1
|
Pan J, Yao WL, Liu LP, Wang BS, Chai WZ, Huang Z, Fan XP, He WH, Wang WH, Zhang WD. Moniezia benedeni infection increases IgE + cells in sheep (Ovis aries) small intestine. Vet Parasitol 2024; 328:110169. [PMID: 38520755 DOI: 10.1016/j.vetpar.2024.110169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/07/2024] [Accepted: 03/10/2024] [Indexed: 03/25/2024]
Abstract
The concentration of immunoglobulin (Ig) E is the lowest among serum Igs, but it can induces type I hypersensitivity and plays an important role in anti-parasitic infection. The present study aimed to explore the residence characteristics of IgE+ cells in the sheep small intestine and the impact of Moniezia benedeni infection on them. The recombinant plasmids pET-28a-IgE were constructed and induced and expressed in Escherichia coli. BL21 (DE3). The rabbit anti-sheep IgE polyclonal antibody was prepared using the obtained recombinant protein as antigen. Finally, the levels of IgE+ cells in the small intestine of healthy (Control group) and naturally M. benedeni-infected (Infected group) sheep were detected analyzed. The results showed that the rabbit anti-sheep IgE polyclonal antibody with good immunogenicity (titer = 1: 128000) could specifically bind to the heavy chain of natural sheep IgE. In the Control group, the IgE+ cells were mainly distributed in lamina propria of the small intestine, and the densities were significantly decreased from duodenum to ileum (P<0.05), with respective values of (4.28 cells / 104 μm2, 1.80 cells / 104 μm2, and 1.44 cells / 104 μm2 in duodenum, jejunum, and ileum. In the Infected group, IgE+ cells density were 6.26 cells / 104 μm2, 3.01 cells / 104 μm2, and 2.09 cells / 104 μm2 in duodenum, jejunum and ileum respectively, which were significantly higher in all segments compared to the Control group (P<0.05), increasing by 46.26%, 67.22% and 45.14%, respectively. In addition, compared with the Control group, the IgE protein levels were significantly increased in all intestinal segments of the Infected group (P<0.01), however, there was no significant differences among the different intestinal segments within the same group (P>0.05). The results demonstrated that M. benedeni infection could significantly increase the content of IgE and the distribution density of its secreting cells in sheep small intestine. The intestinal mucosal immune system of sheep presented obvious specificity against M. benedeni infection. This lays a good foundation for further exploring molecular mechanisms of the intestinal mucosal immune system monitoring and responding to M. benedeni infection.
Collapse
Affiliation(s)
- Jing Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wan-Ling Yao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Li-Ping Liu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Bao-Shan Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wen-Zhu Chai
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Zhen Huang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Xi-Ping Fan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wan-Hong He
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wen-Hui Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China
| | - Wang-Dong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, China.
| |
Collapse
|
2
|
Plum T, Binzberger R, Thiele R, Shang F, Postrach D, Fung C, Fortea M, Stakenborg N, Wang Z, Tappe-Theodor A, Poth T, MacLaren DAA, Boeckxstaens G, Kuner R, Pitzer C, Monyer H, Xin C, Bonventre JV, Tanaka S, Voehringer D, Vanden Berghe P, Strid J, Feyerabend TB, Rodewald HR. Mast cells link immune sensing to antigen-avoidance behaviour. Nature 2023; 620:634-642. [PMID: 37438525 PMCID: PMC10432277 DOI: 10.1038/s41586-023-06188-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 05/10/2023] [Indexed: 07/14/2023]
Abstract
The physiological functions of mast cells remain largely an enigma. In the context of barrier damage, mast cells are integrated in type 2 immunity and, together with immunoglobulin E (IgE), promote allergic diseases. Allergic symptoms may, however, facilitate expulsion of allergens, toxins and parasites and trigger future antigen avoidance1-3. Here, we show that antigen-specific avoidance behaviour in inbred mice4,5 is critically dependent on mast cells; hence, we identify the immunological sensor cell linking antigen recognition to avoidance behaviour. Avoidance prevented antigen-driven adaptive, innate and mucosal immune activation and inflammation in the stomach and small intestine. Avoidance was IgE dependent, promoted by Th2 cytokines in the immunization phase and by IgE in the execution phase. Mucosal mast cells lining the stomach and small intestine rapidly sensed antigen ingestion. We interrogated potential signalling routes between mast cells and the brain using mutant mice, pharmacological inhibition, neural activity recordings and vagotomy. Inhibition of leukotriene synthesis impaired avoidance, but overall no single pathway interruption completely abrogated avoidance, indicating complex regulation. Collectively, the stage for antigen avoidance is set when adaptive immunity equips mast cells with IgE as a telltale of past immune responses. On subsequent antigen ingestion, mast cells signal termination of antigen intake. Prevention of immunopathology-causing, continuous and futile responses against per se innocuous antigens or of repeated ingestion of toxins through mast-cell-mediated antigen-avoidance behaviour may be an important arm of immunity.
Collapse
Affiliation(s)
- Thomas Plum
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany.
| | - Rebecca Binzberger
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Robin Thiele
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Fuwei Shang
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Medicine, Heidelberg University, Heidelberg, Germany
| | - Daniel Postrach
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Candice Fung
- Laboratory for Enteric NeuroScience Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Marina Fortea
- Laboratory for Enteric NeuroScience Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Nathalie Stakenborg
- Laboratory for Intestinal Neuroimmune Interactions, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Zheng Wang
- Laboratory for Intestinal Neuroimmune Interactions, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | | | - Tanja Poth
- Center for Model System and Comparative Pathology, Institute of Pathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Duncan A A MacLaren
- Department of Clinical Neurobiology of the Medical Faculty of Heidelberg University and German Cancer Research Center, Heidelberg, Germany
| | - Guy Boeckxstaens
- Laboratory for Intestinal Neuroimmune Interactions, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Rohini Kuner
- Pharmacology Institute, Heidelberg University, Heidelberg, Germany
| | - Claudia Pitzer
- Interdisciplinary Neurobehavioral Core, Heidelberg University, Heidelberg, Germany
| | - Hannah Monyer
- Department of Clinical Neurobiology of the Medical Faculty of Heidelberg University and German Cancer Research Center, Heidelberg, Germany
| | - Cuiyan Xin
- Division of Renal Medicine and Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Joseph V Bonventre
- Division of Renal Medicine and Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Satoshi Tanaka
- Laboratory of Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, Kyoto, Japan
| | - David Voehringer
- Department of Infection Biology, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Pieter Vanden Berghe
- Laboratory for Enteric NeuroScience Translational Research Center for Gastrointestinal Disorders, KU Leuven, Leuven, Belgium
| | - Jessica Strid
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Thorsten B Feyerabend
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany
| | - Hans-Reimer Rodewald
- Division for Cellular Immunology, German Cancer Research Center, Heidelberg, Germany.
| |
Collapse
|
3
|
Vernersson M, Aveskogh M, Hellman L. Cloning of IgE from the echidna (Tachyglossus aculeatus) and a comparative analysis of epsilon chains from all three extant mammalian lineages. Dev Comp Immunol 2004; 28:61-75. [PMID: 12962983 DOI: 10.1016/s0145-305x(03)00084-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In continuation of our evolutionary studies of immunoglobulin (Ig) expression, we present here the cloning of IgE from a monotreme, the short-beaked echidna (Tachyglossus aculeatus). Including echidna IgE, 15 epsilon chain sequences have been isolated and each of the three mammalian lineages (placentals, marsupials and monotremes) is now represented by at least two sequences. Phylogenetic analyses based on all available epsilon chains and a selection of other mammalian Ig isotypes (IgM, IgA and IgG) were generated using three different algorithms. The resulting trees strongly support the Theria hypothesis, which states that the monotreme lineage was the first of the three extant mammalian lineages to appear in evolution. Furthermore, to increase our understanding of IgE we have done a detailed comparative analysis, with focus on primary structure, potential N-glycosylation, charge distribution and conservation of residues in the putative receptor-binding site. The overall structure of IgE, i.e. four constant domains and the positions of putative disulfide-bridge formations, are conserved, as is an N-glycosylation site in the third constant domain. An increased homology was observed in the putative receptor-binding site, which suggests an important function for the IgE/Fc epsilon RI interaction. IgE has been found exclusively in mammals, but it is present in all extant mammalian lineages. This, together with the overall conservation of structure, indicates that IgE appeared as a separate isotype early in mammalian evolution and that structural maintenance may have a selective advantage.
Collapse
Affiliation(s)
- Molly Vernersson
- Department of Cell and Molecular Biology, Immunology Programme-Biomedical Center, University of Uppsala, P.O. Box 596, S-751 24, Uppsala, Sweden
| | | | | |
Collapse
|
4
|
Jankovic D, Wynn TA, Kullberg MC, Hieny S, Caspar P, James S, Cheever AW, Sher A. Optimal Vaccination Against Schistosoma mansoni Requires the Induction of Both B Cell- and IFN-γ-Dependent Effector Mechanisms. The Journal of Immunology 1999. [DOI: 10.4049/jimmunol.162.1.345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
Mice immunized with radiation-attenuated cercariae of Schistosoma mansoni display resistance to challenge infection, which increases with multiple boosting. Protection in animals receiving a single vaccination is thought to involve a primarily cell-mediated, IFN-γ-dependent mechanism, while humoral immunity has been shown to contribute to challenge rejection in multiply (three times) immunized mice. To better understand the respective contribution of the B lymphocyte- and IFN-γ-dependent effector arms in host resistance, we compared vaccine-induced immunity in B cell-deficient (μMT) and IFN-γ knockout (GKO) animals. Unexpectedly, after a single vaccination, B cell knockout (KO) mice displayed reduced protection against challenge infection, although they developed a normal IFN-γ-dominated cytokine response. This defect in resistance was equivalent to that displayed by GKO animals. Moreover, whereas two additional vaccinations significantly increased the level of immunity in wild-type mice, the protection in B cell KO animals remained unchanged. In contrast, multiple vaccination resulted in increased but, nevertheless, defective resistance in GKO mice. Since FcR γ KO mice, which lack functional FcγRI, FcγRIII, and FcεRI, show no defects in vaccine-induced resistance after immunization either one or three times, the B cell-dependent mechanism of protection involved does not appear to require FcR signaling. Together, these findings indicate that effective vaccination against schistosomes depends on the simultaneous induction of both humoral and cell-mediated immunity, a conclusion that may explain the limited success of most subunit vaccine protocols designed to preferentially induce either B cell- or IFN-γ-dependent protective mechanisms.
Collapse
Affiliation(s)
- Dragana Jankovic
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Thomas A. Wynn
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Marika C. Kullberg
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Sara Hieny
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Patricia Caspar
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Stephanie James
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Allen W. Cheever
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
- †Biomedical Research Institute, Rockville, MD 20852
| | - Alan Sher
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| |
Collapse
|
5
|
Hoffmann KF, Caspar P, Cheever AW, Wynn TA. IFN-γ, IL-12, and TNF-α Are Required to Maintain Reduced Liver Pathology in Mice Vaccinated with Schistosoma mansoni Eggs and IL-12. The Journal of Immunology 1998. [DOI: 10.4049/jimmunol.161.8.4201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
The development of hepatic fibrosis and portal hypertension is the principal cause of morbidity and mortality in schistosomiasis mansoni. Nevertheless, relatively little is known about the mechanisms that lead to excessive collagen deposition during infection with Schistosoma mansoni. In the murine model, infection leads to significant egg-induced granuloma formation, tissue eosinophilia, and hepatic fibrosis. The pathology has been linked to dominant type 2 cytokine expression, and our recent studies showed that sensitizing animals to egg Ags in combination with IL-12, before infection, led to a highly significant reduction in egg-induced immunopathology. In this study, we demonstrate that in contrast with egg/IL-12-sensitized animals that showed marked decreases in pathology, mice similarly sensitized but depleted of IFN-γ, IL-12, or TNF-α at the time of egg laying developed granulomas that were similar to the non-IL-12-treated control group. Although all three anti-cytokine-treated groups exhibited a dominant type 1 response in lymph node cells restimulated ex vivo, the expression of type 2 cytokine mRNA was markedly restored at the site of granuloma formation, which suggests that all three cytokines are required to maintain the suppressed type 2 pattern. Moreover, egg/IL-12-sensitized mice depleted of IFN-γ or IL-12 displayed a partial reduction in IFN-γ production, suggesting that multiple type 1 cytokines were required to maintain polarized type 1 responses to chronic type 2-inducing stimuli. Together, these data reveal key roles for IFN-γ, IL-12, and TNF-α in the protective effects mediated by this IL-12-based vaccine to prevent pathology.
Collapse
Affiliation(s)
- Karl F. Hoffmann
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | - Pat Caspar
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| | | | - Thomas A. Wynn
- *Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892; and
| |
Collapse
|