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Wolf SJ, Audu CO, Moon JY, Joshi AD, Melvin WJ, Barrett EC, Mangum K, de Jimenez GS, Rocco S, Buckley S, Ahmed Z, Wasikowski R, Kahlenberg JM, Tsoi LC, Gudjonsson JE, Gallagher KA. Diabetic Wound Keratinocytes Induce Macrophage JMJD3-Mediated Nlrp3 Expression via IL-1R Signaling. Diabetes 2024; 73:1462-1472. [PMID: 38869447 PMCID: PMC11333374 DOI: 10.2337/db23-0968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Macrophage (Mφ) plasticity is critical for normal wound repair; however, in type 2 diabetic wounds, Mφs persist in a low-grade inflammatory state that prevents the resolution of wound inflammation. Increased NLRP3 inflammasome activity has been shown in diabetic wound Mφs; however, the molecular mechanisms regulating NLRP3 expression and activity are unclear. Here, we identified that diabetic wound keratinocytes induce Nlrp3 gene expression in wound Mφs through IL-1 receptor-mediated signaling, resulting in enhanced inflammasome activation in the presence of pathogen-associated molecular patterns and damage-associated molecular patterns. We found that IL-1α is increased in human and murine wound diabetic keratinocytes compared with nondiabetic controls and directly induces Mφ Nlrp3 expression through IL-1 receptor signaling. Mechanistically, we report that the histone demethylase, JMJD3, is increased in wound Mφs late post-injury and is induced by IL-1α from diabetic wound keratinocytes, resulting in Nlrp3 transcriptional activation through an H3K27me3-mediated mechanism. Using genetically engineered mice deficient in JMJD3 in myeloid cells (Jmjd3f/flyz2Cre+), we demonstrate that JMJD3 controls Mφ-mediated Nlrp3 expression during diabetic wound healing. Thus, our data suggest a role for keratinocyte-mediated IL-1α/IL-1R signaling in driving enhanced NLRP3 inflammasome activity in wound Mφs. These data also highlight the importance of cell cross-talk in wound tissues and identify JMJD3 and the IL-1R signaling cascade as important upstream therapeutic targets for Mφ NLRP3 inflammasome hyperactivity in nonhealing diabetic wounds. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Sonya J. Wolf
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Christopher O. Audu
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Jadie Y. Moon
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Amrita D. Joshi
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - William J. Melvin
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Emily C. Barrett
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Kevin Mangum
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - Sabrina Rocco
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Sam Buckley
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Zara Ahmed
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | | | - J. Michelle Kahlenberg
- Department of Dermatology, University of Michigan, Ann Arbor, MI
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Lam C. Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI
| | | | - Katherine A. Gallagher
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI
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Vu Manh TP, Gouin C, De Wolf J, Jouneau L, Pascale F, Bevilacqua C, Ar Gouilh M, Da Costa B, Chevalier C, Glorion M, Hannouche L, Urien C, Estephan J, Magnan A, Le Guen M, Marquant Q, Descamps D, Dalod M, Schwartz-Cornil I, Sage E. SARS-CoV2 infection in whole lung primarily targets macrophages that display subset-specific responses. Cell Mol Life Sci 2024; 81:351. [PMID: 39147987 PMCID: PMC11335275 DOI: 10.1007/s00018-024-05322-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: 11/09/2023] [Revised: 05/22/2024] [Accepted: 06/05/2024] [Indexed: 08/17/2024]
Abstract
Deciphering the initial steps of SARS-CoV-2 infection, that influence COVID-19 outcomes, is challenging because animal models do not always reproduce human biological processes and in vitro systems do not recapitulate the histoarchitecture and cellular composition of respiratory tissues. To address this, we developed an innovative ex vivo model of whole human lung infection with SARS-CoV-2, leveraging a lung transplantation technique. Through single-cell RNA-seq, we identified that alveolar and monocyte-derived macrophages (AMs and MoMacs) were initial targets of the virus. Exposure of isolated lung AMs, MoMacs, classical monocytes and non-classical monocytes (ncMos) to SARS-CoV-2 variants revealed that while all subsets responded, MoMacs produced higher levels of inflammatory cytokines than AMs, and ncMos contributed the least. A Wuhan lineage appeared to be more potent than a D614G virus, in a dose-dependent manner. Amidst the ambiguity in the literature regarding the initial SARS-CoV-2 cell target, our study reveals that AMs and MoMacs are dominant primary entry points for the virus, and suggests that their responses may conduct subsequent injury, depending on their abundance, the viral strain and dose. Interfering on virus interaction with lung macrophages should be considered in prophylactic strategies.
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Affiliation(s)
- Thien-Phong Vu Manh
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, 13009, Marseille, France.
| | - Carla Gouin
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
| | - Julien De Wolf
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, 92150, Suresnes, France
| | - Luc Jouneau
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Université Paris-Saclay, INRAE, UVSQ, BREED, 78350, Jouy-en-Josas, France
| | - Florentina Pascale
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, 92150, Suresnes, France
| | - Claudia Bevilacqua
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France
| | - Meriadeg Ar Gouilh
- Department of Virology, Univ Caen Normandie, Dynamicure INSERM UMR 1311, CHU Caen, 14000, Caen, France
| | - Bruno Da Costa
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
| | | | - Matthieu Glorion
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, 92150, Suresnes, France
| | - Laurent Hannouche
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, 13009, Marseille, France
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
| | - Céline Urien
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
| | - Jérôme Estephan
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
| | - Antoine Magnan
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Pulmonology, Foch Hospital, 92150, Suresnes, France
| | - Morgan Le Guen
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Anesthesiology, Foch Hospital, 92150, Suresnes, France
| | - Quentin Marquant
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Pulmonology, Foch Hospital, 92150, Suresnes, France
- Delegation to Clinical Research and Innovation, Foch Hospital, 92150, Suresnes, France
| | - Delphyne Descamps
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
| | - Marc Dalod
- Aix-Marseille University, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Turing Center for Living Systems, 13009, Marseille, France
| | | | - Edouard Sage
- Université Paris-Saclay, INRAE, UVSQ, VIM, 78350, Jouy-en-Josas, France
- Department of Thoracic Surgery and Lung Transplantation, Foch Hospital, 92150, Suresnes, France
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Wang H, Zhang Y, Zhang Y, Li C, Zhang M, Wang J, Zhang Y, Du Y, Cui W, Chen W. Activating Macrophage Continual Efferocytosis via Microenvironment Biomimetic Short Fibers for Reversing Inflammation in Bone Repair. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402968. [PMID: 38706203 DOI: 10.1002/adma.202402968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/30/2024] [Indexed: 05/07/2024]
Abstract
Efferocytosis-mediated inflammatory reversal plays a crucial role in bone repairing process. However, in refractory bone defects, the macrophage continual efferocytosis may be suppressed due to the disrupted microenvironment homeostasis, particularly the loss of apoptotic signals and overactivation of intracellular oxidative stress. In this study, a polydopamine-coated short fiber matrix containing biomimetic "apoptotic signals" to reconstruct the microenvironment and reactivate macrophage continual efferocytosis for inflammatory reversal and bone defect repair is presented. The "apoptotic signals" (AM/CeO2) are prepared using CeO2 nanoenzymes with apoptotic neutrophil membrane coating for macrophage recognition and oxidative stress regulation. Additionally, a short fiber "biomimetic matrix" is utilized for loading AM/CeO2 signals via abundant adhesion sites involving π-π stacking and hydrogen bonding interactions. Ultimately, the implantable apoptosis-mimetic nanoenzyme/short-fiber matrixes (PFS@AM/CeO2), integrating apoptotic signals and biomimetic matrixes, are constructed to facilitate inflammatory reversal and reestablish the pro-efferocytosis microenvironment. In vitro and in vivo data indicate that the microenvironment biomimetic short fibers can activate macrophage continual efferocytosis, leading to the suppression of overactivated inflammation. The enhanced repair of rat femoral defect further demonstrates the osteogenic potential of the pro-efferocytosis strategy. It is believed that the regulation of macrophage efferocytosis through microenvironment biomimetic materials can provide a new perspective for tissue repair.
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Affiliation(s)
- Haoran Wang
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yu Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yipu Zhang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
- Department of Orthopaedics, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing, 100191, P. R. China
| | - Chao Li
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Mo Zhang
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
| | - Juan Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Yingze Zhang
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
| | - Yawei Du
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
| | - Wei Chen
- Department of Orthopaedic Surgery, the Hebei Medical University Third Hospital, Key Laboratory of Biomechanics of Hebei Province, Orthopaedic Research Institution of Hebei Province, NHC Key Laboratory of Intelligent Orthopaedic Equipment, No.139 Ziqiang Road, Shijiazhuang, 050051, P. R. China
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Shi K, Liu X, Duan Y, Jiang X, Li N, Du Y, Li D, Feng C. Dynamic Changes in Intestinal Gene Expression and Microbiota across Chicken Egg-Laying Stages. Animals (Basel) 2024; 14:1529. [PMID: 38891577 PMCID: PMC11171086 DOI: 10.3390/ani14111529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
Eggs are a vital dietary component for humans, and it is beneficial to increase egg production to support poultry farming. Initially, the egg production rate rises rapidly with young hens until it reaches its peak, and then it declines gradually. By extending the duration of peak egg production, the hens' performance can be enhanced significantly. Previous studies found dynamic changes in gut microbiota during egg-laying, and several species of microbiota isolated from the chicken gut improved egg-laying performance. However, the interaction between microbes and host gene expression is still unclear. This study provides a more comprehensive understanding of chicken egg-laying by examining dynamic alterations in the microbiota of the entire intestinal tract (i.e., duodenum, jejunum, and ileum) and gene expression. The microbial community in the intestine underwent significant changes during different egg-laying periods (i.e., pre-, peak-, and late-laying periods). Metagenomic functional analysis showed that the relative abundance of biosynthesis of amino acids, secondary metabolites, and cofactors decreased significantly in the duodenum, jejunum, and ileum of aging hens. The relative levels of aldosterone, GnRH, insulin, growth hormone, and other hormone-related pathways increased dramatically in the intestinal microbiota during egg-laying, but only in the microbiota located in the duodenum and ileum. Transcriptome analysis suggested that genes associated with various transport processes were upregulated consistently in the small intestine during egg-laying; genes involved in the development of intestinal structure were down-regulated; and genes involved in response to DNA damage and stress were consistent with changes in laying rate. The abundance of Lactobacillus was related to the expression of ANGPTRL1, ANGPTRL2, ANGPT1L, and NOXO1 in the duodenum; Muricomes was correlated significantly with NFKBIZ, LYG2, and IRG1L expression in the jejunum; and Campylobacter was correlated positively with the expression of KMT2A and USF3 in the ileum. These results indicated that the intestinal microbiota and host gene expression may influence egg production jointly.
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Affiliation(s)
| | | | | | | | | | | | | | - Chungang Feng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (K.S.); (X.J.); (D.L.)
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Elizaldi SR, Hawes CE, Verma A, Dinasarapu AR, Lakshmanappa YS, Schlegel BT, Rajasundaram D, Li J, Durbin-Johnson BP, Ma ZM, Beckman D, Ott S, Lifson J, Morrison JH, Iyer SS. CCR7+ CD4 T Cell Immunosurveillance Disrupted in Chronic SIV-Induced Neuroinflammation in Rhesus Brain. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.28.555037. [PMID: 37693567 PMCID: PMC10491118 DOI: 10.1101/2023.08.28.555037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
CD4 T cells survey and maintain immune homeostasis in the brain, yet their differentiation states and functional capabilities remain unclear. Our approach, combining single-cell transcriptomic analysis, ATAC-seq, spatial transcriptomics, and flow cytometry, revealed a distinct subset of CCR7+ CD4 T cells resembling lymph node central memory (T CM ) cells. We observed chromatin accessibility at the CCR7, CD28, and BCL-6 loci, defining molecular features of T CM . Brain CCR7+ CD4 T cells exhibited recall proliferation and interleukin-2 production ex vivo, showcasing their functional competence. We identified the skull bone marrow as a local niche for these cells alongside other CNS border tissues. Sequestering T CM cells in lymph nodes using FTY720 led to reduced CCR7+ CD4 T cell frequencies in the cerebrospinal fluid, accompanied by increased monocyte levels and soluble markers indicating immune activation. In macaques chronically infected with SIVCL57 and experiencing viral rebound due to cessation of antiretroviral therapy, a decrease in brain CCR7+ CD4 T cells was observed, along with increased microglial activation and initiation of neurodegenerative pathways. Our findings highlight a role for CCR7+ CD4 T cells in CNS immune surveillance and their decline during chronic SIV-induced neuroinflammation highlights their responsiveness to neuroinflammatory processes. GRAPHICAL ABSTRACT In Brief Utilizing single-cell and spatial transcriptomics on adult rhesus brain, we uncover a unique CCR7+ CD4 T cell subset resembling central memory T cells (T CM ) within brain and border tissues, including skull bone marrow. Our findings show decreased frequencies of this subset during SIV- induced chronic neuroinflammation, emphasizing responsiveness of CCR7+ CD4 T cells to CNS disruptions. Highlights CCR7+ CD4 T cells survey border and parenchymal CNS compartments during homeostasis; reduced presence of CCR7+ CD4 T cells in cerebrospinal fluid leads to immune activation, implying a role in neuroimmune homeostasis. CNS CCR7+ CD4 T cells exhibit phenotypic and functional features of central memory T cells (T CM ) including production of interleukin 2 and the capacity for rapid recall proliferation. Furthermore, CCR7+ CD4 T cells reside in the skull bone marrow. CCR7+ CD4 T cells are markedly decreased within the brain parenchyma during chronic viral neuroinflammation.
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Schaller MA. MLL1 is central to macrophage-mediated inflammation. Blood 2023; 141:687-689. [PMID: 36795448 PMCID: PMC9933578 DOI: 10.1182/blood.2022019181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
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