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Westerhof LM, Noonan J, Hargrave KE, Chimbayo ET, Cheng Z, Purnell T, Jackson MR, Borcherding N, MacLeod MKL. Multifunctional cytokine production marks influenza A virus-specific CD4 T cells with high expression of survival molecules. Eur J Immunol 2023; 53:e2350559. [PMID: 37490492 PMCID: PMC10947402 DOI: 10.1002/eji.202350559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/27/2023]
Abstract
Cytokine production by memory T cells is a key mechanism of T cell mediated protection. However, we have limited understanding of the persistence of cytokine producing T cells during memory cell maintenance and secondary responses. We interrogated antigen-specific CD4 T cells using a mouse influenza A virus infection model. Although CD4 T cells detected using MHCII tetramers declined in lymphoid and non-lymphoid organs, we found similar numbers of cytokine+ CD4 T cells at days 9 and 30 in the lymphoid organs. CD4 T cells with the capacity to produce cytokines expressed higher levels of pro-survival molecules, CD127 and Bcl2, than non-cytokine+ cells. Transcriptomic analysis revealed a heterogeneous population of memory CD4 T cells with three clusters of cytokine+ cells. These clusters match flow cytometry data and reveal an enhanced survival signature in cells capable of producing multiple cytokines. Following re-infection, multifunctional T cells expressed low levels of the proliferation marker, Ki67, whereas cells that only produce the anti-viral cytokine, interferon-γ, were more likely to be Ki67+ . Despite this, multifunctional memory T cells formed a substantial fraction of the secondary memory pool. Together these data indicate that survival rather than proliferation may dictate which populations persist within the memory pool.
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Affiliation(s)
| | - Jonathan Noonan
- Baker Heart and Diabetes Institute & Baker Department of Cardiometabolic HealthUniversity of MelbourneMelbourneAustralia
| | | | - Elizabeth T. Chimbayo
- School of Infection and ImmunityUniversity of GlasgowGlasgowUK
- Malawi Liverpool Wellcome CentreBlantyreMalawi
| | - Zhiling Cheng
- School of Infection and ImmunityUniversity of GlasgowGlasgowUK
| | - Thomas Purnell
- School of Infection and ImmunityUniversity of GlasgowGlasgowUK
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Finney GE, Hargrave KE, Pingen M, Purnell T, Todd D, MacDonald F, Worrell JC, MacLeod MKL. Triphasic production of IFN γ by innate and adaptive lymphocytes following influenza A virus infection. Discov Immunol 2023; 2:kyad014. [PMID: 37842651 PMCID: PMC10568397 DOI: 10.1093/discim/kyad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 10/17/2023]
Abstract
Interferon gamma (IFNγ) is a potent antiviral cytokine that can be produced by many innate and adaptive immune cells during infection. Currently, our understanding of which cells produce IFNγ and where they are located at different stages of an infection is limited. We have used reporter mice to investigate in vivo expression of Ifnγ mRNA in the lung and secondary lymphoid organs during and following influenza A virus (IAV) infection. We observed a triphasic production of Ifnγ expression. Unconventional T cells and innate lymphoid cells, particularly NK cells, were the dominant producers of early Ifnγ, while CD4 and CD8 T cells were the main producers by day 10 post-infection. Following viral clearance, some memory CD4 and CD8 T cells continued to express Ifnγ in the lungs and draining lymph node. Interestingly, Ifnγ production by lymph node natural killer (NK), NKT, and innate lymphoid type 1 cells also continued to be above naïve levels, suggesting memory-like phenotypes for these cells. Analysis of the localization of Ifnγ+ memory CD4 and CD8 T cells demonstrated that cytokine+ T cells were located near airways and in the lung parenchyma. Following a second IAV challenge, lung IAV-specific CD8 T cells rapidly increased their expression of Ifnγ while CD4 T cells in the draining lymph node increased their Ifnγ response. Together, these data suggest that Ifnγ production fluctuates based on cellular source and location, both of which could impact subsequent immune responses.
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Affiliation(s)
- George E Finney
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Kerrie E Hargrave
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Marieke Pingen
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Thomas Purnell
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - David Todd
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Freya MacDonald
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Julie C Worrell
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Megan K L MacLeod
- Centre for Immunobiology, School of Infection and Immunity, University of Glasgow, Glasgow, UK
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Pinto RM, Bakshi S, Lytras S, Zakaria MK, Swingler S, Worrell JC, Herder V, Hargrave KE, Varjak M, Cameron-Ruiz N, Collados Rodriguez M, Varela M, Wickenhagen A, Loney C, Pei Y, Hughes J, Valette E, Turnbull ML, Furnon W, Gu Q, Orr L, Taggart A, Diebold O, Davis C, Boutell C, Grey F, Hutchinson E, Digard P, Monne I, Wootton SK, MacLeod MKL, Wilson SJ, Palmarini M. BTN3A3 evasion promotes the zoonotic potential of influenza A viruses. Nature 2023; 619:338-347. [PMID: 37380775 DOI: 10.1038/s41586-023-06261-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/25/2023] [Indexed: 06/30/2023]
Abstract
Spillover events of avian influenza A viruses (IAVs) to humans could represent the first step in a future pandemic1. Several factors that limit the transmission and replication of avian IAVs in mammals have been identified. There are several gaps in our understanding to predict which virus lineages are more likely to cross the species barrier and cause disease in humans1. Here, we identified human BTN3A3 (butyrophilin subfamily 3 member A3)2 as a potent inhibitor of avian IAVs but not human IAVs. We determined that BTN3A3 is expressed in human airways and its antiviral activity evolved in primates. We show that BTN3A3 restriction acts primarily at the early stages of the virus life cycle by inhibiting avian IAV RNA replication. We identified residue 313 in the viral nucleoprotein (NP) as the genetic determinant of BTN3A3 sensitivity (313F or, rarely, 313L in avian viruses) or evasion (313Y or 313V in human viruses). However, avian IAV serotypes, such as H7 and H9, that spilled over into humans also evade BTN3A3 restriction. In these cases, BTN3A3 evasion is due to substitutions (N, H or Q) in NP residue 52 that is adjacent to residue 313 in the NP structure3. Thus, sensitivity or resistance to BTN3A3 is another factor to consider in the risk assessment of the zoonotic potential of avian influenza viruses.
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Affiliation(s)
- Rute Maria Pinto
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Siddharth Bakshi
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Spyros Lytras
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | | | - Simon Swingler
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Julie C Worrell
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Vanessa Herder
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Kerrie E Hargrave
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Margus Varjak
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
- Faculty of Science and Technology, Institute of Technology, University of Tartu, Tartu, Estonia
| | | | | | - Mariana Varela
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | | | - Colin Loney
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Yanlong Pei
- Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada
| | - Joseph Hughes
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Elise Valette
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | | | - Wilhelm Furnon
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Quan Gu
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Lauren Orr
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Aislynn Taggart
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Ola Diebold
- The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Chris Davis
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Chris Boutell
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - Finn Grey
- The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | | | - Paul Digard
- The Roslin Institute, University of Edinburgh, Edinburgh, UK
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Sarah K Wootton
- Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada
| | - Megan K L MacLeod
- School of Infection and Immunity, University of Glasgow, Glasgow, UK
| | - Sam J Wilson
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
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Hargrave KE, MacLeod MK, Worrell JC. Antigen presenting cells: professionals, amateurs, and spectators in the 'long game' of lung immunity. Int J Biochem Cell Biol 2022; 153:106331. [DOI: 10.1016/j.biocel.2022.106331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/31/2022] [Accepted: 11/06/2022] [Indexed: 11/09/2022]
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Hargrave KE, Woods S, Millington O, Chalmers S, Westrop GD, Roberts CW. Multi-Omics Studies Demonstrate Toxoplasma gondii-Induced Metabolic Reprogramming of Murine Dendritic Cells. Front Cell Infect Microbiol 2019; 9:309. [PMID: 31572687 PMCID: PMC6749083 DOI: 10.3389/fcimb.2019.00309] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 08/12/2019] [Indexed: 01/14/2023] Open
Abstract
Toxoplasma gondii is capable of actively invading almost any mammalian cell type including phagocytes. Early events in phagocytic cells such as dendritic cells are not only key to establishing parasite infection, but conversely play a pivotal role in initiating host immunity. It is now recognized that in addition to changes in canonical immune markers and mediators, alteration in metabolism occurs upon activation of phagocytic cells. These metabolic changes are important for supporting the developing immune response, but can affect the availability of nutrients for intracellular pathogens including T. gondii. However, the interaction of T. gondii with these cells and particularly how infection changes their metabolism has not been extensively investigated. Herein, we use a multi-omics approach comprising transcriptomics and metabolomics validated with functional assays to better understand early events in these cells following infection. Analysis of the transcriptome of T. gondii infected bone marrow derived dendritic cells (BMDCs) revealed significant alterations in transcripts associated with cellular metabolism, activation of T cells, inflammation mediated chemokine and cytokine signaling pathways. Multivariant analysis of metabolomic data sets acquired through non-targeted liquid chromatography mass spectroscopy (LCMS) identified metabolites associated with glycolysis, the TCA cycle, oxidative phosphorylation and arginine metabolism as major discriminants between control uninfected and T. gondii infected cells. Consistent with these observations, glucose uptake and lactate dehydrogenase activity were upregulated in T. gondii infected BMDC cultures compared with control BMDCs. Conversely, BMDC mitochondrial membrane potential was reduced in T. gondii-infected cells relative to mitochondria of control BMDCs. These changes to energy metabolism, similar to what has been described following LPS stimulation of BMDCs and macrophages are often termed the Warburg effect. This metabolic reprogramming of cells has been suggested to be an important adaption that provides energy and precursors to facilitate phagocytosis, antigen processing and cytokine production. Other changes to BMDC metabolism are evident following T. gondii infection and include upregulation of arginine degradation concomitant with increased arginase-1 activity and ornithine and proline production. As T. gondii is an arginine auxotroph the resultant reduced cellular arginine levels are likely to curtail parasite multiplication. These results highlight the complex interplay of BMDCs and parasite metabolism within the developing immune response and the consequences for adaptive immunity and pathogen clearance.
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Affiliation(s)
- Kerrie E Hargrave
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Stuart Woods
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Owain Millington
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Susan Chalmers
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Gareth D Westrop
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Craig W Roberts
- Strathclyde Institute of Pharmacy & Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
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