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Siciliano MC, Bertolazzi G, Morello G, Tornambè S, Del Corvo M, Granai M, Sapienza MR, Leahy CI, Fennell E, Belmonte B, Arcuri F, Vannucchi M, Mancini V, Guazzo R, Boccacci R, Onyango N, Nyagol J, Santi R, Di Stefano G, Ferrara D, Bellan C, Marafioti T, Ott G, Siebert R, Quintanilla-Fend L, Fend F, Murray P, Tripodo C, Pileri S, Lazzi S, Leoncini L. Tumor microenvironment of Burkitt lymphoma: different immune signatures with different clinical behavior. Blood Adv 2024; 8:4330-4343. [PMID: 38861355 PMCID: PMC11372814 DOI: 10.1182/bloodadvances.2023011506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/13/2024] Open
Abstract
ABSTRACT Burkitt lymphoma (BL) is characterized by a tumor microenvironment (TME) in which macrophages represent the main component, determining a distinct histological appearance known as "starry sky" pattern. However, in some instances, BL may exhibit a granulomatous reaction that has been previously linked to favorable prognosis and spontaneous regression. The aim of our study was to deeply characterize the immune landscape of 7 cases of Epstein-Barr virus-positive (EBV+) BL with granulomatous reaction compared with 8 cases of EBV+ BL and 8 EBV-negative (EBV-) BL, both with typical starry sky pattern, by Gene expression profiling performed on the NanoString nCounter platform. Subsequently, the data were validated using multiplex and combined immunostaining. Based on unsupervised clustering of differentially expressed genes, BL samples formed 3 distinct clusters differentially enriched in BL with a diffuse granulomatous reaction (cluster 1), EBV+ BL with typical starry sky pattern (cluster 2), EBV- BL with typical "starry sky" (cluster 3). We observed variations in the immune response signature among BL with granulomatous reaction and BL with typical "starry sky," both EBV+ and EBV-. The TME signature in BL with diffuse granulomatous reaction showed a proinflammatory response, whereas BLs with "starry sky" were characterized by upregulation of M2 polarization and protumor response. Moreover, the analysis of additional signatures revealed an upregulation of the dark zone signature and epigenetic signature in BL with a typical starry sky. Tumor-associated macrophages and epigenetic regulators may be promising targets for additional therapies for BL lymphoma, opening novel immunotherapeutic strategies.
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Affiliation(s)
| | - Giorgio Bertolazzi
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
- Department of Economics, Business, and Statistics, University of Palermo, Palermo, Italy
| | - Gaia Morello
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Salvatore Tornambè
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Massimo Granai
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Ciara I Leahy
- School of Medicine, Bernal Institute, Health Research Institute and Limerick Digital Cancer Research Centre, University of Limerick, Limerick, Ireland
| | - Eanna Fennell
- School of Medicine, Bernal Institute, Health Research Institute and Limerick Digital Cancer Research Centre, University of Limerick, Limerick, Ireland
| | - Beatrice Belmonte
- Tumor Immunology Unit, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Felice Arcuri
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Virginia Mancini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Raffaella Guazzo
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Roberto Boccacci
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Noel Onyango
- Department of Medical Microbiology and Immunology, University of Nairobi, Nairobi, Kenya
| | - Joshua Nyagol
- Department of Human Pathology, University of Nairobi, Nairobi, Kenya
| | - Raffaella Santi
- Department of Pathology, University of Florence, Florence, Italy
| | - Gioia Di Stefano
- Department of Pathology, University of Florence, Florence, Italy
| | - Domenico Ferrara
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Cristiana Bellan
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Teresa Marafioti
- Department of Cellular Pathology, University College London, London, United Kingdom
| | - German Ott
- AbteilungfürKlinischePathologie, Robert-Bosch-Krankenhaus and Dr. Margarete Fischer-Bosch InstitutfürKlinischePharmakologie, Stuttgart, Germany
| | - Reiner Siebert
- Institute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany
| | | | - Falko Fend
- Institut für Pathologie und Neuropathologie, University of Tubingen, Tubingen, Germany
| | - Paul Murray
- School of Medicine, Bernal Institute, Health Research Institute and Limerick Digital Cancer Research Centre, University of Limerick, Limerick, Ireland
| | - Claudio Tripodo
- School of Medicine, Bernal Institute, Health Research Institute and Limerick Digital Cancer Research Centre, University of Limerick, Limerick, Ireland
- Tumor and Microenvironment Histopathology Unit, IFOM, the FIRC Institute of Molecular Oncology, Milan, Italy
| | - Stefano Pileri
- Istituto Europeo di Oncologia (IEO), IRCSS Milano, Milan, Italy
| | - Stefano Lazzi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Lorenzo Leoncini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
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2
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Zhang F, Cui Y, Zhang T, Yin W. Epigenetic regulation of macrophage activation in chronic obstructive pulmonary disease. Front Immunol 2024; 15:1445372. [PMID: 39206196 PMCID: PMC11349576 DOI: 10.3389/fimmu.2024.1445372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024] Open
Abstract
Macrophages in the innate immune system play a vital role in various lung diseases such as asthma, chronic obstructive pulmonary disease (COPD), acute lung injury and pulmonary fibrosis. Macrophages involved in the process of immunity need to go through a process of activation, including changes in gene expression and cell metabolism. Epigenetic modifications are key factors of macrophage activation including DNA methylation, histone modification and non-coding RNA regulation. Understanding the role and mechanisms of epigenetic regulation of macrophage activation can provide insights into the function of macrophages in lung diseases and help identification of potential therapeutic targets. This review summarizes the latest progress in the epigenetic changes and regulation of macrophages in their development process and in normal physiological states, and the epigenetic regulation of macrophages in COPD as well as the influence of macrophage activation on COPD development.
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Affiliation(s)
- Feng Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University (GMU) - Guangzhou Institutes of Biomedicine and Health (GIBH) Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
- Guangzhou National Laboratory, Guangzhou International Bio Island, Guangzhou, Guangdong, China
| | - Yachao Cui
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University (GMU) - Guangzhou Institutes of Biomedicine and Health (GIBH) Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
- Guangzhou National Laboratory, Guangzhou International Bio Island, Guangzhou, Guangdong, China
| | - Tiejun Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University (GMU) - Guangzhou Institutes of Biomedicine and Health (GIBH) Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
- The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, Guangzhou Medical University Affiliated Qingyuan Hospital, Qingyuan People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenguang Yin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University (GMU) - Guangzhou Institutes of Biomedicine and Health (GIBH) Joint School of Life Sciences, Guangzhou Medical University, Guangzhou, Guangdong, China
- Guangzhou National Laboratory, Guangzhou International Bio Island, Guangzhou, Guangdong, China
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3
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Ngwa C, Al Mamun A, Qi S, Sharmeen R, Conesa MPB, Ganesh BP, Manwani B, Liu F. Central IRF4/5 Signaling Are Critical for Microglial Activation and Impact on Stroke Outcomes. Transl Stroke Res 2024; 15:831-843. [PMID: 37432594 PMCID: PMC10782817 DOI: 10.1007/s12975-023-01172-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/23/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023]
Abstract
Microglia and monocytes play a critical role in immune responses to cerebral ischemia. Previous studies have demonstrated that interferon regulatory factor 4 (IRF4) and IRF5 direct microglial polarization after stroke and impact outcomes. However, IRF4/5 are expressed by both microglia and monocytes, and it is not clear if it is the microglial (central) or monocytic (peripheral) IRF4-IRF5 regulatory axis that functions in stroke. In this work, young (8-12 weeks) male pep boy (PB), IRF4 or IRF5 flox, and IRF4 or IRF5 conditional knockout (CKO) mice were used to generate 8 types of bone marrow chimeras, to differentiate the role of central (PB-to-IRF CKO) vs. peripheral (IRF CKO-to-PB) phagocytic IRF4-IRF5 axis in stroke. Chimeras generated from PB and flox mice were used as controls. All chimeras were subjected to 60-min middle cerebral artery occlusion (MCAO) model. Three days after the stroke, outcomes and inflammatory responses were analyzed. We found that PB-to-IRF4 CKO chimeras had more robust microglial pro-inflammatory responses than IRF4 CKO-to-PB chimeras, while ameliorated microglial response was seen in PB-to-IRF5 CKO vs. IRF5 CKO-to-PB chimeras. PB-to-IRF4 or IRF5 CKO chimeras had worse or better stroke outcomes respectively than their controls, whereas IRF4 or 5 CKO-to-PB chimeras had similar outcomes compared to controls. We conclude that the central IRF4/5 signaling is responsible for microglial activation and mediates stroke outcomes.
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Affiliation(s)
- Conelius Ngwa
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Abdullah Al Mamun
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Shaohua Qi
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Romana Sharmeen
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Maria P Blasco Conesa
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Bhanu P Ganesh
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Bharti Manwani
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Fudong Liu
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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Weiss A, D'Amata C, Pearson BJ, Hayes MN. A syngeneic spontaneous zebrafish model of tp53-deficient, EGFR vIII, and PI3KCA H1047R-driven glioblastoma reveals inhibitory roles for inflammation during tumor initiation and relapse in vivo. eLife 2024; 13:RP93077. [PMID: 39052000 PMCID: PMC11272161 DOI: 10.7554/elife.93077] [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] [Indexed: 07/27/2024] Open
Abstract
High-throughput vertebrate animal model systems for the study of patient-specific biology and new therapeutic approaches for aggressive brain tumors are currently lacking, and new approaches are urgently needed. Therefore, to build a patient-relevant in vivo model of human glioblastoma, we expressed common oncogenic variants including activated human EGFRvIII and PI3KCAH1047R under the control of the radial glial-specific promoter her4.1 in syngeneic tp53 loss-of-function mutant zebrafish. Robust tumor formation was observed prior to 45 days of life, and tumors had a gene expression signature similar to human glioblastoma of the mesenchymal subtype, with a strong inflammatory component. Within early stage tumor lesions, and in an in vivo and endogenous tumor microenvironment, we visualized infiltration of phagocytic cells, as well as internalization of tumor cells by mpeg1.1:EGFP+ microglia/macrophages, suggesting negative regulatory pressure by pro-inflammatory cell types on tumor growth at early stages of glioblastoma initiation. Furthermore, CRISPR/Cas9-mediated gene targeting of master inflammatory transcription factors irf7 or irf8 led to increased tumor formation in the primary context, while suppression of phagocyte activity led to enhanced tumor cell engraftment following transplantation into otherwise immune-competent zebrafish hosts. Altogether, we developed a genetically relevant model of aggressive human glioblastoma and harnessed the unique advantages of zebrafish including live imaging, high-throughput genetic and chemical manipulations to highlight important tumor-suppressive roles for the innate immune system on glioblastoma initiation, with important future opportunities for therapeutic discovery and optimizations.
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Affiliation(s)
- Alex Weiss
- Developmental and Stem Cell Biology Program, The Hospital for Sick ChildrenTorontoCanada
| | - Cassandra D'Amata
- Developmental and Stem Cell Biology Program, The Hospital for Sick ChildrenTorontoCanada
| | - Bret J Pearson
- Department of Molecular Genetics, University of TorontoTorontoCanada
- Knight Cancer Institute, Oregon Health & Science UniversityPortlandUnited States
- Department of Pediatrics, Papé Research Institute, Oregon Health & Science UniversityPortlandUnited States
| | - Madeline N Hayes
- Developmental and Stem Cell Biology Program, The Hospital for Sick ChildrenTorontoCanada
- Department of Molecular Genetics, University of TorontoTorontoCanada
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5
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Dal-Fabbro R, Yu M, Mei L, Sasaki H, Schwendeman A, Bottino MC. Synthetic high-density lipoprotein (sHDL): a bioinspired nanotherapeutics for managing periapical bone inflammation. Int J Oral Sci 2024; 16:50. [PMID: 38956025 PMCID: PMC11219839 DOI: 10.1038/s41368-024-00316-w] [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: 11/27/2023] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 07/04/2024] Open
Abstract
Apical periodontitis (AP) is a dental-driven condition caused by pathogens and their toxins infecting the inner portion of the tooth (i.e., dental pulp tissue), resulting in inflammation and apical bone resorption affecting 50% of the worldwide population, with more than 15 million root canals performed annually in the United States. Current treatment involves cleaning and decontaminating the infected tissue with chemo-mechanical approaches and materials introduced years ago, such as calcium hydroxide, zinc oxide-eugenol, or even formalin products. Here, we present, for the first time, a nanotherapeutics based on using synthetic high-density lipoprotein (sHDL) as an innovative and safe strategy to manage dental bone inflammation. sHDL application in concentrations ranging from 25 µg to 100 µg/mL decreases nuclear factor Kappa B (NF-κB) activation promoted by an inflammatory stimulus (lipopolysaccharide, LPS). Moreover, sHDL at 500 µg/mL concentration markedly decreases in vitro osteoclastogenesis (P < 0.001), and inhibits IL-1α (P = 0.027), TNF-α (P = 0.004), and IL-6 (P < 0.001) production in an inflammatory state. Notably, sHDL strongly dampens the Toll-Like Receptor signaling pathway facing LPS stimulation, mainly by downregulating at least 3-fold the pro-inflammatory genes, such as Il1b, Il1a, Il6, Ptgs2, and Tnf. In vivo, the lipoprotein nanoparticle applied after NaOCl reduced bone resorption volume to (1.3 ± 0.05) mm3 and attenuated the inflammatory reaction after treatment to (1 090 ± 184) cells compared to non-treated animals that had (2.9 ± 0.6) mm3 (P = 0.012 3) and (2 443 ± 931) cells (P = 0.004), thus highlighting its promising clinical potential as an alternative therapeutic for managing dental bone inflammation.
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Affiliation(s)
- Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Minzhi Yu
- Department of Pharmaceutical Sciences, College of Pharmacy and Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Ling Mei
- Department of Pharmaceutical Sciences, College of Pharmacy and Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Hajime Sasaki
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, College of Pharmacy and Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, USA.
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6
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Lin DL, Magnaye KM, Porsche CE, Levan SR, Rackaityte E, Özçam M, Lynch SV. 12,13-diHOME Promotes Inflammatory Macrophages and Epigenetically Modifies Their Capacity to Respond to Microbes and Allergens. J Immunol Res 2024; 2024:2506586. [PMID: 38974097 PMCID: PMC11227377 DOI: 10.1155/2024/2506586] [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: 12/21/2023] [Revised: 05/10/2024] [Accepted: 05/25/2024] [Indexed: 07/09/2024] Open
Abstract
Elevated infant fecal concentrations of the bacterial-derived lipid 12,13-dihydroxy-9Z-octadecenoic acid (12,13-diHOME) increase the risk for childhood atopy and asthma. However, the mechanisms by which this lipid contributes to disease development are largely unknown. We hypothesized that macrophages, which are key to both antimicrobial and antigen responses, are functionally and epigenetically modified by 12,13-diHOME leading to short- and long-term dysfunction with consequences for both antimicrobial and antigenic responses. Macrophages exposed to 12,13-diHOME are skewed toward inflammatory IL-1β highCD206low cells, a phenomenon that is further amplified in the presence of common microbial-, aero-, and food-allergens. These IL-1β highCD206low macrophages also exhibit reduced bacterial phagocytic capacity. In primary immune cell coculture assays involving peanut allergen stimulation, 12,13-diHOME promotes both IL-1β and IL-6 production, memory B cell expansion, and increased IgE production. Exposure to 12,13-diHOME also induces macrophage chromatin remodeling, specifically diminishing access to interferon-stimulated response elements resulting in reduced interferon-regulated gene expression upon bacterial lipopolysaccharide stimulation. Thus 12,13-diHOME reprograms macrophage effector function, B-cell interactions and promotes epigenetic modifications that exacerbate inflammatory response to allergens and mutes antimicrobial response along the interferon axis. These observations offer plausible mechanisms by which this lipid promotes early-life pathogenic microbiome development and innate immune dysfunction associated with childhood allergic sensitization.
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Affiliation(s)
- Din L. Lin
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
| | - Kevin M. Magnaye
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
| | - Cara E. Porsche
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
| | - Sophia R. Levan
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
| | - Elze Rackaityte
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
| | - Mustafa Özçam
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
| | - Susan V. Lynch
- Division of GastroenterologyDepartment of MedicineUniversity of California, San Francisco, CA 94143, USA
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Orsenigo F, Stewart A, Hammer CP, Clarke E, Simpkin D, Attia H, Rockall T, Gordon S, Martinez FO. Unifying considerations and evidence of macrophage activation mosaicism through human CSF1R and M1/M2 genes. Cell Rep 2024; 43:114352. [PMID: 38870011 DOI: 10.1016/j.celrep.2024.114352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/02/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
Addressing the mononuclear phagocyte system (MPS) and macrophage M1/M2 activation is important in diagnosing hematological disorders and inflammatory pathologies and designing therapeutic tools. CSF1R is a reliable marker to identify all circulating MPS cells and tissue macrophages in humans using a single surface protein. CSF1R permits the quantification and isolation of monocyte and dendritic cell (DC) subsets in conjunction with CD14, CD16, and CD1c and is stable across the lifespan and sexes in the absence of overt pathology. Beyond cell detection, measuring M1/M2 activation in humans poses challenges due to response heterogeneity, transient signaling, and multiple regulation steps for transcripts and proteins. MPS cells respond in a conserved manner to M1/M2 pathways such as interleukin-4 (IL-4), steroids, interferon-γ (IFNγ), and lipopolysaccharide (LPS), for which we propose an ad hoc modular gene expression tool. Signature analysis highlights macrophage activation mosaicism in experimental samples, an emerging concept that points to mixed macrophage activation states in pathology.
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Affiliation(s)
- Federica Orsenigo
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK
| | - Alexander Stewart
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK; Virology Department, Animal and Plant Health Agency, APHA-Weybridge, KT15 3NB Addlestone, UK
| | - Clare P Hammer
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK; Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Emma Clarke
- Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Daniel Simpkin
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK
| | - Hossameldin Attia
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK; Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Timothy Rockall
- Royal Surrey County Hospital NHS Foundation Trust, GU2 7XX Guildford, UK
| | - Siamon Gordon
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan; Sir William Dunn School of Pathology, University of Oxford, OX13RE Oxford, UK
| | - Fernando O Martinez
- Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK.
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8
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Yang B, Hang S, Xu S, Gao Y, Yu W, Zang G, Zhang L, Wang Z. Macrophage polarisation and inflammatory mechanisms in atherosclerosis: Implications for prevention and treatment. Heliyon 2024; 10:e32073. [PMID: 38873669 PMCID: PMC11170185 DOI: 10.1016/j.heliyon.2024.e32073] [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: 11/11/2023] [Revised: 05/11/2024] [Accepted: 05/28/2024] [Indexed: 06/15/2024] Open
Abstract
Atherosclerosis is a chronic inflammatory disease characterised by plaque accumulation in the arteries. Macrophages are immune cells that are crucial in the development of atherosclerosis. Macrophages can adopt different phenotypes, with the M1 phenotype promoting inflammation while the M2 phenotype counteracting it. This review focuses on the factors that drive the polarisation of M1 macrophages towards a pro-inflammatory phenotype during AS. Additionally, we explored metabolic reprogramming mechanisms and cytokines secretion by M1 macrophages. Hyperlipidaemia is widely recognised as a major risk factor for atherosclerosis. Modified lipoproteins released in the presence of hyperlipidaemia can trigger the release of cytokines and recruit circulating monocytes, which adhere to the damaged endothelium and differentiate into macrophages. Macrophages engulf lipids, leading to the formation of foam cells. As atherosclerosis progresses, foam cells become the necrotic core within the atherosclerotic plaques, destabilising them and triggering ischaemic disease. Furthermore, we discuss recent research focusing on targeting macrophages or inflammatory pathways for preventive or therapeutic purposes. These include statins, PCSK9 inhibitors, and promising nanotargeted drugs. These new developments hold the potential for the prevention and treatment of atherosclerosis and its related complications.
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Affiliation(s)
- Bo Yang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Sanhua Hang
- Department of Hematology, Affiliated Danyang Hospital of Nantong University, Danyang, 212300, China
| | - Siting Xu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Yun Gao
- Department of Pathology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Wenhua Yu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Guangyao Zang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Lili Zhang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, 212001, China
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9
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Rebboah E, Rezaie N, Williams BA, Weimer AK, Shi M, Yang X, Liang HY, Dionne LA, Reese F, Trout D, Jou J, Youngworth I, Reinholdt L, Morabito S, Snyder MP, Wold BJ, Mortazavi A. The ENCODE mouse postnatal developmental time course identifies regulatory programs of cell types and cell states. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.12.598567. [PMID: 38915583 PMCID: PMC11195270 DOI: 10.1101/2024.06.12.598567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Postnatal genomic regulation significantly influences tissue and organ maturation but is under-studied relative to existing genomic catalogs of adult tissues or prenatal development in mouse. The ENCODE4 consortium generated the first comprehensive single-nucleus resource of postnatal regulatory events across a diverse set of mouse tissues. The collection spans seven postnatal time points, mirroring human development from childhood to adulthood, and encompasses five core tissues. We identified 30 cell types, further subdivided into 69 subtypes and cell states across adrenal gland, left cerebral cortex, hippocampus, heart, and gastrocnemius muscle. Our annotations cover both known and novel cell differentiation dynamics ranging from early hippocampal neurogenesis to a new sex-specific adrenal gland population during puberty. We used an ensemble Latent Dirichlet Allocation strategy with a curated vocabulary of 2,701 regulatory genes to identify regulatory "topics," each of which is a gene vector, linked to cell type differentiation, subtype specialization, and transitions between cell states. We find recurrent regulatory topics in tissue-resident macrophages, neural cell types, endothelial cells across multiple tissues, and cycling cells of the adrenal gland and heart. Cell-type-specific topics are enriched in transcription factors and microRNA host genes, while chromatin regulators dominate mitosis topics. Corresponding chromatin accessibility data reveal dynamic and sex-specific regulatory elements, with enriched motifs matching transcription factors in regulatory topics. Together, these analyses identify both tissue-specific and common regulatory programs in postnatal development across multiple tissues through the lens of the factors regulating transcription.
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Affiliation(s)
- Elisabeth Rebboah
- Developmental and Cell Biology, University of California Irvine, Irvine, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, USA
| | - Narges Rezaie
- Developmental and Cell Biology, University of California Irvine, Irvine, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, USA
| | - Brian A. Williams
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, USA
| | - Annika K. Weimer
- Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, USA
| | - Minyi Shi
- Department of Next Generation Sequencing and Microchemistry, Proteomics and Lipidomics, Genentech, San Francisco, USA
| | - Xinqiong Yang
- Department of Genetics, Stanford University School of Medicine, Palo Alto, USA
| | - Heidi Yahan Liang
- Developmental and Cell Biology, University of California Irvine, Irvine, USA
| | | | - Fairlie Reese
- Developmental and Cell Biology, University of California Irvine, Irvine, USA
| | - Diane Trout
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, USA
| | - Jennifer Jou
- Department of Genetics, Stanford University School of Medicine, Palo Alto, USA
| | - Ingrid Youngworth
- Department of Genetics, Stanford University School of Medicine, Palo Alto, USA
| | | | - Samuel Morabito
- Developmental and Cell Biology, University of California Irvine, Irvine, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, USA
| | - Michael P. Snyder
- Department of Genetics, Stanford University School of Medicine, Palo Alto, USA
| | - Barbara J. Wold
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, USA
| | - Ali Mortazavi
- Developmental and Cell Biology, University of California Irvine, Irvine, USA
- Center for Complex Biological Systems, University of California Irvine, Irvine, USA
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10
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Choi JY, Byeon HW, Park SO, Uyangaa E, Kim K, Eo SK. Inhibition of NADPH oxidase 2 enhances resistance to viral neuroinflammation by facilitating M1-polarization of macrophages at the extraneural tissues. J Neuroinflammation 2024; 21:115. [PMID: 38698374 PMCID: PMC11067137 DOI: 10.1186/s12974-024-03078-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/27/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Macrophages play a pivotal role in the regulation of Japanese encephalitis (JE), a severe neuroinflammation in the central nervous system (CNS) following infection with JE virus (JEV). Macrophages are known for their heterogeneity, polarizing into M1 or M2 phenotypes in the context of various immunopathological diseases. A comprehensive understanding of macrophage polarization and its relevance to JE progression holds significant promise for advancing JE control and therapeutic strategies. METHODS To elucidate the role of NADPH oxidase-derived reactive oxygen species (ROS) in JE progression, we assessed viral load, M1 macrophage accumulation, and cytokine production in WT and NADPH oxidase 2 (NOX2)-deficient mice using murine JE model. Additionally, we employed bone marrow (BM) cell-derived macrophages to delineate ROS-mediated regulation of macrophage polarization by ROS following JEV infection. RESULTS NOX2-deficient mice exhibited increased resistance to JE progression rather than heightened susceptibility, driven by the regulation of macrophage polarization. These mice displayed reduced viral loads in peripheral lymphoid tissues and the CNS, along with diminished infiltration of inflammatory cells into the CNS, thereby resulting in attenuated neuroinflammation. Additionally, NOX2-deficient mice exhibited enhanced JEV-specific Th1 CD4 + and CD8 + T cell responses and increased accumulation of M1 macrophages producing IL-12p40 and iNOS in peripheral lymphoid and inflamed extraneural tissues. Mechanistic investigations revealed that NOX2-deficient macrophages displayed a more pronounced differentiation into M1 phenotypes in response to JEV infection, thereby leading to the suppression of viral replication. Importantly, the administration of H2O2 generated by NOX2 was shown to inhibit M1 macrophage polarization. Finally, oral administration of the ROS scavenger, butylated hydroxyanisole (BHA), bolstered resistance to JE progression and reduced viral loads in both extraneural tissues and the CNS, along with facilitated accumulation of M1 macrophages. CONCLUSION In light of our results, it is suggested that ROS generated by NOX2 play a role in undermining the control of JEV replication within peripheral extraneural tissues, primarily by suppressing M1 macrophage polarization. Subsequently, this leads to an augmentation in the viral load invading the CNS, thereby facilitating JE progression. Hence, our findings ultimately underscore the significance of ROS-mediated macrophage polarization in the context of JE progression initiated JEV infection.
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Affiliation(s)
- Jin Young Choi
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Hee Won Byeon
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Seong Ok Park
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Erdenebileg Uyangaa
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Koanhoi Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Seong Kug Eo
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea.
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11
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Baig MS, Barmpoutsi S, Bharti S, Weigert A, Hirani N, Atre R, Khabiya R, Sharma R, Sarup S, Savai R. Adaptor molecules mediate negative regulation of macrophage inflammatory pathways: a closer look. Front Immunol 2024; 15:1355012. [PMID: 38482001 PMCID: PMC10933033 DOI: 10.3389/fimmu.2024.1355012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/22/2024] [Indexed: 04/13/2024] Open
Abstract
Macrophages play a central role in initiating, maintaining, and terminating inflammation. For that, macrophages respond to various external stimuli in changing environments through signaling pathways that are tightly regulated and interconnected. This process involves, among others, autoregulatory loops that activate and deactivate macrophages through various cytokines, stimulants, and other chemical mediators. Adaptor proteins play an indispensable role in facilitating various inflammatory signals. These proteins are dynamic and flexible modulators of immune cell signaling and act as molecular bridges between cell surface receptors and intracellular effector molecules. They are involved in regulating physiological inflammation and also contribute significantly to the development of chronic inflammatory processes. This is at least partly due to their involvement in the activation and deactivation of macrophages, leading to changes in the macrophages' activation/phenotype. This review provides a comprehensive overview of the 20 adaptor molecules and proteins that act as negative regulators of inflammation in macrophages and effectively suppress inflammatory signaling pathways. We emphasize the functional role of adaptors in signal transduction in macrophages and their influence on the phenotypic transition of macrophages from pro-inflammatory M1-like states to anti-inflammatory M2-like phenotypes. This endeavor mainly aims at highlighting and orchestrating the intricate dynamics of adaptor molecules by elucidating the associated key roles along with respective domains and opening avenues for therapeutic and investigative purposes in clinical practice.
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Affiliation(s)
- Mirza S. Baig
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Indore, India
| | - Spyridoula Barmpoutsi
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
| | - Shreya Bharti
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Indore, India
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, Frankfurt, Germany
- Frankfurt Cancer Institute (FCI), Goethe University Frankfurt, Frankfurt, Germany
| | - Nik Hirani
- MRC Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Rajat Atre
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Indore, India
| | - Rakhi Khabiya
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Indore, India
| | - Rahul Sharma
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Indore, India
| | - Shivmuni Sarup
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Indore, India
| | - Rajkumar Savai
- Lung Microenvironmental Niche in Cancerogenesis, Institute for Lung Health (ILH), Justus Liebig University, Giessen, Germany
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Frankfurt Cancer Institute (FCI), Goethe University Frankfurt, Frankfurt, Germany
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12
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Cyndari KI, Scorza BM, Zacharias ZR, Strand L, Mahachi K, Oviedo JM, Gibbs L, Pessoa-Pereira D, Ausdal G, Hendricks D, Yahashiri R, Elkins JM, Gulbrandsen T, Peterson AR, Willey MC, Fairfax KC, Petersen CA. Resident Synovial Macrophages in Synovial Fluid: Implications for Immunoregulation in Infectious and Inflammatory Arthritis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.09.29.560183. [PMID: 37873090 PMCID: PMC10592878 DOI: 10.1101/2023.09.29.560183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Objectives Resident synovial macrophages (RSM) provide immune sequestration of the joint space and are likely involved in initiation and perpetuation of the joint-specific immune response. We sought to identify RSM in synovial fluid (SF) and demonstrate migratory ability, in additional to functional changes that may perpetuate a chronic inflammatory response within joint spaces. Methods We recruited human patients presenting with undifferentiated arthritis in multiple clinical settings. We used flow cytometry to identify mononuclear cells in peripheral blood and SF. We used a novel transwell migration assay with human ex-vivo synovium obtained intra-operatively to validate flow cytometry findings. We used single cell RNA-sequencing (scRNA-seq) to further identify macrophage/monocyte subsets. ELISA was used to evaluate the bone-resorption potential of SF. Results We were able to identify a rare population of CD14dim, OPG+, ZO-1+ cells consistent with RSM in SF via flow cytometry. These cells were relatively enriched in the SF during infectious processes, but absolutely decreased compared to healthy controls. Similar putative RSM were identified using ex vivo migration assays when MCP-1 and LPS were used as migratory stimulus. scRNA-seq revealed a population consistent with RSM transcriptionally related to CD56+ cytotoxic dendritic cells and IDO+ M2 macrophages. Conclusion We identified a rare cell population consistent with RSM, indicating these cells are likely migratory and able to initiate or coordinate both acute (septic) or chronic (autoimmune or inflammatory) arthritis. RSM analysis via scRNA-seq indicated these cells are M2 skewed, capable of antigen presentation, and have consistent functions in both septic and inflammatory arthritis.
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Affiliation(s)
- Karen I Cyndari
- Department of Emergency Medicine, University of Iowa, Iowa City, IA
- Center for Emerging Infectious Diseases
| | - Breanna M Scorza
- Center for Emerging Infectious Diseases
- Department of Epidemiology, University of Iowa, Iowa City, IA
| | - Zeb R Zacharias
- Human Immunology Core, University of Iowa, Iowa City, IA
- Holden Comprehensive Cancer Center, Iowa City, IA
| | | | - Kurayi Mahachi
- Research and Analytics, Enterprise Analytics, Sentara Health
| | | | - Lisa Gibbs
- Department of Pathology, University of Utah, Salt Lake City, UT
| | - Danielle Pessoa-Pereira
- Center for Emerging Infectious Diseases
- Department of Epidemiology, University of Iowa, Iowa City, IA
| | - Graham Ausdal
- Center for Emerging Infectious Diseases
- Department of Epidemiology, University of Iowa, Iowa City, IA
| | - Dylan Hendricks
- Center for Emerging Infectious Diseases
- Department of Epidemiology, University of Iowa, Iowa City, IA
| | | | - Jacob M Elkins
- Department of Orthopedics, University of Iowa, Iowa City, IA
| | | | | | | | - Keke C Fairfax
- Department of Pathology, University of Utah, Salt Lake City, UT
| | - Christine A Petersen
- Center for Emerging Infectious Diseases
- Department of Epidemiology, University of Iowa, Iowa City, IA
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13
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Stachowicz-Suhs M, Łabędź N, Anisiewicz A, Banach J, Kłopotowska D, Milczarek M, Piotrowska A, Dzięgiel P, Maciejczyk A, Matkowski R, Wietrzyk J. Calcitriol promotes M2 polarization of tumor-associated macrophages in 4T1 mouse mammary gland cancer via the induction of proinflammatory cytokines. Sci Rep 2024; 14:3778. [PMID: 38355711 PMCID: PMC10866890 DOI: 10.1038/s41598-024-54433-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: 10/31/2023] [Accepted: 02/13/2024] [Indexed: 02/16/2024] Open
Abstract
Our research found that vitamin D3 (VD3) treatment increased lung metastasis in mice with 4T1 murine breast cancer (BC). This study aims to investigate the impact of VD3 on the activation of tumor-associated macrophages (TAMs) in BC. Mice bearing 4T1, E0771, 67NR BC cells, and healthy mice, were fed diets with varying VD3 contents (100-deficient, 1000-normal, and 5000 IU/kg-elevated). Some mice in the 1000 and 100 IU/kg groups received calcitriol. We studied bone metastasis and characterized TAMs and bone marrow-derived macrophages (BMDMs). 4T1 cells had higher bone metastasis potential in the 5000 IU/kg and calcitriol groups. In the same mice, an elevated tumor osteopontin level and M2 polarization of TAMs (MHCIIlow CD44high phenotype) were observed. Gene expression analysis confirmed M2 polarization of 4T1 (but not 67NR) TAMs and BMDMs, particularly in the 100 IU + cal group (increased Mrc1, Il23, and Il6). This polarization was likely due to COX-2/PGE2 induction in 4T1 calcitriol-treated cells, leading to increased proinflammatory cytokines like IL-6 and IL-23. Future studies will explore COX-2/PGE2 as a primary mediator of calcitriol-stimulated inflammation in the BC microenvironment, especially relevant for BC patients with VD3 deficiency and supplementation.
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Affiliation(s)
- Martyna Stachowicz-Suhs
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland
| | - Natalia Łabędź
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland
| | - Artur Anisiewicz
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland
| | - Joanna Banach
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland
| | - Dagmara Kłopotowska
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland
| | - Magdalena Milczarek
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland
| | - Aleksandra Piotrowska
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Faculty of Medicine, Wroclaw Medical University, Chałubińskiego 6a, 50-368, Wroclaw, Poland
| | - Piotr Dzięgiel
- Division of Histology and Embryology, Department of Human Morphology and Embryology, Faculty of Medicine, Wroclaw Medical University, Chałubińskiego 6a, 50-368, Wroclaw, Poland
| | - Adam Maciejczyk
- Department of Oncology, Wroclaw Medical University, Pl. Ludwika Hirszfelda 12, 53-413, Wrocław, Poland
- Lower Silesian Oncology, Pulmonology and Hematology Center, Pl. Ludwika Hirszfelda 12, 53-413, Wrocław, Poland
| | - Rafał Matkowski
- Department of Oncology, Wroclaw Medical University, Pl. Ludwika Hirszfelda 12, 53-413, Wrocław, Poland
- Lower Silesian Oncology, Pulmonology and Hematology Center, Pl. Ludwika Hirszfelda 12, 53-413, Wrocław, Poland
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Weigla 12, 53-114, Wroclaw, Poland.
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14
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Ghinea FS, Ionică MV, Liliac IM, Pătru S, Olaru DG, Popa-Wagner A. The Impact of Juvenile Microglia Transcriptomics on the Adult Brain Regeneration after Cerebral Ischemia. CURRENT HEALTH SCIENCES JOURNAL 2024; 50:133-150. [PMID: 38846476 PMCID: PMC11151955 DOI: 10.12865/chsj.50.01.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/22/2024] [Indexed: 06/09/2024]
Abstract
Microglial cells play a pivotal role in the brain's health and operation through all stages of life and in the face of illness. The contributions of microglia during the developmental phase of the brain markedly contrast with their contributions in the brain of adults after injury. Enhancing our understanding of the pathological mechanisms that involve microglial activity in brains as they age and in cerebrovascular conditions is crucial for informing the creation of novel therapeutic approaches. In this work we provide results on microglia transcriptomics in the juvenile vs injured adult brain and its impact on adult brain regeneration after cerebral ischemia. During fetal brain development, microglia cells are involved in gliogenesis, angiogenesis, axonal outgrowth, synaptogenesis, neurogenesis and synaptic reorganization by engulfing neuronal extensions. Within the mature, intact brain, microglial cells exhibit reduced movement of their processes in response to minimal neuronal activity, while they continuously monitor their surroundings and clear away cellular debris. Following a stroke in the adult brain, inflammation, neurodegeneration, or disruptions in neural equilibrium trigger alterations in both the genetic blueprint and the structure and roles of microglia, a state often described as "activated" microglia. Such genetic shifts include a notable increase in the pathways related to phagosomes, lysosomes, and the presentation of antigens, coupled with a rise in the expression of genes linked to cell surface receptors. We conclude that a comparison of microglia transcriptomic activity during brain development and post-stroke adult brain might provide us with new clues about how neurodegeneration occurs in the adult brain. This information could very useful to develop drugs to slow down or limit the post-stroke pathology and improve clinical outcome.
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Affiliation(s)
- Flavia Semida Ghinea
- Experimental Research Center for Normal and Pathological Aging, University of Medicine and Medicine Craiova, Romania
| | - Marius Viorel Ionică
- Experimental Research Center for Normal and Pathological Aging, University of Medicine and Medicine Craiova, Romania
| | | | - Simion Pătru
- Experimental Research Center for Normal and Pathological Aging, University of Medicine and Medicine Craiova, Romania
| | - Denisa Greta Olaru
- Experimental Research Center for Normal and Pathological Aging, University of Medicine and Medicine Craiova, Romania
| | - Aurel Popa-Wagner
- Experimental Research Center for Normal and Pathological Aging, University of Medicine and Medicine Craiova, Romania
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15
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Zhang Y, Yang W, Kumagai Y, Loza M, Zhang W, Park SJ, Nakai K. Multi-omics computational analysis unveils the involvement of AP-1 and CTCF in hysteresis of chromatin states during macrophage polarization. Front Immunol 2023; 14:1304778. [PMID: 38173717 PMCID: PMC10761412 DOI: 10.3389/fimmu.2023.1304778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
Macrophages display extreme plasticity, and the mechanisms and applications of polarization and de-/repolarization of macrophages have been extensively investigated. However, the regulation of macrophage hysteresis after de-/repolarization remains unclear. In this study, by using a large-scale computational analysis of macrophage multi-omics data, we report a list of hysteresis genes that maintain their expression patterns after polarization and de-/repolarization. While the polarization in M1 macrophages leads to a higher level of hysteresis in genes associated with cell cycle progression, cell migration, and enhancement of the immune response, we found weak levels of hysteresis after M2 polarization. During the polarization process from M0 to M1 and back to M0, the factors IRFs/STAT, AP-1, and CTCF regulate hysteresis by altering their binding sites to the chromatin. Overall, our results show that a history of polarization can lead to hysteresis in gene expression and chromatin accessibility over a given period. This study contributes to the understanding of de-/repolarization memory in macrophages.
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Affiliation(s)
- Yubo Zhang
- Department of Computational Biology and Medical Science, the University of Tokyo, Tokyo, Japan
| | - Wenbo Yang
- Department of Computational Biology and Medical Science, the University of Tokyo, Tokyo, Japan
| | - Yutaro Kumagai
- Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Martin Loza
- Human Genome Center, the Institute of Medical Science, the University of Tokyo, Tokyo, Japan
| | - Weihang Zhang
- Department of Computational Biology and Medical Science, the University of Tokyo, Tokyo, Japan
| | - Sung-Joon Park
- Human Genome Center, the Institute of Medical Science, the University of Tokyo, Tokyo, Japan
| | - Kenta Nakai
- Department of Computational Biology and Medical Science, the University of Tokyo, Tokyo, Japan
- Human Genome Center, the Institute of Medical Science, the University of Tokyo, Tokyo, Japan
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16
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Mansouri V, Arjmand B, Hamzeloo-Moghadam M, Rezaei Tavirani M, Razzaghi Z, Ahmadzadeh A, Rezaei M, Robati RM. Collagen Synthesis as a Prominent Process During the Interval between Two Laser Sessions. J Lasers Med Sci 2023; 14:e50. [PMID: 38028873 PMCID: PMC10658108 DOI: 10.34172/jlms.2023.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 09/04/2023] [Indexed: 12/01/2023]
Abstract
Introduction: Many people suffer from skin photodamage, especially photoaging. The application of a laser to repair damages is a common therapeutic method that is used widely. In the present study, the effectiveness and molecular mechanism of an Er:Glass non-ablative fractional laser on the human skin was assessed via bioinformatics and network analysis. Methods: The gene expression profiles of 17 white female forearm skins which received an Er:Glass non-ablative fractional laser before and after laser treatment in two sessions were extracted from Gene Expression Omnibus (GEO). Data were evaluated via GEO2R and the significant differentially expressed genes (DEGs) were assessed via protein-protein interaction (PPI) network analysis. The central nodes were identified and discussed for the compared set of samples. Results: Five classes of samples were clustered in two categories: first, baseline, 7 and 14 days after the first session of laser treatment, and second, one day after the first laser session, 29 days after the first laser session, and 1 day after the second laser session. The gross cell functions such as cell division and cell cycle and immune response were highlighted as the early affected targets of the laser. Collagen synthesis was resulted after the first laser session. Conclusion: In conclusion, the time interval between laser sessions plays a critical role in the effectiveness of laser therapy. Findings indicate that the gross effect of laser application appears in a short time, and important processes such as collagen synthesis happen later.
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Affiliation(s)
- Vahid Mansouri
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Babak Arjmand
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Iranian Cancer Control Center (MACSA), Tehran, Iran
| | - Maryam Hamzeloo-Moghadam
- Traditional Medicine and Materia Medica Research Center, School of Traditional Medicine Shahid, Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Ahmadzadeh
- Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Rezaei
- Genomic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza M Robati
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Long H, Lichtnekert J, Andrassy J, Schraml BU, Romagnani P, Anders HJ. Macrophages and fibrosis: how resident and infiltrating mononuclear phagocytes account for organ injury, regeneration or atrophy. Front Immunol 2023; 14:1194988. [PMID: 37868987 PMCID: PMC10587486 DOI: 10.3389/fimmu.2023.1194988] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023] Open
Abstract
Mononuclear phagocytes (MP), i.e., monocytes, macrophages, and dendritic cells (DCs), are essential for immune homeostasis via their capacities to clear pathogens, pathogen components, and non-infectious particles. However, tissue injury-related changes in local microenvironments activate resident and infiltrating MP towards pro-inflammatory phenotypes that contribute to inflammation by secreting additional inflammatory mediators. Efficient control of injurious factors leads to a switch of MP phenotype, which changes the microenvironment towards the resolution of inflammation. In the same way, MP endorses adaptive structural responses leading to either compensatory hypertrophy of surviving cells, tissue regeneration from local tissue progenitor cells, or tissue fibrosis and atrophy. Under certain circumstances, MP contribute to the reversal of tissue fibrosis by clearance of the extracellular matrix. Here we give an update on the tissue microenvironment-related factors that, upon tissue injury, instruct resident and infiltrating MP how to support host defense and recover tissue function and integrity. We propose that MP are not intrinsically active drivers of organ injury and dysfunction but dynamic amplifiers (and biomarkers) of specific tissue microenvironments that vary across spatial and temporal contexts. Therefore, MP receptors are frequently redundant and suboptimal targets for specific therapeutic interventions compared to molecular targets upstream in adaptive humoral or cellular stress response pathways that influence tissue milieus at a contextual level.
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Affiliation(s)
- Hao Long
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany
- Department of Urology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China
| | - Julia Lichtnekert
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Joachim Andrassy
- Department of General, Visceral and Transplant Surgery, University Hospital of Ludwig-Maximilians-University (LMU) Munich, Munich, Germany
| | - Barbara U. Schraml
- Institute for Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-University (LMU), Munich, Germany
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Paola Romagnani
- Department of Biomedical, Experimental and Clinical Sciences “Mario Serio”, University of Firenze, Nephrology and Dialysis Unit, Meyer Children’s Hospital, Firenze, Italy
| | - Hans-Joachim Anders
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig-Maximilians-University (LMU), Munich, Germany
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18
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Jha A, Larkin J, Moore E. SOCS1-KIR Peptide in PEGDA Hydrogels Reduces Pro-Inflammatory Macrophage Activation. Macromol Biosci 2023; 23:e2300237. [PMID: 37337867 DOI: 10.1002/mabi.202300237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Indexed: 06/21/2023]
Abstract
Macrophages modulate the wound healing cascade by adopting different phenotypes such as pro-inflammatory (M1) or pro-wound healing (M2). To reduce M1 activation, the JAK/STAT pathway can be targeted by using suppressors of cytokine signaling (SOCS1) proteins. Recently a peptide mimicking the kinase inhibitory region (KIR) of SOCS1 has been utilized to manipulate the adaptive immune response. However, the utilization of SOCS1-KIR to reduce pro-inflammatory phenotype in macrophages is yet to be investigated in a biomaterial formulation. This study introduces a PEGDA hydrogel platform to investigate SOCS1-KIR as a macrophage phenotype manipulating peptide. Immunocytochemistry, cytokine secretion assays, and gene expression analysis for pro-inflammatory macrophage markers in 2D and 3D experiments demonstrate a reduction in M1 activation due to SOCS1-KIR treatment. The retention of SOCS1-KIR in the hydrogel through release assays and diffusion tests is demonstrated. The swelling ratio of the hydrogel also remains unaffected with the entrapment of SOCS1-KIR. This study elucidates how SOCS1-KIR peptide in PEGDA hydrogels can be utilized as an effective therapeutic for macrophage manipulation.
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Affiliation(s)
- Aakanksha Jha
- J. Crayton Pruitt Family Department of Biomedical Engineering, Herbert Wertheim College of Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Joseph Larkin
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, 32603, USA
| | - Erika Moore
- Fischell Department of Bioengineering, A. James Clark School of Engineering, University of Maryland, College Park, MD, 20742, USA
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19
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Davuluri GVN, Chan CH. Regulation of intrinsic and extrinsic metabolic pathways in tumour-associated macrophages. FEBS J 2023; 290:3040-3058. [PMID: 35486022 PMCID: PMC10711806 DOI: 10.1111/febs.16465] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/08/2022] [Accepted: 04/26/2022] [Indexed: 02/03/2023]
Abstract
Tumour-associated macrophages (TAMs) are highly plastic and are broadly grouped into two major functional states, namely the pro-inflammatory M1-type and the pro-tumoural M2-type. Conversion of the functional states of TAMs is regulated by various cytokines, chemokines growth factors and other secreted factors in the microenvironment. Dysregulated metabolism is a hallmark of cancer. Emerging evidence suggests that metabolism governs the TAM differentiation and functional conversation in support of tumour growth and metastasis. Aside from the altered metabolism reprogramming in TAMs, extracellular metabolites secreted by cancer, stromal and/or other cells within the tumour microenvironment have been found to regulate TAMs through passive competition for metabolite availability and direct regulation via receptor/transporter-mediated signalling reaction. In this review, we focus on the regulatory roles of different metabolites and metabolic pathways in TAM conversion and function. We also discuss if the dysregulated metabolism in TAMs can be exploited for the development of new therapeutic strategies against cancer.
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Affiliation(s)
| | - Chia-Hsin Chan
- Department of Molecular and Cellular Biology, Roswell Park Cancer Comprehensive Cancer Center, Buffalo, New York
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20
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Crossman AH, Ignatz EH, Hall JR, Kumar S, Fast MD, Eslamloo K, Rise ML. Basal and immune-responsive transcript expression of two Atlantic salmon interferon regulatory factor 2 (irf2) paralogues. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 143:104689. [PMID: 36934886 DOI: 10.1016/j.dci.2023.104689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/11/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
Atlantic salmon (Salmo salar) is one of the most economically important aquaculture species globally. However, disease has become a prevalent threat to this industry. A thorough understanding of the genes and molecular pathways involved in the immune responses of Atlantic salmon is imperative for selective breeding of disease-resistant broodstock, as well as developing new diets and vaccines to mitigate the impact of disease. Members of the interferon regulatory factor (IRF) family of transcription factors play roles in the induction of interferons and other cytokines involved in host immune responses to intracellular and parasitic pathogens. IRF family members also play diverse roles in other biological processes, such as stress response, reproduction and development. The current study focused on one member of the IRF family: interferon regulatory factor 2 (irf2). As previously shown, due to the genome duplication that occurred ∼80 million years ago in the salmonid lineage, there are two irf2 paralogues in the Atlantic salmon genome. In silico analyses at the cDNA and deduced amino acid levels were conducted followed by phylogenetic tree construction with IRF2 amino acid sequences from various ray-finned fishes, cartilaginous fish and tetrapods. qPCR was then used to analyze paralogue-specific irf2 constitutive expression across 17 adult tissues, as well as responses to the viral mimic pIC (i.e., synthetic double-stranded RNA analog) in cultured macrophage-like cells (in vitro) and to infection with the Gram-negative bacterium Moritella viscosa in skin samples (in vivo). The qPCR studies showed sex- and paralogue-specific differences in expression across tissues. For example, expression of both paralogues was higher in ovary than in testes; expression (considering both sexes together) was highest for irf2-1 in gonad and for irf2-2 in hindgut. Both irf2 paralogues were responsive to pIC stimulation, but varied in their induction level, with irf2-1 having an overall stronger response than irf2-2. Only one paralogue, irf2-2, was significantly responsive to M. viscosa infection. Differences in irf2-1 and irf2-2 transcript expression levels constitutively across tissues, and in response to pIC and M. viscosa, may suggest neo- or subfunctionalization of the duplicated genes. This novel information expands current knowledge and provides insight into how genome duplication events may impact host regulation of important immune markers.
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Affiliation(s)
- Aleksandra H Crossman
- Memorial University, Department of Ocean Sciences, 0 Marine Lab Road, St. John's, NL, A1C 5S7, Canada.
| | - Eric H Ignatz
- Memorial University, Department of Ocean Sciences, 0 Marine Lab Road, St. John's, NL, A1C 5S7, Canada.
| | - Jennifer R Hall
- Memorial University, Aquatic Research Cluster, CREAIT Network, Ocean Sciences Centre, 0 Marine Lab Road, St. John's, NL, A1C 5S7, Canada.
| | - Surendra Kumar
- Memorial University, Department of Ocean Sciences, 0 Marine Lab Road, St. John's, NL, A1C 5S7, Canada.
| | - Mark D Fast
- Atlantic Veterinary College, University of Prince Edward Island, 550 University Ave, Charlottetown, PE, CIA 4P3, Canada.
| | - Khalil Eslamloo
- Memorial University, Department of Ocean Sciences, 0 Marine Lab Road, St. John's, NL, A1C 5S7, Canada.
| | - Matthew L Rise
- Memorial University, Department of Ocean Sciences, 0 Marine Lab Road, St. John's, NL, A1C 5S7, Canada.
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21
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Xie Y, Li H, Xu L, Zou H, Wang X, He X, Tang Q, Zhou Y, Zhao X, Chen X, Liu H, Pu J, Luo D, Liu P. DNA Nanoclusters Combined with One-Shot Radiotherapy Augment Cancer Immunotherapy Efficiency. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208546. [PMID: 36745572 DOI: 10.1002/adma.202208546] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/15/2023] [Indexed: 05/17/2023]
Abstract
Immunotherapy shows immense promise for improving cancer treatment. Combining immunotherapy with radiotherapy provides a conspicuous advantage due to its enhanced abscopal effect. However, established immune tolerance mechanisms in the tumor microenvironment can hamper the generation of a sufficient abscopal effect. Herein, a type of DNA nanocluster (DNAnc) that is self-assembled by a CpG-ODNs-loaded Y-shaped double-stranded DNA vector based on the unique complementary base-pairing rules is designed. The unique structure of DNAnc makes it load more than ≈8125.5 ± 822.5 copies of CpG ODNs within one single nanostructure, which effectively increases resistance to nuclease degradation and elevates the efficiency of repolarizing macrophages to an M1-like phenotype. Mechanistic studies reveal that more DNAncs are endocytosed by macrophages in the cancer tissue and repolarized macrophages to elicit a robust abscopal effect with the accumulation of macrophages induced by radiotherapy, generating potent, long-term, and durable antitumor immunity for the inhibition of tumor metastasis and the prevention of tumor recurrence, which provides a novel strategy to boost cancer immunotherapy.
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Affiliation(s)
- Yuexia Xie
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Huishan Li
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Lei Xu
- Department of Radiation Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Hanbing Zou
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xingang Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
| | - Xiaozhen He
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Qianyun Tang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Yan Zhou
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xue Zhao
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xiaojing Chen
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Hongmei Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Jun Pu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Central Laboratory, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Dan Luo
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Peifeng Liu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200032, China
- Micro-Nano Research and Diagnosis Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
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22
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Adipose tissue macrophages and their role in obesity-associated insulin resistance: an overview of the complex dynamics at play. Biosci Rep 2023; 43:232519. [PMID: 36718668 PMCID: PMC10011338 DOI: 10.1042/bsr20220200] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/18/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023] Open
Abstract
Obesity, a major global health concern, is characterized by serious imbalance between energy intake and expenditure leading to excess accumulation of fat in adipose tissue (AT). A state of chronic low-grade AT inflammation is prevalent during obesity. The adipose tissue macrophages (ATM) with astounding heterogeneity and complex regulation play a decisive role in mediating obesity-induced insulin resistance. Adipose-derived macrophages were broadly classified as proinflammatory M1 and anti-inflammatory M2 subtypes but recent reports have proclaimed several novel and intermediate profiles, which are crucial in understanding the dynamics of macrophage phenotypes during development of obesity. Lipid-laden hypertrophic adipocytes release various chemotactic signals that aggravate macrophage infiltration into AT skewing toward mostly proinflammatory status. The ratio of M1-like to M2-like macrophages is increased substantially resulting in copious secretion of proinflammatory mediators such as TNFα, IL-6, IL-1β, MCP-1, fetuin-A (FetA), etc. further worsening insulin resistance. Several AT-derived factors could influence ATM content and activation. Apart from being detrimental, ATM exerts beneficial effects during obesity. Recent studies have highlighted the prime role of AT-resident macrophage subpopulations in not only effective clearance of excess fat and dying adipocytes but also in controlling vascular integrity, adipocyte secretions, and fibrosis within obese AT. The role of ATM subpopulations as friend or foe is determined by an intricate interplay of such factors arising within hyperlipidemic microenvironment of obese AT. The present review article highlights some of the key research advances in ATM function and regulation, and appreciates the complex dynamics of ATM in the pathophysiologic scenario of obesity-associated insulin resistance.
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23
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Pinosanu LR, Capitanescu B, Glavan D, Godeanu S, Cadenas IF, Doeppner TR, Hermann DM, Balseanu AT, Bogdan C, Popa-Wagner A. Neuroglia Cells Transcriptomic in Brain Development, Aging and Neurodegenerative Diseases. Aging Dis 2023; 14:63-83. [PMID: 36818562 PMCID: PMC9937697 DOI: 10.14336/ad.2022.0621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/21/2022] [Indexed: 11/18/2022] Open
Abstract
Glia cells are essential for brain functioning during development, aging and disease. However, the role of astroglia plays during brain development is quite different from the role played in the adult lesioned brain. Therefore, a deeper understanding of pathomechanisms underlying astroglia activity in the aging brain and cerebrovascular diseases is essential to guide the development of new therapeutic strategies. To this end, this review provides a comparison between the transcriptomic activity of astroglia cells during development, aging and neurodegenerative diseases, including cerebral ischemia. During fetal brain development, astrocytes and microglia often affect the same developmental processes such as neuro-/gliogenesis, angiogenesis, axonal outgrowth, synaptogenesis, and synaptic pruning. In the adult brain astrocytes are a critical player in the synapse remodeling by mediating synapse elimination while microglia activity has been associated with changes in synaptic plasticity and remove cell debris by constantly sensing the environment. However, in the lesioned brain astrocytes proliferate and play essential functions with regard to energy supply to the neurons, neurotransmission and buildup of a protective scar isolating the lesion site from the surroundings. Inflammation, neurodegeneration, or loss of brain homeostasis induce changes in microglia gene expression, morphology, and function, generally referred to as "primed" microglia. These changes in gene expression are characterized by an enrichment of phagosome, lysosome, and antigen presentation signaling pathways and is associated with an up-regulation of genes encoding cell surface receptors. In addition, primed microglia are characterized by upregulation of a network of genes in response to interferon gamma. Conclusion. A comparison of astroglia cells transcriptomic activity during brain development, aging and neurodegenerative disorders might provide us with new therapeutic strategies with which to protect the aging brain and improve clinical outcome.
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Affiliation(s)
- Leonard Radu Pinosanu
- Experimental Research Center for Normal and Pathological Aging (ARES), University of Medicine and Pharmacy of Craiova, Craiova, Romania.
| | - Bogdan Capitanescu
- Experimental Research Center for Normal and Pathological Aging (ARES), University of Medicine and Pharmacy of Craiova, Craiova, Romania.
| | - Daniela Glavan
- Psychiatric clinic, University of Medicine and Pharmacy Craiova, Craiova, Romania.
| | - Sanziana Godeanu
- Experimental Research Center for Normal and Pathological Aging (ARES), University of Medicine and Pharmacy of Craiova, Craiova, Romania.
| | - Israel Ferna´ndez Cadenas
- Stroke Pharmacogenomics and Genetics group, Sant Pau Hospital Institute of Research, Barcelona, Spain.
| | - Thorsten R. Doeppner
- Department of Neurology, University Hospital Giessen, Giessen, Germany.,University of Göttingen Medical School, Department of Neurology, Göttingen, Germany.
| | - Dirk M. Hermann
- Vascular Neurology, Dementia and Ageing Research, Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, Germany.
| | - Adrian-Tudor Balseanu
- Experimental Research Center for Normal and Pathological Aging (ARES), University of Medicine and Pharmacy of Craiova, Craiova, Romania.
| | - Catalin Bogdan
- Experimental Research Center for Normal and Pathological Aging (ARES), University of Medicine and Pharmacy of Craiova, Craiova, Romania.,Vascular Neurology, Dementia and Ageing Research, Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, Germany.,Correspondence should be addressed to: Dr. Aurel Popa-Wagner () and Dr. Catalin Bogdan (), University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, Germany
| | - Aurel Popa-Wagner
- Experimental Research Center for Normal and Pathological Aging (ARES), University of Medicine and Pharmacy of Craiova, Craiova, Romania.,Vascular Neurology, Dementia and Ageing Research, Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, Germany.,Correspondence should be addressed to: Dr. Aurel Popa-Wagner () and Dr. Catalin Bogdan (), University Hospital Essen, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, Germany
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24
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Zhang S, Rautela J, Bediaga NG, Kolesnik TB, You Y, Nie J, Dagley LF, Bedo J, Wang H, Sun L, Sutherland R, Surgenor E, Iannarella N, Allan R, Souza-Fonseca-Guimaraes F, Xie Y, Wang Q, Zhang Y, Xu Y, Nutt SL, Lew AM, Huntington ND, Nicholson SE, Chopin M, Zhan Y. CIS controls the functional polarization of GM-CSF-derived macrophages. Cell Mol Immunol 2023; 20:65-79. [PMID: 36471114 PMCID: PMC9794780 DOI: 10.1038/s41423-022-00957-z] [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: 06/18/2022] [Revised: 10/24/2022] [Accepted: 11/07/2022] [Indexed: 12/12/2022] Open
Abstract
The cytokine granulocyte-macrophage-colony stimulating factor (GM-CSF) possesses the capacity to differentiate monocytes into macrophages (MØs) with opposing functions, namely, proinflammatory M1-like MØs and immunosuppressive M2-like MØs. Despite the importance of these opposing biological outcomes, the intrinsic mechanism that regulates the functional polarization of MØs under GM-CSF signaling remains elusive. Here, we showed that GM-CSF-induced MØ polarization resulted in the expression of cytokine-inducible SH2-containing protein (CIS) and that CIS deficiency skewed the differentiation of monocytes toward immunosuppressive M2-like MØs. CIS deficiency resulted in hyperactivation of the JAK-STAT5 signaling pathway, consequently promoting downregulation of the transcription factor Interferon Regulatory Factor 8 (IRF8). Loss- and gain-of-function approaches highlighted IRF8 as a critical regulator of the M1-like polarization program. In vivo, CIS deficiency induced the differentiation of M2-like macrophages, which promoted strong Th2 immune responses characterized by the development of severe experimental asthma. Collectively, our results reveal a CIS-modulated mechanism that clarifies the opposing actions of GM-CSF in MØ differentiation and uncovers the role of GM-CSF in controlling allergic inflammation.
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Affiliation(s)
- Shengbo Zhang
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Jai Rautela
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
- oNKo-Innate Pty Ltd, Moonee Ponds, VIC, Australia
| | - Naiara G Bediaga
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Tatiana B Kolesnik
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
| | - Yue You
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Junli Nie
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Laura F Dagley
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Justin Bedo
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Computing and Information Systems, University of Melbourne, Parkville, VIC, Australia
| | - Hanqing Wang
- Department of Respiratory Medicine, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Li Sun
- College of Biological Science, Anhui Normal University, Hefei, China
| | - Robyn Sutherland
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Elliot Surgenor
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
| | - Nadia Iannarella
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
| | - Rhys Allan
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Fernando Souza-Fonseca-Guimaraes
- University of Queensland Diamantina Institute, University of Queensland, Translational Research Institute, Brisbane, QLD, Australia
| | - Yi Xie
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Duke, Singapore
| | - Qike Wang
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Yuxia Zhang
- Department of Respiratory Medicine, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Centre, State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yuekang Xu
- College of Biological Science, Anhui Normal University, Hefei, China
| | - Stephen L Nutt
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Andrew M Lew
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Nicholas D Huntington
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
- oNKo-Innate Pty Ltd, Moonee Ponds, VIC, Australia
| | - Sandra E Nicholson
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Michaël Chopin
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia.
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.
| | - Yifan Zhan
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia.
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia.
- Drug Discovery, Shanghai Huaota Biopharm, Shanghai, China.
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25
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Yang X, Liu X, Li J, Zhang P, Li H, Chen G, Zhang W, Wang T, Frazer I, Ni G. Caerin 1.1/1.9 Enhances Antitumour Immunity by Activating the IFN-α Response Signalling Pathway of Tumour Macrophages. Cancers (Basel) 2022; 14:cancers14235785. [PMID: 36497272 PMCID: PMC9738106 DOI: 10.3390/cancers14235785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/09/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
Macrophages are one of the essential components of the tumour microenvironment (TME) of many cancers and show complex heterogeneity and functions. More recent research has been focusing on the characterisation of tumour-associated macrophages (TAMs). Previously, our study demonstrated that caerin 1.1/1.9 peptides significantly improve the therapeutic efficacy of combined specific immunotherapy and immune checkpoint blockade in a murine transplantable tumour model (TC-1). In this study, the mice inoculated with TC-1 tumour were immunised differently. The TAMs were isolated using flow cytometry and characterised by cytokine ELISA. The survival rates of mice with different treatments containing caerin 1.1/19 were assessed comparatively, including those with/without macrophage depletion. The single-cell RNA sequencing (scRNA-seq) data of previous studies were integrated to further reveal the functions of TAMs with the treatments containing caerin 1.1/1.9. As a comparison, the TAMs of stage I and II cervical cancer patients were analysed using scRNA-seq analysis. We demonstrate that caerin induced tumour clearance is associated with infiltration of tumours by IL-12 secreting Ly6C+F4/80+ macrophages exhibiting enhanced IFN-α response signalling, renders animals resistant to further tumour challenge, which is lost after macrophage depletion. Our results indicate that caerin 1.1/1.9 treatment has great potential in improving current immunotherapy efficacy.
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Affiliation(s)
- Xiaodan Yang
- The First Affiliated Hospital, Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - Xiaosong Liu
- The First Affiliated Hospital, Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou 510080, China
- Cancer Research Institute, First People’s Hospital of Foshan, Foshan 528000, China
| | - Junjie Li
- The First Affiliated Hospital, Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - Pingping Zhang
- Cancer Research Institute, First People’s Hospital of Foshan, Foshan 528000, China
| | - Hejie Li
- School of Science, Engineering and Technology, University of the Sunshine Coast, Maroochydore BC, QLD 4558, Australia
| | - Guoqiang Chen
- Cancer Research Institute, First People’s Hospital of Foshan, Foshan 528000, China
| | - Wei Zhang
- The First Affiliated Hospital, Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - Tianfang Wang
- School of Science, Engineering and Technology, University of the Sunshine Coast, Maroochydore BC, QLD 4558, Australia
- Centre for Bioinnovation, University of the Sunshine Coast, Maroochydore BC, QLD 4558, Australia
| | - Ian Frazer
- Faculty of Medicine, University of Queensland Diamantina Institute, Translational Research Institute, the University of Queensland, Woolloongabba, QLD 4102, Australia
- Correspondence: (I.F.); (G.N.)
| | - Guoying Ni
- The First Affiliated Hospital, Clinical Medical School, Guangdong Pharmaceutical University, Guangzhou 510080, China
- Cancer Research Institute, First People’s Hospital of Foshan, Foshan 528000, China
- Correspondence: (I.F.); (G.N.)
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26
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Yan Q, Wang M, Xia H, Dai C, Diao T, Wang Y, Hou H, Zhang H, Liu M, Long X. Single-cell RNA-sequencing technology demonstrates the heterogeneity between aged prostate peripheral and transitional zone. Clin Transl Med 2022; 12:e1084. [PMID: 36245324 PMCID: PMC9574492 DOI: 10.1002/ctm2.1084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/29/2022] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Identifying cellular and functional heterogeneity within aged prostate is critical for understanding the spatial distribution of prostate diseases. METHODS Aged human prostate peripheral zone (PZ) and transitional zone (TZ) tissues were used for single-cell RNA-sequencing. Results were validated by immunofluorescence staining. RESULTS We found that club/hillock epithelial cells, compared with other epithelial cells, had significantly higher NOTCH signaling activity and expressed higher levels of neuro-stems but lower androgen-related genes. These cells were primarily found in the TZ and provided a stem-like niche around the proximal prostate ducts. Significant heterogeneity was observed in the aged luminal population. A novel TFF3+ luminal subtype with elevated MYC and E2F pathway activities was observed, primarily in the PZ. Further analysis revealed that epithelial cells in the TZ had higher levels of stem- and inflammation-related pathway activities but lower androgen/lineage-related pathway activities than those in the PZ. Notably, the activation of MYC, E2F and DNA repair pathways significantly increased in PZ luminal cells. In the immune landscape, we found that the immune microenvironment in the TZ is more complex and disordered with more infiltration of NK and Treg cells. CD8 T cell and macrophage in the TZ exhibit both inflammation activation and suppression phenotypes. In the stroma, the TZ had a higher fibroblast density, and fibroblasts in the TZ exhibited stronger transcriptome activity in immunity and proliferation. Ligand-receptor interaction analysis revealed that fibroblasts could contribute to a NOTCH signaling niche for club/hillock cells in the TZ and balance the prostate immune microenvironment. The activation of stem properties, inflammatory infiltration and loss of androgen/lineage activity are prominent features distinguishing the TZ from PZ. CONCLUSIONS Our study explains the heterogeneity between the TZ and PZ of aged prostate, which may help understand the spatial distribution of prostate diseases and establish a foundation for novel target discovery.
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Affiliation(s)
- Qiuxia Yan
- Peking University Fifth School of Clinical MedicineBeijingChina,Department of UrologyBeijing HospitalNational Center of GerontologyBeijingChina
| | - Miao Wang
- Department of UrologyBeijing HospitalNational Center of GerontologyBeijingChina
| | - Haoran Xia
- Department of UrologyBeijing HospitalNational Center of GerontologyBeijingChina
| | - Cao Dai
- Department of General SurgeryThe Third Affiliated Hospital Sun Yat‐sen UniversityGuangzhouGuangdongChina
| | - Tongxiang Diao
- Department of UrologyShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanChina
| | | | - Huimin Hou
- Department of UrologyBeijing HospitalNational Center of GerontologyBeijingChina
| | - Hong Zhang
- Institute of Cardiovascular Sciences and Key Laboratory of Molecular Cardiovascular SciencesPeking University Health Science CenterBeijingChina
| | - Ming Liu
- Department of UrologyBeijing HospitalNational Center of GerontologyBeijingChina
| | - Xingbo Long
- Department of UrologySun Yat‐sen University Cancer CenterGuangzhouGuangdongChina,State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐Sen University Cancer CenterGuangzhouGuangdongChina
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Association of CD206 Protein Expression with Immune Infiltration and Prognosis in Patients with Triple-Negative Breast Cancer. Cancers (Basel) 2022; 14:cancers14194829. [PMID: 36230752 PMCID: PMC9564167 DOI: 10.3390/cancers14194829] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/19/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Triple-negative breast cancers (TNBCs) have a worse prognosis, but might respond to immunotherapies. Macrophages are plastic cells that can adopt various phenotypes and functions. Although they are a major immune population in TNBCs, the relationship between tumor-associated macrophages (TAMs) and TNBC progression has been rarely explored, with controversial results. Methods: We evaluated the prognostic impact of TAMs, quantified by immunohistochemistry with anti-CD68, -IRF8, -CD163, and -CD206 antibodies, in a well-described cohort of 285 patients with non-metastatic TNBC. Results: CD68 (p = 0.008), IRF8 (p = 0.001), and CD163 (p < 0.001) expression positively correlated with higher tumor grade, while CD206 was associated with smaller tumor size (p < 0.001). All macrophage markers were associated with higher tumor-infiltrating lymphocyte numbers and PD-L1 expression. Univariate survival analyses reported a significant positive correlation between CD163+ or CD206+ TAMs and relapse-free survival (respectively: HR = 0.52 [0.28−0.97], p = 0.027, and HR = 0.51 [0.31−0.82], p = 0.005), and between CD206+ TAMs and overall survival (HR = 0.54 [0.35−0.83], p = 0.005). In multivariate analysis, there was a trend for an association between CD206+ TAMs and relapse-free survival (HR = 0.63 [0.33−1.04], p = 0.073). Conclusions: These data suggest that CD206 expression defines a TAM subpopulation potentially associated with favorable outcomes in patients with TNBC. CD206 expression might identify an immune TNBC subgroup with specific therapeutic options.
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28
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Sharifiaghdam M, Shaabani E, Faridi-Majidi R, De Smedt SC, Braeckmans K, Fraire JC. Macrophages as a therapeutic target to promote diabetic wound healing. Mol Ther 2022; 30:2891-2908. [PMID: 35918892 PMCID: PMC9482022 DOI: 10.1016/j.ymthe.2022.07.016] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/06/2022] [Accepted: 07/21/2022] [Indexed: 11/21/2022] Open
Abstract
It is well established that macrophages are key regulators of wound healing, displaying impressive plasticity and an evolving phenotype, from an aggressive pro-inflammatory or "M1" phenotype to a pro-healing or "M2" phenotype, depending on the wound healing stage, to ensure proper healing. Because dysregulated macrophage responses have been linked to impaired healing of diabetic wounds, macrophages are being considered as a therapeutic target for improved wound healing. In this review, we first discuss the role of macrophages in a normal skin wound healing process and discuss the aberrations that occur in macrophages under diabetic conditions. Next we provide an overview of recent macrophage-based therapeutic approaches, including delivery of ex-vivo-activated macrophages and delivery of pharmacological strategies aimed at eliminating or re-educating local skin macrophages. In particular, we focus on strategies to silence key regulator genes to repolarize wound macrophages to the M2 phenotype, and we provide a discussion of their potential future clinical translation.
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Affiliation(s)
- Maryam Sharifiaghdam
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, 9000 Ghent, Belgium; Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elnaz Shaabani
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, 9000 Ghent, Belgium; Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Faridi-Majidi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, 9000 Ghent, Belgium
| | - Kevin Braeckmans
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, 9000 Ghent, Belgium; Center for Advanced Light Microscopy, Ghent University, 9000 Ghent, Belgium.
| | - Juan C Fraire
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, 9000 Ghent, Belgium.
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Zheng H, Wang S, Li X, Hu H. INSISTC: Incorporating network structure information for single-cell type classification. Genomics 2022; 114:110480. [PMID: 36075505 DOI: 10.1016/j.ygeno.2022.110480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/30/2022] [Accepted: 09/04/2022] [Indexed: 11/27/2022]
Abstract
Uncovering gene regulatory mechanisms in individual cells can provide insight into cell heterogeneity and function. Recent accumulated Single-Cell RNA-Seq data have made it possible to analyze gene regulation at single-cell resolution. Understanding cell-type-specific gene regulation can assist in more accurate cell type and state identification. Computational approaches utilizing such relationships are under development. Methods pioneering in integrating gene regulatory mechanism discovery with cell-type classification encounter challenges such as determine gene regulatory relationships and incorporate gene regulatory network structure. To fill this gap, we developed INSISTC, a computational method to incorporate gene regulatory network structure information for single-cell type classification. INSISTC is capable of identifying cell-type-specific gene regulatory mechanisms while performing single-cell type classification. INSISTC demonstrated its accuracy in cell type classification and its potential for providing insight into molecular mechanisms specific to individual cells. In comparison with the alternative methods, INSISTC demonstrated its complementary performance for gene regulation interpretation.
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Affiliation(s)
- Hansi Zheng
- Department of Computer Science, University of Central Florida, Orlando, FL 32816, USA
| | - Saidi Wang
- Department of Computer Science, University of Central Florida, Orlando, FL 32816, USA
| | - Xiaoman Li
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL 32816, USA.
| | - Haiyan Hu
- Department of Computer Science, Genomics and Bioinformatics Cluster, University of Central Florida, Orlando, FL 32816, USA.
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30
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Kirou KA, Dall`Era M, Aranow C, Anders HJ. Belimumab or anifrolumab for systemic lupus erythematosus? A risk-benefit assessment. Front Immunol 2022; 13:980079. [PMID: 36119023 PMCID: PMC9472122 DOI: 10.3389/fimmu.2022.980079] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/11/2022] [Indexed: 02/01/2023] Open
Abstract
Treatment of systemic lupus erythematosus (SLE) currently employs agents with relatively unselective immunosuppressive properties. However, two target-specific biological drugs have been approved: belimumab (anti-B-cell-activating factor/BAFF) and anifrolumab (anti-interferon alpha receptor-1/IFNAR1). Here, we performed a comparative risk-benefit assessment for both drugs based on the role of BAFF and IFNAR1 in host defense and the pathogenesis of SLE and by considering the available data on safety and efficacy. Due to differences in target expression sites, anti-IFNAR1, but not anti-BAFF, might elicit organ-specific effects, consistent with clinical efficacy data. The IFNAR1 is specifically involved in innate and adaptive antiviral immunity in most cells of the body. Consistent with this observation, the available safety data obtained from patients negatively selected for LN and neuropsychiatric SLE, primary immunodeficiencies, splenectomy and chronic HIV, HBV, HCV infections suggest an increased risk for some viral infections such as varicella zoster and perhaps influenza. In contrast, BAFF is mainly involved in adaptive immune responses in lymphoid tissues, thus anti-BAFF therapy modulates SLE activity and prevents SLE flares without interfering with local innate host defense mechanisms and should only marginally affect immune memory to previous pathogen exposures consistent with the available safety data from SLE patients without chronic HIV, HBV or HCV infections. When using belimumab and anifrolumab, careful patient stratification and specific precautions may minimize risks and maximize beneficial treatment effects for patients with SLE.
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Affiliation(s)
- Kyriakos A. Kirou
- Department of Medicine, Hospital for Special Surgery and Weill Cornell Medical College, New York, NY, United States
| | - Maria Dall`Era
- Division of Rheumatology, Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Cynthia Aranow
- Institute of Molecular Medicine, Feinstein Institute for Medical Research, Manhasset, NY, United States
| | - Hans-Joachim Anders
- Department of Medicine IV, University Hospital of the Ludwig Maximilian University, Munich, Germany
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31
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Ghiboub M, Koster J, Craggs PD, Li Yim AYF, Shillings A, Hutchinson S, Bingham RP, Gatfield K, Hageman IL, Yao G, O’Keefe HP, Coffin A, Patel A, Sloan LA, Mitchell DJ, Hayhow TG, Lunven L, Watson RJ, Blunt CE, Harrison LA, Bruton G, Kumar U, Hamer N, Spaull JR, Zwijnenburg DA, Welting O, Hakvoort TBM, te Velde AA, van Limbergen J, Henneman P, Prinjha RK, de Winther MPJ, Harker NR, Tough DF, de Jonge WJ. Modulation of macrophage inflammatory function through selective inhibition of the epigenetic reader protein SP140. BMC Biol 2022; 20:182. [PMID: 35986286 PMCID: PMC9392322 DOI: 10.1186/s12915-022-01380-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 07/28/2022] [Indexed: 11/10/2022] Open
Abstract
Background SP140 is a bromodomain-containing protein expressed predominantly in immune cells. Genetic polymorphisms and epigenetic modifications in the SP140 locus have been linked to Crohn’s disease (CD), suggesting a role in inflammation. Results We report the development of the first small molecule SP140 inhibitor (GSK761) and utilize this to elucidate SP140 function in macrophages. We show that SP140 is highly expressed in CD mucosal macrophages and in in vitro-generated inflammatory macrophages. SP140 inhibition through GSK761 reduced monocyte-to-inflammatory macrophage differentiation and lipopolysaccharide (LPS)-induced inflammatory activation, while inducing the generation of CD206+ regulatory macrophages that were shown to associate with a therapeutic response to anti-TNF in CD patients. SP140 preferentially occupies transcriptional start sites in inflammatory macrophages, with enrichment at gene loci encoding pro-inflammatory cytokines/chemokines and inflammatory pathways. GSK761 specifically reduces SP140 chromatin binding and thereby expression of SP140-regulated genes. GSK761 inhibits the expression of cytokines, including TNF, by CD14+ macrophages isolated from CD intestinal mucosa. Conclusions This study identifies SP140 as a druggable epigenetic therapeutic target for CD. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01380-6.
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Halimani N, Nesterchuk M, Andreichenko IN, Tsitrina AA, Elchaninov A, Lokhonina A, Fatkhudinov T, Dashenkova NO, Brezgina V, Zatsepin TS, Mikaelyan AS, Kotelevtsev YV. Phenotypic Alteration of BMDM In Vitro Using Small Interfering RNA. Cells 2022; 11:cells11162498. [PMID: 36010574 PMCID: PMC9406732 DOI: 10.3390/cells11162498] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 11/03/2022] Open
Abstract
Autologous macrophage transfer is an emerging platform for cell therapy. It is anticipated that conventional macrophage reprogramming based on ex vivo polarization using cytokines and ligands of TLRs may enhance the therapeutic effect. We describe an alternative approach based on small interfering RNA (siRNA) knockdown of selected molecular cues of macrophage polarization, namely EGR2, IRF3, IRF5, and TLR4 in Raw264.7 monocyte/macrophage cell line and mouse-bone-marrow-derived macrophages (BMDMs). The impact of IRF5 knockdown was most pronounced, curtailing the expression of other inflammatory mediators such as IL-6 and NOS2, especially in M1-polarized macrophages. Contrary to IRF5, EGR2 knockdown potentiated M1-associated markers while altogether abolishing M2 marker expression, which is indicative of the principal role of EGR2 in the maintenance of alternative phenotypes. IRF3 knockdown suppressed M1 polarization but upregulated Arg 1, a canonical marker of alternative polarization in M1 macrophages. As anticipated, the knockdown of TLR4 also attenuated the M1 phenotype but, akin to IRF3, significantly induced Arginase 1 in M0 and M1, driving the phenotype towards M2. This study validates RNAi as a viable option for the alteration and maintenance of macrophage phenotypes.
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Affiliation(s)
- Noreen Halimani
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation and Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
- Correspondence: (N.H.); (Y.V.K.)
| | - Mikhail Nesterchuk
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation and Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
| | - Irina N. Andreichenko
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation and Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
| | - Alexandra A. Tsitrina
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, 26 Vavilov Street, Moscow 119334, Russia
| | - Andrey Elchaninov
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov, Russian Federation, 4 Oparina Street, Moscow 117997, Russia
- Department of Histology, Pirogov Russian National Research Medical University, Ministry of Healthcare of The Russian Federation, 1 Ostrovitianov Street, Moscow 117997, Russia
| | - Anastasia Lokhonina
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov, Russian Federation, 4 Oparina Street, Moscow 117997, Russia
- Department of Histology, Cytology and Embryology, Peoples’ Friendship University of Russia, 6 Miklukho-Maklaya Street, Moscow 117198, Russia
| | - Timur Fatkhudinov
- Department of Histology, Pirogov Russian National Research Medical University, Ministry of Healthcare of The Russian Federation, 1 Ostrovitianov Street, Moscow 117997, Russia
- Scientific Research Institute of Human Morphology, 3 Tsurupa Street, Moscow 117418, Russia
| | - Nataliya O. Dashenkova
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, 26 Vavilov Street, Moscow 119334, Russia
| | - Vera Brezgina
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation and Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
| | - Timofei S. Zatsepin
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation and Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
| | - Arsen S. Mikaelyan
- Koltzov Institute of Developmental Biology of Russian Academy of Sciences, 26 Vavilov Street, Moscow 119334, Russia
| | - Yuri V. Kotelevtsev
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation and Center of Life Sciences, Skolkovo Institute of Science and Technology, Moscow 143025, Russia
- Correspondence: (N.H.); (Y.V.K.)
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Kang N, Shi Y, Song J, Gao F, Fan M, Jin W, Gao Y, Lv P. Resveratrol reduces inflammatory response and detrimental effects in chronic cerebral hypoperfusion by down-regulating stimulator of interferon genes/TANK-binding kinase 1/interferon regulatory factor 3 signaling. Front Aging Neurosci 2022; 14:868484. [PMID: 35936778 PMCID: PMC9354401 DOI: 10.3389/fnagi.2022.868484] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 06/27/2022] [Indexed: 11/29/2022] Open
Abstract
Inflammatory responses induced by chronic cerebral hypoperfusion (CCH) play a critical role in the progression of vascular dementia. Stimulator of interferon genes (STING) signaling function as a key mediator of inflammation and immunological responses in the central nervous system (CNS), and resveratrol (RES) exerts potent anti-inflammatory effects. However, the role of STING signaling and the relationship between RES and STING signaling in persistent hypoperfusion-induced cerebral inflammation remain unclear. In this study, Sprague–Dawley rats were subjected to either Sham or bilateral common carotid artery occlusion (2VO) surgery and received RES or vehicle daily by intraperitoneal injection for 4 or 8 weeks. Morris’s water maze was used for the analysis of cognitive function. The neuroinflammatory responses in white matter and hippocampus of the rat brain were assessed by Western blot, Immunofluorescence staining, and qRT-PCR analyses. Myelin integrity, neutrophil infiltration, and microglia proliferation were assessed by Immunohistochemistry and histologic analysis. We demonstrated that after CCH, neurons, microglia, and astrocyte under endoplasmic reticulum (ER) stress upregulated the expression of STING, TANK-binding kinase 1 (TBK1), and the transcription factor interferon regulatory factor 3 (IRF3), as well as translocation of IRF3 into the nucleus. These were accompanied by infiltration of neutrophils, activation of microglia, and overproduction of proinflammatory mediators. Improvements in cognitive deficits were related to reduced hippocampal neuronal cell death and increased myelin integrity in RES-treated rats. The neuroprotective effects of RES were associated with suppression of the expression of tumor necrosis factor-alpha (TNF-α), intercellular adhesion molecule 1 (ICAM-1), VCAM-1, interferon-β (IFN-β), and IL-1β, likely through mitigation of the STING/TBK1/IRF3 pathway. These inhibitory effects exerted by RES also inhibited the levels of myeloperoxidase, reduced excess expression of reactive astrocytes, and activated microglia. In conclusion, the STING/TBK1/IRF3 axis may be critical for proinflammatory responses in cerebral tissue with persistent hypoperfusion, and RES exerts its anti-inflammatory effects by suppressing STING/TBK1/IRF3 signaling.
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Affiliation(s)
- Ning Kang
- Department of Neurology, Hebei Medical University, Shijiazhuang, China
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Yuanyuan Shi
- Department of Neurology, Hebei Medical University, Shijiazhuang, China
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Jiaxi Song
- Department of Neurology, Hebei Medical University, Shijiazhuang, China
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Fei Gao
- Department of Oncology, Hebei General Hospital, Shijiazhuang, China
| | - Mingyue Fan
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Wei Jin
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Yaran Gao
- Department of Neurology, Hebei Medical University, Shijiazhuang, China
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Peiyuan Lv
- Department of Neurology, Hebei Medical University, Shijiazhuang, China
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
- *Correspondence: Peiyuan Lv,
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Musick M, Yu X. Manipulation of the tumor immuno-microenvironment via TAM-targeted expression of transcription factors. Immunol Res 2022; 70:432-440. [PMID: 35486115 DOI: 10.1007/s12026-022-09277-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/01/2022] [Indexed: 11/28/2022]
Abstract
An immunosuppressive tumor microenvironment (TME) leads to cancer growth, metastasis, and therapeutic resistance. Immunomodulatory immunotherapy aims to skew the immunosuppressive TME back to an immune active state. Tumor-associated macrophages (TAMs) are a critical component of the TME that are actively involved in tumor-specific inflammation and immunosuppression. TAMs exhibit a diverse range of phenotypes and functions, from pro-tumor to anti-tumor. The plasticity of TAMs makes them a promising target for immunotherapy, and TAM-targeted therapies via different strategies have shown great potential. This review discusses current TAM-specific delivery targets and genes of interest for TAM-reprogramming. As phagocytic cells, TAMs have several receptors that have been used to increase TAM-targeted in vivo delivery. Furthermore, a promising approach for reprogramming TAMs is to activate or suppress specific transcription factors in the signal transducers and activators of transcription (STAT) and interferon regulatory factor (IRF) families. Altering TAM transcription factor expression results in a potent shift in cytokine expression and overall TAM function potentially tipping the balance from an immunosuppressive to an immune active TME.
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Affiliation(s)
- Maggie Musick
- Department of Biological Sciences, Clemson University, 132 Long Hall, SC, 29631, Clemson, USA.
| | - Xianzhong Yu
- Department of Biological Sciences, Clemson University, 132 Long Hall, SC, 29631, Clemson, USA
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Zhang Y, Song D, Peng Z, Wang R, Li K, Ren H, Sun X, Du N, Tang SC. Anisodamine enhances macrophage M2 polarization through suppressing G9a-mediated IRF4 silencing to alleviate LPS-induced acute lung injury. J Pharmacol Exp Ther 2022; 381:247-256. [PMID: 35383125 DOI: 10.1124/jpet.121.001019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/31/2022] [Indexed: 11/22/2022] Open
Abstract
Acute lung injury (ALI) is a serious inflammatory lung disease. Imbalances in the polarization of classically activated (M1) and alternatively activated (M2) macrophages are closely related to ALI. Anisodamine has a promising therapeutic effect for septic shock. Nevertheless, the role of Anisodamine in progression of ALI remains to be investigated. Our results showed that Anisodamine significantly reduced lung damage, myeloperoxidase (MPO) activity, lung wet/dry ratio, total cell number and protein concentrations in bronchoalveolar lavage fluid (BALF), and decreased IL-6 level and the levels of M1 phenotypic markers, while increased IL-10 level and the levels of M2 phenotypic markers in mice with a nasal instillation of lipopolysaccharide (LPS). Bone marrow-derived macrophages (BMDMs) were stimulated or transfected with LPS plus Anisodamine or LPS plus G9a shRNA. Anisodamine and downregulation of G9a both promoted BMDM M2 polarization caused by IL-4 treatment and inhibited M1 polarization resulted from LPS treatment. ChIP assay revealed that Anisodamine inhibited G9a-mediated methylation and expression suppression on IRF4. Overexpression of G9a or silence of IRF4 reversed the improvement effect of Anisodamine on lung tissue injury, evidencing by an increase of MPO activity and the restoration of LPS-induced alterations of M1 and M2 polarization. In conclusion, Anisodamine protected against LPS-induced ALI, during which Anisodamine suppressed the LPS-stimulated alterations of macrophage M1 and M2 polarization through inhibiting G9a mediated methylation of IRF4, suggesting that Anisodamine was a potential therapeutic drug to alleviate ALI. Significance Statement Anisodamine treatment was able to attenuate lung injury and pulmonary edema after the stimulation of LPS, and the specific mechanism was through reversing the LPS-induced alterations of M1 and M2 polarization by inhibiting G9a mediated silencing of IRF4, which suggests the Anisodamine has the potential to alleviate ALI.
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Affiliation(s)
- Yunfeng Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Dingli Song
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Ziyang Peng
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Rui Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Kai Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Hong Ren
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Xin Sun
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Ning Du
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Shou-Ching Tang
- Cancer Center and Research Institute, University of Mississippi Medical Center, United States
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Xiao F, Wang HW, Hu JJ, Tao R, Weng XX, Wang P, Wu D, Wang XJ, Yan WM, Xi D, Luo XP, Wan XY, Ning Q. Fibrinogen-like protein 2 deficiency inhibits virus-induced fulminant hepatitis through abrogating inflammatory macrophage activation. World J Gastroenterol 2022; 28:479-496. [PMID: 35125831 PMCID: PMC8790557 DOI: 10.3748/wjg.v28.i4.479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 12/08/2021] [Accepted: 01/08/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Heterogeneous macrophages play an important role in multiple liver diseases, including viral fulminant hepatitis (VFH). Fibrinogen-like protein 2 (FGL2) is expressed on macrophages and regulates VFH pathogenesis; however, the underlying mechanism remains unclear.
AIM To explore how FGL2 regulates macrophage function and subsequent liver injury during VFH.
METHODS Murine hepatitis virus strain 3 (MHV-3) was used to induce VFH in FGL2-deficient (Fgl2-/-) and wild-type (WT) mice. The dynamic constitution of hepatic macrophages was examined. Adoptive transfer of Fgl2-/- or WT bone marrow-derived macrophages (BMDMs) into WT recipients with macrophages depleted prior to infection was carried out and the consequent degree of liver damage was compared. The signaling cascades that may be regulated by FGL2 were detected in macrophages.
RESULTS Following MHV-3 infection, hepatic macrophages were largely replenished by proinflammatory monocyte-derived macrophages (MoMFs), which expressed high levels of FGL2. In Fgl2-/- mice, the number of infiltrating inflammatory MoMFs was reduced compared with that in WT mice after viral infection. Macrophage depletion ameliorated liver damage in WT mice and further alleviated liver damage in Fgl2-/- mice. Adoptive transfer of Fgl2-/- BMDMs into macrophage-removed recipients significantly reduced the degree of liver damage. Inhibition of monocyte infiltration also significantly ameliorated liver damage. Functionally, Fgl2 deletion impaired macrophage phagocytosis and the antigen presentation potential and attenuated the proinflammatory phenotype. At the molecular level, FGL2 deficiency impaired IRF3, IRF7, and p38 phosphorylation, along with NF-κB activation in BMDMs in response to viral infection.
CONCLUSION Infiltrated MoMFs represent a major source of hepatic inflammation during VFH progression, and FGL2 expression on MoMFs maintains the proinflammatory phenotype via p38-dependent positive feedback, contributing to VFH pathogenesis.
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Affiliation(s)
- Fang Xiao
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Department of Infectious Disease, The First Affiliated Hospital of Guangxi Medical University, Nanning 530000, Guangxi Province, China
| | - Hong-Wu Wang
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Jun-Jian Hu
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ran Tao
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Xin-Xin Weng
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Peng Wang
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Di Wu
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Xiao-Jing Wang
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Wei-Ming Yan
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Dong Xi
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Xiao-Ping Luo
- Department of Pediatrics, Tongji Hospital, Wuhan 430030, Hubei Province, China
| | - Xiao-Yang Wan
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Qin Ning
- Department of Infectious Disease, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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Zhang J, Song C, Tian Y, Yang X. Single-Cell RNA Sequencing in Lung Cancer: Revealing Phenotype Shaping of Stromal Cells in the Microenvironment. Front Immunol 2022; 12:802080. [PMID: 35126365 PMCID: PMC8807562 DOI: 10.3389/fimmu.2021.802080] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/23/2021] [Indexed: 12/12/2022] Open
Abstract
The lung tumor microenvironment, which is composed of heterogeneous cell populations, plays an important role in the progression of lung cancer and is closely related to therapeutic efficacy. Increasing evidence has shown that stromal components play a key role in regulating tumor invasion, metastasis and drug resistance. Therefore, a better understanding of stromal components in the tumor microenvironment is helpful for the diagnosis and treatment of lung cancer. Rapid advances in technology have brought our understanding of disease into the genetic era, and single-cell RNA sequencing has enabled us to describe gene expression profiles with unprecedented resolution, enabling quantitative analysis of gene expression at the single-cell level to reveal the correlations among heterogeneity, signaling pathways, drug resistance and microenvironment molding in lung cancer, which is important for the treatment of this disease. In this paper, several common single-cell RNA sequencing methods and their advantages and disadvantages are briefly introduced to provide a reference for selection of suitable methods. Furthermore, we review the latest progress of single-cell RNA sequencing in the study of stromal cells in the lung tumor microenvironment.
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Chen WJ, Cao H, Cao JW, Zuo L, Qu FJ, Xu D, Zhang H, Gong HY, Chen JX, Ye JQ, Gan SS, Zhou W, Zhu DW, Pan XW, Cui XG. Heterogeneity of tumor microenvironment is associated with clinical prognosis of non-clear cell renal cell carcinoma: a single-cell genomics study. Cell Death Dis 2022; 13:50. [PMID: 35017463 PMCID: PMC8752784 DOI: 10.1038/s41419-022-04501-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 12/08/2021] [Accepted: 01/04/2022] [Indexed: 12/18/2022]
Abstract
Non-clear renal cell carcinomas (nccRCCs) are less frequent in kidney cancer with histopathological heterogeneity. A better understanding of the tumor biology of nccRCC can provide more effective treatment paradigms for different subtypes. To reveal the heterogeneity of tumor microenvironment (TME) in nccRCC, we performed 10x sing-cell genomics on tumor and normal tissues from patients with papillary renal cell carcinoma (pRCC), chromophobe RCC (chrRCC), collecting duct carcinoma (CDRCC) and sarcomatoid RCC (sarRCC). 15 tissue samples were finally included. 34561 cells were identified as 16 major cell clusters with 34 cell subtypes. Our study presented the sing-cell landscape for four types of nccRCC, and demonstrated that CD8+ T cells exhaustion, tumor-associated macrophages (TAMs) and sarcomatoid process were the pivotal factors in immunosuppression of nccRCC tissues and were closely correlated with poor prognosis. Abnormal metabolic patterns were present in both cancer cells and tumor-infiltrating stromal cells, such as fibroblasts and endothelial cells. Combined with CIBERSORTx tool, the expression data of bulk RNA-seq from TCGA were labeled with cell types of our sing-cell data. Calculation of the relative abundance of cell types revealed that greater proportion of exhausted CD8+ T cells, TAMs and sarRCC derived cells were correlated with poor prognosis in the cohort of 274 nccRCC patients. To the best of our knowledge, this is the first study that provides a more comprehensive sight about the heterogeneity and tumor biology of nccRCC, which may potentially facilitate the development of more effective therapies for nccRCC.
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Affiliation(s)
- Wen-Jin Chen
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China
| | - Hao Cao
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China.,Peking-Tsinghua Center for Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Jian-Wei Cao
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Li Zuo
- Department of Urology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 29 Xinglong Road, Changzhou, 213000, Jiangsu, China
| | - Fa-Jun Qu
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Da Xu
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China
| | - Hao Zhang
- Department of Orthopedic Oncology, Changzheng Hospital of Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Hai-Yi Gong
- Department of Orthopedic Oncology, Changzheng Hospital of Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Jia-Xin Chen
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China
| | - Jian-Qing Ye
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China
| | - Si-Shun Gan
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China
| | - Wang Zhou
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China.,Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Da-Wei Zhu
- Department of Urology, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 29 Xinglong Road, Changzhou, 213000, Jiangsu, China.
| | - Xiu-Wu Pan
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China. .,Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
| | - Xin-Gang Cui
- Department of Urology, The Third Affiliated Hospital of Second Military Medical University, 700 North Moyu Road, Shanghai, 201805, China. .,Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
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Regulation of TNF-Induced Osteoclast Differentiation. Cells 2021; 11:cells11010132. [PMID: 35011694 PMCID: PMC8750957 DOI: 10.3390/cells11010132] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/27/2022] Open
Abstract
Increased osteoclast (OC) differentiation and activity is the critical event that results in bone loss and joint destruction in common pathological bone conditions, such as osteoporosis and rheumatoid arthritis (RA). RANKL and its decoy receptor, osteoprotegerin (OPG), control OC differentiation and activity. However, there is a specific concern of a rebound effect of denosumab discontinuation in treating osteoporosis. TNFα can induce OC differentiation that is independent of the RANKL/RANK system. In this review, we discuss the factors that negatively and positively regulate TNFα induction of OC formation, and the mechanisms involved to inform the design of new anti-resorptive agents for the treatment of bone conditions with enhanced OC formation. Similar to, and being independent of, RANKL, TNFα recruits TNF receptor-associated factors (TRAFs) to sequentially activate transcriptional factors NF-κB p50 and p52, followed by c-Fos, and then NFATc1 to induce OC differentiation. However, induction of OC formation by TNFα alone is very limited, since it also induces many inhibitory proteins, such as TRAF3, p100, IRF8, and RBP-j. TNFα induction of OC differentiation is, however, versatile, and Interleukin-1 or TGFβ1 can enhance TNFα-induced OC formation through a mechanism which is independent of RANKL, TRAF6, and/or NF-κB. However, TNFα polarized macrophages also produce anabolic factors, including insulin such as 6 peptide and Jagged1, to slow down bone loss in the pathological conditions. Thus, the development of novel approaches targeting TNFα signaling should focus on its downstream molecules that do not affect its anabolic effect.
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40
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Hey J, Paulsen M, Toth R, Weichenhan D, Butz S, Schatterny J, Liebers R, Lutsik P, Plass C, Mall MA. Epigenetic reprogramming of airway macrophages promotes polarization and inflammation in muco-obstructive lung disease. Nat Commun 2021; 12:6520. [PMID: 34764283 PMCID: PMC8586227 DOI: 10.1038/s41467-021-26777-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
Lung diseases, such as cystic fibrosis and COPD, are characterized by mucus obstruction and chronic airway inflammation, but their mechanistic link remains poorly understood. Here, we focus on the function of the mucostatic airway microenvironment on epigenetic reprogramming of airway macrophages (AM) and resulting transcriptomic and phenotypical changes. Using a mouse model of muco-obstructive lung disease (Scnn1b-transgenic), we identify epigenetically controlled, differentially regulated pathways and transcription factors involved in inflammatory responses and macrophage polarization. Functionally, AMs from Scnn1b-transgenic mice have reduced efferocytosis and phagocytosis, and excessive inflammatory responses upon lipopolysaccharide challenge, mediated through enhanced Irf1 function and expression. Ex vivo stimulation of wild-type AMs with native mucus impairs efferocytosis and phagocytosis capacities. In addition, mucus induces gene expression changes, comparable with those observed in AMs from Scnn1b-transgenic mice. Our data show that mucostasis induces epigenetic reprogramming of AMs, leading to changes favoring tissue damage and disease progression. Targeting these altered AMs may support therapeutic approaches in patients with muco-obstructive lung diseases.
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Affiliation(s)
- Joschka Hey
- grid.7497.d0000 0004 0492 0584Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Ruprecht Karl University of Heidelberg, Heidelberg, Germany ,grid.452624.3Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany
| | - Michelle Paulsen
- Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany. .,Department of Translational Pulmonology, University of Heidelberg, Heidelberg, Germany. .,Novo Nordisk Foundation Center for Stem Cell Biology, University of Copenhagen, Copenhagen, Denmark.
| | - Reka Toth
- grid.7497.d0000 0004 0492 0584Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.7497.d0000 0004 0492 0584Division of Molecular Thoracic Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Dieter Weichenhan
- grid.7497.d0000 0004 0492 0584Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Simone Butz
- grid.452624.3Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Department of Translational Pulmonology, University of Heidelberg, Heidelberg, Germany
| | - Jolanthe Schatterny
- grid.452624.3Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Department of Translational Pulmonology, University of Heidelberg, Heidelberg, Germany
| | - Reinhard Liebers
- grid.7497.d0000 0004 0492 0584Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany ,grid.461742.2Present Address: National Center for Tumor Diseases (NCT), Heidelberg, Germany
| | - Pavlo Lutsik
- grid.7497.d0000 0004 0492 0584Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christoph Plass
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany. .,Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany.
| | - Marcus A. Mall
- grid.452624.3Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany ,grid.7700.00000 0001 2190 4373Department of Translational Pulmonology, University of Heidelberg, Heidelberg, Germany ,grid.7468.d0000 0001 2248 7639Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany ,grid.484013.aBerlin Institute of Health at Charité – Universitätsmedizin Berlin, Berlin, Germany ,grid.452624.3German Center for Lung Research (DZL), Associated Partner, Berlin, Germany
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41
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Yang F, Chen J, Huang XR, Yiu WH, Yu X, Tang SCW, Lan HY. Regulatory role and mechanisms of myeloid TLR4 in anti-GBM glomerulonephritis. Cell Mol Life Sci 2021; 78:6721-6734. [PMID: 34568976 PMCID: PMC8558180 DOI: 10.1007/s00018-021-03936-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/05/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022]
Abstract
Myeloid cells and TLR4 play a critical role in acute kidney injury. This study investigated the regulatory role and mechanisms of myeloid TLR4 in experimental anti-glomerular basement membrane (GBM) glomerulonephritis (GN). Anti-GBM GN was induced in tlr4flox/flox and tlr4flox/flox−lysM−cre mice by intravenous injection of the sheep anti-mouse GBM antibody. Compared to control mice, conditional disruption of tlr4 from myeloid cells, largely macrophages (> 85%), suppressed glomerular crescent formation and attenuated progressive renal injury by lowering serum creatinine and 24-h urine protein excretion while improving creatinine clearance. Mechanistically, deletion of myeloid tlr4 markedly inhibited renal infiltration of macrophages and T cells and resulted in a shift of infiltrating macrophages from F4/80+iNOS+ M1 to F4/80+CD206+ M2 phenotype and inhibited the upregulation of renal proinflammatory cytokines IL-1β and MCP-1. Importantly, deletion of myeloid tlr4 suppressed T cell-mediated immune injury by shifting Th1 (CD4+IFNγ+) and Th17 (CD4+IL-17a+) to Treg (CD4+CD25+FoxP3+) immune responses. Transcriptome analysis also revealed that disrupted myeloid TLR4 largely downregulated genes involving immune and cytokine-related pathways. Thus, myeloid TLR4 plays a pivotal role in anti-GBM GN by immunological switching from M1 to M2 and from Th1/Th17 to Treg and targeting myeloid TLR4 may be a novel therapeutic strategy for immune-mediated kidney diseases.
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Affiliation(s)
- Fuye Yang
- Department of Nephrology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, People's Republic of China.,Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, People's Republic of China
| | - Jiaoyi Chen
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, People's Republic of China
| | - Xiao Ru Huang
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, People's Republic of China.,Guangdong-Hong Kong Joint Laboratory on Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, 510080, People's Republic of China
| | - Wai Han Yiu
- Division of Nephrology, Department of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Xueqing Yu
- Guangdong-Hong Kong Joint Laboratory on Immunological and Genetic Kidney Diseases, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, 510080, People's Republic of China
| | - Sydney C W Tang
- Division of Nephrology, Department of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
| | - Hui Yao Lan
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, Lui Che Woo Institute of Innovative Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, People's Republic of China. .,The CUHK-Guangdong Provincial People's Hospital Joint Research Laboratory on Immunological and Genetic Kidney Diseases, The Chinese University of Hong Kong, Hong Kong SAR, People's Republic of China.
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42
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Barrett JP, Knoblach SM, Bhattacharya S, Gordish-Dressman H, Stoica BA, Loane DJ. Traumatic Brain Injury Induces cGAS Activation and Type I Interferon Signaling in Aged Mice. Front Immunol 2021; 12:710608. [PMID: 34504493 PMCID: PMC8423402 DOI: 10.3389/fimmu.2021.710608] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 08/05/2021] [Indexed: 12/21/2022] Open
Abstract
Aging adversely affects inflammatory processes in the brain, which has important implications in the progression of neurodegenerative disease. Following traumatic brain injury (TBI), aged animals exhibit worsened neurological function and exacerbated microglial-associated neuroinflammation. Type I Interferons (IFN-I) contribute to the development of TBI neuropathology. Further, the Cyclic GMP-AMP Synthase (cGAS) and Stimulator of Interferon Genes (STING) pathway, a key inducer of IFN-I responses, has been implicated in neuroinflammatory activity in several age-related neurodegenerative diseases. Here, we set out to investigate the effects of TBI on cGAS/STING activation, IFN-I signaling and neuroinflammation in young and aged C57Bl/6 male mice. Using a controlled cortical impact model, we evaluated transcriptomic changes in the injured cortex at 24 hours post-injury, and confirmed activation of key neuroinflammatory pathways in biochemical studies. TBI induced changes were highly enriched for transcripts that were involved in inflammatory responses to stress and host defense. Deeper analysis revealed that TBI increased expression of IFN-I related genes (e.g. Ifnb1, Irf7, Ifi204, Isg15) and IFN-I signaling in the injured cortex of aged compared to young mice. There was also a significant age-related increase in the activation of the DNA-recognition pathway, cGAS, which is a key mechanism to propagate IFN-I responses. Finally, enhanced IFN-I signaling in the aged TBI brain was confirmed by increased phosphorylation of STAT1, an important IFN-I effector molecule. This age-related activation of cGAS and IFN-I signaling may prove to be a mechanistic link between microglial-associated neuroinflammation and neurodegeneration in the aged TBI brain.
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Affiliation(s)
- James P Barrett
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Susan M Knoblach
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, United States.,Department of Genomics and Precision Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Surajit Bhattacharya
- Center for Genetic Medicine Research, Children's Research Institute, Children's National Health System, Washington, DC, United States
| | - Heather Gordish-Dressman
- Center for Translational Science, Children's Research Institute, Children's National Health System, Washington, DC, United States.,Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington, DC, United States
| | - Bogdan A Stoica
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, United States.,Veterans Affairs (VA) Maryland Health Care System, Baltimore VA Medical Center, Baltimore, MD, United States
| | - David J Loane
- Department of Anesthesiology and Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD, United States.,School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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43
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Smith NC, Umasuthan N, Kumar S, Woldemariam NT, Andreassen R, Christian SL, Rise ML. Transcriptome Profiling of Atlantic Salmon Adherent Head Kidney Leukocytes Reveals That Macrophages Are Selectively Enriched During Culture. Front Immunol 2021; 12:709910. [PMID: 34484211 PMCID: PMC8415484 DOI: 10.3389/fimmu.2021.709910] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/05/2021] [Indexed: 01/23/2023] Open
Abstract
The Atlantic salmon (Salmo salar) is an economically important fish, both in aquaculture and in the wild. In vertebrates, macrophages are some of the first cell types to respond to pathogen infection and disease. While macrophage biology has been characterized in mammals, less is known in fish. Our previous work identified changes in the morphology, phagocytic ability, and miRNA profile of Atlantic salmon adherent head kidney leukocytes (HKLs) from predominantly “monocyte-like” at Day 1 of in vitro culture to predominantly “macrophage-like” at Day 5 of culture. Therefore, to further characterize these two cell populations, we examined the mRNA transcriptome profile in Day 1 and Day 5 HKLs using a 44K oligonucleotide microarray. Large changes in the transcriptome were revealed, including changes in the expression of macrophage and immune-related transcripts (e.g. csf1r, arg1, tnfa, mx2), lipid-related transcripts (e.g. fasn, dhcr7, fabp6), and transcription factors involved in macrophage differentiation and function (e.g. klf2, klf9, irf7, irf8, stat1). The in silico target prediction analysis of differentially expressed genes (DEGs) using miRNAs known to change expression in Day 5 HKLs, followed by gene pathway enrichment analysis, supported that these miRNAs may be involved in macrophage maturation by targeting specific DEGs. Elucidating how immune cells, such as macrophages, develop and function is a key step in understanding the Atlantic salmon immune system. Overall, the results indicate that, without the addition of exogenous factors, the adherent HKL cell population differentiates in vitro to become macrophage-like.
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Affiliation(s)
- Nicole C Smith
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, Canada
| | | | - Surendra Kumar
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Nardos T Woldemariam
- Department of Life Sciences and Health, OsloMet-Oslo Metropolitan University, Oslo, Norway
| | - Rune Andreassen
- Department of Life Sciences and Health, OsloMet-Oslo Metropolitan University, Oslo, Norway
| | - Sherri L Christian
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Matthew L Rise
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, Canada
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Pandey V, Fleming-Martinez A, Bastea L, Doeppler HR, Eisenhauer J, Le T, Edenfield B, Storz P. CXCL10/CXCR3 signaling contributes to an inflammatory microenvironment and its blockade enhances progression of murine pancreatic precancerous lesions. eLife 2021; 10:60646. [PMID: 34328416 PMCID: PMC8360647 DOI: 10.7554/elife.60646] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 07/29/2021] [Indexed: 01/18/2023] Open
Abstract
The development of pancreatic cancer requires recruitment and activation of different macrophage populations. However, little is known about how macrophages are attracted to the pancreas after injury or an oncogenic event, and how they crosstalk with lesion cells or other cells of the lesion microenvironment. Here, we delineate the importance of CXCL10/CXCR3 signaling during the early phase of murine pancreatic cancer. We show that CXCL10 is produced by pancreatic precancerous lesion cells in response to IFNγ signaling and that inflammatory macrophages are recipients for this chemokine. CXCL10/CXCR3 signaling in macrophages mediates their chemoattraction to the pancreas, enhances their proliferation, and maintains their inflammatory identity. Blocking of CXCL10/CXCR3 signaling in vivo shifts macrophage populations to a tumor-promoting (Ym1+, Fizz+, Arg1+) phenotype, increases fibrosis, and mediates progression of lesions, highlighting the importance of this pathway in PDA development. This is reversed when CXCL10 is overexpressed in PanIN cells.
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Affiliation(s)
- Veethika Pandey
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Alicia Fleming-Martinez
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Ligia Bastea
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Heike R Doeppler
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Jillian Eisenhauer
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Tam Le
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Brandy Edenfield
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
| | - Peter Storz
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Mayo Clinic, Jacksonville, United States
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Vegting Y, Vogt L, Anders HJ, de Winther MPJ, Bemelman FJ, Hilhorst ML. Monocytes and macrophages in ANCA-associated vasculitis. Autoimmun Rev 2021; 20:102911. [PMID: 34298153 DOI: 10.1016/j.autrev.2021.102911] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 06/05/2021] [Indexed: 12/15/2022]
Abstract
Anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitides (AAV) are characterized by inflammation of small-to-medium-sized blood vessels and the presence of autoantibodies against cytoplasmic proteases sited in neutrophils and monocytes. Increasing evidence indicates a substantial role of monocytes and macrophages in the pathogenesis of AAV. Activated monocytes and macrophages contribute to necroinflammation in peripheral vasculitic lesions as well as to central and peripheral mechanisms of autoimmunity. The intermediate monocyte subset (CD14++CD16+) is increased and monocytes show elevated expression of CD14, Toll-like receptor 2/4, MHCII and integrins, likely reflecting activation and increased monocyte extravasation. Monocytes differentiate locally predominantly into alternatively activated (M2) macrophages, which are known for cell-clearance and phagocytosis, but may ultimately lead to fibrosis. Phagocytotic function of macrophages can be impaired by surface expression of cytoplasmic proteases on apoptotic neutrophils and causes release of inflammatory cytokines and immunogenic contents, presumably resulting in a vicious circle of increased neutrophil, T and B cell activation and consequent ANCA production. Considering their crucial role in initiating necroinflammation as well as fibrogenesis, monocytes and macrophages may represent a logic first-line target for new treatment options in AAV.
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Affiliation(s)
- Yosta Vegting
- Department of Internal Medicine, Section of Nephrology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
| | - Liffert Vogt
- Department of Internal Medicine, Section of Nephrology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Hans-Joachim Anders
- Department of Internal Medicine IV, Division of Nephrology, University Hospital of the Ludwig Maximilians University Munich, Munich, Germany
| | - Menno P J de Winther
- Department of Medical Biochemistry, Amsterdam Cardiovascular Sciences, Amsterdam Infection and Immunity, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Frederike J Bemelman
- Department of Internal Medicine, Section of Nephrology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Marc L Hilhorst
- Department of Internal Medicine, Section of Nephrology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
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Li N, Steiger S, Fei L, Li C, Shi C, Salei N, Schraml BU, Zheng Z, Anders HJ, Lichtnekert J. IRF8-Dependent Type I Conventional Dendritic Cells (cDC1s) Control Post-Ischemic Inflammation and Mildly Protect Against Post-Ischemic Acute Kidney Injury and Disease. Front Immunol 2021; 12:685559. [PMID: 34234783 PMCID: PMC8255684 DOI: 10.3389/fimmu.2021.685559] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/26/2021] [Indexed: 11/13/2022] Open
Abstract
Post-ischemic acute kidney injury and disease (AKI/AKD) involve acute tubular necrosis and irreversible nephron loss. Mononuclear phagocytes including conventional dendritic cells (cDCs) are present during different phases of injury and repair, but the functional contribution of this subset remains controversial. Transcription factor interferon regulatory factor 8 (IRF8) is required for the development of type I conventional dendritic cells (cDC1s) lineage and helps to define distinct cDC1 subsets. We identified one distinct subset among mononuclear phagocyte subsets according to the expression patterns of CD11b and CD11c in healthy kidney and lymphoid organs, of which IRF8 was significantly expressed in the CD11blowCD11chigh subset that mainly comprised cDC1s. Next, we applied a Irf8-deficient mouse line (Irf8fl/flClec9acre mice) to specifically target Clec9a-expressing cDC1s in vivo. During post-ischemic AKI/AKD, these mice lacked cDC1s in the kidney without affecting cDC2s. The absence of cDC1s mildly aggravated the loss of living primary tubule and decline of kidney function, which was associated with decreased anti-inflammatory Tregs-related immune responses, but increased T helper type 1 (TH1)-related and pro-inflammatory cytokines, infiltrating neutrophils and acute tubular cell death, while we also observed a reduced number of cytotoxic CD8+ T cells in the kidney when cDC1s were absent. Together, our data show that IRF8 is indispensable for kidney cDC1s. Kidney cDC1s mildly protect against post-ischemic AKI/AKD, probably via suppressing tissue inflammation and damage, which implies an immunoregulatory role for cDC1s.
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Affiliation(s)
- Na Li
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shen Zhen, China.,Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Stefanie Steiger
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Lingyan Fei
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shen Zhen, China
| | - Chenyu Li
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Chongxu Shi
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Natallia Salei
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany.,Institute for Cardiovascular Physiology and Pathophysiology, Biomedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Barbara U Schraml
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany.,Institute for Cardiovascular Physiology and Pathophysiology, Biomedical Center, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Zhihua Zheng
- Department of Nephrology, Center of Kidney and Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shen Zhen, China
| | - Hans-Joachim Anders
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - Julia Lichtnekert
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
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Chen X, Guan Y, Li K, Luo T, Mu Y, Chen X. IRF1 and IRF2 act as positive regulators in antiviral response of large yellow croaker (Larimichthys crocea) by induction of distinct subgroups of type I IFNs. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 118:103996. [PMID: 33444646 DOI: 10.1016/j.dci.2021.103996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/06/2021] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Interferon regulatory factors (IRFs) are crucial transcription factors involved in transcriptional regulation of type I interferons (IFNs) and IFN-stimulated genes (ISGs) against viral infection. In teleost fish, eleven IRFs have been found, however, understanding of their roles in the antiviral response remains limited. In the previous study, IRF1 (LcIRF1) and IRF2 (LcIRF2) genes were cloned from large yellow croaker (Larimichthys crocea). Here, we further characterized their function in the antiviral response. LcIRF1 and LcIRF2 were constitutively expressed in primary head kidney monocytes/macrophages (PKMs), lymphocytes (PKLs), granulocytes (PKGs) and large yellow croaker head kidney (LYCK) cell line, and significantly upregulated in PKMs and LYCK cells after stimulation with poly (I:C). LcIRF1 could induce promoter activities of three large yellow croaker type I IFNs, IFNc, IFNd and IFNh, while LcIRF2 could only induce those of IFNd and IFNh, and inhibit IFNc promoter activity. Correspondingly, overexpression of LcIRF1 in LYCK cells increased expression of all three IFNs (IFNc, IFNd and IFNh), while that of LcIRF2 only upregulated the expression levels of IFNd and IFNh, and inhibited expression of IFNc, although both LcIRF1and LcIRF2 induced expression of IFN-stimulated genes (ISGs), MxA, PKR and Viperin. Additionally, both LcIRF1 and LcIRF2 inhibited the Spring Viremia of Carp Virus (SVCV) replication in epithelioma papulosum cyprinid (EPC) cells, thus showing antiviral activity. Taken together, these results indicated that both LcIRF1 and LcIRF2 play positive roles in regulating the antiviral response of large yellow croaker by induction of distinct subgroups of type I IFNs.
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Affiliation(s)
- Xiaojuan Chen
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yanyun Guan
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Kexin Li
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Tian Luo
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yinnan Mu
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xinhua Chen
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519000, China.
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Phosphorylation of Microglial IRF5 and IRF4 by IRAK4 Regulates Inflammatory Responses to Ischemia. Cells 2021; 10:cells10020276. [PMID: 33573200 PMCID: PMC7912637 DOI: 10.3390/cells10020276] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Background: Interferon Regulatory Factor (IRF) 5 and 4 play a determinant role in regulating microglial pro- and anti-inflammatory responses to cerebral ischemia. How microglial IRF5 and IRF4 signaling are activated has been elusive. We hypothesized that interleukin-1 receptor associated kinase 4 (IRAK4) phosphorylates and activates IRF5 and IRF4 in ischemic microglia. We aimed to explore the upstream signals of the two IRFs, and to determine how the IRAK4-IRF signaling regulates the expression of inflammatory mediators, and impacts neuropathology. Methods: Spontaneously Immortalized Murine (SIM)-A9 microglial cell line, primary microglia and neurons from C57BL/6 WT mice were cultured and exposed to oxygen-glucose deprivation (OGD), followed by stimulation with LPS or IL-4. An IRAK4 inhibitor (ND2158) was used to examine IRAK4′s effects on the phosphorylation of IRF5/IRF4 and the impacts on neuronal morphology by co-immunoprecipitation (Co-IP)/Western blot, ELISA, and immunofluorescence assays. Results: We confirmed that IRAK4 formed a Myddosome with MyD88/IRF5/IRF4, and phosphorylated both IRFs, which subsequently translocated into the nucleus. Inhibition of IRAK4 phosphorylation quenched microglial pro-inflammatory response primarily, and increased neuronal viability and neurite lengths after ischemia. Conclusions: IRAK4 signaling is critical for microglial inflammatory responses and a potential therapeutic target for neuroinflammatory diseases including cerebral ischemia.
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Sun X, Sun P, Liu L, Jiang P, Li Y. Ferulic acid attenuates microglia-mediated neuroinflammation in retinal degeneration. BMC Ophthalmol 2021; 21:13. [PMID: 33407277 PMCID: PMC7789661 DOI: 10.1186/s12886-020-01765-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 12/14/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Retinal degeneration is often accompanied by microglia-mediated neuroinflammation. Ferulic acid (FA), an active ingredient of traditional Chinese medicines (TCMs), has been reported to have anti-inflammatory effects. This study explores the impact of FA on microglia-mediated neuroinflammation and associated retinal degeneration in rd10 mice. METHODS Rd10 mice received different concentrations of FA every day from postnatal day (P)4 to P24. On P25, the visual function of the mice was evaluated by electroretinogram, and retinae were collected for further investigation. Microglial activation and the expression of relevant cytokines in the retina were evaluated by qPCR, western blotting and immunofluorescence staining. Retinal structure was assessed by haematoxylin and eosin (HE) staining. RESULTS Supplementation with 50 mg/kg FA provided optimal protection against retinal degeneration, with treated mice exhibiting more photoreceptor nuclei as well as greater wave amplitude amplification on electroretinogram than untreated mice. FA suppressed microglial activation both in vivo and in vitro, and inhibited the expression of pro-inflammatory factors Tnfα, IL1β, and Ccl2 in the retinae of rd10 mice. Furthermore, FA suppressed the activation of STAT1 and subsequently inhibited IRF8 expression, potentially highlighting a role for these pathways in FA-mediated immunomodulatory activity. CONCLUSIONS Attenuation of neuroinflammation by FA may be beneficial for retarding retinal degeneration.
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Affiliation(s)
- Xiaowei Sun
- Department of Ophthalmology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - Peng Sun
- Department of Ophthalmology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - Limei Liu
- Department of Ophthalmology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China
| | - Pengfei Jiang
- Department of Ophthalmology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China.
| | - Yuanbin Li
- Department of Ophthalmology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, People's Republic of China.
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50
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Johnson CSC, Shively C, Michalson KT, Lea AJ, DeBo RJ, Howard TD, Hawkins GA, Appt SE, Liu Y, McCall CE, Herrington DM, Ip EH, Register TC, Snyder-Mackler N. Contrasting effects of Western vs Mediterranean diets on monocyte inflammatory gene expression and social behavior in a primate model. eLife 2021; 10:68293. [PMID: 34338633 PMCID: PMC8423447 DOI: 10.7554/elife.68293] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/28/2021] [Indexed: 01/20/2023] Open
Abstract
Dietary changes associated with industrialization increase the prevalence of chronic diseases, such as obesity, type II diabetes, and cardiovascular disease. This relationship is often attributed to an 'evolutionary mismatch' between human physiology and modern nutritional environments. Western diets enriched with foods that were scarce throughout human evolutionary history (e.g. simple sugars and saturated fats) promote inflammation and disease relative to diets more akin to ancestral human hunter-gatherer diets, such as a Mediterranean diet. Peripheral blood monocytes, precursors to macrophages and important mediators of innate immunity and inflammation, are sensitive to the environment and may represent a critical intermediate in the pathway linking diet to disease. We evaluated the effects of 15 months of whole diet manipulations mimicking Western or Mediterranean diet patterns on monocyte polarization in a well-established model of human health, the cynomolgus macaque (Macaca fascicularis). Monocyte transcriptional profiles differed markedly between diets, with 40% of transcripts showing differential expression (FDR < 0.05). Monocytes from Western diet consumers were polarized toward a more proinflammatory phenotype. The Western diet shifted the co-expression of 445 gene pairs, including small RNAs and transcription factors associated with metabolism and adiposity in humans, and dramatically altered behavior. For example, Western-fed individuals were more anxious and less socially integrated. These behavioral changes were also associated with some of the effects of diet on gene expression, suggesting an interaction between diet, central nervous system activity, and monocyte gene expression. This study provides new molecular insights into an evolutionary mismatch and uncovers new pathways through which Western diets alter monocyte polarization toward a proinflammatory phenotype.
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Affiliation(s)
- Corbin SC Johnson
- Department of Psychology, University of WashingtonSeattleUnited States
| | - Carol Shively
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Kristofer T Michalson
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Amanda J Lea
- Lewis-Sigler Institute for Integrative Genomics, Princeton UniversityPrincetonUnited States,Department of Ecology and Evolutionary Biology, Princeton UniversityPrincetonUnited States
| | - Ryne J DeBo
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Timothy D Howard
- Department of Biochemistry, Wake Forest School of MedicineWinston-SalemUnited States
| | - Gregory A Hawkins
- Department of Biochemistry, Wake Forest School of MedicineWinston-SalemUnited States
| | - Susan E Appt
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Yongmei Liu
- Division of Cardiology, Duke University School of MedicineDurhamUnited States
| | - Charles E McCall
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - David M Herrington
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Edward H Ip
- Department of Biostatistics and Data Science, Wake Forest School of MedicineWinston-SalemUnited States
| | - Thomas C Register
- Department of Pathology, Section on Comparative Medicine, Wake Forest School of MedicineWinston-SalemUnited States
| | - Noah Snyder-Mackler
- Department of Psychology, University of WashingtonSeattleUnited States,Center for Studies in Demography and Ecology, University of WashingtonSeattleUnited States,Department of Biology, University of WashingtonSeattleUnited States,School of Life Sciences, Arizona State UniversityTempeUnited States,Center for Evolution & Medicine, Arizona State UniversityTempeUnited States
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