPf3D7 > 344) showed the highest promise. The GC-MS analysis of the 8 selected SFs led to the identification of 99 phytometabolites, with D-limonene (2), benzaldehyde (12), carvone (13), caryophyllene (35), hexadecanoic acid, methyl ester (74) and 9-octadecenoic acid, methyl ester (82) being the main constituents. Sub fractions Tm28, Tm29, Tm30, Tm36 and Tm38 inhibited all the three intraerythrocytic stages of P. falciparum, with strong potency against ring stage development, merozoite egress and invasion processes. CONCLUSIONS This study has identified highly potent antiplasmodial SFs from Terminalia mantaly with significant activity on the intraerythrocytic development of Plasmodium falciparum. These SFs qualify as promising sources of novel antiplasmodial lead compounds. Further purification and characterization studies are expected to unravel molecular targets in rings and merozoites.
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Affiliation(s)
- Cedric Derick Jiatsa Mbouna
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Brice Mariscal Tchatat Tali
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Patrick Valere Tsouh Fokou
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon; Department of Biochemistry, Faculty of Sciences, University of Bamenda, PO Box 39, Bambili, Cameroon
| | - Eugenie Aimee Madiesse Kemgne
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Rodrigue Keumoe
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Rufin Marie Toghueo Kouipou
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - Lauve Rachel Yamthe Tchokouaha
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon; Institute for Medical Research and Medicinal Plants Studies (IMPM), Yaoundé, P.O. Box 6163, Yaoundé, Cameroon
| | - Marthe Aimée Tchuente Tchuenmogne
- Laboratory of Natural Products and Organic Synthesis, Department of Organic Chemistry,Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Donald Kagho Kenou
- Laboratory of Natural Products and Organic Synthesis, Department of Organic Chemistry,Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
| | - Dinkar Sahal
- Malaria Drug Discovery Laboratory, International Centre for Genetic Engineering and Biotechnology, New Delhi -110067, India.
| | - Fabrice Fekam Boyom
- Antimicrobial and Biocontrol Agents Unit, Laboratory for Phytobiochemistry and Medicinal Plants Study, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
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Chauhan M, Saxena A, Saha B. An insight in anti-malarial potential of indole scaffold: A review. Eur J Med Chem 2021; 218:113400. [PMID: 33823394 DOI: 10.1016/j.ejmech.2021.113400] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 10/21/2022]
Abstract
Malaria is a major parasitic disease in tropical and sub-tropical regions. Pertaining to the sustaining resistance in malarial parasite against the available drugs, novel treatment options are the need of the hour. In this resolve recently, focus has shifted to finding the natural alternatives that possess anti-plasmodial activity for combatting malaria. Drawing on the text written in ancient scriptures and Ayurveda, natural compounds are now being screened for their therapeutic properties. Indole is one such natural compound, present in all living organisms, it displays a range of therapeutic activities including anticancer, anti-inflammatory, antimalarial etc. In this review, we have discussed various indole scaffold as well as the semi-synthetic drugs containing indole moiety that have been synthesized for malaria treatment.
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Affiliation(s)
- Mehak Chauhan
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Anjali Saxena
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India.
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Al-Quraishy S, Abdel-Maksoud MA, Al-Shaebi EM, Dkhil MA. Botanical candidates from Saudi Arabian flora as potential therapeutics for Plasmodium infection. Saudi J Biol Sci 2021; 28:1374-1379. [PMID: 33613066 PMCID: PMC7878689 DOI: 10.1016/j.sjbs.2020.11.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 01/21/2023] Open
Abstract
Malaria is a lethal parasitic disease affecting over two hundred million people worldwide and kills almost half a million people per year. Until now, there is no curative treatment for this disease that has a substantial morbidity. The available chemotherapeutic agents are unable to completely control the infection with the continuous appearance of drug resistance. Consequently, the search for new therapeutic agents with high safety profiles and low side effects is of paramount importance. Several natural products have been investigated and proven to have antimalarial effects either in vivo or in vitro. A large number of plants have been studied globally for their antimalarial activities. However, studies that have been conducted in this field in Saudi Arabia are not enough. This article presents global and local research on the need for novel natural antimalarial agents with a particular emphasis on studies involving plants from Saudi Arabian flora.
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Affiliation(s)
- Saleh Al-Quraishy
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | | | - Esam M Al-Shaebi
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | - Mohamed A Dkhil
- Department of Zoology, College of Science, King Saud University, Saudi Arabia.,Department of Zoology and Entomology, Faculty of Science, Helwan University, Egypt
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5
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Ren W, Wu H, Tian Z, Zhang W, Dong W, Jiang H, Liu Y. Phytochemical and chemotaxonomic study on the dried rhizome of Menispermum dauricum DC. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2020.104189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Al-Harrasi A, Avula SK, Das B, Csuk R, Al-Rawahi A. Total Synthesis of Surinamensinols A and B. SYNOPEN 2020. [DOI: 10.1055/s-0040-1707325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
AbstractAn efficient total synthesis of the naturally occurring anti-inflammatory and antitumour 8-O-4′-neolignans, surinamensinols A and B, has been accomplished from commercially available allyl alcohol and (S)-ethyl lactate. The synthetic sequence involves a palladium-catalysed Suzuki–Miyaura cross-coupling reaction followed by a chiral Mitsunobu reaction as the key steps. This is the first report of the simultaneous stereoselective total synthesis of surinamensinols A and B through a single approach involving only six steps.
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Affiliation(s)
- Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa
| | | | - Biswanath Das
- Natural and Medical Sciences Research Center, University of Nizwa
| | - Rene Csuk
- Organic Chemistry, Martin-Luther-University Halle-Wittenberg
| | - Ahmed Al-Rawahi
- Natural and Medical Sciences Research Center, University of Nizwa
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do Nascimento Marinho RF, Angrisani BRP, Macedo AL, de Lima Moreira D, Ribeiro CMR, Vasconcelos TRA, Valverde AL. 1H and 13C NMR Spectral Data of Neolignans Isolated from Piper Species. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200608133542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Plants of the genus Piper (Piperaceae) have a pantropical distribution. In Brazil,
Piper species are used in traditional medicine to treat many diseases such as inflammation,
diabetes, toothache, and fever. Many reports have shown a correlation between the biological
activities of Piper species and neolignans, a secondary metabolite class obtained from
the shikimic acid biosynthetic pathway. This review aims to provide detailed information on
the structural identification of neolignans isolated from Piper species by 1H and 13C Nuclear
Magnetic Resonance (NMR) spectroscopy. These searchable data enable rapid identification
and routine analysis of neolignans from extracts of the Piper species.
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Affiliation(s)
| | - Bianca Roberta Peres Angrisani
- Department of Organic Chemistry, Graduate Program in Chemistry, Institute of Chemistry, Federal Fluminense University, Niteroi, Brazil
| | - Arthur Ladeira Macedo
- School of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Davyson de Lima Moreira
- Department of Natural Products, Institute of Pharmaceutical Technology, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Carlos Magno Rocha Ribeiro
- Department of Organic Chemistry, Graduate Program in Chemistry, Institute of Chemistry, Federal Fluminense University, Niteroi, Brazil
| | - Thatyana Rocha Alves Vasconcelos
- Department of Organic Chemistry, Graduate Program in Chemistry, Institute of Chemistry, Federal Fluminense University, Niteroi, Brazil
| | - Alessandra Leda Valverde
- Department of Organic Chemistry, Graduate Program in Chemistry, Institute of Chemistry, Federal Fluminense University, Niteroi, Brazil
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AlSheikh HMA, Sultan I, Kumar V, Rather IA, Al-Sheikh H, Tasleem Jan A, Haq QMR. Plant-Based Phytochemicals as Possible Alternative to Antibiotics in Combating Bacterial Drug Resistance. Antibiotics (Basel) 2020; 9:E480. [PMID: 32759771 PMCID: PMC7460449 DOI: 10.3390/antibiotics9080480] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/26/2020] [Accepted: 08/01/2020] [Indexed: 12/30/2022] Open
Abstract
The unprecedented use of antibiotics that led to development of resistance affect human health worldwide. Prescription of antibiotics imprudently and irrationally in different diseases progressed with the acquisition and as such development of antibiotic resistant microbes that led to the resurgence of pathogenic strains harboring enhanced armors against existing therapeutics. Compromised the treatment regime of a broad range of antibiotics, rise in resistance has threatened human health and increased the treatment cost of diseases. Diverse on metabolic, genetic and physiological fronts, rapid progression of resistant microbes and the lack of a strategic management plan have led researchers to consider plant-derived substances (PDS) as alternative or in complementing antibiotics against the diseases. Considering the quantitative characteristics of plant constituents that attribute health beneficial effects, analytical procedures for their isolation, characterization and phytochemical testing for elucidating ethnopharmacological effects has being worked out for employment in the treatment of different diseases. With an immense potential to combat bacterial infections, PDSs such as polyphenols, alkaloids and tannins, present a great potential for use, either as antimicrobials or as antibiotic resistance modifiers. The present study focuses on the mechanisms by which PDSs help overcome the surge in resistance, approaches for screening different phytochemicals, methods employed in the identification of bioactive components and their testing and strategies that could be adopted for counteracting the lethal consequences of multidrug resistance.
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Affiliation(s)
- Hana Mohammed Al AlSheikh
- Department of Prosthetic Dental Sciences, College of Dentistry, Kind Saud University, Riyadh P.O. BOX 145111, Saudi Arabia;
| | - Insha Sultan
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India;
| | - Vijay Kumar
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea;
| | - Irfan A. Rather
- Department of Biological Sciences, Faculty of Science, King Abdul Aziz University, Jeddah P.O. BOX 80200, Saudi Arabia;
| | - Hashem Al-Sheikh
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Arif Tasleem Jan
- School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri 185234, India
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Bolchi C, Bavo F, Appiani R, Roda G, Pallavicini M. 1,4-Benzodioxane, an evergreen, versatile scaffold in medicinal chemistry: A review of its recent applications in drug design. Eur J Med Chem 2020; 200:112419. [PMID: 32502862 DOI: 10.1016/j.ejmech.2020.112419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/14/2020] [Accepted: 05/02/2020] [Indexed: 12/11/2022]
Abstract
1,4-Benzodioxane has long been a versatile template widely employed to design molecules endowed with diverse bioactivities. Its use spans the last decades of medicinal chemistry until today concerning many strategies of drug discovery, not excluding the most advanced ones. Here, more than fifty benzodioxane-related lead compounds, selected from recent literature, are presented showing the different approaches with which they have been developed. Agonists and antagonists at neuronal nicotinic, α1 adrenergic and serotoninergic receptor subtypes and antitumor and antibacterial agents form the most representative classes, but a variety of other biological targets are addressed by benzodioxane-containing compounds.
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Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Rebecca Appiani
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Gabriella Roda
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università di Milano, Via Mangiagalli 25, I-20133, Milano, Italy.
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Neuhaus WC, Jemison AL, Kozlowski MC. Vanadium-Catalyzed Selective Oxidative Homocoupling of Alkenyl Phenols to Synthesize Lignan Analogs. ACS Catal 2019; 9:11067-11073. [PMID: 32104612 DOI: 10.1021/acscatal.9b02608] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The oxidative homocoupling of para-alkenyl phenols and subsequent trapping of the resulting quinone methide with a variety of oxygen and nitrogen nucleophiles was achieved. Both β-β and β-O coupling isomers can be synthesized via either C-C coupling and two nucleophilic additions of one water molecule (β-β isomer) or C-O coupling followed by one nucleophilic addition of a water molecule (β-O isomer), respectively. Selectivity between these outcomes was achieved by leveraging understanding of the mechanism. Specifically, a qualitative predictive model for the selectivity of the coupling was formulated based on catalyst electronics, solvent polarity, and concentration.
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Affiliation(s)
- William C. Neuhaus
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Adriana L. Jemison
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Marisa C. Kozlowski
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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11
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Abstract
The paper is a compilation of the studies reported in the literature concerning non-nitrogenous natural constituents that have shown antiplasmodial activity and aims to provide a basis for further in vivo studies as well as for clinical trials to develop new antimalarial agents. Due to the increasingly unsatisfactory outcomes for N-heterocyclic drugs, coupled with the rising incidence of the deadly falciparum malaria, the advent of non-nitrogenous lead compounds is timely, signaling a new era of antimalarial chemotherapy. Currently a few non-nitrogenous molecules are used in therapy, but many promising molecules of plant origin are under study, such as peroxide sesquiterpenes, quinoid triterpenes, quassinoids, gallic acid derivatives, lignans, flavonoids and biflavonoids, xanthones, naphthoquinones and phenylanthraquinones. Many of these constituents are isolated from plants used traditionally to treat malaria and fever. Ethnopharmacology can still be considered as a rich source of lead molecules.
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Affiliation(s)
- Anna Rita Bilia
- Department of Pharmaceutical Sciences, University of Florence, via Ugo Schiff, 6, Sesto Fiorentino-50019-Florence, Italy
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12
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Ren X, She X, Peng K, Su Y, Xie X, Pan X. First Enantioselective Synthesis of Rhaphidecursinol A. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823403103174119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The enantioselective synthesis of Rhaphidecursinol A was reported for the first time and the absolute configuration of Rhaphidecursinol A was confirmed.
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Affiliation(s)
- Xinfeng Ren
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xuegong She
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Kun Peng
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ying Su
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xingang Xie
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xinfu Pan
- Department of Chemistry, National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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Heravi MM, Ghalavand N, Ghanbarian M, Mohammadkhani L. Applications of Mitsunobu Reaction in total synthesis of natural products. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4464] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Majid M. Heravi
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Nastaran Ghalavand
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Manizheh Ghanbarian
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
| | - Leyla Mohammadkhani
- Department of Chemistry; Alzahra University; Vanak, P.O. Box 1993893973 Tehran Iran
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Pan WH, Xu XY, Shi N, Tsang SW, Zhang HJ. Antimalarial Activity of Plant Metabolites. Int J Mol Sci 2018; 19:ijms19051382. [PMID: 29734792 PMCID: PMC5983777 DOI: 10.3390/ijms19051382] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 04/30/2018] [Accepted: 05/02/2018] [Indexed: 12/21/2022] Open
Abstract
Malaria, as a major global health problem, continues to affect a large number of people each year, especially those in developing countries. Effective drug discovery is still one of the main efforts to control malaria. As natural products are still considered as a key source for discovery and development of therapeutic agents, we have evaluated more than 2000 plant extracts against Plasmodium falciparum. As a result, we discovered dozens of plant leads that displayed antimalarial activity. Our phytochemical study of some of these plant extracts led to the identification of several potent antimalarial compounds. The prior comprehensive review article entitled “Antimalarial activity of plant metabolites” by Schwikkard and Van Heerden (2002) reported structures of plant-derived compounds with antiplasmodial activity and covered literature up to the year 2000. As a continuation of this effort, the present review covers the antimalarial compounds isolated from plants, including marine plants, reported in the literature from 2001 to the end of 2017. During the span of the last 17 years, 175 antiplasmodial compounds were discovered from plants. These active compounds are organized in our review article according to their plant families. In addition, we also include ethnobotanical information of the antimalarial plants discussed.
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Affiliation(s)
- Wen-Hui Pan
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong SAR, China.
| | - Xin-Ya Xu
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong SAR, China.
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou 510070, China.
| | - Ni Shi
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong SAR, China.
| | - Siu Wai Tsang
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong SAR, China.
| | - Hong-Jie Zhang
- School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Kowloon, Hong Kong SAR, China.
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15
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Wangchuk P. Therapeutic Applications of Natural Products in Herbal Medicines, Biodiscovery Programs, and Biomedicine. ACTA ACUST UNITED AC 2018. [DOI: 10.1080/22311866.2018.1426495] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Phurpa Wangchuk
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns Campus, QLD 4878, Australia
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16
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Sun Z, Fridrich B, de Santi A, Elangovan S, Barta K. Bright Side of Lignin Depolymerization: Toward New Platform Chemicals. Chem Rev 2018; 118:614-678. [PMID: 29337543 PMCID: PMC5785760 DOI: 10.1021/acs.chemrev.7b00588] [Citation(s) in RCA: 725] [Impact Index Per Article: 120.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Indexed: 11/28/2022]
Abstract
Lignin, a major component of lignocellulose, is the largest source of aromatic building blocks on the planet and harbors great potential to serve as starting material for the production of biobased products. Despite the initial challenges associated with the robust and irregular structure of lignin, the valorization of this intriguing aromatic biopolymer has come a long way: recently, many creative strategies emerged that deliver defined products via catalytic or biocatalytic depolymerization in good yields. The purpose of this review is to provide insight into these novel approaches and the potential application of such emerging new structures for the synthesis of biobased polymers or pharmacologically active molecules. Existing strategies for functionalization or defunctionalization of lignin-based compounds are also summarized. Following the whole value chain from raw lignocellulose through depolymerization to application whenever possible, specific lignin-based compounds emerge that could be in the future considered as potential lignin-derived platform chemicals.
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Affiliation(s)
- Zhuohua Sun
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Bálint Fridrich
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Alessandra de Santi
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Saravanakumar Elangovan
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Katalin Barta
- Stratingh
Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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17
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Yamansarov EY, Kazakov DV, Medvedeva NI, Khusnutdinova EF, Kazakova OB, Legostaeva YV, Ishmuratov GY, Huong LM, Ha TTH, Huong DT, Suponitsky KY. Synthesis and antimalarial activity of 3'-trifluoromethylated 1,2,4-trioxolanes and 1,2,4,5-tetraoxane based on deoxycholic acid. Steroids 2018; 129:17-23. [PMID: 29180289 DOI: 10.1016/j.steroids.2017.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/09/2017] [Accepted: 11/15/2017] [Indexed: 10/18/2022]
Abstract
A series of new steroidal peroxides - 3'-trifluoromethylated 1,2,4-trioxolanes and 1,2,4,5-tetraoxanes based on deoxycholic acid were prepared via the reactions of the Griesbaum coozonolysis and peroxycondensation, respectively. 1,2,4-Trioxolanes were synthesized by the interaction of methyl O-methyl-3-oximino-12α-acetoxy-deoxycholate with CF3C(O)CH3 or CF3C(O)Ph and O3 as the mixtures of four possible stereoisomers at ratios of 1:2:2:1 and in yields of 50% and 38%, respectively. The major diastereomer of methyl 12α-acetoxy-5β-cholan-24-oate-3-spiro-5'-(3'-methyl-3'-trifluoromethyl-1',2',4'-trioxolane) was isolated via crystallization of a mixture of stereoisomers from hexane and its (3S,3'R)-configuration was determined using X-ray crystallographic analysis. Peroxycondensation of methyl 3-bishydroperoxy-12α-acetoxy-deoxycholate with CF3C(O)CH3 or acetone led to 1,2,4,5-tetraoxanes in yields of 44% and 37%, respectively. Antimalarial activity of these new steroidal peroxides was evaluated in vitro against the chloroquine-sensitive (CQS) T96 and chloroquine-resistant (CQR) K1 strains of Plasmodium falciparum. Deoxycholic acid 3'-trifluoromethylated 1,2,4,5-tetraoxane demonstrated a good IC50 value against CQR-strain (IC50 (K1) = 7.6 nM) of P. falciparum. Tetraoxane with the acetone subunit demonstrated the best results among all tested peroxides with an IC50 value of 3 nM against the CQ-resistant K1 strain. In general, 1,2,4-trioxolanes of deoxycholic acid are less active than 1,2,4,5-tetraoxanes.
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Affiliation(s)
- Emil Yu Yamansarov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Dmitri V Kazakov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation; Noncommercial Partnership "Center for Diagnostic of Nanostructures and Nanomaterials", 4 ul. Kosygina, 119991 Moscow, Russian Federation
| | - Natal'ya I Medvedeva
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Elmira F Khusnutdinova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation.
| | - Yuliya V Legostaeva
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Gumer Yu Ishmuratov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Le Mai Huong
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Tran Thi Hong Ha
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Do Thi Huong
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Kyrill Yu Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation
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18
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Pereira GAN, Souza GC, Santos LS, Barata LES, Meneses CCF, Krettli AU, Daniel-Ribeiro CT, Alves CN. Synthesis, antimalarial activity in vitro, and docking studies of novel neolignan derivatives. Chem Biol Drug Des 2017; 90:464-472. [PMID: 28245094 DOI: 10.1111/cbdd.12968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 02/15/2017] [Accepted: 02/19/2017] [Indexed: 11/30/2022]
Abstract
The absence of effective vaccines against malaria and the difficulties associated with controlling mosquito vectors have left chemotherapy as the primary control measure against malaria. However, the emergence and spread of parasite resistance to conventional antimalarial drugs result in a worrisome scenario making the search for new drugs a priority. In the present study, the activities of nine neolignan derivatives were evaluated as follows: (i) against blood forms of chloroquine-resistant Plasmodium falciparum (clone W2), using the tritiated hypoxanthine incorporation and anti-HRPII assays; (ii) for cytotoxic activity against cultured human hepatoma cells (HepG2); and (iii) for intermolecular interaction with the P. falciparum cysteine protease of falcipain-2 (F2) by molecular docking. The neolignan derivatives 9 and 10 showed activity against the blood form of the chloroquine-resistant P. falciparum clone W2 and were not cytotoxic against cultured human hepatoma cells. A molecular docking study of these two neolignans with FP2 revealed several intermolecular interactions that should guide the design of future analogs.
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Affiliation(s)
- Glaécia A N Pereira
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, PA, Brazil.,Laboratório de Pesquisa em Malária, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Gisele C Souza
- Laboratório de Síntese Orgânica, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, PA, Brazil
| | - Lourivaldo S Santos
- Laboratório de Síntese Orgânica, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, PA, Brazil
| | - Lauro E S Barata
- Laboratório de Síntese Orgânica, Instituto de Química, UNICAMP, Campinas, SP, Brazil
| | - Carla C F Meneses
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, PA, Brazil
| | - Antoniana U Krettli
- Laboratório de Malária, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| | | | - Cláudio Nahum Alves
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, PA, Brazil
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19
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Cortez AP, Menezes EGP, Benfica PL, Santos APD, Cleres LM, Ribeiro HDO, Lima EM, Kato MJ, Valadares MC. Grandisin induces apoptosis in leukemic K562 cells. BRAZ J PHARM SCI 2017. [DOI: 10.1590/s2175-97902017000115210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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20
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Ramos CS, Linnert HV, de Moraes MM, do Amaral JH, Yamaguchi LF, Kato MJ. Configuration and stability of naturally occurring all-cis-tetrahydrofuran lignans from Piper solmsianum. RSC Adv 2017. [DOI: 10.1039/c7ra09262h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
First occurrence of all-cishexamethoxy-tetrahydrofuran lignans1aand1b, which are 6.5 kcal mol−1less stable than the all-transisomer grandisin (2a).
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Affiliation(s)
- Clécio S. Ramos
- Department of Chemistry
- Rural Federal University of Pernambuco
- 52.171-030 Recife
- Brazil
| | | | | | - João H. do Amaral
- Institute of Chemistry
- University of São Paulo
- 05508-000 São Paulo
- Brazil
| | | | - Massuo J. Kato
- Institute of Chemistry
- University of São Paulo
- 05508-000 São Paulo
- Brazil
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21
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Zhang HJ, Li WF, Fong HHS, Soejarto DD. Discovery of Bioactive Compounds by the UIC-ICBG Drug Discovery Program in the 18 Years Since 1998. Molecules 2016; 21:E1448. [PMID: 27809237 PMCID: PMC6273581 DOI: 10.3390/molecules21111448] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 10/24/2016] [Accepted: 10/25/2016] [Indexed: 12/03/2022] Open
Abstract
The International Cooperative Biodiversity Groups (ICBG) Program based at the University of Illinois at Chicago (UIC) is a program aimed to address the interdependent issues of inventory and conservation of biodiversity, drug discovery and sustained economic growth in both developing and developed countries. It is an interdisciplinary program involving the extensive synergies and collaborative efforts of botanists, chemists and biologists in the countries of Vietnam, Laos and the USA. The UIC-ICBG drug discovery efforts over the past 18 years have resulted in the collection of a cumulative total of more than 5500 plant samples (representing more than 2000 species), that were evaluated for their potential biological effects against cancer, HIV, bird flu, tuberculosis and malaria. The bioassay-guided fractionation and separation of the bioactive plant leads resulted in the isolation of approximately 300 compounds of varying degrees of structural complexity and/or biological activity. The present paper summarizes the significant drug discovery achievements made by the UIC-ICBG team of multidisciplinary collaborators in the project over the period of 1998-2012 and the projects carried on in the subsequent years by involving the researchers in Hong Kong.
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Affiliation(s)
- Hong-Jie Zhang
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China.
| | - Wan-Fei Li
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China.
| | - Harry H S Fong
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
| | - Djaja Doel Soejarto
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Chicago, IL 60612, USA.
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22
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de Castro Oliveira LG, Brito LM, de Moraes Alves MM, Amorim LV, Sobrinho-Júnior EPC, de Carvalho CES, da Franca Rodrigues KA, Arcanjo DDR, das Graças Lopes Citó AM, de Amorim Carvalho FA. In VitroEffects of the Neolignan 2,3-Dihydrobenzofuran AgainstLeishmania Amazonensis. Basic Clin Pharmacol Toxicol 2016; 120:52-58. [DOI: 10.1111/bcpt.12639] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 07/05/2016] [Indexed: 11/29/2022]
Affiliation(s)
| | - Lucas Moreira Brito
- Medicinal Plants Research Center; Federal University of Piauí; Teresina PI Brazil
| | | | | | | | | | | | - Daniel Dias Rufino Arcanjo
- Medicinal Plants Research Center; Federal University of Piauí; Teresina PI Brazil
- Department of Biophysics and Physiology; Federal University of Piauí; Teresina PI Brazil
| | | | - Fernando Aécio de Amorim Carvalho
- Medicinal Plants Research Center; Federal University of Piauí; Teresina PI Brazil
- Department of Biochemistry and Pharmacology; Federal University of Piauí; Teresina PI Brazil
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23
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Yang Y, Qin Y, Meng Y, Xia C, Gao X, Hu Q. 8-O-4′-Neolignans from the Stem Bark of Illicium difengpi and their ANTI-HIV-1 Activities. Chem Nat Compd 2016. [DOI: 10.1007/s10600-016-1543-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Atanasov AG, Waltenberger B, Pferschy-Wenzig EM, Linder T, Wawrosch C, Uhrin P, Temml V, Wang L, Schwaiger S, Heiss EH, Rollinger JM, Schuster D, Breuss JM, Bochkov V, Mihovilovic MD, Kopp B, Bauer R, Dirsch VM, Stuppner H. Discovery and resupply of pharmacologically active plant-derived natural products: A review. Biotechnol Adv 2015; 33:1582-1614. [PMID: 26281720 PMCID: PMC4748402 DOI: 10.1016/j.biotechadv.2015.08.001] [Citation(s) in RCA: 1292] [Impact Index Per Article: 143.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 07/16/2015] [Accepted: 08/07/2015] [Indexed: 01/01/2023]
Abstract
Medicinal plants have historically proven their value as a source of molecules with therapeutic potential, and nowadays still represent an important pool for the identification of novel drug leads. In the past decades, pharmaceutical industry focused mainly on libraries of synthetic compounds as drug discovery source. They are comparably easy to produce and resupply, and demonstrate good compatibility with established high throughput screening (HTS) platforms. However, at the same time there has been a declining trend in the number of new drugs reaching the market, raising renewed scientific interest in drug discovery from natural sources, despite of its known challenges. In this survey, a brief outline of historical development is provided together with a comprehensive overview of used approaches and recent developments relevant to plant-derived natural product drug discovery. Associated challenges and major strengths of natural product-based drug discovery are critically discussed. A snapshot of the advanced plant-derived natural products that are currently in actively recruiting clinical trials is also presented. Importantly, the transition of a natural compound from a "screening hit" through a "drug lead" to a "marketed drug" is associated with increasingly challenging demands for compound amount, which often cannot be met by re-isolation from the respective plant sources. In this regard, existing alternatives for resupply are also discussed, including different biotechnology approaches and total organic synthesis. While the intrinsic complexity of natural product-based drug discovery necessitates highly integrated interdisciplinary approaches, the reviewed scientific developments, recent technological advances, and research trends clearly indicate that natural products will be among the most important sources of new drugs also in the future.
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Affiliation(s)
- Atanas G. Atanasov
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Birgit Waltenberger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Eva-Maria Pferschy-Wenzig
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/I, 8010 Graz, Austria
| | - Thomas Linder
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-OC, 1060 Vienna, Austria
| | - Christoph Wawrosch
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Pavel Uhrin
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Veronika Temml
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Limei Wang
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Stefan Schwaiger
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Elke H. Heiss
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Judith M. Rollinger
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Johannes M. Breuss
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Valery Bochkov
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Humboldtstrasse 46/III, 8010 Graz, Austria
| | - Marko D. Mihovilovic
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-OC, 1060 Vienna, Austria
| | - Brigitte Kopp
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Rudolf Bauer
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/I, 8010 Graz, Austria
| | - Verena M. Dirsch
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
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25
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Lalwani KG, Sudalai A. First Enantioselective Synthesis of Surinamensinol B and a Non-Natural Polysphorin Analogue by a Two-Stereocentered Hydrolytic Kinetic Resolution. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Bathini T, Rawat VS, Bojja S. In situ protection and deprotection of amines for iron catalyzed oxidative amidation of aldehydes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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27
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Hassam M, Taher A, Arnott GE, Green IR, van Otterlo WAL. Isomerization of Allylbenzenes. Chem Rev 2015; 115:5462-569. [DOI: 10.1021/acs.chemrev.5b00052] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohammad Hassam
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Abu Taher
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Gareth E. Arnott
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Ivan R. Green
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Willem A. L. van Otterlo
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
- School
of Chemistry, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa
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28
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Chang CW, Chang HS, Cheng MJ, Peng CF, Chen IS. Identification of Five New Minor Constituents from the Whole Plant ofAmischotolype hispida. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201400179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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In Vitro and In Vivo Antimalarial Activity of Ficus thonningii Blume (Moraceae) and Lophira alata Banks (Ochnaceae), Identified from the Ethnomedicine of the Nigerian Middle Belt. J Parasitol Res 2014; 2014:972853. [PMID: 24955248 PMCID: PMC4052051 DOI: 10.1155/2014/972853] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 04/30/2014] [Indexed: 11/25/2022] Open
Abstract
Drug resistance in Plasmodium falciparum requires that new drugs must be developed. Plants are a potential source for drug discovery and development. Two plants that used to treat febrile illnesses in Nigeria were tested for in vitro and in vivo antimalarial activity and cytotoxicity in cancer cell lines. Methanol, hexane, and ethyl acetate leaf extracts of Ficus thonningii and Lophira alata were active in in vitro assays against P. falciparum NF54 (sensitive) and K1 (multiresistant) strains. Hexane extracts of F. thonningii and L. alata were the most effective extracts in in vitro assays with IC50 of 2.7 ± 1.6 μg/mL and 2.5 ± 0.3 μg/mL for NF54 and 10.4 ± 1.6 μg/mL and 2.5 ± 2.1 μg/mL for K1 strain. All extracts were nontoxic in cytotoxicity assays against KB human cell line with IC50 of over 20 μg/mL, demonstrating selectivity against P. falciparum. In vivo analysis shows that hexane extracts of both plants reduced parasitaemia. At the maximum dose tested, L. alata had a 74.4% reduction of parasitaemia while F. thonningii had a reduction of 84.5%, both extracts prolonged animal survival in mice infected with P. berghei NK65 when compared with vehicle treated controls. The antiplasmodial activity observed justifies the use of both plants in treating febrile conditions.
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30
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Neolignan Licarin A presents effect against Leishmania (Leishmania) major associated with immunomodulation in vitro. Exp Parasitol 2013; 135:307-13. [DOI: 10.1016/j.exppara.2013.07.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 07/08/2013] [Accepted: 07/11/2013] [Indexed: 11/17/2022]
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31
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Ren X, She X, Peng K, Su Y, Xie X, Pan X, Zhang H. First Enantioselective Synthesis of the Neolignans Rhaphidecursinol A and Virolongin B. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200400144] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Rye CE, Barker D. Asymmetric synthesis and anti-protozoal activity of the 8,4'-oxyneolignans virolin, surinamensin and analogues. Eur J Med Chem 2012; 60:240-8. [PMID: 23313632 DOI: 10.1016/j.ejmech.2012.12.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 12/05/2012] [Accepted: 12/10/2012] [Indexed: 11/18/2022]
Abstract
The asymmetric synthesis of 8,4'-oxyneolignans (-)-virolin, (-)-surinamensin and a number of analogues has been achieved. A divergent synthesis was used, with all compounds being elaborated from a single chiral aldehyde derived from ethyl lactate. In the 15 compounds that were tested, the level of substitution on the A-ring was found to directly influence the activity against Leishmania donovani whilst the activity against Plasmodium falciparum was influenced by numerous substitution and stereochemical factors.
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Affiliation(s)
- Claire E Rye
- School of Chemical Sciences, University of Auckland, 23 Symonds St, Auckland, New Zealand
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33
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Ding J, Qi R, Zhou H, Jiao B, Xia Y. Synthesis of (1R,2S)-2-(4′-Allyl-2′,6′-Dimethoxyphenoxyl)-1-(4″-Hydroxy-3″, 5″-Dimethoxyphenyl)Propan-1-ol. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x13149759277234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The asymmetric synthesis of the natural neolignan (1R,2S)-2-(4′-allyl-2′,6′-dimethoxyphenoxyl)-1-(4″-hydroxy-3″,5″-dimethoxyphenyl)propan-1-ol based on an asymmetric dihydroxylation as a key reaction using AD-mix-β to preparing the chiral threo-(1R,2R)-glycerol. The reaction, threo-alcohols were inverted by an SN2 reaction into erythro-(1R,2S)-isomers.
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Affiliation(s)
- Junwei Ding
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Rongwei Qi
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Haitang Zhou
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Bin Jiao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yamu Xia
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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Pereira AC, Magalhães LG, Gonçalves UO, Luz PP, Moraes ACG, Rodrigues V, da Matta Guedes PM, da Silva Filho AA, Cunha WR, Bastos JK, Nanayakkara NPD, e Silva MLA. Schistosomicidal and trypanocidal structure-activity relationships for (±)-licarin A and its (-)- and (+)-enantiomers. PHYTOCHEMISTRY 2011; 72:1424-1430. [PMID: 21570099 DOI: 10.1016/j.phytochem.2011.04.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 04/08/2011] [Accepted: 04/13/2011] [Indexed: 05/30/2023]
Abstract
(±)-Licarin A (1) was obtained by oxidative coupling, and its enantiomers, (-)-licarin A (2) and (+)-licarin A (3), were resolved by chiral HPLC. Schistosomicidal and trypanocidal activities of these compounds were evaluated in vitro against Schistosoma mansoni adult worms and trypomastigote forms of Trypanosoma cruzi. The racemic mixture (1) displayed significant schistosomicidal activity with an LC₅₀ value of 53.57 μM and moderate trypanocidal activity with an IC₅₀ value of 127.17 μM. On the other hand, the (-)-enantiomer (2), displaying a LC₅₀ value of 91.71 μM, was more active against S. mansoni than the (+)-enantiomer (3), which did not show activity. For the trypanocidal assay, enantiomer 2 showed more significant activity (IC₅₀ of 23.46 μM) than enantiomer 3, which showed an IC₅₀ value of 87.73 μM. Therefore, these results suggest that (±)-licarin A (1) and (-)-licarin A (2) are promising compounds that could be used for the development of schistosomicidal and trypanocidal agents.
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Affiliation(s)
- A C Pereira
- Grupo de Pesquisas em Produtos Naturais, Núcleo de Ciências Exatas e Tecnológicas, Universidade de Franca, Avenida Dr. Armando Salles de Oliveira 2001, 14404-600 Franca, SP, Brazil
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Analysis of additivity and synergism in the anti-plasmodial effect of purified compounds from plant extracts. Malar J 2011; 10 Suppl 1:S5. [PMID: 21411016 PMCID: PMC3059463 DOI: 10.1186/1475-2875-10-s1-s5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the search for antimalarials from ethnobotanical origin, plant extracts are chemically fractionated and biological tests guide the isolation of pure active compounds. To establish the responsibility of isolated active compound(s) to the whole antiplasmodial activity of a crude extract, the literature in this field was scanned and results were analysed quantitatively to find the contribution of the pure compound to the activity of the whole extract. It was found that, generally, the activity of isolated molecules could not account on their own for the activity of the crude extract. It is suggested that future research should take into account the “drugs beside the drug”, looking for those products (otherwise discarded along the fractionation process) able to boost the activity of isolated active compounds.
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36
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Kumar Das S, Kumar Das S, Panda G. Formal Total Synthesis of (-)-Raphidecursinol B. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Xia Y, Chang L, Ding Y, Jiao B. Asymmetric synthesis of erythro-8-O-4’-neolignan Machilin C. MENDELEEV COMMUNICATIONS 2010. [DOI: 10.1016/j.mencom.2010.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Costantin MB, Ferreira MJP, Rodrigues GV, Emerenciano VP. Computer-aided Structure Elucidation of Neolignans. Nat Prod Commun 2010. [DOI: 10.1177/1934578x1000500516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This paper describes a new module of the expert system SISTEMAT used for the prediction of the skeletons of neolignans by 13C NMR, 1H NMR and botanical data obtained from the literature. SISTEMAT is composed of MACRONO, SISCONST, C13MACH, H1MACH and SISOCBOT programs, each analyzing data of the neolignan in question to predict the carbon skeleton of the compound. From these results, the global probability is computed and the most probable skeleton predicted. SISTEMAT predicted the skeletons of 75% of the 20 neolignans tested, in a rapid and simple procedure demonstrating its advantage for the structural elucidation of new compounds.
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Affiliation(s)
- Mara B. Costantin
- Instituto de Química, Universidade de São Paulo, Caixa Postal 26077, 05513-970, São Paulo, SP, Brazil
| | - Marcelo J. P. Ferreira
- Instituto de Química, Universidade de São Paulo, Caixa Postal 26077, 05513-970, São Paulo, SP, Brazil
- Centro de Ciências e Humanidades, Universidade Presbiteriana Mackenzie, 01302-907, SäTo Paulo, SP, Brazil
| | - Gilberto V. Rodrigues
- Departamento de Química, ICEx, Universidade Federal de Minas Gerais, 30161-000, Belo Horizonte, MG, Brazil
| | - Vicente P. Emerenciano
- Instituto de Química, Universidade de São Paulo, Caixa Postal 26077, 05513-970, São Paulo, SP, Brazil
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Yuan HJ, Cheng YY, Qian S, Xiao X, Wu Y. A new shortcut synthesis route for (±)raphidecursinol. CHINESE CHEM LETT 2010. [DOI: 10.1016/j.cclet.2009.10.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Valadares MC, De Carvalho ICT, Junior LDO, De Sousa Vieira M, Benfica PL, De Carvalho FS, Andrade LVS, Lima EM, Kato MJ. Cytotoxicity and antiangiogenic activity of grandisin. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.61.12.0017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Objectives
The antitumoural properties of grandisin, a tetrahydrofuran neolignan from Piper solmsianum, were investigated by in-vitro and in-vivo assays using the Ehrlich ascites tumoural (EAT) model.
Methods
Viability of the tumour cells was evaluated by Trypan blue exclusion and MTT methods, after incubation with grandisin (0.017-2.3 μM). The effects of grandisin on the activity of caspase-3, −6, −8, and −9 were also investigated using colorimetric protease kits. In-vivo studies were performed in EAT-bearing mice treated intraperitoneally with 2.5, 5 or 10 mg/kg grandisin for 10 days.
Key findings
Grandisin inhibited the growth of EAT cells, by both methods, with IC50 values less than 0.25 μM. The results showed that the activity of all the caspases studied increased in grandisin-treated cells, when compared with control, non-treated cells. Administering grandisin to EAT-bearing mice increased survival of the animals, in a dose-dependent manner. Simultaneously, we detected a 66.35% reduction of intraperitoneal tumour cell burden in the animals treated with 10 mg/kg grandisin. Additionally, in these animals, the marked increase of vascular endothelial growth factor (VEGF) levels, induced by EAT development, was decreased with treatment with grandisin, resulting in a reduction of 32.1% of VEGF levels in the peritoneal washing supernatant, when compared with the control.
Conclusions
The results demonstrated that grandisin induced in-vitro cytotoxicity and antiangiogenic effects in mice while it acted against tumour evolution, prolonging host survival.
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Affiliation(s)
- Marize C Valadares
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | | | - Luiz de Oliveira Junior
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Marcelo De Sousa Vieira
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Polyana Lopes Benfica
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Flávio Silva De Carvalho
- Laboratório de Farmacologia e Toxicologia Celular, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | | | - Eliana Martins Lima
- Laboratório de Tecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, Go, Brazil
| | - Massuo Jorge Kato
- Laboratório de Química de Produtos Naturais, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brazil
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41
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Cabral MMO, Barbosa-Filho JM, Maia GLA, Chaves MCO, Braga MV, De Souza W, Soares ROA. Neolignans from plants in northeastern Brazil (Lauraceae) with activity against Trypanosoma cruzi. Exp Parasitol 2009; 124:319-24. [PMID: 19944690 DOI: 10.1016/j.exppara.2009.11.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 10/20/2009] [Accepted: 11/17/2009] [Indexed: 11/19/2022]
Abstract
Trypanosoma cruzi is the ethiological agent for Chagas disease in Latin America. This study aimed to test the trypanocidal effect of licarin A and burchellin isolated from plants in northeastern Brazil. These neolignans were tested on T. cruzi and on peritoneal macrophages, to evaluate drug toxicity. Epimastigote growth was inhibited in 45% with licarin A and 20% with burchellin with an IC(50)/96 h of 462.7 microM and 756 microM, respectively. Epimastigotes treated with licarin A presented swollen mitochondria and disorganized mitochondrial cristae, kDNA and Golgi complex. When treated with burchellin, they presented enormous autophagosomes and chromatin disorganization. Licarin A and burchellin were able to induce trypomastigote death with IC(50)/24 h of 960 microM and 520 microM, respectively. Although licarin A presented an IC(50) for trypomastigotes higher than for epimastigotes, both substances acted as therapeutic trypanocidal agents, because they were able to kill parasites without affecting macrophages. Due to our results, burchellin and licarin A need to be further analysed to observe if they may be used as alternative blood additive prophylaxis against Chagas disease, since it has been established that blood transfusion is an important mechanism in the transmission process.
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Affiliation(s)
- M M O Cabral
- Laboratório de Diptera, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil, 4365, 21045-900 Rio de Janeiro, RJ, Brazil.
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42
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Ma CY, Musoke S, Tan G, Sydara K, Bouamanivong S, Southavong B, Soejarto D, Fong H, Zhang HJ. Study of Antimalarial Activity of Chemical Constituents fromDiospyros quaesita. Chem Biodivers 2008; 5:2442-8. [DOI: 10.1002/cbdv.200890209] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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da Silva Filho AA, Costa ES, Cunha WR, Silva MLAE, Nanayakkara NPD, Bastos JK. In vitroantileishmanial and antimalarial activities of tetrahydrofuran lignans isolated fromNectandra megapotamica(Lauraceae). Phytother Res 2008; 22:1307-10. [DOI: 10.1002/ptr.2486] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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da Silva R, Saraiva J, de Albuquerque S, Curti C, Donate PM, Bianco TNC, Bastos JK, Silva MLA. Trypanocidal structure-activity relationship for cis- and trans-methylpluviatolide. PHYTOCHEMISTRY 2008; 69:1890-1894. [PMID: 18479721 DOI: 10.1016/j.phytochem.2008.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2007] [Revised: 02/08/2008] [Accepted: 04/02/2008] [Indexed: 05/26/2023]
Abstract
The trypanocidal activity of racemic mixtures of cis- and trans-methylpluviatolides was evaluated in vitro against trypomastigote forms of two strains of Trypanosoma cruzi, and in the enzymatic assay of T. cruzi gGAPDH. The cytotoxicity of the compounds was assessed by the MTT method using LLC-MK2 cells. The effect of the compounds on peroxide and NO production were also investigated. The mixture of the trans stereoisomers displayed trypanocidal activity (IC50 approximately 89.3 microM). Therefore, it was separated by chiral HPLC, furnishing the (+) and (-)-enantiomers. Only the (-)-enantiomer was active against the parasite (IC50 approximately 18.7 microM). Despite being inactive, the (+)-enantiomer acted as an antagonistic competitor. Trans-methylpluviatolide displayed low toxicity for LLC-MK2 cells, with an IC50 of 6.53 mM. Furthermore, methylpluviatolide neither inhibited gGAPDH activity nor hindered peroxide and NO production at the evaluated concentrations.
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Affiliation(s)
- R da Silva
- Núcleo de Ciências Exatas e Tecnológicas, Universidade de Franca, Avenida Dr. Armando Salles de Oliveira, 2001, 14404-600 Franca, SP, Brazil
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45
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Yeap SK, Alitheen NB, Ali AM, Omar AR, Raha AR, Suraini AA, Muhajir AH. Effect of Rhaphidophora korthalsii methanol extract on human peripheral blood mononuclear cell (PBMC) proliferation and cytolytic activity toward HepG2. JOURNAL OF ETHNOPHARMACOLOGY 2007; 114:406-11. [PMID: 17884317 DOI: 10.1016/j.jep.2007.08.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Revised: 08/10/2007] [Accepted: 08/14/2007] [Indexed: 05/17/2023]
Abstract
The study of bioactivity of natural product is one of the major researches for drug discovery. The aim of this finding was to study the proliferation effect of Rhaphidophora korthalsii methanol extract on human PBMC and subsequently the cytotoxic effect of activated PBMC toward HepG2 human hepatocellular carcinoma. In this present study, MTT assay, cell cycle study and Annexin 5 binding assay were used to study the immunomodulatory and cytotoxic effects. In vitro cytotoxic screening of Rhaphidophora korthalsii methanol extract showed that the extract was non-toxic against hepatocellular carcinoma (HepG2). In contrast, the extract was able to stimulate the proliferation of human PBMC at 48 h and 72 h in MTT assay and cell cycle progress study. The application of immunomodulator in tumor research was studied by using MTT microcytotoxicity assay and flow cytometric Annexin V. Results indicated that pre-treated PBMC with Rhaphidophora korthalsii methanol extract induced the highest cytotoxicity (44.87+/-6.06% for MTT microcytotoxicity assay and 51.51+/-3.85% for Annexin V) toward HepG2. This finding demonstrates that Rhaphidophora korthalsii methanol extract are potent to stimulate the cytotoxic effect of immune cells toward HepG2.
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Affiliation(s)
- S K Yeap
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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46
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He ZD, Ma CY, Zhang HJ, Tan GT, Tamez P, Sydara K, Bouamanivong S, Southavong B, Soejarto DD, Pezzuto JM, Fong HHS. Antimalarial constituents from Nauclea orientalis (L.) L. Chem Biodivers 2007; 2:1378-86. [PMID: 17191939 DOI: 10.1002/cbdv.200590110] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bioassay-guided fractionation of the antimalarial-active CHCl3 extract of the dried stem of Nauclea orientalis (L.) L. (Rubiaceae) has resulted in the isolation of two novel tetrahydro-beta-carboline monoterpene alkaloid glucosides, naucleaorine (= (16alpha,17beta)-3,14:15,20-tetradehydro-16-ethenyl-17-(beta-D-glucopyranosyloxy)-19alpha-methoxyoxayohimban-21-one; 1) and epimethoxynaucleaorine (2), as well as the known compounds, strictosidine lactam (= (15beta,16alpha,17beta)-19,20-didehydro-16-ethenyl-17-(beta-D-glucopyranosyloxy)oxayohimban-21-one; 3), 3,4,5-trimethoxyphenol (4), 3alpha-hydroxyurs-12-en-28-oic acid methyl ester (5), 3alpha,23-dihydroxyurs-12-en-28-oic acid (6), 3alpha,19alpha,23-trihydroxyurs-12-en-28-oic acid methyl ester (7), and oleanolic acid (8). Compounds 1, 2, 6, and 8 showed moderate in vitro activities against Plasmodium falciparum. Their structures and configurations were elucidated by spectroscopic methods including 1D- and 2D-NMR analyses.
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Affiliation(s)
- Zhen-Dan He
- Program for Collaborative Research in Pharmaceutical Sciences, M/C 781, Department of Medicinal Chemistry & Pharmacognosy, College of Pharmacy, the University of Illinois at Chicago, 833 S. Wood Street, Chicago, Illinois 60612, USA
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47
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Cabral MMO, Mendonça PM, Gomes CMS, Barbosa Filho JM, Queiroz MMC, Mello RP. Biological activity of neolignans on the post-embryonic development of Chrysomya megacephala. Fitoterapia 2007; 78:20-4. [PMID: 17067762 DOI: 10.1016/j.fitote.2006.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2005] [Accepted: 09/07/2006] [Indexed: 11/18/2022]
Abstract
Phytochemicals endowed with hormonal, antihormonal, or toxic activity are potential agents for insect control. The effect of some neolignans on one of the most prevalent flies in urban areas, which constitutes a menace to public health, was investigated.
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Affiliation(s)
- M M O Cabral
- Laboratório de Diptera, Departamento de Entomologia/IOC, Fundação Oswaldo Cruz, FIOCRUZ, Av. Brasil, 4365, 21045-900, Rio de Janeiro, RJ, Brazil.
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48
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Liu H, Jensen KG, Tran LM, Chen M, Zhai L, Olsen CE, Søhoel H, Denmeade SR, Isaacs JT, Christensen SB. Cytotoxic phenylpropanoids and an additional thapsigargin analogue isolated from Thapsia garganica. PHYTOCHEMISTRY 2006; 67:2651-8. [PMID: 17098264 DOI: 10.1016/j.phytochem.2006.10.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Revised: 10/03/2006] [Accepted: 10/04/2006] [Indexed: 05/12/2023]
Abstract
Four phenylpropanoids and a thapsigargin analogue have been isolated from the fruits of Thapsia garganica. A spectroscopic method for elucidating the relative stereochemistry at the two pairs of stereogenic centers in the phenylpropanoids has been developed. The phenylpropanoids were found to be potent cytotoxins.
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Affiliation(s)
- Huizhen Liu
- Department of Medicinal Chemistry, The Danish University of Pharmaceutical Sciences, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
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49
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He ZD, Ma CY, Tan GT, Sydara K, Tamez P, Southavong B, Bouamanivong S, Soejarto DD, Pezzuto JM, Fong HHS, Zhang HJ. Rourinoside and rouremin, antimalarial constituents from Rourea minor. PHYTOCHEMISTRY 2006; 67:1378-84. [PMID: 16762381 DOI: 10.1016/j.phytochem.2006.04.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2005] [Revised: 03/07/2006] [Accepted: 04/07/2006] [Indexed: 05/10/2023]
Abstract
Bioassay-directed fractionation of the antimalarial active CHCl(3) extract of the dried stems of Rourea minor (Gaertn.) Aubl. (Connaraceae) liana led to isolation of two glycosides, rourinoside (1) and rouremin (2), as well as five known compounds, 1-(26-hydroxyhexacosanoyl)-glycerol (3), 1-O-beta-D-glucopyranosyl-(2S,3R,4E-8Z)-2-N-(2'-hydroxypalmitoyl)-octadecasphinga-4,8-dienine, 9S,12S,13S-trihydroxy-10E-octadecenoic acid, dihydrovomifoliol-9-beta-D-glucopyranoside, and beta-sitosterol glucoside. Compounds 1-3 showed weak in vitro activities against Plasmodium falciparum. Their structures and stereochemistry were elucidated by spectroscopic methods and selected enzyme hydrolysis.
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Affiliation(s)
- Zhen-Dan He
- Program for Collaborative Research in the Pharmaceutical Sciences, M/C 781, Department of Medical Chemistry and Pharmacognosy, College of Pharmacy, The University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL 60612, USA
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50
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Soejarto DD, Fong HHS, Tan GT, Zhang HJ, Ma CY, Franzblau SG, Gyllenhaal C, Riley MC, Kadushin MR, Pezzuto JM, Xuan LT, Hiep NT, Hung NV, Vu BM, Loc PK, Dac LX, Binh LT, Chien NQ, Hai NV, Bich TQ, Cuong NM, Southavong B, Sydara K, Bouamanivong S, Ly HM, Thuy TV, Rose WC, Dietzman GR. Ethnobotany/ethnopharmacology and mass bioprospecting: issues on intellectual property and benefit-sharing. JOURNAL OF ETHNOPHARMACOLOGY 2005; 100:15-22. [PMID: 15993554 DOI: 10.1016/j.jep.2005.05.031] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/23/2005] [Indexed: 05/03/2023]
Abstract
Ethnobotany/ethnopharmacology has contributed to the discovery of many important plant-derived drugs. Field explorations to seek and document indigenous/traditional medical knowledge (IMK/TMK), and/or the biodiversity with which the IMK/TMK is attached, and its conversion into a commercialized product is known as bioprospecting or biodiversity prospecting. When performed in a large-scale operation, the effort is referred to as mass bioprospecting. Experiences from the mass bioprospecting efforts undertaken by the United States National Cancer Institute, the National Cooperative Drug Discovery Groups (NCDDG) and the International Cooperative Biodiversity Groups (ICBG) programs demonstrate that mass bioprospecting is a complex process, involving expertise from diverse areas of human endeavors, but central to it is the Memorandum of Agreement (MOA) that recognizes issues on genetic access, prior informed consent, intellectual property and the sharing of benefits that may arise as a result of the effort. Future mass bioprospecting endeavors must take heed of the lessons learned from past and present experiences in the planning for a successful mass bioprospecting venture.
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Affiliation(s)
- D D Soejarto
- PCRPS, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL 60612, USA.
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