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La Porta C, Plum T, Palme R, Mack M, Tappe-Theodor A. Repeated social defeat stress differently affects arthritis-associated hypersensitivity in male and female mice. Brain Behav Immun 2024; 119:572-596. [PMID: 38663771 DOI: 10.1016/j.bbi.2024.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024] Open
Abstract
Chronic stress enhances the risk of neuropsychiatric disorders and contributes to the aggravation and chronicity of pain. The development of stress-associated diseases, including pain, is affected by individual vulnerability or resilience to stress, although the mechanisms remain elusive. We used the repeated social defeat stress model promoting susceptible and resilient phenotypes in male and female mice and induced knee mono-arthritis to investigate the impact of stress vulnerability on pain and immune system regulation. We analyzed different pain-related behaviors, measured blood cytokine and immune cell levels, and performed histological analyses at the knee joints and pain/stress-related brain areas. Stress susceptible male and female mice showed prolonged arthritis-associated hypersensitivity. Interestingly, hypersensitivity was exacerbated in male but not female mice. In males, stress promoted transiently increased neutrophils and Ly6Chigh monocytes, lasting longer in susceptible than resilient mice. While resilient male mice displayed persistently increased levels of the anti-inflammatory interleukin (IL)-10, susceptible mice showed increased levels of the pro-inflammatory IL-6 at the early- and IL-12 at the late arthritis stage. Although joint inflammation levels were comparable among groups, macrophage and neutrophil infiltration was higher in the synovium of susceptible mice. Notably, only susceptible male mice, but not females, presented microgliosis and monocyte infiltration in the prefrontal cortex at the late arthritis stage. Blood Ly6Chigh monocyte depletion during the early inflammatory phase abrogated late-stage hypersensitivity and the associated histological alterations in susceptible male mice. Thus, recruitment of blood Ly6Chigh monocytes during the early arthritis phase might be a key factor mediating the persistence of arthritis pain in susceptible male mice. Alternative neuro-immune pathways that remain to be explored might be involved in females.
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Affiliation(s)
- Carmen La Porta
- Institute of Pharmacology, Medical Faculty Heidelberg, Heidelberg University, Im Neuenheimer Feld 366, 69120 Heidelberg, Germany.
| | - Thomas Plum
- Division for Cellular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Rupert Palme
- Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Matthias Mack
- Department of Nephrology, Regensburg University Hospital, Regensburg, Germany
| | - Anke Tappe-Theodor
- Institute of Pharmacology, Medical Faculty Heidelberg, Heidelberg University, Im Neuenheimer Feld 366, 69120 Heidelberg, Germany.
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2
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Matsuda M, Shimora H, Nagatani Y, Nishikawa K, Takamori I, Haguchi T, Kitatani K, Kaminuma O, Nabe T. Involvement of CCR5 on interstitial macrophages in the development of lung fibrosis in severe asthma. Int Immunopharmacol 2024; 135:112331. [PMID: 38795597 DOI: 10.1016/j.intimp.2024.112331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
CCR5 may be involved in the pathogenesis of asthma; however, the underlying mechanisms remain unclear. In comparison with a mild asthma model, subepithelial fibrosis was more severe and CCR5 gene expression in the lungs was significantly higher in our recently developed murine model of steroid-resistant severe asthma. Treatment with the CCR5 antagonist, maraviroc, significantly suppressed the development of subepithelial fibrosis in bronchi, whereas dexamethasone did not. On the other hand, increases in leukocytes related to type 2 inflammation, eosinophils, Th2 cells, and group 2 innate lymphoid cells in the lungs were not affected by the treatment with maraviroc. Increases in neutrophils and total macrophages were also not affected by the CCR5 antagonist. However, increases in transforming growth factor (TGF)-β-producing interstitial macrophages (IMs) were significantly reduced by maraviroc. The present results confirmed increases in CCR5-expressing IMs in the lungs of the severe asthma model. In conclusion, CCR5 on IMs plays significant roles in the development of subepithelial fibrosis in severe asthma through TGF-β production in the lungs.
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Affiliation(s)
- Masaya Matsuda
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Hayato Shimora
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Yukino Nagatani
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Keitaro Nishikawa
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Itomi Takamori
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Tenta Haguchi
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Kazuyuki Kitatani
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan
| | - Osamu Kaminuma
- Department of Disease Model, Research Institute of Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8551, Japan
| | - Takeshi Nabe
- Laboratory Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka 573-0101, Japan.
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3
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Kazer SW, Match CM, Langan EM, Messou MA, LaSalle TJ, O'Leary E, Marbourg J, Naughton K, von Andrian UH, Ordovas-Montanes J. Primary nasal influenza infection rewires tissue-scale memory response dynamics. Immunity 2024:S1074-7613(24)00311-X. [PMID: 38964332 DOI: 10.1016/j.immuni.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 03/14/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024]
Abstract
The nasal mucosa is often the initial site of respiratory viral infection, replication, and transmission. Understanding how infection shapes tissue-scale primary and memory responses is critical for designing mucosal therapeutics and vaccines. We generated a single-cell RNA-sequencing atlas of the murine nasal mucosa, sampling three regions during primary influenza infection and rechallenge. Compositional analysis revealed restricted infection to the respiratory mucosa with stepwise changes in immune and epithelial cell subsets and states. We identified and characterized a rare subset of Krt13+ nasal immune-interacting floor epithelial (KNIIFE) cells, which concurrently increased with tissue-resident memory T (TRM)-like cells. Proportionality analysis, cell-cell communication inference, and microscopy underscored the CXCL16-CXCR6 axis between KNIIFE and TRM cells. Secondary influenza challenge induced accelerated and coordinated myeloid and lymphoid responses without epithelial proliferation. Together, this atlas serves as a reference for viral infection in the upper respiratory tract and highlights the efficacy of local coordinated memory responses.
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Affiliation(s)
- Samuel W Kazer
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Department of Immunology, Harvard Medical School, Boston, MA, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Colette Matysiak Match
- Department of Immunology, Harvard Medical School, Boston, MA, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Erica M Langan
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Marie-Angèle Messou
- Department of Immunology, Harvard Medical School, Boston, MA, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Thomas J LaSalle
- Broad Institute of MIT and Harvard, Cambridge, MA, USA; Program in Health Sciences and Technology, Harvard Medical School and Massachusetts Institute of Technology, Boston, MA, USA
| | - Elise O'Leary
- Department of Immunology, Harvard Medical School, Boston, MA, USA
| | | | | | - Ulrich H von Andrian
- Department of Immunology, Harvard Medical School, Boston, MA, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Jose Ordovas-Montanes
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA; Program in Immunology, Harvard Medical School, Boston, MA 02115, USA; Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA.
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4
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Najibi AJ, Lane RS, Sobral MC, Bovone G, Kang S, Freedman BR, Gutierrez Estupinan J, Elosegui-Artola A, Tringides CM, Dellacherie MO, Williams K, Ijaz H, Müller S, Turley SJ, Mooney DJ. Durable lymph-node expansion is associated with the efficacy of therapeutic vaccination. Nat Biomed Eng 2024:10.1038/s41551-024-01209-3. [PMID: 38710838 DOI: 10.1038/s41551-024-01209-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/30/2024] [Indexed: 05/08/2024]
Abstract
Following immunization, lymph nodes dynamically expand and contract. The mechanical and cellular changes enabling the early-stage expansion of lymph nodes have been characterized, yet the durability of such responses and their implications for adaptive immunity and vaccine efficacy are unknown. Here, by leveraging high-frequency ultrasound imaging of the lymph nodes of mice, we report more potent and persistent lymph-node expansion for animals immunized with a mesoporous silica vaccine incorporating a model antigen than for animals given bolus immunization or standard vaccine formulations such as alum, and that durable and robust lymph-node expansion was associated with vaccine efficacy and adaptive immunity for 100 days post-vaccination in a mouse model of melanoma. Immunization altered the mechanical and extracellular-matrix properties of the lymph nodes, drove antigen-dependent proliferation of immune and stromal cells, and altered the transcriptional features of dendritic cells and inflammatory monocytes. Strategies that robustly maintain lymph-node expansion may result in enhanced vaccination outcomes.
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Affiliation(s)
- Alexander J Najibi
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Ryan S Lane
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - Miguel C Sobral
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Giovanni Bovone
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Shawn Kang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Joel Gutierrez Estupinan
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Alberto Elosegui-Artola
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Institute for Bioengineering of Catalonia, Barcelona, Spain
| | - Christina M Tringides
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Harvard Program in Biophysics, Harvard University, Cambridge, MA, USA
| | - Maxence O Dellacherie
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Katherine Williams
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - Hamza Ijaz
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Sören Müller
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - Shannon J Turley
- Department of Cancer Immunology, Genentech, Inc., South San Francisco, CA, USA
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.
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5
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Hou Y, Yang K, Wang L, Wang J, Huang X, Piffko A, Luo SZ, Yu X, Rao E, Martinez C, Bugno J, Mack M, Vokes EE, Pitroda SP, Chmura SJ, Weichselbaum RR, Liang HL. Radiotherapy Enhances Metastasis Through Immune Suppression by Inducing PD-L1 and MDSC in Distal Sites. Clin Cancer Res 2024; 30:1945-1958. [PMID: 38427437 PMCID: PMC11062826 DOI: 10.1158/1078-0432.ccr-23-3206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/22/2024] [Accepted: 02/27/2024] [Indexed: 03/03/2024]
Abstract
PURPOSE Radiotherapy (RT) is a widely employed anticancer treatment. Emerging evidence suggests that RT can elicit both tumor-inhibiting and tumor-promoting immune effects. The purpose of this study is to investigate immune suppressive factors of radiotherapy. EXPERIMENTAL DESIGN We used a heterologous two-tumor model in which adaptive concomitant immunity was eliminated. RESULTS Through analysis of PD-L1 expression and myeloid-derived suppressor cells (MDSC) frequencies using patient peripheral blood mononuclear cells and murine two-tumor and metastasis models, we report that local irradiation can induce a systemic increase in MDSC, as well as PD-L1 expression on dendritic cells and myeloid cells, and thereby increase the potential for metastatic dissemination in distal, nonirradiated tissue. In a mouse model using two distinct tumors, we found that PD-L1 induction by ionizing radiation was dependent on elevated chemokine CXCL10 signaling. Inhibiting PD-L1 or MDSC can potentially abrogate RT-induced metastasis and improve clinical outcomes for patients receiving RT. CONCLUSIONS Blockade of PD-L1/CXCL10 axis or MDSC infiltration during irradiation can enhance abscopal tumor control and reduce metastasis.
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Affiliation(s)
- Yuzhu Hou
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University; Xi’an, ShaanXi 710061, China
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Kaiting Yang
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Liangliang Wang
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Jiaai Wang
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Xiaona Huang
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Andras Piffko
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Sean Z. Luo
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
- Current address: Biomedical Engineering program, Northwestern University; Evanston, IL 60201, USA
| | - Xinshuang Yu
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
- Current address: Department of Oncology, First Affiliated Hospital of Shandong, First Medical University and Shandong Provincial Qianfoshan Hospital; Jinan, Shandong 250014, China
| | - Enyu Rao
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
- Current address: Cancer Institute, Xuzhou Medical University; Xuzhou, Jiangsu 221004, China
| | - Carlos Martinez
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
- Current address: University of Illinois at Chicago, Chicago, IL, 60607 USA
| | - Jason Bugno
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
- The Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL 600637, USA
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, 93042 Regensburg, Germany
| | - Everett E. Vokes
- Department of Medicine, University of Chicago, Chicago, IL, 60637 USA
| | - Sean P. Pitroda
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Steven J. Chmura
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
| | - Ralph R. Weichselbaum
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
| | - Hua Laura Liang
- Department of Radiation and Cellular Oncology, University of Chicago; Chicago, IL 60637 USA
- Ludwig Center for Metastasis Research, University of Chicago; Chicago, IL 60637 USA
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Haist KC, Gibbings SL, Jacobelli J, Mould KJ, Henson PM, Bratton DL. A LTB 4/CD11b self-amplifying loop drives pyogranuloma formation in chronic granulomatous disease. iScience 2024; 27:109589. [PMID: 38623335 PMCID: PMC11016758 DOI: 10.1016/j.isci.2024.109589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/23/2024] [Accepted: 03/25/2024] [Indexed: 04/17/2024] Open
Abstract
Sterile pyogranulomas and heightened cytokine production are hyperinflammatory hallmarks of Chronic Granulomatous Disease (CGD). Using peritoneal cells of zymosan-treated CGD (gp91phox-/-) versus wild-type (WT) mice, an ex vivo system of pyogranuloma formation was developed to determine factors involved in and consequences of recruitment of neutrophils and monocyte-derived macrophages (MoMacs). Whereas WT cells failed to aggregate, CGD cells formed aggregates containing neutrophils initially, and MoMacs recruited secondarily. LTB4 was key, as antagonizing BLT1 blocked neutrophil aggregation, but acted only indirectly on MoMac recruitment. LTB4 upregulated CD11b expression on CGD neutrophils, and the absence/blockade of CD11b inhibited LTB4 production and cell aggregation. Neutrophil-dependent MoMac recruitment was independent of MoMac Nox2 status, BLT1, CCR1, CCR2, CCR5, CXCR2, and CXCR6. As proof of concept, CD11b-deficient CGD mice developed disrupted pyogranulomas with poorly organized neutrophils and diminished recruitment of MoMacs. Importantly, the disruption of cell aggregation and pyogranuloma formation markedly reduced proinflammatory cytokine production.
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Affiliation(s)
- Kelsey C. Haist
- National Jewish Health, Department of Pediatrics, Denver, CO 80206, USA
| | | | - Jordan Jacobelli
- University of Colorado, Anschutz Medical Campus, Department of Immunology and Microbiology, Barbara Davis Research Center, Aurora, CO 80045, USA
| | - Kara J. Mould
- National Jewish Health, Department of Medicine, Denver, CO 80206, USA
- University of Colorado, Anschutz Medical Campus, Department of Pulmonary and Critical Care Medicine, Aurora, CO 80045, USA
| | - Peter M. Henson
- National Jewish Health, Department of Pediatrics, Denver, CO 80206, USA
- University of Colorado, Anschutz Medical Campus, Department of Immunology and Microbiology, Barbara Davis Research Center, Aurora, CO 80045, USA
- National Jewish Health, Department of Medicine, Denver, CO 80206, USA
- University of Colorado, Anschutz Medical Campus, Department of Pulmonary and Critical Care Medicine, Aurora, CO 80045, USA
| | - Donna L. Bratton
- National Jewish Health, Department of Pediatrics, Denver, CO 80206, USA
- University of Colorado, Anschutz Medical Campus, Department of Pediatrics, Aurora, CO 80045, USA
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7
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Kazer SW, Match CM, Langan EM, Messou MA, LaSalle TJ, O’Leary E, Marbourg J, Naughton K, von Andrian UH, Ordovas-Montanes J. Primary nasal viral infection rewires the tissue-scale memory response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.05.11.539887. [PMID: 38562902 PMCID: PMC10983857 DOI: 10.1101/2023.05.11.539887] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The nasal mucosa is frequently the initial site of respiratory viral infection, replication, and transmission. Recent work has started to clarify the independent responses of epithelial, myeloid, and lymphoid cells to viral infection in the nasal mucosa, but their spatiotemporal coordination and relative contributions remain unclear. Furthermore, understanding whether and how primary infection shapes tissue-scale memory responses to secondary challenge is critical for the rational design of nasal-targeting therapeutics and vaccines. Here, we generated a single-cell RNA-sequencing (scRNA-seq) atlas of the murine nasal mucosa sampling three distinct regions before and during primary and secondary influenza infection. Primary infection was largely restricted to respiratory mucosa and induced stepwise changes in cell type, subset, and state composition over time. Type I Interferon (IFN)-responsive neutrophils appeared 2 days post infection (dpi) and preceded transient IFN-responsive/cycling epithelial cell responses 5 dpi, which coincided with broader antiviral monocyte and NK cell accumulation. By 8 dpi, monocyte-derived macrophages (MDMs) expressing Cxcl9 and Cxcl16 arose alongside effector cytotoxic CD8 and Ifng-expressing CD4 T cells. Following viral clearance (14 dpi), rare, previously undescribed Krt13+ nasal immune-interacting floor epithelial (KNIIFE) cells expressing multiple genes with immune communication potential increased concurrently with tissue-resident memory T (TRM)-like cells and early IgG+/IgA+ plasmablasts. Proportionality analysis coupled with cell-cell communication inference, alongside validation by in situ microscopy, underscored the CXCL16-CXCR6 signaling axis between MDMs and effector CD8 T cells 8dpi and KNIIFE cells and TRM cells 14 dpi. Secondary influenza challenge with a homologous or heterologous strain administered 60 dpi induced an accelerated and coordinated myeloid and lymphoid response without epithelial proliferation, illustrating how tissue-scale memory to natural infection engages both myeloid and lymphoid cells to reduce epithelial regenerative burden. Together, this atlas serves as a reference for viral infection in the upper respiratory tract and highlights the efficacy of local coordinated memory responses upon rechallenge.
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Affiliation(s)
- Samuel W. Kazer
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children’s Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Colette Matysiak Match
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Erica M. Langan
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children’s Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Marie-Angèle Messou
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Thomas J. LaSalle
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Program in Health Sciences and Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA, USA
| | - Elise O’Leary
- Department of Immunology, Harvard Medical School, Boston, MA, USA
| | | | | | - Ulrich H. von Andrian
- Department of Immunology, Harvard Medical School, Boston, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Jose Ordovas-Montanes
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children’s Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Program in Immunology, Harvard Medical School, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
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8
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Komaru Y, Ning L, Lama C, Suresh A, Kefaloyianni E, Miller MJ, Herrlich A. Sterile kidney tissue injury induces neutrophil swarming in lung alveolar capillaries. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.27.582396. [PMID: 38464306 PMCID: PMC10925262 DOI: 10.1101/2024.02.27.582396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Sterile tissue injury, such as by acute kidney injury, is common in the clinic and frequently associated with respiratory compromise and hypoxemia. We previously described signaling components released by the injured kidney that drive a remote inflammatory response in the lung. How this caused the resultant hypoxemia remained unclear. Here, we report that sterile kidney tissue injury induces rapid intravascular "neutrophil train" formation in lung capillaries, a novel form of neutrophil swarming. Rapid swarming is enhanced by decreased deformability of circulating neutrophils that impedes their lung capillary passage. Classical lung monocytes are required for neutrophil train formation and release CXCL2 to attract and retain stiffened neutrophils in lung capillaries which reduces capillary perfusion. We thus discovered a novel feature of kidney-lung crosstalk after sterile kidney tissue injury, capillary perfusion deficits that lead to reduced oxygenation despite proper alveolar function and ventilation, unlike in infectious inflammatory lung processes, such as bacterial pneumonia.
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9
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Naratadam GT, Mecklenburg J, Shein SA, Zou Y, Lai Z, Tumanov AV, Price TJ, Akopian AN. Degenerative and regenerative peripheral processes are associated with persistent painful chemotherapy-induced neuropathies in males and females. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.25.577218. [PMID: 38328207 PMCID: PMC10849728 DOI: 10.1101/2024.01.25.577218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
This study aimed to investigate the time course of gene expression changes during the progression of persistent painful neuropathy caused by paclitaxel (PTX) in male and female mouse hind paws and dorsal root ganglia (DRG). Bulk RNA-seq was used to investigate the gene expression changes in the paw and DRG collected at 1, 16, and 31 days post-PTX. At these time points, differentially expressed DEGs were predominantly related to reduction or increase in epithelial, skin, bone, and muscle development and to angiogenesis, myelination, axonogenesis, and neurogenesis. These processes were accompanied by regulation of DEGs related to cytoskeleton, extracellular matrix organization and cellular energy production. This gene plasticity during persistent painful neuropathy progression likely represents biological processes linked to tissue regeneration and degeneration. Unlike regeneration/degeneration, gene plasticity related to immune processes was minimal at 1-31 days post-PTX. It was also noted that despite similarities in biological processes and pain chronicity in males and females, specific DEGs showed dramatic sex-dependency. The main conclusions of this study are that gene expression plasticity in paws and DRG during PTX neuropathy progression relates to tissue regeneration and degeneration, minimally affects the immune system processes, and is heavily sex-dependent at the individual gene level.
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10
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Ma P, Liu J, Qin J, Lai L, Heo GS, Luehmann H, Sultan D, Bredemeyer A, Bajapa G, Feng G, Jimenez J, He R, Parks A, Amrute J, Villanueva A, Liu Y, Lin CY, Mack M, Amancherla K, Moslehi J, Lavine KJ. Expansion of Pathogenic Cardiac Macrophages in Immune Checkpoint Inhibitor Myocarditis. Circulation 2024; 149:48-66. [PMID: 37746718 DOI: 10.1161/circulationaha.122.062551] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 08/28/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs), antibodies targeting PD-1 (programmed cell death protein 1)/PD-L1 (programmed death-ligand 1) or CTLA4 (cytotoxic T-lymphocyte-associated protein 4), have revolutionized cancer management but are associated with devastating immune-related adverse events including myocarditis. The main risk factor for ICI myocarditis is the use of combination PD-1 and CTLA4 inhibition. ICI myocarditis is often fulminant and is pathologically characterized by myocardial infiltration of T lymphocytes and macrophages. Although much has been learned about the role of T-cells in ICI myocarditis, little is understood about the identity, transcriptional diversity, and functions of infiltrating macrophages. METHODS We used an established murine ICI myocarditis model (Ctla4+/-Pdcd1-/- mice) to explore the cardiac immune landscape using single-cell RNA-sequencing, immunostaining, flow cytometry, in situ RNA hybridization, molecular imaging, and antibody neutralization studies. RESULTS We observed marked increases in CCR2 (C-C chemokine receptor type 2)+ monocyte-derived macrophages and CD8+ T-cells in this model. The macrophage compartment was heterogeneous and displayed marked enrichment in an inflammatory CCR2+ subpopulation highly expressing Cxcl9 (chemokine [C-X-C motif] ligand 9), Cxcl10 (chemokine [C-X-C motif] ligand 10), Gbp2b (interferon-induced guanylate-binding protein 2b), and Fcgr4 (Fc receptor, IgG, low affinity IV) that originated from CCR2+ monocytes. It is important that a similar macrophage population expressing CXCL9, CXCL10, and CD16α (human homologue of mouse FcgR4) was expanded in patients with ICI myocarditis. In silico prediction of cell-cell communication suggested interactions between T-cells and Cxcl9+Cxcl10+ macrophages via IFN-γ (interferon gamma) and CXCR3 (CXC chemokine receptor 3) signaling pathways. Depleting CD8+ T-cells or macrophages and blockade of IFN-γ signaling blunted the expansion of Cxcl9+Cxcl10+ macrophages in the heart and attenuated myocarditis, suggesting that this interaction was necessary for disease pathogenesis. CONCLUSIONS These data demonstrate that ICI myocarditis is associated with the expansion of a specific population of IFN-γ-induced inflammatory macrophages and suggest the possibility that IFN-γ blockade may be considered as a treatment option for this devastating condition.
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Affiliation(s)
- Pan Ma
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Jing Liu
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Juan Qin
- Division of Cardiology, Department of Medicine, University of California San Francisco (J.Q., J.M.)
| | - Lulu Lai
- Department of Pathology and Immunology (L.L., A.V., C.-Y.L., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Gyu Seong Heo
- Mallinckrodt Institute of Radiology (G.S.H., H.L., D.S., Y.L.), Washington University School of Medicine, St Louis, MO
| | - Hannah Luehmann
- Department of Pathology and Immunology (L.L., A.V., C.-Y.L., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Deborah Sultan
- Mallinckrodt Institute of Radiology (G.S.H., H.L., D.S., Y.L.), Washington University School of Medicine, St Louis, MO
| | - Andrea Bredemeyer
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Geetika Bajapa
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Guoshuai Feng
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Jesus Jimenez
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Ruijun He
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Antanisha Parks
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Junedh Amrute
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Ana Villanueva
- Department of Pathology and Immunology (L.L., A.V., C.-Y.L., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Yongjian Liu
- Mallinckrodt Institute of Radiology (G.S.H., H.L., D.S., Y.L.), Washington University School of Medicine, St Louis, MO
| | - Chieh-Yu Lin
- Department of Pathology and Immunology (L.L., A.V., C.-Y.L., K.J.L.), Washington University School of Medicine, St Louis, MO
| | - Matthias Mack
- Department of Internal Medicine II - Nephrology, Universitatsklinikum Regensburg Klinik und Poliklinik Innere Medizin II, Regensburg, Germany (M.M.)
| | - Kaushik Amancherla
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN (K.A.)
| | - Javid Moslehi
- Division of Cardiology, Department of Medicine, University of California San Francisco (J.Q., J.M.)
| | - Kory J Lavine
- Cardiovascular Division, Department of Medicine (P.M., J.L., A.B., G.B., G.F., J.J., R.H., A.P., J.A., K.J.L.), Washington University School of Medicine, St Louis, MO
- Department of Pathology and Immunology (L.L., A.V., C.-Y.L., K.J.L.), Washington University School of Medicine, St Louis, MO
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11
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Garg A, Lim JK. A Pocket Guide to CCR5-Neurotropic Flavivirus Edition. Viruses 2023; 16:28. [PMID: 38257729 PMCID: PMC10820758 DOI: 10.3390/v16010028] [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: 11/17/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
CCR5 is among the most studied chemokine receptors due to its profound significance in human health and disease. The notion that CCR5 is a functionally redundant receptor was challenged through the demonstration of its unique protective role in the context of West Nile virus in both mice and humans. In the nearly two decades since this initial discovery, numerous studies have investigated the role of CCR5 in the context of other medically important neurotropic flaviviruses, most of which appear to support a broad neuroprotective role for this receptor, although how CCR5 exerts its protective effect has been remarkably varied. In this review, we summarize the mechanisms by which CCR5 controls neurotropic flaviviruses, as well as results from human studies evaluating a genetic link to CCR5, and propose unexplored areas of research that are needed to unveil even more exciting roles for this important receptor.
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Affiliation(s)
| | - Jean K. Lim
- Department of Microbiology, The Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1124, New York, NY 10029, USA;
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12
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Osorio JC, Smith P, Knorr DA, Ravetch JV. The antitumor activities of anti-CD47 antibodies require Fc-FcγR interactions. Cancer Cell 2023; 41:2051-2065.e6. [PMID: 37977147 PMCID: PMC10842210 DOI: 10.1016/j.ccell.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/01/2023] [Accepted: 10/26/2023] [Indexed: 11/19/2023]
Abstract
While anti-CD47 antibodies hold promise for cancer immunotherapy, early-phase clinical trials have shown limited clinical benefit, suggesting that CD47 blockade alone might be insufficient for effective tumor control. Here, we investigate the contributions of the Fc domain of anti-CD47 antibodies required for optimal in vivo antitumor activity across multiple species-matched models, providing insights into the mechanisms behind the efficacy of this emerging class of therapeutic antibodies. Using a mouse model humanized for CD47, SIRPα, and FcγRs, we demonstrate that local administration of Fc-engineered anti-CD47 antibodies with enhanced binding to activating FcγRs promotes tumor infiltration of macrophages and antigen-specific T cells, while depleting regulatory T cells. These effects result in improved long-term systemic antitumor immunity and minimal on-target off-tumor toxicity. Our results highlight the importance of Fc optimization in the development of effective anti-CD47 therapies and provide an attractive strategy to enhance the activity of this promising immunotherapy.
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Affiliation(s)
- Juan C Osorio
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Laboratory of Molecular Genetics and Immunology, Rockefeller University, New York, NY 10065, USA.
| | - Patrick Smith
- Laboratory of Molecular Genetics and Immunology, Rockefeller University, New York, NY 10065, USA
| | - David A Knorr
- Laboratory of Molecular Genetics and Immunology, Rockefeller University, New York, NY 10065, USA; Regeneron, Inc., Tarrytown, NY, USA
| | - Jeffrey V Ravetch
- Laboratory of Molecular Genetics and Immunology, Rockefeller University, New York, NY 10065, USA.
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13
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Larson-Casey JL, Saleem K, Surolia R, Pandey J, Mack M, Antony VB, Bodduluri S, Bhatt SP, Duncan SR, Carter AB. Myeloid Heterogeneity Mediates Acute Exacerbations of Pulmonary Fibrosis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1714-1724. [PMID: 37782053 PMCID: PMC10843506 DOI: 10.4049/jimmunol.2300053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 09/15/2023] [Indexed: 10/03/2023]
Abstract
Epidemiological evidence indicates that exposure to particulate matter is linked to the development of idiopathic pulmonary fibrosis (IPF) and increases the incidence of acute exacerbations of IPF. In addition to accelerating the rate of lung function decline, exposure to fine particulate matter (particulate matter smaller than 2.5 μm [PM2.5]) is a risk factor for increased mortality in subjects with IPF. In this article, we show that exposure to PM2.5 mediates monocyte recruitment and fibrotic progression in mice with established fibrosis. In mice with established fibrosis, bronchoalveolar lavage cells showed monocyte/macrophage heterogeneity after exposure to PM2.5. These cells had a significant inflammatory and anti-inflammatory signature. The mixed heterogeneity of cells contributed to the proinflammatory and anti-inflammatory response. Although monocyte-derived macrophages were recruited to the lung in bleomycin-injured mice treated with PM2.5, recruitment of monocytes expressing Ly6Chi to the lung promoted progression of fibrosis, reduced lung aeration on computed tomography, and impacted lung compliance. Ly6Chi monocytes isolated from PM2.5-exposed fibrotic mice showed enhanced expression of proinflammatory markers compared with fibrotic mice exposed to vehicle. Moreover, IPF bronchoalveolar lavage cells treated ex vivo with PM2.5 showed an exaggerated inflammatory response. Targeting Ly6Chi monocyte recruitment inhibited fibrotic progression in mice. Moreover, the adoptive transfer of Ly6Chi monocytes exacerbated established fibrosis. These observations suggest that enhanced recruitment of Ly6Chi monocytes with a proinflammatory phenotype mediates acute exacerbations of pulmonary fibrosis, and targeting these cells may provide a potential novel therapeutic target to protect against acute exacerbations of IPF.
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Affiliation(s)
- Jennifer L. Larson-Casey
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Komal Saleem
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ranu Surolia
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jyotsana Pandey
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Matthias Mack
- Department of Nephrology, University of Regensburg, Regensburg, Germany
| | - Veena B. Antony
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Sandeep Bodduluri
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
- UAB Lung Imaging Lab, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Surya P. Bhatt
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
- UAB Lung Imaging Lab, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Steven R. Duncan
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - A. Brent Carter
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
- Birmingham Veterans Administration Medical Center, Birmingham. AL, USA
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14
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Wong LYR, Odle A, Luhmann E, Wu DC, Wang Y, Teo QW, Ptak C, Sariol A, Lowery S, Mack M, Meyerholz DK, Wu NC, Radoshevich L, Perlman S. Contrasting roles of MERS-CoV and SARS-CoV-2 internal proteins in pathogenesis in mice. mBio 2023; 14:e0247623. [PMID: 37882568 PMCID: PMC10746224 DOI: 10.1128/mbio.02476-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 10/27/2023] Open
Abstract
Betacoronaviruses encode an internal (I) gene via an alternative reading frame within the nucleocapsid gene, called ORF8b for Middle-East respiratory syndrome coronavirus (MERS-CoV) and ORF9b for severe acute respiratory syndrome coronavirus (SARS-CoV) and SARS-CoV-2. Previous reports suggested that proteins 8b and 9b are involved in evading multiple innate immune signaling pathways. However, their roles in mediating pathogenesis in infected animals have not been determined. In this study, we abrogated the expression of protein 8b in MERS-CoV and protein 9b in SARS-CoV-2. Using mouse models of MERS-CoV and SARS-CoV-2 infection, we found that MERS-CoV lacking protein 8b expression was more virulent, while SARS-CoV-2 lacking protein 9b expression was attenuated compared with the respective wild-type viruses. Upon further analysis, we detected increased levels of type I interferon and enhanced infiltration of immune cells to the lungs of mice infected with MERS-CoV lacking protein 8b expression. These data suggest that the I protein of MERS-CoV plays a role in limiting pathogenesis while that of SARS-CoV-2 enhances disease severity. IMPORTANCE The function of betacoronavirus internal protein has been relatively understudied. The earliest report on the internal protein of mouse hepatitis virus suggested that the internal protein is a structural protein without significant functions in virus replication and virulence. However, the internal proteins of severe acute respiratory syndrome coronavirus (SARS-CoV), Middle-East respiratory syndrome coronavirus, and SARS-CoV-2 have been shown to evade immune responses. Despite the reported functions of the internal protein in these highly pathogenic human coronaviruses, its role in mediating pathogenesis in experimentally infected animals has not been characterized. Our data indicated that despite the similar genomic location and expression strategy of these internal proteins, their effects on virulence are vastly different and virus specific, highlighting the complexity between host-virus interaction and disease outcome.
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Affiliation(s)
- Lok-Yin Roy Wong
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Abby Odle
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Emma Luhmann
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Douglas C. Wu
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Yiquan Wang
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Qi Wen Teo
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Celeste Ptak
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Alan Sariol
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Shea Lowery
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Matthias Mack
- Department of Internal Medicine, University Hospital Regensburg, Regensburg, Germany
| | | | - Nicholas C. Wu
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Lilliana Radoshevich
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Stanley Perlman
- Department of Microbiology, University of Iowa, Iowa City, Iowa, USA
- Department of Immunology, University of Iowa, Iowa City, Iowa, USA
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
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15
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Bartneck J, Hartmann AK, Stein L, Arnold-Schild D, Klein M, Stassen M, Marini F, Pielenhofer J, Meiser SL, Langguth P, Mack M, Muth S, Probst HC, Schild H, Radsak MP. Tumor-infiltrating CCR2 + inflammatory monocytes counteract specific immunotherapy. Front Immunol 2023; 14:1267866. [PMID: 37849753 PMCID: PMC10577317 DOI: 10.3389/fimmu.2023.1267866] [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: 07/27/2023] [Accepted: 09/13/2023] [Indexed: 10/19/2023] Open
Abstract
Tumor development and progression is shaped by the tumor microenvironment (TME), a heterogeneous assembly of infiltrating and resident host cells, their secreted mediators and intercellular matrix. In this context, tumors are infiltrated by various immune cells with either pro-tumoral or anti-tumoral functions. Recently, we published our non-invasive immunization platform DIVA suitable as a therapeutic vaccination method, further optimized by repeated application (DIVA2). In our present work, we revealed the therapeutic effect of DIVA2 in an MC38 tumor model and specifically focused on the mechanisms induced in the TME after immunization. DIVA2 resulted in transient tumor control followed by an immune evasion phase within three weeks after the initial tumor inoculation. High-dimensional flow cytometry analysis and single-cell mRNA-sequencing of tumor-infiltrating leukocytes revealed cytotoxic CD8+ T cells as key players in the immune control phase. In the immune evasion phase, inflammatory CCR2+ PDL-1+ monocytes with immunosuppressive properties were recruited into the tumor leading to suppression of DIVA2-induced tumor-reactive T cells. Depletion of CCR2+ cells with specific antibodies resulted in prolonged survival revealing CCR2+ monocytes as important for tumor immune escape in the TME. In summary, the present work provides a platform for generating a strong antigen-specific primary and memory T cell immune response using the optimized transcutaneous immunization method DIVA2. This enables protection against tumors by therapeutic immune control of solid tumors and highlights the immunosuppressive influence of tumor infiltrating CCR2+ monocytes that need to be inactivated in addition for successful cancer immunotherapy.
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Affiliation(s)
- Joschka Bartneck
- III Department of Medicine - Hematology, Oncology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Ann-Kathrin Hartmann
- III Department of Medicine - Hematology, Oncology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Lara Stein
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Danielle Arnold-Schild
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Matthias Klein
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Michael Stassen
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Federico Marini
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Jonas Pielenhofer
- Institute of Pharmaceutical and Biomedical Sciences of the Johannes Gutenberg-University, Biopharmaceutics and Pharmaceutical Technology, Mainz, Germany
| | - Sophie Luise Meiser
- Institute of Pharmaceutical and Biomedical Sciences of the Johannes Gutenberg-University, Biopharmaceutics and Pharmaceutical Technology, Mainz, Germany
| | - Peter Langguth
- Institute of Pharmaceutical and Biomedical Sciences of the Johannes Gutenberg-University, Biopharmaceutics and Pharmaceutical Technology, Mainz, Germany
| | - Matthias Mack
- University Hospital Regensburg, Department Nephrology, Regensburg, Germany
| | - Sabine Muth
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Hans-Christian Probst
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Hansjörg Schild
- Institute of Immunology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Markus Philipp Radsak
- III Department of Medicine - Hematology, Oncology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
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16
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Dhariwala MO, DeRogatis AM, Okoro JN, Weckel A, Tran VM, Habrylo I, Ojewumi OT, Tammen AE, Leech JM, Merana GR, Carale RO, Barrere-Cain R, Hiam-Galvez KJ, Spitzer MH, Scharschmidt TC. Commensal myeloid crosstalk in neonatal skin regulates long-term cutaneous type 17 inflammation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.29.560039. [PMID: 37873143 PMCID: PMC10592812 DOI: 10.1101/2023.09.29.560039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Early life microbe-immune interactions at barrier surfaces have lasting impacts on the trajectory towards health versus disease. Monocytes, macrophages and dendritic cells are primary sentinels in barrier tissues, yet the salient contributions of commensal-myeloid crosstalk during tissue development remain poorly understood. Here, we identify that commensal microbes facilitate accumulation of a population of monocytes in neonatal skin. Transient postnatal depletion of these monocytes resulted in heightened IL-17A production by skin T cells, which was particularly sustained among CD4+ T cells into adulthood and sufficient to exacerbate inflammatory skin pathologies. Neonatal skin monocytes were enriched in expression of negative regulators of the IL-1 pathway. Functional in vivo experiments confirmed a key role for excessive IL-1R1 signaling in T cells as contributing to the dysregulated type 17 response in neonatal monocyte-depleted mice. Thus, a commensal-driven wave of monocytes into neonatal skin critically facilitates long-term immune homeostasis in this prominent barrier tissue.
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Affiliation(s)
- Miqdad O. Dhariwala
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - Andrea M. DeRogatis
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - Joy N. Okoro
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
- Biomedical Sciences Program, University of California San Francisco; San Francisco, CA USA
| | - Antonin Weckel
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - Victoria M. Tran
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
- Biomedical Sciences Program, University of California San Francisco; San Francisco, CA USA
| | - Irek Habrylo
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
- Biomedical Sciences Program, University of California San Francisco; San Francisco, CA USA
| | | | - Allison E. Tammen
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - John M. Leech
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - Geil R. Merana
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
- Biomedical Sciences Program, University of California San Francisco; San Francisco, CA USA
| | - Ricardo O. Carale
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - Rio Barrere-Cain
- Department of Dermatology, University of California San Francisco; San Francisco, CA USA
| | - Kamir J. Hiam-Galvez
- Biomedical Sciences Program, University of California San Francisco; San Francisco, CA USA
- Department of Otolaryngology-Head and Neck Surgery, Department of Microbiology and Immunology, Parker Institute for Cancer Immunotherapy, University of California San Francisco; San Francisco, CA USA
| | - Matthew H. Spitzer
- Department of Otolaryngology-Head and Neck Surgery, Department of Microbiology and Immunology, Parker Institute for Cancer Immunotherapy, University of California San Francisco; San Francisco, CA USA
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17
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Perumal N, White B, Sanchez-Valdez F, Tarleton RL. cGAS-STING Pathway Activation during Trypanosoma cruzi Infection Leads to Tissue-Dependent Parasite Control. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1123-1133. [PMID: 37603014 PMCID: PMC10783805 DOI: 10.4049/jimmunol.2300373] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/31/2023] [Indexed: 08/22/2023]
Abstract
Host cell invasion by Trypanosoma cruzi is a markedly silent process, with limited host transcriptional changes indicative of innate immune recognition, except for a modest type I IFN (IFN-I) response. In this study, we show that T. cruzi-induced IFN-β production was nearly abolished in primary murine cGAS-/- or stimulator of IFN genes (STING)-deficient (STINGGt) macrophages and fibroblasts. T. cruzi infection did not impact the ability of IFN-regulatory factor reporter macrophages to respond to classical cGAS-STING agonists, indicating that the limited IFN-β induction is not due to active parasite suppression. cGAS-/-, STINGGt, and IFN-α/β receptor-/- (IFNAR-/-) macrophages infected with T. cruzi yielded significantly higher numbers of amastigotes compared with wild-type macrophages; however, the impact of the STING pathway during infection in vivo is more complex. Despite an initial increase in parasite growth, STINGGt and IFNAR-/- mice ultimately had lower parasite burden in footpads as compared with wild-type mice, demonstrating a role for IFN-I expression in potentiating parasite growth at the infection site. STING pathway activation had little impact on parasite levels in the skeletal muscle; however, in the heart, cGAS-/- and STINGGt mice, but not IFNAR-/- mice, accumulated higher acute parasite loads, suggesting a protective role of STING sensing of T. cruzi in this organ that was independent of IFN-I. Together, these results demonstrate that host cGAS-STING senses T. cruzi infection, enhancing parasite growth at the site of entry, and contributes to acute-phase parasite restriction in the heart, a major site of tissue damage in chronic T. cruzi infection.
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Affiliation(s)
- Natasha Perumal
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA
- Department of Cellular Biology, University of Georgia, Athens, GA
| | - Brooke White
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA
| | | | - Rick L Tarleton
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA
- Department of Cellular Biology, University of Georgia, Athens, GA
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18
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Medrano-Bosch M, Simón-Codina B, Jiménez W, Edelman ER, Melgar-Lesmes P. Monocyte-endothelial cell interactions in vascular and tissue remodeling. Front Immunol 2023; 14:1196033. [PMID: 37483594 PMCID: PMC10360188 DOI: 10.3389/fimmu.2023.1196033] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/21/2023] [Indexed: 07/25/2023] Open
Abstract
Monocytes are circulating leukocytes of innate immunity derived from the bone marrow that interact with endothelial cells under physiological or pathophysiological conditions to orchestrate inflammation, angiogenesis, or tissue remodeling. Monocytes are attracted by chemokines and specific receptors to precise areas in vessels or tissues and transdifferentiate into macrophages with tissue damage or infection. Adherent monocytes and infiltrated monocyte-derived macrophages locally release a myriad of cytokines, vasoactive agents, matrix metalloproteinases, and growth factors to induce vascular and tissue remodeling or for propagation of inflammatory responses. Infiltrated macrophages cooperate with tissue-resident macrophages during all the phases of tissue injury, repair, and regeneration. Substances released by infiltrated and resident macrophages serve not only to coordinate vessel and tissue growth but cellular interactions as well by attracting more circulating monocytes (e.g. MCP-1) and stimulating nearby endothelial cells (e.g. TNF-α) to expose monocyte adhesion molecules. Prolonged tissue accumulation and activation of infiltrated monocytes may result in alterations in extracellular matrix turnover, tissue functions, and vascular leakage. In this review, we highlight the link between interactions of infiltrating monocytes and endothelial cells to regulate vascular and tissue remodeling with a special focus on how these interactions contribute to pathophysiological conditions such as cardiovascular and chronic liver diseases.
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Affiliation(s)
- Mireia Medrano-Bosch
- Department of Biomedicine, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Blanca Simón-Codina
- Department of Biomedicine, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Wladimiro Jiménez
- Department of Biomedicine, School of Medicine, University of Barcelona, Barcelona, Spain
- Biochemistry and Molecular Genetics Service, Hospital Clínic Universitari, Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Elazer R. Edelman
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Pedro Melgar-Lesmes
- Department of Biomedicine, School of Medicine, University of Barcelona, Barcelona, Spain
- Biochemistry and Molecular Genetics Service, Hospital Clínic Universitari, Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States
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19
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Ma P, Liu J, Qin J, Lai L, Heo GS, Luehmann H, Sultan D, Bredemeyer A, Bajapa G, Feng G, Jimenez J, Parks A, Amrute J, Villanueva A, Liu Y, Lin CY, Mack M, Amancherla K, Moslehi J, Lavine KJ. Expansion of Disease Specific Cardiac Macrophages in Immune Checkpoint Inhibitor Myocarditis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.28.538426. [PMID: 37162929 PMCID: PMC10168426 DOI: 10.1101/2023.04.28.538426] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Background Immune checkpoint inhibitors (ICIs), antibodies targeting PD-1/PD-L1 or CTLA4 have revolutionized cancer management but are associated with devastating immune-related adverse events (irAEs) including myocarditis. The main risk factor for ICI myocarditis is the use of combination PD-1 and CTLA4 inhibition. ICI-myocarditis is often fulminant and is pathologically characterized by myocardial infiltration of T lymphocytes and macrophages. While much has been learned regarding the role of T-cells in ICI-myocarditis, little is understood regarding the identity, transcriptional diversity, and functions of infiltrating macrophages. Methods We employed an established murine ICI myocarditis model ( Ctla4 +/- Pdcd1 -/- mice) to explore the cardiac immune landscape using single-cell RNA-sequencing, immunostaining, flow cytometry, in situ RNA hybridization and molecular imaging and antibody neutralization studies. Results We observed marked increases in CCR2 + monocyte-derived macrophages and CD8 + T-cells in this model. The macrophage compartment was heterogeneous and displayed marked enrichment in an inflammatory CCR2 + subpopulation highly expressing Cxcl9 , Cxcl10 , Gbp2b , and Fcgr4 that originated from CCR2 + monocytes. Importantly, a similar macrophage population expressing CXCL9 , CXCL10 , and CD16α (human homologue of mouse FcgR4) was found selectively expanded in patients with ICI myocarditis compared to other forms of heart failure and myocarditis. In silico prediction of cell-cell communication suggested interactions between T-cells and Cxcl9 + Cxcl10 + macrophages via IFN-γ and CXCR3 signaling pathways. Depleting CD8 + T-cells, macrophages, and blockade of IFN-γ signaling blunted the expansion of Cxcl9 + Cxcl10 + macrophages in the heart and attenuated myocarditis suggesting that this interaction was necessary for disease pathogenesis. Conclusion These data demonstrate that ICI-myocarditis is associated with the expansion of a specific population of IFN-γ induced inflammatory macrophages and suggest the possibility that IFN-γ blockade may be considered as a treatment option for this devastating condition.
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Affiliation(s)
- Pan Ma
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jing Liu
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Juan Qin
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Lulu Lai
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Gyu Seong Heo
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Hannah Luehmann
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Deborah Sultan
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Andrea Bredemeyer
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Geetika Bajapa
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Guoshuai Feng
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jesus Jimenez
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Antanisha Parks
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Junedh Amrute
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Ana Villanueva
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Yongjian Liu
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Chieh-Yu Lin
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Matthias Mack
- Department of Internal Medicine II – Nephrology, Universitatsklinikum Regensburg Klinik und Poliklinik Innere Medizin II, Regensburg, Bayern, Germany
| | - Kaushik Amancherla
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Javid Moslehi
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Kory J. Lavine
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
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20
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Benhar I, Ding J, Yan W, Whitney IE, Jacobi A, Sud M, Burgin G, Shekhar K, Tran NM, Wang C, He Z, Sanes JR, Regev A. Temporal single-cell atlas of non-neuronal retinal cells reveals dynamic, coordinated multicellular responses to central nervous system injury. Nat Immunol 2023; 24:700-713. [PMID: 36807640 DOI: 10.1038/s41590-023-01437-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 01/13/2023] [Indexed: 02/22/2023]
Abstract
Non-neuronal cells are key to the complex cellular interplay that follows central nervous system insult. To understand this interplay, we generated a single-cell atlas of immune, glial and retinal pigment epithelial cells from adult mouse retina before and at multiple time points after axonal transection. We identified rare subsets in naive retina, including interferon (IFN)-response glia and border-associated macrophages, and delineated injury-induced changes in cell composition, expression programs and interactions. Computational analysis charted a three-phase multicellular inflammatory cascade after injury. In the early phase, retinal macroglia and microglia were reactivated, providing chemotactic signals concurrent with infiltration of CCR2+ monocytes from the circulation. These cells differentiated into macrophages in the intermediate phase, while an IFN-response program, likely driven by microglia-derived type I IFN, was activated across resident glia. The late phase indicated inflammatory resolution. Our findings provide a framework to decipher cellular circuitry, spatial relationships and molecular interactions following tissue injury.
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Affiliation(s)
- Inbal Benhar
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel.
| | - Jiarui Ding
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Computer Science, University of British Columbia, Vancouver, British Columbia, Canada
| | - Wenjun Yan
- Department of Molecular and Cellular Biology and Center for Brain Science, Harvard University, Cambridge, MA, USA
| | - Irene E Whitney
- Department of Molecular and Cellular Biology and Center for Brain Science, Harvard University, Cambridge, MA, USA
| | - Anne Jacobi
- Department of Molecular and Cellular Biology and Center for Brain Science, Harvard University, Cambridge, MA, USA
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - Malika Sud
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Grace Burgin
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Karthik Shekhar
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Chemical and Biomolecular Engineering, Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Nicholas M Tran
- Department of Molecular and Cellular Biology and Center for Brain Science, Harvard University, Cambridge, MA, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Chen Wang
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - Zhigang He
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Neurology, Harvard Medical School, Boston, MA, USA
| | - Joshua R Sanes
- Department of Molecular and Cellular Biology and Center for Brain Science, Harvard University, Cambridge, MA, USA
| | - Aviv Regev
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Genentech, South San Francisco, CA, USA.
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21
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Sorobetea D, Matsuda R, Peterson ST, Grayczyk JP, Rao I, Krespan E, Lanza M, Assenmacher CA, Mack M, Beiting DP, Radaelli E, Brodsky IE. Inflammatory monocytes promote granuloma control of Yersinia infection. Nat Microbiol 2023; 8:666-678. [PMID: 36879169 PMCID: PMC10653359 DOI: 10.1038/s41564-023-01338-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 02/09/2023] [Indexed: 03/08/2023]
Abstract
Granulomas are organized immune cell aggregates formed in response to chronic infection or antigen persistence. The bacterial pathogen Yersinia pseudotuberculosis (Yp) blocks innate inflammatory signalling and immune defence, inducing neutrophil-rich pyogranulomas (PGs) within lymphoid tissues. Here we uncover that Yp also triggers PG formation within the murine intestinal mucosa. Mice lacking circulating monocytes fail to form defined PGs, have defects in neutrophil activation and succumb to Yp infection. Yersinia lacking virulence factors that target actin polymerization to block phagocytosis and reactive oxygen burst do not induce PGs, indicating that intestinal PGs form in response to Yp disruption of cytoskeletal dynamics. Notably, mutation of the virulence factor YopH restores PG formation and control of Yp in mice lacking circulating monocytes, demonstrating that monocytes override YopH-dependent blockade of innate immune defence. This work reveals an unappreciated site of Yersinia intestinal invasion and defines host and pathogen drivers of intestinal granuloma formation.
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Affiliation(s)
- Daniel Sorobetea
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Rina Matsuda
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Stefan T Peterson
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - James P Grayczyk
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Indira Rao
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Elise Krespan
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Matthew Lanza
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Charles-Antoine Assenmacher
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Daniel P Beiting
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Enrico Radaelli
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Igor E Brodsky
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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22
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Saadane A, Veenstra AA, Minns MS, Tang J, Du Y, Abubakr Elghazali F, Lessieur EM, Pearlman E, Kern TS. CCR2-positive monocytes contribute to the pathogenesis of early diabetic retinopathy in mice. Diabetologia 2023; 66:590-602. [PMID: 36698021 PMCID: PMC9892100 DOI: 10.1007/s00125-022-05860-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/13/2022] [Indexed: 01/27/2023]
Abstract
AIMS/HYPOTHESIS Accumulating evidence suggests that leucocytes play a critical role in diabetes-induced vascular lesions and other abnormalities that characterise the early stages of diabetic retinopathy. However, the role of monocytes has yet to be fully investigated; therefore, we used Ccr2-/- mice to study the role of CCR2+ inflammatory monocytes in the pathogenesis of diabetes-induced degeneration of retinal capillaries. METHODS Experimental diabetes was induced in wild-type and Ccr2-/- mice using streptozotocin. After 2 months, superoxide levels, expression of inflammatory genes, leucostasis, leucocyte- and monocyte-mediated cytotoxicity against retinal endothelial cell death, retinal thickness and visual function were evaluated. Retinal capillary degeneration was determined after 8 months of diabetes. Flow cytometry of peripheral blood for differential expression of CCR2 in monocytes was assessed. RESULTS In nondiabetic mice, CCR2 was highly expressed on monocytes, and Ccr2-/- mice lack CCR2+ monocytes in the peripheral blood. Diabetes-induced retinal superoxide, expression of proinflammatory genes Inos and Icam1, leucostasis and leucocyte-mediated cytotoxicity against retinal endothelial cells were inhibited in diabetic Ccr2-deficient mice and in chimeric mice lacking Ccr2 only from myeloid cells. In order to focus on monocytes, these cells were immuno-isolated after 2 months of diabetes, and they significantly increased monocyte-mediated endothelial cell cytotoxicity ex vivo. Monocytes from Ccr2-deficient mice caused significantly less endothelial cell death. The diabetes-induced retinal capillary degeneration was inhibited in Ccr2-/- mice and in chimeric mice lacking Ccr2 only from myeloid cells. CONCLUSIONS/INTERPRETATION CCR2+ inflammatory monocytes contribute to the pathogenesis of early lesions of diabetic retinopathy.
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Affiliation(s)
- Aicha Saadane
- Department of Ophthalmology, University of California-Irvine, Irvine, CA, USA.
| | | | - Martin S Minns
- Institute for Immunology, University of California-Irvine, Irvine, CA, USA
| | - Jie Tang
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH, USA
| | - Yunpeng Du
- Department of Ophthalmology, University of California-Irvine, Irvine, CA, USA
| | | | - Emma M Lessieur
- Department of Ophthalmology, University of California-Irvine, Irvine, CA, USA
| | - Eric Pearlman
- Institute for Immunology, University of California-Irvine, Irvine, CA, USA
| | - Timothy S Kern
- Department of Ophthalmology, University of California-Irvine, Irvine, CA, USA
- Veterans Administration Medical Center Research Service, Long Beach, CA, USA
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23
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Ozkan H, Di Francesco M, Willcockson H, Valdés-Fernández J, Di Francesco V, Granero-Moltó F, Prósper F, Decuzzi P, Longobardi L. Sustained inhibition of CC-chemokine receptor-2 via intraarticular deposition of polymeric microplates in post-traumatic osteoarthritis. Drug Deliv Transl Res 2023; 13:689-701. [PMID: 36109442 PMCID: PMC9794532 DOI: 10.1007/s13346-022-01235-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2022] [Indexed: 12/31/2022]
Abstract
Posttraumatic osteoarthritis (PTOA) is mostly treated via corticosteroid administration, and total joint arthroplasty continues to be the sole effective intervention in severe conditions. To assess the therapeutic potential of CCR2 targeting in PTOA, we used biodegradable microplates (µPLs) to achieve a slow and sustained intraarticular release of the CCR2 inhibitor RS504393 into injured knees and followed joint damage during disease progression. RS504393-loaded µPLs (RS-µPLs) were fabricated via a template-replica molding technique. A mixture of poly(lactic-co-glycolic acid) (PLGA) and RS504393 was deposited into 20 × 10 μm (length × height) wells in a polyvinyl alcohol (PVA) square-patterned template. After physicochemical and toxicological characterizations, the RS504393 release profile from µPL was assessed in PBS buffer. C57BL/6 J male mice were subjected to destabilization of the medial meniscus (DMM)/sham surgery, and RS-µPLs (1 mg/kg) were administered intraarticularly 1 week postsurgery. Administrations were repeated at 4 and 7 weeks post-DMM. Drug free-µPLs (DF-µPLs) and saline injections were performed as controls. Mice were euthanized at 4 and 10 weeks post-DMM, corresponding to the early and severe PTOA stages, respectively. Knees were evaluated for cartilage structure score (ACS, H&E), matrix loss (safranin O score), osteophyte formation and maturation from cartilage to bone (cartilage quantification), and subchondral plate thickness. The RS-µPL architecture ensured the sustained release of CCR2 inhibitors over several weeks, with ~ 20% of RS504393 still available at 21 days. This prolonged release improved cartilage structure and reduced bone damage and synovial hyperplasia at both PTOA stages. Extracellular matrix loss was also attenuated, although with less efficacy. The results indicate that local sustained delivery is needed to optimize CCR2-targeted therapies.
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Affiliation(s)
- Huseyin Ozkan
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA
| | - Martina Di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Helen Willcockson
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA
| | - José Valdés-Fernández
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA ,Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain
| | - Valentina Di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Froilán Granero-Moltó
- Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain ,Department of Orthopedic Surgery and Traumatology, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain ,Instituto de Investigacion Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Felipe Prósper
- Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain ,Instituto de Investigacion Sanitaria de Navarra (IdiSNA), Pamplona, Spain ,Department of Hematology, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Hemato-Oncology, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain
| | - Paolo Decuzzi
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Lara Longobardi
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC, 27599, USA.
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24
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Repeated dosing improves oncolytic rhabdovirus therapy in mice via interactions with intravascular monocytes. Commun Biol 2022; 5:1385. [PMID: 36536097 PMCID: PMC9761050 DOI: 10.1038/s42003-022-04254-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/11/2022] [Indexed: 12/23/2022] Open
Abstract
There is debate in the field of oncolytic virus (OV) therapy, whether a single viral dose, or multiple administrations, is better for tumor control. Using intravital microscopy, we describe the fate of vesicular stomatitis virus (VSV) delivered systemically as a first or a second dose. Following primary administration, VSV binds to the endothelium, initiates tumor infection and activates a proinflammatory response. This initial OV dose induces neutrophil migration into the tumor and limits viral replication. OV administered as a second dose fails to infect the tumor and is captured by intravascular monocytes. Despite a lack of direct infection, this second viral dose, in a monocyte-dependent fashion, enhances and sustains infection by the first viral dose, promotes CD8 T cell recruitment, delays tumor growth and improves survival in multi-dosing OV therapy. Thus, repeated VSV dosing engages monocytes to post-condition the tumor microenvironment for improved infection and anticancer T cell responses. Understanding the complex interactions between the subsequent viral doses is crucial for improving the efficiency of OV therapy and virus-based vaccines.
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25
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Petzold T, Zhang Z, Ballesteros I, Saleh I, Polzin A, Thienel M, Liu L, Ul Ain Q, Ehreiser V, Weber C, Kilani B, Mertsch P, Götschke J, Cremer S, Fu W, Lorenz M, Ishikawa-Ankerhold H, Raatz E, El-Nemr S, Görlach A, Marhuenda E, Stark K, Pircher J, Stegner D, Gieger C, Schmidt-Supprian M, Gaertner F, Almendros I, Kelm M, Schulz C, Hidalgo A, Massberg S. Neutrophil "plucking" on megakaryocytes drives platelet production and boosts cardiovascular disease. Immunity 2022; 55:2285-2299.e7. [PMID: 36272416 PMCID: PMC9767676 DOI: 10.1016/j.immuni.2022.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 08/23/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022]
Abstract
Intravascular neutrophils and platelets collaborate in maintaining host integrity, but their interaction can also trigger thrombotic complications. We report here that cooperation between neutrophil and platelet lineages extends to the earliest stages of platelet formation by megakaryocytes in the bone marrow. Using intravital microscopy, we show that neutrophils "plucked" intravascular megakaryocyte extensions, termed proplatelets, to control platelet production. Following CXCR4-CXCL12-dependent migration towards perisinusoidal megakaryocytes, plucking neutrophils actively pulled on proplatelets and triggered myosin light chain and extracellular-signal-regulated kinase activation through reactive oxygen species. By these mechanisms, neutrophils accelerate proplatelet growth and facilitate continuous release of platelets in steady state. Following myocardial infarction, plucking neutrophils drove excessive release of young, reticulated platelets and boosted the risk of recurrent ischemia. Ablation of neutrophil plucking normalized thrombopoiesis and reduced recurrent thrombosis after myocardial infarction and thrombus burden in venous thrombosis. We establish neutrophil plucking as a target to reduce thromboischemic events.
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Affiliation(s)
- Tobias Petzold
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Corresponding author
| | - Zhe Zhang
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Iván Ballesteros
- Program of Cardiovascular Regeneration, Fundación Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
| | - Inas Saleh
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Amin Polzin
- Department of Cardiology, Pulmonology and Vascular Medicine, Cardiovascular Research Institute Düsseldorf (CARID), Medical Faculty of the Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Manuela Thienel
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Lulu Liu
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Qurrat Ul Ain
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Vincent Ehreiser
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Christian Weber
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Badr Kilani
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Pontus Mertsch
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Jeremias Götschke
- Medizinische Klinik und Poliklinik V, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), 81377 Munich, Germany
| | - Sophie Cremer
- Department of Cardiology, Pulmonology and Vascular Medicine, Cardiovascular Research Institute Düsseldorf (CARID), Medical Faculty of the Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Wenwen Fu
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Michael Lorenz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Hellen Ishikawa-Ankerhold
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Elisabeth Raatz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Shaza El-Nemr
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Agnes Görlach
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich at the Technical University of Munich, 80636 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany
| | - Esther Marhuenda
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08007 Barcelona, Spain
| | - Konstantin Stark
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Joachim Pircher
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - David Stegner
- Institute of Experimental Biomedicine, University Hospital Würzburg and Rudolf Virchow Center for Integrative and Translational Bioimaging, 97070 Würzburg, Germany
| | - Christian Gieger
- Research Unit Molecular Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, 85764 Neuherberg, Germany,Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, 85764 Neuherberg, Germany,German Center for Diabetes Research (DZD), 85764 Neuherberg, Germany
| | - Marc Schmidt-Supprian
- Institute of Experimental Hematology, School of Medicine, Technical University Munich, 80333 Munich, Germany,Center for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich 81675, Germany,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), 69117 Heidelberg, Germany
| | - Florian Gaertner
- Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria
| | - Isaac Almendros
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08007 Barcelona, Spain,CIBER de Enfermedades Respiratorias, 28029 Madrid, Spain
| | - Malte Kelm
- Department of Cardiology, Pulmonology and Vascular Medicine, Cardiovascular Research Institute Düsseldorf (CARID), Medical Faculty of the Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany
| | - Andrés Hidalgo
- Program of Cardiovascular Regeneration, Fundación Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain,Vascular Biology and Therapeutics Program and Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Partner site Munich Heart Alliance, DZHK (German Centre for Cardiovascular Research), 80802 Munich, Germany,Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians- University Munich, 81377 Munich, Germany,Corresponding author
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26
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Wilden A, Glaubitz J, Otto O, Biedenweg D, Nauck M, Mack M, Ribback S, Bröker BM, von Rheinbaben SF, Lerch MM, Aghdassi AA, Weiss FU, Sendler M. Mobilization of CD11b+/Ly6chi monocytes causes multi organ dysfunction syndrome in acute pancreatitis. Front Immunol 2022; 13:991295. [PMID: 36300116 PMCID: PMC9589437 DOI: 10.3389/fimmu.2022.991295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/23/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Acute pancreatitis (AP) is an inflammatory disorder, the severe form of which is burdened with multi-organ dysfunction and high mortality. The pathogenesis of life –threatening organ complications, such as respiratory and renal failure, is unknown. Design Organ dysfunction was investigated in a mouse model of AP. The influence of monocytes and neutrophils on multi organ dysfunction syndrome (MODS) was investigated in vivo by antibody depletion. Using real-time-fluorescence and deformability-cytometry (RT-DC) analysis we determined the mechanical properties of neutrophils and monocytes during AP. Furthermore, blood samples of pancreatitis patients were used to characterize severity-dependent chemokine profiles according to the revised Atlanta classification. Results Similar to AP in humans, severe disease in the mouse model associates with organ dysfunction mainly of lung and kidney, which is triggered by a mobilisation of Ly6g-/CD11b+/Ly6c hi monocytes, but not of Ly6g+/CD11b+ neutrophils. Monocyte depletion by anti-CCR2 antibody treatment ameliorated lung function (oxygen consumption) without interfering with the systemic immune response. RT-DC analysis of circulation monocytes showed a significant increase in cell size during SAP, but without a compensatory increase in elasticity. Patient chemokine profiles show a correlation of AP severity with monocyte attracting chemokines like MCP-1 or MIG and with leukocyte mobilisation. Conclusion In AP, the physical properties of mobilized monocytes, especially their large size, result in an obstruction of the fine capillary systems of the lung and of the kidney glomeruli. A selective depletion of monocytes may represent a treatment strategy for pancreatitis as well as for other inflammation-related disorders.
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Affiliation(s)
- Anika Wilden
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Juliane Glaubitz
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Oliver Otto
- Center for Innovation Competence: Humoral Immune Reactions in Cardiovascular Disorders, University of Greifswald, Greifswald, Germany
| | - Doreen Biedenweg
- Center for Innovation Competence: Humoral Immune Reactions in Cardiovascular Disorders, University of Greifswald, Greifswald, Germany
- Department of Medicine B, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Diagnostics, University Medicine Greifswald, Greifswald, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK) (German Centre for Cardiovascular Research), Partner Site Greifswald, University Medicine, Greifswald, Germany
| | - Matthias Mack
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Silvia Ribback
- Institute of Pathology, Universitat Greifswald, Greifswald, Mecklenburg-Vorpommern, Germany
| | - Barbara M. Bröker
- Department of Immunology, University Medicine Greifswald, Greifswald, Germany
| | | | - Markus M. Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | | | - Frank Ulrich Weiss
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Sendler
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
- *Correspondence: Matthias Sendler,
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27
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Sahputra R, Dejyong K, Woolf AS, Mack M, Allen JE, Rückerl D, Herrick SE. Monocyte-derived peritoneal macrophages protect C57BL/6 mice against surgery-induced adhesions. Front Immunol 2022; 13:1000491. [PMID: 36275765 PMCID: PMC9583908 DOI: 10.3389/fimmu.2022.1000491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/13/2022] [Indexed: 02/02/2023] Open
Abstract
Peritoneal adhesions commonly occur after abdominal or pelvic surgery. These scars join internal organs to each other or to the cavity wall and can present with abdominal or pelvic pain, and bowel obstruction or female infertility. The mechanisms underlying adhesion formation remain unclear and thus, effective treatments are not forthcoming. Peritoneal macrophages accumulate after surgery and previous studies have attributed either pro- or anti-scarring properties to these cells. We propose that there are complex and nuanced responses after surgery with respect to both resident and also monocyte-derived peritoneal macrophage subpopulations. Moreover, we contend that differences in responses of specific macrophage subpopulations in part explain the risk of developing peritoneal scars. We characterized alterations in peritoneal macrophage subpopulations after surgery-induced injury using two strains of mice, BALB/c and C57BL/6, with known differences in macrophage response post-infection. At 14 days post-surgery, BALB/c mice displayed more adhesions compared with C57BL/6 mice. This increase in scarring correlated with a lower influx of monocyte-derived macrophages at day 3 post-surgery. Moreover, BALB/c mice showed distinct macrophage repopulation dynamics after surgery. To confirm a role for monocyte-derived macrophages, we used Ccr2-deficient mice as well as antibody-mediated depletion of CCR2 expressing cells during initial stages of adhesion formation. Both Ccr2-deficient and CCR2-depleted mice showed a significant increase in adhesion formation associated with the loss of peritoneal monocyte influx. These findings revealed an important protective role for monocyte-derived cells in reducing adhesion formation after surgery.
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Affiliation(s)
- Rinal Sahputra
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Krittee Dejyong
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla, Thailand
| | - Adrian S. Woolf
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Royal Manchester Children’s Hospital, Manchester University National Health Service (NHS) Foundation Trust, Manchester, United Kingdom
| | - Matthias Mack
- Department of Nephrology, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Judith E. Allen
- Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Dominik Rückerl
- Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Sarah E. Herrick
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Manchester Academic Health Science Centre, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
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28
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Kratofil RM, Shim HB, Shim R, Lee WY, Labit E, Sinha S, Keenan CM, Surewaard BGJ, Noh JY, Sun Y, Sharkey KA, Mack M, Biernaskie J, Deniset JF, Kubes P. A monocyte-leptin-angiogenesis pathway critical for repair post-infection. Nature 2022; 609:166-173. [PMID: 35948634 DOI: 10.1038/s41586-022-05044-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/29/2022] [Indexed: 11/09/2022]
Abstract
During infection, inflammatory monocytes are thought to be key for bacterial eradication, but this is hard to reconcile with the large numbers of neutrophils that are recruited for each monocyte that migrates to the afflicted tissue, and the much more robust microbicidal functions of the neutrophils. However, unlike neutrophils, monocytes have the capacity to convert to situationally specific macrophages that may have critical functions beyond infection control1,2. Here, using a foreign body coated with Staphylococcus aureus and imaging over time from cutaneous infection to wound resolution, we show that monocytes and neutrophils are recruited in similar numbers with low-dose infection but not with high-dose infection, and form a localization pattern in which monocytes surround the infection site, whereas neutrophils infiltrate it. Monocytes did not contribute to bacterial clearance but converted to macrophages that persisted for weeks after infection, regulating hypodermal adipocyte expansion and production of the adipokine hormone leptin. In infected monocyte-deficient mice there was increased persistent hypodermis thickening and an elevated leptin level, which drove overgrowth of dysfunctional blood vasculature and delayed healing, with a thickened scar. Ghrelin, which opposes leptin function3, was produced locally by monocytes, and reduced vascular overgrowth and improved healing post-infection. In sum, we find that monocytes function as a cellular rheostat by regulating leptin levels and revascularization during wound repair.
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Affiliation(s)
- Rachel M Kratofil
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Hanjoo B Shim
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Raymond Shim
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Woo Yong Lee
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Elodie Labit
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sarthak Sinha
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Catherine M Keenan
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Bas G J Surewaard
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ji Yeon Noh
- Department of Nutrition, Texas A&M University, College Station, TX, USA
| | - Yuxiang Sun
- Department of Nutrition, Texas A&M University, College Station, TX, USA
| | - Keith A Sharkey
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Matthias Mack
- Department of Internal Medicine II - Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Jeff Biernaskie
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Justin F Deniset
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. .,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. .,Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. .,Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - Paul Kubes
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. .,Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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29
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Maquet C, Baiwir J, Loos P, Rodriguez-Rodriguez L, Javaux J, Sandor R, Perin F, Fallon PG, Mack M, Cataldo D, Gillet L, Machiels B. Ly6C
hi
monocytes balance regulatory and cytotoxic CD4 T cell responses to control virus-induced immunopathology. Sci Immunol 2022; 7:eabn3240. [DOI: 10.1126/sciimmunol.abn3240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Gammaherpesviruses (γHVs) have coevolved with their host, leading to a remarkably high infection prevalence and establishment of latency. The lifelong persistence of γHVs in hosts appears to broadly shape host immunity, and we show here that pulmonary infection with Murid herpesvirus 4 (MuHV-4), a mouse γHV, drives the recruitment of Ly6C
hi
monocytes (MOs) into the airway, thereby modulating the host immune response. The absence of Ly6C
hi
MOs is associated with severe virus-induced immunopathology and the systemic release of inflammatory mediators. Mechanistically, MuHV-4–imprinted MOs recruit CD4 T cells to the airways and trigger immunosuppressive signaling pathways through the PD-L1/PD-1 axis, thereby dampening the deleterious activation of cytotoxic CD4 T cells. These results uncover a role for Ly6C
hi
MOs in modulating CD4 T cell functions and reveal pathways that could be targeted therapeutically to reduce detrimental immunopathological responses associated with respiratory viral infections.
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Affiliation(s)
- Céline Maquet
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Jérôme Baiwir
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Pauline Loos
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Lucia Rodriguez-Rodriguez
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Justine Javaux
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Rémy Sandor
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Fabienne Perin
- Laboratory of Biology of Tumor and Development, GIGA-Cancer ULiège and “Centre Hospitalier Universitaire de Liège (CHU)”, Liège 4000, Belgium
| | - Padraic G. Fallon
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Didier Cataldo
- Laboratory of Biology of Tumor and Development, GIGA-Cancer ULiège and “Centre Hospitalier Universitaire de Liège (CHU)”, Liège 4000, Belgium
| | - Laurent Gillet
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
| | - Bénédicte Machiels
- Laboratory of Immunology and Vaccinology, Faculty of Veterinary Medicine, FARAH, ULiège, Liège 4000, Belgium
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30
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Desel C, Murray PJ, Lehmann CHK, Heger L, Christensen D, Andersen P, Mack M, Dudziak D, Lang R. Monocytes Elicit a Neutrophil-Independent Th1/Th17 Response Upon Immunization With a Mincle-Dependent Glycolipid Adjuvant. Front Immunol 2022; 13:880474. [PMID: 35585969 PMCID: PMC9108773 DOI: 10.3389/fimmu.2022.880474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/01/2022] [Indexed: 12/24/2022] Open
Abstract
Successful subunit vaccination with recombinant proteins requires adjuvants. The glycolipid trehalose-dibehenate (TDB), a synthetic analog of the mycobacterial cord factor, potently induces Th1 and Th17 immune responses and is a candidate adjuvant for human immunization. TDB binds to the C-type lectin receptor Mincle and triggers Syk-Card9-dependent APC activation. In addition, interleukin (IL)-1 receptor/MyD88-dependent signaling is required for TDB adjuvanticity. The role of different innate immune cell types in adjuvant-stimulated Th1/Th17 responses is not well characterized. We investigated cell recruitment to the site of injection (SOI) and to the draining lymph nodes (dLNs) after immunization with the TDB containing adjuvant CAF01 in a protein-based vaccine. Recruitment of monocytes and neutrophils to the SOI and the dramatic increase in lymph node cellularity was partially dependent on both Mincle and MyD88. Despite their large numbers at the SOI, neutrophils were dispensable for the induction of Th1/Th17 responses. In contrast, CCR2-dependent monocyte recruitment was essential for the induction of Th1/Th17 cells. Transport of adjuvant to the dLN did not require Mincle, MyD88, or CCR2. Together, adjuvanticity conferred by monocytes can be separated at the cellular level from potential tissue damage by neutrophils.
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Affiliation(s)
- Christiane Desel
- Institute of Clinical Microbiology, Immunology and Hygiene, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- *Correspondence: Christiane Desel, ; Roland Lang,
| | - Peter J. Murray
- Department of Infectious Disease, St. Jude Children’s Research Hospital, Memphis, TN, United States
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Christian H. K. Lehmann
- Department of Dermatology, Laboratory of Dendritic Cell Biology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Lukas Heger
- Department of Dermatology, Laboratory of Dendritic Cell Biology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Dennis Christensen
- Department of Infectious Disease Immunology, Statens Serum Institute, Copenhagen, Denmark
| | - Peter Andersen
- Department of Infectious Disease Immunology, Statens Serum Institute, Copenhagen, Denmark
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Diana Dudziak
- Department of Dermatology, Laboratory of Dendritic Cell Biology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Roland Lang
- Institute of Clinical Microbiology, Immunology and Hygiene, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- *Correspondence: Christiane Desel, ; Roland Lang,
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31
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Biram A, Liu J, Hezroni H, Davidzohn N, Schmiedel D, Khatib-Massalha E, Haddad M, Grenov A, Lebon S, Salame TM, Dezorella N, Hoffman D, Abou Karam P, Biton M, Lapidot T, Bemark M, Avraham R, Jung S, Shulman Z. Bacterial infection disrupts established germinal center reactions through monocyte recruitment and impaired metabolic adaptation. Immunity 2022; 55:442-458.e8. [PMID: 35182483 DOI: 10.1016/j.immuni.2022.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/11/2021] [Accepted: 01/18/2022] [Indexed: 02/07/2023]
Abstract
Consecutive exposures to different pathogens are highly prevalent and often alter the host immune response. However, it remains unknown how a secondary bacterial infection affects an ongoing adaptive immune response elicited against primary invading pathogens. We demonstrated that recruitment of Sca-1+ monocytes into lymphoid organs during Salmonella Typhimurium (STm) infection disrupted pre-existing germinal center (GC) reactions. GC responses induced by influenza, plasmodium, or commensals deteriorated following STm infection. GC disruption was independent of the direct bacterial interactions with B cells and instead was induced through recruitment of CCR2-dependent Sca-1+ monocytes into the lymphoid organs. GC collapse was associated with impaired cellular respiration and was dependent on TNFα and IFNγ, the latter of which was essential for Sca-1+ monocyte differentiation. Monocyte recruitment and GC disruption also occurred during LPS-supplemented vaccination and Listeria monocytogenes infection. Thus, systemic activation of the innate immune response upon severe bacterial infection is induced at the expense of antibody-mediated immunity.
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Affiliation(s)
- Adi Biram
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel.
| | - Jingjing Liu
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Hadas Hezroni
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Natalia Davidzohn
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel; Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Dominik Schmiedel
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Eman Khatib-Massalha
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Montaser Haddad
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Amalie Grenov
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sacha Lebon
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Tomer Meir Salame
- Department of Life Science Core Facilities, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Nili Dezorella
- Electron Microscopy Unit, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Dotan Hoffman
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Paula Abou Karam
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Moshe Biton
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Tsvee Lapidot
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Mats Bemark
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - Roi Avraham
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Steffen Jung
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Ziv Shulman
- Department of Immunology, Weizmann Institute of Science, Rehovot 7610001, Israel.
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Hiyoshi H, English BC, Diaz-Ochoa VE, Wangdi T, Zhang LF, Sakaguchi M, Haneda T, Tsolis RM, Bäumler AJ. Virulence factors perforate the pathogen-containing vacuole to signal efferocytosis. Cell Host Microbe 2022; 30:163-170.e6. [PMID: 34951948 PMCID: PMC8831471 DOI: 10.1016/j.chom.2021.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/20/2021] [Accepted: 11/30/2021] [Indexed: 12/11/2022]
Abstract
Intracellular pathogens commonly reside within macrophages to find shelter from humoral defenses, but host cell death can expose them to the extracellular milieu. We find intracellular pathogens solve this dilemma by using virulence factors to generate a complement-dependent find-me signal that initiates uptake by a new phagocyte through efferocytosis. During macrophage death, Salmonella uses a type III secretion system to perforate the membrane of the pathogen-containing vacuole (PCV), thereby triggering complement deposition on bacteria entrapped in pore-induced intracellular traps (PITs). In turn, complement activation signals neutrophil efferocytosis, a process that shelters intracellular bacteria from the respiratory burst. Similarly, Brucella employs its type IV secretion system to perforate the PCV membrane, which induces complement deposition on bacteria entrapped in PITs. Collectively, this work identifies virulence factor-induced perforation of the PCV as a strategy of intracellular pathogens to generate a find-me signal for efferocytosis.
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Affiliation(s)
- Hirotaka Hiyoshi
- Department of Bacteriology, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan; Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA
| | - Bevin C English
- Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA
| | - Vladimir E Diaz-Ochoa
- Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA
| | - Tamding Wangdi
- Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA
| | - Lillian F Zhang
- Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA
| | - Miako Sakaguchi
- Central Laboratory, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Takeshi Haneda
- Laboratory of Microbiology, School of Pharmacy, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Renée M Tsolis
- Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA
| | - Andreas J Bäumler
- Department of Medical Microbiology and Immunology, University of California at Davis, One Shields Ave, Davis, CA 95616, USA.
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Monoranu CM, Hartmann T, Strobel S, Heinsen H, Riederer P, Distel L, Bohnert S. Is There Any Evidence of Monocytes Involvement in Alzheimer's Disease? A Pilot Study on Human Postmortem Brain. J Alzheimers Dis Rep 2022; 5:887-897. [PMID: 35088038 PMCID: PMC8764630 DOI: 10.3233/adr-210052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 10/23/2021] [Indexed: 12/19/2022] Open
Abstract
Background The role of neuroinflammation has become more evident in the pathogenesis of neurodegenerative diseases. Increased expression of microglial markers is widely reported in Alzheimer's disease (AD), but much less is known about the role of monocytes in AD pathogenesis. In AD animal models, bone marrow-derived monocytes appear to infiltrate the parenchyma and contribute to the phagocytosis of amyloid-β depositions, but this infiltration has not been established in systematic studies of the human brain postmortem. Objective In addition to assessing the distribution of different subtypes of microglia by immunostaining for CD68, HLA-DR, CD163, and CD206, we focused on the involvement of C-chemokine receptor type2 (CCR2) positive monocytes during the AD course. Methods We used formalin-fixed and paraffin-embedded tissue from four vulnerable brain regions (hippocampus, occipital lobe, brainstem, and cerebellum) from neuropathologically characterized AD cases at different Braak stages and age-matched controls. Results Only singular migrated CCR2-positive cells were found in all brain regions and stages. The brainstem showed the highest number of positive cells overall, followed by the hippocampus. This mechanism of recruitment seems to work less efficiently in the human brain at an advanced age, and the ingress of monocytes obviously takes place in much reduced numbers or not at all. Conclusion In contrast to studies on animal models, we observed only a quite low level of myeloid monocytes associated with AD pathology. Furthermore, we provide evidence associating early microglial reactions carried out in particular by pro-inflammatory cells with early effects on tangle- and plaque-positive vulnerable brain regions.
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Affiliation(s)
- Camelia-Maria Monoranu
- Institute of Pathology, Department of Neuropathology, Julius-Maximilian-University of Wuerzburg, Wuerzburg, Germany
| | - Tim Hartmann
- Institute of Pathology, Department of Neuropathology, Julius-Maximilian-University of Wuerzburg, Wuerzburg, Germany
| | - Sabrina Strobel
- Institute of Pathology, Julius-Maximilian-University of Wuerzburg, Wuerzburg, Germany
| | - Helmut Heinsen
- Department of Psychiatry, Morphological Brain Research Unit, University of Wuerzburg, Wuerzburg, Germany.,Department of Pathology, University of São Paulo, São Paulo, Brazil
| | - Peter Riederer
- Clinic and Policlinic for Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, University of Wuerzburg, Wuerzburg, Germany.,Department of Psychiatry, University of South Denmark, Odense, Denmark
| | - Luitpold Distel
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Simone Bohnert
- Institute of Forensic Medicine, Julius-Maximilian-University of Wuerzburg, Wuerzburg, Germany
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Balam S, Buchtler S, Winter F, Schmidbauer K, Neumayer S, Talke Y, Renner K, Geissler EK, Mack M. Donor-But Not Recipient-Derived Cells Produce Collagen-1 in Chronically Rejected Cardiac Allografts. Front Immunol 2022; 12:816509. [PMID: 35126373 PMCID: PMC8807636 DOI: 10.3389/fimmu.2021.816509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/28/2021] [Indexed: 11/13/2022] Open
Abstract
Fibrosis is a prominent feature of chronic allograft rejection, caused by an excessive production of matrix proteins, including collagen-1. Several cell types produce collagen-1, including mesenchymal fibroblasts and cells of hematopoietic origin. Here, we sought to determine whether tissue-resident donor-derived cells or allograft-infiltrating recipient-derived cells are responsible for allograft fibrosis, and whether hematopoietic cells contribute to collagen production. A fully MHC-mismatched mouse heterotopic heart transplantation model was used, with transient depletion of CD4+ T cells to prevent acute rejection. Collagen-1 was selectively knocked out in recipients or donors. In addition, collagen-1 was specifically deleted in hematopoietic cells. Tissue-resident macrophages were depleted using anti-CSF1R antibody. Allograft fibrosis and inflammation were quantified 20 days post-transplantation. Selective collagen-1 knock-out in recipients or donors showed that tissue-resident cells from donor hearts, but not infiltrating recipient-derived cells, are responsible for production of collagen-1 in allografts. Cell-type-specific knock-out experiments showed that hematopoietic tissue-resident cells in donor hearts substantially contributed to graft fibrosis. Tissue resident macrophages, however, were not responsible for collagen-production, as their deletion worsened allograft fibrosis. Donor-derived cells including those of hematopoietic origin determine allograft fibrosis, making them attractive targets for organ preconditioning to improve long-term transplantation outcomes.
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Affiliation(s)
- Saidou Balam
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Simone Buchtler
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Frederike Winter
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
- Regensburg Center for Interventional Immunology (RCI), University of Regensburg, Regensburg, Germany
| | - Kathrin Schmidbauer
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Sophia Neumayer
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Yvonne Talke
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Kerstin Renner
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Edward K. Geissler
- Department of Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
- Regensburg Center for Interventional Immunology (RCI), University of Regensburg, Regensburg, Germany
- *Correspondence: Matthias Mack,
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Microglia activate early anti-viral responses upon HSV-1 entry into the brain to counteract development of encephalitis-like disease in mice. J Virol 2022; 96:e0131121. [PMID: 35045263 DOI: 10.1128/jvi.01311-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Spread of herpes simplex virus 1 (HSV1) from the periphery to the central nervous system (CNS) can lead to extensive infection and pathological inflammation in the brain, causing herpes simplex encephalitis (HSE). It has been shown that microglia, the CNS-resident macrophages, are involved in early sensing of HSV1 and an induction of antiviral responses. In addition, infiltration of peripheral immune cells may contribute to control of viral infection. In this study, we tested the effect of microglia depletion in a mouse model of HSE. Increased viral titers and increased disease severity were observed in microglia-depleted mice. The effect of microglia depletion was more pronounced in wild-type than in cGas-/- mice, revealing that this immune sensor contributes to the antiviral activity of microglia. Importantly, microglia depletion led to reduced production of type I interferon (IFN), pro-inflammatory cytokines and chemokines at early time points after viral entry into the CNS. In line with this, in vitro experiments on murine primary CNS cells demonstrated microglial presence to be essential for IFN RNA induction, and control of HSV1 replication. However, the effect of microglia depletion on expression of IFNs, and inflammatory cytokines was restricted to early time point of HSV1 entry into the CNS. There was no major alteration of infiltration of CD45-positive cells in microglia-depleted mice. Collectively, our data demonstrate a key role for microglia in controlling HSV1 replication early after viral entry into the CNS and highlight the importance of a prompt antiviral innate response to reduce the risk of HSE development. Importance One of the most devastating and acute neurological conditions is encephalitis, i.e. inflammation of brain tissue. Herpes simplex virus 1 (HSV1) is a highly prevalent pathogen in humans, and the most frequent cause of viral sporadic encephalitis, called herpes simplex encephalitis (HSE). HSV1 has the ability to infect peripheral neurons and reach the central nervous system (CNS) of humans, where it can be detected by brain resident cells and infiltrating immune cells, leading to protective and damaging immune responses. In this study, we investigated the effects of a depletion of microglia, the main brain-resident immune cell type. For this purpose, we used a mouse model of HSE. We found that viral levels increased and disease symptoms worsened in microglia-depleted mice. In addition, mice lacking a major sensor of viral DNA, cGAS, manifested more pronounced disease than wild-type mice, highlighting the importance of this immune sensor in the activity of microglia. Evidently, microglia depletion led to a reduced production of many known antiviral factors, most notably type I interferon (IFN). The importance of microglia in the early control of HSV1 spread and the generation of antiviral responses is further demonstrated by experiments on murine mixed glial cell cultures. Interestingly, mice with microglia depletion exhibited an unaltered activation of antiviral responses and recruitment of immune cells from the periphery at later time points of infection, but this did not prevent the development of the disease. Overall, the data highlight the importance of a rapid activation of the host defense, with microglia playing a critical role in controlling HSV1 infection, which eventually prevents damage to neurons and brain tissue.
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Liu W, Stachura P, Xu HC, Váraljai R, Shinde P, Ganesh NU, Mack M, Van Lierop A, Huang A, Sundaram B, Lang KS, Picard D, Fischer U, Remke M, Homey B, Roesch A, Häussinger D, Lang PA, Borkhardt A, Pandyra AA. BAFF Attenuates Immunosuppressive Monocytes in the Melanoma Tumor Microenvironment. Cancer Res 2022; 82:264-277. [PMID: 34810198 PMCID: PMC9397630 DOI: 10.1158/0008-5472.can-21-1171] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/17/2021] [Accepted: 11/15/2021] [Indexed: 01/07/2023]
Abstract
Emerging evidence indicates B-cell activating factor (BAFF, Tnfsf13b) to be an important cytokine for antitumor immunity. In this study, we generated a BAFF-overexpressing B16.F10 melanoma cell model and found that BAFF-expressing tumors grow more slowly in vivo than control tumors. The tumor microenvironment (TME) of BAFF-overexpressing tumors had decreased myeloid infiltrates with lower PD-L1 expression. Monocyte depletion and anti-PD-L1 antibody treatment confirmed the functional importance of monocytes for the phenotype of BAFF-mediated tumor growth delay. RNA sequencing analysis confirmed that monocytes isolated from BAFF-overexpressing tumors were characterized by a less exhaustive phenotype and were enriched for in genes involved in activating adaptive immune responses and NF-κB signaling. Evaluation of patients with late-stage metastatic melanoma treated with inhibitors of the PD-1/PD-L1 axis demonstrated a stratification of patients with high and low BAFF plasma levels. Patients with high BAFF levels experienced lower responses to anti-PD-1 immunotherapies. In summary, these results show that BAFF, through its effect on tumor-infiltrating monocytes, not only impacts primary tumor growth but can serve as a biomarker to predict response to anti-PD-1 immunotherapy in advanced disease. SIGNIFICANCE: The BAFF cytokine regulates monocytes in the melanoma microenvironment to suppress tumor growth, highlighting the importance of BAFF in antitumor immunity.
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Affiliation(s)
- Wei Liu
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Paweł Stachura
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Haifeng C. Xu
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Renáta Váraljai
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University of Duisburg-Essen and the German Cancer Consortium (DKTK), Essen, Germany
| | - Prashant Shinde
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Nikkitha Umesh Ganesh
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Matthias Mack
- Department of Nephrology, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Anke Van Lierop
- Department of Dermatology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Anfei Huang
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Balamurugan Sundaram
- Department of Molecular Medicine II, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Karl S. Lang
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Daniel Picard
- Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University, Düsseldorf, Germany.,Division of Pediatric Neuro-Oncogenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Consortium for Translational Cancer Research (DKTK), partner site Essen/Düsseldorf, Düsseldorf, Germany.,Department of Neuropathology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Ute Fischer
- Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University, Düsseldorf, Germany
| | - Marc Remke
- Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University, Düsseldorf, Germany.,Division of Pediatric Neuro-Oncogenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Consortium for Translational Cancer Research (DKTK), partner site Essen/Düsseldorf, Düsseldorf, Germany.,Department of Neuropathology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Bernhard Homey
- Department of Dermatology, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | - Alexander Roesch
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University of Duisburg-Essen and the German Cancer Consortium (DKTK), Essen, Germany
| | - Dieter Häussinger
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Medical Faculty, Heinrich-Heine University, Düsseldorf, Germany
| | | | - Arndt Borkhardt
- Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University, Düsseldorf, Germany
| | - Aleksandra A. Pandyra
- Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University, Düsseldorf, Germany.,Corresponding Author: Aleksandra A. Pandyra, Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University, Universitätsstraβe 1, Düsseldorf, 40225, Germany. E-mail:
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Dvir-Szternfeld R, Castellani G, Arad M, Cahalon L, Colaiuta SP, Keren-Shaul H, Croese T, Burgaletto C, Baruch K, Ulland T, Colonna M, Weiner A, Amit I, Schwartz M. Alzheimer's disease modification mediated by bone marrow-derived macrophages via a TREM2-independent pathway in mouse model of amyloidosis. NATURE AGING 2022; 2:60-73. [PMID: 37118355 DOI: 10.1038/s43587-021-00149-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 11/04/2021] [Indexed: 04/30/2023]
Abstract
Microglia and monocyte-derived macrophages (MDM) are key players in dealing with Alzheimer's disease. In amyloidosis mouse models, activation of microglia was found to be TREM2 dependent. Here, using Trem2-/-5xFAD mice, we assessed whether MDM act via a TREM2-dependent pathway. We adopted a treatment protocol targeting the programmed cell death ligand-1 (PD-L1) immune checkpoint, previously shown to modify Alzheimer's disease via MDM involvement. Blockade of PD-L1 in Trem2-/-5xFAD mice resulted in cognitive improvement and reduced levels of water-soluble amyloid beta1-42 with no effect on amyloid plaque burden. Single-cell RNA sequencing revealed that MDM, derived from both Trem2-/- and Trem2+/+5xFAD mouse brains, express a unique set of genes encoding scavenger receptors (for example, Mrc1, Msr1). Blockade of monocyte trafficking using anti-CCR2 antibody completely abrogated the cognitive improvement induced by anti-PD-L1 treatment in Trem2-/-5xFAD mice and similarly, but to a lesser extent, in Trem2+/+5xFAD mice. These results highlight a TREM2-independent, disease-modifying activity of MDM in an amyloidosis mouse model.
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Affiliation(s)
- Raz Dvir-Szternfeld
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Giulia Castellani
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Michal Arad
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Liora Cahalon
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | | | - Hadas Keren-Shaul
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Tommaso Croese
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Chiara Burgaletto
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Kuti Baruch
- ImmunoBrain Checkpoint Ltd, Ness Ziona, Israel
| | - Tyler Ulland
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Assaf Weiner
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel.
| | - Ido Amit
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel.
| | - Michal Schwartz
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
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38
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Fei L, Ren X, Yu H, Zhan Y. Targeting the CCL2/CCR2 Axis in Cancer Immunotherapy: One Stone, Three Birds? Front Immunol 2021; 12:771210. [PMID: 34804061 PMCID: PMC8596464 DOI: 10.3389/fimmu.2021.771210] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/19/2021] [Indexed: 12/15/2022] Open
Abstract
CCR2 is predominantly expressed by monocytes/macrophages with strong proinflammatory functions, prompting the development of CCR2 antagonists to dampen unwanted immune responses in inflammatory and autoimmune diseases. Paradoxically, CCR2-expressing monocytes/macrophages, particularly in tumor microenvironments, can be strongly immunosuppressive. Thus, targeting the recruitment of immunosuppressive monocytes/macrophages to tumors by CCR2 antagonism has recently been investigated as a strategy to modify the tumor microenvironment and enhance anti-tumor immunity. We present here that beneficial effects of CCR2 antagonism in the tumor setting extend beyond blocking chemotaxis of suppressive myeloid cells. Signaling within the CCL2/CCR2 axis shows underappreciated effects on myeloid cell survival and function polarization. Apart from myeloid cells, T cells are also known to express CCR2. Nevertheless, tissue homing of Treg cells among T cell populations is preferentially affected by CCR2 deficiency. Further, CCR2 signaling also directly enhances Treg functional potency. Thus, although Tregs are not the sole type of T cells expressing CCR2, the net outcome of CCR2 antagonism in T cells favors the anti-tumor arm of immune responses. Finally, the CCL2/CCR2 axis directly contributes to survival/growth and invasion/metastasis of many types of tumors bearing CCR2. Together, CCR2 links to two main types of suppressive immune cells by multiple mechanisms. Such a CCR2-assoicated immunosuppressive network is further entangled with paracrine and autocrine CCR2 signaling of tumor cells. Strategies to target CCL2/CCR2 axis as cancer therapy in the view of three types of CCR2-expessing cells in tumor microenvironment are discussed.
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Affiliation(s)
- Liyang Fei
- Department of Drug Discovery, Shanghai Huaota Biopharm, Shanghai, China
| | - Xiaochen Ren
- Department of Drug Discovery, Shanghai Huaota Biopharm, Shanghai, China
| | - Haijia Yu
- Department of Drug Discovery, Shanghai Huaota Biopharm, Shanghai, China
| | - Yifan Zhan
- Department of Drug Discovery, Shanghai Huaota Biopharm, Shanghai, China
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39
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Cohen K, Mouhadeb O, Ben Shlomo S, Langer M, Neumann A, Erez N, Moshkovits I, Pelet R, Kedar DJ, Brazowski E, Guilliams M, Goodridge HS, Gluck N, Varol C. COMMD10 is critical for Kupffer cell survival and controls Ly6C hi monocyte differentiation and inflammation in the injured liver. Cell Rep 2021; 37:110026. [PMID: 34788631 DOI: 10.1016/j.celrep.2021.110026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 09/27/2021] [Accepted: 10/28/2021] [Indexed: 12/23/2022] Open
Abstract
Liver-resident macrophages Kupffer cells (KCs) and infiltrating Ly6Chi monocytes both contribute to liver tissue regeneration in various pathologies but also to disease progression upon disruption of orderly consecutive regeneration cascades. Little is known about molecular pathways that regulate their differentiation, maintenance, or inflammatory behavior during injury. Here, we show that copper metabolism MURR1 domain (COMMD)10-deficient KCs adopt liver-specific identity. Strikingly, COMMD10 deficiency in KCs and in other tissue-resident macrophages impedes their homeostatic survival, leading to their continuous replacement by Ly6Chi monocytes. While COMMD10 deficiency in KCs mildly worsens acetaminophen-induced liver injury (AILI), its deficiency in Ly6Chi monocytes results in exacerbated and sustained hepatic damage. Monocytes display unleashed inflammasome activation and a reduced type I interferon response and acquire "neutrophil-like" and lipid-associated macrophage differentiation fates. Collectively, COMMD10 appears indispensable for KC and other tissue-resident macrophage survival and is an important regulator of Ly6Chi monocyte fate decisions and reparative behavior in the diseased liver.
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Affiliation(s)
- Keren Cohen
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel; Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Odelia Mouhadeb
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel; Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Shani Ben Shlomo
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel
| | - Marva Langer
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel; Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Anat Neumann
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel
| | - Noam Erez
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel
| | - Itay Moshkovits
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel; Internal Medicine T, Sourasky Medical Center, Tel-Aviv 64239, Israel
| | - Rotem Pelet
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel
| | - Daniel J Kedar
- Department of Plastic and Reconstructive Surgery, Sourasky Medical Center, Tel-Aviv 64239, Israel
| | - Eli Brazowski
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel
| | - Martin Guilliams
- VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent 9052, Belgium
| | - Helen S Goodridge
- Board of Governors Regenerative Medicine Institute and Research Division of Immunology, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Nathan Gluck
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel.
| | - Chen Varol
- Research Center for Digestive Tract and Liver Diseases, Sourasky Medical Center, and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 64239, Israel; Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
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40
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Hoffman D, Tevet Y, Trzebanski S, Rosenberg G, Vainman L, Solomon A, Hen-Avivi S, Ben-Moshe NB, Avraham R. A non-classical monocyte-derived macrophage subset provides a splenic replication niche for intracellular Salmonella. Immunity 2021; 54:2712-2723.e6. [PMID: 34788598 PMCID: PMC8691386 DOI: 10.1016/j.immuni.2021.10.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 07/27/2021] [Accepted: 10/18/2021] [Indexed: 12/24/2022]
Abstract
Interactions between intracellular bacteria and mononuclear phagocytes give rise to diverse cellular phenotypes that may determine the outcome of infection. Recent advances in single-cell RNA sequencing (scRNA-seq) have identified multiple subsets within the mononuclear population, but implications to their function during infection are limited. Here, we surveyed the mononuclear niche of intracellular Salmonella Typhimurium (S.Tm) during early systemic infection in mice. We described eclipse-like growth kinetics in the spleen, with a first phase of bacterial control mediated by tissue-resident red-pulp macrophages. A second phase involved extensive bacterial replication within a macrophage population characterized by CD9 expression. We demonstrated that CD9+ macrophages induced pathways for detoxificating oxidized lipids, that may be utilized by intracellular S.Tm. We established that CD9+ macrophages originated from non-classical monocytes (NCM), and NCM-depleted mice were more resistant to S.Tm infection. Our study defines macrophage subset-specific host-pathogen interactions that determine early infection dynamics and infection outcome of the entire organism. At early stages, Salmonella kinetics follows an eclipse-like dynamics CD9 Macs are an intracellular replication niche for Salmonella during eclipse CD9 Macs derive from non-classical monocytes and induce pathways to detoxify oxLDL CD9 Macs depletion reduces Salmonella infection and prolongs mice survival
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Affiliation(s)
- Dotan Hoffman
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Yaara Tevet
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Sébastien Trzebanski
- Department of Immunology, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Gili Rosenberg
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Leia Vainman
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Aryeh Solomon
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Shelly Hen-Avivi
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Noa Bossel Ben-Moshe
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Roi Avraham
- Department of Biological Regulation, Weizmann Institute of Science, 7610001 Rehovot, Israel.
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41
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Cabeza-Cabrerizo M, Minutti CM, da Costa MP, Cardoso A, Jenkins RP, Kulikauskaite J, Buck MD, Piot C, Rogers N, Crotta S, Whittaker L, Encabo HH, McCauley JW, Allen JE, Pasparakis M, Wack A, Sahai E, Reis e Sousa C. Recruitment of dendritic cell progenitors to foci of influenza A virus infection sustains immunity. Sci Immunol 2021; 6:eabi9331. [PMID: 34739343 PMCID: PMC7612017 DOI: 10.1126/sciimmunol.abi9331] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Protection from infection with respiratory viruses such as influenza A virus (IAV) requires T cell–mediated immune responses initiated by conventional dendritic cells (cDCs) that reside in the respiratory tract. Here, we show that effective induction of T cell responses against IAV in mice requires reinforcement of the resident lung cDC network by cDC progenitors. We found that CCR2-binding chemokines produced during IAV infection recruit pre-cDCs from blood and direct them to foci of infection, increasing the number of progeny cDCs next to sites of viral replication. Ablation of CCR2 in the cDC lineage prevented this increase and resulted in a deficit in IAV-specific T cell responses and diminished resistance to reinfection. These data suggest that the homeostatic network of cDCs in tissues is insufficient for immunity and reveal a chemokine-driven mechanism of expansion of lung cDC numbers that amplifies T cell responses against respiratory viruses.
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Affiliation(s)
- Mar Cabeza-Cabrerizo
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Carlos M Minutti
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | | | - Ana Cardoso
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Robert P Jenkins
- Tumour Cell Biology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Justina Kulikauskaite
- Immunoregulation Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Michael D Buck
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Cécile Piot
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Neil Rogers
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Stefania Crotta
- Immunoregulation Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Lynne Whittaker
- Worldwide Influenza Centre, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Hector Huerga Encabo
- Haematopoietic Stem Cell Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - John W McCauley
- Worldwide Influenza Centre, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Judith E Allen
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Manolis Pasparakis
- Institute for Genetics and Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Joseph-Stelzmann-Str. 26, 50931 Cologne, Germany
| | - Andreas Wack
- Immunoregulation Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Erik Sahai
- Tumour Cell Biology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Caetano Reis e Sousa
- Immunobiology Laboratory, Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
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42
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Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live imaging of SARS-CoV-2 infection in mice reveals that neutralizing antibodies require Fc function for optimal efficacy. Immunity 2021; 54:2143-2158.e15. [PMID: 34453881 PMCID: PMC8372518 DOI: 10.1016/j.immuni.2021.08.015] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/27/2021] [Accepted: 08/11/2021] [Indexed: 12/29/2022]
Abstract
Neutralizing antibodies (NAbs) are effective in treating COVID-19, but the mechanism of immune protection is not fully understood. Here, we applied live bioluminescence imaging (BLI) to monitor the real-time effects of NAb treatment during prophylaxis and therapy of K18-hACE2 mice intranasally infected with SARS-CoV-2-nanoluciferase. Real-time imaging revealed that the virus spread sequentially from the nasal cavity to the lungs in mice and thereafter systemically to various organs including the brain, culminating in death. Highly potent NAbs from a COVID-19 convalescent subject prevented, and also effectively resolved, established infection when administered within three days. In addition to direct neutralization, depletion studies indicated that Fc effector interactions of NAbs with monocytes, neutrophils, and natural killer cells were required to effectively dampen inflammatory responses and limit immunopathology. Our study highlights that both Fab and Fc effector functions of NAbs are essential for optimal in vivo efficacy against SARS-CoV-2.
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Affiliation(s)
- Irfan Ullah
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Jérémie Prévost
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Mark S Ladinsky
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Helen Stone
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Maolin Lu
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Sai Priya Anand
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Department of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada
| | - Guillaume Beaudoin-Bussières
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Kelly Symmes
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Mehdi Benlarbi
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada
| | - Shilei Ding
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada
| | - Romain Gasser
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Corby Fink
- Department of Microbiology and Immunology, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Yaozong Chen
- Infectious Disease Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Alexandra Tauzin
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | | | | | | | - Matthias Mack
- Universitätsklinikum Regensburg, Innere Medizin II - Nephrologie, Regensburg 93042, Germany
| | - Kunho Chung
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Craig B Wilen
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gregory A Dekaban
- Department of Microbiology and Immunology, University of Western Ontario, London, ON N6A 5B7, Canada; Molecluar Medicine Research Laboratories, Robarts Research Institute, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Jimmy D Dikeakos
- Department of Microbiology and Immunology, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Emily A Bruce
- Division of Immunobiology, Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT 05405. USA
| | - Daniel E Kaufmann
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Leonidas Stamatatos
- Vaccine and Infectious Disease Division, Fred Hutchinson Center, Seattle, WA 98195, USA; Department of Global Health, University of Washington, Seattle, WA 98195, USA
| | - Andrew T McGuire
- Vaccine and Infectious Disease Division, Fred Hutchinson Center, Seattle, WA 98195, USA; Department of Global Health, University of Washington, Seattle, WA 98195, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - Jonathan Richard
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Marzena Pazgier
- Infectious Disease Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Pamela J Bjorkman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Walther Mothes
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA.
| | - Andrés Finzi
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada; Department of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
| | - Priti Kumar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Pradeep D Uchil
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA.
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43
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Gallerand A, Stunault MI, Merlin J, Luehmann HP, Sultan DH, Firulyova MM, Magnone V, Khedher N, Jalil A, Dolfi B, Castiglione A, Dumont A, Ayrault M, Vaillant N, Gilleron J, Barbry P, Dombrowicz D, Mack M, Masson D, Bertero T, Becher B, Williams JW, Zaitsev K, Liu Y, Guinamard RR, Yvan-Charvet L, Ivanov S. Brown adipose tissue monocytes support tissue expansion. Nat Commun 2021; 12:5255. [PMID: 34489438 PMCID: PMC8421389 DOI: 10.1038/s41467-021-25616-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 08/12/2021] [Indexed: 12/24/2022] Open
Abstract
Monocytes are part of the mononuclear phagocytic system. Monocytes play a central role during inflammatory conditions and a better understanding of their dynamics might open therapeutic opportunities. In the present study, we focused on the characterization and impact of monocytes on brown adipose tissue (BAT) functions during tissue remodeling. Single-cell RNA sequencing analysis of BAT immune cells uncovered a large diversity in monocyte and macrophage populations. Fate-mapping experiments demonstrated that the BAT macrophage pool requires constant replenishment from monocytes. Using a genetic model of BAT expansion, we found that brown fat monocyte numbers were selectively increased in this scenario. This observation was confirmed using a CCR2-binding radiotracer and positron emission tomography. Importantly, in line with their tissue recruitment, blood monocyte counts were decreased while bone marrow hematopoiesis was not affected. Monocyte depletion prevented brown adipose tissue expansion and altered its architecture. Podoplanin engagement is strictly required for BAT expansion. Together, these data redefine the diversity of immune cells in the BAT and emphasize the role of monocyte recruitment for tissue remodeling. Adipose tissue is composed of a number of adipocytes and a number of other cells including immune cells. Here the authors use single-cell sequencing of murine brown adipose tissue immune cells and describe multiple macrophage and monocyte subsets and show that monocytes contribute to brown adipose tissue expansion.
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Affiliation(s)
| | | | | | - Hannah P Luehmann
- Department of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Deborah H Sultan
- Department of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Maria M Firulyova
- Computer Technologies Department, ITMO University, Saint Petersburg, Russia
| | | | | | - Antoine Jalil
- Université Bourgogne Franche-Comté, LNC UMR1231, Dijon, France
| | | | | | | | | | | | | | - Pascal Barbry
- Université Côte d'Azur, CNRS, IPMC, Valbonne, France
| | - David Dombrowicz
- Univ.Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011-EGID, Lille, France
| | - Matthias Mack
- Department of Internal Medicine - Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - David Masson
- Université Bourgogne Franche-Comté, LNC UMR1231, Dijon, France
| | | | - Burkhard Becher
- Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Jesse W Williams
- Department of Integrative Biology and Physiology, Center for Immunology, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Konstantin Zaitsev
- Computer Technologies Department, ITMO University, Saint Petersburg, Russia
| | - Yongjian Liu
- Department of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
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44
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Regnier-Golanov AS, Dündar F, Zumbo P, Betel D, Hernandez MS, Peterson LE, Lo EH, Golanov EV, Britz GW. Hippocampal Transcriptome Changes After Subarachnoid Hemorrhage in Mice. Front Neurol 2021; 12:691631. [PMID: 34354664 PMCID: PMC8329593 DOI: 10.3389/fneur.2021.691631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/11/2021] [Indexed: 11/13/2022] Open
Abstract
After subarachnoid hemorrhage (SAH), up to 95% of surviving patients suffer from post-SAH syndrome, which includes cognitive deficits with impaired memory, executive functions, and emotional disturbances. Although these long-term cognitive deficits are thought to result from damage to temporomesial-hippocampal areas, the underlying mechanisms remain unknown. To fill this gap in knowledge, we performed a systematic RNA sequencing screen of the hippocampus in a mouse model of SAH. SAH was induced by perforation of the circle of Willis in mice. Four days later, hippocampal RNA was obtained from SAH and control (sham perforation) mice. Next-generation RNA sequencing was used to determine differentially expressed genes in the whole bilateral hippocampi remote from the SAH bleeding site. Functional analyses and clustering tools were used to define molecular pathways. Differential gene expression analysis detected 642 upregulated and 398 downregulated genes (false discovery rate <0.10) in SAH compared to Control group. Functional analyses using IPA suite, Gene Ontology terms, REACTOME pathways, and MsigDB Hallmark gene set collections revealed suppression of oligodendrocytes/myelin related genes, and overexpression of genes related to complement system along with genes associated with innate and adaptive immunity, and extracellular matrix reorganization. Interferon regulatory factors, TGF-β1, and BMP were identified as major orchestrating elements in the hippocampal tissue response. The MEME-Suite identified binding motifs of Krüppel-like factors, zinc finger transcription factors, and interferon regulatory factors as overrepresented DNA promoter motifs. This study provides the first systematic gene and pathway database of the hippocampal response after SAH. Our findings suggest that damage of the entorhinal cortex by subarachnoid blood may remotely trigger specific hippocampal responses, which include suppression of oligodendrocyte function. Identification of these novel pathways may allow for development of new therapeutic approaches for post-SAH cognitive deficits.
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Affiliation(s)
- Angelique S. Regnier-Golanov
- Laboratory of Cerebrovascular Research, Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, United States
| | - Friederike Dündar
- Applied Bioinformatics Core, Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, United States
| | - Paul Zumbo
- Applied Bioinformatics Core, Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, United States
| | - Doron Betel
- Applied Bioinformatics Core, Weill Cornell Medicine, New York, NY, United States
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
- Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY, United States
| | - Magda S. Hernandez
- Laboratory of Cerebrovascular Research, Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, United States
| | - Leif E. Peterson
- Center for Biostatistics, Houston Methodist Research Institute, Houston, TX, United States
| | - Eng H. Lo
- Laboratory of Neuroprotection Research, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, United States
| | - Eugene V. Golanov
- Laboratory of Cerebrovascular Research, Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, United States
| | - Gavin W. Britz
- Laboratory of Cerebrovascular Research, Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, United States
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45
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Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live Imaging of SARS-CoV-2 Infection in Mice Reveals Neutralizing Antibodies Require Fc Function for Optimal Efficacy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 33791699 DOI: 10.1101/2021.03.22.436337] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neutralizing antibodies (NAbs) are effective in treating COVID-19 but the mechanism of immune protection is not fully understood. Here, we applied live bioluminescence imaging (BLI) to monitor the real-time effects of NAb treatment in prophylaxis and therapy of K18-hACE2 mice intranasally infected with SARS-CoV-2-nanoluciferase. We could visualize virus spread sequentially from the nasal cavity to the lungs and thereafter systemically to various organs including the brain, which culminated in death. Highly potent NAbs from a COVID-19 convalescent subject prevented, and also effectively resolved, established infection when administered within three days. In addition to direct Fab-mediated neutralization, Fc effector interactions of NAbs with monocytes, neutrophils and natural killer cells were required to effectively dampen inflammatory responses and limit immunopathology. Our study highlights that both Fab and Fc effector functions of NAbs are essential for optimal in vivo efficacy against SARS-CoV-2.
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46
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Ben-Yehuda H, Arad M, Peralta Ramos JM, Sharon E, Castellani G, Ferrera S, Cahalon L, Colaiuta SP, Salame TM, Schwartz M. Key role of the CCR2-CCL2 axis in disease modification in a mouse model of tauopathy. Mol Neurodegener 2021; 16:39. [PMID: 34172073 PMCID: PMC8234631 DOI: 10.1186/s13024-021-00458-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 05/26/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND For decades, dementia has been characterized by accumulation of waste in the brain and low-grade inflammation. Over the years, emerging studies highlighted the involvement of the immune system in neurodegenerative disease emergence and severity. Numerous studies in animal models of amyloidosis demonstrated the beneficial role of monocyte-derived macrophages in mitigating the disease, though less is known regarding tauopathy. Boosting the immune system in animal models of both amyloidosis and tauopathy, resulted in improved cognitive performance and in a reduction of pathological manifestations. However, a full understanding of the chain of events that is involved, starting from the activation of the immune system, and leading to disease mitigation, remained elusive. Here, we hypothesized that the brain-immune communication pathway that is needed to be activated to combat tauopathy involves monocyte mobilization via the C-C chemokine receptor 2 (CCR2)/CCL2 axis, and additional immune cells, such as CD4+ T cells, including FOXP3+ regulatory CD4+ T cells. METHODS We used DM-hTAU transgenic mice, a mouse model of tauopathy, and applied an approach that boosts the immune system, via blocking the inhibitory Programmed cell death protein-1 (PD-1)/PD-L1 pathway, a manipulation previously shown to alleviate disease symptoms and pathology. An anti-CCR2 monoclonal antibody (αCCR2), was used to block the CCR2 axis in a protocol that partially eliminates monocytes from the circulation at the time of anti-PD-L1 antibody (αPD-L1) injection, and for the critical period of their recruitment into the brain following treatment. RESULTS Performance of DM-hTAU mice in short-term and working memory tasks, revealed that the beneficial effect of αPD-L1, assessed 1 month after a single injection, was abrogated following blockade of CCR2. This was accompanied by the loss of the beneficial effect on disease pathology, assessed by measurement of cortical aggregated human tau load using Homogeneous Time Resolved Fluorescence-based immunoassay, and by evaluation of hippocampal neuronal survival. Using both multiparametric flow cytometry, and Cytometry by Time Of Flight, we further demonstrated the accumulation of FOXP3+ regulatory CD4+ T cells in the brain, 12 days following the treatment, which was absent subsequent to CCR2 blockade. In addition, measurement of hippocampal levels of the T-cell chemoattractant, C-X-C motif chemokine ligand 12 (Cxcl12), and of inflammatory cytokines, revealed that αPD-L1 treatment reduced their expression, while blocking CCR2 reversed this effect. CONCLUSIONS The CCR2/CCL2 axis is required to modify pathology using PD-L1 blockade in a mouse model of tauopathy. This modification involves, in addition to monocytes, the accumulation of FOXP3+ regulatory CD4+ T cells in the brain, and the T-cell chemoattractant, Cxcl12.
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Affiliation(s)
- Hila Ben-Yehuda
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Michal Arad
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | | | - Efrat Sharon
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Giulia Castellani
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Shir Ferrera
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | - Liora Cahalon
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel
| | | | - Tomer-Meir Salame
- Flow Cytometry Unit, Life Science Core Facilities, Weizmann Institute of Science, Rehovot, Israel
| | - Michal Schwartz
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.
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Branchett WJ, Cook J, Oliver RA, Bruno N, Walker SA, Stölting H, Mack M, O'Garra A, Saglani S, Lloyd CM. Airway macrophage-intrinsic TGF-β1 regulates pulmonary immunity during early-life allergen exposure. J Allergy Clin Immunol 2021; 147:1892-1906. [PMID: 33571538 PMCID: PMC8098862 DOI: 10.1016/j.jaci.2021.01.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 01/16/2021] [Accepted: 01/22/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Early life represents a major risk window for asthma development. However, the mechanisms controlling the threshold for establishment of allergic airway inflammation in early life are incompletely understood. Airway macrophages (AMs) regulate pulmonary allergic responses and undergo TGF-β-dependent postnatal development, but the role of AM maturation factors such as TGF-β in controlling the threshold for pathogenic immune responses to inhaled allergens remains unclear. OBJECTIVE Our aim was to test the hypothesis that AM-derived TGF-β1 regulates pathogenic immunity to inhaled allergen in early life. METHODS Conditional knockout (Tgfb1ΔCD11c) mice, with TGF-β1 deficiency in AMs and other CD11c+ cells, were analyzed throughout early life and following neonatal house dust mite (HDM) inhalation. The roles of specific chemokine receptors were determined by using in vivo blocking antibodies. RESULTS AM-intrinsic TGF-β1 was redundant for initial population of the neonatal lung with AMs, but AMs from Tgfb1ΔCD11c mice failed to adopt a mature homeostatic AM phenotype in the first weeks of life. Evidence of constitutive TGF-β1 signaling was also observed in pediatric human AMs. TGF-β1-deficient AMs expressed enhanced levels of monocyte-attractant chemokines, and accordingly, Tgfb1ΔCD11c mice exposed to HDM throughout early life accumulated CCR2-dependent inflammatory CD11c+ mononuclear phagocytes into the airway niche that expressed the proallergic chemokine CCL8. Tgfb1ΔCD11c mice displayed augmented TH2, group 2 innate lymphoid cell, and airway remodeling responses to HDM, which were ameliorated by blockade of the CCL8 receptor CCR8. CONCLUSION Our results highlight a causal relationship between AM maturity, chemokines, and pathogenic immunity to environmental stimuli in early life and identify TGF-β1 as a key regulator of this.
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Affiliation(s)
- William J Branchett
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - James Cook
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom; Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, London, United Kingdom
| | - Robert A Oliver
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Nicoletta Bruno
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Simone A Walker
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Helen Stölting
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Matthias Mack
- Department of Internal Medicine II- Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Anne O'Garra
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom; Laboratory of Immunoregulation and Infection, The Francis Crick Institute, London, United Kingdom
| | - Sejal Saglani
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom; Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, London, United Kingdom
| | - Clare M Lloyd
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom.
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Recruitment and Expansion of Tregs Cells in the Tumor Environment-How to Target Them? Cancers (Basel) 2021; 13:cancers13081850. [PMID: 33924428 PMCID: PMC8069615 DOI: 10.3390/cancers13081850] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/04/2021] [Accepted: 04/08/2021] [Indexed: 12/22/2022] Open
Abstract
Simple Summary The immune response against cancer is generated by effector T cells, among them cytotoxic CD8+ T cells that destroy cancer cells and helper CD4+ T cells that mediate and support the immune response. This antitumor function of T cells is tightly regulated by a particular subset of CD4+ T cells, named regulatory T cells (Tregs), through different mechanisms. Even if the complete inhibition of Tregs would be extremely harmful due to their tolerogenic role in impeding autoimmune diseases in the periphery, the targeted blockade of their accumulation at tumor sites or their targeted depletion represent a major therapeutic challenge. This review focuses on the mechanisms favoring Treg recruitment, expansion and stabilization in the tumor microenvironment and the therapeutic strategies developed to block these mechanisms. Abstract Regulatory T cells (Tregs) are present in a large majority of solid tumors and are mainly associated with a poor prognosis, as their major function is to inhibit the antitumor immune response contributing to immunosuppression. In this review, we will investigate the mechanisms involved in the recruitment, amplification and stability of Tregs in the tumor microenvironment (TME). We will also review the strategies currently developed to inhibit Tregs’ deleterious impact in the TME by either inhibiting their recruitment, blocking their expansion, favoring their plastic transformation into other CD4+ T-cell subsets, blocking their suppressive function or depleting them specifically in the TME to avoid severe deleterious effects associated with Treg neutralization/depletion in the periphery and normal tissues.
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Li X, Chen C, Zhang L, Cheng X, Geng H, Ji Q, Li C, Chen H, Körner H, Liu X. Absence of TNF Leads to Alternative Activation in Peritoneal Macrophages in Experimental Listeria Monocytogenes Infection. Immunol Invest 2021; 51:1005-1022. [PMID: 33830841 DOI: 10.1080/08820139.2021.1902346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Macrophages are crucial effectors of innate immunity against the pathogenic bacterium Listeria monocytogenes. The pro-inflammatory cytokine tumour necrosis factor-α (TNF) has been shown to be crucial for resistance to L. monocytogenes and mice deficient in TNF signalling succumb quickly after infection. However, the mechanisms underlying TNF-mediated defence against L. monocytogenes infection have not been completely elucidated. Here, we demonstrate that TNF concurrently functions to support a pro-inflammatory M1 phenotype while actively blocking macrophage polarization to the M2 phenotype. Compared to WT mice, peritoneal macrophages in TNF-deficient mice inoculated with L. monocytogenes respond with M2 polarization by upregulating Arg1. Consistently, TNF blockade in vitro resulted in M2 polarization in peritoneal macrophages during L. monocytogenes infection. Additionally, TNF promotes the transition from M2 to M1 polarization in peritoneal macrophages. Further investigation of peritoneal macrophage polarization suggested the NF-κB pathway is involved in the TNF-dependent M2 to M1 shift. Conversely, treatment of peritoneal macrophage with a PPARγ agonist blunted the expression of M1 genes induced by TNF and reduced NF-κB signalling pathway activation. Competing signalling mechanisms therefore play an essential role in the ability of peritoneal macrophage to resolve L. monocytogenes infections with TNF playing an essential role in driving M1 polarization.Abbreviations: LPM: large peritoneal macrophage; SPM: small peritoneal macrophage; LLO: listeriolysin O; iNOS: inducible nitric oxide synthase; DCs: dendritic cells.
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Affiliation(s)
- Xinying Li
- School of Life Sciences, Anhui Medical University, Hefei, China.,Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.,Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chen Chen
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Lianjun Zhang
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Xiaomin Cheng
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Huiwu Geng
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Qiang Ji
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Chao Li
- School of Life Sciences, Anhui Medical University, Hefei, China
| | - Huili Chen
- Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Heinrich Körner
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia.,Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Xiaoying Liu
- School of Life Sciences, Anhui Medical University, Hefei, China.,Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
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Earnest JT, Holmes AC, Basore K, Mack M, Fremont DH, Diamond MS. The mechanistic basis of protection by non-neutralizing anti-alphavirus antibodies. Cell Rep 2021; 35:108962. [PMID: 33826892 PMCID: PMC8055377 DOI: 10.1016/j.celrep.2021.108962] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/19/2021] [Accepted: 03/16/2021] [Indexed: 12/22/2022] Open
Abstract
Although neutralizing monoclonal antibodies (mAbs) against epitopes within the alphavirus E2 protein can protect against infection, the functional significance of non-neutralizing mAbs is poorly understood. Here, we evaluate the activity of 13 non-neutralizing mAbs against Mayaro virus (MAYV), an emerging arthritogenic alphavirus. These mAbs bind to the MAYV virion and surface of infected cells but fail to neutralize infection in cell culture. Mapping studies identify six mAb binding groups that localize to discrete epitopes within or adjacent to the A domain of the E2 glycoprotein. Remarkably, passive transfer of non-neutralizing mAbs protects against MAYV infection and disease in mice, and their efficacy requires Fc effector functions. Monocytes mediate the protection of non-neutralizing mAbs in vivo, as Fcγ-receptor-expressing myeloid cells facilitate the binding, uptake, and clearance of MAYV without antibody-dependent enhancement of infection. Humoral protection against alphaviruses likely reflects contributions from non-neutralizing antibodies through Fc-dependent mechanisms that accelerate viral clearance.
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Affiliation(s)
- James T Earnest
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Autumn C Holmes
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Katherine Basore
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Matthias Mack
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - Daved H Fremont
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Michael S Diamond
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA; The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine. St. Louis, MO 63110, USA.
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