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Bernal AM, Sosa FN, Todero MF, Montagna DR, Vermeulen ME, Fernández-Brando RJ, Ramos MV, Errea AJ, Rumbo M, Palermo MS. Nasal immunization with H7 flagellin protects mice against hemolytic uremic syndrome secondary to Escherichia coli O157:H7 gastrointestinal infection. Front Cell Infect Microbiol 2023; 13:1143918. [PMID: 37260706 PMCID: PMC10227447 DOI: 10.3389/fcimb.2023.1143918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/26/2023] [Indexed: 06/02/2023] Open
Abstract
Introduction Shiga-toxin (Stx) producing Escherichia coli (STEC) O157:H7 is the most frequent serotype associated with hemolytic uremic syndrome (HUS) after gastrointestinal infections. Protection against HUS secondary to STEC infections has been experimentally assayed through the generation of different vaccine formulations. With focus on patients, the strategies have been mainly oriented to inhibit production of Stx or its neutralization. However, few approaches have been intended to block gastrointestinal phase of this disease, which is considered the first step in the pathogenic cascade of HUS. The aim of this work was to assay H7 flagellin as a mucosal vaccine candidate to prevent the systemic complications secondary to E. coli O157:H7 infections. Materials and methods The cellular and humoral immune response after H7 nasal immunization in mice were studied by the analysis of systemic and intestinal specific antibody production, as well as cytokine production and lymphocyte proliferation against H7 flagellin ex vivo. Results Immunized mice developed a strong and specific anti-H7 IgG and IgA response, at systemic and mucosal level, as well as a cellular Th1/Th2/Th17 response. H7 induced activation of bone marrow derived dendritic cells in vitro and a significant delayed-type hypersensitivity (DTH) response in immunized mice. Most relevant, immunized mice were completely protected against the challenge with an E. coli O157:H7 virulent strain in vivo, and surviving mice presented high titres of anti-H7 and Stx antibodies. Discussion These results suggest that immunization avoids HUS outcome and allows to elicit a specific immune response against other virulence factors.
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Affiliation(s)
- Alan Mauro Bernal
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental (IMEX), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Fernando Nicolás Sosa
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental (IMEX), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - María Florencia Todero
- Laboratorio de Fisiología de Procesos Inflamatorios, IMEX CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Daniela Romina Montagna
- Laboratorio de Oncología Experimental, IMEX CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Mónica Elba Vermeulen
- Laboratorio de Células Presentadoras de Antígenos y Respuesta Inflamatoria, IMEX CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Romina Jimena Fernández-Brando
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental (IMEX), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - María Victoria Ramos
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental (IMEX), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Agustina Juliana Errea
- Instituto de Estudios Inmunológicos y Fisiopatológicos - CONICET - Universidad Nacional de La Plata, La Plata, Argentina
| | - Martin Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos - CONICET - Universidad Nacional de La Plata, La Plata, Argentina
| | - Marina Sandra Palermo
- Laboratorio de Patogénesis e Inmunología de Procesos Infecciosos, Instituto de Medicina Experimental (IMEX), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Academia Nacional de Medicina, Buenos Aires, Argentina
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2
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Rumbo M, Pagone V, Piulachs MD. Diverse functions of the ecdysone receptor (EcR) in the panoistic ovary of the German cockroach. Insect Biochem Mol Biol 2023; 156:103935. [PMID: 36996928 DOI: 10.1016/j.ibmb.2023.103935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/23/2023] [Accepted: 03/23/2023] [Indexed: 05/05/2023]
Abstract
Ecdysone regulates essential processes in insect life. Perhaps the most well-known of these are related to metamorphosis. However, ecdysone is also required to regulate the proliferation and differentiation of germ cells in the ovary. The role of ecdysone in insect oogenesis has been studied in depth in holometabolan species with meroistic ovaries, such as Drosophila melanogaster, while in hemimetabolan species with panoistic ovaries their functions are still poorly understood. In the present work, we studied the role of ecdysone in the ovary of the last nymphal instar of the cockroach Blattella germanica by using RNA interference to reduce the levels of the ecdysone receptor (EcR), and thereby deplete the expression of ecdysteroidogenic genes in the prothoracic gland. However, the expression of ecdysteroidogenic genes was upregulated in the ovary, resulting in cell overproliferation in the germarium, which appeared swollen. By analysing the expression of genes that respond to ecdysone, we found that when the source of 20E is the nymphal ovary, EcR appears to repress 20E-associated genes bypassing early genes signalling.
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Affiliation(s)
- M Rumbo
- Institut de Biologia Evolutiva (CSIC- Universitat Pompeu Fabra), Passeig Maritim de la Barceloneta, 37, 08003, Barcelona, Spain
| | - V Pagone
- Institut de Biologia Evolutiva (CSIC- Universitat Pompeu Fabra), Passeig Maritim de la Barceloneta, 37, 08003, Barcelona, Spain
| | - M D Piulachs
- Institut de Biologia Evolutiva (CSIC- Universitat Pompeu Fabra), Passeig Maritim de la Barceloneta, 37, 08003, Barcelona, Spain.
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Rumbo M, Oltean M. Intestinal Transplant Immunology and Intestinal Graft Rejection: From Basic Mechanisms to Potential Biomarkers. Int J Mol Sci 2023; 24:ijms24054541. [PMID: 36901975 PMCID: PMC10003356 DOI: 10.3390/ijms24054541] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Intestinal transplantation (ITx) remains a lifesaving option for patients suffering from irreversible intestinal failure and complications from total parenteral nutrition. Since its inception, it became obvious that intestinal grafts are highly immunogenic, due to their high lymphoid load, the abundance in epithelial cells and constant exposure to external antigens and microbiota. This combination of factors and several redundant effector pathways makes ITx immunobiology unique. To this complex immunologic situation, which leads to the highest rate of rejection among solid organs (>40%), there is added the lack of reliable non-invasive biomarkers, which would allow for frequent, convenient and reliable rejection surveillance. Numerous assays, of which several were previously used in inflammatory bowel disease, have been tested after ITx, but none have shown sufficient sensibility and/or specificity to be used alone for diagnosing acute rejection. Herein, we review and integrate the mechanistic aspects of graft rejection with the current knowledge of ITx immunobiology and summarize the quest for a noninvasive biomarker of rejection.
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Affiliation(s)
- Martin Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos, Facultad de Ciencias Exactas, Universidad Nacional de La Plata—CONICET, Boulevard 120 y 62, La Plata 1900, Argentina
| | - Mihai Oltean
- The Transplant Institute, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
- Department of Surgery at Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, 413 90 Gothenburg, Sweden
- Correspondence:
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Assad SE, Fragomeno M, Rumbo M, Minnaard J, Pérez PF. The immunomodulating effect of bifidobacteria is modified by the anticoagulant acenocoumarol. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Stringa P, Vecchio Dezillio LE, Talayero P, Serradilla J, Errea A, Machuca M, Papa-Gobbi R, Camps Ortega O, Pucci Molineris M, Lausada N, Andres Moreno AM, Rumbo M, Hernández Oliveros F. Experimental Assessment of Intestinal Damage in Controlled Donation After Circulatory Death for Visceral Transplantation. Transpl Int 2023; 36:10803. [PMID: 36713114 PMCID: PMC9878676 DOI: 10.3389/ti.2023.10803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023]
Abstract
There is an urgent need to address the shortage of potential multivisceral grafts in order to reduce the average time in waiting list. Since donation after circulatory death (DCD) has been successfully employed for other solid organs, a thorough evaluation of the use of intestinal grafts from DCD is warranted. Here, we have generated a model of Maastricht III DCD in rodents, focusing on the viability of intestinal and multivisceral grafts at five (DCD5) and twenty (DCD20) minutes of cardiac arrest compared to living and brain death donors. DCD groups exhibited time-dependent damage. DCD20 generated substantial intestinal mucosal injury and decreased number of Goblet cells whereas grafts from DCD5 closely resemble those of brain death and living donors groups in terms intestinal morphology, expression of tight junction proteins and number of Paneth and Globet cells. Upon transplantation, intestines from DCD5 showed increased ischemia/reperfusion damage compared to living donor grafts, however mucosal integrity was recovered 48 h after transplantation. No differences in terms of graft rejection, gene expression and absorptive function between DCD5 and living donor were observed at 7 post-transplant days. Collectively, our results highlight DCD as a possible strategy to increase multivisceral donation and transplantation procedures.
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Affiliation(s)
- Pablo Stringa
- Transplant Group, La Paz University Hospital Health Research Institute (IdiPAZ), Madrid, Spain,Department of Pediatric Surgery, La Paz University Hospital, Madrid, Spain,Institute for Immunological and Pathophysiological Studies (IIFP), School of Exact Sciences, National University of La Plata, National Council of Scientific and Technical Research (CONICET), La Plata, Argentina,Organ Transplant Laboratory, School of Medicine, National University of La Plata, La Plata, Argentina
| | - Leandro Emmanuel Vecchio Dezillio
- Institute for Immunological and Pathophysiological Studies (IIFP), School of Exact Sciences, National University of La Plata, National Council of Scientific and Technical Research (CONICET), La Plata, Argentina,Organ Transplant Laboratory, School of Medicine, National University of La Plata, La Plata, Argentina
| | - Paloma Talayero
- Immunology Department, 12 de Octubre University Hospital, Madrid, Spain
| | - Javier Serradilla
- Transplant Group, La Paz University Hospital Health Research Institute (IdiPAZ), Madrid, Spain,Department of Pediatric Surgery, La Paz University Hospital, Madrid, Spain
| | - Agustina Errea
- Institute for Immunological and Pathophysiological Studies (IIFP), School of Exact Sciences, National University of La Plata, National Council of Scientific and Technical Research (CONICET), La Plata, Argentina
| | - Mariana Machuca
- Special Pathology Laboratory, Faculty of Veterinary Sciences, National University of La Plata, La Plata, Argentina
| | - Rodrigo Papa-Gobbi
- Transplant Group, La Paz University Hospital Health Research Institute (IdiPAZ), Madrid, Spain,Department of Pediatric Surgery, La Paz University Hospital, Madrid, Spain,Institute for Immunological and Pathophysiological Studies (IIFP), School of Exact Sciences, National University of La Plata, National Council of Scientific and Technical Research (CONICET), La Plata, Argentina
| | - Onys Camps Ortega
- Transplant Group, La Paz University Hospital Health Research Institute (IdiPAZ), Madrid, Spain,Department of Pediatric Surgery, La Paz University Hospital, Madrid, Spain
| | - Melisa Pucci Molineris
- Biochemistry Research Institute of La Plata, School of Medicine, National University of La Plata, National Council of Scientific and Technical Research (CONICET), La Plata, Argentina
| | - Natalia Lausada
- Organ Transplant Laboratory, School of Medicine, National University of La Plata, La Plata, Argentina
| | - Ane Miren Andres Moreno
- Transplant Group, La Paz University Hospital Health Research Institute (IdiPAZ), Madrid, Spain,Department of Pediatric Surgery, La Paz University Hospital, Madrid, Spain
| | - Martin Rumbo
- Institute for Immunological and Pathophysiological Studies (IIFP), School of Exact Sciences, National University of La Plata, National Council of Scientific and Technical Research (CONICET), La Plata, Argentina
| | - Francisco Hernández Oliveros
- Transplant Group, La Paz University Hospital Health Research Institute (IdiPAZ), Madrid, Spain,Department of Pediatric Surgery, La Paz University Hospital, Madrid, Spain,Executive Operational Committee, ERN TransplantChild, Madrid, Spain,*Correspondence: Francisco Hernández Oliveros,
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Rimondi A, Olivera VS, Soria I, Parisi GD, Rumbo M, Perez DR. Few Amino Acid Mutations in H6 Influenza A Virus From South American Lineage Increase Viral Replication Efficiency in Poultry. Front Microbiol 2022; 13:953738. [PMID: 35966706 PMCID: PMC9363787 DOI: 10.3389/fmicb.2022.953738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/21/2022] [Indexed: 11/30/2022] Open
Abstract
In chickens, infections due to influenza A virus (IAV) can be mild to severe and lethal. The study of IAV infections in poultry has been mostly limited to strains from the North American and Eurasian lineages, whereas limited information exists on similar studies with strains from the South American lineage (SAm). To better evaluate the risk of introduction of a prototypical SAm IAV strain into poultry, chickens were infected with a wild-type SAm origin strain (WT557/H6N2). The resulting virus progeny was serially passaged in chickens 20 times, and the immunopathological effects of the last passage virus, 20Ch557/H6N2, in chickens were compared to those of the parental strain. A comparison of complete viral genome sequences indicated that the 20Ch557/H6N2 strain contained 13 amino acid differences compared to the wild-type strain. Five of these mutations are in functionally relevant regions of the viral surface glycoproteins hemagglutinin (HA) and neuraminidase (NA). However, despite higher and more prolonged virus shedding in chickens inoculated with the 20Ch557/H6N2 strain compared to those that received the WT557/H6N2 strain, transmission to naïve chickens was not observed for either group. Analyses by flow cytometry of mononuclear cells and lymphocyte subpopulations from the lamina propria and intraepithelial lymphocytic cells (IELs) from the ileum revealed a significant increase in the percentages of CD3+TCRγδ+ IELs in chickens inoculated with the 20Ch557/H6N2 strain compared to those inoculated with the WT557/H6N2 strain.
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Affiliation(s)
- Agustina Rimondi
- Instituto de Virología e Innovaciones Tecnológicas, Centro de Investigaciones en Ciencias Veterinarias y Agronómicas, INTA-CONICET, Castelar, Argentina
| | - Valeria S. Olivera
- Instituto de Virología e Innovaciones Tecnológicas, Centro de Investigaciones en Ciencias Veterinarias y Agronómicas, INTA-CONICET, Castelar, Argentina
| | - Ivana Soria
- Instituto de Virología e Innovaciones Tecnológicas, Centro de Investigaciones en Ciencias Veterinarias y Agronómicas, INTA-CONICET, Castelar, Argentina
| | - Gustavo D. Parisi
- Departamento de Ciencia y Tecnología, CONICET, Universidad Nacional de Quilmes, Bernal, Argentina
| | - Martin Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
| | - Daniel R. Perez
- Poultry Diagnostic and Research Center, College of Veterinary Medicine, University of Georgia, Athens, GA, United States
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7
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Stringa P, Toledano V, Papa-Gobbi R, Arreola M, Largo C, Machuca M, Aguirre LA, Rumbo M, López-Collazo E, Hernández Oliveros F. Galactomannan as a Potential Modulator of Intestinal Ischemia-Reperfusion Injury. J Surg Res 2019; 249:232-240. [PMID: 31796217 DOI: 10.1016/j.jss.2019.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 07/08/2019] [Revised: 09/30/2019] [Accepted: 10/20/2019] [Indexed: 01/20/2023]
Abstract
BACKGROUND Galactomannan (GAL), a polysaccharide present on the cell wall of several fungi, has shown an ability to modulate inflammatory responses through the dectin-1 receptor in human macrophages. However, studies evaluating the modulatory properties of this polysaccharide in in vivo inflammatory scenarios are scarce. We hypothesized that GAL pretreatment would modulate local and remote damage related to intestinal reperfusion after an ischemic insult. MATERIALS AND METHODS Adult male Balb/c mice were subjected to intestinal ischemia-reperfusion injury by reversible occlusion of the superior mesenteric artery, consisting of 45 min of ischemia followed by 3 or 24 h of reperfusion. Intragastric GAL (70 mg/kg) was administered 12 h before ischemia, and saline solution was used in the control animals. Jejunum, lung, and blood samples were taken for the analysis of histology, gene expression, plasma cytokine levels, and nitrosative stress. RESULTS Intestinal and lung histologic alterations were attenuated by GAL pretreatment, showing significant differences compared with nontreated animals. Interleukin 1β, monocyte chemoattractant protein 1, and IL-6 messenger RNA expression were considerably downregulated in the small intestine of the GAL group. In addition, GAL treatment significantly prevented plasma interleukin 6 and monocyte chemoattractant protein 1 upregulation and diminished nitrate and nitrite levels after 3 h of intestinal reperfusion. CONCLUSIONS GAL pretreatment constitutes a novel and promising therapy to reduce local and remote damage triggered by intestinal ischemia-reperfusion injury. Further in vivo and in vitro studies to understand GAL's modulatory effects are warranted.
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Affiliation(s)
- Pablo Stringa
- Transplant Group, Experimental Surgery, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Victor Toledano
- Tumor Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain; Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Rodrigo Papa-Gobbi
- Transplant Group, Experimental Surgery, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Miguel Arreola
- Transplant Group, Experimental Surgery, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Carlota Largo
- Transplant Group, Experimental Surgery, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Mariana Machuca
- Special Pathology Laboratory, Faculty of Veterinary Sciences, National University of La Plata, La Plata, Buenos Aires, Argentina
| | - Luis A Aguirre
- Tumor Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain; Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Martin Rumbo
- Institute for Immunological and Physiopathological Studies (IIFP-CONICET-UNLP), National University of La Plata, La Plata, Buenos Aires, Argentina
| | - Eduardo López-Collazo
- Tumor Immunology Laboratory, IdiPAZ, La Paz University Hospital, Madrid, Spain; Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.
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Carnevale ME, Lausada N, Juan de Paz L, Stringa P, Machuca M, Rumbo M, Guibert EE, Tiribelli C, Gondolesi GE, Rodriguez JV. The Novel N,N-bis-2-Hydroxyethyl-2-Aminoethanesulfonic Acid-Gluconate-Polyethylene Glycol-Hypothermic Machine Perfusion Solution Improves Static Cold Storage and Reduces Ischemia/Reperfusion Injury in Rat Liver Transplant. Liver Transpl 2019; 25:1375-1386. [PMID: 31121085 DOI: 10.1002/lt.25573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/16/2019] [Indexed: 01/19/2023]
Abstract
Organ transplantation is the treatment of choice against terminal and irreversible organ failure. Optimal preservation of the graft is crucial to counteract cold ischemia effects. As we developed an N,N-bis-2-hydroxyethyl-2-aminoethanesulfonic acid-gluconate-polyethylene glycol (BGP)-based solution (hypothermic machine perfusion [HMP]), we aimed to analyze the use of this solution on static cold storage (SCS) of rat livers for transplantation as compared with the histidine tryptophan ketoglutarate (HTK) preservation solution. Livers procured from adult male Sprague Dawley rats were preserved with BGP-HMP or HTK solutions. Liver total water content and metabolites were measured during the SCS at 0°C for 24 hours. The function and viability of the preserved rat livers were first assessed ex vivo after rewarming (90 minutes at 37°C) and in vivo using the experimental model of reduced-size heterotopic liver transplantation. After SCS, the water and glycogen content in both groups remained unchanged as well as the tissue glutathione concentration. In the ex vivo studies, livers preserved with the BGP-HMP solution were hemodynamically more efficient and the O2 consumption rate was higher than in livers from the HTK group. Bile production and glycogen content after 90 minutes of normothermic reperfusion was diminished in both groups compared with the control group. Cellular integrity of the BGP-HMP group was better, and the histological damage was reversible. In the in vivo model, HTK-preserved livers showed a greater degree of histological injury and higher apoptosis compared with the BGP-HMP group. In conclusion, our results suggest a better role of the BGP-HMP solution compared with HTK in preventing ischemia/reperfusion injury in the rat liver model.
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Affiliation(s)
- Matías E Carnevale
- Centro Binacional (Argentina-Italia) de Investigaciones en Criobiología Clínica y Aplicada, Universidad Nacional de Rosario, Rosario, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de la Plata, La Plata, Argentina
| | - Natalia Lausada
- Cátedra de Trasplante, Facultad de Ciencias Médicas, Universidad Nacional de la Plata, La Plata, Argentina
| | - Leonardo Juan de Paz
- Centro Binacional (Argentina-Italia) de Investigaciones en Criobiología Clínica y Aplicada, Universidad Nacional de Rosario, Rosario, Argentina
| | - Pablo Stringa
- Cátedra de Trasplante, Facultad de Ciencias Médicas, Universidad Nacional de la Plata, La Plata, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de la Plata, La Plata, Argentina
| | - Mariana Machuca
- Laboratorio de Patología Especial, Facultad de Ciencias Veterinarias, Universidad Nacional de la Plata, La Plata, Argentina
| | - Martin Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos, Universidad Nacional de la Plata, La Plata, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de la Plata, La Plata, Argentina
| | - Edgardo E Guibert
- Centro Binacional (Argentina-Italia) de Investigaciones en Criobiología Clínica y Aplicada, Universidad Nacional de Rosario, Rosario, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de la Plata, La Plata, Argentina
| | | | - Gabriel E Gondolesi
- Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de la Plata, La Plata, Argentina.,Servicio de Cirugía General, Trasplante Hepático, Pancreático e Intestinal, Hospital Universitario Fundación Favaloro, Laboratorio de Microcirugía Experimental, Instituto de Medicina Traslacional, Trasplante y Bioengeniería, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Favaloro, Buenos Aires, Argentina
| | - Joaquin V Rodriguez
- Centro Binacional (Argentina-Italia) de Investigaciones en Criobiología Clínica y Aplicada, Universidad Nacional de Rosario, Rosario, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de la Plata, La Plata, Argentina
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Vijayan A, Rumbo M, Carnoy C, Sirard JC. Compartmentalized Antimicrobial Defenses in Response to Flagellin. Trends Microbiol 2018; 26:423-435. [PMID: 29173868 DOI: 10.1016/j.tim.2017.10.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Revised: 10/20/2017] [Accepted: 10/27/2017] [Indexed: 11/19/2022]
Abstract
Motility is often a pathogenicity determinant of bacteria targeting mucosal tissues. Flagella constitute the machinery that propels bacteria into appropriate niches. Besides motility, the structural component, flagellin, which forms the flagella, targets Toll-like receptor 5 (TLR5) to activate innate immunity. The compartmentalization of flagellin-mediated immunity and the contribution of epithelial cells and dendritic cells in detecting flagellin within luminal and basal sides are highlighted here, respectively. While a direct stimulation of the epithelium mainly results in recruitment of immune cells and production of antimicrobial molecules, TLR5 engagement on parenchymal dendritic cells can contribute to the stimulation of innate lymphocytes such as type 3 innate lymphoid cells, as well as T helper cells. This review, therefore, illustrates how the innate and adaptive immunity to flagellin are differentially regulated by the epithelium and the dendritic cells in response to pathogens that either colonize or invade mucosa.
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Affiliation(s)
- Aneesh Vijayan
- Université Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR8204 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Martin Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos - CONICET - National Universtity of La Plata, 1900 La Plata, Argentina
| | - Christophe Carnoy
- Université Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR8204 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
| | - Jean-Claude Sirard
- Université Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR8204 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France.
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Pucci Molineris M, Gonzalez Polo V, Perez F, Ramisch D, Rumbo M, Gondolesi GE, Meier D. Paneth and intestinal stem cells preserve their functional integrity during worsening of acute cellular rejection in small bowel transplantation. Am J Transplant 2018; 18:1007-1015. [PMID: 29139621 DOI: 10.1111/ajt.14592] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 06/07/2017] [Revised: 11/01/2017] [Accepted: 11/05/2017] [Indexed: 01/25/2023]
Abstract
Graft survival after small bowel transplantation remains impaired due to acute cellular rejection (ACR), the leading cause of graft loss. Although it was shown that the number of enteroendocrine progenitor cells in intestinal crypts was reduced during mild ACR, no results of Paneth and intestinal stem cells localized at the crypt bottom have been shown so far. Therefore, we wanted to elucidate integrity and functionality of the Paneth and stem cells during different degrees of ACR, and to assess whether these cells are the primary targets of the rejection process. We compared biopsies from ITx patients with no, mild, or moderate ACR by immunohistochemistry and quantitative PCR. Our results show that numbers of Paneth and stem cells remain constant in all study groups, whereas the transit-amplifying zone is the most impaired zone during ACR. We detected an unchanged level of antimicrobial peptides in Paneth cells and similar numbers of Ki-67+ IL-22R+ stem cells revealing cell functionality in moderate ACR samples. We conclude that Paneth and stem cells are not primary target cells during ACR. IL-22R+ Ki-67+ stem cells might be an interesting target cell population for protection and regeneration of the epithelial monolayer during/after a severe ACR in ITx patients.
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Affiliation(s)
- M Pucci Molineris
- Laboratorio de Investigación Traslacional e Inmunología Asociada al Trasplante, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Buenos Aires, Argentina.,Instituto de Trasplante Multiórganico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina
| | - V Gonzalez Polo
- Laboratorio de Investigación Traslacional e Inmunología Asociada al Trasplante, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Buenos Aires, Argentina.,Instituto de Trasplante Multiórganico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina
| | - F Perez
- Instituto de Estudios Inmunológicos y Fisiopatológicos, UNLP-CONICET, La Plata, Argentina
| | - D Ramisch
- Instituto de Trasplante Multiórganico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina
| | - M Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos, UNLP-CONICET, La Plata, Argentina
| | - G E Gondolesi
- Laboratorio de Investigación Traslacional e Inmunología Asociada al Trasplante, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Buenos Aires, Argentina.,Instituto de Trasplante Multiórganico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina
| | - D Meier
- Laboratorio de Investigación Traslacional e Inmunología Asociada al Trasplante, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMeTTyB), Universidad Favaloro-CONICET, Buenos Aires, Argentina.,Instituto de Trasplante Multiórganico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina
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11
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Gondolesi GE, Fernandez A, Burghardt KM, Nowakowski S, Kaufman SS, Pascher A, Florescu D, Ruiz P, Vianna R, Clarke S, Oltean M, Rumbo M, Mazariegos G, Sudan DL, Farmer DG. Meeting Report of the XIV International Small Bowel Transplant Symposium: Summary of Presentations, Workshops, and Debates From a Comprehensive Meeting on Intestinal Failure, Rehabilitation, and Transplantation, Buenos Aires, Argentina, June 10-13, 2015. JPEN J Parenter Enteral Nutr 2017; 42:477-489. [PMID: 28437160 DOI: 10.1177/0148607117701696] [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] [Received: 01/19/2017] [Accepted: 02/23/2017] [Indexed: 11/16/2022]
Abstract
The 2015 meeting of the Intestinal Transplant Association was held in Buenos Aires, Argentina. This was the 14th International Small Bowel Transplant Symposium, and it was the first meeting organized as a joint venture of the Transplantation Society, the Intestinal Transplant Association, and the Argentinean Transplant Society (Sociedad Argentina de Trasplantes). Innovative aspects of the classic meeting format included workshops sessions, debates, and multicenter studies. This report highlights the most prominent scientific contributions and results of the first such symposium in a Latin American country.
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Affiliation(s)
| | | | | | | | | | - Andreas Pascher
- Campus Virchow and Mitte, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Diana Florescu
- University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Phillip Ruiz
- University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
| | - Rodrigo Vianna
- University of Miami/Jackson Memorial Hospital, Miami, Florida, USA
| | - Sara Clarke
- Birmingham Children's Hospital, Steelhouse Lane, Birmingham, UK
| | | | - Martin Rumbo
- Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - George Mazariegos
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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12
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Hiriart Y, Rossi AH, Biedma ME, Errea AJ, Moreno G, Cayet D, Rinaldi J, Blancá B, Sirard JC, Goldbaum F, Berguer P, Rumbo M. Characterization of structural and immunological properties of a fusion protein between flagellin from Salmonella and lumazine synthase from Brucella. Protein Sci 2017; 26:1049-1059. [PMID: 28257593 DOI: 10.1002/pro.3151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 10/11/2016] [Revised: 12/09/2016] [Accepted: 02/23/2017] [Indexed: 01/09/2023]
Abstract
Aiming to combine the flexibility of Brucella lumazine synthase (BLS) to adapt different protein domains in a decameric structure and the capacity of BLS and flagellin to enhance the immunogenicity of peptides that are linked to their structure, we generated a chimeric protein (BLS-FliC131) by fusing flagellin from Salmonella in the N-termini of BLS. The obtained protein was recognized by anti-flagellin and anti-BLS antibodies, keeping the oligomerization capacity of BLS, without affecting the folding of the monomeric protein components determined by circular dichroism. Furthermore, the thermal stability of each fusion partner is conserved, indicating that the interactions that participate in its folding are not affected by the genetic fusion. Besides, either in vitro or in vivo using TLR5-deficient animals we could determine that BLS-FliC131 retains the capacity of triggering TLR5. The humoral response against BLS elicited by BLS-FliC131 was stronger than the one elicited by equimolar amounts of BLS + FliC. Since BLS scaffold allows the generation of hetero-decameric structures, we expect that flagellin oligomerization on this protein scaffold will generate a new vaccine platform with enhanced capacity to activate immune responses.
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Affiliation(s)
- Y Hiriart
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
| | - A H Rossi
- Fundación Instituto Leloir, IIBBA, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - M E Biedma
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
| | - A J Errea
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
| | - G Moreno
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
| | - D Cayet
- Centre d'Infection et d'Immunité de Lille, Institut Pasteur de Lille, Lille, France. Institut National de la Santé et de la Recherche Médicale, U1019, Lille, France. Centre National de la Recherche Scientifique, UMR 8204, Lille, France Université de Lille, Lille, France
| | - J Rinaldi
- Fundación Instituto Leloir, IIBBA, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - B Blancá
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
| | - J C Sirard
- Centre d'Infection et d'Immunité de Lille, Institut Pasteur de Lille, Lille, France. Institut National de la Santé et de la Recherche Médicale, U1019, Lille, France. Centre National de la Recherche Scientifique, UMR 8204, Lille, France Université de Lille, Lille, France
| | - F Goldbaum
- Fundación Instituto Leloir, IIBBA, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - P Berguer
- Fundación Instituto Leloir, IIBBA, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - M Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP-CONICET-UNLP), La Plata, Argentina
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13
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Bottero D, Gaillard ME, Zurita E, Moreno G, Martinez DS, Bartel E, Bravo S, Carriquiriborde F, Errea A, Castuma C, Rumbo M, Hozbor D. Characterization of the immune response induced by pertussis OMVs-based vaccine. Vaccine 2016; 34:3303-9. [PMID: 27151884 DOI: 10.1016/j.vaccine.2016.04.079] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [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: 11/26/2015] [Revised: 02/29/2016] [Accepted: 04/25/2016] [Indexed: 12/22/2022]
Abstract
For the development of a third generation of pertussis vaccine that could improve the control of the disease, it was proposed that the immune responses induced by the classic whole cell vaccine (wP) or after infection should be used as a reference point. We have recently identified a vaccine candidate based on outer membrane vesicles (OMVs) derived from the disease etiologic agent that have been shown to be safe and protective in mice model of infection. Here we characterized OMVs-mediated immunity and the safety of our new candidate. We also deepen the knowledge of the induced humoral response contribution in pertussis protection. Regarding the safety of the OMVs based vaccine (TdapOMVsBp,) the in vitro whole blood human assay here performed, showed that the low toxicity of OMVs-based vaccine previously detected in mice could be extended to human samples. Stimulation of splenocytes from immunized mice evidenced the presence of IFN-γ and IL-17-producing cells, indicated that OMVs induces both Th1 and Th17 response. Interestingly TdapOMVsBp-raised antibodies such as those induced by wP and commercial acellular vaccines (aP) which contribute to induce protection against Bordetella pertussis infection. As occurs with wP-induced antibodies, the TdapOMVsBp-induced serum antibodies efficiently opsonized B. pertussis. All the data here obtained shows that OMVs based vaccine is able to induce Th1/Th17 and Th2 mixed profile with robust humoral response involved in protection, positioning this candidate among the different possibilities to constitute the third generation of anti-pertussis vaccines.
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Affiliation(s)
- D Bottero
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - M E Gaillard
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - E Zurita
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - G Moreno
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, 47 y 115, 1900 La Plata, Argentina
| | - D Sabater Martinez
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - E Bartel
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - S Bravo
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - F Carriquiriborde
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - A Errea
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, 47 y 115, 1900 La Plata, Argentina
| | - C Castuma
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina
| | - M Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, 47 y 115, 1900 La Plata, Argentina
| | - D Hozbor
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900 La Plata, Argentina.
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14
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Stringa P, Lausada N, Romanin D, Portiansky E, Zanuzzi C, Machuca M, Gondolesi G, Rumbo M. Pretreatment Combination Reduces Remote Organ Damage Secondary to Intestinal Reperfusion Injury in Mice: Follow-up Study. Transplant Proc 2016; 48:210-6. [DOI: 10.1016/j.transproceed.2015.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 12/10/2015] [Indexed: 12/15/2022]
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15
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Romanin DE, Llopis S, Genovés S, Martorell P, Ramón VD, Garrote GL, Rumbo M. Probiotic yeast Kluyveromyces marxianus CIDCA 8154 shows anti-inflammatory and anti-oxidative stress properties in in vivo models. Benef Microbes 2015; 7:83-93. [PMID: 26565081 DOI: 10.3920/bm2015.0066] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 12/31/2022]
Abstract
Inflammatory bowel diseases (IBDs) are complex affections with increasing incidence worldwide. Multiple factors are involved in the development and maintenance of the symptoms including enhanced oxidative stress in intestinal mucosa. The conventional therapeutic approaches for IBDs are based on the use anti-inflammatory drugs with important collateral effects and partial efficacy. In the present work we tested the anti-inflammatory capacity of Kluyveromyces marxianus CIDCA 8154 in different models. In vitro, we showed that the pretreatment of epithelial cells with the yeast reduce the levels of intracellular reactive oxygen species. Furthermore, in a murine model of trinitro benzene sulfonic acid-induced colitis, yeast-treated animals showed a reduced histopathological score (P<0.05) and lower levels of circulating interleukin 6 (P<0.05). The capacity to modulate oxidative stress in vivo was assessed using a Caenorhabditis elegans model. The yeast was able to protect the nematodes from oxidative stress by modulating the SKN-1 transcription factor trough the DAF-2 pathway. These results indicate that K. marxianus CIDCA 8154 could control the intestinal inflammation and cellular oxidative stress. Deciphering the mechanisms of action of different probiotics might be useful for the rational formulation of polymicrobial products containing microorganisms targeting different anti-inflammatory pathways.
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Affiliation(s)
- D E Romanin
- 1 Instituto de Estudios en Inmunología y Fisiopatología (IIFP, UNLP-CONICET), Calle 47 y 115, 1900 La Plata, Argentina
| | - S Llopis
- 2 Laboratorio Biología Celular. Departamento Biotecnología Agroalimentaria, Biópolis, S.L. Parc Científic Universitat de València, C/ Catedrático Agustín Escardino 9, edificio 2, 46980 Paterna, Spain
| | - S Genovés
- 2 Laboratorio Biología Celular. Departamento Biotecnología Agroalimentaria, Biópolis, S.L. Parc Científic Universitat de València, C/ Catedrático Agustín Escardino 9, edificio 2, 46980 Paterna, Spain
| | - P Martorell
- 2 Laboratorio Biología Celular. Departamento Biotecnología Agroalimentaria, Biópolis, S.L. Parc Científic Universitat de València, C/ Catedrático Agustín Escardino 9, edificio 2, 46980 Paterna, Spain
| | - V D Ramón
- 2 Laboratorio Biología Celular. Departamento Biotecnología Agroalimentaria, Biópolis, S.L. Parc Científic Universitat de València, C/ Catedrático Agustín Escardino 9, edificio 2, 46980 Paterna, Spain
| | - G L Garrote
- 3 Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA, UNLP-CONICET), Calle 47 y 116, 1900 La Plata, Argentina
| | - M Rumbo
- 1 Instituto de Estudios en Inmunología y Fisiopatología (IIFP, UNLP-CONICET), Calle 47 y 115, 1900 La Plata, Argentina
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16
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Gaillard ME, Bottero D, Moreno G, Rumbo M, Hozbor D. Strategies and new developments to control pertussis, an actual health problem. Pathog Dis 2015; 73:ftv059. [PMID: 26260328 DOI: 10.1093/femspd/ftv059] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2015] [Indexed: 12/26/2022] Open
Abstract
The aim of this article is to describe the current epidemiological situation of pertussis, as well as different short-term strategies that have been implemented to alleviate this threat. The state of the art of the development of new vaccines that are expected to provide long-lasting immunity against pertussis was also included.
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Affiliation(s)
- María Emilia Gaillard
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900, La Plata, Argentina
| | - Daniela Bottero
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900, La Plata, Argentina
| | - Griselda Moreno
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, UNLP 47 y 115 (1900) La Plata, Argentina
| | - Martin Rumbo
- Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, UNLP 47 y 115 (1900) La Plata, Argentina
| | - Daniela Hozbor
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, Calles 50 y 115, 1900, La Plata, Argentina
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17
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Abstract
Rates of infection with Bordetella pertussis, the gram-negative bacterium that causes the respiratory disease called whooping cough or pertussis, have not abated and 16 million cases with almost 200,000 deaths are estimated by the WHO to have occurred worldwide in 2008. Despite relatively high vaccination rates, the disease has come back in recent years to afflict people in numbers not seen since the pre-vaccine days. Indeed, pertussis is now recognized as a frequent infection not only in newborn and infants but also in adults. The disease symptoms also can be induced by the non-vaccine-preventable infection with the close species B. parapertussis for which an increasing number of cases have been reported. The epidemiologic situation and current knowledge of the limitations of pertussis vaccine point out the need to design improved vaccines. Several alternative approaches and their challenges are summarized.
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Affiliation(s)
- Martin Rumbo
- a Laboratorio VacSal; Instituto de Biotecnología y Biología Molecular (IBBM); Facultad de Ciencias Exactas; Universidad Nacional de La Plata; CCT-CONICET La Plata; La Plata, Argentina
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18
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Errea A, González Maciel D, Hiriart Y, Hozbor D, Rumbo M. Intranasal administration of TLR agonists induces a discriminated local innate response along murine respiratory tract. Immunol Lett 2015; 164:33-9. [PMID: 25637743 DOI: 10.1016/j.imlet.2015.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 12/30/2014] [Accepted: 01/19/2015] [Indexed: 11/28/2022]
Abstract
Adjuvants are relevant for mucosal immunization in order to induce long lasting protective immunity. It has been shown that targeting to different regions of the airway results in different capacity to trigger adaptive/protective immunity. Nevertheless there is scarce knowledge regarding topological responsiveness along airways to TLR agonists. We analyzed the effects of intranasal administration of lipopolysaccharide (LPS), poly I:C and flagellin on the expression of a panel of innate response markers along murine airways by laser microdissection and RTqPCR. In all cases treatment induced recruitment of inflammatory cells to airways. However, regional gene expression indicated that whereas deeper airways (mainly alveoli) respond with high expression of IL6, CXCL1 and CXCL10, the response in conductive airways (bronchi and bronchioles) is dominated by expression of CCL20. On the other hand, triggering TLR3 elicits a response dominated by CXCL10, showing higher expression at 6h compared to 2h, whereas LPS and flagellin induce a response peaking at 2h and dominated by IL6 and CXCL1. The results presented here showed difference in topological response triggered by different TLR agonist. These results make the targeting of different sites of airways a variable to evaluate when selecting the appropriate combinations of TLR and vaccinal antigens for intranasal delivery.
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Affiliation(s)
- Agustina Errea
- Instituto de Estudios en Inmunología y Fisiopatología (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Dolores González Maciel
- Instituto de Estudios en Inmunología y Fisiopatología (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Yanina Hiriart
- Instituto de Estudios en Inmunología y Fisiopatología (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Daniela Hozbor
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata CONICET, La Plata, Argentina
| | - Martin Rumbo
- Instituto de Estudios en Inmunología y Fisiopatología (IIFP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina.
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19
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Zambernardi A, Chiodetti A, Meier D, Cabanne A, Nachman F, Solar H, Rumbo C, Gondolesi GE, Rumbo M. Immunosuppressive therapies after intestinal transplant modulate the expression of Th1 signature genes during acute cellular rejection. Implications in the search for rejection biomarkers. Clin Transplant 2014; 28:1365-71. [DOI: 10.1111/ctr.12464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Agustina Zambernardi
- Laboratorio de Investigaciones del Sistema Inmune (LISIN); Facultad de Cs. Exactas; Universidad Nacional de La Plata; La Plata Argentina
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Ana Chiodetti
- Laboratorio de Investigaciones del Sistema Inmune (LISIN); Facultad de Cs. Exactas; Universidad Nacional de La Plata; La Plata Argentina
| | - Dominik Meier
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Ana Cabanne
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Fabio Nachman
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Héctor Solar
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Carolina Rumbo
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Gabriel E. Gondolesi
- Instituto de Transplante Multiorgánico; Fundación Favaloro; Buenos Aires Argentina
| | - Martin Rumbo
- Laboratorio de Investigaciones del Sistema Inmune (LISIN); Facultad de Cs. Exactas; Universidad Nacional de La Plata; La Plata Argentina
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20
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González Orive A, Pissinis DE, Diaz C, Miñán A, Benítez GA, Rubert A, Daza Millone A, Rumbo M, Hernández Creus A, Salvarezza RC, Schilardi PL. Self-assembly of flagellin on Au(111) surfaces. J Colloid Interface Sci 2014; 433:86-93. [DOI: 10.1016/j.jcis.2014.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/10/2014] [Accepted: 07/08/2014] [Indexed: 10/25/2022]
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21
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Meier D, Docena GH, Ramisch D, Toscanini U, Berardi G, Gondolesi GE, Rumbo M. Immunological status of isolated lymphoid follicles after intestinal transplantation. Am J Transplant 2014; 14:2148-58. [PMID: 25088845 DOI: 10.1111/ajt.12797] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 12/02/2013] [Revised: 03/20/2014] [Accepted: 04/17/2014] [Indexed: 01/25/2023]
Abstract
Intestinal transplantation (ITx) faces the challenge of grafting a high immunogenic organ, which is certainly one of the major obstacles for intestinal allograft acceptance. The allograft has to guarantee the proper functioning of the mucosal immune machinery under immunosuppressive conditions. Recently, it has been elucidated that isolated lymphoid follicles (ILFs) are an indispensable part of mucosal immunity to maintain IgA synthesis and consequently to control commensal microflora. No data about these follicular structures in the setting of ITx are available so far. Therefore, we addressed the question whether constitution, integrity and function of allograft ILFs are disturbed by immunosuppressive regimen. We compared allograft ILFs from terminal ileum of transplant patients with ILFs from nontransplant patients via flow cytometry, quantitative real-time polymerase chain reaction and immunohistochemistry. We found that host leukocytes rapidly repopulate allograft ILFs and that maintenance immunosuppressive regimen, tacrolimus and corticosteroids, does not affect their cellular integrity and function. However, allograft ILFs revealed a higher maturation state than control samples and IgA positive plasma cells were increased in number in allograft mucosa. Our results open the path for a better understanding of allograft mucosal immunity.
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Affiliation(s)
- D Meier
- Laboratory of Translational Research and Transplant Immunology, Multiorgan Transplantation Institute, Favaloro University, Buenos Aires, Argentina
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22
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Stringa P, Romanin D, Lausada N, Machuca M, Raimondi JC, Cabanne A, Rumbo M, Gondolesi G. Ischemic preconditioning and tacrolimus pretreatment as strategies to attenuate intestinal ischemia-reperfusion injury in mice. Transplant Proc 2014; 45:2480-5. [PMID: 23953566 DOI: 10.1016/j.transproceed.2013.02.113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 02/05/2013] [Indexed: 12/13/2022]
Abstract
The intestine is highly sensitive to ischemia-reperfusion injury (IRI), a phenomenon occurring in different intestinal diseases. Several strategies to mitigate IRI are in experimental stages; unfortunately, no consensus has been reached about the most appropriate one. We report a protocol to study ischemic preconditioning (IPC) evaluation in mice and to combine IPC and tacrolimus (TAC) pretreatment in a warm ischemia model. Mice were divided into treated (IPC, TAC, and IPC + TAC) and untreated groups before intestinal ischemia. IPC, TAC, and IPC + TAC groups were able to decrease postreperfusion nitrites levels (P < .05). IPC-containing groups had a major beneficial effect by preserving the integrity of the intestinal histology (P < .05) and improving animal survival (P < .002) compared with TAC alone or the untreated group. The IPC + TAC group was the only one that showed significant improvement in lung histological analysis (P < .05). The TAC and IPC + TAC groups down-regulated intestinal expression of interleukin (II)-6 and IL1b more than 10-fold compared with the control group. Although IPC and TAC alone reduced intestinal IRI, the used of a combined therapy produced the most significant results in all the local and distant evaluated parameters.
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Affiliation(s)
- P Stringa
- Laboratorio de Microcirugía Experimental, Instituto de Trasplante Multiorgánico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina.
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23
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Gaillard ME, Bottero D, Errea A, Ormazábal M, Zurita ME, Moreno G, Rumbo M, Castuma C, Bartel E, Flores D, van der Ley P, van der Ark A, F Hozbor D. Acellular pertussis vaccine based on outer membrane vesicles capable of conferring both long-lasting immunity and protection against different strain genotypes. Vaccine 2014; 32:931-7. [PMID: 24397896 DOI: 10.1016/j.vaccine.2013.12.048] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 12/08/2013] [Accepted: 12/18/2013] [Indexed: 11/28/2022]
Abstract
Despite high vaccination coverage rates, pertussis continues to be a global concern, with increased incidence widely noted. The current pertussis epidemiologic situation has been mainly attributed to waning immunity and pathogen adaptation. To improve the disease control, a new generation of vaccines capable to overcome those weaknesses associated to the current vaccines need to be developed. Previously we have demonstrated that the outer membrane vesicles obtained from the recombinant Bordetella pertussis strain expressing PagL enzyme (OMVs(BpPagL)) are good vaccine candidates to protect against pertussis. In this work the OMVs(BpPagL) formulated with diphtheria and tetanus toxoids (Tdap(OMVsBpPagL)) was used to evaluate its capacity to offer protection against Argentinean clinical isolates and to induce long-term immunity. To these aims BALB/c mice were immunized with Tdap(OMVsBpPagL) and challenged with sublethal doses of the clinical isolate Bp106 selected as a representative circulating isolate. Comparisons with a current commercial Tdap vaccine used at a dose in which pertussis toxin level was equivalent to that of Tdap(OMVsBpPagL) were performed. With the normalized doses of both vaccines we observed that Tdap(OMVsBpPagL) protected against the clinical isolate infection, whereas current commercial Tdap vaccine showed little protection against such pathogen. Regarding long-term immunity we observed that the Tdap(OMVsBpPagL) protective capacity against the recommended WHO reference strain persisted at least 9 months. In agreement with these results Tdap(OMVsBpPagL) induced Th1 and Th2 immune response. In contrast, commercial Tdap induced Th2 but weak Th1 responses. All results presented here showed that Tdap(OMVsBpPagL) is an interesting formulation to be considered for the development of novel acellular multi-antigen vaccine.
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Affiliation(s)
- María Emilia Gaillard
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - Daniela Bottero
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - Agustina Errea
- Laboratorio de Investigaciones del Sistema Inmune (LISIN), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calles 47 y 115, 1900, La Plata, Argentina
| | - Maximiliano Ormazábal
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - M Eugenia Zurita
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - Griselda Moreno
- Laboratorio de Investigaciones del Sistema Inmune (LISIN), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calles 47 y 115, 1900, La Plata, Argentina
| | - Martin Rumbo
- Laboratorio de Investigaciones del Sistema Inmune (LISIN), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calles 47 y 115, 1900, La Plata, Argentina
| | - Celina Castuma
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - Erika Bartel
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - Dario Flores
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina
| | - Peter van der Ley
- National Institute for Public Health and the Environment (RIVM), Laboratory for Infectious Diseases and Screening (LIS) Centre for Infectious Disease Control, Bilthoven, The Netherlands
| | - Arno van der Ark
- National Institute for Public Health and the Environment (RIVM), Laboratory for Infectious Diseases and Screening (LIS) Centre for Infectious Disease Control, Bilthoven, The Netherlands
| | - Daniela F Hozbor
- Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata. Calles 50 y 115, 1900, La Plata, Argentina.
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Hiriart Y, Serradell M, Martínez A, Sampaolesi S, Maciel DG, Chabalgoity JA, Yim L, Algorta G, Rumbo M. Generation and selection of anti-flagellin monoclonal antibodies useful for serotyping Salmonella enterica. Springerplus 2013; 2:640. [PMID: 24349948 PMCID: PMC3862864 DOI: 10.1186/2193-1801-2-640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 11/11/2013] [Indexed: 12/01/2022]
Abstract
In developing countries, bacterial acute gastroenteritis continues to be an important cause of morbidity and mortality among young children. Salmonellosis constitutes a major cause of infectious enteritis worldwide, most of them associated to the consumption of contaminated food products. Traditionally, Salmonella has been classified in serovars based on varieties of O and H surface antigens. In the present work we generated and characterized a panel of anti-flagellin monoclonal antibodies (MAbs) in order to select antibodies useful for detecting the H surface antigen. Four different MAbs were obtained by somatic hybridization of splenocytes. We found two MAbs that recognised regions of flagellin conserved among different Salmonella serovars. Other two MAbs recognised structures restricted to Salmonella enterica sv. Typhimurium, being one of them suitable for agglutination tests. Using a diverse panel of S. enterica serovars with different H antigen varieties we confirmed that this MAb agglutinates specifically S. Typhimurium (antigenic formula: 4,12:i:1,2) or other serovars expressing flagellar factor i. In conclusion, we generated a valuable immunochemical tool to be used in simple assays for serotyping of epidemiologically relevant strains. The capacity to characterize specific strains and determine the primary sources of Salmonella contamination generate valuable information of the epidemiology of this microorganism, contributing to the improvement of public health.
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Affiliation(s)
- Yanina Hiriart
- Laboratorio de Investigaciones del Sistema Inmune (LISIN), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, CP1900 Argentina
| | - Maria Serradell
- Departamento de Ciencias Biológicas, Cátedra de Microbiología, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Araci Martínez
- Departamento de Bacteriología y Virología, Instituto de Higiene, Centro Nacional de Salmonella, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Sofia Sampaolesi
- Departamento de Ciencias Biológicas, Cátedra de Microbiología, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina
| | - Dolores Gonzalez Maciel
- Laboratorio de Investigaciones del Sistema Inmune (LISIN), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, CP1900 Argentina
| | - Jose Alejandro Chabalgoity
- Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Lucía Yim
- Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Gabriela Algorta
- Departamento de Bacteriología y Virología, Instituto de Higiene, Centro Nacional de Salmonella, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Martin Rumbo
- Laboratorio de Investigaciones del Sistema Inmune (LISIN), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, CP1900 Argentina
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Crispo M, Van Maele L, Tabareau J, Cayet D, Errea A, Ferreira AM, Rumbo M, Sirard JC. Transgenic mouse model harboring the transcriptional fusion ccl20-luciferase as a novel reporter of pro-inflammatory response. PLoS One 2013; 8:e78447. [PMID: 24265691 PMCID: PMC3827052 DOI: 10.1371/journal.pone.0078447] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 09/10/2013] [Indexed: 12/12/2022] Open
Abstract
The chemokine CCL20, the unique ligand of CCR6 functions as an attractant of immune cells. Expression of CCL20 is induced by Toll-like Receptor (TLR) signaling or proinflammatory cytokine stimulation. However CCL20 is also constitutively produced at specific epithelial sites of mucosa. This expression profile is achieved by transcriptional regulation. In the present work we characterized regulatory features of mouse Ccl20 gene. Transcriptional fusions between the mouse Ccl20 promoter and the firefly luciferase (luc) encoding gene were constructed and assessed in in vitro and in vivo assays. We found that liver CCL20 expression and luciferase activity were upregulated by systemic administration of the TLR5 agonist flagellin. Using shRNA and dominant negative form specific for mouse TLR5, we showed that this expression was controlled by TLR5. To address in situ the regulation of gene activity, a transgenic mouse line harboring a functional Ccl20-luc fusion was generated. The luciferase expression was highly concordant with Ccl20 expression in different tissues. Our data indicate that the transgenic mouse model can be used to monitor activation of innate response in vivo.
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Affiliation(s)
- Martina Crispo
- Unidad de Animales Transgénicos y de Experimentación – Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Laurye Van Maele
- Institut Pasteur de Lille, Centre d’Infection et d’Immunité de Lille, F-59000 Lille, Region Nord-Pas de Calais, France
- Institut National de la Santé et de la Recherche Médicale, U1019, F-59000 Lille, Region Nord-Pas de Calais France
- Centre National de la Recherche Scientifique, UMR 8204, F-59000 Lille, Region Nord-Pas de Calais France
- Univ Lille Nord de France, F-59000 Lille, Region Nord-Pas de Calais, France
| | - Julien Tabareau
- Institut Pasteur de Lille, Centre d’Infection et d’Immunité de Lille, F-59000 Lille, Region Nord-Pas de Calais, France
- Institut National de la Santé et de la Recherche Médicale, U1019, F-59000 Lille, Region Nord-Pas de Calais France
- Centre National de la Recherche Scientifique, UMR 8204, F-59000 Lille, Region Nord-Pas de Calais France
- Univ Lille Nord de France, F-59000 Lille, Region Nord-Pas de Calais, France
| | - Delphine Cayet
- Institut Pasteur de Lille, Centre d’Infection et d’Immunité de Lille, F-59000 Lille, Region Nord-Pas de Calais, France
- Institut National de la Santé et de la Recherche Médicale, U1019, F-59000 Lille, Region Nord-Pas de Calais France
- Centre National de la Recherche Scientifique, UMR 8204, F-59000 Lille, Region Nord-Pas de Calais France
- Univ Lille Nord de France, F-59000 Lille, Region Nord-Pas de Calais, France
| | - Agustina Errea
- Laboratorio de Investigaciones del Sistema Inmune (LISIN) – National University of La Plata, Provincia de Buenos Aires, Argentina
| | - Ana María Ferreira
- Catedra de Inmunologia, Facultad de Ciencias/Facultad de Quimica, Universidad de la República, Montevideo, Uruguay
| | - Martin Rumbo
- Laboratorio de Investigaciones del Sistema Inmune (LISIN) – National University of La Plata, Provincia de Buenos Aires, Argentina
| | - Jean Claude Sirard
- Institut Pasteur de Lille, Centre d’Infection et d’Immunité de Lille, F-59000 Lille, Region Nord-Pas de Calais, France
- Institut National de la Santé et de la Recherche Médicale, U1019, F-59000 Lille, Region Nord-Pas de Calais France
- Centre National de la Recherche Scientifique, UMR 8204, F-59000 Lille, Region Nord-Pas de Calais France
- Univ Lille Nord de France, F-59000 Lille, Region Nord-Pas de Calais, France
- * E-mail:
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Bottero D, Gaillard ME, Errea A, Moreno G, Zurita E, Pianciola L, Rumbo M, Hozbor D. Outer membrane vesicles derived from Bordetella parapertussis as an acellular vaccine against Bordetella parapertussis and Bordetella pertussis infection. Vaccine 2013; 31:5262-8. [PMID: 24012570 DOI: 10.1016/j.vaccine.2013.08.059] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 08/12/2013] [Accepted: 08/21/2013] [Indexed: 11/30/2022]
Abstract
Bordetella parapertussis, a close related species of B. pertussis, can also cause the disease named pertussis or whooping cough. The number of cases caused by this related pathogen has risen sustained in the last years. The widely used cellular (wP) or acellular (aP) pertussis vaccines have little or no efficacy against B. parapertussis. In an effort to devise an effective acellular vaccine against B. parapertussis infection, outer membrane vesicles (OMVs) were obtained from B. parapertussis. Proteomic analysis of the resulting OMVs, designated OMVsBpp, evidenced the presence of several surface immunogens including pertactin. The characterized OMVsBpp were used in murine B. parapertussis intranasal challenge model to examine their protective capacity when administered by systemic route. Immunized BALB/c mice were challenged with sublethal doses of B. parapertussis. Significant differences between immunized animals and the negative control group were observed (p<0.001). OMVsBpp protected against B. parapertussis infection, whereas current commercial aP vaccine showed little protection against such pathogen. More interestingly, protection induced by OMVsBpp against B. pertussis was comparable to our previously designed vaccine consisting in OMVs derived from B. pertussis (OMVsBp). For these experiments we used as a positive control the current commercial aP vaccine in high dose. As expected aP offered protection against B. pertussis in mice. Altogether the results presented here showed that the OMVs from B. parapertussis are an attractive vaccine candidate to protect against whooping cough induced by B. parapertussis but also by B. pertussis.
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Affiliation(s)
- D Bottero
- Laborartorio VacSal, Instituto de Biotecnología y Biología Molecular, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT La Plata CONICET, Argentina
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27
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Moreno G, Errea A, Van Maele L, Roberts R, Léger H, Sirard JC, Benecke A, Rumbo M, Hozbor D. Toll-like receptor 4 orchestrates neutrophil recruitment into airways during the first hours of Bordetella pertussis infection. Microbes Infect 2013; 15:708-18. [DOI: 10.1016/j.micinf.2013.06.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 06/19/2013] [Accepted: 06/19/2013] [Indexed: 01/16/2023]
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28
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Rumbo C, Zambernardi A, Cabanne A, Rumbo M, Gondolesi G. Sclerosing peritonitis, a rare complication after intestinal transplant. Report of one case successfully treated with adjustment of immunosuppression. Pediatr Transplant 2013; 17:E125-9. [PMID: 23902605 DOI: 10.1111/petr.12110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/05/2013] [Indexed: 01/01/2023]
Abstract
Sclerosing peritonitis is a complication described in different clinical situations, such as patients that underwent prolonged peritoneal dialysis or renal transplantation with previous history of peritoneal dialysis. The origin of this entity is unclear so far and it is believed that several mechanisms may contribute to its development. The hallmark of sclerosing peritonitis is the continuous accumulation of fibrocollagenous deposits in the intestinal wall and mesenteries causing progressive adhesion of the intestinal loops and mesenteric retraction resulting in intestinal obstruction. Also, it has been described as a rare complication after intestinal transplant that might lead to graft failure. In this report, we describe a case of sclerosing peritonitis after intestinal transplantation that was successfully treated with modifications in the immunosuppressive regime allowing restitution of gastrointestinal transit and intestinal autonomy.
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Affiliation(s)
- Carolina Rumbo
- Instituto de Trasplante Multiorgánico (ITMO), Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina.
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29
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Stringa P, Lausada N, Romanin D, Machuca M, Cabanne A, Rumbo M, Gondolesi G. Defining the nonreturn time for intestinal ischemia reperfusion injury in mice. Transplant Proc 2012; 44:1214-7. [PMID: 22663987 DOI: 10.1016/j.transproceed.2011.11.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Accepted: 11/23/2011] [Indexed: 11/15/2022]
Abstract
Among the abdominal organs, the intestine is probably the most sensitive to ischemia reperfusion injury (IRI), a phenomenon that occurs in many intestinal disorders. Few studies have reported in detail the impact of intestinal ischemia time in mice. We evaluated the effect of various warm intestinal ischemia times in an intestinal IRI model in mice. Adult male Balb/c mice were divided into 4 groups that differed in intestinal ischemia time: G1, 30; minutes; G2, 35 minutes; G3, 40 minutes; and G4, 45 minutes. Histological evaluation showed average Park scores as follows: G1 0.6 ± 0.55; G2 1.8 ± 0.45; G3 4.8 ± 2.25; and G4 5 ± 1.79. All animals from G1 survived 30 hours. G2 animals showed intermediate behavior with all succumbing between 18 and 30 hours postprocedure. G3 and G4 displayed similar survival results with animals succumbing before 6 hours after intestinal reperfusion. These data showed that Park index scores of 3 or higher were related to early death. We concluded that the 5 minutes between 35 and 40 minutes is the critical limit, after which all mice die after reperfusion. This result may represent a valuable tool for future research in mice.
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Affiliation(s)
- P Stringa
- Laboratorio de Microcirugía Experimental-Universidad Favaloro, Unidad Asociada a la Comisión Nacional de Investigación Científica, CONICET/Instituto de Transplante Multiorgánico, Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina.
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30
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Christensen J, El-Gebali S, Natoli M, Sengstag T, Delorenzi M, Bentz S, Bouzourene H, Rumbo M, Felsani A, Siissalo S, Hirvonen J, Vila MR, Saletti P, Aguet M, Anderle P. Defining new criteria for selection of cell-based intestinal models using publicly available databases. BMC Genomics 2012; 13:274. [PMID: 22726358 PMCID: PMC3412164 DOI: 10.1186/1471-2164-13-274] [Citation(s) in RCA: 47] [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] [Received: 04/13/2012] [Accepted: 06/22/2012] [Indexed: 02/07/2023] Open
Abstract
Background The criteria for choosing relevant cell lines among a vast panel of available intestinal-derived lines exhibiting a wide range of functional properties are still ill-defined. The objective of this study was, therefore, to establish objective criteria for choosing relevant cell lines to assess their appropriateness as tumor models as well as for drug absorption studies. Results We made use of publicly available expression signatures and cell based functional assays to delineate differences between various intestinal colon carcinoma cell lines and normal intestinal epithelium. We have compared a panel of intestinal cell lines with patient-derived normal and tumor epithelium and classified them according to traits relating to oncogenic pathway activity, epithelial-mesenchymal transition (EMT) and stemness, migratory properties, proliferative activity, transporter expression profiles and chemosensitivity. For example, SW480 represent an EMT-high, migratory phenotype and scored highest in terms of signatures associated to worse overall survival and higher risk of recurrence based on patient derived databases. On the other hand, differentiated HT29 and T84 cells showed gene expression patterns closest to tumor bulk derived cells. Regarding drug absorption, we confirmed that differentiated Caco-2 cells are the model of choice for active uptake studies in the small intestine. Regarding chemosensitivity we were unable to confirm a recently proposed association of chemo-resistance with EMT traits. However, a novel signature was identified through mining of NCI60 GI50 values that allowed to rank the panel of intestinal cell lines according to their drug responsiveness to commonly used chemotherapeutics. Conclusions This study presents a straightforward strategy to exploit publicly available gene expression data to guide the choice of cell-based models. While this approach does not overcome the major limitations of such models, introducing a rank order of selected features may allow selecting model cell lines that are more adapted and pertinent to the addressed biological question.
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Affiliation(s)
- Jon Christensen
- 1Institute for Macromolecular Chemistry and Center for Biological Signaling Studies (BIOSS), University of Freiburg, Freiburg, Germany
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31
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Hiriart Y, Errea A, González Maciel D, Lopez JC, Rumbo M. A method for the purification of bacterial flagellin that allows simple upscaling. World J Microbiol Biotechnol 2011; 28:15-21. [DOI: 10.1007/s11274-011-0786-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Accepted: 05/09/2011] [Indexed: 10/25/2022]
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32
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Meier D, Cagnola H, Ramisch D, Rumbo C, Chirdo F, Docena G, Gondolesi GE, Rumbo M. Analysis of immune cells draining from the abdominal cavity as a novel tool to study intestinal transplant immunobiology. Clin Exp Immunol 2010; 162:138-45. [PMID: 20831713 DOI: 10.1111/j.1365-2249.2010.04192.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
During intestinal transplant (ITx) operation, intestinal lymphatics are not reconstituted. Consequently, trafficking immune cells drain freely into the abdominal cavity. Our aim was to evaluate whether leucocytes migrating from a transplanted intestine could be recovered from the abdominal draining fluid collected by a peritoneal drainage system in the early post-ITx period, and to determine potential applications of the assessment of draining cellular populations. The cell composition of the abdominal draining fluid was analysed during the first 11 post-ITx days. Using flow cytometry, immune cells from blood and draining fluid samples obtained the same day showed an almost complete lymphopenia in peripheral blood, whereas CD3(+) CD4(+) CD8(-) , CD3(+) CD4(-) CD8(+) and human leucocyte antigen D-related (HLA-DR)(+) CD19(+) lymphocytes were the main populations in the draining fluid. Non-complicated recipients evolved from a mixed leucocyte pattern including granulocytes, monocytes and lymphocytes to an exclusively lymphocytic pattern along the first post-ITx week. At days 1-2 post-Itx, analysis by short tandem repeats fingerprinting of CD3(+) CD8(+) sorted T cells from draining fluid indicated that 50% of cells were from graft origin, whereas by day 11 post-ITx this proportion decreased to fewer than 1%. Our results show for the first time that the abdominal drainage fluid contains mainly immune cells trafficking from the implanted intestine, providing the opportunity to sample lymphocytes draining from the grafted organ along the post-ITx period. Therefore, this analysis may provide information useful for understanding ITx immunobiology and eventually could also be of interest for clinical management.
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Affiliation(s)
- D Meier
- Laboratorio de Investigaciones del Sistema Inmune (LISIN) - FCE - Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
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Dujardin JC, Herrera S, do Rosario V, Arevalo J, Boelaert M, Carrasco HJ, Correa-Oliveira R, Garcia L, Gotuzzo E, Gyorkos TW, Kalergis AM, Kouri G, Larraga V, Lutumba P, Macias Garcia MA, Manrique-Saide PC, Modabber F, Nieto A, Pluschke G, Robello C, Rojas de Arias A, Rumbo M, Santos Preciado JI, Sundar S, Torres J, Torrico F, Van der Stuyft P, Victoir K, Olesen OF. Research priorities for neglected infectious diseases in Latin America and the Caribbean region. PLoS Negl Trop Dis 2010; 4:e780. [PMID: 21049009 PMCID: PMC2964298 DOI: 10.1371/journal.pntd.0000780] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Rumbo M, Chirdo FG, Fossati CA, Anon MC. Analysis of Anti-Prolamin Monoclonal Antibody Reactivity Using Prolamin Fractions Purified by Preparative Electrophoresis. FOOD AGR IMMUNOL 2010. [DOI: 10.1080/09540100099616] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Errea A, Moreno G, Sisti F, Fernández J, Rumbo M, Hozbor DF. Mucosal innate response stimulation induced by lipopolysaccharide protects against Bordetella pertussis colonization. Med Microbiol Immunol 2010; 199:103-8. [DOI: 10.1007/s00430-010-0142-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Indexed: 12/12/2022]
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Gruz F, Fuxman C, Errea A, Tokumoto M, Fernandez A, Velasquez J, Nagel C, Ruf A, Mauriño E, Nachman F, Rumbo M, Gondolesi G. Isospora belli infection after isolated intestinal transplant. Transpl Infect Dis 2010; 12:69-72. [DOI: 10.1111/j.1399-3062.2009.00439.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Crispo M, Cárdenas-Rodriguez M, Schlapp G, Fernández G, Rumbo M. 422 GENERATION OF REPORTER TRANSGENIC MICE FOR THE CHEMOKINE CXCL2 USING TWO DIFFERENT DNA CONCENTRATIONS. Reprod Fertil Dev 2010. [DOI: 10.1071/rdv22n1ab422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Transgenic mice have important implications in biomedicine, and are widely employed to understand gene functions and their regulation. The improvement of transgenic efficiency is relevant because of the low rate of success for this technology. CXCL2 is a chemokine secreted by macrophages and epithelial cells under proinflammatory stimulus of the innate immune response such as bacterial endotoxins. The main effect of CXCL2 is the recruitment of neutrophils to the site of production to fight infections. The objective of this study was to evaluate the effect of 2 DNA concentrations in the efficiency of the transgenesis process. To this aim we used a luciferase reporter under the control of CXCL2 promoter for the generation of a transgenic line to report activation of innate immune response. A total of 1727 1-cell embryos were divided into 2 experimental groups to be microinjected with 0.5 or 1.0 ng μL-1 of DNA in 25 sessions. Three-week-old B6SJL F1 females (n = 131) were superovulated with 5 IU of eCG i.p. (Novormon, Syntex, Buenos Aires, Argentina) and 5 IU of hCG i.p. (Ovusyn, Syntex) 46 h later, and mated with B6SJL F1 stud males. At the moment of hCG treatment, foster females were mated with vasectomized males to induce pseudogestation. Donor females were euthanized by cervical dislocation 20 h after hCG treatment, and embryos were recovered from the ampulla, denuded in 300 μg mL-1 hyaluronidase (Sigma, St. Louis, MO, USA) and incubated at 37°C with 5% CO2, in drops of M16 media (Sigma) under mineral oil, until microinjection. DNA construction consisted of the luciferase reporter gene under the control of the murine CXCL2 gene promoter. Embryos were microinjected into 1 pronucleus under an inverted microscope (Nikon, NY, USA) using glass microtools and mechanic micromanipulators (Eppendorf, Hamburg, Germany). Intact/injected embryos were assessed 30 min after microinjection. Fifteen to 20 embryos per foster female were transferred in both oviducts. Birth rate, survival of pups at Day 7 after birth, number of transgenic pups assessed by standard PCR, and overall transgenic efficiency was registered for each group. Data were analyzed by Yates-corrected chi-square test. No statistical differences were founded except for a higher number of pups alive/embryo transferred in the lower DNA concentration, suggesting the advantage of using 0.5 ng μL-1 v. 1.0 ng μL-1.
Table 1.Effect of DNA concentration in the generation of CXCL2-luc transgenic mice
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Cagnola H, Scaravonati R, Cabanne A, Bianchi C, Gruz F, Errea A, Zambernardi A, Meier D, Chirdo F, Docena G, Gondolesi G, Rumbo M. Evaluation of Calprotectin Level in Intestinal Content as an Early Marker for Graft Rejection. Transplant Proc 2010; 42:57-61. [DOI: 10.1016/j.transproceed.2009.12.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Sirard JC, Didierlaurent A, Cayet D, Sierro F, Rumbo M. Toll-like receptor 5- and lymphotoxin beta receptor-dependent epithelial Ccl20 expression involves the same NF-kappaB binding site but distinct NF-kappaB pathways and dynamics. Biochim Biophys Acta 2009; 1789:386-94. [PMID: 19303953 DOI: 10.1016/j.bbagrm.2009.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Revised: 02/24/2009] [Accepted: 03/06/2009] [Indexed: 10/21/2022]
Abstract
Canonical and alternative NF-kappaB pathways depend on distinct NF-kappaB members and regulate expression of different gene subset in inflammatory and steady state conditions, respectively. In intestinal epithelial cells, both pathways control the transcription of the gene coding the CCL20 chemokine. Lymphotoxin beta receptor (LTbetaR) mediates long lasting CCL20 expression whereas Toll-like receptor 5 (TLR5) signals promote inducible and transient activation. Here, we investigated whether the regulation of ccl20 expression involves different promoter sites and NF-kappaB molecules in response to TLR5 and LTbetaR stimulation. In epithelial cells, both stimulation required the same promoter regions, especially the NF-kappaB binding site but involved different NF-kappaB isoforms: p65/p50 and p52/RelB, for TLR5 and LTbetaR-dependent activation, respectively. The dynamic of activation and interaction with CCL20-specific NF-kappaB site correlated with gene transcription. Similar Ccl20 expression and NF-kappaB activation was found in the small intestine of mice stimulated with TLR5 and LTbetaR agonists. In summary, different NF-kappaB pathways modulate CCL20 transcription by operating on the same NF-kappaB binding site in the same cell type.
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Affiliation(s)
- Jean-Claude Sirard
- Institut National de la Santé et de la Recherche Médicale U801, Institut Pasteur de Lille, Université de Lille 2, Lille, France
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Nempont C, Cayet D, Rumbo M, Bompard C, Villeret V, Sirard JC. Deletion of flagellin's hypervariable region abrogates antibody-mediated neutralization and systemic activation of TLR5-dependent immunity. J Immunol 2008; 181:2036-43. [PMID: 18641341 DOI: 10.4049/jimmunol.181.3.2036] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
TLRs trigger immunity by detecting microbe-associated molecular patterns (MAMPs). Flagellin is a unique MAMP because it harbors 1) an antigenic hypervariable region and 2) a conserved domain involved in TLR5-dependent systemic and mucosal proinflammatory and adjuvant activities. In this study, the contribution of the flagellin domains in TLR5 activation was investigated. We showed that TLR5 signaling can be neutralized in vivo by flagellin-specific Abs, which target the conserved domain. However, deletions of flagellin's hypervariable region abrogated the protein's intrinsic ability to trigger the production of neutralizing Abs. The fact that MAMP-specific Abs block TLR-mediated responses shows that this type of neutralization is a novel mechanism for down-regulating innate immunity. The stimulation of mucosal innate immunity and adjuvancy to foreign Ag was not altered by the hypervariable domain deletions. In contrast, this domain is essential to trigger systemic innate immunity, suggesting that there are distinct mechanisms for TLR5 activation in systemic and mucosal compartments. In summary, specific MAMP determinants control the production of neutralizing Abs and the compartmentalization of innate responses.
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Affiliation(s)
- Clément Nempont
- Institut National de la Santé et de la Recherche Médicale, Unité 801, Institut Pasteur de Lille, Université de Lille 2, Lille, France
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Roberts R, Moreno G, Bottero D, Gaillard ME, Fingermann M, Graieb A, Rumbo M, Hozbor D. Outer membrane vesicles as acellular vaccine against pertussis. Vaccine 2008; 26:4639-46. [DOI: 10.1016/j.vaccine.2008.07.004] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 06/27/2008] [Accepted: 07/01/2008] [Indexed: 10/21/2022]
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Petruccelli S, Otegui MS, Lareu F, Tran Dinh O, Fitchette AC, Circosta A, Rumbo M, Bardor M, Carcamo R, Gomord V, Beachy RN. A KDEL-tagged monoclonal antibody is efficiently retained in the endoplasmic reticulum in leaves, but is both partially secreted and sorted to protein storage vacuoles in seeds. Plant Biotechnol J 2006; 4:511-27. [PMID: 17309727 DOI: 10.1111/j.1467-7652.2006.00200.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Transgenic plants are attractive biological systems for the large-scale production of pharmaceutical proteins. In particular, seeds offer special advantages, such as ease of handling and long-term stable storage. Nevertheless, most of the studies of the expression of antibodies in plants have been performed in leaves. We report the expression of a secreted (sec-Ab) or KDEL-tagged (Ab-KDEL) mutant of the 14D9 monoclonal antibody in transgenic tobacco leaves and seeds. Although the KDEL sequence has little effect on the accumulation of the antibody in leaves, it leads to a higher antibody yield in seeds. sec-Ab(Leaf) purified from leaf contains complex N-glycans, including Lewis(a) epitopes, as typically found in extracellular glycoproteins. In contrast, Ab-KDEL(Leaf) bears only high-mannose-type oligosaccharides (mostly Man 7 and 8) consistent with an efficient endoplasmic reticulum (ER) retention/cis-Golgi retrieval of the antibody. sec-Ab and Ab-KDEL gamma chains purified from seeds are cleaved by proteases and contain complex N-glycans indicating maturation in the late Golgi compartments. Consistent with glycosylation of the protein, Ab-KDEL(Seed) was partially secreted and sorted to protein storage vacuoles (PSVs) in seeds and not found in the ER. This dual targeting may be due to KDEL-mediated targeting to the PSV and to a partial saturation of the vacuolar sorting machinery. Taken together, our results reveal important differences in the ER retention and vacuolar sorting machinery between leaves and seeds. In addition, we demonstrate that a plant-made antibody with triantennary high-mannose-type N-glycans has similar Fab functionality to its counterpart with biantennary complex N-glycans, but the former antibody interacts with protein A in a stronger manner and is more immunogenic than the latter. Such differences could be related to a variable immunoglobulin G (IgG)-Fc folding that would depend on the size of the N-glycan.
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Affiliation(s)
- Silvana Petruccelli
- CIDCA, Fac.Cs Exactas, Universidad Nacional de La Plata, La Plata, Argentina.
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Rumbo M, Nempont C, Kraehenbuhl JP, Sirard JC. Mucosal interplay among commensal and pathogenic bacteria: lessons from flagellin and Toll-like receptor 5. FEBS Lett 2006; 580:2976-84. [PMID: 16650409 DOI: 10.1016/j.febslet.2006.04.036] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2006] [Accepted: 04/08/2006] [Indexed: 12/19/2022]
Abstract
Toll-like receptors (TLR) detect pathogen-associated molecular patterns (PAMP) and play a crucial role in triggering immunity. Due to their large surfaces in direct contact with the environment, mucosal tissues are the major sites of PAMP-TLR signalling. How innate and adaptive immunity are triggered through flagellin-TLR5 interaction is the main focus of the review. In view of recent reports on genetic polymorphism, we will summarize the impact of TLR5 on the susceptibility to mucosal infections and on various immuno-pathologies. Finally, the contribution of TLRs in the induction and maintenance of mucosal homeostasis and commensal discrimination is discussed.
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Affiliation(s)
- Martin Rumbo
- UNLP, Laboratorio de Investigaciones en el Sistema Inmune, Facultad de Ciencias Exactas, La Plata, Argentina
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Anderle P, Rumbo M, Sierro F, Mansourian R, Michetti P, Roberts MA, Kraehenbuhl JP. Novel markers of the human follicle-associated epithelium identified by genomic profiling and microdissection. Gastroenterology 2005; 129:321-7. [PMID: 16012957 DOI: 10.1053/j.gastro.2005.03.044] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
BACKGROUND & AIMS Regulation of gene expression in the follicle-associated epithelium (FAE) over Peyer's patches is largely unknown. CCL20, a chemokine that recruits immature dendritic cells, is one of the few FAE-specific markers described so far. Lymphotoxin beta (LTalpha1beta2) expressed on the membrane of immune cells triggers CCL20 expression in enterocytes. In this study, we measured expression profiles of LTalpha1beta2-treated intestinal epithelial cells and selected CCL20 -coregulated genes to identify new FAE markers. METHODS Genomic profiles of T84 and Caco-2 cell lines treated with either LTalpha1beta2, flagellin, or tumor necrosis factor alpha were measured using the Affymetrix GeneChip U133A. Clustering analysis was used to select CCL20 -coregulated genes, and laser dissection microscopy and real-time polymerase chain reaction on human biopsy specimens was used to assess the expression of the selected markers. RESULTS Applying a 2-way analysis of variance, we identified regulated genes upon the different treatments. A subset of genes involved in inflammation and related to the nuclear factor kappaB pathway was coregulated with CCL20 . Among these genes, the antiapoptotic factor TNFAIP3 was highly expressed in the FAE. CCL23 , which was not coregulated in vitro with CCL20 , was also specifically expressed in the FAE. CONCLUSIONS We have identified 2 novel human FAE specifically expressed genes. Most of the CCL20 -coregulated genes did not show FAE-specific expression, suggesting that other signaling pathways are critical to modulate FAE-specific gene expression.
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Affiliation(s)
- Pascale Anderle
- Swiss Institute for Experimental Cancer Research and Institute of Biochemistry, University of Lausanne, Epalinges, Switzerland
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Abstract
Intestinal mucosa integrates primary digestive functions with immune functions such as pathogen surveillance, antigen transport and induction of mucosal immunity and tolerance. Intestinal adaptive immunity is elicited in organized mucosa-associated lymphoid tissue (O-MALT) that is composed of antigen-presenting cells and lymphocytes and achieved by effector cells widely distributed in mucosa (diffuse MALT or D-MALT). Interaction between the intestinal epithelium, the O-MALT and the diffuse MALT plays a critical role in establishing an adequate immune response. In regions associated to O-MALT, lympho-epithelial cross-talks lead to acquisition of a specific epithelial phenotype that contributes to O-MALT organization and functionality. Beyond the expression of several innate immune functions, the intestinal epithelium may directly take up and present antigens due to the expression of major histocompatibility complex (MHC) and MHC-related molecules. A complex genetic program that will be outlined in the present review controls the development of immune functions of the intestinal epithelium. The effect of environmental signals on the modulation of this ontogenetic program during development and neonatal life, from bioactive components of amniotic fluid to lactation and bacterial colonization, will be discussed.
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Affiliation(s)
- M Rumbo
- Cátedra de Immunologia, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, La Plata, Argentina.
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Anderle P, Sengstag T, Mutch DM, Rumbo M, Praz V, Mansourian R, Delorenzi M, Williamson G, Roberts MA. Changes in the transcriptional profile of transporters in the intestine along the anterior-posterior and crypt-villus axes. BMC Genomics 2005; 6:69. [PMID: 15882471 PMCID: PMC1145182 DOI: 10.1186/1471-2164-6-69] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Accepted: 05/10/2005] [Indexed: 01/03/2023] Open
Abstract
Background The purpose of this work was to characterize the expression of drug and nutrient carriers along the anterior-posterior and crypt-villus axes of the intestinal epithelium and to study the validity of utilizing whole gut tissue rather than purified epithelial cells to examine regional variations in gene expression. Results We have characterized the mRNA expression profiles of 76 % of all currently known transporters along the anterior-posterior axis of the gut. This is the first study to describe the expression profiles of the majority of all known transporters in the intestine. The expression profiles of transporters, as defined according to the Gene Ontology consortium, were measured in whole tissue of the murine duodenum, jejunum, ileum and colon using high-density microarrays. For nine transporters (Abca1, Abcc1, Abcc3, Abcg8, Slc10a2, Slc28a2, Slc2a1, Slc34a2 and Slc5a8), the mRNA profiles were further measured by RT-PCR in laser micro-dissected crypt and villus epithelial cells corresponding to the aforementioned intestinal regions. With respect to differentially regulated transporters, the colon had a distinct expression profile from small intestinal segments. The majority (59 % for p cutoff ≤ 0.05) of transporter mRNA levels were constant across the intestinal sections studied. For the transporter subclass "carrier activity", which contains the majority of known carriers for biologically active compounds, a significant change (p ≤ 0.05) along the anterior-posterior axis was observed. Conclusion All nine transporters examined in laser-dissected material demonstrated good replication of the region-specific profiles revealed by microarray. Furthermore, we suggest that the distribution characteristics of Slc5a8 along the intestinal tract render it a suitable candidate carrier for monocarboxylate drugs in the posterior portion of the intestine. Our findings also predict that there is a significant difference in the absorption of carrier-mediated compounds in the different intestinal segments. The most pronounced differences can be expected between the adjoining segments ileum and colon, but the differences between the other adjoining segments are not negligible. Finally, for the examined genes, profiles measured in whole intestinal tissue extracts are representative of epithelial cell-only gene expression.
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Affiliation(s)
- Pascale Anderle
- ISREC, Swiss Institute for Experimental Cancer Research, 1066 Epalinges s/Lausanne, Switzerland
| | - Thierry Sengstag
- Swiss Institute for Experimental Cancer Research (ISREC) and Swiss Institute of Bioinformatics (SIB), NCCR Molecular Oncology, CH-1066 Epalinges s/Lausanne, Switzerland
| | - David M Mutch
- Nestle Research Center, Vers-chez-les-Blanc, 1000 Lausanne 26, Switzerland
| | - Martin Rumbo
- ISREC, Swiss Institute for Experimental Cancer Research, 1066 Epalinges s/Lausanne, Switzerland
| | - Viviane Praz
- ISREC and Swiss Institute of Bioinformatics, 1066 Epalinges s/Lausanne, Switzerland
| | - Robert Mansourian
- Nestle Research Center, Vers-chez-les-Blanc, 1000 Lausanne 26, Switzerland
| | - Mauro Delorenzi
- Swiss Institute for Experimental Cancer Research (ISREC) and Swiss Institute of Bioinformatics (SIB), NCCR Molecular Oncology, CH-1066 Epalinges s/Lausanne, Switzerland
| | - Gary Williamson
- Nestle Research Center, Vers-chez-les-Blanc, 1000 Lausanne 26, Switzerland
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Rumbo M, Courjault-Gautier F, Sierro F, Sirard JC, Felley-Bosco E. Polarized distribution of inducible nitric oxide synthase regulates activity in intestinal epithelial cells. FEBS J 2005; 272:444-53. [PMID: 15654882 PMCID: PMC1865480 DOI: 10.1111/j.1742-4658.2004.04484.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [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: 01/17/2023]
Abstract
Inducible nitric oxide synthase (iNOS) functions as a homodimer. In cell extracts, iNOS molecules partition both in cytosolic and particulate fractions, indicating that iNOS exists as soluble and membrane associated forms. In this study, iNOS features were investigated in human intestinal epithelial cells stimulated with cytokines and in duodenum from mice exposed to flagellin. Our experiments indicate that iNOS is mainly associated with the particulate fraction of cell extracts. Confocal microscopy showed a preferential localization of iNOS at the apical pole of intestinal epithelial cells. In particulate fractions, iNOS dimers were more abundant than in the cytosolic fraction. Similar observations were seen in mouse duodenum samples. These results suggest that, in epithelial cells, iNOS activity is regulated by localization-dependent processes.
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Affiliation(s)
- Martin Rumbo
- Swiss Experimental Cancer Research center
1066 Epalinges,CH
| | | | | | | | - Emanuela Felley-Bosco
- Institute of Pharmacology and Toxicology
Université de LausanneLausanne,CH
- * Correspondence should be adressed to:
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Abstract
Mucosal surfaces represent the main sites in which environmental microorganisms and antigens interact with the host. Sentinel cells, including epithelial cells, lumenal macrophages, and intraepithelial dendritic cells, continuously sense the environment and coordinate defenses for the protection of mucosal tissues. The mucosal epithelial cells are crucial actors in coordinating defenses. They sense the outside world and respond to environmental signals by releasing chemokines and cytokines that recruit inflammatory and immune cells to control potential infectious agents and to attract cells able to trigger immune responses. Among immune cells, dendritic cells (DC) play a key role in controlling adaptive immune responses, due to their capacity to internalize foreign materials and to present antigens to naive T and B lymphocytes, locally or in draining organized lymphoid tissues. Immune cells recruited in epithelial tissues can, in turn, act upon the epithelial cells and change their phenotype in a process referred to as epithelial metaplasia.
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Affiliation(s)
- Martin Rumbo
- Swiss Institute for Experimental Cancer Research, CH-1066 Epalinges, Switzerland
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Abstract
Flagella contribute to the virulence of pathogenic bacteria through chemotaxis, adhesion to and invasion of host surfaces. Flagellin is the structural protein that forms the major portion of flagellar filaments. Thus, flagellin consists of a conserved domain that is widespread in bacterial species and is dedicated to filament polymerization. Conversely, mammalian hosts detect the conserved domain on flagellin monomers through Toll-like receptor (TLR) 5, which triggers proinflammatory and adaptive immune responses. This review describes the relationships among flagellin molecular structure, bacterial virulence and host defenses, with special emphasis on mucosal tissues.
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Affiliation(s)
- Hugo Cruz Ramos
- Equipe AVENIR-INSERM d'Immunité Anti-microbienne des Muqueuses, E0364, Institut Pasteur de Lille, Institut de Biologie, 1 rue du Professeur Calmette, BP 447 - 59021 Lille, France
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Abstract
BACKGROUND & AIMS The follicle-associated epithelium (FAE) that overlies Peyer's patches (PPs) exhibits distinct features compared with the adjacent villus epithelium. Besides the presence of antigen-sampling membranous M cells and the down-regulation of digestive functions, it constitutively expresses the chemokine CCL20. The mechanisms that induce FAE differentiation and CCL20 expression are poorly understood. The aim of this work was to test whether lymphotoxin beta receptor signaling (LTbetaR), which plays a central role in PPs' organogenesis, mediates CCL20 gene expression in intestinal epithelial cells. METHODS CCL20, lymphotoxin beta (LTbeta) and LTbetaR expression were monitored during embryonic development by in situ hybridization of mouse intestine. The human intestinal epithelial cell line T84 was used to study CCL20 expression following LTalpha(1)/beta(2) stimulation. In vivo CCL20 expression following agonistic anti-LTbetaR antibody treatment was studied by laser microdissection and quantitative RT-PCR. RESULTS CCL20 was expressed in the FAE before birth at the time when the first hematopoietic CD4(+)CD3(-) appeared in the PP anlage. LTbetaR was expressed in the epithelium during PP organogenesis, making it a putative target for LTalpha(1)beta(2)signals. In vitro, CCL20 was induced in T84 cells upon LTbetaR signaling, either using an agonistic ligand or anti-LTbeta receptor agonistic antibody. LTalpha(1)beta(2)-induced CCL20 expression was found to be NF-kappaB dependent. LTbetaR signaling up-regulated CCL20 expression in the small intestinal epithelium in vivo. CONCLUSIONS Our results show that LTbetaR signaling induces CCL20 expression in intestinal epithelial cells, suggesting that this pathway triggers constitutive production of CCL20 in the FAE.
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Affiliation(s)
- Martin Rumbo
- Swiss Institute for Experimental Cancer Research, Lausanne Branch, Epalinges, Switzerland
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