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Koczerka M, Lantier I, Morillon M, Deperne J, Clamagirand CD, Virlogeux-Payant I, Grépinet O. From intestine to beyond: Salmonella entry factors display distinct transcription pattern upon infection in murine models. Open Biol 2024; 14:230312. [PMID: 38228171 DOI: 10.1098/rsob.230312] [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: 08/29/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024] Open
Abstract
The infectious process of bacteria of the genus Salmonella requires the finely regulated use of various virulence factors. Among them, the type 3 secretion system-1 (T3SS-1) and the Rck and PagN invasins are involved in the internalization of the pathogen within eukaryotic cells, but their precise role in the host and in the pathogenic process is still poorly understood. In this study, we aimed to determine the kinetics of expression of these entry factors in a typhoid fever-like and a gastroenteritis model in mice by in vivo imaging using bioluminescent Salmonella Typhimurium reporter strains carrying chromosomal transcriptional fusions. Only pagN and T3SS-1 transcription has been clearly identified. Independently of the pathological model, the caecum was identified as the main transcription site of both pagN and the T3SS-1-encoding gene both at early and late stages of the infection. An intense transcription of pagN was also observed in deep organs in the typhoid fever-like model, while that of T3SS-1 remained quite sporadic in these organs, and mainly focused on the intestine all along the infection. This work will help to understand the respective role of these entry factors at the cellular level in the pathogenesis of Salmonella in vivo.
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Affiliation(s)
| | | | - Marie Morillon
- INRAE, Université de Tours, ISP, 37380, Nouzilly, France
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2
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Schimpf U, Caldas-Silveira E, Katchan L, Vigier-Carriere C, Lantier I, Nachmann G, Gidlöf S, Jonasson AF, Björndahl L, Trombotto S, Druart X, Crouzier T. Topical reinforcement of the cervical mucus barrier to sperm. Sci Transl Med 2022; 14:eabm2417. [PMID: 36449601 DOI: 10.1126/scitranslmed.abm2417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Close to half of the world's pregnancies are still unplanned, reflecting a clear unmet need in contraception. Ideally, a contraceptive would provide the high efficacy of hormonal treatments, without systemic side effects. Here, we studied topical reinforcement of the cervical mucus by chitosan mucoadhesive polymers as a form of female contraceptive. Chitosans larger than 7 kDa effectively cross-linked human ovulatory cervical mucus to prevent sperm penetration in vitro. We then demonstrated in vivo using the ewe as a model that vaginal gels containing chitosan could stop ram sperm at the entrance of the cervical canal and prevent them from reaching the uterus, whereas the same gels without chitosan did not substantially limit sperm migration. Chitosan did not affect sperm motility in vitro or in vivo, suggesting reinforcement of the mucus physical barrier as the primary mechanism of action. The chitosan formulations did not damage or irritate the ewe vaginal epithelium, in contrast to nonoxynol-9 spermicide. The demonstration that cervical mucus can be reinforced topically to create an effective barrier to sperm may therefore form the technological basis for muco-cervical barrier contraceptives with the potential to become an alternative to hormonal contraceptives.
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Affiliation(s)
- Ulrike Schimpf
- Division of Glycoscience, Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health (CBH), AlbaNova University Center, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden.,Department of Material and Environmental Chemistry (MMK), Stockholm University, 106 91 Stockholm, Sweden
| | - Erika Caldas-Silveira
- PIXANIM, Physiologie de la Reproduction et des Comportements, UMR INRAE, CNRS, Université de Tours, IFCE, 37380 Nouzilly, France
| | - Ljudmila Katchan
- Cirqle Biomedical Contraception ApS, Ole Maaløes Vej 3, 2200 Copenhagen, Denmark
| | | | - Isabelle Lantier
- French National Institute for Agriculture, Food, and Environment (INRAE), UMR ISP, Université de Tours, 37380 Nouzilly, France
| | - Gilai Nachmann
- Division of Glycoscience, Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health (CBH), AlbaNova University Center, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden
| | - Sebastian Gidlöf
- Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, 141 86 Stockholm, Sweden.,Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Alfred Nobels alle 8, 141 52 Huddinge, Sweden
| | - Aino Fianu Jonasson
- Department of Gynecology and Reproductive Medicine, Karolinska University Hospital, 141 86 Stockholm, Sweden.,Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Alfred Nobels alle 8, 141 52 Huddinge, Sweden
| | - Lars Björndahl
- ANOVA-Andrology, Sexual Medicine, Transmedicine, Karolinska University Hospital and Karolinska Institutet, Norra Stationsgatan 69, 113 64 Stockholm, Sweden
| | - Stéphane Trombotto
- Université de Lyon, Université Claude Bernard Lyon 1, CNRS, IMP, UMR 5223, F-69622 Villeurbanne, France
| | - Xavier Druart
- PIXANIM, Physiologie de la Reproduction et des Comportements, UMR INRAE, CNRS, Université de Tours, IFCE, 37380 Nouzilly, France
| | - Thomas Crouzier
- Division of Glycoscience, Department of Chemistry, School of Engineering Science in Chemistry, Biotechnology and Health (CBH), AlbaNova University Center, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden.,Cirqle Biomedical Contraception ApS, Ole Maaløes Vej 3, 2200 Copenhagen, Denmark.,AIMES-Center for the Advancement of Integrated Medical and Engineering Sciences, Karolinska Institutet and KTH Royal Institute of Technology, 171 77 Stockholm, Sweden.,Department of Neuroscience, Karolinska Institutet, 171 77 Stockholm, Sweden
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3
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Lantier I, Mallet C, Souci L, Larcher T, Conradie AM, Courvoisier K, Trapp S, Pasdeloup D, Kaufer BB, Denesvre C. In vivo imaging reveals novel replication sites of a highly oncogenic avian herpesvirus in chickens. PLoS Pathog 2022; 18:e1010745. [PMID: 36037230 PMCID: PMC9462805 DOI: 10.1371/journal.ppat.1010745] [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: 01/18/2022] [Revised: 09/09/2022] [Accepted: 07/16/2022] [Indexed: 12/04/2022] Open
Abstract
In vivo bioluminescence imaging facilitates the non-invasive visualization of biological processes in living animals. This system has been used to track virus infections mostly in mice and ferrets; however, until now this approach has not been applied to pathogens in avian species. To visualize the infection of an important avian pathogen, we generated Marek’s disease virus (MDV) recombinants expressing firefly luciferase during lytic replication. Upon characterization of the recombinant viruses in vitro, chickens were infected and the infection visualized in live animals over the course of 14 days. The luminescence signal was consistent with the known spatiotemporal kinetics of infection and the life cycle of MDV, and correlated well with the viral load measured by qPCR. Intriguingly, this in vivo bioimaging approach revealed two novel sites of MDV replication, the beak and the skin of the feet covered in scales. Feet skin infection was confirmed using a complementary fluorescence bioimaging approach with MDV recombinants expressing mRFP or GFP. Infection was detected in the intermediate epidermal layers of the feet skin that was also shown to produce infectious virus, regardless of the animals’ age at and the route of infection. Taken together, this study highlights the value of in vivo whole body bioimaging in avian species by identifying previously overlooked sites of replication and shedding of MDV in the chicken host. In vivo bioluminescence imaging is a powerful tool to track virus infection in the whole body of living animals. This system has been successfully used in mice, ferrets, rats and even fishes, but until now never in birds. In this study, we performed the first in vivo imaging assessing the spread of an important avian pathogen, the highly oncogenic Marek’s disease virus (MDV). Using a recombinant virus expressing firefly luciferase, we visualized the course of MDV infection in chicks for 14 days. The bioluminescent signal was consistent with the known kinetics and sites of dissemination of MDV, notably in feathers. With this new approach, we also discovered two novels sites of early infection and replication that may contribute to persistent virus shedding. Both novel sites represent hard skin appendages like the feathers: the beak and the skin of the feet that are covered in scales. These results were confirmed with two recombinant viruses expressing fluorescent proteins. Fifty-five years after the discovery of MDV and thanks to in vivo imaging, we provide new insights in MDV life cycle in vivo, highlighting the importance of bioluminescence imaging of the entire body in living animals.
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Affiliation(s)
| | - Corentin Mallet
- INRAE, UMR1282 ISP, Centre INRAE Val de Loire, Nouzilly, France
| | - Laurent Souci
- INRAE, UMR1282 ISP, Centre INRAE Val de Loire, Nouzilly, France
| | | | | | | | - Sascha Trapp
- INRAE, UMR1282 ISP, Centre INRAE Val de Loire, Nouzilly, France
| | - David Pasdeloup
- INRAE, UMR1282 ISP, Centre INRAE Val de Loire, Nouzilly, France
| | - Benedikt B. Kaufer
- Institut für Virologie, Freie Universität Berlin, Berlin, Germany
- Veterinary Centre for Resistance Research (TZR), Freie Universität Berlin, Berlin, Germany
- * E-mail: (BK); (CD)
| | - Caroline Denesvre
- INRAE, UMR1282 ISP, Centre INRAE Val de Loire, Nouzilly, France
- * E-mail: (BK); (CD)
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4
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Koczerka M, Lantier I, Pinard A, Morillon M, Deperne J, Gal-Mor O, Grépinet O, Virlogeux-Payant I. In Vivo Tracking of Bacterial Colonization in Different Murine Models Using Bioluminescence: The Example of Salmonella. Methods Mol Biol 2022; 2427:235-248. [PMID: 35619038 DOI: 10.1007/978-1-0716-1971-1_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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] [Indexed: 06/15/2023]
Abstract
Applications of bioluminescence for the in vivo study of pathogenic microorganisms are numerous, ranging from the quantification of virulence gene expression to measuring the effect of antimicrobial molecules on the colonization of tissues and organs by the pathogen. Most studies are performed in mice, but recent works demonstrate that this technique is applicable to larger animals like fish, guinea pigs, ferrets, and chickens. Here, we describe the construction and the utilization of a constitutively luminescent strain of Salmonella Typhimurium to monitor in vivo and ex vivo the colonization of mice in the gastroenteritis, typhoid fever, and asymptomatic carriage models of Salmonella infection.
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Affiliation(s)
| | | | | | | | | | - Ohad Gal-Mor
- The Infectious Diseases Research Laboratory, Sheba Medical Center, Tel-Hashomer, Israel
- The Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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5
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Ducournau C, Moiré N, Carpentier R, Cantin P, Herkt C, Lantier I, Betbeder D, Dimier-Poisson I. Effective Nanoparticle-Based Nasal Vaccine Against Latent and Congenital Toxoplasmosis in Sheep. Front Immunol 2020; 11:2183. [PMID: 33013917 PMCID: PMC7509486 DOI: 10.3389/fimmu.2020.02183] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 05/07/2020] [Accepted: 08/10/2020] [Indexed: 01/19/2023] Open
Abstract
Toxoplasma gondii is a parasitic protozoan of worldwide distribution, able to infect all warm-blooded animals, but particularly sheep. Primary infection in pregnant sheep leads to millions of abortions and significant economic losses for the livestock industry. Moreover, infected animals constitute the main parasitic reservoir for humans. Therefore, the development of a One-health vaccine seems the best prevention strategy. Following earlier work, a vaccine constituted of total extract of Toxoplasma gondii proteins (TE) associated with maltodextrin nanoparticles (DGNP) was developed in rodents. In this study we evaluated the ability of this vaccine candidate to protect against latent and congenital toxoplasmosis in sheep. After two immunizations by either intranasal or intradermal route, DGNP/TE vaccine generated specific Th1-cellular immune response, mediated by APC-secretion of IFN-γ and IL-12. Secretion of IL-10 appeared to regulate this Th1 response for intradermally vaccinated sheep but was absent in intranasally-vaccinated animals. Finally, protection against latent toxoplasmosis and transplacental transmission were explored. Intranasal vaccination led to a marked decrease of brain cysts compared with the non-vaccinated group. This DGNP/TE vaccine administered intranasally conferred a high level of protection against latent toxoplasmosis and its transplacental transmission in sheep, highlighting the potential for development of such a vaccine for studies in other species.
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Affiliation(s)
| | | | - Rodolphe Carpentier
- INFINITE, Institute for Translational Research in Inflammation, University of Lille, Inserm, Lille, France
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6
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Nonno R, Marin-Moreno A, Carlos Espinosa J, Fast C, Van Keulen L, Spiropoulos J, Lantier I, Andreoletti O, Pirisinu L, Di Bari MA, Aguilar-Calvo P, Sklaviadis T, Papasavva-Stylianou P, Acutis PL, Acin C, Bossers A, Jacobs JG, Vaccari G, D'Agostino C, Chiappini B, Lantier F, Groschup MH, Agrimi U, Maria Torres J, Langeveld JPM. Characterization of goat prions demonstrates geographical variation of scrapie strains in Europe and reveals the composite nature of prion strains. Sci Rep 2020; 10:19. [PMID: 31913327 PMCID: PMC6949283 DOI: 10.1038/s41598-019-57005-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 07/23/2019] [Accepted: 12/16/2019] [Indexed: 11/09/2022] Open
Abstract
Bovine Spongiform Encephalopathy (BSE) is the only animal prion which has been recognized as a zoonotic agent so far. The identification of BSE in two goats raised the need to reliably identify BSE in small ruminants. However, our understanding of scrapie strain diversity in small ruminants remains ill-defined, thus limiting the accuracy of BSE surveillance and spreading fear that BSE might lurk unrecognized in goats. We investigated prion strain diversity in a large panel of European goats by a novel experimental approach that, instead of assessing the neuropathological profile after serial transmissions in a single animal model, was based on the direct interaction of prion isolates with several recipient rodent models expressing small ruminants or heterologous prion proteins. The findings show that the biological properties of scrapie isolates display different patterns of geographical distribution in Europe and suggest that goat BSE could be reliably discriminated from a wide range of biologically and geographically diverse goat prion isolates. Finally, most field prion isolates showed composite strain features, with discrete strain components or sub-strains being present in different proportions in individual goats or tissues. This has important implications for understanding the nature and evolution of scrapie strains and their transmissibility to other species, including humans.
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Affiliation(s)
- Romolo Nonno
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy.
| | | | | | - Christine Fast
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institute, Greifswald-Isle of Riems, Germany
| | | | - John Spiropoulos
- Animal and Plant Health Agency, New Haw, Addlestone, Surrey, United Kingdom
| | - Isabelle Lantier
- INRA-Centre Val de Loire, Infectiologie et Santé Publique, Nouzilly, France
| | - Olivier Andreoletti
- UMR INRA ENVT 1225- IHAP, École Nationale Vétérinaire de Toulouse, Toulouse, France
| | - Laura Pirisinu
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy
| | - Michele A Di Bari
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy
| | | | - Theodoros Sklaviadis
- Laboratory of Pharmacology, School of Health Sciences, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Pier Luigi Acutis
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Torino, Italy
| | - Cristina Acin
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Alex Bossers
- Wageningen BioVeterinary Research, Lelystad, the Netherlands
| | - Jorge G Jacobs
- Wageningen BioVeterinary Research, Lelystad, the Netherlands
| | - Gabriele Vaccari
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy
| | - Claudia D'Agostino
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy
| | - Barbara Chiappini
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy
| | - Frederic Lantier
- INRA-Centre Val de Loire, Infectiologie et Santé Publique, Nouzilly, France
| | - Martin H Groschup
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institute, Greifswald-Isle of Riems, Germany
| | - Umberto Agrimi
- Istituto Superiore di Sanità, Department of Food Safety, Nutrition and Veterinary Public Health, Rome, Italy
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7
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Lê MQ, Carpentier R, Lantier I, Ducournau C, Fasquelle F, Dimier-Poisson I, Betbeder D. Protein delivery by porous cationic maltodextrin-based nanoparticles into nasal mucosal cells: Comparison with cationic or anionic nanoparticles. Int J Pharm X 2019; 1:100001. [PMID: 31545856 PMCID: PMC6733295 DOI: 10.1016/j.ijpx.2018.100001] [Citation(s) in RCA: 9] [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: 07/02/2018] [Revised: 11/29/2018] [Accepted: 12/06/2018] [Indexed: 12/21/2022] Open
Abstract
Different types of biodegradable nanoparticles (NPs) have been studied as delivery systems for proteins into nasal mucosal cells, especially for vaccine applications. Such a nanocarrier must have the ability to be loaded with proteins and to transport this payload into mucosal cells. However, comparative data on nanoparticles' capacity for protein loading, efficiency of subsequent endocytosis and the quantity of nanocarriers used are either lacking or contradictory, making comparisons and the choice of a best candidate difficult. Here we compared 5 types of nanoparticles with different surface charge (anionic or cationic) and various inner compositions as potential vectors: the NPL (cationic maltodextrin NP with an anionic lipid core), cationic and anionic PLGA (Poly Lactic co-Glycolic Acid) NP, and cationic and anionic liposomes. We first quantified the protein association efficiency and NPL associated the largest amount of ovalbumin, used as a model protein. In vitro, the delivery of fluorescently-labeled ovalbumin into mucosal cells (airway epithelial cells, dendritic cells and macrophages) was assessed by flow cytometry and revealed that the NPL delivered protein to the greatest extent in all 3 different cell lines. Taken together, these data underlined the potential of the porous and cationic maltodextrin-based NPL as efficient protein delivery systems to mucosal cells.
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Affiliation(s)
- Minh Quan Lê
- Inserm, LIRIC – UMR 995, F-59 000 Lille, France
- Univ Lille, LIRIC – UMR 995, F-59 045 Lille, France
- CHRU de Lille, LIRIC – UMR 995, F-59 000 Lille, France
| | - Rodolphe Carpentier
- Inserm, LIRIC – UMR 995, F-59 000 Lille, France
- Univ Lille, LIRIC – UMR 995, F-59 045 Lille, France
- CHRU de Lille, LIRIC – UMR 995, F-59 000 Lille, France
| | | | | | - François Fasquelle
- Inserm, LIRIC – UMR 995, F-59 000 Lille, France
- Univ Lille, LIRIC – UMR 995, F-59 045 Lille, France
- CHRU de Lille, LIRIC – UMR 995, F-59 000 Lille, France
| | | | - Didier Betbeder
- Inserm, LIRIC – UMR 995, F-59 000 Lille, France
- Univ Lille, LIRIC – UMR 995, F-59 045 Lille, France
- CHRU de Lille, LIRIC – UMR 995, F-59 000 Lille, France
- Université d’Artois, 62300 Lens, France
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8
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Langeveld JPM, Pirisinu L, Jacobs JG, Mazza M, Lantier I, Simon S, Andréoletti O, Acin C, Esposito E, Fast C, Groschup M, Goldmann W, Spiropoulos J, Sklaviadis T, Lantier F, Ekateriniadou L, Papasavva-Stylianou P, van Keulen LJM, Acutis PL, Agrimi U, Bossers A, Nonno R. Four types of scrapie in goats differentiated from each other and bovine spongiform encephalopathy by biochemical methods. Vet Res 2019; 50:97. [PMID: 31767033 PMCID: PMC6878695 DOI: 10.1186/s13567-019-0718-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 07/23/2019] [Accepted: 10/16/2019] [Indexed: 01/03/2023] Open
Abstract
Scrapie in goats has been known since 1942, the archetype of prion diseases in which only prion protein (PrP) in misfolded state (PrPSc) acts as infectious agent with fatal consequence. Emergence of bovine spongiform encephalopathy (BSE) with its zoonotic behaviour and detection in goats enhanced fears that its source was located in small ruminants. However, in goats knowledge on prion strain typing is limited. A European-wide study is presented concerning the biochemical phenotypes of the protease resistant fraction of PrPSc (PrPres) in over thirty brain isolates from transmissible spongiform encephalopathy (TSE) affected goats collected in seven countries. Three different scrapie forms were found: classical scrapie (CS), Nor98/atypical scrapie and one case of CH1641 scrapie. In addition, CS was found in two variants-CS-1 and CS-2 (mainly Italy)-which differed in proteolytic resistance of the PrPres N-terminus. Suitable PrPres markers for discriminating CH1641 from BSE (C-type) appeared to be glycoprofile pattern, presence of two triplets instead of one, and structural (in)stability of its core amino acid region. None of the samples exhibited BSE like features. BSE and these four scrapie types, of which CS-2 is new, can be recognized in goats with combinations of a set of nine biochemical parameters.
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Affiliation(s)
- Jan P M Langeveld
- Wageningen BioVeterinary Research (WBVR), Wageningen University & Research, Houtribweg 39, 8221RA, Lelystad, The Netherlands.
| | - Laura Pirisinu
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanita (ISS), 299-00161, Rome, Italy
| | - Jorg G Jacobs
- Wageningen BioVeterinary Research (WBVR), Wageningen University & Research, Houtribweg 39, 8221RA, Lelystad, The Netherlands
| | - Maria Mazza
- Italian Reference Centre for TSEs, Istituto Zooprofilattico Sperimentale del Piemonte (IZSTO), 10154, Turin, TO, Italy
| | - Isabelle Lantier
- UMR 1282 ISP, Institut National de la Recherche Agronomique (INRA), University of Tours, 37380, Nouzilly, France
| | - Stéphanie Simon
- Commissariat à l'Énergie Atomique (CEA), 91191, Gif-sur-Yvette, France
| | - Olivier Andréoletti
- UMR INRA/ENVT 1225 IHAP, École Nationale Vétérinaire de Toulouse (ENVT), 31300, Toulouse, France
| | - Cristina Acin
- Research Centre for TSE and Emerging Transmissible Diseases, University of Zaragoza (UNIZAR), 50013, Zaragoza, Spain
| | - Elena Esposito
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanita (ISS), 299-00161, Rome, Italy
| | - Christine Fast
- Friedrich-Loeffler-Institut (FLI), Institute of Novel and Emerging Infectious Diseases, Greifswald-Isle of Riems, 17493, Greifswald, Germany
| | - Martin Groschup
- Friedrich-Loeffler-Institut (FLI), Institute of Novel and Emerging Infectious Diseases, Greifswald-Isle of Riems, 17493, Greifswald, Germany
| | - Wilfred Goldmann
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh (UEDIN), Easter Bush, Midlothian, EH25 9RG, UK
| | - John Spiropoulos
- Department of Pathology, Animal and Plant Health Agency (APHA), Woodham Lane, Addlestone, Surrey, KT15 3NB, UK
| | - Theodoros Sklaviadis
- School of Pharmacy, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece
| | - Frederic Lantier
- UMR 1282 ISP, Institut National de la Recherche Agronomique (INRA), University of Tours, 37380, Nouzilly, France
| | - Loukia Ekateriniadou
- Hellenic Agricultural Organization DEMETER, Veterinary Research Institute, 57001, Thessaloniki, Greece
| | | | - Lucien J M van Keulen
- Wageningen BioVeterinary Research (WBVR), Wageningen University & Research, Houtribweg 39, 8221RA, Lelystad, The Netherlands
| | - Pier-Luigi Acutis
- Italian Reference Centre for TSEs, Istituto Zooprofilattico Sperimentale del Piemonte (IZSTO), 10154, Turin, TO, Italy
| | - Umberto Agrimi
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanita (ISS), 299-00161, Rome, Italy
| | - Alex Bossers
- Wageningen BioVeterinary Research (WBVR), Wageningen University & Research, Houtribweg 39, 8221RA, Lelystad, The Netherlands
| | - Romolo Nonno
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanita (ISS), 299-00161, Rome, Italy
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9
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Bailleul G, Guabiraba R, Virlogeux-Payant I, Lantier I, Trotereau J, Gilbert FB, Wiedemann A, Trotereau A, Velge P, Schouler C, Lalmanach AC. Systemic Administration of Avian Defensin 7: Distribution, Cellular Target, and Antibacterial Potential in Mice. Front Microbiol 2019; 10:541. [PMID: 30972041 PMCID: PMC6444188 DOI: 10.3389/fmicb.2019.00541] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 03/01/2019] [Indexed: 12/20/2022] Open
Abstract
Defensins are natural antimicrobial peptides. The avian beta-defensin AvBD7 isolated from the chicken bone marrow possess broad antibacterial spectrum and strong resistance to proteolysis. However, its ability to fight systemic infections of major concern for public health, such as salmonellosis, is unknown. As a first approach, fluorescence labeling of AvBD7 allowed to track its systemic distribution after intraperitoneal injection in mice using whole body live imaging. It was associated to peritoneal cells and to deeper organs such as the liver. In the next step, the use of labeled AvBD7 allowed to observe its interaction with murine macrophages in culture. After incubation, it was able to penetrate inside the cells through an endocytosis-like mechanism. Furthermore, natural AvBD7 contributed to the control of intracellular multiplication of a multidrug resistant Salmonella strain, after incubation with infected macrophages. Finally, administration in a model of systemic lethal Salmonella infection in mice led to significant improvement of mouse survival, consistently with significant reduction of the liver bacterial load. In conclusion, the results reveal a hitherto unknown intracellular antibacterial effect of AvBD7 in Salmonella target cells and support AvBD7 as a candidate of interest for the treatment of infectious diseases caused by multidrug-resistant pathogenic Enterobacteriaceae.
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Affiliation(s)
- Geoffrey Bailleul
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Rodrigo Guabiraba
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | | | - Isabelle Lantier
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Jérôme Trotereau
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Florence B Gilbert
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Agnès Wiedemann
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Angélina Trotereau
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Philippe Velge
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
| | - Catherine Schouler
- ISP, INRA, Université de Tours, UMR 1282 Centre INRA Val de Loire, Nouzilly, France
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10
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Le MQ, Carpentier R, Lantier I, Ducournau C, Dimier-Poisson I, Betbeder D. Residence time and uptake of porous and cationic maltodextrin-based nanoparticles in the nasal mucosa: Comparison with anionic and cationic nanoparticles. Int J Pharm 2018; 550:316-324. [PMID: 30171898 DOI: 10.1016/j.ijpharm.2018.08.054] [Citation(s) in RCA: 18] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/23/2018] [Accepted: 08/28/2018] [Indexed: 12/20/2022]
Abstract
Different types of biodegradable nanoparticles (NP) have been studied as nasal mucosa cell delivery systems. These nanoparticles need to strongly interact with mucosa cells to deliver their payload. However, only a few simultaneous comparisons have been made and it is therefore difficult to determine the best candidate. Here we compared 5 types of nanoparticles with different surface charge (anionic or cationic) and various inner compositions as potential vectors: cationic and anionic liposomes, cationic and anionic PLGA (Poly Lactic co-Glycolic Acid) NP and porous and cationic maltodextrin NP (cationic surface with an anionic lipid core: NPL). We first quantified their nasal residence time after nasal administration in mice using in vivo live imaging and NPL showed the longest residence time. In vitro endocytosis on mucosal cells (airway epithelial cells, macrophages and dendritic cells) using labeled nanoparticles were performed by flow cytometry and confocal microscopy. Among the 5 nanoparticles, NPL were taken up to the greatest extent by the 3 different cell lines and the endocytosis mechanisms were characterized. Taken together, we observed that the nanoparticles' cationic surface charge is insufficient to improve mucosal residence time and cellular uptake and that the NPL are the best candidates to interact with airway mucosal cells.
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Affiliation(s)
- Minh Quan Le
- Inserm, LIRIC - UMR 995, F-59 000 Lille, France; Univ Lille, LIRIC - UMR 995, F-59 045 Lille, France; CHRU de Lille, LIRIC - UMR 995, F-59 000 Lille, France
| | - Rodolphe Carpentier
- Inserm, LIRIC - UMR 995, F-59 000 Lille, France; Univ Lille, LIRIC - UMR 995, F-59 045 Lille, France; CHRU de Lille, LIRIC - UMR 995, F-59 000 Lille, France.
| | | | | | | | - Didier Betbeder
- Inserm, LIRIC - UMR 995, F-59 000 Lille, France; Univ Lille, LIRIC - UMR 995, F-59 045 Lille, France; CHRU de Lille, LIRIC - UMR 995, F-59 000 Lille, France; Université d'Artois, 62300 Lens, France
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11
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Fast C, Goldmann W, Berthon P, Tauscher K, Andréoletti O, Lantier I, Rossignol C, Bossers A, Jacobs JG, Hunter N, Groschup MH, Lantier F, Langeveld JPM. Protecting effect of PrP codons M142 and K222 in goats orally challenged with bovine spongiform encephalopathy prions. Vet Res 2017; 48:52. [PMID: 28927447 PMCID: PMC5606029 DOI: 10.1186/s13567-017-0455-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 03/17/2017] [Accepted: 07/19/2017] [Indexed: 12/31/2022] Open
Abstract
Breeding towards genetic resistance to prion disease is effective in eliminating scrapie. In sheep, classical forms of scrapie have been eradicated almost completely in several countries by breeding programs using a prion protein (PrP) gene (PRNP) amino acid polymorphism. For goats, field and experimental studies have provided evidence for several amino acid polymorphisms that are associated with resistance to scrapie, but only limited data are available concerning the susceptibility of caprine PRNP genotypes to BSE. In this study, goat kids representing five PRNP genotypes based on three polymorphisms (M142, Q211 and K222 and the wild type I142, R211 and Q222) were orally challenged with bovine or goat BSE. Wild type goats were killed with clinical signs between 24-28 months post inoculation (mpi) to both challenges, and goats with genotype R/Q211 succumbed between 29-36 mpi. I/M142 goats developed clinical signs at 44-45 mpi and M/M142 goats remained healthy until euthanasia at 48 mpi. None of the Q/K222 goats showed definite clinical signs. Taken together the highest attack ratios were seen in wild type and R/Q211 goats, and the lowest in I/M142, M/M142 and Q/K222. In all genotype groups, one or more goats remained healthy within the incubation period in both challenges and without detectable PrP deposition in the tissues. Our data show that both the K222 and M142 polymorphisms lengthen the incubation period significantly compared to wild type animals, but only K222 was associated with a significant increase in resistance to BSE infection after oral exposure to both BSE sources.
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Affiliation(s)
- C. Fast
- Friedrich-Loeffler-Institut, Institute of Novel and Emerging Infectious Diseases, Greifswald-Insel Riems, Germany
| | - W. Goldmann
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, UK
| | - P. Berthon
- UMR 1282 ISP, Institut National de la Recherche Agronomique (INRA), University of Tours, 37380 Nouzilly, France
| | - K. Tauscher
- Friedrich-Loeffler-Institut, Institute of Novel and Emerging Infectious Diseases, Greifswald-Insel Riems, Germany
| | - O. Andréoletti
- INRA, UMR 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse Cedex, France
| | - I. Lantier
- UMR 1282 ISP, Institut National de la Recherche Agronomique (INRA), University of Tours, 37380 Nouzilly, France
| | - C. Rossignol
- UMR 1282 ISP, Institut National de la Recherche Agronomique (INRA), University of Tours, 37380 Nouzilly, France
| | - A. Bossers
- Wageningen BioVeterinary Research, Wageningen University & Research, Houtribweg 39, 8221RA Lelystad, The Netherlands
| | - J. G. Jacobs
- Wageningen BioVeterinary Research, Wageningen University & Research, Houtribweg 39, 8221RA Lelystad, The Netherlands
| | - N. Hunter
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, UK
| | - M. H. Groschup
- Friedrich-Loeffler-Institut, Institute of Novel and Emerging Infectious Diseases, Greifswald-Insel Riems, Germany
| | - F. Lantier
- UMR 1282 ISP, Institut National de la Recherche Agronomique (INRA), University of Tours, 37380 Nouzilly, France
| | - J. P. M. Langeveld
- Wageningen BioVeterinary Research, Wageningen University & Research, Houtribweg 39, 8221RA Lelystad, The Netherlands
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12
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Ballingall KT, Lantier I, Todd H, Lantier F, Rocchi M. Structural and functional diversity arising from intra- and inter-haplotype combinations of duplicated DQA and B loci within the ovine MHC. Immunogenetics 2017; 70:257-269. [PMID: 28889256 DOI: 10.1007/s00251-017-1029-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/03/2017] [Indexed: 11/27/2022]
Abstract
In sheep, the A and B loci encoding the α and β chains of the classical class II MHC molecules are DRA and DRB and DQA and DQB. Previous analyses described the duplication of the DQA and DQB genes. The majority of haplotypes include DQA1 and DQA2 loci, however, in a number of haplotypes, DQA1 appears absent and these haplotypes have been described as DQA1 null. In these haplotypes, the DQA2 locus is found in combination with a second locus which appeared more closely related to DQA2 than DQA1, hence the description of this locus as DQA2-like. Here we combine our previous analysis of the DQA transcripts with an analysis of the associated DQB transcripts in ten haplotypes from MHC homozygous animals. This allows the potential for surface expression of different haplotype combinations of DQA and B genes and the functional significance of DQA2-like and its predicted DQB partner to be determined. Atypical DQB transcripts (DQB2-like) were identified in haplotypes classified as DQA1-null and conserved DQB2-like orthologues were identified in other Bovidae indicating trans-species conservation of the allelic lineage. Functional combinations detected by co-transfection of DQ1, DQ2 and DQ2-like genes demonstrates the potential for a wide range of DQ molecules derived from both intra- and inter-haplotype as well as inter-locus combinations. We provide evidence that DQA2-like and B2-like genes form an evolutionary conserved pair which generates structurally distinct class II molecules that are likely to present a distinct range of peptides to CD4+ T cells.
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Affiliation(s)
- Keith T Ballingall
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, EH26 OPZ, Midlothian, UK.
| | - Isabelle Lantier
- INRA-Centre Val de Loire, UMR 1282, Infectiologie et Santé Publique, 37380, Nouzilly, France
| | - Helen Todd
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, EH26 OPZ, Midlothian, UK
| | - Frederic Lantier
- INRA-Centre Val de Loire, UMR 1282, Infectiologie et Santé Publique, 37380, Nouzilly, France
| | - Mara Rocchi
- Moredun Research Institute, Pentland Science Park, Bush Loan, Penicuik, EH26 OPZ, Midlothian, UK
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13
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Ducournau C, Nguyen TT, Carpentier R, Lantier I, Germon S, Précausta F, Pisella PJ, Leroux H, Van Langendonck N, Betbeder D, Dimier-Poisson I. Synthetic parasites: a successful mucosal nanoparticle vaccine against Toxoplasma congenital infection in mice. Future Microbiol 2017; 12:393-405. [PMID: 28339296 DOI: 10.2217/fmb-2016-0146] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AIM Development of protein vaccine to prevent congenital infection is a major public health priority. Our goal is the design of mucosal synthetic pathogen inducing protective immune responses against congenital toxoplasmosis. MATERIALS & METHODS Mice were immunized intranasally, establishing pregnancy and challenging orally. Placental immune response, congenital infection, pup growth, parasitic load rates were studied. RESULTS Pups born to vaccinated infected dams had significantly fewer brain cysts, no intraocular inflammation and normal growth. Protection was associated with a placental cellular Th1 response downregulated by IL-6 and correlated with persistence of vaccine for few hours in the nose before being totally eliminated. CONCLUSION Our vaccine conferred high protection against congenital toxoplasmosis. These results provide support for future studies of other congenital vaccine.
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Affiliation(s)
- Céline Ducournau
- Immunologie Parasitaire et Vaccinologie, Biothérapies Anti-Infectieuses, Université de Tours-INRA, UMR1282 Infectiologie et Santé Publique, UFR Pharmacie, F-37000 Tours, France
| | - Thi Tl Nguyen
- Immunologie Parasitaire et Vaccinologie, Biothérapies Anti-Infectieuses, Université de Tours-INRA, UMR1282 Infectiologie et Santé Publique, UFR Pharmacie, F-37000 Tours, France
| | - Rodolphe Carpentier
- Centre International de Recherche sur l'Inflammation de Lille LIRIC -UMR 995 Inserm/Université Lille 2/CHRU Lille. Innovation thérapeutique ciblant l'inflammation. Groupe Nanomédecine, Faculté de Médecine, F-59045 Lille Cedex, France.,Université d'Artois, rue du Temple, 62030 ARRAS, France
| | - Isabelle Lantier
- Laboratoire d'Expertise en Infection Animale, INRA-Université de Tours, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | - Stéphanie Germon
- Immunologie Parasitaire et Vaccinologie, Biothérapies Anti-Infectieuses, Université de Tours-INRA, UMR1282 Infectiologie et Santé Publique, UFR Pharmacie, F-37000 Tours, France
| | - Flavien Précausta
- Immunologie Parasitaire et Vaccinologie, Biothérapies Anti-Infectieuses, Université de Tours-INRA, UMR1282 Infectiologie et Santé Publique, UFR Pharmacie, F-37000 Tours, France
| | - Pierre-Jean Pisella
- Immunologie Parasitaire et Vaccinologie, Biothérapies Anti-Infectieuses, Université de Tours-INRA, UMR1282 Infectiologie et Santé Publique, UFR Pharmacie, F-37000 Tours, France
| | - Hervé Leroux
- Laboratoire d'Expertise en Infection Animale, INRA-Université de Tours, UMR1282 Infectiologie et Santé Publique, F-37380 Nouzilly, France
| | | | - Didier Betbeder
- Centre International de Recherche sur l'Inflammation de Lille LIRIC -UMR 995 Inserm/Université Lille 2/CHRU Lille. Innovation thérapeutique ciblant l'inflammation. Groupe Nanomédecine, Faculté de Médecine, F-59045 Lille Cedex, France.,Université d'Artois, rue du Temple, 62030 ARRAS, France
| | - Isabelle Dimier-Poisson
- Immunologie Parasitaire et Vaccinologie, Biothérapies Anti-Infectieuses, Université de Tours-INRA, UMR1282 Infectiologie et Santé Publique, UFR Pharmacie, F-37000 Tours, France
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14
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Meloni D, Bozzetta E, Langeveld JPM, Groschup MH, Goldmann W, Andrèoletti O, Lantier I, Van Keulen L, Bossers A, Pitardi D, Nonno R, Sklaviadis T, Ingravalle F, Peletto S, Colussi S, Acutis PL. EU-approved rapid tests might underestimate bovine spongiform encephalopathy infection in goats. J Vet Diagn Invest 2017; 29:232-236. [PMID: 28068881 DOI: 10.1177/1040638716688045] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
We report the diagnostic sensitivity of 3 EU-approved rapid tests (ELISAs; 1 from IDEXX and 2 from Bio-Rad) for the detection of transmissible spongiform encephalopathy diseases in goats. Ninety-eight goat brainstem samples were tested. All the rapid tests had 100% specificity and ≥80% sensitivity, with the IDEXX test significantly more sensitive than the 2 Bio-Rad tests. All tests detected 100% of samples from goats with clinical scrapie, but missed 8% (IDEXX) to 33% (Bio-Rad SG) of samples from preclinical goats. Importantly, only IDEXX picked up all samples from clinical bovine spongiform encephalopathy (BSE)-infected goats, whereas the other 2 rapid tests missed 15% (Bio-Rad SG) to 25% (Bio-Rad SAP). These results show that a fraction of preclinical scrapie infections are likely missed by EU surveillance, with sensitivity of detection strongly dependent on the choice of the rapid test. Moreover, a significant proportion of clinical BSE infections are underestimated by using either Bio-Rad test. Assuming that the same sensitivity on preclinical goats would also occur in BSE-infected goats, our data suggest that IDEXX is likely the most sensitive test for detecting preclinical field cases of BSE infection in goats, although with an 8% failure rate. These results raise some concerns about the reliability of current EU surveillance figures on BSE infection in goats.
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Affiliation(s)
- Daniela Meloni
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Elena Bozzetta
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Jan P M Langeveld
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Martin H Groschup
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Wilfred Goldmann
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Olivier Andrèoletti
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Isabelle Lantier
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Lucien Van Keulen
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Alex Bossers
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Danilo Pitardi
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Romolo Nonno
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Theodoros Sklaviadis
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Francesco Ingravalle
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Simone Peletto
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Silvia Colussi
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
| | - Pier Luigi Acutis
- CEA, Centro di Referenza Nazionale per lo Studio e le Ricerche sulle Encefalopatie Animali e Neuropatologie Comparate, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy (Meloni, Bozzetta, Pitardi, Ingravalle, Peletto, Colussi, Acutis).,Central Veterinary Institute part of Wageningen UR, Lelystad, the Netherlands (Langeveld, Van Keulen, Bossers).,Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany (Groschup).,Roslin Institute and R(D)SVS University of Edinburgh, Roslin, Midlothian, United Kingdom (Goldmann).,UMR INRA ENVT 1225 Interactions Hotes Agents Pathògenes, ENVT, Toulouse, France (Andrèoletti).,ISP, INRA, Université Tours, Nouzilly, France (Lantier).,Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità (ISS), Rome, Italy (Nonno).,Aristotle University, Laboratory of Pharmacology, Department of Pharmaceutical Sciences, School of Health Sciences Thessaloniki, Greece (Sklaviadis)
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15
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Ballingall KT, Steele P, Lantier I, Cotelli M, Todd H, Lopez G, Martin E, Lantier F. An ancient interlocus recombination increases class II MHCDQAdiversity in sheep and otherBovidae. Anim Genet 2015; 46:333-6. [DOI: 10.1111/age.12290] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Keith T. Ballingall
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik Midlothian EH26 OPZ UK
| | - Philip Steele
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik Midlothian EH26 OPZ UK
| | - Isabelle Lantier
- INRA-Centre Val de Loire; UMR 1282; Infectiologie et Santé Publique; 37380 Nouzilly France
| | - Matteo Cotelli
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik Midlothian EH26 OPZ UK
| | - Helen Todd
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik Midlothian EH26 OPZ UK
| | - Guido Lopez
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik Midlothian EH26 OPZ UK
| | - Elena Martin
- Moredun Research Institute; Pentlands Science Park; Bush Loan Penicuik Midlothian EH26 OPZ UK
| | - Frederic Lantier
- INRA-Centre Val de Loire; UMR 1282; Infectiologie et Santé Publique; 37380 Nouzilly France
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16
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Cassard H, Torres JM, Lacroux C, Douet JY, Benestad SL, Lantier F, Lugan S, Lantier I, Costes P, Aron N, Reine F, Herzog L, Espinosa JC, Beringue V, Andréoletti O. Evidence for zoonotic potential of ovine scrapie prions. Nat Commun 2014; 5:5821. [PMID: 25510416 DOI: 10.1038/ncomms6821] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 11/10/2014] [Indexed: 11/10/2022] Open
Abstract
Although Bovine Spongiform Encephalopathy (BSE) is the cause of variant Creutzfeldt Jakob disease (vCJD) in humans, the zoonotic potential of scrapie prions remains unknown. Mice genetically engineered to overexpress the human prion protein (tgHu) have emerged as highly relevant models for gauging the capacity of prions to transmit to humans. These models can propagate human prions without any apparent transmission barrier and have been used used to confirm the zoonotic ability of BSE. Here we show that a panel of sheep scrapie prions transmit to several tgHu mice models with an efficiency comparable to that of cattle BSE. The serial transmission of different scrapie isolates in these mice led to the propagation of prions that are phenotypically identical to those causing sporadic CJD (sCJD) in humans. These results demonstrate that scrapie prions have a zoonotic potential and raise new questions about the possible link between animal and human prions.
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Affiliation(s)
- Hervé Cassard
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
| | | | - Caroline Lacroux
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
| | - Jean-Yves Douet
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
| | - Sylvie L Benestad
- Norwegian Veterinary Institute, Postboks 750 Sentrum, 0106 Oslo, Norway
| | | | - Séverine Lugan
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
| | | | - Pierrette Costes
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
| | - Naima Aron
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
| | - Fabienne Reine
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, F-78352 Jouy-en-Josas, France
| | - Laetitia Herzog
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, F-78352 Jouy-en-Josas, France
| | | | - Vincent Beringue
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, F-78352 Jouy-en-Josas, France
| | - Olivier Andréoletti
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076 Toulouse, France
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17
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Lacroux C, Comoy E, Moudjou M, Perret-Liaudet A, Lugan S, Litaise C, Simmons H, Jas-Duval C, Lantier I, Béringue V, Groschup M, Fichet G, Costes P, Streichenberger N, Lantier F, Deslys JP, Vilette D, Andréoletti O. Preclinical detection of variant CJD and BSE prions in blood. PLoS Pathog 2014; 10:e1004202. [PMID: 24945656 PMCID: PMC4055790 DOI: 10.1371/journal.ppat.1004202] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 05/01/2014] [Indexed: 11/19/2022] Open
Abstract
The emergence of variant Creutzfeldt Jakob Disease (vCJD) is considered a likely consequence of human dietary exposure to Bovine Spongiform Encephalopathy (BSE) agent. More recently, secondary vCJD cases were identified in patients transfused with blood products prepared from apparently healthy donors who later went on to develop the disease. As there is no validated assay for detection of vCJD/BSE infected individuals the prevalence of the disease in the population remains uncertain. In that context, the risk of vCJD blood borne transmission is considered as a serious concern by health authorities. In this study, appropriate conditions and substrates for highly efficient and specific in vitro amplification of vCJD/BSE agent using Protein Misfolding Cyclic Amplification (PMCA) were first identified. This showed that whatever the origin (species) of the vCJD/BSE agent, the ovine Q171 PrP substrates provided the best amplification performances. These results indicate that the homology of PrP amino-acid sequence between the seed and the substrate is not the crucial determinant of the vCJD agent propagation in vitro. The ability of this method to detect endogenous vCJD/BSE agent in the blood was then defined. In both sheep and primate models of the disease, the assay enabled the identification of infected individuals in the early preclinical stage of the incubation period. Finally, sample panels that included buffy coat from vCJD affected patients and healthy controls were tested blind. The assay identified three out of the four tested vCJD affected patients and no false positive was observed in 141 healthy controls. The negative results observed in one of the tested vCJD cases concurs with results reported by others using a different vCJD agent blood detection assay and raises the question of the potential absence of prionemia in certain patients.
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Affiliation(s)
- Caroline Lacroux
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France
| | - Emmanuel Comoy
- CEA, Institute of Emerging Diseases and Innovative Therapies (iMETI), Division of Prions and Related Diseases (SEPIA), Fontenay-aux-Roses, France
| | - Mohammed Moudjou
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, Jouy-en-Josas, France
| | - Armand Perret-Liaudet
- Hospices Civils de Lyon –Laboratoire Diagnostic Maladies à Prions; CNRS, INSERM, UCB Lyon1, Centre de Recherche en Neurosciences de Lyon, BioRan, Bron, France
| | - Séverine Lugan
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France
| | - Claire Litaise
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France
| | - Hugh Simmons
- VLA Weybridge, ASU, New Haw, Addlestone, Surrey, United Kingdom
| | | | - Isabelle Lantier
- INRA, UMR 1282 Infectiologie et Santé Publique, Nouzilly, France
| | - Vincent Béringue
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, Jouy-en-Josas, France
| | - Martin Groschup
- Friedrich-Loeffler-Institut, Greifswald, Insel Riems, Germany
| | - Guillaume Fichet
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, Jouy-en-Josas, France
- Franklab, Montigny-le-Bretonneux, France
| | - Pierrette Costes
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France
| | - Nathalie Streichenberger
- UR892 Virologie et Immunologie Moléculaires Centre de Recherche de Jouy-en-Josas, Jouy-en-Josas, France
| | - Frederic Lantier
- INRA, UMR 1282 Infectiologie et Santé Publique, Nouzilly, France
| | - Jean Philippe Deslys
- CEA, Institute of Emerging Diseases and Innovative Therapies (iMETI), Division of Prions and Related Diseases (SEPIA), Fontenay-aux-Roses, France
| | - Didier Vilette
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France
| | - Olivier Andréoletti
- UMR INRA ENVT 1225, Interactions Hôtes Agents Pathogènes, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France
- * E-mail:
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18
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Lantier I, Moreno CR, Berthon P, Sallé G, Pitel F, Schibler L, Gautier-Bouchardon AV, Boivin R, Weisbecker JL, François D, Bouix J, Cribiu EP, Elsen JM, Lantier F. Quantitative trait loci for resistance to infection in sheep using a live Salmonella Abortusovis vaccine. Anim Genet 2012; 43:632-5. [DOI: 10.1111/j.1365-2052.2011.02291.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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19
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Espinosa JC, Herva ME, Andréoletti O, Padilla D, Lacroux C, Cassard H, Lantier I, Castilla J, Torres JM. Transgenic mice expressing porcine prion protein resistant to classical scrapie but susceptible to sheep bovine spongiform encephalopathy and atypical scrapie. Emerg Infect Dis 2009; 15:1214-21. [PMID: 19751582 PMCID: PMC2815954 DOI: 10.3201/eid1508.081218] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [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] [Indexed: 11/22/2022] Open
Abstract
Atypical scrapie strain phenotypes may shift when transmitted to a new host. How susceptible pigs are to infection with sheep prions is unknown. We show, through transmission experiments in transgenic mice expressing porcine prion protein (PrP), that the susceptibility of this mouse model to bovine spongiform encephalopathy (BSE) can be enhanced after its passage in ARQ sheep, indicating that the pathogenicity of the BSE agent is modified after passage in sheep. Transgenic mice expressing porcine PrP were, nevertheless, completely resistant to infection with a broad panel of classical scrapie isolates from different sheep PrP genotypes and with different biochemical characteristics. The atypical (Nor98 like) isolate (SC-PS152) was the only scrapie isolate capable of transmission in these mice, although with a marked transmission barrier. Unexpectedly, the atypical scrapie agent appeared to undergo a strain phenotype shift upon transmission to porcine-PrP transgenic mice and acquired new strain properties, suggesting that atypical scrapie agent may exhibit different phenotypes depending on the host cellular PrP or other genetic factors.
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20
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Saunders GC, Lantier I, Cawthraw S, Berthon P, Moore SJ, Arnold ME, Windl O, Simmons MM, Andréoletti O, Bellworthy S, Lantier F. Protective effect of the T112 PrP variant in sheep challenged with bovine spongiform encephalopathy. J Gen Virol 2009; 90:2569-2574. [PMID: 19587133 DOI: 10.1099/vir.0.012724-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Sheep with an ARQ/ARQ PRNP genotype at codon positions 136/154/171 are highly susceptible to experimental infection with bovine spongiform encephalopathy (BSE). However, a number of sheep challenged orally or intracerebrally with BSE were clinically asymptomatic and found to survive or were diagnosed as BSE-negative when culled. Sequencing of the full PRNP gene open reading frame of BSE-susceptible and -resistant sheep indicated that, in the majority of Suffolk sheep, resistance was associated with an M112T PRNP variant (TARQ allele). A high proportion (47 of 49; 96%) of BSE-challenged wild-type (MARQ/MARQ) Suffolk sheep were BSE-infected, whereas none of the 20 sheep with at least one TARQ allele succumbed to BSE. Thirteen TARQ-carrying sheep challenged with BSE are still alive and some have survival periods equivalent to, or greater than, reported incubation periods of BSE in ARR/ARR and VRQ/VRQ sheep.
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Affiliation(s)
- G C Saunders
- Molecular Pathogenesis and Genetics Department, Veterinary Laboratories Agency (VLA Weybridge), New Haw, Addlestone, Surrey KT15 3NB, UK
| | - I Lantier
- INRA, UR1282, Infectiologie Animale et Santé Publique, F-37380 Nouzilly, France
| | - S Cawthraw
- Molecular Pathogenesis and Genetics Department, Veterinary Laboratories Agency (VLA Weybridge), New Haw, Addlestone, Surrey KT15 3NB, UK
| | - P Berthon
- INRA, UR1282, Infectiologie Animale et Santé Publique, F-37380 Nouzilly, France
| | - S J Moore
- Pathology Department, VLA Weybridge, New Haw, Addlestone, Surrey KT15 3NB, UK
| | - M E Arnold
- CERA, VLA Weybridge, New Haw, Addlestone, Surrey KT15 3NB, UK
| | - O Windl
- Molecular Pathogenesis and Genetics Department, Veterinary Laboratories Agency (VLA Weybridge), New Haw, Addlestone, Surrey KT15 3NB, UK
| | - M M Simmons
- Pathology Department, VLA Weybridge, New Haw, Addlestone, Surrey KT15 3NB, UK
| | - O Andréoletti
- UMR INRA-ENVT, Interactions Hôtes-Agents Pathogènes, Ecole Vétérinaire de Toulouse, F-310761 Toulouse, France
| | - S Bellworthy
- Pathology Department, VLA Weybridge, New Haw, Addlestone, Surrey KT15 3NB, UK
| | - F Lantier
- INRA, UR1282, Infectiologie Animale et Santé Publique, F-37380 Nouzilly, France
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21
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Vitezica ZG, Moreno CR, Lantier F, Lantier I, Schibler L, Roig A, François D, Bouix J, Allain D, Brunel JC, Barillet F, Elsen JM. Quantitative trait loci linked to PRNP gene controlling health and production traits in INRA 401 sheep. Genet Sel Evol 2007; 39:421-30. [PMID: 17612481 PMCID: PMC2682820 DOI: 10.1186/1297-9686-39-4-421] [Citation(s) in RCA: 11] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Accepted: 02/20/2007] [Indexed: 11/10/2022] Open
Abstract
In this study, the potential association of PrP genotypes with health and productive traits was investigated. Data were recorded on animals of the INRA 401 breed from the Bourges-La Sapinière INRA experimental farm. The population consisted of 30 rams and 852 ewes, which produced 1310 lambs. The animals were categorized into three PrP genotype classes: ARR homozygous, ARR heterozygous, and animals without any ARR allele. Two analyses differing in the approach considered were carried out. Firstly, the potential association of the PrP genotype with disease (Salmonella resistance) and production (wool and carcass) traits was studied. The data used included 1042, 1043 and 1013 genotyped animals for the Salmonella resistance, wool and carcass traits, respectively. The different traits were analyzed using an animal model, where the PrP genotype effect was included as a fixed effect. Association analyses do not indicate any evidence of an effect of PrP genotypes on traits studied in this breed. Secondly, a quantitative trait loci (QTL) detection approach using the PRNP gene as a marker was applied on ovine chromosome 13. Interval mapping was used. Evidence for one QTL affecting mean fiber diameter was found at 25 cM from the PRNP gene. However, a linkage between PRNP and this QTL does not imply unfavorable linkage disequilibrium for PRNP selection purposes.
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Affiliation(s)
- Zulma G Vitezica
- INSERM, U.563 CHU Purpan, BP 3028, 31024 Toulouse Cedex, France.
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22
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Vitezica ZG, Moreno CR, Lantier F, Lantier I, Schibler L, Roig A, François D, Bouix J, Allain D, Brunel JC, Barillet F, Elsen JM. Quantitative trait loci linked to PRNPgene controlling health and production traits in INRA 401 sheep. Genet Sel Evol 2007. [DOI: 10.1051/gse:2007012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Mercey R, Lantier I, Maurel MC, Grosclaude J, Lantier F, Marc D. Fast, reversible interaction of prion protein with RNA aptamers containing specific sequence patterns. Arch Virol 2006; 151:2197-214. [PMID: 16799875 DOI: 10.1007/s00705-006-0790-3] [Citation(s) in RCA: 24] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Accepted: 04/20/2006] [Indexed: 02/06/2023]
Abstract
One of the unsolved problems in prion diseases relates to the physiological function of cellular prion protein (PrP), of which a misfolded isoform is the major component of the transmissible spongiform encephalopathies agent. Knowledge of the PrP-binding molecules may help in elucidating its role and understanding the pathological events underlying prion diseases. Because nucleic acids are known to bind PrP, we attempted to identify the preferred RNA sequences that bind to the ovine recombinant PrP. An in vitro selection approach (SELEX) was applied to a pool of 80-nucleotide(nt)-long RNAs containing a randomised 40-nt central region. The most frequently isolated aptamer, RM312, was also the best ligand (20 nM KD value), according to both surface plasmon resonance and filter binding assays. The fast rates of association and dissociation of RM312 with immobilized PrP, which are reminiscent of biologically relevant interactions, could point to a physiological function of PrP towards cellular nucleic acids. The minimal sequence that we found necessary for binding of RM312 to PrP presents a striking similarity with one previously described PrP aptamer of comparable affinity. In addition, we here identify the two lysine clusters contained in the N-terminal part of PrP as its main nucleic-acid binding sites.
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Affiliation(s)
- R Mercey
- Infectiologie Animale et Santé Publique, Institut National de la Recherche Agronomique, Centre de Tours, Nouzilly, France
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Moreno CR, Lantier F, Lantier I, Sarradin P, Elsen JM. Detection of New Quantitative Trait Loci for Susceptibility to Transmissible Spongiform Encephalopathies in Mice. Genetics 2003; 165:2085-91. [PMID: 14704188 PMCID: PMC1462892 DOI: 10.1093/genetics/165.4.2085] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AbstractSusceptibility to scrapie is largely controlled by the PRNP gene in mice and in several other species. However, individuals with identical scrapie susceptibility Prnp alleles may have very different incubation periods, suggesting the influence of other environmental and genetic factors. To detect loci influencing susceptibility to TSE, two mouse lines carrying the same PRNP genotype (C57BL and RIII) were crossed to produce an F2 population inoculated intracerebrally with a mouse-adapted scrapie strain. Linkage was studied between 72 markers and the age of death of F2 animals. Six QTL were detected, two at a genome-wide significant level (chromosomes 5 and 7) and four at a genome-wide suggestive level (chromosomes 4, 6, 8, and 17). Our results confirmed the existence of some QTL that were detected previously (chromosomes 4, 6, 7, and 8) while others were found only in the present study (chromosomes 5 and 17). Furthermore, it seems that some QTL (chromosomes 4 and 8) are involved in resistance to scrapie as well as to BSE.
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Affiliation(s)
- Carole R Moreno
- Station d'Amélioration Génétique des Animaux, Institut National de la Recherche Agronomique, 31326 Auzeville, France.
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25
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Maurel MC, Roy F, Hervé V, Bertin J, Vaiman D, Cribiu E, Manfredi E, Bouvier F, Lantier I, Boue P, Guillou F. Réponse immunitaire à la eCG utilisée dans le traitement de l’induction d’ovulation chez la chèvre et la brebis. ACTA ACUST UNITED AC 2003; 31:766-9. [PMID: 14499724 DOI: 10.1016/s1297-9589(03)00214-5] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In dairy goats and ewes the use of equine Chorionic Gonadotropin (eCG) as a convenient hormone for the induction of ovulation is necessary for out-of-season breeding and artificial insemination (AI). Treatment for induction and synchronization of ovulation consists of a progestagen delivered by vaginal sponge, followed by an eCG injection. In some females, the first injection of eCG induces a humoral response with high concentrations of anti-eCG antibodies in contrast to other females displaying a very low concentration of anti-eCG antibodies. Females eliciting a low response were also poor responders after the following treatments. Conversely, high responders at the first treatment systematically yielded high immune responses upon the following treatment. By a molecular genetic approach using microsatellites we showed that the anti-eCG immune response phenotypes were associated with MHC class II polymorphism. Females with high residual antibody concentrations at the time of eCG injection exhibited a much lower kidding rate than other females did. Lower fertility of these females, inseminated at a fixed time after eCG treatment (43H for goats and 55H for ewes), might be due to the delay in estrus occurrence and the pre ovulatory LH surge. Consequently, under field conditions old females selected for AI are only those with low residual anti-eCG antibody concentrations and old females with high residual antibody concentration are culled from AI breeding because of their low fertility during the previous year. So we have undertaken comparative studies to establish if the anti-eCG immune response is correlated with the global immunity in animals.
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Affiliation(s)
- M-C Maurel
- Unité de recherche de physiologie de la reproduction et des comportements, UMR 6073 INRA, CNRS, université de Tours, 37380 Nouzilly, France.
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26
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Beaumont C, Protais J, Pitel F, Leveque G, Malo D, Lantier F, Plisson-Petit F, Colin P, Protais M, Le Roy P, Elsen JM, Milan D, Lantier I, Neau A, Salvat G, Vignal A. Effect of two candidate genes on the Salmonella carrier state in fowl. Poult Sci 2003; 82:721-6. [PMID: 12762392 DOI: 10.1093/ps/82.5.721] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Selection for increased resistance to Salmonella carrier-state (defined as the persistency of the bacteria 4 wk after inoculation) could reduce the risk for the consumer of food toxi-infections. The effects of two genomic regions on chromosomes 7 and 17 harboring two genes, NRAMP1 (SLC11A1) and TLR4, known to be involved in the level of chicken infection 3 d after inoculation by Salmonella were thus tested on a total of 331 hens orally inoculated at the peak of lay with 10(9) bacteria. The animals and their parents were genotyped for a total of 10 microsatellite markers mapped on chromosomes 7 and 17. Using maximum likelihood analysis and interval mapping, it was found that the SLC11A1 region was significantly involved in the control of the probability of spleen contamination 4 wk after inoculation. Single nucleotide polymorphisms (SNP) within the SLC11A1 and TLR4 gene were tested on those animals as well as on a second batch of 279 hens whose resistance was assessed in the same conditions. As the former was significantly associated with the risk of spleen contamination and the number of contaminated organs, SLC11A1 appears to be involved in the control of resistance to Salmonella carrier state. The involvement of the TLR4 gene was also highly suspected as a significant association between SNP within the gene, and the number of contaminated organs was detected.
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Affiliation(s)
- C Beaumont
- Station de Recherches Avicoles, INRA, 37380 Nouzilly, France.
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27
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Moreno CR, Lantier F, Berthon P, Gautier-Bouchardon AV, Boivin R, Lantier I, Brunel JC, Weisbecker JL, François D, Bouix J, Elsen JM. Genetic parameters for resistance to the Salmonella abortusovis vaccinal strain Rv6 in sheep. Genet Sel Evol 2003; 35:199-217. [PMID: 12633533 PMCID: PMC2732695 DOI: 10.1186/1297-9686-35-2-199] [Citation(s) in RCA: 15] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
An experimental population (1216 lambs from 30 sires) of the Inra401 sheep was created in an Inra flock to allow QTL detection for susceptibility to Salmonella infection, wool and carcass traits. The Inra401 is a sheep composite line developed from two breeds: Berrichon du Cher and Romanov. At 113 days of age on average, the lambs were inoculated intravenously with 10(8) Salmonella abortusovis Rv6 (vaccinal strain). They were slaughtered 10 days after the inoculation. Several traits were measured at inoculation and/or slaughtering to estimate the genetic resistance of the lambs to Salmonella infection: specific IgM and IgG1 antibody titres, body weight loss, spleen and pre-scapular node weights and counts of viable Salmonella persisting in these organs. This paper presents a quantitative analysis of the genetic variability of the traits related to salmonellosis susceptibility. The heritabilities of the traits varied between 0.10 and 0.64 (significantly different from zero). Thus, in sheep as well as in other species, the determinism of resistance to Salmonella infection is under genetic control. Moreover, the correlations between the traits are in agreement with the known immune mechanisms. The genetic variability observed should help QTL detection.
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Affiliation(s)
- Carole R Moreno
- Station d'amélioration génétique des animaux, Institut national de la recherche agronomique, BP 27, 31326 Castanet-Tolosan Cedex, France.
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28
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Girard-Santosuosso O, Lantier F, Lantier I, Bumstead N, Elsen JM, Beaumont C. Heritability of susceptibility to Salmonella enteritidis infection in fowls and test of the role of the chromosome carrying the NRAMP1 gene. Genet Sel Evol 2002; 34:211-9. [PMID: 12081808 PMCID: PMC2705428 DOI: 10.1186/1297-9686-34-2-211] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
373 thirteen-week-old chicks issued from a commercial cross and 312 chickens from the L2 line were intravenously inoculated with 10 (6) Salmonella enteritidis and the numbers of Salmonella in the spleen, liver and genital organs were assessed 3 days later. Heritabilities of the number of Salmonella were estimated at 0.02 +/-0.04 and 0.05 +/-0.05 in the liver; at 0.29 +/-0.07 and 0.10 +/-0.06 in the spleen; and at 0.16 +/- 0.05 and 0.11 +/-0.08 in the genital organs, in the first and second experiments, respectively. The difference between the two experiments could result from sampling variations and from differences in the genetic structure of the two populations possibly including both heterosis and additive effects as well as their interaction in the first experiment. Genetic correlations between the number of bacteria in the genital organs and liver (0.56 +/-0.58 and 0.76 +/- 0.32 in the first and second experiments, respectively) and spleen (0.37 +/-0.24 and 0.79 +/-0.23) were positive. Moreover a significant within-sire effect of VIL1, a marker gene for NRAMP1, was observed in 117 progeny resulting from 25 informative matings. These results indicate that there are genetic differences in the resistance to visceral infection by S. enteritidis in these commercial egg-laying flocks, and suggest that these differences are at least partly due to genetic polymorphism in the NRAMP1 region.
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Affiliation(s)
- Odile Girard-Santosuosso
- Département de santé animale, Station de pathologie infectieuse et immunologie, Institut national de la recherche agronomique, 37380 Nouzilly, France
| | - Frédéric Lantier
- Département de santé animale, Station de pathologie infectieuse et immunologie, Institut national de la recherche agronomique, 37380 Nouzilly, France
| | - Isabelle Lantier
- Département de santé animale, Station de pathologie infectieuse et immunologie, Institut national de la recherche agronomique, 37380 Nouzilly, France
| | - Nat Bumstead
- Compton laboratory, Institute for Animal Health, Compton, Newbury, Berkshire, BBSRC, G20 7NN, UK
| | - Jean-Michel Elsen
- Département de génétique animale, Station d'amélioration génétique des animaux, Institut national de la recherche agronomique, 31326 Castanet-Tolosan, France
| | - Catherine Beaumont
- Département de génétique animale, Station de recherches avicoles, Institut national de la recherche agronomique, 37380 Nouzilly, France
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29
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Ponz R, Moreno C, Allain D, Elsen JM, Lantier F, Lantier I, Brunel JC, Pérez-Enciso M. Assessment of genetic variation explained by markers for wool traits in sheep via a segment mapping approach. Mamm Genome 2001; 12:569-72. [PMID: 11420622 DOI: 10.1007/s003350030007] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2000] [Accepted: 03/15/2001] [Indexed: 11/24/2022]
Affiliation(s)
- R Ponz
- Station d'Amélioration Génétique des Animaux, INRA, BP27, 31326 Castanet-Tolosan, France
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30
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Tabet-Aoul K, Schibler L, Vaiman D, Oustry-Vaiman A, Lantier I, Saidi-Mehtar N, Cribiu EP, Lantier F. Regional characterization of a hamster-sheep somatic cell hybrid panel. Mamm Genome 2000; 11:37-40. [PMID: 10602990 DOI: 10.1007/s003350010007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The regional characterization of a previously obtained hamster-sheep hybrid panel is reported. Using data available from ruminant maps (sheep, cattle, and goat), we have selected a set of 300 markers and have analyzed them by PCR in this hybrid panel. Results obtained for 204 markers show the presence of all sheep chromosomes (including gonosomes) in entire or fragmented form. Analysis of syntenies has given 130 types of answer defining segments of variable sizes. This study has led to the regional characterization of this panel and provides comparative data on a set of bovine and caprine markers. With the level of characterization now achieved for this hybrid panel, the regional assignment of new genes or markers to sheep chromosomes can be rapidly obtained. Finally, this panel will help to collect new data for comparative mapping of domestic animals and to highlight the conservation of syntenic groups between closely related species, that is, sheep, cattle, and goat.
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Affiliation(s)
- K Tabet-Aoul
- Laboratoire de Pathologie Infectieuse et Immunologie, INRA-Tours, 37380 Nouzilly, France
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31
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Roy F, Maurel MC, Combes B, Vaiman D, Cribiu EP, Lantier I, Pobel T, Delétang F, Combarnous Y, Guillou F. The negative effect of repeated equine chorionic gonadotropin treatment on subsequent fertility in Alpine goats is due to a humoral immune response involving the major histocompatibility complex. Biol Reprod 1999; 60:805-13. [PMID: 10084952 DOI: 10.1095/biolreprod60.4.805] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
In dairy goats, the use of eCG as a convenient hormone for the induction of ovulation is necessary for out-of-season breeding and artificial insemination. However, repeated eCG treatments are followed by decreased fertility in goats inseminated at a fixed time after treatment. In this report, we show the presence of anti-eCG antibodies in plasma of treated goats. A 500 IU eCG injection induces a humoral response, with variable concentrations of anti-eCG antibody being produced in individual goats. The analysis of successive anti-eCG immune responses over several years has demonstrated the existence of different populations of goats, defined as low, medium, and high responders. By the use of two caprine microsatellites located inside (OLADRB) and outside (BM1258) the major histocompatibility complex (MHC), a significant association (p < 0.05) between the anti-eCG antibody response and some MHC-DRB alleles was found. Goats with high antibody concentrations at the time of eCG injection (> 2.5 microg/ml) exhibited a much lower kidding rate than did other females (41.3% vs. 66.7%). Lower fertility of these goats, inseminated at a fixed time after eCG treatment, might be due to the observed delay in estrus occurrence and the preovulatory LH surge.
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Affiliation(s)
- F Roy
- INRA, Unité Gonadotropines, URA CNRS 1291, Station PRMD, 37380 Nouzilly, France
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32
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Bussmann V, Lantier I, Pitel F, Patri S, Nau F, Gros P, Elsen JM, Lantier F. cDNA cloning, structural organization, and expression of the sheep NRAMP1 gene. Mamm Genome 1998; 9:1027-31. [PMID: 9880672 DOI: 10.1007/s003359900919] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Mouse resistance to several intracellular pathogens including Mycobacteria, Leishmania, and Salmonella is under the control of the Chromosome (Chr) 1 Natural Resistance Associated Macrophage Protein I gene (Nramp1). This gene could have an economic and health importance for domestic animals and humans as well. Therefore, equivalents of the NRAMP1 gene have been cloned by several research groups in various animal species. To study in sheep the influence of the NRAMP1 gene on the susceptibility to intracellular pathogens induced diseases, we have cloned the sheep NRAMP1 cDNA by screening a splenic cDNA library. The genomic organization of the sheep NRAMP1 gene was then determined by sequencing the exon/intron boundaries. The transcription start points (tsp) from the NRAMP1 mRNA have been located with primer extension experiments. RT-PCR reactions have been used to determine the profile of mRNA expression of this gene.
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Affiliation(s)
- V Bussmann
- Pathologie Infectieuse et Immunologie, INRA de Tours-Nouzilly, 37380 Nouzilly, France
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33
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Gautier AV, Lantier I, Lantier F. Mouse susceptibility to infection by the Salmonella abortusovis vaccine strain Rv6 is controlled by the Ity/Nramp 1 gene and influences the antibody but not the complement responses. Microb Pathog 1998; 24:47-55. [PMID: 9466946 DOI: 10.1006/mpat.1997.0168] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Early growth of Salmonella typhimurium in spleen and liver of mice is controlled by the mouse chromosome 1 locus Ity/Nramp 1. Genetic control of resistance to the attenuated vaccine strain Rv6 of Salmonella abortusovis was studied in mice infected by the intravenous route. Comparison of kinetics of bacterial colonization of spleen and liver in two congenic BALB/c-susceptible (Itys) and -resistant (Ityr) mouse lines showed that BALB/c mice (Itys) were significantly more susceptible to infection than C.D2 mice (Ityr) suggesting that infection by this vaccine strain is controlled by a gene which is close or identical to Ity/Nramp 1. Congenic mice also differed in their anti-Salmonella antibody response, measured by ELISA: susceptible mice had a significantly higher antibody level than resistant mice, whatever the immunoglobulin isotype (IgM, IgG1, IgG2a, IgG3, IgA, and total immunoglobulins). The two congenic BALB/c mouse lines had equal serum C3c levels in response to infection. However, we observed a highly significant difference according to the sex of mice, suggesting a role of sex hormones in the regulation of the level of some complement factors. These results, obtained with congenic mice, strongly suggest that the Ity/Nramp 1 locus controls susceptibility to infection by the S. abortusovis vaccine strain Rv6 and influences the antibody response.
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Affiliation(s)
- A V Gautier
- Laboratoire de Pathologie Infectieuse et d>>Immunologie, INRA Centre de Tours, Nouzilly, 37380, France
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34
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Gohin I, Olivier M, Lantier I, Pépin M, Lantier F. Analysis of the immune response in sheep efferent lymph during Salmonella abortusovis infection. Vet Immunol Immunopathol 1997; 60:111-30. [PMID: 9533271 DOI: 10.1016/s0165-2427(97)00090-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The efferent lymph duct of the ovine prescapular lymph node was cannulated, and Salmonella abortusovis (SAO), a specific pathogen for sheep inducing abortion and mortality of newborn lambs, was inoculated by the subcutaneous route in this lymph node drained area. While the prescapular lymph node draining the inoculation site represented an efficient barrier for the vaccinal SAO Rv6 strain spreading, SAO 15/5 virulent bacteria were steadily detected in efferent lymph of infected sheep. The inoculation of the virulent strain of SAO induced a greater increase of the cell output than did the attenuated vaccinal strain, but proportions of blast cells appearing in the efferent lymph were similar in both cases. Flow cytometry analysis showed that B and T cell outputs were both increased during SAO infections, but while T cell subset proportions slightly decreased, B cell percentages significantly rose, and, at the peak response, almost all of the lymphoblast cells were activated B cells. Typical antibody profiles characteristic of a primary immune response were observed, and antibody titres were greater in the efferent lymph of animals inoculated with the virulent strain of SAO. Many of the cytokine mRNAs we investigated were steadily detected by RT-PCR in efferent lymph cells of control sheep, but frequencies of detection of IL-2, IFN gamma, IL-1 beta and TNF alpha mRNAs were augmented in efferent lymph cells following inoculation of both SAO virulent or vaccinal strains. IL-10 and IL-8 mRNAs could only be detected after a SAO inoculation, while detection of IL-4 mRNAs was increased only in efferent lymph cells from SAO virulent strain-infected sheep. The efferent lymph cannulation technique thus appeared a very powerful way to study the in vivo development of the immune response to SAO, in its natural host, the sheep.
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Affiliation(s)
- I Gohin
- Laboratoire de Pathologie Infectieuse et Immunologie, Institut National de la Recherche Agronomique, Centre de Tours, Nouzilly, France.
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35
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Girard-Santosuosso O, Bumstead N, Lantier I, Protais J, Colin P, Guillot JF, Beaumont C, Malo D, Lantier F. Partial conservation of the mammalian NRAMP1 syntenic group on chicken chromosome 7. Mamm Genome 1997; 8:614-6. [PMID: 9250872 DOI: 10.1007/s003359900515] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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36
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Girard-Santosuosso O, Lantier I, Millet N, Mouline C, Guillot JF, Protais J, Colin P, Beaumont C, Lantier F. TaqI and HindIII RFLPs at the chicken PAX3 locus. Anim Genet 1996; 27:374-5. [PMID: 8930088 DOI: 10.1111/j.1365-2052.1996.tb00987.x] [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] [Indexed: 02/03/2023]
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37
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Girard-Santosuosso O, Lantier I, Millet N, Mouline C, Guillot JF, Protais J, Colin P, Beaumont C, Lantier F. BamHI RFLP at the chicken ACRG locus. Anim Genet 1996; 27:375. [PMID: 8930089 DOI: 10.1111/j.1365-2052.1996.tb00988.x] [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] [Indexed: 02/03/2023]
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38
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Girard-Santosuosso O, Lantier I, Millet N, Mouline C, Guillot JF, Protais J, Colin P, Beaumont C, Lantier F. PvuII PCR polymorphism at the chicken VIL locus. Anim Genet 1996; 27:375-6. [PMID: 8930090 DOI: 10.1111/j.1365-2052.1996.tb00989.x] [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] [Indexed: 02/03/2023]
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39
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Affiliation(s)
- F Pitel
- Laboratoire de Génétique Cellulaire, INRA-CRT, Castanet-Tolosan, France
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40
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Pitel F, Lantier I, Riquet J, Lanneluc I, Tabet-Aoul K, Saïdi-Mehtar N, Lantier F, Gellin J. Cloning, sequencing, and localization of an ovine fragment of the NRAMP gene, a candidate for the ITY/LSH/BCG gene. Mamm Genome 1994; 5:834-5. [PMID: 7894181 DOI: 10.1007/bf00292035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- F Pitel
- Laboratoire de Génétique Cellulaire, INRA-CRT, Castanet-Tolosan, France
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41
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Berthon P, Gohin I, Lantier I, Olivier M. Humoral immune response to Salmonella abortusovis in sheep: in vitro induction of an antibody synthesis from either sensitized or unprimed lymph node cells. Vet Immunol Immunopathol 1994; 41:275-94. [PMID: 7941308 PMCID: PMC7119719 DOI: 10.1016/0165-2427(94)90102-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In vitro culture conditions were determined to induce an anti-Salmonella abortusovis antibody synthesis from lymph node leucocytes of three immunized sheep and two unprimed lambs maintained in culture in the presence of heat-inactivated bacteria for 2 weeks. Humoral immune responses were assessed by enumerating specific antibody-secreting cells using ELISASPOT and by titrating immunoglobulins secreted into culture supernatants using ELISA techniques. Optimal secondary antibody response was observed from cultures performed with fetal calf serum (compared with horse serum) and with an antigen concentration of one to ten bacteria per cell. This kind of antigenic stimulation allowed induction of numerous antibody-secreting cells without adsorption of the secreted antibodies. Maximal numbers of antibody-secreting cells could reach a rate of 1% of the sheep leucocytes initially put into culture. Kinetic profiles of antibody production from boosted lymph node cells were characterized by an ascending phase from the sixth to the twelfth day of culture and then showed a plateau phase until Day 14. Most of the responses were composed of IgM and IgG1 antibodies, traces of IgG2 being detected at the end of experiments. From the twelfth day of antigenic stimulation, the IgM isotype was preferentially expressed with high antigen concentration (100 bacteria per cell), whereas the highest amounts of IgG1 were detected at lower concentration (one to ten bacteria per cell). While anti-Salmonella IgM appeared to be mainly specific for the lipopolysaccharide (LPS) cell wall fraction, some IgG1 recognized other bacterial antigens. Kinetic profiles and magnitudes of primary antibody responses induced in vitro from lamb lymph node cells did not differ from those defined in cultures of sheep boosted leucocytes. But these immune reactions were mainly made up of anti-LPS IgM. Few anti-Salmonella IgG1 were detected from the tenth day of culture. So these in vitro assays allowed induction of antibody synthesis from either in vivo sensitized or unprimed sheep lymph node leucocytes. This methodology would permit achievement of more detailed studies on interactions between Salmonella and lymph node leucocytes, leading to a better understanding of the mechanisms controlling bacterial dissemination through the lymphoid tissue.
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Affiliation(s)
- P Berthon
- Institut National de la Recherche Agronomique, Centre de Tours, Nouzilly, France
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42
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Pitel F, Lantier I, Tabet-Aoul K, Saidi-Mehtar N, Elsen JM, Lantier F, Gellin J. TNP1 gene: a sheep polymorphic marker for a conserved region among mammals. Mamm Genome 1994; 5:390-2. [PMID: 8043958 DOI: 10.1007/bf00356562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- F Pitel
- Laboratoire de Génétique Cellulaire, INRA, Centre de recherches de Toulouse, Castanet-Tolosan, France
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43
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Guilloteau L, Buzoni-Gatel D, Bernard F, Lantier I, Lantier F. Salmonella abortusovis infection in susceptible BALB/cby mice: importance of Lyt-2+ and L3T4+ T cells in acquired immunity and granuloma formation. Microb Pathog 1993; 14:45-55. [PMID: 8321117 DOI: 10.1006/mpat.1993.1005] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The role of T cells in granulomatous responses and in acquired immunity against Salmonella abortusovis (SAO) infection was studied in a murine model. Mice were subcutaneously (s.c.) vaccinated with a live attenuated strain of SAO. One month after vaccination, the transfer of primed spleen cells (1 x 10(8) cells per mouse) to syngeneic recipient mice conferred a significant protection of 3 log10, measured by spleen colonization on day 6 after s.c. challenge. In vitro treatment of spleen cells, before the transfer, with anti-Lyt-2 monoclonal antibody (IgG2b isotype MAb) and complement significantly impaired the protective activity. Treatment with anti-L3T4 MAb also diminished transferred protection, but to a lesser degree. Depletion of both L3T4+ and Lyt-2+ T cells completely abrogated protection. MAb treatment of spleen cells in vitro did not seem to have any effect on antibody response in recipient mice. Six days after the challenge protected recipient mice showed organized granulomas in the liver containing Mac-1+ macrophages and L3T4+ T cells. In non-protected mice at 6 days post-challenge, large infiltrates of T lymphocytes and macrophages were observed, but as numerous lesions with necrosis of hepatocytes; no granuloma were seen. In our experimental conditions, Lyt-2+ and L3T4+ T cells appeared to play, alone and in synergy, a role in vaccine-induced immunity against SAO and hepatic granulomas may contribute to the control of the infection.
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MESH Headings
- Animals
- Antibodies, Bacterial/blood
- Antigens, Differentiation, T-Lymphocyte
- Antigens, Ly
- Bacterial Vaccines
- Female
- Genetic Predisposition to Disease
- Granuloma/immunology
- Granuloma/microbiology
- Immunotherapy, Adoptive
- Liver Diseases/immunology
- Liver Diseases/microbiology
- Mice
- Mice, Inbred BALB C/genetics
- Mice, Inbred BALB C/immunology
- Salmonella/immunology
- Salmonella/physiology
- Salmonella Infections, Animal/genetics
- Salmonella Infections, Animal/immunology
- Salmonella Infections, Animal/microbiology
- Spleen/cytology
- T-Lymphocyte Subsets/immunology
- Vaccination
- Vaccines, Attenuated
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Affiliation(s)
- L Guilloteau
- Unité Génétique et Immunité, Institut National de la Recherche Agronomique, Centre de Tours, Nouzilly, France
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44
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Aynaud J, Bernard S, Bottreau E, Lantier I, Salmon H, Vannier P. Induction of lactogenic immunity to transmissible gastroenteritis virus of swine using an attenuated coronavirus mutant able to survive in the physicochemical environment of the digestive tract. Vaccine 1992. [PMCID: PMC7131406 DOI: 10.1016/0264-410x(92)90273-m] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Kaeffer B, Bottreau E, Marcon D, Olivier M, Lantier I, Salmon H. Histocompatible miniature pig (d/d haplotype): generation of hybridomas secreting A or M monoclonal antibody. Hybridoma (Larchmt) 1991; 10:731-44. [PMID: 1667778 DOI: 10.1089/hyb.1991.10.731] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Two Hypoxanthine/Aminopterin/Thymidine-sensitive cell sublines (L142 and L231) have been derived from independent lymphoblastoid cell lines of B lineage. After propagation for more than 100 population doublings (1 year) in culture, these cells still retained a doubling time between 19 to 20 hours, near diploïdy and relatively low (L142) and high (L231) secretion rate of M immunoglobulins. Near diploid hybrid cells were easily generated with leukocytes from the spleen, the gut lamina propria or the mesenteric lymph nodes of pigs immunized against the transmissible gastroenteritis virus. Both the tumor sublines and the B cells were derived from histocompatible miniature pigs (d/d haplotype). Demonstration of fusion between the tumor sublines and B-cells was supported by the selection of hybridomas making the antigen-specific heavy (alpha isotype) and light chains from the B cell parent as well as the heavy and light chains of the lymphoblastoid parent. Moreover, some hybridomas were found to secrete only class A (dimeric) or class M immunoglobulins (0.2-10 micrograms/ml). Forty hybridomas secreted antibodies reactive in a virus-enzyme-linked cell immunoassay against cell-bound antigens and two were found to produce an antibody active only against the infected cell monolayer. Construction of intraspecies hybridoma can be used to perpetuate lymphocyte subsets useful for the study of the porcine immune system.
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Affiliation(s)
- B Kaeffer
- Laboratoire de Pathologie Infectieuse et Immunologie INRA, Nouzilly, France
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46
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To LT, Bernard S, Lantier I. Fixed-cell immunoperoxidase technique for the study of surface antigens induced by the coronavirus of transmissible gastroenteritis (TGEV). Vet Microbiol 1991; 29:361-8. [PMID: 1663290 PMCID: PMC7117110 DOI: 10.1016/0378-1135(91)90143-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/1991] [Indexed: 12/28/2022]
Abstract
An immunoperoxidase technique performed on the TGEV-infected cells was developed for detection of virus-induced antigens. The presence of M antigen of TGEV on the surface of infected cells was demonstrated by this technique. This finding is in contrast to the M protein of murine hepatitis coronavirus which migrates to the Golgi apparatus but is not transported to the plasma membrane. The time course of appearance M and S antigens on the surface of TGEV-infected cell can be studied by this technique.
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Affiliation(s)
- L T To
- Laboratory of Virology, Institute of Veterinary Research, Bach mai-Hànôi, Viêtnam
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47
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Aynaud JM, Bernard S, Bottreau E, Lantier I, Salmon H, Vannier P. Induction of lactogenic immunity to transmissible gastroenteritis virus of swine using an attenuated coronavirus mutant able to survive in the physicochemical environment of the digestive tract. Vet Microbiol 1991; 26:227-39. [PMID: 1850894 PMCID: PMC7117156 DOI: 10.1016/0378-1135(91)90016-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A transmissible gastroenteritis (TGE) coronavirus mutant (188-SG), selected as attenuated and resistant to acidity and proteases of the digestive tract of adult pigs, was used as vaccine ("Nouzilly strain") in sows to protect suckling piglets against a challenge exposure carried out with a highly virulent TGEV strain. The pregnant sows were immunized once (42-49 days before farrowing) or twice (42-49 and 7-15 days before farrowing) by the oral, intramuscular or conjunctival route with the 188-SG strain. Sows exposed to virulent TGEV in the field and experimentally infected sows (two oral inoculations during pregnancy) were used as positive controls leading to high protection. The neutralizing antibody response to vaccination and/or infection was studied in serum and milk. No protection against mortality was observed in the litters of (1) the nine seronegative, susceptible sows, with piglet mortality of 65/70, (2) the seven once orally vaccinated sows, with mortality of 44/54, (3) the seven sows vaccinated twice by the conjunctival route, with mortality of 55/76. Moderate protection was observed in (1) the eight sows vaccinated intramuscularly twice with piglet mortality of 36/90, (2) the seven orally and intramuscularly vaccinated sows with piglet mortality of 31/51. In of 3 contrast, improved protection was observed in (1) the 10 sows vaccinated twice orally, with piglet mortality of 23/95, (2) the four naturally infected sows with piglet mortality of 6/41, (3) the six sows experimentally infected with virulent TGEV with piglet mortality of 1/59. No correlation was found between neutralizing antibodies titers in serum and milk and protection rate of the piglets. The results indicate that relative protective lactogenic immunity against TGEV is induced only by repeated ingestion of the attenuated 188-SG strain of TGEV.
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MESH Headings
- Administration, Oral
- Animals
- Animals, Suckling
- Antibodies, Viral/biosynthesis
- Antibodies, Viral/blood
- Female
- Gastroenteritis, Transmissible, of Swine/prevention & control
- Immunity, Maternally-Acquired
- Immunization, Secondary
- Injections, Intramuscular/veterinary
- Lactation
- Milk/immunology
- Swine
- Transmissible gastroenteritis virus/immunology
- Vaccination/veterinary
- Vaccines, Attenuated/administration & dosage
- Vaccines, Attenuated/immunology
- Viral Vaccines/administration & dosage
- Viral Vaccines/immunology
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Affiliation(s)
- J M Aynaud
- Institut National de la Recherche Agronomique, Laboratoire de Pathologie Porcine, Nouzilly, France
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48
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Bernard S, Shirai J, Lantier I, Bottreau E, Aynaud JM. Lactogenic immunity to transmissible gastroenteritis (TGE) of swine induced by the attenuated Nouzilly strain of TGE virus: passive protection of piglets and detection of serum and milk antibody classes by ELISA. Vet Immunol Immunopathol 1990; 24:37-47. [PMID: 2156374 PMCID: PMC7119562 DOI: 10.1016/0165-2427(90)90076-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Piglets of eight sows vaccinated by different routes with the attenuated TGE mutant coronavirus, Nouzilly (N) strain, and piglets from two field seropositive sows were challenged with a virulent TGE strain. On the day of challenge and 10 days after challenge, milk and serum samples from sows were analysed for their level of neutralizing antibodies, total immunoglobulin classes and TGE antibody classes by an ELISA. No direct relationship was seen between the level of protection of the litters and the titres of the different antibody classes on the day of challenge. However, an inverse correlation was seen 10 days after challenge between protection and the level of TGE antibodies.
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MESH Headings
- Animals
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Cells, Cultured
- Coronaviridae/immunology
- Enzyme-Linked Immunosorbent Assay
- Female
- Gastroenteritis, Transmissible, of Swine/immunology
- Gastroenteritis, Transmissible, of Swine/prevention & control
- Immunity
- Immunization, Passive
- Immunoglobulins/analysis
- Immunoglobulins/classification
- Immunoglobulins/immunology
- Milk/immunology
- Neutralization Tests
- Pregnancy
- Swine
- Transmissible gastroenteritis virus/immunology
- Vaccines, Attenuated/administration & dosage
- Vaccines, Attenuated/immunology
- Viral Vaccines/administration & dosage
- Viral Vaccines/immunology
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Affiliation(s)
- S Bernard
- Institut National de la Recherche Agronomique, Laboratoire de Pathologie Porcine, Nouzilly, France
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49
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Bernard S, Lantier I, Laude H, Aynaud JM. Detection of transmissible gastroenteritis coronavirus antigens by a sandwich enzyme-linked immunosorbent assay technique. Am J Vet Res 1986; 47:2441-4. [PMID: 3024536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A new sandwich enzyme-linked immunosorbent assay, using monoclonal and polyclonal antibodies, was developed to detect transmissible gastroenteritis virus antigens from cell culture and from intestinal wash or feces obtained from experimentally infected pigs. This technique was shown to be suitable for the detection of virulent field strain unadapted to cell culture. Cross reactions had not been observed with other enteric pathogens, rotavirus, porcine epizootic diarrhea virus, and Escherichia coli.
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50
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Nguyen TD, Bottreau E, Bernard S, Lantier I, Aynaud JM. Neutralizing secretory IgA and IgG do not inhibit attachment of transmissible gastroenteritis virus. J Gen Virol 1986; 67 ( Pt 5):939-43. [PMID: 3009692 DOI: 10.1099/0022-1317-67-5-939] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Secretory IgA (sIgA) and IgG from porcine milk and serum, respectively, [3H]uridine-labelled virus, swine testis and pig kidney cell lines were used to examine the neutralized virus-cell interaction. Transmissible gastroenteritis virus (TGEV), 99.99% neutralized by immunoglobulin, was able to attach to the cells. Moreover, sIgA enhanced virus attachment. However, the neutralized virus was unable to enter cells, as demonstrated by the action of proteinase K which removed it from the cell surface. It was also found that pre-attached virus was still neutralizable and that IgG and sIgA had similar TGEV-neutralizing capacities.
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