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Zhu G, Zhang R, Xie Q, Li P, Wang F, Wang L, Li C. Shish-kebab structure fiber with nano and micro diameter regulate macrophage polarization for anti-inflammatory and bone differentiation. Mater Today Bio 2023; 23:100880. [PMID: 38149017 PMCID: PMC10750111 DOI: 10.1016/j.mtbio.2023.100880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/28/2023] Open
Abstract
Biopolymer grafts often have limited biocompatibility, triggering excessive inflammatory responses similar to foreign bodies. Macrophage phenotype shifts are pivotal in the inflammatory response and graft success. The effects of the morphology and physical attributes of the material itself on macrophage polarization should be the focus. In this study, we prepared electrospun fibers with diverse diameters and formed a shish-kebab (SK) structure on the material surface by solution-induced crystallization, forming electrospun fiber scaffolds with diverse pore sizes and roughness. In vitro cell culture experiments demonstrated that SK structure fibers could regulate macrophage differentiation toward M2 phenotype, and the results of in vitro simulation of in vivo tissue reconstruction by the microenvironment demonstrated that the paracrine role of M2 phenotype macrophages could promote bone marrow mesenchymal stem cells (BMSCs) to differentiate into osteoblasts. In rats implanted with a subcutaneous SK-structured fiber scaffold, the large-pore size and low-stiffness SK fiber scaffolds demonstrated superior immune performance, less macrophage aggregation, and easier differentiation to the anti-inflammatory M2 phenotype. Large pore sizes and low-stiffness SK fiber scaffolds guide the morphological design of biological scaffolds implanted in vivo, which is expected to be an effective strategy for reducing inflammation when applied to graft materials in clinical settings.
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Affiliation(s)
- Gaowei Zhu
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Rongyan Zhang
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Qianyang Xie
- Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, No. 639, Zhizaoju Rd., Shanghai, 200011, China
| | - Peilun Li
- Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, and Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, No. 639, Zhizaoju Rd., Shanghai, 200011, China
| | - Fujun Wang
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Lu Wang
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Chaojing Li
- Key Laboratory of Textile Science & Technology Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
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Lin Z, Zhang W, Li X, Du B, Li T, He H, Lu X, Zhang C, Liu Y, Ni J, Li L, Shi M. Triphenyl phosphate-induced macrophages dysfunction by activation TLR4-mediated ERK/NF-κB pathway. ENVIRONMENTAL TOXICOLOGY 2023. [PMID: 36929861 DOI: 10.1002/tox.23778] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 03/01/2023] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
Triphenyl phosphate (TPHP) is one of the most widely used organic phosphorus flame retardants and is ubiquitous in the environment. Studies have been reported that TPHP may lead to obesity, neurotoxicity and reproductive toxicity, but its impact on the immune system is almost blank. The present study was aimed to investigate the potential immunotoxicity of TPHP on macrophages and its underlying mechanism. The results demonstrated for the first time that TPHP (12.5, 25, and 50 μM)-induced F4/80+ CD11c+ phenotype of RAW 264.7 macrophages, accompanied by increased mRNA levels of inflammatory mediators, antigen-presenting genes (Cd80, Cd86, and H2-Aa), and significantly enhanced the phagocytosis of macrophage. Meanwhile, TPHP increased the expression of Toll-like receptor 4 (TLR4), and its co-receptor CD14, leading to significant activation of the downstream ERK/NF-κB pathway. However, co-exposure of cells to TAK-242, a TLR4 inhibitor, suppressed TPHP-induced F4/80+ CD11c+ phenotype, and down-regulated inflammatory mediators and antigen-presentation related genes, via blocked the TLR4/ERK/NF-κB pathway. Taken together, our results suggested that TPHP could induce macrophage dysfunction through activating TLR4-mediated ERK/NF-κB signaling pathway, and it may be the potential reason for health-threatening consequences.
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Affiliation(s)
- Zeheng Lin
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Wei Zhang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Xing Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Bohai Du
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Tianlan Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Haoqi He
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Xianzhu Lu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Chunmei Zhang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Yiwa Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Jindong Ni
- Precision Key Laboratory of Public Health, School of Public Health and Institute of Public Health and Wellness, Guangdong Medical University, Dongguan, China
| | - Li Li
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
| | - Ming Shi
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, Guangdong Province, China
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Cong Y, Wang Y, Yuan T, Zhang Z, Ge J, Meng Q, Li Z, Sun S. Macrophages in aseptic loosening: Characteristics, functions, and mechanisms. Front Immunol 2023; 14:1122057. [PMID: 36969165 PMCID: PMC10030580 DOI: 10.3389/fimmu.2023.1122057] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/13/2023] [Indexed: 03/10/2023] Open
Abstract
Aseptic loosening (AL) is the most common complication of total joint arthroplasty (TJA). Both local inflammatory response and subsequent osteolysis around the prosthesis are the fundamental causes of disease pathology. As the earliest change of cell behavior, polarizations of macrophages play an essential role in the pathogenesis of AL, including regulating inflammatory responses and related pathological bone remodeling. The direction of macrophage polarization is closely dependent on the microenvironment of the periprosthetic tissue. When the classically activated macrophages (M1) are characterized by the augmented ability to produce proinflammatory cytokines, the primary functions of alternatively activated macrophages (M2) are related to inflammatory relief and tissue repair. Yet, both M1 macrophages and M2 macrophages are involved in the occurrence and development of AL, and a comprehensive understanding of polarized behaviors and inducing factors would help in identifying specific therapies. In recent years, studies have witnessed novel discoveries regarding the role of macrophages in AL pathology, the shifts between polarized phenotype during disease progression, as well as local mediators and signaling pathways responsible for regulations in macrophages and subsequent osteoclasts (OCs). In this review, we summarize recent progress on macrophage polarization and related mechanisms during the development of AL and discuss new findings and concepts in the context of existing work.
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Affiliation(s)
- Yehao Cong
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yi Wang
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Tao Yuan
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Zheng Zhang
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Jianxun Ge
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Qi Meng
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Ziqing Li
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- *Correspondence: Ziqing Li, ; Shui Sun,
| | - Shui Sun
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- *Correspondence: Ziqing Li, ; Shui Sun,
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4
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Hou X, Shen Y, Sun M, Zhang B, Dai J, Chen D, Liu Z. Effect of regulating macrophage polarization phenotype on intervertebral disc degeneration. Immun Inflamm Dis 2022; 10:e714. [PMID: 36301028 PMCID: PMC9609449 DOI: 10.1002/iid3.714] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/07/2022] Open
Abstract
Background Macrophages are the only inflammatory cells that can penetrate the closed nucleus pulposus and their polarization plays an important role in intervertebral disc degeneration (IVDD). This paper attempted to investigate the pathogenesis of IVDD by altering the polarization state of macrophages. Methods Macrophage RAW264.7 cells were induced by interferonγ (IFN‐γ) and lipopolysaccharide (LPS). The polarization of RAW264.7 cells was estimated by western blot and immunofluorescence. The expressions of inflammatory factors were detected by ELISA. Subsequently, RAW264.7 cells were treated with different concentrations of minocycline (Mino) and sinomenine (Sino), followed by the assessment of cell viability with cell counting kit‐8 kit. Then, RAW264.7 cell culture medium was collected for the culture of human nucleus pulposus cells (NPCs). Toluidine blue staining and type II collagen staining were applied to assay the level of type II collagen. The cell apoptosis, oxidative stress, and nitric oxide (NO) level were appraised by TUNEL, oxidative stress kits and NO kit, respectively. Western blot was employed to test the levels of apoptosis‐ and oxidative stress‐related proteins. Results IFN‐γ and LPS could induce M1 polarization of RAW264.7 cells. Mino and Sino could reduce the polarization of RAW264.7 cells toward M1. M1‐polarized medium inhibited LPS‐induced activity, inflammation, and damage of NPCs, which were enhanced by Mino and Sino in medium. Conclusion M1 polarization of macrophages promoted LPS‐induced inflammation and damage of NPCs.
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Affiliation(s)
- Xuefeng Hou
- Department of OrthopedicsBinhai County People's HospitalJiangsu ProvinceChina
| | - Yucheng Shen
- Department of OrthopedicsBinhai County People's HospitalJiangsu ProvinceChina
| | - Minli Sun
- Department of GeriatricsBinhai County People's HospitalBinhaiJiangsu ProvinceChina
| | - Bing Zhang
- Department of OrthopedicsBinhai County People's HospitalJiangsu ProvinceChina
| | - Jiuming Dai
- Department of OrthopedicsBinhai County People's HospitalJiangsu ProvinceChina
| | - Dong Chen
- Department of OrthopedicsBinhai County People's HospitalJiangsu ProvinceChina
| | - Zhidong Liu
- Department of OrthopedicsBinhai County People's HospitalJiangsu ProvinceChina
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Brace N, Megson IL, Rossi AG, Doherty MK, Whitfield PD. SILAC-based quantitative proteomics to investigate the eicosanoid associated inflammatory response in activated macrophages. J Inflamm (Lond) 2022; 19:12. [PMID: 36050729 PMCID: PMC9438320 DOI: 10.1186/s12950-022-00309-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 08/10/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Macrophages play a central role in inflammation by phagocytosing invading pathogens, apoptotic cells and debris, as well as mediating repair of tissues damaged by trauma. In order to do this, these dynamic cells generate a variety of inflammatory mediators including eicosanoids such as prostaglandins, leukotrienes and hydroxyeicosatraenoic acids (HETEs) that are formed through the cyclooxygenase, lipoxygenase and cytochrome P450 pathways. The ability to examine the effects of eicosanoid production at the protein level is therefore critical to understanding the mechanisms associated with macrophage activation. RESULTS This study presents a stable isotope labelling with amino acids in cell culture (SILAC) -based proteomics strategy to quantify the changes in macrophage protein abundance following inflammatory stimulation with Kdo2-lipid A and ATP, with a focus on eicosanoid metabolism and regulation. Detailed gene ontology analysis, at the protein level, revealed several key pathways with a decrease in expression in response to macrophage activation, which included a promotion of macrophage polarisation and dynamic changes to energy requirements, transcription and translation. These findings suggest that, whilst there is evidence for the induction of a pro-inflammatory response in the form of prostaglandin secretion, there is also metabolic reprogramming along with a change in cell polarisation towards a reduced pro-inflammatory phenotype. CONCLUSIONS Advanced quantitative proteomics in conjunction with functional pathway network analysis is a useful tool to investigate the molecular pathways involved in inflammation.
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Affiliation(s)
- Nicole Brace
- Division of Biomedical Sciences, University of the Highlands and Islands, Centre for Health Science, Old Perth Road, Inverness, IV2 3JH, UK
| | - Ian L Megson
- Division of Biomedical Sciences, University of the Highlands and Islands, Centre for Health Science, Old Perth Road, Inverness, IV2 3JH, UK
| | - Adriano G Rossi
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Mary K Doherty
- Division of Biomedical Sciences, University of the Highlands and Islands, Centre for Health Science, Old Perth Road, Inverness, IV2 3JH, UK
| | - Phillip D Whitfield
- Division of Biomedical Sciences, University of the Highlands and Islands, Centre for Health Science, Old Perth Road, Inverness, IV2 3JH, UK.
- Present Address: Glasgow Polyomics, Garscube Campus, University of Glasgow, Glasgow, G61 1BD, UK.
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Tan Y, Feng J, Xiao Y, Bao C. Grafting Resveratrol onto Mesoporous Silica Nanoparticles towards Efficient Sustainable Immunoregulation and Insulin Resistance Alleviation for Diabetic Periodontitis Therapy. J Mater Chem B 2022; 10:4840-4855. [PMID: 35678150 DOI: 10.1039/d2tb00484d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The treatment of diabetic periodontitis (DP) has become a tough challenge in dental clinic mainly due to the intrinsic drawbacks of conventional therapy strategy and currently unclear mechanisms to elucidate...
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Affiliation(s)
- Yujie Tan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China.
| | - Jing Feng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China.
| | - Yu Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China.
| | - Chongyun Bao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, No. 14, Section 3, Renmin Nan Road, Chengdu 610041, Sichuan, China.
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Sun X, Gao J, Meng X, Lu X, Zhang L, Chen R. Polarized Macrophages in Periodontitis: Characteristics, Function, and Molecular Signaling. Front Immunol 2021; 12:763334. [PMID: 34950140 PMCID: PMC8688840 DOI: 10.3389/fimmu.2021.763334] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/04/2021] [Indexed: 12/23/2022] Open
Abstract
Periodontitis (PD) is a common chronic infectious disease. The local inflammatory response in the host may cause the destruction of supporting periodontal tissue. Macrophages play a variety of roles in PD, including regulatory and phagocytosis. Moreover, under the induction of different factors, macrophages polarize and form different functional phenotypes. Among them, M1-type macrophages with proinflammatory functions and M2-type macrophages with anti-inflammatory functions are the most representative, and both of them can regulate the tendency of the immune system to exert proinflammatory or anti-inflammatory functions. M1 and M2 macrophages are involved in the destructive and reparative stages of PD. Due to the complex microenvironment of PD, the dynamic development of PD, and various local mediators, increasing attention has been given to the study of macrophage polarization in PD. This review summarizes the role of macrophage polarization in the development of PD and its research progress.
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Affiliation(s)
- Xiaoyu Sun
- *Correspondence: Lei Zhang, ; Xiaoyu Sun,
| | | | | | | | - Lei Zhang
- Key Laboratory of Oral Diseases Research of Anhui Province, Department of Periodontology, Stomatologic Hospital & College, Anhui Medical University, Hefei, China
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Maehara T, Fujimori K. Inhibition of Prostaglandin F 2α Receptors Exaggerates HCl-Induced Lung Inflammation in Mice. Int J Mol Sci 2021; 22:ijms222312843. [PMID: 34884648 PMCID: PMC8657597 DOI: 10.3390/ijms222312843] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 01/11/2023] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are severe respiratory disorders that are caused by aspiration, sepsis, trauma, and pneumonia. A clinical feature of ALI/ARDS is the acute onset of severe hypoxemia, and the mortality rate, which is estimated at 38-50%, remains high. Although prostaglandins (PGs) are detected in the bronchoalveolar lavage fluid of patients with ALI/ARDS, the role of PGF2α in ALI remains unclear. We aimed to clarify the role of PGF2α/PGF2α receptor (FP) signaling in acid-induced ALI using an FP receptor antagonist, AL8810. Intratracheal injection of hydrochloric acid (HCl) increased neutrophil migration into the lungs, leading to respiratory dysfunction. Pre-administration of AL8810 further increased these features. Moreover, pre-treatment with AL8810 enhanced the HCl-induced expression of pro-inflammatory cytokines and neutrophil migratory factors in the lungs. Administration of HCl decreased the gene expression of lung surfactant proteins, which was further reduced by co-administration of AL8810. Administration of AL8810 also increased lung edema and reduced mRNA expression of epithelial sodium channel in the lungs, indicating that AL8810 reduced fluid clearance. Furthermore, AL8810 also increased lipopolysaccharide-induced expression of adhesion molecules such as intracellular adhesion molecule-1 and E-selectin in human umbilical vein endothelial cells. These results indicate that inhibition of FP receptors by AL8810 exacerbated HCl-induced ALI.
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Wang G, Zhu J, Liu L. Curcumin deactivates M2 macrophages to alleviate lung fibrosis in IgG4-related disease through activating the toll-like receptor 9 pathway. Immunopharmacol Immunotoxicol 2021; 44:I-X. [PMID: 34775900 DOI: 10.1080/08923973.2021.2001498] [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: 10/19/2022]
Abstract
OBJECTIVES To explore the effects and mechanism of Curcumin on pulmonary fibrosis in IgG4-related disease (IgG4-RD). METHODS The expression of fibrosis factors, inflammatory factors and markers of M1/M2 macrophages in lung tissue of IgG4-RD patients was detected by RT-qPCR or Western blotting. The macrophages of IgG4-RD patients were isolated and treated with different concentrations of Curcumin, and the markers of M1/M2 macrophages were detected by RT-qPCR, Western blotting or ELISA. Next, the pulmonary fibroblasts of IgG4-RD patients were isolated and cultured with the supernatant of macrophages treated with Curcumin. Cell proliferation and migration were detected by CCK-8 and Transwell assay, respectively. SOD activity and ROS content were detected by the xanthine oxidase method and flow cytometry, respectively. Then the expression of Toll-like Receptor 9 (TLR9) and its downstream proteins were detected by Western blotting. After treating the cells with TLR9 antagonist IRS869, the changes in the above indicators were further detected. RESULTS The collagen deposition, inflammatory factors secretion and M2 polarization of macrophages were increased in lung tissue of IgG4-RD patients. Curcumin decreased the macrophage M2 polarization and inhibited the proliferation and migration of fibroblasts, reduced the level of oxidative stress, and suppressed the occurrence of fibrosis. The TLR9 pathway was inhibited in IgG4-RD lung tissues, and Curcumin activated this pathway and reduced macrophage M2 polarization. And the inhibitory effect of Curcumin on pulmonary fibrosis could be reversed by IRS869. CONCLUSIONS Curcumin inhibited the occurrence of pulmonary fibrosis in IgG4-RD by inhibiting the TLR9 signaling pathway-mediated macrophage M2 polarization.
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Affiliation(s)
- Gang Wang
- School of Clinical Medicine, Tsinghua University, Beijing, China.,Department of Rheumatology and Immunology, Beijing Tsinghua Changgung Hospital, Beijing, China
| | - Jian Zhu
- Department of Rheumatology and Immunology, the First Medical Center of PLA General Hospital, Beijing, China
| | - LiPeng Liu
- Department of Rheumatology and Immunology, Zaozhuang Municipal Hospital of Shandong Province, Zaozhuang, Shandong Province, China
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Protection of 6-OHDA neurotoxicity by PGF 2α through FP-ERK-Nrf2 signaling in SH-SY5Y cells. Toxicology 2021; 450:152686. [PMID: 33486071 DOI: 10.1016/j.tox.2021.152686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/07/2021] [Accepted: 01/16/2021] [Indexed: 12/26/2022]
Abstract
6-Hydroxydopamine (6-OHDA) is a neurotoxin that destroy dopaminergic neurons and widely used to establish animal models of Parkinson's disease. Prostaglandins (PGs) are involved in various cellular processes, including the damage and repair of neuronal cells. However, the function of PGF2α in neuronal cells remains unclear. In this study, we investigated the effects of PGF2α against 6-OHDA-mediated toxicity in human neuroblastoma SH-SY5Y cells and elucidated its underlying molecular mechanism. When the cells were treated with 6-OHDA (50 μM) for 6 h, the expression levels of PGF2α synthetic enzymes; cyclooxygenase-2 and aldo-keto reductase 1C3 as PGF2α synthase were enhanced in an incubation-time-dependent manner. In addition, the production of PGF2α was increased in 6-OHDA-treated cells. Fluprostenol, a PGF2α receptor (FP) agonist (500 nM), suppressed 6-OHDA-induced cell death by decreasing the production of reactive oxygen species (ROS) and increasing the expression of the anti-oxidant genes. These fluprostenol-mediated effects were inhibited by co-treatment with AL8810, an FP receptor antagonist (1 μM) or transfection with FP siRNA (20 nM). Moreover, 6-OHDA-induced phosphorylation of extracellular signal-regulated kinase (ERK), a member of the mitogen-activated protein kinase family, was inhibited by co-incubation with AL8810. Furthermore, fluprostenol itself enhanced ERK phosphorylation and further elevated the 6-OHDA-induced phosphorylation of ERK. In addition, 6-OHDA induced nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2), activating anti-oxidant gene expression, was repressed by co-culturing with AL8810. These results indicate that PGF2α suppressed 6-OHDA-induced neuronal cell death by enhancing anti-oxidant gene expression via the FP receptor-ERK-Nrf2 signaling. Thus, FP receptor is a potential target for inhibition of ROS-mediated neuronal cell death.
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11
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Maehara T, Higashitarumi F, Kondo R, Fujimori K. Prostaglandin F 2α receptor antagonist attenuates LPS-induced systemic inflammatory response in mice. FASEB J 2020; 34:15197-15207. [PMID: 32985737 DOI: 10.1096/fj.202001481r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 11/11/2022]
Abstract
Although it is known that prostaglandin (PG) F2α level is elevated in the plasma of patients with sepsis, the roles of PGF2α is still unknown. We aimed to clarify the roles of PGF2α in the regulation of lipopolysaccharide (LPS)-induced systemic inflammation. At 24 hours after LPS administration, neutrophil infiltration in peritoneal cavity, the mRNA expression of pro-inflammatory cytokines such as tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and macrophage inflammatory protein-2, and tissue damages in lung, liver, and kidney were all increased. Inhibition of FP receptors significantly decreased LPS-induced neutrophil infiltration and lowered the mRNA expression of the pro-inflammatory cytokines. At 6 hour after LPS administration, the level of anti-inflammatory cytokine, IL-10 in peritoneal lavage fluid was higher than that in naïve mice. Inhibition of FP receptors in these mice increased IL-10 level further. Stimulation of isolated peritoneal neutrophils by LPS increased the gene expression of IL-10, which was further increased by AL8810 treatment. Administration of an anti-IL-10 antibody antagonized the AL8810-decreased mRNA expression of pro-inflammatory cytokines and tissue damages. These results indicate that inhibition of FP receptors by AL8810 attenuated LPS-induced systemic inflammation in mice via enhanced IL-10 production.
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Affiliation(s)
- Toko Maehara
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences
| | | | - Risa Kondo
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences
| | - Ko Fujimori
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences
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12
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Kostoff RN, Briggs MB, Shores DR. Treatment repurposing for inflammatory bowel disease using literature-related discovery and innovation. World J Gastroenterol 2020; 26:4889-4899. [PMID: 32952337 PMCID: PMC7476176 DOI: 10.3748/wjg.v26.i33.4889] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/21/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) incidence has been increasing steadily, most dramatically in the Western developed countries. Treatment often includes lifelong immunosuppressive therapy and surgery. There is a critical need to reduce the burden of IBD and to discover medical therapies with better efficacy and fewer potential side-effects. Repurposing of treatments originally studied in other diseases with similar pathogenesis is less costly and time intensive than de novo drug discovery. This study used a treatment repurposing methodology, the literature-related discovery and innovation (LRDI) text mining system, to identify potential treatments (developed for non-IBD diseases) with sufficient promise for extrapolation to treatment of IBD. By searching for desirable patterns of twenty key biomarkers relevant to IBD (e.g., inflammation, reactive oxygen species, autophagy, barrier function), the LRDI-based query retrieved approximately 9500 records from Medline. The most recent 350 records were further analyzed for proof-of-concept. Approximately 18% (64/350) met the criteria for discovery (not previously studied in IBD human or animal models) and relevance for application to IBD treatment. Many of the treatments were compounds derived from herbal remedies, and the majority of treatments were being studied in cancer, diabetes, and central nervous system disease, such as depression and dementia. As further validation of the search strategy, the query identified ten treatments that have just recently begun testing in IBD models in the last three years. Literature-related discovery and innovation text mining contains a unique search strategy with tremendous potential to identify treatments for repurposing. A more comprehensive query with additional key biomarkers would have retrieved many thousands more records, further increasing the yield of IBD treatment repurposing discovery.
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Affiliation(s)
- Ronald Neil Kostoff
- School of Public Policy, Georgia Institute of Technology, Gainesville, VA 20155, United States
| | | | - Darla Roye Shores
- The Hopkins Resource for Intestinal Vitality and Enhancement, the Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
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Liao H, Li Y, Zhang X, Zhao X, Zheng D, Shen D, Li R. Protective Effects of Thalidomide on High-Glucose-Induced Podocyte Injury through In Vitro Modulation of Macrophage M1/M2 Differentiation. J Immunol Res 2020; 2020:8263598. [PMID: 32908940 PMCID: PMC7474395 DOI: 10.1155/2020/8263598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/25/2020] [Accepted: 07/11/2020] [Indexed: 12/19/2022] Open
Abstract
Objective. It has been shown that podocyte injury represents an important pathological basis that contributes to proteinuria and eventually leads to kidney failure. High glucose (HG) activates macrophage polarization, further exacerbating HG-induced podocyte injury. Our previous study on diabetic nephropathy rats indicated that thalidomide (Tha) has renoprotective properties. The present study explored the effects of Tha on mRNA and protein expressions of inducible nitric oxide synthase (iNOS), tumor necrosis factor- (TNF-) α, mannose receptor (CD206), and arginase- (Arg-) 1 in HG-activated macrophages. iNOS and TNF-α are established as markers of classically activated macrophage (M1). CD206 and Arg-1 are regarded as markers of alternatively activated macrophages (M2). During the experiment, the supernatants of (HG)-treated and (Tha)-treated macrophages, designated as (HG) MS and (Tha) MS, were simultaneously collected and processed. TNF-α and interleukin- (IL-) 1β levels as well as protein expressions of nephrin and podocin in HG, (HG) MS, and (Tha) MS-cultured podocytes were evaluated. The results showed that compared to the 11.1 mM normal glucose (NG), the 33.3 mM HG-cultured RAW 264.7 cells exhibited upregulated iNOS and TNF-α mRNAs and protein expressions, and downregulated CD206 and Arg-1 expressions significantly (p < 0.05). Tha 200 μg/ml suppressed iNOS and TNF-α, and promoted CD206 and Arg-1 expressions significantly compared to the HG group (p < 0.05). Furthermore, (HG) MS-treated podocytes showed an increase in TNF-α and IL-1β levels and a downregulation in nephrin and podocin expression significantly compared to NG-treated and HG-treated podocytes (p < 0.05). The (Tha 200 μg/ml) MS group exhibited a decrease in TNF-α and IL-1β level, and an upregulation in nephrin and podocin expressions significantly compared to the (HG) MS group (p < 0.05). Our research confirmed that HG-activated macrophage differentiation aggravates HG-induced podocyte injury in vitro and the protective effects of Tha might be related to its actions on TNF-α and IL-1β levels via its modulation on M1/M2 differentiation.
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Affiliation(s)
- Hui Liao
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Yuanping Li
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Xilan Zhang
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Xiaoyun Zhao
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Dan Zheng
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Dayue Shen
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
| | - Rongshan Li
- Department of Pharmacy, Shanxi Provincial People's Hospital of Shanxi Medical University, Taiyuan 030012, China
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