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Wang H, Li T, Jiang Y, Chen S, Wu Z, Zeng X, Yang K, Duan P, Zou S. Long non-coding RNA LncTUG1 regulates favourable compression force-induced cementocytes mineralization via PU.1/TLR4/SphK1 signalling. Cell Prolif 2024; 57:e13604. [PMID: 38318762 DOI: 10.1111/cpr.13604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 12/18/2023] [Accepted: 01/09/2024] [Indexed: 02/07/2024] Open
Abstract
Orthodontic tooth movement (OTM) is a highly coordinated biomechanical response to orthodontic forces with active remodelling of alveolar bone but minor root resorption. Such antiresorptive properties of root relate to cementocyte mineralization, the mechanisms of which remain largely unknown. This study used the microarray analysis to explore long non-coding ribonucleic acids involved in stress-induced cementocyte mineralization. Gain- and loss-of-function experiments, including Alkaline phosphatase (ALP) activity and Alizarin Red S staining, quantitative real-time polymerase chain reaction (qRT-PCR), Western blot, and immunofluorescence analyses of mineralization-associated factors, were conducted to verify long non-coding ribonucleic acids taurine-upregulated gene 1 (LncTUG1) regulation in stress-induced cementocyte mineralization, via targeting the Toll-like receptor 4 (TLR4)/SphK1 axis. The luciferase reporter assays, chromatin immunoprecipitation assays, RNA pull-down, RNA immunoprecipitation, and co-localization assays were performed to elucidate the interactions between LncTUG1, PU.1, and TLR4. Our findings indicated that LncTUG1 overexpression attenuated stress-induced cementocyte mineralization, while blocking the TLR4/SphK1 axis reversed the inhibitory effect of LncTUG1 on stress-induced cementocyte mineralization. The in vivo findings also confirmed the involvement of TLR4/SphK1 signalling in cementocyte mineralization during OTM. Mechanistically, LncTUG1 bound with PU.1 subsequently enhanced TLR4 promotor activity and thus transcriptionally elevated the expression of TLR4. In conclusion, our data revealed a critical role of LncTUG1 in regulating stress-induced cementocyte mineralization via PU.1/TLR4/SphK1 signalling, which might provide further insights for developing novel therapeutic strategies that could protect roots from resorption during OTM.
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Affiliation(s)
- Han Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tiancheng Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Yukun Jiang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shuo Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zuping Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Xinyi Zeng
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Kuan Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peipei Duan
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Wang G, Xu YL, Zhang XH, Tang L, Li Y. LncRNA HOTTIP regulates TLR4 promoter methylation by recruiting H3K4 methyltransferase MLL1 to affect apoptosis and inflammatory response of fibroblast-like synoviocyte in rheumatoid arthritis. Kaohsiung J Med Sci 2024; 40:335-347. [PMID: 38363110 DOI: 10.1002/kjm2.12805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/05/2023] [Accepted: 12/24/2023] [Indexed: 02/17/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease, and the role of HOXA transcript at the distal tip (HOTTIP) in its pathogenesis remains underexplored. This study investigates the mechanism by which HOTTIP influences apoptosis and the inflammatory response of fibroblast-like synoviocytes (FLS). An RA mouse model was established, and clinical scores were analyzed. Pathological changes in synovial tissues, bone mineral density (BMD) of the paws, serum tartrate-resistant acid phosphatase (TRAP) activity, and TNF-α and IL-1β levels were assessed. FLS were transfected, and cell proliferation and apoptosis were examined. The RNA-pull-down assay determined HOTTIP's interaction with mixed-lineage leukemia 1 (MLL1), while RNA immunoprecipitation assay measured HOTTIP expression pulled down by MLL1. The levels of MLL1 and toll-like receptor 4 (TLR4) after MLL1 overexpression based on HOTTIP silencing were determined. Chromatin immunoprecipitation (ChIP) was performed with H3K4me3 as an antibody, followed by the evaluation of TLR4 expression. HOTTIP expression was elevated in RA mouse synovial tissues. Inhibition of HOTTIP led to reduced clinical scores, inflammatory infiltration, synovial hyperplasia, TRAP activity, and TNF-α and IL-1β levels, along with increased BMD. In vitro Interference with HOTTIP suppressed RA-FLS apoptosis and inflammation. HOTTIP upregulated TLR4 expression by recruiting MLL1 to facilitate TLR4 promoter methylation. MLL1 overexpression reversed HOTTIP silencing-mediated repression of RA-FLS apoptosis. Activation of H3K4 methylation counteracted HOTTIP knockout, ameliorating the inflammatory response. HOTTIP regulates TLR4 expression by recruiting MLL1, leading to TLR4 promoter methylation, thereby suppressing RA-FLS proliferation and inducing cell apoptosis and inflammatory response in RA.
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Affiliation(s)
- Guan Wang
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering Luzhou, Sichuan, China
| | - Yu-Lin Xu
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering Luzhou, Sichuan, China
| | - Xi-Hai Zhang
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering Luzhou, Sichuan, China
| | - Lian Tang
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Sichuan Provincial Laboratory of Orthopaedic Engineering Luzhou, Sichuan, China
| | - Yao Li
- Laboratory Animal Center, Southwest Medical University, Luzhou, Sichuan, China
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Yan LS, Cheng BCY, Wang YW, Zhang SF, Qiu XY, Kang JY, Zhang C, Jia ZH, Luo G, Zhang Y. Xuelian injection ameliorates complete Freund's adjuvant-induced acute arthritis in rats via inhibiting TLR4 signaling. Heliyon 2023; 9:e21635. [PMID: 38027703 PMCID: PMC10658240 DOI: 10.1016/j.heliyon.2023.e21635] [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: 11/15/2022] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Background Xuelian injection (XI), a classic preparation extracted from Saussureae Involucratae Herba, has been clinically used to manage rheumatoid arthritis (RA) for nearly twenty years in China. However, the underlying anti-RA mechanism of XI remains unclear. In this study, complete Freund's adjuvant (CFA)-induced acute arthritic model was used to examine the anti-RA effects of XI in vivo. The molecular mechanisms of this action were further investigated using lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Methods XI and XI freeze dried powder were characterized by UPLC analysis. CD68 and TLR4 expression in the ankle joints was measured by immunohistochemistry. The secretion of inflammatory mediators was detected by ELISA. The expression levels of TLR4 involved components were measured by Western blotting. The localization of transcription factors was measured by immunofluorescence assay. Results XI treatment ameliorated arthritic symptoms induced by CFA in the ankle joints of rats. The serum levels of inflammatory mediators, including TNF-α, MCP-1, and Rantes were decreased by XI treatment. The elevation of CD68 and TLR4 levels in ankle joints caused by CFA was suppressed by XI treatment. Moreover, XI treatment inhibited the secretion of nitric oxide and prostaglandin E2 in LPS-treated RAW264.7 macrophages. The expression of their enzymes iNOS and COX-2 was also decreased after XI treatment. The production of inflammatory mediators, including TNF-α, IL-6, IL-1β, MCP-1, MIP-1α, and Rantes was reduced by XI treatment in LPS-stimulated RAW264.7 cells. The phosphorylation of p38, JNK, ERK, TBK1, IKKα/β, IκB, p65, c-Jun, and IRF3 was reduced after XI treatment. Additionally, the expression levels of nuclear proteins of p65, c-Jun, and IRF3 were inhibited by XI treatment. Conclusions Taken together, XI possesses potential anti-RA effect and the underlying mechanism may be closely associated with the inhibition of TLR4 signaling. Our findings provide further pharmacological justifications for the clinical use of XI in RA treatment.
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Affiliation(s)
- Li-Shan Yan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | | | - Yi-Wei Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Shuo-Feng Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Xin-Yu Qiu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Jian-Ying Kang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Chao Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Zhan-Hong Jia
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Gan Luo
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Yi Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
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Chang WC, Chen MJ, Hsiao CD, Hu RZ, Huang YS, Chen YF, Yang TH, Tsai GY, Chou CW, Chen RS, Chuang YJ, Liu YW. The anti-platelet drug cilostazol enhances heart rate and interrenal steroidogenesis and exerts a scant effect on innate immune responses in zebrafish. PLoS One 2023; 18:e0292858. [PMID: 37903128 PMCID: PMC10615288 DOI: 10.1371/journal.pone.0292858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 10/01/2023] [Indexed: 11/01/2023] Open
Abstract
RATIONALE Cilostazol, an anti-platelet phosphodiesterase-3 inhibitor used for the treatment of intermittent claudication, is known for its pleiotropic effects on platelets, endothelial cells and smooth muscle cells. However, how cilostazol impacts the endocrine system and the injury-induced inflammatory processes remains unclear. METHODS We used the zebrafish, a simple transparent model that demonstrates rapid development and a strong regenerative ability, to test whether cilostazol influences heart rate, steroidogenesis, and the temporal and dosage effects of cilostazol on innate immune cells during tissue damage and repair. RESULTS While dosages of cilostazol from 10 to 100 μM did not induce any noticeable morphological abnormality in the embryonic and larval zebrafish, the heart rate was increased as measured by ImageJ TSA method. Moreover, adrenal/interrenal steroidogenesis in larval zebrafish, analyzed by whole-mount 3β-Hsd enzymatic activity and cortisol ELISA assays, was significantly enhanced. During embryonic fin amputation and regeneration, cilostazol treatments led to a subtle yet significant effect on reducing the aggregation of Mpx-expressing neutrophil at the lesion site, but did not affect the immediate injury-induced recruitment and retention of Mpeg1-expressing macrophages. CONCLUSIONS Our results indicate that cilostazol has a significant effect on the heart rate and the growth as well as endocrine function of steroidogenic tissue; with a limited effect on the migration of innate immune cells during tissue damage and repair.
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Affiliation(s)
- Wei-Chun Chang
- Department of Life Science, Tunghai University, Taichung, Taiwan
- Feng Yuan Hospital of the Ministry of Health and Welfare, Taichung, Taiwan
| | - Mei-Jen Chen
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Rong-Ze Hu
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Yu-Shan Huang
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Yu-Fu Chen
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Tsai-Hua Yang
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Guan-Yi Tsai
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Chih-Wei Chou
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Ren-Shiang Chen
- Department of Life Science, Tunghai University, Taichung, Taiwan
| | - Yung-Jen Chuang
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
- Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Yi-Wen Liu
- Department of Life Science, Tunghai University, Taichung, Taiwan
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Feng W, Zhong XQ, Zheng XX, Liu QP, Liu MY, Liu XB, Lin CS, Xu Q. The Underlying Mechanism of Duanteng Yimu Decoction in Inhibiting Synovial Hyperplasia in Rheumatoid Arthritis. J Immunol Res 2023; 2023:2340538. [PMID: 37252680 PMCID: PMC10225272 DOI: 10.1155/2023/2340538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 04/19/2023] [Accepted: 05/13/2023] [Indexed: 05/31/2023] Open
Abstract
Dysregulation of microRNAs (miRNAs) is associated with the pathogenesis of rheumatoid arthritis (RA). Our previous studies confirmed that Duanteng Yimu decoction (DTYMT) effectively inhibits RA fibroblast-like synoviocyte (FLS) proliferation. In this study, we investigated the influence of DTYMT on miR-221 in RA individuals. Hematoxylin-eosin (HE) staining was performed to assess histopathological alterations in collagen-induced arthritis (CIA) mice. The expression of miR-221-3p and TLR4 in PBMC, FLS, and cartilage was measured by RT-qPCR. In the in vitro experiments, DTYMT-containing serum was incubated with FLS-transfected miR-221 mimic or inhibitor. CCK-8 was performed to determine FLS proliferation, and the secretion of IL-1β, IL-6, IL-18, and TNF-α was quantified by ELISA assay. In addition, the regulation of miR-221 expression on FLS apoptosis was assessed using flow cytometry. Finally, western blot was employed to reflect TLR4/MyD88 protein levels. HE results showed that DTYMT effectively reduced synovial hyperplasia in the joints of CIA mice. RT-qPCR assay of FLS and cartilage of the model group showed that miR-221-3p and TLR4 significantly increased compared with those in the normal group. All outcomes were improved by DTYMT. The miR-221 mimic reversed the inhibitory effect of DTYMT-containing serum on FLS proliferation, the release of IL-1β, IL-18, IL-6, and TNF-α, and FLS apoptosis, as well as TLR4/MyD88 protein levels. The results showed that miR-221 promotes the activity of RA-FLS by activating TLR4/MyD88 signaling, and DTYMT treats RA by reducing miR-221 in CIA mice.
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Affiliation(s)
- Wei Feng
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xiao-Qin Zhong
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xue-Xia Zheng
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Qing-Ping Liu
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Min-Ying Liu
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xiao-Bao Liu
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Chang-Song Lin
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Qiang Xu
- The First Clinical Medicine School, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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6
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Hu X, Li M, Zhang Y, Sang K, Zhang Y, Li W, Liu B, Wan L, Du B, Qian J, Meng F, Fu Y, Dai M, Gao G, Ye H. An innovative immunotherapeutic strategy for rheumatoid arthritis: Selectively suppressing angiogenesis and osteoclast differentiation by fully human antibody targeting thymocyte antigen-1. Exp Cell Res 2023; 424:113490. [PMID: 36706943 DOI: 10.1016/j.yexcr.2023.113490] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/14/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023]
Abstract
Thymocyte antigen-1 (THY-1)is a potential target for rheumatoid arthritis (RA) treatment, and THY-1 positive fibroblast-like synoviocytes (FLS) are enriched in the synovium of RA patients and participate in angiogenesis to accelerate RA progression. In this study, we screened an antibody targeting THY-1 (THY-1 Ab) and explored its mechanism in alleviating RA progression. THY-1 Ab was screened from ScFv phage antibody library by phage display technology (PDT). THY-1 Ab-treated collagen induced arthritis (CIA) mice had lower degree of arthritis scores. We explore the mechanism of THY-1 Ab in alleviating RA progression. THY-1 Ab can remarkably inhibit the secretion of pro-inflammatory factors and promote the secretion of anti-inflammatory factors. Further experiments showed that THY1 Ab downregulated the expression of JUNB by the hsa_circ_0094342/miRNA-155-5P/SPI1 axis, inhibited RA angiogenesis and osteoclast differentiation, and relieved RA progression. These findings support that THY-1 Ab is a promising therapeutic antibody for RA treatment.
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Affiliation(s)
- Xuanxuan Hu
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Meiqi Li
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yu Zhang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Kanru Sang
- The First School of Clinical Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yejun Zhang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Wulan Li
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Bo Liu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Leyu Wan
- School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Bang Du
- The First School of Clinical Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jinheng Qian
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Fanxi Meng
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yanneng Fu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Meijuan Dai
- The Second School of Clinical Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Guohui Gao
- School of Laboratory Medicine and Life Sciences, WenZhou Medical University, Wenzhou, Zhejiang, 325035, China; Key Laboratory of Laboratory Medicine, Ministry Education, Wenzhou, Zhejiang, 325035, China.
| | - Hui Ye
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
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7
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Fang Y, Chen W, Li Z, Chen Y, Wu X, Zhu X, Wang H, Chen X, Liang Q, Huang J, Han X, Hong W, Wang X, Wei W, Yu Z, Tu J. The role of a key transcription factor PU.1 in autoimmune diseases. Front Immunol 2022; 13:1001201. [PMID: 36248862 PMCID: PMC9557192 DOI: 10.3389/fimmu.2022.1001201] [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: 07/23/2022] [Accepted: 09/12/2022] [Indexed: 12/03/2022] Open
Abstract
PU.1, a transcription factor member of the E26 transformation-specific family, affects the function of a variety of immune cells in several physiological and pathological conditions. Previous studies studying the role of PU.1 in pathological conditions have mainly focused on immune system-related cancers, and a series of articles have confirmed that PU.1 mutation can induce a variety of immune cell-related malignancies. The underlying mechanism has also been extensively validated. However, the role of PU.1 in other major immune system-related diseases, namely, systemic autoimmune diseases, is still unclear. It was only in recent years that researchers began to gradually realize that PU.1 also played an important role in a variety of autoimmune diseases, such as rheumatoid arthritis (RA), experimental autoimmune encephalomyelitis (EAE) and systemic lupus erythematosus (SLE). This review article summarizes the findings of recent studies that investigated the role of PU.1 in various autoimmune diseases and the related underlying mechanisms. Furthermore, it presents new ideas and provides insight into the role of PU.1 as a potential treatment target for autoimmune diseases and highlights existing research problems and future research directions in related fields.
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Affiliation(s)
- Yilong Fang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Weile Chen
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Zhe Li
- The First Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Yu Chen
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Xuming Wu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Xiangling Zhu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Huihui Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Xiaochun Chen
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Qiuni Liang
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Jinghua Huang
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Xintong Han
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Wenming Hong
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xinming Wang
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China,*Correspondence: Jiajie Tu, ; Zhiying Yu, ; Wei Wei,
| | - Zhiying Yu
- Department of Gynecology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People’s Hospital, Shenzhen, China,*Correspondence: Jiajie Tu, ; Zhiying Yu, ; Wei Wei,
| | - Jiajie Tu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China,*Correspondence: Jiajie Tu, ; Zhiying Yu, ; Wei Wei,
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8
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Zheng S, Pan L, Hou J, Liao A, Hou Y, Yu G, Li X, Yuan Y, Dong Y, Zhao P, Zhang J, Hu Z, Hui M, Cao J, Huang JH. The role of wheat embryo globulin nutrients in improving cognitive dysfunction in AD rats. Food Funct 2022; 13:9856-9867. [PMID: 36047913 DOI: 10.1039/d2fo00815g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neuroinflammation and intestinal microbiota cause pathological progression of Alzheimer's disease (AD), leading to neurodegeneration and cognitive decline. This study investigates the effects of wheat embryo globulin nutrient (WEGN) on depression, neuroinflammation, and intestinal microbial disorder caused by AD and its protective mechanism on cognitive impairment. Results demonstrated that rats in the WEGN group have lower feed intake but higher body weight than those in the control group. Notably, rats in the WEGN group have a higher number of cross grids and uprights and a smaller amount of fecal particles than those in the control group. Biochemical examinations revealed that rats in the WEGN group had lower expression of interleukin-1β, interleukin-6, and tumor necrosis factor α in hippocampus tissue and the expression of genes and proteins related to the TLR4/MyD88/NF-κB signaling pathway in AD rats was down-regulated compared to those in the control group. The 16S rRNA gene sequencing results demonstrated that WEGN treatment inhibits the increase of Erysipelotrichaceae, Erysipelatoclostridium, Erysipelotrichaceae, Corynebacterium, and Frisingicoccus, and the reduction of Lactobacillus in AD rats. WEGN has potential value as a practical food in alleviating neuroinflammation-related diseases such as AD.
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Affiliation(s)
- Shuainan Zheng
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Long Pan
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Jianguang Hou
- Workstation of Zhongyuan Scholars of Henan Province, Henan Yangshao Liquor Co., Ltd., Mianchi Xian, 472400, PR China
| | - Aimei Liao
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Yinchen Hou
- College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450044, PR China
| | - Guanghai Yu
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Xiaoxiao Li
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Yongjian Yuan
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Yuqi Dong
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Penghui Zhao
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Jie Zhang
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Zheyuan Hu
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Ming Hui
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Jian Cao
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China.
| | - Ji-Hong Huang
- Henan Provincial Key Laboratory of Biological Processing and Nutritional Function of Wheat, School of Biological Engineering, Henan University of Technology, Zhengzhou 450001, PR China. .,School of Food and Pharmacy, Xuchang University, Xuchang 461000, PR China.,State Key Laboratory of Crop Stress Adaptation and Improvement, College of Agriculture, Henan University, Kaifeng 475004, China.
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9
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Sheng S, Wang X, Liu X, Hu X, Shao Y, Wang G, Mao D, Li C, Chen B, Chen X. The role of resveratrol on rheumatoid arthritis: From bench to bedside. Front Pharmacol 2022; 13:829677. [PMID: 36105210 PMCID: PMC9465647 DOI: 10.3389/fphar.2022.829677] [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: 12/06/2021] [Accepted: 07/13/2022] [Indexed: 11/21/2022] Open
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by symmetrical polyarthritis as its main clinical manifestation. Uncontrolled RA eventually leads to joint deformities and loss of function. Currently, the pathogenesis of RA remains under discussion, and RA treatment is still at the bottleneck stage. Resveratrol has long been regarded as a potential antioxidant drug for RA treatment. Currently, resveratrol is considered to exert therapeutic effects on RA by activating silent information regulator 1 (SIRT1) and its downstream pathways. There is notable crosstalk between the SIRT1 and NF-κB pathways, and these pathways, which play an essential role in the development of RA, are unexpectedly linked to the influence of resveratrol. Based on recent studies of almost all the pathways that resveratrol can affect, this review summarizes a regulatory chain of core components that cover multiple tracks. We also list the effects of resveratrol on immune cells and other subtle controls, which can help clinicians understand the known mechanism of resveratrol and better treat patients with RA.
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Affiliation(s)
- Shuyan Sheng
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Xinyi Wang
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Xin Liu
- School of pharmacy, Anhui Medical University, Hefei, China
| | - Xinyang Hu
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Yubao Shao
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Microscopic Morphological Center Laboratory, Anhui Medical University, Hefei, China
| | - Gaoyuan Wang
- First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Deshen Mao
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Conghan Li
- First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Bangjie Chen
- First Affiliated Hospital of Anhui Medical University, Hefei, China
- Anhui Provincial Laboratory of Inflammatory and Immune Diseases, Hefei, China
- *Correspondence: Bangjie Chen, ; Xiaoyu Chen,
| | - Xiaoyu Chen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Microscopic Morphological Center Laboratory, Anhui Medical University, Hefei, China
- *Correspondence: Bangjie Chen, ; Xiaoyu Chen,
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10
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Cao F, Huang C, Cheng J, He Z. β-arrestin-2 alleviates rheumatoid arthritis injury by suppressing NLRP3 inflammasome activation and NF- κB pathway in macrophages. Bioengineered 2021; 13:38-47. [PMID: 34787064 PMCID: PMC8805973 DOI: 10.1080/21655979.2021.2003678] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory joint disorder that inflicts damage to the joints of the hands and wrist. The aim of this study was to investigate the protective effect of β-Arrestin-2 (βArr2) on RA in vivo and in vitro. The βArr2 adenovirus (βArr2-Ad) or the control (Con-Ad) was injected into the ankle joint cavity of collagen-induced arthritis (CIA) mice. According to the results, an improvement was shown in the symptoms and pathological injury of RA after an upregulation of βArr2. Correspondingly, the inflammatory response was attenuated, as evidenced by the decreased serum pro-inflammatory cytokines levels and NF-κB pathway-related proteins. Nucleotide-binding domain leucine-rich repeat and pyrin domain containing receptor 3 (NLRP3) inflammasome activation was inhibited in CIA mice treated with βArr2-Ad injection, as reflected by the diminished IL-18 level and declined protein levels of inflammasome components in the ankle joint. Likewise, the anti-inflammatory effect of macrophages was also validated by in vitro experiments. In summary, βArr2 effectively ameliorates ankle inflammation in CIA mice via NF-κB/NLRP3 inflammasome, providing theoretical and clinical basis for RA therapy.
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Affiliation(s)
- Feng Cao
- Department of Orthopedics, No. 906 Hospital of Joint Logistic Support Force of PLA, Ningbo, Zhejiang, China
| | - Cheng Huang
- Department of Orthopedics, No. 906 Hospital of Joint Logistic Support Force of PLA, Ningbo, Zhejiang, China
| | - Jiwei Cheng
- Department of Orthopedics, No. 906 Hospital of Joint Logistic Support Force of PLA, Ningbo, Zhejiang, China
| | - Zhaochun He
- Department of Rheumatoid Immunity, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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11
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Rababa'h AM, Hussein SA, Khabour OF, Alzoubi KH. The Protective Effect of Cilostazol in Genotoxicity Induced by Methotrexate in Human Cultured Lymphocytes. Curr Mol Pharmacol 2021; 13:137-143. [PMID: 31702497 DOI: 10.2174/1874467212666191023120118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/13/2019] [Accepted: 10/15/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Methotrexate is an antagonist of folic acid that has been shown to be genotoxic to healthy body cells via induction of oxidative stress. Cilostazol is a phosphodiesterase III inhibitor and a potent antioxidant drug. OBJECTIVE To evaluate the potential protective effect of cilostazol on methotrexate genotoxicity. METHODS The genotoxic effect of methotrexate by measuring the frequency of chromosomal aberrations (CAs) and sister chromatid exchanges (SCEs) in human cultured lymphocytes was studied. RESULTS Methotrexate significantly increased the frequency of CAs and SCEs (p < 0.0001) as compared to control cultures. This chromosomal damage induced by methotrexate was considerably decreased by pretreatment of the cells with cilostazol (P < 0.01). Moreover, the results showed that methotrexate resulted in a notable reduction (P < 0.01) in cells kinetic parameters, the mitotic index (MI) and the proliferative index (PI). Similarly, cilostazol significantly reduced the mitotic index, which could be related to the anti-proliferative effect (P < 0.01). CONCLUSION Methotrexate is genotoxic, and cilostazol could prevent the methotrexate-induced chromosomal damage with no modulation of methotrexate-induced cytotoxicity.
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Affiliation(s)
- Abeer M Rababa'h
- Department of Clinical Pharmacy, College of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Samah A Hussein
- Department of Clinical Pharmacy, College of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Omar F Khabour
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Karem H Alzoubi
- Department of Clinical Pharmacy, College of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
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12
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Chemokine Receptor 5 Antagonism Causes Reduction in Joint Inflammation in a Collagen-Induced Arthritis Mouse Model. Molecules 2021; 26:molecules26071839. [PMID: 33805933 PMCID: PMC8036613 DOI: 10.3390/molecules26071839] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 01/13/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease mainly affecting the synovial joints. A highly potent antagonist of C-C chemokine receptor 5 (CCR5), maraviroc (MVC), plays an essential role in treating several infectious diseases but has not yet been evaluated for its potential effects on RA development. This study focused on evaluating the therapeutic potential of MVC on collagen-induced arthritis (CIA) in DBA/1J mice. Following CIA induction, animals were treated intraperitoneally with MVC (50 mg/kg) daily from day 21 until day 35 and evaluated for clinical score and histopathological changes in arthritic inflammation. We further investigated the effect of MVC on Th9 (IL-9, IRF-4, and GATA3) and Th17 (IL-21R, IL-17A, and RORγT) cells, TNF-α, and RANTES in CD8+ T cells in the spleen using flow cytometry. We also assessed the effect of MVC on mRNA and protein levels of IL-9, IL-17A, RORγT, and GATA3 in knee tissues using RT-PCR and western blot analysis. MVC treatment in CIA mice attenuated the clinical and histological severity of inflammatory arthritis, and it substantially decreased IL-9, IRF4, IL-21R, IL-17A, RORγT, TNF-α, and RANTES production but increased GATA3 production in CD8+ T cells. We further observed that MVC treatment decreased IL-9, IL-17A, and RORγt mRNA and protein levels and increased those of GATA3. This study elucidates the capacity of MVC to ameliorate the clinical and histological signs of CIA by reducing pro-inflammatory responses, suggesting that MVC may have novel therapeutic uses in the treatment of RA.
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Motta NAV, Autran LJ, Brazão SC, Lopes RDO, Scaramello CBV, Lima GF, Brito FCFD. Could cilostazol be beneficial in COVID-19 treatment? Thinking about phosphodiesterase-3 as a therapeutic target. Int Immunopharmacol 2021; 92:107336. [PMID: 33418248 PMCID: PMC7768212 DOI: 10.1016/j.intimp.2020.107336] [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: 08/23/2020] [Revised: 11/25/2020] [Accepted: 12/22/2020] [Indexed: 01/25/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19) that has emerged and rapidly spread across the world. The COVID-19 severity is associated to viral pneumonia with additional extrapulmonary complications. Hyperinflammation, dysfunctional immune response and hypercoagulability state are associated to poor prognosis. Therefore, the repositioning of multi-target drugs to control the hyperinflammation represents an important challenge for the scientific community. Cilostazol, a selective phosphodiesterase type-3 inhibitor (PDE-3), is an antiplatelet and vasodilator drug, that presents a range of pleiotropic effects, such as antiapoptotic, anti-inflammatory, antioxidant, and cardioprotective activities. Cilostazol also can inhibit the adenosine uptake, which enhances intracellular cAMP levels. In the lungs, elevated cAMP promotes anti-fibrotic, vasodilator, antiproliferative effects, as well as mitigating inflammatory events. Interestingly, a recent study evaluated antiplatelet FDA-approved drugs through molecular docking-based virtual screening on viral target proteins. This study revealed that cilostazol is a promising drug against COVID-19 by inhibiting both main protease (Mpro) and Spike glycoprotein, reinforcing its use as a promising therapeutic approach for COVID-19. Considering the complexity associated to COVID-19 pathophysiology and observing its main mechanisms, this article raises the hypothesis that cilostazol may act on important targets in development of the disease. This review highlights the importance of drug repurposing to address such an urgent clinical demand safely, effectively and at low cost, reinforcing the main pharmacological actions, to support the hypothesis that a multi-target drug such as cilostazol could play an important role in the treatment of COVID-19.
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Affiliation(s)
- Nadia Alice Vieira Motta
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil
| | - Lis Jappour Autran
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil
| | - Stephani Correia Brazão
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil
| | - Rosane de Oliveira Lopes
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil
| | - Christianne Brêtas Vieira Scaramello
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil
| | - Gabriel Ferreira Lima
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil
| | - Fernanda Carla Ferreira de Brito
- Laboratory of Experimental Pharmacology (LAFE), Department of Physiology and Pharmacology, Biomedical Institute, Fluminense Federal University (UFF), Room 204-A, 24420-210 Niterói, RJ, Brazil,Corresponding author
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Two transcription factors PU.1a and PU.1b have different functions in the immune system of teleost ayu. Mol Immunol 2021; 133:1-13. [PMID: 33610121 DOI: 10.1016/j.molimm.2021.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/02/2021] [Accepted: 02/04/2021] [Indexed: 01/08/2023]
Abstract
Transcription factor PU.1 is a regulator of macrophage function, however, the specific function of PU.1 in teleost monocytes/macrophages (MO/MФ) remains unknown. We determined the cDNA sequence of two PU.1 genes from ayu (Plecoglossus altivelis; PaPU.1a and PaPU.1b). Sequence comparisons showed that PaPU.1 were most closely related to the PU.1 of rainbow smelt (Osmerus mordax). The PU.1 transcripts were mainly expressed in the spleen, and their expression was altered in various tissues upon infection with Vibrio anguillarum. PaPU.1a and PaPU.1b proteins were upregulated in MO/MФ, after infection. RNA interference was employed to knockdown PaPU.1a and PaPU.1b to investigate their function in MO/MФ. The expression of inflammatory cytokines was regulated by PaPU.1a, but not PaPU.1b, in ayu MO/MФ upon V. anguillarum infection. Both PaPU.1a and PaPU.1b knockdown lowered the phagocytic activity of MO/MФ. Furthermore, PaPU.1b knockdown attenuated MO/MФ bacterial killing capability. Our results indicate that two PaPU.1 genes differentially modulate the immune response in ayu MO/MФ against bacterial infection.
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15
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Tsai MH, Chi MC, Hsu JF, Lee IT, Lin KM, Fang ML, Lee MH, Lee CW, Liu JF. Urban Particulate Matter Enhances ROS/IL-6/COX-II Production by Inhibiting MicroRNA-137 in Synovial Fibroblast of Rheumatoid Arthritis. Cells 2020; 9:cells9061378. [PMID: 32498294 PMCID: PMC7348867 DOI: 10.3390/cells9061378] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/27/2020] [Accepted: 05/30/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) has been associated with air pollution, possibly due to the augmentation of inflammatory effects. In this study, we aimed to determine the roles of inflammatory pathways and microRNA involved in the pathogenesis of RA fibroblast-like synoviocytes (FLS) inflammation induced by particulate matter. METHODS The inflammatory mediators, messenger RNAs, microRNAs and their interrelationships were investigated using western blotting, QPCR, ELISA and immunohistochemistry. RESULTS Particulate matter (PMs) induced an increase in the expression of interleukin-6 (IL-6) and cyclooxygenase-II (COX-II) in RA-FLS and microRNA-137 was found definitely to mediate the inflammatory pathways. PMs-induced generation of reactive oxygen species (ROS) in RA-FLS was attenuated by pretreatment with antioxidants. Nox-dependent ROS generation led to phosphorylation of ERK1/2, p38 and JNK, followed by downregulation of microRNA-137. In vivo studies, the joints of rats exposed to PMs revealed synovial fibroblast inflammation under pathologic examination and the expressions of IL-6 and COX-II were obviously increased. PMs exposure results in activated ROS-mediated mitogen-activated protein kinase (MAPK) signaling pathways and cause increased IL-6 and COX-II through downregulation of hsa-miRNA-137, which lead to inflammation and RA exacerbation. CONCLUSIONS microRNA-137 plays an important role in PMs-induced RA acute exacerbation through MAPK signaling pathways and IL-6/COX-II activation. Targeting these mechanisms can potentially be used to develop new therapeutic strategies and prevention of RA inflammation in the future.
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Affiliation(s)
- Ming-Horng Tsai
- Department of Pediatrics, Division of Neonatology and Pediatric Hematology/Oncology, Chang Gung Memorial Hospital, Yunlin 638, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Miao-Ching Chi
- Chronic Disease and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City, Chiayi County 613, Taiwan;
- Division of Pulmonary and Critical Care Medicine, Chiayi Chang Gung Memorial Hospital, Puzi City, Chiayi County 613, Taiwan
- Department of Respiratory Care, Chang Gung University of Science and Technology, Puzi City, Chiayi County 613, Taiwan
| | - Jen-Fu Hsu
- Department of Pediatrics, Division of Neonatology, Chang Gung Memorial Hospital, Lin-Kou, New Taipei City 333, Taiwan;
| | - I-Ta Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei City 111, Taiwan;
| | - Ko-Ming Lin
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Puzi City, Chiayi County 613, Taiwan;
| | - Mei-Ling Fang
- Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University, Kaohsiung 83347, Taiwan;
- Super Micro Research and Technology Center, Cheng Shiu University, Kaohsiung 83347, Taiwan
| | - Ming-Hsueh Lee
- Division of Neurosurgery, Department of Surgery, Chang Gung Memorial Hospital, Chia-Yi 61363, Taiwan;
| | - Chiang-Wen Lee
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Puzi City, Chiayi County 61363, Taiwan
- Department of Nursing, Division of Basic Medical Sciences, and Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Puzi City, Chiayi County 61363, Taiwan
- Department of Safety Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
- College of Medicine, Chang Gung University, Guishan Dist, Taoyuan City 33303, Taiwan
- Correspondence: (C.-W.L.); (J.-F.L.); Tel.: +886-4-2205-3366 (ext. 2128) (C.-W.L.); +886-2-2736-1661 (ext. 5110) (J.-F.L.); Fax: +886-4-22053764 (C.-W.L.)
| | - Ju-Fang Liu
- Translational Medicine Center, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei City 11101, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei City 11031, Taiwan
- Correspondence: (C.-W.L.); (J.-F.L.); Tel.: +886-4-2205-3366 (ext. 2128) (C.-W.L.); +886-2-2736-1661 (ext. 5110) (J.-F.L.); Fax: +886-4-22053764 (C.-W.L.)
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16
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Zhang Y, Ji T, Ma S, Wu W. RETRACTED: MLL1 promotes migration and invasion of fibroblast-like synoviocytes in rheumatoid arthritis by activating the TRIF/NF-κB signaling pathway via H3K4me3 enrichment in the TLR4 promoter region. Int Immunopharmacol 2020; 82:106220. [PMID: 32151962 DOI: 10.1016/j.intimp.2020.106220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/25/2019] [Accepted: 01/14/2020] [Indexed: 01/18/2023]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. A corrigendum for this article was previously published which corrected issues within Figure 1, as detailed here: https://www.sciencedirect.com/science/article/pii/S1567576920337887?via%3Dihub. The journal was subsequently alerted to additional issues, including an associated PubPeer comment concerning the provenance of the flow cytometry data in Figure 1B, as detailed here: https://pubpeer.com/publications/AD39B667B4ACD09C930F532D0BD985; and here https://docs.google.com/spreadsheets/d/1r0MyIYpagBc58BRF9c3luWNlCX8VUvUuPyYYXzxWvgY/edit#gid=262337249. As part of a journal investigation, the editorial team noticed that many of the Western blots contained within the article were pixelated. In addition, the published email address of the corresponding author (zhangyd78@126.com), differed from the version submitted to the journal (weiwu_drww@163.com). The journal asked the authors to provide a detailed explanation to these concerns and the associated raw data. The Authors did not respond to this request. The Editor-in-Chief assessed the case and decided to retract the article.
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Affiliation(s)
- Yandong Zhang
- Department of Rheumatology, The First Hospital of Jilin University, Changchun 130021, PR China
| | - Tiefeng Ji
- Department of Radiology, The First Hospital of Jilin University, Changchun 130021, PR China
| | - Shu Ma
- Department of Rheumatology, The First Hospital of Jilin University, Changchun 130021, PR China
| | - Wei Wu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun 130021, PR China.
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Liu H, Zhu Y, Gao Y, Qi D, Zhao L, Zhao L, Liu C, Tao T, Zhou C, Sun X, Guo F, Xiao J. NR1D1 modulates synovial inflammation and bone destruction in rheumatoid arthritis. Cell Death Dis 2020; 11:129. [PMID: 32071294 PMCID: PMC7028921 DOI: 10.1038/s41419-020-2314-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/30/2020] [Accepted: 01/30/2020] [Indexed: 12/14/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by synovial hyperplasia, pannus formation, and cartilage and bone destruction. Nuclear receptor subfamily 1 group D member 1 (NR1D1) functions as a transcriptional repressor and plays a vital role in inflammatory reactions. However, whether NR1D1 is involved in synovial inflammation and joint destruction during the pathogenesis of RA is unknown. In this study, we found that NR1D1 expression was increased in synovial tissues from patients with RA and decreased in RA Fibroblast-like synoviocytes (FLSs) stimulated with IL-1β in vitro. We showed that NR1D1 activation decreased the expression of proinflammatory cytokines and matrix metalloproteinases (MMPs), while NR1D1 silencing exerted the opposite effect. Furthermore, NR1D1 activation reduced reactive oxygen species (ROS) generation and increased the production of nuclear transcription factor E2-related factor 2 (Nrf2)-associated enzymes. Mitogen-activated protein kinase (MAPK) and nuclear factor κB (NF-κB) pathways were blocked by the NR1D1 agonist SR9009 but activated by NR1D1 silencing. NR1D1 activation also inhibited M1 macrophage polarization and suppressed osteoclastogenesis and osteoclast-related genes expression. Treatment with NR1D1 agonist SR9009 in collagen-induced arthritis (CIA) mouse significantly suppressed the hyperplasia of synovial, infiltration of inflammatory cell and destruction of cartilage and bone. Our findings demonstrate an important role for NR1D1 in RA and suggest its therapeutic potential.
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Affiliation(s)
- Hui Liu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuanli Zhu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yutong Gao
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dahu Qi
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Liming Zhao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Libo Zhao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Changyu Liu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Tenghui Tao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chuankun Zhou
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xuying Sun
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fengjing Guo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Jun Xiao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Korneev KV, Sviriaeva EN, Mitkin NA, Gorbacheva AM, Uvarova AN, Ustiugova AS, Polanovsky OL, Kulakovskiy IV, Afanasyeva MA, Schwartz AM, Kuprash DV. Minor C allele of the SNP rs7873784 associated with rheumatoid arthritis and type-2 diabetes mellitus binds PU.1 and enhances TLR4 expression. Biochim Biophys Acta Mol Basis Dis 2019; 1866:165626. [PMID: 31785408 DOI: 10.1016/j.bbadis.2019.165626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 11/08/2019] [Accepted: 11/26/2019] [Indexed: 12/19/2022]
Abstract
Toll-like receptor 4 (TLR4) is an innate immunity receptor predominantly expressed on myeloid cells and involved in the development of various diseases, many of them with complex genetics. Here we present data on functionality of single nucleotide polymorphism rs7873784 located in the 3'-untranslated region (3'-UTR) of TLR4 gene and associated with various pathologies involving chronic inflammation. We demonstrate that TLR4 3'-UTR strongly enhanced the activity of TLR4 promoter in U937 human monocytic cell line while minor rs7873784(C) allele created a binding site for transcription factor PU.1 (encoded by SPI1 gene), a known regulator of TLR4 expression. Increased binding of PU.1 further augmented the TLR4 transcription while PU.1 knockdown or complete disruption of the PU.1 binding site abrogated the effect. We hypothesize that additional functional PU.1 site may increase TLR4 expression in individuals carrying minor C variant of rs7873784 and modulate the development of certain pathologies, such as rheumatoid arthritis and type-2 diabetes mellitus.
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Affiliation(s)
- Kirill V Korneev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ekaterina N Sviriaeva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Nikita A Mitkin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alisa M Gorbacheva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Aksinya N Uvarova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Alina S Ustiugova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Oleg L Polanovsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Ivan V Kulakovskiy
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Vavilov Institute of General Genetics, Russian Academy of Sciences, 119991 Moscow, Russia; Institute of Mathematical Problems of Biology, Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Marina A Afanasyeva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anton M Schwartz
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Dmitry V Kuprash
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; Biological Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia.
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Bakheet SA, Ansari MA, Nadeem A, Attia SM, Alhoshani AR, Gul G, Al-Qahtani QH, Albekairi NA, Ibrahim KE, Ahmad SF. CXCR3 antagonist AMG487 suppresses rheumatoid arthritis pathogenesis and progression by shifting the Th17/Treg cell balance. Cell Signal 2019; 64:109395. [PMID: 31449849 DOI: 10.1016/j.cellsig.2019.109395] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 10/26/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that is characterized by uncontrolled joint inflammation and damage to bone and cartilage. Previous studies have shown that chemokine receptors have important roles in RA development, and that blocking these receptors effectively inhibits RA progression. Our study was undertaken to investigate the role of AMG487, a selective CXCR3 antagonist, in DBA/1J mice bearing collagen-induced arthritis (CIA). Following induction of CIA, animals were treated with 5 mg/kg AMG487 intraperitoneally every 48 h, starting from day 21 until day 41 and evaluated for clinical score, and histological hallmarks of arthritic inflammation. We further investigated the effect of AMG487 on Th1 (T-bet), Th17 (IL-17A, RORγt, STAT3), Th22 (IL-22), and T regulatory (Treg; Foxp3 and IL-10) cells in splenic CXCR3+ and CD4+ T cells using flow cytometry. We also assessed the effect of AMG487 on T-bet, RORγt, IL-17A, IL-22, Foxp3, and IL-10 at both mRNA and protein levels using RT-PCR and Western blot analyses of knee samples. The severity of clinical scores, and histological inflammatory damage decreased significantly in AMG487-treated compared with CIA control mice. Moreover, the percentage of Th1, Th17, and Th22 cells decreased significantly and that of Treg cells increased in AMG487-treated mice. We further observed that AMG487-treatment downregulated T-bet, IL-17A, RORγt, and IL-22, whereas it upregulated Foxp3 and IL-10 mRNA and protein levels. This study demonstrates the antiarthritic effects of AMG487 in CIA animal model and supports the development of CXCR3 antagonists as a novel strategy for the treatment of inflammatory and arthritic conditions.
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Affiliation(s)
- Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Pharmacology and Toxicology, College of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ali R Alhoshani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Gazala Gul
- Department of Pathology, College of Medicine, Yenepoya University, Mangaluru, Karnataka, India
| | - Q H Al-Qahtani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Norah A Albekairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Khalid E Ibrahim
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
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20
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Park SY, Lee YS, Lee SY, Lee SW, Hong KW, Kim CD. Multitarget-based cotreatment with cilostazol and celecoxib synergistically suppresses collagen-induced arthritis in mice by enhancing interleukin-10 expression. Int Immunopharmacol 2019; 73:461-470. [DOI: 10.1016/j.intimp.2019.05.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/16/2019] [Accepted: 05/28/2019] [Indexed: 11/27/2022]
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21
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Lee YS, Lee SY, Park SY, Lee SW, Hong KW, Kim CD. Cilostazol add-on therapy for celecoxib synergistically inhibits proinflammatory cytokines by activating IL-10 and SOCS3 in the synovial fibroblasts of patients with rheumatoid arthritis. Inflammopharmacology 2019; 27:1205-1216. [DOI: 10.1007/s10787-019-00605-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 05/11/2019] [Indexed: 12/25/2022]
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22
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Wang Q, Zhou X, Zhao Y, Xiao J, Lu Y, Shi Q, Wang Y, Wang H, Liang Q. Polyphyllin I Ameliorates Collagen-Induced Arthritis by Suppressing the Inflammation Response in Macrophages Through the NF-κB Pathway. Front Immunol 2018; 9:2091. [PMID: 30319603 PMCID: PMC6170622 DOI: 10.3389/fimmu.2018.02091] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 08/24/2018] [Indexed: 12/27/2022] Open
Abstract
Background: Rheumatoid arthritis (RA) is a chronic autoimmune disorder, characterized by an increased number of M1-like macrophages in the joints. Polyphyllin I (PPI), one of the main components in the Rhizoma of Paris polyphyllin, displays a selective inhibitory effect on various tumor cells. Here we sought to investigate the anti-rheumatoid arthritis effects and mechanisms of PPI on macrophages in vivo and in vitro. Materials and Methods:In vitro, primary bone marrow-derived macrophages (BMMs) and peritoneal elucidated macrophages (PEMs) were stimulated by lipopolysaccharide (LPS) and Interferon (IFN)-γ and then treated with PPI. We determined the degree of activation of IKKα/β and p65, two key mediators of the NF-κB-mediated inflammatory pathway, by measuring their phosphorylated forms by Western blot. The p65 nuclear localization was detected by immunofluorescent staining. Further, a NF-κB-linked luciferase reporter plasmid, as well as those expressing key mediators of the Toll-like receptor 4 pathway, such as myeloid differentiation primary response 88 (MYD88), interleukin-1 receptor (IL-1R) associated kinase (IRAK)-1, TNF receptor associated factors (TRAF)-6, Transforming growth factor-b–activated kinase 1 (TAK1) and p65, were used to identify the mechanism by which PPI achieves its inhibitory effects on macrophage-mediated inflammation. Moreover, a NF-κB inhibitor, p65-targeted siRNAs, and a p65 plasmid were further used to validate the anti-inflammatory mechanism of PPI. In vivo, PPI (1 mg/kg) was administered intragastrically one time a day for 7 weeks starting on the 42nd day after the first immunization with collagen in a collagen-induced arthritis (CIA) mouse model. Micro-computed Tomography scanning, histological examination, F4/80 and iNOS double immunofluorescent staining and CD4 immunohistochemical staining were performed to determine the effect of PPI treatment on joint structure and inflammation in this model. Results: PPI reduced the inflammatory cytokines production of PEMs stimulated by LPS/IFN-γ, inhibited the phosphorylation of IKKα/β and p65, and prevented p65 nuclear localization. The NF-κB luciferase assay showed that the target of PPI was closely related to the NF-κB pathway. Moreover, NF-κB inhibition, siRNA-mediated knockdown of p65, and p65 overexpression eliminated PPI's inhibitory effect. In addition, PPI attenuated the bone erosion and synovitis, as well as M1-like macrophage and T cell infiltration, in the ankle joint of the CIA model. Conclusion: PPI demonstrated effective amelioration of synovial inflammation in the ankle joint of CIA mice while suppressing NF-κB-mediated production of pro-inflammatory effectors in activated macrophages.
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Affiliation(s)
- Qiong Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,State Key Laboratory of Cell Biology, Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xin Zhou
- State Key Laboratory of Cell Biology, Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, China
| | - Yongjian Zhao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Jun Xiao
- State Key Laboratory of Cell Biology, Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, China
| | - Yao Lu
- State Key Laboratory of Cell Biology, Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, China
| | - Qi Shi
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
| | - Yongjun Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China.,School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hongyan Wang
- State Key Laboratory of Cell Biology, Key Laboratory of Systems Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Innovation Center for Cell Signaling Network, Shanghai, China
| | - Qianqian Liang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Spine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Key Laboratory of Theory and Therapy of Muscles and Bones, Ministry of Education (Shanghai University of Traditional Chinese Medicine), Shanghai, China
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23
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El-Abhar H, Abd El Fattah MA, Wadie W, El-Tanbouly DM. Cilostazol disrupts TLR-4, Akt/GSK-3β/CREB, and IL-6/JAK-2/STAT-3/SOCS-3 crosstalk in a rat model of Huntington's disease. PLoS One 2018; 13:e0203837. [PMID: 30260985 PMCID: PMC6160003 DOI: 10.1371/journal.pone.0203837] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/28/2018] [Indexed: 12/21/2022] Open
Abstract
Countless neurodegenerative diseases are associated with perverse multiple targets of cyclic nucleotide signalling, hastening neuronal death. Cilostazol, a phosphodiesterase-III inhibitor, exerts neuroprotective effects against sundry models of neurotoxicity, however, its role against Huntington's disease (HD) has not yet been tackled. Hence, its modulatory effect on several signalling pathways using the 3-nitropropionic acid (3-NP) model was conducted. Animals were injected with 3-NP (10 mg/kg/day, i.p) for two successive weeks with or without the administration of cilostazol (100 mg/kg/day, p.o.). Contrary to the 3-NP effects, cilostazol largely preserved striatal dopaminergic neurons, improved motor coordination, and enhanced the immunohistochemical reaction of tyrosine hydroxylase enzyme. The anti-inflammatory effect of cilostazol was documented by the pronounced reduction of the toll like receptor-4 (TLR-4) protein expression and the inflammatory cytokine IL-6, but with a marked elevation in IL-10 striatal contents. As a consequence, cilostazol reduced IL-6 downstream signal, where it promoted the level of suppressor of cytokine signalling 3 (SOCS3), while abated the phosphorylation of Janus Kinase 2 (JAK-2) and Signal transducers and activators of transcription 3 (STAT-3). Phosphorylation of the protein kinase B/glycogen synthase kinase-3β/cAMP response element binding protein (Akt/GSK-3β/CREB) cue is another signalling pathway that was modulated by cilostazol to further signify its anti-inflammatory and antiapoptotic capacities. The latter was associated with a reduction in the caspase-3 expression assessed by immunohistochemical assay. In conclusion the present study provided a new insight into the possible mechanisms by which cilostazol possesses neuroprotective properties. These intersecting mechanisms involve the interference between TLR-4, IL-6-IL-10/JAK-2/STAT-3/SOCS-3, and Akt/GSK-3β/CREB signalling pathways.
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Affiliation(s)
- Hanan El-Abhar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- * E-mail:
| | - Mai A. Abd El Fattah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Walaa Wadie
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Dalia M. El-Tanbouly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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24
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Effect of Various Agents on the Direction of THP-1 Cell Differentiation. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2018. [DOI: 10.2478/sjecr-2018-0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
The ability of physiological (1α,25-dihydroxyvitamin D3, retinoic acid) and non-physiological (various LPS) agents and their combinations to influence the direction of promonocytic THP-1 cell differentiation was studied.
The differentiating activity of the agents was evaluated by the expression and the ratio of surface receptors (TLR4, CD11b, and CD14) as well as by the change in THP-1 cell phagocytic activity of different degree of differentiation by Flow cytometry.
The THP-1 cell differentiation by VD3 was shown to lead probably to the formation of classical monocytes.
Summarizing we can conclude that VD3 induces the THP-1 cells differentiation with the formation of classical monocytes and the sequence of 1α, 25-dihydroxyvitamin D3 and non-toxic LPS R. capsulatus PG causes the THP-1 cells differentiation with the formation of inflammatory or intermediate monocytes.
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25
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Macrophage polarization, inflammatory signaling, and NF-κB activation in response to chemically modified titanium surfaces. Colloids Surf B Biointerfaces 2018; 166:269-276. [PMID: 29604569 DOI: 10.1016/j.colsurfb.2018.03.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 03/12/2018] [Accepted: 03/20/2018] [Indexed: 11/23/2022]
Abstract
Functionalization of titanium devices with various bioactive molecules enhances many of their properties as implants, including biocompatibility, which is typically assessed by macrophage activation and inflammation. However, functionalization requires prior introduction of reactive groups, to which bioactive agents can then be grafted. Thus, we investigated the inflammatory properties of titanium pretreated with NaOH, titanium pretreated with NaOH and then with 3-aminopropyl triethoxysilane, and titanium pretreated with dopamine. Inflammation, macrophage polarization, and activation of NF-κB signaling were assessed by real-time PCR and western blotting. The data demonstrate that silanized titanium is the least inflammatory, and promotes macrophage M2 polarization with modest engagement of the NF-κB signaling pathway. Importantly, silanization introduces a reactive amino group, providing more opportunities for further functionalization.
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26
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Rong H, Zhao Z, Feng J, Lei Y, Wu H, Sun R, Zhang Z, Hou B, Zhang W, Sun Y, Gu X, Ma Z, Liu Y. The effects of dexmedetomidine pretreatment on the pro- and anti-inflammation systems after spinal cord injury in rats. Brain Behav Immun 2017; 64:195-207. [PMID: 28302458 DOI: 10.1016/j.bbi.2017.03.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/07/2017] [Accepted: 03/10/2017] [Indexed: 12/28/2022] Open
Abstract
Excessive inflammatory responses play important roles in the aggravation of secondary damage to an injured spinal cord. Dexmedetomidine (DEX), a selective α2-adrenoceptor agonist, has recently been implied to be neuroprotective in clinical anesthesia, but the underlying mechanism is elusive. As signaling through Toll-like receptor 4 (TLR4) and nicotinic receptors (nAChRs, notably α7nAChR) play important roles in the pro- and anti-inflammation systems in the central nervous system, respectively, this study investigated whether and how they were modulated by DEX pretreatment in a rat model of spinal cord compression. The model was used to mimic perioperative compressive spinal cord injury (SCI) during spinal correction. DEX preconditioning improved locomotor scores after SCI, which was accompanied by increased α7nAChR and acetylcholine (Ach, an endogenous ligand of α7nAChR) expression as well as PI3K/Akt activation. However, there was a decrease in Ly6h (a negative regulator for α7nAChR trafficking), TLR4, PU.1 (a critical transcriptional regulator of TLR4), HMGB1 (an endogenous ligand of TLR4), and caspase 3-positive cells, which was prevented by intrathecal preconditioning with antagonists of either α2R, α7nAChR or PI3K/Akt. In addition, application of an α7nAChR agonist produced effects similar to those of DEX after SCI, while application of an α7nAChR antagonist reversed these effects. Furthermore, both α7nAChR and TLR4 were mainly co-expressed in NeuN-positive cells of the spinal ventral horn, but not in microglia or astrocytes after SCI. These findings imply that the α2R/PI3K/Akt/Ly6h and α7nAChR/PI3K/Akt/PU.1 cascades are required for upregulated α7nAChR and downregulated TLR4 expression by DEX pretreatment, respectively, which provided a unique insight into understanding DEX-mediated neuroprotection.
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Affiliation(s)
- Hui Rong
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Zhibin Zhao
- Department of Anesthesiology, The First People's Hospital of Lianyungang City, Lianyungang, China
| | - Jiying Feng
- Department of Anesthesiology, The First People's Hospital of Lianyungang City, Lianyungang, China
| | - Yishan Lei
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Hao Wu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Rao Sun
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Zuoxia Zhang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Bailing Hou
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Wei Zhang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - YuE Sun
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Xiaoping Gu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Zhengliang Ma
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China.
| | - Yue Liu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing, Jiangsu, China.
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Wu R, Long L, Chen Q, Wu X, Zhu J, Zhou B, Cheng J. Effects of Tim-3 silencing on the viability of fibroblast-like synoviocytes and lipopolysaccharide-induced inflammatory reactions. Exp Ther Med 2017; 14:2721-2727. [PMID: 28962218 DOI: 10.3892/etm.2017.4819] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 05/16/2017] [Indexed: 12/19/2022] Open
Abstract
The objective of the present study was to investigate the effects of Tim-3 silencing on cell viability and lipopolysaccharide (LPS)-induced inflammatory reactions in fibroblast-like synoviocytes (FLS). T-cell immunoglobulin mucin domain molecule (Tim)-3 expression in FLS obtained from patients with rheumatoid arthritis (RA) and normal controls were detected by western blot analysis and reverse transcription-polymerase chain reaction (RT-PCR). Small interfering (si)RNA was transfected using Lipofectamine® 2000 to decrease Tim-3 expression. Following transfection, FLS were stimulated by LPS. An MTT assay, RT-PCR and western blot analysis were performed to measure cell viability, Toll-like receptor 4 (TLR4) signaling pathway-related protein expression and inflammatory cytokine release, respectively. The results of the present study indicated that Tim-3 expression was increased in FLS from patients with RA compared with FLS from healthy controls. Transfection of Tim-3 siRNA significantly decreased Tim-3 expression in FLS from patients with RA. Notably, Tim-3 silencing decreased FLS cell viability. Following stimulation with LPS, cell viability and the expression of TLR4, myeloid differentiation protein gene 88 (MyD88) and nuclear factor-κB (NF-κB) p65 were enhanced in FLS. By contrast, Tim-3 silencing attenuated LPS-induced cell proliferation and the expression of TLR4, MyD88 and NF-κB p65. In addition, LPS significantly increased levels of cytokines in the supernatant, including tumor necrosis factor-α, interferon-γ and interleukin-6 (P<0.01). By contrast, Tim-3 silencing significantly decreased LPS-induced cytokine release (P<0.01). However, Tim-3 silencing did not affect TLR4, MyD88 and NF-κB p65 expression and the release of cytokines in cells that did not undergo treatment with LPS. Therefore, the results of the present study indicate that Tim-3 silencing decreases the viability of FLS in RA and attenuates the LPS-induced inflammatory reaction.
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Affiliation(s)
- Rui Wu
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Li Long
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Qiqi Chen
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Xiaodan Wu
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Jing Zhu
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Bin Zhou
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Jia Cheng
- Department of Rheumatology and Immunology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
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28
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Liu Q, Xiao XH, Hu LB, Jie HY, Wang Y, Ye WC, Li MM, Liu Z. Anhuienoside C Ameliorates Collagen-Induced Arthritis through Inhibition of MAPK and NF-κB Signaling Pathways. Front Pharmacol 2017; 8:299. [PMID: 28603496 PMCID: PMC5445104 DOI: 10.3389/fphar.2017.00299] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 05/10/2017] [Indexed: 12/15/2022] Open
Abstract
Anemone flaccida Fr. Schmidt (Ranunculaceae) (Di Wu in Chinese) is used to treat punch injuries and rheumatoid arthritis (RA). Our previous report has shown that crude triterpenoid saponins from Anemone flaccida exhibited anti-arthritic effects on type II collagen-induced arthritis in rats. Furthermore, anhuienoside C (AC), a saponin compound isolated from A. flaccida, was observed to suppress the nitric oxide production in lipopolysaccharide (LPS)-treated macrophage RAW 264.7 cells. In this study, we examined the effects of AC on the prevention and treatment of collagen-induced arthritis in a mouse model and evaluated the potential mechanisms involved. We observed that oral administration of AC significantly suppressed the paw swelling and arthritic score, decreased the body weight loss, and decreased the spleen index. Improvement in the disease severity was accompanied by the reduction of cluster of differentiation 68 (CD68)-positive cells in the ankle joint and inhibition of the pro-inflammatory cytokine tumor necrosis factor alpha (TNF-α) in the synovium of the joint. Mechanistic studies indicated that AC exerted its anti-inflammatory activity by inhibiting the mRNA expression levels of inducible nitric oxide synthase, cyclooxygenase-2, TNF-α, interleukin (IL)-1β, and IL-6 and by suppressing the production of inflammatory cytokines such as TNF-α, IL-1β, and IL-6 in LPS-treated RAW 264.7 cells. AC also blocked the LPS-induced activation of the extracellular signal-regulated kinase, c-Jun N-terminal kinase, and p38 mitogen-activated protein kinase pathways. Additionally, the LPS-induced activation of nuclear factor kappa-B (NF-κB) was significantly suppressed by AC treatment, as indicated by down-regulation of TLR4 and inhibition of the nuclear translocation of NF-κB p65 and by activation and degradation of the inhibitor of kappa B. These findings indicated that AC has a great potential to be developed as a therapeutic agent for human RA.
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Affiliation(s)
- Qing Liu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan UniversityGuangzhou, China.,College of Pharmacy, Xiangnan UniversityChenzhou, China
| | - Xu-Hui Xiao
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan UniversityGuangzhou, China
| | - Liu-Bing Hu
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan UniversityGuangzhou, China
| | - Hui-Yang Jie
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan UniversityGuangzhou, China
| | - Ying Wang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan UniversityGuangzhou, China.,College of Pharmacy, Jinan UniversityGuangzhou, China
| | - Wen-Cai Ye
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan UniversityGuangzhou, China
| | - Man-Mei Li
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan UniversityGuangzhou, China
| | - Zhong Liu
- Guangzhou Jinan Biomedicine Research and Development Center, Guangdong Provincial Key Laboratory of Bioengineering Medicine, College of Life Science and Technology, Jinan UniversityGuangzhou, China
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Umazume A, Kezuka T, Matsuda R, Usui Y, Takahashi H, Yamakawa N, Yashiro T, Nishiyama C, Goto H. Role of PU.1 Expression as an Inflammatory Marker in Experimental Autoimmune Uveoretinitis. Ocul Immunol Inflamm 2017; 26:951-963. [PMID: 28448751 DOI: 10.1080/09273948.2017.1299867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE PU.1 is an Ets family transcription factor, which is essential for the development of immune system through generation of myeloid and lymphoid lineages. In this study, we investigated PU.1 expression in the retina of mice with experimental autoimmune uveoretinitis (EAU) and the association between PU.1 expression level and inflammation in EAU. METHODS IRBP 1-20 peptide-immunized mice were used. Quantitative PCR, ELISA analysis, cytometric bead array (CBA), assay and immunostaining were conducted using ocular tissues and lymph nodes. RESULTS Quantitative PCR showed significant increases in mRNA levels of PU.1 in the retina at the peak of inflammation. Immunostaining of retina flat mounts revealed that most PU.1-positive cells were co-stained with anti-CD11c and anti-F4/80 antibodies. PU.1 knockdown in lymph node cells significantly suppressed IRBP-stimulated IFN-γ production measured by ELISA and IL-2 production measured by CBA. CONCLUSION PU.1 may play crucial roles in the development and progression of inflammation in EAU.
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Affiliation(s)
- Akihiko Umazume
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan.,b Department of Biological Science and Technology , Faculty of Industrial Science and Technology, Tokyo University of Science , Katsushika-ku , Tokyo , Japan
| | - Takeshi Kezuka
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan
| | - Ryusaku Matsuda
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan
| | - Yoshihiko Usui
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan
| | - Hiroki Takahashi
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan
| | - Naoyuki Yamakawa
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan
| | - Takuya Yashiro
- b Department of Biological Science and Technology , Faculty of Industrial Science and Technology, Tokyo University of Science , Katsushika-ku , Tokyo , Japan
| | - Chiharu Nishiyama
- b Department of Biological Science and Technology , Faculty of Industrial Science and Technology, Tokyo University of Science , Katsushika-ku , Tokyo , Japan
| | - Hiroshi Goto
- a Department of Ophthalmology , Tokyo Medical University , Shinjuku-ku , Tokyo , Japan
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Liu C, Wang M, Sun W, Cai F, Geng S, Su X, Shi Y. PU.1 serves a critical role in the innate defense against Aspergillus fumigatus via dendritic cell-associated C-type lectin receptor-1 and toll-like receptors-2 and 4 in THP-1-derived macrophages. Mol Med Rep 2017; 15:4084-4092. [PMID: 28440496 PMCID: PMC5436209 DOI: 10.3892/mmr.2017.6504] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 02/10/2017] [Indexed: 02/07/2023] Open
Abstract
Aspergillus fumigatus (A. fumigatus) is one of the most common fungal pathogens of invasive pulmonary aspergillosis (IPA), which may be life threatening in immunocompromised individuals. The dendritic cell-associated C-type lectin receptor (Dectin-1), toll-like receptor (TLR)-2 and TLR-4 are major pattern recognition receptors in alveolar macrophages that recognize A. fumigatus components. The PU.1 transcription factor is known to be important for the transcriptional control of these three receptors in mature macrophages. The present study investigated whether alterations of PU.1 expression may affect the innate defense against A. fumigatus in the human monocyte THP-1 cell line. THP-1-derived macrophages were transduced with PU.1 adenoviral vectors and transfected with PU.1 small interfering RNA, and the mRNA and protein expression levels of Dectin-1, TLR-2 and TLR-4 were measured. In addition, the levels of tumor necrosis factor (TNF)-α and interleukin (IL)-1β were ascertained, and fungal phagocytosis and killing were assessed. The results demonstrated that overexpression of PU.1 by recombinant adenoviral vectors resulted in a significant upregulation of Dectin-1, TLR-2 and TLR-4 at the transcriptional and translational levels. In response to A. fumigatus stimulation, PU.1 overexpression increased TNF-α and IL-1β production. In addition, Dectin-1, TLR-2 and TLR-4 upregulation may have enhanced the phagocytosis and killing ability of THP-1-derived macrophages. As expected, silencing of PU.1 led to downregulation of Dectin-1, TLR-2, TLR-4 and the expression of pro-inflammatory cytokines, as well as decreased phagocytosis and the killing ability of THP1-derived macrophages. In conclusion, the results indicate that PU.1 may be a critical factor for the innate defense against A. fumigatus, and may therefore be a potential target for the prophylaxis and treatment of IPA.
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Affiliation(s)
- Chenyang Liu
- Graduate School, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Min Wang
- Department of Respiratory Medicine, Shanghai First People's Hospital, Shanghai 200080, P.R. China
| | - Wenkui Sun
- Department of Respiratory and Critical Care Medicine, Jinling Hospital Affiliated to Southern Medical University, Nanjing, Jiangsu 210002, P.R. China
| | - Feng Cai
- Medical School of Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Shen Geng
- Graduate School, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xin Su
- Department of Respiratory and Critical Care Medicine, Jinling Hospital Affiliated to Southern Medical University, Nanjing, Jiangsu 210002, P.R. China
| | - Yi Shi
- Graduate School, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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31
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Zasłona Z, Scruggs AM, Peters-Golden M, Huang SK. Protein kinase A inhibition of macrophage maturation is accompanied by an increase in DNA methylation of the colony-stimulating factor 1 receptor gene. Immunology 2016; 149:225-37. [PMID: 27353657 DOI: 10.1111/imm.12641] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/17/2016] [Accepted: 06/27/2016] [Indexed: 01/21/2023] Open
Abstract
Macrophage colony-stimulating factor 1 (CSF-1) plays a critical role in the differentiation of mononuclear phagocytes from bone marrow precursors, and maturing monocytes and macrophages exhibit increased expression of the CSF-1 receptor, CSF1R. The expression of CSF1R is tightly regulated by transcription factors and epigenetic mechanisms. We previously showed that prostaglandin E2 and subsequent activation of protein kinase A (PKA) inhibited CSF1R expression and macrophage maturation. Here, we examine the DNA methylation changes that occur at the Csf1r locus during macrophage maturation in the presence or absence of activated PKA. Murine bone marrow cells were matured to macrophages by incubating cells with CSF-1-containing conditioned medium for up to 6 days in the presence or absence of the PKA agonist 6-bnz-cAMP. DNA methylation of Csf1r promoter and enhancer regions was assayed by bisulphite pyrosequencing. DNA methylation of Csf1r decreased during normal macrophage maturation in concert with an increase in Csf1r mRNA expression. Treatment with the PKA agonist inhibited Csf1r mRNA and protein expression, and increased DNA methylation at the Csf1r promoter. This was associated with decreased binding of the transcription factor PU.1 to the Csf1r promoter. Treatment with the PKA agonist inhibited the responsiveness of macrophages to CSF-1. Levels of endogenous PKA activity decreased during normal macrophage maturation, suggesting that attenuation of this signalling pathway contributes to the increase in CSF1R expression during macrophage maturation. Together, these results demonstrate that macrophage maturation is accompanied by Csf1r hypomethylation, and illustrates for the first time the ability of PKA to increase Csf1r DNA methylation.
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Affiliation(s)
- Zbigniew Zasłona
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Anne M Scruggs
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Marc Peters-Golden
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Steven K Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
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SIRT1 inhibits differentiation of monocytes to macrophages: amelioration of synovial inflammation in rheumatoid arthritis. J Mol Med (Berl) 2016; 94:921-31. [DOI: 10.1007/s00109-016-1402-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 02/15/2016] [Accepted: 02/23/2016] [Indexed: 12/15/2022]
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Takaguri A, Morimoto M, Imai SI, Satoh K. Cilostazol inhibits interleukin-1-induced ADAM17 expression through cAMP independent signaling in vascular smooth muscle cells. Cell Biol Int 2015; 40:269-76. [PMID: 26514426 DOI: 10.1002/cbin.10559] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 10/28/2015] [Indexed: 02/05/2023]
Abstract
Increased A disintegrin and metalloprotease 17 (ADAM17) expression in vascular smooth muscle cells (VSMC) is implicated in the development of cardiovascular diseases including atherosclerosis and hypertension. Although cilostazol, type III phosphodiesterase (PDE III) inhibitor, has recently been found to inhibit VSMC proliferation, the mechanisms remain largely unclear. Here, we hypothesized that cilostazol regulates the ADAM17 expression in VSMC. In cultured VSMC, interleukin (IL)-1α and IL-1β significantly increased ADAM17 expression. MEK inhibitor U0126, NF-κB inhibitor BAY-11-7085, and siRNA targeting p65/RelA significantly inhibited IL-1α or IL-β-induced ADAM17 expression. Cilostazol significantly inhibited IL-1α or IL-1β-induced extracellular signal-regulated kinase (ERK) phosphorylation and ADAM17 expression. Unexpectedly, cilostamide, dibutryl cAMP, and forskolin did not affect IL-1-induced ADAM17 expression. Our results clearly demonstrated that IL-1 induces ADAM17 expression through ERK/NF-κB activation in VSMCs. Moreover, the inhibitory effects of cilostazol on IL-1-induced ADAM17 expression may be independent of the cAMP signaling pathway in VSMC. These novel findings may provide important clues to understanding the expression mechanisms of ADAM17 and the inhibitory mechanisms of cilostazol in VSMC proliferation.
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Affiliation(s)
- Akira Takaguri
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Mayumi Morimoto
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Shin-Ichi Imai
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Kumi Satoh
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
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Suppression of RANKL-induced osteoclast differentiation by cilostazol via SIRT1-induced RANK inhibition. Biochim Biophys Acta Mol Basis Dis 2015; 1852:2137-44. [DOI: 10.1016/j.bbadis.2015.07.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/27/2015] [Accepted: 07/08/2015] [Indexed: 11/18/2022]
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35
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Julià A, Rodríguez J, Fernández-Sueiro JL, Gratacós J, Queiró R, Montilla C, Torre-Alonso JC, Pérez-Venegas JJ, Manrique-Arija S, Muñoz-Fernández S, González C, Roig D, Zarco P, Erra A, Castañeda S, García A, Salvador G, Díaz-Torne C, Blanco R, Domínguez AW, Mosquera JA, Vela P, Tornero J, Sánchez-Fernández S, Corominas H, Ramírez J, Ávila G, Alonso A, Tortosa R, López-Lasanta M, Cañete JD, Marsal S. PDE3A-SLCO1C1 locus is associated with response to anti-tumor necrosis factor therapy in psoriatic arthritis. Pharmacogenomics 2014; 15:1763-1769. [DOI: 10.2217/pgs.14.125] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aim: Variation at PDE3A-SLCO1C1 locus has been recently associated with the response to anti-TNF therapy in rheumatoid arthritis. We undertook the present study to determine whether PDE3A-SLCO1C1 is also associated with the response to anti-TNF therapy in psoriatic arthritis. Patients & methods: Genomic DNA was obtained from 81 psoriatic arthritis patients that had been treated with anti-TNF therapy. PDE3A-SLCO1C1 SNP rs3794271 was genotyped using Taqman realt-time PCR. The clinical response to anti-TNF therapy was measured as the change from baseline in the level of disease activity according to the DAS28 score. Results: A significant association between rs3794271 and anti-TNF response in psoriatic arthritis was found (beta = -0.71; p = 0.0036). Conclusion: PDE3A-SLCO1C1 locus is also associated with response to anti-TNF therapy in psoriatic arthritis. Original submitted 12 May 2014; Revision submitted 18 August 2014
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Affiliation(s)
- Antonio Julià
- Rheumatology Research Group, Vall d‘Hebron Research Institute, Barcelona, 08035, Spain
| | - Jesús Rodríguez
- Rheumatology Department, Hospital Universitari de Bellvitge, Barcelona, 08907, Spain
| | | | - Jordi Gratacós
- Rheumatology Department, Hospital Parc Taulí, Sabadell, Barcelona, 08208, Spain
| | - Rubén Queiró
- Rheumatology Department, Hospital Universitario Central de Asturias, Oviedo, 33006, Spain
| | - Carlos Montilla
- Rheumatology Department, Hospital Virgen de la Vega, Salamanca, 37007, Spain
| | | | | | - Sara Manrique-Arija
- Rheumatology Department, Hospital Instituto de Investigación Biomédica de Málaga, Hospital Regional Universitario de Málaga, Universidad de Málaga, 29009, Spain
| | | | - Carlos González
- Rheumatology Department, Hospital Universitario Gregorio Marañón, Madrid, 28009, Spain
| | - Daniel Roig
- Rheumatology Service, Hospital Moisès Broggi, Barcelona, Spain
| | - Pedro Zarco
- Rheumatology Department, Hospital Universitario Fundación Alcorcón, Madrid, 28922, Spain
| | - Alba Erra
- Rheumatology Department, Hospital Sant Rafael, Barcelona, 08035, Spain
| | - Santos Castañeda
- Rheumatology Department, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, 28006, Spain
| | - Alicia García
- Rheumatology Department, Centro de Salud Virgen de los Reyes, Sevilla, Spain
| | - Georgina Salvador
- Rheumatology Department, Hospital Mútua de Terrassa, Terrassa, Spain
| | - César Díaz-Torne
- Rheumatology Unit, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Ricardo Blanco
- Rheumatology Department, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | | | - José Antonio Mosquera
- Rheumatology Department, Complejo Hospitalario Hospital Provincial de Pontevedra, Pontevedra, Spain
| | - Paloma Vela
- Rheumatology Department, Hospital General Universitario de Alicante, Alicante, Spain
| | - Jesús Tornero
- Rheumatology Department, Hospital Universitario Guadalajara, Guadalajara, Spain
| | | | | | - Julio Ramírez
- Rheumatology Department, Hospital Clínic de Barcelona and IDIBAPS, Barcelona, 08036, Spain
| | - Gabriela Ávila
- Rheumatology Research Group, Vall d‘Hebron Research Institute, Barcelona, 08035, Spain
| | - Arnald Alonso
- Rheumatology Research Group, Vall d‘Hebron Research Institute, Barcelona, 08035, Spain
| | - Raül Tortosa
- Rheumatology Research Group, Vall d‘Hebron Research Institute, Barcelona, 08035, Spain
| | - María López-Lasanta
- Rheumatology Research Group, Vall d‘Hebron Research Institute, Barcelona, 08035, Spain
| | - Juan D Cañete
- Rheumatology Department, Hospital Clínic de Barcelona and IDIBAPS, Barcelona, 08036, Spain
| | - Sara Marsal
- Rheumatology Research Group, Vall d‘Hebron Research Institute, Barcelona, 08035, Spain
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Wang W, Kang W, Tang Q, Yao G, Chen Y, Cheng B, Kong K. Cilostazol prevents the degradation of collagen type II in human chondrocytes. Biochem Biophys Res Commun 2014; 451:352-5. [PMID: 25044117 DOI: 10.1016/j.bbrc.2014.07.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 07/12/2014] [Indexed: 02/05/2023]
Abstract
The alteration of extracellular matrix (ECM) in cartilage during the pathological development of Osteoarthritis (OA) changes the biomechanical environment of chondrocytes, which further drives the progression of the disease in the presence of inflammation. Healthy cartilage matrix mainly contains collagen type II, which is degraded by matrix metalloproteinase13 (MMP13), an important molecules responsible for joint damage in OA. Cilostazol (6-[4-(1-cyclohexyl-1H-tetrazol-5-yl)butoxy]-3,4-dihydro-2-(1H)-quinolinone) is a medication approved by the US Food and Drug Administration and used in the alleviation of the symptom of intermittent claudication in individuals with peripheral vascular disease. In this study, we reported that cilostazol is able to suppress the degradation of type II collagen in human chondrocytes induced by IL-1β. Mechanistically, cilostazol treatment leads to inhibiting the expression of IRF-1, thereby prevents the induction of MMP-13. Signal transducers and activator of transcription 1 (STAT1) has been reported to play an essential role in regulating the activation of IRF-1. Our results indicated that cilostazol suppresses the activation of STAT1 by mitigating the phosphorylation of STAT1 at Ser727 and tyrosine phosphorylation of STAT1 at position 701 (Tyr701).
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Affiliation(s)
- Weidong Wang
- Department of Spine and Joint, The 2nd Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Weibiao Kang
- Department of Ear-Nose-Throat, The 2nd Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Qiang Tang
- Department of Spine and Joint, The 2nd Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Guanfeng Yao
- Department of Spine and Joint, The 2nd Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Yuchun Chen
- Department of Spine and Joint, The 2nd Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Bizhen Cheng
- Department of Clinical Laboratory, The 1st Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Kangmei Kong
- Department of Spine and Joint, The 2nd Hospital, Shantou University Medical College, Shantou, Guangdong 515041, China.
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Jiang W, Gilkeson G. Sex Differences in monocytes and TLR4 associated immune responses; implications for systemic lupus erythematosus (SLE). ACTA ACUST UNITED AC 2014; 1:1. [PMID: 25309746 DOI: 10.7243/2055-2394-1-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
It has been shown that TLR7 and TLR9 signaling play a role in SLE pathogenesis. Our recent study revealed that estrogen receptor α knockout mice have impaired inflammatory responses to TLR3, TLR4, TLR7 and TLR9 ligand stimulation in DCs, B cells and whole spleen cells. These findings indicate that estrogen receptor mediated signaling may impact universal TLR responsiveness. Whether estrogen has a direct or indirect effect on TLR responsiveness by immune cells is not clear. There is evidence of a role of TLR4 in SLE disease pathogenesis, such as the kidney damage, the induction of CD40 and autoantibodies, the suppression of regulatory T cells, and the role of pro-inflammatory cytokines (e.g., IL-6, IL-1β, TNF-α) in SLE pathogenesis that can be induced by TLR4-mediated monocyte activation, suggesting that TLR4 and TLR4 responsiveness are also important for SLE disease. This review will focus on TLR4 responses and monocytes, which are understudied in systemic autoimmune diseases such as SLE.
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Affiliation(s)
- Wei Jiang
- Department of Microbiology and Immunology, Division of Infectious Diseases, Department of Medicine, Medical University of South Carolina
| | - Gary Gilkeson
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina
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Ishizuka F, Shimazawa M, Egashira Y, Ogishima H, Nakamura S, Tsuruma K, Hara H. Cilostazol prevents retinal ischemic damage partly via inhibition of tumor necrosis factor-α-induced nuclear factor-kappa B/activator protein-1 signaling pathway. Pharmacol Res Perspect 2013; 1:e00006. [PMID: 25505560 PMCID: PMC4184571 DOI: 10.1002/prp2.6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 08/07/2013] [Accepted: 08/08/2013] [Indexed: 12/15/2022] Open
Abstract
Cilostazol is a specific inhibitor of phosphodiesterase III and is widely used to treat ischemic symptoms of peripheral vascular disease. We evaluated the protective effects of cilostazol in a murine model of ocular ischemic syndrome in which retinal ischemia was induced by 5-h unilateral ligation of both the pterygopalatine artery (PPA) and the external carotid artery (ECA) in anesthetized mice. The effects of cilostazol (30 mg/kg, p.o.) on ischemia/reperfusion (I/R)-induced retinal damage were examined by histological, retinal vascular permeability, and electrophysiological analyses. Using immunoblotting, the protective mechanism for cilostazol was evaluated by examining antiinflammatory effects of cilostazol on the expression of tumor necrosis factors-α (TNF-α) and tight junction proteins (ZO-1 and claudin-5), and the phosphorylations of nuclear factor-kappa B (NF-κB) and c-Jun. The histological analysis revealed that I/R decreased the cell number in the ganglion cell layer (GCL) and the thicknesses of the inner plexiform layer (IPL) and inner nuclear layer (INL), and that cilostazol attenuated these decreases. Additionally, cilostazol prevented the hyperpermeability of blood vessels. Electroretinogram (ERG) measurements revealed that cilostazol prevented the I/R-induced reductions in a-, b-, and oscillatory potential (OP) wave amplitudes seen at 5 days after I/R. Cilostazol inhibited the increased expression of TNF-α and the phosphorylation levels of NF-κB and c-Jun in the retina after I/R. In addition, cilostazol prevented TNF-α-induced reduction of ZO-1 and claudin-5 expression in human retinal microvascular endothelial cells (HRMECs). These findings indicate that cilostazol may prevent I/R-induced retinal damage partly through inhibition of TNF-α-induced NF-κB/AP-1 signaling pathway.
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Affiliation(s)
- Fumiya Ishizuka
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Masamitsu Shimazawa
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Yusuke Egashira
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan ; Department of Neurosurgery, Gifu University Graduate School of Medicine Gifu, Japan
| | - Hiromi Ogishima
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Shinsuke Nakamura
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Kazuhiro Tsuruma
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation, Gifu Pharmaceutical University 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan
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Park SY, Lee SW, Lee WS, Rhim BY, Lee SJ, Kwon SM, Hong KW, Kim CD. RhoA/ROCK-dependent pathway is required for TLR2-mediated IL-23 production in human synovial macrophages: suppression by cilostazol. Biochem Pharmacol 2013; 86:1320-7. [PMID: 23973526 DOI: 10.1016/j.bcp.2013.08.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/09/2013] [Accepted: 08/13/2013] [Indexed: 01/10/2023]
Abstract
IL-23 is produced by antigen presenting cells and plays critical roles in immune response in rheumatoid arthritis. In this study, we investigated whether the RhoA/Rho-kinase pathway is required to elevate TLR2-mediated IL-23 production in synovial macrophages from patients with rheumatoid arthritis (RA), and then examined the suppressive effect of cilostazol on these pathways. IL-23 production was elevated by lipoteichoic acid (LTA), a TLR2 ligand, and this elevation was more prominent in RA macrophages than in those from peripheral blood of normal control. LTA increased the activation of RhoA in association with increased the nuclear translocation of NF-κB and its DNA-binding activity. Pretreatment of RA macrophages with the pharmacological inhibitors exoenzyme C3 (RhoA), Y27632 (Rho-kinase) or BAY11-7082 (NF-κB) inhibited IL-23 production by LTA. Inhibition of the RhoA/Rho-kinase pathway by these drugs attenuated NF-κB activation. Cilostazol suppressed the TLR2-mediated activation of RhoA, decreased NF-κB activity with down-regulated IL-23 production, and these effects were reversed by Rp-cAMPS, as an inhibitor of cAMP-dependent protein kinase. The expression of IL-23, which colocalized with CD68⁺ cells in knee joint of CIA mice, was significantly attenuated by cilostazol along with the decreased severity of arthritis. Taken together, the RhoA/Rho-kinase pathway signals TLR2-stimulated IL-23 production in synovial fluid macrophages via activation of NF-κB. Thus it is summarized that cilostazol suppresses TLR2-mediated IL-23 production by suppressing RhoA pathway via cAMP-dependent protein kinase activation.
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Affiliation(s)
- So Youn Park
- Medical Research Center for Ischemic Tissue Regeneration, Pusan National University, Gyeongnam, South Korea
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