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Weston K, Fulton JE, Owen J. Antigen specificity affects analysis of natural antibodies. Front Immunol 2024; 15:1448320. [PMID: 39170611 PMCID: PMC11335478 DOI: 10.3389/fimmu.2024.1448320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 07/22/2024] [Indexed: 08/23/2024] Open
Abstract
Natural antibodies are used to compare immune systems across taxa, to study wildlife disease ecology, and as selection markers in livestock breeding. These immunoglobulins are present prior to immune stimulation. They are described as having low antigen specificity or polyreactive binding and are measured by binding to self-antigens or novel exogenous proteins. Most studies use only one or two antigens to measure natural antibodies and ignore potential effects of antigen specificity in analyses. It remains unclear how different antigen-specific natural antibodies are related or how diversity among natural antibodies may affect analyses of these immunoglobulins. Using genetically distinct lines of chickens as a model system, we tested the hypotheses that (1) antigen-specific natural antibodies are independent of each other and (2) antigen specificity affects the comparison of natural antibodies among animals. We used blood cell agglutination and enzyme-linked immunosorbent assays to measure levels of natural antibodies binding to four antigens: (i) rabbit erythrocytes, (ii) keyhole limpet hemocyanin, (iii) phytohemagglutinin, or (iv) ovalbumin. We observed that levels of antigen specific natural antibodies were not correlated. There were significant differences in levels of natural antibodies among lines of chickens, indicating genetic variation for natural antibody production. However, line distinctions were not consistent among antigen specific natural antibodies. These data show that natural antibodies are a pool of relatively distinct immunoglobulins, and that antigen specificity may affect interpretation of natural antibody function and comparative immunology.
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Affiliation(s)
- Kendra Weston
- Department of Entomology, Washington State University, Pullman, WA, United States
| | | | - Jeb Owen
- Department of Entomology, Washington State University, Pullman, WA, United States
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2
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Mencarelli A, Bist P, Choi HW, Khameneh HJ, Mortellaro A, Abraham SN. Anaphylactic degranulation by mast cells requires the mobilization of inflammasome components. Nat Immunol 2024; 25:693-702. [PMID: 38486019 DOI: 10.1038/s41590-024-01788-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/14/2024] [Indexed: 04/11/2024]
Abstract
The inflammasome components NLRP3 and ASC are cytosolic proteins, which upon sensing endotoxins or danger cues, form multimeric complexes to process interleukin (IL)-1β for secretion. Here we found that antigen (Ag)-triggered degranulation of IgE-sensitized mast cells (MCs) was mediated by NLRP3 and ASC. IgE-Ag stimulated NEK7 and Pyk2 kinases in MCs to induce the deposition of NLRP3 and ASC on granules and form a distinct protein complex (granulosome) that chaperoned the granules to the cell surface. MCs deficient in NLRP3 or ASC did not form granulosomes, degranulated poorly in vitro and did not evoke systemic anaphylaxis in mice. IgE-Ag-triggered anaphylaxis was prevented by an NLRP3 inhibitor. In endotoxin-primed MCs, pro-IL-1β was rapidly packaged into granules after IgE-Ag stimulation and processed within granule remnants by proteases after degranulation, causing lethal anaphylaxis in mice. During IgE-Ag-mediated degranulation of endotoxin-primed MCs, granulosomes promoted degranulation, combined with exteriorization and processing of IL-1β, resulting in severe inflammation.
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Affiliation(s)
- Andrea Mencarelli
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore
| | - Hae Woong Choi
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Hanif Javanmard Khameneh
- Singapore Immunology Network (SIgN), Agency for Science and Research (A*Star), Singapore, Singapore
- Università della Svizzera italiana (USI), Faculty of Biomedical Sciences, Institute for Research in Biomedicine (IRB), Bellinzona, Switzerland
| | - Alessandra Mortellaro
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Soman N Abraham
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore.
- Department of Pathology, Duke University Medical Center, Durham, NC, USA.
- Department of Immunology, Duke University Medical Center, Durham, NC, USA.
- Department of Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC, USA.
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Stanbery AG, Shuchi Smita, Jakob von Moltke, Tait Wojno ED, Ziegler SF. TSLP, IL-33, and IL-25: Not just for allergy and helminth infection. J Allergy Clin Immunol 2022; 150:1302-1313. [PMID: 35863509 PMCID: PMC9742339 DOI: 10.1016/j.jaci.2022.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/16/2022] [Accepted: 07/08/2022] [Indexed: 12/14/2022]
Abstract
The release of cytokines from epithelial and stromal cells is critical for the initiation and maintenance of tissue immunity. Three such cytokines, thymic stromal lymphopoietin, IL-33, and IL-25, are important regulators of type 2 immune responses triggered by parasitic worms and allergens. In particular, these cytokines activate group 2 innate lymphoid cells, TH2 cells, and myeloid cells, which drive hallmarks of type 2 immunity. However, emerging data indicate that these tissue-associated cytokines are not only involved in canonical type 2 responses but are also important in the context of viral infections, cancer, and even homeostasis. Here, we provide a brief review of the roles of thymic stromal lymphopoietin, IL-33, and IL-25 in diverse immune contexts, while highlighting their relative contributions in tissue-specific responses. We also emphasize a biologically motivated framework for thinking about the integration of multiple immune signals, including the 3 featured in this review.
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Affiliation(s)
| | - Shuchi Smita
- Department of Immunology, University of Washington, Seattle, Wash
| | - Jakob von Moltke
- Department of Immunology, University of Washington, Seattle, Wash
| | | | - Steven F Ziegler
- Department of Immunology, University of Washington, Seattle, Wash; Benaroya Research Institute, Seattle, Wash.
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Hu YH, Wang XY, Zhang XW, Chen J, Li F. Investigation of the mechanisms and experimental verification of Shao yao gan cao decoction against Sphincter of Oddi Dysfunction via systems pharmacology. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2022; 19:13374-13398. [PMID: 36654051 DOI: 10.3934/mbe.2022626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This study explored the chemical and pharmacological mechanisms of Shao Yao Gan Cao decoction (SYGC) in the treatment of Sphincter of Oddi Dysfunction (SOD) through ultra-high-performance liquid chromatography coupled with Quadrupole Exactive-Orbitrap high-resolution mass spectrometry (UHPLC-Q Exactive-Orbitrap HR-MS), network pharmacology, transcriptomics, molecular docking and in vivo experiments. First, we identified that SYGC improves SOD in guinea pigs by increased c-kit expression and decreased inflammation infiltration and ring muscle disorders. Then, a total of 649 SOD differential genes were found through RNA sequencing and mainly enriched in complement and coagulation cascades, the B cell receptor signaling pathway and the NF-kappa B signaling pathway. By combining UHPLC-Q-Orbitrap-HRMS with a network pharmacology study, 111 chemicals and a total of 52 common targets were obtained from SYGC in the treatment of SOD, which is also involved in muscle contraction, the B cell receptor signaling pathway and the complement system. Next, 20 intersecting genes were obtained among the PPI network, MCODE and ClusterOne analysis. Then, the molecular docking results indicated that four active compounds (glycycoumarin, licoflavonol, echinatin and homobutein) and three targets (AURKB, KIF11 and PLG) exerted good binding interactions, which are also related to the B cell receptor signaling pathway and the complement system. Finally, animal experiments were conducted to confirm the SYGC therapy effects on SOD and verify the 22 hub genes using RT-qPCR. This study demonstrates that SYGC confers therapeutic effects against an experimental model of SOD via regulating immune response and inflammation, which provides a basis for future research and clinical applications.
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Affiliation(s)
- Yong-Hong Hu
- Institute of Digestive Disease of Integrated Traditional Chinese and Western Medicine, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xue-Ying Wang
- Department of Preventive Treatment, Shuguang Hospital affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xi-Wen Zhang
- Department of Pancreaticobiliary Surgery, Shuguang Hospital affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jian Chen
- Department of Vascular Disease, Shanghai TCM-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200082, China
- Institute of Vascular Anomalies, Shanghai Academy of Traditional Chinese Medicine, Shanghai 200082, China
| | - Fu Li
- Department of Pancreaticobiliary Surgery, Shuguang Hospital affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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CD40-CD154: A perspective from type 2 immunity. Semin Immunol 2021; 53:101528. [PMID: 34810089 DOI: 10.1016/j.smim.2021.101528] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 12/19/2022]
Abstract
The interaction between CD40 and CD154 (CD40 ligand) is central in immunology, participating in CD4+ T cell priming by dendritic cells (DC), CD4+ T cell help to B cells and classical macrophage activation by CD4+ T cells. However, its role in the Th2 side of immunology including helminth infection remains incompletely understood. Contrary to viral and bacterial stimuli, helminth products usually do not cause CD40 up-regulation in DC, and exogenous CD40 ligation drives Th2-biased systems towards Th1. On the other hand, CD40 and CD154 are necessary for induction of most Th2 responses. We attempt to reconcile these observations, mainly by proposing that (i) CD40 up-regulation in DC in Th2 systems is mostly induced by alarmins, (ii) the Th2 to Th1 shift induced by exogenous CD40 ligation is related to the capacity of such ligation to enhance IL-12 production by myeloid cells, and (iii) signals elicited by endogenous CD154 available in Th2 contexts and by exogenous CD40 ligation are probably different. We stress that CD40-CD154 is important beyond cognate cellular interactions. In such a context, we argue that the proliferation response of B-cells to IL-4 plus CD154 reflects a Th2-specific mechanism for polyclonal B-cell amplification and IgE production at infection sites. Finally, we argue that CD154 is a general immune activation signal across immune polarization including Th2, and propose that competition for CD154 at tissue sites may provide negative feedback on response induction at each site.
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Ando T, Kitaura J. Tuning IgE: IgE-Associating Molecules and Their Effects on IgE-Dependent Mast Cell Reactions. Cells 2021; 10:cells10071697. [PMID: 34359869 PMCID: PMC8305778 DOI: 10.3390/cells10071697] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
The recent emergence of anti-immunoglobulin E (IgE) drugs and their candidates for humans has endorsed the significance of IgE-dependent pathways in allergic disorders. IgE is distributed locally in the tissues or systemically to confer a sensory mechanism in a domain of adaptive immunity to the otherwise innate type of effector cells, namely, mast cells and basophils. Bound on the high-affinity IgE receptor FcεRI, IgE enables fast memory responses against revisiting threats of venoms, parasites, and bacteria. However, the dysregulation of IgE-dependent reactions leads to potentially life-threatening allergic diseases, such as asthma and anaphylaxis. Therefore, reactivity of the IgE sensor is fine-tuned by various IgE-associating molecules. In this review, we discuss the mechanistic basis for how IgE-dependent mast cell activation is regulated by the IgE-associating molecules, including the newly developed therapeutic candidates.
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Affiliation(s)
- Tomoaki Ando
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Correspondence: (T.A.); (J.K.); Tel.: +81-3-5802-1591 (T.A. & J.K.)
| | - Jiro Kitaura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
- Correspondence: (T.A.); (J.K.); Tel.: +81-3-5802-1591 (T.A. & J.K.)
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Zaini A, Good-Jacobson KL, Zaph C. Context-dependent roles of B cells during intestinal helminth infection. PLoS Negl Trop Dis 2021; 15:e0009340. [PMID: 33983946 PMCID: PMC8118336 DOI: 10.1371/journal.pntd.0009340] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The current approaches to reduce the burden of chronic helminth infections in endemic areas are adequate sanitation and periodic administration of deworming drugs. Yet, resistance against some deworming drugs and reinfection can still rapidly occur even after treatment. A vaccine against helminths would be an effective solution at preventing reinfection. However, vaccines against helminth parasites have yet to be successfully developed. While T helper cells and innate lymphoid cells have been established as important components of the protective type 2 response, the roles of B cells and antibodies remain the most controversial. Here, we review the roles of B cells during intestinal helminth infection. We discuss the potential factors that contribute to the context-specific roles for B cells in protection against diverse intestinal helminth parasite species, using evidence from well-defined murine model systems. Understanding the precise roles of B cells during resistance and susceptibility to helminth infection may offer a new perspective of type 2 protective immunity.
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Affiliation(s)
- Aidil Zaini
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Kim L. Good-Jacobson
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Colby Zaph
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
- * E-mail:
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Kiwanuka KN, Motunrayo Kolawole E, Mcleod JJA, Baker B, Paez PA, Zellner MP, Haque TT, Paranjape A, Jackson K, Kee SA, Dailey J, Martin RK, Ryan JJ. Stat5B is required for IgE-Mediated mast cell function in vitro and in vivo. Cell Immunol 2021; 364:104344. [PMID: 33780747 DOI: 10.1016/j.cellimm.2021.104344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 01/02/2023]
Abstract
Mast cells are found primarily at interfaces with the external environment, where they provide protection from pathogens but also elicit allergic inflammation. Mast cell activation by antigen-induced aggregation of IgE bound to the high affinity receptor, FcεRI, is a critical factor leading to inflammation and bronchoconstriction. We previously found that Stat5 is activated by FcεRI and that Stat5B suppression decreased IgE-induced cytokine production in vitro, but in vivo responses have not been assessed. We now show that Stat5B-deficient (KO) mice have reduced responses to IgE-mediated anaphylaxis, despite normal mast cell tissue distribution. Similarly, Stat5B KO mast cells have diminished IgE-induced degranulation and cytokine secretion in vitro. These mice have elevated IgE production that is not correlated with an intrinsic B cell defect. The current work demonstrates that the Stat5B isoform is required for normal mast cell function and suggests it limits IgE production in vivo.
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Affiliation(s)
- Kasalina N Kiwanuka
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - E Motunrayo Kolawole
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, United States
| | | | - Bianca Baker
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, United States
| | - Patrick A Paez
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, United States
| | - Matthew P Zellner
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - Tamara T Haque
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - Anuya Paranjape
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - Kaitlyn Jackson
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - Sydney A Kee
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, United States
| | - Jordan Dailey
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - Rebecca K Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298, United States
| | - John J Ryan
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, United States.
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Tang T, Cheng X, Truong B, Sun L, Yang X, Wang H. Molecular basis and therapeutic implications of CD40/CD40L immune checkpoint. Pharmacol Ther 2020; 219:107709. [PMID: 33091428 DOI: 10.1016/j.pharmthera.2020.107709] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/15/2020] [Indexed: 12/22/2022]
Abstract
The CD40 receptor and its ligand CD40L is one of the most critical molecular pairs of the stimulatory immune checkpoints. Both CD40 and CD40L have a membrane form and a soluble form generated by proteolytic cleavage or alternative splicing. CD40 and CD40L are widely expressed in various types of cells, among which B cells and myeloid cells constitutively express high levels of CD40, and T cells and platelets express high levels of CD40L upon activation. CD40L self-assembles into functional trimers which induce CD40 trimerization and downstream signaling. The canonical CD40/CD40L signaling is mediated by recruitment of TRAFs and NF-κB activation, which is supplemented by signal pathways such as PI3K/AKT, MAPKs and JAK3/STATs. CD40/CD40L immune checkpoint leads to activation of both innate and adaptive immune cells via two-way signaling. CD40/CD40L interaction also participates in regulating thrombosis, tissue inflammation, hematopoiesis and tumor cell fate. Because of its essential role in immune activation, CD40/CD40L interaction has been regarded as an attractive immunotherapy target. In recent years, significant advance has been made in CD40/CD40L-targeted therapy. Various types of agents, including agonistic/antagonistic monoclonal antibodies, cellular vaccines, adenoviral vectors and protein antagonist, have been developed and evaluated in early-stage clinical trials for treating malignancies, autoimmune diseases and allograft rejection. In general, these agents have demonstrated favorable safety and some of them show promising clinical efficacy. The mechanisms of benefits include immune cell activation and tumor cell lysis/apoptosis in malignancies, or immune cell inactivation in autoimmune diseases and allograft rejection. This review provides a comprehensive overview of the structure, processing, cellular expression pattern, signaling and effector function of CD40/CD40L checkpoint molecules. In addition, we summarize the progress, targeted diseases and outcomes of current ongoing and completed clinical trials of CD40/CD40L-targeted therapy.
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Affiliation(s)
- TingTing Tang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Xiang Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Billy Truong
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Department of Microbiology and Immunology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - LiZhe Sun
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Department of Cardiovascular Medicine, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - XiaoFeng Yang
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Department of Microbiology and Immunology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Hong Wang
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA; Department of Microbiology and Immunology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA.
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Pellefigues C. IgE Autoreactivity in Atopic Dermatitis: Paving the Road for Autoimmune Diseases? Antibodies (Basel) 2020; 9:E47. [PMID: 32911788 PMCID: PMC7551081 DOI: 10.3390/antib9030047] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 12/20/2022] Open
Abstract
Atopic dermatitis (AD) is a common skin disease affecting 20% of the population beginning usually before one year of age. It is associated with the emergence of allergen-specific IgE, but also with autoreactive IgE, whose function remain elusive. This review discusses current knowledge relevant to the mechanisms, which leads to the secretion of autoreactive IgE and to the potential function of these antibodies in AD. Multiple autoantigens have been described to elicit an IgE-dependent response in this context. This IgE autoimmunity starts in infancy and is associated with disease severity. Furthermore, the overall prevalence of autoreactive IgE to multiple auto-antigens is high in AD patients. IgE-antigen complexes can promote a facilitated antigen presentation, a skewing of the adaptive response toward type 2 immunity, and a chronic skin barrier dysfunction and inflammation in patients or AD models. In AD, skin barrier defects and the atopic immune environment facilitate allergen sensitization and the development of other IgE-mediated allergic diseases in a process called the atopic march. AD is also associated epidemiologically with several autoimmune diseases showing autoreactive IgE secretion. Thus, a potential outcome of IgE autoreactivity in AD could be the development of further autoimmune diseases.
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Affiliation(s)
- Christophe Pellefigues
- INSERM UMRS1149-CNRS ERL8252, Team «Basophils and Mast cells in Immunopathology», Centre de recherche sur l'inflammation (CRI), Inflamex, DHU Fire, Université de Paris, 75018 Paris, France
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11
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Chudakov DB, Ryasantsev DY, Tsaregorotseva DS, Kotsareva OD, Fattakhova GV, Svirshchevskaya EV. Tertiary lymphoid structure related B-cell IgE isotype switching and secondary lymphoid organ linked IgE production in mouse allergy model. BMC Immunol 2020; 21:45. [PMID: 32767965 PMCID: PMC7412793 DOI: 10.1186/s12865-020-00376-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/30/2020] [Indexed: 12/14/2022] Open
Abstract
Background Numerous data obtained by different research laboratories indicate that specific IgE production is triggered independently of specific IgG or IgA ones and so it is not linked to fully matured germinal centers formation in the secondary lymphoid organs. The aim of this study was to clarify whether specific IgE production is triggered by low antigen doses administrated in tertiary tissues enriched by lymphoid structures. Methods Ovalbumin (OVA) in different doses (100 ng to 10 μg) was administrated three times a week for 4–5 weeks intraperitoneally (i.p.) or subcutaneously (s.c.) to female BALB/c mice in the wither region which is enriched in fat-associated lymphoid clusters or in the foot pad region not containing them. Results OVA-specific IgE was predominantly induced by low but not high antigen doses and only after immunization into the withers. IgE isotype switching was triggered exclusively in the withers adipose tissue but not in the regional lymph nodes while mature IgE expressing cells were observed both in the withers and lymph nodes. Anti-proliferative genotoxic stress inducing drugs shifted the balance from IgG1 towards IgE production. Conclusions Tertiary lymphoid structures possess unique environment where B-cell antibody isotype switching to IgE predominantly occurs. This phenomenon is partially explained by hampered proliferation of B-cells in these structures.
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Affiliation(s)
- Dmitrii Borisovich Chudakov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of RAS, 117997, 16/10 Miklukho-Maklaya Street, Moscow, Russia.
| | - Dmitrii Yuryevich Ryasantsev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of RAS, 117997, 16/10 Miklukho-Maklaya Street, Moscow, Russia
| | | | - Olga Dmitrievna Kotsareva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of RAS, 117997, 16/10 Miklukho-Maklaya Street, Moscow, Russia
| | - Gulnar Vaisovna Fattakhova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of RAS, 117997, 16/10 Miklukho-Maklaya Street, Moscow, Russia
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Toledo MDS, Cronemberger-Andrade A, Barbosa FMC, Reis NFDC, Dupin TV, Soares RP, Torrecilhas AC, Xander P. Effects of extracellular vesicles released by peritoneal B-1 cells on experimental Leishmania (Leishmania) amazonensis infection. J Leukoc Biol 2020; 108:1803-1814. [PMID: 32356366 DOI: 10.1002/jlb.3ma0220-464rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 02/25/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023] Open
Abstract
B-1 cells are a B-lymphocyte subtype whose roles in immunity are not completely defined. These cells can produce cytokines (mainly IL-10) and natural and specific antibodies. Currently, extracellular vesicles (EVs) released by immune cells have emerged as new important entities in cell-cell communication. Immune cells release EVs that can activate and/or modulate other immune cells. Here, we characterized the EVs released by peritoneal B-1 cells infected or not with Leishmania (Leishmania) amazonensis. This Leishmania species causes cutaneous leishmaniasis and can infect macrophages and B-1 cells. Our results showed that peritoneal B-1 cells spontaneously release EVs, but the parasite stimulated an increase in EVs production by peritoneal B-1 cells. The treatment of BALB/c and C57BL/6 bone marrow-derived macrophages (BMDM) with EVs from infected peritoneal B-1 cells led to differential expression of iNOS, IL-6, IL-10, and TNF-α. Additionally, BALB/c mice previous treated with EVs released by peritoneal B-1 cells showed a significant lower lesion size and parasite burden. Thus, this study demonstrated that peritoneal B-1 cells could release EVs that can alter the functions of macrophages in vitro and in vivo these EVs altered the course of L. amazonensis infection. These findings represent the first evidence that EVs from peritoneal B-1 cells can act as a new mechanism of cellular communication between macrophages and B-1 cells, contributing to immunity against experimental leishmaniasis.
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Affiliation(s)
- Maytê Dos Santos Toledo
- Department of Pharmaceutical Sciences, Federal University of São Paulo campus Diadema, Diadema, São Paulo, Brazil
| | | | | | | | - Talita Vieira Dupin
- Department of Pharmaceutical Sciences, Federal University of São Paulo campus Diadema, Diadema, São Paulo, Brazil
| | - Rodrigo Pedro Soares
- Laboratory of Cellular and Molecular Parasitology, René Rachou Institute, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Claudia Torrecilhas
- Department of Pharmaceutical Sciences, Federal University of São Paulo campus Diadema, Diadema, São Paulo, Brazil.,Department of Medicine/Infectious Diseases, Federal University of São Paulo, São Paulo, Brazil
| | - Patricia Xander
- Department of Pharmaceutical Sciences, Federal University of São Paulo campus Diadema, Diadema, São Paulo, Brazil
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Luker AJ, Graham LJ, Smith TM, Camarena C, Zellner MP, Gilmer JJS, Damle SR, Conrad DH, Bear HD, Martin RK. The DNA methyltransferase inhibitor, guadecitabine, targets tumor-induced myelopoiesis and recovers T cell activity to slow tumor growth in combination with adoptive immunotherapy in a mouse model of breast cancer. BMC Immunol 2020; 21:8. [PMID: 32106810 PMCID: PMC7045411 DOI: 10.1186/s12865-020-0337-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 02/14/2020] [Indexed: 12/14/2022] Open
Abstract
Background Myeloid derived suppressor cells (MDSCs) present a significant obstacle to cancer immunotherapy because they dampen anti-tumor cytotoxic T cell responses. Previous groups, including our own, have reported on the myelo-depletive effects of certain chemotherapy agents. We have shown previously that decitabine increased tumor cell Class I and tumor antigen expression, increased ability of tumor cells to stimulate T lymphocytes, depleted tumor-induced MDSC in vivo and augmented immunotherapy of a murine mammary carcinoma. Results In this study, we expand upon this observation by testing a next-generation DNA methyltransferase inhibitor (DNMTi), guadecitabine, which has increased stability in the circulation. Using the 4 T1 murine mammary carcinoma model, in BALB/cJ female mice, we found that guadecitabine significantly reduces tumor burden in a T cell-dependent manner by preventing excessive myeloid proliferation and systemic accumulation of MDSC. The remaining MDSC were shifted to an antigen-presenting phenotype. Building upon our previous publication, we show that guadecitabine enhances the therapeutic effect of adoptively transferred antigen-experienced lymphocytes to diminish tumor growth and improve overall survival. We also show guadecitabine’s versatility with similar tumor reduction and augmentation of immunotherapy in the C57BL/6 J E0771 murine breast cancer model. Conclusions Guadecitabine depleted and altered MDSC, inhibited growth of two different murine mammary carcinomas in vivo, and augmented immunotherapeutic efficacy. Based on these findings, we believe the immune-modulatory effects of guadecitabine can help rescue anti-tumor immune response and contribute to the overall effectiveness of current cancer immunotherapies.
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Affiliation(s)
- Andrea J Luker
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA.,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Laura J Graham
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA.,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Timothy M Smith
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA.,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Carmen Camarena
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Matt P Zellner
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Jamie-Jean S Gilmer
- Department of Biology, College of Humanities and Sciences, VCU, Richmond, VA, USA
| | - Sheela R Damle
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA.,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Daniel H Conrad
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA.,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA
| | - Harry D Bear
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA.,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA.,Division of Surgical Oncology, Department of Surgery, VCU, Richmond, VA, USA
| | - Rebecca K Martin
- Department of Microbiology and Immunology, School of Medicine, VCU, Box 980678, Richmond, VA, 23298, USA. .,Massey Cancer Center, VCU, Box 980678, Richmond, VA, 23298, USA.
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14
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Wang Y, Liu J, Burrows PD, Wang JY. B Cell Development and Maturation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1254:1-22. [PMID: 32323265 DOI: 10.1007/978-981-15-3532-1_1] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Since the identification of B cells in 1965 (Cooper et al. 1965), three has been tremendous progress in our understanding of B cell development, maturation and function. A number of B cell subpopulations, including B-1, B-2 and regulatory B cells, have been identified. B-1 cells mainly originate from the fetal liver and contain B-1a and B-1b subsets. B-2 cells are derived from the bone marrow (BM) and can be further classified into follicular B (FOB) and marginal zone B (MZB) cells. Regulatory B cells (Bregs) function to suppress immune responses, primarily by production of the anti-inflammatory cytokine IL-10. B cell tolerance is established at several checkpoints, during B cell development in the BM (central tolerance) as well as during B cell maturation and activation in the periphery (peripheral tolerance). This chapter will focus on the regulation of important processes during the development and maturation of B-1 and B-2 cells.
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Affiliation(s)
- Ying Wang
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jun Liu
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Peter D Burrows
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ji-Yang Wang
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China.
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15
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Abdul Qayum A, Koh B, Martin RK, Kenworthy BT, Kharwadkar R, Fu Y, Wu W, Conrad DH, Kaplan MH. The Il9 CNS-25 Regulatory Element Controls Mast Cell and Basophil IL-9 Production. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2019; 203:1111-1121. [PMID: 31350354 PMCID: PMC6702076 DOI: 10.4049/jimmunol.1900272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/01/2019] [Indexed: 12/20/2022]
Abstract
IL-9 is an important mediator of allergic disease that is critical for mast cell-driven diseases. IL-9 is produced by many cell types, including T cells, basophils, and mast cells. Yet, how IL-9 is regulated in mast cells or basophils is not well characterized. In this report, we tested the effects of deficiency of a mouse Il9 gene regulatory element (Il9 CNS-25) in these cells in vivo and in vitro. In mast cells stimulated with IL-3 and IL-33, the Il9 CNS-25 enhancer is a potent regulator of mast cell Il9 gene transcription and epigenetic modification at the Il9 locus. Our data show preferential binding of STAT5 and GATA1 to CNS-25 over the Il9 promoter in mast cells and that T cells and mast cells have differing requirements for the induction of IL-9 production. Il9 CNS-25 is required for IL-9 production from T cells, basophils, and mast cells in a food allergy model, and deficiency in IL-9 expression results in decreased mast cell expansion. In a Nippostrongylus brasiliensis infection model, we observed a similar decrease in mast cell accumulation. Although decreased mast cells correlated with higher parasite egg burden and delayed clearance in vivo, T cell deficiency in IL-9 also likely contributes to the phenotype. Thus, our data demonstrate IL-9 production in mast cells and basophils in vivo requires Il9 CNS-25, and that Il9 CNS-25-dependent IL-9 production is required for mast cell expansion during allergic intestinal inflammation.
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Affiliation(s)
- Amina Abdul Qayum
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, IN 46202
- Department of Microbiology and Immunology, School of Medicine, Indiana University, Indianapolis, IN 46202
| | - Byunghee Koh
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, IN 46202
- Department of Microbiology and Immunology, School of Medicine, Indiana University, Indianapolis, IN 46202
| | - Rebecca K Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298
| | - Blake T Kenworthy
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, IN 46202
| | - Rakshin Kharwadkar
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, IN 46202
- Department of Biochemistry and Molecular Biology, School of Medicine, Indiana University, Indianapolis, IN 46202; and
| | - Yongyao Fu
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, IN 46202
- Department of Microbiology and Immunology, School of Medicine, Indiana University, Indianapolis, IN 46202
| | - Wenting Wu
- Department of Medical and Molecular Genetics, School of Medicine, Indiana University, Indianapolis, IN 46202
| | - Daniel H Conrad
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA 23298
| | - Mark H Kaplan
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, School of Medicine, Indiana University, Indianapolis, IN 46202;
- Department of Microbiology and Immunology, School of Medicine, Indiana University, Indianapolis, IN 46202
- Department of Biochemistry and Molecular Biology, School of Medicine, Indiana University, Indianapolis, IN 46202; and
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16
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Abstract
Immunoglobulin E (IgE), though constitutively present at low levels, is most commonly studied in atopic disease where it plays a vital role in mast cell degranulation and in initiating a T helper 2 (Th2) response. With the advent of better detection assays, however, researchers are discovering the importance of IgE in actively contributing to many disease states and pathologies. This review will discuss the latest findings in IgE beyond its role in allergies and recently discovered roles for IgE in its cell-bound form on FcεRI-expressing effector cells like monocytes and dendritic cells. In terms of parasites, we will discuss helminth-induced IgE that appears to protect the worms from immune recognition and a tick-borne illness that elicits an IgE response against red meat. Next, we describe recent findings of how auto-reactive IgE can contribute to the progression of lupus and induce organ damage. Finally, we summarize the emerging roles of IgE in tumor surveillance and antibody-dependent cytotoxicity. We additionally discuss recent or ongoing clinical trials that either target harmful IgE or use the unique characteristics of the isotype.
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Affiliation(s)
- Andrea J Luker
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA
| | - Joseph C Lownik
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA.,Center for Clinical and Translational Research, Virginia Commonwealth University, Richmond, VA, USA
| | - Daniel H Conrad
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA
| | - Rebecca K Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA
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17
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Novaes E Brito RR, Dos Santos Toledo M, Labussiere GM, Dupin TV, de Campos Reis NF, Perez EC, Xander P. B-1 cell response in immunity against parasites. Parasitol Res 2019; 118:1343-1352. [PMID: 30941496 DOI: 10.1007/s00436-019-06211-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 01/10/2019] [Indexed: 01/09/2023]
Abstract
The peritoneal cavity has a microenvironment capable of promoting proliferation, differentiation, and activation of the resident cells and recruitment of blood cells through the capillary network involved in the peritoneum. Among the cells found in the peritoneal cavity, B-1 cells are a particular cell type that contains features that are not very well defined. These cells differ from conventional B lymphocytes (B-2) by phenotypic, functional, and molecular characteristics. B-1 cells can produce natural antibodies, migrate to the inflammatory focus, and have the ability to phagocytose pathogens. However, the role of B-1 cells in immunity against parasites is still not completely understood. Several experimental models have demonstrated that B-1 cells can affect the susceptibility or resistance to parasite infections depending on the model and species. Here, we review the literature to provide information on the peculiarities of B-1 lymphocytes as well as their interaction with parasites.
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Affiliation(s)
| | - Mayte Dos Santos Toledo
- Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo Campus Diadema, Diadema, Brazil
| | | | - Talita Vieira Dupin
- Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo Campus Diadema, Diadema, Brazil
| | | | | | - Patricia Xander
- Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo Campus Diadema, Diadema, Brazil. .,Laboratório de Imunologia Celular e Bioquímica de Fungos e Protozoários, Departamento de Ciências Farmacêuticas, Universidade Federal de São Paulo campus Diadema, Rua São Nicolau, 210, Unidade José Alencar, Prédio de Pesquisa, 4° andar, Diadema, São Paulo, Brazil.
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18
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Ryan NM, Oghumu S. Role of mast cells in the generation of a T-helper type 2 dominated anti-helminthic immune response. Biosci Rep 2019; 39:BSR20181771. [PMID: 30670631 PMCID: PMC6379226 DOI: 10.1042/bsr20181771] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/16/2019] [Accepted: 01/21/2019] [Indexed: 12/19/2022] Open
Abstract
Mast cells are long-lived, innate immune cells of the myeloid lineage which are found in peripheral tissues located throughout the body, and positioned at the interface between the host and the environment. Mast cells are found in high concentrations during helminth infection. Using Kitw-sh mast cell deficient mice, a recently published study in Bioscience Reports by Gonzalez et al. (Biosci. Rep., 2018) focused on the role of mast cells in the immune response to infection by the helminth Hymenolepis diminuta The authors showed that mast cells play a role in the modulation of Th2 immune response characterized by a unique IL-4, IL-5 and IL-13 cytokine profile, as well as subsequent robust worm expulsion during H. diminuta infection. Unlike WT mice which expelled H. diminuta at day 10, Kitw-sh deficient mice displayed delayed worm expulsion (day 14 post infection). Further, a possible role for mast cells in the basal expression of cytokines IL-25, IL-33 and thymic stromal lymphopoietin was described. Deletion of neutrophils in Kitw-sh deficient mice enhanced H. diminuta expulsion, which was accompanied by splenomegaly. However, interactions between mast cells and other innate and adaptive immune cells during helminth infections are yet to be fully clarified. We conclude that the elucidation of mechanisms underlying mast cell interactions with cells of the innate and adaptive immune system during infection by helminths can potentially uncover novel therapeutic applications against inflammatory, autoimmune and neoplastic diseases.
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Affiliation(s)
- Nathan M Ryan
- Department of Pathology, College of Medicine, Ohio State University Wexner Medical Center, Columbus, OH, U.S.A
| | - Steve Oghumu
- Department of Pathology, College of Medicine, Ohio State University Wexner Medical Center, Columbus, OH, U.S.A.
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19
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The Obligate Intracellular Bacterium Orientia tsutsugamushi Targets NLRC5 To Modulate the Major Histocompatibility Complex Class I Pathway. Infect Immun 2019; 87:IAI.00876-18. [PMID: 30559222 DOI: 10.1128/iai.00876-18] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 12/11/2018] [Indexed: 02/06/2023] Open
Abstract
Orientia tsutsugamushi is an obligate intracellular bacterium that infects mononuclear and endothelial cells to cause the emerging global health threat scrub typhus. The ability of O. tsutsugamushi to survive in monocytes facilitates bacterial dissemination to endothelial cells, which can subsequently lead to several potentially fatal sequelae. As a strict intracellular pathogen that lives in the cytoplasm of host cells, O. tsutsugamushi has evolved to counter adaptive immunity. How the pathogen does so and the outcome of this strategy in monocytes versus endothelial cells are poorly understood. This report demonstrates that O. tsutsugamushi reduces cellular levels of NOD-, LRR-, and CARD-containing 5 (NLRC5), a recently identified specific transactivator of major histocompatibility complex class I (MHC-I) component gene expression, to inhibit MHC-I biosynthesis. Importantly, the efficacy of this approach varies with the host cell type infected. In nonprofessional antigen-presenting HeLa and primary human aortic endothelial cells, the O. tsutsugamushi-mediated reduction of NLRC5 results in lowered MHC-I component transcription and, consequently, lower total and/or surface MHC-I levels throughout 72 h of infection. However, in infected THP-1 monocytes, which are professional antigen-presenting cells, the reductions in NLRC5 and MHC-I observed during the first 24 h reverse thereafter. O. tsutsugamushi is the first example of a microbe that targets NLRC5 to modulate the MHC-I pathway. The differential ability of O. tsutsugamushi to modulate this pathway in nonprofessional versus professional antigen-presenting cells could influence morbidity and mortality from scrub typhus.
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20
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Mast cell deficiency in mice results in biomass overgrowth and delayed expulsion of the rat tapeworm Hymenolepis diminuta. Biosci Rep 2018; 38:BSR20180687. [PMID: 30341242 PMCID: PMC6265620 DOI: 10.1042/bsr20180687] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/11/2018] [Accepted: 10/03/2018] [Indexed: 02/06/2023] Open
Abstract
Infection with helminth parasites evokes a complex cellular response in the host, where granulocytes (i.e. eosinophils, basophils and mast cells (MCs)) feature prominently. In addition to being used as markers of helminthic infections, MCs have been implicated in worm expulsion since animals defective in c-kit signaling, which results in diminished MC numbers, can have delayed worm expulsion. The role of MCs in the rejection of the rat tapeworm, Hymenolepsis diminuta, from the non-permissive mouse host is not known. MC-deficient mice display a delay in the expulsion of H. diminuta that is accompanied by a less intense splenic Th2 response, as determined by in vitro release of interleukin (IL)-4, IL-5 and IL-13 cytokines. Moreover, worms retrieved from MC-deficient mice were larger than those from wild-type (WT) mice. Assessment of gut-derived IL-25, IL-33, thymic stromal lymphopoietin revealed lower levels in uninfected MC-deficient mice compared with WT, suggesting a role for MCs in homeostatic control of these cytokines: differences in these gut cytokines between the mouse strains were not observed after infection with H. diminuta. Finally, mice infected with H. diminuta display less severe dinitrobenzene sulphonic acid (DNBS)-induced colitis, and this beneficial effect of the worm was unaltered in MC-deficient mice challenged with DNBS, as assessed by a macroscopic disease score. Thus, while MCs are not essential for rejection of H. diminuta from mice, their absence slows the kinetics of expulsion allowing the development of greater worm biomass prior to successful rejection of the parasitic burden.
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21
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Gomez-Samblas M, Bernal D, Bolado-Ortiz A, Vilchez S, Bolás-Fernández F, Espino AM, Trelis M, Osuna A. Intraperitoneal administration of the anti-IL-23 antibody prevents the establishment of intestinal nematodes in mice. Sci Rep 2018; 8:7787. [PMID: 29773890 PMCID: PMC5958071 DOI: 10.1038/s41598-018-26194-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/24/2018] [Indexed: 02/06/2023] Open
Abstract
Previous studies have established that an increased Th-9 response creates a hostile environment for nematode parasites. Given that IL-23, a cytokine required for maintenance of the IL-17-secreting phenotype, has inhibitory effects on IL-9 production, we hypothesized that reducing circulating IL-23 by treatment with anti-IL-23 antibodies would reduce the establishment and development of parasitic intestinal nematodes. In this study, we show that animals treated with anti-IL-23 monoclonal antibodies showed a drastic reduction in the number of mouse pinworms (Aspiculuris tetraptera) recovered from the intestine (p < 0.001) at 23 days post-infection compared to the untreated animals. The cytokine levels in Peyer's patches (PP) in treated and infected animals increase the expression of interleukins such as IL-25, IL-21, and IL-9, augmenting mucus production in the crypts, and boosting chemokines, such as OX40 and CCL20 in the mucosa. Our results suggest that the Th17/Th2 regulatory mechanism provoked by the administration of the anti-IL-23 antibody prevents the implantation of the intestinal nematode in mice. The diminished inflammatory IL-17 levels alter the Th9 environment perhaps as a consequence of IL-17 inhibiting IL-9 expression. These Th9 conditions may explain the successful treatment against Inflammatory Bowel Disease (IBD) both with antibodies against IL-23 or through parasitization with nematodes.
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Affiliation(s)
- M Gomez-Samblas
- Instituto de Biotecnología, Grupo de Bioquímica y Parasitología Molecular, Departamento de Parasitología, Universidad de Granada, Campus Universitario Fuentenueva, 18071, Granada, Spain
| | - D Bernal
- Departament de Bioquímica i Biologia Molecular, Universitat de València, C/Dr. Moliner, 50, 46100, Burjassot, Valencia, Spain
| | - A Bolado-Ortiz
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Àrea de Parasitologia, Universitat de València, Av. V.A. Estellés, s/n, 46100, Burjassot, Valencia, Spain
- Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute-La Fe, Universitat de Valencia, Av. Fdo. Abril Martorell, 106, 46026, Valencia, Spain
| | - S Vilchez
- Instituto de Biotecnología, Grupo de Bioquímica y Parasitología Molecular, Departamento de Bioquímica, Universidad de Granada, Campus Universitario Fuentenueva, 18071, Granada, Spain
| | - F Bolás-Fernández
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense, Plaza de Ramón y Cajal s/n. Ciudad Universitaria, 28040, Madrid, Spain
| | - A M Espino
- Laboratory of Immunology and Molecular Parasitology, Department of Microbiology, University of Puerto Rico, School of Medicine, PO BOX 365067, San Juan, 00936-5067, Puerto Rico
| | - M Trelis
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Àrea de Parasitologia, Universitat de València, Av. V.A. Estellés, s/n, 46100, Burjassot, Valencia, Spain
- Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute-La Fe, Universitat de Valencia, Av. Fdo. Abril Martorell, 106, 46026, Valencia, Spain
| | - A Osuna
- Instituto de Biotecnología, Grupo de Bioquímica y Parasitología Molecular, Departamento de Parasitología, Universidad de Granada, Campus Universitario Fuentenueva, 18071, Granada, Spain.
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