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Cottignies-Calamarte A, He F, Zhu A, Real F, Bomsel M. Protocol to detect infectious SARS-CoV-2 at low levels using in situ hybridization techniques. STAR Protoc 2023; 4:102593. [PMID: 37738115 PMCID: PMC10520661 DOI: 10.1016/j.xpro.2023.102593] [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: 06/01/2023] [Revised: 07/21/2023] [Accepted: 09/05/2023] [Indexed: 09/24/2023] Open
Abstract
Low and persistent levels of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA/protein/virus can be detected in clinical samples months after infection, possibly related to the emergence of SARS-CoV-2 variants or development of long coronavirus disease. Here, we present a protocol to detect low levels of viral RNA together with protein using flow cytometry and microscopy. We describe steps for cell infection with SARS-CoV-2 and quantification by fluorescence in situ hybridization-flow cytometry. We then detail procedures for visualization using immunolabeling and RNAscope. This approach is directly applicable to clinical samples. For complete details on the use and execution of this protocol, please refer to Zhu et al. (2022).1.
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Affiliation(s)
- Andréa Cottignies-Calamarte
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Université de Paris Cité, Paris, France; Institut Cochin, INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France
| | - Feifan He
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Université de Paris Cité, Paris, France; Institut Cochin, INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France
| | - Aiwei Zhu
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Université de Paris Cité, Paris, France; Institut Cochin, INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France
| | - Fernando Real
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Université de Paris Cité, Paris, France; Institut Cochin, INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France
| | - Morgane Bomsel
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Université de Paris Cité, Paris, France; Institut Cochin, INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France.
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2
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Marin C, Cerdà-Cuéllar M, Rosario I, Lorenzo-Rebenaque L, Vega S, Manzanares A, Padilla D, Real F, Rodríguez-Ponce E, Acosta-Hernández B. Impact of genetic diversity and antibiotic-resistance of Salmonella isolated from feral cats: One Health approach. Comp Immunol Microbiol Infect Dis 2023; 101:102043. [PMID: 37690182 DOI: 10.1016/j.cimid.2023.102043] [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: 04/05/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023]
Abstract
Free-living cats usually live in colonies in urban areas, especially close to parks and neighbourhoods where people feed them without any sanitary control. This can pose a human, animal and environmental health concern due to the close contact between uncontrolled colonies, the population and other domestic and/or wild animals. Thus, this study aimed to assess the genetic diversity and antimicrobial resistance (AMR) among Salmonella enterica subsp. enterica strains isolated from feral cats in a previous epidemiological study in the Gran Canaria island (Spain). A total of nineteen Salmonella isolates were obtained from November 2018 to January 2019 in a Salmonella epidemiological study in feral cats. All isolates obtained were genotyped by pulsed-field gel electrophoresis (PGFE) and were tested for antimicrobial susceptibility, in accordance with Decision 2013/652/EU. PFGE analysis revealed isolates clustering by serovar, with identical clones for serovars Bredeney and Grancanaria, while differing pulsotypes were observed for serovars Florida (88.89 % similarity) and Nima (83.23 % similarity). All but two isolates were resistant to at least one antimicrobial. The results obtained demonstrate that feral cats in the region investigated are a reservoir of Salmonella strains resistant to gentamicin (94.1 %) and of the critically important antimicrobial tigecycline (23.5 %). Hence, they could excrete AMR strains through their faeces and contaminate the environment, favoring the spread of such bacteria to cohabiting pets. Moreover, this widespread presence of AMR Salmonella clones across various serovars highlights the urgent need to implement efficient antimicrobial stewardship and control programs by the local governments due to the ongoing need to protect human and animal health under a One Health concept.
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Affiliation(s)
- C Marin
- Facultad de Veterinaria, Instituto de Ciencias Biomédicas, Universidad Cardenal Herrera-CEU, CEU Universities, Alfara del Patriarca, Spain.
| | - M Cerdà-Cuéllar
- Unitat mixta d'Investigació IRTA-UAB en Sanitat Animal. Centre de Recerca en Sanitat Animal (CReSA). Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia, Spain; IRTA. Programa de Sanitat Animal. Centre de Recerca en Sanitat Animal (CReSA). Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia, Spain
| | - I Rosario
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain; Instituto Universitario de Sanidad Animal (IUSA), Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
| | - L Lorenzo-Rebenaque
- Facultad de Veterinaria, Instituto de Ciencias Biomédicas, Universidad Cardenal Herrera-CEU, CEU Universities, Alfara del Patriarca, Spain
| | - S Vega
- Facultad de Veterinaria, Instituto de Ciencias Biomédicas, Universidad Cardenal Herrera-CEU, CEU Universities, Alfara del Patriarca, Spain
| | - A Manzanares
- Unitat mixta d'Investigació IRTA-UAB en Sanitat Animal. Centre de Recerca en Sanitat Animal (CReSA). Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia, Spain; IRTA. Programa de Sanitat Animal. Centre de Recerca en Sanitat Animal (CReSA). Campus de la Universitat Autònoma de Barcelona (UAB), Bellaterra, Catalonia, Spain
| | - D Padilla
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain; Instituto Universitario de Sanidad Animal (IUSA), Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
| | - F Real
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain; Instituto Universitario de Sanidad Animal (IUSA), Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
| | - E Rodríguez-Ponce
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
| | - B Acosta-Hernández
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain; Instituto Universitario de Sanidad Animal (IUSA), Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
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3
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Ramos-Sosa MJ, García-Álvarez N, Sanchez-Henao A, Padilla D, Sergent FS, Gago-Martínez A, Diogène J, Caballero MJ, Fernández A, Real F. Ciguatoxin-like toxicity distribution in flesh of amberjack (Seriola spp.) and dusky grouper (Epinephelus marginatus). Environ Res 2023; 228:115869. [PMID: 37044166 DOI: 10.1016/j.envres.2023.115869] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/03/2023] [Accepted: 04/08/2023] [Indexed: 05/16/2023]
Abstract
Ciguatoxins (CTXs) are marine neurotoxins that cause ciguatera poisoning (CP), mainly through the consumption of fish. The distribution of CTXs in fish is known to be unequal. Studies have shown that viscera accumulate more toxins than muscle, but little has been conducted on toxicity distribution in the flesh, which is the main edible part of fish, and the caudal muscle is also most commonly targeted for the monitoring of CTXs in the Canary Islands. At present, whether this sample is representative of the toxicity of an individual is undisclosed. This study aims to assess the distribution of CTXs in fish, considering different muscle samples, the liver, and gonads. To this end, tissues from four amberjacks (Seriola spp.) and four dusky groupers (Epinephelus marginatus), over 16.5 kg and captured in the Canary Islands, were analyzed by neuroblastoma-2a cell-based assay. Flesh samples were collected from the extraocular region (EM), head (HM), and different areas from the fillet (A-D). In the amberjack, the EM was the most toxic muscle (1.510 CTX1B Eq·g-1), followed by far for the caudal section of the fillet (D) (0.906 CTX1B Eq·g-1). In the dusky grouper flesh samples, D and EM showed the highest toxicity (0.279 and 0.273 CTX1B Eq·g-1). In both species, HM was one of the least toxic samples (0.421 and 0.166 CTX1B Eq·g-1). The liver stood out for its high CTX concentration (3.643 and 2.718 CTX1B Eq·g-1), as were the gonads (1.620 and 0.992 CTX1B Eq·g-1). According to these results, the caudal muscle next to the tail is a reliable part for use in determining the toxicity of fish flesh to guarantee its safe consumption. Additionally, the analysis of the liver and gonads could provide further information on doubtful specimens, and be used for CTX monitoring in areas with an unknown prevalence of ciguatera.
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Affiliation(s)
- María José Ramos-Sosa
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
| | - Natalia García-Álvarez
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain.
| | - Andres Sanchez-Henao
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
| | - Daniel Padilla
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
| | - Freddy Silva Sergent
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
| | - Ana Gago-Martínez
- Biomedical Research Center (CINBIO), Analytical and Food Chemistry Department, University of Vigo, Campus Universitario, 36310, Vigo, Spain
| | - Jorge Diogène
- Marine and Continental Waters Programme, Institut de Recerca I Tecnologies Agroalimentaires (IRTA), Ctra. Poble Nou, Km. 5.5, 43540, Sant Carles de La Ràpita, Spain
| | - María José Caballero
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
| | - Antonio Fernández
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
| | - Fernando Real
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416, Arucas, Spain
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Assinger A, Capron C, Real F, Bomsel M. Editorial: Platelet and megakaryocyte dysfunctions in infectious diseases. Front Immunol 2023; 14:1175200. [PMID: 37056755 PMCID: PMC10086536 DOI: 10.3389/fimmu.2023.1175200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Affiliation(s)
- Alice Assinger
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
- *Correspondence: Alice Assinger, ; Morgane Bomsel,
| | - Claude Capron
- Service d’Hématologie Hôpital Ambroise Paré (AP-HP), Boulogne-Billancourt, France
- Université de Versailles-St Quentin en Yvelines, Versailles, France
| | - Fernando Real
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris, France
- INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France
| | - Morgane Bomsel
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris, France
- INSERM U1016, CNRS UMR8104, Université de Paris Cité, Paris, France
- *Correspondence: Alice Assinger, ; Morgane Bomsel,
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Chauhan J, Cecon E, Labani N, Gbahou F, Real F, Bomsel M, Dubey KD, Das R, Dam J, Jockers R, Sen S. Development of indolealkylamine derivatives as potential multi-target agents for COVID-19 treatment. Eur J Med Chem 2023; 249:115152. [PMID: 36724633 PMCID: PMC9882955 DOI: 10.1016/j.ejmech.2023.115152] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 01/18/2023] [Accepted: 01/23/2023] [Indexed: 02/03/2023]
Abstract
COVID-19 is a complex disease with short-term and long-term respiratory, inflammatory and neurological symptoms that are triggered by the infection with SARS-CoV-2. As many drugs targeting single targets showed only limited effectiveness against COVID-19, here, we aimed to explore a multi-target strategy. We synthesized a focused compound library based on C2-substituted indolealkylamines (tryptamines and 5-hydroxytryptamines) with activity for three potential COVID-19-related proteins, namely melatonin receptors, calmodulin and human angiotensin converting enzyme 2 (hACE2). Two molecules from the library, 5e and h, exhibit affinities in the high nanomolar range for melatonin receptors, inhibit the calmodulin-dependent calmodulin kinase II activity and the interaction of the SARS-CoV-2 Spike protein with hACE2 at micromolar concentrations. Both compounds inhibit SARS-CoV-2 entry into host cells and 5h decreases SARS-CoV-2 replication and MPro enzyme activity in addition. In conclusion, we provide a proof-of-concept for the successful design of multi-target compounds based on the tryptamine scaffold. Optimization of these preliminary hit compounds could potentially provide drug candidates to treat COVID-19 and other coronavirus diseases.
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Affiliation(s)
- Jyoti Chauhan
- Department of Chemistry, School of Natural Sciences, Dadri, Chithera, Gautam Buddha Nagar, UP, 201314, India
| | - Erika Cecon
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France
| | - Nedjma Labani
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France
| | - Florence Gbahou
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France
| | - Fernando Real
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France
| | - Morgane Bomsel
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Dadri, Chithera, Gautam Buddha Nagar, UP, 201314, India
| | - Ranajit Das
- Department of Chemistry, School of Natural Sciences, Dadri, Chithera, Gautam Buddha Nagar, UP, 201314, India
| | - Julie Dam
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France
| | - Ralf Jockers
- Université Paris Cité, Institut Cochin, INSERM, CNRS, F-75014, PARIS, France.
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Dadri, Chithera, Gautam Buddha Nagar, UP, 201314, India.
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6
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Real F, Zhu A, Huang B, Belmellat A, Sennepin A, Vogl T, Ransy C, Revol M, Arrigucci R, Lombès A, Roth J, Gennaro ML, Bouillaud F, Cristofari S, Bomsel M. S100A8-mediated metabolic adaptation controls HIV-1 persistence in macrophages in vivo. Nat Commun 2022; 13:5956. [PMID: 36220814 PMCID: PMC9553955 DOI: 10.1038/s41467-022-33401-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 09/16/2022] [Indexed: 11/23/2022] Open
Abstract
HIV-1 eradication is hindered by viral persistence in cell reservoirs, established not only in circulatory CD4+T-cells but also in tissue-resident macrophages. The nature of macrophage reservoirs and mechanisms of persistence despite combined anti-retroviral therapy (cART) remain unclear. Using genital mucosa from cART-suppressed HIV-1-infected individuals, we evaluated the implication of macrophage immunometabolic pathways in HIV-1 persistence. We demonstrate that ex vivo, macrophage tissue reservoirs contain transcriptionally active HIV-1 and viral particles accumulated in virus-containing compartments, and harbor an inflammatory IL-1R+S100A8+MMP7+M4-phenotype prone to glycolysis. Reactivation of infectious virus production and release from these reservoirs in vitro are induced by the alarmin S100A8, an endogenous factor produced by M4-macrophages and implicated in “sterile” inflammation. This process metabolically depends on glycolysis. Altogether, inflammatory M4-macrophages form a major tissue reservoir of replication-competent HIV-1, which reactivate viral production upon autocrine/paracrine S100A8-mediated glycolytic stimulation. This HIV-1 persistence pathway needs to be targeted in future HIV eradication strategies. HIV-1 eradication is hindered by viral persistence in different cell reservoirs, including circulatory CD4+ T-cells and tissue-resident macrophages. Here, by analyzing male genital mucosa from cART-suppressed HIV1-infected individuals, Real et al. show that M4 macrophages represent the major macrophage HIV-1 reservoir in this tissue. These macrophages have an inflammatory IL1R+S100A8+MMP7+M4-phenotype, and contain transcriptionally active HIV-1, which reactivate infectious virus production from viral latency in response to autocrine/paracrine S100A8-mediated glycolysis.
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Affiliation(s)
- Fernando Real
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université Paris Cité, 75014, Paris, France.,CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Aiwei Zhu
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université Paris Cité, 75014, Paris, France.,CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Boxin Huang
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université Paris Cité, 75014, Paris, France.,CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Ania Belmellat
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université Paris Cité, 75014, Paris, France.,CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Alexis Sennepin
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université Paris Cité, 75014, Paris, France.,CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Thomas Vogl
- Institute of Immunology and Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany
| | - Céline Ransy
- CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Marc Revol
- Plastic, Reconstructive and Aesthetic Surgery Department, Saint Louis Hospital, Paris, France
| | - Riccardo Arrigucci
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Anne Lombès
- CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Johannes Roth
- Institute of Immunology and Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany
| | - Maria Laura Gennaro
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Frédéric Bouillaud
- CNRS, UMR8104, 75014, Paris, France.,Inserm, U1016, Institut Cochin, 75014, Paris, France
| | - Sarra Cristofari
- Plastic, Reconstructive and Aesthetic Surgery Department, Saint Louis Hospital, Paris, France
| | - Morgane Bomsel
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université Paris Cité, 75014, Paris, France. .,CNRS, UMR8104, 75014, Paris, France. .,Inserm, U1016, Institut Cochin, 75014, Paris, France.
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Ruiz MJ, Siracusano G, Cottignies-Calamarte A, Tudor D, Real F, Zhu A, Pastori C, Capron C, Rosenberg AR, Temperton N, Cantoni D, Liao H, Ternette N, Moine P, Godement M, Geri G, Chiche JD, Annane D, Cramer Bordé E, Lopalco L, Bomsel M. Persistent but dysfunctional mucosal SARS-CoV-2-specific IgA and low lung IL-1β associate with COVID-19 fatal outcome: A cross-sectional analysis. Front Immunol 2022; 13:842468. [PMID: 36248831 PMCID: PMC9560774 DOI: 10.3389/fimmu.2022.842468] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 07/19/2022] [Indexed: 11/17/2022] Open
Abstract
The role of the mucosal pulmonary antibody response in coronavirus disease 2019 (COVID-19) outcome remains unclear. Here, we found that in bronchoalveolar lavage (BAL) samples from 48 patients with severe COVID-19-infected with the ancestral Wuhan virus, mucosal IgG and IgA specific for S1, receptor-binding domain (RBD), S2, and nucleocapsid protein (NP) emerged in BAL containing viruses early in infection and persist after virus elimination, with more IgA than IgG for all antigens tested. Furthermore, spike-IgA and spike-IgG immune complexes were detected in BAL, especially when the lung virus has been cleared. BAL IgG and IgA recognized the four main RBD variants. BAL neutralizing titers were higher early in COVID-19 when virus replicates in the lung than later in infection after viral clearance. Patients with fatal COVID-19, in contrast to survivors, developed higher levels of mucosal spike-specific IgA than IgG but lost neutralizing activities over time and had reduced IL-1β in the lung. Altogether, mucosal spike and NP-specific IgG and S1-specific IgA persisting after lung severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) clearance and low pulmonary IL-1β correlate with COVID-19 fatal outcome. Thus, mucosal SARS-CoV-2-specific antibodies may have adverse functions in addition to protective neutralization.
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Affiliation(s)
- Maria Julia Ruiz
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Gabriel Siracusano
- Immunobiology of HIV Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Andréa Cottignies-Calamarte
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Daniela Tudor
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Fernando Real
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Aiwei Zhu
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Claudia Pastori
- Immunobiology of HIV Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Claude Capron
- AP-HP, Hôpital Ambroise Paré, Service d'Hématologie, Boulogne-Billancourt, France
| | - Arielle R. Rosenberg
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
- AP-HP, Hôpital Cochin, Service de Virologie, Paris, France
| | - Nigel Temperton
- Viral Pseudotype Unit, Medway School of Pharmacy, The Universities of Kent and Greenwich at Medway, Chatham, United Kingdom
| | - Diego Cantoni
- Viral Pseudotype Unit, Medway School of Pharmacy, The Universities of Kent and Greenwich at Medway, Chatham, United Kingdom
| | - Hanqing Liao
- Centre for Cellular and Molecular Physiology, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Nicola Ternette
- Centre for Cellular and Molecular Physiology, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Pierre Moine
- FHU SEPSIS (Saclay and Paris Seine Nord Endeavour to PerSonalize Interventions for Sepsis), RHU RECORDS (Rapid rEcognition of CORticosteroiD resistant or sensitive Sepsis), Department of Intensive Care, Hôpital Raymond Poincaré (APHP), Laboratory of Infection and Inflammation – U1173, School of Medicine Simone Veil, University Versailles Saint Quentin – University Paris Saclay, INSERM, Garches, France
| | - Mathieu Godement
- FHU SEPSIS (Saclay and Paris Seine Nord Endeavour to PerSonalize Interventions for Sepsis), RHU RECORDS (Rapid rEcognition of CORticosteroiD resistant or sensitive Sepsis), Department of Intensive Care, Hôpital Raymond Poincaré (APHP), Laboratory of Infection and Inflammation – U1173, School of Medicine Simone Veil, University Versailles Saint Quentin – University Paris Saclay, INSERM, Garches, France
| | - Guillaume Geri
- AP-HP, Hôpital Ambroise Paré, Service de Réanimation, Boulogne-Billancourt, France
- Université de Versailles-St Quentin en Yvelines, Versailles, France
| | | | - Djillali Annane
- FHU SEPSIS (Saclay and Paris Seine Nord Endeavour to PerSonalize Interventions for Sepsis), RHU RECORDS (Rapid rEcognition of CORticosteroiD resistant or sensitive Sepsis), Department of Intensive Care, Hôpital Raymond Poincaré (APHP), Laboratory of Infection and Inflammation – U1173, School of Medicine Simone Veil, University Versailles Saint Quentin – University Paris Saclay, INSERM, Garches, France
| | | | - Lucia Lopalco
- Immunobiology of HIV Unit, San Raffaele Scientific Institute, Milan, Italy
| | - Morgane Bomsel
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Paris-Descartes University, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
- *Correspondence: Morgane Bomsel,
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Padilla D, Acosta Hernández B, Ramos Vivas J, Déniz S, Rosario I, Martín Barrasa JL, Henao AS, Silva Sergent F, Ramos Sosa MJ, García Álvarez N, Real F. Kinetics of the invasion of a non-phagocytic fish cell line, RTG-2 by Yersinia ruckeri serotype O1 biotype 1. Acta Vet Hung 2022. [PMID: 35895532 DOI: 10.1556/004.2022.00013] [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: 02/23/2022] [Accepted: 05/17/2022] [Indexed: 02/18/2024]
Abstract
Yersiniosis, caused by the fish pathogen Yersinia ruckeri, is a serious bacterial septicaemia affecting mainly salmonids worldwide. The acute infection may result in high mortality without apparent external disease signs, while the chronic one causes moderate to considerable mortality. Survivors of yersiniosis outbreaks become carriers. Y. ruckeri is able to adhere to, and to invade, phagocytic and non-phagocytic fish cells by using unknown molecular mechanisms. The aim of this study was to describe the kinetics of cell invasion by Y. ruckeri serotype O1 biotype 1 in a fish cell line (RTG-2) originating from rainbow trout gonads. The efficiency of invasion by Y. ruckeri was found to be temperature dependent, having a maximum at 20 °C. The bacterium was able to survive up to 96 h postinfection. The incubation of the cells at 4 °C and the pre-incubation of the bacteria with sugars or heat-inactivated antiserum significantly decreased the efficiency of invasion or even completely prevented the invasion of RTG-2 cells. These findings indicate that Y. ruckeri is capable of adhering to, entering and surviving within non-phagocytic cells, and that the intracellular environment may constitute a suitable niche for this pathogen that can favour the spread of infection and/or the maintenance of a carrier state of fish.
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Affiliation(s)
- Daniel Padilla
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - Begoña Acosta Hernández
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - José Ramos Vivas
- 2 Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain
- 3 Department of Project Management, Universidad Internacional Iberoamericana, Campeche, 24560, Mexico
| | - Soraya Déniz
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - Inmaculada Rosario
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - José Luís Martín Barrasa
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
- 4 Experimental Animal Facility, Research Unit, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - Andrés Sánchez Henao
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - Freddy Silva Sergent
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - María José Ramos Sosa
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - Natalia García Álvarez
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
| | - Fernando Real
- 1 Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA), Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, 35412, Spain
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Rosario I, Calcines MI, Rodríguez-Ponce E, Déniz S, Real F, Vega S, Marin C, Padilla D, Martín JL, Acosta-Hernández B. Salmonella enterica subsp. enterica serotypes isolated for the first time in feral cats: the impact on public health. Comp Immunol Microbiol Infect Dis 2022; 84:101792. [DOI: 10.1016/j.cimid.2022.101792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 02/22/2022] [Accepted: 03/06/2022] [Indexed: 11/25/2022]
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Zhu A, Real F, Zhu J, Greffe S, de Truchis P, Rouveix E, Bomsel M, Capron C. HIV-Sheltering Platelets From Immunological Non-Responders Induce a Dysfunctional Glycolytic CD4+ T-Cell Profile. Front Immunol 2022; 12:781923. [PMID: 35222352 PMCID: PMC8873581 DOI: 10.3389/fimmu.2021.781923] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/13/2021] [Indexed: 11/24/2022] Open
Abstract
Immunological non-responders (InRs) are HIV-infected individuals in whom the administration of combination antiretroviral therapy (cART), although successful in suppressing viral replication, cannot properly reconstitute patient circulating CD4+ T-cell number to immunocompetent levels. The causes for this immunological failure remain elusive, and no therapeutic strategy is available to restore a proper CD4+ T-cell immune response in these individuals. We have recently demonstrated that platelets harboring infectious HIV are a hallmark of InR, and we now report on a causal connection between HIV-containing platelets and T-cell dysfunctions. We show here that in vivo, platelet–T-cell conjugates are more frequent among CD4+ T cells in InRs displaying HIV-containing platelets (<350 CD4+ T cells/μl blood for >1 year) as compared with healthy donors or immunological responders (IRs; >350 CD4+ T cells/μl). This contact between platelet containing HIV and T cell in the conjugates is not infectious for CD4+ T cells, as coculture of platelets from InRs containing HIV with healthy donor CD4+ T cells fails to propagate infection to CD4+ T cells. In contrast, when macrophages are the target of platelets containing HIV from InRs, macrophages become infected. Differential transcriptomic analyses comparing InR and IR CD4+ T cells reveal an upregulation of genes involved in both aerobic and anaerobic glycolysis in CD4+ T cells from InR vs. IR individuals. Accordingly, InR platelets containing HIV induce a dysfunctional increase in glycolysis-mediated energy production in CD4+ T cells as compared with T cells cocultured with IR platelets devoid of virus. In contrast, macrophage metabolism is not affected by platelet contact. Altogether, this brief report demonstrates a direct causal link between presence of HIV in platelets and T-cell dysfunctions typical of InR, contributing to devise a platelet-targeted therapy for improving immune reconstitution in these individuals.
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Affiliation(s)
- Aiwei Zhu
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
- Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France
| | - Fernando Real
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
- Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France
| | - Jaja Zhu
- Service d’Hématologie, Hôpital Ambroise Paré (AP-HP), Boulogne-Billancourt, France
- Université Versailles Saint Quentin-en-Yvelines (UVSQ), Université Paris Saclay, Versailles, France
| | - Ségolène Greffe
- Service d’Hématologie, Hôpital Ambroise Paré (AP-HP), Boulogne-Billancourt, France
| | - Pierre de Truchis
- Université Versailles Saint Quentin-en-Yvelines (UVSQ), Université Paris Saclay, Versailles, France
- Service d’Infectiologie, Hôpital Raymond Poincaré (AP-HP), Garches, France
| | - Elisabeth Rouveix
- Service d’Hématologie, Hôpital Ambroise Paré (AP-HP), Boulogne-Billancourt, France
- Université Versailles Saint Quentin-en-Yvelines (UVSQ), Université Paris Saclay, Versailles, France
| | - Morgane Bomsel
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1016, Paris, France
- Centre National de la Recherche Scientifique (CNRS) UMR8104, Paris, France
- *Correspondence: Morgane Bomsel, ; Claude Capron,
| | - Claude Capron
- Service d’Hématologie, Hôpital Ambroise Paré (AP-HP), Boulogne-Billancourt, France
- Université Versailles Saint Quentin-en-Yvelines (UVSQ), Université Paris Saclay, Versailles, France
- *Correspondence: Morgane Bomsel, ; Claude Capron,
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Real F, Ganor Y, Bomsel M. Experimental Models to Study HIV Latency Reversal from Male Genital Myeloid Cells. Methods Mol Biol 2022; 2407:189-204. [PMID: 34985666 DOI: 10.1007/978-1-0716-1871-4_14] [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: 06/14/2023]
Abstract
HIV reservoirs in tissues are poorly understood and their establishment largely depends on the nature of tissues that interact with the virus. In this chapter, we will describe in vitro and ex vivo models of human urethral mucosal macrophages used in the investigation of the establishment and maintenance of tissue HIV reservoirs. In addition, we will describe how macrophage latent HIV infection was assessed in these models by reverting a nonproductive state of infection back into a productive state. Consequently, infectious particles are released to the macrophage extracellular milieu and detected by adapted viral outgrowth assays. Altogether, these approaches provide invaluable tools for the investigation on tissue-specific pathways that HIV-1 employs to reach host cells and form reservoirs in the genital mucosa. These models will contribute to the development of an efficient and targeted prophylaxis against HIV and of a HIV cure.
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Affiliation(s)
- Fernando Real
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Yonatan Ganor
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Morgane Bomsel
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France.
- INSERM U1016, Paris, France.
- CNRS UMR8104, Paris, France.
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Cecon E, Izabelle C, Poder SL, Real F, Zhu A, Tu L, Ghigna MR, Klonjkowski B, Bomsel M, Jockers R, Dam J. Therapeutic potential of melatonin and melatonergic drugs on K18-hACE2 mice infected with SARS-CoV-2. J Pineal Res 2022; 72:e12772. [PMID: 34586649 PMCID: PMC8646885 DOI: 10.1111/jpi.12772] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/01/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022]
Abstract
As the COVID-19 pandemic grows, several therapeutic candidates are being tested or undergoing clinical trials. Although prophylactic vaccination against SARS-CoV-2 infection has been shown to be effective, no definitive treatment exists to date in the event of infection. The rapid spread of infection by SARS-CoV-2 and its variants fully warrants the continued evaluation of drug treatments for COVID-19, especially in the context of repurposing of already available and safe drugs. Here, we explored the therapeutic potential of melatonin and melatonergic compounds in attenuating COVID-19 pathogenesis in mice expressing human ACE2 receptor (K18-hACE2), strongly susceptible to SARS-CoV-2 infection. Daily administration of melatonin, agomelatine, or ramelteon delays the occurrence of severe clinical outcome with improvement of survival, especially with high melatonin dose. Although no changes in most lung inflammatory cytokines are observed, treatment with melatonergic compounds limits the exacerbated local lung production of type I and type III interferons, which is likely associated with the observed improved symptoms in treated mice. The promising results from this preclinical study should encourage studies examining the benefits of repurposing melatonergic drugs to treat COVID-19 and related diseases in humans.
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Affiliation(s)
- Erika Cecon
- Institut CochinINSERMCNRSUniversité de ParisParisFrance
| | | | - Sophie Le Poder
- UMR VirologieINRAEANSESÉcole Nationale Vétérinaire d'AlfortMaisons‐AlfortFrance
| | - Fernando Real
- Institut CochinINSERMCNRSUniversité de ParisParisFrance
| | - Aiwei Zhu
- Institut CochinINSERMCNRSUniversité de ParisParisFrance
| | - Ly Tu
- School of Medicine Le Kremlin‐BicêtreHôpital Marie Lannelongue, INSERM UMRS 999Université Paris‐SaclayLe Plessis‐RobinsonFrance
| | - Maria Rosa Ghigna
- School of Medicine Le Kremlin‐BicêtreHôpital Marie Lannelongue, INSERM UMRS 999Université Paris‐SaclayLe Plessis‐RobinsonFrance
| | - Bernard Klonjkowski
- UMR VirologieINRAEANSESÉcole Nationale Vétérinaire d'AlfortMaisons‐AlfortFrance
| | | | - Ralf Jockers
- Institut CochinINSERMCNRSUniversité de ParisParisFrance
| | - Julie Dam
- Institut CochinINSERMCNRSUniversité de ParisParisFrance
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Real F, Zhu A, Bomsel M. [A free rider: Infectious HIV hidden in the platelets of infected but virally suppressed patients fuels tissue reservoirs]. Med Sci (Paris) 2021; 37:226-230. [PMID: 33739268 DOI: 10.1051/medsci/2021006] [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: 11/14/2022] Open
Affiliation(s)
- Fernando Real
- Laboratoire Entrée muqueuse du VIH et immunité muqueuse, Département 3I, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France. - CNRS UMR8104, 75014 Paris, France. - Inserm U1016, Institut Cochin, 22 rue Méchain, 75014 Paris, France
| | - Aiwei Zhu
- Laboratoire Entrée muqueuse du VIH et immunité muqueuse, Département 3I, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France. - CNRS UMR8104, 75014 Paris, France. - Inserm U1016, Institut Cochin, 22 rue Méchain, 75014 Paris, France
| | - Morgane Bomsel
- Laboratoire Entrée muqueuse du VIH et immunité muqueuse, Département 3I, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France. - CNRS UMR8104, 75014 Paris, France. - Inserm U1016, Institut Cochin, 22 rue Méchain, 75014 Paris, France
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Sanchez-Henao A, García-Álvarez N, Padilla D, Ramos-Sosa M, Silva Sergent F, Fernández A, Estévez P, Gago-Martínez A, Diogène J, Real F. Accumulation of C-CTX1 in Muscle Tissue of Goldfish ( Carassius auratus) by Dietary Experience. Animals (Basel) 2021; 11:ani11010242. [PMID: 33477985 PMCID: PMC7835822 DOI: 10.3390/ani11010242] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 11/02/2020] [Revised: 12/06/2020] [Accepted: 12/11/2020] [Indexed: 12/22/2022] Open
Abstract
Ciguatoxins (CTXs) are produced by dinoflagellates usually present in tropical and subtropical waters. These toxins are bioaccumulated and transformed in fish causing ciguatera fish poisoning (CFP) in humans. Few trials have been performed to understand how CTXs are incorporated into fish. This study developed an experimental model of goldfish (Carassius auratus) fed flesh contaminated with Caribbean ciguatoxin (C-CTX1). Fourteen goldfish were fed 0.014 ng CTX1B (Eq. g-1 of body weight) daily, and control goldfish received non-toxic flesh. CTX presence was determined by a cell-based assay on days 1, 8, 15, 29, 36, 43, and 84. Toxicity was detected in muscle from the second sampling and then seemed to stabilize at ~0.03 ng CTX1B Eq. g-1. After two weeks, all experimental goldfish developed lethargy and loss of brightness, but only two of them displayed erratic swimming and jerking movements near the sixth sampling. One of these fish had its toxic diet replaced by commercial food for 60 more days; the fish showed recovery signs within the first weeks and no CTX activity was detected. These results indicate that C-CTX1 could accumulate in goldfish muscle tissue and produce toxic symptoms, but also remarked on the detoxification and recovery capacity of this species.
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Affiliation(s)
- Andres Sanchez-Henao
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
| | - Natalia García-Álvarez
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
| | - Daniel Padilla
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
| | - María Ramos-Sosa
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
| | - Freddy Silva Sergent
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
| | - Antonio Fernández
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
| | - Pablo Estévez
- Department of Analytical and Food Chemistry, Campus Universitario de Vigo, University of Vigo, 36310 Vigo, Spain
| | - Ana Gago-Martínez
- Department of Analytical and Food Chemistry, Campus Universitario de Vigo, University of Vigo, 36310 Vigo, Spain
| | - Jorge Diogène
- Marine and Continental Waters Environmental Monitoring, IRTA, Ctra. Poble Nou, km 5.5, 43540 Sant Carles de la Ràpita, Spain
| | - Fernando Real
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Spain
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Gutiérrez-Falcón A, Padilla D, Ramos Sosa MJ, Martín Barrasa JL, Acosta-Hernández B, Sánchez Henao A, García Álvarez N, Rosario Medina I, Déniz S, Real F. Characterization in vitro of new bacterial strains showing potentially probiotic crossed effect against vibriosis in relevant fish species for marine aquaculture. Journal of Applied Animal Research 2020. [DOI: 10.1080/09712119.2020.1844714] [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] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ana Gutiérrez-Falcón
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Daniel Padilla
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - María José Ramos Sosa
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - José Luis Martín Barrasa
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Begoña Acosta-Hernández
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Andrés Sánchez Henao
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Natalia García Álvarez
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Inmaculada Rosario Medina
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Soraya Déniz
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
| | - Fernando Real
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA). Universidad de Las Palmas de Gran Canaria (ULPGC), Arucas, Spain
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Gauna DC, Grande E, Duran MC, Lainez N, Duran I, Carrato C, Lobato T, Andrada E, Gonzalez RG, Astudillo L, Estevez SV, Gonzalez BM, Carbonero IG, Quintela ML, Saez M, Billalabeitia EG, Arnau MG, Font A, Malats N, Real F. 759P Towards personalized medicine in MIBC: Immunohistochemistry-based taxonomical classification and outcome in patients treated with adjuvant chemotherapy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Sanchez-Henao A, García-Álvarez N, Silva Sergent F, Estévez P, Gago-Martínez A, Martín F, Ramos-Sosa M, Fernández A, Diogène J, Real F. Presence of CTXs in moray eels and dusky groupers in the marine environment of the Canary Islands. Aquat Toxicol 2020; 221:105427. [PMID: 32044545 DOI: 10.1016/j.aquatox.2020.105427] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/21/2020] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Local population frequently consumes moray eels and dusky groupers from the Canary Islands. These species are top predators and the interactions between them include predation but also, in some cases, collaborative hunting. These fish are well known to cause ciguatera (CFP) outbreaks in several marine areas such as Japan, Hawaii, French Polynesia and Caribe. Groupers have been involved in CFP events in the Canary Islands, however, moray eels have not yet been well studied in this regard. The present research seeks to describe the finding of a black moray in the stomach of a positive dusky grouper during its necropsy, and to clarify the implication of groupers and moray eels in the food webs, accumulating CTXs in the Canarian environment. The study also updates statistics on the presence of toxic groupers in this archipelago. For these purposes, 248 grouper samples from the CFP official control in the Canary Islands (2018-2019) were analysed and 36 moray eels (5 species) were collected under the EuroCigua project and one was obtained during a dusky grouper necropsy. All samples were analysed with the Neuro-2a cell-based assay (CBA) to evidence CTX-like toxicity. Regarding the necropsied grouper and the moray eel found in its stomach content, the LCMS/MS method allowed the identification and quantification of CCTX1 in both fish at similar levels while none of the P-CTXs for which standards were available were detected. Among groupers, 25.4 % displayed CTX-like toxicity with differences between islands. For moray eels 38.9 % showed toxicity, involving 4 species. Black moray exhibited a high proportion of positives (9/12) and a positive correlation was found between CTX-like toxicity quantification and the black moray weight. Regarding the grouper, and the moray eel found in its stomach, the LCMS/MS method allowed the identification and quantification of C-CTX1 in both fish at similar levels. This found suggests a trophic interaction between these species and their role in maintaining CTXs in the Canary waters where local population commonly demand those species for consumption. The island of El Hierro stands out above all the other Canary Islands with the concerning percentage of positive grouper samples and the high CTX toxicity levels obtained in moray eel specimens analysed in this marine area. This is the first report of CTX-like toxicity in flesh of moray eels fished in the Canary archipelago and the confirmation of the presence of C-CTX1 by LCMS/MS in a black moray from this marine area.
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Affiliation(s)
- Andres Sanchez-Henao
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Natalia García-Álvarez
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain.
| | - Freddy Silva Sergent
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Pablo Estévez
- University of Vigo, Department of Analytical and Food Chemistry, Campus Universitario de Vigo, 36310 Vigo, Spain
| | - Ana Gago-Martínez
- University of Vigo, Department of Analytical and Food Chemistry, Campus Universitario de Vigo, 36310 Vigo, Spain; European Union Reference Laboratory for Marine Biotoxins, CITEXVI, Campus Universitario de Vigo, 36310 Vigo, Spain
| | - Francisco Martín
- Canary Health Service, Directorate-General for Public Health, Canary Islands, Spain
| | - María Ramos-Sosa
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Antonio Fernández
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Jorge Diogène
- Marine and Continental Waters Environmental Monitoring, IRTA, Ctra. Poble Nou, km 5.5, 43540 Sant Carles de la Ràpita, Spain
| | - Fernando Real
- Division of Fish Health and Pathology, University Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
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Real F, Capron C, Sennepin A, Arrigucci R, Zhu A, Sannier G, Zheng J, Xu L, Massé JM, Greffe S, Cazabat M, Donoso M, Delobel P, Izopet J, Eugenin E, Gennaro ML, Rouveix E, Cramer Bordé E, Bomsel M. Platelets from HIV-infected individuals on antiretroviral drug therapy with poor CD4+ T cell recovery can harbor replication-competent HIV despite viral suppression. Sci Transl Med 2020; 12:12/535/eaat6263. [DOI: 10.1126/scitranslmed.aat6263] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/23/2019] [Accepted: 10/01/2019] [Indexed: 12/24/2022]
Abstract
In addition to hemostasis, human platelets have several immune functions and interact with infectious pathogens including HIV in vitro. Here, we report that platelets from HIV-infected individuals on combined antiretroviral drug therapy (ART) with low blood CD4+ T cell counts (<350 cells/μl) contained replication-competent HIV despite viral suppression. In vitro, human platelets harboring HIV propagated the virus to macrophages, a process that could be prevented with the biologic abciximab, an anti–integrin αIIb/β3 Fab. Furthermore, in our cohort, 88% of HIV-infected individuals on ART with viral suppression and with platelets containing HIV were poor immunological responders with CD4+ T cell counts remaining below <350 cells/μl for more than one year. Our study suggests that platelets may be transient carriers of HIV and may provide an alternative pathway for HIV dissemination in HIV-infected individuals on ART with viral suppression and poor CD4+ T cell recovery.
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Affiliation(s)
- Fernando Real
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | | | - Alexis Sennepin
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Riccardo Arrigucci
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Aiwei Zhu
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Gérémy Sannier
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Jonathan Zheng
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Lin Xu
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
| | - Jean-Marc Massé
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
- Electron Microscopy Platform, Institut Cochin, Université de Paris, Paris, France
| | - Ségolène Greffe
- Department of Internal Medicine, Hôpital Ambroise Paré, Boulogne, France
| | - Michelle Cazabat
- CHU de Toulouse, Hôpital Purpan, Laboratoire de Virologie, Toulouse, France
| | - Maribel Donoso
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch (UTMB), Galveston, TX, USA
| | - Pierre Delobel
- INSERM U1043, Toulouse, France
- Université Toulouse III Paul-Sabatier, Faculté de Médecine Toulouse-Purpan, Toulouse, France
- CHU de Toulouse, Hôpital Purpan, Service des Maladies Infectieuses et Tropicales, Toulouse, France
| | - Jacques Izopet
- CHU de Toulouse, Hôpital Purpan, Laboratoire de Virologie, Toulouse, France
- INSERM U1043, Toulouse, France
- Université Toulouse III Paul-Sabatier, Faculté de Médecine Toulouse-Purpan, Toulouse, France
| | - Eliseo Eugenin
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch (UTMB), Galveston, TX, USA
| | - Maria Laura Gennaro
- Public Health Research Institute, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Elisabeth Rouveix
- Department of Internal Medicine, Hôpital Ambroise Paré, Boulogne, France
| | - Elisabeth Cramer Bordé
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- Hôpital Ambroise Paré, Boulogne-Billancourt, France
| | - Morgane Bomsel
- Mucosal Entry of HIV and Mucosal Immunity, Institut Cochin, Université de Paris, Paris, France
- INSERM U1016, Paris, France
- CNRS UMR8104, Paris, France
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Real F, Sennepin A, Ganor Y, Schmitt A, Bomsel M. Live Imaging of HIV-1 Transfer across T Cell Virological Synapse to Epithelial Cells that Promotes Stromal Macrophage Infection. Cell Rep 2019; 23:1794-1805. [PMID: 29742434 DOI: 10.1016/j.celrep.2018.04.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 10/06/2017] [Revised: 02/20/2018] [Accepted: 04/04/2018] [Indexed: 12/20/2022] Open
Abstract
During sexual intercourse, HIV-1 crosses epithelial barriers composing the genital mucosa, a poorly understood feature that requires an HIV-1-infected cell vectoring efficient mucosal HIV-1 entry. Therefore, urethral mucosa comprising a polarized epithelium and a stroma composed of fibroblasts and macrophages were reconstructed in vitro. Using this system, we demonstrate by live imaging that efficient HIV-1 transmission to stromal macrophages depends on cell-mediated transfer of the virus through virological synapses formed between HIV-1-infected CD4+ T cells and the epithelial cell mucosal surface. We visualized HIV-1 translocation through mucosal epithelial cells via transcytosis in regions where virological synapses occurred. In turn, interleukin-13 is secreted and HIV-1 targets macrophages, which develop a latent state of infection reversed by lipopolysaccharide (LPS) activation. The live observation of virological synapse formation reported herein is key in the design of vaccines and antiretroviral therapies aimed at blocking HIV-1 access to cellular reservoirs in genital mucosa.
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Affiliation(s)
- Fernando Real
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, 3I Department, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France; CNRS, UMR8104, 75014 Paris, France; INSERM, U1016, Institut Cochin, 75014 Paris, France
| | - Alexis Sennepin
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, 3I Department, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France; CNRS, UMR8104, 75014 Paris, France; INSERM, U1016, Institut Cochin, 75014 Paris, France
| | - Yonatan Ganor
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, 3I Department, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France; CNRS, UMR8104, 75014 Paris, France; INSERM, U1016, Institut Cochin, 75014 Paris, France
| | - Alain Schmitt
- Electron Microscopy Facility, Cochin Institute, Paris Descartes University, Sorbonne Paris Cité, 75014 Paris, France; CNRS, UMR8104, 75014 Paris, France; INSERM, U1016, Institut Cochin, 75014 Paris, France
| | - Morgane Bomsel
- Laboratory of Mucosal Entry of HIV and Mucosal Immunity, 3I Department, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France; CNRS, UMR8104, 75014 Paris, France; INSERM, U1016, Institut Cochin, 75014 Paris, France.
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de Sales-Ribeiro C, Sanchez-Henao A, García-Álvarez N, Real F, Rivero MA, Fernández A, Caballero MJ. First description of spontaneous granulomatous aerocystitis by Phoma herbarum in a wild greater amberjack (Seriola dumerili Risso, 1810). J Fish Dis 2019; 42:1321-1325. [PMID: 31197853 DOI: 10.1111/jfd.13045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/18/2019] [Accepted: 05/21/2019] [Indexed: 06/09/2023]
Affiliation(s)
- Carolina de Sales-Ribeiro
- Fish Pathology Unit, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Division of Histology and Animal Pathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Andres Sanchez-Henao
- Division of Infectious Diseases and Ichthiopathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Natalia García-Álvarez
- Division of Infectious Diseases and Ichthiopathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Fernando Real
- Division of Infectious Diseases and Ichthiopathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Miguel A Rivero
- Division of Histology and Animal Pathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - Antonio Fernández
- Division of Histology and Animal Pathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
| | - María José Caballero
- Fish Pathology Unit, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
- Division of Histology and Animal Pathology, Veterinary School, Institute for Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, Arucas, Spain
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Sanchez-Henao JA, García-Álvarez N, Fernández A, Saavedra P, Silva Sergent F, Padilla D, Acosta-Hernández B, Martel Suárez M, Diogène J, Real F. Predictive score and probability of CTX-like toxicity in fish samples from the official control of ciguatera in the Canary Islands. Sci Total Environ 2019; 673:576-584. [PMID: 30999098 DOI: 10.1016/j.scitotenv.2019.03.445] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/28/2019] [Accepted: 03/28/2019] [Indexed: 06/09/2023]
Abstract
This research identifies factors associated with the contamination by ciguatoxins (CTXs) in a population of fish and proposes a predictive score of the presence of CTX-like toxicity in amberjack samples from the official control program of ciguatera in the Canary Islands of the Directorate-General (DG) Fisheries (Canary Government). Out of the 970 samples of fish studied, 177 (18.2%) samples showed CTX-like toxicity. The fish were classified according to the species, amberjack (Seriola dumerili and S. rivoliana) (n = 793), dusky grouper (Epinephelus marginatus) (n = 145) and wahoo (Acanthocybium solandri) (n = 32). The data were separated by species category and statistically examined, resulting in 137 (17.3%) amberjack and 39 (26.9%) grouper samples showing CTX-like toxicity; regarding wahoo species, only 1 toxic sample (3.1%) was found. According to fishing location the contamination rates suggested grouping the islands in four clusters; namely: {El Hierro: HI; La Gomera: LG; La Palma: LP}, {Gran Canaria: GC; Tenerife: TF}, {Fuerteventura: FU} and {Lanzarote: LZ}. For the amberjack species, the multivariate logistic regression showed the factors that maintained independent association with the outcome, which were the warm season (OR = 3.617; 95% CI = 1.249-10.474), the weight (per kg, 1.102; 95% CI = 1.069-1.136) and the island of fish catching. A prediction score was obtained for the probability of contamination by CTX in amberjack fish samples. The area under de curve (AUC) obtained using the validation data was 0.747 (95% CI = 0.662-0.833). Regarding grouper species, the island of fishing was the only factor that showed significant differences associated with the presence of CTX-like toxicity. We provide herein data for a better management and prediction of ciguatera in the Canary Islands, suggesting a review of the minimum limits of fish weight established by the Canary Government for the control program.
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Affiliation(s)
- J Andres Sanchez-Henao
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Natalia García-Álvarez
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain.
| | - Antonio Fernández
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Pedro Saavedra
- Department of Mathematics, University of Las Palmas de Gran Canaria, Canary Islands, Spain
| | - Freddy Silva Sergent
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Daniel Padilla
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Begoña Acosta-Hernández
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Manuela Martel Suárez
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
| | - Jorge Diogène
- Marine and Continental Waters Environmental Monitoring, IRTA, Ctra. Poble Nou, km 5.5, 43540 Sant Carles de la Ràpita, Spain
| | - Fernando Real
- Division of Fish Health and Pathology, Institute of Animal Health and Food Safety (IUSA), University of Las Palmas de Gran Canaria, 35416 Arucas, Las Palmas, Spain
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Pessoa CC, Reis LC, Ramos-Sanchez EM, Orikaza CM, Cortez C, de Castro Levatti EV, Badaró ACB, Yamamoto JUDS, D’Almeida V, Goto H, Mortara RA, Real F. ATP6V0d2 controls Leishmania parasitophorous vacuole biogenesis via cholesterol homeostasis. PLoS Pathog 2019; 15:e1007834. [PMID: 31199856 PMCID: PMC6594656 DOI: 10.1371/journal.ppat.1007834] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 10/12/2018] [Revised: 06/26/2019] [Accepted: 05/13/2019] [Indexed: 02/07/2023] Open
Abstract
V-ATPases are part of the membrane components of pathogen-containing vacuoles, although their function in intracellular infection remains elusive. In addition to organelle acidification, V-ATPases are alternatively implicated in membrane fusion and anti-inflammatory functions controlled by ATP6V0d2, the d subunit variant of the V-ATPase complex. Therefore, we evaluated the role of ATP6V0d2 in the biogenesis of pathogen-containing vacuoles using ATP6V0d2 knock-down macrophages infected with the protozoan parasite Leishmania amazonensis. These parasites survive within IFNγ/LPS-activated inflammatory macrophages, multiplying in large/fusogenic parasitophorous vacuoles (PVs) and inducing ATP6V0d2 upregulation. ATP6V0d2 knock-down decreased macrophage cholesterol levels and inhibited PV enlargement without interfering with parasite multiplication. However, parasites required ATP6V0d2 to resist the influx of oxidized low-density lipoprotein (ox-LDL)-derived cholesterol, which restored PV enlargement in ATP6V0d2 knock-down macrophages by replenishing macrophage cholesterol pools. Thus, we reveal parasite-mediated subversion of host V-ATPase function toward cholesterol retention, which is required for establishing an inflammation-resistant intracellular parasite niche.
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Affiliation(s)
- Carina Carraro Pessoa
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Luiza Campos Reis
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brasil
| | - Eduardo Milton Ramos-Sanchez
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brasil
| | - Cristina Mary Orikaza
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Cristian Cortez
- Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Santiago de Chile, Chile
| | | | - Ana Carolina Benites Badaró
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | | | - Vânia D’Almeida
- Departamento de Psicobiologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Hiro Goto
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brasil
- Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil
| | - Renato Arruda Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
| | - Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brasil
- * E-mail:
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Affiliation(s)
- Fernando Real
- Laboratoire Entrée Muqueuse du VIH et Immunité Muqueuse, Département Infection Immunité et Inflammation, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 22, rue Méchain, 75014 Paris, France - CNRS UMR8104, 75014 Paris, France - Inserm U1016, Institut Cochin, 22, rue Méchain, 75014 Paris, France
| | - Morgane Bomsel
- Laboratoire Entrée Muqueuse du VIH et Immunité Muqueuse, Département Infection Immunité et Inflammation, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 22, rue Méchain, 75014 Paris, France - CNRS UMR8104, 75014 Paris, France - Inserm U1016, Institut Cochin, 22, rue Méchain, 75014 Paris, France
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Florentino PTV, Real F, Orikaza CM, da Cunha JPC, Vitorino FNL, Cordero EM, Sobreira TJP, Mortara RA. A Carbohydrate Moiety of Secreted Stage-Specific Glycoprotein 4 Participates in Host Cell Invasion by Trypanosoma cruzi Extracellular Amastigotes. Front Microbiol 2018; 9:693. [PMID: 29692765 PMCID: PMC5903068 DOI: 10.3389/fmicb.2018.00693] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 02/16/2018] [Accepted: 03/23/2018] [Indexed: 11/23/2022] Open
Abstract
Trypanosoma cruzi is the etiologic agent of Chagas' disease. It is known that amastigotes derived from trypomastigotes in the extracellular milieu are infective in vitro and in vivo. Extracellular amastigotes (EAs) have a stage-specific surface antigen called Ssp-4, a GPI-anchored glycoprotein that is secreted by the parasites. By immunoprecipitation with the Ssp-4-specific monoclonal antibodies (mAb) 2C2 and 1D9, we isolated the glycoprotein from EAs. By mass spectrometry, we identified the core protein of Ssp-4 and evaluated mRNA expression and the presence of Ssp-4 carbohydrate epitopes recognized by mAb1D9. We demonstrated that the carbohydrate epitope recognized by mAb1D9 could promote host cell invasion by EAs. Although infectious EAs express lower amounts of Ssp-4 compared with less-infectious EAs (at the mRNA and protein levels), it is the glycosylation of Ssp-4 (identified by mAb1D9 staining only in infectious strains and recognized by galectin-3 on host cells) that is the determinant of EA invasion of host cells. Furthermore, Ssp-4 is secreted by EAs, either free or associated with parasite vesicles, and can participate in host-cell interactions. The results presented here describe the possible role of a carbohydrate moiety of T. cruzi surface glycoproteins in host cell invasion by EA forms, highlighting the potential of these moieties as therapeutic and vaccine targets for the treatment of Chagas' disease.
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Affiliation(s)
- Pilar T. V. Florentino
- Department of Microbiology, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | | | - Cristina M. Orikaza
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Julia P. C. da Cunha
- Special Laboratory of Cell Cycle, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, Brazil
| | - Francisca N. L. Vitorino
- Special Laboratory of Cell Cycle, Center of Toxins, Immune-Response and Cell Signaling (CeTICS), Butantan Institute, São Paulo, Brazil
| | - Esteban M. Cordero
- Department of Microbiology, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
- Facultad de Ciencias, Centro de Genómica y Bioinformática, Universidad Mayor, Santiago, Chile
| | | | - Renato A. Mortara
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Sennepin A, Real F, Duvivier M, Ganor Y, Henry S, Damotte D, Revol M, Cristofari S, Bomsel M. The Human Penis Is a Genuine Immunological Effector Site. Front Immunol 2017; 8:1732. [PMID: 29312291 PMCID: PMC5735067 DOI: 10.3389/fimmu.2017.01732] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 08/11/2017] [Accepted: 11/23/2017] [Indexed: 12/28/2022] Open
Abstract
The human penis is a main portal of entry for numerous pathogens, and vaccines able to control resulting infections locally are highly desirable. However, in contrast to the gastrointestinal or vaginal mucosa, the penile immune system and mechanisms inducing a penile immune response remain elusive. In this descriptive study, using multiparametric flow cytometry and immunohistochemistry, we characterized mucosal immune cells such as B, T, and natural killer (NK) cells from the urethra, fossa, and glans of human adult penile tissues. We show that memory B lymphocytes and CD138+ plasma cells are detected in all penile compartments. CD4+ and CD8+ T lymphocytes reside in the epithelium and lamina propria of the penile regions and have mostly a resting memory phenotype. All penile regions contain CD56dim NK cells surface expressing the natural cytotoxicity receptor NKp44 and the antibody-dependent cell cytotoxicity receptor CD16. These cells are also able to spontaneously secrete pro- and anti-inflammatory cytokines, such as IL-17 and IL-22. Finally, CCR10 is the main homing receptor detected in these penile cells although, together with CCR3, CCR6, and CCR9, their expression level differs between penile compartments. Unlike antigen-presenting cells which type differ between penile regions as we reported earlier, urethral, fossa, and glans content in immune B, T, and NK cells is comparable. However, median values per each analysis suggest that the glans, containing higher number and more activated NK cells together with higher number of terminally differentiate effector CD8+ T cells, is a superior effector site than the urethra and the fossa. Thus, the human penis is an immunologically active tissue containing the cellular machinery required to induce and produce a specific and effective response against mucosal pathogens. It can therefore be considered as a classic mucosal effector site, a feature that must be taken into account for the elaboration of efficient strategies, including vaccines, against sexually transmitted infections.
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Affiliation(s)
- Alexis Sennepin
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, INSERM, Paris, France.,CNRS, UMR8104, Paris, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Fernando Real
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, INSERM, Paris, France.,CNRS, UMR8104, Paris, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Marine Duvivier
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, INSERM, Paris, France.,CNRS, UMR8104, Paris, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Yonatan Ganor
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, INSERM, Paris, France.,CNRS, UMR8104, Paris, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Sonia Henry
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, INSERM, Paris, France.,CNRS, UMR8104, Paris, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Diane Damotte
- Anatomy and Pathological Cytology Service, GH Cochin-Saint Vincent de Paul, Paris, France
| | - Marc Revol
- Plastic Surgery Service, Saint Louis Hospital, Paris, France
| | | | - Morgane Bomsel
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, INSERM, Paris, France.,CNRS, UMR8104, Paris, France.,Paris Descartes University, Sorbonne Paris Cité, Paris, France
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Bomsel M, Real F, Capron C, Cramer E, Rouveix E. Platelets from HIV-infected cART-treated patients carry infectious viruses and predict poor immunological recovery. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30546-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Bomsel M, Ganor Y, Sennepin A, Dutertre C, Cristofari S, Capron C, Eugenin E, Revol M, Hosmalin A, Real F. Tissue macrophages are a major viral reservoir in male urethra of HIV-1-infected individuals under suppressive antiretroviral therapy. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30543-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Silva FA, Conde-Felipe M, Rosario I, Ferrer O, Real F, Déniz S, Acosta F, Padilla D, Acosta-Hernández B. Susceptibility ofMalassezia pachydermatisto aminoglycosides. Mycoses 2017; 60:796-799. [DOI: 10.1111/myc.12665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 06/18/2017] [Accepted: 07/16/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Freddy Alejandro Silva
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA); Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Magnolia Conde-Felipe
- Departamento de Patología Animal; Facultad de Veterinaria; Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Inmaculada Rosario
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA); Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Otilia Ferrer
- Departamento de Patología Animal; Facultad de Veterinaria; Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Fernando Real
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA); Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Soraya Déniz
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA); Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Félix Acosta
- Parque Científico Tecnológico Marino; Universidad de Las Palmas de Gran Canaria - Ctra.; Las Palmas Spain
| | - Daniel Padilla
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA); Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
| | - Begoña Acosta-Hernández
- Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA); Universidad de Las Palmas de Gran Canaria; Arucas Las Palmas Spain
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Ribeiro GM, Matsumoto CK, Real F, Teixeira D, Duarte RS, Mortara RA, Leão SC, de Souza Carvalho-Wodarz C. Increased survival and proliferation of the epidemic strain Mycobacterium abscessus subsp. massiliense CRM0019 in alveolar epithelial cells. BMC Microbiol 2017; 17:195. [PMID: 28903728 PMCID: PMC5598063 DOI: 10.1186/s12866-017-1102-7] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 09/05/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Outbreaks of infections caused by rapidly growing mycobacteria have been reported worldwide generally associated with medical procedures. Mycobacterium abscessus subsp. massiliense CRM0019 was obtained during an epidemic of postsurgical infections and was characterized by increased persistence in vivo. To better understand the successful survival strategies of this microorganism, we evaluated its infectivity and proliferation in macrophages (RAW and BMDM) and alveolar epithelial cells (A549). For that, we assessed the following parameters, for both M. abscessus CRM0019 as well as the reference strain M. abscessus ATCC 19977: internalization, intracellular survival for up 3 days, competence to subvert lysosome fusion and the intracellular survival after cell reinfection. RESULTS CRM0019 and ATCC 19977 strains showed the same internalization rate (approximately 30% after 6 h infection), in both A549 and RAW cells. However, colony forming units data showed that CRM0019 survived better in A549 cells than the ATCC 19977 strain. Phagosomal characteristics of CRM0019 showed the bacteria inside tight phagosomes in A549 cells, contrasting to the loosely phagosomal membrane in macrophages. This observation holds for the ATCC 19977 strain in both cell types. The competence to subvert lysosome fusion was assessed by acidification and acquisition of lysosomal protein. For M. abscessus strains the phagosomes were acidified in all cell lines; nevertheless, the acquisition of lysosomal protein was reduced by CRM0019 compared to the ATCC 19977 strain, in A549 cells. Conversely, in macrophages, both M. abscessus strains were located in mature phagosomes, however without bacterial death. Once recovered from macrophages M. abscessus could establish a new intracellular infection. Nevertheless, only CRM0019 showed a higher growth rate in A549, increasing nearly 10-fold after 48 and 72 h. CONCLUSION M. abscessus CRM0019 creates a protective and replicative niche in alveolar epithelial cells mainly by avoiding phagosome maturation. Once recovered from infected macrophages, CRM0019 remains infective and displays greater intracellular growth in A549 cells compared to the ATCC 19977 strain. This evasion strategy in alveolar epithelial cells may contribute to the long survival of the CRM0019 strain in the host and thus to the inefficacy of in vivo treatment.
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Affiliation(s)
- Giovanni Monteiro Ribeiro
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Cristianne Kayoko Matsumoto
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.,Laboratoire Entrée muqueuse du VIH et Immunité muqueuse, Department Infection, Immunité et Inflammation, Institut Cochin, Paris, France
| | - Daniela Teixeira
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Rafael Silva Duarte
- Laboratório de Micobactérias, Instituto de Microbiologia Professor Paulo de Góes, Cidade Universitária, Rio de Janeiro, Brazil
| | - Renato Arruda Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Sylvia Cardoso Leão
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Cristiane de Souza Carvalho-Wodarz
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil. .,Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarbrücken, Germany.
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Marrero EJ, Silva FA, Rosario I, Déniz S, Real F, Padilla D, Díaz EL, Acosta-Hernández B. Assessment of in vitro inhibitory activity of hydrogen peroxide on the growth of Malassezia pachydermatis and to compare its efficacy with commercial ear cleaners. Mycoses 2017; 60:645-650. [PMID: 28557001 DOI: 10.1111/myc.12637] [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: 03/02/2017] [Revised: 03/28/2017] [Accepted: 04/27/2017] [Indexed: 11/30/2022]
Abstract
Otitis caused by Malassezia pachydermatis is generally a common and recurrent disease in canine clinical pathology. The increased incidence of fungal resistant to antifungal in both humans and pets is a cause for concern and is associated with the indiscriminate use of antifungals. Finding the most effective disinfectants and antifungals has become essential. To evaluate the in vitro inhibitory activity of hydrogen peroxide on the growth of M. pachydermatis and compare its efficacy with commercial ear cleaners. The test for sensitivity to antimicrobials was carried out following the indications of the CLSI document M44-A2. The comparative results demonstrated that hydrogen peroxide 1.5% showed excellent results for growth inhibition of M. pachydermatis, followed by Epiotic® and MalAcetic® , the lowest result was for Otoclean® .
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Affiliation(s)
- Edrei Javier Marrero
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Freddy Alejandro Silva
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain.,Instituto Universitario de Sanidad Animal (IUSA), University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Inmaculada Rosario
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain.,Instituto Universitario de Sanidad Animal (IUSA), University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Soraya Déniz
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain.,Instituto Universitario de Sanidad Animal (IUSA), University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Fernando Real
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain.,Instituto Universitario de Sanidad Animal (IUSA), University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Daniel Padilla
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain.,Instituto Universitario de Sanidad Animal (IUSA), University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Esther Licia Díaz
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Begoña Acosta-Hernández
- Facultad de Veterinaria, Departamento de Patología Animal, University of Las Palmas de Gran Canaria, Las Palmas, Spain.,Instituto Universitario de Sanidad Animal (IUSA), University of Las Palmas de Gran Canaria, Las Palmas, Spain
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31
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dos Santos JC, Heinhuis B, Gomes RS, Damen MSMA, Real F, Mortara RA, Keating ST, Dinarello CA, Joosten LAB, Ribeiro-Dias F. Cytokines and microbicidal molecules regulated by IL-32 in THP-1-derived human macrophages infected with New World Leishmania species. PLoS Negl Trop Dis 2017; 11:e0005413. [PMID: 28241012 PMCID: PMC5344527 DOI: 10.1371/journal.pntd.0005413] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 03/09/2017] [Accepted: 02/15/2017] [Indexed: 01/08/2023] Open
Abstract
Background Interleukin-32 (IL-32) is expressed in lesions of patients with American Tegumentary Leishmaniasis (ATL), but its precise role in the disease remains unknown. Methodology/Principal findings In the present study, silencing and overexpression of IL-32 was performed in THP-1-derived macrophages infected with Leishmania (Viannia) braziliensis or L. (Leishmania) amazonensis to investigate the role of IL-32 in infection. We report that Leishmania species induces IL-32γ, and show that intracellular IL-32γ protein production is dependent on endogenous TNFα. Silencing or overexpression of IL-32 demonstrated that this cytokine is closely related to TNFα and IL-8. Remarkably, the infection index was augmented in the absence of IL-32 and decreased in cells overexpressing this cytokine. Mechanistically, these effects can be explained by nitric oxide cathelicidin and β-defensin 2 production regulated by IL-32. Conclusions Thus, endogenous IL-32 is a crucial cytokine involved in the host defense against Leishmania parasites. Leishmania (V.) braziliensis and L. (L.) amazonensis are protozoa that infect macrophages and cause cutaneous and mucosal leishmaniasis. Here we showed that both Leishmania species induce the production of IL-32γ in human macrophages. This intracellular and pro-inflammatory cytokine mediates the production of cytokines, especially TNFα and IL-8, in Leishmania-infected macrophages. Differential effects of IL-32γ on TNFα, IL-10 and IL-1Ra production after infection with distinct Leishmania species were detected, consistent with the concept that IL-32γ can differently influence the outcome of inflammatory process in leishmaniasis lesions. Moreover, IL-32γ upregulates microbicidal molecules, antimicrobial peptides, as well as NO, which are known as important factors in parasite control. These results underscore IL-32γ as a crucial cytokine to host defense against leishmaniasis.
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Affiliation(s)
- Jéssica Cristina dos Santos
- Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Bas Heinhuis
- Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rodrigo Saar Gomes
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Michelle S. M. A. Damen
- Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil
| | - Renato A. Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil
| | - Samuel T. Keating
- Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Charles A. Dinarello
- Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
- School of Medicine, Division of infectious diseases, University of Colorado Denver, Aurora, Colorado, United States of America
| | - Leo A. B. Joosten
- Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Fátima Ribeiro-Dias
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
- * E-mail:
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Rabaça AN, Arruda DC, Figueiredo CR, Massaoka MH, Farias CF, Tada DB, Maia VC, Silva Junior PI, Girola N, Real F, Mortara RA, Polonelli L, Travassos LR. AC-1001 H3 CDR peptide induces apoptosis and signs of autophagy in vitro and exhibits antimetastatic activity in a syngeneic melanoma model. FEBS Open Bio 2016; 6:885-901. [PMID: 27642552 PMCID: PMC5011487 DOI: 10.1002/2211-5463.12080] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 08/11/2015] [Revised: 04/20/2016] [Accepted: 04/21/2016] [Indexed: 12/19/2022] Open
Abstract
Antibody‐derived peptides modulate functions of the immune system and are a source of anti‐infective and antitumor substances. Recent studies have shown that they comprise amino acid sequences of immunoglobulin complementarity‐determining regions, but also fragments of constant regions. VH CDR3 of murine mAb AC‐1001 displays antimetastatic activities using B16F10‐Nex2 murine melanoma cells in a syngeneic model. The peptide was cytotoxic in vitro in murine and human melanoma cells inducing reactive oxygen species (ROS) and apoptosis by the intrinsic pathway. Signs of autophagy were also suggested by the increased expression of LC3/LC3II and Beclin 1 and by ultrastructural evidence. AC‐1001 H3 bound to both G‐ and F‐actin and inhibited tumor cell migration. These results are important evidence of the antitumor activity of Ig CDR‐derived peptides.
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Affiliation(s)
- Aline N Rabaça
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Denise C Arruda
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil; Núcleo Integrado de Biotecnologia Universidade de Mogi das Cruzes Brazil
| | - Carlos R Figueiredo
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Mariana H Massaoka
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Camyla F Farias
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Dayane B Tada
- Departamento de Ciência e Tecnologia Universidade Federal de São Paulo (UNIFESP) São José dos Campos Brazil
| | | | - Pedro I Silva Junior
- Laboratório Especial de Toxinologia Aplicada Instituto Butantan São Paulo Brazil
| | - Natalia Girola
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Fernando Real
- Departamento de Parasitologia Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Renato A Mortara
- Departamento de Parasitologia Universidade Federal de São Paulo (UNIFESP) Brazil
| | - Luciano Polonelli
- Microbiology and Virology Unit Department of Biomedical Biotechnological and Translational Sciences Universitá degli Studi di Parma Italy
| | - Luiz R Travassos
- Unidade de Oncologia Experimental (UNONEX) Universidade Federal de São Paulo (UNIFESP) Brazil
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Cortez C, Real F, Yoshida N. Lysosome biogenesis/scattering increases host cell susceptibility to invasion by Trypanosoma cruzi metacyclic forms and resistance to tissue culture trypomastigotes. Cell Microbiol 2015; 18:748-60. [PMID: 26572924 PMCID: PMC5064668 DOI: 10.1111/cmi.12548] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [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: 08/31/2015] [Revised: 10/08/2015] [Accepted: 11/11/2015] [Indexed: 01/11/2023]
Abstract
A fundamental question to be clarified concerning the host cell invasion by Trypanosoma cruzi is whether the insect‐borne and mammalian‐stage parasites use similar mechanisms for invasion. To address that question, we analysed the cell invasion capacity of metacyclic trypomastigotes (MT) and tissue culture trypomastigotes (TCT) under diverse conditions. Incubation of parasites for 1 h with HeLa cells in nutrient‐deprived medium, a condition that triggered lysosome biogenesis and scattering, increased MT invasion and reduced TCT entry into cells. Sucrose‐induced lysosome biogenesis increased HeLa cell susceptibility to MT and resistance to TCT. Treatment of cells with rapamycin, which inhibits mammalian target of rapamycin (mTOR), induced perinuclear lysosome accumulation and reduced MT invasion while augmenting TCT invasion. Metacylic trypomastigotes, but not TCT, induced mTOR dephosphorylation and the nuclear translocation of transcription factor EB (TFEB), a mTOR‐associated lysosome biogenesis regulator. Lysosome biogenesis/scattering was stimulated upon HeLa cell interaction with MT but not with TCT. Recently, internalized MT, but not TCT, were surrounded by colocalized lysosome marker LAMP2 and mTOR. The recombinant gp82 protein, the MT‐specific surface molecule that mediates invasion, induced mTOR dephosphorylation, nuclear TFEB translocation and lysosome biogenesis/scattering. Taken together, our data clearly indicate that MT invasion is mainly lysosome‐dependent, whereas TCT entry is predominantly lysosome‐independent.
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Affiliation(s)
- Cristian Cortez
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo, 669-6° andar, 04039-032, São Paulo, SP, Brazil
| | - Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo, 669-6° andar, 04039-032, São Paulo, SP, Brazil
| | - Nobuko Yoshida
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo, 669-6° andar, 04039-032, São Paulo, SP, Brazil
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Mason-lecomte A, Lopez de maturana E, Rava M, Marques M, Allory Y, Real F, Malats N. Mesure de l’association entre variants inflammatoires et pronostic des tumeurs de vessie non invasives du muscle : comparaison de méthodes statistiques classiques et innovantes. Prog Urol 2015; 25:761-2. [DOI: 10.1016/j.purol.2015.08.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Masson-Lecomte A, Seijas R, Marquez M, Lloreta J, Kogevinas M, Algaba F, Real F, Malats N, Allory Y. [Not Available]. Prog Urol 2015; 24:848-9. [PMID: 26461671 DOI: 10.1016/j.purol.2014.08.145] [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: 10/24/2022]
Affiliation(s)
| | | | | | - J Lloreta
- Hospital del Mar, IMAS, Barcelone, Espagne
| | - M Kogevinas
- Centre for Research in Environmental Epidemiology (CREAL), Barcelone, Espagne
| | - F Algaba
- Fundació Puigvert, Barcelone, Espagne
| | | | - N Malats
- Hospital del Mar, IMAS, Barcelone, Espagne
| | - Y Allory
- Hôpital Henri-Mondor, Créteil, France
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36
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Affiliation(s)
| | - P Maille
- Inserm U955, hôpital Henri-Mondor, Créteil, France
| | - P Soyeux
- Inserm U955, hôpital Henri-Mondor, Créteil, France
| | | | | | - Y Allory
- Hôpital Henri-Mondor, Créteil, France
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37
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El Aamri F, Real F, Acosta F, Bravo J, Román L, Déniz S, Padilla D. Differential innate immune response of European seabass (Dicentrarchus labrax) against Streptococcus iniae. Fish Shellfish Immunol 2015; 46:436-441. [PMID: 26099220 DOI: 10.1016/j.fsi.2015.05.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Revised: 05/19/2015] [Accepted: 05/24/2015] [Indexed: 06/04/2023]
Abstract
Streptococcus iniae is a Gram-positive bacteria that causes invasive infections with severe septicemia and meningitis, producing high economic losses in marine and continental aquaculture. Head kidney leukocytes of European sea bass (Dicentrarchus labrax) were used to measure the differential innate immune response upon infection with S. iniae. The complete inhibition in the production of intracellular superoxide radicals and total peroxidase content was observed in infected cells. This study also elucidates changes in the relative expression of some immune-related genes. Interleukin 1β, tumor necrosis factor-α and interleukin-6 reached a peak of expression at 4-8 h post-infection, subsequently decreasing significantly up to 48 h post-infection. However, interleukin-10 and Mx protein increased over time, reaching the pick of expression at 48 h post-infection, whereas caspase-3 showed down regulation until 48 h post-infection. The in vivo study of immune related genes show the same kinetics of mRNAs expression as in vitro experience. The proinflammatory cytokines mRNA transcription levels peaked at an earlier time in vivo than in vitro system. Our findings indicate that there is a direct relationship between the dissemination of bacteria and the resulting infection-associated inhibition of respiratory burst, apoptosis, and the pro- and anti-inflammatory gene expression profiles.
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Affiliation(s)
- F El Aamri
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain
| | - F Real
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain
| | - F Acosta
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain.
| | - J Bravo
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain
| | - L Román
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain
| | - S Déniz
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain
| | - D Padilla
- University of Las Palmas de Gran Canaria, 35413 Arucas, Spain
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El Aamri F, Remuzgo-Martínez S, Acosta F, Real F, Ramos-Vivas J, Icardo JM, Padilla D. Interactions of Streptococcus iniae with phagocytic cell line. Microbes Infect 2015; 17:258-65. [DOI: 10.1016/j.micinf.2014.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 05/20/2014] [Accepted: 06/06/2014] [Indexed: 10/25/2022]
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Román L, Acosta F, Padilla D, El Aamri F, Bravo J, Vega B, Rodriguez E, Vega J, Déniz S, Real F. The in vitro immunomodulatory effect of extracellular products (ECPs) of Vagococcus fluvialis L21 on European sea bass (Dicentrarchus labrax) leucocytes. Fish Shellfish Immunol 2015; 42:517-521. [PMID: 25485483 DOI: 10.1016/j.fsi.2014.11.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/29/2014] [Accepted: 11/30/2014] [Indexed: 06/04/2023]
Abstract
The immune associated genes, interleukin-1β (IL-1β), interleukin-6 (IL-6), interleukin 10 (IL-10), tumor necrosis factor-α (TNF-α), ciclo-oxigenase-2 (COX-2), and Mx gene were studied by real-time PCR in head-kidney leucocytes of sea bass after incubation with the extracellular products (ECPs) of the probiotic strain Vagococcus fluvialis L21 and polyinosinic:polycytidylic acid (POLY I:C), at different times (T1.5, T6, T12, T24, T48 and T72). In general, we can observe how pro-inflammatory cytokines IL-1β, TNF-α, IL-6 and COX-2 studied displayed a strong peak after stimulation with 1.5 h of ECPs of V. fluvialis L21, significant differences (P < 0.05) exist with other periods and with the POLY I: C at the same time. Similarly to the case of IL-10 also produced a statistically significant (P < 0.05) peak of expression on leukocytes that were stimulated with the ECPs of V. fluvialis L21. In the case of Mx gene expression, we note that in almost all sampling times there is an up-regulation of the Mx gene in leucocytes incubated with ECPs and POLY I:C compared to the control and Mx expression was higher in leucocytes that were stimulated with the ECPs of V. fluvialis for all times, except in T24. With these results we can consider that the ECPs of V. fluvialis L21 have a great power of stimulating the in vitro expression of immune-related genes and may even be useful as adjuvants for vaccine in aquaculture.
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Affiliation(s)
- L Román
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - F Acosta
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - D Padilla
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain.
| | - F El Aamri
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - J Bravo
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - B Vega
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - E Rodriguez
- Facultad de Veterinaria, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - J Vega
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - S Déniz
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
| | - F Real
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
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Padilla D, Acosta F, Ramos-Vivas J, Grasso V, Bravo J, El Aamri F, Real F. The pathogenHafnia alveiin veterinary medicine: a review. Journal of Applied Animal Research 2014. [DOI: 10.1080/09712119.2014.963086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Real F, Florentino PTV, Reis LC, Ramos-Sanchez EM, Veras PST, Goto H, Mortara RA. Cell-to-cell transfer of Leishmania amazonensis amastigotes is mediated by immunomodulatory LAMP-rich parasitophorous extrusions. Cell Microbiol 2014; 16:1549-64. [PMID: 24824158 PMCID: PMC4353215 DOI: 10.1111/cmi.12311] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [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: 07/22/2013] [Revised: 04/29/2014] [Accepted: 05/08/2014] [Indexed: 11/28/2022]
Abstract
The last step of Leishmania intracellular life cycle is the egress of amastigotes from the host cell and their uptake by adjacent cells. Using multidimensional live imaging of long-term-infected macrophage cultures we observed that Leishmania amazonensis amastigotes were transferred from cell to cell when the donor host macrophage delivers warning signs of imminent apoptosis. They were extruded from the macrophage within zeiotic structures (membrane blebs, an apoptotic feature) rich in phagolysosomal membrane components. The extrusions containing amastigotes were selectively internalized by vicinal macrophages and the rescued amastigotes remain viable in recipient macrophages. Host cell apoptosis induced by micro-irradiation of infected macrophage nuclei promoted amastigotes extrusion, which were rescued by non-irradiated vicinal macrophages. Using amastigotes isolated from LAMP1/LAMP2 knockout fibroblasts, we observed that the presence of these lysosomal components on amastigotes increases interleukin 10 production. Enclosed within host cell membranes, amastigotes can be transferred from cell to cell without full exposure to the extracellular milieu, what represents an important strategy developed by the parasite to evade host immune system.
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Affiliation(s)
- Fernando Real
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM-UNIFESP)São Paulo, Brasil
| | - Pilar Tavares Veras Florentino
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM-UNIFESP)São Paulo, Brasil
| | - Luiza Campos Reis
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São PauloSão Paulo, Brasil
| | - Eduardo M Ramos-Sanchez
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São PauloSão Paulo, Brasil
| | - Patricia Sampaio Tavares Veras
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais (INCT – DT), Fundação Oswaldo Cruz (FIOCRUZ)Bahia, Brasil
| | - Hiro Goto
- Laboratório de Soroepidemiologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São PauloSão Paulo, Brasil
- Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São PauloSão Paulo, Brasil
| | - Renato Arruda Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo (EPM-UNIFESP)São Paulo, Brasil
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Román L, Padilla D, Acosta F, Sorroza L, Fátima E, Déniz S, Grasso V, Bravo J, Real F. The effect of probioticEnterococcus gallinarumL-1 on the innate immune parameters of outstanding species to marine aquaculture. Journal of Applied Animal Research 2014. [DOI: 10.1080/09712119.2014.928635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gonçalves VM, D'Almeida V, Müller KB, Real F, Mortara RA. Lysosomal integral membrane protein 2 (LIMP-2) restricts the invasion of Trypanosoma cruzi extracellular amastigotes through the activity of the lysosomal enzyme β-glucocerebrosidase. Microbes Infect 2014; 16:253-60. [PMID: 24269705 DOI: 10.1016/j.micinf.2013.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 05/01/2013] [Revised: 08/20/2013] [Accepted: 11/07/2013] [Indexed: 10/26/2022]
Abstract
Lysosomal integral membrane protein 2 (LIMP-2, SCARB2) is directly linked to β-glucocerebrosidase enzyme (βGC) and mediates the transport of this enzyme from the Golgi complex to lysosomes. Active βGC cleaves the β-glycosidic linkages of glucosylceramide, an intermediate in the metabolism of sphingoglycolipids, generating ceramide. In this study we used mouse embryonic fibroblasts (MEFs) deficient for LIMP-2 and observed that these cells were more susceptible to infection by extracellular amastigotes of the protozoan parasite Trypanosoma cruzi when compared to wild-type (WT) fibroblasts. The absence of LIMP-2 decreases the activity of βGC measured in fibroblast extracts. Replacement of βGC enzyme in LIMP-2 deficient fibroblasts restores the infectivity indices to those of WT cells in T. cruzi invasion assays. Considering the participation of βGC in the production of host cell ceramide, we propose that T. cruzi extracellular amastigotes are more invasive to cells deficient in this membrane component. These results contribute to our understanding of the role of host cell lysosomal components in T. cruzi invasion.
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Affiliation(s)
- Viviane Martinelli Gonçalves
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Vânia D'Almeida
- Department of Psychobiology, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Karen Barbosa Müller
- Department of Pediatrics, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
| | - Fernando Real
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil.
| | - Renato Arruda Mortara
- Department of Microbiology, Immunology and Parasitology, Escola Paulista de Medicina, UNIFESP, São Paulo, Brazil
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Aamri FE, Caballero MJ, Real F, Acosta F, Déniz S, Román L, Padilla D. Streptococcus iniae in gilthead seabream (Sparus aurata, L.) and red porgy (Pagrus pagrus, L.): ultrastructural analysis. Vet Pathol 2014; 52:209-12. [PMID: 24496225 DOI: 10.1177/0300985814520638] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Streptococcosis caused by Streptococcus iniae has become one of the most serious marine and freshwater aquatic diseases in the past decade, causing large losses in farmed and wild fish worldwide. In this study, we performed an ultrastructural study of major lesions in gilthead seabream Sparus aurata and red porgy Pagrus pagrus experimentally infected with the S. iniae IUSA-1 strain, isolated in a natural outbreak in Spain in the mentioned species. The transmission electron micrographs revealed the resistance of this pathogen inside the phagosome, indicating that the macrophage may provide a significant bacterial reservoir for continuing infection, disease dissemination, and tissue injury by crossing the blood-brain barrier.
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Affiliation(s)
- F El Aamri
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
| | - M J Caballero
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
| | - F Real
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
| | - F Acosta
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
| | - S Déniz
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
| | - L Román
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
| | - D Padilla
- Institute of Animal Health (IUSA), University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
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Román L, Real F, Padilla D, El Aamri F, Déniz S, Grasso V, Acosta F. Cytokine expression in head-kidney leucocytes of European sea bass (Dicentrarchus labrax L.) after incubation with the probiotic Vagococcus fluvialis L-21. Fish Shellfish Immunol 2013; 35:1329-1332. [PMID: 23927874 DOI: 10.1016/j.fsi.2013.07.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 06/18/2013] [Accepted: 07/21/2013] [Indexed: 06/02/2023]
Abstract
The European sea bass (Dicentrarchus labrax L.) is one of the most extensively farmed marine fish in the Mediterranean sea. Under the high-density condition, common in aquaculture, the infectious diseases can cause significant economic losses. Probiotics are presented as an alternative to antibiotics for the control of aquaculture diseases. This study used real-time PCR to investigate in vitro the dynamic of expression of immune-related genes in sea bass after incubation with live and inactivated (heat and Uv-light) probiotic Vagoccus fluvialis L-21 at different times (T1, T12, T24, T48). The immune associated genes, interleukin-1 (IL-1), interleukin-6 (IL-6), interleukin 10 (IL-10), TumourTumour necrosis factor- (TNF-), ciclo-oxigenase-2 (COX-2), caspase-3 (Casp-3) and Mx were studied in head-kidney (HK) leucocytes of sea bass after incubation with the probiotic strain. Transcript of proinflammatory cytokines (IL-1, TNF-, COX-2) was highly up-regulated after 1 h of incubation with the probiotic strain V. fluvialis L-21. We found statistically significant difference in pick of expression of TNF-, after 1 h of incubation with Uv-light inactivated probiotic strain. The COX-2 expression was highly up-regulated at all times studied, with the exception of 12 and 24 h post incubation for the Uv-light inactivated bacteria. Transcript of IL-10 and Casp-3 showed the higher statistically significant differences of expression after 48 h post incubation with live bacteria. In the contrast, sea bass HK leucocytes expressed Mx at 12 and 48 h without statistically differences among treatments. Our results suggest that V. fluvialis L-21 is able to stimulate in vitro some immune-related genes associated with the early inflammatory response. Future studies in vivo are necessary to clarify this process in sea bass.
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Affiliation(s)
- L Román
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Trasmontaña s/n, 35413 Arucas, Spain
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Real F, Vidal RO, Carazzolle MF, Mondego JMC, Costa GGL, Herai RH, Würtele M, de Carvalho LM, Carmona e Ferreira R, Mortara RA, Barbiéri CL, Mieczkowski P, da Silveira JF, Briones MRDS, Pereira GAG, Bahia D. The genome sequence of Leishmania (Leishmania) amazonensis: functional annotation and extended analysis of gene models. DNA Res 2013; 20:567-81. [PMID: 23857904 PMCID: PMC3859324 DOI: 10.1093/dnares/dst031] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [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] [Indexed: 01/09/2023] Open
Abstract
We present the sequencing and annotation of the Leishmania (Leishmania) amazonensis genome, an etiological agent of human cutaneous leishmaniasis in the Amazon region of Brazil. L. (L.) amazonensis shares features with Leishmania (L.) mexicana but also exhibits unique characteristics regarding geographical distribution and clinical manifestations of cutaneous lesions (e.g. borderline disseminated cutaneous leishmaniasis). Predicted genes were scored for orthologous gene families and conserved domains in comparison with other human pathogenic Leishmania spp. Carboxypeptidase, aminotransferase, and 3′-nucleotidase genes and ATPase, thioredoxin, and chaperone-related domains were represented more abundantly in L. (L.) amazonensis and L. (L.) mexicana species. Phylogenetic analysis revealed that these two species share groups of amastin surface proteins unique to the genus that could be related to specific features of disease outcomes and host cell interactions. Additionally, we describe a hypothetical hybrid interactome of potentially secreted L. (L.) amazonensis proteins and host proteins under the assumption that parasite factors mimic their mammalian counterparts. The model predicts an interaction between an L. (L.) amazonensis heat-shock protein and mammalian Toll-like receptor 9, which is implicated in important immune responses such as cytokine and nitric oxide production. The analysis presented here represents valuable information for future studies of leishmaniasis pathogenicity and treatment.
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Affiliation(s)
- Fernando Real
- 1Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo - EPM/UNIFESP, Rua Botucatu 862, 6 andar, 04023-062 São Paulo, Brazil
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Bravo J, Real F, Padilla D, Olveira JG, Grasso V, Román L, Acosta F. Effect of lipopolysaccharides from Vibrio alginolyticus on the Mx gene expression and virus recovery from gilthead sea bream (Sparus aurata L.) experimentally infected with Nodavirus. Fish Shellfish Immunol 2013; 34:383-386. [PMID: 23092730 DOI: 10.1016/j.fsi.2012.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 09/26/2012] [Accepted: 10/07/2012] [Indexed: 06/01/2023]
Abstract
Infections with nodavirus affect a wild and farmed fish species throughout the world, mostly from the marine environment. The aim of this work was to determine the immune status of gilthead sea bream that comes as a result of a Nodavirus infection, induced by activation of the interferon response pathway by lipopolysaccharides from Vibrio alginolyticus and the expression of interferoninduced Mx protein in liver samples. The enhancement of Mx protein gene expression was detected in liver samples of experimentally nodavirus infected fish and, furthermore, the immunostimulant LPS of V. alginolyticus decreased almost three times the virus titration with respect to no-immunized or infected with nodavirus group of fish.
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Affiliation(s)
- J Bravo
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
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48
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Román L, Real F, Sorroza L, Padilla D, Acosta B, Grasso V, Bravo J, Acosta F. The in vitro effect of probiotic Vagococcus fluvialis on the innate immune parameters of Sparus aurata and Dicentrarchus labrax. Fish Shellfish Immunol 2012; 33:1071-1075. [PMID: 22864109 DOI: 10.1016/j.fsi.2012.06.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 06/25/2012] [Accepted: 06/29/2012] [Indexed: 06/01/2023]
Abstract
In this study we evaluated the effect of the probiotic Vagococcus fluvialis on the cellular immune unspecific system of two different fish species of great interest in aquaculture such as gilthead sea bream (Sparus aurata) and European sea bass (Dicentrarchus labrax). Leucocytes from head kidney of the two fish species were extracted and concentration adjusted to 10(7) cells ml(-1). Phagocytic and respiratory burst activity and the peroxidase content of leucocytes were observed 30 min after incubation with the probiotic Vagococcus fluvialis alive or inactivated with heat shock or UV-light at different concentrations of 10(7), 10(8), 10(9) cfu ml(-1) (final concentration 10(6), 10(7), 10(8) cfu ml(-1)). V. fluvialis produced dose-dependent increments in respiratory burst in sea bream leucocytes. The respiratory burst activity of sea bream head kidney leucocytes incubated with 10(6) cfu ml(-1) of live and inactivated bacteria was not stimulated. The highest values of peroxidase content were observed in sea bass cells with stimulation indexes higher than 1 in HK leucocytes incubated with 10(8) cfu ml(-1) of live and inactivated bacteria. Statistical analysis revealed that differences being only significant in sea bass leucocytes where 10(8) cfu ml(-1) bacteria denote statistically significant differences (P < 0.05) respect to other concentrations. Highest values of phagocytic activity were obtained in sea bass macrophages incubated with UV-light inactivated bacteria (27.33% ± 1.45), where significantly differences with sea bass HK leucocytes were detected. Our results suggest that the in vitro assays are a useful tool to optimize the effective dose of probiotic bacteria. Although in vivo studies are necessary to confirm the immunomodulatory effect of this strain.
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Affiliation(s)
- L Román
- Instituto Universitario de Sanidad Animal, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
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Garinchesa P, Sakamoto J, Welt S, Real F, Rettig W, Old L. Organ-specific expression of the colon cancer antigen A33, a cell surface target for antibody-based therapy. Int J Oncol 2012; 9:465-71. [PMID: 21541536 DOI: 10.3892/ijo.9.3.465] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Monoclonal antibody mAbA33 recognizes a unique cell surface protein of colorectal cancer, the A33 antigen. Phase I/II studies have shown highly selective targeting of radio-labeled mAbA33 in patients with metastatic colorectal cancer, opening up the possibility of A33-directed therapy. To better understand the basis of selective mAbA33 targeting in patients, the present study was designed to define the A33 distribution in normal organs and examine A33 expression in a broad range of tumor types. Immunohistochemical analysis of normal tissues identified the large and small intestinal mucosa as the principal sites of A33 expression. Tests with over 450 tumor samples showed that only tumors of the gastrointestinal tract are consistently A33-positive. For example, A33 is found in 95% of primary and metastatic colorectal cancers (86 of 90 cases tested), with uniform expression throughout the tumors in most cases. A33 was detected in a subset of gastric cancers (14/24 cases), with uniform expression in 10 cases (including 5 signer ring adenocarcinomas). Among esophageal cancers, squamous cell tumors typed A33-negative (9 cases), whereas one case each of mucinous and intestinal type was A33-positive. A subset of pancreatic carcinomas (6/12 cases) showed A33 expression, although with marked heterogeneity. Other epithelial cancers, sarcomas, neuroectodermal tumors, and lymphoid neoplasms were generally A33-negative. A33 is the first example of a constitutively expressed, organ-specific epithelial membrane antigen permitting highly specific tumor targeting in patients with colorectal cancer.
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Affiliation(s)
- P Garinchesa
- MEM SLOAN KETTERING CANC CTR,DEPT PATHOL,NEW YORK,NY 10021. MEM SLOAN KETTERING CANC CTR,LUDWIG INST CANC RES,NEW YORK,NY 10021. MEM SLOAN KETTERING CANC CTR,DEPT MED,NEW YORK,NY 10021. MEM SLOAN KETTERING CANC CTR,PROGRAM IMMUNOL,NEW YORK,NY 10021. AICHI CANC CTR,DEPT SURG GASTROENTEROL,NAGOYA,AICHI 464,JAPAN. INST MUNICIPAL INVEST MED,E-08003 BARCELONA,SPAIN
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El Aamri F, Real F, Acosta F, Acosta B, Valdivia J, Ramos-Vivas J, Padilla D. In vitro study of adherence, invasion, and persistence of Streptococcus iniae in fibroblastic-like fish cell line SAF-1. J Aquat Anim Health 2012; 24:165-170. [PMID: 22897319 DOI: 10.1080/08997659.2012.675928] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Streptococcus iniae is a major fish pathogen producing invasive infections that result in economic losses in aquaculture. Gentamicin protection assays were used to investigate the ability of different S. iniae strains to invade and adhere to fibroblastic-like fish cell line SAF-1. All strains tested were detected intracellularly using both techniques, with variable internalization degrees between strains. The experiments carried out at 4°C demonstrated that active cell metabolism is necessary for bacterial internalization. Intracellular bacteria were detected for up to 3 d with a round morphology and were stained with 4',6-diamidino-2-phenylindole (DAPI), indicating that some bacterial cells may remain viable inside SAF-1 cells. Our in vitro findings indicate that S. iniae is capable of adhering, entering, and surviving within fibroblastic cells, which may be important for the persistence and establishment of a carrier state.
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Affiliation(s)
- F El Aamri
- University of Las Palmas de Gran Canaria, Arucas, Las Palmas, Spain
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