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McCulloch TR, Rossi GR, Schreuder J, Belz GT, Wells TJ, Souza-Fonseca-Guimaraes F. CIS and TGF-β regulatory pathways influence immunity to bacterial infection. Immunology 2022; 167:54-63. [PMID: 35611558 DOI: 10.1111/imm.13516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022] Open
Abstract
Immunotherapy has revolutionized cancer therapy by reactivating tumor-resident cytotoxic lymphocytes. More recently, immunotherapy has emerged to restore immunity against infectious agents, including bacterial infections. Immunotherapy primarily targets inhibitory pathways in T cells, however interest in other effector populations, such as natural killer (NK) cells, is growing. We have previously discovered that NK cell metabolism, proliferation, and activation can be neutralized through the transforming growth factor (TGF)-β immunosuppressive pathway by inducing plasticity of NK cells and differentiation into innate lymphoid cell (ILC)1-like subsets. NK cells are also regulated through cytokine-inducible SH2-containing protein (CIS), which is induced by interleukin (IL)-15 and is a potent intracellular checkpoint suppressing NK cell survival and function. Targeting these two distinct pathways to restore NK cell function has shown promise in cancer models, but their application in bacterial infection remains unknown. Here, we investigate whether enhancement of NK cell function can improve anti-bacterial immunity, using Salmonella Typhimurium as a model. We identified conversion of NK cells to ILC1-like for the first time in the context of bacterial infection, where TGF-β signaling contributed to this plasticity. Future work should focus on identifying further drivers of ILC1 plasticity and its functional implication in bacterial infection models. We further describe that CIS-deficient mice displayed enhanced pro-inflammatory function and dramatically enhanced anti-bacterial immunity. Inhibition of CIS may present as a viable therapeutic option to enhance immunity towards bacterial infection.
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Affiliation(s)
- Timothy R McCulloch
- University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Gustavo R Rossi
- University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Jaring Schreuder
- University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Gabrielle T Belz
- University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia
| | - Timothy J Wells
- University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Woolloongabba, QLD, Australia.,Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, QLD, Australia
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2
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Naik S, Tian L, Tomei S, Schreuder J, Weber T, Amman-Zalcenstein D, Lin D, Tran J, Audiger C, Bahlo M, Chu M, Diakumis P, Gouil Q, Hilton A, Jarratt A, Willson T, Kats L, kelly M, Pang ES, O'Keeffe M, Patton T, Sargeant T, Su S, Hodgkin P, Ng A, Ritchie M. 3104 – CLONAL MULTI-OMICS METHODS SIS-SEQ AND SIS-SKEW REVEAL BCOR AS A NEGATIVE REGULATOR OF EMERGENCY DENDRITIC CELL DEVELOPMENT. Exp Hematol 2021. [DOI: 10.1016/j.exphem.2021.12.321] [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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3
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Lin D, Naik S, Weber T, Schreuder J. 3087 – MULTI-STAGE CELLULAR BARCODING MAPS THE LINEAGE COMMITMENT CONTINUUM OF HEMATOPOIESIS. Exp Hematol 2021. [DOI: 10.1016/j.exphem.2021.12.305] [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: 11/26/2022]
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4
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Jacquelot N, Seillet C, Wang M, Pizzolla A, Liao Y, Hediyeh-Zadeh S, Grisaru-Tal S, Louis C, Huang Q, Schreuder J, Souza-Fonseca-Guimaraes F, de Graaf CA, Thia K, Macdonald S, Camilleri M, Luong K, Zhang S, Chopin M, Molden-Hauer T, Nutt SL, Umansky V, Ciric B, Groom JR, Foster PS, Hansbro PM, McKenzie ANJ, Gray DHD, Behren A, Cebon J, Vivier E, Wicks IP, Trapani JA, Munitz A, Davis MJ, Shi W, Neeson PJ, Belz GT. Blockade of the co-inhibitory molecule PD-1 unleashes ILC2-dependent antitumor immunity in melanoma. Nat Immunol 2021; 22:851-864. [PMID: 34099918 PMCID: PMC7611091 DOI: 10.1038/s41590-021-00943-z] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [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: 10/10/2020] [Accepted: 04/26/2021] [Indexed: 01/17/2023]
Abstract
Group 2 innate lymphoid cells (ILC2s) are essential to maintain tissue homeostasis. In cancer, ILC2s can harbor both pro-tumorigenic and anti-tumorigenic functions, but we know little about their underlying mechanisms or whether they could be clinically relevant or targeted to improve patient outcomes. Here, we found that high ILC2 infiltration in human melanoma was associated with a good clinical prognosis. ILC2s are critical producers of the cytokine granulocyte-macrophage colony-stimulating factor, which coordinates the recruitment and activation of eosinophils to enhance antitumor responses. Tumor-infiltrating ILC2s expressed programmed cell death protein-1, which limited their intratumoral accumulation, proliferation and antitumor effector functions. This inhibition could be overcome in vivo by combining interleukin-33-driven ILC2 activation with programmed cell death protein-1 blockade to significantly increase antitumor responses. Together, our results identified ILC2s as a critical immune cell type involved in melanoma immunity and revealed a potential synergistic approach to harness ILC2 function for antitumor immunotherapies.
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Affiliation(s)
- Nicolas Jacquelot
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
- Princess Margaret Cancer Centre, Toronto, Ontario, Canada.
| | - Cyril Seillet
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Minyu Wang
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Angela Pizzolla
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Yang Liao
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Heidelberg, Victoria, Australia
| | - Soroor Hediyeh-Zadeh
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Sharon Grisaru-Tal
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Cynthia Louis
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Qiutong Huang
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Queensland, Australia
| | - Jaring Schreuder
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Queensland, Australia
| | | | - Carolyn A de Graaf
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kevin Thia
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Sean Macdonald
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Mary Camilleri
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kylie Luong
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Shengbo Zhang
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Michael Chopin
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Tristan Molden-Hauer
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Stephen L Nutt
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Viktor Umansky
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Joanna R Groom
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Paul S Foster
- Priority Research Centres for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
| | - Philip M Hansbro
- Priority Research Centres for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, New South Wales, Australia
- Centre for Inflammation, Centenary Institute, Sydney, New South Wales, Australia
- School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | | | - Daniel H D Gray
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Andreas Behren
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jonathan Cebon
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Heidelberg, Victoria, Australia
- Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia
- Ludwig Institute for Cancer Research, Melbourne-Austin Branch, Melbourne, Victoria, Australia
| | - Eric Vivier
- Innate Pharma Research Labs, Marseille, France
- Aix Marseille University, CNRS, INSERM, CIML, Marseille, France
- Service d'Immunologie, Marseille Immunopole, Hôpital de la Timone, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - Ian P Wicks
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
- Rheumatology Unit, Royal Melbourne Hospital, Melbourne, Australia
| | - Joseph A Trapani
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Melissa J Davis
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Department of Computing and Information Systems, University of Melbourne, Melbourne, Victoria, Australia
| | - Wei Shi
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Victoria, Australia
- School of Cancer Medicine, La Trobe University, Heidelberg, Victoria, Australia
- Department of Computing and Information Systems, University of Melbourne, Melbourne, Victoria, Australia
| | - Paul J Neeson
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Gabrielle T Belz
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia.
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Queensland, Australia.
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5
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Tian L, Tomei S, Schreuder J, Weber TS, Amann-Zalcenstein D, Lin DS, Tran J, Audiger C, Chu M, Jarratt A, Willson T, Hilton A, Pang ES, Patton T, Kelly M, Su S, Gouil Q, Diakumis P, Bahlo M, Sargeant T, Kats LM, Hodgkin PD, O'Keeffe M, Ng AP, Ritchie ME, Naik SH. Clonal multi-omics reveals Bcor as a negative regulator of emergency dendritic cell development. Immunity 2021; 54:1338-1351.e9. [PMID: 33862015 DOI: 10.1016/j.immuni.2021.03.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 02/05/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
Despite advances in single-cell multi-omics, a single stem or progenitor cell can only be tested once. We developed clonal multi-omics, in which daughters of a clone act as surrogates of the founder, thereby allowing multiple independent assays per clone. With SIS-seq, clonal siblings in parallel "sister" assays are examined either for gene expression by RNA sequencing (RNA-seq) or for fate in culture. We identified, and then validated using CRISPR, genes that controlled fate bias for different dendritic cell (DC) subtypes. This included Bcor as a suppressor of plasmacytoid DC (pDC) and conventional DC type 2 (cDC2) numbers during Flt3 ligand-mediated emergency DC development. We then developed SIS-skew to examine development of wild-type and Bcor-deficient siblings of the same clone in parallel. We found Bcor restricted clonal expansion, especially for cDC2s, and suppressed clonal fate potential, especially for pDCs. Therefore, SIS-seq and SIS-skew can reveal the molecular and cellular mechanisms governing clonal fate.
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Affiliation(s)
- Luyi Tian
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Epigenetics and Development Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Sara Tomei
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Jaring Schreuder
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Tom S Weber
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Daniela Amann-Zalcenstein
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Single Cell Open Research Endeavour (SCORE), The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Dawn S Lin
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Jessica Tran
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Cindy Audiger
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Mathew Chu
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Andrew Jarratt
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Tracy Willson
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Adrienne Hilton
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Ee Shan Pang
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia
| | - Timothy Patton
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia
| | - Madison Kelly
- The Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Shian Su
- Epigenetics and Development Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Quentin Gouil
- Epigenetics and Development Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Peter Diakumis
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Melanie Bahlo
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Population Health and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Toby Sargeant
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Lev M Kats
- The Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia; The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Philip D Hodgkin
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Meredith O'Keeffe
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia
| | - Ashley P Ng
- Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Matthew E Ritchie
- Epigenetics and Development Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Shalin H Naik
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Single Cell Open Research Endeavour (SCORE), The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.
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6
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Lin DS, Tian L, Tomei S, Amann-Zalcenstein D, Baldwin TM, Weber TS, Schreuder J, Stonehouse OJ, Rautela J, Huntington ND, Taoudi S, Ritchie ME, Hodgkin PD, Ng AP, Nutt SL, Naik SH. Single-cell analyses reveal the clonal and molecular aetiology of Flt3L-induced emergency dendritic cell development. Nat Cell Biol 2021; 23:219-231. [PMID: 33649477 DOI: 10.1038/s41556-021-00636-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 06/11/2020] [Accepted: 01/19/2021] [Indexed: 01/31/2023]
Abstract
Regulation of haematopoietic stem and progenitor cell (HSPC) fate is crucial during homeostasis and under stress conditions. Here we examine the aetiology of the Flt3 ligand (Flt3L)-mediated increase of type 1 conventional dendritic cells (cDC1s). Using cellular barcoding we demonstrate this occurs through selective clonal expansion of HSPCs that are primed to produce cDC1s and not through activation of cDC1 fate by other HSPCs. In particular, multi/oligo-potent clones selectively amplify their cDC1 output, without compromising the production of other lineages, via a process we term tuning. We then develop Divi-Seq to simultaneously profile the division history, surface phenotype and transcriptome of individual HSPCs. We discover that Flt3L-responsive HSPCs maintain a proliferative 'early progenitor'-like state, leading to the selective expansion of multiple transitional cDC1-primed progenitor stages that are marked by Irf8 expression. These findings define the mechanistic action of Flt3L through clonal tuning, which has important implications for other models of 'emergency' haematopoiesis.
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Affiliation(s)
- Dawn S Lin
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Luyi Tian
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
- Epigenetics and Development Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Sara Tomei
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Daniela Amann-Zalcenstein
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Single Cell Open Research Endeavour (SCORE), Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Tracey M Baldwin
- Single Cell Open Research Endeavour (SCORE), Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Blood Cells and Blood Cancer Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Tom S Weber
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Jaring Schreuder
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Olivia J Stonehouse
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
- Epigenetics and Development Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Jai Rautela
- Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Nicholas D Huntington
- Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Samir Taoudi
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Epigenetics and Development Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Matthew E Ritchie
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Epigenetics and Development Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Philip D Hodgkin
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Ashley P Ng
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Blood Cells and Blood Cancer Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Stephen L Nutt
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Shalin H Naik
- Immunology Division, Walter and Eliza Hall Institute, Parkville, VIC, Australia.
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.
- Single Cell Open Research Endeavour (SCORE), Walter and Eliza Hall Institute, Parkville, VIC, Australia.
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7
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Saha I, Jaiswal H, Mishra R, Nel HJ, Schreuder J, Kaushik M, Singh Chauhan K, Singh Rawat B, Thomas R, Naik S, Kumar H, Tailor P. RelB suppresses type I Interferon signaling in dendritic cells. Cell Immunol 2020; 349:104043. [PMID: 32044112 DOI: 10.1016/j.cellimm.2020.104043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 09/26/2019] [Revised: 12/23/2019] [Accepted: 01/10/2020] [Indexed: 10/25/2022]
Abstract
Type I Interferon (IFN) signaling plays a critical role in dendritic cell (DC) development and functions. Inhibition of hyper type I IFN signaling promotes cDC2 subtype development. Relb is essential to development of cDC2 subtype and here we analyzed its effect on type I IFN signaling in DCs. We show that Relb suppresses the homeostatic type I IFN signaling in cDC2 cultures. TLR stimulation of FL-DCs led to RelB induction coinciding with fall in IFN signatures; conforming with the observation Relb expression reduced TLR stimulated IFN induction along with decrease in ISGs. Towards understanding mechanism, we show that effects of RelB are mediated by increased levels of IκBα. We demonstrate that RelB dampened antiviral responses by lowering ISG levels and the defect in cDC2 development in RelB null mice can be rescued in Ifnar1-/- background. Overall, we propose a novel role of RelB as a negative regulator of the type I IFN signaling pathway; fine tuning development of cDC2 subtype.
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Affiliation(s)
- Irene Saha
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | - Hemant Jaiswal
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | - Richa Mishra
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal 462066, India
| | - Hendrik J Nel
- The University of Queensland Diamantina Institute, Faculty of Medicine, Princess Alexandra Hospital, Woolloongabba, Australia
| | - Jaring Schreuder
- Molecular Medicine Division, Walter and Eliza Hall Institute, Parkville, VIC 3052, Australia
| | - Monika Kaushik
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | | | | | - Ranjeny Thomas
- The University of Queensland Diamantina Institute, Faculty of Medicine, Princess Alexandra Hospital, Woolloongabba, Australia
| | - Shalin Naik
- Molecular Medicine Division, Walter and Eliza Hall Institute, Parkville, VIC 3052, Australia
| | - Himanshu Kumar
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal 462066, India
| | - Prafullakumar Tailor
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India.
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8
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Tomei S, Zalcenstein D, Tian L, Schreuder J, Lin D, McKenzie M, Jarratt A, Hilton A, Jackson J, Shields B, Rago LD, McCormack M, Hilton D, Ritchie M, Ng A, Naik S. DACH1 DOWNREGULATION DELINEATE A LYMPHOID PRIMED PROGENITOR (LPP) POPULATION WITHIN THE MPP4 CLUSTER. Exp Hematol 2019. [DOI: 10.1016/j.exphem.2019.06.448] [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: 10/26/2022]
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9
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Merino D, Weber TS, Serrano A, Vaillant F, Liu K, Pal B, Di Stefano L, Schreuder J, Lin D, Chen Y, Asselin-Labat ML, Schumacher TN, Cameron D, Smyth GK, Papenfuss AT, Lindeman GJ, Visvader JE, Naik SH. Publisher Correction: Barcoding reveals complex clonal behavior in patient-derived xenografts of metastatic triple negative breast cancer. Nat Commun 2019; 10:1945. [PMID: 31019194 PMCID: PMC6482144 DOI: 10.1038/s41467-019-09916-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- D Merino
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia. .,Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, 3084, Australia. .,School of Cancer Medicine, La Trobe University, Bundoora, VIC, 3086, Australia.
| | - T S Weber
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Molecular Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - A Serrano
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, 3084, Australia
| | - F Vaillant
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - K Liu
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - B Pal
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - L Di Stefano
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - J Schreuder
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Molecular Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - D Lin
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Molecular Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Y Chen
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - M L Asselin-Labat
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - T N Schumacher
- Division of Molecular Oncology & Immunology, Netherlands Cancer Institute, Amsterdam, 1066 CX, The Netherlands
| | - D Cameron
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - G K Smyth
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,School of Mathematics and Statistics, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - A T Papenfuss
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,School of Mathematics and Statistics, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - G J Lindeman
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Oncology, The Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.,Department of Medicine, The University of Melbourne, Melbourne, VIC, 3010, Australia.,Parkville Familial Cancer Centre, The Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Parkville, VIC, 3050, Australia
| | - J E Visvader
- ACRF Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
| | - S H Naik
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia. .,Molecular Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia. .,Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.
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10
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Chopin M, Lun AT, Zhan Y, Schreuder J, Coughlan H, D’Amico A, Mielke LA, Almeida FF, Kueh AJ, Dickins RA, Belz GT, Naik SH, Lew AM, Bouillet P, Herold MJ, Smyth GK, Corcoran LM, Nutt SL. Transcription Factor PU.1 Promotes Conventional Dendritic Cell Identity and Function via Induction of Transcriptional Regulator DC-SCRIPT. Immunity 2019; 50:77-90.e5. [DOI: 10.1016/j.immuni.2018.11.010] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/20/2018] [Accepted: 11/02/2018] [Indexed: 12/13/2022]
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11
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Schreuder J, Metcalf D, Tran J, Naik S. Lineage priming in early hematopoietic progenitors as revealed by in vitro clone splitting experiments. Exp Hematol 2014. [DOI: 10.1016/j.exphem.2014.07.223] [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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12
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Morar D, Schreuder J, Mény M, van Kooten PJS, Tijhaar E, Michel AL, Rutten VPMG. Towards establishing a rhinoceros-specific interferon-gamma (IFN-γ) assay for diagnosis of tuberculosis. Transbound Emerg Dis 2014; 60 Suppl 1:60-6. [PMID: 24171850 DOI: 10.1111/tbed.12132] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Indexed: 11/30/2022]
Abstract
Mycobacterium bovis is the causal agent of bovine tuberculosis (BTB), with a diverse host range, extending from livestock to domestic and captive wild animals as well as free-ranging wildlife species. In South Africa, BTB is endemic in the Kruger National Park (KNP) and the Hluluwe iMfolozi National Park (HiP), where the high prevalence of M. bovis infections in buffalo herds has led to infection of a number of wildlife species. This has raised concerns about the spillover into the rhinoceros population, a species known to be susceptible to both M. bovis and Mycobacterium tuberculosis, jeopardizing breeding and relocation projects that serve to conserve and protect this species. In view of the advantages of the interferon-gamma (IFN-γ) assay in the diagnosis of BTB in a variety of species worldwide, such an assay has been developed for rhinoceroses by Morar and co-workers in 2007. In this study, this assay was optimized using recombinant eukaryotic rhinoceros IFN-γ and the lower detection limit was calculated to be 0.5 ng/ml. Subsequently, assessing the detection of native rhinoceros IFN-γ protein in whole-blood samples revealed stimulation with each of the mitogens: pokeweed (PWM), phytohaemagglutinin (PHA) & phorbol 12-myristate 13-acetate and calcium ionophore (PMA/CaI), though most prominently with the latter two. In addition, samples collected from 52 clinically healthy rhinoceroses, of presumed negative BTB status, from two different areas in South Africa were used to determine the cut-off value for a negative test result. This was calculated to be 0.10 (OD490 nm ) and as determined in this study is a preliminary recommendation based on IFN-γ responses observed in samples from BTB-free rhinoceroses only.
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Affiliation(s)
- D Morar
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
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13
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Angkawanish T, Morar D, van Kooten P, Bontekoning I, Schreuder J, Maas M, Wajjwalku W, Sirimalaisuwan A, Michel A, Tijhaar E, Rutten V. The Elephant Interferon Gamma Assay: A Contribution to Diagnosis of Tuberculosis in Elephants. Transbound Emerg Dis 2013; 60 Suppl 1:53-9. [DOI: 10.1111/tbed.12098] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Indexed: 02/05/2023]
Affiliation(s)
- T. Angkawanish
- National Elephant Institute; Hangchart Lampang Thailand
- Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
| | - D. Morar
- Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
| | - P. van Kooten
- Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
- Podiceps BV; Science Park Utrecht; Utrecht the Netherlands
| | - I. Bontekoning
- Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
- Faculty of Veterinary Medicine; Kasetsart University; Nakhonpathom Thailand
- Faculty of Veterinary Medicine; Chiangmai University; Chiangmai Thailand
| | - J. Schreuder
- Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
- Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
| | - M. Maas
- Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
| | - W. Wajjwalku
- Faculty of Veterinary Medicine; Kasetsart University; Nakhonpathom Thailand
| | - A. Sirimalaisuwan
- Faculty of Veterinary Medicine; Chiangmai University; Chiangmai Thailand
| | - A. Michel
- Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
| | - E. Tijhaar
- Cell Biology and Immunology Group; Wageningen University; Wageningen the Netherlands
| | - V. Rutten
- Department of Infectious Diseases and Immunology; Faculty of Veterinary Medicine; Utrecht University; Utrecht the Netherlands
- Department of Veterinary Tropical Diseases; Faculty of Veterinary Science; University of Pretoria; Pretoria South Africa
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14
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Dykstra B, Olthof S, Schreuder J, Ritsema M, de Haan G. Clonal analysis reveals multiple functional defects of aged murine hematopoietic stem cells. ACTA ACUST UNITED AC 2011; 208:2691-703. [PMID: 22110168 PMCID: PMC3244040 DOI: 10.1084/jem.20111490] [Citation(s) in RCA: 317] [Impact Index Per Article: 24.4] [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] [Indexed: 12/19/2022]
Abstract
As shown using clonal assays, the mouse HSC population undergoes quantitative as well as qualitative changes with age, including lineage differentiation, HSC pool size, marrow-homing efficiency, and self-renewal. Hematopoietic stem cell (HSC) populations change with aging, but the extent to which this is caused by qualitative versus quantitative alterations in HSC subtypes is unclear. Using clonal assays, in this study we show that the aging HSC compartment undergoes both quantitative and qualitative changes. We observed a variable increase of HSC pool size with age, accompanied by the accumulation of predominantly myeloid-biased HSCs that regenerate substantially fewer mature progeny than young myeloid-biased HSCs and exhibit reduced self-renewal activity as measured by long-term secondary transplantation. Old HSCs had a twofold reduction in marrow-homing efficiency and a similar decrease in functional frequency as measured using long-term transplantation assays. Similarly, old HSCs had a twofold reduced seeding efficiency and a significantly delayed proliferative response compared with young HSCs in long-term stromal cell co-cultures but were indistinguishable in suspension cultures. We show that these functional defects are characteristics of most or all old HSCs and are not indicative of a nonfunctional subset of cells that express HSC markers. Furthermore, we demonstrate that cells with functional properties of old HSCs can be generated directly from young HSCs by extended serial transplantation, which is consistent with the possibility that they arise through a process of cellular aging.
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Affiliation(s)
- Brad Dykstra
- Department of Cell Biology, European Research Institute on the Biology of Aging, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, Netherlands.
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15
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Caputo M, Schreuder J, Fino C, Baan J, Alfieri O. Assessment of myocardial performance with ventricular pressure-volume relations: clinical applications in cardiac surgery. Ital Heart J 2000; 1:269-74. [PMID: 10824727] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The assessment of myocardial performance in patients with cardiomyopathy is of vital importance in cardiology and cardiac surgery, especially considering the significant increase in the number of patients treated for congestive heart failure. Left ventricular pressure-volume analysis is a method, which can assess accurately myocardial contractility, separating the systolic and diastolic function at different preload and afterload conditions. This technique can be used for determination of the efficacy of a therapeutic pharmaceutical or surgical intervention, for instance the assessment of ventricular function after coronary revascularization. A few studies using the conductance catheter for the analysis of ventricular pressure-volume relations in the field of cardiac surgery have been published. In our center we started to use this technique to analyze cardiac surgical procedures, like mitral valve reconstruction, aortic valve replacement, myocardial revascularization, left ventricular assist, and surgical left ventricular remodeling. This information will be used to develop a therapeutic strategy, which may optimize surgical indications and improve the peri- and postoperative treatment and the efficacy of that surgical technique. In this short review the possible clinical use in cardiac surgery and the methodology of the pressure-volume loops have been described. Three clinical cases are presented to demonstrate functional information related to the surgical treatment of congestive heart failure patients.
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Affiliation(s)
- M Caputo
- Division of Cardiac Surgery, San Raffaele Hospital IRCCS, Milan, Italy
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16
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Bolotin G, Van der Veen FH, Schreuder J, Lorusso R, Ben David J, Uretzky G. Cardiomyoplasty--the beginning of a new era. Isr J Med Sci 1996; 32:321-6. [PMID: 8641874] [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] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Cardiomyoplasty is a surgical treatment for a well-defined group of patients who suffer from congestive heart failure. The procedure is not a contraindication to perform a future heart transplantation, when indicated. The clinical results up to 7 years after cardiomyoplasty are encouraging, but there is still a gap between the significant functional capacity improvement of the patients after cardiomyoplasty and the moderate hemodynamic change. Experimental data and recent measurements in patients provide new insights in understanding the physiologic effect of cardiomyoplasty.
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Affiliation(s)
- G Bolotin
- Department of Cardiothoracic Surgery, Carmel Medical Center, Haifa, Israel
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17
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Lorusso R, Alfieri O, van der Veen F, Schreuder J. Optimizing cardiomyoplasty results: importance of muscle contraction timing. Ann Thorac Surg 1995; 60:1862-3. [PMID: 8787512 DOI: 10.1016/0003-4975(96)81288-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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18
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Abstract
Although X-ray diffraction measurements imply almost constant filament separation during isometric contraction, such constancy does not hold at the level of the isolated cell; cell cross-section increases substantially during isometric contraction. This expansion could arise from accumulation of water drawn from other fibre regions, or from water drawn into the cell from outside. To distinguish between these hypotheses, we froze single fibres of frog skeletal muscle that were jacketed by a thin layer of water. Frozen fibres were freeze-substituted, sectioned transversely, and examined in the electron microscope. In fibres frozen during contraction, we found large amounts of water just beneath the sarcolemma, less in deeper regions, and almost none in the fibre core. Such gradients were absent or diminished in fibres frozen in the relaxed state. The water was not confined to the myofibril space alone; we found large water spaces between myofibrils, particularly near mitochondria. Accumulation of water between myofibrils and around mitochondria implies that the driving force for water movement probably lies outside the filament lattice, and may therefore be osmotic. The fact that the distribution was nonuniform-highest near the sarcolemma and lowest in the core--implies that the water was likely drawn from the thin jacket surrounding the cell. Thus, the contractile cycle appears to be associated with water entry into and exit from the cell.
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Affiliation(s)
- K Trombitás
- Center for Bioengineering, University of Washington, Seattle 98195
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19
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Abstract
A rare complication is described, in three patients. The tined tip of a ventricular pacemaker electrode was entrapped in the chordae of the tricuspid valve and could not be removed by subtle manipulations in two patients. In one patient, the electrode was removed with partial rupture of the tricuspid valve. The two electrodes remained in the entrapped position and new electrodes were inserted in all three cases. No clinical sequelae were found during follow-up of at least 24 months.
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Affiliation(s)
- J C Res
- Department of Cardiology, Free University Hospital, Amsterdam, The Netherlands
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20
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van Gool J, Schreuder J, Ladiges NC. Inhibitory effect of foetal alpha 2 globulin, an acute phase protein, on carrageenin oedema in the rat. J Pathol 1974; 112:245-62. [PMID: 4134864 DOI: 10.1002/path.1711120409] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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