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Lu Q, Hitch TCA, Zhou JY, Dwidar M, Sangwan N, Lawrence D, Nolan LS, Espenschied ST, Newhall KP, Han Y, Karell PE, Salazar V, Baldridge MT, Clavel T, Stappenbeck TS. A host-adapted auxotrophic gut symbiont induces mucosal immunodeficiency. Science 2024; 385:eadk2536. [PMID: 39325906 DOI: 10.1126/science.adk2536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 05/12/2024] [Accepted: 07/26/2024] [Indexed: 09/28/2024]
Abstract
Harnessing the microbiome to benefit human health requires an initial step in determining the identity and function of causative microorganisms that affect specific host physiological functions. We show a functional screen of the bacterial microbiota from mice with low intestinal immunoglobulin A (IgA) levels; we identified a Gram-negative bacterium, proposed as Tomasiella immunophila, that induces and degrades IgA in the mouse intestine. Mice harboring T. immunophila are susceptible to infections and show poor mucosal repair. T. immunophila is auxotrophic for the bacterial cell wall amino sugar N-acetylmuramic acid. It delivers immunoglobulin-degrading proteases into outer membrane vesicles that preferentially degrade rodent antibodies with kappa but not lambda light chains. This work indicates a role for symbionts in immunodeficiency, which might be applicable to human disease.
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Affiliation(s)
- Qiuhe Lu
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Thomas C A Hitch
- Functional Microbiome Research Group, Institute of Medical Microbiology, RWTH University Hospital, Aachen, Germany
| | - Julie Y Zhou
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Mohammed Dwidar
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Center for Microbiome & Human Health, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Naseer Sangwan
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Center for Microbiome & Human Health, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Dylan Lawrence
- Department of Medicine, Washington University, Saint Louis, MO 63110, USA
| | - Lila S Nolan
- Department of Medicine, Washington University, Saint Louis, MO 63110, USA
| | - Scott T Espenschied
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Kevin P Newhall
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Yi Han
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Paul E Karell
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Vanessa Salazar
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Megan T Baldridge
- Department of Medicine, Washington University, Saint Louis, MO 63110, USA
| | - Thomas Clavel
- Functional Microbiome Research Group, Institute of Medical Microbiology, RWTH University Hospital, Aachen, Germany
| | - Thaddeus S Stappenbeck
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
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2
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Carreto-Binaghi LE, Sztein MB, Booth JS. Role of cellular effectors in the induction and maintenance of IgA responses leading to protective immunity against enteric bacterial pathogens. Front Immunol 2024; 15:1446072. [PMID: 39324143 PMCID: PMC11422102 DOI: 10.3389/fimmu.2024.1446072] [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: 06/08/2024] [Accepted: 08/26/2024] [Indexed: 09/27/2024] Open
Abstract
The mucosal immune system is a critical first line of defense to infectious diseases, as many pathogens enter the body through mucosal surfaces, disrupting the balanced interactions between mucosal cells, secretory molecules, and microbiota in this challenging microenvironment. The mucosal immune system comprises of a complex and integrated network that includes the gut-associated lymphoid tissues (GALT). One of its primary responses to microbes is the secretion of IgA, whose role in the mucosa is vital for preventing pathogen colonization, invasion and spread. The mechanisms involved in these key responses include neutralization of pathogens, immune exclusion, immune modulation, and cross-protection. The generation and maintenance of high affinity IgA responses require a delicate balance of multiple components, including B and T cell interactions, innate cells, the cytokine milieu (e.g., IL-21, IL-10, TGF-β), and other factors essential for intestinal homeostasis, including the gut microbiota. In this review, we will discuss the main cellular components (e.g., T cells, innate lymphoid cells, dendritic cells) in the gut microenvironment as mediators of important effector responses and as critical players in supporting B cells in eliciting and maintaining IgA production, particularly in the context of enteric infections and vaccination in humans. Understanding the mechanisms of humoral and cellular components in protection could guide and accelerate the development of more effective mucosal vaccines and therapeutic interventions to efficiently combat mucosal infections.
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Affiliation(s)
- Laura E Carreto-Binaghi
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
- Laboratorio de Inmunobiologia de la Tuberculosis, Instituto Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico City, Mexico
| | - Marcelo B Sztein
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
- Tumor Immunology and Immunotherapy Program, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, United States
| | - Jayaum S Booth
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, United States
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, United States
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3
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Pang X, Zhou B, Wu J, Mo Q, Yang L, Liu T, Jin G, Zhang L, Liu X, Xu X, Wang B, Cao H. Lacticaseibacillus rhamnosus GG alleviates sleep deprivation-induced intestinal barrier dysfunction and neuroinflammation in mice. Food Funct 2024; 15:8740-8758. [PMID: 39101469 DOI: 10.1039/d4fo00244j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
Consuming probiotic products is a solution that people are willing to choose to augment health. As a global health hazard, sleep deprivation (SD) can cause both physical and mental diseases. The present study investigated the protective effects of Lacticaseibacillus rhamnosus GG (LGG), a widely used probiotic, on a SD mouse model. Here, it has been shown that SD induced intestinal damage in mice, while LGG supplementation attenuated disruption of the intestinal barrier and enhanced the antioxidant capacity. Microbiome analysis revealed that SD caused dysbiosis in the gut microbiota, characterized by increased levels of Clostridium XlVa, Alistipes, and Desulfovibrio, as well as decreased levels of Ruminococcus, which were partially ameliorated by LGG. Moreover, SD resulted in elevated pro-inflammatory cytokine concentrations in both the intestine and the brain, while LGG provided protection in both organs. LGG supplementation significantly improved locomotor activity in SD mice. Although heat-killed LGG showed some protective effects in SD mice, its overall efficacy was inferior to that of live LGG. In terms of mechanism, it was found that AG1478, an inhibitor of the epidermal growth factor receptor (EGFR) tyrosine kinase, could diminish the protective effects of LGG. In conclusion, LGG demonstrated the ability to alleviate SD-induced intestinal barrier dysfunction through EGFR activation and alleviate neuroinflammation.
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Affiliation(s)
- Xiaoqi Pang
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Bingqian Zhou
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Jingyi Wu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Qi Mo
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Lijiao Yang
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Tiaotiao Liu
- School of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin, 300070, China
| | - Ge Jin
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Lan Zhang
- Department of Geriatrics, General Hospital, Tianjin Medical University, Tianjin, 300052, China
| | - Xiang Liu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Xin Xu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
| | - Hailong Cao
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China.
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4
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Wang Y, Xiao J. Recent advances in the molecular understanding of immunoglobulin A. FEBS J 2024; 291:3597-3603. [PMID: 38329005 DOI: 10.1111/febs.17089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/11/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
Immunoglobulin A (IgA) plays a crucial role in the human immune system, particularly in mucosal immunity. IgA antibodies that target the mucosal surface are made up of two to five IgA monomers linked together by the joining chain, forming polymeric molecules. These IgA polymers are transported across mucosal epithelial cells by the polymeric immunoglobulin receptor pIgR, resulting in the formation of secretory IgA (SIgA). This review aims to explore recent advancements in our molecular understanding of IgA, with a specific focus on SIgA, and the interaction between IgA and pathogen molecules.
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Affiliation(s)
- Yuxin Wang
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
| | - Junyu Xiao
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
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5
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Fan Y, Wang Y, Xiao H, Sun H. Advancements in understanding the role of intestinal dysbacteriosis mediated mucosal immunity in IgA nephropathy. BMC Nephrol 2024; 25:203. [PMID: 38907188 PMCID: PMC11191200 DOI: 10.1186/s12882-024-03646-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024] Open
Abstract
IgA nephropathy, presently recognized as the foremost primary glomerular disorder, emerges as a principal contributor to renal failure globally, with its pathogenesis yet to be fully elucidated. Extensive research has highlighted the critical role of gut microbiome in the onset and progression of IgA nephropathy, underscoring its importance in accurately delineating the disease's etiology. For example, gut microbiome dysbacteriosis can lead to the production of nephritogenic IgA1 antibodies, which form immune complexes that deposit in the kidneys, causing inflammation and damage. The gut microbiome, a source of numerous bioactive compounds, interacts with the host and plays a regulatory role in gut-immune axis modulation, earning it the moniker of the "second brain." Recent investigations have particularly emphasized a significant correlation between IgA nephropathy and gut microbiome dysbacteriosis. This article offers a detailed overview of the pathogenic mechanisms of IgA nephropathy, specifically focusing on elucidating how alterations in the gut microbiome are associated with anomalies in the intestinal mucosal system in IgA nephropathy. Additionally, it describes the possible influence of gut microbiome on recurrent IgA nephropathy following kidney transplantation. Furthermore, it compiles potential therapeutic interventions, offering both theoretical and practical foundations for the management of IgA nephropathy. Lastly, the challenges currently faced in the therapeutic approaches to IgA nephropathy are discussed.
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Affiliation(s)
- Yitao Fan
- The Second Clinical Medical College of Lanzhou University, Lanzhou, 730030, Gansu, China
- Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Yan Wang
- The Second Clinical Medical College of Lanzhou University, Lanzhou, 730030, Gansu, China
- Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Han Xiao
- The Second Clinical Medical College of Lanzhou University, Lanzhou, 730030, Gansu, China
- Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Hui Sun
- The Second Clinical Medical College of Lanzhou University, Lanzhou, 730030, Gansu, China.
- Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China.
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6
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Verma S, Dufort MJ, Olsen TM, Kimmel S, Labuda JC, Scharffenberger S, McGuire AT, Harrison OJ. Antigen-level resolution of commensal-specific B cell responses can be enabled by phage display screening coupled with B cell tetramers. Immunity 2024; 57:1428-1441.e8. [PMID: 38723638 PMCID: PMC11168869 DOI: 10.1016/j.immuni.2024.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/07/2024] [Accepted: 04/16/2024] [Indexed: 06/14/2024]
Abstract
Induction of commensal-specific immunity contributes to tissue homeostasis, yet the mechanisms underlying induction of commensal-specific B cells remain poorly understood in part due to a lack of tools to identify these cells. Using phage display, we identified segmented filamentous bacteria (SFB) antigens targeted by serum and intestinal antibodies and generated B cell tetramers to track SFB-specific B cells in gut-associated lymphoid tissues. We revealed a compartmentalized response in SFB-specific B cell activation, with a gradient of immunoglobulin A (IgA), IgG1, and IgG2b isotype production along Peyer's patches contrasted by selective production of IgG2b within mesenteric lymph nodes. V(D)J sequencing and monoclonal antibody generation identified somatic hypermutation driven affinity maturation to SFB antigens under homeostatic conditions. Combining phage display and B cell tetramers will enable investigation of the ontogeny and function of commensal-specific B cell responses in tissue immunity, inflammation, and repair.
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Affiliation(s)
- Sheenam Verma
- Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Matthew J Dufort
- Center for Systems Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Tayla M Olsen
- Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA, USA; Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA
| | - Samantha Kimmel
- Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Jasmine C Labuda
- Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Sam Scharffenberger
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Andrew T McGuire
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA; Department of Global Health, University of Washington, Seattle, WA, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Oliver J Harrison
- Center for Fundamental Immunology, Benaroya Research Institute, Seattle, WA, USA; Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA; Department of Immunology, University of Washington, Seattle, WA, USA.
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7
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Zhang B, Chen S, Yin X, McBride CD, Gertie JA, Yurieva M, Bielecka AA, Hoffmann B, Travis Hinson J, Grassmann J, Xu L, Siniscalco ER, Soldatenko A, Hoyt L, Joseph J, Norton EB, Uthaman G, Palm NW, Liu E, Eisenbarth SC, Williams A. Metabolic fitness of IgA + plasma cells in the gut requires DOCK8. Mucosal Immunol 2024; 17:431-449. [PMID: 38159726 DOI: 10.1016/j.mucimm.2023.12.001] [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: 07/10/2023] [Revised: 11/16/2023] [Accepted: 12/01/2023] [Indexed: 01/03/2024]
Abstract
Dedicator of cytokinesis 8 (DOCK8) mutations lead to a primary immunodeficiency associated with recurrent gastrointestinal infections and poor antibody responses but, paradoxically, heightened IgE to food antigens, suggesting that DOCK8 is central to immune homeostasis in the gut. Using Dock8-deficient mice, we found that DOCK8 was necessary for mucosal IgA production to multiple T cell-dependent antigens, including peanut and cholera toxin. Yet DOCK8 was not necessary in T cells for this phenotype. Instead, B cell-intrinsic DOCK8 was required for maintenance of antigen-specific IgA-secreting plasma cells (PCs) in the gut lamina propria. Unexpectedly, DOCK8 was not required for early B cell activation, migration, or IgA class switching. An unbiased interactome screen revealed novel protein partners involved in metabolism and apoptosis. Dock8-deficient IgA+ B cells had impaired cellular respiration and failed to engage glycolysis appropriately. These results demonstrate that maintenance of the IgA+ PC compartment requires DOCK8 and suggest that gut IgA+ PCs have unique metabolic requirements for long-term survival in the lamina propria.
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Affiliation(s)
- Biyan Zhang
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Singapore Immunology Network (SIgN), Agency for Science, Technology, and Research (A*STAR), 8A Biomedical Grove, Immunos, Singapore 138648, Singapore
| | - Shuting Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Xiangyun Yin
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Caleb D McBride
- The Department Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Jake A Gertie
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Marina Yurieva
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA
| | - Agata A Bielecka
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Microbial Immunoregulation, Helmholtz Center for Infection Research, 38124 Braunschweig, Germany
| | - Brian Hoffmann
- Mass Spectrometry and Protein Chemistry, The Jackson Laboratory for Genomic Medicine, Bar Harbor, ME 04609, USA
| | - J Travis Hinson
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA; Cardiology center, Department of Medicine, UConn Health, Farmington, CT, USA
| | - Jessica Grassmann
- The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA
| | - Lan Xu
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Emily R Siniscalco
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Arielle Soldatenko
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Laura Hoyt
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Julie Joseph
- Department of Laboratory Medicine, USA; Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA 19102, USA
| | - Elizabeth B Norton
- Department of Microbiology & Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Gowthaman Uthaman
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Department of Pathology, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Noah W Palm
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Elise Liu
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Section of Rheumatology, Allergy & Immunology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Stephanie C Eisenbarth
- Department of Laboratory Medicine, USA; Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; The Department Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Center for Human Immunobiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Adam Williams
- The Department Medicine, Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; The Jackson Laboratory for Genomic Medicine, Farmington, CT 06030, USA; Center for Human Immunobiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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Zhao M, Liang X, Meng Y, Lu H, Lin K, Gong P, Liu T, Yi H, Pan J, Zhang Y, Zhang Z, Zhang L. Probiotics induce intestinal IgA secretion in weanling mice potentially through promoting intestinal APRIL expression and modulating the gut microbiota composition. Food Funct 2024; 15:4862-4873. [PMID: 38587236 DOI: 10.1039/d4fo00962b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Intestinal infections are strongly associated with infant mortality, and intestinal immunoglobulin A (IgA) is important to protect infants from intestinal infections after weaning. This study aims to screen probiotics that can promote the production of intestinal IgA after weaning and further explore their potential mechanisms of action. In this study, probiotics promoting intestinal IgA production were screened in weanling mouse models. The results showed that oral administration of Bifidobacterium bifidum (B. bifidum) FL228.1 and Bifidobacterium bifidum (B. bifidum) FL276.1 significantly enhanced IgA levels in the small intestine and upregulated the expression of a proliferation-inducing ligand (APRIL) and its upstream regulatory factor toll-like receptor 4 (TLR4). Furthermore, B. bifidum FL228.1 upregulated the relative abundance of Lactobacillus, while B. bifidum FL276.1 increased the relative abundance of Marvinbryantia and decreased Mucispirillum, further elevating intestinal IgA levels. In summary, B. bifidum FL228.1 and B. bifidum FL276.1 can induce IgA production in the intestinal tract of weanling mice by promoting intestinal APRIL expression and mediating changes in the gut microbiota, thus playing a significant role in enhancing local intestinal immunity in infants.
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Affiliation(s)
- Maozhen Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Xi Liang
- College of Public Health, Qingdao University, Qingdao, 266000, China
| | - Yang Meng
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Haiyan Lu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Kai Lin
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Pimin Gong
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Tongjie Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Huaxi Yi
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Jiancun Pan
- Heilongjiang Feihe Dairy Co., Ltd., Qiqihar, 161000, China
| | - Yongjiu Zhang
- Heilongjiang Feihe Dairy Co., Ltd., Qiqihar, 161000, China
| | - Zhe Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Lanwei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
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9
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Dubois C, Ducas É, Laforce-Lavoie A, Robidoux J, Delorme A, Live LS, Brouard D, Masson JF. A portable surface plasmon resonance (SPR) sensor for the detection of immunoglobulin A in plasma. Transfusion 2024; 64:881-892. [PMID: 38591151 DOI: 10.1111/trf.17818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/05/2024] [Accepted: 03/20/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND A life-threatening anaphylactic shock can occur if a patient with undiagnosed immunoglobulin A (IgA) deficiency (i.e., IgA levels <500 ng/mL) receives IgA-containing blood, hence the need for a rapid, point-of-care (POC) method for IgA deficiency screening. Enzyme-linked immunosorbent assay (ELISA) is routinely used to detect IgA, but this method requires trained specialists and ≥24 h to obtain a result. We developed a surface plasmon resonance (SPR)-based protocol to identify IgA-deficient patients or donors within 1 h. MATERIALS AND METHODS The SPR sensor relies on the detection of IgAs captured by primary antibodies adsorbed on the SPR chip and quantified with secondary antibodies. The sensor was calibrated from 0 to 2000 ng/mL in buffer, IgA-depleted human serum, and plasma samples from IgA-deficient individuals. A critical concentration of 500 ng/mL was set for IgA deficiency. The optimized sensor was then tested on eight plasma samples with known IgA status (determined by ELISA), including five with IgA deficiency and three with normal IgA levels. RESULTS The limit of detection was estimated at 30 ng/mL in buffer and 400 ng/mL in diluted plasma. The results obtained fully agreed with ELISA among the eight plasma samples tested. The protocol distinguished IgA-deficient from normal samples, even for samples with an IgA concentration closer to critical concentration. DISCUSSION In conclusion, we developed a reliable POC assay for the quantification of IgA in plasma. This test may permit POC testing at blood drives and centralized centers to maintain reserves of IgA-deficient blood and in-hospital testing of blood recipients.
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Affiliation(s)
- Caroline Dubois
- Département de Chimie, Quebec Center for Advanced Materials, Regroupement Québécois sur les Matériaux de Pointe, and Centre Interdisciplinaire de Recherche sur le Cerveau et l'Apprentissage, Institut Courtois, Université de Montréal, Montréal, Canada
| | - Éric Ducas
- Héma-Québec, Affaires Médicales et Innovation, Québec City, Québec, Canada
| | | | - Jonathan Robidoux
- Héma-Québec, Affaires Médicales et Innovation, Québec City, Québec, Canada
| | - Alexandre Delorme
- Département de Chimie, Quebec Center for Advanced Materials, Regroupement Québécois sur les Matériaux de Pointe, and Centre Interdisciplinaire de Recherche sur le Cerveau et l'Apprentissage, Institut Courtois, Université de Montréal, Montréal, Canada
| | | | - Danny Brouard
- Héma-Québec, Affaires Médicales et Innovation, Québec City, Québec, Canada
| | - Jean-François Masson
- Département de Chimie, Quebec Center for Advanced Materials, Regroupement Québécois sur les Matériaux de Pointe, and Centre Interdisciplinaire de Recherche sur le Cerveau et l'Apprentissage, Institut Courtois, Université de Montréal, Montréal, Canada
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10
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Berkson JD, Wate CE, Allen GB, Schubert AM, Dunbar KE, Coryell MP, Sava RL, Gao Y, Hastie JL, Smith EM, Kenneally CR, Zimmermann SK, Carlson PE. Phage-specific immunity impairs efficacy of bacteriophage targeting Vancomycin Resistant Enterococcus in a murine model. Nat Commun 2024; 15:2993. [PMID: 38582763 PMCID: PMC10998888 DOI: 10.1038/s41467-024-47192-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/22/2024] [Indexed: 04/08/2024] Open
Abstract
Bacteriophage therapy is a promising approach to address antimicrobial infections though questions remain regarding the impact of the immune response on clinical effectiveness. Here, we develop a mouse model to assess phage treatment using a cocktail of five phages from the Myoviridae and Siphoviridae families that target Vancomycin-Resistant Enterococcus gut colonization. Phage treatment significantly reduces fecal bacterial loads of Vancomycin-Resistant Enterococcus. We also characterize immune responses elicited following administration of the phage cocktail. While minimal innate responses are observed after phage administration, two rounds of treatment induces phage-specific neutralizing antibodies and accelerate phage clearance from tissues. Interestingly, the myophages in our cocktail induce a more robust neutralizing antibody response than the siphophages. This anti-phage immunity reduces the effectiveness of the phage cocktail in our murine model. Collectively, this study shows phage-specific immune responses may be an important consideration in the development of phage cocktails for therapeutic use.
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Affiliation(s)
- Julia D Berkson
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Claire E Wate
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Garrison B Allen
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Alyxandria M Schubert
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Kristin E Dunbar
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Michael P Coryell
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Rosa L Sava
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Yamei Gao
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Viral Products, Laboratory of Pediatric and Respiratory Viral Diseases, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Jessica L Hastie
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Emily M Smith
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Charlotte R Kenneally
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Sally K Zimmermann
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA
| | - Paul E Carlson
- Food and Drug Administration, Center for Biologics Evaluation and Research, Office of Vaccines Research and Review, Division of Bacterial Parasitic and Allergenic Products, Laboratory of Mucosal Pathogens and Cellular Immunology, 10903 New Hampshire Ave, Silver Spring, MD, 20832, USA.
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11
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De Giovanni M, Vykunta VS, Biram A, Chen KY, Taglinao H, An J, Sheppard D, Paidassi H, Cyster JG. Mast cells help organize the Peyer's patch niche for induction of IgA responses. Sci Immunol 2024; 9:eadj7363. [PMID: 38427721 PMCID: PMC11008922 DOI: 10.1126/sciimmunol.adj7363] [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: 07/13/2023] [Accepted: 01/23/2024] [Indexed: 03/03/2024]
Abstract
Peyer's patches (PPs) are lymphoid structures situated adjacent to the intestinal epithelium that support B cell responses that give rise to many intestinal IgA-secreting cells. Induction of isotype switching to IgA in PPs requires interactions between B cells and TGFβ-activating conventional dendritic cells type 2 (cDC2s) in the subepithelial dome (SED). However, the mechanisms promoting cDC2 positioning in the SED are unclear. Here, we found that PP cDC2s express GPR35, a receptor that promotes cell migration in response to various metabolites, including 5-hydroxyindoleacetic acid (5-HIAA). In mice lacking GPR35, fewer cDC2s were found in the SED, and frequencies of IgA+ germinal center (GC) B cells were reduced. IgA plasma cells were reduced in both the PPs and lamina propria. These phenotypes were also observed in chimeric mice that lacked GPR35 selectively in cDCs. GPR35 deficiency led to reduced coating of commensal bacteria with IgA and reduced IgA responses to cholera toxin. Mast cells were present in the SED, and mast cell-deficient mice had reduced PP cDC2s and IgA+ cells. Ablation of tryptophan hydroxylase 1 (Tph1) in mast cells to prevent their production of 5-HIAA similarly led to reduced PP cDC2s and IgA responses. Thus, mast cell-guided positioning of GPR35+ cDC2s in the PP SED supports induction of intestinal IgA responses.
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Affiliation(s)
- Marco De Giovanni
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Vivasvan S. Vykunta
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
- Medical Scientist Training Program, School of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Adi Biram
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Kevin Y. Chen
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
- Medical Scientist Training Program, School of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Hanna Taglinao
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Jinping An
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Dean Sheppard
- Lung Biology Center, Department of Medicine, University of California San Francisco, 1550 4 Street, San Francisco, CA 94158, USA
| | - Helena Paidassi
- CIRI, Centre International de Recherche en Infectiologie, Univ Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, France
| | - Jason G. Cyster
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA
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12
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Zhang Z, Tanaka I, Nakahashi-Ouchida R, Ernst PB, Kiyono H, Kurashima Y. Glycoprotein 2 as a gut gate keeper for mucosal equilibrium between inflammation and immunity. Semin Immunopathol 2024; 45:493-507. [PMID: 38170255 PMCID: PMC11136868 DOI: 10.1007/s00281-023-00999-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/20/2023] [Indexed: 01/05/2024]
Abstract
Glycoprotein 2 (GP2) is a widely distributed protein in the digestive tract, contributing to mucosal barrier maintenance, immune homeostasis, and antigen-specific immune response, while also being linked to inflammatory bowel disease (IBD) pathogenesis. This review sheds light on the extensive distribution of GP2 within the gastrointestinal tract and its intricate interplay with the immune system. Furthermore, the significance of GP2 autoantibodies in diagnosing and categorizing IBD is underscored, alongside the promising therapeutic avenues for modulating GP2 to regulate immunity and maintain mucosal balance.
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Affiliation(s)
- Zhongwei Zhang
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Chiba University Futuristic Mucosal Vaccine Research and Development Synergy Institute (cSIMVa), Chiba, Japan
| | - Izumi Tanaka
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Chiba University Futuristic Mucosal Vaccine Research and Development Synergy Institute (cSIMVa), Chiba, Japan
| | - Rika Nakahashi-Ouchida
- Chiba University Futuristic Mucosal Vaccine Research and Development Synergy Institute (cSIMVa), Chiba, Japan
- Division of Mucosal Immunology, IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Mucosal Vaccines, International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan
| | - Peter B Ernst
- Department of Medicine, School of Medicine, Chiba University-University of California San Diego Center for Mucosal Immunology, Allergy and Vaccine (CU-UCSD cMAV), San Diego, CA, USA
- Division of Comparative Pathology and Medicine, Department of Pathology, University of California, San Diego, CA, USA
- Center for Veterinary Sciences and Comparative Medicine, University of California, San Diego, CA, USA
- Future Medicine Education and Research Organization, Chiba University, Chiba, Japan
| | - Hiroshi Kiyono
- Chiba University Futuristic Mucosal Vaccine Research and Development Synergy Institute (cSIMVa), Chiba, Japan
- Division of Mucosal Immunology, IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan
- Department of Medicine, School of Medicine, Chiba University-University of California San Diego Center for Mucosal Immunology, Allergy and Vaccine (CU-UCSD cMAV), San Diego, CA, USA
- Future Medicine Education and Research Organization, Chiba University, Chiba, Japan
- HanaVax Inc., Tokyo, Japan
- Mucosal Immunology and Allergy Therapeutics, Institute for Global Prominent Research, Chiba University, Chiba, Japan
| | - Yosuke Kurashima
- Department of Innovative Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
- Chiba University Futuristic Mucosal Vaccine Research and Development Synergy Institute (cSIMVa), Chiba, Japan.
- Division of Mucosal Immunology, IMSUT Distinguished Professor Unit, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
- Department of Human Mucosal Vaccinology, Chiba University Hospital, Chiba, Japan.
- Department of Medicine, School of Medicine, Chiba University-University of California San Diego Center for Mucosal Immunology, Allergy and Vaccine (CU-UCSD cMAV), San Diego, CA, USA.
- Division of Clinical Vaccinology, International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
- Institute for Advanced Academic Research, Chiba University, Chiba, Japan.
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13
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Yang T, Sun Y, Dai Z, Liu J, Xiao S, Liu Y, Wang X, Yang S, Zhang R, Yang C, Dai B. Microencapsulated Sodium Butyrate Alleviates Immune Injury and Intestinal Problems Caused by Clostridium Perfringens through Gut Microbiota. Animals (Basel) 2023; 13:3784. [PMID: 38136821 PMCID: PMC10741131 DOI: 10.3390/ani13243784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
Microencapsulated sodium butyrate (MS-SB) is an effective sodium butyrate additive which can reduce the release of sodium butyrate (SB) in the fore gastrointestinal tract. In this study, we assess the protective effects and mechanisms of MS-SB in Clostridium perfringens (C. perfringens)-challenged broilers. Broiler chickens were pre-treated with SB or MS-SB for 56 days and then challenged with C. perfringens three times. Our results indicate that the addition of MS-SB or SB before C. perfringens infection significantly decreased the thymus index (p < 0.05). Serum IgA, IgY, and IgM concentrations were significantly increased (p < 0.05), while pro-inflammatory IL-1β, IL-6, and TNF-α were significantly decreased (p < 0.05) under MS-SB or SB supplementation. Compared with SB, MS-SB presented a stronger performance, with higher IgA content, as well as a lower IL-1β level when normal or C. perfringens-challenged. While C. perfringens challenge significantly decreased the villus height (p < 0.05), MS-SB or SB administration significantly increased the villus height and villus height/crypt depth (V/C ratio) (p < 0.05). Varying degrees of SB or MS-SB increased the concentrations of volatile fatty acids (VFAs) during C. perfringens challenge, where MS-SB presented a stronger performance, as evidenced by the higher content of isovaleric acid and valeric acid. Microbial analysis demonstrated that both SB or MS-SB addition and C. perfringens infection increase variation in the microbiota community. The results also indicate that the proportions of Bacteroides, Faecalibacterium, Clostridia, Ruminococcaceae, Alistipes, and Clostridia were significantly higher in the MS-SB addition group while, at same time, C. perfringens infection increased the abundance of Bacteroides and Alistipes. In summary, dietary supplementation with SB or MS-SB improves the immune status and morphology of intestinal villi, increases the production of VFAs, and modulates cecal microbiota in chickens challenged with C. perfringens. Moreover, MS-SB was more effective than SB with the same supplemental amount.
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Affiliation(s)
- Ting Yang
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
| | - Yaowei Sun
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
| | - Zhenglie Dai
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
| | - Jinsong Liu
- Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China; (J.L.); (S.X.); (Y.L.); (C.Y.)
| | - Shiping Xiao
- Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China; (J.L.); (S.X.); (Y.L.); (C.Y.)
| | - Yulan Liu
- Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China; (J.L.); (S.X.); (Y.L.); (C.Y.)
| | - Xiuxi Wang
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
| | - Shenglan Yang
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
| | - Ruiqiang Zhang
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
| | - Caimei Yang
- Zhejiang Vegamax Biotechnology Co., Ltd., Huzhou 313300, China; (J.L.); (S.X.); (Y.L.); (C.Y.)
| | - Bing Dai
- College of Animal Science and Technology, College of Veterinary Medicine, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection and Internet Technology, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China; (T.Y.); (Y.S.); (Z.D.); (X.W.); (S.Y.); (R.Z.)
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14
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Russo M, Mendes-Corrêa MC, Lins BB, Kersten V, Pernambuco Filho PCA, Martins TR, Tozetto-Mendoza TR, Vilas Boas LS, Gomes BM, Dati LMM, Duarte-Neto AN, Reigado GR, Frederico ABT, de Brito e Cunha DRDA, de Paula AV, da Silva JIG, Vasconcelos CFM, Chambergo FS, Nunes VA, Ano Bom APD, Castilho LR, Martins RAP, Hirata MH, Mirotti L. Intranasal Liposomal Formulation of Spike Protein Adjuvanted with CpG Protects and Boosts Heterologous Immunity of hACE2 Transgenic Mice to SARS-CoV-2 Infection. Vaccines (Basel) 2023; 11:1732. [PMID: 38006064 PMCID: PMC10675295 DOI: 10.3390/vaccines11111732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Mucosal vaccination appears to be suitable to protect against SARS-CoV-2 infection. In this study, we tested an intranasal mucosal vaccine candidate for COVID-19 that consisted of a cationic liposome containing a trimeric SARS-CoV-2 spike protein and CpG-ODNs, a Toll-like receptor 9 agonist, as an adjuvant. In vitro and in vivo experiments indicated the absence of toxicity following the intranasal administration of this vaccine formulation. First, we found that subcutaneous or intranasal vaccination protected hACE-2 transgenic mice from infection with the wild-type (Wuhan) SARS-CoV-2 strain, as shown by weight loss and mortality indicators. However, when compared with subcutaneous administration, the intranasal route was more effective in the pulmonary clearance of the virus and induced higher neutralizing antibodies and anti-S IgA titers. In addition, the intranasal vaccination afforded protection against gamma, delta, and omicron virus variants of concern. Furthermore, the intranasal vaccine formulation was superior to intramuscular vaccination with a recombinant, replication-deficient chimpanzee adenovirus vector encoding the SARS-CoV-2 spike glycoprotein (Oxford/AstraZeneca) in terms of virus lung clearance and production of neutralizing antibodies in serum and bronchial alveolar lavage (BAL). Finally, the intranasal liposomal formulation boosted heterologous immunity induced by previous intramuscular vaccination with the Oxford/AstraZeneca vaccine, which was more robust than homologous immunity.
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Affiliation(s)
- Momtchilo Russo
- Department of Immunology, Institute of Biomedical Science, University of São Paulo (ICB-USP), São Paulo 05508-000, Brazil
| | - Maria Cássia Mendes-Corrêa
- Laboratório de Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo (FM-USP), São Paulo 05403-000, Brazil; (M.C.M.-C.); (T.R.M.)
| | - Bruna B. Lins
- Department of Immunology, Institute of Biomedical Science, University of São Paulo (ICB-USP), São Paulo 05508-000, Brazil
| | - Victor Kersten
- Department of Immunology, Institute of Biomedical Science, University of São Paulo (ICB-USP), São Paulo 05508-000, Brazil
| | - Paulo C. A. Pernambuco Filho
- Department of Immunology, Institute of Biomedical Science, University of São Paulo (ICB-USP), São Paulo 05508-000, Brazil
| | - Toni Ricardo Martins
- Laboratório de Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo (FM-USP), São Paulo 05403-000, Brazil; (M.C.M.-C.); (T.R.M.)
- Faculdade de Ciências Farmacêuticas, Universidade Federal do Amazonas (UFAM), Manaus 69080-900, Brazil
| | - Tânia Regina Tozetto-Mendoza
- Laboratório de Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo (FM-USP), São Paulo 05403-000, Brazil; (M.C.M.-C.); (T.R.M.)
| | - Lucy Santos Vilas Boas
- Laboratório de Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo (FM-USP), São Paulo 05403-000, Brazil; (M.C.M.-C.); (T.R.M.)
| | - Brisa Moreira Gomes
- Department of Immunology, Institute of Biomedical Science, University of São Paulo (ICB-USP), São Paulo 05508-000, Brazil
| | - Livia Mendonça Munhoz Dati
- Departamento de Analises Clinicas e Toxicologicas, Faculdade de Ciências Farmacêuticas da Universidade de Sao Paulo (FCF-USP), São Paulo 05508-000, Brazil (M.H.H.)
| | - Amaro Nunes Duarte-Neto
- Departamento de Patologia, Faculdade de Medicina da Universidade de São Paulo (FM-USP), São Paulo 05403-000, Brazil
| | - Gustavo Roncoli Reigado
- Laboratório de Biotecnologia, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo (EACH-USP), São Paulo 03828-000, Brazil (F.S.C.); (V.A.N.)
| | - Ana Beatriz T. Frederico
- Immunological Technology Laboratory, Institute of Immunobiological Technology (Bio-Manguinhos), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro 21040-900, Brazil (A.P.D.A.B.)
| | - Danielle R. de A. de Brito e Cunha
- Immunological Technology Laboratory, Institute of Immunobiological Technology (Bio-Manguinhos), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro 21040-900, Brazil (A.P.D.A.B.)
| | - Anderson Vicente de Paula
- Laboratório de Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo (FM-USP), São Paulo 05403-000, Brazil; (M.C.M.-C.); (T.R.M.)
| | - José Igor G. da Silva
- Programa de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil (R.A.P.M.)
| | - Carlos F. Moreira Vasconcelos
- Programa de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil (R.A.P.M.)
| | - Felipe S. Chambergo
- Laboratório de Biotecnologia, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo (EACH-USP), São Paulo 03828-000, Brazil (F.S.C.); (V.A.N.)
| | - Viviane Abreu Nunes
- Laboratório de Biotecnologia, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo (EACH-USP), São Paulo 03828-000, Brazil (F.S.C.); (V.A.N.)
| | - Ana Paula Dinis Ano Bom
- Immunological Technology Laboratory, Institute of Immunobiological Technology (Bio-Manguinhos), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro 21040-900, Brazil (A.P.D.A.B.)
| | - Leda R. Castilho
- Cell Culture Engineering Laboratory, COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-598, Brazil;
| | - Rodrigo A. P. Martins
- Programa de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil (R.A.P.M.)
| | - Mario Hiroyuki Hirata
- Departamento de Analises Clinicas e Toxicologicas, Faculdade de Ciências Farmacêuticas da Universidade de Sao Paulo (FCF-USP), São Paulo 05508-000, Brazil (M.H.H.)
| | - Luciana Mirotti
- Institute of Science and Technology in Biomodels (ICTB), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro 21040-900, Brazil
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15
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Li Y, Wang J, Wang R, Chang Y, Wang X. Gut bacteria induce IgA expression in pituitary hormone-secreting cells during aging. iScience 2023; 26:107747. [PMID: 37692284 PMCID: PMC10492204 DOI: 10.1016/j.isci.2023.107747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/17/2023] [Accepted: 08/24/2023] [Indexed: 09/12/2023] Open
Abstract
Pituitary hormone decline is a hallmark of aging. However, the precise gene regulation mechanism during pituitary aging is unclear. Here, we characterized the cell population alteration and global transcriptional change during pituitary aging through single-cell RNA sequencing (scRNA-seq). We found that mRNA-encoding components of protein translational machinery declined the most in the pituitary during aging. Remarkably, Immunoglobulin A (IgA) was found to be expressed in hormone-secreting cells, and the IgA expression level increased dramatically in aged pituitary. Moreover, the pituitary IgA expression was regulated by gut microbiota. The non-hematopoietic origin of the IgA+ cells in the pituitary was further confirmed through bone marrow transplantation. Somatotropes were identified as the most prominent IgA-producing cells through lineage tracing. Thus, pituitary hormone-secreting cells can generate IgA in an age-dependent manner, and such a process is influenced by gut bacteria.
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Affiliation(s)
- Yehua Li
- National Institute of Biological Sciences, 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Jiawen Wang
- National Institute of Biological Sciences, 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Rui Wang
- National Institute of Biological Sciences, 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Ying Chang
- National Institute of Biological Sciences, 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Xiaodong Wang
- National Institute of Biological Sciences, 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
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16
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Yan L, Wu H, Guan S, Ma W, Fu Y, Ji P, Lian Z, Zhang L, Xing Y, Wang B, Liu G. The Effects of Mammary Gland ATIII Overexpression on the General Health of Dairy Goats and Their Anti-Inflammatory Response to LPS Stimulation. Int J Mol Sci 2023; 24:15303. [PMID: 37894983 PMCID: PMC10607088 DOI: 10.3390/ijms242015303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Antithrombin III is an important anticoagulant factor with anti-inflammatory properties. However, few studies have explored its anti-inflammatory actions in ATIII overexpressed transgenic animals. In this study, the dairy goats with mammary overexpression of ATIII were used to investigate their general health, milk quality and particularly their response to inflammatory challenge. The results showed that transgenic goats have a normal phenotype regarding their physiological and biochemical parameters, including whole blood cells, serum protein levels, total cholesterol, urea nitrogen, uric acid, and total bilirubin, compared to the WT. In addition, the quality of milk also improved in transgenic animals compared to the WT, as indicated by the increased milk fat and dry matter content and the reduced somatic cell numbers. Under the stimulation of an LPS injection, the transgenic goats had elevated contents of IGA, IGM and superoxide dismutase SOD, and had reduced proinflammatory cytokine release, including IL-6, TNF-α and IFN-β. A 16S rDNA sequencing analysis also showed that the transgenic animals had a similar compositions of gut microbiota to the WT goats under the stimulation of LPS injections. Mammary gland ATIII overexpression in dairy goats is a safe process, and it did not jeopardize the general health of the transgenic animals; moreover, the compositions of their gut microbiota also improved with the milk quality. The LPS stimulation study suggests that the increased ATIII expression may directly or indirectly suppress the inflammatory response to increase the resistance of transgenic animals to pathogen invasion. This will be explored in future studies.
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Affiliation(s)
- Laiqing Yan
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Hao Wu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Shengyu Guan
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Wenkui Ma
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Yao Fu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Pengyun Ji
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Zhengxing Lian
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Lu Zhang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Yiming Xing
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, China;
| | - Bingyuan Wang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
| | - Guoshi Liu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory of Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (L.Y.); (H.W.); (S.G.); (W.M.); (Y.F.); (P.J.); (Z.L.); (L.Z.)
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17
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Wang H, Barrow F, Fredrickson G, Florczak K, Nguyen H, Parthiban P, Herman A, Adeyi O, Staley C, Ikramuddin S, Ruan HB, Jameson SC, Revelo XS. Dysfunctional T Follicular Helper Cells Cause Intestinal and Hepatic Inflammation in NASH. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.07.544061. [PMID: 37873316 PMCID: PMC10592647 DOI: 10.1101/2023.06.07.544061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Nonalcoholic steatohepatitis (NASH), characterized by hepatic inflammation and cellular damage, is the most severe form of nonalcoholic fatty liver disease and the fastest-growing indication for a liver transplant. The intestinal immune system is a central modulator of local and systemic inflammation. In particular, Peyer's patches (PPs) contain T follicular helper (Tfh) cells that support germinal center (GC) responses required for the generation of high-affinity intestinal IgA and the maintenance of intestinal homeostasis. However, our understanding of the mechanisms regulating mucosal immunity during the pathogenesis of NASH is incomplete. Here, using a preclinical mouse model that resembles the key features of human disease, we discovered an essential role for Tfh cells in the pathogenesis of NASH. We have found that mice fed a high-fat high-carbohydrate (HFHC) diet have an inflamed intestinal microenvironment, characterized by enlarged PPs with an expansion of Tfh cells. Surprisingly, the Tfh cells in the PPs of NASH mice showed evidence of dysfunction, along with defective GC responses and reduced IgA+ B cells. Tfh-deficient mice fed the HFHC diet showed compromised intestinal permeability, increased hepatic inflammation, and aggravated NASH, suggesting a fundamental role for Tfh cells in maintaining gut-liver homeostasis. Mechanistically, HFHC diet feeding leads to an aberrant increase in the expression of the transcription factor KLF2 in Tfh cells which inhibits its function. Thus, transgenic mice with reduced KLF2 expression in CD4 T cells displayed improved Tfh cell function and ameliorated NASH, including hepatic steatosis, inflammation, and fibrosis after HFHC feeding. Overall, these findings highlight Tfh cells as key intestinal immune cells involved in the regulation of inflammation in the gut-liver axis during NASH.
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Affiliation(s)
- Haiguang Wang
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Fanta Barrow
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Gavin Fredrickson
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kira Florczak
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Huy Nguyen
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Preethy Parthiban
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Adam Herman
- Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA
| | - Oyedele Adeyi
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Christopher Staley
- Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA
| | - Sayeed Ikramuddin
- Department of Surgery, University of Minnesota, Minneapolis, MN 55455, USA
| | - Hai-Bin Ruan
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Stephen C. Jameson
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Xavier S. Revelo
- Department of Integrative Biology & Physiology, University of Minnesota, Minneapolis, MN 55455, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
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18
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Canales-Herrerias P, Cerutti A. Gut IgA: Never fear, the super inducers are here. Cell Host Microbe 2023; 31:1595-1597. [PMID: 37827118 DOI: 10.1016/j.chom.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023]
Abstract
In this issue of Cell Host & Microbe, Zhang et al. show that long-term oral administration of a pectin-derived prebiotic broadly enhanced IgA responses to commensals in the small intestine. This effect required T cells and involved Lachnospiraceae A2, suggesting that a few symbionts promote IgA responses to many commensals.
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Affiliation(s)
- Pablo Canales-Herrerias
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Henry D. Janowitz Division of Gastroenterology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrea Cerutti
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Translational Clinical Research Program, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain; Catalan Institute for Research and Advanced Studies (ICREA), Barcelona, Spain.
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19
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Zhang S, Han Y, Schofield W, Nicosia M, Karell PE, Newhall KP, Zhou JY, Musich RJ, Pan S, Valujskikh A, Sangwan N, Dwidar M, Lu Q, Stappenbeck TS. Select symbionts drive high IgA levels in the mouse intestine. Cell Host Microbe 2023; 31:1620-1638.e7. [PMID: 37776865 DOI: 10.1016/j.chom.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/14/2023] [Accepted: 09/01/2023] [Indexed: 10/02/2023]
Abstract
Immunoglobulin A (IgA) is an important factor in maintaining homeostasis at mucosal surfaces, yet luminal IgA levels vary widely. Total IgA levels are thought to be driven by individual immune responses to specific microbes. Here, we found that the prebiotic, pectin oligosaccharide (pec-oligo), induced high IgA levels in the small intestine in a T cell-dependent manner. Surprisingly, this IgA-high phenotype was retained after cessation of pec-oligo treatment, and microbiome transmission either horizontally or vertically was sufficient to retain high IgA levels in the absence of pec-oligo. Interestingly, the bacterial taxa enriched in the overall pec-oligo bacterial community differed from IgA-coated microbes in this same community. Rather, a group of ethanol-resistant microbes, highly enriched for Lachnospiraceae bacterium A2, drove the IgA-high phenotype. These findings support a model of intestinal adaptive immunity in which a limited number of microbes can promote durable changes in IgA directed to many symbionts.
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Affiliation(s)
- Shanshan Zhang
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan 250000, P.R. China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Yi Han
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | | | - Michael Nicosia
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Paul E Karell
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Kevin P Newhall
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Julie Y Zhou
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Ryan J Musich
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Siyi Pan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Anna Valujskikh
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Naseer Sangwan
- Department of Cardiovascular and Metabolic Sciences, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; Center for Microbiome & Human Health, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Mohammed Dwidar
- Department of Cardiovascular and Metabolic Sciences, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; Center for Microbiome & Human Health, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Qiuhe Lu
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA.
| | - Thaddeus S Stappenbeck
- Department of Inflammation and Immunity, Learner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA.
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20
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Raso F, Liu S, Simpson MJ, Barton GM, Mayer CT, Acharya M, Muppidi JR, Marshak-Rothstein A, Reboldi A. Antigen receptor signaling and cell death resistance controls intestinal humoral response zonation. Immunity 2023; 56:2373-2387.e8. [PMID: 37714151 PMCID: PMC10591993 DOI: 10.1016/j.immuni.2023.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 05/24/2023] [Accepted: 08/21/2023] [Indexed: 09/17/2023]
Abstract
Immunoglobulin A (IgA) maintains commensal communities in the intestine while preventing dysbiosis. IgA generated against intestinal microbes assures the simultaneous binding to multiple, diverse commensal-derived antigens. However, the exact mechanisms by which B cells mount broadly reactive IgA to the gut microbiome remains elusive. Here, we have shown that IgA B cell receptor (BCR) is required for B cell fitness during the germinal center (GC) reaction in Peyer's patches (PPs) and for generation of gut-homing plasma cells (PCs). We demonstrate that IgA BCR drove heightened intracellular signaling in mouse and human B cells, and as a consequence, IgA+ B cells received stronger positive selection cues. Mechanistically, IgA BCR signaling offset Fas-mediated death, possibly rescuing low-affinity B cells to promote a broad humoral response to commensals. Our findings reveal an additional mechanism linking BCR signaling, B cell fate, and antibody production location, which have implications for how intestinal antigen recognition shapes humoral immunity.
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Affiliation(s)
- Fiona Raso
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Shuozhi Liu
- Seattle Children's Research Institute, Seattle, WA, USA
| | - Mikala J Simpson
- Experimental Immunology Branch, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Gregory M Barton
- Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Christian T Mayer
- Experimental Immunology Branch, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Mridu Acharya
- Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics, University of Washington, Seattle, WA, USA
| | - Jagan R Muppidi
- Lymphoid Malignancies Branch, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Ann Marshak-Rothstein
- Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Andrea Reboldi
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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21
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Frischbutter S, Durek P, Witkowski M, Angermair S, Treskatsch S, Maurer M, Radbruch A, Mashreghi MF. Serum TGF-β as a predictive biomarker for severe disease and fatality of COVID-19. Eur J Immunol 2023; 53:e2350433. [PMID: 37386908 DOI: 10.1002/eji.202350433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/01/2023]
Abstract
For targeted intervention in coronavirus disease 2019 (COVID-19), there is a high medical need for biomarkers that predict disease progression and severity in the first days after symptom onset. This study assessed the utility of early transforming growth factor β (TGF-β) serum levels in COVID-19 patients to predict disease severity, fatality, and response to dexamethasone therapy. Patients with severe COVID-19 had significantly higher TGF-β levels (416 pg/mL) as compared to patients with mild (165 pg/mL, p < 0.0001) or moderate COVID-19 (241 pg/mL; p < 0.0001). Receiver operating characteristics area under the curve values were 0.92 (95% confidence interval [CI] 0.85-0.99, cut-off: 255 pg/mL) for mild versus severe COVID-19, and 0.83 (95% CI 0.65-1.0, cut-off: 202 pg/mL) for moderate versus severe COVID-19. Patients who died of severe COVID-19 had significantly higher TGF-β levels (453 pg/mL) as compared to convalescent patients (344 pg/mL), and TGF-β levels predicted fatality (area under the curve: 0.75, 95% CI 0.53-0.96). TGF-β was significantly reduced in severely ill patients treated with dexamethasone (301 pg/mL) as compared to untreated patients (416 pg/mL; p < 0.05). Early TGF-β serum levels in COVID-19 patients predict, with high accuracy, disease severity, and fatality. In addition, TGF-β serves as a specific biomarker to assess response to dexamethasone treatment.
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Affiliation(s)
- Stefan Frischbutter
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Allergology, Campus Benjamin Franklin, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Pawel Durek
- Therapeutic Gene Regulation, Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Mario Witkowski
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Laboratory of Innate Immunity, Institute of Microbiology, Infectious Diseases and Immunology, Campus Benjamin Franklin, Berlin, Germany
- Mucosal and Developmental Immunology, Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Stefan Angermair
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Anesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Berlin, Germany
| | - Sascha Treskatsch
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Anesthesiology and Intensive Care Medicine, Campus Benjamin Franklin, Berlin, Germany
| | - Marcus Maurer
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Allergology, Campus Benjamin Franklin, Berlin, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, Berlin, Germany
| | - Andreas Radbruch
- Cell Biology, Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
| | - Mir-Farzin Mashreghi
- Therapeutic Gene Regulation, Deutsches Rheuma-Forschungszentrum (DRFZ), Institute of the Leibniz Association, Berlin, Germany
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22
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Zhu G, Jin L, Shen W, Zhao M, Liu N. Intratumor microbiota: Occult participants in the microenvironment of multiple myeloma. Biochim Biophys Acta Rev Cancer 2023; 1878:188959. [PMID: 37488050 DOI: 10.1016/j.bbcan.2023.188959] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/07/2023] [Accepted: 07/20/2023] [Indexed: 07/26/2023]
Abstract
More recently, microbiota was detected in several tumorous tissues including multiple myeloma (MM), but the roles of which is still under-studied as paucity of research on tumor biology. Moreover, we also detected the presence of microbiota in the bone marrow of patients with MM by 2bRAD-M sequencing technology, which is an incurable hematological malignancy characterized by accumulation of abnormal plasma cells in the bone marrow. However, the roles of intratumor microbiota in tumor disease remains poorly understood. In this review, we critically reviewed recent literature about microbiota in the tumorigenesis and progression of MM. Importantly, we proposed that the emergence of microbiota in the microenvironment of multiple myeloma may be attributed to microbial dysbiosis and impaired intestinal barrier, due to the increased prevalence of MM in patients with obesity and diabetes, of which the characteristic phenotype is gut microbial dysbiosis and impaired intestinal barrier. When the intestinal barrier is damaged, dysbiotic microbiota and their metabolites, as well as dysregulated immune cells, may participate in the reshaping of the local immune microenvironment, and play pivotal roles in the tumorigenesis and development of multiple myeloma, probably by migrating to the bone marrow microenvironment from intestine. We also discuss the emerging microbiological manipulation strategies to improve long-term outcomes of MM, as well as the prospective of the state-of-the-art techniques to advance our knowledge about the biological implication in the microbiome in MM.
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Affiliation(s)
- Gengjun Zhu
- Central Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Lifang Jin
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, China
| | - Weizhang Shen
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, China
| | - Meng Zhao
- Department of Oncology and Hematology, The Second Hospital of Jilin University, Changchun, China
| | - Ning Liu
- Central Laboratory, The Second Hospital of Jilin University, Changchun, China; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China.
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23
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Johnson-Hence CB, Gopalakrishna KP, Bodkin D, Coffey KE, Burr AH, Rahman S, Rai AT, Abbott DA, Sosa YA, Tometich JT, Das J, Hand TW. Stability and heterogeneity in the antimicrobiota reactivity of human milk-derived immunoglobulin A. J Exp Med 2023; 220:e20220839. [PMID: 37462916 PMCID: PMC10354535 DOI: 10.1084/jem.20220839] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 04/11/2023] [Accepted: 06/15/2023] [Indexed: 07/21/2023] Open
Abstract
Immunoglobulin A (IgA) is secreted into breast milk and is critical for both protecting against enteric pathogens and shaping the infant intestinal microbiota. The efficacy of breast milk-derived maternal IgA (BrmIgA) is dependent upon its specificity; however, heterogeneity in BrmIgA binding ability to the infant microbiota is not known. Using a flow cytometric array, we analyzed the reactivity of BrmIgA against bacteria common to the infant microbiota and discovered substantial heterogeneity between all donors, independent of preterm or term delivery. Surprisingly, we also observed intradonor variability in the BrmIgA response to closely related bacterial isolates. Conversely, longitudinal analysis showed that the antibacterial BrmIgA reactivity was relatively stable through time, even between sequential infants, indicating that mammary gland IgA responses are durable. Together, our study demonstrates that the antibacterial BrmIgA reactivity displays interindividual heterogeneity but intraindividual stability. These findings have important implications for how breast milk shapes the development of the preterm infant microbiota and protects against necrotizing enterocolitis.
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Affiliation(s)
- Chelseá B. Johnson-Hence
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Kathyayini P. Gopalakrishna
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Darren Bodkin
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kara E. Coffey
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Pediatrics, Division of Allergy and Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ansen H.P. Burr
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Syed Rahman
- Department of Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Systems Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ali T. Rai
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Darryl A. Abbott
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yelissa A. Sosa
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Justin T. Tometich
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jishnu Das
- Department of Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Center for Systems Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Timothy W. Hand
- Pediatrics Department, Infectious Disease Section, R.K. Mellon Institute for Pediatric Research, UPMC Children’s Hospital of Pittsburgh, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Immunology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
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24
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Brazzoli M, Piccioli D, Marchetti F. Challenges in development of vaccines directed toward antimicrobial resistant bacterial species. Hum Vaccin Immunother 2023; 19:2228669. [PMID: 37449650 DOI: 10.1080/21645515.2023.2228669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/05/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023] Open
Abstract
Antimicrobial resistance (AMR) is considered by WHO one of the top ten public health threats. New control strategies involving concerted actions of both public and private sectors need to be developed. Vaccines play a major role in controlling the spread of AMR pathogens by decreasing transmission and limiting the use of antibiotics, reducing at the end the selective pressure for the emergence of new resistant strains. In this review, by using as example some of the most serious AMR pathogens, we highlighted the major hurdles from a research and development point of view. New approaches to better understand the immunological mechanisms of response to both natural infections and vaccines that aimed to identify correlates of protection, together with the application of new technologies for vaccine design and delivery are discussed as potential solutions.
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Borbet TC, Pawline MB, Li J, Ho ML, Yin YS, Zhang X, Novikova E, Jackson K, Mullins BJ, Ruiz VE, Hines MJ, Zhang XS, Müller A, Koralov SB, Blaser MJ. Disruption of the early-life microbiota alters Peyer's patch development and germinal center formation in gastrointestinal-associated lymphoid tissue. iScience 2023; 26:106810. [PMID: 37235047 PMCID: PMC10206152 DOI: 10.1016/j.isci.2023.106810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 03/17/2023] [Accepted: 05/01/2023] [Indexed: 05/28/2023] Open
Abstract
During postnatal development, both the maturing microbiome and the host immune system are susceptible to environmental perturbations such as antibiotic use. The impact of timing in which antibiotic exposure occurs was investigated by treating mice from days 5-9 with amoxicillin or azithromycin, two of the most commonly prescribed medications in children. Both early-life antibiotic regimens disrupted Peyer's patch development and immune cell abundance, with a sustained decrease in germinal center formation and diminished intestinal immunoglobulin A (IgA) production. These effects were less pronounced in adult mice. Through comparative analysis of microbial taxa, Bifidobacterium longum abundance was found to be associated with germinal center frequency. When re-introduced to antibiotic-exposed mice, B. longum partially rescued the immunological deficits. These findings suggest that early-life antibiotic use affects the development of intestinal IgA-producing B cell functions and that probiotic strains could be used to restore normal development after antibiotic exposure.
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Affiliation(s)
- Timothy C. Borbet
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Miranda B. Pawline
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Jackie Li
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Melody L. Ho
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Yue Sandra Yin
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
- Center for Advanced Biotechnology and Medicine, Rutgers University, New Brunswick, NJ 08854, USA
| | - Xiaozhou Zhang
- Institute of Molecular Cancer Research, University of Zurich, Zurich 8057, Switzerland
| | - Ekaterina Novikova
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Katelyn Jackson
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
- Department of Biological Sciences, Mississippi State University, Mississippi State, MS 39762, USA
| | - Briana J. Mullins
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Victoria E. Ruiz
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Marcus J. Hines
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Xue-Song Zhang
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
- Center for Advanced Biotechnology and Medicine, Rutgers University, New Brunswick, NJ 08854, USA
| | - Anne Müller
- Institute of Molecular Cancer Research, University of Zurich, Zurich 8057, Switzerland
| | - Sergei B. Koralov
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Martin J. Blaser
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
- Center for Advanced Biotechnology and Medicine, Rutgers University, New Brunswick, NJ 08854, USA
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26
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Sun M, Ju J, Xu H, Wang Y. Intestinal fungi and antifungal secretory immunoglobulin A in Crohn's disease. Front Immunol 2023; 14:1177504. [PMID: 37359518 PMCID: PMC10285161 DOI: 10.3389/fimmu.2023.1177504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/30/2023] [Indexed: 06/28/2023] Open
Abstract
The human gastrointestinal tract harbors trillions of commensal microorganisms. Emerging evidence points to a possible link between intestinal fungal dysbiosis and antifungal mucosal immunity in inflammatory bowel disease, especially in Crohn's disease (CD). As a protective factor for the gut mucosa, secretory immunoglobulin A (SIgA) prevents bacteria from invading the intestinal epithelium and maintains a healthy microbiota community. In recent years, the roles of antifungal SIgA antibodies in mucosal immunity, including the regulation of intestinal immunity binding to hyphae-associated virulence factors, are becoming increasingly recognized. Here we review the current knowledge on intestinal fungal dysbiosis and antifungal mucosal immunity in healthy individuals and in patients with CD, discuss the factors governing antifungal SIgA responses in the intestinal mucosa in the latter group, and highlight potential antifungal vaccines targeting SIgA to prevent CD.
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27
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Huang Z, Chang Y, Hao K, Tan Y, Ding L, Wang L, Wang Z, Pan Z, Gao H, Wu J, Zhu Y, Gao Q, Bi Y, Yang R. Immunomagnetic-bead enriched culturomics (IMBEC) for isolating pathobionts from feces of colorectal cancer patients. IMETA 2023; 2:e100. [PMID: 38868439 PMCID: PMC10989793 DOI: 10.1002/imt2.100] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/05/2023] [Accepted: 03/06/2023] [Indexed: 06/14/2024]
Abstract
Culturomics employs various cultivating conditions to obtain different types of bacteria and new species. However, current culturomics lacks a highly efficient method for isolating specific pathobionts. Immunomagnetic bead technology, which uses magnetic beads conjugated with antibodies for capturing the antigen to realize enrichment of the targets, has been employed as an alternative method. In this study, we developed a novel method, immunomagnetic bead-enriched culturomics (IMBEC), in which magnetic bead-conjugated antibodies purified from the fecal samples of patients with colorectal cancer (CRC) were used to enrich and isolate potential pathobionts. A protocol for enriching potential pathobionts via immunomagnetic capture was developed by optimizing the concentrations of coupling reagents, NaCl, and detergent. The efficacy of pathobiont enrichment was compared between antibody-coated magnetic beads (antibody group) and nonconjugated blank magnetic beads (blank group). To determine the proinflammatory potential of isolates from both groups, we investigated their ability to induce cytokine production in THP-1 macrophages. This protocol was employed for isolating bacteria from 10 fecal samples of patients with CRC, which were simultaneously compared with those isolated from the blank group. A total of 209 bacterial species were isolated from both groups, including 173 from the antibody group, 160 from the blank group, and 124 from both groups. Bacteria isolated from the antibody group produced more proinflammatory cytokines than those isolated from the blank group. IMBEC is a promising method for relatively specific isolation of potential pathobionts for a particular disease of interest.
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Affiliation(s)
- Ziran Huang
- The Key and Characteristic Laboratory of Modern Pathogen Biology, School of Basic Medical SciencesGuizhou Medical UniversityGuiyangChina
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Yuxiao Chang
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Kun Hao
- Beijing Key Laboratory of POCT for Bioemergency and Clinic (BZ0329)BeijingChina
| | - Yafang Tan
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
- Beijing Key Laboratory of POCT for Bioemergency and Clinic (BZ0329)BeijingChina
| | - Lei Ding
- Beijing Shijitan HospitalCapital Medical UniversityBeijingChina
| | - Likun Wang
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Zhen Wang
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Zhiyuan Pan
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
| | - Hong Gao
- Beijing Shijitan HospitalCapital Medical UniversityBeijingChina
| | - Jiahong Wu
- The Key and Characteristic Laboratory of Modern Pathogen Biology, School of Basic Medical SciencesGuizhou Medical UniversityGuiyangChina
| | - Yubing Zhu
- Beijing Shijitan HospitalCapital Medical UniversityBeijingChina
| | - Qi Gao
- Beijing Key Laboratory of POCT for Bioemergency and Clinic (BZ0329)BeijingChina
| | - Yujing Bi
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
- Beijing Key Laboratory of POCT for Bioemergency and Clinic (BZ0329)BeijingChina
| | - Ruifu Yang
- State Key Laboratory of Pathogen and BiosecurityBeijing Institute of Microbiology and EpidemiologyBeijingChina
- Beijing Key Laboratory of POCT for Bioemergency and Clinic (BZ0329)BeijingChina
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28
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Howley K, Berthelette A, Ceglia S, Kang J, Reboldi A. Embryonic type 3 innate lymphoid cells sense maternal dietary cholesterol to control local Peyer's patch development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.19.533339. [PMID: 36993524 PMCID: PMC10055282 DOI: 10.1101/2023.03.19.533339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Lymphoid tissue inducer (LTi) cells develop during intrauterine life and rely on developmental programs to initiate the organogenesis of secondary lymphoid organs (SLOs). This evolutionary conserved process endows the fetus with the ability to orchestrate the immune response after birth and to react to the triggers present in the environment. While it is established that LTi function can be shaped by maternal-derived cues and is critical to prepare the neonate with a functional scaffold to mount immune response, the cellular mechanisms that control anatomically distinct SLO organogenesis remain unclear. We discovered that LTi cells forming Peyer's patches, gut-specific SLOs, require the coordinated action of two migratory G protein coupled receptors (GPCR) GPR183 and CCR6. These two GPCRs are uniformly expressed on LTi cells across SLOs, but their deficiency specifically impacts Peyer's patch formation, even when restricted to fetal window. The unique CCR6 ligand is CCL20, while the ligand for GPR183 is the cholesterol metabolite 7α,25-Dihydroxycholesterol (7α,25-HC), whose production is controlled by the enzyme cholesterol 25-hydroxylase (CH25H). We identified a fetal stromal cell subset that expresses CH25H and attracts LTi cells in the nascent Peyer's patch anlagen. GPR183 ligand concentration can be modulated by the cholesterol content in the maternal diet and impacts LTi cell maturation in vitro and in vivo, highlighting a link between maternal nutrients and intestinal SLO organogenesis. Our findings revealed that in the fetal intestine, cholesterol metabolite sensing by GPR183 in LTi cells for Peyer's patch formation is dominant in the duodenum, the site of cholesterol absorption in the adult. This anatomic requirement suggests that embryonic, long-lived non-hematopoietic cells might exploit adult metabolic functions to ensure highly specialized SLO development in utero.
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Affiliation(s)
- Kelsey Howley
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA
| | - Alyssa Berthelette
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA
| | - Simona Ceglia
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA
| | - Joonsoo Kang
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA
| | - Andrea Reboldi
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA
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Johnson-Hence CB, Gopalakrishna KP, Bodkin D, Coffey KE, Burr AH, Rahman S, Rai AT, Abbott DA, Sosa YA, Tometich JT, Das J, Hand TW. Stability and heterogeneity in the anti-microbiota reactivity of human milk-derived Immunoglobulin A. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.16.532940. [PMID: 36993366 PMCID: PMC10055037 DOI: 10.1101/2023.03.16.532940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
UNLABELLED Immunoglobulin A (IgA) is secreted into breast milk and is critical to both protecting against enteric pathogens and shaping the infant intestinal microbiota. The efficacy of breast milk-derived maternal IgA (BrmIgA) is dependent upon its specificity, however heterogeneity in BrmIgA binding ability to the infant microbiota is not known. Using a flow cytometric array, we analyzed the reactivity of BrmIgA against bacteria common to the infant microbiota and discovered substantial heterogeneity between all donors, independent of preterm or term delivery. We also observed intra-donor variability in the BrmIgA response to closely related bacterial isolates. Conversely, longitudinal analysis showed that the anti-bacterial BrmIgA reactivity was relatively stable through time, even between sequential infants, indicating that mammary gland IgA responses are durable. Together, our study demonstrates that the anti-bacterial BrmIgA reactivity displays inter-individual heterogeneity but intra-individual stability. These findings have important implications for how breast milk shapes the development of the infant microbiota and protects against Necrotizing Enterocolitis. SUMMARY We analyze the ability of breast milk-derived Immunoglobulin A (IgA) antibodies to bind the infant intestinal microbiota. We discover that each mother secretes into their breast milk a distinct set of IgA antibodies that are stably maintained over time.
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Affiliation(s)
- Chelseá B. Johnson-Hence
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, University of Texas Southwestern Medical Center
| | - Kathyayini P. Gopalakrishna
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
| | - Darren Bodkin
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
| | - Kara E. Coffey
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
- Department of Pediatrics, Division of Allergy and Immunology, University of Pittsburgh School of Medicine
| | - Ansen H.P. Burr
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
- Department of Immunology, University of Pittsburgh School of Medicine
| | - Syed Rahman
- Department of Immunology, University of Pittsburgh School of Medicine
- Center for Systems Immunology, University of Pittsburgh School of Medicine
| | - Ali T. Rai
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
| | - Darryl A. Abbott
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
| | - Yelissa A. Sosa
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
| | - Justin T. Tometich
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
| | - Jishnu Das
- Department of Immunology, University of Pittsburgh School of Medicine
- Center for Systems Immunology, University of Pittsburgh School of Medicine
| | - Timothy W. Hand
- R.K. Mellon Institute for Pediatric Research, Pediatrics Department, Infectious Disease Section, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh PA, 15224
- Department of Immunology, University of Pittsburgh School of Medicine
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30
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Ceglia S, Berthelette A, Howley K, Li Y, Mortzfeld B, Bhattarai SK, Yiew NKH, Xu Y, Brink R, Cyster JG, Hooper LV, Randolph GJ, Bucci V, Reboldi A. An epithelial cell-derived metabolite tunes immunoglobulin A secretion by gut-resident plasma cells. Nat Immunol 2023; 24:531-544. [PMID: 36658240 PMCID: PMC10243503 DOI: 10.1038/s41590-022-01413-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 12/14/2022] [Indexed: 01/21/2023]
Abstract
Immunoglobulin A (IgA) secretion by plasma cells, terminally differentiated B cells residing in the intestinal lamina propria, assures microbiome homeostasis and protects the host against enteric infections. Exposure to diet-derived and commensal-derived signals provides immune cells with organizing cues that instruct their effector function and dynamically shape intestinal immune responses at the mucosal barrier. Recent data have described metabolic and microbial inputs controlling T cell and innate lymphoid cell activation in the gut; however, whether IgA-secreting lamina propria plasma cells are tuned by local stimuli is completely unknown. Although antibody secretion is considered to be imprinted during B cell differentiation and therefore largely unaffected by environmental changes, a rapid modulation of IgA levels in response to intestinal fluctuations might be beneficial to the host. In the present study, we showed that dietary cholesterol absorption and commensal recognition by duodenal intestinal epithelial cells lead to the production of oxysterols, evolutionarily conserved lipids with immunomodulatory functions. Using conditional cholesterol 25-hydroxylase deleter mouse line we demonstrated that 7α,25-dihydroxycholesterol from epithelial cells is critical to restrain IgA secretion against commensal- and pathogen-derived antigens in the gut. Intestinal plasma cells sense oxysterols via the chemoattractant receptor GPR183 and couple their tissue positioning with IgA secretion. Our findings revealed a new mechanism linking dietary cholesterol and humoral immune responses centered around plasma cell localization for efficient mucosal protection.
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Affiliation(s)
- Simona Ceglia
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Alyssa Berthelette
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Kelsey Howley
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Yun Li
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Benedikt Mortzfeld
- Department of Microbiology and Physiological systems, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Shakti K Bhattarai
- Department of Microbiology and Physiological systems, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Nicole K H Yiew
- Department of Pathology and Immunology, Washington University Medical School, St. Louis, MO, USA
| | - Ying Xu
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Robert Brink
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, New South Wales, Australia
| | - Jason G Cyster
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA
| | - Lora V Hooper
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gwendalyn J Randolph
- Department of Pathology and Immunology, Washington University Medical School, St. Louis, MO, USA
| | - Vanni Bucci
- Department of Microbiology and Physiological systems, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Andrea Reboldi
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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31
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Seixas AMM, Sousa SA, Leitão JH. Antibody-Based Immunotherapies as a Tool for Tackling Multidrug-Resistant Bacterial Infections. Vaccines (Basel) 2022; 10:1789. [PMID: 36366297 PMCID: PMC9695245 DOI: 10.3390/vaccines10111789] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/20/2022] [Accepted: 10/20/2022] [Indexed: 07/27/2023] Open
Abstract
The discovery of antimicrobials is an outstanding achievement of mankind that led to the development of modern medicine. However, increasing antimicrobial resistance observed worldwide is rendering commercially available antimicrobials ineffective. This problem results from the bacterial ability to adapt to selective pressure, leading to the development or acquisition of multiple types of resistance mechanisms that can severely affect the efficacy of antimicrobials. The misuse, over-prescription, and poor treatment adherence by patients are factors strongly aggravating this issue, with an epidemic of infections untreatable by first-line therapies occurring over decades. Alternatives are required to tackle this problem, and immunotherapies are emerging as pathogen-specific and nonresistance-generating alternatives to antimicrobials. In this work, four types of antibody formats and their potential for the development of antibody-based immunotherapies against bacteria are discussed. These antibody isotypes include conventional mammalian polyclonal antibodies that are used for the neutralization of toxins; conventional mammalian monoclonal antibodies that currently have 100 IgG mAbs approved for therapeutic use; immunoglobulin Y found in birds and an excellent source of high-quality polyclonal antibodies able to be purified noninvasively from egg yolks; and single domain antibodies (also known as nanobodies), a recently discovered antibody format (found in camelids and nurse sharks) that allows for a low-cost synthesis in microbial systems, access to hidden or hard-to-reach epitopes, and exhibits a high modularity for the development of complex structures.
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Affiliation(s)
- António M. M. Seixas
- Department of Bioengineering, IBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Sílvia A. Sousa
- Department of Bioengineering, IBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Jorge H. Leitão
- Department of Bioengineering, IBB—Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Associate Laboratory, i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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32
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Chi X, Gu J, Ma X. Characteristics and Roles of T Follicular Helper Cells in SARS-CoV-2 Vaccine Response. Vaccines (Basel) 2022; 10:vaccines10101623. [PMID: 36298488 PMCID: PMC9611968 DOI: 10.3390/vaccines10101623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination is critical to controlling the coronavirus disease 2019 (COVID-19) pandemic. However, a weak response to the vaccine and insufficient persistence of specific antibodies may threaten the global impact of mass vaccination campaigns. This study summarizes the internal factors of the body that affect the effectiveness of the SARS-CoV-2 vaccine. T follicular helper (Tfh) cells support germinal center B cells to produce vaccine-specific immunoglobulins. A reduction in the Tfh cell number and a shift in the subset phenotypes caused by multiple factors may impair the production and persistence of high-affinity antibodies. Besides efficacy differences caused by the different types of vaccines, the factors that affect vaccine effectiveness by intervening in the Tfh cell response also include age-related defects, the polarity of the body microenvironment, repeated immunization, immunodeficiency, and immunosuppressive treatments. Assessing the phenotypic distribution and activation levels of Tfh cell subsets after vaccination is helpful in predicting vaccine responses and may identify potential targets for improving vaccine effectiveness.
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Affiliation(s)
- Xuyang Chi
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, China
| | - Jia Gu
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, China
| | - Xiaoxue Ma
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, China
- Department of Microbiology & Immunology and Pediatrics, Dalhousie University, and Canadian Center for Vaccinology, IWK Health Centre, Halifax, NS B3K 6R8, Canada
- Correspondence: ; Tel.: +86-024-83282527
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33
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Wang K, Chen D, Yu B, He J, Mao X, Huang Z, Yan H, Wu A, Luo Y, Zheng P, Yu J, Luo J. Eugenol alleviates transmissible gastroenteritis virus-induced intestinal epithelial injury by regulating NF-κB signaling pathway. Front Immunol 2022; 13:921613. [PMID: 36052062 PMCID: PMC9427193 DOI: 10.3389/fimmu.2022.921613] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/29/2022] [Indexed: 01/13/2023] Open
Abstract
Increasing evidence supports the ability of eugenol to maintain intestinal barrier integrity and anti-inflammatory in vitro and in vivo; however, whether eugenol alleviates virus-mediated intestinal barrier damage and inflammation remains a mystery. Transmissible gastroenteritis virus (TGEV), a coronavirus, is one of the main causative agents of diarrhea in piglets and significantly impacts the global swine industry. Here, we found that eugenol could alleviate TGEV-induced intestinal functional impairment and inflammatory responses in piglets. Our results indicated that eugenol improved feed efficiency in TGEV-infected piglets. Eugenol not only increased serum immunoglobulin concentration (IgG) but also significantly decreased serum inflammatory cytokine concentration (TNF-α) in TGEV-infected piglets. In addition, eugenol also significantly decreased the expression of NF-κB mRNA and the phosphorylation level of NF-κB P65 protein in the jejunum mucosa of TGEV-infected piglets. Eugenol increased villus height and the ratio of villus height to crypt depth in the jejunum and ileum, and decreased serum D-lactic acid levels. Importantly, eugenol increased tight junction protein (ZO-1) and mRNA expression levels of nutrient transporter-related genes (GluT-2 and CaT-1) in the jejunum mucosa of TGEV-infected piglets. Meanwhile, compared with TGEV-infected IPEC-J2 cells, treatment with eugenol reduced the cell cytopathic effect, attenuated the inflammatory response. Interestingly, eugenol did not increase the expression of ZO-1 and Occludin in IPEC-J2 cells. However, western blot and immunofluorescence results showed that eugenol restored TGEV-induced down-regulation of ZO-1 and Occludin, while BAY11-7082 (The NF-κB specific inhibitor) enhanced the regulatory ability of eugenol. Our findings demonstrated that eugenol attenuated TGEV-induced intestinal injury by increasing the expression of ZO-1 and Occludin, which may be related to the inhibition of NF-κB signaling pathway. Eugenol may offer some therapeutic opportunities for coronavirus-related diseases.
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Affiliation(s)
- Kang Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Aimin Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
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Dietary protein increases T-cell-independent sIgA production through changes in gut microbiota-derived extracellular vesicles. Nat Commun 2022; 13:4336. [PMID: 35896537 PMCID: PMC9329401 DOI: 10.1038/s41467-022-31761-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 06/30/2022] [Indexed: 01/04/2023] Open
Abstract
Secretory IgA is a key mucosal component ensuring host-microbiota mutualism. Here we use nutritional geometry modelling in mice fed 10 different macronutrient-defined, isocaloric diets, and identify dietary protein as the major driver of secretory IgA production. Protein-driven secretory IgA induction is not mediated by T-cell-dependent pathways or changes in gut microbiota composition. Instead, the microbiota of high protein fed mice produces significantly higher quantities of extracellular vesicles, compared to those of mice fed high-carbohydrate or high-fat diets. These extracellular vesicles activate Toll-like receptor 4 to increase the epithelial expression of IgA-inducing cytokine, APRIL, B cell chemokine, CCL28, and the IgA transporter, PIGR. We show that succinate, produced in high concentrations by microbiota of high protein fed animals, increases generation of reactive oxygen species by bacteria, which in turn promotes extracellular vesicles production. Here we establish a link between dietary macronutrient composition, gut microbial extracellular vesicles release and host secretory IgA response.
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35
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Yang C, Chen-Liaw A, Spindler MP, Tortorella D, Moran TM, Cerutti A, Faith JJ. Immunoglobulin A antibody composition is sculpted to bind the self gut microbiome. Sci Immunol 2022; 7:eabg3208. [PMID: 35857580 PMCID: PMC9421563 DOI: 10.1126/sciimmunol.abg3208] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Despite being the most abundantly secreted immunoglobulin isotype, the pattern of reactivity of immunoglobulin A (IgA) antibodies toward each individual's own gut commensal bacteria still remains elusive. By colonizing germ-free mice with defined commensal bacteria, we found that the binding specificity of bulk fecal and serum IgA toward resident gut bacteria resolves well at the species level and has modest strain-level specificity. IgA hybridomas generated from lamina propria B cells of gnotobiotic mice showed that most IgA clones recognized a single bacterial species, whereas a small portion displayed cross-reactivity. Orally administered hybridoma-produced IgAs still retained bacterial antigen binding capability, implying the potential for a new class of therapeutic antibodies. Species-specific IgAs had a range of strain specificities. Given the distinctive bacterial species and strain composition found in each individual's gut, our findings suggest the IgA antibody repertoire is shaped uniquely to bind "self" gut bacteria.
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Affiliation(s)
- Chao Yang
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Alice Chen-Liaw
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Matthew P. Spindler
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Domenico Tortorella
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Thomas M. Moran
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Center for Therapeutic Antibody Development, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Andrea Cerutti
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Program for Inflammatory and Cardiovascular Disorders, Institut Hospital del Mar d’Investigacions Mèdiques (IMIM), Barcelona 08003, Spain
- Catalan Institute for Research and Advanced Studies (ICREA), Barcelona 08003, Spain
| | - Jeremiah J. Faith
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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36
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Humoral immunity at the brain borders in homeostasis. Curr Opin Immunol 2022; 76:102188. [DOI: 10.1016/j.coi.2022.102188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/18/2022]
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37
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Landscape of the RBD-specific IgG, IgM, and IgA responses triggered by the inactivated virus vaccine against the Omicron variant. Cell Discov 2022; 8:15. [PMID: 35169145 PMCID: PMC8847627 DOI: 10.1038/s41421-022-00380-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 01/25/2022] [Indexed: 11/25/2022] Open
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38
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Fu Y, Wang Z, Yu B, Lin Y, Huang E, Liu R, Zhao C, Lu M, Xu W, Liu H, Liu Y, Wang L, Chu Y. Intestinal CD11b + B Cells Ameliorate Colitis by Secreting Immunoglobulin A. Front Immunol 2021; 12:697725. [PMID: 34804004 PMCID: PMC8595478 DOI: 10.3389/fimmu.2021.697725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 10/14/2021] [Indexed: 12/12/2022] Open
Abstract
The intestinal mucosal immune environment requires multiple immune cells to maintain homeostasis. Although intestinal B cells are among the most important immune cells, little is known about the mechanism that they employ to regulate immune homeostasis. In this study, we found that CD11b+ B cells significantly accumulated in the gut lamina propria and Peyer's patches in dextran sulfate sodium-induced colitis mouse models and patients with ulcerative colitis. Adoptive transfer of CD11b+ B cells, but not CD11b-/- B cells, effectively ameliorated colitis and exhibited therapeutic effects. Furthermore, CD11b+ B cells were found to produce higher levels of IgA than CD11b- B cells. CD11b deficiency in B cells dampened IgA production, resulting in the loss of their ability to ameliorate colitis. Mechanistically, CD11b+ B cells expressed abundant TGF-β and TGF-β receptor II, as well as highly activate phosphorylated Smad2/3 signaling pathway, consequently promoting the class switch to IgA. Collectively, our findings demonstrate that CD11b+ B cells are essential intestinal suppressive immune cells and the primary source of intestinal IgA, which plays an indispensable role in maintaining intestinal homeostasis.
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Affiliation(s)
- Ying Fu
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Zhiming Wang
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Baichao Yu
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yuli Lin
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Enyu Huang
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Department of Pathology, The University of Hong Kong, Hong Kong, Hong Kong, SAR China
| | - Ronghua Liu
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Chujun Zhao
- Department of Biomedical Engineering, Columbia University, New York, NY, United States
| | - Mingfang Lu
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Wei Xu
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Hongchun Liu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yongzhong Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Luman Wang
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Department of Endocrinology and Metabolism, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Yiwei Chu
- Department of Immunology, School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Biotherapy Research Center, Fudan University, Shanghai, China
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39
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The impact of the Th17:Treg axis on the IgA-Biome across the glycemic spectrum. PLoS One 2021; 16:e0258812. [PMID: 34669745 PMCID: PMC8528330 DOI: 10.1371/journal.pone.0258812] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 10/05/2021] [Indexed: 11/24/2022] Open
Abstract
Secretory IgA (SIgA) is released into mucosal surfaces where its function extends beyond that of host defense to include the shaping of resident microbial communities by mediating exclusion/inclusion of respective microbes and regulating bacterial gene expression. In this capacity, SIgA acts as the fulcrum on which host immunity and the health of the microbiota are balanced. We recently completed an analysis of the gut and salivary IgA-Biomes (16S rDNA sequencing of SIgA-coated/uncoated bacteria) in Mexican-American adults that identified IgA-Biome differences across the glycemic spectrum. As Th17:Treg ratio imbalances are associated with gut microbiome dysbiosis and chronic inflammatory conditions such as type 2 diabetes, the present study extends our prior work by examining the impact of Th17:Treg ratios (pro-inflammatory:anti-inflammatory T-cell ratios) and the SIgA response (Th17:Treg-SIgA axis) in shaping microbial communities. Examining the impact of Th17:Treg ratios (determined by epigenetic qPCR lymphocyte subset quantification) on the IgA-Biome across diabetes phenotypes identified a proportional relationship between Th17:Treg ratios and alpha diversity in the stool IgA-Biome of those with dysglycemia, significant changes in community composition of the stool and salivary microbiomes across glycemic profiles, and genera preferentially abundant by T-cell inflammatory phenotype. This is the first study to associate epigenetically quantified Th17:Treg ratios with both the larger and SIgA-fractionated microbiome, assess these associations in the context of a chronic inflammatory disease, and offers a novel frame through which to evaluate mucosal microbiomes in the context of host responses and inflammation.
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Trindade BC, Ceglia S, Berthelette A, Raso F, Howley K, Muppidi JR, Reboldi A. The cholesterol metabolite 25-hydroxycholesterol restrains the transcriptional regulator SREBP2 and limits intestinal IgA plasma cell differentiation. Immunity 2021; 54:2273-2287.e6. [PMID: 34644558 DOI: 10.1016/j.immuni.2021.09.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 05/10/2021] [Accepted: 09/08/2021] [Indexed: 12/24/2022]
Abstract
Diets high in cholesterol alter intestinal immunity. Here, we examined how the cholesterol metabolite 25-hydroxycholesterol (25-HC) impacts the intestinal B cell response. Mice lacking cholesterol 25-hydroxylase (CH25H), the enzyme generating 25-HC, had higher frequencies of immunoglobulin A (IgA)-secreting antigen-specific B cells upon immunization or infection. 25-HC did not affect class-switch recombination but rather restrained plasma cell (PC) differentiation. 25-HC was produced by follicular dendritic cells and increased in response to dietary cholesterol. Mechanistically, 25-HC restricted activation of the sterol-sensing transcription factor SREBP2, thereby regulating B cell cholesterol biosynthesis. Ectopic expression of SREBP2 in germinal center B cells induced rapid PC differentiation, whereas SREBP2 deficiency reduced PC output in vitro and in vivo. High-cholesterol diet impaired, whereas Ch25h deficiency enhanced, the IgA response against Salmonella and the resulting protection from systemic bacterial dissemination. Thus, a 25-HC-SREBP2 axis shapes the humoral response at the intestinal barrier, providing insight into the effect of high dietary cholesterol in intestinal immunity.
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Affiliation(s)
- Bruno C Trindade
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Simona Ceglia
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Alyssa Berthelette
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Fiona Raso
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Kelsey Howley
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Jagan R Muppidi
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Andrea Reboldi
- Department of Pathology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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Abokor AA, McDaniel GH, Golonka RM, Campbell C, Brahmandam S, Yeoh BS, Joe B, Vijay-Kumar M, Saha P. Immunoglobulin A, an Active Liaison for Host-Microbiota Homeostasis. Microorganisms 2021; 9:2117. [PMID: 34683438 PMCID: PMC8539215 DOI: 10.3390/microorganisms9102117] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 12/12/2022] Open
Abstract
Mucosal surfaces in the gastrointestinal tract are continually exposed to native, commensal antigens and susceptible to foreign, infectious antigens. Immunoglobulin A (IgA) provides dual humoral responses that create a symbiotic environment for the resident gut microbiota and prevent the invasion of enteric pathogens. This review features recent immunological and microbial studies that elucidate the underlying IgA and microbiota-dependent mechanisms for mutualism at physiological conditions. IgA derailment and concurrent microbiota instability in pathological diseases are also discussed in detail. Highlights of this review underscore that the source of IgA and its structural form can dictate microbiota reactivity to sustain a diverse niche where both host and bacteria benefit. Other important studies emphasize IgA insufficiency can result in the bloom of opportunistic pathogens that encroach the intestinal epithelia and disseminate into circulation. The continual growth of knowledge in these subjects can lead to the development of therapeutics targeting IgA and/or the microbiota to treat life threatening diseases.
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Affiliation(s)
- Ahmed A. Abokor
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; (A.A.A.); (R.M.G.); (B.S.Y.); (B.J.); (M.V.-K.)
| | - Grant H. McDaniel
- College of Medicine, University of Toledo, Toledo, OH 43614, USA; (G.H.M.); (C.C.); (S.B.)
| | - Rachel M. Golonka
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; (A.A.A.); (R.M.G.); (B.S.Y.); (B.J.); (M.V.-K.)
| | - Connor Campbell
- College of Medicine, University of Toledo, Toledo, OH 43614, USA; (G.H.M.); (C.C.); (S.B.)
| | - Sreya Brahmandam
- College of Medicine, University of Toledo, Toledo, OH 43614, USA; (G.H.M.); (C.C.); (S.B.)
| | - Beng San Yeoh
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; (A.A.A.); (R.M.G.); (B.S.Y.); (B.J.); (M.V.-K.)
| | - Bina Joe
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; (A.A.A.); (R.M.G.); (B.S.Y.); (B.J.); (M.V.-K.)
| | - Matam Vijay-Kumar
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; (A.A.A.); (R.M.G.); (B.S.Y.); (B.J.); (M.V.-K.)
| | - Piu Saha
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; (A.A.A.); (R.M.G.); (B.S.Y.); (B.J.); (M.V.-K.)
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42
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Behringer V, Müller-Klein N, Strube C, Schülke O, Heistermann M, Ostner J. Responsiveness of fecal immunoglobulin A to HPA-axis activation limits its use for mucosal immunity assessment. Am J Primatol 2021; 83:e23329. [PMID: 34554596 DOI: 10.1002/ajp.23329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 11/11/2022]
Abstract
The assessment of mucosal immunity as a component of animal health is an important aspect for the understanding of variation in host immunity, and its tradeoff against other life-history traits. We investigated immunoglobulin A (IgA), the major type of antibody associated with mucosal immunity, in relation to changes in parasitic burden following anthelminthic treatment in noninvasively collected fecal samples in a semi-free ranging group of Barbary macaques (Macaca sylvanus). We measured IgA in 340 fecal samples of fourteen females and nine males. As IgA has been found to be responsive to stressors, we also related fecal IgA (fIgA) levels to fecal glucocorticoid metabolites (fGCM) measured in the same samples as part of a previous study. We found a high variability within and between individual fIgA levels over time. Running generalized additive mixed models, we found that fIgA levels were higher in males than in females, but did not change in response to the anthelmintic treatment and the resulting reduction in worm burden. Instead, fIgA level changes were significantly correlated to changes in fGCM levels. Our findings indicate that due to the strong responsiveness of fIgA to HPA-axis activity, the measurement of fIgA may have certain limitations with respect to reflecting gastrointestinal parasitic burden. Moreover, the responsiveness of fIgA to stressors interferes with the interpretation of IgA levels in fecal samples as a measure of mucosal immunity, at least in our study population of the Barbary macaques.
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Affiliation(s)
- Verena Behringer
- Endocrinology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
| | - Nadine Müller-Klein
- Institute for Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany.,Research Group Social Evolution in Primates, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
| | - Christina Strube
- Institute for Parasitology, Centre for Infection Medicine, University of Veterinary Medicine Hannover, Hanover, Germany
| | - Oliver Schülke
- Research Group Social Evolution in Primates, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany.,Department of Behavioral Ecology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Göttingen, Germany.,Leibniz ScienceCampus Primate Cognition, Göttingen, Germany
| | - Michael Heistermann
- Endocrinology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany
| | - Julia Ostner
- Research Group Social Evolution in Primates, German Primate Center, Leibniz Institute for Primate Research, Göttingen, Germany.,Department of Behavioral Ecology, Johann-Friedrich-Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Göttingen, Germany.,Leibniz ScienceCampus Primate Cognition, Göttingen, Germany
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43
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Poholek AC. Tissue-Specific Contributions to Control of T Cell Immunity. Immunohorizons 2021; 5:410-423. [PMID: 34103371 PMCID: PMC10876086 DOI: 10.4049/immunohorizons.2000103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/17/2021] [Indexed: 11/19/2022] Open
Abstract
T cells are critical for orchestrating appropriate adaptive immune responses and maintaining homeostasis in the face of persistent nonpathogenic Ags. T cell function is controlled in part by environmental signals received upon activation and derived from the tissue environment in which Ag is encountered. Indeed, tissue-specific environments play important roles in controlling the T cell response to Ag, and recent evidence suggests that tissue draining lymph nodes can mirror those local differences. Thus, tissue-specific immunity may begin at priming in secondary lymph nodes, where local signals have an important role in T cell fate. In this study, we discuss the tissue-specific signals that may impact T cell differentiation and function, including the microbiome, metabolism, and tissue-specific innate cell imprinting. We argue that these individual contributions create tissue-specific niches that likely play important roles in T cell differentiation and function controlling the outcome of the response to Ags.
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Affiliation(s)
- Amanda C Poholek
- Division of Pediatric Rheumatology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA; and Department of Immunology, University of Pittsburgh, Pittsburgh, PA
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