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Suaza-Gaviria V, Mesa-Vanegas AM, Ocampo-Jiménez O, Monsalve-Fonnegra ZI. Antioxidant Activity and Phytopathogenic Control of Extracts and Fraction from Struthanthus calophyllus A.C.Sm. (Loranthaceae). Chem Biodivers 2023; 20:e202200830. [PMID: 36650106 DOI: 10.1002/cbdv.202200830] [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: 09/09/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
Phytopathogenic microorganisms cause oxidative stress in host plants, thus affecting agricultural crops. Such stress could be controlled by antioxidant compounds from parasitic plants, given their antioxidant power. This article reports an evaluation of Struthanthus calophyllus antimicrobial activity and antioxidant mechanism by testing different polarity extracts. Antimicrobial activity was evaluated against phytopathogens bacteria (e. g., Erwinia, Pectobacterium, Xanthomonas) using the agar diffusion method. Pectobacterium and Xanthomonas presented growth inhibition zones similar to streptomycin control. Antioxidant activity was determined by measuring total phenol content, DPPH⋅, and ABTS⋅+ radicals-scavenging inhibition percentage (IP). Most polar extracts presented 76,9-95,9 % IP, which correlates with its phenolic content. Besides, Nuclear Magnetic Resonance in a V14-1 sub-fraction from stem ethanolic extract, chose one for highest yield percentage, highest metabolites presence, and antimicrobial activity, showed triterpenic compounds mixture (α-amyrin, β-amyrin and 24-methylenecycloartanol). Findings in this study are among the first reports for S. calophyllus, even the chemical characterization, that confirm its strong antioxidant and antibacterial activities. Further molecular composition research about parasitic plants could show how unknown compounds may combat pathogenic microorganisms.
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Affiliation(s)
- Vanessa Suaza-Gaviria
- AgroBiotecnología Research Group, Instituto de Biología, Universidad de Antioquia, P.O. Box: 1226, Medellín, Colombia
| | - Ana María Mesa-Vanegas
- AgroBiotecnología Research Group, Instituto de Biología, Universidad de Antioquia, P.O. Box: 1226, Medellín, Colombia
| | - Omar Ocampo-Jiménez
- AgroBiotecnología Research Group, Instituto de Biología, Universidad de Antioquia, P.O. Box: 1226, Medellín, Colombia
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Selective oxidation of isoeugenol to licarin A using CuFe2O4 catalysts under mild conditions. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02575-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Amphipterygium adstringens (Schltdl.) Schiede ex Standl (Anacardiaceae): An Endemic Plant with Relevant Pharmacological Properties. PLANTS 2022; 11:plants11131766. [PMID: 35807718 PMCID: PMC9268796 DOI: 10.3390/plants11131766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/29/2022] [Accepted: 06/29/2022] [Indexed: 11/17/2022]
Abstract
Diseases, such as cancer, peptic ulcers, and diabetes, as well as those caused by drug-resistant infectious agents are examples of some of the world’s major public health problems. Amphipterygium adstringens (Schltdl.) Schiede ex Standl is an endemic tree to Mexico. Its stem bark has been used medicinally since pre-Hispanic times, but in recent decades it has been scientifically proven that it has properties that help counteract some diseases; extracts with organic solvents of the plant are outstanding for their anticancer, gastroprotective, and antimicrobial properties; terpenes and long-chain phenols have been identified as the main active compounds. Currently, overharvesting is causing a sharp reduction in natural populations due to an increase in demand for the stem bark by people seeking to improve their health and by national and transnational companies seeking to market it. Because of the growing interest of the world population and the scientific community, we reviewed recent studies on the bioactive properties of A. adstringens. Through the orderly and critical compendium of the current knowledge of A. adstringens, we provide a reference for future studies aimed at the rational use and protection of this valuable endemic natural resource.
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Lerma-Herrera MA, Beiza-Granados L, Ochoa-Zarzosa A, López-Meza JE, Navarro-Santos P, Herrera-Bucio R, Aviña-Verduzco J, García-Gutiérrez HA. Biological Activities of Organic Extracts of the Genus Aristolochia: A Review from 2005 to 2021. Molecules 2022; 27:molecules27123937. [PMID: 35745061 PMCID: PMC9230106 DOI: 10.3390/molecules27123937] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/11/2022] [Accepted: 06/12/2022] [Indexed: 02/05/2023] Open
Abstract
Different ethnomedicinal studies have investigated the relationship between various phytochemicals as well as organic extracts and their bioactive aspects. Studies on biological effects are attributed to secondary metabolites such as alkaloids, phenolic compounds, and terpenes. Since there have been no reviews in the literature on the traditional, phytochemical, and ethnomedicinal uses of the genus Aristolochia so far, this article systematically reviews 141 published studies that analyze the associations between secondary metabolites present in organic extracts and their beneficial effects. Most studies found associations between individual secondary metabolites and beneficial effects such as anticancer activity, antibacterial, antioxidant activity, snake anti-venom and anti-inflammatory activity. The aim of this review was to analyze studies carried out in the period 2005-2021 to update the existing knowledge on different species of the genus Aristolochia for ethnomedicinal uses, as well as pharmacological aspects and therapeutic uses.
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Affiliation(s)
- Martín A. Lerma-Herrera
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (L.B.-G.); (R.H.-B.); (J.A.-V.)
- Correspondence: (M.A.L.-H.); (H.A.G.-G.)
| | - Lidia Beiza-Granados
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (L.B.-G.); (R.H.-B.); (J.A.-V.)
| | - Alejandra Ochoa-Zarzosa
- Centro Multidisciplinario de Estudios en Biotecnología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo, Tarímbaro 58893, Michoacán, Mexico; (A.O.-Z.); (J.E.L.-M.)
| | - Joel E. López-Meza
- Centro Multidisciplinario de Estudios en Biotecnología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Michoacana de San Nicolás de Hidalgo, Tarímbaro 58893, Michoacán, Mexico; (A.O.-Z.); (J.E.L.-M.)
| | - Pedro Navarro-Santos
- CONACYT—Universidad Michoacana de San Nicolás de Hidalgo, Edificio B-1, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico;
| | - Rafael Herrera-Bucio
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (L.B.-G.); (R.H.-B.); (J.A.-V.)
| | - Judit Aviña-Verduzco
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (L.B.-G.); (R.H.-B.); (J.A.-V.)
| | - Hugo A. García-Gutiérrez
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Ciudad Universitaria, Morelia 58030, Michoacán, Mexico; (L.B.-G.); (R.H.-B.); (J.A.-V.)
- Correspondence: (M.A.L.-H.); (H.A.G.-G.)
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del Moral-Morales A, Salgado-Albarrán M, Ortiz-Gutiérrez E, Pérez-Hernández G, Soto-Reyes E. Transcriptomic and Drug Discovery Analyses Reveal Natural Compounds Targeting the KDM4 Subfamily as Promising Adjuvant Treatments in Cancer. Front Genet 2022; 13:860924. [PMID: 35480330 PMCID: PMC9036480 DOI: 10.3389/fgene.2022.860924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
KDM4 proteins are a subfamily of histone demethylases that target the trimethylation of lysines 9 and 36 of histone H3, which are associated with transcriptional repression and elongation respectively. Their deregulation in cancer may lead to chromatin structure alteration and transcriptional defects that could promote malignancy. Despite that KDM4 proteins are promising drug targets in cancer therapy, only a few drugs have been described as inhibitors of these enzymes, while studies on natural compounds as possible inhibitors are still needed. Natural compounds are a major source of biologically active substances and many are known to target epigenetic processes such as DNA methylation and histone deacetylation, making them a rich source for the discovery of new histone demethylase inhibitors. Here, using transcriptomic analyses we determined that the KDM4 family is deregulated and associated with a poor prognosis in multiple neoplastic tissues. Also, by molecular docking and molecular dynamics approaches, we screened the COCONUT database to search for inhibitors of natural origin compared to FDA-approved drugs and DrugBank databases. We found that molecules from natural products presented the best scores in the FRED docking analysis. Molecules with sugars, aromatic rings, and the presence of OH or O- groups favor the interaction with the active site of KDM4 subfamily proteins. Finally, we integrated a protein-protein interaction network to correlate data from transcriptomic analysis and docking screenings to propose FDA-approved drugs that could be used as multitarget therapies or in combination with the potential natural inhibitors of KDM4 enzymes. This study highlights the relevance of the KDM4 family in cancer and proposes natural compounds that could be used as potential therapies.
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Affiliation(s)
- Aylin del Moral-Morales
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Mexico City, Mexico
| | - Marisol Salgado-Albarrán
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Mexico City, Mexico
- Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | - Elizabeth Ortiz-Gutiérrez
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Mexico City, Mexico
| | - Gerardo Pérez-Hernández
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Mexico City, Mexico
- *Correspondence: Ernesto Soto-Reyes, ; Gerardo Pérez-Hernández,
| | - Ernesto Soto-Reyes
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana-Cuajimalpa (UAM-C), Mexico City, Mexico
- *Correspondence: Ernesto Soto-Reyes, ; Gerardo Pérez-Hernández,
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Guzmán-Gutiérrez SL, Silva-Miranda M, Krengel F, Huerta-Salazar E, León-Santiago M, Díaz-Cantón JK, Espitia Pinzón C, Reyes-Chilpa R. Antimycobacterial Activity of Alkaloids and Extracts from Tabernaemontana alba and T. arborea. PLANTA MEDICA 2022; 88:53-61. [PMID: 32392600 DOI: 10.1055/a-1157-1732] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tuberculosis is the main cause of death from a single infectious agent. Globally, according to the World Health Organization, in 2018, there were an estimated 1.2 million tuberculosis deaths. Moreover, there is a continuous appearance of drug-resistant strains. Thus, development of new antituberculosis medicines should receive high priority. Plant-derived natural products are promising candidates for this purpose. We therefore screened alkaloid extracts obtained from the root and stem barks of the Mexican Apocynaceae species Tabernaemontana alba and Tabernaemontana arborea, as well as the pure alkaloids ibogaine, voacangine, and voacamine, tested for activity against Mycobacterium tuberculosis H37Rv and cytotoxicity to mammalian Vero cells using the resazurin microtiter and the MTT assays, respectively. The extracts were analyzed by GC-MS and HPLC-UV. T. arborea root bark alkaloid extract showed the highest activity against M. tuberculosis (MIC100 = 7.8 µg/mL) of the four extracts tested. HPLC suggested that voacangine and voacamine were the major components. The latter was isolated by column chromatography, and its chemical structure was elucidated by 1H and 13C NMR, and MS. Unambiguous assignation was performed by HSQC, HMBC, and NOESY experiments. Voacamine is a dimeric bis-indole-type alkaloid and is 15 times more potent than the monomeric ibogan-type alkaloids ibogaine and voacangine (MIC100 = 15.6, 250.0, and 250.0 µg/mL, respectively). However, all of these compounds showed cytotoxicity to Vero cells, with a poor selectivity index of 1.00, 0.16, and 1.42, respectively. This is the first report of voacamine activity against M. tuberculosis.
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Affiliation(s)
- Silvia Laura Guzmán-Gutiérrez
- CONACyT - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Mayra Silva-Miranda
- CONACyT - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Felix Krengel
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México, México
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | - Mayra León-Santiago
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Jessica Karina Díaz-Cantón
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México, México
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Clara Espitia Pinzón
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Ricardo Reyes-Chilpa
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México, México
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Traditional Medicinal Plants as a Source of Antituberculosis Drugs: A System Review. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9910365. [PMID: 34541000 PMCID: PMC8448615 DOI: 10.1155/2021/9910365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 08/09/2021] [Indexed: 12/02/2022]
Abstract
Medicinal plants are the chief components in the different oriental formulations in different traditional medical systems worldwide. As a thriving source of medicine, the medicinal plants with antituberculosis (TB) properties inspire the pharmacists to develop new drugs based on their active components or semimetabolites. In the present review, the anti-TB medicinal plants were screened from the scientific literatures, based on the botanical classification and the anti-TB activity. The obtained anti-TB medicinal plants were categorized into three different categories, viz., 159 plants critically examined with a total 335 isolated compounds, 131 plants with their crude extracts showing anti-TB activity, and 27 plants in literature with the prescribed formula by the traditional healers. Our systemic analysis on the medicinal plants can assist the discovery of novel and more efficacious anti-TB drugs.
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Turner T, Ruiz G, Gerstel J, Langland J. Characterization of the antibacterial activity from ethanolic extracts of the botanical, Larrea tridentata. BMC Complement Med Ther 2021; 21:177. [PMID: 34172064 PMCID: PMC8235861 DOI: 10.1186/s12906-021-03344-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 06/03/2021] [Indexed: 11/11/2022] Open
Abstract
Background β-lactam antibiotics are a class of broad-spectrum antibiotics consisting of all antibiotic agents that contain a β-lactam ring in their molecular structures. β-lactam antibiotics are only known to be isolated from fungi (e.g. Acremonium chrysogenum, Penicillium chrysogenum and Aspergillus nidulans) and bacteria (e.g. Streptomyces clavuligerus). We have shown that botanical extracts prepared from Larrea tridentata have strong antimicrobial activity against several bacteria, including members of Staphylococcus and Streptococcus genera. Methods Through resistance studies, inhibitor assays, and ELISA testing, we demonstrated L. tridentata extracts may contain a β-lactam type antibiotic activity. Results Based on the estimated β-lactam concentration within the extract, the antimicrobial activity of the L. tridentata extract was approximately 2000–8000-fold greater against Staphylococcus as compared to other β-lactams, penicillin or ampicillin. In the L. tridentata extract, this increased activity was found to be associated with the likely presence of a cofactor leading to increased potentiation of the β-lactam activity. This potentiation activity was also observed to enhance the activity of exogenously added natural penicillin antibiotics. Conclusions Although constituents were not isolated in this study, the results obtained strongly support the presence of β-lactam type antibiotic activity and antibiotic potentiation activity present in ethanolic extracts prepared from L. tridentata.
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Affiliation(s)
- Tiffany Turner
- Southwest College of Naturopathic Medicine, The Ric Scalzo Institute for Botanical Research, Tempe, AZ, 85282, USA
| | - Guillermo Ruiz
- Southwest College of Naturopathic Medicine, The Ric Scalzo Institute for Botanical Research, Tempe, AZ, 85282, USA
| | - Johanne Gerstel
- Southwest College of Naturopathic Medicine, The Ric Scalzo Institute for Botanical Research, Tempe, AZ, 85282, USA
| | - Jeffrey Langland
- Southwest College of Naturopathic Medicine, The Ric Scalzo Institute for Botanical Research, Tempe, AZ, 85282, USA. .,Arizona State University, Biodesign Institute, Tempe, AZ, 85287, USA.
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Morais TR, Conserva GAA, Varela MT, Costa-Silva TA, Thevenard F, Ponci V, Fortuna A, Falcão AC, Tempone AG, Fernandes JPS, Lago JHG. Improving the drug-likeness of inspiring natural products - evaluation of the antiparasitic activity against Trypanosoma cruzi through semi-synthetic and simplified analogues of licarin A. Sci Rep 2020; 10:5467. [PMID: 32214193 PMCID: PMC7096397 DOI: 10.1038/s41598-020-62352-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 02/20/2020] [Indexed: 01/05/2023] Open
Abstract
Neolignan licarin A (1) was isolated from leaves of Nectandra oppositifolia (Lauraceae) and displayed activity against trypomastigote forms of the etiologic agent of American trypanosomiasis, Trypanosoma cruzi. Aiming for the establishment of SAR, five different compounds (1a - 1e) were prepared and tested against T. cruzi. The 2-allyl derivative of licarin A (1d) exhibited higher activity against trypomastigotes of T. cruzi (IC50 = 5.0 μM and SI = 9.0), while its heterocyclic derivative 1e displayed IC50 of 10.5 μM and reduced toxicity against NCTC cells (SI > 19.0). However, these compounds presented limited oral bioavailability estimation (<85%, Papp <1.0 × 10-6 cm/s) in parallel artificial membrane permeability assays (PAMPA) due to excessive lipophilicity. Based on these results, different simplified structures of licarin A were designed: vanillin (2), vanillyl alcohol (3), isoeugenol (4), and eugenol (5), as well as its corresponding methyl (a), acetyl (b), O-allyl (c), and C-allyl (d) analogues. Vanillin (2) and its acetyl derivative (2b) displayed expressive activity against intracellular amastigotes of T. cruzi with IC50 values of 5.5 and 5.6 μM, respectively, and reduced toxicity against NCTC cells (CC50 > 200 μM). In addition, these simplified analogues showed a better permeability profile (Papp > 1.0 × 10-6 cm/s) on PAMPA models, resulting in improved drug-likeness. Vanillyl alcohol acetyl derivative (3b) and isoeugenol methyl derivative (4a) displayed activity against the extracellular forms of T. cruzi (trypomastigotes) with IC50 values of 5.1 and 8.8 μM respectively. Based on these results, compounds with higher selectivity index against extracellular forms of the parasite (1d, 1e, 3d, and 4a) were selected for a mechanism of action study. After a short incubation period (1 h) all compounds increased the reactive oxygen species (ROS) levels of trypomastigotes, suggesting cellular oxidative stress. The ATP levels were increased after two hours of incubation, possibly involving a high energy expenditure of the parasite to control the homeostasis. Except for compound 4a, all compounds induced hyperpolarization of mitochondrial membrane potential, demonstrating a mitochondrial imbalance. Considering the unique mitochondria apparatus of T. cruzi and the lethal alterations induced by structurally based on licarin A, these compounds are interesting hits for future drug discovery studies in Chagas disease.
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Affiliation(s)
- Thiago R Morais
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil
| | - Geanne A Alves Conserva
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Marina T Varela
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil
| | - Thais A Costa-Silva
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Fernanda Thevenard
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil
| | - Vitor Ponci
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil
| | - Ana Fortuna
- Laboratory of Pharmacology, Faculty of Pharmacy of University of Coimbra, 3000-370, Coimbra, Portugal
- CIBIT/ICNAS - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, 3000-370, Coimbra, Portugal
| | - Amílcar C Falcão
- Laboratory of Pharmacology, Faculty of Pharmacy of University of Coimbra, 3000-370, Coimbra, Portugal
- CIBIT/ICNAS - Coimbra Institute for Biomedical Imaging and Translational Research, University of Coimbra, 3000-370, Coimbra, Portugal
| | - Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil
| | - João Paulo S Fernandes
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Universidade Federal de São Paulo, São Paulo, 09972-270, Brazil.
| | - João Henrique G Lago
- Center of Natural Sciences and Humanities, Universidade Federal do ABC, São Paulo, 09210-580, Brazil.
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Silva FFAD, Fernandes CC, Santiago MB, Martins CHG, Vieira TM, Crotti AEM, Miranda MLD. Chemical composition and in vitro antibacterial activity of essential oils from Murraya paniculata (L.) Jack (Rutaceae) ripe and unripe fruits against bacterial genera Mycobacterium and Streptococcus. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902019000418371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Sieniawska E, Maciejewska-Turska M, Świątek Ł, Xiao J. Plant-based Food Products for Antimycobacterial Therapy. EFOOD 2020. [DOI: 10.2991/efood.k.200418.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Kumar S, Sharma C, Kaushik SR, Kulshreshtha A, Chaturvedi S, Nanda RK, Bhaskar A, Chattopadhyay D, Das G, Dwivedi VP. The phytochemical bergenin as an adjunct immunotherapy for tuberculosis in mice. J Biol Chem 2019; 294:8555-8563. [PMID: 30975902 PMCID: PMC6544861 DOI: 10.1074/jbc.ra119.008005] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/20/2019] [Indexed: 12/12/2022] Open
Abstract
The widespread availability and use of modern synthetic therapeutic agents have led to a massive decline in ethnomedical therapies. However, these synthetic agents often possess toxicity leading to various adverse effects. For instance, anti-tubercular treatment (ATT) is toxic, lengthy, and severely impairs host immunity, resulting in posttreatment vulnerability to reinfection and reactivation of tuberculosis (TB). Incomplete ATT enhances the risk for the generation of multidrug- or extensively drug-resistant (MDR or XDR, respectively) variants of Mycobacterium tuberculosis (M. tb), the TB-causing microbe. Therefore, a new therapeutic approach that minimizes these risks is urgently needed to combat this deadly disease and prevent future TB epidemics. Previously, we have shown that the phytochemical bergenin induces T helper 1 (Th1)- and Th17 cell-based protective immune responses and potently inhibits mycobacterial growth in a murine model of M. tb infection, suggesting bergenin as a potential adjunct agent to TB therapy. Here, we combined ATT therapy with bergenin and found that this combination reduces immune impairment and the length of treatment in mice. We observed that co-treatment with the anti-TB drug isoniazid and bergenin produces additive effects and significantly reduces bacterial loads compared with isoniazid treatment alone. The bergenin co-treatment also reduced isoniazid-induced immune impairment; promoted long-lasting, antigen-specific central memory T cell responses; and acted as a self-propelled vaccine. Of note, bergenin treatment significantly reduced the bacterial burden of a multidrug-resistant TB strain. These observations suggest that bergenin is a potent immunomodulatory agent that could be further explored as a potential adjunct to TB therapy.
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Affiliation(s)
- Santosh Kumar
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110 067, India
| | - Chetan Sharma
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110 067, India
| | - Sandeep Rai Kaushik
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110 067, India
| | | | - Shivam Chaturvedi
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110 067, India
| | - Ranjan Kumar Nanda
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110 067, India
| | - Ashima Bhaskar
- Signal Transduction Laboratory-1, National Institute of Immunology, New Delhi 110 067, India
| | | | - Gobardhan Das
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110 067, India.
| | - Ved Prakash Dwivedi
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110 067, India.
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Dwivedi VP, Bhattacharya D, Yadav V, Singh DK, Kumar S, Singh M, Ojha D, Ranganathan A, Van Kaer L, Chattopadhyay D, Das G. The Phytochemical Bergenin Enhances T Helper 1 Responses and Anti-Mycobacterial Immunity by Activating the MAP Kinase Pathway in Macrophages. Front Cell Infect Microbiol 2017; 7:149. [PMID: 28507951 PMCID: PMC5410567 DOI: 10.3389/fcimb.2017.00149] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 04/10/2017] [Indexed: 12/20/2022] Open
Abstract
Tuberculosis (TB) remains one of the greatest health concerns worldwide, which has hindered socioeconomic development in certain parts of the world for many centuries. Although current TB therapy, "Directly Observed Treatment Short-course," is effective, it is associated with unwanted side effects and the risk for the generation of drug-resistant organisms. The majority of infected individuals successfully confine the mycobacterial organisms and remain asymptotic unless immune responses are perturbed. Thus, host immunity can protect against TB and immunomodulation is therefore an attractive therapeutic option. Previous studies have shown that TNF-α and Nitric Oxide (NO) in conjunction with IFN-γ-producing T helper 1 (Th1) cells play critical roles in host protection against TB. Here, we show that bergenin, a phytochemical isolated from tender leaves of Shorea robusta, activates the MAP kinase and ERK pathways and induces TNF-α, NO and IL-12 production in infected macrophages. We further show that bergenin induces Th1 immune responses and potently inhibits bacillary growth in a murine model of Mycobacterium tuberculosis infection. These findings identify bergenin as a potential adjunct to TB therapy.
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Affiliation(s)
- Ved P. Dwivedi
- Immunology Group, International Centre for Genetic Engineering and BiotechnologyNew Delhi, India
| | | | - Vinod Yadav
- Department of Microbiology, Central University of HaryanaMahendergarh, India
| | - Dhiraj K. Singh
- Immunology Group, International Centre for Genetic Engineering and BiotechnologyNew Delhi, India
| | - Santosh Kumar
- Immunology Group, International Centre for Genetic Engineering and BiotechnologyNew Delhi, India
| | - Mona Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru UniversityNew Delhi, India
| | | | - Anand Ranganathan
- Special Centre for Molecular Medicine, Jawaharlal Nehru UniversityNew Delhi, India
| | - Luc Van Kaer
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of MedicineNashville, TN, USA
| | | | - Gobardhan Das
- Special Centre for Molecular Medicine, Jawaharlal Nehru UniversityNew Delhi, India
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