1
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Pokhreal D, Crestani B, Helou DG. Macrophage Implication in IPF: Updates on Immune, Epigenetic, and Metabolic Pathways. Cells 2023; 12:2193. [PMID: 37681924 PMCID: PMC10486697 DOI: 10.3390/cells12172193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a lethal interstitial lung disease of unknown etiology with a poor prognosis. It is a chronic and progressive disease that has a distinct radiological and pathological pattern from common interstitial pneumonia. The use of immunosuppressive medication was shown to be completely ineffective in clinical trials, resulting in years of neglect of the immune component. However, recent developments in fundamental and translational science demonstrate that immune cells play a significant regulatory role in IPF, and macrophages appear to be among the most crucial. These highly plastic cells generate multiple growth factors and mediators that highly affect the initiation and progression of IPF. In this review, we will provide an update on the role of macrophages in IPF through a systemic discussion of various regulatory mechanisms involving immune receptors, cytokines, metabolism, and epigenetics.
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Affiliation(s)
- Deepak Pokhreal
- Physiopathologie et Epidémiologie des Maladies Respiratoires, Inserm U1152, UFR de Médecine, Université Paris Cité, 75018 Paris, France
| | - Bruno Crestani
- Physiopathologie et Epidémiologie des Maladies Respiratoires, Inserm U1152, UFR de Médecine, Université Paris Cité, 75018 Paris, France
- FHU APOLLO, Service de Pneumologie A, Hôpital Bichat, Assistance Publique des Hôpitaux de Paris, 75877 Paris, France
| | - Doumet Georges Helou
- Physiopathologie et Epidémiologie des Maladies Respiratoires, Inserm U1152, UFR de Médecine, Université Paris Cité, 75018 Paris, France
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2
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Zhao Y, Qu Y, Duan M, Hao C, Yao W. Dynamics of the inhibitory immune checkpoint TIM-3 in mouse pulmonary phagocytes after silica exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 261:115087. [PMID: 37285680 DOI: 10.1016/j.ecoenv.2023.115087] [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: 03/07/2023] [Revised: 05/06/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
Long-term inhalation of silica particles in the workplace causes silicosis, which is incurable and seriously endangers the health of workers. It is believed that silicosis is caused by an imbalance of the pulmonary immune microenvironment, in which pulmonary phagocytes play a crucial role. As an emerging immunomodulatory factor, it is unclear whether T cell immunoglobulin and mucin domain-containing protein 3 (TIM3) participate in silicosis by modulating pulmonary phagocytes function. The purpose of this study was to investigate the dynamic changes of the TIM-3 in pulmonary macrophages, dendritic cells (DCs), and monocytes during the development of silicosis in mice. The plasma levels of soluble TIM-3 in silicosis patients were also examined. Flow cytometry was used to identify alveolar macrophages (AMs), interstitial macrophages (IMs), CD11b+ DC, CD103+ DC, Ly6C+, and Ly6C- monocytes in mouse lung tissues, and further analyses were conducted on the expression of TIM-3. Results showed that soluble TIM-3 was significantly elevated in plasma of silicosis patients, and the level of which was higher in stage II and III patients than that in stage I. In silicosis mice, the protein and mRNA levels of TIM-3 and Galectin9 were significantly upregulated in lung tissues. Specific to pulmonary phagocytes, silica exposure affected TIM-3 expression in a cell-specific and dynamic manner. In macrophages, TIM-3 expression upregulated in AM after 28 days and 56 days of silica instillation, while the expression of TIM-3 in IM decreased at all observation time points. In DCs, silica exposure only caused a decrease of TIM-3 expression in CD11b+ DCs. In monocytes, TIM-3 dynamics in Ly6C+ and Ly6C- monocytes were generally consistent during silicosis development, which significant decrease after 7 and 28 days of silica exposure. In conclusion, TIM-3 may mediate the development of silicosis by regulating pulmonary phagocytes.
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Affiliation(s)
- Youliang Zhao
- Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Yaqian Qu
- Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Meixiu Duan
- Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China
| | - Changfu Hao
- Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China.
| | - Wu Yao
- Department of Occupational Health and Occupational Disease, College of Public Health, Zhengzhou University, Zhengzhou, Henan, PR China.
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3
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Cellular and Molecular Mechanisms in Idiopathic Pulmonary Fibrosis. Adv Respir Med 2023; 91:26-48. [PMID: 36825939 PMCID: PMC9952569 DOI: 10.3390/arm91010005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/06/2023] [Accepted: 01/12/2023] [Indexed: 02/04/2023]
Abstract
The respiratory system is a well-organized multicellular organ, and disruption of cellular homeostasis or abnormal tissue repair caused by genetic deficiency and exposure to risk factors lead to life-threatening pulmonary disease including idiopathic pulmonary fibrosis (IPF). Although there is no clear etiology as the name reflected, its pathological progress is closely related to uncoordinated cellular and molecular signals. Here, we review the advances in our understanding of the role of lung tissue cells in IPF pathology including epithelial cells, mesenchymal stem cells, fibroblasts, immune cells, and endothelial cells. These advances summarize the role of various cell components and signaling pathways in the pathogenesis of idiopathic pulmonary fibrosis, which is helpful to further study the pathological mechanism of the disease, provide new opportunities for disease prevention and treatment, and is expected to improve the survival rate and quality of life of patients.
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4
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Zhou Y, Ye S, Yang L, Yin G, Xie Q. Elevated serum levels of soluble T cell immunoglobulin and mucin-containing-molecule-3 in patients with idiopathic inflammatory myopathy. Rheumatology (Oxford) 2022; 62:e111-e113. [PMID: 36063048 DOI: 10.1093/rheumatology/keac510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/27/2022] [Accepted: 08/31/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yueyuan Zhou
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Sheng Ye
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Leiyi Yang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Geng Yin
- Department of General Practice, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qibing Xie
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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5
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Mesenchymal Stem Cell-Derived Extracellular Vesicles as Idiopathic Pulmonary Fibrosis Microenvironment Targeted Delivery. Cells 2022; 11:cells11152322. [PMID: 35954166 PMCID: PMC9367455 DOI: 10.3390/cells11152322] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 02/05/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) affects an increasing number of people globally, yet treatment options remain limited. At present, conventional treatments depending on drug therapy do not show an ideal effect in reversing the lung damage or extending the lives of IPF patients. In recent years, more and more attention has focused on extracellular vesicles (EVs) which show extraordinary therapeutic effects in inflammation, fibrosis disease, and tissue damage repair in many kinds of disease therapy. More importantly, EVs can be modified or used as a drug or cytokine delivery tool, targeting injury sites to enhance treatment efficiency. In light of this, the treatment strategy of mesenchymal stem cell-extracellular vesicles (MSC-EVs) targeting the pulmonary microenvironment for IPF provides a new idea for the treatment of IPF. In this review, we summarized the inflammation, immune dysregulation, and extracellular matrix microenvironment (ECM) disorders in the IPF microenvironment in order to reveal the treatment strategy of MSC-EVs targeting the pulmonary microenvironment for IPF.
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6
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Cell-to-Cell Crosstalk: A New Insight into Pulmonary Hypertension. Rev Physiol Biochem Pharmacol 2022; 184:159-179. [PMID: 35380274 DOI: 10.1007/112_2022_70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Pulmonary hypertension (PH) is a disease with high pulmonary arterial pressure, pulmonary vasoconstriction, pulmonary vascular remodeling, and microthrombosis in complex plexiform lesions, but it has been unclear of the exact mechanism of PH. A new understanding of the pathogenesis of PH is occurred and focused on the role of crosstalk between the cells on pulmonary vessels and pulmonary alveoli. It was found that the crosstalks among the endothelial cells, smooth muscle cells, fibroblasts, pericytes, alveolar epithelial cells, and macrophages play important roles in cell proliferation, migration, inflammation, and so on. Therefore, the heterogeneity of multiple pulmonary blood vessels and alveolar cells and tracking the transmitters of cell communication could be conducive to the further insights into the pathogenesis of PH to discover the potential therapeutic targets for PH.
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7
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Huaux F. Interpreting Immunoregulation in Lung Fibrosis: A New Branch of the Immune Model. Front Immunol 2021; 12:690375. [PMID: 34489937 PMCID: PMC8417606 DOI: 10.3389/fimmu.2021.690375] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/06/2021] [Indexed: 12/24/2022] Open
Abstract
Immunostimulation is recognized as an important contribution in lung fibrosis in some animal models and patient subsets. With this review, we illustrate an additional scenario covering the possible implication of immunoregulation during fibrogenesis. Available animal and human data indicate that pulmonary fibrosis also includes diverse and discrete immunoregulating populations comprising regulatory lymphocytes (T and B regs) and myeloid cells (immunosuppressive macrophages and myeloid-derived suppressive cells; MDSC). They are initially recruited to limit the establishment of deleterious inflammation but participate in the development of lung fibrosis by producing immunoregulatory mediators (mainly TGF-β1 and IL-10) that directly or indirectly stimulate fibroblasts and matrix protein deposition. The existence of this silent immunoregulatory environment sustains an alternative mechanism of fibrosis that explains why in some conditions neither pro-inflammatory cytokine deficiency nor steroid and immunosuppressive therapies limit lung fibrosis. Therefore, the persistent presence of immunoregulation is an important parameter to consider for refining therapeutical strategies in lung fibrotic disorders under non-immunostimulatory conditions.
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Affiliation(s)
- François Huaux
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
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8
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Yan M, Zhang Y, Chang S. Chitosan Nanoparticles Loaded with TGF- β1 Inhibit Cervical Cancer Cell Progression Through Down-Regulation of MicroRNA-155 and Activation of Tim-3 Pathway. J Biomed Nanotechnol 2021; 17:1850-1857. [PMID: 34688330 DOI: 10.1166/jbn.2021.3146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Chemically modified chitosan nanoparticles (NPs) are capable of releasing their own substances to target cells or tissues, improving microenvironment and promoting wound healing. This study aimed to explore the molecular mechanism underlying chitosan NPs loaded with TGF-β1 participating in cervical cancer (CC) progression. TGF-β1-loaded-chitosan NPs were prepared and particle size distribution, zeta potential and encapsulation efficiency of NPs were determined. MTT assay assessed the toxicity of NPs to macrophages. CC cells were co-cultured with TGF-β1-loaded chitosan NPs (experimental group) or pure chitosan NPs (control group) and cells were cultured alone to produce control group. After treatment, flow cytometry was conducted to detect apoptosis and cycle. Cancer cell migration was evaluated by Transwell assay, and miR-155 and Tim-3 expression was determined. At a ratio of 2:1 chitosan and TGF-β1, the particle size was102.65±11.98 nm, which was smallest, with high encapsulation rate of 81.26%, and low potential of 1.46±1.71. NP toxicity increased as concentration rose and relative cell proliferation rate was >80%, indicated as non-toxic. CC tissues had positive expression of CD163 and TGF-β1 (95%) (p < 0.05). Treatment with TGF-β1-loaded chitosan NPs induced increased apoptosis rate of 9.13±2.15%, reduced migration (67.65±9.91) and invaded cells (19.98±3.41), causing cell accumulation in the S phase when compared to the blank and control groups (p < 0.05). Besides, experimental group exhibited lower expression of miR-155 (0.39±0.59) and higher expression of Tim-3 (2.87± 0.51), which was higher than the blank group and control group. The optimal concentration ratio for producing TGF-β1-loaded chitosan NPs was 2:1, with less toxicity. The composite NPs suppressed malignant characteristics of CC cells through down-regulation of miR-155 and activation of Tim-3 signal pathway on the surface of macrophages, promoting secretion of macrophage inflammatory factors.
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Affiliation(s)
- Meiling Yan
- Department of Obstetrics and Gynecology, The First People's Hospital of Shangqiu City, 476100, Henan, China
| | - Yali Zhang
- Department of Obstetrics and Gynecology, The First People's Hospital of Shangqiu City, 476100, Henan, China
| | - Shanshan Chang
- Department of Obstetrics and Gynecology, The First People's Hospital of Shangqiu City, 476100, Henan, China
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9
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Du Y, Guo H, Guo L, Miao J, Ren H, Liu K, Ren L, He J, Wang X, Chen J, Li J, Wang Y, Wang J, Huang N. The regulatory effect of acetylation of HMGN2 and H3K27 on pyocyanin-induced autophagy in macrophages by affecting Ulk1 transcription. J Cell Mol Med 2021; 25:7524-7537. [PMID: 34278675 PMCID: PMC8335688 DOI: 10.1111/jcmm.16788] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 06/05/2021] [Accepted: 06/23/2021] [Indexed: 12/19/2022] Open
Abstract
Pyocyanin (PYO) is a major virulence factor secreted by Pseudomonas aeruginosa, and autophagy is a crucial homeostatic mechanism for the interaction between the pathogens and the host. It remains unknown whether PYO leads to autophagy in macrophages by regulating histone acetylation. The high mobility group nucleosomal binding domain 2 (HMGN2) has been reported to regulate the PYO‐induced autophagy and oxidative stress in the epithelial cells; however, the underlying molecular mechanism has not been fully elucidated. In this study, PYO was found to induce autophagy in macrophages, and the mechanism might be correlated with the up‐regulation of HMGN2 acetylation (HMGN2ac) and the down‐regulation of H3K27 acetylation (H3K27ac) by modulation of the activities of acetyltransferases and deacetylases. Moreover, we further demonstrated that the up‐regulated HMGN2ac enhances its recruitment to the Ulk1 promoter, while the down‐regulation of H3K27ac reduces its recruitment to the Ulk1 promoter, thereby promoting or inhibiting the transcription of Ulk1. In conclusion, HMGN2ac and H3K27ac play regulatory roles in the PYO‐induced autophagy in macrophages.
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Affiliation(s)
- Yu Du
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China.,Department of Anesthesiology, Nanchong Central Hospital, Second Clinical Medical Institution, North Sichuan Medical College, Nanchong, China
| | - Hongjun Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lijuan Guo
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Junming Miao
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Hongyu Ren
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Keyun Liu
- Department of Physiology, School of Medicine, Hubei University for Nationalities, Enshi, China
| | - Laibin Ren
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jinchen He
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Xiaoying Wang
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Junli Chen
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jingyu Li
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yi Wang
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ji Wang
- Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Ning Huang
- Department of Pathophysiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
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10
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The hepatic macrophage pool in NASH. Cell Mol Immunol 2021; 18:2059-2060. [PMID: 33976405 DOI: 10.1038/s41423-021-00690-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/08/2022] Open
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11
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Lee JW, Chun W, Lee HJ, Min JH, Kim SM, Seo JY, Ahn KS, Oh SR. The Role of Macrophages in the Development of Acute and Chronic Inflammatory Lung Diseases. Cells 2021; 10:897. [PMID: 33919784 PMCID: PMC8070705 DOI: 10.3390/cells10040897] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/08/2021] [Accepted: 04/13/2021] [Indexed: 12/13/2022] Open
Abstract
Macrophages play an important role in the innate and adaptive immune responses of organ systems, including the lungs, to particles and pathogens. Cumulative results show that macrophages contribute to the development and progression of acute or chronic inflammatory responses through the secretion of inflammatory cytokines/chemokines and the activation of transcription factors in the pathogenesis of inflammatory lung diseases, such as acute lung injury (ALI), acute respiratory distress syndrome (ARDS), ARDS related to COVID-19 (coronavirus disease 2019, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)), allergic asthma, chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF). This review summarizes the functions of macrophages and their associated underlying mechanisms in the development of ALI, ARDS, COVID-19-related ARDS, allergic asthma, COPD, and IPF and briefly introduces the acute and chronic experimental animal models. Thus, this review suggests an effective therapeutic approach that focuses on the regulation of macrophage function in the context of inflammatory lung diseases.
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Affiliation(s)
- Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Cheongju 28116, Korea; (J.-H.M.); (S.-M.K.); (J.-Y.S.)
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 24341, Korea; (W.C.); (H.J.L.)
| | - Hee Jae Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 24341, Korea; (W.C.); (H.J.L.)
| | - Jae-Hong Min
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Cheongju 28116, Korea; (J.-H.M.); (S.-M.K.); (J.-Y.S.)
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea
| | - Seong-Man Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Cheongju 28116, Korea; (J.-H.M.); (S.-M.K.); (J.-Y.S.)
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Ji-Yun Seo
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Cheongju 28116, Korea; (J.-H.M.); (S.-M.K.); (J.-Y.S.)
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Cheongju 28116, Korea; (J.-H.M.); (S.-M.K.); (J.-Y.S.)
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Cheongju 28116, Korea; (J.-H.M.); (S.-M.K.); (J.-Y.S.)
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12
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Liang L, Zhang YM, Shen YW, Song AP, Li WL, Ye LF, Lu X, Wang GC, Peng QL. Aberrantly Expressed Galectin-9 Is Involved in the Immunopathogenesis of Anti-MDA5-Positive Dermatomyositis-Associated Interstitial Lung Disease. Front Cell Dev Biol 2021; 9:628128. [PMID: 33842457 PMCID: PMC8027128 DOI: 10.3389/fcell.2021.628128] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/04/2021] [Indexed: 01/23/2023] Open
Abstract
Background Dermatomyositis (DM) associated rapidly progressive interstitial lung disease (RP-ILD) has high mortality rate and poor prognosis. Galectin-9 (Gal-9) plays multiple functions in immune regulation. We investigated Gal-9 expression in DM patients and its association with DM-ILD. Methods A total of 154 idiopathic inflammatory myopathy patients and 30 healthy controls were enrolled in the study. Cross-sectional and longitudinal studies were used to analyze the association between serum Gal-9 levels and clinical features. Enzyme-linked immunosorbent assay and qRT-PCR were used to examine Gal-9 expression in the sera and isolated peripheral blood mononuclear cells (PBMCs) from DM patients. Immunohistochemistry was performed to analyze the expression of Gal-9 and its ligand (T-cell immunoglobulin mucin (Tim)-3 and CD44) in lung tissues from anti-melanoma differentiation-associated gene 5 (MDA5)-positive patients. The effect of Gal-9 on human lung fibroblasts (MRC-5) was investigated in vitro. Results Serum Gal-9 levels were significantly higher in DM patients than in immune-mediated necrotizing myopathy patients and healthy controls (all p < 0.001). Higher serum Gal-9 levels were observed in anti-MDA5-positive DM patients than in anti-MDA5-negative DM patients [33.8 (21.9–44.7) vs. 16.2 (10.0–26.9) ng/mL, p < 0.001]. Among the anti-MDA5-positive DM patients, serum Gal-9 levels were associated with RP-ILD severity. Serum Gal-9 levels were significantly correlated with disease activity in anti-MDA5-positive DM patients in both cross-sectional and longitudinal studies. PBMCs isolated from anti-MDA5-positive DM patients (3.7 ± 2.3 ng/mL) produced higher levels of Gal-9 than those from immune-mediated necrotizing myopathy patients (1.1 ± 0.3 ng/mL, p = 0.022) and healthy controls (1.4 ± 1.2 ng/mL, p = 0.045). The mRNA levels of Gal-9 were positively correlated with the levels of type-I interferon-inducible genes MX1 (r = 0.659, p = 0.020) and IFIH1 (r = 0.787, p = 0.002) in PBMCs from anti-MDA5-positive DM patients. Immunohistochemistry revealed increased Gal-9 and Tim-3 expression in the lung tissues of patients with DM and RP-ILD. In vitro stimulation with Gal-9 protein increased CCL2 mRNA expression in MRC-5 fibroblasts. Conclusions Among anti-MDA5-positive DM patients, Gal-9 could be a promising biomarker for monitoring disease activity, particularly for RP-ILD severity. Aberrant expression of the Gal-9/Tim-3 axis may be involved in the immunopathogenesis of DM-ILD.
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Affiliation(s)
- Lin Liang
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
| | - Ya-Mei Zhang
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China
| | - Ya-Wen Shen
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China
| | - Ai-Ping Song
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Wen-Li Li
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China
| | - Li-Fang Ye
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China
| | - Xin Lu
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China
| | - Guo-Chun Wang
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
| | - Qing-Lin Peng
- Department of Rheumatology, Beijing Key Lab for Immune-Mediated Inflammatory Diseases, China-Japan Friendship Hospital, Beijing, China
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13
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Zhang ZQ, Tian HT, Liu H, Xie R. The role of macrophage-derived TGF-β1 on SiO 2-induced pulmonary fibrosis: A review. Toxicol Ind Health 2021; 37:240-250. [PMID: 33588701 DOI: 10.1177/0748233721989896] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Silicosis is an occupational fibrotic lung disease caused by inhaling large amounts of crystalline silica dust. Transforming growth factor-β1 (TGF-β1), which is secreted from macrophages, has an important role in the development of this disease. Macrophages can recognize and capture silicon dust, undergo M2 polarization, synthesize TGF-β1 precursors, and secrete them out of the cell where they are activated. Activated TGF-β1 induces cells from different sources, transforming them into myofibroblasts through autocrine and paracrine mechanisms, ultimately causing silicosis. These processes involve complex molecular events, which are not yet fully understood. This systematic summary may further elucidate the location and development of pulmonary fibrosis in the formation of silicosis. In this review, we discussed the proposed cellular and molecular mechanisms of production, secretion, activation of TGF-β1, as well as the mechanisms through which TGF-β1 induces cells from three different sources into myofibroblasts during the pathogenesis of silicosis. This study furthers the medical understanding of the pathogenesis and theoretical basis for diagnosing silicosis, thereby promoting silicosis prevention and treatment.
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Affiliation(s)
- Zhao-Qiang Zhang
- Department of Public Health, 74496Jining Medical University, Jining, China
| | - Hai-Tao Tian
- Department of Public Health, 74496Jining Medical University, Jining, China.,Jining No. 1 People's Hospital, Jining, China
| | - Hu Liu
- Department of Public Health, 74496Jining Medical University, Jining, China
| | - Ruining Xie
- Department of Public Health, 74496Jining Medical University, Jining, China
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14
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Montesi SB, Fisher JH, Martinez FJ, Selman M, Pardo A, Johannson KA. Update in Interstitial Lung Disease 2019. Am J Respir Crit Care Med 2020; 202:500-507. [PMID: 32412784 DOI: 10.1164/rccm.202002-0360up] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Sydney B Montesi
- Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Jolene H Fisher
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | | | - Moisés Selman
- Instituto Nacional de Enfermedades Respiratorias, Ismael Cosío Villegas, Mexico City, Mexico
| | - Annie Pardo
- Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico; and
| | - Kerri A Johannson
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
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15
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Saito M, Mitani A, Ishimori T, Miyashita N, Isago H, Mikami Y, Noguchi S, Tarui M, Nagase T. Active mTOR in Lung Epithelium Promotes Epithelial-Mesenchymal Transition and Enhances Lung Fibrosis. Am J Respir Cell Mol Biol 2020; 62:699-708. [PMID: 32208980 DOI: 10.1165/rcmb.2019-0255oc] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The mTOR pathway is one of the key signal cascades in the pathogenesis of idiopathic pulmonary fibrosis. Previous studies have mainly focused on this pathway in the fibroblasts and/or myofibroblasts, but not in the epithelial cells. In this study, we sought to investigate the role of the mTOR pathway in lung epithelial cells in lung fibrosis. Using Sftpc-mTORSL1+IT transgenic mice, in which active mTOR is conditionally expressed in lung epithelial cells, we assessed the effects of chronically activated mTOR in lung epithelial cells on lung phenotypes as well as bleomycin-induced lung fibrosis. Furthermore, we isolated alveolar epithelial cell type 2 from mice and performed RNA sequencing. Sftpc-mTORSL1+IT transgenic mice had no obvious abnormal findings, but, after bleomycin administration, showed more severe fibrotic changes and lower lung compliance than control mice. RNA sequencing revealed Angptl4 (angiopoietin-like protein 4) as a candidate downstream gene of the mTOR pathway. In vitro studies revealed that ANGPTL4, as well as mTOR, promoted tight junction vulnerability and epithelial-mesenchymal transition. mTOR activation in lung epithelial cells promoted lung fibrosis and the expression of ANGPTL4, a novel downstream target of the mTOR pathway, which could be related to the etiology of fibrosis.
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Affiliation(s)
- Minako Saito
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Akihisa Mitani
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Taro Ishimori
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Naoya Miyashita
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Hideaki Isago
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Yu Mikami
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Satoshi Noguchi
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Megumi Tarui
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, the University of Tokyo, Tokyo, Japan
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16
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Combined anti-fibrotic and anti-inflammatory properties of JAK-inhibitors on macrophages in vitro and in vivo: Perspectives for scleroderma-associated interstitial lung disease. Biochem Pharmacol 2020; 178:114103. [PMID: 32562787 DOI: 10.1016/j.bcp.2020.114103] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022]
Abstract
Janus kinase (JAK) inhibitors (also termed Jakinibs) constitute a family of small drugs that target various isoforms of JAKs (JAK1, JAK2, JAK3 and/or tyrosine kinase 2 (Tyk2)). They exert anti-inflammatory properties linked, in part, to the modulation of the activation state of pro-inflammatory M1 macrophages. The exact impact of JAK inhibitors on a wider spectrum of activation states of macrophages is however still to be determined, especially in the context of disorders involving concomitant activation of pro-inflammatory M1 macrophages and profibrotic M2 macrophages. This is especially the case in autoimmune pulmonary fibrosis like scleroderma-associated interstitial lung disease (ILD), in which M1 and M2 macrophages play a key pathogenic role. In this study, we directly compared the anti-inflammatory and anti-fibrotic effects of three JAK inhibitors (ruxolitinib (JAK2/1 inhibitor); tofacitinib (JAK3/2 inhibitor) and itacitinib (JAK1 inhibitor)) on five different activation states of primary human monocyte-derived macrophages (MDM). These three JAK inhibitors exert anti-inflammatory properties towards macrophages, as demonstrated by the down-expression of key polarization markers (CD86, MHCII, TLR4) and the limited secretion of key pro-inflammatory cytokines (CXCL10, IL-6 and TNFα) in M1 macrophages activated by IFNγ and LPS or by IFNγ alone. We also highlighted that these JAK inhibitors can limit M2a activation of macrophages induced by IL-4 and IL-13, as notably demonstrated by the down-regulation of the M2a associated surface marker CD206 and of the secretion of CCL18. Moreover, these JAK inhibitors reduced the expression of markers such as CXCL13, MARCO and SOCS3 in alternatively activated macrophages induced by IL-10 and dexamethasone (M2c + dex) or IL-10 alone (M2c MDM). For all polarization states, Jakinibs with inhibitory properties over JAK2 had the highest effects, at both 1 μM or 0.1 μM. Based on these in vitro results, we also explored the effects of JAK2/1 inhibition by ruxolitinib in vivo, on mouse macrophages in a model of HOCl-induced ILD, that mimics scleroderma-associated ILD. In this model, we showed that ruxolitinib significantly prevented the upregulation of pro-inflammatory M1 markers (TNFα, CXCL10, NOS2) and pro-fibrotic M2 markers (Arg1 and Chi3L3). These results were associated with an improvement of skin and pulmonary involvement. Overall, our results suggest that the combined anti-inflammatory and anti-fibrotic properties of JAK2/1 inhibitors could be relevant to target lung macrophages in autoimmune and inflammatory pulmonary disorders that have no efficient disease modifying drugs to date.
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17
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Goda C, Balli D, Black M, Milewski D, Le T, Ustiyan V, Ren X, Kalinichenko VV, Kalin TV. Loss of FOXM1 in macrophages promotes pulmonary fibrosis by activating p38 MAPK signaling pathway. PLoS Genet 2020; 16:e1008692. [PMID: 32271749 PMCID: PMC7173935 DOI: 10.1371/journal.pgen.1008692] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 04/21/2020] [Accepted: 02/22/2020] [Indexed: 02/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic disease with high mortality and is refractory to treatment. Pulmonary macrophages can both promote and repress fibrosis, however molecular mechanisms regulating macrophage functions during fibrosis remain poorly understood. FOXM1 is a transcription factor and is not expressed in quiescent lungs. Herein, we show that FOXM1 is highly expressed in pulmonary macrophages within fibrotic lungs of IPF patients and mouse fibrotic lungs. Macrophage-specific deletion of Foxm1 in mice (myFoxm1-/-) exacerbated pulmonary fibrosis. Inactivation of FOXM1 in vivo and in vitro increased p38 MAPK signaling in macrophages and decreased DUSP1, a negative regulator of p38 MAPK pathway. FOXM1 directly activated Dusp1 promoter. Overexpression of DUSP1 in FOXM1-deficient macrophages prevented activation of p38 MAPK pathway. Adoptive transfer of wild-type monocytes to myFoxm1-/- mice alleviated bleomycin-induced fibrosis. Altogether, contrary to known pro-fibrotic activities in lung epithelium and fibroblasts, FOXM1 has anti-fibrotic function in macrophages by regulating p38 MAPK.
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Affiliation(s)
- Chinmayee Goda
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - David Balli
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Markaisa Black
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - David Milewski
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Tien Le
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Vladimir Ustiyan
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
- Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Xiaomeng Ren
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
- Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Vladimir V. Kalinichenko
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
- Center for Lung Regenerative Medicine, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
| | - Tanya V. Kalin
- Division of Pulmonary Biology, the Perinatal Institute of Cincinnati Children’s Hospital Research Foundation, Cincinnati, Ohio, United States of America
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18
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Immune Checkpoints as Promising Targets for the Treatment of Idiopathic Pulmonary Fibrosis? J Clin Med 2019; 8:jcm8101547. [PMID: 31561518 PMCID: PMC6833050 DOI: 10.3390/jcm8101547] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/16/2019] [Accepted: 09/24/2019] [Indexed: 12/21/2022] Open
Abstract
Idiopathic pulmonary fibrosis is a rare, progressive and fatal lung disease which affects approximately 5 million persons worldwide. Although pirfenidone and/or nintedanib treatment improves patients’ wellbeing, the prognosis of IPF remains poor with 5-year mortality rates still ranging from 70 to 80%. The promise of the anti-cancer agent nintedanib in IPF, in combination with the recent notion that IPF shares several pathogenic pathways with cancer, raised hope that immune checkpoint inhibitors, the novel revolutionary anticancer agents, could also be the eagerly awaited ground-breaking and unconventional novel treatment modality limiting IPF-related morbidity/mortality. In the current review, we analyse the available literature on immune checkpoint proteins in IPF to explore whether immune checkpoint inhibition may be as promising in IPF as it is in cancer. We conclude that despite several promising papers showing that inhibiting specific immune checkpoint proteins limits pulmonary fibrosis, overall the data seem to argue against a general role of immune checkpoint inhibition in IPF and suggest that only PD-1/PD-L1 inhibition may be beneficial.
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