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Xiong C, Li B, Song R, Ma Z, Huber SA, Liu W. IFITM3 mediates inflammation induced myocardial injury through JAK2/STAT3 signaling pathway. Mol Immunol 2024; 167:1-15. [PMID: 38306778 DOI: 10.1016/j.molimm.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/11/2023] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
Myocarditis is an inflammation of the heart muscle often associated with viral infections and can lead to dilated cardiomyopathy. Interferon-induced transmembrane protein 3 (IFITM3) is a small endosomal membrane protein with anti-viral activity against multiple viruses and is also implicated in non-infectious diseases such as cancer and Alzheimer's Disease. Since the IFITM3 proteins are expressed both in T cells and in cardiomyocytes, it is reasonable to hypothesize that these molecules could affect myocarditis either through their effect on the autoimmune response or through direct modulation of cardiomyocyte damage. The aim of this study was to investigate the role of IFITM3 in experimental autoimmune myocarditis (EAM)-mediated myocardial injury. Immunization of rats with cardiac myosin results in substantial cardiac inflammation and is associated with increased expression of IFITM3 after 21 days. In vivo IFITM3 shRNA knockdown using the lentivirus transfection method reduced cardiac injury while restoring IFITM3 expression reversed the protective effect of IFITM3 RNA interference. To determine the direct impact of IFITM3, the rat ventricular cell line, H9c2, was treated with palmitic acid which causes apoptosis in these cells. Suppressing IFITM3 expression protects H9c2 cells while overexpressing IFITM3 enhances cell injury. JAK inhibitors reduced IFITM3-mediated myocardial cell injury. In conclusion, IFITM3 may mediate myocardial injury in EAM rats and palmitic acid-induced damage to H9c2 cells through the JAK2/STAT3 pathway.
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Affiliation(s)
- Chunming Xiong
- Department of Cardiology, the fourth affiliated hospital of Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - Bohan Li
- Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - Renxing Song
- Department of Cardiology, the fourth affiliated hospital of Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - Zizhe Ma
- Department of Cardiology, the fourth affiliated hospital of Harbin Medical University, Harbin, Heilongjiang 150001 China
| | - Sally A Huber
- Department of Pathology and Laboratory Medicine, University of Vermont, Colchester, VT 05446 United States
| | - Wei Liu
- Department of Cardiology, the fourth affiliated hospital of Harbin Medical University, Harbin, Heilongjiang 150001 China; Harbin Medical University, Harbin, Heilongjiang 150001 China; Department of Geriatric Cardiovascular Division, Guangdong Provincial Geriatrics Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080 China.
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Han Y, Gao H, Gan X, Liu J, Bao C, He C. Roles of IL-11 in the regulation of bone metabolism. Front Endocrinol (Lausanne) 2024; 14:1290130. [PMID: 38352248 PMCID: PMC10862480 DOI: 10.3389/fendo.2023.1290130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 12/29/2023] [Indexed: 02/16/2024] Open
Abstract
Bone metabolism is the basis for maintaining the normal physiological state of bone, and imbalance of bone metabolism can lead to a series of metabolic bone diseases. As a member of the IL-6 family, IL-11 acts primarily through the classical signaling pathway IL-11/Receptors, IL-11 (IL-11R)/Glycoprotein 130 (gp130). The regulatory role of IL-11 in bone metabolism has been found earlier, but mainly focuses on the effects on osteogenesis and osteoclasis. In recent years, more studies have focused on IL-11's roles and related mechanisms in different bone metabolism activities. IL-11 regulates osteoblasts, osteoclasts, BM stromal cells, adipose tissue-derived mesenchymal stem cells, and chondrocytes. It's involved in bone homeostasis, including osteogenesis, osteolysis, bone marrow (BM) hematopoiesis, BM adipogenesis, and bone metastasis. This review exams IL-11's role in pathology and bone tissue, the cytokines and pathways that regulate IL-11 expression, and the feedback regulations of these pathways.
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Affiliation(s)
| | | | - Xinling Gan
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | | | | | - Chengqi He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Ma Y, Yu N, Lu H, Shi J, Zhang Y, Chen Z, Jia G. Titanium dioxide nanoparticles: revealing the mechanisms underlying hepatotoxicity and effects in the gut microbiota. Arch Toxicol 2023; 97:2051-2067. [PMID: 37344693 DOI: 10.1007/s00204-023-03536-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/06/2023] [Indexed: 06/23/2023]
Abstract
Numerous studies in recent years have questioned the safety of oral exposure to titanium dioxide nanoparticles (TiO2 NPs). TiO2 NPs are not only likely to accumulate in the gastrointestinal tract, but they are also found to penetrate the body circulation and reach distant organs. The liver, which is considered to be a target organ for nanoparticles, is of particular concern. TiO2 NPs accumulate in the liver and cause oxidative stress and inflammatory reactions, resulting in pathological damage. The impact of TiO2 NPs on liver aspartate aminotransferase (AST) and alanine aminotransferase (ALT) was studied using a meta-analysis. According to the findings, TiO2 NPs exposure can cause an elevation in AST and ALT levels in the blood. Furthermore, TiO2 NPs are eliminated mostly through feces, and their lengthy residence in the gut exposes them to microbiota. The gut microbiota is also dysbiotic due to titanium dioxide's antibacterial capabilities. This further leads to changes in the amount of microbiota metabolites, which can reach the liver with blood circulation and trigger hepatotoxicity through the gut-liver axis. This review examines the gut-liver axis to assess the effects of gut microbiota dysbiosis on the liver to provide suggestions for assessing the gut-hepatotoxicity of TiO2 NPs.
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Affiliation(s)
- Ying Ma
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Nairui Yu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Huaye Lu
- Jiangsu Prov Ctr Dis Control and Prevent, 172 Jiangsu Rd, Nanjing, 210009, People's Republic of China
| | - Jiaqi Shi
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Yi Zhang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
| | - Zhangjian Chen
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China.
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing, 100191, People's Republic of China.
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing, 100191, People's Republic of China
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Zhou SF, Xu QY, Yang Y, Xie HB, Zhang JX, Zhu QX. The role of Kupffer cell activation in immune liver damage induced by trichloroethylene associated with the IFN-γ/STAT1 signaling pathway. Toxicol Ind Health 2023:7482337231189605. [PMID: 37449946 DOI: 10.1177/07482337231189605] [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: 07/18/2023]
Abstract
Trichloroethylene (TCE) is a metal detergent commonly used in industry that can enter the human body through the respiratory tract and skin, causing occupational medicamentosa-like dermatitis due to TCE (OMDT) and multiple organ damage, including liver failure. However, the pathogenesis of liver injury remains unclear. Kupffer cells (KCs) are important tissue macrophages in the body because the polarization of KCs plays a crucial role in immune-mediated liver injury. However, the mechanism of KCs polarization in TCE-induced immune liver injury has not been thoroughly elucidated. In this study, we investigated the effect of TCE-induced KCs polarization on liver function and signal transduction pathways using the TCE sensitization model developed by our group. BALB/c mouse skin was exposed to TCE for sensitization, and an increase in the expression of M1 macrophage-specific markers (CD16/CD32, iNOS), M1 macrophage-specific cytokines IL-1β, and IFN-γ, P-JAK-1 and P-STAT1 levels were also found to be dramatically increased. When using low doses of gadolinium trichloride (GdCl3), the expression of these proteins and mRNA was significantly reduced. This phenomenon indicates that GdCl3 blocks TCE-induced polarization of KCs and suggests that the IFN-γ/STAT1 signaling pathway may be involved in the polarization process of KCs. These findings clarify the relationship between the polarization of KCs and immune liver injury and highlight the importance of further study of immune-mediated liver injury in TCE-sensitized mice.
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Affiliation(s)
- Si-Fan Zhou
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Qiong-Ying Xu
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Yi Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Hai-Bo Xie
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, China
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jia-Xiang Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Qi-Xing Zhu
- Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, Anhui, China
- Department of Dermatology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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Haidar Z, Traboulsi H, Eidelman DH, Baglole CJ. Differential inflammatory profile in the lungs of mice exposed to cannabis smoke with varying THC:CBD ratio. Arch Toxicol 2023; 97:1963-1978. [PMID: 37179517 PMCID: PMC10183104 DOI: 10.1007/s00204-023-03514-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Cannabis contains cannabinoids including Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD). THC causes the psychoactive effects of cannabis, and both THC and CBD are thought to be anti-inflammatory. Cannabis is typically consumed by inhaling smoke that contains thousands of combustion products that may damage the lungs. However, the relationship between cannabis smoke exposure and alterations in respiratory health is poorly defined. To address this gap in knowledge, we first developed a mouse model of cannabis smoke exposure using a nose-only rodent inhalation exposure system. We then tested the acute effects of two dried cannabis products that differ substantially in their THC-CBD ratio: Indica-THC dominant (I-THC; 16-22% THC) and Sativa-CBD dominant (S-CBD; 13-19% CBD). We demonstrate that this smoke exposure regime not only delivers physiologically relevant levels of THC to the bloodstream, but that acute inhalation of cannabis smoke modulates the pulmonary immune response. Cannabis smoke decreased the percentage of lung alveolar macrophages but increased lung interstitial macrophages (IMs). There was also a decrease in lung dendritic cells as well as Ly6Cintermediate and Ly6Clow monocytes, but an increase in lung neutrophils and CD8+ T cells. These immune cell changes were paralleled with changes in several immune mediators. These immunological modifications were more pronounced when mice were exposed to S-CBD compared to the I-THC variety. Thus, we show that acute cannabis smoke differentially affects lung immunity based on the THC:CBD ratio, thereby providing a foundation to further explore the effect of chronic cannabis smoke exposures on pulmonary health.
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Affiliation(s)
- Zahraa Haidar
- Research Institute of the McGill University Health Centre, 1001 Decarie Blvd (EM22248), Montreal, QC, H4A3J1, Canada
- Meakins-Christie Laboratories, Montreal, QC, Canada
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Hussein Traboulsi
- Research Institute of the McGill University Health Centre, 1001 Decarie Blvd (EM22248), Montreal, QC, H4A3J1, Canada
- Meakins-Christie Laboratories, Montreal, QC, Canada
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - David H Eidelman
- Research Institute of the McGill University Health Centre, 1001 Decarie Blvd (EM22248), Montreal, QC, H4A3J1, Canada
- Meakins-Christie Laboratories, Montreal, QC, Canada
- Department of Medicine, McGill University, Montreal, QC, Canada
| | - Carolyn J Baglole
- Research Institute of the McGill University Health Centre, 1001 Decarie Blvd (EM22248), Montreal, QC, H4A3J1, Canada.
- Meakins-Christie Laboratories, Montreal, QC, Canada.
- Department of Medicine, McGill University, Montreal, QC, Canada.
- Department of Pathology, McGill University, Montreal, QC, Canada.
- Department of Pharmacology & Therapeutics, McGill University, Montreal, QC, Canada.
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Guo M, Wang Z, Dai J, Fan H, Yuan N, Gao L, Peng H, Cheng X. Glycyrrhizic acid alleviates liver fibrosis in vitro and in vivo via activating CUGBP1-mediated IFN-γ/STAT1/Smad7 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 112:154587. [PMID: 36805480 DOI: 10.1016/j.phymed.2022.154587] [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: 08/11/2022] [Revised: 11/21/2022] [Accepted: 12/04/2022] [Indexed: 06/18/2023]
Abstract
BACKGROUND Hepatic fibrosis, a common pathological feature of chronic liver injuries, is a serious public health problem and lacks effective therapy. Glycyrrhizic acid (GA) is a bioactive ingredient in the root of traditional Chinese medicine licorice, and exhibits remarkable anti-viral, anti-inflammatory and hepatoprotective actions. PURPOSE Here we aimed to investigated whether GA provided a therapeutic efficacy in hepatic fibrosis and uncover its molecular mechanisms. STUDY DESIGN AND METHODS We investigated the anti-fibrosis effects of GA using CCl4-induced mouse mode of liver fibrosis as well as TGF-β1-activated human LX-2 cells and primary hepatic stellate cells (HSCs). CUGBP1-mediated IFN-γ/STAT1/Smad7 signaling was examined with immunofluorescence staining and western blot analysis. We designed and studied the binding of GA to CUGBP1 using in silico docking, and validated by microscale thermophoresis (MST) assay. RESULTS GA obviously attenuated CCl4-induced liver histological damage, and reduced serum ALT and AST levels. Meanwhile, GA decreased liver fibrogenesis markers such as α-SMA, collagen α1, HA, COL-III, and LN in the hepatic tissues. Mechanistically, GA remarkably elevated the levels of IFN-γ, p-STAT1, Smad7, and decreased CUGBP1 in vivo and in vitro. Over-expression of CUGBP1 completely abolished the anti-fibrotic effect of GA and regulation on IFN-γ/STAT1/Smad7 pathway in LX-2 cells and primary HSCs, confirming CUGBP1 played a pivotal role in the protection by GA from liver fibrosis. Further molecular docking and MST assay indicated that GA had a good binding affinity with the CUGBP1 protein. The dissociation constant (Kd) of GA and CUGBP1 was 0.293 μM. CONCLUSION Our study demonstrated for the first time that GA attenuated liver fibrosis and hepatic stellate cell activation by promoting CUGBP1-mediated IFN-γ/STAT1/Smad7 signalling pathways. GA may be a potential candidate compound for preventing or reliving liver fibrosis.
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Affiliation(s)
- Manman Guo
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Department of Gastroenterology, Kunshan Hospital affiliated to Nanjing University of Chinese Medicine, Kunshan, 215300, Jiangsu, China
| | - Zhongda Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Jinya Dai
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Haizhen Fan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Ningning Yuan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Liming Gao
- Department of Gastroenterology, Kunshan Hospital affiliated to Nanjing University of Chinese Medicine, Kunshan, 215300, Jiangsu, China
| | - Huiping Peng
- Department of Gastroenterology, Kunshan Hospital affiliated to Nanjing University of Chinese Medicine, Kunshan, 215300, Jiangsu, China
| | - Xiaolan Cheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; School of Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Jian L, Shi-wei L, Dan J, Juan W, Wei Z. GPR84 potently inhibits osteoclastogenesis and alleviates osteolysis in bone metastasis of colorectal cancer. J Orthop Surg Res 2023; 18:3. [PMID: 36593458 PMCID: PMC9806886 DOI: 10.1186/s13018-022-03473-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/22/2022] [Indexed: 01/03/2023] Open
Abstract
The expression of GPR84 in bone marrow-derived monocytes/macrophages (BMMs) can inhibit osteoclast formation; however, its role in bone metastasis of colorectal cancer (CRC) is still unknown. To investigate the effects of GPR84 on bone metastasis of CRC, the murine CRC cell line MC-38 was injected into tibial bone marrow. We found that the expression of GPR84 in BMMs was gradually downregulated during bone metastasis of CRC, and the activation of GPR84 significantly prevented osteoclastogenesis in the tumor microenvironment. Mechanistically, the MAPK pathway mediated the effects of GPR84 on osteoclast formation. Moreover, we found that IL-11 at least partly inhibited the expression of GPR84 in the tumor microenvironment through the inactivation of STAT1. Additionally, activation of GPR84 could prevent osteolysis during bone metastasis of CRC. Our results suggest that CRC cells downregulate the expression of GPR84 in BMMs to promote osteoclastogenesis in an IL-11-dependent manner. Thus, GPR84 could be a potential therapeutic target to attenuate bone destruction induced by CRC metastasis.
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Affiliation(s)
- Li Jian
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China ,grid.413856.d0000 0004 1799 3643Chengdu Medical College, Rongdu Avenue No. 601, Chengdu, 610000 People’s Republic of China
| | - Long Shi-wei
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Jing Dan
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Wu Juan
- Department of Pharmacy, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China
| | - Zheng Wei
- Department of Orthopedics, General Hospital of Western Theater Command, Rongdu Avenue No. 270, Chengdu, 610000 People’s Republic of China ,grid.413856.d0000 0004 1799 3643Chengdu Medical College, Rongdu Avenue No. 601, Chengdu, 610000 People’s Republic of China
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Chen Y, Tian B. IFN-γ promotes the development of systemic lupus erythematosus through the IFNGR1/2-PSTAT1-TBX21 signaling axis. Am J Transl Res 2022; 14:6874-6888. [PMID: 36398225 PMCID: PMC9641460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a chronic disease that causes inflammation in cartilage and the lining of blood vessels. Emerging evidence implicates IFN-γ as a major effector molecule in SLE during both active and stable stages. Here, we investigated the effects of IFN-γ on cytokines that play an autoimmune disease-promoting role and Th1-versus-Th2 and B cell dualism in SLE patients and mouse models of SLE. METHODS The levels of pro-inflammatory factors CXCL11, IFN-γ, IL-1β and IL-4, and immune complexes IgG, anti-dsDNA and anti-RNP were assessed through enzyme-linked immunosorbent assays (ELISA). Flow cytometry was performed to measure Th1, Th2 and B cell counts and IFNGR1, IFNGR2, pSTAT1 and TBX21 expression. The pathology of renal tissue from mouse SLE models was investigated through Hematoxylin eosin (H&E) staining. The levels of IgG, anti-dsDNA and anti-RNP were determined through immunofluorescence (IF) assays. RESULTS Skin damage was observed in SLE patients in both active and stable stages. ELISA analysis showed that SLE patients displayed higher levels of pro-inflammatory factors (CXCL11, IFN-γ, IL-1β and IL-4) and immune complexes (IgG, anti-dsDNA and anti-RNP). The percentage of Th1 and B cells was increased in blood samples from SLE patients with skin lesions (SL) or lupus nephritis (LN). The percentage of Th2 cells among the groups were comparable. Higher levels of IFNGR1, IFNGR2, pSTAT1 and TBX21 were observed in Th1 but not Th2 cells. In SLE mouse models, H&E staining revealed fewer immune complexes in glomerular endothelial cells and decreased hyaline thrombus in the capillary lumen following treatment with anti-IFN-γ antibodies or following IFNGR1 or STAT1 silencing. CONCLUSION IFN-γ contributes to the pathogenesis of SLE through the IFNGR1/2-pSTAT1-TBX21 axis and regulates inflammation and immune complex formation in SLE mice.
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Affiliation(s)
- Ying Chen
- Department of Nephrology, First Affiliated Hospital of China Medical UniversityShenyang 100012, Liaoning, China
| | - Bailing Tian
- Department of Rheumatology and Immunology, First Affiliated Hospital of China Medical UniversityShenyang 100012, Liaoning, China
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The nuclear receptor co-repressor 1 is a novel cardioprotective factor against acute myocardial ischemia-reperfusion injury. J Mol Cell Cardiol 2022; 166:50-62. [DOI: 10.1016/j.yjmcc.2022.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 01/01/2022] [Accepted: 01/18/2022] [Indexed: 12/31/2022]
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Park JS, Ma H, Roh YS. Ubiquitin pathways regulate the pathogenesis of chronic liver disease. Biochem Pharmacol 2021; 193:114764. [PMID: 34529948 DOI: 10.1016/j.bcp.2021.114764] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/05/2021] [Accepted: 09/08/2021] [Indexed: 02/07/2023]
Abstract
Chronic liver disease (CLD) is considered the leading cause of global mortality. In westernized countries, increased consumption of alcohol and overeating foods with high fat/ high glucose promote progression of CLD such as alcoholic liver disease (ALD) and non-alcoholic liver disease (NAFLD). Accumulating evidence and research suggest that ubiquitin, a 75 amino acid protein, plays crucial role in the pathogenesis of CLD through dynamic post-translational modifications (PTMs) exerting diverse cellular outcomes such as protein degradation through ubiquitin-proteasome system (UPS) and autophagy, and regulation of signal transduction. In this review, we present the function of ubiquitination and latest findings on diverse mechanism of PTMs, UPS and autophagy which significantly contribute to the pathogenesis of alcoholic liver disease (ALD), non-alcoholic fatty liver disease (NAFLD), cirrhosis, and HCC. Despite its high prevalence, morbidity, and mortality, there are only few FDA approved drugs that could be administered to CLD patients. The goal of this review is to present a variety of pathways and therapeutic targets involving ubiquitination in the pathogenesis of CLD. Further, this review summarizes collective views of pharmaceutical inhibition or activation of recent drugs targeting UPS and autophagy system to highlight potential targets and new approaches to treat CLD.
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Affiliation(s)
- Jeong-Su Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju 28160, South Korea
| | - Hwan Ma
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju 28160, South Korea
| | - Yoon-Seok Roh
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju 28160, South Korea.
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