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Shahriar A, Lokesh S, Timilsina A, Numan T, Schramm T, Stincone P, Nyarko L, Dewey C, Petras D, Boiteau R, Yang Y. High-Resolution Tandem Mass Spectrometry-Based Analysis of Model Lignin-Iron Complexes: Novel Pipeline and Complex Structures. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 39116213 DOI: 10.1021/acs.est.4c03608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Understanding the chemical nature of soil organic carbon (SOC) with great potential to bind iron (Fe) minerals is critical for predicting the stability of SOC. Organic ligands of Fe are among the top candidates for SOCs able to strongly sorb on Fe minerals, but most of them are still molecularly uncharacterized. To shed insights into the chemical nature of organic ligands in soil and their fate, this study developed a protocol for identifying organic ligands using ultrahigh-performance liquid chromatography-high-resolution tandem mass spectrometry (UHPLC-HRMS/MS) and metabolomic tools. The protocol was used for investigating the Fe complexes formed by model compounds of lignin-derived organic ligands, namely, caffeic acid (CA), p-coumaric acid (CMA), vanillin (VNL), and cinnamic acid (CNA). Isotopologue analysis of 54/56Fe was used to screen out the potential UHPLC-HRMS (m/z) features for complexes formed between organic ligands and Fe, with multiple features captured for CA, CMA, VNL, and CNA when 35/37Cl isotopologue analysis was used as supplementary evidence for the complexes with Cl. MS/MS spectra, fragment analysis, and structure prediction with SIRIUS were used to annotate the structures of mono/bidentate mono/biligand complexes. The analysis determined the structures of monodentate and bidentate complexes of FeLxCly (L: organic ligand, x = 1-4, y = 0-3) formed by model compounds. The protocol developed in this study can be used to identify unknown organic ligands occurring in complex environmental samples and shed light on the molecular-level processes governing the stability of the SOC.
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Affiliation(s)
- Abrar Shahriar
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N Virginia St, Reno, Nevada 89557, United States
- Nuclear and Chemical Sciences Division, Physical and Life Sciences, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Srinidhi Lokesh
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N Virginia St, Reno, Nevada 89557, United States
| | - Anil Timilsina
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N Virginia St, Reno, Nevada 89557, United States
| | - Travis Numan
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N Virginia St, Reno, Nevada 89557, United States
| | - Tilman Schramm
- CMFI Cluster of Excellence, University of Tuebingen, Auf der Morgenstelle 24, 72076 Tuebingen, Germany
- Department of Biochemistry, University of California Riverside, Riverside, California 92521, United States
| | - Paolo Stincone
- CMFI Cluster of Excellence, University of Tuebingen, Auf der Morgenstelle 24, 72076 Tuebingen, Germany
| | - Laurinda Nyarko
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, United States
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Christian Dewey
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, United States
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Daniel Petras
- CMFI Cluster of Excellence, University of Tuebingen, Auf der Morgenstelle 24, 72076 Tuebingen, Germany
- Department of Biochemistry, University of California Riverside, Riverside, California 92521, United States
| | - Rene Boiteau
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, United States
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Yu Yang
- Department of Civil and Environmental Engineering, University of Nevada, Reno, 1664 N Virginia St, Reno, Nevada 89557, United States
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Paes LT, D'Almeida CTDS, do Carmo MAV, da Silva Cruz L, Bubula de Souza A, Viana LM, Gonçalves Maltarollo V, Martino HSD, Domingues de Almeida Lima G, Larraz Ferreira MS, Azevedo L, Barros FARD. Phenolic-rich extracts from toasted white and tannin sorghum flours have distinct profiles influencing their antioxidant, antiproliferative, anti-adhesive, anti-invasive, and antimalarial activities. Food Res Int 2024; 176:113739. [PMID: 38163694 DOI: 10.1016/j.foodres.2023.113739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/03/2023] [Accepted: 11/22/2023] [Indexed: 01/03/2024]
Abstract
Sorghum is a gluten-free cereal commonly used in foods, and its consumption has been associated with the prevention of human chronic conditions such as obesity and cancer, due to the presence of dietary fiber and phenolic compounds. This study aimed to evaluate, for the first time, the antiproliferative, antioxidant, anti-adhesion, anti-invasion, and antimalarial activities of phenolic extracts from toasted white and tannin sorghum flours to understand how different phenolic profiles contribute to sorghum biological activities. Water and 70 % ethanol/water (v/v), eco-friendly solvents, were used to obtain the phenolic extracts of toasted sorghum flours, and their phenolic profile was analyzed by UPLC-MSE. One hundred forty-five (145) phenolic compounds were identified, with 23 compounds common to all extracts. The solvent type affected the phenolic composition, with aqueous extract of both white sorghum (WSA) and tannin sorghum (TSA) containing mainly phenolic acids. White sorghum (WSE) and tannin sorghum (TSE) ethanolic extracts exhibited a higher abundance of flavonoids. WSE demonstrated the lowest IC50 on EA.hy926 (IC50 = 46.6 µg/mL) and A549 cancer cells (IC50 = 33.1 µg/mL), while TSE showed the lowest IC50 (IC50 = 70.8 µg/mL) on HCT-8 cells (human colon carcinoma). Aqueous extracts also demonstrated interesting results, similar to TSE, showing selectivity for cancer cells at higher IC50 concentrations. All sorghum extracts also reduced the adhesion and invasion of HCT-8 cells, suggesting antimetastatic potential. WSE, rich in phenolic acids and flavonoids, exhibited greater toxicity to both the W2 (chloroquine-resistant) and 3D7 (chloroquine-sensitive) strains of Plasmodium falciparum (IC50 = 8 µg GAE/mL and 22.9 µg GAE/mL, respectively). These findings underscore the potential health benefits of toasted sorghum flours, suggesting diverse applications in the food industry as a functional ingredient or even as an antioxidant supplement. Moreover, it is suggested that, besides the phenolic concentration, the phenolic profile is important to understand the health benefits of sorghum flours.
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Affiliation(s)
- Laise Trindade Paes
- Department of Food Technology, Federal University of Vicosa, Vicosa, MG, Brazil
| | | | | | | | | | | | - Vinicius Gonçalves Maltarollo
- Pharmaceutical Products Department, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | | | - Mariana Simões Larraz Ferreira
- Laboratory of Bioactives, Food and Nutrition Graduate Program, Federal University of State of Rio de Janeiro, UNIRIO, Brazil
| | - Luciana Azevedo
- Faculty of Nutrition, Federal University of Alfenas, Alfenas, MG, Brazil
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Sidoryk K, Parapini S, Basilico N, Zaremba-Czogalla M, Kubiszewski M, Cybulski M, Gubernator J, Zagórska A, Jaromin A. Efficient One-Pot Synthesis of Novel Caffeic Acid Derivatives as Potential Antimalarials. J Parasitol Res 2023; 2023:6675081. [PMID: 38046256 PMCID: PMC10691883 DOI: 10.1155/2023/6675081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/26/2023] [Accepted: 11/07/2023] [Indexed: 12/05/2023] Open
Abstract
New protocol for the preparation of the novel caffeic acid derivatives using the Wittig reaction has been applied to follow the principles of green chemistry. The compounds have been evaluated against chloroquine-sensitive and chloroquine-resistant P. falciparum strains. Their cytotoxicity to normal human dermal fibroblasts and their propensity to induce hemolysis have been also determined. Ethyl (2E)-3-(2,3,4-trihydroxyphenyl)-2-methylpropenoate has exhibited the highest antiplasmodial activity against P. falciparum strains without the cytotoxic and hemolytic effects. This derivative is significantly more potent than caffeic acid parent structure. The application of our one-step procedure has been shown to be rapid and efficient. It allows for an easy increase of input data to refine the structure-activity relationship model of caffeates as the antimalarials. The one-step approach meets the conditions of "atom economy" and eliminates hazardous materials. Water has been used as the effective medium for the Wittig reaction to avoid toxic organic solvents.
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Affiliation(s)
- Katarzyna Sidoryk
- Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute, Warsaw, Poland
| | - Silvia Parapini
- Dipartimento di Scienze Biomediche per la Salute, Università di Milano, Milan, Italy
| | - Nicoletta Basilico
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università di Milano, Milan, Italy
| | | | - Marek Kubiszewski
- Pharmaceutical Analysis Laboratory, Łukasiewicz Research Network-Industrial Chemistry Institute, Warsaw, Poland
| | - Marcin Cybulski
- Pharmacy, Cosmetic Chemistry and Biotechnology Research Group, Łukasiewicz Research Network-Industrial Chemistry Institute, Warsaw, Poland
| | - Jerzy Gubernator
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
| | - Agnieszka Zagórska
- Department of Medicinal Chemistry, Jagiellonian University Medical College, Cracow, Poland
| | - Anna Jaromin
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wroclaw, Wroclaw, Poland
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Istyastono EP, Yuniarti N, Prasasty VD, Mungkasi S, Waskitha SSW, Yanuar MRS, Riswanto FDO. Caffeic Acid in Spent Coffee Grounds as a Dual Inhibitor for MMP-9 and DPP-4 Enzymes. Molecules 2023; 28:7182. [PMID: 37894660 PMCID: PMC10609219 DOI: 10.3390/molecules28207182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/05/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Type 2 diabetes mellitus and diabetic foot ulcers remain serious worldwide health problems. Caffeic acid is one of the natural products that has been experimentally proven to have diverse pharmacological properties. This study aimed to assess the inhibitory activity of caffeic acid and ethanolic extract of spent coffee grounds targeting DPP-4 and MMP-9 enzymes and evaluate the molecular interactions through 50-ns molecular dynamics simulations. This study also introduced our new version of PyPLIF HIPPOS, PyPLIF HIPPOS 0.2.0, which allowed us to identify protein-ligand interaction fingerprints and interaction hotspots resulting from molecular dynamics simulations. Our findings revealed that caffeic acid inhibited the DPP-4 and MMP-9 activity with an IC50 of 158.19 ± 11.30 µM and 88.99 ± 3.35 µM while ethanolic extract of spent coffee grounds exhibited an IC50 of 227.87 ± 23.80 µg/100 µL and 81.24 ± 6.46 µg/100 µL, respectively. Molecular dynamics simulations showed that caffeic acid interacted in the plausible allosteric sites of DPP-4 and in the active site of MMP-9. PyPLIF HIPPOS 0.2.0 identified amino acid residues interacting more than 10% throughout the simulation, which were Lys463 and Trp62 in the plausible allosteric site of DPP-4 and His226 in the active site of MMP-9.
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Affiliation(s)
- Enade P. Istyastono
- Research Group of Computer-Aided Drug Design and Discovery of Bioactive Natural Products, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta 55282, Indonesia; (S.S.W.W.); (M.R.S.Y.); (F.D.O.R.)
| | - Nunung Yuniarti
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia;
| | - Vivitri D. Prasasty
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - Sudi Mungkasi
- Department of Mathematics, Faculty of Science and Technology, Sanata Dharma University, Yogyakarta 55282, Indonesia;
| | - Stephanus S. W. Waskitha
- Research Group of Computer-Aided Drug Design and Discovery of Bioactive Natural Products, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta 55282, Indonesia; (S.S.W.W.); (M.R.S.Y.); (F.D.O.R.)
| | - Michael R. S. Yanuar
- Research Group of Computer-Aided Drug Design and Discovery of Bioactive Natural Products, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta 55282, Indonesia; (S.S.W.W.); (M.R.S.Y.); (F.D.O.R.)
| | - Florentinus D. O. Riswanto
- Research Group of Computer-Aided Drug Design and Discovery of Bioactive Natural Products, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta 55282, Indonesia; (S.S.W.W.); (M.R.S.Y.); (F.D.O.R.)
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Bai X, Liu CM, Li HJ, Zhang ZP, Cui WB, An FL, Zhang ZX, Wang DS, Fei DQ. Ethyl caffeate attefnuates Aβ-induced toxicity in Caenorhabditis elegans AD models via the insulin/insulin-like growth factor-1 signaling pathway. Bioorg Chem 2023; 139:106714. [PMID: 37454496 DOI: 10.1016/j.bioorg.2023.106714] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/21/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
The pathogenesis of Alzheimer's disease (AD), a multifactorial progressive neurodegenerative disease associated with aging, is unclear. Ethyl caffeate is a plant polyphenol that has been reported to have neuroprotective effects, but the mechanisms by which it acts are unclear. In this study, for the first time, we investigated the molecular mechanism of its anti-AD properties using the Caernorhabditis elegans model. The results of our experiments showed that ethyl caffeate delayed the paralysis symptoms of CL4176 to a different extent and reduced the exogenous 5-hydroxytryptophan-induced paralysis phenotype. Further studies revealed that ethyl caffeate lowered Aβ plaques and depressed the expression of Aβ monomers and oligomers, but did not influence the mRNA levels of Aβ. Moreover, it was able to bring paraquat-induced ROS levels down to near-standard conditions. Real-time quantitative PCR experiment showed a significant upregulation of the transcript abundance of daf-16, skn-1 and hsf-1, key factors associated with the insulin/insulin-like growth factor 1 (IGF-1) signaling pathway (IIS), and their downstream genes sod-3, gst-4 and hsp-16.2. It was further shown that ethyl caffeate activated the translocation of DAF-16 and SKN-1 from the cytoplasm to the nucleus and enhanced the expression of sod-3::GFP, gst-4::GFP and hsp-16.2::GFP in transgenic nematodes. This meant that the protection against Aβ toxicity by ethyl caffeate may be partly through the IIS signaling pathway. In addition, ethyl caffeate suppressed the aggregation of polyglutamine proteins in AM141, which indicated a potential protective effect against neurodegenerative diseases based on abnormal folding and aggregation of amyloid proteins. Taken together, ethyl caffeate is expected to develop as a potential drug for the management of AD.
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Affiliation(s)
- Xue Bai
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Chun-Min Liu
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Hui-Jie Li
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Zong-Ping Zhang
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Wen-Bo Cui
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Feng-Li An
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
| | - Zhan-Xin Zhang
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
| | - Dong-Sheng Wang
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
| | - Dong-Qing Fei
- School of Pharmacy and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China.
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Plirat W, Chaniad P, Phuwajaroanpong A, Konyanee A, Viriyavejakul P, Septama AW, Punsawad C. Efficacy of artesunate combined with Atractylodes lancea or Prabchompoothaweep remedy extracts as adjunctive therapy for the treatment of cerebral malaria. BMC Complement Med Ther 2023; 23:332. [PMID: 37730604 PMCID: PMC10510250 DOI: 10.1186/s12906-023-04150-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/04/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Cerebral malaria is one of the most serious complications of Plasmodium infection and causes behavioral changes. However, current antimalarial drugs have shown poor outcomes. Therefore, new antimalarials with neuroprotective effects are urgently needed. This study aimed to evaluate the effects of selected extracts as monotherapy or adjunctive therapy with artesunate on antimalarial, anti-inflammatory, antioxidant, and neuroprotective properties in experimental cerebral malaria (ECM). METHODS ECM was induced in male C57BL/6 mice by infection with Plasmodium berghei ANKA (PbA). Ethanolic extracts of Atractylodes lancea (a dose of 400 mg/kg) and Prabchompoothaweep remedy (a dose of 600 mg/kg) were evaluated as monotherapy and adjunctive therapy combined with artesunate at the onset of signs of cerebral malaria and continued for 7 consecutive days. Parasitemia, clinical scores, and body weight were recorded throughout the study. At day 13 post-infection, mouse brains were dissected and processed for the study of the inflammatory response, oxidative stress, blood-brain barrier (BBB) integrity, histopathological changes, and neurocognitive impairments. RESULTS Ethanolic extracts of A. lancea and Prabchompoothaweep remedy alone improved cerebral malaria outcome in ECM, whereas artesunate combined with extracts of A. lancea or Prabchompoothaweep remedy significantly improved the outcome of artesunate and crude extracts alone. Using real-time PCR, PbA-infected mice that had received the combination treatment showed significantly reduced gene expression of inflammatory cytokines (TNF-α, IL-1β, IL-6, and IL-10), chemokines (CXCL4 and CXCL10), and adhesion molecules (ICAM-1, VCAM1, and CD36). The PbA-infected mice that received the combination treatment showed a significantly decreased malondialdehyde level compared to the untreated group. Similarly, the Evans blue dye assay revealed significantly less dye extravasation in the brains of infected mice administered the combination treatment, indicating improved BBB integrity. Combination treatment improved survival and reduced pathology in the PbA-infected group. Additionally, combination treatment resulted in a significantly reduced level of cognitive impairment, which was analyzed using a novel object recognition test. CONCLUSIONS This study demonstrated that artesunate combined with A. lancea or Prabchompoothaweep remedy extracts as adjunctive therapy reduced mortality, neuroinflammation, oxidative stress, BBB integrity protection, and neurocognitive impairment in the ECM.
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Affiliation(s)
- Walaiporn Plirat
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Prapaporn Chaniad
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Arisara Phuwajaroanpong
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Atthaphon Konyanee
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | | | - Abdi Wira Septama
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, National Research and Innovation Agency (BRIN), Cibinong Science Center, Cibinong, West Java, 16915, Indonesia
| | - Chuchard Punsawad
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand.
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat, 80160, Thailand.
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Maciuk A, Mazier D, Duval R. Future antimalarials from Artemisia? A rationale for natural product mining against drug-refractory Plasmodium stages. Nat Prod Rep 2023; 40:1130-1144. [PMID: 37021639 DOI: 10.1039/d3np00001j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Covering: up to 2023Infusions of the plants Artemisia annua and A. afra are gaining broad popularity to prevent or treat malaria. There is an urgent need to address this controversial public health question by providing solid scientific evidence in relation to these uses. Infusions of either species were shown to inhibit the asexual blood stages, the liver stages including the hypnozoites, but also the sexual stages, the gametocytes, of Plasmodium parasites. Elimination of hypnozoites and sterilization of mature gametocytes remain pivotal elements of the radical cure of P. vivax, and the blockage of P. vivax and P. falciparum transmission, respectively. Drugs active against these stages are restricted to the 8-aminoquinolines primaquine and tafenoquine, a paucity worsened by their double dependence on the host genetic to elicit clinical activity without severe toxicity. Besides artemisinin, these Artemisia spp. contain many natural products effective against Plasmodium asexual blood stages, but their activity against hypnozoites and gametocytes was never investigated. In the context of important therapeutic issues, we provide a review addressing (i) the role of artemisinin in the bioactivity of these Artemisia infusions against specific parasite stages, i.e., alone or in association with other phytochemicals; (ii) the mechanisms of action and biological targets in Plasmodium of ca. 60 infusion-specific Artemisia phytochemicals, with an emphasis on drug-refractory parasite stages (i.e., hypnozoites and gametocytes). Our objective is to guide the strategic prospecting of antiplasmodial natural products from these Artemisia spp., paving the way toward novel antimalarial "hit" compounds either naturally occurring or Artemisia-inspired.
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Affiliation(s)
| | - Dominique Mazier
- CIMI, CNRS, Inserm, Faculté de Médecine Sorbonne Université, 75013 Paris, France
| | - Romain Duval
- MERIT, IRD, Université Paris Cité, 75006 Paris, France.
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Nguyen PT, Nakamura Y, Tran NQV, Ishimaru K, Nguyen TA, Kobayashi Y, Watanabe-Saito F, Okuda T, Nakano N, Nakao A. Ethyl Caffeate Can Inhibit Aryl Hydrocarbon Receptor (AhR) Signaling and AhR-Mediated Potentiation of Mast Cell Activation. Int J Mol Sci 2023; 24:9997. [PMID: 37373144 DOI: 10.3390/ijms24129997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023] Open
Abstract
Ethyl caffeate (EC) is a natural phenolic compound that is present in several medicinal plants used to treat inflammatory disorders. However, its anti-inflammatory mechanisms are not fully understood. Here, we report that EC inhibits aryl hydrocarbon receptor (AhR) signaling and that this is associated with its anti-allergic activity. EC inhibited AhR activation, induced by the AhR ligands FICZ and DHNA in AhR signaling-reporter cells and mouse bone marrow-derived mast cells (BMMCs), as assessed by AhR target gene expressions such as CYP1A1. EC also inhibited the FICZ-induced downregulation of AhR expression and DHNA-induced IL-6 production in BMMCs. Furthermore, the pretreatment of mice with orally administered EC inhibited DHNA-induced CYP1A1 expression in the intestine. Notably, both EC and CH-223191, a well-established AhR antagonist, inhibited IgE-mediated degranulation in BMMCs grown in a cell culture medium containing significant amounts of AhR ligands. Furthermore, oral administration of EC or CH-223191 to mice inhibited the PCA reaction associated with the suppression of constitutive CYP1A1 expression within the skin. Collectively, EC inhibited AhR signaling and AhR-mediated potentiation of mast cell activation due to the intrinsic AhR activity in both the culture medium and normal mouse skin. Given the AhR control of inflammation, these findings suggest a novel mechanism for the anti-inflammatory activity of EC.
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Affiliation(s)
- Phuc-Tan Nguyen
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Yuki Nakamura
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Nguyen Quoc Vuong Tran
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Kayoko Ishimaru
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Thuy-An Nguyen
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Yoshiaki Kobayashi
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | - Fumie Watanabe-Saito
- The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan
| | - Tohru Okuda
- The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan
| | - Nobuhiro Nakano
- Atopy Research Center, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Atsuhito Nakao
- Department of Immunology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
- Atopy Research Center, Juntendo University School of Medicine, Tokyo 113-8421, Japan
- Yamanashi GLIA Center, University of Yamanashi, Yamanashi 409-3898, Japan
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9
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Degotte G, Pendeville H, Di Chio C, Ettari R, Pirotte B, Frédérich M, Francotte P. Dimeric polyphenols to pave the way for new antimalarial drugs. RSC Med Chem 2023; 14:715-733. [PMID: 37122550 PMCID: PMC10131582 DOI: 10.1039/d2md00392a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
Because of the threat of resistant Plasmodium sp., new orally active antimalarials are urgently needed. Inspired by the structure of ellagic acid, exhibiting potent in vivo and in vitro antiplasmodial effects, polyphenolic structures possessing a similar activity-safety profile were synthesized. Indeed, most exhibited a marked in vitro effect (IC50 < 4 μM) on resistant P. falciparum, without any detrimental effects reported during the toxicity assays (hemolysis, cytotoxicity, in vivo). In addition, they possessed a greater hydrosolubility (from 7 μM to 2.7 mM) compared to ellagic acid. Among them, 30 is the most promising for antimalarial purposes since it displayed a significant parasitaemia reduction after oral administration in mice (50 mg kg-1) compared to the orally ineffective ellagic acid. In conclusion, our investigations led to the identification of a promising scaffold, which could bring new insights for malaria treatment.
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Affiliation(s)
- Gilles Degotte
- Laboratory of Medicinal Chemistry, CIRM, Department of Pharmacy, University of Liège Quartier Hôpital - B36 Tower 4, +5, Avenue Hippocrate 15 4000 Liège Belgium
- Laboratory of Pharmacognosy, CIRM, Department of Pharmacy, University of Liège Quartier Hôpital - B36 Tower 4, +5, Avenue Hippocrate 15 4000 Liège Belgium
| | - Hélène Pendeville
- Platform Zebrafish facility & transgenics, GIGA, University of Liège Quartier Hôpital - B34, +2, Avenue de l'Hôpital 11 4000 Liège Belgium
| | - Carla Di Chio
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche e ambientali, Università degli Studi di Messina Viale Annunziata 98168 Messina Italy
| | - Roberta Ettari
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche e ambientali, Università degli Studi di Messina Viale Annunziata 98168 Messina Italy
| | - Bernard Pirotte
- Laboratory of Medicinal Chemistry, CIRM, Department of Pharmacy, University of Liège Quartier Hôpital - B36 Tower 4, +5, Avenue Hippocrate 15 4000 Liège Belgium
| | - Michel Frédérich
- Laboratory of Pharmacognosy, CIRM, Department of Pharmacy, University of Liège Quartier Hôpital - B36 Tower 4, +5, Avenue Hippocrate 15 4000 Liège Belgium
| | - Pierre Francotte
- Laboratory of Medicinal Chemistry, CIRM, Department of Pharmacy, University of Liège Quartier Hôpital - B36 Tower 4, +5, Avenue Hippocrate 15 4000 Liège Belgium
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10
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Jamil SNH, Ali AH, Feroz SR, Lam SD, Agustar HK, Mohd Abd Razak MR, Latip J. Curcumin and Its Derivatives as Potential Antimalarial and Anti-Inflammatory Agents: A Review on Structure-Activity Relationship and Mechanism of Action. Pharmaceuticals (Basel) 2023; 16:ph16040609. [PMID: 37111366 PMCID: PMC10146798 DOI: 10.3390/ph16040609] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Curcumin, one of the major ingredients of turmeric (Curcuma longa), has been widely reported for its diverse bioactivities, including against malaria and inflammatory-related diseases. However, curcumin's low bioavailability limits its potential as an antimalarial and anti-inflammatory agent. Therefore, research on the design and synthesis of novel curcumin derivatives is being actively pursued to improve the pharmacokinetic profile and efficacy of curcumin. This review discusses the antimalarial and anti-inflammatory activities and the structure-activity relationship (SAR), as well as the mechanisms of action of curcumin and its derivatives in malarial treatment. This review provides information on the identification of the methoxy phenyl group responsible for the antimalarial activity and the potential sites and functional groups of curcumin for structural modification to improve its antimalarial and anti-inflammatory actions, as well as potential molecular targets of curcumin derivatives in the context of malaria and inflammation.
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Affiliation(s)
- Siti Nur Hidayah Jamil
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
| | - Amatul Hamizah Ali
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
| | - Shevin Rizal Feroz
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
| | - Su Datt Lam
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
| | - Hani Kartini Agustar
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
| | - Mohd Ridzuan Mohd Abd Razak
- Herbal Medicine Research Centre, Institute for Medical Research, National Institute of Health (NIH) Complex, Ministry of Health Malaysia, Shah Alam 40170, Selangor, Malaysia
| | - Jalifah Latip
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
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11
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Towards Arginase Inhibition: Hybrid SAR Protocol for Property Mapping of Chlorinated N-arylcinnamamides. Int J Mol Sci 2023; 24:ijms24043611. [PMID: 36835023 PMCID: PMC9968098 DOI: 10.3390/ijms24043611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
A series of seventeen 4-chlorocinnamanilides and seventeen 3,4-dichlorocinnamanilides were characterized for their antiplasmodial activity. In vitro screening on a chloroquine-sensitive strain of Plasmodium falciparum 3D7/MRA-102 highlighted that 23 compounds possessed IC50 < 30 µM. Typically, 3,4-dichlorocinnamanilides showed a broader range of activity compared to 4-chlorocinnamanilides. (2E)-N-[3,5-bis(trifluoromethyl)phenyl]-3-(3,4-dichlorophenyl)prop-2-en-amide with IC50 = 1.6 µM was the most effective agent, while the other eight most active derivatives showed IC50 in the range from 1.8 to 4.6 µM. A good correlation between the experimental logk and the estimated clogP was recorded for the whole ensemble of the lipophilicity generators. Moreover, the SAR-mediated similarity assessment of the novel (di)chlorinated N-arylcinnamamides was conducted using the collaborative (hybrid) ligand-based and structure-related protocols. In consequence, an 'averaged' selection-driven interaction pattern was produced based in namely 'pseudo-consensus' 3D pharmacophore mapping. The molecular docking approach was engaged for the most potent antiplasmodial agents in order to gain an insight into the arginase-inhibitor binding mode. The docking study revealed that (di)chlorinated aromatic (C-phenyl) rings are oriented towards the binuclear manganese cluster in the energetically favorable poses of the chloroquine and the most potent arginase inhibitors. Additionally, the water-mediated hydrogen bonds were formed via carbonyl function present in the new N-arylcinnamamides and the fluorine substituent (alone or in trifluoromethyl group) of N-phenyl ring seems to play a key role in forming the halogen bonds.
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12
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Saivish MV, Pacca CC, da Costa VG, de Lima Menezes G, da Silva RA, Nebo L, da Silva GCD, de Aguiar Milhim BHG, da Silva Teixeira I, Henrique T, Mistrão NFB, Hernandes VM, Zini N, de Carvalho AC, Fontoura MA, Rahal P, Sacchetto L, Marques RE, Nogueira ML. Caffeic Acid Has Antiviral Activity against Ilhéus Virus In Vitro. Viruses 2023; 15:494. [PMID: 36851709 PMCID: PMC9961518 DOI: 10.3390/v15020494] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/28/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Ilhéus virus (ILHV) is a neglected mosquito-borne flavivirus. ILHV infection may lead to Ilhéus fever, an emerging febrile disease like dengue fever with the potential to evolve into a severe neurological disease characterized by meningoencephalitis; no specific treatments are available for this disease. This study assessed the antiviral properties of caffeic acid, an abundant component of plant-based food products that is also compatible with the socioeconomic limitations associated with this neglected infectious disease. The in vitro activity of caffeic acid on ILHV replication was investigated in Vero and A549 cell lines using plaque assays, quantitative RT-PCR, and immunofluorescence assays. We observed that 500 µM caffeic acid was virucidal against ILHV. Molecular docking indicated that caffeic acid might interact with an allosteric binding site on the envelope protein.
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Affiliation(s)
- Marielena Vogel Saivish
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
- Brazilian Biosciences National Laboratory, Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas 13083-100, SP, Brazil
| | - Carolina Colombelli Pacca
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
- Laboratório de Estudos Genômicos, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto 15054-000, SP, Brazil
- Faceres Medical School, São José do Rio Preto 15090-000, SP, Brazil
| | - Vivaldo Gomes da Costa
- Laboratório de Estudos Genômicos, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto 15054-000, SP, Brazil
| | - Gabriela de Lima Menezes
- Departamento de Biofísica e Farmacologia, Universidade Federal do Rio Grande do Norte, Natal 59072-970, RN, Brazil
- Unidade Especial de Ciências Exatas, Universidade Federal de Jataí, Jataí 75801-615, GO, Brazil
| | | | - Liliane Nebo
- Unidade Especial de Ciências Exatas, Universidade Federal de Jataí, Jataí 75801-615, GO, Brazil
| | - Gislaine Celestino Dutra da Silva
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Bruno Henrique Gonçalves de Aguiar Milhim
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Igor da Silva Teixeira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Tiago Henrique
- Laboratório de Marcadores Moleculares e Bioinformática, Departamento de Biologia Molecular, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Natalia Franco Bueno Mistrão
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Victor Miranda Hernandes
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Nathalia Zini
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Ana Carolina de Carvalho
- Brazilian Biosciences National Laboratory, Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas 13083-100, SP, Brazil
| | - Marina Alves Fontoura
- Brazilian Biosciences National Laboratory, Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas 13083-100, SP, Brazil
| | - Paula Rahal
- Laboratório de Estudos Genômicos, Departamento de Biologia, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto 15054-000, SP, Brazil
| | - Lívia Sacchetto
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
| | - Rafael Elias Marques
- Brazilian Biosciences National Laboratory, Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas 13083-100, SP, Brazil
| | - Maurício Lacerda Nogueira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Dermatológicas, Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto 15090-000, SP, Brazil
- Brazilian Biosciences National Laboratory, Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas 13083-100, SP, Brazil
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX 77555, USA
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Pappalardo V, Ravasio N, Falletta E, De Rosa MC, Zaccheria F. A Green Lipophilization Reaction of a Natural Antioxidant. Antioxidants (Basel) 2023; 12:antiox12020218. [PMID: 36829780 PMCID: PMC9952416 DOI: 10.3390/antiox12020218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
A natural antioxidant, widely spread in plants, chlorogenic acid (CGA), can be lipophilized through a heterogeneous, non-enzymatic, catalytic process. Thus, sulfonic resins under no solvent conditions allow to obtain a series of esters in up to 93% yield through reaction of CGA with fatty alcohols of different chain length. The reaction takes place in one single step under mild conditions with conversions up to 96% and selectivity up to 99%. Product recovery in high purity was very easy and the esters obtained were fully characterized with spectroscopic techniques and through the DPPH test to verify the preservation of antioxidant activity. According to this test, all of them showed increased activity with respect to the parent acid and anyway higher than butylated hydroxyanisole. An in-silico method also suggested their very low toxicity. The increased lipophilicity of the esters allows their formulation in cosmetic and nutraceutic lipid-based products.
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Affiliation(s)
- Valeria Pappalardo
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Via Golgi 19, 20133 Milano, Italy
| | - Nicoletta Ravasio
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Via Golgi 19, 20133 Milano, Italy
- Correspondence: ; Tel.: +39-02-50314382
| | - Ermelinda Falletta
- Department of Chemistry, University of Milan, Via C. Golgi 19, 20133 Milano, Italy
| | - Maria Cristina De Rosa
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Largo F. Vito, 1, 00168 Rome, Italy
| | - Federica Zaccheria
- National Research Council-Institute of Chemical Sciences and Technology (CNR-SCITEC) “G. Natta”, Via Golgi 19, 20133 Milano, Italy
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14
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Insights into Antimalarial Activity of N-Phenyl-Substituted Cinnamanilides. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227799. [PMID: 36431900 PMCID: PMC9698057 DOI: 10.3390/molecules27227799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Due to the urgent need of innovation in the antimalarial therapeutic arsenal, a series of thirty-seven ring-substituted N-arylcinnamanilides prepared by microwave-assisted synthesis were subjected to primary screening against the chloroquine-sensitive strain of P. falciparum 3D7/MRA-102. The lipophilicity of all compounds was experimentally determined as the logarithm of the capacity factor k, and these data were subsequently used in the discussion of structure-activity relationships. Among the screened compounds, fourteen derivatives exhibited IC50 from 0.58 to 31 µM, whereas (2E)-N-(4-bromo-2-chlorophenyl)-3-phenylprop-2-enamide (24) was the most effective agent (IC50 = 0.58 µM). In addition, (2E)-N-[2,6-dibromo-4-(trifluoromethyl)- phenyl]-3-phenylprop-2-enamide (36), (2E)-N-[4-nitro-3-(trifluoromethyl)phenyl]-3-phenylprop- 2-enamide (18), (2E)-N-(2-bromo-5-fluorophenyl)-3-phenylprop-2-enamide (23), and (2E)-3-phenyl-N-(3,4,5-trichlorophenyl)prop-2-enamide (33) demonstrated efficacy in the IC50 range from 2.0 to 4.3 µM, comparable to the clinically used standard chloroquine. The results of a cell viability screening performed using THP1-Blue™ NF-κB cells showed that none of these highly active compounds displayed any significant cytotoxic effect up to 20 μM, which makes them promising Plasmodium selective substances for further investigations.
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15
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Daniyan MO, Fisusi FA, Adeoye OB. Neurotransmitters and molecular chaperones interactions in cerebral malaria: Is there a missing link? Front Mol Biosci 2022; 9:965569. [PMID: 36090033 PMCID: PMC9451049 DOI: 10.3389/fmolb.2022.965569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/28/2022] [Indexed: 12/02/2022] Open
Abstract
Plasmodium falciparum is responsible for the most severe and deadliest human malaria infection. The most serious complication of this infection is cerebral malaria. Among the proposed hypotheses that seek to explain the manifestation of the neurological syndrome in cerebral malaria is the vascular occlusion/sequestration/mechanic hypothesis, the cytokine storm or inflammatory theory, or a combination of both. Unfortunately, despite the increasing volume of scientific information on cerebral malaria, our understanding of its pathophysiologic mechanism(s) is still very limited. In a bid to maintain its survival and development, P. falciparum exports a large number of proteins into the cytosol of the infected host red blood cell. Prominent among these are the P. falciparum erythrocytes membrane protein 1 (PfEMP1), P. falciparum histidine-rich protein II (PfHRP2), and P. falciparum heat shock proteins 70-x (PfHsp70-x). Functional activities and interaction of these proteins with one another and with recruited host resident proteins are critical factors in the pathology of malaria in general and cerebral malaria in particular. Furthermore, several neurological impairments, including cognitive, behavioral, and motor dysfunctions, are known to be associated with cerebral malaria. Also, the available evidence has implicated glutamate and glutamatergic pathways, coupled with a resultant alteration in serotonin, dopamine, norepinephrine, and histamine production. While seeking to improve our understanding of the pathophysiology of cerebral malaria, this article seeks to explore the possible links between host/parasite chaperones, and neurotransmitters, in relation to other molecular players in the pathology of cerebral malaria, to explore such links in antimalarial drug discovery.
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Affiliation(s)
- Michael Oluwatoyin Daniyan
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
- *Correspondence: Michael Oluwatoyin Daniyan, ,
| | - Funmilola Adesodun Fisusi
- Drug Research and Production Unit, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Olufunso Bayo Adeoye
- Department of Biochemistry, Benjamin S. Carson (Snr.) College of Medicine, Babcock University, Ilishan-Remo, Ogun State, Nigeria
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In Vivo Antiplasmodial Potential of the Leaf, Mesocarp, and Epicarp of the Raphia hookeri Plant in Mice Infected with Plasmodium berghei NK65. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:4129045. [PMID: 35873624 PMCID: PMC9300302 DOI: 10.1155/2022/4129045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 06/01/2022] [Accepted: 06/10/2022] [Indexed: 11/24/2022]
Abstract
Results The presence of alkaloids, fats and oils, phenolic, and flavonoids was detected via the qualitative test which was confirmed from the result obtained from the GC-MS chromatogram of ethanolic leaves extract. The GC-MS chromatogram of the constituents analogous to the twenty peaks was analyzed as follows: dodecanoic acid (1.94%), 2-undecanone (3.42%), hexadecanoic acid (44.84%), oleic acid (7.45%), octadecanoic acid (8.41%), narcissidine (2.38%), 1-dotriacontanol (2.38%), α-sitosterol (2.02%), and lupeol (1.42%). The total phenolics and flavonoids of 118 and 23.3702 mg/g were analyzed in the leaves extract. The leave extract exhibited inhibitory activity of 73.49% against free radicals which could lead to inflammation. The extracts and chloroquine-treated groups showed significant decrease in percentage parasitaemia with pronounced activity observed in chloroquine groups. Conclusion The curative and scavenging potencies of studied plant could be attributed to the metabolites analyzed and could guide the formulation of new pharmacophores against malaria infections and inflammations.
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17
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Antiplasmodial activity of Benth. Leaf and bark extracts against infected mice. Saudi J Biol Sci 2022; 29:2475-2482. [PMID: 35531230 PMCID: PMC9073002 DOI: 10.1016/j.sjbs.2021.12.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 12/06/2021] [Accepted: 12/09/2021] [Indexed: 12/17/2022] Open
Abstract
Ethnopharmacology relevance Morinda lucida is an ethnopharmacologically important plant that has traditionally been used to treat malaria in the Southwest of Nigeria. The aim of this study is to look into the antiplasmodial properties of different solvent extracts of Morinda lucida bark and leaves. Materials and methods The antiplasmodial model, (or curative assay), was tested against Plasmodium berghei NK65, a chloroquine-sensitive Plasmodium berghei strain. In experimental mice, parasitaemia, percentage inhibition, weight changes, and packed cell volume were measured and compared to chloroquine (10 mg kg−1). Standard phytochemical procedures were used to evaluate the extracts' chemo-profile. Results and Discussion Phytochemical analysis of the extracts revealed the presence of tannins, alkaloids, steroids, saponins, phenols, and alkaloids, among other metabolites. The highest quantities of total phenolic, total tannins, and total flavonoid content were found in 50% ethanolic extracts. There was significant decrease in the body weight of the mice after inoculation, however, after administration of crude extracts, an increase in weight was observed. A negative variation (-3.00 g) was observed in group without treatment. The ethanolic crude extracts (200 and 400 mg/kg) significantly increased the packed cell volume compared to other extracts. CQ treated experimental mice showed 100% inhibition with activity greater than extracts treated groups. The lowest inhibitory effect was observed in 200 mg/kg ethanolic bark extract treated group with activity of 72.16%. The antiplasmodial activities exhibited by these extracts could be linked to the chemical constituents investigated. Conclusion The findings of this study suggest the use of M. lucida leaves and bark as a medicinal agent for malaria treatment and as a potential source of effective antimalarial templates. Further research is needed to determine the safety and toxicological profile of these extracts in vivo.
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Gillesa D, Bernarda P, Pierre F, Michel F. Potential of Caffeic Acid Derivatives as Antimalarial Leads. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220202160247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Background
Malaria remained one of the deadliest infectious diseases in 2021. Indeed, this infection, mostly caused by a protozoan called Plasmodium falciparum, is responsible for more than 200 million cases and around 400 000 related deaths annually, mainly in Africa. Despite the availability of efficient drugs, an increase of patients has occurred since 2015, which could be due to the development of resistances from the parasite, but also from its vectors, Anopheles mosquitoes. Consequently, it is necessary to search for new alternative treatments.
Methods:
Methods
Polyphenols, and more precisely small phenolic acids, could represent a good starting point for new antimalarials. Indeed, these molecules, including caffeic acid (1), possess several pharmacological activities and an interesting pharmacokinetic profile. Therefore, we have developed several small derivatives of this scaffold to define the potential pharmacophore responsible for the antiplasmodial properties
Results:
Results
A good to low activity on Plasmodium falciparum (IC50 = 16-241 µM) was observed, especially for the small ester derivatives (2-6). These molecules were good antiplasmodials compared to their mother compound (IC50 = 80 µM) and showed selectivity against human cells. These structures have also highlighted the need for catechol and carboxyl moieties in the anti-Plasmodium effect.
Conclusion:
Conclusion
None of the synthetic caffeate derivatives reported here seemed sufficiently effective to become a potential antimalarial (IC50 < 1 µM). However, the significant increase of their efficacy on the malarial agent and the selectivity to human cells, highlighted their potential as new leads for future developments
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Affiliation(s)
- Degotte Gillesa
- Laboratory of Medicinal Chemistry, CIRM, University of Liège, Liège, Belgium
- Laboratory of Pharmacognosy, CIRM, University of Liège, Liège, Belgium
| | - Pirotte Bernarda
- Laboratory of Medicinal Chemistry, CIRM, University of Liège, Liège, Belgium
| | - Francotte Pierre
- Laboratory of Medicinal Chemistry, CIRM, University of Liège, Liège, Belgium
| | - Frédérich Michel
- Laboratory of Pharmacognosy, CIRM, University of Liège, Liège, Belgium
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Saraux N, Imeri D, Quirós-Guerrero L, Karimou S, Christen P, Cuendet M. Phytochemical Investigation of the Roots of Ipomoea asarifolia and Antiproliferative Activity of the Isolated Compounds against Multiple Myeloma Cells. JOURNAL OF NATURAL PRODUCTS 2022; 85:56-62. [PMID: 34969245 DOI: 10.1021/acs.jnatprod.1c00649] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ipomoea asarifolia is a herbaceous plant belonging to the family Convolvulaceae and is native to tropical regions of Africa, America, and Asia. A dichloromethane root extract showed antiproliferative activity against multiple myeloma cells (RPMI 8226). The phytochemical investigation led to the isolation of 15 compounds. Compounds 1-4, named (4S,8S)-1-(furan-3-yl)-9-hydroxy-4,8-dimethylnonane-1,6-dione, isoferulic acid hexadecyl ester, caffeic acid hexadecyl ester, and asarifolin I, respectively, are described for the first time. The structures of these molecules were established from their NMR, UV, IR spectroscopic, and MS data. 4-Hydroxycinnamic acid hexadecyl ester (5), 4-hydroxycinnamic acid octadecyl ester (6), 4-hydroxycinnamic acid eicosyl ester (7), caffeic acid octadecyl ester (8), pescapreins III, IV, XXI, XXIII, XXV, and XXVI (9-14), and stoloniferin III (15) were also isolated. All compounds were tested against a multiple myeloma cell line (RPMI 8226). When their IC50 value was lower than 10 μM, the compounds were also tested against two other multiple myeloma cell lines, MM.1S and MM.1R. Compound 3 was the most potent, with an IC50 value of 3.0 μM against RPMI 8226 cells.
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Affiliation(s)
- Noémie Saraux
- School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1211 Geneva 4, Switzerland
| | - Deniza Imeri
- School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1211 Geneva 4, Switzerland
| | - Luis Quirós-Guerrero
- School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1211 Geneva 4, Switzerland
| | | | - Philippe Christen
- School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1211 Geneva 4, Switzerland
| | - Muriel Cuendet
- School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, 1211 Geneva 4, Switzerland
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Nugraha AS, Purnomo YD, Widhi Pratama AN, Triatmoko B, Hendra R, Wongso H, Avery VM, Keller PA. Isolation of Antimalarial Agents From Indonesian Medicinal Plants: Swietenia mahagoni and Pluchea indica. Nat Prod Commun 2022. [DOI: 10.1177/1934578x211068926] [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
Malaria is a neglected tropical disease that still demands serious efforts to tackle successfully, including the need for new antimalarial lead compounds to combat drug-resistant Plasmodium. Intensive phytochemical and pharmacological investigation into the Indonesian medicinal plants Swietenia mahagoni and Pluchea indica successfully revealed 5 constituents. Antimalarial bioassays indicated 34,5-tri- O-caffeoylquinic acid (4) to be the most active against Plasmodium falciparum 3D7 and Dd2 strains with IC50 values of 8.2 and 8.8 µM, respectively. No cytotoxicity was observed against Human Embryonic Kidney cells at a concentration of 40 µM.
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Affiliation(s)
- Ari S. Nugraha
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
- School of Chemistry & Molecular Bioscience and Molecular Horizons, University of Wollongong,Wollongong, NSW, Australia
- Illawarra Health & Medical Research Institute, Wollongong, NSW, Australia
| | - Yoshinta D. Purnomo
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
| | - Antonius N. Widhi Pratama
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
| | - Bawon Triatmoko
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember, Indonesia
| | - Rudi Hendra
- School of Chemistry, University of Riau, Riau, Indonesia
| | - Hendris Wongso
- School of Chemistry & Molecular Bioscience and Molecular Horizons, University of Wollongong,Wollongong, NSW, Australia
- Illawarra Health & Medical Research Institute, Wollongong, NSW, Australia
- Center for Applied Nuclear Science and Technology, National Nuclear Energy Agency, Bandung, Indonesia
| | - Vicky M. Avery
- Discovery Biology, Griffith University, Brisbane, QLD, Australia
- School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Paul A. Keller
- School of Chemistry & Molecular Bioscience and Molecular Horizons, University of Wollongong,Wollongong, NSW, Australia
- Illawarra Health & Medical Research Institute, Wollongong, NSW, Australia
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Cardona-G W, Robledo SM, Prieto LJ, Yépes AF. S-allylCysteine Ester/Caffeic Acid Amide Hybrids as Promising Antiprotozoal Candidates: Synthesis, Biological Evaluation and Molecular Modeling Studies. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Nuwagira C, Peter EL, Ajayi CO, Adriko J, Kagoro GR, Olet EA, Ogwang PE, Tolo CU. Developmental stages influence in vivo antimalarial activity of aerial part extracts of Schkuhria pinnata. JOURNAL OF ETHNOPHARMACOLOGY 2021; 279:114341. [PMID: 34144195 DOI: 10.1016/j.jep.2021.114341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/03/2021] [Accepted: 06/14/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Malaria remains a dire health challenge, particularly in sub-Saharan Africa. In Uganda, it is the most ordinary condition in hospital admission and outpatient care. The country's meager health services compel malaria patients to use herbal remedies such as Schkuhria pinnata (Lam.) Kuntze ex Thell (Asteraceae). Although in vivo studies tested the antimalarial activity of S. pinnata extracts, plant developmental stages and their effect at different doses remain unknown. AIM OF THE STUDY This study aims to determine the effect of the plant developmental stage on the antimalarial activity of S. pinnata in mice and to document the acute oral toxicity profile. METHODS Seeds of S. pinnata were grown, and aerial parts of each developmental stage were harvested. Extraction was done by maceration in 70% methanol. The antimalarial activity was evaluated using chloroquine-sensitive Plasmodium berghei on swiss albino mice, in a chemosuppressive test, at 150, 350, and 700 mg/kg, p.o. Standard drugs used were artemether-lumefantrine (0.57 + 3.43) mg/kg and chloroquine (10 mg/kg) as positive controls. Distilled water at 1 mL/100g was used as a negative control. The Lorke method was adopted to determine the acute toxicity of extracts. RESULTS The flowering stage extract had a maximum suppression of parasitemia at 700 mg/kg (68.83 ± 4.49%). Extract at other developmental stages also significantly suppressed the parasitemia (in the ascending order) fruiting (50.71 ± 1.87%), budding (54.92 ± 7.56%), vegetative (55.39 ± 2.01%) compared to the negative control (24.7 ± 2.7%), p < 0.05. Extracts from all developmental stages increased survival time, with the flowering stage having the highest survival time at 20.33 ± 0.88 days. All extracts had an LD50 of 2157 mg/kg, implying that extracts are safe at lower doses. CONCLUSION Together, our findings revealed that the S. pinnata extracts at the flowering stage had superior antimalarial activity compared to other plant developmental stages. Extracts from all developmental stages have demonstrated a dose-dependent suppression of malarial parasites and increased survival time with an LD50 of 2157 mg/kg. Thus, for better antimalarial activity, local communities could consider harvesting S. pinnata at the flowering stage. Further studies are needed to isolate pure compounds from S. pinnata and determine their antimalarial activity.
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Affiliation(s)
- Catherine Nuwagira
- Department of Biology, Faculty of Science, Mbarara University of Science and Technology, Mbarara, Uganda; Pharm-Biotechnology and Traditional Medicine Center, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - Emanuel L Peter
- Department of Pharmacy, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Innovation, Technology Transfer and Commercialization, National Institute for Medical Research, Dar Es Salaam, Tanzania.
| | - Clement Olusoji Ajayi
- Pharm-Biotechnology and Traditional Medicine Center, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Pharmacy, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - John Adriko
- Department of Plant Science and Biotechnology, National Agricultural Research Laboratories, Kampala, Uganda.
| | - Grace-Rugunda Kagoro
- Department of Biology, Faculty of Science, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - Eunice Apio Olet
- Department of Biology, Faculty of Science, Mbarara University of Science and Technology, Mbarara, Uganda; Pharm-Biotechnology and Traditional Medicine Center, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - Patrick Engeu Ogwang
- Pharm-Biotechnology and Traditional Medicine Center, Mbarara University of Science and Technology, Mbarara, Uganda; Department of Pharmacy, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda.
| | - Casim Umba Tolo
- Department of Biology, Faculty of Science, Mbarara University of Science and Technology, Mbarara, Uganda; Pharm-Biotechnology and Traditional Medicine Center, Mbarara University of Science and Technology, Mbarara, Uganda.
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23
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Degotte G, Pirotte B, Frédérich M, Francotte P. Polyhydroxybenzoic acid derivatives as potential new antimalarial agents. Arch Pharm (Weinheim) 2021; 354:e2100190. [PMID: 34346088 DOI: 10.1002/ardp.202100190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/27/2021] [Accepted: 07/01/2021] [Indexed: 11/11/2022]
Abstract
With more than 200 million cases and 400,000 related deaths, malaria remains one of the deadliest infectious diseases of 2021. Unfortunately, despite the availability of efficient treatments, we have observed an increase in people infected with malaria since 2015 (from 211 million in 2015 to 229 million in 2019). This trend could partially be due to the development of resistance to all the current drugs. Therefore, there is an urgent need for new alternatives. We have, thus, selected common natural scaffolds, polyhydroxybenzoic acids, and synthesized a library of derivatives to better understand the structure-activity relationships explaining their antiplasmodial effect. Only gallic acid derivatives showed a noticeable potential for further developments. Indeed, they showed a selective inhibitory effect on Plasmodium (IC50 ~20 µM, SI > 5) often associated with interesting water solubility. Moreover, this has confirmed the critical importance of free phenolic functions (pyrogallol moiety) for the antimalarial effect. Methyl 4-benzoxy-3,5-dihydroxybenzoate (39) has, for the first time, been recognized as a potential lead for future research because of its marked inhibitory activity against Plasmodium falciparum and its significant hydrosolubility (3.72 mM).
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Affiliation(s)
- Gilles Degotte
- Department of Pharmacy, Laboratory of Medicinal Chemistry, CIRM, University of Liège, Liège, Belgium.,Department of Pharmacy, Laboratory of Pharmacognosy, CIRM, University of Liège, Liège, Belgium
| | - Bernard Pirotte
- Department of Pharmacy, Laboratory of Medicinal Chemistry, CIRM, University of Liège, Liège, Belgium
| | - Michel Frédérich
- Department of Pharmacy, Laboratory of Pharmacognosy, CIRM, University of Liège, Liège, Belgium
| | - Pierre Francotte
- Department of Pharmacy, Laboratory of Medicinal Chemistry, CIRM, University of Liège, Liège, Belgium
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24
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Bokosi FRB, Beteck RM, Laming D, Hoppe HC, Tshiwawa T, Khanye SD. Synthesis of 2-(N-cyclicamino)quinoline combined with methyl (E)-3-(2/3/4-aminophenyl)acrylates as potential antiparasitic agents. Arch Pharm (Weinheim) 2021; 354:e2000331. [PMID: 33710656 DOI: 10.1002/ardp.202000331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/12/2021] [Accepted: 02/16/2021] [Indexed: 01/15/2023]
Abstract
A rationally designed series of 2-(N-cyclicamino)quinolines coupled with methyl (E)-3-(2/3/4-aminophenyl)acrylates was synthesized and subjected to in vitro screening bioassays for potential antiplasmodial and antitrypanosomal activities against a chloroquine-sensitive (3D7) strain of Plasmodium falciparum and nagana Trypanosoma brucei brucei 427, respectively. Substituent effects on activity were evaluated; meta-acrylate 24 and the ortho-acrylate 29 exhibited the highest antiplasmodial (IC50 = 1.4 µM) and antitrypanosomal (IC50 = 10.4 µM) activities, respectively. The activity against HeLa cells showed that the synthesized analogs are not cytotoxic at the maximum tested concentration. The ADME (absorption, distribution, metabolism, and excretion) drug-like properties of the synthesized compounds were predicted through the SwissADME software.
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Affiliation(s)
- Fostino R B Bokosi
- Department of Chemistry, Faculty of Science, Rhodes University, Makhanda, South Africa
| | - Richard M Beteck
- Department of Chemistry, Faculty of Science, Rhodes University, Makhanda, South Africa.,Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa
| | - Dustin Laming
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda, South Africa
| | - Heinrich C Hoppe
- Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda, South Africa.,Department of Biochemistry and Microbiology, Faculty of Science, Rhodes University, Makhanda, South Africa
| | - Tendamudzimu Tshiwawa
- Department of Chemistry, Faculty of Science, Rhodes University, Makhanda, South Africa
| | - Setshaba D Khanye
- Department of Chemistry, Faculty of Science, Rhodes University, Makhanda, South Africa.,Centre for Chemico- and Biomedicinal Research, Rhodes University, Makhanda, South Africa.,Division of Pharmaceutical Chemistry, Faculty of Pharmacy, Rhodes University, Makhanda, South Africa
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25
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Alebachew Y, Bisrat D, Tadesse S, Asres K. In vivo anti-malarial activity of the hydroalcoholic extract of rhizomes of Kniphofia foliosa and its constituents. Malar J 2021; 20:3. [PMID: 33386079 PMCID: PMC7777528 DOI: 10.1186/s12936-020-03552-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 12/12/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Kniphofia foliosa is a flamboyant robust perennial herb which has dense clumps and tick upright rhizomes with leaves at the base. In Ethiopia, it has several vernacular names including Abelbila, Ashenda, Amelmela, Yeznjero Ageda, Shemetmetie and Yezinjero Ageda. The plant is endemic to Ethiopian highlands, where its rhizomes are traditionally used for the treatment of malaria, abdominal cramps and wound healing. In the present study, the 80% methanol extract of K. foliosa rhizomes and its constituents are tested against Plasmodium berghei in mice. METHODS Isolation was carried out using column and preparative thin layer chromatography (PTLC). The chemical structures of the compounds were elucidated by spectroscopic methods (ESI-MS, 1D and 2D-NMR). Peters' 4-day suppressive test against P. berghei in mice was utilized for in vivo anti-malarial evaluation of the test substances. RESULTS Two compounds, namely knipholone and dianellin were isolated from the 80% methanolic extract of K. foliosa rhizomes, and characterized. The hydroalcoholic extract (400 mg/kg) and knipholone (200 mg/kg) showed the highest activity with chemosuppression values of 61.52 and 60.16%, respectively. From the dose-response plot, the median effective (ED50) doses of knipholone and dianellin were determined to be 81.25 and 92.31 mg/kg, respectively. Molecular docking study revealed that knipholone had a strong binding affinity to Plasmodium falciparum l-lactate dehydrogenase (pfLDH) target. CONCLUSION Results of the current study support the traditional use of the plant for the treatment of malaria.
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Affiliation(s)
- Yonatan Alebachew
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Daniel Bisrat
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Solomon Tadesse
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Kaleab Asres
- Department of Pharmaceutical Chemistry and Pharmacognosy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.
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26
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Evaluation of the In Vitro Cytotoxic Activity of Caffeic Acid Derivatives and Liposomal Formulation against Pancreatic Cancer Cell Lines. MATERIALS 2020; 13:ma13245813. [PMID: 33352809 PMCID: PMC7766656 DOI: 10.3390/ma13245813] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/13/2020] [Accepted: 12/16/2020] [Indexed: 02/07/2023]
Abstract
Pancreatic cancer belongs to the most aggressive group of cancers, with very poor prognosis. Therefore, there is an important need to find more potent drugs that could deliver an improved therapeutic approach. In the current study we searched for selective and effective caffeic acid derivatives. For this purpose, we analyzed twelve compounds and evaluated their in vitro cytotoxic activity against two human pancreatic cancer cell lines, along with a control, normal fibroblast cell line, by the classic MTT assay. Six out of twelve tested caffeic acid derivatives showed a desirable effect. To improve the therapeutic efficacy of such active compounds, we developed a formulation where caffeic acid derivative (7) was encapsulated into liposomes composed of soybean phosphatidylcholine and DSPE-PEG2000. Subsequently, we analyzed the properties of this formulation in terms of basic physical parameters (such as size, zeta potential, stability at 4 °C and morphology), hemolytic and cytotoxic activity and cellular uptake. Overall, the liposomal formulation was found to be stable, non-hemolytic and had activity against pancreatic cancer cells (IC50 19.44 µM and 24.3 µM, towards AsPC1 and BxPC3 cells, respectively) with less toxicity against normal fibroblasts. This could represent a promising alternative to currently available treatment options.
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27
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Jantas D, Chwastek J, Malarz J, Stojakowska A, Lasoń W. Neuroprotective Effects of Methyl Caffeate against Hydrogen Peroxide-Induced Cell Damage: Involvement of Caspase 3 and Cathepsin D Inhibition. Biomolecules 2020; 10:E1530. [PMID: 33182454 PMCID: PMC7696984 DOI: 10.3390/biom10111530] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/06/2020] [Accepted: 11/08/2020] [Indexed: 12/23/2022] Open
Abstract
Finding effective neuroprotective strategies to combat various neurodegenerative disorders still remain a clinically unmet need. Methyl caffeate (MC), a naturally occurring ester of caffeic acid, possesses antioxidant and anti-inflammatory activities; however, its role in neuroprotection is less investigated. In order to better characterize neuroprotective properties of MC, we tested its effectiveness in various models of neuronal cell injury in human neuroblastoma SH-SY5Y cells and in mouse primary neuronal cell cultures. MC at micromolar concentrations attenuated neuronal cell damage induced by hydrogen peroxide (H2O2) in undifferentiated and neuronal differentiated SH-SY5Y cells as well as in primary cortical neurons. This effect was associated with inhibition of both caspase-3 and cathepsin D but without involvement of the PI3-K/Akt pathway. MC was neuroprotective when given before and during but not after the induction of cell damage by H2O2. Moreover, MC was protective against 6-OHDA-evoked neurotoxicity in neuronal differentiated SH-SY5Y cells via inhibition of necrotic and apoptotic processes. On the other hand, MC was ineffective in models of excitotoxicity (induced by glutamate or oxygen-glucose deprivation) and even moderately augmented cytotoxic effects of the classical apoptotic inducer, staurosporine. Finally, in undifferentiated neuroblastoma cells MC at higher concentrations (above 50 microM) induced cell death and when combined with the chemotherapeutic agent, doxorubicin, it increased the cell damaging effects of the latter compound. Thus, neuroprotective properties of MC appear to be limited to certain models of neurotoxicity and depend on its concentrations and time of administration.
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Affiliation(s)
- Danuta Jantas
- Department of Experimental Neuroendocrinology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland; (J.C.); (W.L.)
| | - Jakub Chwastek
- Department of Experimental Neuroendocrinology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland; (J.C.); (W.L.)
| | - Janusz Malarz
- Department of Phytochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland; (J.M.); (A.S.)
| | - Anna Stojakowska
- Department of Phytochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland; (J.M.); (A.S.)
| | - Władysław Lasoń
- Department of Experimental Neuroendocrinology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland; (J.C.); (W.L.)
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28
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Lopes SP, Yepes LM, Pérez-Castillo Y, Robledo SM, de Sousa DP. Alkyl and Aryl Derivatives Based on p-Coumaric Acid Modification and Inhibitory Action against Leishmania braziliensis and Plasmodium falciparum. Molecules 2020; 25:molecules25143178. [PMID: 32664596 PMCID: PMC7397144 DOI: 10.3390/molecules25143178] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 02/07/2023] Open
Abstract
In low-income populations, neglected diseases are the principal cause of mortality. Of these, leishmaniasis and malaria, being parasitic, protozoan infections, affect millions of people worldwide and are creating a public health problem. The present work evaluates the leishmanicidal and antiplasmodial action of a series of twelve p-coumaric acid derivatives. Of the tested derivatives, eight presented antiparasitic activities 1–3, 8–12. The hexyl p-coumarate derivative (9) (4.14 ± 0.55 μg/mL; selectivity index (SI) = 2.72) showed the highest leishmanicidal potency against the Leishmania braziliensis amastigote form. The results of the molecular docking study suggest that this compound inhibits aldehyde dehydrogenase (ALDH), mitogen-activated kinase protein (MPK4), and DNA topoisomerase 2 (TOP2), all of which are key enzymes in the development of Leishmania braziliensis. The data indicate that these enzymes interact via Van der Waals bonds, hydrophobic interactions, and hydrogen bonds with phenolic and aliphatic parts of this same compound. Of the other compounds analyzed, methyl p-coumarate (64.59 ± 2.89 μg/mL; IS = 0.1) demonstrated bioactivity against Plasmodium falciparum. The study reveals that esters presenting a p-coumarate substructure are promising for use in synthesis of derivatives with good antiparasitic profiles.
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Affiliation(s)
- Susiany P. Lopes
- PostGraduation Program in Technological Development and Innovation in Medicines, Federal University of Paraíba, João Pessoa CEP 58051-970, Brazil;
| | - Lina M. Yepes
- PECET-Facultad de Medicina, Universidad de Antioquia, Medellín Calle 70 # 52-21, Colombia; (L.M.Y.); (S.M.R.)
| | | | - Sara M. Robledo
- PECET-Facultad de Medicina, Universidad de Antioquia, Medellín Calle 70 # 52-21, Colombia; (L.M.Y.); (S.M.R.)
| | - Damião P. de Sousa
- PostGraduation Program in Technological Development and Innovation in Medicines, Federal University of Paraíba, João Pessoa CEP 58051-970, Brazil;
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa CEP 58051-970, Brazil
- Correspondence:
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Ezenyi IC, Verma V, Singh S, Okhale SE, Adzu B. Ethnopharmacology-aided antiplasmodial evaluation of six selected plants used for malaria treatment in Nigeria. JOURNAL OF ETHNOPHARMACOLOGY 2020; 254:112694. [PMID: 32092499 DOI: 10.1016/j.jep.2020.112694] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sub - Saharan Africa has a high malaria burden and Nigeria accounts for majority of malaria cases worldwide. The aim of this study was to evaluate selected plants extracts used against malaria in Nigeria for antiplasmodial activity. MATERIALS AND METHODS An ethnomedicinal based - approach by literature survey was used to identify plants used in the study. The parts of the plant used were collected and extracted with 70% v/v ethanol; a portion of each extract was used to prepare successive solvent and residual fractions. Chloroquine-sensitive (3D7) P. falciparum strain and human embryonic kidney cells (HEK293) were used for antiplasmodial and cytotoxicity screening respectively. Hemolysis assay was also carried out on red blood cells (RBCs). Test for in vivo efficacy of an active extract was conducted in a mouse model of established P. berghei ANKA-infection. RESULTS A total of six plants; Andropogon schirensis, Celtis durandii, Chasmanthera dependens, Daniellia ogea, Icacina trichantha and Triumfetta cordifolia were selected and screened. Triumfetta cordifolia leaf extract was observed to display moderate in vitro antiplasmodial activity (IC50 = 48.09 μg/ml) and was non-toxic to HEK293 cells and erythrocytes. At a dose of 400 mg/kg, T. cordifolia significantly (p<0.001) suppressed parasitemia, significantly (p<0.001) inhibited RBC depletion and prolonged survival in infected mice. CONCLUSIONS T. cordifolia ethanol extract possesses antiplasmodial efficacy and this is the first report of its kind on the plant. It is a potential candidate for further studies to identify its mechanism of action.
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Affiliation(s)
- I C Ezenyi
- Department of Pharmacology and Toxicology, National Institute for Pharmaceutical Research and Development (NIPRD), Idu, Abuja, Nigeria.
| | - V Verma
- Special Center for Molecular Medicine, Jawaharlal Nehru University, Delhi, 110067, India
| | - S Singh
- Special Center for Molecular Medicine, Jawaharlal Nehru University, Delhi, 110067, India.
| | - S E Okhale
- Department of Medicinal Plant Research and Traditional Medicine, National Institute for Pharmaceutical Research and Development (NIPRD), Idu, Abuja, Nigeria
| | - B Adzu
- Department of Pharmacology and Toxicology, National Institute for Pharmaceutical Research and Development (NIPRD), Idu, Abuja, Nigeria
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30
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Bernal FA, Kaiser M, Wünsch B, Schmidt TJ. Structure-Activity Relationships of Cinnamate Ester Analogues as Potent Antiprotozoal Agents. ChemMedChem 2020; 15:68-78. [PMID: 31697437 PMCID: PMC7003929 DOI: 10.1002/cmdc.201900544] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/24/2019] [Indexed: 01/10/2023]
Abstract
Protozoal infections are still a global health problem, threatening the lives of millions of people around the world, mainly in impoverished tropical and sub-tropical regions. Thus, in view of the lack of efficient therapies and increasing resistances against existing drugs, this study describes the antiprotozoal potential of synthetic cinnamate ester analogues and their structure-activity relationships. In general, Leishmania donovani and Trypanosoma brucei were quite susceptible to the compounds in a structure-dependent manner. Detailed analysis revealed a key role of the substitution pattern on the aromatic ring and a marked effect of the side chain on the activity against these two parasites. The high antileishmanial potency and remarkable selectivity of the nitro-aromatic derivatives suggested them as promising candidates for further studies. On the other hand, the high in vitro potency of catechol-type compounds against T. brucei could not be extrapolated to an in vivo mouse model.
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Affiliation(s)
- Freddy A. Bernal
- Institut für Pharmazeutische Biologie und Phytochemie (IPBP)Westfälische Wilhelms-Universität MünsterCorrensstraße 4848149MünsterGermany
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute (Swiss TPH)Socinstr. 57Basel4051Switzerland
- University of BaselPetersplatz 1Basel4003Switzerland
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische ChemieWestfälische Wilhelms-Universität MünsterCorrensstraße 488149MünsterGermany
| | - Thomas J. Schmidt
- Institut für Pharmazeutische Biologie und Phytochemie (IPBP)Westfälische Wilhelms-Universität MünsterCorrensstraße 4848149MünsterGermany
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Wang X, Chang X, Luo X, Su M, Xu R, Chen J, Ding Y, Shi Y. An Integrated Approach to Characterize Intestinal Metabolites of Four Phenylethanoid Glycosides and Intestinal Microbe-Mediated Antioxidant Activity Evaluation In Vitro Using UHPLC-Q-Exactive High-Resolution Mass Spectrometry and a 1,1-Diphenyl-2-picrylhydrazyl-Based Assay. Front Pharmacol 2019; 10:826. [PMID: 31402862 PMCID: PMC6669795 DOI: 10.3389/fphar.2019.00826] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 06/26/2019] [Indexed: 12/19/2022] Open
Abstract
Intestinal bacteria have a significant role in metabolism and the pharmacologic actions of traditional Chinese medicine active ingredients. Phenylethanoid glycosides (PhGs), as typical phenolic natural products, possess wide bioactivities, but low oral bioavailability. The aim of this work was to elucidate the metabolic mechanism underlying PhGs in the intestinal tract and screen for more active metabolites. In this study, a rapid and reliable method using an effective post-acquisition approach based on advanced ultra-high-performance liquid chromatography (UHPLC) coupled with hybrid Quadrupole-Orbitrap high resolution mass spectrometry (Q-Exactive-HRMS) provided full MS and HCD MS2 data. Thermo Scientific™ Compound Discoverer™ software with a Fragment Ion Search (FISh) function in one single workflow was developed to investigate the intestinal microbial metabolism of four typical PhGs. Furthermore, antioxidant activity evaluation of PhGs and their related metabolites was simultaneously carried out in combination with a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay to understand how intestinal microbiota transformations modulate biological activity and explore structure–activity relationships (SARs). As a result, 26 metabolites of poliumoside, 42 metabolites of echinacoside, 42 metabolites of tubuloside, and 46 metabolites of 2′-acetylacteoside were identified. Degradation, reduction, hydroxylation, acetylation, hydration, methylation, and sulfate conjugation were the major metabolic pathways of PhGs. Furthermore, the degraded metabolites with better bioavailability had potent antioxidant activity that could be attributed to the phenolic hydroxyl groups. These findings may enhance our understanding of the metabolism, pharmacologic actions, and real active forms of PhGs.
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Affiliation(s)
- Xiaoming Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiaoyan Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiaomei Luo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Meifeng Su
- Beijing University of Chinese Medicine, Beijing, China
| | - Rong Xu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Jun Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yi Ding
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Yue Shi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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Prommaban A, Utama‐ang N, Chaikitwattana A, Uthaipibull C, Srichairatanakool S. Linoleic acid‐rich guava seed oil: Safety and bioactivity. Phytother Res 2019; 33:2749-2764. [DOI: 10.1002/ptr.6449] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 06/04/2019] [Accepted: 07/01/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Adchara Prommaban
- Department of Biochemistry, Faculty of MedicineChiang Mai University Chiang Mai Thailand
| | - Niramon Utama‐ang
- Department of Product Development Technology, Faculty of Agro‐ScienceUniversity Chiang Mai Thailand
| | | | - Chairat Uthaipibull
- National Science and Technology Development AgencyProtein‐Ligand Engineering and Molecular Biology Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC) Thailand Science Park Pathum Thani Thailand
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