1
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Yu X, Yuan J, Shi L, Dai S, Yue L, Yan M. Necroptosis in bacterial infections. Front Immunol 2024; 15:1394857. [PMID: 38933265 PMCID: PMC11199740 DOI: 10.3389/fimmu.2024.1394857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Necroptosis, a recently discovered form of cell-programmed death that is distinct from apoptosis, has been confirmed to play a significant role in the pathogenesis of bacterial infections in various animal models. Necroptosis is advantageous to the host, but in some cases, it can be detrimental. To understand the impact of necroptosis on the pathogenesis of bacterial infections, we described the roles and molecular mechanisms of necroptosis caused by different bacterial infections in this review.
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Affiliation(s)
- Xing Yu
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Jin Yuan
- Clinical Laboratory, Puer Hospital of Traditional Chinese Medicine, Puer, China
| | - Linxi Shi
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Shuying Dai
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Lei Yue
- Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China
| | - Min Yan
- Department of Pathogen Biology and Immunology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
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2
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Yamada-Hunter SA, Theruvath J, McIntosh BJ, Freitas KA, Lin F, Radosevich MT, Leruste A, Dhingra S, Martinez-Velez N, Xu P, Huang J, Delaidelli A, Desai MH, Good Z, Polak R, May A, Labanieh L, Bjelajac J, Murty T, Ehlinger Z, Mount CW, Chen Y, Heitzeneder S, Marjon KD, Banuelos A, Khan O, Wasserman SL, Spiegel JY, Fernandez-Pol S, Kuo CJ, Sorensen PH, Monje M, Majzner RG, Weissman IL, Sahaf B, Sotillo E, Cochran JR, Mackall CL. Engineered CD47 protects T cells for enhanced antitumour immunity. Nature 2024; 630:457-465. [PMID: 38750365 PMCID: PMC11168929 DOI: 10.1038/s41586-024-07443-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 04/18/2024] [Indexed: 06/14/2024]
Abstract
Adoptively transferred T cells and agents designed to block the CD47-SIRPα axis are promising cancer therapeutics that activate distinct arms of the immune system1,2. Here we administered anti-CD47 antibodies in combination with adoptively transferred T cells with the goal of enhancing antitumour efficacy but observed abrogated therapeutic benefit due to rapid macrophage-mediated clearance of T cells expressing chimeric antigen receptors (CARs) or engineered T cell receptors. Anti-CD47-antibody-mediated CAR T cell clearance was potent and rapid enough to serve as an effective safety switch. To overcome this challenge, we engineered the CD47 variant CD47(Q31P) (47E), which engages SIRPα and provides a 'don't eat me' signal that is not blocked by anti-CD47 antibodies. TCR or CAR T cells expressing 47E are resistant to clearance by macrophages after treatment with anti-CD47 antibodies, and mediate substantial, sustained macrophage recruitment to the tumour microenvironment. Although many of the recruited macrophages manifested an M2-like profile3, the combined therapy synergistically enhanced antitumour efficacy. Our study identifies macrophages as major regulators of T cell persistence and illustrates the fundamental challenge of combining T-cell-directed therapeutics with those designed to activate macrophages. It delivers a therapeutic approach that is capable of simultaneously harnessing the antitumour effects of T cells and macrophages, offering enhanced potency against solid tumours.
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MESH Headings
- Animals
- Female
- Humans
- Male
- Mice
- Antigens, Differentiation/immunology
- Antigens, Differentiation/metabolism
- CD47 Antigen/genetics
- CD47 Antigen/immunology
- CD47 Antigen/metabolism
- Cell Line, Tumor
- Immunotherapy, Adoptive/methods
- Macrophages/cytology
- Macrophages/immunology
- Neoplasms/immunology
- Neoplasms/metabolism
- Neoplasms/therapy
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/metabolism
- Receptors, Chimeric Antigen/genetics
- Receptors, Chimeric Antigen/immunology
- Receptors, Chimeric Antigen/metabolism
- Receptors, Immunologic/immunology
- Receptors, Immunologic/metabolism
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- T-Lymphocytes/transplantation
- Tumor Microenvironment/immunology
- Antibodies/immunology
- Antibodies/therapeutic use
- Macrophage Activation
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Affiliation(s)
- Sean A Yamada-Hunter
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Johanna Theruvath
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Brianna J McIntosh
- Cancer Biology Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Katherine A Freitas
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Immunology Graduate Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Frank Lin
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Masters in Translational Research and Applied Medicine Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Molly T Radosevich
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Amaury Leruste
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Shaurya Dhingra
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Naiara Martinez-Velez
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Peng Xu
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Jing Huang
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Moksha H Desai
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Zinaida Good
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
- Department of Biomedical Data Science, Stanford University School of Medicine, Stanford, CA, USA
| | - Roel Polak
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Audre May
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Immunology Graduate Program, Stanford University School of Medicine, Stanford, CA, USA
| | - Louai Labanieh
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Jeremy Bjelajac
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA
| | - Tara Murty
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Program in Biophysics, Stanford University, Stanford, CA, USA
- Medical Scientist Training Program, Stanford University, Stanford, CA, USA
| | - Zach Ehlinger
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Christopher W Mount
- Medical Scientist Training Program, Stanford University, Stanford, CA, USA
- Department of Neurology, Stanford University School of Medicine, Stanford, CA, USA
- Neurosciences Program, Stanford University, Stanford, CA, USA
| | - Yiyun Chen
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Sabine Heitzeneder
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Kristopher D Marjon
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Allison Banuelos
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Omair Khan
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA
- Medical Scientist Training Program, Stanford University, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Savannah L Wasserman
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Jay Y Spiegel
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | | | - Calvin J Kuo
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Poul H Sorensen
- British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Michelle Monje
- Medical Scientist Training Program, Stanford University, Stanford, CA, USA
- Department of Neurology, Stanford University School of Medicine, Stanford, CA, USA
- Neurosciences Program, Stanford University, Stanford, CA, USA
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Robbie G Majzner
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Irving L Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Bita Sahaf
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Elena Sotillo
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Jennifer R Cochran
- Cancer Biology Program, Stanford University School of Medicine, Stanford, CA, USA
- Immunology Graduate Program, Stanford University School of Medicine, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Crystal L Mackall
- Center for Cancer Cell Therapy, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA.
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA.
- Cancer Biology Program, Stanford University School of Medicine, Stanford, CA, USA.
- Immunology Graduate Program, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA, USA.
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3
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Wang D, Lin Y, Xu F, Zhang H, Zhu X, Liu Z, Hu Y, Dong G, Sun B, Yu Y, Ma G, Tang Z, Legarda D, Ting A, Liu Y, Hou J, Dong L, Xiong H. SIRPα maintains macrophage homeostasis by interacting with PTK2B kinase in Mycobacterium tuberculosis infection and through autophagy and necroptosis. EBioMedicine 2022; 85:104278. [PMID: 36202053 PMCID: PMC9535427 DOI: 10.1016/j.ebiom.2022.104278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/11/2022] Open
Abstract
Background To determine whether SIRPα can be a diagnostic marker of pulmonary tuberculosis (PTB) and the molecular mechanism of SIRPα regulating macrophages to kill Mycobacterium tuberculosis (MTB). Methods Meta-analysis combined with subsequent qRT-PCR, western-blotting and flow cytometry assay were used to detect SIRPα expression in PTB patients. Cell-based assays were used to explore the regulation of macrophage function by SIRPα. SIRPα−/- and wide type macrophages transplanted C57BL/6J mice were used to determine the function of SIRPα on MTB infection in vivo. Findings SIRPα levels are closely correlated with the treatment outcomes among PTB patients. Cell-based assay demonstrated that MTB significantly induces the expression of SIRPα on macrophages. SIRPα deficiency enhances the killing ability of macrophages against MTB through processes that involve enhanced autophagy and reduced necroptosis of macrophages. Mechanistically, SIRPα forms a direct interaction with PTK2B through its intracellular C-terminal domain, thus inhibiting PTK2B activation in macrophages. Necroptosis inhibition due to SIRPα deficiency requires PTK2B activity. The transfer of SIRPα-deficient bone marrow-derived macrophages (BMDMs) into wild type mice resulted in a drop of bacterial load in the lungs but an enhancement of inflammatory lung damage, and the combination of ulinastatin and SIRPα−/−→WT treatment could decrease the inflammation and maintain the bactericidal capacity. Interpretation Our data define SIRPα a novel biomarker for tuberculosis infection and underlying mechanisms for maintaining macrophage homeostasis. Funding This work was financially supported by the Chinese National Natural Science Foundation project (No.81401635). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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Affiliation(s)
- Di Wang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, the Second Military Medical University, Shanghai, National Center for Liver Cancer, Shanghai, China,Department of Medicine, Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, America,The Eighth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yunkai Lin
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, the Second Military Medical University, Shanghai, National Center for Liver Cancer, Shanghai, China
| | - Feihong Xu
- Department of Medicine, Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, America
| | - Hui Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining Shandong, China
| | - Xiaoyan Zhu
- The Eighth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhen Liu
- The Eighth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yuan Hu
- Department of Medicine, Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, America
| | - Guanjun Dong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining Shandong, China
| | - Bingqi Sun
- Department of Clinical Laboratory, Shenyang Thoracic Hospital, Shenyang Liaoning, China
| | - Yanhong Yu
- Department of Clinical Laboratory, Shenyang Tenth People's Hospital, Shenyang Liaoning, China
| | - Guoren Ma
- Ningxia No. 4 People's Hospital, Yinchuan Ningxia, China
| | | | - Diana Legarda
- Department of Medicine, Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, America
| | - Adrian Ting
- Department of Medicine, Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, America
| | - Yuan Liu
- Program of Immunology and Cell Biology, Department of Biology, Center for Diagnostics & Therapeutics, Georgia State University, Atlanta, America
| | - Jia Hou
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Yinchuan Ningxia, China,Corresponding author at: Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Yinchuan Ningxia, China.
| | - Liwei Dong
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, the Second Military Medical University, Shanghai, National Center for Liver Cancer, Shanghai, China,Corresponding author at: International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, the Second Military Medical University, Shanghai, China.
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining Shandong, China,Corresponding author at: Institute of Immunology and Molecular Medicine, Jining Medical University, Jining Shandong, China.
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4
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Yiu YY, Hansen PS, Torrez Dulgeroff LB, Blacker G, Myers L, Galloway S, Gars E, Colace O, Mansfield P, Hasenkrug KJ, Weissman IL, Tal MC. CD47 Blockade Leads to Chemokine-Dependent Monocyte Infiltration and Loss of B Cells from the Splenic Marginal Zone. THE JOURNAL OF IMMUNOLOGY 2022; 208:1371-1377. [PMID: 35236754 PMCID: PMC9012117 DOI: 10.4049/jimmunol.2100352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 01/11/2022] [Indexed: 11/19/2022]
Abstract
CD47 is an important innate immune checkpoint through its interaction with its inhibitory receptor on macrophages, signal-regulatory protein α (SIRPα). Therapeutic blockade of CD47-SIRPα interactions is a promising immuno-oncology treatment that promotes clearance of cancer cells. However, CD47-SIRPα interactions also maintain homeostatic lymphocyte levels. In this study, we report that the mouse splenic marginal zone B cell population is dependent on intact CD47-SIRPα interactions and blockade of CD47 leads to the loss of these cells. This depletion is accompanied by elevated levels of monocyte-recruiting chemokines CCL2 and CCL7 and infiltration of CCR2+Ly6Chi monocytes into the mouse spleen. In the absence of CCR2 signaling, there is no infiltration and reduced marginal zone B cell depletion. These data suggest that CD47 blockade leads to clearance of splenic marginal zone B cells.
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Affiliation(s)
- Ying Ying Yiu
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
- Immunology Program, Stanford University, Stanford, CA
| | - Paige S Hansen
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Laughing Bear Torrez Dulgeroff
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
| | - Grace Blacker
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
| | - Lara Myers
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT
| | - Sarah Galloway
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
| | - Eric Gars
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Olivia Colace
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
| | - Paul Mansfield
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA
| | - Kim J Hasenkrug
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT
| | - Irving L Weissman
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA;
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA; and
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA
| | - Michal Caspi Tal
- Institute for Stem Cell Biology and Regenerative Medicine and the Ludwig Cancer Center, Stanford University School of Medicine, Stanford, CA;
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
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5
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Kelley SM, Ravichandran KS. Putting the brakes on phagocytosis: "don't-eat-me" signaling in physiology and disease. EMBO Rep 2021; 22:e52564. [PMID: 34041845 DOI: 10.15252/embr.202152564] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/12/2021] [Accepted: 04/29/2021] [Indexed: 12/12/2022] Open
Abstract
Timely removal of dying or pathogenic cells by phagocytes is essential to maintaining host homeostasis. Phagocytes execute the clearance process with high fidelity while sparing healthy neighboring cells, and this process is at least partially regulated by the balance of "eat-me" and "don't-eat-me" signals expressed on the surface of host cells. Upon contact, eat-me signals activate "pro-phagocytic" receptors expressed on the phagocyte membrane and signal to promote phagocytosis. Conversely, don't-eat-me signals engage "anti-phagocytic" receptors to suppress phagocytosis. We review the current knowledge of don't-eat-me signaling in normal physiology and disease contexts where aberrant don't-eat-me signaling contributes to pathology.
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Affiliation(s)
- Shannon M Kelley
- Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA
| | - Kodi S Ravichandran
- Center for Cell Clearance, University of Virginia, Charlottesville, VA, USA.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA, USA.,VIB-UGent Center for Inflammation Research, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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6
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Bennett LF, Liao C, Quickel MD, Yeoh BS, Vijay-Kumar M, Hankey-Giblin P, Prabhu KS, Paulson RF. Inflammation induces stress erythropoiesis through heme-dependent activation of SPI-C. Sci Signal 2019; 12:12/598/eaap7336. [PMID: 31506384 DOI: 10.1126/scisignal.aap7336] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Inflammation alters bone marrow hematopoiesis to favor the production of innate immune effector cells at the expense of lymphoid cells and erythrocytes. Furthermore, proinflammatory cytokines inhibit steady-state erythropoiesis, which leads to the development of anemia in diseases with chronic inflammation. Acute anemia or hypoxic stress induces stress erythropoiesis, which generates a wave of new erythrocytes to maintain erythroid homeostasis until steady-state erythropoiesis can resume. Although hypoxia-dependent signaling is a key component of stress erythropoiesis, we found that inflammation also induced stress erythropoiesis in the absence of hypoxia. Using a mouse model of sterile inflammation, we demonstrated that signaling through Toll-like receptors (TLRs) paradoxically increased the phagocytosis of erythrocytes (erythrophagocytosis) by macrophages in the spleen, which enabled expression of the heme-responsive gene encoding the transcription factor SPI-C. Increased amounts of SPI-C coupled with TLR signaling promoted the expression of Gdf15 and Bmp4, both of which encode ligands that initiate the expansion of stress erythroid progenitors (SEPs) in the spleen. Furthermore, despite their inhibition of steady-state erythropoiesis in the bone marrow, the proinflammatory cytokines TNF-α and IL-1β promoted the expansion and differentiation of SEPs in the spleen. These data suggest that inflammatory signals induce stress erythropoiesis to maintain erythroid homeostasis when inflammation inhibits steady-state erythropoiesis.
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Affiliation(s)
- Laura F Bennett
- Intercollege Graduate Program in Genetics, Penn State University, University Park, PA 16802, USA.,Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA
| | - Chang Liao
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA.,Graduate Program in Pathobiology, Penn State University, University Park, PA 16802, USA.,Center for Molecular Immunology and Infectious Disease, Penn State University, University Park, PA 16802, USA
| | - Michael D Quickel
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA.,Graduate Program in Pathobiology, Penn State University, University Park, PA 16802, USA.,Clinical and Translational Science Institute, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Beng San Yeoh
- Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA 16802, USA
| | - Matam Vijay-Kumar
- Center for Molecular Immunology and Infectious Disease, Penn State University, University Park, PA 16802, USA.,Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA 16802, USA.,Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA
| | - Pamela Hankey-Giblin
- Intercollege Graduate Program in Genetics, Penn State University, University Park, PA 16802, USA.,Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA.,Graduate Program in Pathobiology, Penn State University, University Park, PA 16802, USA.,Center for Molecular Immunology and Infectious Disease, Penn State University, University Park, PA 16802, USA
| | - K Sandeep Prabhu
- Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA.,Graduate Program in Pathobiology, Penn State University, University Park, PA 16802, USA.,Center for Molecular Immunology and Infectious Disease, Penn State University, University Park, PA 16802, USA.,Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA 16802, USA
| | - Robert F Paulson
- Intercollege Graduate Program in Genetics, Penn State University, University Park, PA 16802, USA. .,Department of Veterinary and Biomedical Sciences, Penn State University, University Park, PA 16802, USA.,Center for Molecular Immunology and Infectious Disease, Penn State University, University Park, PA 16802, USA.,Graduate Program in Molecular, Cellular and Integrative Biosciences, Penn State University, University Park, PA 16802, USA
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7
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Matlung HL, Szilagyi K, Barclay NA, van den Berg TK. The CD47-SIRPα signaling axis as an innate immune checkpoint in cancer. Immunol Rev 2017; 276:145-164. [PMID: 28258703 DOI: 10.1111/imr.12527] [Citation(s) in RCA: 368] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Immune checkpoint inhibitors, including those targeting CTLA-4/B7 and the PD-1/PD-L1 inhibitory pathways, are now available for clinical use in cancer patients, with other interesting checkpoint inhibitors being currently in development. Most of these have the purpose to promote adaptive T cell-mediated immunity against cancer. Here, we review another checkpoint acting to potentiate the activity of innate immune cells towards cancer. This innate immune checkpoint is composed of what has become known as the 'don't-eat me' signal CD47, which is a protein broadly expressed on normal cells and often overexpressed on cancer cells, and its counter-receptor, the myeloid inhibitory immunoreceptor SIRPα. Blocking CD47-SIRPα interactions has been shown to promote the destruction of cancer cells by phagocytes, including macrophages and neutrophils. Furthermore, there is growing evidence that targeting of the CD47-SIRPα axis may also promote antigen-presenting cell function and thereby stimulate adaptive T cell-mediated anti-cancer immunity. The development of CD47-SIRPα checkpoint inhibitors and the potential side effects that these may have are discussed. Collectively, this identifies the CD47-SIRPα axis as a promising innate immune checkpoint in cancer, and with data of the first clinical studies with CD47-SIRPα checkpoint inhibitors expected within the coming years, this is an exciting and rapidly developing field.
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Affiliation(s)
- Hanke L Matlung
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Katka Szilagyi
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Neil A Barclay
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Timo K van den Berg
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.,Department of Cell Biology and Immunology, VU medical Center, Amsterdam, The Netherlands
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8
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Salmonella Infection Enhances Erythropoietin Production by the Kidney and Liver, Which Correlates with Elevated Bacterial Burdens. Infect Immun 2016; 84:2833-41. [PMID: 27456828 PMCID: PMC5038055 DOI: 10.1128/iai.00337-16] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/18/2016] [Indexed: 02/06/2023] Open
Abstract
Salmonella infection profoundly affects host erythroid development, but the mechanisms responsible for this effect remain poorly understood. We monitored the impact of Salmonella infection on erythroid development and found that systemic infection induced anemia, splenomegaly, elevated erythropoietin (EPO) levels, and extramedullary erythropoiesis in a process independent of Salmonella pathogenicity island 2 (SPI2) or flagellin. The circulating EPO level was also constitutively higher in mice lacking the expression of signal-regulatory protein α (SIRPα). The expression level of EPO mRNA was elevated in the kidney and liver but not increased in the spleens of infected mice despite the presence of extramedullary erythropoiesis in this tissue. In contrast to data from a previous report, mice lacking EPO receptor (EPOR) expression on nonerythroid cells (EPOR rescued) had bacterial loads similar to those of wild-type mice following Salmonella infection. Indeed, treatment to reduce splenic erythroblasts and mature red blood cells correlated with elevated bacterial burdens, implying that extramedullary erythropoiesis benefits the host. Together, these findings emphasize the profound effect of Salmonella infection on erythroid development and suggest that the modulation of erythroid development has both positive and negative consequences for host immunity.
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Haque A, Best SE, Montes de Oca M, James KR, Ammerdorffer A, Edwards CL, de Labastida Rivera F, Amante FH, Bunn PT, Sheel M, Sebina I, Koyama M, Varelias A, Hertzog PJ, Kalinke U, Gun SY, Rénia L, Ruedl C, MacDonald KPA, Hill GR, Engwerda CR. Type I IFN signaling in CD8- DCs impairs Th1-dependent malaria immunity. J Clin Invest 2014; 124:2483-96. [PMID: 24789914 DOI: 10.1172/jci70698] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Many pathogens, including viruses, bacteria, and protozoan parasites, suppress cellular immune responses through activation of type I IFN signaling. Recent evidence suggests that immune suppression and susceptibility to the malaria parasite, Plasmodium, is mediated by type I IFN; however, it is unclear how type I IFN suppresses immunity to blood-stage Plasmodium parasites. During experimental severe malaria, CD4+ Th cell responses are suppressed, and conventional DC (cDC) function is curtailed through unknown mechanisms. Here, we tested the hypothesis that type I IFN signaling directly impairs cDC function during Plasmodium infection in mice. Using cDC-specific IFNAR1-deficient mice, and mixed BM chimeras, we found that type I IFN signaling directly affects cDC function, limiting the ability of cDCs to prime IFN-γ-producing Th1 cells. Although type I IFN signaling modulated all subsets of splenic cDCs, CD8- cDCs were especially susceptible, exhibiting reduced phagocytic and Th1-promoting properties in response to type I IFNs. Additionally, rapid and systemic IFN-α production in response to Plasmodium infection required type I IFN signaling in cDCs themselves, revealing their contribution to a feed-forward cytokine-signaling loop. Together, these data suggest abrogation of type I IFN signaling in CD8- splenic cDCs as an approach for enhancing Th1 responses against Plasmodium and other type I IFN-inducing pathogens.
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Barclay AN, van den Berg TK. The Interaction Between Signal Regulatory Protein Alpha (SIRPα) and CD47: Structure, Function, and Therapeutic Target. Annu Rev Immunol 2014; 32:25-50. [DOI: 10.1146/annurev-immunol-032713-120142] [Citation(s) in RCA: 448] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Neil Barclay
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK;
| | - Timo K. van den Berg
- Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, 1066 CX Amsterdam, The Netherlands;
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