1
|
Chen H, Song J, Zeng L, Zha J, Zhu J, Chen A, Liu Y, Dong Z, Chen G. Dietary sodium modulates mTORC1-dependent trained immunity in macrophages to accelerate CKD development. Biochem Pharmacol 2024; 229:116505. [PMID: 39181336 DOI: 10.1016/j.bcp.2024.116505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 08/15/2024] [Accepted: 08/20/2024] [Indexed: 08/27/2024]
Abstract
Chronic Kidney Disease (CKD) is a significant global health issue linked to dietary habits, especially high salt intake. However, the precise mechanisms driving this progression remain incompletely understood. This study reveals that a high-salt diet intensifies macrophage trained immunity, leading to a marked pro-inflammatory response upon repeated pathogenic exposures, as evidenced by increased renal damage and fibrosis. Under high-salt conditions, there was an induction of CD45+F4/80+ macrophage infiltration into the renal tissue, accompanied by heightened production of inflammatory cytokines. Distinct responses were observed between circulating and resident renal macrophages to a high-salt diet, with a notable upsurge in the migration of pro-inflammatory macrophages, driven by CCL2-CCR2 signaling and aberrant mTORC1 pathway activation. Treatment with rapamycin-liposome effectively reduced this inflammatory cascade by mitigating mTORC1 signaling. Transplantation of monocytes from CKD mice with a high-salt diet significantly exacerbates renal inflammatory damage in the host mice, showing increased migratory tendency and inflammatory activity. The cell co-culture experiment further confirmed that macrophages derived from CKD mice, particularly those under conditions of high salt exposure, significantly induced apoptosis and inflammatory responses in renal tubular cells. Taken together, recurrent exposure to LPS elicits the activation of trained immunity, consequently augmenting inflammatory response of monocytes/macrophages in the involved kidneys. The high-salt diet exacerbates this phenomenon, attributable at least in part to the overactivation of the mTORC1 pathway. This research emphasizes the importance of dietary modulation and targeted immunological interventions in slowing CKD progression, providing new insights into mTORC1-mediated pathophysiological mechanisms and potential management strategies for CKD.
Collapse
Affiliation(s)
- Huihui Chen
- Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Jie Song
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Li Zeng
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Jie Zha
- Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Jiefu Zhu
- Department of Transplantation, Renmin Hospital of Wuhan University, Wuhan, China
| | - Anqun Chen
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Yu Liu
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Guochun Chen
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China.
| |
Collapse
|
2
|
Gao N, Gao CL, Chen S, Wang MX, Li XW. Design and Synthesis of Marine Polybrominated Diphenyl Ether Derivatives as Potential Anti-Inflammatory Agents. Chem Biodivers 2024; 21:e202401179. [PMID: 38808458 DOI: 10.1002/cbdv.202401179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 05/30/2024]
Abstract
Natural polybrominated diphenyl ethers are generally isolated from sponges and possess a broad range of biological activities. Through screening of our marine natural product library, we discovered that polybrominated diphenyl ethers 5 and 6 exhibit considerable anti-inflammatory activity. In order to expand our repertoire of derivatives for further biological activity studies, we designed and synthesized a series of 5-related polybrominated diphenyl ethers. Importantly, compound 5a showed comparable anti-inflammatory activity while much lower cytotoxicity on lipopolysaccharide (LPS)-induced RAW264.7 cells. Additionally, western blotting analysis showed that 5a reduced the expression of phosphorylated extracellular signal-regulated kinase (p-ERK). Besides, molecular docking experiments were conducted to predict and elucidate the potential mechanisms underlying the varying anti-inflammatory activities exhibited by compounds 5a, 5, and 6.
Collapse
Affiliation(s)
- Ning Gao
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 210023, Nanjing, P. R. China
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, P. R. China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
| | - Cheng-Long Gao
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, P. R. China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
| | - Sha Chen
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
| | - Meng-Xue Wang
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
| | - Xu-Wen Li
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 210023, Nanjing, P. R. China
- State Key Laboratory of Chemical Biology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 201203, Shanghai, P. R. China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, 264117, Yantai, Shandong, P. R. China
| |
Collapse
|
3
|
Vanmeerbeek I, Naulaerts S, Sprooten J, Laureano RS, Govaerts J, Trotta R, Pretto S, Zhao S, Cafarello ST, Verelst J, Jacquemyn M, Pociupany M, Boon L, Schlenner SM, Tejpar S, Daelemans D, Mazzone M, Garg AD. Targeting conserved TIM3 +VISTA + tumor-associated macrophages overcomes resistance to cancer immunotherapy. SCIENCE ADVANCES 2024; 10:eadm8660. [PMID: 39028818 PMCID: PMC11259173 DOI: 10.1126/sciadv.adm8660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 06/14/2024] [Indexed: 07/21/2024]
Abstract
Despite the success of immunotherapy, overcoming immunoresistance in cancer remains challenging. We identified a unique niche of tumor-associated macrophages (TAMs), coexpressing T cell immunoglobulin and mucin domain-containing 3 (TIM3) and V-domain immunoglobulin suppressor of T cell activation (VISTA), that dominated human and mouse tumors resistant to most of the currently used immunotherapies. TIM3+VISTA+ TAMs were sustained by IL-4-enriching tumors with low (neo)antigenic and T cell-depleted features. TIM3+VISTA+ TAMs showed an anti-inflammatory and protumorigenic phenotype coupled with inability to sense type I interferon (IFN). This was established with cancer cells succumbing to immunogenic cell death (ICD). Dying cancer cells not only triggered autocrine type I IFNs but also exposed HMGB1/VISTA that engaged TIM3/VISTA on TAMs to suppress paracrine IFN-responses. Accordingly, TIM3/VISTA blockade synergized with paclitaxel, an ICD-inducing chemotherapy, to repolarize TIM3+VISTA+ TAMs to proinflammatory TAMs that killed cancer cells via tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) signaling. We propose targeting TIM3+VISTA+ TAMs to overcome immunoresistant tumors.
Collapse
Affiliation(s)
- Isaure Vanmeerbeek
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Stefan Naulaerts
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Jenny Sprooten
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Raquel S. Laureano
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Jannes Govaerts
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Rosa Trotta
- Laboratory of Tumour Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Tumour Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Samantha Pretto
- Laboratory of Tumour Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Tumour Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Shikang Zhao
- Laboratory of Tumour Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Tumour Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Sarah Trusso Cafarello
- Laboratory of Tumour Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Tumour Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Joren Verelst
- Laboratory of Tumour Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Tumour Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Maarten Jacquemyn
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, KU Leuven, Rega Institute, Leuven, Belgium
| | - Martyna Pociupany
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | | | - Susan M. Schlenner
- Laboratory of Adaptive Immunity, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Sabine Tejpar
- Laboratory for Molecular Digestive Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Dirk Daelemans
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, KU Leuven, Rega Institute, Leuven, Belgium
| | - Massimiliano Mazzone
- Laboratory of Tumour Inflammation and Angiogenesis, VIB Center for Cancer Biology, Leuven, Belgium
- Laboratory of Tumour Inflammation and Angiogenesis, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Abhishek D. Garg
- Laboratory of Cell Stress and Immunity, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| |
Collapse
|
4
|
Lu MJ, Zhang JQ, Nie ZY, Yan TH, Cao YB, Zhang LC, Li L. Monocyte/macrophage-mediated venous thrombus resolution. Front Immunol 2024; 15:1429523. [PMID: 39100675 PMCID: PMC11297357 DOI: 10.3389/fimmu.2024.1429523] [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: 05/08/2024] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Venous thromboembolism (VTE) poses a notable risk of morbidity and mortality. The natural resolution of the venous thrombus might be a potential alternative treatment strategy for VTE. Monocytes/macrophages merge as pivotal cell types in the gradual resolution of the thrombus. In this review, the vital role of macrophages in inducing inflammatory response, augmenting neovascularization, and facilitating the degradation of fibrin and collagen during thrombus resolution was described. The two phenotypes of macrophages involved in thrombus resolution and their dual functions were discussed. Macrophages expressing various factors, including cytokines and their receptors, adhesion molecules, chemokine receptors, vascular endothelial growth factor receptors, profibrinolytic- or antifibrinolytic-related enzymes, and other elements, are explored for their potential to promote or attenuate thrombus resolution. Furthermore, this review provides a comprehensive summary of new and promising therapeutic candidate drugs associated with monocytes/macrophages that have been demonstrated to promote or impair thrombus resolution. However, further clinical trials are essential to validate their efficacy in VTE therapy.
Collapse
Affiliation(s)
- Meng-Jiao Lu
- Institute of Vascular Disease, Shanghai TCM- Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Physiology and Pharmacology, China Pharmaceutic University, Nanjing, China
| | - Jia-Qi Zhang
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhou-Yu Nie
- Institute of Vascular Disease, Shanghai TCM- Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tian-Hua Yan
- Department of Physiology and Pharmacology, China Pharmaceutic University, Nanjing, China
| | - Yong-Bing Cao
- Institute of Vascular Disease, Shanghai TCM- Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li-Chao Zhang
- Department of Pharmacy, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ling Li
- Institute of Vascular Disease, Shanghai TCM- Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
5
|
Wu J, Wu Y, Tang H, Li W, Zhao Z, Shi X, Jiang H, Yu L, Deng H. Self-Adapting Biomass Hydrogel Embodied with miRNA Immunoregulation and Long-Term Bacterial Eradiation for Synergistic Chronic Wound Therapy. ACS NANO 2024; 18:18379-18392. [PMID: 38953692 DOI: 10.1021/acsnano.4c02736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Chronic wound rescue is critical for diabetic patients but is challenging to achieve with a specific and long-term strategy. The prolonged bacterial inflammation is particularly prevalent in hyperglycemia-induced wounds, usually leading to severe tissue damage. Such a trend could further suffer from an environmental suitability provided by macrophages for persisting Staphylococcus aureus (S. aureus) and even deteriorate by their mutual reinforcement. However, the strategy of both suppressing bacteria growth and immunoreprogramming the inflammatory type of macrophages to break their vicious harm to wound healing is still lacking. Here, a self-adapting biomass carboxymethyl chitosan (CMC) hydrogel comprising immunomodulatory nanoparticles is reported to achieve Gram-negative/Gram-positive bacteria elimination and anti-inflammatory cytokines induction to ameliorate the cutaneous microenvironment. Mechanistically, antibacterial peptides and CMCs synergistically result in a long-term inhibition against methicillin-resistant S. aureus (MRSA) over a period of 7 days, and miR-301a reprograms the M2 macrophage via the PTEN/PI3Kγ/mTOR signaling pathway, consequently mitigating inflammation and promoting angiogenesis for diabetic wound healing in rats. In this vein, immunoregulatory hydrogel is a promising all-biomass dressing ensuring biocompatibility, providing a perspective to regenerate cutaneous damaged tissue, and repairing chronic wounds on skin.
Collapse
Affiliation(s)
- Jun Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Key Laboratory of Autonomic Nervous System Modulation, Cardiac Autonomic Nervous System Research Center of Wuhan University, Taikang Center for Life and Medical Sciences, Wuhan University, Cardiovascular Research Institute, Wuhan University, Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Yang Wu
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Heng Tang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers, Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Wei Li
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Ze Zhao
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Xiaowen Shi
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Key Laboratory of Autonomic Nervous System Modulation, Cardiac Autonomic Nervous System Research Center of Wuhan University, Taikang Center for Life and Medical Sciences, Wuhan University, Cardiovascular Research Institute, Wuhan University, Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Lilei Yu
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Key Laboratory of Autonomic Nervous System Modulation, Cardiac Autonomic Nervous System Research Center of Wuhan University, Taikang Center for Life and Medical Sciences, Wuhan University, Cardiovascular Research Institute, Wuhan University, Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Hongbing Deng
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| |
Collapse
|
6
|
Wei Y, Guo H, Chen S, Tang XX. Regulation of macrophage activation by lactylation in lung disease. Front Immunol 2024; 15:1427739. [PMID: 39026681 PMCID: PMC11254698 DOI: 10.3389/fimmu.2024.1427739] [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: 05/04/2024] [Accepted: 06/24/2024] [Indexed: 07/20/2024] Open
Abstract
Lactylation is a process where lactate, a cellular metabolism byproduct, is added to proteins, altering their functions. In the realm of macrophage activation, lactylation impacts inflammatory response and immune regulation. Understanding the effects of lactylation on macrophage activation is vital in lung diseases, as abnormal activation and function are pivotal in conditions like pneumonia, pulmonary fibrosis, COPD, and lung cancer. This review explores the concept of lactylation, its regulation of macrophage activation, and recent research progress in lung diseases. It offers new insights into lung disease pathogenesis and potential therapeutic targets.
Collapse
Affiliation(s)
- Yungeng Wei
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hua Guo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shixing Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiao Xiao Tang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Bio-island, Guangzhou, China
| |
Collapse
|
7
|
Xu R, Vujić N, Bianco V, Reinisch I, Kratky D, Krstic J, Prokesch A. Lipid-associated macrophages between aggravation and alleviation of metabolic diseases. Trends Endocrinol Metab 2024:S1043-2760(24)00092-4. [PMID: 38705759 DOI: 10.1016/j.tem.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 05/07/2024]
Abstract
Lipid-associated macrophages (LAMs) are phagocytic cells with lipid-handling capacity identified in various metabolic derangements. During disease development, they locate to atherosclerotic plaques, adipose tissue (AT) of individuals with obesity, liver lesions in steatosis and steatohepatitis, and the intestinal lamina propria. LAMs can also emerge in the metabolically demanding microenvironment of certain tumors. In this review, we discuss major questions regarding LAM recruitment, differentiation, and self-renewal, and, ultimately, their acute and chronic functional impact on the development of metabolic diseases. Further studies need to clarify whether and under which circumstances LAMs drive disease progression or resolution and how their phenotype can be modulated to ameliorate metabolic disorders.
Collapse
Affiliation(s)
- Ruonan Xu
- Gottfried Schatz Research Center for Cell Signaling, Metabolism, and Aging, Division of Cell Biology, Histology, and Embryology, Medical University of Graz, Graz, Austria
| | - Nemanja Vujić
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Valentina Bianco
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Isabel Reinisch
- Institute of Food Nutrition and Health, Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Schwerzenbach, Switzerland
| | - Dagmar Kratky
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria
| | - Jelena Krstic
- Gottfried Schatz Research Center for Cell Signaling, Metabolism, and Aging, Division of Cell Biology, Histology, and Embryology, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria
| | - Andreas Prokesch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism, and Aging, Division of Cell Biology, Histology, and Embryology, Medical University of Graz, Graz, Austria; BioTechMed-Graz, Graz, Austria.
| |
Collapse
|
8
|
Wong IG, Stark J, Ya V, Moye AL, Vazquez AB, Dang SM, Shehaj A, Rouhani MJ, Bronson R, Janes SM, Rowbotham SP, Paschini M, Franklin RA, Kim CF. Airway injury induces alveolar epithelial and mesenchymal responses mediated by macrophages. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.02.587596. [PMID: 38617297 PMCID: PMC11014629 DOI: 10.1101/2024.04.02.587596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Acute injury in the airways or the lung activates local progenitors and stimulates changes in cell-cell interactions to restore homeostasis, but it is not appreciated how more distant niches are impacted. We utilized mouse models of airway-specific epithelial injury to examine secondary tissue-wide alveolar, immune, and mesenchymal responses. Single-cell transcriptomics and in vivo validation revealed transient, tissue-wide proliferation of alveolar type 2 (AT2) progenitor cells after club cell-specific ablation. The AT2 cell proliferative response was reliant on alveolar macrophages (AMs) via upregulation of Spp1 which encodes the secreted factor Osteopontin. A previously uncharacterized mesenchymal population we termed Mesenchymal Airway/Adventitial Niche Cell 2 (MANC2) also exhibited dynamic changes in abundance and a pro-fibrotic transcriptional signature after club cell ablation in an AM-dependent manner. Overall, these results demonstrate that acute airway damage can trigger distal lung responses including altered cell-cell interactions that may contribute to potential vulnerabilities for further dysregulation and disease.
Collapse
|
9
|
Liu Y, Tang X, Yuan H, Gao R. Naringin Inhibits Macrophage Foam Cell Formation by Regulating Lipid Homeostasis and Metabolic Phenotype. Nutrients 2024; 16:1321. [PMID: 38732567 PMCID: PMC11085135 DOI: 10.3390/nu16091321] [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: 03/13/2024] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Imbalances in lipid uptake and efflux and inflammation are major contributors to foam cell formation, which is considered a therapeutic target to protect against atherosclerosis. Naringin, a citrus flavonoid abundant in citrus fruits, has been reported to exert an antiatherogenic function, but its pharmacological mechanism is unclear. Naringin treatment effectively inhibits foam cell formation in THP-1 and RAW264.7 macrophages. In this study, mechanically, naringin maintained lipid homeostasis within macrophages through downregulation of the key genes for lipid uptake (MSR1 and CD36) and the upregulation of ABCA1, ABCG1 and SR-B1, which are responsible for cholesterol efflux. Meanwhile, naringin significantly decreased the cholesterol synthesis-related genes and increased the genes involved in cholesterol metabolism. Subsequently, the results showed that ox-LDL-induced macrophage inflammatory responses were inhibited by naringin by reducing the proinflammatory cytokines IL-1β, IL-6 and TNF-α, and increasing the anti- inflammatory cytokine IL-10, which was further verified by the downregulation of pro-inflammatory and chemokine-related genes. Additionally, we found that naringin reprogrammed the metabolic phenotypes of macrophages by suppressing glycolysis and promoting lipid oxidation metabolism to restore macrophage phenotypes and functions. These results suggest that naringin is a potential drug for the treatment of AS as it inhibits macrophage foam cell formation by regulating metabolic phenotypes and inflammation.
Collapse
Affiliation(s)
- Yan Liu
- Department of Pharmacy, Air Force Medical Center, PLA, Beijing 100142, China; (Y.L.); (X.T.); (H.Y.)
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiaohan Tang
- Department of Pharmacy, Air Force Medical Center, PLA, Beijing 100142, China; (Y.L.); (X.T.); (H.Y.)
| | - Hailong Yuan
- Department of Pharmacy, Air Force Medical Center, PLA, Beijing 100142, China; (Y.L.); (X.T.); (H.Y.)
| | - Rong Gao
- Department of Pharmacy, Air Force Medical Center, PLA, Beijing 100142, China; (Y.L.); (X.T.); (H.Y.)
| |
Collapse
|
10
|
Arya SB, Collie SP, Xu Y, Fernandez M, Sexton JZ, Mosalaganti S, Coulombe PA, Parent CA. Neutrophils secrete exosome-associated DNA to resolve sterile acute inflammation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.21.590456. [PMID: 38712240 PMCID: PMC11071349 DOI: 10.1101/2024.04.21.590456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Acute inflammation, characterized by a rapid influx of neutrophils, is a protective response that can lead to chronic inflammatory diseases when left unresolved. Secretion of LTB 4 -containing exosomes is required for effective neutrophil infiltration during inflammation. In this study, we show that neutrophils release nuclear DNA in a non-lytic, rapid, and repetitive manner, via a mechanism distinct from suicidal NET release and cell death. The packaging of nuclear DNA occurs in the lumen of nuclear envelope (NE)-derived multivesicular bodies (MVBs) that harbor the LTB 4 synthesizing machinery and is mediated by the lamin B receptor (LBR) and chromatin decondensation. Disruption of secreted exosome-associated DNA (SEAD) in a model of sterile inflammation in mouse skin amplifies and prolongs the presence of neutrophils, impeding the onset of resolution. Together, these findings advance our understanding of neutrophil functions during inflammation and the physiological significance of NETs, with implications for novel treatments for inflammatory disorders.
Collapse
|
11
|
Zhang FF, Hao Y, Zhang KX, Yang JJ, Zhao ZQ, Liu HJ, Li JT. Interplay between mesenchymal stem cells and macrophages: Promoting bone tissue repair. World J Stem Cells 2024; 16:375-388. [PMID: 38690513 PMCID: PMC11056637 DOI: 10.4252/wjsc.v16.i4.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/14/2024] [Accepted: 03/19/2024] [Indexed: 04/25/2024] Open
Abstract
The repair of bone tissue damage is a complex process that is well-orchestrated in time and space, a focus and difficulty in orthopedic treatment. In recent years, the success of mesenchymal stem cells (MSCs)-mediated bone repair in clinical trials of large-area bone defects and bone necrosis has made it a candidate in bone tissue repair engineering and regenerative medicine. MSCs are closely related to macrophages. On one hand, MSCs regulate the immune regulatory function by influencing macrophages proliferation, infiltration, and phenotype polarization, while also affecting the osteoclasts differentiation of macrophages. On the other hand, macrophages activate MSCs and mediate the multilineage differentiation of MSCs by regulating the immune microenvironment. The cross-talk between MSCs and macrophages plays a crucial role in regulating the immune system and in promoting tissue regeneration. Making full use of the relationship between MSCs and macrophages will enhance the efficacy of MSCs therapy in bone tissue repair, and will also provide a reference for further application of MSCs in other diseases.
Collapse
Affiliation(s)
- Fei-Fan Zhang
- Molecular Biology Lab, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, Henan Province, China
- Graduate School, Hunan University of Chinese Medicine, Changsha 410208, Hunan Province, China
| | - Yang Hao
- Molecular Biology Lab, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, Henan Province, China
- Graduate School, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
| | - Kuai-Xiang Zhang
- Molecular Biology Lab, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, Henan Province, China
- Graduate School, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China
| | - Jiang-Jia Yang
- Molecular Biology Lab, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, Henan Province, China
- Graduate School, Hunan University of Chinese Medicine, Changsha 410208, Hunan Province, China
| | - Zhi-Qiang Zhao
- Molecular Biology Lab, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, Henan Province, China
| | - Hong-Jian Liu
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan Province, China
| | - Ji-Tian Li
- Molecular Biology Lab, Henan Luoyang Orthopedic Hospital (Henan Provincial Orthopedic Hospital), Zhengzhou 450000, Henan Province, China
- Graduate School, Hunan University of Chinese Medicine, Changsha 410208, Hunan Province, China
- Graduate School, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China.
| |
Collapse
|
12
|
Guo Y, Che Y, Zhang X, Ren Z, Chen Y, Guo L, Mao L, Wei R, Gao X, Zhang T, Wang L, Guo W. Cannabidiol protects against acute aortic dissection by inhibiting macrophage infiltration and PMAIP1-induced vascular smooth muscle cell apoptosis. J Mol Cell Cardiol 2024; 189:38-51. [PMID: 38387723 DOI: 10.1016/j.yjmcc.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/03/2024] [Accepted: 02/18/2024] [Indexed: 02/24/2024]
Abstract
Acute aortic dissection (AAD) progresses rapidly and is associated with high mortality; therefore, there remains an urgent need for pharmacological agents that can protect against AAD. Herein, we examined the therapeutic effects of cannabidiol (CBD) in AAD by establishing a suitable mouse model. In addition, we performed human AAD single-cell RNA sequencing and mouse AAD bulk RNA sequencing to elucidate the potential underlying mechanism of CBD. Pathological assays and in vitro studies were performed to verify the results of the bioinformatic analysis and explore the pharmacological function of CBD. In a β-aminopropionitrile (BAPN)-induced AAD mouse model, CBD reduced AAD-associated morbidity and mortality, alleviated abnormal enlargement of the ascending aorta and aortic arch, and suppressed macrophage infiltration and vascular smooth muscle cell (VSMC) apoptosis. Bioinformatic analysis revealed that the pro-apoptotic gene PMAIP1 was highly expressed in human and mouse AAD samples, and CBD could inhibit Pmaip1 expression in AAD mice. Using human aortic VSMCs (HAVSMCs) co-cultured with M1 macrophages, we revealed that CBD alleviated HAVSMCs mitochondrial-dependent apoptosis by suppressing the BAPN-induced overexpression of PMAIP1 in M1 macrophages. PMAIP1 potentially mediates HAVSMCs apoptosis by regulating Bax and Bcl2 expression. Accordingly, CBD reduced AAD-associated morbidity and mortality and mitigated the progression of AAD in a mouse model. The CBD-induced effects were potentially mediated by suppressing macrophage infiltration and PMAIP1 (primarily expressed in macrophages)-induced VSMC apoptosis. Our findings offer novel insights into M1 macrophages and HAVSMCs interaction during AAD progression, highlighting the potential of CBD as a therapeutic candidate for AAD treatment.
Collapse
Affiliation(s)
- Yilong Guo
- Medical School of Chinese PLA, Beijing 100853, China; Department of Vascular and Endovascular Surgery, The First Medical Centre of Chinese PLA General Hospital, Beijing 100853, China
| | - Yang Che
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Xuelin Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Zongna Ren
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Yinan Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China; Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen 518057, China
| | - Liliang Guo
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Lin Mao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Ren Wei
- Department of Vascular and Endovascular Surgery, The First Medical Centre of Chinese PLA General Hospital, Beijing 100853, China
| | - Xiang Gao
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Tao Zhang
- Vascular Surgery Department, Peking University People's Hospital, Beijing 100044, China
| | - Li Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China; Key Laboratory of Application of Pluripotent Stem Cells in Heart Regeneration, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Wei Guo
- Medical School of Chinese PLA, Beijing 100853, China; Department of Vascular and Endovascular Surgery, The First Medical Centre of Chinese PLA General Hospital, Beijing 100853, China.
| |
Collapse
|
13
|
Yuan Z, Jiang D, Yang M, Tao J, Hu X, Yang X, Zeng Y. Emerging Roles of Macrophage Polarization in Osteoarthritis: Mechanisms and Therapeutic Strategies. Orthop Surg 2024; 16:532-550. [PMID: 38296798 PMCID: PMC10925521 DOI: 10.1111/os.13993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 02/02/2024] Open
Abstract
Osteoarthritis (OA) is the most common chronic degenerative joint disease in middle-aged and elderly people, characterized by joint pain and dysfunction. Macrophages are key players in OA pathology, and their activation state has been studied extensively. Various studies have suggested that macrophages might respond to stimuli in their microenvironment by changing their phenotypes to pro-inflammatory or anti-inflammatory phenotypes, which is called macrophage polarization. Macrophages accumulate and become polarized (M1 or M2) in many tissues, such as synovium, adipose tissue, bone marrow, and bone mesenchymal tissues in joints, while resident macrophages as well as other stromal cells, including fibroblasts, chondrocytes, and osteoblasts, form the joint and function as an integrated unit. In this study, we focus exclusively on synovial macrophages, adipose tissue macrophages, and osteoclasts, to investigate their roles in the development of OA. We review recent key findings related to macrophage polarization and OA, including pathogenesis, molecular pathways, and therapeutics. We summarize several signaling pathways in macrophage reprogramming related to OA, including NF-κB, MAPK, TGF-β, JAK/STAT, PI3K/Akt/mTOR, and NLRP3. Of note, despite the increasing availability of treatments for osteoarthritis, like intra-articular injections, surgery, and cellular therapy, the demand for more effective clinical therapies has remained steady. Therefore, we also describe the current prospective therapeutic methods that deem macrophage polarization to be a therapeutic target, including physical stimulus, chemical compounds, and biological molecules, to enhance cartilage repair and alleviate the progression of OA.
Collapse
Affiliation(s)
- Zimu Yuan
- West China Medical SchoolSichuan UniversityChengduChina
- West China HospitalSichuan UniversityChengduChina
| | - Decheng Jiang
- West China Medical SchoolSichuan UniversityChengduChina
- West China HospitalSichuan UniversityChengduChina
| | - Mengzhu Yang
- West China Medical SchoolSichuan UniversityChengduChina
- West China HospitalSichuan UniversityChengduChina
| | - Jie Tao
- West China Medical SchoolSichuan UniversityChengduChina
- West China HospitalSichuan UniversityChengduChina
| | - Xin Hu
- Orthopedic Research Institute, Department of OrthopedicsWest China Hospital, Sichuan UniversityChengduChina
| | - Xiao Yang
- National Engineering Research Center for BiomaterialsSichuan UniversityChengduChina
| | - Yi Zeng
- Orthopedic Research Institute, Department of OrthopedicsWest China Hospital, Sichuan UniversityChengduChina
| |
Collapse
|
14
|
Hoagland DA, Rodríguez-Morales P, Mann AO, Yu S, Lai A, Vazquez AB, Pope SD, Lim J, Li S, Zhang X, Li MO, Medzhitov R, Franklin RA. Macrophages control pathological interferon responses during viral respiratory infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.16.572019. [PMID: 38168230 PMCID: PMC10760173 DOI: 10.1101/2023.12.16.572019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Antiviral immune mediators, including interferons and their downstream effectors, are critical for host defense yet can become detrimental when uncontrolled. Here, we identify a macrophage-mediated anti-inflammatory mechanism that limits type I interferon (IFN-I) responses. Specifically, we found that cellular stress and pathogen recognition induce Oncostatin M (OSM) production by macrophages. OSM-deficient mice succumbed to challenge with influenza or a viral mimic due to heightened IFN-I activation. Macrophage-derived OSM restricted excessive IFN-I production by lung epithelial cells following viral stimulation. Furthermore, reconstitution of OSM in the respiratory tract was sufficient to protect mice lacking macrophage-derived OSM against morbidity, indicating the importance of local OSM production. This work reveals a host strategy to dampen inflammation in the lung through the negative regulation of IFN-I by macrophages.
Collapse
Affiliation(s)
| | | | | | - Shuang Yu
- Department of Immunobiology, Yale University School of Medicine; New Haven, CT, USA
| | - Alicia Lai
- Department of Immunology, Harvard Medical School; Boston, MA, USA
| | | | - Scott D. Pope
- Department of Immunobiology, Yale University School of Medicine; New Haven, CT, USA
| | - Jaechul Lim
- Department of Immunobiology, Yale University School of Medicine; New Haven, CT, USA
- Current affiliation: Laboratory of Immunology, College of Veterinary Medicine, Seoul National University; Seoul, Republic of Korea
| | - Shun Li
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center; New York, NY, USA
| | - Xian Zhang
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center; New York, NY, USA
| | - Ming O. Li
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center; New York, NY, USA
| | - Ruslan Medzhitov
- Department of Immunobiology, Yale University School of Medicine; New Haven, CT, USA
- Howard Hughes Medical Institute; New Haven, CT, USA
| | - Ruth A. Franklin
- Department of Immunology, Harvard Medical School; Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University; Cambridge, MA, USA
| |
Collapse
|