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Redmer T, Raigel M, Sternberg C, Ziegler R, Probst C, Lindner D, Aufinger A, Limberger T, Trachtova K, Kodajova P, Högler S, Schlederer M, Stoiber S, Oberhuber M, Bolis M, Neubauer HA, Miranda S, Tomberger M, Harbusch NS, Garces de Los Fayos Alonso I, Sternberg F, Moriggl R, Theurillat JP, Tichy B, Bystry V, Persson JL, Mathas S, Aberger F, Strobl B, Pospisilova S, Merkel O, Egger G, Lagger S, Kenner L. JUN mediates the senescence associated secretory phenotype and immune cell recruitment to prevent prostate cancer progression. Mol Cancer 2024; 23:114. [PMID: 38811984 PMCID: PMC11134959 DOI: 10.1186/s12943-024-02022-x] [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: 11/29/2023] [Accepted: 05/10/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Prostate cancer develops through malignant transformation of the prostate epithelium in a stepwise, mutation-driven process. Although activator protein-1 transcription factors such as JUN have been implicated as potential oncogenic drivers, the molecular programs contributing to prostate cancer progression are not fully understood. METHODS We analyzed JUN expression in clinical prostate cancer samples across different stages and investigated its functional role in a Pten-deficient mouse model. We performed histopathological examinations, transcriptomic analyses and explored the senescence-associated secretory phenotype in the tumor microenvironment. RESULTS Elevated JUN levels characterized early-stage prostate cancer and predicted improved survival in human and murine samples. Immune-phenotyping of Pten-deficient prostates revealed high accumulation of tumor-infiltrating leukocytes, particularly innate immune cells, neutrophils and macrophages as well as high levels of STAT3 activation and IL-1β production. Jun depletion in a Pten-deficient background prevented immune cell attraction which was accompanied by significant reduction of active STAT3 and IL-1β and accelerated prostate tumor growth. Comparative transcriptome profiling of prostate epithelial cells revealed a senescence-associated gene signature, upregulation of pro-inflammatory processes involved in immune cell attraction and of chemokines such as IL-1β, TNF-α, CCL3 and CCL8 in Pten-deficient prostates. Strikingly, JUN depletion reversed both the senescence-associated secretory phenotype and senescence-associated immune cell infiltration but had no impact on cell cycle arrest. As a result, JUN depletion in Pten-deficient prostates interfered with the senescence-associated immune clearance and accelerated tumor growth. CONCLUSIONS Our results suggest that JUN acts as tumor-suppressor and decelerates the progression of prostate cancer by transcriptional regulation of senescence- and inflammation-associated genes. This study opens avenues for novel treatment strategies that could impede disease progression and improve patient outcomes.
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Affiliation(s)
- Torben Redmer
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria.
| | - Martin Raigel
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, 1090, Austria
| | - Christina Sternberg
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Biochemical Institute, University of Kiel, Kiel, 24098, Germany
| | - Roman Ziegler
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Cell Biology, Charles University, Prague, Czech Republic and Biotechnology and Biomedicine Centre of the Academy of Sciences and Charles University (BIOCEV), Vestec u Prahy, Czech Republic
| | - Clara Probst
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, 1090, Austria
| | - Desiree Lindner
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, 1090, Austria
| | - Astrid Aufinger
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
| | - Tanja Limberger
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Center for Biomarker Research in Medicine (CBmed) Vienna, Core-Lab2, Medical University of Vienna, Vienna, 1090, Austria
| | - Karolina Trachtova
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, 1090, Austria
- CEITEC-Central European Institute of Technology, Masaryk University, Brno, 625 00, Czech Republic
| | - Petra Kodajova
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Sandra Högler
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Michaela Schlederer
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
| | - Stefan Stoiber
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
- Department of Biomedical Imaging and Image-Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, 1090, Austria
- Christian Doppler Laboratory for Applied Metabolomics, Medical University of Vienna, Vienna, 1090, Austria
| | - Monika Oberhuber
- Center for Biomarker Research in Medicine, CBmed GmbH, Graz, 8010, Austria
| | - Marco Bolis
- Institute of Oncology Research, Bellinzona and Faculty of Biomedical Sciences, USI, Lugano, 6500, TI, Switzerland
- Computational Oncology Unit, Department of Oncology, Istituto di Richerche Farmacologiche 'Mario Negri' IRCCS, Milano, 20156, Italy
- Bioinformatics Core Unit, Swiss Institute of Bioinformatics, Bellinzona, 6500, TI, Switzerland
| | - Heidi A Neubauer
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Institute of Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Sara Miranda
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Martina Tomberger
- Center for Biomarker Research in Medicine, CBmed GmbH, Graz, 8010, Austria
| | - Nora S Harbusch
- Center for Biomarker Research in Medicine, CBmed GmbH, Graz, 8010, Austria
| | - Ines Garces de Los Fayos Alonso
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
| | - Felix Sternberg
- Institute of Physiology, Pathophysiology and Biophysics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Vienna, 1090, Austria
| | - Richard Moriggl
- Department of Biosciences and Medical Biology, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Salzburg, 5020, Austria
| | - Jean-Philippe Theurillat
- Institute of Oncology Research, Bellinzona and Faculty of Biomedical Sciences, USI, Lugano, 6500, TI, Switzerland
| | - Boris Tichy
- CEITEC-Central European Institute of Technology, Masaryk University, Brno, 625 00, Czech Republic
| | - Vojtech Bystry
- CEITEC-Central European Institute of Technology, Masaryk University, Brno, 625 00, Czech Republic
| | - Jenny L Persson
- Department of Molecular Biology, Umeå University, Umeå, 901 87, Sweden
- Department of Biomedical Sciences, Malmö Universitet, Malmö, 206 06, Sweden
| | - Stephan Mathas
- Charité-Universitätsmedizin Berlin, Hematology, Oncology and Tumor Immunology, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, 10117, Germany
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Group Biology of Malignant Lymphomas, Berlin, 13125, Germany
- Experimental and Clinical Research Center (ECRC), a cooperation between the MDC and the Charité, Berlin, Germany
| | - Fritz Aberger
- Department of Biosciences and Medical Biology, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Salzburg, 5020, Austria
| | - Birgit Strobl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Sarka Pospisilova
- CEITEC-Central European Institute of Technology, Masaryk University, Brno, 625 00, Czech Republic
| | - Olaf Merkel
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
| | - Gerda Egger
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria
| | - Sabine Lagger
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria.
| | - Lukas Kenner
- Unit of Laboratory Animal Pathology, University of Veterinary Medicine Vienna, Vienna, 1210, Austria.
- Department of Pathology, Medical University of Vienna, Vienna, 1090, Austria.
- Christian Doppler Laboratory for Applied Metabolomics, Medical University of Vienna, Vienna, 1090, Austria.
- Center for Biomarker Research in Medicine, CBmed GmbH, Graz, 8010, Austria.
- Comprehensive Cancer Center, Medical University Vienna, Vienna, 1090, Austria.
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Lin H, Liu C, Hu A, Zhang D, Yang H, Mao Y. Understanding the immunosuppressive microenvironment of glioma: mechanistic insights and clinical perspectives. J Hematol Oncol 2024; 17:31. [PMID: 38720342 PMCID: PMC11077829 DOI: 10.1186/s13045-024-01544-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 04/10/2024] [Indexed: 05/12/2024] Open
Abstract
Glioblastoma (GBM), the predominant and primary malignant intracranial tumor, poses a formidable challenge due to its immunosuppressive microenvironment, thereby confounding conventional therapeutic interventions. Despite the established treatment regimen comprising surgical intervention, radiotherapy, temozolomide administration, and the exploration of emerging modalities such as immunotherapy and integration of medicine and engineering technology therapy, the efficacy of these approaches remains constrained, resulting in suboptimal prognostic outcomes. In recent years, intensive scrutiny of the inhibitory and immunosuppressive milieu within GBM has underscored the significance of cellular constituents of the GBM microenvironment and their interactions with malignant cells and neurons. Novel immune and targeted therapy strategies have emerged, offering promising avenues for advancing GBM treatment. One pivotal mechanism orchestrating immunosuppression in GBM involves the aggregation of myeloid-derived suppressor cells (MDSCs), glioma-associated macrophage/microglia (GAM), and regulatory T cells (Tregs). Among these, MDSCs, though constituting a minority (4-8%) of CD45+ cells in GBM, play a central component in fostering immune evasion and propelling tumor progression, angiogenesis, invasion, and metastasis. MDSCs deploy intricate immunosuppressive mechanisms that adapt to the dynamic tumor microenvironment (TME). Understanding the interplay between GBM and MDSCs provides a compelling basis for therapeutic interventions. This review seeks to elucidate the immune regulatory mechanisms inherent in the GBM microenvironment, explore existing therapeutic targets, and consolidate recent insights into MDSC induction and their contribution to GBM immunosuppression. Additionally, the review comprehensively surveys ongoing clinical trials and potential treatment strategies, envisioning a future where targeting MDSCs could reshape the immune landscape of GBM. Through the synergistic integration of immunotherapy with other therapeutic modalities, this approach can establish a multidisciplinary, multi-target paradigm, ultimately improving the prognosis and quality of life in patients with GBM.
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Affiliation(s)
- Hao Lin
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
- National Center for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai Clinical Medical Center of Neurosurgery, Neurosurgical Institute of Fudan University, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Chaxian Liu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
- National Center for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai Clinical Medical Center of Neurosurgery, Neurosurgical Institute of Fudan University, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Ankang Hu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
- National Center for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai Clinical Medical Center of Neurosurgery, Neurosurgical Institute of Fudan University, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Duanwu Zhang
- Children's Hospital of Fudan University, and Shanghai Key Laboratory of Medical Epigenetics, International Co-Laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, People's Republic of China.
| | - Hui Yang
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, People's Republic of China.
- Institute for Translational Brain Research, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
- National Center for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai Clinical Medical Center of Neurosurgery, Neurosurgical Institute of Fudan University, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, People's Republic of China.
- National Center for Neurological Disorders, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
- Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration, Shanghai Clinical Medical Center of Neurosurgery, Neurosurgical Institute of Fudan University, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.
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Yao Y, Yang L, Zhang Z, Wang B, Feng B, Liu Z. Identification of Targets for Subsequent Treatment of Crohn's Disease Patients After Failure of Anti-TNF Therapy. J Inflamm Res 2023; 16:4617-4631. [PMID: 37868830 PMCID: PMC10590116 DOI: 10.2147/jir.s422881] [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: 05/25/2023] [Accepted: 09/20/2023] [Indexed: 10/24/2023] Open
Abstract
Background Anti-TNF medications are the first-line treatment for Crohn's Disease (CD), despite the fact that a significant portion of the population continues to be ineffectively treated. This research aims to discover accurate intervention targets for the follow-up of anti-TNF non-responders using bioinformatics technology. Methods GSE16879, GSE111761, and GSE52746 retrieved from the GEO database. Unbiased differentially expressed genes (DEGs) were discovered utilizing the limma and RobustRankAggreg (RRA) tools. Then, we used weighted gene co-expression network analysis (WGCNA) to identify the module most strongly associated with non responders and subjected this module to Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) enrichment analysis with overlapping genes of the DEGs. GSEA analysis applied to check the results of GO and KEGG. Using the Cytoscape program, the protein-protein interaction (PPI) network was constructed. The software's MCODE addon and CytoHubba addon was used to find the most important modules and the hub genes. Subsequently, we employed reverse transcription-polymerase chain reaction (RT-PCR) to confirm hub gene expression from mucosal biopsy specimens. Results There were a total of 142 genes co-upregulated and 65 genes co-downregulated. According to the WGCNA analysis, 42 genes were duplicated inside the light cyan module. GO and KEGG enrichment analyses of overlapped genes in nonresponders demonstrated an increase in the expression of genes associated with inflammation and immune response, consistent with GSEA results. The PPI network was constructed using 41 protein nodes and 177 edges. After validation, 8 of the top 10 genes were verified to be differentially expressed. Conclusion Our investigation is the first to integrate three CD databases after the anti-TNF medication treatment. We identified IL1B, CCL4, CXCL1, CXCL10, CCL3, CSF3, TREM1, and IL1RN as potential therapeutic targets for patients whose anti-TNF treatment failed.
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Affiliation(s)
- Yao Yao
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Liu Yang
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Zhe Zhang
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Binbin Wang
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Baisui Feng
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
| | - Zhanju Liu
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, People’s Republic of China
- Department of Gastroenterology, the Shanghai Tenth People’s Hospital of Tongji University, Shanghai, 200072, People’s Republic of China
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Singh J, Boettcher M, Dölling M, Heuer A, Hohberger B, Leppkes M, Naschberger E, Schapher M, Schauer C, Schoen J, Stürzl M, Vitkov L, Wang H, Zlatar L, Schett GA, Pisetsky DS, Liu ML, Herrmann M, Knopf J. Moonlighting chromatin: when DNA escapes nuclear control. Cell Death Differ 2023; 30:861-875. [PMID: 36755071 PMCID: PMC9907214 DOI: 10.1038/s41418-023-01124-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/05/2022] [Accepted: 09/12/2022] [Indexed: 02/10/2023] Open
Abstract
Extracellular chromatin, for example in the form of neutrophil extracellular traps (NETs), is an important element that propels the pathological progression of a plethora of diseases. DNA drives the interferon system, serves as autoantigen, and forms the extracellular scaffold for proteins of the innate immune system. An insufficient clearance of extruded chromatin after the release of DNA from the nucleus into the extracellular milieu can perform a secret task of moonlighting in immune-inflammatory and occlusive disorders. Here, we discuss (I) the cellular events involved in the extracellular release of chromatin and NET formation, (II) the devastating consequence of a dysregulated NET formation, and (III) the imbalance between NET formation and clearance. We include the role of NET formation in the occlusion of vessels and ducts, in lung disease, in autoimmune diseases, in chronic oral disorders, in cancer, in the formation of adhesions, and in traumatic spinal cord injury. To develop effective therapies, it is of utmost importance to target pathways that cause decondensation of chromatin during exaggerated NET formation and aggregation. Alternatively, therapies that support the clearance of extracellular chromatin are conceivable.
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Affiliation(s)
- Jeeshan Singh
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Boettcher
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Maximilian Dölling
- Department of Surgery, University Hospital Magdeburg, Magdeburg, Germany
| | - Annika Heuer
- Division of Spine Surgery, Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany
- Mildred-Scheel Cancer Career Center Hamburg HaTriCS4, University Cancer Center Hamburg, Hamburg, Germany
| | - Bettina Hohberger
- Department of Ophthalmology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Moritz Leppkes
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Internal Medicine 1, Gastroenterology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universtität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mirco Schapher
- Department of Otorhinolaryngology, Head and Neck Surgery, Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Otorhinolaryngology, Head and Neck Surgery, Paracelsus University, Nürnberg, Germany
| | - Christine Schauer
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Janina Schoen
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander Universtität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ljubomir Vitkov
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, Homburg, Germany
- Department of Environment & Biodiversity, University of Salzburg, Salzburg, 5020, Austria
- Department of Dental Pathology, University of East Sarajevo, East Sarajevo, Republic of Srpska, Bosnia and Herzegovina
| | - Han Wang
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Leticija Zlatar
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Georg A Schett
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - David S Pisetsky
- Department of Medicine and Immunology and Medical Research Service, Duke University Medical Center and Veterans Administration Medical Center, Durham, NC, USA
| | - Ming-Lin Liu
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Corporal Michael J. Crescenz VAMC, Philadelphia, PA, 19104, USA
| | - Martin Herrmann
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany.
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany.
| | - Jasmin Knopf
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
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Targeting tumour-reprogrammed myeloid cells: the new battleground in cancer immunotherapy. Semin Immunopathol 2022; 45:163-186. [PMID: 36161514 PMCID: PMC9513014 DOI: 10.1007/s00281-022-00965-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/13/2022] [Indexed: 11/08/2022]
Abstract
Tumour microenvironment is a complex ecosystem in which myeloid cells are the most abundant immune elements. This cell compartment is composed by different cell types, including neutrophils, macrophages, dendritic cells, and monocytes but also unexpected cell populations with immunosuppressive and pro-tumour roles. Indeed, the release of tumour-derived factors influences physiological haematopoiesis producing unconventional cells with immunosuppressive and tolerogenic functions such as myeloid-derived suppressor cells. These pro-tumour myeloid cell populations not only support immune escape directly but also assist tumour invasion trough non-immunological activities. It is therefore not surprising that these cell subsets considerably impact in tumour progression and cancer therapy resistance, including immunotherapy, and are being investigated as potential targets for developing a new era of cancer therapy. In this review, we discuss emerging strategies able to modulate the functional activity of these tumour-supporting myeloid cells subverting their accumulation, recruitment, survival, and functions. These innovative approaches will help develop innovative, or improve existing, cancer treatments.
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Yuan X, Xiong Z, Liu W, Li Y, Li H, Zhang X, Yin Y, Xu P, Cao J, Chen D, Song Z. Novel Therapeutic Targeting of CCL3-CCR4 Axis Mediated Apoptotic Intesitnal Injury in Necrotizing Enterocolitis. Front Immunol 2022; 13:859398. [PMID: 35529858 PMCID: PMC9073010 DOI: 10.3389/fimmu.2022.859398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/30/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundNecrotizing enterocolitis (NEC) is the leading cause of neonatal gastrointestinal-related death, while the etiology and pathogenesis are poorly understood.MethodsThe levels of CCL3 in intestinal tissue from modeling mice and patients were measured and analyzed. HE staining, TUNEL, Annexin and FCM were used to assess pathological changes and apoptosis in intestinal tissue and epithelial cells. CCL3, CCR4, cytokines, tight junction protein ZO-1, apoptosis-related genes and ERK1/2-NF-κB signaling pathway were detected by ELISA, Q-PCR, Western blotting and immunofluorescence.ResultsCCL3 levels in the intestinal tissue significantly elevated in patients with NEC and mouse models. Blockade of CCL3 significantly alleviated NEC-related intestinal tissue damage, while administration of recombinant CCL3 aggravated intestinal injury by exacerbating intestinal epithelial cell apoptosis in NEC mice. Importantly, CCR4 blockade reversed CCL3-mediated damage to intestinal tissue and intestinal epithelial cell apoptosis both in vivo and in vitro. Further mechanistic studies showed that CCL3 regulated apoptosis-related BAX/BCL-2 expression through the activation of the ERK1/2 and NF-κB pathways, which could be reversed by anti-CCR4 treatment. Furthermore, ERK1/2 inhibition reduced CCL3-mediated phosphorylation of NF-κB in IEC-6 cells, while inhibition of NF-κB had no obvious effect on ERK1/2 phosphorylation. As expected, inhibition of NF-κB regulated BAX/BCL-2 expression and alleviated CCL3-induced epithelial cell apoptosis. These results indicate that high expression of CCL3 in NEC lesions promotes intestinal epithelial apoptosis through the CCL3-CCR4-ERK1/2-NFκB-BAX/BCL2 signalling axis, thereby exacerbating NEC-related intestinal injury.ConclusionsOur study represents an important conceptual advance that CCL3 may be one of the key culprits of intestinal tissue damage in NEC patients, and blocking either CCL3, CCR4, or NF-κB may represent a novel effective immunotherapy for NEC.
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Affiliation(s)
- Xi Yuan
- Department of Clinical Laboratory, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Zihan Xiong
- Department of Clinical Laboratory, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Liu
- Department of Gastrointestinal and Neonatal Surgery, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Yue Li
- Molecular Medicine and Cancer Research Center, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Hongdong Li
- Department of Emergency Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Xuemei Zhang
- Department of Laboratory Medicine, Key Laboratory of Diagnostic Medicine, Chongqing Medical University, Chongqing, China
| | - Yibing Yin
- Department of Laboratory Medicine, Key Laboratory of Diagnostic Medicine, Chongqing Medical University, Chongqing, China
| | - Pingyong Xu
- Department of Clinical Laboratory, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Key Laboratory of RNA Biology, National Laboratory of Biomacromolecules, Chinese Academy of Sciences (CAS) Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Ju Cao
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dapeng Chen
- Department of Clinical Laboratory, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Zhixin Song, ; Dapeng Chen,
| | - Zhixin Song
- Department of Clinical Laboratory, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children’s Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Zhixin Song, ; Dapeng Chen,
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7
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Park K, Veena MS, Shin DS. Key Players of the Immunosuppressive Tumor Microenvironment and Emerging Therapeutic Strategies. Front Cell Dev Biol 2022; 10:830208. [PMID: 35345849 PMCID: PMC8957227 DOI: 10.3389/fcell.2022.830208] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/14/2022] [Indexed: 12/14/2022] Open
Abstract
The tumor microenvironment (TME) is a complex, dynamic battlefield for both immune cells and tumor cells. The advent of the immune checkpoint inhibitors (ICI) since 2011, such as the anti-cytotoxic T-lymphocyte associated protein (CTLA)-4 and anti-programmed cell death receptor (PD)-(L)1 antibodies, provided powerful weapons in the arsenal of cancer treatments, demonstrating unprecedented durable responses for patients with many types of advanced cancers. However, the response rate is generally low across tumor types and a substantial number of patients develop acquired resistance. These primary or acquired resistance are attributed to various immunosuppressive elements (soluble and cellular factors) and alternative immune checkpoints in the TME. Therefore, a better understanding of the TME is absolutely essential to develop therapeutic strategies to overcome resistance. Numerous clinical studies are underway using ICIs and additional agents that are tailored to the characteristics of the tumor or the TME. Some of the combination treatments are already approved by the Food and Drug Administration (FDA), such as platinum-doublet chemotherapy, tyrosine kinase inhibitor (TKI) -targeting vascular endothelial growth factor (VEGF) combined with anti-PD-(L)1 antibodies or immuno-immuno combinations (anti-CTLA-4 and anti-PD-1). In this review, we will discuss the key immunosuppressive cells, metabolites, cytokines or chemokines, and hypoxic conditions in the TME that contribute to tumor immune escape and the prospect of relevant clinical trials by targeting these elements in combination with ICIs.
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Affiliation(s)
- Kevin Park
- Department of Medicine, Division of Hematology/Oncology, Los Angeles, CA, United States.,VA Greater Los Angeles Healthcare System, University of California, Los Angeles (UCLA), Los Angeles, CA, United States
| | - Mysore S Veena
- Department of Medicine, Division of Hematology/Oncology, Los Angeles, CA, United States.,VA Greater Los Angeles Healthcare System, University of California, Los Angeles (UCLA), Los Angeles, CA, United States
| | - Daniel Sanghoon Shin
- Department of Medicine, Division of Hematology/Oncology, Los Angeles, CA, United States.,VA Greater Los Angeles Healthcare System, University of California, Los Angeles (UCLA), Los Angeles, CA, United States.,Molecular Biology Institute, Los Angeles, CA, United States.,Jonsson Comprehensive Cancer Center, Los Angeles, CA, United States
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8
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Sagawa T, Honda A, Ishikawa R, Miyasaka N, Nagao M, Akaji S, Kida T, Tsujikawa T, Yoshida T, Kawahito Y, Takano H. Role of necroptosis of alveolar macrophages in acute lung inflammation of mice exposed to titanium dioxide nanoparticles. Nanotoxicology 2022; 15:1312-1330. [PMID: 35000540 DOI: 10.1080/17435390.2021.2022231] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Titanium dioxide (TiO2) nanoparticles are indispensable for daily life but induce acute inflammation, mainly via inhalation exposure. TiO2 nanoparticles can be phagocytosed by alveolar macrophages (AMs) in vivo and cause necroptosis of exposed cells in vitro. However, the relationship between localization of TiO2 nanoparticles in the lungs after exposure and their biological responses including cell death and inflammation remains unclear. This study was conducted to investigate the intra/extracellular localization of TiO2 nanoparticles in murine lungs at 24 h after intratracheal exposure to rutile TiO2 nanoparticles and subsequent local biological reactions, specifically necroptosis of AMs and lung inflammation. We found that TiO2 exposure induced leukocyte migration into the alveolar region and increased the secretion of C-C motif ligand (CCL) 3 in the bronchoalveolar lavage (BAL) fluid. A combination of Raman spectroscopy and staining of cell and tissue samples confirmed that AMs phagocytose TiO2. AMs that phagocytosed TiO2 nanoparticles showed necroptosis, characterized by the expression of phosphorylated mixed lineage kinase domain-like protein and translocation of high mobility group box-1 from the cell nucleus to the cytoplasm. In primary cultured AMs, TiO2 also induced necroptosis and increased the secretion of CCL3. Necroptosis inhibitors suppressed the increase in CCL3 secretion in both the BAL fluid and culture supernatant of AMs and suppressed the increase in leukocytes in the BAL fluid. These data suggest that necroptosis of AMs that phagocytose TiO2 nanoparticles is involved as part of the mechanism by which TiO2 induces acute lung inflammation.
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Affiliation(s)
- Tomoya Sagawa
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akiko Honda
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Raga Ishikawa
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Natsuko Miyasaka
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Megumi Nagao
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
| | - Sakiko Akaji
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Takashi Kida
- Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahiro Tsujikawa
- Department of Otolaryngology - Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tatsushi Yoshida
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yutaka Kawahito
- Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirohisa Takano
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Graduate School of Global Environmental Studies, Kyoto University, Kyoto, Japan
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9
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Seibold T, Schönfelder J, Weeber F, Lechel A, Armacki M, Waldenmaier M, Wille C, Palmer A, Halbgebauer R, Karasu E, Huber‐Lang M, Kalbitz M, Radermacher P, Paschke S, Seufferlein T, Eiseler T. Small Extracellular Vesicles Propagate the Inflammatory Response After Trauma. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102381. [PMID: 34713625 PMCID: PMC8693079 DOI: 10.1002/advs.202102381] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/20/2021] [Indexed: 05/03/2023]
Abstract
Trauma is the leading cause of death in individuals under 44 years of age. Thorax trauma (TxT) is strongly associated with trauma-related death, an unbalanced innate immune response, sepsis, acute respiratory distress syndrome, and multiple organ dysfunction. It is shown that different in vivo traumata, such as TxT or an in vitro polytrauma cytokine cocktail trigger secretion of small extracellular nanovesicles (sEVs) from endothelial cells with pro-inflammatory cargo. These sEVs transfer transcripts for ICAM-1, VCAM-1, E-selectin, and cytokines to systemically activate the endothelium, facilitate neutrophil-endothelium interactions, and destabilize barrier integrity. Inhibition of sEV-release after TxT in mice ameliorates local as well as systemic inflammation, neutrophil infiltration, and distant organ damage in kidneys (acute kidney injury, AKI). Vice versa, injection of TxT-plasma-sEVs into healthy animals is sufficient to trigger pulmonary and systemic inflammation as well as AKI. Accordingly, increased sEV concentrations and transfer of similar cargos are observed in polytrauma patients, suggesting a fundamental pathophysiological mechanism.
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Affiliation(s)
- Tanja Seibold
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Jonathan Schönfelder
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Florian Weeber
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - André Lechel
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Milena Armacki
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Mareike Waldenmaier
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Christoph Wille
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Annette Palmer
- Institute of Clinical and Experimental Trauma‐ImmunologyUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Rebecca Halbgebauer
- Institute of Clinical and Experimental Trauma‐ImmunologyUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Ebru Karasu
- Institute of Clinical and Experimental Trauma‐ImmunologyUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Markus Huber‐Lang
- Institute of Clinical and Experimental Trauma‐ImmunologyUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Miriam Kalbitz
- Department of TraumatologyHandPlastic and Reconstructive SurgeryUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Peter Radermacher
- Institute of Anesthesiological Pathophysiology and Process EngineeringUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Stephan Paschke
- Department of General and Visceral SurgeryUniversity HospitalAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Thomas Seufferlein
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
| | - Tim Eiseler
- Department of Internal Medicine IUniversity Hospital UlmAlbert‐Einstein‐Allee 23Ulm89081Germany
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10
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Rappe JC, Finsterbusch K, Crotta S, Mack M, Priestnall SL, Wack A. A TLR7 antagonist restricts interferon-dependent and -independent immunopathology in a mouse model of severe influenza. J Exp Med 2021; 218:e20201631. [PMID: 34473195 PMCID: PMC8421264 DOI: 10.1084/jem.20201631] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 07/16/2021] [Accepted: 08/16/2021] [Indexed: 11/04/2022] Open
Abstract
Cytokine-mediated immune-cell recruitment and inflammation contribute to protection in respiratory virus infection. However, uncontrolled inflammation and the "cytokine storm" are hallmarks of immunopathology in severe infection. Cytokine storm is a broad term for a phenomenon with diverse characteristics and drivers, depending on host genetics, age, and other factors. Taking advantage of the differential use of virus-sensing systems by different cell types, we test the hypothesis that specifically blocking TLR7-dependent, immune cell-produced cytokines reduces influenza-related immunopathology. In a mouse model of severe influenza characterized by a type I interferon (IFN-I)-driven cytokine storm, TLR7 antagonist treatment leaves epithelial antiviral responses unaltered but acts through pDCs and monocytes to reduce IFN-I and other cytokines in the lung, thus ameliorating inflammation and severity. Moreover, even in the absence of IFN-I signaling, TLR7 antagonism reduces inflammation and mortality driven by monocyte-produced chemoattractants and neutrophil recruitment into the infected lung. Hence, TLR7 antagonism reduces diverse types of cytokine storm in severe influenza.
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Affiliation(s)
- Julie C.F. Rappe
- Immunoregulation Laboratory, Francis Crick Institute, London, UK
| | | | - Stefania Crotta
- Immunoregulation Laboratory, Francis Crick Institute, London, UK
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, Regensburg, Germany
| | - Simon L. Priestnall
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Hatfield, UK
- Experimental Histopathology Science Technology Platform, The Francis Crick Institute, London, UK
| | - Andreas Wack
- Immunoregulation Laboratory, Francis Crick Institute, London, UK
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11
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Ahmed IA, Jaffa MA, Moussa M, Hatem D, El-Achkar GA, Al Sayegh R, Karam M, Hamade E, Habib A, Jaffa AA. Plasma Kallikrein as a Modulator of Liver Injury/Remodeling. Front Pharmacol 2021; 12:715111. [PMID: 34566641 PMCID: PMC8458624 DOI: 10.3389/fphar.2021.715111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022] Open
Abstract
The occurrence and persistence of hepatic injury which arises from cell death and inflammation result in liver disease. The processes that lead to liver injury progression and resolution are still not fully delineated. The plasma kallikrein-kinin system (PKKS) has been shown to play diverse functions in coagulation, tissue injury, and inflammation, but its role in liver injury has not been defined yet. In this study, we have characterized the role of the PKKS at various stages of liver injury in mice, as well as the direct effects of plasma kallikrein on human hepatocellular carcinoma cell line (HepG2). Histological, immunohistochemical, and gene expression analyses were utilized to assess cell injury on inflammatory and fibrotic factors. Acute liver injury triggered by carbon tetrachloride (CCl4) injection resulted in significant upregulation of the plasma kallikrein gene (Klkb1) and was highly associated with the high mobility group box 1 gene, the marker of cell death (r = 0.75, p < 0.0005, n = 7). In addition, increased protein expression of plasma kallikrein was observed as clusters around necrotic areas. Plasma kallikrein treatment significantly increased the proliferation of CCl4-induced HepG2 cells and induced a significant increase in the gene expression of the thrombin receptor (protease activated receptor-1), interleukin 1 beta, and lectin–galactose binding soluble 3 (galectin-3) (p < 0.05, n = 4). Temporal variations in the stages of liver fibrosis were associated with an increase in the mRNA levels of bradykinin receptors: beta 1 and 2 genes (p < 0.05; n = 3–10). In conclusion, these findings indicate that plasma kallikrein may play diverse roles in liver injury, inflammation, and fibrosis, and suggest that plasma kallikrein may be a target for intervention in the states of liver injury.
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Affiliation(s)
- Ibrahim A Ahmed
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon
| | - Miran A Jaffa
- Epidemiology and Population Health Department, Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon
| | - Mayssam Moussa
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon
| | - Duaa Hatem
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon.,Section of Pharmacology, Department of Bioethics and Safety, Catholic University, Rome, Italy
| | - Ghewa A El-Achkar
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon
| | - Rola Al Sayegh
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon.,INSERM-UMR1149, Centre de Recherche sur l'Inflammation, and Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Universite de Paris, Paris, France
| | - Mia Karam
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon.,Biomedical Engineering Program, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon
| | - Eva Hamade
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Beirut, Lebanon
| | - Aida Habib
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon.,INSERM-UMR1149, Centre de Recherche sur l'Inflammation, and Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Universite de Paris, Paris, France
| | - Ayad A Jaffa
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, Beirut, Lebanon
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12
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A peripheral inflammatory signature discriminates bipolar from unipolar depression: A machine learning approach. Prog Neuropsychopharmacol Biol Psychiatry 2021; 105:110136. [PMID: 33045321 DOI: 10.1016/j.pnpbp.2020.110136] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/04/2020] [Accepted: 10/06/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Mood disorders (major depressive disorder, MDD, and bipolar disorder, BD) are considered leading causes of life-long disability worldwide, where high rates of no response to treatment or relapse and delays in receiving a proper diagnosis (~60% of depressed BD patients are initially misdiagnosed as MDD) contribute to a growing personal and socio-economic burden. The immune system may represent a new target to develop novel diagnostic and therapeutic procedures but reliable biomarkers still need to be found. METHODS In our study we predicted the differential diagnosis of mood disorders by considering the plasma levels of 54 cytokines, chemokines and growth factors of 81 BD and 127 MDD depressed patients. Clinical diagnoses were predicted also against 32 healthy controls. Elastic net models, including 5000 non-parametric bootstrapping procedure and inner and outer 10-fold nested cross-validation were performed in order to identify the signatures for the disorders. RESULTS Results showed that the immune-inflammatory signature classifies the two disorders with a high accuracy (AUC = 97%), specifically 92% and 86% respectively for MDD and BD. MDD diagnosis was predicted by high levels of markers related to both pro-inflammatory (i.e. IL-1β, IL-6, IL-7, IL-16) and regulatory responses (IL-2, IL-4, and IL-10), whereas BD by high levels of inflammatory markers (CCL3, CCL4, CCL5, CCL11, CCL25, CCL27, CXCL11, IL-9 and TNF-α). CONCLUSIONS Our findings provide novel tools for early diagnosis of BD, strengthening the impact of biomarkers research into clinical practice, and new insights for the development of innovative therapeutic strategies for depressive disorders.
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13
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Vaghela R, Arkudas A, Horch RE, Hessenauer M. Actually Seeing What Is Going on - Intravital Microscopy in Tissue Engineering. Front Bioeng Biotechnol 2021; 9:627462. [PMID: 33681162 PMCID: PMC7925911 DOI: 10.3389/fbioe.2021.627462] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 01/26/2021] [Indexed: 12/21/2022] Open
Abstract
Intravital microscopy (IVM) study approach offers several advantages over in vitro, ex vivo, and 3D models. IVM provides real-time imaging of cellular events, which provides us a comprehensive picture of dynamic processes. Rapid improvement in microscopy techniques has permitted deep tissue imaging at a higher resolution. Advances in fluorescence tagging methods enable tracking of specific cell types. Moreover, IVM can serve as an important tool to study different stages of tissue regeneration processes. Furthermore, the compatibility of different tissue engineered constructs can be analyzed. IVM is also a promising approach to investigate host reactions on implanted biomaterials. IVM can provide instant feedback for improvising tissue engineering strategies. In this review, we aim to provide an overview of the requirements and applications of different IVM approaches. First, we will discuss the history of IVM development, and then we will provide an overview of available optical modalities including the pros and cons. Later, we will summarize different fluorescence labeling methods. In the final section, we will discuss well-established chronic and acute IVM models for different organs.
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Affiliation(s)
- Ravikumar Vaghela
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Andreas Arkudas
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Raymund E Horch
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Maximilian Hessenauer
- Department of Plastic and Hand Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
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14
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Pelisch N, Rosas Almanza J, Stehlik KE, Aperi BV, Kroner A. CCL3 contributes to secondary damage after spinal cord injury. J Neuroinflammation 2020; 17:362. [PMID: 33246483 PMCID: PMC7694914 DOI: 10.1186/s12974-020-02037-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 11/17/2020] [Indexed: 12/19/2022] Open
Abstract
Background Secondary damage after spinal cord injury (SCI) is characterized by a cascade of events including hemorrhage, apoptosis, oxidative stress, and inflammation which increase the lesion size which can influence the functional impairment. Thus, identifying specific mechanisms attributed to secondary injury is critical in minimizing tissue damage and improving neurological outcome. In this work, we are investigating the role of CCL3 (macrophage inflammatory protein 1-α, MIP-1α), a chemokine involved in the recruitment of inflammatory cells, which plays an important role in inflammatory conditions of the central and peripheral nervous system. Methods A mouse model of lower thoracic (T11) spinal cord contusion injury was used. We assessed expression levels of CCL3 and its receptors on the mRNA and protein level and analyzed changes in locomotor recovery and the inflammatory response in the injured spinal cord of wild-type and CCL3−/− mice. Results The expression of CCL3 and its receptors was increased after thoracic contusion SCI in mice. We then examined the role of CCL3 after SCI and its direct influence on the inflammatory response, locomotor recovery and lesion size using CCL3−/− mice. CCL3−/− mice showed mild but significant improvement of locomotor recovery, a smaller lesion size and reduced neuronal damage compared to wild-type controls. In addition, neutrophil numbers as well as the pro-inflammatory cytokines and chemokines, known to play a deleterious role after SCI, were markedly reduced in the absence of CCL3. Conclusion We have identified CCL3 as a potential target to modulate the inflammatory response and secondary damage after SCI. Collectively, this study shows that CCL3 contributes to progressive tissue damage and functional impairment during secondary injury after SCI. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-020-02037-3.
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Affiliation(s)
- Nicolas Pelisch
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.,Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI, 53295, USA
| | - Jose Rosas Almanza
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.,Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI, 53295, USA
| | - Kyle E Stehlik
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.,Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI, 53295, USA
| | - Brandy V Aperi
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.,Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI, 53295, USA
| | - Antje Kroner
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, 53226, USA. .,Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, WI, 53295, USA. .,Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
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15
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Nicolai L, Schiefelbein K, Lipsky S, Leunig A, Hoffknecht M, Pekayvaz K, Raude B, Marx C, Ehrlich A, Pircher J, Zhang Z, Saleh I, Marel AK, Löf A, Petzold T, Lorenz M, Stark K, Pick R, Rosenberger G, Weckbach L, Uhl B, Xia S, Reichel CA, Walzog B, Schulz C, Zheden V, Bender M, Li R, Massberg S, Gaertner F. Vascular surveillance by haptotactic blood platelets in inflammation and infection. Nat Commun 2020; 11:5778. [PMID: 33188196 PMCID: PMC7666582 DOI: 10.1038/s41467-020-19515-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 10/14/2020] [Indexed: 12/21/2022] Open
Abstract
Breakdown of vascular barriers is a major complication of inflammatory diseases. Anucleate platelets form blood-clots during thrombosis, but also play a crucial role in inflammation. While spatio-temporal dynamics of clot formation are well characterized, the cell-biological mechanisms of platelet recruitment to inflammatory micro-environments remain incompletely understood. Here we identify Arp2/3-dependent lamellipodia formation as a prominent morphological feature of immune-responsive platelets. Platelets use lamellipodia to scan for fibrin(ogen) deposited on the inflamed vasculature and to directionally spread, to polarize and to govern haptotactic migration along gradients of the adhesive ligand. Platelet-specific abrogation of Arp2/3 interferes with haptotactic repositioning of platelets to microlesions, thus impairing vascular sealing and provoking inflammatory microbleeding. During infection, haptotaxis promotes capture of bacteria and prevents hematogenic dissemination, rendering platelets gate-keepers of the inflamed microvasculature. Consequently, these findings identify haptotaxis as a key effector function of immune-responsive platelets. Breakdown of vascular barriers is a major complication of inflammatory diseases. However, the mechanisms underlying platelet recruitment to inflammatory micro-environments remains unclear. Here, the authors identify haptotaxis as a key effector function of immune-responsive platelets
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Affiliation(s)
- Leo Nicolai
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Karin Schiefelbein
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Silvia Lipsky
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Alexander Leunig
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Marie Hoffknecht
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Kami Pekayvaz
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Ben Raude
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Charlotte Marx
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Andreas Ehrlich
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Joachim Pircher
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Zhe Zhang
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Inas Saleh
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | | | - Achim Löf
- Ludwig-Maximilians-Universität, 80799, Munich, Germany
| | - Tobias Petzold
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Michael Lorenz
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Konstantin Stark
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Robert Pick
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, München, Germany.,Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Planegg-Martinsried, Munich, Germany
| | - Gerhild Rosenberger
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Ludwig Weckbach
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany
| | - Bernd Uhl
- Department of Otorhinolarynology, Ludwig-Maximilians-Universität Munich, Munich, Germany
| | - Sheng Xia
- Department of Cell Biology, Johns Hopkins University School of Medicine, 855 North Wolfe Street, Baltimore, MD, 21205, USA
| | | | - Barbara Walzog
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, München, Germany.,Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Planegg-Martinsried, Munich, Germany
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany
| | - Vanessa Zheden
- Institute of Science and Technology (IST) Austria, 3400, Klosterneuburg, Austria
| | - Markus Bender
- Institute of Experimental Biomedicine I, University Hospital and Rudolf Virchow Center, Würzburg, Germany
| | - Rong Li
- Department of Cell Biology, Johns Hopkins University School of Medicine, 855 North Wolfe Street, Baltimore, MD, 21205, USA
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, Klinikum der Ludwig-Maximilians-Universität, 81377, Munich, Germany. .,DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany.
| | - Florian Gaertner
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, 80802, Munich, Germany. .,Institute of Science and Technology (IST) Austria, 3400, Klosterneuburg, Austria.
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16
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Bartsch LM, Damasio MPS, Subudhi S, Drescher HK. Tissue-Resident Memory T Cells in the Liver-Unique Characteristics of Local Specialists. Cells 2020; 9:cells9112457. [PMID: 33187162 PMCID: PMC7696520 DOI: 10.3390/cells9112457] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 12/23/2022] Open
Abstract
T cells play an important role to build up an effective immune response and are essential in the eradication of pathogens. To establish a long-lasting protection even after a re-challenge with the same pathogen, some T cells differentiate into memory T cells. Recently, a certain subpopulation of memory T cells at different tissue-sites of infection was detected-tissue-resident memory T cells (TRM cells). These cells can patrol in the tissue in order to encounter their cognate antigen to establish an effective protection against secondary infection. The liver as an immunogenic organ is exposed to a variety of pathogens entering the liver through the systemic blood circulation or via the portal vein from the gut. It could be shown that intrahepatic TRM cells can reside within the liver tissue for several years. Interestingly, hepatic TRM cell differentiation requires a distinct cytokine milieu. In addition, TRM cells express specific surface markers and transcription factors, which allow their identification delimited from their circulating counterparts. It could be demonstrated that liver TRM cells play a particular role in many liver diseases such as hepatitis B and C infection, non-alcoholic fatty liver disease and even play a role in the development of hepatocellular carcinoma and in building long-lasting immune responses after vaccination. A better understanding of intrahepatic TRM cells is critical to understand the pathophysiology of many liver diseases and to identify new potential drug targets for the development of novel treatment strategies.
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Affiliation(s)
- Lea M. Bartsch
- Correspondence: (L.M.B.); (H.K.D.); Tel.: +1-(617)-724-7515 (L.M.B. & H.K.D.)
| | | | | | - Hannah K. Drescher
- Correspondence: (L.M.B.); (H.K.D.); Tel.: +1-(617)-724-7515 (L.M.B. & H.K.D.)
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17
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Jensen KN, Omarsdottir SY, Reinhardsdottir MS, Hardardottir I, Freysdottir J. Docosahexaenoic Acid Modulates NK Cell Effects on Neutrophils and Their Crosstalk. Front Immunol 2020; 11:570380. [PMID: 33123143 PMCID: PMC7573488 DOI: 10.3389/fimmu.2020.570380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 09/16/2020] [Indexed: 02/02/2023] Open
Abstract
Natural killer (NK) cells and neutrophils engage in crosstalk that is important in inflammation and likely also for resolution of inflammation. NK cells activate neutrophils and induce their infiltration to the inflamed sites but may also influence their apoptosis and their subsequent efferocytosis by macrophages. Several studies indicate that docosahexaenoic acid (DHA) can inhibit NK cell cytotoxicity but the effects of DHA on the ability of NK cells to engage in crosstalk with neutrophils and affect their functions have not been described. This study explored the kinetics of the effects of NK cells and NK cells pre-treated with DHA on neutrophil surface molecule expression and apoptosis, as well as the ability of NK cells to affect other neutrophil functions. In addition, the study explored the effects of neutrophils on NK cell phenotype and function. Primary NK cells were pre-incubated with or without DHA, then stimulated and co-cultured with freshly isolated neutrophils. When co-cultured with NK cells, neutrophils had higher expression levels of CD11b and CD47; secreted more IL-8, IL-1ra, and CXCL10; had increased phagocytic ability; and their apoptosis was increased early after initiation of the co-culture while dampened at a later time-point. Pre-incubation of NK cells with DHA attenuated NK cell-induced upregulation of CD11b and CD47 on neutrophils, had minor effects on NK cell induction of cytokine/chemokine secretion or their phagocytic ability. Neutrophils also affected the function of NK cells, lowering the frequency of NKp46+ and CXCR3+ NK cells and increasing the concentrations of IFN-γ, TNF-α, and GM-CSF in the co-cultures. Pre-incubation of NK cells with DHA further decreased the frequency of NKp46+ NK cells in the co-culture with neutrophils and decreased the concentrations of IFN-γ, CCL3 and GM-CSF. These findings indicate that NK cells have mostly pro-inflammatory effects on neutrophils and that DHA can attenuate some of these pro-inflammatory effects. Neutrophils had both anti- and pro-inflammatory effects on NK cells. When NK cells had been pre-treated with DHA, the anti-inflammatory effects were increased and some of the pro-inflammatory effects attenuated. Overall, the results suggest that DHA may lead to a more anti-inflammatory microenvironment for NK cell and neutrophil crosstalk.
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Affiliation(s)
- Kirstine Nolling Jensen
- Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland.,Department of Immunology, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.,Center for Rheumatology Research, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Sunnefa Yeatman Omarsdottir
- Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland.,Department of Immunology, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.,Center for Rheumatology Research, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Margret Sol Reinhardsdottir
- Department of Immunology, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.,Center for Rheumatology Research, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.,Faculty of Pharmaceutical Sciences, University of Iceland, Reykjavik, Iceland
| | - Ingibjorg Hardardottir
- Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland.,Department of Immunology, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Jona Freysdottir
- Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland.,Department of Immunology, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland.,Center for Rheumatology Research, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
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18
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Prakash S, Roy S, Srivastava R, Coulon PG, Dhanushkodi NR, Vahed H, Jankeel A, Geertsema R, Amezquita C, Nguyen L, Messaoudi I, Burkhardt AM, BenMohamed L. Unique molecular signatures of antiviral memory CD8 + T cells associated with asymptomatic recurrent ocular herpes. Sci Rep 2020; 10:13843. [PMID: 32796943 PMCID: PMC7427992 DOI: 10.1038/s41598-020-70673-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 07/28/2020] [Indexed: 12/14/2022] Open
Abstract
The nature of antiviral CD8+ T cells associated with protective and pathogenic herpes simplex virus type 1 (HSV-1) infections remains unclear. We compared the transcriptome, phenotype, and function of memory CD8+ T cells, sharing the same HSV-1 epitope-specificities, from infected HLA-A*0201 positive symptomatic (SYMP) vs. asymptomatic (ASYMP) individuals and HLA-A*0201 transgenic rabbits. Compared to higher frequencies of multifunctional effector memory CD8+ TEM cells in ASYMP individuals, the SYMP individuals presented dysfunctional CD8+ TEM cells, expressing major exhaustion pathways. Compared to protected ASYMP HLA transgenic rabbits, the trigeminal ganglia of non-protected SYMP HLA transgenic rabbits had higher frequencies of dysfunctional tissue-resident CD8+ TRM cells. Moreover, blockade of T cell exhaustion pathways restored the function of CD8+ T cells, reduced virus reactivation, and diminished recurrent disease in HLA transgenic rabbits. These findings reveal unique molecular signatures of protective CD8+ T cells and pave the way for T-cell-based immunotherapy to combat recurrent ocular herpes.
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Affiliation(s)
- Swayam Prakash
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Soumyabrata Roy
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Ruchi Srivastava
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Pierre-Gregoire Coulon
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Nisha R Dhanushkodi
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Hawa Vahed
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Allen Jankeel
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, CA, 92697, USA
| | - Roger Geertsema
- University Laboratory Animal Resources, University of California Irvine, Irvine, CA, 92697, USA
| | - Cassandra Amezquita
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Lan Nguyen
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, CA, 92697, USA
| | - Amanda M Burkhardt
- Vaccine Research and Development Center, Department of Physiology & Biophysics, University of California, Irvine, CA, 92617, USA
- Institute for Immunology, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA
| | - Lbachir BenMohamed
- Laboratory of Cellular and Molecular Immunology, Gavin Herbert Eye Institute, School of Medicine, University of California Irvine, Hewitt Hall, Room 2032; 843 Health Sciences Rd, Irvine, CA, 92697, USA.
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, CA, 92697, USA.
- Vaccine Research and Development Center, Department of Physiology & Biophysics, University of California, Irvine, CA, 92617, USA.
- Institute for Immunology, School of Medicine, University of California Irvine, Irvine, CA, 92697, USA.
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19
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Metzemaekers M, Gouwy M, Proost P. Neutrophil chemoattractant receptors in health and disease: double-edged swords. Cell Mol Immunol 2020; 17:433-450. [PMID: 32238918 PMCID: PMC7192912 DOI: 10.1038/s41423-020-0412-0] [Citation(s) in RCA: 221] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/05/2020] [Indexed: 02/08/2023] Open
Abstract
Neutrophils are frontline cells of the innate immune system. These effector leukocytes are equipped with intriguing antimicrobial machinery and consequently display high cytotoxic potential. Accurate neutrophil recruitment is essential to combat microbes and to restore homeostasis, for inflammation modulation and resolution, wound healing and tissue repair. After fulfilling the appropriate effector functions, however, dampening neutrophil activation and infiltration is crucial to prevent damage to the host. In humans, chemoattractant molecules can be categorized into four biochemical families, i.e., chemotactic lipids, formyl peptides, complement anaphylatoxins and chemokines. They are critically involved in the tight regulation of neutrophil bone marrow storage and egress and in spatial and temporal neutrophil trafficking between organs. Chemoattractants function by activating dedicated heptahelical G protein-coupled receptors (GPCRs). In addition, emerging evidence suggests an important role for atypical chemoattractant receptors (ACKRs) that do not couple to G proteins in fine-tuning neutrophil migratory and functional responses. The expression levels of chemoattractant receptors are dependent on the level of neutrophil maturation and state of activation, with a pivotal modulatory role for the (inflammatory) environment. Here, we provide an overview of chemoattractant receptors expressed by neutrophils in health and disease. Depending on the (patho)physiological context, specific chemoattractant receptors may be up- or downregulated on distinct neutrophil subsets with beneficial or detrimental consequences, thus opening new windows for the identification of disease biomarkers and potential drug targets.
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Affiliation(s)
- Mieke Metzemaekers
- Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Herestraat 49 bus 1042, B-3000, Leuven, Belgium
| | - Mieke Gouwy
- Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Herestraat 49 bus 1042, B-3000, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Rega Institute, KU Leuven, Herestraat 49 bus 1042, B-3000, Leuven, Belgium.
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20
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Law AMK, Valdes-Mora F, Gallego-Ortega D. Myeloid-Derived Suppressor Cells as a Therapeutic Target for Cancer. Cells 2020; 9:cells9030561. [PMID: 32121014 PMCID: PMC7140518 DOI: 10.3390/cells9030561] [Citation(s) in RCA: 252] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 12/15/2022] Open
Abstract
The emergence of immunotherapy has been an astounding breakthrough in cancer treatments. In particular, immune checkpoint inhibitors, targeting PD-1 and CTLA-4, have shown remarkable therapeutic outcomes. However, response rates from immunotherapy have been reported to be varied, with some having pronounced success and others with minimal to no clinical benefit. An important aspect associated with this discrepancy in patient response is the immune-suppressive effects elicited by the tumour microenvironment (TME). Immune suppression plays a pivotal role in regulating cancer progression, metastasis, and reducing immunotherapy success. Most notably, myeloid-derived suppressor cells (MDSC), a heterogeneous population of immature myeloid cells, have potent mechanisms to inhibit T-cell and NK-cell activity to promote tumour growth, development of the pre-metastatic niche, and contribute to resistance to immunotherapy. Accumulating research indicates that MDSC can be a therapeutic target to alleviate their pro-tumourigenic functions and immunosuppressive activities to bolster the efficacy of checkpoint inhibitors. In this review, we provide an overview of the general immunotherapeutic approaches and discuss the characterisation, expansion, and activities of MDSCs with the current treatments used to target them either as a single therapeutic target or synergistically in combination with immunotherapy.
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Affiliation(s)
- Andrew M. K. Law
- Tumour Development Group, The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- Correspondence: (A.M.K.L.); (F.V.-M.); (D.G.-O.); Tel.: +61-(0)2-9355-5894 (A.M.K.L); +61-(0)2-9385-0143 (F.V.-M); +61-(0)2-9355-5776 (D.G.-O)
| | - Fatima Valdes-Mora
- Histone Variants Group, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, NSW 2052, Australia
- Correspondence: (A.M.K.L.); (F.V.-M.); (D.G.-O.); Tel.: +61-(0)2-9355-5894 (A.M.K.L); +61-(0)2-9385-0143 (F.V.-M); +61-(0)2-9355-5776 (D.G.-O)
| | - David Gallego-Ortega
- Tumour Development Group, The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, NSW 2052, Australia
- Correspondence: (A.M.K.L.); (F.V.-M.); (D.G.-O.); Tel.: +61-(0)2-9355-5894 (A.M.K.L); +61-(0)2-9385-0143 (F.V.-M); +61-(0)2-9355-5776 (D.G.-O)
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21
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Ciechanowska A, Popiolek-Barczyk K, Pawlik K, Ciapała K, Oggioni M, Mercurio D, De Simoni MG, Mika J. Changes in macrophage inflammatory protein-1 (MIP-1) family members expression induced by traumatic brain injury in mice. Immunobiology 2020; 225:151911. [PMID: 32059938 DOI: 10.1016/j.imbio.2020.151911] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/15/2020] [Accepted: 01/31/2020] [Indexed: 12/14/2022]
Abstract
A deep knowledge of the profound immunological response induced by traumatic brain injury (TBI) raises the possibility of novel therapeutic interventions. Existing studies have highlighted the important roles of C-C motif ligands in the development of neuroinflammation after brain injury; however, the participation of macrophage inflammatory protein-1 (MIP-1) family members in this phenomenon is still undefined. Therefore, the goal of our study was to evaluate changes in macrophage inflammatory protein-1 (MIP-1) family members (CCL3, CCL4, and CCL9) and their receptors (CCR1 and CCR5) in a mouse model of TBI (induced by controlled cortical impact (CCI)). We also investigated the pattern of activation of immunological cells (such as neutrophils, microglia and astroglia), which on one hand express CCR1/CCR5, and on the other hand might be a source of the tested chemokines in the injured brain. We investigated changes in mRNA (RT-qPCR) and/or protein (ELISA and Western blot) expression in brain structures (the cortex, hippocampus, thalamus, and striatum) at different time points (24 h, 4 days, 7 days, 2 weeks, and/or 5 weeks) after trauma. Our time-course studies revealed the upregulation of the mRNA expression of all members of the MIP-1 family (CCL3, CCL4, and CCL9) in all tested brain structures, mainly in the early stages after injury. A similar pattern of activation was observed at the protein level in the cortex and thalamus, where the strongest activation was observed 1 day after CCI; however, we did not observe any change in CCL3 in the thalamus. Analyses of CCR1 and CCR5 demonstrated the upregulation of the mRNA expression of both receptors in all tested cerebral structures, mainly in the early phases post injury (24 h, 4 days and 7 days). Protein analysis showed the upregulation of CCR1 and CCR5 in the thalamus 24 h after TBI, but we did not detect any change in the cortex. We also observed the upregulation of neutrophil marker (MPO) at the early time points (24 h and 7 days) in the cortex, while the profound activation of microglia (IBA-1) and astroglia (GFAP) was observed mainly on day 7. Our findings highlight for the first time that CCL3, CCL4, CCL9 and their receptors offer promising targets for influencing secondary neuronal injury and improving TBI therapy. The results suggest that the MIP-1 family is an important target for pharmacological intervention for brain injury.
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Affiliation(s)
- Agata Ciechanowska
- Department of Pain Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Popiolek-Barczyk
- Department of Pain Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Pawlik
- Department of Pain Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Ciapała
- Department of Pain Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland
| | - Marco Oggioni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Neuroscience, Milan, Italy
| | - Domenico Mercurio
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Neuroscience, Milan, Italy
| | - Maria-Grazia De Simoni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Neuroscience, Milan, Italy
| | - Joanna Mika
- Department of Pain Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland.
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22
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Puhr-Westerheide D, Schink SJ, Fabritius M, Mittmann L, Hessenauer MET, Pircher J, Zuchtriegel G, Uhl B, Holzer M, Massberg S, Krombach F, Reichel CA. Neutrophils promote venular thrombosis by shaping the rheological environment for platelet aggregation. Sci Rep 2019; 9:15932. [PMID: 31685838 PMCID: PMC6828708 DOI: 10.1038/s41598-019-52041-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/12/2019] [Indexed: 12/24/2022] Open
Abstract
In advanced inflammatory disease, microvascular thrombosis leads to the interruption of blood supply and provokes ischemic tissue injury. Recently, intravascularly adherent leukocytes have been reported to shape the blood flow in their immediate vascular environment. Whether these rheological effects are relevant for microvascular thrombogenesis remains elusive. Employing multi-channel in vivo microscopy, analyses in microfluidic devices, and computational modeling, we identified a previously unanticipated role of leukocytes for microvascular clot formation in inflamed tissue. For this purpose, neutrophils adhere at distinct sites in the microvasculature where these immune cells effectively promote thrombosis by shaping the rheological environment for platelet aggregation. In contrast to larger (lower-shear) vessels, this process in high-shear microvessels does not require fibrin generation or extracellular trap formation, but involves GPIbα-vWF and CD40-CD40L-dependent platelet interactions. Conversely, interference with these cellular interactions substantially compromises microvascular clotting. Thus, leukocytes shape the rheological environment in the inflamed venular microvasculature for platelet aggregation thereby effectively promoting the formation of blood clots. Targeting this specific crosstalk between the immune system and the hemostatic system might be instrumental for the prevention and treatment of microvascular thromboembolic pathologies, which are inaccessible to invasive revascularization strategies.
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Affiliation(s)
- Daniel Puhr-Westerheide
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Radiology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Severin J Schink
- Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, USA
| | - Matthias Fabritius
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Radiology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Laura Mittmann
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Otorhinolaryngology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Maximilian E T Hessenauer
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Plastic and Hand Surgery, Friedrich Alexander University Erlangen Nuernberg, Erlangen, Germany
| | - Joachim Pircher
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Cardiology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Gabriele Zuchtriegel
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Otorhinolaryngology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Bernd Uhl
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Otorhinolaryngology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Martin Holzer
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Otorhinolaryngology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Steffen Massberg
- Department of Cardiology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Fritz Krombach
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christoph A Reichel
- Walter Brendel Centre of Experimental Medicine, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany. .,Department of Otorhinolaryngology, Klinikum der Universität München, Ludwig-Maximilians-Universität München, Munich, Germany.
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Dietary Polyunsaturated Fatty Acids Promote Neutrophil Accumulation in the Spleen by Altering Chemotaxis and Delaying Cell Death. Infect Immun 2019; 87:IAI.00270-19. [PMID: 31085706 DOI: 10.1128/iai.00270-19] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/04/2019] [Indexed: 12/13/2022] Open
Abstract
Neutrophils are the most abundant circulating leukocytes in humans and are essential for the defense against invading pathogens. Like many other cells of an organism, neutrophils can be highly influenced by the diet. We have previously described that mice fed a high-fat diet rich in polyunsaturated fatty acids (HFD-P) present a higher frequency of neutrophils in bone marrow than mice fed a high-fat diet rich in saturated fatty acids (HFD-S). Interestingly, such an increase correlated with improved survival against bacterium-induced sepsis. In this study, we aimed to investigate the effects of dietary polyunsaturated and saturated fatty acids on neutrophil homeostasis. We found that HFD-P specifically induced the accumulation of neutrophils in the marginal pools of the spleen and liver. The accumulation of neutrophils in the spleen was a result of a dual effect of polyunsaturated fatty acids on neutrophil homeostasis. First, polyunsaturated fatty acids enhanced the recruitment of neutrophils from the circulation into the spleen via chemokine secretion. Second, they delayed neutrophil cell death in the spleen. Interestingly, these effects were not observed in mice fed a diet rich in saturated fatty acids, suggesting that the type of fat rather than the amount of fat mediates the alterations in neutrophil homeostasis. In conclusion, our results show that dietary polyunsaturated fatty acids have a strong modulatory effect on neutrophil homeostasis that may have future clinical applications.
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24
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Reichel CA. [Recent developments in head and neck immunology : A basis for novel therapeutic strategies?]. HNO 2019; 67:258-264. [PMID: 30874856 DOI: 10.1007/s00106-019-0639-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Immunological processes play a key role in the pathogenesis of head and neck pathologies. Besides allergies or infections of the tonsils, the paranasal sinuses, and the ear, initiation, progression, and metastasis of malignant tumors are particularly dependent on the immune system. The recruitment of white blood cells to the site of injury or infection is a critical event in the pathogenesis of these diseases. This article will provide a compact overview about recent developments in this rapidly growing field in otorhinolaryngology which might establish the basis for promising therapeutic strategies for previously insufficiently treatable disorders of the head and neck.
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Affiliation(s)
- C A Reichel
- Klinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Klinikum der Universität München, Marchioninistr. 15, 81377, München, Deutschland.
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25
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Teschner D, Cholaszczyńska A, Ries F, Beckert H, Theobald M, Grabbe S, Radsak M, Bros M. CD11b Regulates Fungal Outgrowth but Not Neutrophil Recruitment in a Mouse Model of Invasive Pulmonary Aspergillosis. Front Immunol 2019; 10:123. [PMID: 30778357 PMCID: PMC6369709 DOI: 10.3389/fimmu.2019.00123] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 01/15/2019] [Indexed: 12/28/2022] Open
Abstract
ß2 integrin receptors consist of an alpha subunit (CD11a-CD11d) and CD18 as the common beta subunit, and are differentially expressed by leukocytes. ß2 integrins are required for cell-cell interaction, transendothelial migration, uptake of opsonized pathogens, and cell signaling processes. Functional loss of CD18—termed leukocyte-adhesion deficiency type 1 (LAD1)—results in an immunocompromised state characterized by frequent occurrence of severe infections. In immunosuppressed individuals Aspergillus fumigatus is a frequent cause of invasive pulmonary fungal infection, and often occurs in patients suffering from LAD1. Here, we asked for the importance of CD11b/CD18 also termed MAC-1 which is required for phagocytosis of opsonized A. fumigatus conidia by polymorphonuclear neutrophils (PMN) for control of pulmonary A. fumigatus infection. We show that CD11b−/− mice infected with A. fumigatus were unaffected in long term survival, similar to wild type (WT) mice. However, bronchoalveolar lavage (BAL) performed 1 day after infection revealed a higher lung infiltration of PMN in case of infected CD11b−/− mice than observed for WT mice. BAL derived from infected CD11b−/− mice also contained a higher amount of leukocyte-attracting CCL5 chemokine, but lower amounts of proinflammatory innate cytokines. In accordance, lung tissue of A. fumigatus infected CD11b−/− mice was characterized by lower cellular inflammation, and a higher fungal burden. In agreement, CD11b−/−PMN exerted lower phagocytic activity on serum-opsonized A. fumigatus conidia than WT PMN in vitro. Our study shows that MAC-1 is required for effective clearance of A. fumigatus by infiltrating PMN, and the establishment of an inflammatory microenvironment in infected lung. Enhanced infiltration of CD11b−/− PMN may serve to compensate impaired PMN function.
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Affiliation(s)
- Daniel Teschner
- Department of Hematology, Medical Oncology and Pneumology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Anna Cholaszczyńska
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Frederic Ries
- Department of Hematology, Medical Oncology and Pneumology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Hendrik Beckert
- Department of Pulmonary Medicine, University Medical Center Essen-Ruhrlandklinik, Essen, Germany
| | - Matthias Theobald
- Department of Hematology, Medical Oncology and Pneumology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Markus Radsak
- Department of Hematology, Medical Oncology and Pneumology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Matthias Bros
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
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26
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Behr FM, Chuwonpad A, Stark R, van Gisbergen KPJM. Armed and Ready: Transcriptional Regulation of Tissue-Resident Memory CD8 T Cells. Front Immunol 2018; 9:1770. [PMID: 30131803 PMCID: PMC6090154 DOI: 10.3389/fimmu.2018.01770] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/17/2018] [Indexed: 11/13/2022] Open
Abstract
A fundamental benefit of immunological memory is the ability to respond in an enhanced manner upon secondary encounter with the same pathogen. Tissue-resident memory CD8 T (TRM) cells contribute to improved protection against reinfection through the generation of immediate effector responses at the site of pathogen entry. Key to the potential of TRM cells to develop rapid recall responses is their location within the epithelia of the skin, lungs, and intestines at prime entry sites of pathogens. TRM cells are among the first immune cells to respond to pathogens that have been previously encountered in an antigen-specific manner. Upon recognition of invading pathogens, TRM cells release IFN-γ and other pro-inflammatory cytokines and chemokines. These effector molecules activate the surrounding epithelial tissue and recruit other immune cells including natural killer (NK) cells, B cells, and circulating memory CD8 T cells to the site of infection. The repertoire of TRM effector functions also includes the direct lysis of infected cells through the release of cytotoxic molecules such as perforin and granzymes. The mechanisms enabling TRM cells to respond in such a rapid manner are gradually being uncovered. In this review, we will address the signals that instruct TRM generation and maintenance as well as the underlying transcriptional network that keeps TRM cells in a deployment-ready modus. Furthermore, we will discuss how TRM cells respond to reinfection of the tissue and how transcription factors may control immediate and proliferative TRM responses.
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Affiliation(s)
- Felix M Behr
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands.,Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| | - Ammarina Chuwonpad
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands
| | - Regina Stark
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands.,Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| | - Klaas P J M van Gisbergen
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory AMC/UvA, Amsterdam, Netherlands.,Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
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27
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Souza-Almeida G, D'Avila H, Almeida PE, Luna-Gomes T, Liechocki S, Walzog B, Hepper I, Castro-Faria-Neto HC, Bozza PT, Bandeira-Melo C, Maya-Monteiro CM. Leptin Mediates In Vivo Neutrophil Migration: Involvement of Tumor Necrosis Factor-Alpha and CXCL1. Front Immunol 2018; 9:111. [PMID: 29467755 PMCID: PMC5808117 DOI: 10.3389/fimmu.2018.00111] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 01/15/2018] [Indexed: 11/13/2022] Open
Abstract
Leptin directly activates macrophages and lymphocytes, but the role of leptin in neutrophil activation and migration is still controversial. Here, we investigate the in vivo mechanisms of neutrophil migration induced by leptin. The intraperitoneal injection of leptin (1 mg/kg) induces a time- and concentration-dependent neutrophil influx. We did not observe the enhancement of lipid bodies/droplets in neutrophils, after leptin treatment, as we had observed previously in peritoneal macrophages. The participation of leukotriene B4 (LTB4) in neutrophil recruitment triggered by leptin was investigated using different strategies. Leptin-induced neutrophil recruitment occurs both in the absence of 5-lipoxygenase activity in 5-lipoxygenase (5-LO)-/- mice and after the administration of either 5-LO inhibitor (Zileuton) or the LTB4 receptor antagonist (U-75302). Moreover, no direct induction of LTB4 by leptin could be observed. Neutrophil influx could not be prevented by the mammalian target of rapamycin (mTOR) inhibitor, rapamycin, contrasting with the leptin-induced signaling for lipid body formation in macrophage that is mTOR-dependent. Leptin administration led to tumor necrosis factor-alpha (TNFα) production by the peritoneal cells both in vivo and in vitro. In addition, neutrophil recruitment was inhibited in tumor necrosis factor receptor 1 (TNFR1-/-) mice, indicating a role for TNF in leptin-induced neutrophil recruitment to the peritoneal cavity. Leptin-induced neutrophil influx was PI3Kγ-dependent, as it was absent in PI3Kγ-/- mice. Accordingly, leptin induced the peritoneal cells to produce CXCL1, both in vivo and in vitro, and the neutrophil influx was ablated after using an antibody against CXCL1. Our results establish TNFα/TNFR1- and CXCL1-dependent signaling as important pathways for leptin-induced neutrophil migration in vivo.
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Affiliation(s)
- Glaucia Souza-Almeida
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Heloisa D'Avila
- Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Patricia E Almeida
- Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Tatiana Luna-Gomes
- Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil.,Departamento de Ciências da Natureza, Instituto de Aplicação Fernando Rodrigues da Silveira, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sally Liechocki
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Barbara Walzog
- Walter Brendel Centre of Experimental Medicine, Department of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ingrid Hepper
- Walter Brendel Centre of Experimental Medicine, Department of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | | | - Patricia T Bozza
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Christianne Bandeira-Melo
- Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Clarissa M Maya-Monteiro
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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28
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Law AMK, Lim E, Ormandy CJ, Gallego-Ortega D. The innate and adaptive infiltrating immune systems as targets for breast cancer immunotherapy. Endocr Relat Cancer 2017; 24:R123-R144. [PMID: 28193698 PMCID: PMC5425956 DOI: 10.1530/erc-16-0404] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/13/2017] [Indexed: 12/15/2022]
Abstract
A cancer cell-centric view has long dominated the field of cancer biology. Research efforts have focussed on aberrant cancer cell signalling pathways and on changes to cancer cell DNA. Mounting evidence demonstrates that many cancer-associated cell types within the tumour stroma co-evolve and support tumour growth and development, greatly modifying cancer cell behaviour, facilitating invasion and metastasis and controlling dormancy and sensitivity to drug therapy. Thus, these stromal cells represent potential targets for cancer therapy. Among these cell types, immune cells have emerged as a promising target for therapy. The adaptive and the innate immune system play an important role in normal mammary development and breast cancer. The number of infiltrating adaptive immune system cells with tumour-rejecting capacity, primarily, T lymphocytes, is lower in breast cancer compared with other cancer types, but infiltration occurs in a large proportion of cases. There is strong evidence demonstrating the importance of the immunosuppressive role of the innate immune system during breast cancer progression. A consideration of components of both the innate and the adaptive immune system is essential for the design and development of immunotherapies in breast cancer. In this review, we focus on the importance of immunosuppressive myeloid-derived suppressor cells (MDSCs) as potential targets for breast cancer therapy.
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Affiliation(s)
- Andrew M K Law
- Tumour Development GroupThe Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- Cancer Biology LaboratoryThe Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Elgene Lim
- Connie Johnson Breast Cancer Research LaboratoryThe Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- St. Vincent's Clinical SchoolFaculty of Medicine, University of New South Wales Australia, Sydney, New South Wales, Australia
| | - Christopher J Ormandy
- Cancer Biology LaboratoryThe Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- St. Vincent's Clinical SchoolFaculty of Medicine, University of New South Wales Australia, Sydney, New South Wales, Australia
| | - David Gallego-Ortega
- Tumour Development GroupThe Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- St. Vincent's Clinical SchoolFaculty of Medicine, University of New South Wales Australia, Sydney, New South Wales, Australia
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29
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Lund N, Gränsbo K, Wernersson C, Melander O. Cardiometabolic biomarkers are predictors of readmission and death in patients hospitalized for acute dyspnea. Am J Emerg Med 2016; 35:610-614. [PMID: 28062207 PMCID: PMC5754318 DOI: 10.1016/j.ajem.2016.12.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 12/12/2016] [Accepted: 12/16/2016] [Indexed: 12/20/2022] Open
Abstract
Background Acute dyspnea affects a large heterogeneous patient group with high mortality and readmission rates. Purpose To investigate if cardiometabolic biomarkers and clinical characteristics predict readmission and death in patients hospitalized for acute dyspnea. Methods 65 dyspnea patients at a general internal medicine ward were followed for six months. The combined endpoint was readmission or death. Measurements and results Cardiometabolic biomarkers at admission were related to the endpoint in Cox proportional hazard models (adjusted for sex, age, oxygen saturation, respiratory rate and C-reactive protein (CRP)). The biomarkers tissue-type plasminogen activator (tPA), prolactin (PRL), tumor necrosis factor receptor superfamily member 6 (FAS) and C-C motif chemokine 3 (CCL3) were independently and significantly related to the endpoint and combined into a biomarker risk score (BRS). Each SD increment of the BRS conferred a hazard ratio (HR) of 2.13 (1.39–3.27) P = 0.001. The top vs bottom tertile of the BRS conferred a HR of 4.75 (1.93–11.68) P = 0.001. Dyspnea severity was also associated with worse outcome, HR = 3.43 (1.28–9.20) P = 0.014. However, when mutually adjusted the BRS remained significant (P = 0.004) whereas dyspnea severity was not. The BRS was related to the endpoint among patients with mild to moderate dyspnea (P = 0.016) but not among those with severe dyspnea. Conclusion A score of tPA, PRL, FAS and CCL3 predicts 6-month death and readmission in patients hospitalized for acute dyspnea and may prove useful to optimize length of stay and follow-up. Although the BRS outweighs dyspnea severity in prediction of the endpoint, its prognostic role is strongest in mild-moderate dyspnea.
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Affiliation(s)
- Nathalie Lund
- Skåne University Hospital Malmö, Clinical Research Centre, Malmoe, Sweden.
| | - Klas Gränsbo
- Skåne University Hospital Malmö, Clinical Research Centre CRC, Malmoe, Sweden
| | - Camilla Wernersson
- Skåne University Hospital Malmö, Clinical Research Centre CRC, Malmoe, Sweden
| | - Olle Melander
- Skåne University Hospital Malmö, Clinical Research Centre CRC, Malmoe, Sweden
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30
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Kumar V, Patel S, Tcyganov E, Gabrilovich DI. The Nature of Myeloid-Derived Suppressor Cells in the Tumor Microenvironment. Trends Immunol 2016. [PMID: 26858199 DOI: 10.1016/j.it.2016.01.004.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
Myeloid-derived suppressor cells (MDSC) are one of the major components of the tumor microenvironment. The main feature of these cells is their potent immune suppressive activity. MDSC are generated in the bone marrow and, in tumor-bearing hosts, migrate to peripheral lymphoid organs and the tumor to contribute to the formation of the tumor microenvironment. Recent findings have revealed differences in the function and fate of MDSC in the tumor and peripheral lymphoid organs. We review these findings here and, in this context, we discuss the current understanding as to the nature of these differences, the underlying mechanisms, and their potential impact on the regulation of tumor progression.
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Affiliation(s)
- Vinit Kumar
- The Wistar Institute, 3601 Spruce St., Philadelphia, PA 19104
| | - Sima Patel
- The Wistar Institute, 3601 Spruce St., Philadelphia, PA 19104
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31
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Kumar V, Patel S, Tcyganov E, Gabrilovich DI. The Nature of Myeloid-Derived Suppressor Cells in the Tumor Microenvironment. Trends Immunol 2016; 37:208-220. [PMID: 26858199 DOI: 10.1016/j.it.2016.01.004] [Citation(s) in RCA: 1375] [Impact Index Per Article: 171.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 01/11/2016] [Accepted: 01/11/2016] [Indexed: 02/07/2023]
Abstract
Myeloid-derived suppressor cells (MDSC) are one of the major components of the tumor microenvironment. The main feature of these cells is their potent immune suppressive activity. MDSC are generated in the bone marrow and, in tumor-bearing hosts, migrate to peripheral lymphoid organs and the tumor to contribute to the formation of the tumor microenvironment. Recent findings have revealed differences in the function and fate of MDSC in the tumor and peripheral lymphoid organs. We review these findings here and, in this context, we discuss the current understanding as to the nature of these differences, the underlying mechanisms, and their potential impact on the regulation of tumor progression.
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Affiliation(s)
- Vinit Kumar
- The Wistar Institute, 3601 Spruce St., Philadelphia, PA 19104
| | - Sima Patel
- The Wistar Institute, 3601 Spruce St., Philadelphia, PA 19104
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32
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Scoville DK, White CC, Botta D, McConnachie LA, Zadworny ME, Schmuck SC, Hu X, Gao X, Yu J, Dills RL, Sheppard L, Delaney MA, Griffith WC, Beyer RP, Zangar RC, Pounds JG, Faustman EM, Kavanagh TJ. Susceptibility to quantum dot induced lung inflammation differs widely among the Collaborative Cross founder mouse strains. Toxicol Appl Pharmacol 2015; 289:240-50. [PMID: 26476918 DOI: 10.1016/j.taap.2015.09.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 08/24/2015] [Accepted: 09/24/2015] [Indexed: 10/22/2022]
Abstract
Quantum dots (QDs) are engineered semiconductor nanoparticles with unique physicochemical properties that make them potentially useful in clinical, research and industrial settings. However, a growing body of evidence indicates that like other engineered nanomaterials, QDs have the potential to be respiratory hazards, especially in the context of the manufacture of QDs and products containing them, as well as exposures to consumers using these products. The overall goal of this study was to investigate the role of mouse strain in determining susceptibility to QD-induced pulmonary inflammation and toxicity. Male mice from 8 genetically diverse inbred strains (the Collaborative Cross founder strains) were exposed to CdSe-ZnS core-shell QDs stabilized with an amphiphilic polymer. QD treatment resulted in significant increases in the percentage of neutrophils and levels of cytokines present in bronchoalveolar lavage fluid (BALF) obtained from NOD/ShiLtJ and NZO/HlLtJ mice relative to their saline (Sal) treated controls. Cadmium measurements in lung tissue indicated strain-dependent differences in disposition of QDs in the lung. Total glutathione levels in lung tissue were significantly correlated with percent neutrophils in BALF as well as with lung tissue Cd levels. Our findings indicate that QD-induced acute lung inflammation is mouse strain dependent, that it is heritable, and that the choice of mouse strain is an important consideration in planning QD toxicity studies. These data also suggest that formal genetic analyses using additional strains or recombinant inbred strains from these mice could be useful for discovering potential QD-induced inflammation susceptibility loci.
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Affiliation(s)
- David K Scoville
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Collin C White
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Dianne Botta
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Lisa A McConnachie
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Megan E Zadworny
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Stefanie C Schmuck
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Xiaoge Hu
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Xiaohu Gao
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Jianbo Yu
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Russell L Dills
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Lianne Sheppard
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA; Department of Biostatistics, University of Washington, Seattle, WA 98195, USA
| | - Martha A Delaney
- Department of Comparative Medicine, University of Washington, Seattle, WA 98195, USA; Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - William C Griffith
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Richard P Beyer
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Richard C Zangar
- Systems Toxicology Group - Division of Biological Sciences, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Joel G Pounds
- Systems Toxicology Group - Division of Biological Sciences, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Elaine M Faustman
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Terrance J Kavanagh
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
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33
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Crossing the Vascular Wall: Common and Unique Mechanisms Exploited by Different Leukocyte Subsets during Extravasation. Mediators Inflamm 2015; 2015:946509. [PMID: 26568666 PMCID: PMC4629053 DOI: 10.1155/2015/946509] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/13/2015] [Indexed: 12/30/2022] Open
Abstract
Leukocyte extravasation is one of the essential and first steps during the initiation of inflammation. Therefore, a better understanding of the key molecules that regulate this process may help to develop novel therapeutics for treatment of inflammation-based diseases such as atherosclerosis or rheumatoid arthritis. The endothelial adhesion molecules ICAM-1 and VCAM-1 are known as the central mediators of leukocyte adhesion to and transmigration across the endothelium. Engagement of these molecules by their leukocyte integrin receptors initiates the activation of several signaling pathways within both leukocytes and endothelium. Several of such events have been described to occur during transendothelial migration of all leukocyte subsets, whereas other mechanisms are known only for a single leukocyte subset. Here, we summarize current knowledge on regulatory mechanisms of leukocyte extravasation from a leukocyte and endothelial point of view, respectively. Specifically, we will focus on highlighting common and unique mechanisms that specific leukocyte subsets exploit to succeed in crossing endothelial monolayers.
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34
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Lower Respiratory Tract Infection of the Ferret by 2009 H1N1 Pandemic Influenza A Virus Triggers Biphasic, Systemic, and Local Recruitment of Neutrophils. J Virol 2015; 89:8733-48. [PMID: 26063430 DOI: 10.1128/jvi.00817-15] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 06/04/2015] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Infection of the lower respiratory tract by influenza A viruses results in increases in inflammation and immune cell infiltration in the lung. The dynamic relationships among the lung microenvironments, the lung, and systemic host responses during infection remain poorly understood. Here we used extensive systematic histological analysis coupled with live imaging to gain access to these relationships in ferrets infected with the 2009 H1N1 pandemic influenza A virus (H1N1pdm virus). Neutrophil levels rose in the lungs of H1N1pdm virus-infected ferrets 6 h postinfection and became concentrated at areas of the H1N1pdm virus-infected bronchiolar epithelium by 1 day postinfection (dpi). In addition, neutrophil levels were increased throughout the alveolar spaces during the first 3 dpi and returned to baseline by 6 dpi. Histochemical staining revealed that neutrophil infiltration in the lungs occurred in two waves, at 1 and 3 dpi, and gene expression within microenvironments suggested two types of neutrophils. Specifically, CCL3 levels, but not CXCL8/interleukin 8 (IL-8) levels, were higher within discrete lung microenvironments and coincided with increased infiltration of neutrophils into the lung. We used live imaging of ferrets to monitor host responses within the lung over time with [(18)F]fluorodeoxyglucose (FDG). Sites in the H1N1pdm virus-infected ferret lung with high FDG uptake had high levels of proliferative epithelium. In summary, neutrophils invaded the H1N1pdm virus-infected ferret lung globally and focally at sites of infection. Increased neutrophil levels in microenvironments did not correlate with increased FDG uptake; hence, FDG uptake may reflect prior infection and inflammation of lungs that have experienced damage, as evidenced by bronchial regeneration of tissues in the lungs at sites with high FDG levels. IMPORTANCE Severe influenza disease is characterized by an acute infection of the lower airways that may progress rapidly to organ failure and death. Well-developed animal models that mimic human disease are essential to understanding the complex relationships of the microenvironment, organ, and system in controlling virus replication, inflammation, and disease progression. Employing the ferret model of H1N1pdm virus infection, we used live imaging and comprehensive histological analyses to address specific hypotheses regarding spatial and temporal relationships that occur during the progression of infection and inflammation. We show the general invasion of neutrophils at the organ level (lung) but also a distinct pattern of localized accumulation within the microenvironment at the site of infection. Moreover, we show that these responses were biphasic within the lung. Finally, live imaging revealed an early and sustained host metabolic response at sites of infection that may reflect damage and repair of tissues in the lungs.
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Moser EK, Sun J, Kim TS, Braciale TJ. IL-21R signaling suppresses IL-17+ gamma delta T cell responses and production of IL-17 related cytokines in the lung at steady state and after Influenza A virus infection. PLoS One 2015; 10:e0120169. [PMID: 25849970 PMCID: PMC4388622 DOI: 10.1371/journal.pone.0120169] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 01/28/2015] [Indexed: 01/11/2023] Open
Abstract
Influenza A virus (IAV) infection of the respiratory tract elicits a robust immune response, which is required for efficient virus clearance but at the same time can contribute to lung damage and enhanced morbidity. IL-21 is a member of the type I cytokine family and has many different immune-modulatory functions during acute and chronic virus infections, although its role in IAV infection has not been fully evaluated. In this report we evaluated the contributions of IL-21/IL-21 receptor (IL-21R) signaling to host defense in a mouse model of primary IAV infection using IL-21R knock out (KO) mice. We found that lack of IL-21R signaling had no significant impact on virus clearance, adaptive T cell responses, or myeloid cell accumulations in the respiratory tract. However, a subset of inflammatory cytokines were elevated in the bronchoalveolar lavage fluid of IL-21R KO mice, including IL-17. Although there was only a small increase in Th17 cells in the lungs of IL-21R KO mice, we observed a dramatic increase in gamma delta (γδ) T cells capable of producing IL-17 both after IAV infection and at steady state in the respiratory tract. Finally, we found that IL-21R signaling suppressed the accumulation of IL-17+ γδ T cells in the respiratory tract intrinsically. Thus, our study reveals a previously unrecognized role of IL-21R signaling in regulating IL-17 production by γδ T cells.
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MESH Headings
- Animals
- Bronchoalveolar Lavage Fluid/chemistry
- Cells, Cultured
- Cytokines/genetics
- Cytokines/metabolism
- Female
- Flow Cytometry
- Influenza A virus/immunology
- Influenza A virus/pathogenicity
- Interleukin-17/genetics
- Interleukin-17/metabolism
- Lung/immunology
- Lung/pathology
- Lung/virology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/virology
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Receptors, Interleukin-21/physiology
- Reverse Transcriptase Polymerase Chain Reaction
- Th17 Cells/immunology
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Affiliation(s)
- Emily K. Moser
- The Beirne B. Carter Center for Immunology Research, The University of Virginia, Charlottesville, Virginia, United States of America
- Department of Pharmacology, The University of Virginia, Charlottesville, Virginia, United States of America
| | - Jie Sun
- Herman B. Wells Center for Pediatrics, The University of Indiana, Indianapolis, Indiana, United States of America
| | - Taeg S. Kim
- The Beirne B. Carter Center for Immunology Research, The University of Virginia, Charlottesville, Virginia, United States of America
- Department of Pathology, The University of Virginia, Charlottesville, Virginia, United States of America
| | - Thomas J. Braciale
- The Beirne B. Carter Center for Immunology Research, The University of Virginia, Charlottesville, Virginia, United States of America
- Department of Pathology, The University of Virginia, Charlottesville, Virginia, United States of America
- * E-mail:
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Zuchtriegel G, Uhl B, Hessenauer ME, Kurz AR, Rehberg M, Lauber K, Krombach F, Reichel CA. Spatiotemporal Expression Dynamics of Selectins Govern the Sequential Extravasation of Neutrophils and Monocytes in the Acute Inflammatory Response. Arterioscler Thromb Vasc Biol 2015; 35:899-910. [DOI: 10.1161/atvbaha.114.305143] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Objective—
Leukocyte recruitment to the site of inflammation is a key event in a variety of cardiovascular pathologies. Infiltrating neutrophils constitute the first line of defense that precedes a second wave of emigrating monocytes reinforcing the inflammatory reaction. The mechanisms initiating this sequential process remained largely obscure.
Approach and Results—
Using advanced in vivo microscopy and in vitro/ex vivo techniques, we identified individual spatiotemporal expression patterns of selectins and their principal interaction partners on neutrophils, resident/inflammatory monocytes, and endothelial cells. Coordinating the intraluminal trafficking of neutrophils and inflammatory monocytes to common sites of extravasation, selectins assign different sites to these immune cells for their initial interactions with the microvascular endothelium. Whereas constitutively expressed leukocyte L-selectin/CD62L and endothelial P-selectin/CD62P together with CD44 and P-selectin glycoprotein ligand-1/CD162 initiate the emigration of neutrophils, de novo synthesis of endothelial E-selectin/CD62E launches the delayed secondary recruitment of inflammatory monocytes. In this context, P-selectin/CD62P and L-selectin/CD62L together with P-selectin glycoprotein ligand-1/CD162 and CD44 were found to regulate the flux of rolling neutrophils and inflammatory monocytes, whereas E-selectin/CD62E selectively adjusts the rolling velocity of inflammatory monocytes. Moreover, selectins and their interaction partners P-selectin glycoprotein ligand-1/CD162 and CD44 differentially control the intraluminal crawling behavior of neutrophils and inflammatory monocytes collectively enabling the sequential extravasation of these immune cells to inflamed tissue.
Conclusions—
Our findings provide novel insights into the mechanisms initiating the sequential infiltration of the perivascular tissue by neutrophils and monocytes in the acute inflammatory response and might thereby contribute to the development of targeted therapeutic strategies for prevention and treatment of cardiovascular diseases.
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Affiliation(s)
- Gabriele Zuchtriegel
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Bernd Uhl
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Maximilian E.T. Hessenauer
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Angela R.M. Kurz
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Markus Rehberg
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Kirsten Lauber
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Fritz Krombach
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
| | - Christoph A. Reichel
- From the Department of Otorhinolaryngology, Head and Neck Surgery (G.Z., C.A.R.), Department of Radiation Oncology (K.L.), Walter Brendel Centre of Experimental Medicine (G.Z., B.U., M.E.T.H., A.R.M.K., M.R., F.K., C.A.R.), Klinikum der Universität München, Munich, Germany
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37
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A combretastatin-mediated decrease in neutrophil concentration in peripheral blood and the impact on the anti-tumor activity of this drug in two different murine tumor models. PLoS One 2014; 9:e110091. [PMID: 25299269 PMCID: PMC4192533 DOI: 10.1371/journal.pone.0110091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 09/15/2014] [Indexed: 12/19/2022] Open
Abstract
The vascular disrupting agent combretastatin A-4 disodium phosphate (CA4P) induces fluctuations in peripheral blood neutrophil concentration. Because neutrophils have the potential to induce both vascular damage and angiogenesis we analyzed neutrophil involvement in the anti-tumoral effects of CA4P in C3H mammary carcinomas in CDF1 mice and in SCCVII squamous cell carcinomas in C3H/HeN mice. Flow cytometry analyses of peripheral blood before and up to 144 h after CA4P administration (25 and 250 mg/kg) revealed a decrease 1 h after treatment, followed by an early (3–6 h) and a late (>72 h) increase in the granulocyte concentration. We suggest that the early increase (3–6 h) in granulocyte concentration was caused by the initial decrease at 1 h and found that the late increase was associated with tumor size, and hence independent of CA4P. No alterations in neutrophil infiltration into the C3H tumor after CA4P treatment (25 and 250 mg/kg) were found. Correspondingly, neutrophil depletion in vivo, using an anti-neutrophil antibody, followed by CA4P treatment (25 mg/kg) did not increase the necrotic fraction in C3H tumors significantly. However, by increasing the CA4P dose to 250 mg/kg we found a significant increase of 359% in necrotic fraction when compared to neutrophil-depleted mice; in mice with no neutrophil depletion CA4P induced an 89% change indicating that the presence of neutrophils reduced the effect of CA4P. In contrast, neither CA4P nor 1A8 affected the necrotic fraction in the SCCVII tumors significantly. Hence, we suggest that the initial decrease in granulocyte concentration was caused by non-tumor-specific recruitment of neutrophils and that neutrophils may attenuate CA4P-mediated anti-tumor effect in some tumor models.
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38
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Lewis ND, Hill JD, Juchem KW, Stefanopoulos DE, Modis LK. RNA sequencing of microglia and monocyte-derived macrophages from mice with experimental autoimmune encephalomyelitis illustrates a changing phenotype with disease course. J Neuroimmunol 2014; 277:26-38. [PMID: 25270668 DOI: 10.1016/j.jneuroim.2014.09.014] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 09/07/2014] [Accepted: 09/15/2014] [Indexed: 12/11/2022]
Abstract
The role of microglia and monocyte-derived macrophages in experimental autoimmune encephalomyelitis pathogenesis has been controversial. To gain insight into their respective roles, we developed a method for differentiating between microglia and monocyte-derived macrophages in the CNS by flow cytometry utilizing anti-CD44 antibodies. We used this system to monitor changes in cell number, activation status, and gene expression by RNA sequencing over the course of disease. This in vivo characterization and RNA-Seq dataset improves our understanding of macrophage biology in the brain under inflammatory conditions and may lead to strategies to identify therapies for neuroinflammatory diseases.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Base Sequence/genetics
- Base Sequence/physiology
- Cell Proliferation
- Disease Models, Animal
- Encephalomyelitis, Autoimmune, Experimental/chemically induced
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Female
- Flow Cytometry
- Macrophages, Peritoneal/metabolism
- Mice
- Mice, Inbred C57BL
- Microglia/metabolism
- Myelin-Oligodendrocyte Glycoprotein/toxicity
- Peptide Fragments/toxicity
- Signal Transduction/immunology
- Time Factors
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Affiliation(s)
- Nuruddeen D Lewis
- Department of Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA
| | - Jonathan D Hill
- Department of Research Networking, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, 06877-0368, USA
| | - Kathryn W Juchem
- Department of Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA
| | - Dimitria E Stefanopoulos
- Department of Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA
| | - Louise K Modis
- Department of Immunology and Inflammation, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA.
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Albert-Weissenberger C, Mencl S, Schuhmann MK, Salur I, Göb E, Langhauser F, Hopp S, Hennig N, Meuth SG, Nolte MW, Sirén AL, Kleinschnitz C. C1-Inhibitor protects from focal brain trauma in a cortical cryolesion mice model by reducing thrombo-inflammation. Front Cell Neurosci 2014; 8:269. [PMID: 25249935 PMCID: PMC4158993 DOI: 10.3389/fncel.2014.00269] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 08/19/2014] [Indexed: 12/04/2022] Open
Abstract
Traumatic brain injury (TBI) induces a strong inflammatory response which includes blood-brain barrier damage, edema formation and infiltration of different immune cell subsets. More recently, microvascular thrombosis has been identified as another pathophysiological feature of TBI. The contact-kinin system represents an interface between inflammatory and thrombotic circuits and is activated in different neurological diseases. C1-Inhibitor counteracts activation of the contact-kinin system at multiple levels. We investigated the therapeutic potential of C1-Inhibitor in a model of TBI. Male and female C57BL/6 mice were subjected to cortical cryolesion and treated with C1-Inhibitor after 1 h. Lesion volumes were assessed between day 1 and day 5 and blood-brain barrier damage, thrombus formation as well as the local inflammatory response were determined post TBI. Treatment of male mice with 15.0 IU C1-Inhibitor, but not 7.5 IU, 1 h after cryolesion reduced lesion volumes by ~75% on day 1. This protective effect was preserved in female mice and at later stages of trauma. Mechanistically, C1-Inhibitor stabilized the blood-brain barrier and decreased the invasion of immune cells into the brain parenchyma. Moreover, C1-Inhibitor had strong antithrombotic effects. C1-Inhibitor represents a multifaceted anti-inflammatory and antithrombotic compound that prevents traumatic neurodegeneration in clinically meaningful settings.
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Affiliation(s)
| | - Stine Mencl
- Department of Neurology, University Hospital Würzburg Würzburg, Germany
| | | | - Irmak Salur
- Department of Neurosurgery, University Hospital Würzburg Würzburg, Germany
| | - Eva Göb
- Department of Neurology, University Hospital Würzburg Würzburg, Germany
| | | | - Sarah Hopp
- Department of Neurology, University Hospital Würzburg Würzburg, Germany
| | - Nelli Hennig
- Department of Neurosurgery, University Hospital Würzburg Würzburg, Germany
| | - Sven G Meuth
- Department of Neurology, University of Münster Münster, Germany ; Institute of Physiology I - Neuropathophysiology, University of Münster Münster, Germany
| | | | - Anna-Leena Sirén
- Department of Neurosurgery, University Hospital Würzburg Würzburg, Germany
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40
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Steen A, Larsen O, Thiele S, Rosenkilde MM. Biased and g protein-independent signaling of chemokine receptors. Front Immunol 2014; 5:277. [PMID: 25002861 PMCID: PMC4066200 DOI: 10.3389/fimmu.2014.00277] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 05/28/2014] [Indexed: 01/14/2023] Open
Abstract
Biased signaling or functional selectivity occurs when a 7TM-receptor preferentially activates one of several available pathways. It can be divided into three distinct forms: ligand bias, receptor bias, and tissue or cell bias, where it is mediated by different ligands (on the same receptor), different receptors (with the same ligand), or different tissues or cells (for the same ligand–receptor pair). Most often biased signaling is differentiated into G protein-dependent and β-arrestin-dependent signaling. Yet, it may also cover signaling differences within these groups. Moreover, it may not be absolute, i.e., full versus no activation. Here we discuss biased signaling in the chemokine system, including the structural basis for biased signaling in chemokine receptors, as well as in class A 7TM receptors in general. This includes overall helical movements and the contributions of micro-switches based on recently published 7TM crystals and molecular dynamics studies. All three forms of biased signaling are abundant in the chemokine system. This challenges our understanding of “classic” redundancy inevitably ascribed to this system, where multiple chemokines bind to the same receptor and where a single chemokine may bind to several receptors – in both cases with the same functional outcome. The ubiquitous biased signaling confers a hitherto unknown specificity to the chemokine system with a complex interaction pattern that is better described as promiscuous with context-defined roles and different functional outcomes in a ligand-, receptor-, or cell/tissue-defined manner. As the low number of successful drug development plans implies, there are great difficulties in targeting chemokine receptors; in particular with regard to receptor antagonists as anti-inflammatory drugs. Un-defined and putative non-selective targeting of the complete cellular signaling system could be the underlying cause of lack of success. Therefore, biased ligands could be the solution.
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Affiliation(s)
- Anne Steen
- Laboratory for Molecular Pharmacology, Department of Neuroscience and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Olav Larsen
- Laboratory for Molecular Pharmacology, Department of Neuroscience and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Stefanie Thiele
- Laboratory for Molecular Pharmacology, Department of Neuroscience and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Mette M Rosenkilde
- Laboratory for Molecular Pharmacology, Department of Neuroscience and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
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Nguyen A, Ho L, Wan Y. Chemotherapy and Oncolytic Virotherapy: Advanced Tactics in the War against Cancer. Front Oncol 2014; 4:145. [PMID: 24967214 PMCID: PMC4052116 DOI: 10.3389/fonc.2014.00145] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 05/28/2014] [Indexed: 01/10/2023] Open
Abstract
Cancer is a traitorous archenemy that threatens our survival. Its ability to evade detection and adapt to various cancer therapies means that it is a moving target that becomes increasingly difficult to attack. Through technological advancements, we have developed sophisticated weapons to fight off tumor growth and invasion. However, if we are to stand a chance in this war against cancer, advanced tactics will be required to maximize the use of our available resources. Oncolytic viruses (OVs) are multi-functional cancer-fighters that can be engineered to suit many different strategies; in particular, their retooling can facilitate increased capacity for direct tumor killing (oncolytic virotherapy) and elicit adaptive antitumor immune responses (oncolytic immunotherapy). However, administration of these modified OVs alone, rarely induces successful regression of established tumors. This may be attributed to host antiviral immunity that acts to eliminate viral particles, as well as the capacity for tumors to adapt to therapeutic selective pressure. It has been shown that various chemotherapeutic drugs with distinct functional properties can potentiate the antitumor efficacy of OVs. In this review, we summarize the chemotherapeutic combinatorial strategies used to optimize virally induced destruction of tumors. With a particular focus on pharmaceutical immunomodulators, we discuss how specific therapeutic contexts may alter the effects of these synergistic combinations and their implications for future clinical use.
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Affiliation(s)
- Andrew Nguyen
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, McMaster University , Hamilton, ON , Canada
| | - Louisa Ho
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, McMaster University , Hamilton, ON , Canada
| | - Yonghong Wan
- Department of Pathology and Molecular Medicine, McMaster Immunology Research Centre, McMaster University , Hamilton, ON , Canada
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Endothelial Activation and Chemoattractant Expression are Early Processes in Isolated Blast Brain Injury. Neuromolecular Med 2014; 16:606-19. [DOI: 10.1007/s12017-014-8313-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 05/14/2014] [Indexed: 01/03/2023]
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43
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Identification of macrophage genes responsive to extracellular acidification. Inflamm Res 2013; 62:399-406. [PMID: 23417272 DOI: 10.1007/s00011-013-0591-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 12/06/2012] [Accepted: 01/02/2013] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE A low pH microenvironment is a characteristic feature of inflammation loci and affects the functions of immune cells. In this study, we investigated the effect of extracellular acidification on macrophage gene expression. METHODS RAW264.7 macrophages were incubated in neutral (pH 7.4) or acidic (pH 6.8) medium for 4 h. Global mRNA expression levels were determined using Affymetrix genechips. RESULTS The mRNA expressions of 353 macrophage genes were significantly modified after incubation in acidic medium; 193 were up-regulated and 160 down-regulated. Differentially regulated genes were grouped into 13 classes based on the functions of the corresponding protein products. Pathway analysis revealed that differentially expressed genes are enriched in pathways related to inflammation and immune responses. Quantitative real-time PCR analysis confirmed that the expressions of CXCL10, CXCL14, IL-18, IL-4RA, ABCA1, CCL4, IL-7R, CXCR4, TLR7, and CCL3 mRNAs were regulated by extracellular acidification. CONCLUSION The results of this study provide insights into the effects of acidic extracellular environments on macrophage gene expression.
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Reichel CA, Kanse SM, Krombach F. At the interface of fibrinolysis and inflammation: the role of urokinase-type plasminogen activator in the leukocyte extravasation cascade. Trends Cardiovasc Med 2012; 22:192-6. [PMID: 23062972 DOI: 10.1016/j.tcm.2012.07.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Leukocyte recruitment to the site of inflammation is a key event in the pathogenesis of cardiovascular diseases. This highly regulated process is tightly controlled by a variety of adhesion/signaling molecules, chemokines, and proteases specifically mediating the sequential steps in the leukocyte extravasation cascade. In addition to its prominent role in the fibrinolytic system, urokinase-type plasminogen activator (uPA) has been implicated in different physiological and pathophysiological processes, including cell adhesion and migration. This review focuses on the emerging role of uPA in the leukocyte recruitment process.
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Affiliation(s)
- Christoph A Reichel
- Department of Otorhinolaryngology, Head and Neck Surgery, Klinikum der Universität München, Ludwig-Maximilians-Universität München, D-81366 Munich, Germany.
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