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Oyesola O, Downie AE, Howard N, Barre RS, Kiwanuka K, Zaldana K, Chen YH, Menezes A, Lee SC, Devlin J, Mondragón-Palomino O, Souza COS, Herrmann C, Koralov SB, Cadwell K, Graham AL, Loke P. Genetic and environmental interactions contribute to immune variation in rewilded mice. Nat Immunol 2024; 25:1270-1282. [PMID: 38877178 PMCID: PMC11224019 DOI: 10.1038/s41590-024-01862-5] [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: 05/02/2023] [Accepted: 05/02/2024] [Indexed: 06/16/2024]
Abstract
The relative and synergistic contributions of genetics and environment to interindividual immune response variation remain unclear, despite implications in evolutionary biology and medicine. Here we quantify interactive effects of genotype and environment on immune traits by investigating C57BL/6, 129S1 and PWK/PhJ inbred mice, rewilded in an outdoor enclosure and infected with the parasite Trichuris muris. Whereas cellular composition was shaped by interactions between genotype and environment, cytokine response heterogeneity including IFNγ concentrations was primarily driven by genotype with consequence on worm burden. In addition, we show that other traits, such as expression of CD44, were explained mostly by genetics on T cells, whereas expression of CD44 on B cells was explained more by environment across all strains. Notably, genetic differences under laboratory conditions were decreased following rewilding. These results indicate that nonheritable influences interact with genetic factors to shape immune variation and parasite burden.
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Affiliation(s)
- Oyebola Oyesola
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
| | - Alexander E Downie
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA
- Department of Primate Behavior and Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Nina Howard
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ramya S Barre
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Sciences Center at San Antonio, San Antonio, TX, USA
| | - Kasalina Kiwanuka
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Kimberly Zaldana
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Department of Pathology, New York University, Grossman School of Medicine, New York, NY, USA
| | - Ying-Han Chen
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine, New York, NY, USA
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Arthur Menezes
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA
| | - Soo Ching Lee
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Joseph Devlin
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine, New York, NY, USA
| | - Octavio Mondragón-Palomino
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Camila Oliveira Silva Souza
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Christin Herrmann
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine, New York, NY, USA
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Sergei B Koralov
- Department of Pathology, New York University, Grossman School of Medicine, New York, NY, USA
| | - Ken Cadwell
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA
| | - Andrea L Graham
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA.
- Santa Fe Institute, Santa Fe, NM, USA.
| | - P'ng Loke
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, USA.
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2
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Maurice NJ, Dalzell TS, Jarjour NN, DePauw TA, Jameson SC. Steady-state, therapeutic, and helminth-induced IL-4 compromise protective CD8 T cell bystander activation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.10.598293. [PMID: 38915668 PMCID: PMC11195063 DOI: 10.1101/2024.06.10.598293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Memory CD8 T cells (Tmem) can be activated into innate-like killers by cytokines like IL-12, IL-15, and/or IL-18; but mechanisms regulating this phenomenon (termed bystander activation) are not fully resolved. We found strain-intrinsic deficiencies in bystander activation using specific pathogen-free mice, whereby basal IL-4 signals antagonize IL-18 sensing. We show that therapeutic and helminth-induced IL-4 impairs protective bystander-mediated responses against pathogens. However, this IL-4/IL-18 axis does not completely abolish bystander activation but rather tunes the expression of direct versus indirect mediators of cytotoxicity (granzymes and interferon-γ, respectively). We show that antigen-experience overrides strain-specific deficiencies in bystander activation, leading to uniform IL-18 receptor expression and enhanced capacity for bystander activation/cytotoxicity. Our data highlight that bystander activation is not a binary process but tuned/deregulated by other cytokines that are elevated by contemporaneous infections. Further, our findings underscore the importance of antigen-experienced Tmem to dissect the contributions of bystander Tmem in health and disease.
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Affiliation(s)
- Nicholas J Maurice
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN
| | - Talia S Dalzell
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN
| | - Nicholas N Jarjour
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN
| | - Taylor A DePauw
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN
| | - Stephen C Jameson
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN
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3
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Bosch TCG, Wigley M, Colomina B, Bohannan B, Meggers F, Amato KR, Azad MB, Blaser MJ, Brown K, Dominguez-Bello MG, Ehrlich SD, Elinav E, Finlay BB, Geddie K, Geva-Zatorsky N, Giles-Vernick T, Gros P, Guillemin K, Haraoui LP, Johnson E, Keck F, Lorimer J, McFall-Ngai MJ, Nichter M, Pettersson S, Poinar H, Rees T, Tropini C, Undurraga EA, Zhao L, Melby MK. The potential importance of the built-environment microbiome and its impact on human health. Proc Natl Acad Sci U S A 2024; 121:e2313971121. [PMID: 38662573 PMCID: PMC11098107 DOI: 10.1073/pnas.2313971121] [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] [Indexed: 05/18/2024] Open
Abstract
There is increasing evidence that interactions between microbes and their hosts not only play a role in determining health and disease but also in emotions, thought, and behavior. Built environments greatly influence microbiome exposures because of their built-in highly specific microbiomes coproduced with myriad metaorganisms including humans, pets, plants, rodents, and insects. Seemingly static built structures host complex ecologies of microorganisms that are only starting to be mapped. These microbial ecologies of built environments are directly and interdependently affected by social, spatial, and technological norms. Advances in technology have made these organisms visible and forced the scientific community and architects to rethink gene-environment and microbe interactions respectively. Thus, built environment design must consider the microbiome, and research involving host-microbiome interaction must consider the built-environment. This paradigm shift becomes increasingly important as evidence grows that contemporary built environments are steadily reducing the microbial diversity essential for human health, well-being, and resilience while accelerating the symptoms of human chronic diseases including environmental allergies, and other more life-altering diseases. New models of design are required to balance maximizing exposure to microbial diversity while minimizing exposure to human-associated diseases. Sustained trans-disciplinary research across time (evolutionary, historical, and generational) and space (cultural and geographical) is needed to develop experimental design protocols that address multigenerational multispecies health and health equity in built environments.
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Affiliation(s)
- Thomas C. G. Bosch
- Zoological Institute, University of Kiel, Kiel24118, Germany
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
| | - Mark Wigley
- Graduate School of Architecture, Planning and Preservation, Columbia University, New York, NY10027
| | - Beatriz Colomina
- School of Architecture, Princeton University, Princeton, NJ08544
| | - Brendan Bohannan
- The Institute of Ecology and Evolution, University of Oregon, Eugene, OR97403-5289
| | - Forrest Meggers
- Princeton University School of Architecture & Andlinger Center for Energy and the Environment, Princeton, NJ08540
| | - Katherine R. Amato
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Anthropology, Northwestern University, Evanston, IL60208
| | - Meghan B. Azad
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB R3E 0Z3, Canada
- Department of Community Health Sciences, University of Manitoba, Winnipeg, MB R3E 3P5, Canada
| | - Martin J. Blaser
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Children’s Hospital Research Institute of Manitoba, Winnipeg, MBR3E 3P4, Canada
- Center for Advanced Biotechnology and Medicine at Rutgers Biomedical and Health Sciences, Rutgers University, Piscataway, NJ08854-8021
| | - Kate Brown
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Program in Science, Technology and Society, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Maria Gloria Dominguez-Bello
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ08901
- Department of Anthropology, Rutgers University, New Brunswick, NJ08901
| | - Stanislav Dusko Ehrlich
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Institute of Neurology, University College London, LondonWC1N 3RX, United Kingdom
| | - Eran Elinav
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Systems Immunology Department, Weizmann Institute of Science, Rehovot761000, Israel
- Division of Microbiome & Cancer, Deutsches Krebsforschungszentrum, 69120Heidelberg, Germany
| | - B. Brett Finlay
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Michael Smith Laboratories, University of British Columbia, Vancouver, BCV6T 1Z4, Canada
| | - Kate Geddie
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Medical and Related Sciences Centre, The Canadian Institute for Advanced Research, Toronto, ONM5G 1L7, Canada
| | - Naama Geva-Zatorsky
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Technion Integrated Cancer Center, Technion-Israel Institute of Technology, Haifa3525433, Israel
- Department of Cell Biology and Cancer Science, Technion-Israel Institute of Technology, Haifa3525433, Israel
| | - Tamara Giles-Vernick
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Anthropology & Ecology of Disease Emergence, Institut Pasteur, Université Paris Cité, Paris75015, France
| | - Philippe Gros
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Biochemistry, McGill University, Montreal, QCH3G 1Y6, Canada
| | - Karen Guillemin
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Institute of Molecular Biology, University of Oregon, Eugene, OR97403
| | - Louis-Patrick Haraoui
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Microbiology and Infectious Diseases, Université de Sherbrooke, CanadaJ1E 4K8
| | - Elizabeth Johnson
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- College of Human Ecology, Cornell University, IthakaNY14853
| | - Frédéric Keck
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Laboratoire d’Anthropologie Sociale, Collège de France, Paris75005, France
| | - Jamie Lorimer
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- School of Geography and the Environment, University of Oxford, OX1 3QY, United Kingdom
| | - Margaret J. McFall-Ngai
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Division of Biology and Biological Engineering, Caltech, Pasadena, CA91125
| | - Mark Nichter
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- School of Anthropology, University of Arizona, Tucson, AZ85721
| | - Sven Pettersson
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Nanyang Technological University, Singapore637715, Singapore
| | - Hendrik Poinar
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Anthropology, McMaster University, Hamilton, ONL8S 4M4, Canada
| | - Tobias Rees
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- LIMN, Berkeley, CA94708
| | - Carolina Tropini
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Microbiology and Immunology and School of Biomedical Engineering, University of British Columbia, Vancouver, BCV6T 1Z3, Canada
| | - Eduardo A. Undurraga
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Escuela de Gobierno, Pontificia Universidad Católica de Chile, Santiago7820436, Chile
| | - Liping Zhao
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ08901
| | - Melissa K. Melby
- Humans and the Microbiome Program, Canadian Institute for Advanced Research, Toronto, ONM5G 1M1, Canada
- Department of Anthropology, University of Delaware, Newark, DE19716
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4
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Dahlquist KJV, Huggins MA, Yousefzadeh MJ, Soto-Palma C, Cholensky SH, Pierson M, Smith DM, Hamilton SE, Camell CD. PD1 blockade improves survival and CD8 + cytotoxic capacity, without increasing inflammation, during normal microbial experience in old mice. NATURE AGING 2024:10.1038/s43587-024-00620-4. [PMID: 38689133 DOI: 10.1038/s43587-024-00620-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/29/2024] [Indexed: 05/02/2024]
Abstract
By 2030, individuals 65 years of age or older will make up approximately 20% of the world's population1. Older individuals are at the highest risk for mortality from infections, largely due to the pro-inflammatory, dysfunctional immune response, which is collectively known as immunosenescence2. During aging, CD8+ T cells acquire an exhausted phenotype, including increased expression of inhibitory receptors, such as programmed cell death 1 (PD1), a decline in effector function and elevated expression of inflammatory factors3-7. PD1 reduces T cell receptor activity via SHP2-dependent dephosphorylation of multiple pathways; accordingly, inhibiting PD1 activity through monoclonal antibodies increases CD8+ T cell effector response in young mice8-11. Attempts to improve CD8+ T cell responses by blocking inhibitory receptors are attractive; however, they can lead to adverse immune events due to overamplification of T cell receptor signaling and T cell activation12,13. Here we investigated the effect of monoclonal anti-PD1 immunotherapy during normal microbial experience, otherwise known as exposure to dirty mice, to determine whether it either improves exhausted CD8+ T cell responses in old mice or leads to a heightened inflammatory response and increased mortality.
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Affiliation(s)
- Korbyn J V Dahlquist
- Biochemistry, Molecular Biology and Biophysics Graduate Program, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Matthew A Huggins
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Matthew J Yousefzadeh
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine, Columbia Center for Translational Immunology, Columbia Center for Healthy Longevity, Columbia University, New York, NY, USA
| | - Carolina Soto-Palma
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Stephanie H Cholensky
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Mark Pierson
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Declan M Smith
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
| | - Sara E Hamilton
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Christina D Camell
- Biochemistry, Molecular Biology and Biophysics Graduate Program, Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN, USA.
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Minneapolis, MN, USA.
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA.
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5
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Graham JB, Swarts JL, Leist SR, Schäfer A, Bell TA, Hock P, Farrington J, Shaw GD, Ferris MT, Pardo-Manuel de Villena F, Baric RS, Lund JM. Unique immune profiles in collaborative cross mice linked to survival and viral clearance upon infection. iScience 2024; 27:109103. [PMID: 38361611 PMCID: PMC10867580 DOI: 10.1016/j.isci.2024.109103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/18/2023] [Accepted: 01/30/2024] [Indexed: 02/17/2024] Open
Abstract
The response to infection is generally heterogeneous and diverse, with some individuals remaining asymptomatic while others present with severe disease or a diverse range of symptoms. Here, we address the role of host genetics on immune phenotypes and clinical outcomes following viral infection by studying genetically diverse mice from the Collaborative Cross (CC), allowing for use of a small animal model with controlled genetic diversity while maintaining genetic replicates. We demonstrate variation by deeply profiling a broad range of innate and adaptive immune cell phenotypes at steady-state in 63 genetically distinct CC mouse strains and link baseline immune signatures with virologic and clinical disease outcomes following infection of mice with herpes simplex virus 2 (HSV-2) or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This work serves as a resource for CC strain selection based on steady-state immune phenotypes or disease presentation upon viral infection, and further, points to possible pre-infection immune correlates of survival and early viral clearance upon infection.
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Affiliation(s)
- Jessica B. Graham
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Jessica L. Swarts
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Sarah R. Leist
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alexandra Schäfer
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Timothy A. Bell
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Pablo Hock
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Joe Farrington
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ginger D. Shaw
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Martin T. Ferris
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Fernando Pardo-Manuel de Villena
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ralph S. Baric
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jennifer M. Lund
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
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6
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Collins CP, Longo DL, Murphy WJ. The immunobiology of SARS-CoV-2 infection and vaccine responses: potential influences of cross-reactive memory responses and aging on efficacy and off-target effects. Front Immunol 2024; 15:1345499. [PMID: 38469293 PMCID: PMC10925677 DOI: 10.3389/fimmu.2024.1345499] [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: 11/27/2023] [Accepted: 02/12/2024] [Indexed: 03/13/2024] Open
Abstract
Immune responses to both SARS-CoV-2 infection and its associated vaccines have been highly variable within the general population. The increasing evidence of long-lasting symptoms after resolution of infection, called post-acute sequelae of COVID-19 (PASC) or "Long COVID," suggests that immune-mediated mechanisms are at play. Closely related endemic common human coronaviruses (hCoV) can induce pre-existing and potentially cross-reactive immunity, which can then affect primary SARS-CoV-2 infection, as well as vaccination responses. The influence of pre-existing immunity from these hCoVs, as well as responses generated from original CoV2 strains or vaccines on the development of new high-affinity responses to CoV2 antigenic viral variants, needs to be better understood given the need for continuous vaccine adaptation and application in the population. Due in part to thymic involution, normal aging is associated with reduced naïve T cell compartments and impaired primary antigen responsiveness, resulting in a reliance on the pre-existing cross-reactive memory cell pool which may be of lower affinity, restricted in diversity, or of shorter duration. These effects can also be mediated by the presence of down-regulatory anti-idiotype responses which also increase in aging. Given the tremendous heterogeneity of clinical data, utilization of preclinical models offers the greatest ability to assess immune responses under a controlled setting. These models should now involve prior antigen/viral exposure combined with incorporation of modifying factors such as age on immune responses and effects. This will also allow for mechanistic dissection and understanding of the different immune pathways involved in both SARS-CoV-2 pathogen and potential vaccine responses over time and how pre-existing memory responses, including potential anti-idiotype responses, can affect efficacy as well as potential off-target effects in different tissues as well as modeling PASC.
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Affiliation(s)
- Craig P. Collins
- Graduate Program in Immunology, University of California (UC) Davis, Davis, CA, United States
| | - Dan L. Longo
- Harvard Medical School, Brigham and Women’s Hospital, Boston, MA, United States
| | - William J. Murphy
- Departments of Dermatology and Internal Medicine (Hematology/Oncology), University of California (UC) Davis School of Medicine, Sacramento, CA, United States
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7
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Silva EE, Moioffer SJ, Hassert M, Berton RR, Smith MG, van de Wall S, Meyerholz DK, Griffith TS, Harty JT, Badovinac VP. Defining Parameters That Modulate Susceptibility and Protection to Respiratory Murine Coronavirus MHV1 Infection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:563-575. [PMID: 38149923 PMCID: PMC10872354 DOI: 10.4049/jimmunol.2300434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023]
Abstract
Patients infected with SARS-CoV-2 experience variable disease susceptibility, and patients with comorbidities such as sepsis are often hospitalized for COVID-19 complications. However, the extent to which initial infectious inoculum dose determines disease outcomes and whether this can be used for immunological priming in a genetically susceptible host has not been completely defined. We used an established SARS-like murine model in which responses to primary and/or secondary challenges with murine hepatitis virus type 1 (MHV-1) were analyzed. We compared the response to infection in genetically susceptible C3H/HeJ mice, genetically resistant C57BL/6J mice, and genetically diverse, variably susceptible outbred Swiss Webster mice. Although defined as genetically susceptible to MHV-1, C3H/HeJ mice displayed decreasing dose-dependent pathological changes in disease severity and lung infiltrate/edema, as well as lymphopenia. Importantly, an asymptomatic dose (500 PFU) was identified that yielded no measurable morbidity/mortality postinfection in C3H/HeJ mice. Polymicrobial sepsis induced via cecal ligation and puncture converted asymptomatic infections in C3H/HeJ and C57BL/6J mice to more pronounced disease, modeling the impact of sepsis as a comorbidity to β-coronavirus infection. We then used low-dose infection as an immunological priming event in C3H/HeJ mice, which provided neutralizing Ab-dependent, but not circulating CD4/CD8 T cell-dependent, protection against a high-dose MHV-1 early rechallenge. Together, these data define how infection dose, immunological status, and comorbidities modulate outcomes of primary and secondary β-coronavirus infections in hosts with variable susceptibility.
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Affiliation(s)
- Elvia E Silva
- Department of Pathology, University of Iowa, Iowa City, IA
- Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
| | | | - Mariah Hassert
- Department of Pathology, University of Iowa, Iowa City, IA
| | - Roger R Berton
- Department of Pathology, University of Iowa, Iowa City, IA
- Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
| | - Matthew G Smith
- Department of Pathology, University of Iowa, Iowa City, IA
- Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
| | | | | | - Thomas S Griffith
- Department of Urology, University of Minnesota, Minneapolis, MN
- Minneapolis Veterans Affairs Health Care System, Minneapolis, MN
| | - John T Harty
- Department of Pathology, University of Iowa, Iowa City, IA
- Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
| | - Vladimir P Badovinac
- Department of Pathology, University of Iowa, Iowa City, IA
- Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
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8
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Cao Y, Zhang L, Xiong F, Guo X, Kan X, Song S, Liang B, Liang B, Yu L, Zheng C. Effect of probiotics and fecal microbiota transplantation in dirty rats with established primary liver cancer. Future Microbiol 2024; 19:117-129. [PMID: 37934064 DOI: 10.2217/fmb-2022-0234] [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: 10/09/2023] [Accepted: 09/15/2023] [Indexed: 11/08/2023] Open
Abstract
Background: The modulating effects of probiotics and fecal microbiota transplantation (FMT) on gut flora and their direct antitumor effects remain unclear in dirty rats with established primary liver cancer. Materials & methods: Probiotics (VSL#3), FMT or tap water were administrated to three groups. Fresh fecal samples were collected from all groups for 16S rRNA analysis. Liver cancer tissues were collected to evaluate the tumor response. Results: Significant modulation of β-diversity (p = 0.023) was observed after FMT. VSL#3 and FMT had no inhibitory effect on tumors, but the density of Treg cells decreased (p = 0.031) in the FMT group. Conclusion: FMT is a more attractive alternative to probiotics in dirty rats with liver cancer.
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Affiliation(s)
- Yanyan Cao
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Lijie Zhang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Fu Xiong
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Xiaopeng Guo
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Xuefeng Kan
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Songlin Song
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Bo Liang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Bin Liang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
| | - Li Yu
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
| | - Chuansheng Zheng
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, Hubei, 430022, China
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9
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Downie AE, Oyesola O, Barre RS, Caudron Q, Chen YH, Dennis EJ, Garnier R, Kiwanuka K, Menezes A, Navarrete DJ, Mondragón-Palomino O, Saunders JB, Tokita CK, Zaldana K, Cadwell K, Loke P, Graham AL. Spatiotemporal-social association predicts immunological similarity in rewilded mice. SCIENCE ADVANCES 2023; 9:eadh8310. [PMID: 38134275 PMCID: PMC10745690 DOI: 10.1126/sciadv.adh8310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023]
Abstract
Environmental influences on immune phenotypes are well-documented, but our understanding of which elements of the environment affect immune systems, and how, remains vague. Behaviors, including socializing with others, are central to an individual's interaction with its environment. We therefore tracked behavior of rewilded laboratory mice of three inbred strains in outdoor enclosures and examined contributions of behavior, including associations measured from spatiotemporal co-occurrences, to immune phenotypes. We found extensive variation in individual and social behavior among and within mouse strains upon rewilding. In addition, we found that the more associated two individuals were, the more similar their immune phenotypes were. Spatiotemporal association was particularly predictive of similar memory T and B cell profiles and was more influential than sibling relationships or shared infection status. These results highlight the importance of shared spatiotemporal activity patterns and/or social networks for immune phenotype and suggest potential immunological correlates of social life.
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Affiliation(s)
- Alexander E. Downie
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Oyebola Oyesola
- Laboratory of Parasitic Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ramya S. Barre
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Sciences Center at San Antonio, San Antonio, TX 78229, USA
| | - Quentin Caudron
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Ying-Han Chen
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Emily J. Dennis
- Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA
| | - Romain Garnier
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Kasalina Kiwanuka
- Laboratory of Parasitic Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Arthur Menezes
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Daniel J. Navarrete
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
- Department of Microbiology and Immunology, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Octavio Mondragón-Palomino
- Laboratory of Parasitic Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jesse B. Saunders
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Christopher K. Tokita
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Kimberly Zaldana
- Laboratory of Parasitic Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ken Cadwell
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - P’ng Loke
- Laboratory of Parasitic Diseases, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Andrea L. Graham
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
- Santa Fe Institute, Santa Fe, NM 87501, USA
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10
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Evans F, Alí-Ruiz D, Rego N, Negro-Demontel ML, Lago N, Cawen FA, Pannunzio B, Sanchez-Molina P, Reyes L, Paolino A, Rodríguez-Duarte J, Pérez-Torrado V, Chicote-González A, Quijano C, Marmisolle I, Mulet AP, Schlapp G, Meikle MN, Bresque M, Crispo M, Savio E, Malagelada C, Escande C, Peluffo H. CD300f immune receptor contributes to healthy aging by regulating inflammaging, metabolism, and cognitive decline. Cell Rep 2023; 42:113269. [PMID: 37864797 DOI: 10.1016/j.celrep.2023.113269] [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: 03/10/2023] [Revised: 08/25/2023] [Accepted: 09/28/2023] [Indexed: 10/23/2023] Open
Abstract
Emerging evidence suggests that immune receptors may participate in many aging-related processes such as energy metabolism, inflammation, and cognitive decline. CD300f, a TREM2-like lipid-sensing immune receptor, is an exceptional receptor as it integrates activating and inhibitory cell-signaling pathways that modulate inflammation, efferocytosis, and microglial metabolic fitness. We hypothesize that CD300f can regulate systemic aging-related processes and ultimately healthy lifespan. We closely followed several cohorts of two strains of CD300f-/- and WT mice of both sexes for 30 months and observed an important reduction in lifespan and healthspan in knockout mice. This was associated with systemic inflammaging, increased cognitive decline, reduced brain glucose uptake observed by 18FDG PET scans, enrichment in microglial aging/neurodegeneration phenotypes, proteostasis alterations, senescence, increased frailty, and sex-dependent systemic metabolic changes. Moreover, the absence of CD300f altered macrophage immunometabolic phenotype. Taken together, we provide strong evidence suggesting that myeloid cell CD300f immune receptor contributes to healthy aging.
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Affiliation(s)
- Frances Evans
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Daniela Alí-Ruiz
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Natalia Rego
- Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay; Faculty of Sciences, UDELAR, Montevideo, Uruguay
| | - María Luciana Negro-Demontel
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Natalia Lago
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Fabio Andrés Cawen
- Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Bruno Pannunzio
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Paula Sanchez-Molina
- Department of Cell Biology, Physiology and Immunology, and Institute of Neuroscience, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Reyes
- Uruguayan Center for Molecular Imaging (CUDIM), Montevideo, Uruguay
| | - Andrea Paolino
- Uruguayan Center for Molecular Imaging (CUDIM), Montevideo, Uruguay
| | - Jorge Rodríguez-Duarte
- Laboratory of Vascular Biology and Drug Development, INDICYO Program, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Valentina Pérez-Torrado
- Metabolic Diseases and Aging Laboratory, INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Almudena Chicote-González
- Unitat de Bioquímica i Biologia Molecular, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain
| | - Celia Quijano
- Departamento de Bioquímica y Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Inés Marmisolle
- Departamento de Bioquímica y Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Ana Paula Mulet
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Geraldine Schlapp
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - María Noel Meikle
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Mariana Bresque
- Metabolic Diseases and Aging Laboratory, INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Martina Crispo
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Eduardo Savio
- Uruguayan Center for Molecular Imaging (CUDIM), Montevideo, Uruguay
| | - Cristina Malagelada
- Unitat de Bioquímica i Biologia Molecular, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain
| | - Carlos Escande
- Metabolic Diseases and Aging Laboratory, INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Hugo Peluffo
- Department of Histology and Embryology, Faculty of Medicine, UDELAR, Montevideo, Uruguay; Neuroinflammation and Gene Therapy Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay; Unitat de Bioquímica i Biologia Molecular, Departament de Biomedicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain; Institut de Neurociències, Universitat de Barcelona (UB), Barcelona, Spain.
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11
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Husso A, Pessa-Morikawa T, Koistinen VM, Kärkkäinen O, Kwon HN, Lahti L, Iivanainen A, Hanhineva K, Niku M. Impacts of maternal microbiota and microbial metabolites on fetal intestine, brain, and placenta. BMC Biol 2023; 21:207. [PMID: 37794486 PMCID: PMC10552303 DOI: 10.1186/s12915-023-01709-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 09/21/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND The maternal microbiota modulates fetal development, but the mechanisms of these earliest host-microbe interactions are unclear. To investigate the developmental impacts of maternal microbial metabolites, we compared full-term fetuses from germ-free and specific pathogen-free mouse dams by gene expression profiling and non-targeted metabolomics. RESULTS In the fetal intestine, critical genes mediating host-microbe interactions, innate immunity, and epithelial barrier were differentially expressed. Interferon and inflammatory signaling genes were downregulated in the intestines and brains of the fetuses from germ-free dams. The expression of genes related to neural system development and function, translation and RNA metabolism, and regulation of energy metabolism were significantly affected. The gene coding for the insulin-degrading enzyme (Ide) was most significantly downregulated in all tissues. In the placenta, genes coding for prolactin and other essential regulators of pregnancy were downregulated in germ-free dams. These impacts on gene expression were strongly associated with microbially modulated metabolite concentrations in the fetal tissues. Aryl sulfates and other aryl hydrocarbon receptor ligands, the trimethylated compounds TMAO and 5-AVAB, Glu-Trp and other dipeptides, fatty acid derivatives, and the tRNA nucleobase queuine were among the compounds strongly associated with gene expression differences. A sex difference was observed in the fetal responses to maternal microbial status: more genes were differentially regulated in male fetuses than in females. CONCLUSIONS The maternal microbiota has a major impact on the developing fetus, with male fetuses potentially more susceptible to microbial modulation. The expression of genes important for the immune system, neurophysiology, translation, and energy metabolism are strongly affected by the maternal microbial status already before birth. These impacts are associated with microbially modulated metabolites. We identified several microbial metabolites which have not been previously observed in this context. Many of the potentially important metabolites remain to be identified.
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Affiliation(s)
- Aleksi Husso
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Tiina Pessa-Morikawa
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Ville Mikael Koistinen
- Food Sciences Unit, Department of Life Technologies, University of Turku, Turku, Finland
- Institute of Public Health and Clinical Nutrition, School of Medicine, University of Eastern Finland, Kuopio, Finland
- Afekta Technologies Ltd., Kuopio, Finland
| | - Olli Kärkkäinen
- Afekta Technologies Ltd., Kuopio, Finland
- School of Pharmacy, University of Eastern Finland, Kuopio, Finland
| | - Hyuk Nam Kwon
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
- School of Biological Sciences and Basic-Clinical Convergence Research Institute, University of Ulsan, Ulsan, 44610, South Korea
| | - Leo Lahti
- Department of Computing, University of Turku, Turku, Finland
| | - Antti Iivanainen
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Kati Hanhineva
- Food Sciences Unit, Department of Life Technologies, University of Turku, Turku, Finland
- Institute of Public Health and Clinical Nutrition, School of Medicine, University of Eastern Finland, Kuopio, Finland
- Afekta Technologies Ltd., Kuopio, Finland
| | - Mikael Niku
- Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland.
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12
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Li Y, Molleston JM, Kim AH, Ingle H, Aggarwal S, Nolan LS, Hassan AO, Foster L, Diamond MS, Baldridge MT. Sequential early-life viral infections modulate the microbiota and adaptive immune responses to systemic and mucosal vaccination. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.31.555772. [PMID: 37693434 PMCID: PMC10491206 DOI: 10.1101/2023.08.31.555772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Increasing evidence points to the microbial exposome as a critical factor in maturing and shaping the host immune system, thereby influencing responses to immune challenges such as infections or vaccines. To investigate the effect of early-life viral exposures on immune development and vaccine responses, we inoculated mice with six distinct viral pathogens in sequence beginning in the neonatal period, and then evaluated their immune signatures before and after intramuscular or intranasal vaccination against SARS-CoV-2. Sequential viral infection drove profound changes in all aspects of the immune system, including increasing circulating leukocytes, altering innate and adaptive immune cell lineages in tissues, and markedly influencing serum cytokine and total antibody levels. Beyond these immune responses changes, these exposures also modulated the composition of the endogenous intestinal microbiota. Although sequentially-infected mice exhibited increased systemic immune activation and T cell responses after intramuscular and intranasal SARS-CoV-2 immunization, we observed decreased vaccine-induced antibody responses in these animals. These results suggest that early-life viral exposures are sufficient to diminish antibody responses to vaccination in mice, and highlight their potential importance of considering prior microbial exposures when investigating vaccine responses.
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13
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Mathew D, Barillas-Cerritos J, Nedeljkovic-Kurepa A, Abraham M, Taylor MD, Deutschman CS. Phosphorylation of insulin receptor substrates (IRS-1 and IRS-2) is attenuated following cecal ligation and puncture in mice. Mol Med 2023; 29:106. [PMID: 37550630 PMCID: PMC10408057 DOI: 10.1186/s10020-023-00703-9] [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: 02/28/2023] [Accepted: 07/18/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Sepsis is characterized as an insulin resistant state. However, the effects of sepsis on insulin's signal transduction pathway are unknown. The molecular activity driving insulin signaling is controlled by tyrosine phosphorylation of the insulin receptor β-subunit (IRβ) and of insulin receptor substrate molecules (IRS) -1 and IRS-2. HYPOTHESIS Cecal ligation and puncture (CLP) attenuates IRβ, IRS-1 and IRS-2 phosphorylation. METHODS IACUC-approved studies conformed to ARRIVE guidelines. CLP was performed on C57BL/6 mice; separate cohorts received intraperitoneal insulin at baseline (T0) or at 23 or 47 h. post-CLP, 1 h before mice were euthanized. We measured levels of (1) glucose and insulin in serum, (2) IRβ, IRS-1 and IRS-2 in skeletal muscle and liver homogenate and (3) phospho-Irβ (pIRβ) in liver and skeletal muscle, phospho-IRS-1 (pIRS-1) in skeletal muscle and pIRS-2 in liver. Statistical significance was determined using ANOVA with Sidak's post-hoc correction. RESULTS CLP did not affect the concentrations of IRβ, IRS-1or IRS-2 in muscle or liver homogenate or of IRS-1 in liver. Muscle IRS-1 concentration at 48 h. post-CLP was higher than at T0. Post-CLP pIRS-1 levels in muscle and pIRβ and pIRS-2 levels in liver were indistinguishable from T0 levels. At 48 h. post-CLP pIRβ levels in muscle were higher than at T0. Following insulin administration, the relative abundance of pIRβ in muscle and liver at T0 and at both post-CLP time points was significantly higher than abundance in untreated controls. In T0 controls, the relative abundance of pIRS-1 in muscle and of pIRS-2 in liver following insulin administration was higher than in untreated mice. However, at both post-CLP time points, the relative abundance of pIRS-1 in muscle and of pIRS-2 in liver following insulin administration was not distinguishable from the abundance in untreated mice at the same time point. Serum glucose concentration was significantly lower than T0 at 24 h., but not 48 h., post-CLP. Glucose concentration was lower following insulin administration to T0 mice but not in post-CLP animals. Serum insulin levels were significantly higher than baseline at both post-CLP time points. CONCLUSIONS CLP impaired insulin-induced tyrosine phosphorylation of both IRS-1 in muscle and IRS-2 in liver. These findings suggest that the molecular mechanism underlying CLP-induced insulin resistance involves impaired IRS-1/IRS-2 phosphorylation.
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Affiliation(s)
- Deepa Mathew
- Department of Pediatrics, Cohen Children's Medical Center, Lake Success, NY, USA
- Institute for Molecular Medicine, Feinstein Institutes for Medical Research, Room 3140, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Julia Barillas-Cerritos
- Department of Pediatrics, Cohen Children's Medical Center, Lake Success, NY, USA
- Institute for Molecular Medicine, Feinstein Institutes for Medical Research, Room 3140, 350 Community Dr, Manhasset, NY, 11030, USA
- Pediatric Endocrinology, Metabolism and Diabetes, Winthrop Pediatrics Associates, Mineola, NY, USA
| | - Ana Nedeljkovic-Kurepa
- Department of Pediatrics, Cohen Children's Medical Center, Lake Success, NY, USA
- Institute for Molecular Medicine, Feinstein Institutes for Medical Research, Room 3140, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Mabel Abraham
- Department of Pediatrics, Cohen Children's Medical Center, Lake Success, NY, USA
- Institute for Molecular Medicine, Feinstein Institutes for Medical Research, Room 3140, 350 Community Dr, Manhasset, NY, 11030, USA
| | - Matthew D Taylor
- Department of Pediatrics, Cohen Children's Medical Center, Lake Success, NY, USA
- Institute for Molecular Medicine, Feinstein Institutes for Medical Research, Room 3140, 350 Community Dr, Manhasset, NY, 11030, USA
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Clifford S Deutschman
- Department of Pediatrics, Cohen Children's Medical Center, Lake Success, NY, USA.
- Institute for Molecular Medicine, Feinstein Institutes for Medical Research, Room 3140, 350 Community Dr, Manhasset, NY, 11030, USA.
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA.
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14
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Lanzer KG, Cookenham T, Lehrmann E, Zhang Y, Duso D, Xie Q, Reiley WW, Becker KG, Blackman MA. Sequential Early-Life Infections Alter Peripheral Blood Transcriptomics in Aging Female Mice but Not the Response to De Novo Infection with Influenza Virus or M. tuberculosis. Immunohorizons 2023; 7:562-576. [PMID: 37555847 PMCID: PMC10587504 DOI: 10.4049/immunohorizons.2200066] [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: 09/08/2022] [Accepted: 07/07/2023] [Indexed: 08/10/2023] Open
Abstract
To determine the impact of accumulating Ag exposure on immunity in the aging mouse, and to develop a model more relevant to humans who are exposed to multiple pathogens during life, we sequentially infected young female mice with four distinct pathogens at 8-wk intervals: murine γ-herpesvirus 68, Sendai virus, murine CMV, and Heligmosomoides polygyrus. Mock-infected mice received PBS. After aging the sequentially infected and mock-infected mice to 18-25 mo under specific pathogen-free conditions, we analyzed multiple immune parameters. We assessed transcriptional activity in peripheral blood, T cell phenotype, the diversity of influenza epitopes recognized by CD8 T cells, and the response of the animals to infection with influenza virus and Mycobacterium tuberculosis. Our data show enhanced transcriptional activation in sequentially infected aged mice, with changes in some CD8 T cell subsets. However, there was no measurable difference in the response of mock-infected and sequentially infected aged mice to de novo infection with either influenza virus or M. tuberculosis at 18-21 mo. Unexpectedly, a single experiment in which 25-mo-old female mice were challenged with influenza virus revealed a significantly higher survival rate for sequentially infected (80%) versus mock-infected (20%) mice. These data suggest that although exposure to a variety of pathogen challenges in the mouse model does not overtly impact cellular markers of immunity in aged female mice following de novo respiratory infection, subtle changes may emerge in other compartments or with increasing age.
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Affiliation(s)
| | | | - Elin Lehrmann
- Computational Biology and Genomics Core, Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD
| | - Yongqing Zhang
- Computational Biology and Genomics Core, Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD
| | | | | | | | - Kevin G. Becker
- Computational Biology and Genomics Core, Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD
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15
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Burger S, Stenger T, Pierson M, Sridhar A, Huggins MA, Kucaba TA, Griffith TS, Hamilton SE, Schuldt NJ. Natural Microbial Exposure from the Earliest Natural Time Point Enhances Immune Development by Expanding Immune Cell Progenitors and Mature Immune Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1740-1751. [PMID: 37074206 PMCID: PMC10192123 DOI: 10.4049/jimmunol.2300061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/24/2023] [Indexed: 04/20/2023]
Abstract
Microbial experience fundamentally shapes immunity, particularly during the perinatal period when the immune system is underdeveloped, and novel microbial encounters are common. Most animal models are raised in specific pathogen-free (SPF) conditions with relatively uniform microbial communities. How SPF housing conditions alter early-life immune development relative to natural microbial exposure (NME) has not been thoroughly investigated. In this article, we compare immune development in SPF-raised mice with mice born from immunologically experienced mothers in microbially diverse environments. NME induced broad immune cell expansion, including naive cells, suggesting mechanisms besides activation-induced proliferation contribute to the increase in immune cell numbers. We found NME conditions also expanded immune cell progenitor cell populations in the bone marrow, suggesting microbial experience enhances immune development at the earliest stages of immune cell differentiation. Multiple immune functions characteristically impaired in infants were also enhanced by NME, including T cell memory and Th1 polarization, B cell class switching and Ab production, proinflammatory cytokine expression, and bacterial clearance after Listeria monocytogenes challenge. Collectively, our studies reveal numerous impairments in immune development in SPF conditions relative to natural immune development.
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Affiliation(s)
- Sarah Burger
- Center for Immunology, Minneapolis, MN, USA
- Department of Pediatrics, Minneapolis, MN, USA
| | - Terran Stenger
- Center for Immunology, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, Minneapolis, MN, USA
| | - Mark Pierson
- Center for Immunology, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, Minneapolis, MN, USA
| | - Adhvaith Sridhar
- Center for Immunology, Minneapolis, MN, USA
- Department of Pediatrics, Minneapolis, MN, USA
| | - Matthew A. Huggins
- Center for Immunology, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, Minneapolis, MN, USA
| | | | - Thomas S. Griffith
- Center for Immunology, Minneapolis, MN, USA
- Department of Urology, Minneapolis, MN, USA
- Microbiology, Immunology, and Cancer Biology PhD Program, Minneapolis, MN, USA
- Masonic Cancer Center, Minneapolis, MN, USA
- Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Sara E. Hamilton
- Center for Immunology, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, Minneapolis, MN, USA
- Microbiology, Immunology, and Cancer Biology PhD Program, Minneapolis, MN, USA
- Masonic Cancer Center, Minneapolis, MN, USA
| | - Nathaniel J. Schuldt
- Center for Immunology, Minneapolis, MN, USA
- Department of Pediatrics, Minneapolis, MN, USA
- Masonic Cancer Center, Minneapolis, MN, USA
- Lead Contact
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16
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Cai L, Rodgers E, Schoenmann N, Raju RP. Advances in Rodent Experimental Models of Sepsis. Int J Mol Sci 2023; 24:9578. [PMID: 37298529 PMCID: PMC10253762 DOI: 10.3390/ijms24119578] [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: 03/27/2023] [Revised: 05/09/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
In the development of therapeutic strategies for human diseases, preclinical experimental models have a key role. However, the preclinical immunomodulatory therapies developed using rodent sepsis were not successful in human clinical trials. Sepsis is characterized by a dysregulated inflammation and redox imbalance triggered by infection. Human sepsis is simulated in experimental models using methods that trigger inflammation or infection in the host animals, most often mice or rats. It remains unknown whether the characteristics of the host species, the methods used to induce sepsis, or the molecular processes focused upon need to be revisited in the development of treatment methods that will succeed in human clinical trials. Our goal in this review is to provide a survey of existing experimental models of sepsis, including the use of humanized mice and dirty mice, and to show how these models reflect the clinical course of sepsis. We will discuss the strengths and limitations of these models and present recent advances in this subject area. We maintain that rodent models continue to have an irreplaceable role in studies toward discovering treatment methods for human sepsis.
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Affiliation(s)
- Lun Cai
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Elizabeth Rodgers
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Nick Schoenmann
- Department of Emergency Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Raghavan Pillai Raju
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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17
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Little-Letsinger SE, Hamilton SE. Leveraging mice with diverse microbial exposures for advances in osteoimmunology. Front Endocrinol (Lausanne) 2023; 14:1168552. [PMID: 37251680 PMCID: PMC10210590 DOI: 10.3389/fendo.2023.1168552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/21/2023] [Indexed: 05/31/2023] Open
Abstract
The skeletal and immune systems are intricately intertwined within the bone marrow microenvironment, a field of study termed osteoimmunology. Osteoimmune interactions are key players in bone homeostasis and remodeling. Despite the critical role of the immune system in bone health, virtually all animal research in osteoimmunology, and more broadly bone biology, relies on organisms with naïve immune systems. Drawing on insights from osteoimmunology, evolutionary anthropology, and immunology, this perspective proposes the use of a novel translational model: the dirty mouse. Dirty mice, characterized by diverse exposures to commensal and pathogenic microbes, have mature immune systems comparable to adult humans, while the naïve immune system of specific-pathogen free mice is akin to a neonate. Investigation into the dirty mouse model will likely yield important insights in our understanding of bone diseases and disorders. A high benefit of this model is expected for diseases known to have a connection between overactivation of the immune system and negative bone outcomes, including aging and osteoporosis, rheumatoid arthritis, HIV/AIDS, obesity and diabetes, bone marrow metastases, and bone cancers.
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Affiliation(s)
| | - Sara E. Hamilton
- Department of Laboratory Medicine and Pathology, Center for Immunology, University of Minnesota, Minneapolis, MN, United States
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18
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Oyesola O, Downie AE, Howard N, Barre RS, Kiwanuka K, Zaldana K, Chen YH, Menezes A, Lee SC, Devlin J, Mondragón-Palomino O, Souza COS, Herrmann C, Koralov S, Cadwell K, Graham AL, Loke P. Genetic and Environmental interactions contribute to immune variation in rewilded mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.17.533121. [PMID: 36993484 PMCID: PMC10055251 DOI: 10.1101/2023.03.17.533121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
The relative and synergistic contributions of genetics and environment to inter-individual immune response variation remain unclear, despite its implications for understanding both evolutionary biology and medicine. Here, we quantify interactive effects of genotype and environment on immune traits by investigating three inbred mouse strains rewilded in an outdoor enclosure and infected with the parasite, Trichuris muris. Whereas cytokine response heterogeneity was primarily driven by genotype, cellular composition heterogeneity was shaped by interactions between genotype and environment. Notably, genetic differences under laboratory conditions can be decreased following rewilding, and variation in T cell markers are more driven by genetics, whereas B cell markers are driven more by environment. Importantly, variation in worm burden is associated with measures of immune variation, as well as genetics and environment. These results indicate that nonheritable influences interact with genetic factors to shape immune variation, with synergistic impacts on the deployment and evolution of defense mechanisms.
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Affiliation(s)
- Oyebola Oyesola
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Alexander E. Downie
- Department of Ecology and Evolutionary Biology, Princeton University; Princeton, NJ, USA
| | - Nina Howard
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Ramya S. Barre
- Department of Ecology and Evolutionary Biology, Princeton University; Princeton, NJ, USA
| | - Kasalina Kiwanuka
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Kimberly Zaldana
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Ying-Han Chen
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine; New York, NY, USA
| | - Arthur Menezes
- Department of Ecology and Evolutionary Biology, Princeton University; Princeton, NJ, USA
| | - Soo Ching Lee
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Joseph Devlin
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine; New York, NY, USA
| | - Octavio Mondragón-Palomino
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Camila Oliveira Silva Souza
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
| | - Christin Herrmann
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine; New York, NY, USA
| | - Sergei Koralov
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine; New York, NY, USA
| | - Ken Cadwell
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University, Grossman School of Medicine; New York, NY, USA
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Andrea L. Graham
- Department of Ecology and Evolutionary Biology, Princeton University; Princeton, NJ, USA
- Santa Fe Institute, Santa Fe, NM, USA
| | - P’ng Loke
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institute of Health; Bethesda, MD, USA
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19
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Derksen LY, Tesselaar K, Borghans JAM. Memories that last: Dynamics of memory T cells throughout the body. Immunol Rev 2023. [PMID: 37114435 DOI: 10.1111/imr.13211] [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] [Indexed: 04/29/2023]
Abstract
Memory T cells form an essential part of immunological memory, which can last for years or even a lifetime. Much experimental work has shown that the individual cells that make up the memory T-cell pool are in fact relatively short-lived. Memory T cells isolated from the blood of humans, or the lymph nodes and spleen of mice, live about 5-10 fold shorter than naive T cells, and much shorter than the immunological memory they convey. The commonly accepted view is, therefore, that long-term T-cell memory is maintained dynamically rather than by long-lived cells. This view is largely based on memory T cells in the circulation, identified using rather broad phenotypic markers, and on research in mice living in overly clean conditions. We wondered to what extent there may be heterogeneity in the dynamics and lifespans of memory T cells. We here review what is currently known about the dynamics of memory T cells in different memory subsets, locations in the body and conditions of microbial exposure, and discuss how this may be related to immunometabolism and how this knowledge can be used in various clinical settings.
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Affiliation(s)
- Lyanne Y Derksen
- Leukocyte Dynamics Group, Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kiki Tesselaar
- Leukocyte Dynamics Group, Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - José A M Borghans
- Leukocyte Dynamics Group, Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
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20
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Abstract
Immunity to infection has been extensively studied in humans and mice bearing naturally occurring or experimentally introduced germline mutations. Mouse studies are sometimes neglected by human immunologists, on the basis that mice are not humans and the infections studied are experimental and not natural. Conversely, human studies are sometimes neglected by mouse immunologists, on the basis of the uncontrolled conditions of study and small numbers of patients. However, both sides would agree that the infectious phenotypes of patients with inborn errors of immunity often differ from those of the corresponding mutant mice. Why is that? We argue that this important question is best addressed by revisiting and reinterpreting the findings of both mouse and human studies from a genetic perspective. Greater caution is required for reverse-genetics studies than for forward-genetics studies, but genetic analysis is sufficiently strong to define the studies likely to stand the test of time. Genetically robust mouse and human studies can provide invaluable complementary insights into the mechanisms of immunity to infection common and specific to these two species.
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Affiliation(s)
- Philippe Gros
- McGill University Research Center on Complex Traits, Department of Biochemistry, and Department of Human Genetics, McGill University, Montréal, Québec, Canada;
| | - Jean-Laurent Casanova
- Howard Hughes Medical Institute and St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA;
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM, and University of Paris Cité, Imagine Institute and Necker Hospital for Sick Children, Paris, France
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21
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Tekguc M, Gaal RCVAN, Uzel SGM, Gupta N, Riella LV, Lewis JA, Morizane R. Kidney organoids: a pioneering model for kidney diseases. Transl Res 2022; 250:1-17. [PMID: 35750295 PMCID: PMC9691572 DOI: 10.1016/j.trsl.2022.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 11/18/2022]
Abstract
The kidney is a vital organ that regulates the bodily fluid and electrolyte homeostasis via tailored urinary excretion. Kidney injuries that cause severe or progressive chronic kidney disease have driven the growing population of patients with end-stage kidney disease, leading to substantial patient morbidity and mortality. This irreversible kidney damage has also created a huge socioeconomical burden on the healthcare system, highlighting the need for novel translational research models for progressive kidney diseases. Conventional research methods such as in vitro 2D cell culture or animal models do not fully recapitulate complex human kidney diseases. By contrast, directed differentiation of human induced pluripotent stem cells enables in vitro generation of patient-specific 3D kidney organoids, which can be used to model acute or chronic forms of hereditary, developmental, and metabolic kidney diseases. Furthermore, when combined with biofabrication techniques, organoids can be used as building blocks to construct vascularized kidney tissues mimicking their in vivo counterpart. By applying gene editing technology, organoid building blocks may be modified to minimize the process of immune rejection in kidney transplant recipients. In the foreseeable future, the universal kidney organoids derived from HLA-edited/deleted induced pluripotent stem cell (iPSC) lines may enable the supply of bioengineered organotypic kidney structures that are immune-compatible for the majority of the world population. Here, we summarize recent advances in kidney organoid research coupled with novel technologies such as organoids-on-chip and biofabrication of 3D kidney tissues providing convenient platforms for high-throughput drug screening, disease modelling, and therapeutic applications.
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Affiliation(s)
- Murat Tekguc
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Harvard Stem Cell Institute (HSCI), Cambridge, Massachusetts
| | - Ronald C VAN Gaal
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts; School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | - Sebastien G M Uzel
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts; School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | - Navin Gupta
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Harvard Stem Cell Institute (HSCI), Cambridge, Massachusetts
| | - Leonardo V Riella
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Center for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Jennifer A Lewis
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts; School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts
| | - Ryuji Morizane
- Nephrology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Harvard Stem Cell Institute (HSCI), Cambridge, Massachusetts; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts.
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22
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Block KE, Iijima K, Pierson MJ, Walsh DA, Tei R, Kucaba TA, Xu J, Khan MH, Staley C, Griffith TS, McSorley HJ, Kita H, Jameson SC. Physiological microbial exposure transiently inhibits mouse lung ILC2 responses to allergens. Nat Immunol 2022; 23:1703-1713. [PMID: 36411381 PMCID: PMC9974086 DOI: 10.1038/s41590-022-01350-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 10/05/2022] [Indexed: 11/22/2022]
Abstract
Lung group 2 innate lymphoid cells (ILC2s) control the nature of immune responses to airway allergens. Some microbial products, including those that stimulate interferons, block ILC2 activation, but whether this occurs after natural infections or causes durable ILC2 inhibition is unclear. In the present study, we cohoused laboratory and pet store mice as a model of physiological microbial exposure. Laboratory mice cohoused for 2 weeks had impaired ILC2 responses and reduced lung eosinophilia to intranasal allergens, whereas these responses were restored in mice cohoused for ≥2 months. ILC2 inhibition at 2 weeks correlated with increased interferon receptor signaling, which waned by 2 months of cohousing. Reinduction of interferons in 2-month cohoused mice blocked ILC2 activation. These findings suggest that ILC2s respond dynamically to environmental cues and that microbial exposures do not control long-term desensitization of innate type 2 responses to allergens.
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Affiliation(s)
- Katharine E Block
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Koji Iijima
- Division of Allergy, Asthma and Clinical Immunology and Department of Medicine, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Mark J Pierson
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Daniel A Walsh
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
| | - Rinna Tei
- Division of Allergy, Asthma and Clinical Immunology and Department of Medicine, Mayo Clinic Arizona, Scottsdale, AZ, USA
- Department of Pulmonary Medicine and Clinical Immunology, Dokkyo Medical University, Tochigi, Japan
| | - Tamara A Kucaba
- Department of Urology, University of Minnesota, Minneapolis, MN, USA
| | - Julie Xu
- Department of Urology, University of Minnesota, Minneapolis, MN, USA
| | | | | | - Thomas S Griffith
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
- Department of Urology, University of Minnesota, Minneapolis, MN, USA
| | - Henry J McSorley
- Division of Cell signaling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Hirohito Kita
- Division of Allergy, Asthma and Clinical Immunology and Department of Medicine, Mayo Clinic Arizona, Scottsdale, AZ, USA.
| | - Stephen C Jameson
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA.
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA.
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23
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Sjaastad FV, Huggins MA, Lucas ED, Skon-Hegg C, Swanson W, Martin MD, Salgado OC, Xu J, Pierson M, Dileepan T, Kucaba TA, Hamilton SE, Griffith TS. Reduced T Cell Priming in Microbially Experienced "Dirty" Mice Results from Limited IL-27 Production by XCR1+ Dendritic Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:2149-2159. [PMID: 36426978 PMCID: PMC10065988 DOI: 10.4049/jimmunol.2200324] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/28/2022] [Indexed: 01/04/2023]
Abstract
Successful vaccination strategies offer the potential for lifelong immunity against infectious diseases and cancer. There has been increased attention regarding the limited translation of some preclinical findings generated using specific pathogen-free (SPF) laboratory mice to humans. One potential reason for the difference between preclinical and clinical findings lies in maturation status of the immune system at the time of challenge. In this study, we used a "dirty" mouse model, where SPF laboratory mice were cohoused (CoH) with pet store mice to permit microbe transfer and immune system maturation, to investigate the priming of a naive T cell response after vaccination with a peptide subunit mixed with polyinosinic-polycytidylic acid and agonistic anti-CD40 mAb. Although this vaccination platform induced robust antitumor immunity in SPF mice, it failed to do so in microbially experienced CoH mice. Subsequent investigation revealed that despite similar numbers of Ag-specific naive CD4 and CD8 T cell precursors, the expansion, differentiation, and recall responses of these CD4 and CD8 T cell populations in CoH mice were significantly reduced compared with SPF mice after vaccination. Evaluation of the dendritic cell compartment revealed reduced IL-27p28 expression by XCR1+ dendritic cells from CoH mice after vaccination, correlating with reduced T cell expansion. Importantly, administration of recombinant IL-27:EBI3 complex to CoH mice shortly after vaccination significantly boosted Ag-specific CD8 and CD4 T cell expansion, further implicating the defect to be T cell extrinsic. Collectively, our data show the potential limitation of exclusive use of SPF mice when testing vaccine efficacy.
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Affiliation(s)
- Frances V Sjaastad
- Department of Urology, University of Minnesota, Minneapolis, MN
- Microbiology, Immunology, and Cancer Biology Ph.D. Program, University of Minnesota, Minneapolis, MN
| | - Matthew A Huggins
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
| | - Erin D Lucas
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
| | - Cara Skon-Hegg
- Department of Urology, University of Minnesota, Minneapolis, MN
| | - Whitney Swanson
- Department of Urology, University of Minnesota, Minneapolis, MN
| | | | - Oscar C Salgado
- Microbiology, Immunology, and Cancer Biology Ph.D. Program, University of Minnesota, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
| | - Julie Xu
- Department of Urology, University of Minnesota, Minneapolis, MN
| | - Mark Pierson
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
| | - Thamotharampillai Dileepan
- Center for Immunology, University of Minnesota, Minneapolis, MN
- Department of Microbiology & Immunology, University of Minnesota, Minneapolis, MN
| | - Tamara A Kucaba
- Department of Urology, University of Minnesota, Minneapolis, MN
| | - Sara E Hamilton
- Microbiology, Immunology, and Cancer Biology Ph.D. Program, University of Minnesota, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN
- Center for Immunology, University of Minnesota, Minneapolis, MN
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN; and
| | - Thomas S Griffith
- Department of Urology, University of Minnesota, Minneapolis, MN
- Microbiology, Immunology, and Cancer Biology Ph.D. Program, University of Minnesota, Minneapolis, MN
- Center for Immunology, University of Minnesota, Minneapolis, MN
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN; and
- Minneapolis VA Health Care System, Minneapolis, MN
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24
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Berton RR, Jensen IJ, Harty JT, Griffith TS, Badovinac VP. Inflammation Controls Susceptibility of Immune-Experienced Mice to Sepsis. Immunohorizons 2022; 6:528-542. [PMID: 35878936 PMCID: PMC9650784 DOI: 10.4049/immunohorizons.2200050] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 11/19/2022] Open
Abstract
Sepsis, an amplified immune response to systemic infection that leads to life-threatening organ dysfunction, affects >125,000 people/day worldwide with 20% mortality. Modest therapeutic progress for sepsis has been made, in part because of the lack of therapeutic translatability between mouse-based experimental models and humans. One potential reason for this difference stems from the extensive use of immunologically naive specific pathogen-free mice in preclinical research. To address this issue, we used sequential infections with well-defined BSL-2 pathogens to establish a novel immune-experienced mouse model (specific pathogen experienced [SPexp]) to determine the extent to which immunological experience and/or inflammation influences the host capacity to respond to subsequent infections, including sepsis. Consistent with their immunological experience, SPexp inbred or outbred mice had significant changes in the composition and activation status of multiple leukocyte populations known to influence the severity of cecal ligation and puncture-induced sepsis. Importantly, by varying the timing of sepsis induction, we found the level of basal inflammation controls sepsis-induced morbidity and mortality in SPexp mice. In addition, although a beneficial role of NK cells in sepsis was recently demonstrated in specific pathogen-free mice, NK cell depletion before cecal ligation and puncture induction in SPexp mice lead to diminished mortality, suggesting NK cells may have beneficial or detrimental roles in the response to septic insult dependent on host immune status. Thus, data highlight the importance of utilizing immune-experienced models for preclinical studies to interrogate the cellular/molecular mechanism(s) that could be therapeutically exploited during severe and dysregulated infection-induced inflammatory responses, such as sepsis.
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Affiliation(s)
- Roger R Berton
- Department of Pathology, University of Iowa, Iowa City, IA.,Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
| | - Isaac J Jensen
- Department of Pathology, University of Iowa, Iowa City, IA.,Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA.,Department of Microbiology and Immunology, Columbia University, New York, NY
| | - John T Harty
- Department of Pathology, University of Iowa, Iowa City, IA.,Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
| | - Thomas S Griffith
- Department of Urology, University of Minnesota, Minneapolis, MN; and.,Minneapolis VA Health Care System, Minneapolis, MN
| | - Vladimir P Badovinac
- Department of Pathology, University of Iowa, Iowa City, IA; .,Interdisciplinary Program in Immunology, University of Iowa, Iowa City, IA
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25
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Rahimi RA, Cho JL, Jakubzick CV, Khader SA, Lambrecht BN, Lloyd CM, Molofsky AB, Talbot S, Bonham CA, Drake WP, Sperling AI, Singer BD. Advancing Lung Immunology Research: An Official American Thoracic Society Workshop Report. Am J Respir Cell Mol Biol 2022; 67:e1-18. [PMID: 35776495 PMCID: PMC9273224 DOI: 10.1165/rcmb.2022-0167st] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The mammalian airways and lungs are exposed to a myriad of inhaled particulate matter, allergens, and pathogens. The immune system plays an essential role in protecting the host from respiratory pathogens, but a dysregulated immune response during respiratory infection can impair pathogen clearance and lead to immunopathology. Furthermore, inappropriate immunity to inhaled antigens can lead to pulmonary diseases. A complex network of epithelial, neural, stromal, and immune cells has evolved to sense and respond to inhaled antigens, including the decision to promote tolerance versus a rapid, robust, and targeted immune response. Although there has been great progress in understanding the mechanisms governing immunity to respiratory pathogens and aeroantigens, we are only beginning to develop an integrated understanding of the cellular networks governing tissue immunity within the lungs and how it changes after inflammation and over the human life course. An integrated model of airway and lung immunity will be necessary to improve mucosal vaccine design as well as prevent and treat acute and chronic inflammatory pulmonary diseases. Given the importance of immunology in pulmonary research, the American Thoracic Society convened a working group to highlight central areas of investigation to advance the science of lung immunology and improve human health.
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26
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Larval exposure to parasitic Varroa destructor mites triggers specific immune responses in different honey bee castes and species. Mol Cell Proteomics 2022; 21:100257. [PMID: 35710070 PMCID: PMC9418504 DOI: 10.1016/j.mcpro.2022.100257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/03/2022] [Accepted: 06/09/2022] [Indexed: 12/03/2022] Open
Abstract
Innate immune systems are key defenses of animals and particularly important in species that lack the sophisticated adaptive immune systems as found in vertebrates. Here, we were interested to quantify variation in innate immune responses of insects in hosts that differ in their parasite susceptibility. To do this, we studied immune responses in honey bees, which can host a remarkable number of different parasites, which are major contributors of declining bee health and colony losses. The most significant parasite of honey bees is the mite Varroa destructor, which has infested the majority of global honey bee populations, and its control remains a major challenge for beekeepers. However, a number of nonmanaged honey bees seem able to control Varroa infections, for example, the Eastern honey bee Apis ceranacerana or the African honey bee Apis mellifera scutellata. These bees therefore make interesting study subjects to identify underlaying resistance traits, for example, by comparing them to more susceptible bee genotypes such as Western honey bees (A. melliferaligustica). We conducted a series of interlinked experiments and started with behavioral assays to compare the attractiveness of bee larvae to mites using different honey bee genotypes and castes. We found that 6-day-old larvae are always most attractive to mites, independently of genotype or castes. In a next step, we compared volatile profiles of the most attractive larvae to test whether they could be used by mites for host selection. We found that the abundance of volatile compounds differed between larval ages, but we also found significant differences between genotypes and castes. To further study the expected underlaying physiological differences between potentially resistant and susceptible host larvae, we compared the larval hemolymph proteomes of the three honey bee genotypes and two castes in response to mite exposure. We identified consistent upregulation of immune and stress-related genes in Varroa-exposed larvae, which differed between genotypes and castes. Tolerant honey bee castes and genotypes were characterized by stronger or more distinct immune esponses. In summary, we provide first insights into the complex involvement of the innate immune system of tolerant honey bees against mite infestations, which could be used for future breeding purposes. Honey bee larvae are most susceptible to mite infestations shortly before brood cell capping. Larval attractiveness to mites is independent of bee caste or genotype. Volatile compound abundance differed between genotypes, castes, and larval ages. Mite exposure induces specific immune and stress responses in different genotypes and castes.
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27
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Gisterå A, Ketelhuth DFJ, Malin SG, Hansson GK. Animal Models of Atherosclerosis-Supportive Notes and Tricks of the Trade. Circ Res 2022; 130:1869-1887. [PMID: 35679358 DOI: 10.1161/circresaha.122.320263] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Atherosclerotic cardiovascular disease is a major cause of death among humans. Animal models have shown that cholesterol and inflammation are causatively involved in the disease process. Apolipoprotein B-containing lipoproteins elicit immune reactions and instigate inflammation in the vessel wall. Still, a treatment that is specific to vascular inflammation is lacking, which motivates continued in vivo investigations of the immune-vascular interactions that drive the disease. In this review, we distill old notions with emerging concepts into a contemporary understanding of vascular disease models. Pros and cons of different models are listed and the complex integrative interplay between cholesterol homeostasis, immune activation, and adaptations of the vascular system is discussed. Key limitations with atherosclerosis models are highlighted, and we suggest improvements that could accelerate progress in the field. However, excessively rigid experimental guidelines or limiting usage to certain animal models can be counterproductive. Continued work in improved models, as well as the development of new models, should be of great value in research and could aid the development of cardiovascular disease diagnostics and therapeutics of the future.
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Affiliation(s)
- Anton Gisterå
- Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden (A.G., D.F.J.K., S.G.M., G.K.H.)
| | - Daniel F J Ketelhuth
- Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden (A.G., D.F.J.K., S.G.M., G.K.H.).,Department of Cardiovascular and Renal Research, Institute for Molecular Medicine, University of Southern Denmark (SDU), Odense, Denmark (D.F.J.K)
| | - Stephen G Malin
- Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden (A.G., D.F.J.K., S.G.M., G.K.H.)
| | - Göran K Hansson
- Cardiovascular Medicine, Department of Medicine Solna, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden (A.G., D.F.J.K., S.G.M., G.K.H.)
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28
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Zhang H, Bednář L, Heitlinger E, Hartmann S, Rausch S. Whip- and pinworm infections elicit contrasting effector and distinct regulatory responses in wild house mice. Int J Parasitol 2022; 52:519-524. [PMID: 35533731 DOI: 10.1016/j.ijpara.2022.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 03/25/2022] [Accepted: 03/30/2022] [Indexed: 12/30/2022]
Abstract
Infections with high doses of intestinal nematodes result in protective immunity based on robust type 2 responses in most mouse lines under laboratory conditions. Here, we report on cellular responses of wild house mice from northern Germany. We detected robust Th1 responses in wild house mice naturally infected with the whipworm Trichuris muris. In contrast, mice infected with pinworms (Syphacia, Aspiculuris) reported type-2 activity by elevated IgG1 levels and eosinophil counts, but also harbored high frequencies of Foxp3+ Treg cells, suggesting that natural whip- and pinworm infections induce distinct immunoregulatory as well as effector profiles.
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Affiliation(s)
- Hongwei Zhang
- Institute of Immunology, Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Lubomír Bednář
- Humboldt Universität Berlin, Molecular Parasitology, Berlin, Germany
| | - Emanuel Heitlinger
- Humboldt Universität Berlin, Leibniz Institute for Zoo and Wildlife Research, Ecology and Evolution of Molecular Parasite-Host Interactions, Berlin, Germany
| | - Susanne Hartmann
- Institute of Immunology, Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Sebastian Rausch
- Institute of Immunology, Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany.
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29
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Long-distance relationships - regulation of systemic host defense against infections by the gut microbiota. Mucosal Immunol 2022; 15:809-818. [PMID: 35732817 DOI: 10.1038/s41385-022-00539-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/29/2022] [Accepted: 06/04/2022] [Indexed: 02/04/2023]
Abstract
Despite compartmentalization within the lumen of the gastrointestinal tract, the gut microbiota has a far-reaching influence on immune cell development and function throughout the body. This long-distance relationship is crucial for immune homeostasis, including effective host defense against invading pathogens that cause systemic infections. Herein, we review new insights into how commensal microbes that are spatially restricted to the gut lumen can engage in long-distance relationships with innate and adaptive immune cells at systemic sites to fortify host defenses against infections. In addition, we explore the consequences of intestinal dysbiosis on impaired host defense and immune-mediated pathology during infections, including emerging evidence linking dysbiosis with aberrant systemic inflammation and immune-mediated organ damage in sepsis. As such, therapeutic modification of the gut microbiota is an emerging target for interventions to prevent and/or treat systemic infections and sepsis by harnessing the long-distance relationships between gut microbes and systemic immunity.
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30
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Oyesola OO, Souza COS, Loke P. The Influence of Genetic and Environmental Factors and Their Interactions on Immune Response to Helminth Infections. Front Immunol 2022; 13:869163. [PMID: 35572520 PMCID: PMC9103684 DOI: 10.3389/fimmu.2022.869163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/04/2022] [Indexed: 12/20/2022] Open
Abstract
Helminth infection currently affect over 2 billion people worldwide, with those with the most pathologies and morbidities, living in regions with unequal and disproportionate access to effective healthcare solutions. Host genetics and environmental factors play critical roles in modulating and regulating immune responses following exposure to various pathogens and insults. However, the interplay of environment and genetic factors in influencing who gets infected and the establishment, persistence, and clearance of helminth parasites remains unclear. Inbred strains of mice have long been used to investigate the role of host genetic factors on pathogenesis and resistance to helminth infection in a laboratory setting. This review will discuss the use of ecological and environmental mouse models to study helminth infections and how this could be used in combination with host genetic variation to explore the relative contribution of these factors in influencing immune response to helminth infections. Improved understanding of interactions between genetics and the environment to helminth immune responses would be important for efforts to identify and develop new prophylactic and therapeutic options for the management of helminth infections and their pathogenesis.
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31
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Effects of Traumatic Brain Injury on the Gut Microbiota Composition and Serum Amino Acid Profile in Rats. Cells 2022; 11:cells11091409. [PMID: 35563713 PMCID: PMC9102408 DOI: 10.3390/cells11091409] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 02/04/2023] Open
Abstract
Traumatic brain injury (TBI) heavily impacts the body: it damages the brain tissue and the peripheral nervous system and shifts homeostasis in many types of tissue. An acute brain injury compromises the “brain–gut-microbiome axis”, a well-balanced network formed by the brain, gastrointestinal tract, and gut microbiome, which has a complex effect: damage to the brain alters the composition of the microbiome; the altered microbiome affects TBI severity, neuroplasticity, and metabolic pathways through various bacterial metabolites. We modeled TBI in rats. Using a bioinformatics approach, we sought to identify correlations between the gut microbiome composition, TBI severity, the rate of neurological function recovery, and blood metabolome. We found that the TBI caused changes in the abundance of 26 bacterial genera. The most dramatic change was observed in the abundance of Agathobacter species. The TBI also altered concentrations of several metabolites, specifically citrulline and tryptophan. We found no significant correlations between TBI severity and the pre-existing gut microbiota composition or blood metabolites. However, we discovered some differences between the two groups of subjects that showed high and low rates of neurological function recovery, respectively. The present study highlights the role of the brain–gut-microbiome axis in TBI.
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32
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Berridge BR. Animal Study Translation: The Other Reproducibility Challenge. ILAR J 2022. [DOI: 10.1093/ilar/ilac005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Animal research is currently an irreplaceable contributor to our efforts to protect and improve public health. Its relevance, importance, and contributions are represented in historical precedent, regulatory expectations, evidence of our rapidly developing understanding of human health and disease, as well as success in the development of novel therapeutics that are improving quality of life and extending human and animal life expectancy. The rapid and evolving success in responding to the current COVID pandemic significantly supported by animal studies is a clear example of the importance of animal research. But there is growing interest in reducing our dependence on animals and challenges to the effective translation of current animal studies to human applications. There are several potential contributors to gaps in the translatability of animal research to humans, including our approaches to choosing or rationalizing the relevance of a particular animal model, our understanding of their biological variability and how that applies to outcomes, the data we collect from animal studies, and even how we manage the animals. These important contributors to the success of animal research are explored in this issue of the ILAR Journal.
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Affiliation(s)
- Brian R Berridge
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences in Research, Triangle Park, North Carolina, USA
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33
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Feraoun Y, Palgen JL, Joly C, Tchitchek N, Marcos-Lopez E, Dereuddre-Bosquet N, Gallouet AS, Contreras V, Lévy Y, Martinon F, Le Grand R, Beignon AS. The Route of Vaccine Administration Determines Whether Blood Neutrophils Undergo Long-Term Phenotypic Modifications. Front Immunol 2022; 12:784813. [PMID: 35058925 PMCID: PMC8764446 DOI: 10.3389/fimmu.2021.784813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
Innate immunity modulates adaptive immunity and defines the magnitude, quality, and longevity of antigen-specific T- and B- cell immune memory. Various vaccine and administration factors influence the immune response to vaccination, including the route of vaccine delivery. We studied the dynamics of innate cell responses in blood using a preclinical model of non-human primates immunized with a live attenuated vaccinia virus, a recombinant Modified vaccinia virus Ankara (MVA) expressing a gag-pol-nef fusion of HIV-1, and mass cytometry. We previously showed that it induces a strong, early, and transient innate response, but also late phenotypic modifications of blood myeloid cells after two months when injected subcutaneously. Here, we show that the early innate effector cell responses and plasma inflammatory cytokine profiles differ between subcutaneous and intradermal vaccine injection. Additionally, we show that the intradermal administration fails to induce more highly activated/mature neutrophils long after immunization, in contrast to subcutaneous administration. Different batches of antibodies, staining protocols and generations of mass cytometers were used to generate the two datasets. Mass cytometry data were analyzed in parallel using the same analytical pipeline based on three successive clustering steps, including SPADE, and categorical heatmaps were compared using the Manhattan distance to measure the similarity between cell cluster phenotypes. Overall, we show that the vaccine per se is not sufficient for the late phenotypic modifications of innate myeloid cells, which are evocative of innate immune training. Its route of administration is also crucial, likely by influencing the early innate response, and systemic inflammation, and vaccine biodistribution.
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Affiliation(s)
- Yanis Feraoun
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Jean-Louis Palgen
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Candie Joly
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Nicolas Tchitchek
- UMR_S 959, Immunology-Immunopathology-Immunotherapy (i3), Sorbonne Université and Inserm, Paris, France
| | - Ernesto Marcos-Lopez
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Nathalie Dereuddre-Bosquet
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Anne-Sophie Gallouet
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Vanessa Contreras
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Yves Lévy
- INSERM U955, Henri Mondor Hospital, University of Paris East, Créteil, France.,Vaccine Research Institute (VRI), Créteil, France
| | - Frédéric Martinon
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Roger Le Grand
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
| | - Anne-Sophie Beignon
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-Immune, Hematological and Bacterial Diseases (IMVA-HB/IDMIT), Fontenay-aux-Roses, France
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34
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Kim JH, Bryant H, Fiedler E, Cao T, Rayner JO. Real-time tracking of bioluminescent influenza A virus infection in mice. Sci Rep 2022; 12:3152. [PMID: 35210462 PMCID: PMC8873407 DOI: 10.1038/s41598-022-06667-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/04/2022] [Indexed: 01/13/2023] Open
Abstract
Despite the availability of vaccines and antiviral therapies, seasonal influenza infections cause 400,000 human deaths on average per year. Low vaccine coverage and the occurrence of drug-resistant viral strains highlight the need for new and improved countermeasures. While influenza A virus (IAV) engineered to express a reporter gene may serve as a valuable tool for real-time tracking of viral infection, reporter gene insertion into IAV typically attenuates viral pathogenicity, hindering its application to research. Here, we demonstrate that lethal or even sublethal doses of bioluminescent IAV carrying the NanoLuc gene in the C-terminus of PB2 can be tracked in real-time in live mice without compromising pathogenicity. Real-time tracking of this bioluminescent IAV enables spatiotemporal viral replication tracking in animals that will facilitate the development of countermeasures by enhancing the interpretation of clinical signs and prognosis while also allowing less animal usage.
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Affiliation(s)
- Jin H Kim
- Department of Microbiology and Immunology, College of Medicine, University of South Alabama, Mobile, AL, 36688, USA. .,Center for Lung Biology, College of Medicine, University of South Alabama, Mobile, AL, 36688, USA.
| | - Hannah Bryant
- Department of Comparative Medicine, College of Medicine, University of South Alabama, Mobile, AL, 36688, USA
| | - Edward Fiedler
- Department of Microbiology and Immunology, College of Medicine, University of South Alabama, Mobile, AL, 36688, USA
| | - TuAnh Cao
- Department of Microbiology and Immunology, College of Medicine, University of South Alabama, Mobile, AL, 36688, USA
| | - Jonathan O Rayner
- Department of Microbiology and Immunology, College of Medicine, University of South Alabama, Mobile, AL, 36688, USA
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35
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Roquilly A, Mintern JD, Villadangos JA. Spatiotemporal Adaptations of Macrophage and Dendritic Cell Development and Function. Annu Rev Immunol 2022; 40:525-557. [PMID: 35130030 DOI: 10.1146/annurev-immunol-101320-031931] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Macrophages and conventional dendritic cells (cDCs) are distributed throughout the body, maintaining tissue homeostasis and tolerance to self and orchestrating innate and adaptive immunity against infection and cancer. As they complement each other, it is important to understand how they cooperate and the mechanisms that integrate their functions. Both are exposed to commensal microbes, pathogens, and other environmental challenges that differ widely among anatomical locations and over time. To adjust to these varying conditions, macrophages and cDCs acquire spatiotemporal adaptations (STAs) at different stages of their life cycle that determine how they respond to infection. The STAs acquired in response to previous infections can result in increased responsiveness to infection, termed training, or in reduced responses, termed paralysis, which in extreme cases can cause immunosuppression. Understanding the developmental stage and location where macrophages and cDCs acquire their STAs, and the molecular and cellular players involved in their induction, may afford opportunities to harness their beneficial outcomes and avoid or reverse their deleterious effects. Here we review our current understanding of macrophage and cDC development, life cycle, function, and STA acquisition before, during, and after infection. We propose a unified framework to explain how these two cell types adjust their activities to changing conditions over space and time to coordinate their immunosurveillance functions. Expected final online publication date for the Annual Review of Immunology, Volume 40 is April 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Antoine Roquilly
- Center for Research in Transplantation and Translational Immunology, INSERM, UMR 1064, CHU Nantes, University of Nantes, Nantes, France
| | - Justine D Mintern
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Jose A Villadangos
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia.,Department of Microbiology and Immunology, Doherty Institute of Infection and Immunity, The University of Melbourne, Parkville, Victoria, Australia;
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36
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A spotlight on heightened T cell complexity and relevance in mucosal tissues. Mucosal Immunol 2022; 15:377-378. [PMID: 35197551 PMCID: PMC8864207 DOI: 10.1038/s41385-022-00485-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 02/04/2023]
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37
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Abstract
In a recent issue of Cell Host and Microbe, Fiege and colleagues1 report that laboratory mice exposed to pathogens from pet-store mice exhibit impaired humoral immunity to influenza vaccination and display gene expression signatures that more authentically reflect human vaccine responses.
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Affiliation(s)
- Lynda Coughlan
- Department of Microbiology and Immunology, Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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38
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Fiege JK, Block KE, Pierson MJ, Nanda H, Shepherd FK, Mickelson CK, Stolley JM, Matchett WE, Wijeyesinghe S, Meyerholz DK, Vezys V, Shen SS, Hamilton SE, Masopust D, Langlois RA. Mice with diverse microbial exposure histories as a model for preclinical vaccine testing. Cell Host Microbe 2021; 29:1815-1827.e6. [PMID: 34731647 DOI: 10.1016/j.chom.2021.10.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 08/30/2021] [Accepted: 10/08/2021] [Indexed: 12/13/2022]
Abstract
Laboratory mice comprise an expeditious model for preclinical vaccine testing; however, vaccine immunogenicity in these models often inadequately translates to humans. Reconstituting physiologic microbial experience to specific pathogen-free (SPF) mice induces durable immunological changes that better recapitulate human immunity. We examined whether mice with diverse microbial experience better model human responses post vaccination. We co-housed laboratory mice with pet-store mice, which have varied microbial exposures, and then assessed immune responses to influenza vaccines. Human transcriptional responses to influenza vaccination are better recapitulated in co-housed mice. Although SPF and co-housed mice were comparably susceptible to acute influenza infection, vaccine-induced humoral responses were dampened in co-housed mice, resulting in poor control upon challenge. Additionally, protective heterosubtypic T cell immunity was compromised in co-housed mice. Because SPF mice exaggerated humoral and T cell protection upon influenza vaccination, reconstituting microbial experience in laboratory mice through co-housing may better inform preclinical vaccine testing.
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Affiliation(s)
- Jessica K Fiege
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Katharine E Block
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Mark J Pierson
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Hezkiel Nanda
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Frances K Shepherd
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Clayton K Mickelson
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - J Michael Stolley
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - William E Matchett
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Sathi Wijeyesinghe
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - David K Meyerholz
- Department of Pathology, University of Iowa, Iowa City, IA 52242, USA
| | - Vaiva Vezys
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA
| | - Steven S Shen
- Institute for Health Informatics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Sara E Hamilton
- Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, USA.
| | - David Masopust
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Ryan A Langlois
- Department of Microbiology and Immunology, University of Minnesota, Minneapolis, MN 55455, USA; Center for Immunology, University of Minnesota, Minneapolis, MN 55455, USA.
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Dellinger RP, Levy MM, Schorr CA, Townsend SR. 50 Years of Sepsis Investigation/Enlightenment Among Adults-The Long and Winding Road. Crit Care Med 2021; 49:1606-1625. [PMID: 34342304 DOI: 10.1097/ccm.0000000000005203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- R Phillip Dellinger
- Cooper Medical School of Rowan University and Cooper University Health, Camden, NJ
| | | | - Christa A Schorr
- Cooper Medical School of Rowan University and Cooper University Health, Camden, NJ
| | - Sean R Townsend
- University of California Pacific Medical Center, (Sutter Health), San Francisco, CA
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40
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Oh JH, Rehermann B. Natural versus Laboratory World: Incorporating Wild-Derived Microbiota into Preclinical Rodent Models. THE JOURNAL OF IMMUNOLOGY 2021; 207:1703-1709. [PMID: 34544812 DOI: 10.4049/jimmunol.2100426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/28/2021] [Indexed: 01/12/2023]
Abstract
Advances in data collection (high-throughput shotgun metagenomics, transcriptomics, and metabolomics) and analysis (bioinformatics and multiomics) led to the realization that all mammals are metaorganisms, shaped not only by their own genome but also by the genomes of the microbes that colonize them. To date, most studies have focused on the bacterial microbiome, whereas curated databases for viruses, fungi, and protozoa are still evolving. Studies on the interdependency of microbial kingdoms and their combined effects on host physiology are just starting. Although it is clear that past and present exposure to commensals and pathogens profoundly affect human physiology, such exposure is lacking in standard preclinical models such as laboratory mice. Laboratory mouse colonies are repeatedly rederived in germ-free status and subjected to restrictive, pathogen-free housing conditions. This review summarizes efforts to bring the wild microbiome into the laboratory setting to improve preclinical models and their translational research value.
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Affiliation(s)
- Ji Hoon Oh
- Immunology Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
| | - Barbara Rehermann
- Immunology Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD
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41
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Glowacki RWP, Engelhart MJ, Ahern PP. Controlled Complexity: Optimized Systems to Study the Role of the Gut Microbiome in Host Physiology. Front Microbiol 2021; 12:735562. [PMID: 34646255 PMCID: PMC8503645 DOI: 10.3389/fmicb.2021.735562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/24/2021] [Indexed: 12/26/2022] Open
Abstract
The profound impact of the gut microbiome on host health has led to a revolution in biomedical research, motivating researchers from disparate fields to define the specific molecular mechanisms that mediate host-beneficial effects. The advent of genomic technologies allied to the use of model microbiomes in gnotobiotic mouse models has transformed our understanding of intestinal microbial ecology and the impact of the microbiome on the host. However, despite incredible advances, our understanding of the host-microbiome dialogue that shapes host physiology is still in its infancy. Progress has been limited by challenges associated with developing model systems that are both tractable enough to provide key mechanistic insights while also reflecting the enormous complexity of the gut ecosystem. Simplified model microbiomes have facilitated detailed interrogation of transcriptional and metabolic functions of the microbiome but do not recapitulate the interactions seen in complex communities. Conversely, intact complex communities from mice or humans provide a more physiologically relevant community type, but can limit our ability to uncover high-resolution insights into microbiome function. Moreover, complex microbiomes from lab-derived mice or humans often do not readily imprint human-like phenotypes. Therefore, improved model microbiomes that are highly defined and tractable, but that more accurately recapitulate human microbiome-induced phenotypic variation are required to improve understanding of fundamental processes governing host-microbiome mutualism. This improved understanding will enhance the translational relevance of studies that address how the microbiome promotes host health and influences disease states. Microbial exposures in wild mice, both symbiotic and infectious in nature, have recently been established to more readily recapitulate human-like phenotypes. The development of synthetic model communities from such "wild mice" therefore represents an attractive strategy to overcome the limitations of current approaches. Advances in microbial culturing approaches that allow for the generation of large and diverse libraries of isolates, coupled to ever more affordable large-scale genomic sequencing, mean that we are now ideally positioned to develop such systems. Furthermore, the development of sophisticated in vitro systems is allowing for detailed insights into host-microbiome interactions to be obtained. Here we discuss the need to leverage such approaches and highlight key challenges that remain to be addressed.
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Affiliation(s)
- Robert W. P. Glowacki
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Morgan J. Engelhart
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Philip P. Ahern
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Center for Microbiome and Human Health, Cleveland Clinic, Cleveland, OH, United States
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42
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Mair I, Wolfenden A, Lowe AE, Bennett A, Muir A, Smith H, Fenn J, Bradley JE, Else KJ. A lesson from the wild: The natural state of eosinophils is Ly6G hi. Immunology 2021; 164:766-776. [PMID: 34486729 PMCID: PMC8561109 DOI: 10.1111/imm.13413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/29/2021] [Accepted: 09/02/2021] [Indexed: 12/11/2022] Open
Abstract
With a long history of promoting pathological inflammation, eosinophils are now emerging as important regulatory cells. Yet, findings from controlled laboratory experiments so far lack translation to animals, including humans, in their natural environment. In order to appreciate the breadth of eosinophil phenotype under non‐laboratory, uncontrolled conditions, we exploit a free‐living population of the model organism Mus musculus domesticus. Eosinophils were present at significantly higher proportions in the spleen and bone marrow of wild mice compared with laboratory mice. Strikingly, the majority of eosinophils of wild mice exhibited a unique Ly6Ghi phenotype seldom described in laboratory literature. Ly6G expression correlated with activation status in spleen and bone marrow, but not peritoneal exudate cells, and is therefore likely not an activation marker per se. Intermediate Ly6G expression was transiently induced in a small proportion of eosinophils from C57BL/6 laboratory mice during acute infection with the whipworm Trichuris muris, but not during low‐dose chronic infection, which better represents parasite exposure in the wild. We conclude that the natural state of the eosinophil is not adequately reflected in the standard laboratory mouse, which compromises our attempts to dissect their functional relevance. Our findings emphasize the importance of studying the immune system in its natural context – alongside more mechanistic laboratory experiments – in order to capture the entirety of immune phenotypes and functions.
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Affiliation(s)
- Iris Mair
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Andrew Wolfenden
- School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Ann E Lowe
- School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Alex Bennett
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Andrew Muir
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Hannah Smith
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Jonathan Fenn
- School of Life Sciences, University of Nottingham, Nottingham, UK
| | | | - Kathryn J Else
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
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43
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Sjaastad FV, Jensen IJ, Berton RR, Badovinac VP, Griffith TS. Inducing Experimental Polymicrobial Sepsis by Cecal Ligation and Puncture. ACTA ACUST UNITED AC 2021; 131:e110. [PMID: 33027848 DOI: 10.1002/cpim.110] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Numerous models are available for the preclinical study of sepsis, and they fall into one of three general categories: (1) administration of exogenous toxins (e.g., lipopolysaccharide, zymosan), (2) virulent bacterial or viral challenge, and (3) host barrier disruption, e.g., cecal ligation and puncture (CLP) or colon ascendens stent peritonitis (CASP). Of the murine models used to study the pathophysiology of sepsis, CLP combines tissue necrosis and polymicrobial sepsis secondary to autologous fecal leakage, as well as hemodynamic and biochemical responses similar to those seen in septic humans. Further, a transient numerical reduction of multiple immune cell types, followed by development of prolonged immunoparalysis, occurs in CLP-induced sepsis just as in humans. Use of the CLP model has led to a vast expansion in knowledge regarding the intricate physiological and cellular changes that occur during and after a septic event. This updated article details the steps necessary to perform this survival surgical technique, as well as some of the obstacles that may arise when evaluating the sepsis-induced changes within the immune system. It also provides representative monoclonal antibody (mAb) panels for multiparameter flow cytometric analysis of the murine immune system in the septic host. © 2020 Wiley Periodicals LLC. Basic Protocol: Cecal ligation and puncture in the mouse.
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Affiliation(s)
- Frances V Sjaastad
- Microbiology, Immunology, and Cancer Biology Ph.D. Program, University of Minnesota, Minneapolis, Minnesota
| | - Isaac J Jensen
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, Iowa
| | - Roger R Berton
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, Iowa
| | - Vladimir P Badovinac
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, Iowa.,Department of Pathology, University of Iowa, Iowa City, Iowa.,Department of Microbiology and Immunology, University of Iowa, Iowa City, Iowa
| | - Thomas S Griffith
- Microbiology, Immunology, and Cancer Biology Ph.D. Program, University of Minnesota, Minneapolis, Minnesota.,Department of Urology, University of Minnesota, Minneapolis, Minnesota.,Center for Immunology, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota.,Minneapolis VA Health Care System, Minneapolis, Minnesota
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44
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Tregaskes CA, Kaufman J. Chickens as a simple system for scientific discovery: The example of the MHC. Mol Immunol 2021; 135:12-20. [PMID: 33845329 PMCID: PMC7611830 DOI: 10.1016/j.molimm.2021.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/08/2021] [Accepted: 03/17/2021] [Indexed: 01/07/2023]
Abstract
Chickens have played many roles in human societies over thousands of years, most recently as an important model species for scientific discovery, particularly for embryology, virology and immunology. In the last few decades, biomedical models like mice have become the most important model organism for understanding the mechanisms of disease, but for the study of outbred populations, they have many limitations. Research on humans directly addresses many questions about disease, but frank experiments into mechanisms are limited by practicality and ethics. For research into all levels of disease simultaneously, chickens combine many of the advantages of humans and of mice, and could provide an independent, integrated and overarching system to validate and/or challenge the dogmas that have arisen from current biomedical research. Moreover, some important systems are simpler in chickens than in typical mammals. An example is the major histocompatibility complex (MHC) that encodes the classical MHC molecules, which play crucial roles in the innate and adaptive immune systems. Compared to the large and complex MHCs of typical mammals, the chicken MHC is compact and simple, with single dominantly-expressed MHC molecules that can determine the response to infectious pathogens. As a result, some fundamental principles have been easier to discover in chickens, with the importance of generalist and specialist MHC alleles being the latest example.
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Affiliation(s)
- Clive A Tregaskes
- University of Cambridge, Department of Pathology, Tennis Court Road, Cambridge, CB2 1QP, United Kingdom
| | - Jim Kaufman
- University of Cambridge, Department of Pathology, Tennis Court Road, Cambridge, CB2 1QP, United Kingdom; University of Edinburgh, Institute for Immunology and Infection Research, Ashworth Laboratories, Kings Buildings, Edinburgh, EH9 3FL, United Kingdom.
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45
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Matsushita K, Li X, Nakamura Y, Dong D, Mukai K, Tsai M, Montgomery SB, Galli SJ. The role of Sp140 revealed in IgE and mast cell responses in Collaborative Cross mice. JCI Insight 2021; 6:e146572. [PMID: 34156030 PMCID: PMC8262499 DOI: 10.1172/jci.insight.146572] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 05/12/2021] [Indexed: 12/20/2022] Open
Abstract
Mouse IgE and mast cell (MC) functions have been studied primarily using inbred strains. Here, we (a) identified effects of genetic background on mouse IgE and MC phenotypes, (b) defined the suitability of various strains for studying IgE and MC functions, and (c) began to study potentially novel genes involved in such functions. We screened 47 Collaborative Cross (CC) strains, as well as C57BL/6J and BALB/cJ mice, for strength of passive cutaneous anaphylaxis (PCA) and responses to the intestinal parasite Strongyloides venezuelensis (S.v.). CC mice exhibited a diversity in PCA strength and S.v. responses. Among strains tested, C57BL/6J and CC027 mice showed, respectively, moderate and uniquely potent MC activity. Quantitative trait locus analysis and RNA sequencing of BM-derived cultured MCs (BMCMCs) from CC027 mice suggested Sp140 as a candidate gene for MC activation. siRNA-mediated knock-down of Sp140 in BMCMCs decreased IgE-dependent histamine release and cytokine production. Our results demonstrated marked variations in IgE and MC activity in vivo, and in responses to S.v., across CC strains. C57BL/6J and CC027 represent useful models for studying MC functions. Additionally, we identified Sp140 as a gene that contributes to IgE-dependent MC activation.
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Affiliation(s)
- Kazufumi Matsushita
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,Department of Immunology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Xin Li
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California, USA.,CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yuki Nakamura
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
| | - Danyue Dong
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Kaori Mukai
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, California, USA
| | - Mindy Tsai
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, California, USA
| | - Stephen B Montgomery
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,Department of Genetics, Stanford University School of Medicine, Stanford, California, USA
| | - Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, California, USA.,Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, California, USA.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, California, USA
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46
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Abstract
Laboratory strains of mice are typically housed in specific pathogen-free facilities to minimize exposure to microbes. This method encourages uniformity in responses to experimentally induced parameters and reduces loss of animals, allowing for the survival and study of immunodeficient mice. However, the restrictions also limit physiologic relevance to humans, who are exposed to numerous microbes from birth. Recent evidence from several groups has demonstrated that exposure of laboratory mice to commensal and pathogenic microbes normally found in wild or pet store mice can dramatically impact the cellular makeup and function of the immune system. This article outlines procedures for exposing laboratory strains of mice to the diverse array of microbes typically found in pet store mice. Suggested methods for characterization of the immune system following this exposure are also described. © 2021 Wiley Periodicals LLC. Basic Protocol 1: Cohousing laboratory strains of mice with pet store mice Support Protocol: Antibody staining of circulating immune cells and analysis by flow cytometry Basic Protocol 2: Exposure of laboratory strains of mice to fomite bedding.
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Affiliation(s)
- Mark Pierson
- Department of Laboratory Medicine and Pathology, Center for Immunology, University of Minnesota, Minneapolis, Minnesota
| | - Anne Merley
- Research Animal Resources, University of Minnesota, Minneapolis, Minnesota
| | - Sara E Hamilton
- Department of Laboratory Medicine and Pathology, Center for Immunology, University of Minnesota, Minneapolis, Minnesota
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47
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Kuypers M, Despot T, Mallevaey T. Dirty mice join the immunologist's toolkit. Microbes Infect 2021; 23:104817. [PMID: 33785421 DOI: 10.1016/j.micinf.2021.104817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/10/2021] [Accepted: 03/22/2021] [Indexed: 02/08/2023]
Abstract
The microbiota is a driving force that influences host physiological functions. In this review, we discuss some of the methods that have been used in the pursuit of relevant host-microbiota interactions that control immune fitness and disease susceptibility, with a focus on dirty mice which have been recently incorporated in the immunologist's toolkit.
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Affiliation(s)
- Meggie Kuypers
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
| | - Tijana Despot
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
| | - Thierry Mallevaey
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada; Institute of Biomedical Engineering, University of Toronto, 164 College Street, Toronto, ON, M5S 3G9, Canada.
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48
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Bär J, Leung JM, Hansen C, Loke P, Hall AR, Conour L, Graham AL. Strong effects of lab-to-field environmental transitions on the bacterial intestinal microbiota of Mus musculus are modulated by Trichuris murisinfection. FEMS Microbiol Ecol 2021; 96:5894916. [PMID: 32816007 DOI: 10.1093/femsec/fiaa167] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/16/2020] [Indexed: 12/13/2022] Open
Abstract
Studies of controlled lab animals and natural populations represent two insightful extremes of microbiota research. We bridged these two approaches by transferring lab-bred female C57BL/6 mice from a conventional mouse facility to an acclimation room and then to an outdoor enclosure, to investigate how the gut microbiota changes with environment. Mice residing under constant conditions served as controls. Using 16S rRNA sequencing of fecal samples, we found that the shift in temperature and humidity, as well as exposure to a natural environment, increased microbiota diversity and altered community composition. Community composition in mice exposed to high temperatures and humidity diverged as much from the microbiota of mice housed outdoors as from the microbiota of control mice. Additionally, infection with the nematode Trichuris muris modulated how the microbiota responded to environmental transitions: The dynamics of several families were buffered by the nematodes, while invasion rates of two taxa acquired outdoors were magnified. These findings suggest that gut bacterial communities respond dynamically and simultaneously to changes within the host's body (e.g. the presence of nematodes) and to changes in the wider environment of the host.
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Affiliation(s)
- Julian Bär
- Department of Environmental Systems Science, ETH Zurich, 8092 Zurich, Switzerland.,Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA
| | - Jacqueline M Leung
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA.,Department of Environmental Health Sciences, Columbia University, New York, NY, 10032, USA
| | - Christina Hansen
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA
| | - P'ng Loke
- Department of Microbiology, New York University Grossman School of Medicine, New York, NY, 10016, USA
| | - Alex R Hall
- Department of Environmental Systems Science, ETH Zurich, 8092 Zurich, Switzerland
| | - Laura Conour
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ, 08544, USA
| | - Andrea L Graham
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA
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49
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Graham AL. Naturalizing mouse models for immunology. Nat Immunol 2021; 22:111-117. [PMID: 33495644 DOI: 10.1038/s41590-020-00857-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/07/2020] [Indexed: 02/07/2023]
Abstract
Laboratory mice have provided invaluable insight into mammalian immune systems. Yet the immune phenotypes of mice bred and maintained in conventional laboratory conditions often differ from the immune phenotypes of wild mammals. Recent work to naturalize the environmental experience of inbred laboratory mice-to take them where the wild things are (to borrow a phrase from Maurice Sendak), via approaches such as construction of exposure histories, provision of fecal transplants or surrogate mothering by wild mice, and rewilding-is poised to expand understanding, complementing genetic and phylogenetic research on how natural selection has shaped mammalian immune systems while improving the translational potential of mouse research.
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Affiliation(s)
- Andrea L Graham
- Department of Ecology & Evolutionary Biology, Princeton University, Princeton, NJ, USA.
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50
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Martin LB, Hanson HE, Hauber ME, Ghalambor CK. Genes, Environments, and Phenotypic Plasticity in Immunology. Trends Immunol 2021; 42:198-208. [PMID: 33518415 DOI: 10.1016/j.it.2021.01.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 12/30/2022]
Abstract
For most of its history, immunology has sought to control environmental variation to establish genetic causality. As with all biological traits though, variation among individuals arises by three broad pathways: genetic (G), environmental (E), and the interactive between the two (GxE); and immunity is no different. Here, we review the value of applying the evolutionary frameworks of phenotypic plasticity and reaction norms to immunology. Because standardized laboratory environments are vastly different from the conditions under which populations evolved, we hypothesize that immunology might presently be missing important phenotypic variation and even focusing on dysregulated molecular and cellular processes. Modest adjustments to study designs could make model organism immunology more productive, reproducible, and reflective of human physiology.
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Affiliation(s)
- Lynn B Martin
- Center for Global Health and Infectious Disease Research, University of South Florida, Tampa, FL, USA.
| | - Haley E Hanson
- Center for Global Health and Infectious Disease Research, University of South Florida, Tampa, FL, USA
| | - Mark E Hauber
- Department of Evolution, Ecology, and Behavior, School of Integrative Biology, University of Illinois, Urbana-Champaign, IL, USA
| | - Cameron K Ghalambor
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway; Department of Biology, Colorado State University, Fort Collins, CO, USA
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