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Randall KL, Flesch IEA, Mei Y, Miosge LA, Aye R, Yu Z, Domaschenz H, Hollett NA, Russell TA, Stefanovic T, Wong YC, Seneviratne S, Ballard F, Hernandez Gallardo R, Croft SN, Goodnow CC, Bertram EM, Enders A, Tscharke DC. DOCK2-deficiency causes defects in anti-viral T cell responses and impaired control of herpes simplex virus infection. J Infect Dis 2024:jiae077. [PMID: 38366567 DOI: 10.1093/infdis/jiae077] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 02/18/2024] Open
Abstract
The expanding number of rare immunodeficiency syndromes offers an opportunity to understand key genes that support immune defence against infectious diseases. However, analysis of these in patients is complicated by their treatments and co-morbid infections requiring the use of mouse models for detailed investigations. Here we develop a mouse model of DOCK2 immunodeficiency and demonstrate that these mice have delayed clearance of herpes simplex virus type 1 (HSV-1) infections. We also uncovered a critical, cell intrinsic role of DOCK2 in the priming of anti-viral CD8+ T cells and in particular their initial expansion, despite apparently normal early activation of these cells. When this defect was overcome by priming in vitro, DOCK2-deficient CD8+ T cells were surprisingly protective against HSV-1-disease, albeit not as effectively as wild type cells. These results shed light on a cellular deficiency that is likely to impact anti-viral immunity in DOCK2-deficient patients.
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Affiliation(s)
- Katrina L Randall
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
- School of Medicine and Psychology, Australian National University, Canberra ACT 2600
| | - Inge E A Flesch
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Yan Mei
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Lisa A Miosge
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Racheal Aye
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Zhijia Yu
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Heather Domaschenz
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Natasha A Hollett
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Tiffany A Russell
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Tijana Stefanovic
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Yik Chun Wong
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Sandali Seneviratne
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Fiona Ballard
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Raquel Hernandez Gallardo
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Sarah N Croft
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Christopher C Goodnow
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
- Garvan Institute of Medical Research, University of New South Wales, Darlinghurst, NSW 2010, Australia
| | - Edward M Bertram
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Anselm Enders
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - David C Tscharke
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
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Randall KL, Flesch IEA, Mei Y, Miosge LA, Aye R, Yu Z, Domaschenz H, Hollett NA, Russell TA, Stefanovic T, Wong YC, Goodnow CC, Bertram EM, Enders A, Tscharke DC. DOCK2-deficiency causes defects in anti-viral T cell responses and poor control of herpes simplex virus infection. bioRxiv 2023:2023.08.02.551154. [PMID: 37577614 PMCID: PMC10418165 DOI: 10.1101/2023.08.02.551154] [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] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
The expanding number of rare immunodeficiency syndromes offers an opportunity to understand key genes that support immune defence against infectious diseases. However, patients with these diseases are by definition rare. In addition, any analysis is complicated by treatments and co-morbid infections requiring the use of mouse models for detailed investigations. Here we develop a mouse model of DOCK2 immunodeficiency and demonstrate that these mice have delayed clearance of herpes simplex virus type 1 (HSV-1) infections. Further, we found that they have a critical, cell intrinsic role of DOCK2 in the clonal expansion of anti-viral CD8+ T cells despite normal early activation of these cells. Finally, while the major deficiency is in clonal expansion, the ability of primed and expanded DOCK2-deficient CD8+ T cells to protect against HSV-1-infection is also compromised. These results provide a contributing cause for the frequent and devastating viral infections seen in DOCK2-deficient patients and improve our understanding of anti-viral CD8+ T cell immunity.
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Affiliation(s)
- Katrina L Randall
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
- School of Medicine and Psychology, Australian National University, Canberra ACT 2600
| | - Inge E A Flesch
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Yan Mei
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Lisa A Miosge
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Racheal Aye
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Zhijia Yu
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Heather Domaschenz
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Natasha A Hollett
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Tiffany A Russell
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Tijana Stefanovic
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Yik Chun Wong
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Christopher C Goodnow
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
- Garvan Institute of Medical Research, University of New South Wales, Darlinghurst, NSW 2010, Australia
| | - Edward M Bertram
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Anselm Enders
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - David C Tscharke
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
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Sutton HJ, Aye R, Idris AH, Vistein R, Nduati E, Kai O, Mwacharo J, Li X, Gao X, Andrews TD, Koutsakos M, Nguyen THO, Nekrasov M, Milburn P, Eltahla A, Berry AA, Kc N, Chakravarty S, Sim BKL, Wheatley AK, Kent SJ, Hoffman SL, Lyke KE, Bejon P, Luciani F, Kedzierska K, Seder RA, Ndungu FM, Cockburn IA. Atypical B cells are part of an alternative lineage of B cells that participates in responses to vaccination and infection in humans. Cell Rep 2021; 34:108684. [PMID: 33567273 PMCID: PMC7873835 DOI: 10.1016/j.celrep.2020.108684] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 11/19/2020] [Accepted: 12/30/2020] [Indexed: 11/29/2022] Open
Abstract
The diversity of circulating human B cells is unknown. We use single-cell RNA sequencing (RNA-seq) to examine the diversity of both antigen-specific and total B cells in healthy subjects and malaria-exposed individuals. This reveals two B cell lineages: a classical lineage of activated and resting memory B cells and an alternative lineage, which includes previously described atypical B cells. Although atypical B cells have previously been associated with disease states, the alternative lineage is common in healthy controls, as well as malaria-exposed individuals. We further track Plasmodium-specific B cells after malaria vaccination in naive volunteers. We find that alternative lineage cells are primed after the initial immunization and respond to booster doses. However, alternative lineage cells develop an atypical phenotype with repeated boosts. The data highlight that atypical cells are part of a wider alternative lineage of B cells that are a normal component of healthy immune responses. Single-cell RNA-seq reveals two distinct B cell lineages An alternative lineage contains CXCR3+ and atypical B cells Alternative B cells are primed after primary vaccination and respond to boosters Alternative B cells adopt a more atypical phenotype following repeated antigen exposure
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Affiliation(s)
- Henry J Sutton
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia
| | - Racheal Aye
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia; KEMRI - Wellcome Research Programme/Centre for Geographical Medicine Research (Coast), Kilifi, Kenya
| | - Azza H Idris
- Vaccine Research Center, National Institutes of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD 20892, USA
| | - Rachel Vistein
- Vaccine Research Center, National Institutes of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD 20892, USA
| | - Eunice Nduati
- KEMRI - Wellcome Research Programme/Centre for Geographical Medicine Research (Coast), Kilifi, Kenya; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK
| | - Oscar Kai
- KEMRI - Wellcome Research Programme/Centre for Geographical Medicine Research (Coast), Kilifi, Kenya
| | - Jedida Mwacharo
- KEMRI - Wellcome Research Programme/Centre for Geographical Medicine Research (Coast), Kilifi, Kenya
| | - Xi Li
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia
| | - Xin Gao
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia
| | - T Daniel Andrews
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia
| | - Marios Koutsakos
- Department of Microbiology and Immunology, Peter Doherty Institute, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Thi H O Nguyen
- Department of Microbiology and Immunology, Peter Doherty Institute, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Maxim Nekrasov
- Australian Cancer Research Foundation Biomolecular Resource Facility, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia
| | - Peter Milburn
- Australian Cancer Research Foundation Biomolecular Resource Facility, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia
| | - Auda Eltahla
- School of Medical Science, Kirby Institute, University of New South Wales, Sydney, NSW 2052, Australia
| | - Andrea A Berry
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | | | | | | | - Adam K Wheatley
- Department of Microbiology and Immunology, Peter Doherty Institute, University of Melbourne, Melbourne, VIC 3000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Melbourne, VIC, Australia
| | - Stephen J Kent
- Department of Microbiology and Immunology, Peter Doherty Institute, University of Melbourne, Melbourne, VIC 3000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Melbourne, VIC, Australia
| | | | - Kirsten E Lyke
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Philip Bejon
- KEMRI - Wellcome Research Programme/Centre for Geographical Medicine Research (Coast), Kilifi, Kenya; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK
| | - Fabio Luciani
- School of Medical Science, Kirby Institute, University of New South Wales, Sydney, NSW 2052, Australia
| | - Katherine Kedzierska
- Department of Microbiology and Immunology, Peter Doherty Institute, University of Melbourne, Melbourne, VIC 3000, Australia
| | - Robert A Seder
- Vaccine Research Center, National Institutes of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD 20892, USA
| | - Francis M Ndungu
- KEMRI - Wellcome Research Programme/Centre for Geographical Medicine Research (Coast), Kilifi, Kenya; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK
| | - Ian A Cockburn
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, ACT 2601, Australia.
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Aye R, Sutton HJ, Nduati EW, Kai O, Mwacharo J, Musyoki J, Otieno E, Wambua J, Bejon P, Cockburn IA, Ndungu FM. Malaria exposure drives both cognate and bystander human B cells to adopt an atypical phenotype. Eur J Immunol 2020; 50:1187-1194. [PMID: 32222961 PMCID: PMC7611263 DOI: 10.1002/eji.201948473] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 11/25/2019] [Revised: 02/04/2020] [Indexed: 01/13/2023]
Abstract
Atypical memory B cells (aMBCs) are found in elevated numbers in individuals exposed to malaria. A key question is whether malaria induces aMBCs as a result of exposure to Ag, or non-Ag-specific mechanisms. We identified Plasmodium and bystander tetanus toxoid (TT) specific B cells in individuals from areas of previous and persistent exposure to malaria using tetramers. Malaria-specific B cells were more likely to be aMBCs than TT-specific B cells. However, TT-specific B cells from individuals with continuous exposure to malaria were more likely to be aMBCs than TT-specific B cells in individuals from areas where transmission has ceased. Finally, sequences of BCRs specific for a blood stage malaria-Ag were more highly mutated than sequences from TT-specific BCRs and under strong negative selection, indicative of ongoing antigenic pressure. Our data suggest both persistent Ag exposure and the inflammatory environment shape the B-cell response to malaria and bystander Ags.
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Affiliation(s)
- Racheal Aye
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.,Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Henry J Sutton
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Eunice W Nduati
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.,Nuffield Department of Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Oscar Kai
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya
| | - Jedida Mwacharo
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya
| | - Jennifer Musyoki
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya
| | - Edward Otieno
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya
| | - Juliana Wambua
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya
| | - Philip Bejon
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.,Nuffield Department of Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Ian A Cockburn
- Department of Immunology and Infectious Disease, John Curtin School of Medical Research, The Australian National University, Canberra, Australia
| | - Francis M Ndungu
- Department of Biosciences, Centre for Geographical Medicine Research (Coast), Kenya Medical Research Institute, Nairobi, Kenya.,Nuffield Department of Medicine, Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
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Abstract
B-cell and antibody responses to Plasmodium spp., the parasite that causes malaria, are critical for control of parasitemia and associated immunopathology. Antibodies also provide protection to reinfection. Long-lasting B-cell memory has been shown to occur in response to Plasmodium spp. in experimental model infections, and in human malaria. However, there are reports that antibody responses to several malaria antigens in young children living with malaria are not similarly long-lived, suggesting a dysfunction in the maintenance of circulating antibodies. Some studies attribute this to the expansion of atypical memory B cells (AMB), which express multiple inhibitory receptors and activation markers, and are hyporesponsive to B-cell receptor (BCR) restimulation in vitro. AMB are also expanded in other chronic infections such as tuberculosis, hepatitis B and C, and HIV, as well as in autoimmunity and old age, highlighting the importance of understanding their role in immunity. Whether AMB are dysfunctional remains controversial, as there are also studies in other infections showing that AMB can produce isotype-switched antibodies and in mouse can contribute to protection against infection. In light of these controversies, we review the most recent literature on either side of the debate and challenge some of the currently held views regarding B-cell responses to Plasmodium infections.
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Affiliation(s)
- Damián Pérez‐Mazliah
- The Francis Crick InstituteLondonUK
- York Biomedical Research InstituteHull York Medical SchoolUniversity of YorkYorkUK
| | | | - Racheal Aye
- Department of Immunology and Infectious DiseaseJohn Curtin School of Medical ResearchThe Australian National UniversityCanberraAustralia
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Rayburn J, Wilshire C, Gilbert C, Weerasinghe R, Louie B, Aye R, Farivar A, Vallieres E, Gorden J. MA02.02 Multistate Healthcare Network Underutilizes Valuable End-of-Life Resources in Stage IV Non-Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.323] [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] [Indexed: 10/28/2022]
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Feczko A, Cattoni M, Vallieres E, Brown L, Sarkeshik A, Margaritora S, Siclliani A, Filosso P, Guerrera F, Siclliani AA, Rotolo N, Farjah F, Wandell G, Costas K, Mann C, Hubka M, Kaplan S, Wilshire C, Farivar A, Aye R, Louie B. PUB039 FDG-PET Scanning Has a Limited Role in the Management of Low and Intermediate Grade Neuroendocrine Tumors of Lung. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1902] [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] [Indexed: 10/18/2022]
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Rayburn J, Wilshire C, Gilbert C, Louie B, Aye R, Farivar A, Vallieres E, Gorden J. P1.05-012 Treatment Planning in Non-Small Cell Lung Cancer Shows Variable Utilization of Multidisciplinary Tumor Board. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.884] [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] [Indexed: 11/28/2022]
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Carlson A, Wilshire C, Fathi J, Rayburn J, Gilbert C, Blanshan S, Louie B, Aye R, Farivar A, Vallieres E, Gorden J. P2.13-019 Attrition Rate in Community-Based Lung Cancer Screening: One and Done. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Rayburn J, Wilshire C, Gilbert C, Louie B, Aye R, Farivar A, Vallieres E, Gorden J. P1.10-008 Palliative Care and Hospice Resources are Underutilized in Patients with Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.994] [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] [Indexed: 11/30/2022]
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Rayburn J, Wilshire C, Gilbert C, Louie B, Aye R, Farivar A, Vallieres E, Gorden J. P3.13-029 Imaging Guideline-Recommendations Prior to Treatment for Non-Small Cell Lung Cancer Demonstrates Variable Compliance. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1764] [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] [Indexed: 10/18/2022]
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Cattoni M, Vallières E, Dominioni L, Granone P, Costas K, Siciliani A, Mann C, Farivar A, Imperatori A, Aye R, Louie B. P-175IS THERE A ROLE FOR TRADITIONAL NUCLEAR MEDICINE IMAGING IN THE MANAGEMENT OF PULMONARY CARCINOID TUMOURS? Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.173] [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] [Indexed: 11/14/2022] Open
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13
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Mwirigi M, Nkando I, Aye R, Soi R, Ochanda H, Berberov E, Potter A, Gerdts V, Perez-Casal J, Naessens J, Wesonga H. Experimental evaluation of inactivated and live attenuated vaccines against Mycoplasma mycoides subsp. mycoides. Vet Immunol Immunopathol 2015; 169:63-7. [PMID: 26827840 DOI: 10.1016/j.vetimm.2015.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 11/25/2015] [Accepted: 12/11/2015] [Indexed: 11/24/2022]
Abstract
The current control method for contagious bovine pleuropneumonia (CBPP) in Africa is vaccination with a live, attenuated strain of Mycoplasma mycoides subsp. mycoides (Mmm). However, this method is not very efficient and often causes serious adverse reactions. Several studies have attempted to induce protection using inactivated mycoplasma, but with widely contradictory results. Therefore, we compared the protective capacity of the live T1/44 vaccine with two inactivated preparations of Mmm strain Afadé, inoculated with an adjuvant. Protection was measured after a challenge with Afadé. The protection levels were 31%, 80.8% and 74.1% for the formalin-inactivated, heat-inactivated and live attenuated preparations, respectively. These findings indicate that low doses of heat-inactivated Mmm can offer protection to a level similar to the current live attenuated (T1/44) vaccine formulation.
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Affiliation(s)
- Martin Mwirigi
- International Livestock Research Institute, P.O. Box 30709-00100, Nairobi, Kenya; Kenya Agricultural and Livestock Research Organisation, Biotechnology Research Institute, P.O. Box 14733 00800, Nairobi, Kenya.
| | - Isabel Nkando
- Kenya Agricultural and Livestock Research Organisation, Veterinary Science Research Institute, P.O. Box 32-00902, Kikuyu, Kenya
| | - Racheal Aye
- International Livestock Research Institute, P.O. Box 30709-00100, Nairobi, Kenya
| | - Reuben Soi
- Kenya Agricultural and Livestock Research Organisation, Biotechnology Research Institute, P.O. Box 14733 00800, Nairobi, Kenya
| | | | - Emil Berberov
- Vaccine and Infectious Disease Organization - International Vaccine Centre, 120 Veterinary Road Saskatoon, SK S7N 5E3, Saskatoon, Canada
| | - Andrew Potter
- Vaccine and Infectious Disease Organization - International Vaccine Centre, 120 Veterinary Road Saskatoon, SK S7N 5E3, Saskatoon, Canada
| | - Volker Gerdts
- Vaccine and Infectious Disease Organization - International Vaccine Centre, 120 Veterinary Road Saskatoon, SK S7N 5E3, Saskatoon, Canada
| | - Jose Perez-Casal
- Vaccine and Infectious Disease Organization - International Vaccine Centre, 120 Veterinary Road Saskatoon, SK S7N 5E3, Saskatoon, Canada
| | - Jan Naessens
- International Livestock Research Institute, P.O. Box 30709-00100, Nairobi, Kenya
| | - Hezron Wesonga
- Kenya Agricultural and Livestock Research Organisation, Veterinary Science Research Institute, P.O. Box 32-00902, Kikuyu, Kenya
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Wilshire C, Shultz D, Aye R, Farivar A, Vallières E, Louie B. F-055MINIMALLY INVASIVE THYMECTOMY FOR LARGE THYMOMAS IS ASSOCIATED WITH LOW PERIOPERATIVE MORBIDITY AND MORTALITY. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.55] [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] [Indexed: 11/13/2022] Open
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15
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Castiglioni M, Aye R, Gorden J, Louie B, Farivar A, Vallières E. P-242PATIENTS WITH RESECTABLE STAGE IIIA NON-SMALL CELL LUNG CANCER IN WHOM N2 DISEASE IS DETECTED AT PREOPERATIVE INVASIVE STAGING OF THE MEDIASTINUM EXHIBIT BETTER SURVIVAL COMPARED TO PATIENTS WITH N2 DISEASE DISCOVERED INTRAOPERATIVELY. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.242] [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] [Indexed: 11/14/2022] Open
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Aye R, Mwirigi MK, Frey J, Pilo P, Jores J, Naessens J. Cyto-adherence of Mycoplasma mycoides subsp. mycoides to bovine lung epithelial cells. BMC Vet Res 2015; 11:27. [PMID: 25881067 PMCID: PMC4336739 DOI: 10.1186/s12917-015-0347-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 07/15/2014] [Accepted: 01/30/2015] [Indexed: 11/10/2022] Open
Abstract
Background Mycoplasma mycoides subsp. mycoides (Mmm) is the causative agent of contagious bovine pleuropneumonia (CBPP), a respiratory disease of cattle, whereas the closely related Mycoplasma mycoides subsp. capri (Mmc) is a goat pathogen. Cyto-adherence is a crucial step in host colonization by mycoplasmas and subsequent pathogenesis. The aim of this study was to investigate the interactions between Mmm and mammalian host cells by establishing a cyto-adherence flow cytometric assay and comparing tissue and species specificity of Mmm and Mmc strains. Results There were little significant differences in the adherence patterns of eight different Mmm strains to adult bovine lung epithelial cells. However, there was statistically significant variation in binding to different host cells types. Highest binding was observed with lung epithelial cells, intermediate binding with endothelial cells and very low binding with fibroblasts, suggesting the presence of effective adherence of Mmm on cells lining the airways of the lung, which is the target organ for this pathogen, possibly by high expression of a specific receptor. However, binding to bovine fetal lung epithelial cells was comparably low; suggesting that the lack of severe pulmonary disease seen in many infected young calves can be explained by reduced expression of a specific receptor. Conclusions Mmm bound with high efficiency to adult bovine lung cells and less efficiently to calves or goat lung cells. The data show that cyto-adherence of Mmm is species- and tissue- specific confirming its role in colonization of the target host and subsequent infection and development of CBPP. Electronic supplementary material The online version of this article (doi:10.1186/s12917-015-0347-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Racheal Aye
- International Livestock Research Institute, P. O. Box 30709-00100, Nairobi, Kenya.
| | | | - Joachim Frey
- Institute of Veterinary Bacteriology, University of Bern, Bern, Switzerland.
| | - Paola Pilo
- Institute of Veterinary Bacteriology, University of Bern, Bern, Switzerland.
| | - Joerg Jores
- International Livestock Research Institute, P. O. Box 30709-00100, Nairobi, Kenya. .,Institute of Veterinary Bacteriology, University of Bern, Bern, Switzerland.
| | - Jan Naessens
- International Livestock Research Institute, P. O. Box 30709-00100, Nairobi, Kenya.
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Louie B, Daniel S, Wada E, Tennent N, Vallieres E, Aye R. Lessons learned from 110 consecutive vats lobectomies for primary, early-stage non-small cell lung cancer. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.7526] [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] [Indexed: 11/20/2022] Open
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Abstract
Gastroesophageal reflux disease, with its attendant symptoms and complications of heartburn, esophagitis, dysphagia, and upper gastrointestinal bleeding, is the most common disorder of the upper gastrointestinal tract. The open Hill repair, which has been utilized in more than 2000 patients, is best defined as restoration of the anti-reflux barrier. The anti-reflux barrier includes the gastroesophageal valve, lower esophageal sphincter, and diaphragm. The Hill repair has now been done laparoscopically in 17 patients (10 men and 7 women) who have been entered into a detailed protocol, including pre-operative evaluation, intra-operative monitoring, and post-operative evaluation. Results have been excellent, with correction of reflux in all patients. Duration of follow-up ranges from 1 to 18 months, with a mean of 10.5 months. No mortality or serious complications have occurred. Extensive post-operative testing in 13 patients, including complete symptom evaluation, standard acid reflux testing, and 24-hour pH monitoring, has shown no recurrence of reflux; lower esophageal sphincter pressure has been restored to a mean of 28 mm Hg, and gastroesophageal valve status to grade 1. Because the laparoscopic procedure is similar to the open Hill repair, expectations for good long-term results are very high.
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Affiliation(s)
- S J Kraemer
- Swedish Hospital Medical Center, Virginia Mason Medical Center, University of Washington, Seattle
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Friedman S, Sullivan K, Salk D, Nelp WB, Griep RJ, Johnson DH, Blend MJ, Aye R, Suppers V, Abrams PG. Staging non-small cell carcinoma of the lung using technetium-99m-labeled monoclonal antibodies. Hematol Oncol Clin North Am 1990; 4:1069-78. [PMID: 1962776] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A technetium-labeled monoclonal antibody was administered to 52 patients with non-small cell lung carcinoma, either to stage the mediastinum preoperatively or to detect distant metastases. Results from planar and tomographic imaging are compared to CT and histologic confirmation. Differences in detection rates and predictive values between imaging modalities are discussed. The authors conclude that imaging with a technetium-labeled monoclonal antibody is safe and accurate and may be useful for staging patients with either operable or inoperable non-small cell lung cancer.
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