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McKenzie CI, Varese N, Aui PM, Reinwald S, Wines BD, Hogarth PM, Thien F, Hew M, Rolland JM, O'Hehir RE, van Zelm MC. RNA sequencing of single allergen-specific memory B cells after grass pollen immunotherapy: Two unique cell fates and CD29 as a biomarker for treatment effect. Allergy 2023; 78:822-835. [PMID: 36153670 PMCID: PMC10952829 DOI: 10.1111/all.15529] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Sublingual immunotherapy (SLIT) for grass pollen allergy can modify the natural history of allergic rhinitis and is associated with increased allergen-specific IgG4 . IgG4 competitively inhibits functional IgE on the surface of effector cells, such as mast cells and basophils, from binding to allergens. To further understand the important role memory B-cell (Bmem) responses play in mediating the beneficial effects of SLIT, we assessed changes in allergen-specific Bmem subsets induced by SLIT for grass pollen allergy. METHODS Blood samples were collected twice outside the pollen season from twenty-seven patients with sensitization to ryegrass pollen (RGP; Lolium perenne) and seasonal rhinoconjunctivitis. Thirteen received 4-month pre-seasonal SLIT for grass pollen allergy, and 14 received standard pharmacotherapy only. Single-cell RNA sequencing was performed on FACS-purified Lol p 1-specific Bmem before and after SLIT from four patients, and significant genes were validated by flow cytometry on the total cohort. RESULTS Four months of SLIT increased RGP-specific IgE and IgG4 in serum and induced two Lol p 1-specific Bmem subsets with unique transcriptional profiles. Both subsets had upregulated expression of beta 1 integrin ITGB1 (CD29), whereas IGHE (IgE), IGHG4 (IgG4 ), FCER2 (CD23), and IL13RA1 were upregulated in one subset. There was an increase in the proportion of Lol p 1+ Bmem expressing surface IgG4 , CD23, and CD29 after SLIT. CONCLUSIONS A clinically successful 4 months course of SLIT for grass pollen allergy induces two transcriptionally unique Bmem fates. Associated changes in surface-expressed proteins on these Bmem subsets can be used as early biomarkers for treatment effects.
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Affiliation(s)
- Craig I. McKenzie
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Nirupama Varese
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Pei Mun Aui
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Simone Reinwald
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Bruce D. Wines
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Immune Therapies GroupBurnet InstituteMelbourneVictoriaAustralia
- Department of PathologyThe University of MelbourneParkvilleVictoriaAustralia
| | - P. Mark Hogarth
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Immune Therapies GroupBurnet InstituteMelbourneVictoriaAustralia
- Department of PathologyThe University of MelbourneParkvilleVictoriaAustralia
| | - Francis Thien
- Respiratory Medicine, Eastern HealthBox Hill and Monash UniversityMelbourneVictoriaAustralia
| | - Mark Hew
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
- Allergy, Asthma and Clinical ImmunologyAlfred HealthMelbourneVictoriaAustralia
| | - Jennifer M. Rolland
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
| | - Robyn E. O'Hehir
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Allergy, Asthma and Clinical ImmunologyAlfred HealthMelbourneVictoriaAustralia
| | - Menno C. van Zelm
- Department of Immunology and Pathology, Central Clinical SchoolMonash UniversityMelbourneVictoriaAustralia
- Allergy, Asthma and Clinical ImmunologyAlfred HealthMelbourneVictoriaAustralia
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Quast I, Dvorscek AR, Pattaroni C, Steiner TM, McKenzie CI, Pitt C, O'Donnell K, Ding Z, Hill DL, Brink R, Robinson MJ, Zotos D, Tarlinton DM. Interleukin-21, acting beyond the immunological synapse, independently controls T follicular helper and germinal center B cells. Immunity 2022; 55:1414-1430.e5. [PMID: 35896116 DOI: 10.1016/j.immuni.2022.06.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 04/07/2022] [Accepted: 06/24/2022] [Indexed: 02/06/2023]
Abstract
Germinal centers (GCs), transient structures within B cell follicles and central to affinity maturation, require the coordinated behavior of T and B cells. IL-21, a pleiotropic T cell-derived cytokine, is key to GC biology through incompletely understood mechanisms. By genetically restricting production and receipt of IL-21 in vivo, we reveal how its independent actions on T and B cells combine to regulate the GC. IL-21 established the magnitude of the GC B cell response by promoting CD4+ T cell expansion and differentiation in a dose-dependent manner and with paracrine activity. Within GC, IL-21 specifically promoted B cell centroblast identity and, when bioavailability was high, plasma cell differentiation. Critically, these actions may occur irrespective of cognate T-B interactions, making IL-21 a general promoter of growth as distinct to a mediator of affinity-driven selection via synaptic delivery. This promiscuous activity of IL-21 explains the consequences of IL-21 deficiency on antibody-based immunity.
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Affiliation(s)
- Isaak Quast
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia.
| | - Alexandra R Dvorscek
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Celine Pattaroni
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Thiago M Steiner
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St, Melbourne, VIC 3000, Australia
| | - Craig I McKenzie
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Catherine Pitt
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Kristy O'Donnell
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Zhoujie Ding
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Danika L Hill
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Robert Brink
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia; St. Vincent's Clinical School, UNSW Sydney, Sydney, NSW 2010, Australia
| | - Marcus J Robinson
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Dimitra Zotos
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia
| | - David M Tarlinton
- Department of Immunology and Pathology, Monash University, 89 Commercial Rd, Melbourne, VIC 3004, Australia.
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3
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Dvorscek AR, McKenzie CI, Robinson MJ, Ding Z, Pitt C, O'Donnell K, Zotos D, Brink R, Tarlinton DM, Quast I. IL-21 has a critical role in establishing germinal centers by amplifying early B cell proliferation. EMBO Rep 2022; 23:e54677. [PMID: 35801309 PMCID: PMC9442303 DOI: 10.15252/embr.202254677] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 12/13/2022] Open
Abstract
The proliferation and differentiation of antigen‐specific B cells, including the generation of germinal centers (GC), are prerequisites for long‐lasting, antibody‐mediated immune protection. Affinity for antigen determines B cell recruitment, proliferation, differentiation, and competitiveness in the response, largely through determining access to T cell help. However, how T cell‐derived signals contribute to these outcomes is incompletely understood. Here, we report how the signature cytokine of follicular helper T cells, IL‐21, acts as a key regulator of the initial B cell response by accelerating cell cycle progression and the rate of cycle entry, increasing their contribution to the ensuing GC. This effect occurs over a wide range of initial B cell receptor affinities and correlates with elevated AKT and S6 phosphorylation. Moreover, the resultant increased proliferation can explain the IL‐21‐mediated promotion of plasma cell differentiation. Collectively, our data establish that IL‐21 acts from the outset of a T cell‐dependent immune response to increase cell cycle progression and fuel cyclic re‐entry of B cells, thereby regulating the initial GC size and early plasma cell output.
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Affiliation(s)
- Alexandra R Dvorscek
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Craig I McKenzie
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Marcus J Robinson
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Zhoujie Ding
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Catherine Pitt
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Kristy O'Donnell
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Dimitra Zotos
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Robert Brink
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia.,St. Vincent's Clinical School, UNSW Sydney, Sydney, NSW, Australia
| | - David M Tarlinton
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
| | - Isaak Quast
- Department of Immunology and Pathology, Monash University, Melbourne, Vic, Australia
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4
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Zotos D, Quast I, Li-Wai-Suen CSN, McKenzie CI, Robinson MJ, Kan A, Smyth GK, Hodgkin PD, Tarlinton DM. The concerted change in the distribution of cell cycle phases and zone composition in germinal centers is regulated by IL-21. Nat Commun 2021; 12:7160. [PMID: 34887406 PMCID: PMC8660905 DOI: 10.1038/s41467-021-27477-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 11/19/2021] [Indexed: 12/13/2022] Open
Abstract
Humoral immune responses require germinal centres (GC) for antibody affinity maturation. Within GC, B cell proliferation and mutation are segregated from affinity-based positive selection in the dark zone (DZ) and light zone (LZ) substructures, respectively. While IL-21 is known to be important in affinity maturation and GC maintenance, here we show it is required for both establishing normal zone representation and preventing the accumulation of cells in the G1 cell cycle stage in the GC LZ. Cell cycle progression of DZ B cells is unaffected by IL-21 availability, as is the zone phenotype of the most highly proliferative GC B cells. Collectively, this study characterises the development of GC zones as a function of time and B cell proliferation and identifies IL-21 as an important regulator of these processes. These data help explain the requirement for IL-21 in normal antibody affinity maturation.
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Affiliation(s)
- Dimitra Zotos
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Isaak Quast
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Connie S N Li-Wai-Suen
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia
- Department of Medical Biology, University of Melboure, Parkville, VIC, 3010, Australia
| | - Craig I McKenzie
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Marcus J Robinson
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne, VIC, 3004, Australia
| | - Andrey Kan
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia
- School of Computer Science, University of Adelaide, Frome Rd, Adelaide, SA, 5005, Australia
| | - Gordon K Smyth
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia
- School of Mathematics and Statistics, University of Melboure, Parkville, VIC, 3010, Australia
| | - Philip D Hodgkin
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia
| | - David M Tarlinton
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne, VIC, 3004, Australia.
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5
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van Zelm MC, McKenzie CI, Varese N, Rolland JM, O’Hehir RE. Advances in allergen-specific immune cell measurements for improved detection of allergic sensitization and immunotherapy responses. Allergy 2021; 76:3374-3382. [PMID: 34355403 DOI: 10.1111/all.15036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/02/2021] [Indexed: 01/10/2023]
Abstract
Over the past two decades, precision medicine has advanced diagnostics and treatment of allergic diseases. Component-resolved analysis of allergen sensitization facilitates stratification of patients. Furthermore, new formulations of allergen immunotherapy (AIT) products can more effectively deliver the relevant components. Molecular insights from the identification of allergen component sensitization and clinical outcomes of treatment with new AIT formulations can now be utilized for a deeper understanding of the nature of the pathogenic immune response in allergy and how this can be corrected by AIT. Fundamental in these processes are the allergen-specific B and T cells. Within the large B- and T-cell compartments, only those that specifically recognize the allergen with their immunoglobulin (Ig) or T-cell receptor (TCR), respectively, are of clinical relevance. With peripheral blood allergen-specific B- and T-cell frequencies below 1%, bulk cell analysis is typically insufficiently sensitive. We here review the latest technologies to detect allergen-specific B and T cells, as well as new developments in utilizing these tools for diagnostics and therapy monitoring to advance precision medicine for allergic diseases.
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Affiliation(s)
- Menno C. van Zelm
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
| | - Craig I. McKenzie
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Nirupama Varese
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
| | - Jennifer M. Rolland
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
| | - Robyn E. O’Hehir
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
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6
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McKenzie CI, Varese N, Aui PM, Wines BD, Hogarth PM, Thien F, Hew M, Rolland JM, O’Hehir RE, Zelm MC. CytoBas: Precision component-resolved diagnostics for allergy using flow cytometric staining of basophils with recombinant allergen tetramers. Allergy 2021; 76:3028-3040. [PMID: 33772805 PMCID: PMC8518718 DOI: 10.1111/all.14832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Diagnostic tests for allergy rely on detecting allergen-specific IgE. Component-resolved diagnostics incorporate multiple defined allergen components to improve the quality of diagnosis and patient care. OBJECTIVE To develop a new approach for determining sensitization to specific allergen components that utilizes fluorescent protein tetramers for direct staining of IgE on blood basophils by flow cytometry. METHODS Recombinant forms of Lol p 1 and Lol p 5 proteins from ryegrass pollen (RGP) and Api m 1 from honeybee venom (BV) were produced, biotinylated, and tetramerized with streptavidin-fluorochrome conjugates. Blood samples from 50 RGP-allergic, 41 BV-allergic, and 26 controls were incubated with fluorescent protein tetramers for flow cytometric evaluation of basophil allergen binding and activation. RESULTS Allergen tetramers bound to and activated basophils from relevant allergic patients but not controls. Direct fluorescence staining of Api m 1 and Lol p 1 tetramers had greater positive predictive values than basophil activation for BV and RGP allergy, respectively, as defined with receiver operator characteristics (ROC) curves. Staining intensities of allergen tetramers correlated with allergen-specific IgE levels in serum. Inclusion of multiple allergens coupled with distinct fluorochromes in a single-tube assay enabled rapid detection of sensitization to both Lol p 1 and Lol p 5 in RGP-allergic patients and discriminated between controls, BV-allergic, and RGP-allergic patients. CONCLUSION Our novel flow cytometric assay, termed CytoBas, enables rapid and reliable detection of clinically relevant allergic sensitization. The intensity of fluorescent allergen tetramer staining of basophils has a high positive predictive value for disease, and the assay can be multiplexed for a component-resolved and differential diagnostic test for allergy.
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Affiliation(s)
- Craig I. McKenzie
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Nirupama Varese
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University Melbourne VIC Australia
| | - Pei M. Aui
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Bruce D. Wines
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Immune Therapies Group Burnet Institute Melbourne Australia
- Department of Pathology The University of Melbourne Parkville VIC Australia
| | - Philip Mark Hogarth
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Immune Therapies Group Burnet Institute Melbourne Australia
- Department of Pathology The University of Melbourne Parkville VIC Australia
| | - Francis Thien
- Respiratory Medicine Eastern HealthBox Hill and Monash University Melbourne VIC Australia
| | - Mark Hew
- School of Public Health and Preventive Medicine Monash University Melbourne VIC Australia
- Allergy, Asthma and Clinical Immunology Alfred Health Melbourne VIC Australia
| | - Jennifer M. Rolland
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University Melbourne VIC Australia
| | - Robyn E. O’Hehir
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University Melbourne VIC Australia
- Allergy, Asthma and Clinical Immunology Alfred Health Melbourne VIC Australia
| | - Menno C. Zelm
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Allergy, Asthma and Clinical Immunology Alfred Health Melbourne VIC Australia
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Xie L, McKenzie CI, Qu X, Mu Y, Wang Q, Bing N, Naidoo K, Alam MJ, Yu D, Gong F, Ang C, Robert R, Marques FZ, Furlotte N, Hinds D, Gasser O, Xavier RJ, Mackay CR. pH and Proton Sensor GPR65 Determine Susceptibility to Atopic Dermatitis. J Immunol 2021; 207:101-109. [PMID: 34135065 PMCID: PMC8674371 DOI: 10.4049/jimmunol.2001363] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 04/15/2021] [Indexed: 12/15/2022]
Abstract
pH sensing by GPR65 regulates various inflammatory conditions, but its role in skin remains unknown. In this study, we performed a phenome-wide association study and report that the T allele of GPR65-intronic single-nucleotide polymorphism rs8005161, which reduces GPR65 signaling, showed a significant association with atopic dermatitis, in addition to inflammatory bowel diseases and asthma, as previously reported. Consistent with this genetic association in humans, we show that deficiency of GPR65 in mice resulted in markedly exacerbated disease in the MC903 experimental model of atopic dermatitis. Deficiency of GPR65 also increased neutrophil migration in vitro. Moreover, GPR65 deficiency in mice resulted in higher expression of the inflammatory cytokine TNF-α by T cells. In humans, CD4+ T cells from rs8005161 heterozygous individuals expressed higher levels of TNF-α after PMA/ionomycin stimulation, particularly under pH 6 conditions. pH sensing by GPR65 appears to be important for regulating the pathogenesis of atopic dermatitis.
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Affiliation(s)
- Liang Xie
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Clayton, Victoria, Australia
| | - Craig I McKenzie
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
- Department of Allergy, Immunology and Respiratory Medicine, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Xinyan Qu
- School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Yan Mu
- School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Quanbo Wang
- School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | | | - Karmella Naidoo
- Malaghan Institute of Medical Research, Victoria University of Wellington, Wellington, New Zealand
| | - Md Jahangir Alam
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Di Yu
- School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Fang Gong
- Department of Laboratory Medicine, Wuxi Hospital of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Caroline Ang
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Remy Robert
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Francine Z Marques
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Clayton, Victoria, Australia
- Heart Failure Research Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | | | | | - Olivier Gasser
- Malaghan Institute of Medical Research, Victoria University of Wellington, Wellington, New Zealand
| | - Ramnik J Xavier
- Broad Institute, MA
- Center for Computational and Integrative Biology, Department of Molecular Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA; and
- Center for Microbiome Informatics and Therapeutics, Massachusetts Institute of Technology, Cambridge, MA
| | - Charles R Mackay
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia;
- School of Pharmaceutical Sciences, Shandong Analysis and Test Center, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
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8
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Yap YA, McLeod KH, McKenzie CI, Gavin PG, Davalos-Salas M, Richards JL, Moore RJ, Lockett TJ, Clarke JM, Eng VV, Pearson JS, Hamilton-Williams EE, Mackay CR, Mariño E. An acetate-yielding diet imprints an immune and anti-microbial programme against enteric infection. Clin Transl Immunology 2021; 10:e1233. [PMID: 33489123 PMCID: PMC7809703 DOI: 10.1002/cti2.1233] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 11/16/2020] [Accepted: 12/09/2020] [Indexed: 12/19/2022] Open
Abstract
Objectives During gastrointestinal infection, dysbiosis can result in decreased production of microbially derived short‐chain fatty acids (SCFAs). In response to the presence of intestinal pathogens, we examined whether an engineered acetate‐ or butyrate‐releasing diet can rectify the deficiency of SCFAs and lead to the resolution of enteric infection. Methods We tested whether a high acetate‐ or butyrate‐producing diet (HAMSA or HAMSB, respectively) condition Citrobacterrodentium infection in mice and assess its impact on host‐microbiota interactions. We analysed the adaptive and innate immune responses, changes in gut microbiome function, epithelial barrier function and the molecular mechanism via metabolite sensing G protein‐coupled receptor 43 (GPR43) and IL‐22 expression. Results HAMSA diet rectified the deficiency in acetate production and protected against enteric infection. Increased SCFAs affect the expression of pathogen virulence genes. HAMSA diet promoted compositional and functional changes in the gut microbiota during infection similar to healthy microbiota from non‐infected mice. Bacterial changes were evidenced by the production of proteins involved in acetate utilisation, starch and sugar degradation, amino acid biosynthesis, carbohydrate transport and metabolism. HAMSA diet also induced changes in host proteins critical in glycolysis, wound healing such as GPX1 and epithelial architecture such as EZR1 and PFN1. Dietary acetate assisted in rapid epithelial repair, as shown by increased colonic Muc‐2, Il‐22, and anti‐microbial peptides. We found that acetate increased numbers of colonic IL‐22 producing TCRαβ+CD8αβ+ and TCRγδ+CD8αα+ intraepithelial lymphocytes expressing GPR43. Conclusion HAMSA diet may be an effective therapeutic approach for fighting inflammation and enteric infections and offer a safe alternative that may impact on human health.
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Affiliation(s)
- Yu Anne Yap
- Department of Biochemistry and Molecular Biology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
| | - Keiran H McLeod
- Department of Biochemistry and Molecular Biology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
| | - Craig I McKenzie
- Department of Biochemistry and Molecular Biology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
| | - Patrick G Gavin
- The University of Queensland Diamantina Institute The University of Queensland Brisbane QLD Australia
| | - Mercedes Davalos-Salas
- Department of Biochemistry and Molecular Biology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
| | - James L Richards
- Department of Biochemistry and Molecular Biology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
| | - Robert J Moore
- Department of Microbiology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia.,School of Science RMIT University Bundoora VIC Australia
| | | | | | - Vik Ven Eng
- Department of Microbiology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia.,Centre for Innate Immunity and Infectious Diseases Hudson Institute of Medical Research Clayton, Melbourne VIC Australia
| | - Jaclyn S Pearson
- Department of Microbiology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia.,Centre for Innate Immunity and Infectious Diseases Hudson Institute of Medical Research Clayton, Melbourne VIC Australia.,Department of Molecular and Translational Research Monash University Clayton, Melbourne VIC Australia
| | - Emma E Hamilton-Williams
- The University of Queensland Diamantina Institute The University of Queensland Brisbane QLD Australia
| | - Charles R Mackay
- Department of Microbiology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
| | - Eliana Mariño
- Department of Biochemistry and Molecular Biology Infection and Immunity Program Biomedicine Discovery Institute Monash University Clayton, Melbourne VIC Australia
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Hew M, Lee J, Varese N, Aui PM, McKenzie CI, Wines BD, Aumann H, Rolland JM, Mark Hogarth P, Zelm MC, O’Hehir RE. Epidemic thunderstorm asthma susceptibility from sensitization to ryegrass (Lolium perenne) pollen and major allergen Lol p 5. Allergy 2020; 75:2369-2372. [PMID: 32293712 PMCID: PMC7540598 DOI: 10.1111/all.14319] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/13/2020] [Accepted: 04/04/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Mark Hew
- Allergy, Asthma & Clinical Immunology Alfred Health Melbourne VIC Australia
- School of Public Health and Preventive Medicine Monash University Melbourne VIC Australia
| | - Joy Lee
- Allergy, Asthma & Clinical Immunology Alfred Health Melbourne VIC Australia
- School of Public Health and Preventive Medicine Monash University Melbourne VIC Australia
| | - Nirupama Varese
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University and Alfred Health Melbourne VIC Australia
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Pei M. Aui
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Craig I. McKenzie
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Bruce D. Wines
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Immune Therapies Group Burnet Institute Melbourne VIC Australia
- Department of Clinical Pathology University of Melbourne Parkville VIC Australia
| | - Heather Aumann
- Department of Haematology Alfred Health Melbourne VIC Australia
| | - Jennifer M. Rolland
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University and Alfred Health Melbourne VIC Australia
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Phillip Mark Hogarth
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Immune Therapies Group Burnet Institute Melbourne VIC Australia
- Department of Clinical Pathology University of Melbourne Parkville VIC Australia
| | - Menno C. Zelm
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University and Alfred Health Melbourne VIC Australia
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Robyn E. O’Hehir
- Allergy, Asthma & Clinical Immunology Alfred Health Melbourne VIC Australia
- Department of Allergy, Immunology and Respiratory Medicine Central Clinical School Monash University and Alfred Health Melbourne VIC Australia
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
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10
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Heeringa JJ, McKenzie CI, Varese N, Hew M, Bakx ATCM, Aui PM, Rolland JM, O’Hehir RE, Zelm MC. Induction of IgG 2 and IgG 4 B-cell memory following sublingual immunotherapy for ryegrass pollen allergy. Allergy 2020; 75:1121-1132. [PMID: 31587307 PMCID: PMC7317934 DOI: 10.1111/all.14073] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/06/2019] [Accepted: 08/29/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND While treatment for atopic rhinitis is aimed mostly to relieve symptoms, only allergen-specific immunotherapy (AIT) is targeted to modify the natural history of allergic diseases. This results in sustained clinical tolerance, even when treatment has stopped. The immunomodulatory effects of AIT are attributed mainly to increased regulatory T-cell function and increased allergen-specific IgG4 , yet little is known about the effect on the memory B-cell compartment. OBJECTIVE We aimed to examine the effects of AIT on the IgE- and IgG subclass-expressing memory B cells. METHODS We recruited 29 patients with atopic seasonal rhinoconjunctivitis and performed a longitudinal analysis of the peripheral immune compartment before, during, and after sublingual immunotherapy (SLIT) for allergy to temperate grass pollen, predominantly to ryegrass pollen (RGP; Lolium perenne). Using flow cytometry on peripheral blood mononuclear cells and serum immunoassays, we analyzed the effects of a 4 months preseasonal treatment regimen comprising two or three courses in consecutive years on circulating IgE+ and IgG+ memory B cells and allergen-specific Ig levels. RESULTS SLIT increased RGP-specific serum IgG2 and IgG4 , as well as the frequencies of IgG2 + and IgG4 + memory B cells, whereas no effect was observed on the IgE+ memory B-cell compartment. Furthermore, SLIT enhanced proportions of regulatory T cells specific to RGP. These changes were associated with clinical improvement. CONCLUSION Our data provide evidence for immunological effects of SLIT on B-cell memory. Skewing responses toward IgG2 and IgG4 subclasses might be a mechanism to suppress IgE-mediated allergic responses.
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Affiliation(s)
- Jorn J. Heeringa
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
- Department of Immunology Erasmus MC University Medical Center Rotterdam the Netherlands
- Department of Pediatrics Erasmus MC University Medical Center Rotterdam the Netherlands
| | - Craig I. McKenzie
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
| | - Nirupama Varese
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne Vic. Australia
| | - Mark Hew
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne Vic. Australia
- School of Public Health and Preventive Medicine Monash University Melbourne Vic. Australia
| | - Amy T. C. M. Bakx
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
| | - Pei M. Aui
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
| | - Jennifer M. Rolland
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne Vic. Australia
| | - Robyn E. O’Hehir
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne Vic. Australia
| | - Menno C. Zelm
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne Vic. Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne Vic. Australia
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11
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Zelm MC, McKenzie CI, Varese N, Rolland JM, O'Hehir RE. Recent developments and highlights in immune monitoring of allergen immunotherapy. Allergy 2019; 74:2342-2354. [PMID: 31587309 DOI: 10.1111/all.14078] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 12/15/2022]
Abstract
Allergic diseases are the most common chronic immune-mediated disorders and can manifest with an enormous diversity in clinical severity and symptoms. Underlying mechanisms for the adverse immune response to allergens and its downregulation by treatment are still being revealed. As a result, there have been, and still are, major challenges in diagnosis, prediction of disease progression/evolution and treatment. Currently, the only corrective treatment available is allergen immunotherapy (AIT). AIT modifies the immune response through long-term repeated exposure to defined doses of allergen. However, as the treatment usually needs to be continued for several years to be effective, and can be accompanied by adverse reactions, many patients face difficulties completing their schedule. Long-term therapy also potentially incurs high costs. Therefore, there is a great need for objective markers to predict or to monitor individual patient's beneficial changes in immune response during therapy so that efficacy can be identified as early as possible. In this review, we specifically address recent technical developments that have generated new insights into allergic disease pathogenesis, and how these could potentially be translated into routine laboratory assays for disease monitoring during AIT that are relatively inexpensive, robust and scalable.
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Affiliation(s)
- Menno C. Zelm
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
| | - Craig I. McKenzie
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
| | - Nirupama Varese
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
| | - Jennifer M. Rolland
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
| | - Robyn E. O'Hehir
- Department of Immunology and Pathology Central Clinical School Monash University Melbourne VIC Australia
- Department of Respiratory Medicine Allergy and Clinical Immunology (Research) Central Clinical School Monash University, and Alfred Hospital Melbourne VIC Australia
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12
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Veen W, Krätz CE, McKenzie CI, Aui PM, Neumann J, Noesel CJM, Wirz OF, Hagl B, Kröner C, Spielberger BD, Akdis CA, Zelm MC, Akdis M, Renner ED. Impaired memory B-cell development and antibody maturation with a skewing toward IgE in patients with STAT3 hyper-IgE syndrome. Allergy 2019; 74:2394-2405. [PMID: 31269238 DOI: 10.1111/all.13969] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 04/10/2019] [Accepted: 05/22/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND Signal transducer and activator of transcription 3 hyper-IgE syndrome (STAT3-HIES) is caused by heterozygous mutations in the STAT3 gene and is associated with eczema, elevated serum IgE, and recurrent infections resembling severe atopic dermatitis, while clinically relevant specific IgE is almost absent. METHODS To investigate the impact of STAT3 signaling on B-cell responses, we assessed lymph node and bone marrow, blood B and plasma cell subsets, somatic hypermutations in Ig genes, and in vitro proliferation and antibody production in STAT3-HIES patients and healthy controls. RESULTS Lymph nodes of STAT3-HIES patients showed normal germinal center architecture and CD138+ plasma cells residing in the paracortex, which expressed IgE, IgG, and IgM but not IgA. IgE+ plasma cells were abundantly present in STAT3-HIES bone marrow. Proliferation of naive B cells upon stimulation with CD40L and IL-4 was similar in patients and controls, while patient cells showed reduced responses to IL-21. IgE, IgG1, IgG3 and IgA1 transcripts showed reduced somatic hypermutations. Peripheral blood IgE+ memory B-cell frequencies were increased in STAT3-HIES, while other memory B-cell frequencies except for IgG4+ cells were decreased. CONCLUSIONS Despite impaired STAT3 signaling, STAT3-HIES patients can mount in vivo T-cell-dependent B-cell responses, while circulating memory B cells, except for those expressing IgG4 and IgE, were reduced. Reduced molecular maturation demonstrated the critical need of STAT3 signaling for optimal affinity maturation and B-cell differentiation, supporting the need for immunoglobulin substitution therapy and explaining the high IgE serum level in the majority with absent allergic symptoms.
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Affiliation(s)
- Willem Veen
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
| | - Carolin E. Krätz
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
- University Children's Hospital at Dr. von Haunersches Kinderspital Ludwig Maximilian University Munich Germany
| | - Craig I. McKenzie
- Department of Immunology and Pathology Monash University Melbourne Victoria Australia
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies in Melbourne Melbourne Victoria Australia
| | - Pei M. Aui
- Department of Immunology and Pathology Monash University Melbourne Victoria Australia
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies in Melbourne Melbourne Victoria Australia
| | - Jens Neumann
- Pathology Department Ludwig Maximilian University Munich Germany
| | - Carel J. M. Noesel
- Department of Pathology Academic Medical Center Amsterdam The Netherlands
| | - Oliver F. Wirz
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
| | - Beate Hagl
- University Children's Hospital at Dr. von Haunersches Kinderspital Ludwig Maximilian University Munich Germany
- Environmental Medicine, UNIKA‐T Augsburg Technische Universität München and Helmholtz Zentrum München Germany
| | - Carolin Kröner
- University Children's Hospital at Dr. von Haunersches Kinderspital Ludwig Maximilian University Munich Germany
| | - Benedikt D. Spielberger
- University Children's Hospital at Dr. von Haunersches Kinderspital Ludwig Maximilian University Munich Germany
- Environmental Medicine, UNIKA‐T Augsburg Technische Universität München and Helmholtz Zentrum München Germany
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
| | - Menno C. Zelm
- Department of Immunology and Pathology Monash University Melbourne Victoria Australia
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies in Melbourne Melbourne Victoria Australia
- Department of Allergy, Immunology and Respiratory Medicine Alfred Hospital Melbourne Victoria Australia
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
| | - Ellen D. Renner
- Christine Kühne Center for Allergy Research and Education (CK‐CARE) Davos Switzerland
- Environmental Medicine, UNIKA‐T Augsburg Technische Universität München and Helmholtz Zentrum München Germany
- Hochgebirgsklinik Davos Davos Switzerland
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13
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Lassen KG, McKenzie CI, Mari M, Murano T, Begun J, Baxt LA, Goel G, Villablanca EJ, Kuo SY, Huang H, Macia L, Bhan AK, Batten M, Daly MJ, Reggiori F, Mackay CR, Xavier RJ. Genetic Coding Variant in GPR65 Alters Lysosomal pH and Links Lysosomal Dysfunction with Colitis Risk. Immunity 2016; 44:1392-405. [PMID: 27287411 DOI: 10.1016/j.immuni.2016.05.007] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/19/2016] [Accepted: 03/21/2016] [Indexed: 12/28/2022]
Abstract
Although numerous polymorphisms have been associated with inflammatory bowel disease (IBD), identifying the function of these genetic factors has proved challenging. Here we identified a role for nine genes in IBD susceptibility loci in antibacterial autophagy and characterized a role for one of these genes, GPR65, in maintaining lysosome function. Mice lacking Gpr65, a proton-sensing G protein-coupled receptor, showed increased susceptibly to bacteria-induced colitis. Epithelial cells and macrophages lacking GPR65 exhibited impaired clearance of intracellular bacteria and accumulation of aberrant lysosomes. Similarly, IBD patient cells and epithelial cells expressing an IBD-associated missense variant, GPR65 I231L, displayed aberrant lysosomal pH resulting in lysosomal dysfunction, impaired bacterial restriction, and altered lipid droplet formation. The GPR65 I231L polymorphism was sufficient to confer decreased GPR65 signaling. Collectively, these data establish a role for GPR65 in IBD susceptibility and identify lysosomal dysfunction as a potentially causative element in IBD pathogenesis with effects on cellular homeostasis and defense.
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Affiliation(s)
- Kara G Lassen
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA.
| | - Craig I McKenzie
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Muriel Mari
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, 3713 AV Groningen, the Netherlands; Department of Cell Biology, University Medical Center Utrecht, 3564 CX Utrecht, the Netherlands
| | - Tatsuro Murano
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Jakob Begun
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Mater Research Institute and School of Medicine, University of Queensland, Brisbane, QLD 4101, Australia
| | - Leigh A Baxt
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Gautam Goel
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Eduardo J Villablanca
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Szu-Yu Kuo
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Hailiang Huang
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Laurence Macia
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Atul K Bhan
- Pathology Department, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA; Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Marcel Batten
- Garvan Institute of Medical Research and St. Vincent's Clinical School, University of New South Wales, Sydney, NSW 2010, Australia
| | - Mark J Daly
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Analytic and Translational Genetics Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Fulvio Reggiori
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, 3713 AV Groningen, the Netherlands; Department of Cell Biology, University Medical Center Utrecht, 3564 CX Utrecht, the Netherlands
| | - Charles R Mackay
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Ramnik J Xavier
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA 02114, USA; Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Boston, MA 02114, USA.
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14
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McKenzie CI, Mackay CR, Macia L. GPR43 - A Prototypic Metabolite Sensor Linking Metabolic and Inflammatory Diseases. Trends Endocrinol Metab 2015; 26:511-512. [PMID: 26412151 DOI: 10.1016/j.tem.2015.07.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 10/23/2022]
Abstract
Short-chain fatty acids (SCFAs) are released upon fermentation of dietary fiber by gut bacteria. G protein-coupled receptor 43 (GPR43), a key receptor for SCFAs, is expressed on cell types important for immunity and metabolism. GPR43 modulates both inflammatory and metabolic processes, and is crucial for understanding the pathogenesis of 'Western lifestyle' diseases.
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Affiliation(s)
- Craig I McKenzie
- Department of Immunology, Faculty of Medicine, Nursing and Health Sciences, Monash University, Wellington Road, Clayton, Victoria 3800, Australia
| | - Charles R Mackay
- Department of Immunology, Faculty of Medicine, Nursing and Health Sciences, Monash University, Wellington Road, Clayton, Victoria 3800, Australia; Pfizer Inc., 610 Main Street, Cambridge, MA 02139, USA.
| | - Laurence Macia
- Department of Immunology, Faculty of Medicine, Nursing and Health Sciences, Monash University, Wellington Road, Clayton, Victoria 3800, Australia; Charles Perkins Centre, The University of Sydney, NSW 2006, Australia; School of Medical Sciences, The University of Sydney, NSW 2006, Australia.
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15
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Thorburn AN, McKenzie CI, Shen S, Stanley D, Macia L, Mason LJ, Roberts LK, Wong CHY, Shim R, Robert R, Chevalier N, Tan JK, Mariño E, Moore RJ, Wong L, McConville MJ, Tull DL, Wood LG, Murphy VE, Mattes J, Gibson PG, Mackay CR. Evidence that asthma is a developmental origin disease influenced by maternal diet and bacterial metabolites. Nat Commun 2015; 6:7320. [PMID: 26102221 DOI: 10.1038/ncomms8320] [Citation(s) in RCA: 586] [Impact Index Per Article: 65.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 04/27/2015] [Indexed: 12/27/2022] Open
Abstract
Asthma is prevalent in Western countries, and recent explanations have evoked the actions of the gut microbiota. Here we show that feeding mice a high-fibre diet yields a distinctive gut microbiota, which increases the levels of the short-chain fatty acid, acetate. High-fibre or acetate-feeding led to marked suppression of allergic airways disease (AAD, a model for human asthma), by enhancing T-regulatory cell numbers and function. Acetate increases acetylation at the Foxp3 promoter, likely through HDAC9 inhibition. Epigenetic effects of fibre/acetate in adult mice led us to examine the influence of maternal intake of fibre/acetate. High-fibre/acetate feeding of pregnant mice imparts on their adult offspring an inability to develop robust AAD. High fibre/acetate suppresses expression of certain genes in the mouse fetal lung linked to both human asthma and mouse AAD. Thus, diet acting on the gut microbiota profoundly influences airway responses, and may represent an approach to prevent asthma, including during pregnancy.
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Affiliation(s)
- Alison N Thorburn
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Craig I McKenzie
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Sj Shen
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Dragana Stanley
- School of Medical and Applied Sciences, Central Queensland University, Rockhampton, Queensland 4702, Australia
| | - Laurence Macia
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Linda J Mason
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Laura K Roberts
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Connie H Y Wong
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Raymond Shim
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Remy Robert
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Nina Chevalier
- 1] Department of Immunology, Monash University, Clayton, Victoria 3800, Australia [2] Department of Rheumatology and Clinical Immunology, University Medical Center, 79106 Freiburg, Germany
| | - Jian K Tan
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Eliana Mariño
- Department of Immunology, Monash University, Clayton, Victoria 3800, Australia
| | - Rob J Moore
- 1] CSIRO Animal, Food, and Health Sciences, Geelong, Victoria 3220, Australia [2] Department of Microbiology, Monash University, Clayton, Victoria 3800, Australia
| | - Lee Wong
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Malcolm J McConville
- 1] Department of Biochemistry and Molecular Biology, Bio21 Institute of Molecular Science and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia [2] Metabolomics Australia, Bio21 Institute of Molecular Sciences and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Dedreia L Tull
- Metabolomics Australia, Bio21 Institute of Molecular Sciences and Biotechnology, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Lisa G Wood
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Vanessa E Murphy
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Joerg Mattes
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Peter G Gibson
- Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales 2300, Australia
| | - Charles R Mackay
- 1] Department of Immunology, Monash University, Clayton, Victoria 3800, Australia [2] Charles Perkins Centre, Sydney University Medical School, University of Sydney, Sydney, New South Wales 2006, Australia
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