1
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Awad A, Mouhtouris E, Clatch A, James F, Chua KYL, Holmes NE, Gibney G, Rose M, Copaescu A, Goh MS, Mackay LK, Christo SN, Gordon C, Philips EJ, Trubiano JA. Durability of immune responses after drug reaction with eosinophilia and systemic symptoms. J Allergy Clin Immunol Pract 2024; 12:232-235.e2. [PMID: 37778629 DOI: 10.1016/j.jaip.2023.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 09/01/2023] [Accepted: 09/17/2023] [Indexed: 10/03/2023]
Affiliation(s)
- Andrew Awad
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia.
| | - Effie Mouhtouris
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia
| | - Allison Clatch
- Department of Microbiology and Immunology, the University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Fiona James
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia
| | - Kyra Y L Chua
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia; Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Natasha E Holmes
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia; Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Grace Gibney
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia
| | - Morgan Rose
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia
| | - Ana Copaescu
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia
| | - Michelle S Goh
- Department of Dermatology, Alfred Health, Melbourne, VIC, Australia; Department of Dermatology, Austin Hospital, Heidelberg, VIC, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, the University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, the University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Claire Gordon
- Department of Microbiology and Immunology, the University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Elizabeth J Philips
- Center for Drug Safety and Immunology, Vanderbilt University Medical Centre, Nashville, Tenn, USA; Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, WA, Australia
| | - Jason A Trubiano
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Hospital, Heidelberg, VIC, Australia; Department of Infectious Diseases, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
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2
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Park SL, Christo SN, Wells AC, Gandolfo LC, Zaid A, Alexandre YO, Burn TN, Schröder J, Collins N, Han SJ, Guillaume SM, Evrard M, Castellucci C, Davies B, Osman M, Obers A, McDonald KM, Wang H, Mueller SN, Kannourakis G, Berzins SP, Mielke LA, Carbone FR, Kallies A, Speed TP, Belkaid Y, Mackay LK. Divergent molecular networks program functionally distinct CD8 + skin-resident memory T cells. Science 2023; 382:1073-1079. [PMID: 38033053 DOI: 10.1126/science.adi8885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/01/2023] [Indexed: 12/02/2023]
Abstract
Skin-resident CD8+ T cells include distinct interferon-γ-producing [tissue-resident memory T type 1 (TRM1)] and interleukin-17 (IL-17)-producing (TRM17) subsets that differentially contribute to immune responses. However, whether these populations use common mechanisms to establish tissue residence is unknown. In this work, we show that TRM1 and TRM17 cells navigate divergent trajectories to acquire tissue residency in the skin. TRM1 cells depend on a T-bet-Hobit-IL-15 axis, whereas TRM17 cells develop independently of these factors. Instead, c-Maf commands a tissue-resident program in TRM17 cells parallel to that induced by Hobit in TRM1 cells, with an ICOS-c-Maf-IL-7 axis pivotal to TRM17 cell commitment. Accordingly, by targeting this pathway, skin TRM17 cells can be ablated without compromising their TRM1 counterparts. Thus, skin-resident T cells rely on distinct molecular circuitries, which can be exploited to strategically modulate local immunity.
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Affiliation(s)
- Simone L Park
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Alexandria C Wells
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Bethesda, MD, USA
| | - Luke C Gandolfo
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- School of Mathematics and Statistics, The University of Melbourne, Melbourne, VIC, Australia
- Walter and Eliza Hall Institute for Medical Research, Parkville, VIC, Australia
| | - Ali Zaid
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Yannick O Alexandre
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Thomas N Burn
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Jan Schröder
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Nicholas Collins
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Bethesda, MD, USA
| | - Seong-Ji Han
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Bethesda, MD, USA
| | - Stéphane M Guillaume
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Maximilien Evrard
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Clara Castellucci
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Brooke Davies
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Maleika Osman
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Andreas Obers
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Keely M McDonald
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Huimeng Wang
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - George Kannourakis
- Institute of Innovation, Science and Sustainability, Federation University Australia, Ballarat, VIC, Australia
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia
| | - Stuart P Berzins
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Institute of Innovation, Science and Sustainability, Federation University Australia, Ballarat, VIC, Australia
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia
| | - Lisa A Mielke
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, VIC, Australia
| | - Francis R Carbone
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Axel Kallies
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Terence P Speed
- School of Mathematics and Statistics, The University of Melbourne, Melbourne, VIC, Australia
- Walter and Eliza Hall Institute for Medical Research, Parkville, VIC, Australia
| | - Yasmine Belkaid
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Bethesda, MD, USA
- NIAID Microbiome Program, NIAID, National Institutes of Health, Bethesda, MD, USA
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
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3
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Clatch A, Christo SN, Mackay LK. T RM cells: not born this way. Trends Immunol 2023; 44:663-664. [PMID: 37591711 DOI: 10.1016/j.it.2023.08.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/19/2023]
Abstract
Human tissue-resident memory T (TRM) cells seeded early in life undergo an age-associated functional maturation and residency acquisition throughout childhood.
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Affiliation(s)
- Allison Clatch
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
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4
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Xu C, Li S, Fulford TS, Christo SN, Mackay LK, Gray DH, Uldrich AP, Pellicci DG, I Godfrey D, Koay HF. Expansion of MAIT cells in the combined absence of NKT and γδ-T cells. Mucosal Immunol 2023; 16:446-461. [PMID: 37182737 DOI: 10.1016/j.mucimm.2023.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/11/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
Mucosal-associated invariant T (MAIT) cells, natural killer T (NKT) cells, and γδT cells are collectively referred to as 'unconventional T cells' due to their recognition of non-peptide antigens and restriction to MHC-I-like molecules. However, the factors controlling their widely variable frequencies between individuals and organs are poorly understood. We demonstrated that MAIT cells are increased in NKT or γδT cell-deficient mice and highly expand in mice lacking both cell types. TCRα repertoire analysis of γδT cell-deficient thymocytes revealed altered Trav segment usage relative to wild-type thymocytes, highlighting retention of the Tcra-Tcrd locus from the 129 mouse strain used to generate Tcrd-/- mice. This resulted in a moderate increase in distal Trav segment usage, including Trav1, potentially contributing to increased generation of Trav1-Traj33+ MAIT cells in the Tcrd-/- thymus. Importantly, adoptively transferred MAIT cells underwent increased homeostatic proliferation within NKT/gdT cell-deficient tissues, with MAIT cell subsets exhibiting tissue-specific homing patterns. Our data reveal a shared niche for unconventional T cells, where competition for common factors may be exploited to collectively modulate these cells in the immune response. Lastly, our findings emphasise careful assessment of studies using NKT or γδT cell-deficient mice when investigating the role of unconventional T cells in disease.
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Affiliation(s)
- Calvin Xu
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Shihan Li
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Thomas S Fulford
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Daniel Hd Gray
- Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Adam P Uldrich
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia
| | - Daniel G Pellicci
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia; Murdoch Children's Research Institute, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Parkville, Australia.
| | - Dale I Godfrey
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia.
| | - Hui-Fern Koay
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Australia.
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5
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Evrard M, Becht E, Fonseca R, Obers A, Park SL, Ghabdan-Zanluqui N, Schroeder J, Christo SN, Schienstock D, Lai J, Burn TN, Clatch A, House IG, Beavis P, Kallies A, Ginhoux F, Mueller SN, Gottardo R, Newell EW, Mackay LK. Single-cell protein expression profiling resolves circulating and resident memory T cell diversity across tissues and infection contexts. Immunity 2023:S1074-7613(23)00262-5. [PMID: 37392736 DOI: 10.1016/j.immuni.2023.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/08/2023] [Accepted: 06/07/2023] [Indexed: 07/03/2023]
Abstract
Memory CD8+ T cells can be broadly divided into circulating (TCIRCM) and tissue-resident memory T (TRM) populations. Despite well-defined migratory and transcriptional differences, the phenotypic and functional delineation of TCIRCM and TRM cells, particularly across tissues, remains elusive. Here, we utilized an antibody screening platform and machine learning prediction pipeline (InfinityFlow) to profile >200 proteins in TCIRCM and TRM cells in solid organs and barrier locations. High-dimensional analyses revealed unappreciated heterogeneity within TCIRCM and TRM cell lineages across nine different organs after either local or systemic murine infection models. Additionally, we demonstrated the relative effectiveness of strategies allowing for the selective ablation of TCIRCM or TRM populations across organs and identified CD55, KLRG1, CXCR6, and CD38 as stable markers for characterizing memory T cell function during inflammation. Together, these data and analytical framework provide an in-depth resource for memory T cell classification in both steady-state and inflammatory conditions.
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Affiliation(s)
- Maximilien Evrard
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia.
| | - Etienne Becht
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Raissa Fonseca
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Andreas Obers
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Simone L Park
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Nagela Ghabdan-Zanluqui
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Jan Schroeder
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Dominik Schienstock
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Junyun Lai
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3010, Australia; Cancer Immunology Program, Peter MacCallum Cancer Centre, Parkville, VIC 3010, Australia
| | - Thomas N Burn
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Allison Clatch
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Imran G House
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3010, Australia; Cancer Immunology Program, Peter MacCallum Cancer Centre, Parkville, VIC 3010, Australia
| | - Paul Beavis
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC 3010, Australia; Cancer Immunology Program, Peter MacCallum Cancer Centre, Parkville, VIC 3010, Australia
| | - Axel Kallies
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A∗STAR), Singapore 138648, Singapore
| | - Scott N Mueller
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Centre Hospitalier Universitaire du Vaud and University of Lausanne, Lausanne 1011, Switzerland
| | - Evan W Newell
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Parkville, VIC 3010, Australia.
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6
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Virassamy B, Caramia F, Savas P, Sant S, Wang J, Christo SN, Byrne A, Clarke K, Brown E, Teo ZL, von Scheidt B, Freestone D, Gandolfo LC, Weber K, Teply-Szymanski J, Li R, Luen SJ, Denkert C, Loibl S, Lucas O, Swanton C, Speed TP, Darcy PK, Neeson PJ, Mackay LK, Loi S. Intratumoral CD8 + T cells with a tissue-resident memory phenotype mediate local immunity and immune checkpoint responses in breast cancer. Cancer Cell 2023; 41:585-601.e8. [PMID: 36827978 DOI: 10.1016/j.ccell.2023.01.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 10/17/2022] [Accepted: 01/13/2023] [Indexed: 02/25/2023]
Abstract
CD8+ tumor-infiltrating lymphocytes with a tissue-resident memory T (TRM) cell phenotype are associated with favorable prognosis in patients with triple-negative breast cancer (TNBC). However, the relative contribution of CD8+ TRM cells to anti-tumor immunity and immune checkpoint blockade efficacy in breast cancer remains unknown. Here, we show that intratumoral CD8+ T cells in murine mammary tumors transcriptionally resemble those from TNBC patients. Phenotypic and transcriptional studies established two intratumoral sub-populations: one more enriched in markers of terminal exhaustion (TEX-like) and the other with a bona fide resident phenotype (TRM-like). Treatment with anti-PD-1 and anti-CTLA-4 therapy resulted in expansion of these intratumoral populations, with the TRM-like subset displaying significantly enhanced cytotoxic capacity. TRM-like CD8+ T cells could also provide local immune protection against tumor rechallenge and a TRM gene signature extracted from tumor-free tissue was significantly associated with improved clinical outcomes in TNBC patients treated with checkpoint inhibitors.
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Affiliation(s)
- Balaji Virassamy
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Franco Caramia
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Peter Savas
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Sneha Sant
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Jianan Wang
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia; Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia; Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Ann Byrne
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Kylie Clarke
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Emmaline Brown
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Zhi Ling Teo
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Bianca von Scheidt
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - David Freestone
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Luke C Gandolfo
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia; Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Karsten Weber
- German Breast Cancer Group, GBG-Forschungs GmbH, Neu-Isenburg, Germany
| | - Julia Teply-Szymanski
- German Breast Cancer Group, GBG-Forschungs GmbH, Neu-Isenburg, Germany; Department of Pathology, University Marburg-Giessen, Campus Marburg, Germany
| | - Ran Li
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Stephen J Luen
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Carsten Denkert
- German Breast Cancer Group, GBG-Forschungs GmbH, Neu-Isenburg, Germany; Department of Pathology, University Marburg-Giessen, Campus Marburg, Germany
| | - Sibylle Loibl
- German Breast Cancer Group, GBG-Forschungs GmbH, Neu-Isenburg, Germany
| | - Olivia Lucas
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK; Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK; Computational Cancer Genomics Research Group, University College London Cancer Institute, London, UK
| | - Charles Swanton
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK; Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Terence P Speed
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia; School of Mathematics and Statistics, University of Melbourne, Melbourne, VIC, Australia
| | - Phillip K Darcy
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia.
| | - Paul J Neeson
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia.
| | - Laura K Mackay
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia; Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
| | - Sherene Loi
- Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia; The Sir Peter MacCallum Department of Medical Oncology, University of Melbourne, Melbourne, VIC, Australia.
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7
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Fonseca R, Burn TN, Gandolfo LC, Devi S, Park SL, Obers A, Evrard M, Christo SN, Buquicchio FA, Lareau CA, McDonald KM, Sandford SK, Zamudio NM, Zanluqui NG, Zaid A, Speed TP, Satpathy AT, Mueller SN, Carbone FR, Mackay LK. Runx3 drives a CD8 + T cell tissue residency program that is absent in CD4 + T cells. Nat Immunol 2022; 23:1236-1245. [PMID: 35882933 DOI: 10.1038/s41590-022-01273-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [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: 10/08/2021] [Accepted: 06/17/2022] [Indexed: 11/09/2022]
Abstract
Tissue-resident memory T cells (TRM cells) provide rapid and superior control of localized infections. While the transcription factor Runx3 is a critical regulator of CD8+ T cell tissue residency, its expression is repressed in CD4+ T cells. Here, we show that, as a direct consequence of this Runx3-deficiency, CD4+ TRM cells lacked the transforming growth factor (TGF)-β-responsive transcriptional network that underpins the tissue residency of epithelial CD8+ TRM cells. While CD4+ TRM cell formation required Runx1, this, along with the modest expression of Runx3 in CD4+ TRM cells, was insufficient to engage the TGF-β-driven residency program. Ectopic expression of Runx3 in CD4+ T cells incited this TGF-β-transcriptional network to promote prolonged survival, decreased tissue egress, a microanatomical redistribution towards epithelial layers and enhanced effector functionality. Thus, our results reveal distinct programming of tissue residency in CD8+ and CD4+ TRM cell subsets that is attributable to divergent Runx3 activity.
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Affiliation(s)
- Raíssa Fonseca
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Thomas N Burn
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Luke C Gandolfo
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- School of Mathematics and Statistics, The University of Melbourne, Melbourne, Victoria, Australia
- Walter and Eliza Hall Institute for Medical Research, Parkville, Victoria, Australia
| | - Sapna Devi
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Simone L Park
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Andreas Obers
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Maximilien Evrard
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Frank A Buquicchio
- Department of Pathology, Stanford University, Stanford, CA, USA
- Program in Immunology, Stanford University, Stanford, CA, USA
| | - Caleb A Lareau
- Department of Pathology, Stanford University, Stanford, CA, USA
- Program in Immunology, Stanford University, Stanford, CA, USA
| | - Keely M McDonald
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Sarah K Sandford
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Natasha M Zamudio
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Nagela G Zanluqui
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ali Zaid
- Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Southport, Queensland, Australia
| | - Terence P Speed
- School of Mathematics and Statistics, The University of Melbourne, Melbourne, Victoria, Australia
- Walter and Eliza Hall Institute for Medical Research, Parkville, Victoria, Australia
| | - Ansuman T Satpathy
- Department of Pathology, Stanford University, Stanford, CA, USA
- Program in Immunology, Stanford University, Stanford, CA, USA
- Parker Institute for Cancer Immunotherapy, Stanford University, Stanford, CA, USA
- Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA, USA
| | - Scott N Mueller
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Francis R Carbone
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
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8
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Loi JK, Alexandre YO, Senthil K, Schienstock D, Sandford S, Devi S, Christo SN, Mackay LK, Chinnery HR, Osborne PB, Downie LE, Sloan EK, Mueller SN. Corneal tissue-resident memory T cells form a unique immune compartment at the ocular surface. Cell Rep 2022; 39:110852. [PMID: 35613584 DOI: 10.1016/j.celrep.2022.110852] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 03/27/2022] [Accepted: 04/29/2022] [Indexed: 11/03/2022] Open
Abstract
The eye is considered immune privileged such that immune responses are dampened to protect vision. As the most anterior compartment of the eye, the cornea is exposed to pathogens and can mount immune responses that recruit effector T cells. However, presence of immune memory in the cornea is not defined. Here, we use intravital 2-photon microscopy to examine T cell responses in the cornea in mice. We show that recruitment of CD8+ T cells in response to ocular virus infection results in the formation of tissue-resident memory T (TRM) cells. Motile corneal TRM cells patrol the cornea and rapidly respond in situ to antigen rechallenge. CD103+ TRM cell generation requires antigen and transforming growth factor β. In vivo imaging in humans also reveals highly motile cells that patrol the healthy cornea. Our study finds that TRM cells form in the cornea where they can provide local protective immunity.
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Affiliation(s)
- Joon Keit Loi
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Yannick O Alexandre
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Kirthana Senthil
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Dominik Schienstock
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sarah Sandford
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sapna Devi
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Holly R Chinnery
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Peregrine B Osborne
- Department of Anatomy and Neuroscience, The University of Melbourne, Melbourne, VIC, Australia
| | - Laura E Downie
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Erica K Sloan
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia; Division of Surgery, Peter MacCallum Cancer Center, Melbourne, VIC, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
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9
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Park SL, Christo SN, Mackay LK. ICOS-play: dressing T cells for residency. Trends Immunol 2022; 43:280-282. [PMID: 35272933 DOI: 10.1016/j.it.2022.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 02/22/2022] [Indexed: 10/18/2022]
Abstract
Efficient generation of tissue-resident memory T (TRM) cells is essential for long-lived immune protection in barrier tissues. Peng et al. now show that the costimulatory molecule ICOS enhances CD8+ TRM cell lodgment by promoting early tissue retention.
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Affiliation(s)
- Simone L Park
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Microbiology & Immunology, University of Melbourne at the Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Microbiology & Immunology, University of Melbourne at the Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Laura K Mackay
- Department of Microbiology & Immunology, University of Melbourne at the Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
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10
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Alexandre YO, Schienstock D, Lee HJ, Gandolfo LC, Williams CG, Devi S, Pal B, Groom JR, Cao W, Christo SN, Gordon CL, Starkey G, D'Costa R, Mackay LK, Haque A, Ludewig B, Belz GT, Mueller SN. A diverse fibroblastic stromal cell landscape in the spleen directs tissue homeostasis and immunity. Sci Immunol 2022; 7:eabj0641. [PMID: 34995096 DOI: 10.1126/sciimmunol.abj0641] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Yannick O Alexandre
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Dominik Schienstock
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Hyun Jae Lee
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Luke C Gandolfo
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.,Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC, Australia
| | - Cameron G Williams
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sapna Devi
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Bhupinder Pal
- Olivia Newton-John Cancer Research Institute and School of Cancer Medicine, La Trobe University, Heidelberg, VIC, Australia
| | - Joanna R Groom
- Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Wang Cao
- Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Claire L Gordon
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.,Department of Infectious Diseases, Austin Health, Melbourne, VIC, Australia
| | - Graham Starkey
- Liver and Intestinal Transplant Unit, Austin Health, Melbourne, VIC, Australia.,Department of Surgery, University of Melbourne, Austin Health, Melbourne, VIC, Australia
| | - Rohit D'Costa
- DonateLife Victoria, Carlton, VIC, Australia.,Department of Intensive Care Medicine, Melbourne Health, Melbourne, VIC, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Ashraful Haque
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Burkhard Ludewig
- Institute of Immunobiology, Medical Research Center, Kantonsspital St. Gallen, St. Gallen, Switzerland.,Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Gabrielle T Belz
- Walter and Eliza Hall Institute of Medical Research (WEHI), Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.,University of Queensland Diamantina Institute, University of Queensland, Brisbane, QLD, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
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11
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Evrard M, Wynne-Jones E, Peng C, Kato Y, Christo SN, Fonseca R, Park SL, Burn TN, Osman M, Devi S, Chun J, Mueller SN, Kannourakis G, Berzins SP, Pellicci DG, Heath WR, Jameson SC, Mackay LK. Sphingosine 1-phosphate receptor 5 (S1PR5) regulates the peripheral retention of tissue-resident lymphocytes. J Exp Med 2022; 219:e20210116. [PMID: 34677611 PMCID: PMC8546662 DOI: 10.1084/jem.20210116] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 08/16/2021] [Accepted: 10/01/2021] [Indexed: 11/05/2022] Open
Abstract
Tissue-resident memory T (TRM) cells provide long-lasting immune protection. One of the key events controlling TRM cell development is the local retention of TRM cell precursors coupled to downregulation of molecules necessary for tissue exit. Sphingosine-1-phosphate receptor 5 (S1PR5) is a migratory receptor with an uncharted function in T cells. Here, we show that S1PR5 plays a critical role in T cell infiltration and emigration from peripheral organs, as well as being specifically downregulated in TRM cells. Consequentially, TRM cell development was selectively impaired upon ectopic expression of S1pr5, whereas loss of S1pr5 enhanced skin TRM cell formation by promoting peripheral T cell sequestration. Importantly, we found that T-bet and ZEB2 were required for S1pr5 induction and that local TGF-β signaling was necessary to promote coordinated Tbx21, Zeb2, and S1pr5 downregulation. Moreover, S1PR5-mediated control of tissue residency was conserved across innate and adaptive immune compartments. Together, these results identify the T-bet-ZEB2-S1PR5 axis as a previously unappreciated mechanism modulating the generation of tissue-resident lymphocytes.
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Affiliation(s)
- Maximilien Evrard
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Erica Wynne-Jones
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Changwei Peng
- Center for Immunology, University of Minnesota Medical School, Minneapolis, MN
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN
| | - Yu Kato
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- The ARC Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Susan N. Christo
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Raissa Fonseca
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Simone L. Park
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Thomas N. Burn
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Maleika Osman
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Sapna Devi
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA
| | - Scott N. Mueller
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - George Kannourakis
- Federation University Australia and Fiona Elsey Cancer Research Institute, Ballarat, Victoria, Australia
| | - Stuart P. Berzins
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Federation University Australia and Fiona Elsey Cancer Research Institute, Ballarat, Victoria, Australia
| | - Daniel G. Pellicci
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- The ARC Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
- Cellular Immunology Group, Murdoch Children’s Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - William R. Heath
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- The ARC Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - 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
| | - Laura K. Mackay
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- The ARC Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
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12
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Trubiano JA, Gordon CL, Castellucci C, Christo SN, Park SL, Mouhtouris E, Konvinse K, Rose M, Goh M, Boyd AS, Phillips EJ, Mackay LK. Analysis of Skin-Resident Memory T Cells Following Drug Hypersensitivity Reactions. J Invest Dermatol 2019; 140:1442-1445.e4. [PMID: 31883960 DOI: 10.1016/j.jid.2019.11.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Jason A Trubiano
- Department of Infectious Diseases and Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia; Department of Infectious Diseases, Peter MacCallum Cancer Centre, Parkville, Victoria, Australia; The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; Department of Medicine (Austin Health), University of Melbourne, Heidelberg, Victoria, Australia.
| | - Claire L Gordon
- Department of Infectious Diseases and Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia; Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
| | - Clara Castellucci
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
| | - Simone L Park
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
| | - Effie Mouhtouris
- Department of Infectious Diseases and Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
| | - Katherine Konvinse
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Morgan Rose
- Department of Infectious Diseases and Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
| | - Michelle Goh
- Department of Dermatology, Austin Health, Heidelberg, Victoria, Australia
| | - Alan S Boyd
- Department of Dermatology, Vanderbilt University Medical Centre, Nashville, TN, USA
| | - Elizabeth J Phillips
- Department of Infectious Diseases, Vanderbilt University Medical Centre, Nashville, TN, USA; Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia.
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13
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Park SL, Buzzai A, Hor JL, Effern M, Christo SN, Mueller SN, Holzel M, Waithman J, Mackay LK, Gebhardt T. Tissue-resident memory T cells mediate melanoma surveillance and are targets of immunotherapy. The Journal of Immunology 2019. [DOI: 10.4049/jimmunol.202.supp.138.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Non-recirculating tissue-resident memory T (TRM) cells reside permanently in epithelial tissues where they are known to protect against infection. TRM cells have now been identified in various human cancers where they correlate with improved patient outcomes, but the mechanisms through which they may mediate protective tumour immunity remain unclear. Using a novel mouse model of transplantable cutaneous melanoma, we show that tumour-specific TRM cells form spontaneously in the epithelial tumour microenvironment where they protect against cancer development independently of circulating memory T cells. A proportion of epicutaneously inoculated mice remained free of macroscopic tumours long after inoculation, and intravital imaging revealed that these mice harboured dormant melanoma cells in their skin that were dynamically surveyed by tumour-specific TRM cells. Depletion of TRM cells from these mice triggered melanoma escape, indicating that TRM cells suppress tumour progression by promoting cancer-immune equilibrium. Further, we found that pre-activated T cells transferred to tumour-bearing mice in a model of adoptive cell therapy gave rise to TRM cells that inhibited the growth of established melanoma. These tumour-specific TRM cells retained their capacity to execute effector functions and protect against tumour growth despite expression of various inhibitory molecules typically associated with T cell dysfunction. Combined, our findings reveal TRM cells to be durable mediators of anti-tumour immunity and suggest that targeting TRM cell responses could serve as a novel immunotherapeutic strategy to drive elimination of solid tumours.
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Affiliation(s)
| | | | | | - Maike Effern
- 1The University of Melbourne, Australia
- 3University of Bonn, Germany
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14
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Zaid A, Hor JL, Christo SN, Groom JR, Heath WR, Mackay LK, Mueller SN. Chemokine Receptor–Dependent Control of Skin Tissue–Resident Memory T Cell Formation. J I 2017; 199:2451-2459. [DOI: 10.4049/jimmunol.1700571] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 08/03/2017] [Indexed: 02/06/2023]
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15
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Wynne-Jones E, Freestone D, Christo SN, Yang K, Reddiex SJJ, Pellicci DG, Carbone FR, Kallies A, Mackay LK. Distinct mechanisms govern resident memory T cell differentiation and survival in different tissues. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.62.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Tissue-resident memory T (Trm) cells are a recently defined population of memory T cells that persist at the site of previous infection and contribute to protective local immunity. Trm cells have been identified in both epithelial and solid organs; however, despite their ubiquity, they share molecular commonalities that are distinct from circulating memory T cells. Therefore, we sought to explore the transcriptional regulation of Trm cells in a number of different organs. Our earlier data demonstrated that Trm cells share a core transcriptional signature regulated by the two related transcription factors Hobit and Blimp1. Here we show that Trm cells also have distinct molecular requirements according to anatomic location. While Hobit was uniquely required for the development of Trm cells in all organs tested, Blimp1 was required in some organs, but dispensable in others. Similar to Blimp1, the T-box transcription factor T-bet was also required for Trm cell development in only a subset of organs. This differential transcription factor dependency was linked to distinct cytokine requirements for Trm cell development in different organs. Trm cell defects were enhanced in the absence of multiple transcription factors, suggesting functional redundancy and implicating a role for distinct transcriptional networks as drivers of Trm cell development in different organs. Together, these data demonstrate the adaptation of Trm cells to specific tissue microenvironments and highlight the importance of studying these cells in a variety of organs.
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Affiliation(s)
| | | | | | - Kun Yang
- 2Walter and Eliza Hall Inst. of Med. Res., Australia
| | | | | | | | - Axel Kallies
- 2Walter and Eliza Hall Inst. of Med. Res., Australia
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16
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Christo SN, Bachhuka A, Diener KR, Mierczynska A, Hayball JD, Vasilev K. The Role of Surface Nanotopography and Chemistry on Primary Neutrophil and Macrophage Cellular Responses. Adv Healthc Mater 2016; 5:956-65. [PMID: 26845244 DOI: 10.1002/adhm.201500845] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 11/24/2015] [Indexed: 01/26/2023]
Abstract
Synthetic materials employed for enhancing, replacing, or restoring biological functionality may be compromised by the host immune responses that they evoke. Surface modification has attracted substantial attention as a tool to modulate the host response to synthetic materials; however, how surface nanotopography combined with chemistry affects immune effector cell responses is still poorly understood. To address this open question, a unique set of model surfaces with controlled surface nanotopography in the range of 16, 38, and 68 nm has been generated. Tailored outermost surface chemistry that was amine, carboxyl, or methyl group rich has been provided. The combinations of these properties yield 12 surface types that are subject to functional assays assessing key immune effector cells, namely, primary neutrophil and macrophage responses in vitro. The data demonstrate that surface nanotopography leads to enhanced matrix metalloproteinase-9 production from primary neutrophils, and a decrease in pro-inflammatory cytokine secretion from primary macrophages. Together, these results are the first to directly compare the immunomodulatory effects of the cooperative interplay between surface nanotopography and chemistry.
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Affiliation(s)
- Susan N. Christo
- Experimental Therapeutics Laboratory; Sansom Institute and Hanson Institute; School of Pharmacy and Medical Science; University of South Australia; Adelaide SA 5000 Australia
| | - Akash Bachhuka
- Mawson Institute; University of South Australia; Adelaide SA 5095 Australia
| | - Kerrilyn R. Diener
- Experimental Therapeutics Laboratory; Sansom Institute and Hanson Institute; School of Pharmacy and Medical Science; University of South Australia; Adelaide SA 5000 Australia
- Research Institute; School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide SA 5005 Australia
- Robinson Research Institute; Discipline of Obstetrics and Gynecology; School of Medicine; University of Adelaide; SA 5005 Australia
| | | | - John D. Hayball
- Experimental Therapeutics Laboratory; Sansom Institute and Hanson Institute; School of Pharmacy and Medical Science; University of South Australia; Adelaide SA 5000 Australia
- Research Institute; School of Paediatrics and Reproductive Health; University of Adelaide; Adelaide SA 5005 Australia
- Robinson Research Institute; Discipline of Obstetrics and Gynecology; School of Medicine; University of Adelaide; SA 5005 Australia
- School of Medicine; University of Adelaide; Adelaide SA 5005 Australia
| | - Krasimir Vasilev
- Mawson Institute; University of South Australia; Adelaide SA 5095 Australia
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17
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Christo SN, Diener KR, Manavis J, Grimbaldeston MA, Bachhuka A, Vasilev K, Hayball JD. Inflammasome components ASC and AIM2 modulate the acute phase of biomaterial implant-induced foreign body responses. Sci Rep 2016; 6:20635. [PMID: 26860464 PMCID: PMC4748295 DOI: 10.1038/srep20635] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/06/2016] [Indexed: 01/03/2023] Open
Abstract
Detailing the inflammatory mechanisms of biomaterial-implant induced foreign body responses (FBR) has implications for revealing targetable pathways that may reduce leukocyte activation and fibrotic encapsulation of the implant. We have adapted a model of poly(methylmethacrylate) (PMMA) bead injection to perform an assessment of the mechanistic role of the ASC-dependent inflammasome in this process. We first demonstrate that ASC−/− mice subjected to PMMA bead injections had reduced cell infiltration and altered collagen deposition, suggesting a role for the inflammasome in the FBR. We next investigated the NLRP3 and AIM2 sensors because of their known contributions in recognising damaged and apoptotic cells. We found that NLRP3 was dispensable for the fibrotic encapsulation; however AIM2 expression influenced leukocyte infiltration and controlled collagen deposition, suggesting a previously unexplored link between AIM2 and biomaterial-induced FBR.
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Affiliation(s)
- Susan N Christo
- Experimental Therapeutics Laboratory, Sansom Institute and Hanson Institute, School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA, 5000, Australia
| | - Kerrilyn R Diener
- Experimental Therapeutics Laboratory, Sansom Institute and Hanson Institute, School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA, 5000, Australia.,Robinson Research Institute, School of Paediatrics and Reproductive Health, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Jim Manavis
- Centre for Neurological Diseases, SA Pathology, Adelaide, SA 5000, Australia
| | - Michele A Grimbaldeston
- Centre for Cancer Biology, University of South Australia and SA Pathology, SA 5000, Australia
| | - Akash Bachhuka
- Mawson Institute, University of South Australia, Adelaide, SA 5095, Australia
| | - Krasimir Vasilev
- Mawson Institute, University of South Australia, Adelaide, SA 5095, Australia
| | - John D Hayball
- Experimental Therapeutics Laboratory, Sansom Institute and Hanson Institute, School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA, 5000, Australia.,Robinson Research Institute, School of Paediatrics and Reproductive Health, University of Adelaide, Adelaide, SA, 5005, Australia.,School of Medicine, University of Adelaide, Adelaide, SA 5005, Australia
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Mon HH, Christo SN, Ndi CP, Jasieniak M, Rickard H, Hayball JD, Griesser HJ, Semple SJ. Serrulatane Diterpenoid from Eremophila neglecta Exhibits Bacterial Biofilm Dispersion and Inhibits Release of Pro-inflammatory Cytokines from Activated Macrophages. J Nat Prod 2015; 78:3031-40. [PMID: 26636180 DOI: 10.1021/acs.jnatprod.5b00833] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The purpose of this study was to assess the biofilm-removing efficacy and inflammatory activity of a serrulatane diterpenoid, 8-hydroxyserrulat-14-en-19-oic acid (1), isolated from the Australian medicinal plant Eremophila neglecta. Biofilm breakup activity of compound 1 on established Staphylococcus epidermidis and Staphylococcus aureus biofilms was compared to the antiseptic chlorhexidine and antibiotic levofloxacin. In a time-course study, 1 was deposited onto polypropylene mesh to mimic a wound dressing and tested for biofilm removal. The ex-vivo cytotoxicity and effect on lipopolysaccharide-induced pro-inflammatory cytokine release were studied in mouse primary bone-marrow-derived macrophage (BMDM) cells. Compound 1 was effective in dispersing 12 h pre-established biofilms with a 7 log10 reduction of viable bacterial cell counts, but was less active against 24 h biofilms (approximately 2 log10 reduction). Compound-loaded mesh showed dosage-dependent biofilm-removing capability. In addition, compound 1 displayed a significant inhibitory effect on tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) secretion from BMDM cells, but interleukin-1 beta (IL-1β) secretion was not significant. The compound was not cytotoxic to BMDM cells at concentrations effective in removing biofilm and lowering cytokine release. These findings highlight the potential of this serrulatane diterpenoid to be further developed for applications in wound management.
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Affiliation(s)
- Htwe H Mon
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, SA 5000, Australia
- Wound Management Innovation Cooperative Research Centre , Toowong, QLD 4066, Australia
| | - Susan N Christo
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, SA 5000, Australia
- Experimental Therapeutics Laboratory, Hanson Institute , Adelaide, SA 5000, Australia
| | - Chi P Ndi
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, SA 5000, Australia
| | - Marek Jasieniak
- Future Industries Institute, University of South Australia , Mawson Lakes, SA 5095, Australia
| | - Heather Rickard
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, SA 5000, Australia
| | - John D Hayball
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, SA 5000, Australia
- Experimental Therapeutics Laboratory, Hanson Institute , Adelaide, SA 5000, Australia
| | - Hans J Griesser
- Wound Management Innovation Cooperative Research Centre , Toowong, QLD 4066, Australia
- Future Industries Institute, University of South Australia , Mawson Lakes, SA 5095, Australia
| | - Susan J Semple
- Sansom Institute for Health Research, School of Pharmacy and Medical Sciences, University of South Australia , Adelaide, SA 5000, Australia
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19
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Ramiasa MN, Cavallaro AA, Mierczynska A, Christo SN, Gleadle JM, Hayball JD, Vasilev K. Plasma polymerised polyoxazoline thin films for biomedical applications. Chem Commun (Camb) 2015; 51:4279-82. [PMID: 25673366 DOI: 10.1039/c5cc00260e] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Poly(2-oxazoline)s are emerging revolutionary biomaterials, exhibiting comparable and even superior properties to well-established counterparts. Overcoming current tedious wet synthesis methods, we report solvent-free and substrate independent, plasma polymerised nanoscale biocompatible polyoxazoline coatings capable of controlling protein and cell adhesion, and significantly reducing biofilm build up.
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Affiliation(s)
- M N Ramiasa
- Mawson Institute, UniSA, Mawson Lakes, SA 5095, Australia.
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20
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Taheri S, Cavallaro A, Christo SN, Majewski P, Barton M, Hayball JD, Vasilev K. Antibacterial Plasma Polymer Films Conjugated with Phospholipid Encapsulated Silver Nanoparticles. ACS Biomater Sci Eng 2015; 1:1278-1286. [PMID: 33429675 DOI: 10.1021/acsbiomaterials.5b00338] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Medical device associated infections are a persistent medical problem which has not found a comprehensive solution yet. Over the last decades, there have been intense research efforts toward developing antibacterial coatings that could potentially improve medical outcomes. Silver nanoparticles have attracted a great deal of attention as a potent alternative to conventional antibiotics. Herein, we present a biologically inspired approach to synthesize phospholipid encapsulated silver nanoparticles and their surface immobilization to a functional plasma polymer interlayer to generate antibacterial coatings. The antibacterial efficacy of the coatings was evaluated against three medically relevant pathogens including the Gram-positive Staphylococcus aureus and Staphylococcus epidermidis, and the Gram-negative Pseudomonas aeruginosa. The innate immune response to the coatings was assessed in vitro using primary bone marrow derived macrophages (BMDM). Any potential cytotoxicity was studied with primary human dermal fibroblasts (HDFs). Overall, the coatings had excellent inhibition of bacterial growth. We also observed reduced expression of pro-inflammatory cytokines from BMDM which suggests a reduced inflammatory response. The combined properties of coatings developed in this study may make them a good candidate for application on medical devices such as catheters and wound dressings.
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Affiliation(s)
- Shima Taheri
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Alex Cavallaro
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Susan N Christo
- Sansom Institute, University of South Australia, Adelaide, SA 5000, Australia
| | - Peter Majewski
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Mary Barton
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - John D Hayball
- Sansom Institute, University of South Australia, Adelaide, SA 5000, Australia.,School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Mawson Lakes, SA 5095, Australia
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21
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Bachhuka A, Christo SN, Cavallaro A, Diener KR, Mierczynska A, Smith LE, Marian R, Manavis J, Hayball JD, Vasilev K. Hybrid core/shell microparticles and their use for understanding biological processes. J Colloid Interface Sci 2015; 457:9-17. [DOI: 10.1016/j.jcis.2015.06.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 11/27/2022]
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22
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Christo SN, Diener KR, Hayball JD. The functional contribution of calcium ion flux heterogeneity in T cells. Immunol Cell Biol 2015; 93:694-704. [PMID: 25823995 DOI: 10.1038/icb.2015.34] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/15/2015] [Accepted: 02/16/2015] [Indexed: 12/30/2022]
Abstract
The role of intracellular calcium ion oscillations in T-cell physiology is being increasingly appreciated by studies that describe how unique temporal and spatial calcium ion signatures can control different signalling pathways. Within this review, we provide detailed mechanisms of calcium ion oscillations, and emphasise the pivotal role that calcium signalling plays in directing crucial events pertaining to T-cell functionality. We also describe methods of calcium ion quantification, and take the opportunity to discuss how a deeper understanding of calcium signalling combined with new detection and quantification methodologies can be used to better design immunotherapies targeting T-cell responses.
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Affiliation(s)
- Susan N Christo
- Experimental Therapeutics Laboratory, Sansom Institute and Hanson Institute, School of Pharmacy and Medical Science, Division of Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Kerrilyn R Diener
- Experimental Therapeutics Laboratory, Sansom Institute and Hanson Institute, School of Pharmacy and Medical Science, Division of Health Sciences, University of South Australia, Adelaide, South Australia, Australia.,Robinson Research Institute, School of Paediatrics and Reproductive Health, Faculty of Health Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - John D Hayball
- Experimental Therapeutics Laboratory, Sansom Institute and Hanson Institute, School of Pharmacy and Medical Science, Division of Health Sciences, University of South Australia, Adelaide, South Australia, Australia.,School of Medicine, Faculty of Health Sciences, University of Adelaide, Adelaide, South Australia, Australia
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23
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Taheri S, Cavallaro A, Christo SN, Smith LE, Majewski P, Barton M, Hayball JD, Vasilev K. Substrate independent silver nanoparticle based antibacterial coatings. Biomaterials 2014; 35:4601-9. [DOI: 10.1016/j.biomaterials.2014.02.033] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 02/20/2014] [Indexed: 12/25/2022]
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24
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Christo SN, Sarvestani G, Griesser SS, Coad BR, Griesser HJ, Vasilev K, Brown MP, Diener KR, Hayball JD. Individual and Population Quantitative Analyses of Calcium Flux in T-Cells Activated on Functionalized Material Surfaces. Aust J Chem 2012. [DOI: 10.1071/ch11311] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We have developed a novel method for activating T-cells on material surfaces that enable individual and population-based analyses of intracellular calcium flux, as a quantitative measure of T-cell receptor engagement. Functionalized material surfaces were created using a plasma-polymerized foundation layer to immobilize stimulatory T-cell ligands, which could induce T-cell receptor-dependent calcium flux in naive T-cells. Real-time confocal microscopic detection and quantification of calcium flux using paired fluorescent ratiometric probes facilitated the tracking and analysis of response profiles of individual T-cells, as well as population analyses using a combination of individual T-cell events. This type of combined analysis cannot be achieved using traditional population-based flow cytometric approaches, and thus provides a logical step towards developing the capacity to assess the magnitude and quality of inherently heterogeneous effector T-cell responses to antigenic challenge.
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