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Singh A, Ottavi S, Krieger I, Planck K, Perkowski A, Kaneko T, Davis AM, Suh C, Zhang D, Goullieux L, Alex A, Roubert C, Gardner M, Preston M, Smith DM, Ling Y, Roberts J, Cautain B, Upton A, Cooper CB, Serbina N, Tanvir Z, Mosior J, Ouerfelli O, Yang G, Gold BS, Rhee KY, Sacchettini JC, Fotouhi N, Aubé J, Nathan C. Redirecting raltitrexed from cancer cell thymidylate synthase to Mycobacterium tuberculosis phosphopantetheinyl transferase. Sci Adv 2024; 10:eadj6406. [PMID: 38489355 PMCID: PMC10942122 DOI: 10.1126/sciadv.adj6406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 02/09/2024] [Indexed: 03/17/2024]
Abstract
There is a compelling need to find drugs active against Mycobacterium tuberculosis (Mtb). 4'-Phosphopantetheinyl transferase (PptT) is an essential enzyme in Mtb that has attracted interest as a potential drug target. We optimized a PptT assay, used it to screen 422,740 compounds, and identified raltitrexed, an antineoplastic antimetabolite, as the most potent PptT inhibitor yet reported. While trying unsuccessfully to improve raltitrexed's ability to kill Mtb and remove its ability to kill human cells, we learned three lessons that may help others developing antibiotics. First, binding of raltitrexed substantially changed the configuration of the PptT active site, complicating molecular modeling of analogs based on the unliganded crystal structure or the structure of cocrystals with inhibitors of another class. Second, minor changes in the raltitrexed molecule changed its target in Mtb from PptT to dihydrofolate reductase (DHFR). Third, the structure-activity relationship for over 800 raltitrexed analogs only became interpretable when we quantified and characterized the compounds' intrabacterial accumulation and transformation.
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Affiliation(s)
- Amrita Singh
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
| | - Samantha Ottavi
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Inna Krieger
- Department of Biochemistry and Biophysics, Texas Agricultural and Mechanical University, College Station, TX 77843, USA
| | - Kyle Planck
- Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Andrew Perkowski
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Takushi Kaneko
- Global Alliance for TB Drug Development, New York, NY 10005, USA
| | | | - Christine Suh
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
| | - David Zhang
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
| | | | - Alexander Alex
- AMG Consultants Limited, Camburgh House, 27 New Dover Road, Canterbury, Kent, CT1 3DN, UK
- Evenor Consulting Limited, The New Barn, Mill Lane, Eastry, Kent CT13 0JW, UK
| | | | - Mark Gardner
- AMG Consultants Limited, Camburgh House, 27 New Dover Road, Canterbury, Kent, CT1 3DN, UK
| | - Marian Preston
- Discovery Sciences, R&D, AstraZeneca, Cambridge CB4 0WG, UK
| | - Dave M. Smith
- Discovery Sciences, R&D, AstraZeneca, Cambridge CB4 0WG, UK
| | - Yan Ling
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
| | - Julia Roberts
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
| | - Bastien Cautain
- Evotec ID (Lyon), SAS 40 Avenue Tony Garnier, Lyon 69001, France
| | - Anna Upton
- Evotec ID (Lyon), SAS 40 Avenue Tony Garnier, Lyon 69001, France
| | | | - Natalya Serbina
- Global Alliance for TB Drug Development, New York, NY 10005, USA
| | - Zaid Tanvir
- Global Alliance for TB Drug Development, New York, NY 10005, USA
| | - John Mosior
- Department of Biochemistry and Biophysics, Texas Agricultural and Mechanical University, College Station, TX 77843, USA
| | - Ouathek Ouerfelli
- Organic Synthesis Core, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Guangli Yang
- Organic Synthesis Core, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ben S. Gold
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
| | - Kyu Y. Rhee
- Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - James C. Sacchettini
- Department of Biochemistry and Biophysics, Texas Agricultural and Mechanical University, College Station, TX 77843, USA
| | - Nader Fotouhi
- Global Alliance for TB Drug Development, New York, NY 10005, USA
| | - Jeffrey Aubé
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Carl Nathan
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10021, USA
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Cabello-Donayre M, Cabello-Donayre I, Guerra D, Orrego LM, Morales JC, Cautain B, Vicente F, Pérez-Victoria JM. A yeast-based high-throughput screen identifies inhibitors of trypanosomatid HRG heme transporters with potent leishmanicidal and trypanocidal activity. Int J Antimicrob Agents 2024; 63:107092. [PMID: 38242251 DOI: 10.1016/j.ijantimicag.2024.107092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 12/19/2023] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
OBJECTIVES New drugs are required to treat neglected diseases caused by trypanosomatid parasites such as Leishmania, Trypanosoma brucei and Trypanosoma cruzi. An Achilles' heel of these parasites is their heme auxotrophy; they have an absolute dependence on scavenging this molecule from the host, and trypanosomatid HRG heme transporters (TrypHRG) play an important role in this process. As these proteins are essential for the parasites and have low similarity with their human orthologue, they have been proposed as attractive therapeutic targets. Here, we have developed two yeast-based assays that allow an inexpensive high-throughput screening of TrypHRG inhibitors within a cellular context. METHODS We first assessed that Leishmania major, Leishmania donovani and T. brucei HRG proteins were heterologously expressed in the digestive vacuole membrane of a mutant heme auxotrophic yeast strain. Here, TrypHRG imports hemoglobinderived heme into the cytosol, allowing mutant yeast to grow in the presence of low hemoglobin concentrations and promoting the activity of hemeproteins such as catalase, which was used as a reporter of cytosolic heme levels. RESULTS In the presence of a TrypHRG inhibitor, both catalase activity (test 1) and yeast growth (test 2) were diminished, being easily monitored. The assays were then tested on a pilot scale for HTS purposes using a collection of repurposing drugs and food antioxidants. Some of the TrypHRG inhibitors identified in yeast presented strong trypanocidal and leishmanicidal activity in the submicromolar range, proving the potential of this approach. CONCLUSIONS Cumulatively, it was shown that the inhibition bioassays developed were robust and applicable to large-scale HTS.
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Affiliation(s)
- María Cabello-Donayre
- Instituto de Parasitología y Biomedicina "López-Neyra", CSIC, (IPBLN-CSIC), PTS Granada, Granada, Spain; Universidad Internacional de La Rioja, Logroño, La Rioja, Spain
| | - Irene Cabello-Donayre
- Instituto de Parasitología y Biomedicina "López-Neyra", CSIC, (IPBLN-CSIC), PTS Granada, Granada, Spain
| | - Diego Guerra
- Instituto de Parasitología y Biomedicina "López-Neyra", CSIC, (IPBLN-CSIC), PTS Granada, Granada, Spain; Programa de Estudio y Control de Enfermedades Tropicales PECET, Faculty of Medicine, University of Antioquia, Medellín, Colombia
| | - Lina M Orrego
- Instituto de Parasitología y Biomedicina "López-Neyra", CSIC, (IPBLN-CSIC), PTS Granada, Granada, Spain
| | - Juan C Morales
- Instituto de Parasitología y Biomedicina "López-Neyra", CSIC, (IPBLN-CSIC), PTS Granada, Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, PTS Granada, Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, PTS Granada, Granada, Spain
| | - José M Pérez-Victoria
- Instituto de Parasitología y Biomedicina "López-Neyra", CSIC, (IPBLN-CSIC), PTS Granada, Granada, Spain.
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Mackenzie TA, Tormo JR, Cautain B, Martínez G, Sánchez I, Genilloud O, Vicente F, Ramos MC. Acoustic droplet ejection facilitates cell-based high-throughput screenings using natural products. SLAS Technol 2023:S2472-6303(23)00062-6. [PMID: 37898289 DOI: 10.1016/j.slast.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/21/2023] [Accepted: 10/24/2023] [Indexed: 10/30/2023]
Abstract
Natural Products (NPs) are one of the main sources for drug discovery. Many clinical drugs are NPs or NP-inspired compounds, and recently discovered New Chemical Entities (NCEs) of NPs are emerging as promising new drugs. High-Throughput Screening (HTS) of large sample sets or libraries has grown to be vital for the drug discovery field. Industrial-scale HTS of NP libraries can be limited due to the difficulties entailed in working with tiny extract volumes and the variability in viscosity of NP extracts. For these reasons, the implementation of new technologies to miniaturize different reagent volumes grows to be fundamental. Since Acoustic Droplet Ejection (ADE) emerged as a helpful tool in HTS campaigns for the transference of compound libraries. The aim of this work was to test the effectiveness of ADE for the dispensation of NP extract libraries in cell-based HTS assays.
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Affiliation(s)
- Thomas A Mackenzie
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - José R Tormo
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - Germán Martínez
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - Isabel Sánchez
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain
| | - Maria C Ramos
- Fundación MEDINA, Av. Conocimiento 34, Parque Tecnológico de la Salud, 18016 Granada, Spain.
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Rodríguez-Ruiz M, Ramos MC, Campos MJ, Díaz-Sánchez I, Cautain B, Mackenzie TA, Vicente F, Corpas FJ, Palma JM. Pepper Fruit Extracts Show Anti-Proliferative Activity against Tumor Cells Altering Their NADPH-Generating Dehydrogenase and Catalase Profiles. Antioxidants (Basel) 2023; 12:1461. [PMID: 37507999 PMCID: PMC10376568 DOI: 10.3390/antiox12071461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/14/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Cancer is considered one of the main causes of human death worldwide, being characterized by an alteration of the oxidative metabolism. Many natural compounds from plant origin with anti-tumor attributes have been described. Among them, capsaicin, which is the molecule responsible for the pungency in hot pepper fruits, has been reported to show antioxidant, anti-inflammatory, and analgesic activities, as well as anti-proliferative properties against cancer. Thus, in this work, the potential anti-proliferative activity of pepper (Capsicum annuum L.) fruits from diverse varieties with different capsaicin contents (California < Piquillo < Padrón < Alegría riojana) against several tumor cell lines (lung, melanoma, hepatoma, colon, breast, pancreas, and prostate) has been investigated. The results showed that the capsaicin content in pepper fruits did not correspond with their anti-proliferative activity against tumor cell lines. By contrast, the greatest activity was promoted by the pepper tissues which contained the lowest capsaicin amount. This indicates that other compounds different from capsaicin have this anti-tumor potentiality in pepper fruits. Based on this, green fruits from the Alegría riojana variety, which has negligible capsaicin levels, was used to study the effect on the oxidative and redox metabolism of tumor cell lines from liver (Hep-G2) and pancreas (MIA PaCa-2). Different parameters from both lines treated with crude pepper fruit extracts were determined including protein nitration and protein S-nitrosation (two post-translational modifications (PTMs) promoted by nitric oxide), the antioxidant capacity, as well as the activity of the antioxidant enzymes superoxide dismutase (SOD), catalase, and glutathione peroxidase (GPX), among others. In addition, the activity of the NADPH-generating enzymes glucose-6-phosphate dehydrogenase (G6PDH), 6-phosphogluconate dehydrogenase (6PGDH), and NADP-isocitrate dehydrogenase (NADP-ICDH) was followed. Our data revealed that the treatment of both cell lines with pepper fruit extracts altered their antioxidant capacity, enhanced their catalase activity, and considerably reduced the activity of the NADPH-generating enzymes. As a consequence, less H2O2 and NADPH seem to be available to cells, thus avoiding cell proliferation and possibly triggering cell death in both cell lines.
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Affiliation(s)
- Marta Rodríguez-Ruiz
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signaling in Plants, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), 18008 Granada, Spain
| | - María C Ramos
- Department Screening & Target Validation, Fundación MEDINA, 18016 Granada, Spain
| | - María J Campos
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signaling in Plants, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), 18008 Granada, Spain
| | - Inmaculada Díaz-Sánchez
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signaling in Plants, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), 18008 Granada, Spain
| | - Bastien Cautain
- Evotec, University Paul Sabatier Toulouse III, 31100 Toulouse, France
| | - Thomas A Mackenzie
- Department Screening & Target Validation, Fundación MEDINA, 18016 Granada, Spain
| | - Francisca Vicente
- Department Screening & Target Validation, Fundación MEDINA, 18016 Granada, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signaling in Plants, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), 18008 Granada, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Stress, Development and Signaling in Plants, Estación Experimental del Zaidín (Spanish National Research Council, CSIC), 18008 Granada, Spain
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Slavchev IM, Mitrev Y, Shivachev B, Valcheva V, Dogonadze M, Solovieva N, Vyazovaya A, Mokrousov I, Link W, Jiménez L, Cautain B, Mackenzie TA, Portugal I, Lopes F, Capela R, Perdigão J, Dobrikov GM. Synthesis, Characterization and Complex Evaluation of Antibacterial Activity and Cytotoxicity of New Arylmethylidene Ketones and Pyrimidines with Camphane Skeletons. ChemistrySelect 2022. [DOI: 10.1002/slct.202201339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ivaylo M. Slavchev
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences bl. 9, Acad. G. Bonchev str. Sofia 1113 Bulgaria
| | - Yavor Mitrev
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences bl. 9, Acad. G. Bonchev str. Sofia 1113 Bulgaria
| | - Boris Shivachev
- Institute of Mineralogy and Crystallography Bulgarian Academy of Sciences, bl. 107, Acad. G. Bonchev str. Sofia 1113 Bulgaria
| | - Violeta Valcheva
- Stephan Angeloff Institute of Microbiology Bulgarian Academy of Sciences bl. 26, Acad. G. Bonchev str. Sofia 1113 Bulgaria
| | - Marine Dogonadze
- St. Petersburg Research Institute of Phthisiopulmonology St. Petersburg Russia
| | - Natalia Solovieva
- St. Petersburg Research Institute of Phthisiopulmonology St. Petersburg Russia
- Laboratory of Molecular Epidemiology and Evolutionary Genetics St. Petersburg Pasteur Institute St. Petersburg Russia
| | - Anna Vyazovaya
- Laboratory of Molecular Epidemiology and Evolutionary Genetics St. Petersburg Pasteur Institute St. Petersburg Russia
| | - Igor Mokrousov
- Laboratory of Molecular Epidemiology and Evolutionary Genetics St. Petersburg Pasteur Institute St. Petersburg Russia
| | - Wolfgang Link
- Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4 28029 Madrid Spain
| | - Lucía Jiménez
- Instituto de Investigaciones Biomédicas “Alberto Sols” (CSIC-UAM), Arturo Duperier 4 28029 Madrid Spain
| | - Bastien Cautain
- Fundación MEDINA Centro de Excelencia en Investigación de Medicamentos Innovadores de Andalucía Parque Tecnológico de Ciencias de la Salud Avda. del Conocimiento 34 18016 Granada Spain
| | - Thomas A. Mackenzie
- Fundación MEDINA Centro de Excelencia en Investigación de Medicamentos Innovadores de Andalucía Parque Tecnológico de Ciencias de la Salud Avda. del Conocimiento 34 18016 Granada Spain
| | - Isabel Portugal
- iMed.ULisboa – Instituto de Investigação do Medicamento Faculdade de Farmácia Universidade de Lisboa Lisboa Portugal
| | - Francisca Lopes
- iMed.ULisboa – Instituto de Investigação do Medicamento Faculdade de Farmácia Universidade de Lisboa Lisboa Portugal
| | - Rita Capela
- iMed.ULisboa – Instituto de Investigação do Medicamento Faculdade de Farmácia Universidade de Lisboa Lisboa Portugal
| | - João Perdigão
- iMed.ULisboa – Instituto de Investigação do Medicamento Faculdade de Farmácia Universidade de Lisboa Lisboa Portugal
| | - Georgi M. Dobrikov
- Institute of Organic Chemistry with Centre of Phytochemistry Bulgarian Academy of Sciences bl. 9, Acad. G. Bonchev str. Sofia 1113 Bulgaria
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Juhasz B, Pech-Puch D, Tabudravu JN, Cautain B, Reyes F, Jiménez C, Kyeremeh K, Jaspars M. Dermacozine N, the First Natural Linear Pentacyclic Oxazinophenazine with UV-Vis Absorption Maxima in the Near Infrared Region, along with Dermacozines O and P Isolated from the Mariana Trench Sediment Strain Dermacoccus abyssi MT 1.1 T. Mar Drugs 2021; 19:325. [PMID: 34205180 PMCID: PMC8226881 DOI: 10.3390/md19060325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 12/12/2022] Open
Abstract
Three dermacozines, dermacozines N-P (1-3), were isolated from the piezotolerant Actinomycete strain Dermacoccus abyssi MT 1.1T, which was isolated from a Mariana Trench sediment in 2006. Herein, we report the elucidation of their structures using a combination of 1D/2D NMR, LC-HRESI-MSn, UV-Visible, and IR spectroscopy. Further confirmation of the structures was achieved through the analysis of data from density functional theory (DFT)-UV-Visible spectral calculations and statistical analysis such as two tailed t-test, linear regression-, and multiple linear regression analysis applied to either solely experimental or to experimental and calculated 13C-NMR chemical shift data. Dermacozine N (1) bears a novel linear pentacyclic phenoxazine framework that has never been reported as a natural product. Dermacozine O (2) is a constitutional isomer of the known dermacozine F while dermacozine P (3) is 8-benzoyl-6-carbamoylphenazine-1-carboxylic acid. Dermacozine N (1) is unique among phenoxazines due to its near infrared (NIR) absorption maxima, which would make this compound an excellent candidate for research in biosensing chemistry, photodynamic therapy (PDT), opto-electronic applications, and metabolic mapping at the cellular level. Furthermore, dermacozine N (1) possesses weak cytotoxic activity against melanoma (A2058) and hepatocellular carcinoma cells (HepG2) with IC50 values of 51 and 38 μM, respectively.
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Affiliation(s)
- Bertalan Juhasz
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen AB24 3UE, UK;
| | - Dawrin Pech-Puch
- Departamento de Biología Marina, Universidad Autónoma de Yucatán, Km. 15.5, Carretera Mérida-Xmatkuil, A.P. 4-116 Itzimná, Mérida 97100, Yucatán, Mexico;
| | - Jioji N. Tabudravu
- School of Natural Sciences, Faculty of Science and Technology, University of Central Lancashire, Preston PR1 2HE, UK;
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Edificio Centro de Desarrollo Farmacéutico y Alimentario, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain; (B.C.); (F.R.)
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Edificio Centro de Desarrollo Farmacéutico y Alimentario, Parque Tecnológico de Ciencias de la Salud, 18016 Granada, Spain; (B.C.); (F.R.)
| | - Carlos Jiménez
- Centro de Investigacións Científicas Avanzadas (CICA) e Departmento de Química, Facultade de Ciencias, AE CICA-INIBIC, Universidad da Coruña, 15071 A Coruña, Spain;
| | - Kwaku Kyeremeh
- Marine and Plant Research Laboratory of Ghana, Department of Chemistry, School of Physical and Mathematical Sciences, University of Ghana, Legon-Accra P.O. Box LG 56, Ghana;
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Old Aberdeen AB24 3UE, UK;
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Crespo G, Pérez-Victoria I, Ortiz-López FJ, González-Menéndez V, de la Cruz M, Cautain B, Sánchez P, Vicente F, Genilloud O, Reyes F. Structural Elucidation of Antibiotic TKR2999, an Antifungal Lipodepsipeptide Isolated from the Fungus Foliophoma fallens. Antibiotics (Basel) 2020; 9:antibiotics9060278. [PMID: 32466351 PMCID: PMC7345921 DOI: 10.3390/antibiotics9060278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 11/16/2022] Open
Abstract
An antifungal lipodepsipeptide was obtained from cultures of the fungus Foliophoma fallens CF-236885. Its structure, elucidated by HRMS and NMR spectroscopy, contained Gly, Thr, Asn, β-Ala, Orn, Ala, two Ser residues, and 3-hydroxy-4-methylhexadecanoic acid. The absolute configuration of its amino acid residues was determined using Marfey’s analysis and J-based configuration analysis helped to establish the relative configuration of the 3-hydroxy-4-methylhexadecanoic acid moiety. A literature search retrieved a patent describing antibiotic TKR2999 (1), whose non-disclosed structure was confirmed to be identical to that found for our compound, according to its physicochemical properties and NMR spectra. Compound 1 displayed potent antifungal activity against Aspergillus fumigatus and a panel of Candida strains.
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Abstract
The transport through the nuclear pore complex is used by cancer cells to evade tumor-suppressive mechanisms. Several tumor-suppressors have been shown to be excluded from the cell nucleus in cancer cells by the nuclear export receptor CRM1 and abnormal expression of CRM1 is oncogenic. Inhibition of CRM1 has long been postulated as potential approach for the treatment of cancer and to overcome therapy resistance. Furthermore, the nuclear export of viral components mediated by the CRM1 is crucial in various stages of the viral lifecycle and assembly of many viruses from diverse families, including coronavirus. However, the first nuclear export inhibitors failed or never entered into clinical trials. More recently CRM1 reemerged as a cancer target and a successful proof of concept was achieved with the clinical approval of Selinexor. The chemical complexity of natural products is a promising perspective for the discovery of new nuclear export inhibitors with a favorable toxicity profile. Several screening campaigns have been performed and several natural product-based nuclear export inhibitors have been identified. With this review we give an overview over the role of CRM1-mediated nuclear export in cancer and the effort made to identify and develop nuclear export inhibitors in particular from natural sources.
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Affiliation(s)
- Bibiana I Ferreira
- Centre for Biomedical Research (CBMR), University of Algarve, Faro, Portugal.,Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal.,Algarve Biomedical Center (ABC), University of Algarve, Faro, Portugal
| | - Bastien Cautain
- Fundacion MEDINA Parque tecnológico ciencias de la salud, Granada, Spain.,Evotec France, Toulouse, France
| | - Inês Grenho
- Centre for Biomedical Research (CBMR), University of Algarve, Faro, Portugal.,Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal.,Algarve Biomedical Center (ABC), University of Algarve, Faro, Portugal
| | - Wolfgang Link
- Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM), Madrid, Spain
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Santos JD, Vitorino I, de la Cruz M, Díaz C, Cautain B, Annang F, Pérez-Moreno G, Gonzalez I, Tormo JR, Martin J, Vicente MF, Lage OM. Diketopiperazines and other bioactive compounds from bacterial symbionts of marine sponges. Antonie van Leeuwenhoek 2020; 113:875-887. [DOI: 10.1007/s10482-020-01398-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 02/20/2020] [Indexed: 01/22/2023]
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10
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Koagne RR, Annang F, Cautain B, Martín J, Pérez-Moreno G, Bitchagno GTM, González-Pacanowska D, Vicente F, Simo IK, Reyes F, Tane P. Cytotoxycity and antiplasmodial activity of phenolic derivatives from Albizia zygia (DC.) J.F. Macbr. (Mimosaceae). BMC Complement Med Ther 2020; 20:8. [PMID: 32020891 PMCID: PMC7076739 DOI: 10.1186/s12906-019-2792-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 12/09/2019] [Indexed: 11/24/2022] Open
Abstract
Background The proliferation and resistance of microorganisms area serious threat against humankind and the search for new therapeutics is needed. The present report describes the antiplasmodial and anticancer activities of samples isolated from the methanol extract of Albizia zygia (Mimosaseae). Material The plant extract was prepared by maceration in methanol. Standard chromatographic, HPLC and spectroscopic methods were used to isolate and identify six compounds (1–6). The acetylated derivatives (7–10) were prepared by modifying 2-O-β-D-glucopyranosyl-4-hydroxyphenylacetic acid and quercetin 3-O-α-L-rhamnopyranoside, previously isolated from A. zygia (Mimosaceae). A two-fold serial micro-dilution method was used to determine the IC50s against five tumor cell lines and Plasmodium falciparum. Results In general, compounds showed moderate activity against the human pancreatic carcinoma cell line MiaPaca-2 (10 < IC50 < 20 μM) and weak activity against other tumor cell lines such as lung (A-549), hepatocarcinoma (HepG2) and human breast adenocarcinoma (MCF-7and A2058) (IC50 > 20 μM). Additionally, the two semi-synthetic derivatives of quercetin 3-O-α-L-rhamnopyranoside exhibited significant activity against P. falciparum with IC50 of 7.47 ± 0.25 μM for compound 9 and 6.77 ± 0.25 μM for compound 10, higher than that of their natural precursor (IC50 25.1 ± 0.25 μM). Conclusion The results of this study clearly suggest that, the appropriate introduction of acetyl groups into some flavonoids could lead to more useful derivatives for the development of an antiplasmodial agent.
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Affiliation(s)
- Romeol Romain Koagne
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.,Fundación MEDINA, Centro de Excelencia en Investigación de MedicamentosInnovadores en Andalucía, Avda. delConocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016, Granada, Spain
| | - Frederick Annang
- Fundación MEDINA, Centro de Excelencia en Investigación de MedicamentosInnovadores en Andalucía, Avda. delConocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016, Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de MedicamentosInnovadores en Andalucía, Avda. delConocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016, Granada, Spain
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de MedicamentosInnovadores en Andalucía, Avda. delConocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016, Granada, Spain
| | - Guiomar Pérez-Moreno
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC) Avda. del Conocimiento s/n, 18016, Armilla, Granada, Spain
| | | | - Dolores González-Pacanowska
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC) Avda. del Conocimiento s/n, 18016, Armilla, Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de MedicamentosInnovadores en Andalucía, Avda. delConocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016, Granada, Spain
| | - Ingrid Konga Simo
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de MedicamentosInnovadores en Andalucía, Avda. delConocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016, Granada, Spain
| | - Pierre Tane
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
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11
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Pech-Puch D, Rodríguez J, Cautain B, Sandoval-Castro CA, Jiménez C. Cytotoxic Furanoditerpenes from the Sponge Spongia tubulifera Collected in the Mexican Caribbean. Mar Drugs 2019; 17:md17070416. [PMID: 31315183 PMCID: PMC6669439 DOI: 10.3390/md17070416] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 07/10/2019] [Accepted: 07/12/2019] [Indexed: 11/16/2022] Open
Abstract
Two new spongian furanoditerpenes, 3β-hydroxyspongia-13(16),14-dien-2-one (1) and 19-dehydroxy-spongian diterpene 17 (2), along with five known terpenes, the spongian furanoditerpenes 9-nor-3-hydroxyspongia-3,13(16),14-trien-2-one (3), 3β,19 dihydroxyspongia-13(16),14-dien-2-one (epispongiadiol) (4) and spongian diterpene 17 (5), the furanoditerpene ambliol C (6), and the sesterterpene scalarin (7), were isolated from the methanolic extract of the sponge Spongia tubulifera, collected in the Mexican Caribbean. The planar structures of the new compounds were elucidated by 1D/2D NMR and IR spectroscopic analysis, high resolution electrospray mass spectrometry (HRESIMS), and comparison of their spectral data with those reported in the literature. Absolute configurations were determined by comparison of the experimental electronic circular dichroism (ECD) spectrum with those calculated by time-dependent density functional theory (TDDFT). Compounds 1, 4, and 6 displayed weak cytotoxic activity against different human tumour cell lines.
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Affiliation(s)
- Dawrin Pech-Puch
- Centro de Investigacións Científicas Avanzadas (CICA) e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain
| | - Jaime Rodríguez
- Centro de Investigacións Científicas Avanzadas (CICA) e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain.
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain
| | - Carlos Alfredo Sandoval-Castro
- Universidad Autónoma de Yucatán, Campus de Ciencias Biológicas y Agropecuarias, Facultad de Medicina Veterinaria y Zootecnia, Km. 15.5 Carretera Mérida-Xmatkuil, Apdo. Postal 4-116, Itzimná Mérida, Yucatán, Mexico
| | - Carlos Jiménez
- Centro de Investigacións Científicas Avanzadas (CICA) e Departamento de Química, Facultade de Ciencias, Universidade da Coruña, 15071 A Coruña, Spain.
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12
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Martínez KA, Lauritano C, Druka D, Romano G, Grohmann T, Jaspars M, Martín J, Díaz C, Cautain B, de la Cruz M, Ianora A, Reyes F. Amphidinol 22, a New Cytotoxic and Antifungal Amphidinol from the Dinoflagellate Amphidinium carterae. Mar Drugs 2019; 17:md17070385. [PMID: 31252576 PMCID: PMC6669446 DOI: 10.3390/md17070385] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/20/2019] [Accepted: 06/24/2019] [Indexed: 12/27/2022] Open
Abstract
Due to the unique biodiversity and the physical-chemical properties of their environment, marine microorganisms have evolved defense and signaling compounds that often have no equivalent in terrestrial habitats. The aim of this study was to screen extracts of the dinoflagellate Amphidinium carterae for possible bioactivities (i.e., anticancer, anti-inflammatory, anti-diabetes, antibacterial and antifungal properties) and identify bioactive compounds. Anticancer activity was evaluated on human lung adenocarcinoma (A549), human skin melanoma (A2058), human hepatocellular carcinoma (HepG2), human breast adenocarcinoma (MCF7) and human pancreas carcinoma (MiaPaca-2) cell lines. Antimicrobial activities were evaluated against Gram-positive bacteria (Staphylococcus aureus MRSA and MSSA), Gram-negative bacteria (i.e., Escherichia coli and Klebsiella pneumoniae), Mycobacterium tuberculosis and the fungus Aspergillus fumigatus. The results indicated moderate biological activities against all the cancer cells lines and microorganisms tested. Bioassay-guided fractionation assisted by HRMS analysis allowed the detection of one new and two known amphidinols that are potentially responsible for the antifungal and cytotoxic activities observed. Further isolation, purification and structural elucidation led to a new amphidinol, named amphidinol 22. The planar structure of the new compound was determined by analysis of its HRMS and 1D and 2D NMR spectra. Its biological activity was evaluated, and it displayed both anticancer and antifungal activities.
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Affiliation(s)
- Kevin A Martínez
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy
| | - Chiara Lauritano
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy.
| | - Dana Druka
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK
| | - Giovanna Romano
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy
| | - Teresa Grohmann
- The Rowett Institute, University of Aberdeen, Aberdeen AB25 2ZD, Scotland, UK
| | - Marcel Jaspars
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain
| | - Adrianna Ianora
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, 18016 Granada, Spain
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13
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Guillen PO, Jaramillo KB, Jennings L, Genta-Jouve G, de la Cruz M, Cautain B, Reyes F, Rodríguez J, Thomas OP. Halogenated Tyrosine Derivatives from the Tropical Eastern Pacific Zoantharians Antipathozoanthus hickmani and Parazoanthus darwini. J Nat Prod 2019; 82:1354-1360. [PMID: 31017788 DOI: 10.1021/acs.jnatprod.9b00173] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the search for bioactive marine natural products from zoantharians of the Tropical Eastern Pacific, four new tyrosine dipeptides, named valdiviamides A-D (1-4), were isolated from Antipathozoanthus hickmani, and two new tyramine derivatives, 5 and 6, from Parazoanthus darwini. The phenols of all six tyrosine derivatives are substituted by bromine and/or iodine atoms at the ortho positions of the hydroxyl. The planar structures of these aromatic alkaloids were elucidated from 1D and 2D NMR experiments in combination with HRESIMS data, and the absolute configurations of 1-4 were deduced from comparison between experimental and calculated electronic circular dichroism spectra. As halogenated tyrosine derivatives could represent chemotaxonomic markers of these genera, we decided to undertake the first chemical investigation of another species, Terrazoanthus cf. patagonichus. As expected, no halogenated metabolite was evidenced in the species, but we report herein the identification of two new zoanthoxanthin derivatives, named zoamides E (7) and F (8), from this species. Antimicrobial and cytotoxicity bioassays revealed that valdiviamide B (2) displayed moderate cytotoxicity against the HepG2 cell line with an IC50 value of 7.8 μM.
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Affiliation(s)
- Paul O Guillen
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL , Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral , P.O. Box 09-01-5863, Guayaquil , Ecuador
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Karla B Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL , Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral , P.O. Box 09-01-5863, Guayaquil , Ecuador
- Zoology, School of Natural Sciences and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Laurence Jennings
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Grégory Genta-Jouve
- Équipe C-TAC, UMR CNRS 8038 CiTCoM , Université Paris Descartes , 4 Avenue de l'Observatoire , 75006 Paris , France
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245) , Sorbonne Universités , Muséum National d'Histoire Naturelle, CNRS, Paris , France
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud , E-18016 , Armilla , Granada , Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud , E-18016 , Armilla , Granada , Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud , E-18016 , Armilla , Granada , Spain
| | - Jenny Rodríguez
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL , Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral , P.O. Box 09-01-5863, Guayaquil , Ecuador
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
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14
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Santos JD, Vitorino I, De la Cruz M, Díaz C, Cautain B, Annang F, Pérez-Moreno G, Gonzalez Martinez I, Tormo JR, Martín JM, Urbatzka R, Vicente FM, Lage OM. Bioactivities and Extract Dereplication of Actinomycetales Isolated From Marine Sponges. Front Microbiol 2019; 10:727. [PMID: 31024503 PMCID: PMC6467163 DOI: 10.3389/fmicb.2019.00727] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 03/22/2019] [Indexed: 12/15/2022] Open
Abstract
In the beginning of the twenty-first century, humanity faces great challenges regarding diseases and health-related quality of life. A drastic rise in bacterial antibiotic resistance, in the number of cancer patients, in the obesity epidemics and in chronic diseases due to life expectation extension are some of these challenges. The discovery of novel therapeutics is fundamental and it may come from underexplored environments, like marine habitats, and microbial origin. Actinobacteria are well-known as treasure chests for the discovery of novel natural compounds. In this study, eighteen Actinomycetales isolated from marine sponges of three Erylus genera collected in Portuguese waters were tested for bioactivities with the main goal of isolating and characterizing the responsible bioactive metabolites. The screening comprehended antimicrobial, anti-fungal, anti-parasitic, anti-cancer and anti-obesity properties. Fermentations of the selected strains were prepared using ten different culturing media. Several bioactivities against the fungus Aspergillus fumigatus, the bacteria Staphylococcus aureus methicillin-resistant (MRSA) and the human liver cancer cell line HepG2 were obtained in small volume cultures. Screening in higher volumes showed consistent anti-fungal activity by strain Dermacoccus sp. #91-17 and Micrococcus luteus Berg02-26. Gordonia sp. Berg02-22.2 showed anti-parasitic (Trypanosoma cruzi) and anti-cancer activity against several cell lines (melanoma A2058, liver HepG2, colon HT29, breast MCF7 and pancreatic MiaPaca). For the anti-obesity assay, Microbacterium foliorum #91-29 and #91-40 induced lipid reduction on the larvae of zebrafish (Danio rerio). Dereplication of the extracts from several bacteria showed the existence of a variety of secondary metabolites, with some undiscovered molecules. This work showed that Actinomycetales are indeed good candidates for drug discovery.
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Affiliation(s)
- José D Santos
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Inês Vitorino
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Mercedes De la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Frederick Annang
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Guiomar Pérez-Moreno
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Ignacio Gonzalez Martinez
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Jose R Tormo
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Jesús M Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Ralph Urbatzka
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Francisca M Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Olga M Lage
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
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15
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Brennecke P, Rasina D, Aubi O, Herzog K, Landskron J, Cautain B, Vicente F, Quintana J, Mestres J, Stechmann B, Ellinger B, Brea J, Kolanowski JL, Pilarski R, Orzaez M, Pineda-Lucena A, Laraia L, Nami F, Zielenkiewicz P, Paruch K, Hansen E, von Kries JP, Neuenschwander M, Specker E, Bartunek P, Simova S, Leśnikowski Z, Krauss S, Lehtiö L, Bilitewski U, Brönstrup M, Taskén K, Jirgensons A, Lickert H, Clausen MH, Andersen JH, Vicent MJ, Genilloud O, Martinez A, Nazaré M, Fecke W, Gribbon P. EU-OPENSCREEN: A Novel Collaborative Approach to Facilitate Chemical Biology. SLAS Discov 2019; 24:398-413. [PMID: 30616481 PMCID: PMC6764006 DOI: 10.1177/2472555218816276] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/11/2018] [Accepted: 11/08/2018] [Indexed: 12/27/2022]
Abstract
Compound screening in biological assays and subsequent optimization of hits is indispensable for the development of new molecular research tools and drug candidates. To facilitate such discoveries, the European Research Infrastructure EU-OPENSCREEN was founded recently with the support of its member countries and the European Commission. Its distributed character harnesses complementary knowledge, expertise, and instrumentation in the discipline of chemical biology from 20 European partners, and its open working model ensures that academia and industry can readily access EU-OPENSCREEN's compound collection, equipment, and generated data. To demonstrate the power of this collaborative approach, this perspective article highlights recent projects from EU-OPENSCREEN partner institutions. These studies yielded (1) 2-aminoquinazolin-4(3 H)-ones as potential lead structures for new antimalarial drugs, (2) a novel lipodepsipeptide specifically inducing apoptosis in cells deficient for the pVHL tumor suppressor, (3) small-molecule-based ROCK inhibitors that induce definitive endoderm formation and can potentially be used for regenerative medicine, (4) potential pharmacological chaperones for inborn errors of metabolism and a familiar form of acute myeloid leukemia (AML), and (5) novel tankyrase inhibitors that entered a lead-to-candidate program. Collectively, these findings highlight the benefits of small-molecule screening, the plethora of assay designs, and the close connection between screening and medicinal chemistry within EU-OPENSCREEN.
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Affiliation(s)
- Philip Brennecke
- EU-OPENSCREEN, Leibniz Research
Institute for Molecular Pharmacology, Berlin, Germany
| | - Dace Rasina
- Organic Synthesis Methodology Group,
Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Oscar Aubi
- Department of Biomedicine, University of
Bergen, Bergen, Norway
| | - Katja Herzog
- EU-OPENSCREEN, Leibniz Research
Institute for Molecular Pharmacology, Berlin, Germany
| | - Johannes Landskron
- Centre for Molecular Medicine
Norway–Nordic EMBL Partnership, University of Oslo, Oslo, Norway
| | - Bastien Cautain
- Fundación MEDINA, Health Sciences
Technology Park, Granada, Spain
| | | | - Jordi Quintana
- Department of Experimental and Health
Sciences, Universitat Pompeu Fabra, Barcelona, Catalunya, Spain
| | - Jordi Mestres
- Department of Experimental and Health
Sciences, Universitat Pompeu Fabra, Barcelona, Catalunya, Spain
- IMIM Hospital del Mar Medical Research
Institute, Research Program on Biomedical Informatics (GRIB), Barcelona, Spain
| | - Bahne Stechmann
- EU-OPENSCREEN, Leibniz Research
Institute for Molecular Pharmacology, Berlin, Germany
| | - Bernhard Ellinger
- Fraunhofer Institute for Molecular
Biology and Applied Ecology IME, Screening Port, Hamburg, Germany
| | - Jose Brea
- Institute for Research in Molecular
Medicine and Chronic Diseases—BioFarma Research Group, University of Santiago de
Compostela, Santiago de Compostela, Spain
| | - Jacek L. Kolanowski
- Department of Molecular Probes and
Prodrugs, Institute of Bioorganic Chemistry—Polish Academy of Sciences, Poznan,
Poland
| | - Radosław Pilarski
- Department of Molecular Probes and
Prodrugs, Institute of Bioorganic Chemistry—Polish Academy of Sciences, Poznan,
Poland
| | - Mar Orzaez
- Screening Platform, Principe Felipe
Research Center, Valencia, Spain
| | | | - Luca Laraia
- Center for Nanomedicine and
Theranostics, Department of Chemistry, Technical University of Denmark, Lyngby,
Denmark
- Technical University of Denmark,
DK-OPENSCREEN, Lyngby, Denmark
| | - Faranak Nami
- Center for Nanomedicine and
Theranostics, Department of Chemistry, Technical University of Denmark, Lyngby,
Denmark
- Technical University of Denmark,
DK-OPENSCREEN, Lyngby, Denmark
| | - Piotr Zielenkiewicz
- Department of Bioinformatics,
Institute of Biochemistry and Biophysics—Polish Academy of Sciences, Warsaw,
Poland
| | - Kamil Paruch
- Department of Chemistry—CZ-OPENSCREEN,
Masaryk University, Brno, Czech Republic
| | - Espen Hansen
- The Arctic University of Norway,
University of Tromsø, Marbio, Tromsø, Norway
| | - Jens P. von Kries
- Screening Unit, Leibniz Research
Institute for Molecular Pharmacology, Berlin, Germany
| | - Martin Neuenschwander
- Screening Unit, Leibniz Research
Institute for Molecular Pharmacology, Berlin, Germany
| | - Edgar Specker
- Medicinal Chemistry Research Group,
Leibniz Research Institute for Molecular Pharmacology, Berlin, Germany
| | - Petr Bartunek
- Institute of Molecular Genetics of the
ASCR, CZ-OPENSCREEN, Prague, Czech Republic
| | - Sarka Simova
- Institute of Molecular Genetics of the
ASCR, CZ-OPENSCREEN, Prague, Czech Republic
| | - Zbigniew Leśnikowski
- Laboratory of Molecular Virology and
Biological Chemistry, Institute of Medical Biology—Polish Academy of Sciences, Łódź,
Poland
| | - Stefan Krauss
- Department of Immunology and
Transfusion Medicine, Oslo University Hospital, Oslo, Norway
- Hybrid Technology Hub—Centre of
Excellence—Institute of Basic Medical Sciences, University of Oslo, Oslo,
Norway
| | - Lari Lehtiö
- Faculty of Biochemistry and Molecular
Medicine—Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Ursula Bilitewski
- Working Group Compound Profiling and
Screening, Helmholtz Centre for Infection Research, Brunswick, Germany
| | - Mark Brönstrup
- Department of Chemical Biology,
Helmholtz Centre for Infection Research, Brunswick, Germany
- German Center for Infection Research
(DZIF), partner site Hannover-Brunswick, Brunswick, Germany
| | - Kjetil Taskén
- Centre for Molecular Medicine
Norway–Nordic EMBL Partnership, University of Oslo, Oslo, Norway
- Department of Cancer
Immunology—Institute for Cancer Research, Oslo University Hospital, Oslo,
Norway
- K.G. Jebsen Centre for Cancer
Immunotherapy—Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for B Cell
Malignancies—Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Aigars Jirgensons
- Organic Synthesis Methodology Group,
Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Heiko Lickert
- Institute of Diabetes and Regeneration
Research, Helmholtz Centre Munich German Research Center for Environmental Health,
Neuherberg, Germany
| | - Mads H. Clausen
- Center for Nanomedicine and
Theranostics, Department of Chemistry, Technical University of Denmark, Lyngby,
Denmark
- Technical University of Denmark,
DK-OPENSCREEN, Lyngby, Denmark
| | | | - Maria J. Vicent
- Screening Platform, Principe Felipe
Research Center, Valencia, Spain
| | - Olga Genilloud
- Fundación MEDINA, Health Sciences
Technology Park, Granada, Spain
| | - Aurora Martinez
- Department of Biomedicine, University of
Bergen, Bergen, Norway
| | - Marc Nazaré
- Medicinal Chemistry Research Group,
Leibniz Research Institute for Molecular Pharmacology, Berlin, Germany
| | | | - Philip Gribbon
- Fraunhofer Institute for Molecular
Biology and Applied Ecology IME, Screening Port, Hamburg, Germany
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16
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Castillo F, Mackenzie TA, Cautain B. Immunofluorescence Analysis by Confocal Microscopy for Detecting Endogenous FOXO. Methods Mol Biol 2019; 1890:143-149. [PMID: 30414151 DOI: 10.1007/978-1-4939-8900-3_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cancer cells are known to inactivate tumor suppressor proteins by triggering their anomalous subcellular location. It has been well established that the aberrant location of FOXO proteins is linked to tumor formation, progression of the same, or resistance to anti-neoplastic treatment. Furthermore, the abnormal location of FOXO has also been considered a potential biomarker for diabetic complications or longevity in different organisms. Here, we describe the immunodetection of endogenous FOXO by confocal microscopy, which can be used as a chemical tool to quantify FOXO expression levels, its cellular location, and even its active/inactive forms with relevant antibodies.
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Affiliation(s)
- Francisco Castillo
- Peptomyc S.L. CELLEX/Vall d'Hebron Institute of Oncology, Carrer de Natzaret, 115, Barcelona, Spain
| | - Thomas A Mackenzie
- Fundacion MEDINA Parque tecnologico ciencias de la salud, Granada, Spain
| | - Bastien Cautain
- Fundacion MEDINA Parque tecnologico ciencias de la salud, Granada, Spain.
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17
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Pérez-Victoria I, Oves-Costales D, Lacret R, Martín J, Sánchez-Hidalgo M, Díaz C, Cautain B, Vicente F, Genilloud O, Reyes F. Structure elucidation and biosynthetic gene cluster analysis of caniferolides A–D, new bioactive 36-membered macrolides from the marine-derived Streptomyces caniferus CA-271066. Org Biomol Chem 2019; 17:2954-2971. [DOI: 10.1039/c8ob03115k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The structures of caniferolides A–D have been determined combining NMR and bioinformatics prediction of the absolute configuration.
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18
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Calabro K, Chalén BE, Genta-Jouve G, Jaramillo KB, Domínguez C, de la Cruz M, Cautain B, Reyes F, Thomas OP, Rodríguez J. Callyspongidic Acids: Amphiphilic Diacids from the Tropical Eastern Pacific Sponge Callyspongia cf. californica. J Nat Prod 2018; 81:2301-2305. [PMID: 30360624 DOI: 10.1021/acs.jnatprod.8b00683] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The first chemical study of the marine sponge Callyspongia cf. californica widely distributed along the coasts of the Tropical Eastern Pacific led to the identification of a new family of amphiphilic derivatives called callyspongidic acids. The four isolated metabolites 1-4 feature a hydrophilic diacid end opposed to both an aromatic moiety and a long alkyl chain. They were evaluated against a panel of pathogenic microbes and seven tumoral cell lines, displaying moderate inhibitory properties against the A2058 melanoma cell line with an IC50 of 3.2 μM for callyspongidic acid C13:0 (2).
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Affiliation(s)
- Kevin Calabro
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Bolivar E Chalén
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
| | - Grégory Genta-Jouve
- C-TAC UMR-CNRS 8638 COMETE , Université Paris Descartes , 4 Avenue de l'Observatoire , 75270 Paris , Cedex 06 , France
| | - Karla B Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
- Zoology, School of Natural Sciences and Ryan Institute , National University of Ireland Galway , University Road , H91 TK33 Galway , Ireland
| | - Cristóbal Domínguez
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34 , Parque Tecnológico de Ciencias de la Salud, E-18016 , Armilla, Granada , Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34 , Parque Tecnológico de Ciencias de la Salud, E-18016 , Armilla, Granada , Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34 , Parque Tecnológico de Ciencias de la Salud, E-18016 , Armilla, Granada , Spain
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Jenny Rodríguez
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
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19
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Sarno F, Papulino C, Franci G, Andersen JH, Cautain B, Melardo C, Altucci L, Nebbioso A. 3-Chloro- N'-(2-hydroxybenzylidene) benzohydrazide: An LSD1-Selective Inhibitor and Iron-Chelating Agent for Anticancer Therapy. Front Pharmacol 2018; 9:1006. [PMID: 30245629 PMCID: PMC6137965 DOI: 10.3389/fphar.2018.01006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 08/17/2018] [Indexed: 01/09/2023] Open
Abstract
Despite the discovery and development of novel therapies, cancer is still a leading cause of death worldwide. In order to grow, tumor cells require large quantities of nutrients involved in metabolic processes, and an increase in iron levels is known to contribute to cancer proliferation. Iron plays an important role in the active site of a number of proteins involved in energy metabolism, DNA synthesis and repair, such as ribonucleotide reductase, which induce G0/S phase arrest and exert a marked antineoplastic effect, particularly in leukemia and neuroblastoma. Iron-depletion strategies using iron chelators have been shown to result in cell cycle arrest and apoptosis. Deferoxamine (DFO) was the first FDA-approved drug for the treatment of iron overload pathologies, and has also been recognized as having anticancer properties. The high cost, low permeability and short plasma half-life of DFO led to the development of other iron-chelating drugs. Pyridoxal isonicotinoyl hydrazone (PIH) and its analogs chelate cellular iron by tridentate binding, and inhibit DNA synthesis more robustly than DFO, demonstrating an effective antiproliferative activity. Here, we investigated the biological effects of a PIH derivative, 3-chloro-N′-(2-hydroxybenzylidene)benzohydrazide (CHBH), known to be a lysine-specific histone demethylase 1A inhibitor. We showed that CHBH is able to induce cell proliferation arrest in several human cancer cell lines, including lung, colon, pancreas and breast cancer, at micromolar levels. Our findings indicate that CHBH exerts a dual anticancer action by strongly impairing iron metabolism and modulating chromatin structure and function.
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Affiliation(s)
- Federica Sarno
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | | | - Gianluigi Franci
- Epi-C srl, Naples, Italy.,Dipartimento di Medicina Sperimentale, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Jeanette H Andersen
- Marbio, The University of Tromsø - The Arctic University of Norway, Tromsø, Norway
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Granada, Spain
| | - Colombina Melardo
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Lucia Altucci
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Angela Nebbioso
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
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20
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Almeida C, Pérez-Victoria I, González-Menéndez V, de Pedro N, Martín J, Crespo G, Mackenzie T, Cautain B, Reyes F, Vicente F, Genilloud O. Non-geminal Aliphatic Dihalogenation Pattern in Dichlorinated Diaporthins from Hamigera fusca NRRL 35721. J Nat Prod 2018; 81:1488-1492. [PMID: 29792325 DOI: 10.1021/acs.jnatprod.8b00041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two new epimeric dihalogenated diaporthins, (9 R *)-8-methyl-9,11-dichlorodiaporthin (2) and (9 S *)-8-methyl-9,11-dichlorodiaporthin (3), have been isolated from the soil fungus Hamigera fusca NRRL 35721 alongside the known regioisomeric isocoumarin 8-methyl-11,11-dichlorodiaporthin (1). Their structures were elucidated by high-resolution mass spectrometry and NMR spectroscopy combined with molecular modeling. Compounds 1-3 are the first isocoumarins and the first halogenated metabolites ever reported from the Hamigera genus. The new compounds 2 and 3 display a non-geminal aliphatic dichlorination pattern unprecedented among known fungal dihalogenated aromatic polyketides. A bifunctional methyltransferase/aliphatic halogenase flavoenzyme is proposed to be involved in the biosynthesis of dichlorinated diaporthins 1-3. These metabolites are weakly cytotoxic.
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Affiliation(s)
- Celso Almeida
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Ignacio Pérez-Victoria
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Víctor González-Menéndez
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Nuria de Pedro
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Gloria Crespo
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Thomas Mackenzie
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
| | - Olga Genilloud
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud , Avenida del Conocimiento 34 , 18016 Armilla , Granada , Spain
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21
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Calabro K, Kalahroodi EL, Rodrigues D, Díaz C, Cruz MDL, Cautain B, Laville R, Reyes F, Pérez T, Soussi B, Thomas OP. Poecillastrosides, Steroidal Saponins from the Mediterranean Deep-Sea Sponge Poecillastra compressa (Bowerbank, 1866). Mar Drugs 2017; 15:md15070199. [PMID: 28672858 PMCID: PMC5532641 DOI: 10.3390/md15070199] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/15/2017] [Accepted: 06/21/2017] [Indexed: 11/29/2022] Open
Abstract
The first chemical investigation of the Mediterranean deep-sea sponge Poecillastra compressa (Bowerbank, 1866) led to the identification of seven new steroidal saponins named poecillastrosides A–G (1–7). All saponins feature an oxidized methyl at C-18 into a primary alcohol or a carboxylic acid. While poecillastrosides A–D (1–4) all contain an exo double bond at C-24 of the side-chain and two osidic residues connected at O-2′, poecillastrosides E–G (5–7) are characterized by a cyclopropane on the side-chain and a connection at O-3′ between both sugar units. The chemical structures were elucidated through extensive spectroscopic analysis (High-Resolution Mass Spectrometry (HRESIMS), 1D and 2D NMR) and the absolute configurations of the sugar residues were assigned after acidic hydrolysis and cysteine derivatization followed by LC-HRMS analyses. Poecillastrosides D and E, bearing a carboxylic acid at C-18, were shown to exhibit antifungal activity against Aspergillus fumigatus.
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Affiliation(s)
- Kevin Calabro
- School of Chemistry, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland.
- Cosmo International Ingredients, 855 avenue du Docteur Maurice Donat, 06250 Mougins, France.
| | - Elaheh Lotfi Kalahroodi
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
| | - Daniel Rodrigues
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale, CNRS-Aix-Marseille University, IRD-University Avignon, Station Marine d'Endoume, rue de la batterie des lions, 13007 Marseille, France.
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Rémi Laville
- Cosmo International Ingredients, 855 avenue du Docteur Maurice Donat, 06250 Mougins, France.
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud, E-18016 Armilla, Granada, Spain.
| | - Thierry Pérez
- Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale, CNRS-Aix-Marseille University, IRD-University Avignon, Station Marine d'Endoume, rue de la batterie des lions, 13007 Marseille, France.
| | - Bassam Soussi
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
- Department of Marine Sciences, University of Gothenburg, P.O. Box 460, SE40530 Gothenburg, Sweden.
- Oman Centre for Marine Biotechnology, P.O. Box 236, PC 103 Muscat, Oman.
| | - Olivier P Thomas
- School of Chemistry, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland.
- Géoazur, Université Côte d'Azur, CNRS, OCA, IRD, 250 rue Albert Einstein, 06560 Valbonne, France.
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22
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Crespo G, González-Menéndez V, de la Cruz M, Martín J, Cautain B, Sánchez P, Pérez-Victoria I, Vicente F, Genilloud O, Reyes F. Antifungal Long-Chain Alkenyl Sulphates Isolated from Culture Broths of the Fungus Chaetopsina sp. Planta Med 2017; 83:545-550. [PMID: 27706529 DOI: 10.1055/s-0042-118190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
During a high-throughput screening program focused on the discovery and characterization of new antifungal compounds, a total of 8320 extracts from Fundacion MEDINA's collection were screened against a panel of 6 fungal parasitic strains, namely Candida glabrata, Candida krusei, Candida parapsilosis, Candida tropicalis, Candida albicans, and Aspergillus fumigatus. A total of 127 extracts displayed antifungal properties and, after LC/MS dereplication, 10 were selected for further fractionation. Bioassay-guided fractionation from a 1-L fermentation of one of these extracts, belonging to the fungus Chaetopsina sp., led to the isolation of linoleyl sulphate (1), linolenyl sulphate (2), and oleyl sulphate (3) as the compounds responsible for the antifungal activity. These molecules were previously described as synthetic products with the ability to produce the allosteric inhibition of soybean lipoxygenase and human lipoxygenase.
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Affiliation(s)
- Gloria Crespo
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Víctor González-Menéndez
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Pilar Sánchez
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Ignacio Pérez-Victoria
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, Granada, Spain
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23
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Cautain B, Castillo F, Musso L, Ferreira BI, de Pedro N, Rodriguez Quesada L, Machado S, Vicente F, Dallavalle S, Link W. Discovery of a Novel, Isothiazolonaphthoquinone-Based Small Molecule Activator of FOXO Nuclear-Cytoplasmic Shuttling. PLoS One 2016; 11:e0167491. [PMID: 27936162 PMCID: PMC5147912 DOI: 10.1371/journal.pone.0167491] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/26/2016] [Indexed: 01/01/2023] Open
Abstract
FOXO factors are tumour suppressor proteins commonly inactivated in human tumours by posttranslational modifications. Furthermore, genetic variation within the FOXO3a gene is consistently associated with human longevity. Therefore, the pharmacological activation of FOXO proteins is considered as an attractive therapeutic approach to treat cancer and age-related diseases. In order to identify agents capable of activating FOXOs, we tested a collection of small chemical compounds using image-based high content screening technology. Here, we report the discovery of LOM612 (compound 1a), a newly synthesized isothiazolonaphthoquinone as a potent FOXO relocator. Compound 1a induces nuclear translocation of a FOXO3a reporter protein as well as endogenous FOXO3a and FOXO1 in U2OS cells in a dose-dependent manner. This activity does not affect the subcellular localization of other cellular proteins including NFkB or inhibit CRM1-mediated nuclear export. Furthermore, compound 1a shows a potent antiproliferative effect in human cancer cell lines.
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Affiliation(s)
- Bastien Cautain
- Fundacion MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, Spain
| | - Francisco Castillo
- Fundacion MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, Spain
| | - Loana Musso
- DeFENS Department of Food, Environmental and Nutritional Sciences, Università di Milano, Italy
| | - Bibiana I. Ferreira
- Centre for Biomedical Research (CBMR), Gambelas Campus, Faro, Portugal
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Nuria de Pedro
- Fundacion MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, Spain
| | | | - Susana Machado
- Centre for Biomedical Research (CBMR), Gambelas Campus, Faro, Portugal
| | - Francisca Vicente
- Fundacion MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, Spain
| | - Sabrina Dallavalle
- DeFENS Department of Food, Environmental and Nutritional Sciences, Università di Milano, Italy
| | - Wolfgang Link
- Centre for Biomedical Research (CBMR), Gambelas Campus, Faro, Portugal
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Campus de Gambelas, Faro, Portugal
- * E-mail:
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24
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Pedro ND, Cautain B, Cantizani J, Rodriguez L, Vicente F, . R, Koyyalamud SR. In vitro Neuroprotective Effects of Seven Natural Products Against Rotenone-induced Toxicity in a SH-SY5Y Neuroblastoma Cells Model for Parkinson's Disease. ACTA ACUST UNITED AC 2016. [DOI: 10.5567/pharmacologia.2016.361.370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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de Pedro N, Cantizani J, Ortiz-López FJ, González-Menéndez V, Cautain B, Rodríguez L, Bills GF, Reyes F, Genilloud O, Vicente F. Protective effects of isolecanoric acid on neurodegenerative in vitro models. Neuropharmacology 2015; 101:538-48. [PMID: 26455662 DOI: 10.1016/j.neuropharm.2015.09.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/23/2015] [Accepted: 09/25/2015] [Indexed: 12/13/2022]
Abstract
Parkinson's disease (PD) and Amyotrophic lateral sclerosis (ALS), are neurodegenerative disorders characterized by loss of dopaminergic or motor neurons, respectively. Although understanding of the PD and ALS pathogenesis remains incomplete, increasing evidence from human and animal studies has suggested that aberrant GSK3β, oxidative stress and mitochondrial damage are involved in their pathogenesis. Using two different molecular models, treatment with L-BMAA for ALS and rotenone for PD the effect of isolecanoric acid, a natural product isolated from a fungal culture, was evaluated. Pre-treatment with this molecule caused inhibition of GSK3β and CK1, and a decrease in oxidative stress, mitochondrial damage, apoptosis and cell death. Taken together, these results indicated that isolecanoric acid might have a protective effect against the development of these neurodegenerative disorders.
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Affiliation(s)
- Nuria de Pedro
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain.
| | - Juan Cantizani
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
| | | | - Victor González-Menéndez
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
| | - Lorena Rodríguez
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
| | - Gerald F Bills
- Texas Therapeutics Institute, University of Texas Health Science Center at Houston, United States
| | - Fernando Reyes
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avda. Conocimiento 34, 18016 Granada, Spain
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Cautain B, de Pedro N, Schulz C, Pascual J, da S. Sousa T, Martin J, Pérez-Victoria I, Asensio F, González I, Bills GF, Reyes F, Genilloud O, Vicente F. Identification of the Lipodepsipeptide MDN-0066, a Novel Inhibitor of VHL/HIF Pathway Produced by a New Pseudomonas Species. PLoS One 2015; 10:e0125221. [PMID: 26018559 PMCID: PMC4445906 DOI: 10.1371/journal.pone.0125221] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 03/23/2015] [Indexed: 01/08/2023] Open
Abstract
Throughout recent history, metabolites of microbial origin have had an extraordinary impact on the welfare of humanity. In fact, natural products have largely been –and still are– considered an exceedingly valuable platform for the discovery of new drugs against diverse pathologies. Such value is partly due to their higher complexity and chemical diversity as compared to those of synthetic and combinatorial compounds. Mutations in the Von Hippel-Lindau (vhl) gene are responsible for VHL disease, congenital polycythemia, and are found in many sporadic tumor types. The primary cause of morbidity and mortality for these patients arises from progression of Renal Cell Carcinoma (RCC) or end-stage renal disease. Inactivation of the Von Hippel-Lindau (vhl) tumor suppressor gene arises in the majority of Renal Cell Carcinoma (RCC) as well as in other types of cancer and is associated with a high degree of vascularization and poor prognosis. Loss of pVHL function thus represents a pathognomonic molecular defect for therapeutic exploitation. In this study, renal carcinoma cell lines with naturally occurring vhl mutations (RCC4 VA) and their genetically matched wild-type vhl (RCC4 VHL) counterparts were seeded onto 96-well plates and treated with a collection of 1,040 organic extracts obtained from 130 bacterial strains belonging to at least 25 genera of the phyla Actinobacteria, Firmicutes, Proteobacteria and Bacteroidetes. This strategy allowed us to identify several extracts obtained from bacterial strain F-278,770T, the type strain of the recently proposed new species Pseudomonas granadensis, showing biological activities not associated with previously known bioactive metabolites. The fractionation and structural elucidation of one of these extracts led to the discovery of a new lipodepsipeptide (MDN-0066) with specific toxicity in pVHL deficient cells that is not detectable in cells with pVHL expression rescue. This specific toxicity is associated with apoptosis induction in VHL deficient cell line as demonstrated with PARP activation and Annexin V staining. Our study demonstrated the feasibility of selectively targeting the loss of the vhl tumor suppressor gene for potential clinical benefit. Our results may have great impact on the development of new targeted therapies from natural products for the treatment of cancer and other genetic diseases.
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Affiliation(s)
- Bastien Cautain
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
- * E-mail:
| | - Nuria de Pedro
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Christian Schulz
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Javier Pascual
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Thiciana da S. Sousa
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Jesús Martin
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Ignacio Pérez-Victoria
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Francisco Asensio
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Ignacio González
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Gerald F. Bills
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento 3, 18016 Granada, Spain
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de Pedro N, Cautain B, Gonzalez-Menendez V, Crespo G, Rodriguez L, Diaz C, Fernandez-Acero T, Cid VJ, Molina M, Reyes F, Vicente F, Genilloud O. A novel natural product inhibitor for the PI3K pathway. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e13523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Abstract
High-content imaging with robotic microscopy has been widely used for phenotype-based cellular screening research. This technology is ideally suited to monitor intracellular translocation of macromolecules. Here, we describe in detail the procedures for screening microbial natural extracts for their capability to inhibit the general nuclear export machinery. The method is based on human cells that stably express a fluorescent-tagged reporter protein that contain a nuclear export signal capable of mediating its translocation from the nucleus to the cytoplasm through the nuclear pore. In the presence of a small molecule nuclear export inhibitor, the fluorescent signal is trapped to varying degrees within the nucleus. In order to analyze complex libraries of compounds, the assay has been scaled to 96- or 384-well formats and optimized for high-throughput screening (HTS). Active microbial extracts undergo confirmation screening, bioassay-guided fractionation, chemical dereplication, and compound purification. The active purified compound is characterized in secondary assays that monitor the nuclear export of disease-relevant proteins. Nuclear export inhibitors hold promise as potential cancer and antiviral drugs.
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Affiliation(s)
- Bastien Cautain
- Fundacion MEDINA, Parque Tecnológico Ciencias de la Salud, Avda Conocimiento 3, 18016, Granada, Spain
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Cautain B, Hill R, de Pedro N, Link W. Components and regulation of nuclear transport processes. FEBS J 2014; 282:445-62. [PMID: 25429850 PMCID: PMC7163960 DOI: 10.1111/febs.13163] [Citation(s) in RCA: 177] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 11/11/2014] [Accepted: 11/12/2014] [Indexed: 12/27/2022]
Abstract
The spatial separation of DNA replication and gene transcription in the nucleus and protein translation in the cytoplasm is a uniform principle of eukaryotic cells. This compartmentalization imposes a requirement for a transport network of macromolecules to shuttle these components in and out of the nucleus. This nucleo‐cytoplasmic transport of macromolecules is critical for both cell physiology and pathology. Consequently, investigating its regulation and disease‐associated alterations can reveal novel therapeutic approaches to fight human diseases, such as cancer or viral infection. The characterization of the nuclear pore complex, the identification of transport signals and transport receptors, as well as the characterization of the Ran system (providing the energy source for efficient cargo transport) has greatly facilitated our understanding of the components, mechanisms and regulation of the nucleo‐cytoplasmic transport of proteins in our cells. Here we review this knowledge with a specific emphasis on the selection of disease‐relevant molecular targets for potential therapeutic intervention.
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Affiliation(s)
- Bastien Cautain
- Fundacion MEDINA Parque tecnológico ciencias de la salud, Granada, Spain
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Abstract
The intracellular location and regulation of proteins within each cell is critically important and is typically deregulated in disease especially cancer. The clinical hypothesis for inhibiting the nucleo-cytoplasmic transport is based on the dependence of certain key proteins within malignant cells. This includes a host of well-characterized tumor suppressor and oncoproteins that require specific localization for their function. This aberrant localization of tumour suppressors and oncoproteins results in their their respective inactivation or over-activation. This incorrect localization occurs actively via the nuclear pore complex that spans the nuclear envelope and is mediated by transport receptors. Accordingly, given the significant need for novel, specific disease treatments, the nuclear envelope and the nuclear transport machinery have emerged as a rational therapeutic target in oncology to restore physiological nucleus/cytoplasmic homeostasis. Recent evidence suggests that this approach might be of substantial therapeutic use. This review summarizes the mechanisms of nucleo-cytoplasmic transport, its role in cancer biology and the therapeutic potential of targeting this critical cellular process.
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Affiliation(s)
- Richard Hill
- Regenerative Medicine Program, Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, Portugal
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Cantizani J, Ortiz J, Ravipati AS, Rodriguez L, Cautain B, Zhang L, Reddy N, Nath CE, Vicente F, de Pedro N, Koyyalamud SR. Screening for Natural Inhibitors in Chinese Medicinal Plants against Glycogen Synthase Kinase 3β (GSK-3β). ACTA ACUST UNITED AC 2014. [DOI: 10.5567/pharmacologia.2014.205.214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Cautain B, de Pedro N, Murillo Garzón V, Muñoz de Escalona M, González Menéndez V, Tormo JR, Martin J, El Aouad N, Reyes F, Asensio F, Genilloud O, Vicente F, Link W. High-Content Screening of Natural Products Reveals Novel Nuclear Export Inhibitors. ACTA ACUST UNITED AC 2013; 19:57-65. [DOI: 10.1177/1087057113501389] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Natural products are considered an extremely valuable source for the discovery of new drugs against diverse pathologies. As yet, we have only explored a fraction of the diversity of bioactive compounds, and opportunities for discovering new natural products leading to new drugs are huge. In the present study, U2nesRELOC, a previously established cell-based imaging assay, was employed to screen a collection of extracts of microbial origin for nuclear export inhibition activity. The fluorescent signal of untreated U2nesRELOC cells localizes predominantly to the cytoplasm. Upon treatment with the nuclear export inhibitor leptomycin B, the fluorescent-tagged reporter proteins appear as speckles in the nucleus. A proprietary collection of extracts from fungi, actinomycetes, and unicellular bacteria that covers an uncommonly broad chemical space was used to interrogate this nuclear export assay system. A two-step image-based analysis allowed us to identify 12 extracts with biological activities that are not associated with previously known active metabolites. The fractionation and structural elucidation of active compounds revealed several chemical structures with nuclear export inhibition activity. Here we show that substrates of the nuclear export receptor CRM1, such as Rev, FOXO3a and NF-κB, accumulate in the nucleus in the presence of the fungal metabolite MDN-0105 with an IC50 value of 3.4 µM. Many important processes in tumor formation and progression, as well as in many viral infections, critically depend on the nucleocytoplasmic trafficking of proteins and RNA molecules. Therefore, the disruption of nuclear export is emerging as a novel therapeutic approach with enormous clinical potential. Our work highlights the potential of applying high-throughput phenotypic imaging on natural product extracts to identify novel nuclear export inhibitors.
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Affiliation(s)
- Bastien Cautain
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | - Nuria de Pedro
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | | | | | | | - José R. Tormo
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | - Jesús Martin
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | | | - Fernando Reyes
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | - Francisco Asensio
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | - Olga Genilloud
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | - Francisca Vicente
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Granada, España
| | - Wolfgang Link
- Regenerative Medicine Program, Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, Portugal
- IBB-Institute for Biotechnology and Bioengineering, Centro de Biomedicina Molecular e Estrutural, Universidade do Algarve, Faro, Portugal
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Audoin C, Bonhomme D, Ivanisevic J, de la Cruz M, Cautain B, Monteiro MC, Reyes F, Rios L, Perez T, Thomas OP. Balibalosides, an original family of glucosylated sesterterpenes produced by the Mediterranean sponge Oscarella balibaloi. Mar Drugs 2013; 11:1477-89. [PMID: 23648552 PMCID: PMC3707155 DOI: 10.3390/md11051477] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 04/09/2013] [Accepted: 04/22/2013] [Indexed: 11/16/2022] Open
Abstract
The chemical investigation of the recently described Mediterranean Homoscleromorpha sponge Oscarella balibaloi revealed an original family of five closely related glucosylated sesterterpenes 1-4, named balibalosides. Their structure elucidation was mainly inferred from NMR and HRMS data analyses. Balibalosides differ by the pattern of acetyl substitutions on the three sugar residues linked to the same aglycone sesterterpenoid core. From a biosynthetic perspective, these compounds may represent intermediates in the pathways leading to more complex sesterterpenes frequently found in Dictyoceratida, a sponge Order belonging to Demospongiae, a clade which is phylogenetically distinct from the Homoscleromorpha. While steroid and triterpenoid saponins were already well known from marine sponges, balibalosides are the first examples of glycosilated sesterterpenes.
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Affiliation(s)
- Coralie Audoin
- Nice Institute of Chemistry UMR 7272 CNRS—PCRE, University of Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France; E-Mails: (C.A.); (D.B.); (J.I.)
- GREENSEA SAS, Promenade du Sergent Jean-Louis Navarro, 34140 Mèze, France; E-Mail:
| | - Dominique Bonhomme
- Nice Institute of Chemistry UMR 7272 CNRS—PCRE, University of Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France; E-Mails: (C.A.); (D.B.); (J.I.)
| | - Julijana Ivanisevic
- Nice Institute of Chemistry UMR 7272 CNRS—PCRE, University of Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France; E-Mails: (C.A.); (D.B.); (J.I.)
- Institut Méditerranéen de Biodiversité et d’Ecologie, Aix-Marseille University, UMR 7263 CNRS, Station Marine d’Endoume, 13007 Marseille, France; E-Mail:
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. Del Conocimiento, 3, Parque Tecnológico de Ciencias de la Salud, 18100 Armilla, Granada, Spain; E-Mails: (M.C.); (B.C.); (M.C.M.); (F.R.)
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. Del Conocimiento, 3, Parque Tecnológico de Ciencias de la Salud, 18100 Armilla, Granada, Spain; E-Mails: (M.C.); (B.C.); (M.C.M.); (F.R.)
| | - Maria Cândida Monteiro
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. Del Conocimiento, 3, Parque Tecnológico de Ciencias de la Salud, 18100 Armilla, Granada, Spain; E-Mails: (M.C.); (B.C.); (M.C.M.); (F.R.)
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Avda. Del Conocimiento, 3, Parque Tecnológico de Ciencias de la Salud, 18100 Armilla, Granada, Spain; E-Mails: (M.C.); (B.C.); (M.C.M.); (F.R.)
| | - Laurent Rios
- GREENSEA SAS, Promenade du Sergent Jean-Louis Navarro, 34140 Mèze, France; E-Mail:
| | - Thierry Perez
- Institut Méditerranéen de Biodiversité et d’Ecologie, Aix-Marseille University, UMR 7263 CNRS, Station Marine d’Endoume, 13007 Marseille, France; E-Mail:
| | - Olivier P. Thomas
- Nice Institute of Chemistry UMR 7272 CNRS—PCRE, University of Nice-Sophia Antipolis, Parc Valrose, 06108 Nice, France; E-Mails: (C.A.); (D.B.); (J.I.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +33-492-076-134; Fax: +33-492-076-189
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de Pedro N, Cautain B, Melguizo A, Vicente F, Genilloud O, Peláez F, Tormo JR. Mitochondrial complex I inhibitors, acetogenins, induce HepG2 cell death through the induction of the complete apoptotic mitochondrial pathway. J Bioenerg Biomembr 2012. [PMID: 23180140 DOI: 10.1007/s10863-012-9489-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The development of new anti-neoplastic drugs is a key issue for cancer chemotherapy due to the reality that, most likely, certain cancer cells are resistant to current chemotherapy. The past two decades have witnessed tremendous advances in our understanding of the pathogenesis of cancer. These advances have allowed identification new targets as oncogenes, tumor supressor genes and the possible implication of the mitochondria (Fulda et al. Nat Rev Drug Discov 9:447-464, 2010). Annonaceous Acetogenins (ACGs) have been described as the most potent inhibitors of the respiratory chain because of their interaction with mitochondrial Complex I (Degli Esposti and Ghelli Biochim Biophys Acta 1187:116-120, 1994; Zafra-Polo et al. Phytochemistry 42:253-271, 1996; Miyoshi et al. Biochim Biophys Acta 1365:443-452, 1998; Tormo et al. Arch Biochem Biophys 369:119-126, 1999; Motoyama et al. Bioorg Med Chem Lett 12:2089-2092, 2002). To explore a possible application of natural products from Annonaceous plants to cancer treatment, we have selected four bis-tetrahydrofuranic ACGs, three from Annona cherimolia (cherimolin-1, motrilin and laherradurin) and one from Rollinia mucosa (rollinianstatin-1) in order to fully describe their mechanisms responsible within the cell (Fig. 1). In this study, using a hepato-carcinoma cell line (HepG2) as a model, we showed that the bis-THF ACGs caused cell death through the induction of the apoptotic mitochondrial pathway. Their potency and behavior were compared with the classical mitochondrial respiratory chain Complex I inhibitor rotenone in every apoptotic pathway step.
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Affiliation(s)
- Nuria de Pedro
- Fundación MEDINA. Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 3, 18100 Granada, Spain.
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Sergent V, Cautain B, Khalife J, Deslée D, Bastien P, Dao A, Dubremetz JF, Fournié GJ, Saoudi A, Cesbron-Delauw MF. Innate refractoriness of the Lewis rat to toxoplasmosis is a dominant trait that is intrinsic to bone marrow-derived cells. Infect Immun 2005; 73:6990-7. [PMID: 16177379 PMCID: PMC1230985 DOI: 10.1128/iai.73.10.6990-6997.2005] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Toxoplasmosis is a ubiquitous parasitic infection causing a wide spectrum of diseases. It is usually asymptomatic but can lead to severe ocular and neurological disorders. Among the small-animal models available to study factors that determine susceptibility to toxoplasmosis, the rat appears to be rather similar to humans, particularly in terms of resistance to acute infection. Here, we demonstrate that the Lewis (LEW) rat strain displays an unexpected refractoriness to Toxoplasma infection. Complete resistance was assessed by both negative anti-Toxoplasma serology and lack of detection of the parasite during the course of infection. In this model, sex, age, major histocompatibility complex, and inoculum size had no effect on resistance. Interestingly, progeny from F(1) hybrid crosses between Fischer (F344) or Brown Norway susceptible rats and LEW resistant rats were also fully resistant, showing a dominant effect of the gene or set of genes. Furthermore, resistance of the LEW rat was shown to be dependent on hematopoietic cells and partially abrogated by neutralization of endogenous gamma interferon. To our knowledge, this is the first observation of a rodent strain that is refractory to Toxoplasma infection. This model is therefore an attractive and powerful tool to dissect host genetic factors involved in susceptibility to toxoplasmosis.
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Affiliation(s)
- Véronique Sergent
- CNRS UMR 5163, Institut Jean Roget, Université Joseph Fourier, UFR de Biologie, Grenoble, France
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Xystrakis E, Cavailles P, Dejean AS, Cautain B, Colacios C, Lagrange D, van de Gaar MJ, Bernard I, Gonzalez-Dunia D, Damoiseaux J, Fournié GJ, Saoudi A. Functional and genetic analysis of two CD8 T cell subsets defined by the level of CD45RC expression in the rat. J Immunol 2004; 173:3140-7. [PMID: 15322174 DOI: 10.4049/jimmunol.173.5.3140] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Differential cytokine production by T cells plays an important role in the outcome of the immune response. We show that the level of CD45RC expression differentiates rat CD8 T cells in two subpopulations, CD45RC(high) and CD45RC(low), that have different cytokine profiles and functions. Upon in vitro stimulation, in an Ag-presenting cell-independent system, CD45RC(high) CD8 T cells produce IL-2 and IFN-gamma while CD45RC(low) CD8 T cells produce IL-4, IL-10, and IL-13. In vitro, these subsets also exhibit different cytotoxic and suppressive functions. The CD45RC(high)/CD45RC(low) CD8 T cell ratio was determined in Lewis (LEW) and Brown-Norway (BN) rats. These two rat strains differ with respect to the Th1/Th2 polarization of their immune responses and to their susceptibility to develop distinct immune diseases. The CD45RC(high)/CD45RC(low) CD8 T cell ratio is higher in LEW than in BN rats, and this difference is dependent on hemopoietic cells. Linkage analysis in a F(2)(LEW x BN) intercross identified two quantitative trait loci on chromosomes 9 and 20 controlling the CD45RC(high)/CD45RC(low) CD8 T cell ratio. This genetic control was confirmed in congenic rats. The region on chromosome 9 was narrowed down to a 1.2-cM interval that was found to also control the IgE response in a model of Th2-mediated disorder. Identification of genes that control the CD45RC(high)/CD45RC(low) CD8 T cell subsets in these regions could be of great interest for the understanding of the pathophysiology of immune-mediated diseases.
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Affiliation(s)
- Emmanuel Xystrakis
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité 563, Institut Fédératif de Recherche (IFR) 30, Hôpital Purpan and Université Paul Sabatier, Toulouse, France
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Cautain B, Damoiseaux J, Bernard I, Xystrakis E, Fournié E, van Breda Vriesman P, Druet P, Saoudi A. The CD8 T cell compartment plays a dominant role in the deficiency of Brown-Norway rats to mount a proper type 1 immune response. J Immunol 2002; 168:162-70. [PMID: 11751959 DOI: 10.4049/jimmunol.168.1.162] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Differential cytokine production by T cells plays an important role in regulating the nature of an immune response. In the rat, Brown-Norway (BN) and Lewis (LEW) strains differ markedly in their susceptibility to develop either type 1 or type 2-mediated autoimmune manifestations. BN rats are susceptible to type 2-dependent systemic autoimmunity, while LEW rats are resistant. Conversely, type 1-mediated, organ-specific autoimmune disease can be easily induced in LEW, but not in BN, rats. The mechanisms involved in the differential development of type 1 and type 2 immune responses by these two strains are still unknown. In the present study we analyzed the contributions of APC, CD4 and CD8 T cells, and MHC molecules in the difference between LEW and BN rats to develop a type 1 immune response. First, we show that the defect of BN T cells to produce type 1 cytokines in vitro does not require the presence of APC and, by using an APC-independent stimulation assay, we have localized the defect within the T cell compartment. Both CD4 and CD8 T cells are involved in the defect of BN rats to develop a type 1 immune response with a major contribution of the CD8 T cell compartment. This defect is associated with an increase in the type 2 cytokine IL-4 in both BN T cell populations, but neutralization of this cytokine does not restore this defect. Finally, by using MHC congenic rats, we show that the MHC haplotype is not involved in the defect of BN T cells to mount a proper type 1 cytokine response.
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Affiliation(s)
- Bastien Cautain
- Institut National de la Santé et de la Recherche Médicale, Unité 28, Institut Fédératif de Recherche 30, Hôpital Purpan and Université Paul Sabatier, place du Dr. Baylac, 31059 Toulouse, France
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Fournié GJ, Cautain B, Xystrakis E, Damoiseaux J, Mas M, Lagrange D, Bernard I, Subra JF, Pelletier L, Druet P, Saoudi A. Cellular and genetic factors involved in the difference between Brown Norway and Lewis rats to develop respectively type-2 and type-1 immune-mediated diseases. Immunol Rev 2001; 184:145-60. [PMID: 12086309 DOI: 10.1034/j.1600-065x.2001.1840114.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The understanding of the mechanisms of immune tolerance and the unravelling of the pathophysiology of autoimmune diseases rely on animal models. In this respect, BN and LEW rats represent models of choice to study immune-mediated diseases from the cellular and genetic points of view. Indeed, BN and LEW rats are extremes with respect to their polarisation of the immune response as well as their susceptibility to autoimmune diseases. LEW rats are susceptible to Th1-mediated autoimmune diseases while BN rats are highly susceptible to Th2-mediated autoimmune disease. Comparison of the T cell compartment between LEW and BN rats revealed several important differences. 1) A MHC-dependent quantitative difference that is due to a defect in the CD8 T cell compartment in BN rats. 2) A qualitative MHC-independent difference that is related to a high frequency of CD45RClow CD4 and CD8 T cell subsets, producing IL-4, IL-13, IL-10 and TGF-beta in BN rats as compared to LEW rats. 3) Interestingly, the genetic studies showed that susceptibility to Th1-mediated experimental autoimmune encephalomyelitis, and to Th2-mediated disorders triggered by gold salts as well as the difference in the CD4SRChigh/CD45RClow ratio between LEW and BN rats are genetically determined by regions on chromosomes 9, 10 and 20.
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Affiliation(s)
- G J Fournié
- Institut National de la Santé et de la Recherche Médicale (INSERM) U28, Hôpital Purpan, Université Paul Sabatier, Toulouse, France
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Fournié GJ, Mas M, Cautain B, Savignac M, Subra JF, Pelletier L, Saoudi A, Lagrange D, Calise M, Druet P. Induction of autoimmunity through bystander effects. Lessons from immunological disorders induced by heavy metals. J Autoimmun 2001; 16:319-26. [PMID: 11334498 DOI: 10.1006/jaut.2000.0482] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Autoreactive T cells exist in healthy individuals and represent a potential reservoir of pathogenic effectors which, when stimulated by microbial adjuvants, could trigger an autoimmune disease. Experimental studies have indicated that xenobiotics, well defined from a chemical point of view, could promote the differentiation of autoreactive T cells towards a pathogenic pathway. It is therefore theoretically possible that compounds present in vaccines such as thiomersal or aluminium hydroxyde can trigger autoimmune reactions through bystander effects. Mercury and gold in rodents can induce immunological disorders with autoimmune reactions. In vitro, both activate signal transduction pathways that result in the expression of cytokines, particularly of IL-4 and IFNgamma. In a suitable microenvironment heavy metals could therefore favour the activation of autoreactive T cells. In that respect, genetic background is of major importance. Genome-wide searches in the rat have shown that overlapping chromosomal regions control the immunological disorders induced by gold salt treatment, the development of experimental autoimmune encephalomyelitis and the CD45RC(high)/CD45RC(low)CD4(+)T cells balance. The identification and functional characterization of genes controlling these phenotypes may shed light on key regulatory mechanisms of immune responses. This should help to improve efficacy and safety of vaccines.
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Affiliation(s)
- G J Fournié
- Institut National de la Santé et de la Recherche Médicale (INSERM) U28, Institut Fédératif de Recherche (IFR) 30, Hôpital Purpan and Université Paul Sabatier, Toulouse, France.
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Cautain B, Damoiseaux J, Bernard I, van Straaten H, van Breda Vriesman P, Boneu B, Druet P, Saoudi A. Essential role of TGF-β in the natural resistance to experimental allergic encephalomyelitis in rats. Eur J Immunol 2001. [DOI: 10.1002/1521-4141(200104)31:4<1132::aid-immu1132>3.0.co;2-n] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Cautain B, Damoiseaux J, Bernard I, van Straaten H, van Breda Vriesman P, Boneu B, Druet P, Saoudi A. Essential role of TGF-beta in the natural resistance to experimental allergic encephalomyelitis in rats. Eur J Immunol 2001; 31:1132-40. [PMID: 11298338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Experimental allergic encephalomyelitis (EAE) is a T cell-mediated autoimmune disease induced in susceptible rat strains by a single immunization with myelin basic protein (MBP). The Lewis (LEW) strain is susceptible to disease induction while the Brown Norway (BN) strain is resistant. This resistance involves non-MHC genes since congenic BN-1L rats, with LEW MHC on a BN-derived background, are also resistant. In the present study we show that, upon immunization with MBP, the non-MHC-encoded resistance to develop clinical EAE in BN-1L rats is associated with a decreased production of IFN-gamma. This may be due to a difference between LEW and BN-1L rats in their ability to produce regulatory cytokines such as IL-4, IL-10 and TGF-beta. In comparison to LEW rats, immune lymph node cells from BN-1L rats express an increased amount of IL-4 mRNA but produce less IL-10. Furthermore, the sera from BN-1L rats contain higher amounts of active TGF-beta1. Therefore, we have investigated the involvement of IL-4 and TGF-beta in the resistance of BN-1L rats to develop EAE using neutralizing mAb. Neutralization of TGF-beta, but not IL-4, renders BN-1L rats susceptible to clinical EAE without affecting the proliferation or the cytokine repertoire of immune lymph node cells. With respect to the origin of the endogenous TGF-beta production, we excluded the involvement of CD8 T cells and discuss a possible role of platelets and of CD4 T cells exhibiting the CD45RC(low) phenotype.
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Affiliation(s)
- B Cautain
- INSERM U28, Institut Fédératif de recherche 30, and Université Paul Sabatier, Toulouse, France
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Subra JF, Cautain B, Xystrakis E, Mas M, Lagrange D, van der Heijden H, van de Gaar MJ, Druet P, Fournié GJ, Saoudi A, Damoiseaux J. The balance between CD45RChigh and CD45RClow CD4 T cells in rats is intrinsic to bone marrow-derived cells and is genetically controlled. J Immunol 2001; 166:2944-52. [PMID: 11207243 DOI: 10.4049/jimmunol.166.5.2944] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The level of CD45RC expression differentiates rat CD4 T cells in two subpopulations, CD45RC(high) and CD45RC(low), that have different cytokine profiles and functions. Interestingly, Lewis (LEW) and Brown Norway (BN) rats, two strains that differ in their ability to mount type 1 and type 2 immune responses and in their susceptibility to autoimmune diseases, exhibit distinct CD45RC(high)/CD45RC(low) CD4 T cell ratios. The CD45RC(high) subpopulation predominates in LEW rats, and the CD45RC(low) subpopulation in BN rats. In this study, we found that the antiinflammatory cytokines, IL-4, IL-10, and IL-13, are exclusively produced by the CD45RC(low) CD4 T cells. Using bone marrow chimeras, we showed that the difference in the CD45RC(high)/CD45RC(low) CD4 T cell ratio between naive LEW and BN rats is intrinsic to hemopoietic cells. Furthermore, a genome-wide search for loci controlling the balance between T cell subpopulations was conducted in a (LEW x BN) F(2) intercross. Genome scanning identified one quantitative trait locus on chromosome 9 (approximately 17 centiMorgan (cM); log of the odds ratio (LOD) score 3.9). In addition, two regions on chromosomes 10 (approximately 28 cM; LOD score 3.1) and 20 (approximately 40 cM; LOD ratio score 3) that contain, respectively, a cytokine gene cluster and the MHC region were suggestive for linkage. Interestingly, overlapping regions on these chromosomes have been implicated in the susceptibility to various immune-mediated disorders. The identification and functional characterization of genes in these regions controlling the CD45RC(high)/CD45RC(low) Th cell subpopulations may shed light on key regulatory mechanisms of pathogenic immune responses.
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Affiliation(s)
- J F Subra
- Institut National de la Santé et de la Recherche Médicale, Unité 28, Institut Fédératif de Recherche 30, Hôpital Purpan and Université Paul Sabatier, Toulouse, France
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Damoiseaux JG, Cautain B, Bernard I, Mas M, van Breda Vriesman PJ, Druet P, Fournié G, Saoudi A. A dominant role for the thymus and MHC genes in determining the peripheral CD4/CD8 T cell ratio in the rat. J Immunol 1999; 163:2983-9. [PMID: 10477560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
During their development, immature CD4CD8 double positive thymocytes become committed to either the CD4 or CD8 lineage. The final size of the peripheral CD4 and CD8 T cell compartments depends on thymic output and on the differential survival and proliferation of the respective T cell subsets in the periphery. Our results reveal that the development of the distinct peripheral CD4/CD8 T cell ratio between Lewis and Brown Norway rats originates in the thymus and, as shown by the use of radiation bone marrow chimeras, is determined by selection on radio-resistant stromal cells. Furthermore, this difference is strictly correlated with the MHC haplotype and is the result of a reduction in the absolute number of CD8 T cells in Brown Norway rats. These data suggest that the distinct CD4/CD8 T cell ratio between these two rat strains is the consequence of differential interactions of the TCR/CD8 coreceptor complex with the respective MHC class I haplotypes during selection in the thymus.
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Affiliation(s)
- J G Damoiseaux
- Department of Internal Medicine, Section Immunology, University Maastricht, The Netherlands.
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Damoiseaux JGMC, Cautain B, Bernard I, Mas M, van Breda Vriesman PJC, Druet P, Fournié G, Saoudi A. A Dominant Role for the Thymus and MHC Genes in Determining the Peripheral CD4/CD8 T Cell Ratio in the Rat. The Journal of Immunology 1999. [DOI: 10.4049/jimmunol.163.6.2983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
During their development, immature CD4CD8 double positive thymocytes become committed to either the CD4 or CD8 lineage. The final size of the peripheral CD4 and CD8 T cell compartments depends on thymic output and on the differential survival and proliferation of the respective T cell subsets in the periphery. Our results reveal that the development of the distinct peripheral CD4/CD8 T cell ratio between Lewis and Brown Norway rats originates in the thymus and, as shown by the use of radiation bone marrow chimeras, is determined by selection on radio-resistant stromal cells. Furthermore, this difference is strictly correlated with the MHC haplotype and is the result of a reduction in the absolute number of CD8 T cells in Brown Norway rats. These data suggest that the distinct CD4/CD8 T cell ratio between these two rat strains is the consequence of differential interactions of the TCR/CD8 coreceptor complex with the respective MHC class I haplotypes during selection in the thymus.
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Affiliation(s)
- Jan G. M. C. Damoiseaux
- *Department of Internal Medicine, Section Immunology, University Maastricht, Maastricht, The Netherlands, and
| | - Bastien Cautain
- †Institut National de la Santé et de la Recherche Médicale U28, Hôpital Purpan, Place du Dr Baylac, Toulouse, France
| | - Isabelle Bernard
- †Institut National de la Santé et de la Recherche Médicale U28, Hôpital Purpan, Place du Dr Baylac, Toulouse, France
| | - Magali Mas
- †Institut National de la Santé et de la Recherche Médicale U28, Hôpital Purpan, Place du Dr Baylac, Toulouse, France
| | | | - Philippe Druet
- †Institut National de la Santé et de la Recherche Médicale U28, Hôpital Purpan, Place du Dr Baylac, Toulouse, France
| | - Gilbert Fournié
- †Institut National de la Santé et de la Recherche Médicale U28, Hôpital Purpan, Place du Dr Baylac, Toulouse, France
| | - Abdelhadi Saoudi
- †Institut National de la Santé et de la Recherche Médicale U28, Hôpital Purpan, Place du Dr Baylac, Toulouse, France
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Saoudi A, Bernard I, Hoedemaekers A, Cautain B, Martinez K, Druet P, De Baets M, Guéry JC. Experimental autoimmune myasthenia gravis may occur in the context of a polarized Th1- or Th2-type immune response in rats. J Immunol 1999; 162:7189-97. [PMID: 10358165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Experimental autoimmune myasthenia gravis (EAMG) is a T cell-dependent, Ab-mediated autoimmune disease induced in rats by a single immunization with acetylcholine receptor (AChR). Although polarized Th1 responses have been shown to be crucial for the development of mouse EAMG, the role of Th cell subsets in rat EAMG is not well established. In the present work we show that while the incidence and severity of EAMG are similar in Lewis (LEW) and Brown-Norway (BN) rats, strong differences are revealed in the immune response generated. Ag-specific lymph node cells from LEW rats produced higher amounts of IL-2 and IFN-gamma than BN lymph node cells, but expressed less IL-4 mRNA. IgG1 and IgG2b anti-AChR isotype predominated in BN and LEW rats, respectively, confirming the dichotomy of the immune response observed between the two strains. Furthermore, although IL-12 administration or IFN-gamma neutralization strongly influenced the Th1/Th2 balance in BN rats, it did not affect the disease outcome. These data demonstrate that a Th1-dominated immune response is not necessarily associated with disease severity in EAMG, not only in rats with disparate MHC haplotype but also in the same rat strain, and suggest that in a situation where complement-fixing Ab can be generated as a consequence of either Th1- or Th2-mediated T cell help, deviation of the immune response will not be an adequate strategy to prevent this Ab-mediated autoimmune disease.
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Affiliation(s)
- A Saoudi
- Institut National de la Santé et de la Recherche Médicale, Unit 28, Université Paul Sabatier, Hôpital Purpan, Toulouse, France. abdelhadi@
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Saoudi A, Bernard I, Hoedemaekers A, Cautain B, Martinez K, Druet P, De Baets M, Guéry JC. Experimental Autoimmune Myasthenia Gravis May Occur in the Context of a Polarized Th1- or Th2-Type Immune Response in Rats. The Journal of Immunology 1999. [DOI: 10.4049/jimmunol.162.12.7189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Experimental autoimmune myasthenia gravis (EAMG) is a T cell-dependent, Ab-mediated autoimmune disease induced in rats by a single immunization with acetylcholine receptor (AChR). Although polarized Th1 responses have been shown to be crucial for the development of mouse EAMG, the role of Th cell subsets in rat EAMG is not well established. In the present work we show that while the incidence and severity of EAMG are similar in Lewis (LEW) and Brown-Norway (BN) rats, strong differences are revealed in the immune response generated. Ag-specific lymph node cells from LEW rats produced higher amounts of IL-2 and IFN-γ than BN lymph node cells, but expressed less IL-4 mRNA. IgG1 and IgG2b anti-AChR isotype predominated in BN and LEW rats, respectively, confirming the dichotomy of the immune response observed between the two strains. Furthermore, although IL-12 administration or IFN-γ neutralization strongly influenced the Th1/Th2 balance in BN rats, it did not affect the disease outcome. These data demonstrate that a Th1-dominated immune response is not necessarily associated with disease severity in EAMG, not only in rats with disparate MHC haplotype but also in the same rat strain, and suggest that in a situation where complement-fixing Ab can be generated as a consequence of either Th1- or Th2-mediated T cell help, deviation of the immune response will not be an adequate strategy to prevent this Ab-mediated autoimmune disease.
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Affiliation(s)
- Abdelhadi Saoudi
- *Institut National de la Santé et de la Recherche Médicale, Unit 28, Institut Fédératif de Recherche 30, and Université Paul Sabatier, Hôpital Purpan, Toulouse, France; Departments of
| | - Isabelle Bernard
- *Institut National de la Santé et de la Recherche Médicale, Unit 28, Institut Fédératif de Recherche 30, and Université Paul Sabatier, Hôpital Purpan, Toulouse, France; Departments of
| | | | - Bastien Cautain
- *Institut National de la Santé et de la Recherche Médicale, Unit 28, Institut Fédératif de Recherche 30, and Université Paul Sabatier, Hôpital Purpan, Toulouse, France; Departments of
| | - Karen Martinez
- §Unité de Neurobiologie Moléculaire, Institut Pasteur, Paris, France
| | - Philippe Druet
- *Institut National de la Santé et de la Recherche Médicale, Unit 28, Institut Fédératif de Recherche 30, and Université Paul Sabatier, Hôpital Purpan, Toulouse, France; Departments of
| | - Marc De Baets
- ‡Neurology, University of Maastricht, Maastricht, The Netherlands; and
| | - Jean-Charles Guéry
- *Institut National de la Santé et de la Recherche Médicale, Unit 28, Institut Fédératif de Recherche 30, and Université Paul Sabatier, Hôpital Purpan, Toulouse, France; Departments of
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Cautain B, Damoiseaux J, Bernard I, Fournié E, van Breda Vriesman P, Druet P, Saoudi A. Non-MHC determined resistance of Brown-Norway rats to develop experimental allergic encephalomyelitis is mediated by the endogenous production of transforming growth factor-beta. Transplant Proc 1999; 31:1602-3. [PMID: 10331018 DOI: 10.1016/s0041-1345(99)00054-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- B Cautain
- Institut National de la Santé et de la Recherche Médicale (INSERM U28), Toulouse, France
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Saoudi A, Bernard I, Hoedemaekers A, Cautain B, Martinez K, Druet P, De Baets M, Guéry JC. Polarization toward the T-helper(Th)1 type immune response is not required for rat experimental autoimmune myasthenia gravis. Transplant Proc 1999; 31:1604-5. [PMID: 10331019 DOI: 10.1016/s0041-1345(99)00055-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- A Saoudi
- Institut National de la Santé et de la Recherche Médicale (INSERM U28), Toulouse, France
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Bernard I, Foucras G, Cautain B, van der Meide PH, Druet P, Guéry JC, Saoudi JC. Flow cytometric analysis of intracellular interferon-gamma synthesis in rat CD4 T cells. Eur Cytokine Netw 1998; 9:613-8. [PMID: 9889405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
To date the techniques used to analyse cytokine expression by rat T cells do not give information about the simultaneous production of different cytokines from individual cells. Recently, a method for analysing the intracellular production of cytokines at the single cell level using flow cytometry has been developed. It is well established that the most critical requirement for successful intracellular cytokine staining is the availability of appropriate antibodies. In rat, it is possible to stain for intracellular IL-4 and IL-10 (Th2 cytokines) using the commercially available antibodies but not for Th1 cytokines. In the present work, we show that DB1, a mouse anti-rat IFN-gamma monoclonal antibody, could be used for intracytoplasmic staining of IFN-gamma producing rat CD4 T cells. The specificity of the staining was confirmed using a molar excess of unlabelled antibodies or recombinant cytokine. Finally, intracellular staining for IFN-gamma correlates with cytokine production in culture supernatant as evaluated by ELISA analysis.
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Affiliation(s)
- I Bernard
- INSERM U. 28, place du Dr.-Baylac, 31059 Toulouse Cedex, France
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