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Neurath N, Kesting M. Cytokines in gingivitis and periodontitis: from pathogenesis to therapeutic targets. Front Immunol 2024; 15:1435054. [PMID: 39253090 PMCID: PMC11381234 DOI: 10.3389/fimmu.2024.1435054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Accepted: 08/02/2024] [Indexed: 09/11/2024] Open
Abstract
Chronic inflammatory processes in the oral mucosa and periodontitis are common disorders caused by microflora and microbial biofilms. These factors activate both the innate and adaptive immune systems, leading to the production of pro-inflammatory cytokines. Cytokines are known to play a crucial role in the pathogenesis of gingivitis and periodontitis and have been proposed as biomarkers for diagnosis and follow-up of these diseases. They can activate immune and stromal cells, leading to local inflammation and tissue damage. This damage can include destruction of the periodontal ligaments, gingiva, and alveolar bone. Studies have reported increased local levels of pro-inflammatory cytokines, such as interleukin-1beta (IL-1beta), tumor necrosis factor (TNF), IL-6, IL-17, and IL-23, in patients with periodontitis. In experimental models of periodontitis, TNF and the IL-23/IL-17 axis play a pivotal role in disease pathogenesis. Inactivation of these pro-inflammatory pathways through neutralizing antibodies, genetic engineering or IL-10 function has been demonstrated to reduce disease activity. This review discusses the role of cytokines in gingivitis and periodontitis, with particular emphasis on their role in mediating inflammation and tissue destruction. It also explores new therapeutic interventions that offer potential for research and clinical therapy in these chronic inflammatory diseases.
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Affiliation(s)
- Nicole Neurath
- Department of Oral and Cranio-Maxillofacial Surgery, Uniklinikum Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie DZI, Uniklinikum Erlangen, Erlangen, Germany
| | - Marco Kesting
- Department of Oral and Cranio-Maxillofacial Surgery, Uniklinikum Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
- Deutsches Zentrum Immuntherapie DZI, Uniklinikum Erlangen, Erlangen, Germany
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2
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Lin L, Huang Z, Jianchi M, Guo Z, Shi Z, Tang Z, Guo Q, Xiong H. Artesunate alleviates psoriasis-like dermatitis by reducing interleukin-23 expression in tumor necrosis factor-alpha-induced HaCaT cells. Clin Exp Pharmacol Physiol 2023; 50:903-913. [PMID: 37635387 DOI: 10.1111/1440-1681.13816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 06/29/2023] [Accepted: 08/06/2023] [Indexed: 08/29/2023]
Abstract
Artesunate (ART), an antimalarial drug with a multifunctional immunomodulatory effect, reduces psoriasis disease. ART can alleviate psoriasis-like dermatitis in mice but has no effect on proinflammatory cytokines in the blood. Thus, we hypothesized that the skin might be the target tissue of ART during the treatment of psoriasis. The interleukin (IL)-23/IL-17 axis has a key role in the pathogenesis of psoriasis. However, whether and how ART manipulates the IL-23 signal during psoriasis is unknown. This study found that IL-23 is highly expressed in the epidermis of psoriasis lesions and positively correlated with histological neutrophil infiltration and clinical psoriasis area and severity index (PASI) scores. Furthermore, ART inhibits the migration and cell cycle, as well as tumor necrosis factor-alpha (TNF-α)-induced IL-23 expression in HaCaT cells in a dose-dependent manner, probably through interference with the nuclear factor kappa B (NF-κB) signalling pathway. Animal experiments in imiquimod (IMQ)-induced psoriasis-like mice model also suggested that ART dose-dependently reduces IL-23 in the epidermis and ameliorates neutrophil infiltration. These findings thus provide further molecular evidence supporting ART as a promising drug for psoriasis in clinic.
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Affiliation(s)
- Lixian Lin
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhongzhou Huang
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ma Jianchi
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhixuan Guo
- Department of Dermatology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Zhenrui Shi
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zengqi Tang
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qing Guo
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Xiong
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Xu X, Zhang T, Xia X, Yin Y, Yang S, Ai D, Qin H, Zhou M, Song J. Pyroptosisin periodontitis: From the intricate interaction with apoptosis, NETosis, and necroptosis to the therapeutic prospects. Front Cell Infect Microbiol 2022; 12:953277. [PMID: 36093182 PMCID: PMC9450806 DOI: 10.3389/fcimb.2022.953277] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/18/2022] [Indexed: 11/20/2022] Open
Abstract
Periodontitis is highly prevalent worldwide. It is characterized by periodontal attachment and alveolar bone destruction, which not only leads to tooth loss but also results in the exacerbation of systematic diseases. As such, periodontitis has a significant negative impact on the daily lives of patients. Detailed exploration of the molecular mechanisms underlying the physiopathology of periodontitis may contribute to the development of new therapeutic strategies for periodontitis and the associated systematic diseases. Pyroptosis, as one of the inflammatory programmed cell death pathways, is implicated in the pathogenesis of periodontitis. Progress in the field of pyroptosis has greatly enhanced our understanding of its role in inflammatory diseases. This review first summarizes the mechanisms underlying the activation of pyroptosis in periodontitis and the pathological role of pyroptosis in the progression of periodontitis. Then, the crosstalk between pyroptosis with apoptosis, necroptosis, and NETosis in periodontitis is discussed. Moreover, pyroptosis, as a novel link that connects periodontitis with systemic disease, is also reviewed. Finally, the current challenges associated with pyroptosis as a potential therapeutic target for periodontitis are highlighted.
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Affiliation(s)
- Xiaohui Xu
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Tingwei Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xuyun Xia
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yuanyuan Yin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Sihan Yang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Dongqing Ai
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Han Qin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Mengjiao Zhou
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Jinlin Song,
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Ma S, Patel SA, Abe Y, Chen N, Patel PR, Cho BS, Abbasi N, Zeng S, Schnabl B, Chang JT, Huang WJM. RORγt phosphorylation protects against T cell-mediated inflammation. Cell Rep 2022; 38:110520. [PMID: 35294872 PMCID: PMC8982147 DOI: 10.1016/j.celrep.2022.110520] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 01/03/2022] [Accepted: 02/18/2022] [Indexed: 01/13/2023] Open
Abstract
RAR-related orphan receptor-γ (RORγt) is an essential transcription factor for thymic T cell development, secondary lymphoid tissue organogenesis, and peripheral immune cell differentiation. Serine 182 phosphorylation is a major post-translational modification (PTM) on RORγt. However, the in vivo contribution of this PTM in health and disease settings is unclear. We report that this PTM is not involved in thymic T cell development and effector T cell differentiation. Instead, it is a critical regulator of inflammation downstream of IL-1β signaling and extracellular signal regulated kinases (ERKs) activation. ERKs phosphorylation of serine 182 on RORgt serves to simultaneously restrict Th17 hyperactivation and promote anti-inflammatory cytokine IL-10 production in RORγt+ Treg cells. Phospho-null RORγtS182A knockin mice experience exacerbated inflammation in models of colitis and experimental autoimmune encephalomyelitis (EAE). In summary, the IL-1β-ERK-RORγtS182 circuit protects against T cell-mediated inflammation and provides potential therapeutic targets to combat autoimmune diseases. A balanced mucosal T cell population is essential for tissue homeostasis and wound healing post-injury and infection. In this study, Ma et al. report a surprising role for the phosphorylated transcription factor RORγt as a cell-intrinsic regulator for maintaining mucosal T cell heterogeneity and promoting inflammation resolution.
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Affiliation(s)
- Shengyun Ma
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Shefali A Patel
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Yohei Abe
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Nicholas Chen
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Parth R Patel
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Benjamin S Cho
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Nazia Abbasi
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Suling Zeng
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of Medicine, Veterans Affairs San Diego Healthcare System, San Diego, CA 92161, USA
| | - Bernd Schnabl
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of Medicine, Veterans Affairs San Diego Healthcare System, San Diego, CA 92161, USA
| | - John T Chang
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of Medicine, Veterans Affairs San Diego Healthcare System, San Diego, CA 92161, USA
| | - Wendy Jia Men Huang
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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Deng J, Lu C, Zhao Q, Chen K, Ma S, Li Z. The Th17/Treg cell balance: crosstalk among the immune system, bone and microbes in periodontitis. J Periodontal Res 2021; 57:246-255. [PMID: 34878170 DOI: 10.1111/jre.12958] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/04/2021] [Accepted: 11/08/2021] [Indexed: 12/14/2022]
Abstract
Periodontopathic bacteria constantly stimulate the host, which causes an immune response, leading to host-induced periodontal tissue damage. The complex interaction and imbalance between Th17 and Treg cells may be critical in the pathogenesis of periodontitis. Furthermore, the RANKL/RANK/OPG system plays a significant role in periodontitis bone metabolism, and its relationship with the Th17/Treg cell imbalance may be a bridge between periodontal bone metabolism and the immune system. This article reviews the literature related to the Th17/Treg cell imbalance mediated by pathogenic periodontal microbes, and its mechanism involving RANKL/RANK/OPG in periodontitis bone metabolism, in an effort to provide new ideas for the study of the immunopathological mechanism of periodontitis.
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Affiliation(s)
- Jianwen Deng
- Clinical Research Platform for Interdiscipline of Stomatology, The First Affiliated Hospital of Jinan University, Department of Stomatology, College of stomatology, Jinan University, Guangzhou, China
| | - Chunting Lu
- Science and Education Office, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Qingtong Zhao
- Clinical Research Platform for Interdiscipline of Stomatology, The First Affiliated Hospital of Jinan University, Department of Stomatology, College of stomatology, Jinan University, Guangzhou, China
| | - Kexiao Chen
- Clinical Research Platform for Interdiscipline of Stomatology, The First Affiliated Hospital of Jinan University, Department of Stomatology, College of stomatology, Jinan University, Guangzhou, China
| | - Shuyuan Ma
- Clinical Research Platform for Interdiscipline of Stomatology, The First Affiliated Hospital of Jinan University, Department of Stomatology, College of stomatology, Jinan University, Guangzhou, China
| | - Zejian Li
- Clinical Research Platform for Interdiscipline of Stomatology, The First Affiliated Hospital of Jinan University, Department of Stomatology, College of stomatology, Jinan University, Guangzhou, China.,Chaoshan Hospital, The First Affiliated Hospital of Jinan University, Jinan University, Chaozhou, China
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Luong A, Tawfik AN, Islamoglu H, Gobriel HS, Ali N, Ansari P, Shah R, Hung T, Patel T, Henson B, Thankam F, Lewis J, Mintline M, Boehm T, Tumur Z, Seleem D. Periodontitis and diabetes mellitus co-morbidity: A molecular dialogue. J Oral Biosci 2021; 63:360-369. [PMID: 34728373 DOI: 10.1016/j.job.2021.10.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) and periodontitis are two biologically linked diseases that often coexist in complex interaction. While periodontitis may lead to insulin receptor desensitization, diabetes may increase the expression of inflammatory cytokines, such as Tumor Necrosis Factor-α (TNF-α) and Interleukin 6 (IL-6), in the gingival crevicular fluid and activate osteoclasts via Receptor activator of nuclear factor kappa-Β ligand (RANK-L) production, leading to bone resorption. However, the association between the two diseases processes, where one may exacerbate the progression of the other, is unclear. In addition, both diseases have similar mechanistic themes, such as chronic inflammation and oxidative stress. This review aimed to investigate the pathophysiological and molecular mechanisms underlying T2DM and periodontitis. HIGHLIGHT Uncontrolled diabetes is often associated with severe periodontitis, measured by clinical attachment loss. Alteration in the oral microbiome composition, which may activate the host inflammatory response and lead to irreversible oxidative stress, is a common finding in both diseases. An understanding of the molecular crosstalk between the two disease processes is crucial for developing therapeutic targets that inhibit bone resorption and halt the progression of periodontitis in patients with diabetes. CONCLUSION The Oral microbiome composition in T2DM and periodontitis shifts toward dysbiosis, favoring bacterial pathogens, such as Fusobacteria and Porphyromonas species. Both conditions are marked by pro-inflammatory immune activity via the activation of Interleukin 17 (IL-17), Interleukin 1 (IL-1), TNF-α, and Nuclear Factor Kappa Beta (NF-κB). Common molecular crosstalk signaling appears to involve advanced glycation end products (AGEs) and oxidative stress. Thus, future drug targets are multifactorial, ranging from modulatory of host inflammatory response to preventing the accumulation of AGEs and oxidative free radicals.
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Affiliation(s)
- Anthony Luong
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Andy Nassif Tawfik
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Hicret Islamoglu
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Hanaa Selim Gobriel
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Nada Ali
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Pouya Ansari
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Ruchita Shah
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Tiffany Hung
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Tanusha Patel
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Bradley Henson
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Finosh Thankam
- College of Osteopathic Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Jill Lewis
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Mark Mintline
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Tobias Boehm
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Zohra Tumur
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA
| | - Dalia Seleem
- College of Dental Medicine, Western University of Health Sciences, Pomona, CA 91766-1854, USA.
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Medara N, Lenzo JC, Walsh KA, Reynolds EC, Darby IB, O'Brien-Simpson NM. A review of T helper 17 cell-related cytokines in serum and saliva in periodontitis. Cytokine 2020; 138:155340. [PMID: 33144024 DOI: 10.1016/j.cyto.2020.155340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/21/2020] [Accepted: 10/06/2020] [Indexed: 12/24/2022]
Abstract
Periodontitis is a chronic inflammatory disease with a complex underlying immunopathology. Cytokines, as molecular mediators of inflammation, play a role in all stages of disease progression. T helper 17 (Th17) cells are thought to play a role in periodontitis. Th17 cell development and maintenance requires a pro-inflammatory cytokine milieu, with many of the cytokines implicated in the pathogenesis of periodontitis. Serum and saliva are easily accessible biofluids which can represent the systemic and local environment to promote the development of Th17 cells. Here we review human clinical studies that investigate IL-1β, IL-4, IL-6, IL-10, IL-17A, IL-17F, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IFN-γ, sCD40L and TNF-α in serum and saliva in periodontitis. We highlight their putative role in the pathogenesis of periodontitis and place them within a wider context of animal and other clinical studies.
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Affiliation(s)
- Nidhi Medara
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia.
| | - Jason C Lenzo
- Centre for Oral Health Research, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia.
| | - Katrina A Walsh
- Department of Surgery, The University of Melbourne, Austin Health, Lance Townsend Building, Level 8, 145 Studley Road, Heidelberg, VIC 3084, Australia.
| | - Eric C Reynolds
- Centre for Oral Health Research, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia.
| | - Ivan B Darby
- Melbourne Dental School, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia.
| | - Neil M O'Brien-Simpson
- Centre for Oral Health Research, The University of Melbourne, 720 Swanston Street, Carlton, VIC 3053, Australia.
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Wu X, Lu M, Ding S, Zhong Q. Tripartite motif 31 alleviates IL-1ß secretion via promoting the ubiquitination of pyrin domain domains-containing protein 3 in human periodontal ligament fibroblasts. Odontology 2020; 108:424-432. [PMID: 32323100 DOI: 10.1007/s10266-020-00519-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/11/2019] [Indexed: 12/29/2022]
Abstract
Apical periodontitis (AP) is an inflammatory disease caused by bacteria infection and is regarded as a common disease in the world. In the progression of AP, the function of nucleotide-binding oligomerization, leucine-rich repeat and pyrin domain domains-containing protein 3 (NLRP3) inflammasome has been revealed. Although tripartite motif 31 (TRIM31) has been suggested to regulate many chronic inflammations by mediating NLRP3 inflammasome, such mechanism in AP remains unclear. In this study, co-treatment of human periodontal ligament fibroblasts (HPDLFs) with lipopolysaccharides (LPS) and adenosine triphosphate (ATP) were conducted to establish AP cell model. ELISA assay was used to measure the concentration of secretive interleukin 1 beta (IL-1β). In addition, the expression levels of NLRP3 after TRIM31 up- or down-regulation were detected by real-time PCR and western blot. Immunoprecipitation was used to explore the interaction between TRIM31 and NLRP3. We found that co-treatment with LPS and ATP increased the secretion of IL-1β and expression of NLRP3 in HPDLFs, while TRIM31 overexpression could reverse these effects caused by LPS and ATP. Furthermore, the interaction between TRIM31 and NLRP3 was observed, and TRIM31 was found to promote the ubiquitination of NLRP3. TRIM31 may alleviate IL-1ß secretion caused by LPS and ATP via promoting the ubiquitination of NLRP3 and may exert an influence on the development of AP.
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Affiliation(s)
- Xueying Wu
- Yongjia Clinic, Shanghai Stomatological Hospital, Fudan University, No. 458 Yongjia Road, Shanghai, 200031, China
| | - Mengmeng Lu
- Department of Oral and Maxilofacial Surgery, Shanghai Stomatological Hospital, Fudan University, 1258 Middle Fuxing Road, Shanghai, 200031, China
| | - Sheng Ding
- Department of Stomatology, Xinhua Hospital Affiliated To Shanghai Jiaotong University of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Qun Zhong
- Yongjia Clinic, Shanghai Stomatological Hospital, Fudan University, No. 458 Yongjia Road, Shanghai, 200031, China.
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Müller G, Lübow C, Weindl G. Lysosomotropic beta blockers induce oxidative stress and IL23A production in Langerhans cells. Autophagy 2019; 16:1380-1395. [PMID: 31668121 DOI: 10.1080/15548627.2019.1686728] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Oxidative stress and Th17 cytokines are important mediators of inflammation. Treatment with beta-adrenoceptor (ADRB) antagonists (beta-blockers) is associated with induction or aggravation of psoriasis-like skin inflammation, yet the underlying mechanisms are poorly understood. Herein, we identify lysosomotropic beta-blockers as critical inducers of IL23A in human monocyte-derived Langerhans-like cells under sterile-inflammatory conditions. Cytokine release was not mediated by cAMP, suggesting the involvement of ADRB-independent pathways. NFKB/NF-κB and MAPK14/p38 activation was required for propranolol-induced IL23A secretion whereas the NLRP3 inflammasome was dispensable. MAPK14 regulated recruitment of RELB to IL23A promoter regions. Without affecting the ubiquitin-proteasome pathway, propranolol increased lysosomal pH and induced a late-stage block in macroautophagy/autophagy. Propranolol specifically induced reactive oxygen species production, which was critical for IL23A secretion, in Langerhans-like cells. Our findings provide insight into a potentially crucial immunoregulatory mechanism in cutaneous dendritic cells that may explain how lysosomotropic drugs regulate inflammatory responses. ABBREVIATIONS ATF: activating transcription factor; DC: dendritic cell; ChIP: chromatin immunoprecipitation; gDNA: genomic DNA; IL: interleukin; LAMP1: lysosomal associated membrane protein 1; LC: Langerhans cell; LPS: lipopolysaccharide; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MAPK: mitogen-activated protein kinase; MoDC: monocyte-derived DC; MoLC: monocyte-derived Langerhans-like cell; mtDNA: mitochondrial DNA; NAC: N-acetyl-L-cysteine; NLRP3: NLR family pyrin domain containing 3; PBMC: peripheral blood mononuclear cell; PI: propidium iodide; PYCARD/ASC: PYD and CARD domain containing; qRT-PCR: quantitative real-time PCR; ROS: reactive oxygen species; SQSTM1/p62: sequestosome 1; TLR: Toll-like receptor; TRAF6: TNF receptor associated factor 6; TNF: tumor necrosis factor; Ub: ubiquitin.
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Affiliation(s)
- Gerrit Müller
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin , Berlin, Germany
| | - Charlotte Lübow
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin , Berlin, Germany.,Section Pharmacology and Toxicology, University of Bonn, Pharmaceutical Institute , Bonn, Germany
| | - Günther Weindl
- Institute of Pharmacy (Pharmacology and Toxicology), Freie Universität Berlin , Berlin, Germany.,Section Pharmacology and Toxicology, University of Bonn, Pharmaceutical Institute , Bonn, Germany
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Pan W, Wang Q, Chen Q. The cytokine network involved in the host immune response to periodontitis. Int J Oral Sci 2019; 11:30. [PMID: 31685798 PMCID: PMC6828663 DOI: 10.1038/s41368-019-0064-z] [Citation(s) in RCA: 313] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 07/29/2019] [Indexed: 02/06/2023] Open
Abstract
Periodontitis is an inflammatory disease involving the destruction of both soft and hard tissue in the periodontal region. Although dysbiosis of the local microbial community initiates local inflammation, over-activation of the host immune response directly activates osteoclastic activity and alveolar bone loss. Many studies have reported on the cytokine network involved in periodontitis and its crucial and pleiotropic effect on the recruitment of specific immunocytes, control of pathobionts and induction or suppression of osteoclastic activity. Nonetheless, particularities in the stimulation of pathogens in the oral cavity that lead to the specific and complex periodontal cytokine network are far from clarified. Thus, in this review, we begin with an up-to-date aetiological hypothesis of periodontal disease and summarize the roles of cytokines in the host immune response. In addition, we also summarize the latest cytokine-related therapeutic measures for periodontal disease.
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Affiliation(s)
- Weiyi Pan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qingxuan Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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11
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Gruber HE, Marrero E, Cox M, Hanley E. Interleukin-23 is constitutively expressed in the human annulus in vivo and in vitro, and is up-regulated in vitro by TNF-α. Biotech Histochem 2019; 94:540-545. [PMID: 31537133 DOI: 10.1080/10520295.2019.1577990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Interleukin-23 (IL-23, IL-23p19) is a proinflammatory cytokine in the IL-12-related family. Although inflammatory cells in herniated discs have been shown to contain IL-23, little is known about the presence and role of IL-23 in human disc cells. We analyzed disc specimens for IL-23 localization using immunohistochemistry in control, herniated and non-herniated discs from which annulus fibrosus (annulus) cells were isolated and cultured to identify IL-23 gene expression and production. Microarray analysis was used to assess the expression of IL-23 in disc tissue and in cells exposed to two proinflammatory cytokines, IL-1ß and TNF-α. IL-23 was present in annulus cells at the protein level and its expression was up-regulated significantly in herniated compared to control disc tissue. Direct measurement of medium components confirmed production of IL-23 and its receptor, IL-23R, by annulus cells in vitro. Annulus cells in three-dimensional culture exposed to TNF-α, but not IL-1ß, resulted in significant up-regulation of IL-23 expression compared to control cells. Our findings are evidence for the constitutive presence of IL-23 in the human disc and that its expression in vitro is modified by exposure to TNF-α.
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Affiliation(s)
- H E Gruber
- Department of Orthopaedic Surgery, Carolinas HealthCare System , Charlotte , NC , USA
| | - E Marrero
- Department of Orthopaedic Surgery, Carolinas HealthCare System , Charlotte , NC , USA
| | - M Cox
- Department of Orthopaedic Surgery, Carolinas HealthCare System , Charlotte , NC , USA
| | - Edward Hanley
- Department of Orthopaedic Surgery, Carolinas HealthCare System , Charlotte , NC , USA
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12
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Swindell WR, Beamer MA, Sarkar MK, Loftus S, Fullmer J, Xing X, Ward NL, Tsoi LC, Kahlenberg MJ, Liang Y, Gudjonsson JE. RNA-Seq Analysis of IL-1B and IL-36 Responses in Epidermal Keratinocytes Identifies a Shared MyD88-Dependent Gene Signature. Front Immunol 2018; 9:80. [PMID: 29434599 PMCID: PMC5796909 DOI: 10.3389/fimmu.2018.00080] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 01/11/2018] [Indexed: 12/14/2022] Open
Abstract
IL-36 cytokines have recently emerged as mediators of inflammation in autoimmune conditions including psoriasis vulgaris (PsV) and generalized pustular psoriasis (GPP). This study used RNA-seq to profile the transcriptome of primary epidermal keratinocytes (KCs) treated with IL-1B, IL-36A, IL-36B, or IL-36G. We identified some early IL-1B-specific responses (8 h posttreatment), but nearly all late IL-1B responses were replicated by IL-36 cytokines (24 h posttreatment). Type I and II interferon genes exhibited time-dependent response patterns, with early induction (8 h) followed by no response or repression (24 h). Altogether, we identified 225 differentially expressed genes (DEGs) with shared responses to all 4 cytokines at both time points (8 and 24 h). These involved upregulation of ligands (IL1A, IL1B, and IL36G) and activating proteases (CTSS) but also upregulation of inhibitors such as IL1RN and IL36RN. Shared IL-1B/IL-36 DEGs overlapped significantly with genes altered in PsV and GPP skin lesions, as well as genes near GWAS loci linked to autoimmune and autoinflammatory diseases (e.g., PsV, psoriatic arthritis, inflammatory bowel disease, and primary biliary cholangitis). Inactivation of MyD88 adapter protein using CRISPR/Cas9 completely abolished expression responses of such DEGs to IL-1B and IL-36G stimulation. These results provide a global view of IL-1B and IL-36 expression responses in epidermal KCs with fine-scale characterization of time-dependent and cytokine-specific response patterns. Our findings support an important role for IL-1B and IL-36 in autoimmune or autoinflammatory conditions and show that MyD88 adaptor protein mediates shared IL-1B/IL-36 responses.
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Affiliation(s)
- William R Swindell
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, United States
| | - Maria A Beamer
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Mrinal K Sarkar
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Shannon Loftus
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Joseph Fullmer
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Xianying Xing
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Nicole L Ward
- Department of Dermatology, Case Western Reserve University, Cleveland, OH, United States
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Michelle J Kahlenberg
- Department of Internal Medicine, Division of Rheumatology, University of Michigan, Ann Arbor, MI, United States
| | - Yun Liang
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan, Ann Arbor, MI, United States
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13
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Functional analyses of the interaction of chicken interleukin 23 subunit p19 with IL-12 subunit p40 to form the IL-23 complex. Mol Immunol 2017; 92:54-67. [DOI: 10.1016/j.molimm.2017.09.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 09/23/2017] [Accepted: 09/27/2017] [Indexed: 11/18/2022]
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14
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Melatonin Inhibits CXCL10 and MMP-1 Production in IL-1β-Stimulated Human Periodontal Ligament Cells. Inflammation 2017; 39:1520-6. [PMID: 27271323 DOI: 10.1007/s10753-016-0386-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Melatonin is a hormone that is mainly secreted by the pineal gland and exhibits a wide spectrum of activities, including antioxidant functions. Melatonin has been detected in gingival crevicular fluid. However, the role of melatonin in periodontal tissue is still uncertain. The aim of this study was to examine the effects of melatonin on inflammatory mediator expression in human periodontal ligament cells (HPDLC). Interleukin (IL)-1β induced CXC chemokine ligand (CXCL)10, matrix metalloproteinase (MMP)-1, and tissue inhibitors of metalloproteinase (TIMP)-1 production in HPDLC. Melatonin decreased CXCL10 and MMP-1 production and increased TIMP-1 production in IL-1β-stimulated HPDLC. Western blot analysis showed that melatonin inhibited p38 mitogen-activated protein kinase (MAPK) and c-jun N-terminal kinase (JNK) phosphorylation, and IkB-α degradation and phosphorylation in IL-1β-stimulated HPDLC. These results suggest that melatonin might inhibit Th1 cell migration by reducing CXCL10 production. Moreover, melatonin might inhibit soft tissue destruction by decreasing MMP-1 production in periodontal lesions.
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15
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Shikonin Inhibits Inflammatory Cytokine Production in Human Periodontal Ligament Cells. Inflammation 2017; 39:1124-9. [PMID: 27072015 DOI: 10.1007/s10753-016-0344-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Shikonin, which is derived from Lithospermum erythrorhizon, a herb used in traditional medicine, has long been considered to be a useful treatment for various diseases in traditional oriental medicine. Shikonin has recently been reported to have several pharmacological properties, e.g., it has anti-microbial, anti-tumor, and anti-inflammatory effects. The aim of this study was to examine whether shikonin is able to influence the production of interleukin (IL)-6, IL-8, and/or chemokine C-C motif ligand (CCL)20, which contribute to the pathogenesis of periodontal disease, in human periodontal ligament cells (HPDLC). The production levels of IL-6, IL-8, and CCL20 in HPDLC were determined using an ELISA. Western blot analysis was used to detect nuclear factor kappa B (NF-κB) pathway activation in HPDLC. Shikonin prevented IL-1β- or tumor necrosis factor (TNF)-α-mediated IL-6, IL-8, and CCL20 production in HPDLC. Moreover, we found that shikonin suppressed the phosphorylation and degradation of inhibitor of kappa B-alpha (IκB-α) in IL-1β- or TNF-α-stimulated HPDLC. These findings suggest that shikonin could have direct beneficial effects against periodontal disease by reducing IL-6, IL-8, and CCL20 production in periodontal lesions.
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16
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Wang Y, He H, Cao Z, Fang Y, Du M, Liu Z. Regulatory effects of bone morphogenetic protein-4 on tumour necrosis factor-α-suppressed Runx2 and osteoprotegerin expression in cementoblasts. Cell Prolif 2017; 50. [PMID: 28244247 DOI: 10.1111/cpr.12344] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/06/2017] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Root resorption is a common phenomenon presented in periodontitis and orthodontic treatment, both of which are accompanied by an elevated TNF-α expression level in the periodontal tissues. Previously, we proved that TNF-α showed an inhibitory effect on cementoblast differentiation, mineralization and proliferation. However, the effect of TNF-α on Runx2 and osteoprotegerin (OPG) expression remains undetermined. This study aimed to identify the influence of TNF-α on Runx2 and OPG expression in cementoblasts and to test whether BMP-2,-4,-6,-7 would affect TNF-α-regulated Runx2 and OPG. MATERIALS AND METHODS An immortalized murine cementoblast cell line OCCM-30 was used in this study. The expression of Runx2 and OPG were examined by qRT-PCR after stimulating cells with TNF-α. The role of signalling pathways, including MAPK, PI3K-Akt and NF-κB, were studied with the use of specific inhibitors. Cells were treated with TNF-α in combination with BMP-2,-4,-6 or -7, then the expression of Runx2 and OPG, the activity of MAPK and NF-κB pathways, and the proliferation ability were evaluated by qRT-PCR, Western blot and MTS assay respectively. RESULTS TNF-α inhibited Runx2 and OPG mRNAs in OCCM-30 cells, and the inhibitory effects were further aggravated by blocking p38 MAPK or NF-κB pathway. TNF-α-inhibited Runx2 and OPG were up-regulated by BMP-4. The p38 MAPK and Erk1/2 pathways were further activated by the combined treatment of BMP-4 and TNF-α compared with TNF-α alone. Finally, the TNF-α-suppressed proliferation was not obviously affected by BMP-2,-4,-6 or -7. CONCLUSIONS TNF-α inhibited Runx2 and OPG in cementoblasts, and the p38 MAPK and NF-κB pathways acted in a negative-feedback way to attenuate the inhibitory effects. TNF-α-inhibited Runx2 and OPG could be effectively up-regulated by BMP-4; however, further investigations are needed to fully elaborate the underlying mechanisms.
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Affiliation(s)
- Yunlong Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR, China
| | - Hong He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR, China
| | - Zhengguo Cao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR, China
| | - Yi Fang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR, China
| | - Mingyuan Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR, China
| | - Zhijian Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, PR, China
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17
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Ma N, Yang D, Okamura H, Teramachi J, Hasegawa T, Qiu L, Haneji T. Involvement of interleukin‑23 induced by Porphyromonas endodontalis lipopolysaccharide in osteoclastogenesis. Mol Med Rep 2016; 15:559-566. [PMID: 28000855 PMCID: PMC5364876 DOI: 10.3892/mmr.2016.6041] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 09/20/2016] [Indexed: 12/15/2022] Open
Abstract
Periapical lesions are characterized by the destruction of periapical bone, and occur as a result of local inflammatory responses to root canal infection by microorganisms including Porphyromonas endodontalis (P. endodontalis). P. endodontalis and its primary virulence factor, lipopolysaccharide (LPS), are associated with the development of periapical lesions and alveolar bone loss. Interleukin-23 (IL-23) is critical in the initiation and progression of periodontal disease via effects on peripheral bone metabolism. The present study investigated the expression of IL-23 in tissue where a periapical lesion was present, and the effect of P. endodontalis LPS on the expression of IL-23 in periodontal ligament (PDL) cells. Reverse transcription- quantitative polymerase chain reaction and immunohistochemistry revealed increased levels of IL-23 expression in tissue with periapical lesions compared with healthy PDL tissue. Treatment with P. endodontalis LPS increased the expression of IL-23 in the SH-9 human PDL cell line. BAY11-7082, a nuclear factor κB inhibitor, suppressed P. endodontalis LPS-induced IL-23 expression in SH-9 cells. Treatment of RAW264.7 cells with conditioned medium from P. endodontalis LPS-treated SH-9 cells promoted osteoclastogenesis. By contrast, RAW264.7 cells treated with conditioned medium from IL-23-knockdown SH-9 cells underwent reduced levels of osteoclastogenesis. The results of the present study indicated that the expression of IL-23 in PDL cells induced by P. endodontalis LPS treatment may be involved in the progression of periapical lesions via stimulation of the osteoclastogenesis process.
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Affiliation(s)
- Nan Ma
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Di Yang
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Hirohiko Okamura
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770‑8504, Japan
| | - Jumpei Teramachi
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770‑8504, Japan
| | - Tomokazu Hasegawa
- Department of Pediatric Dentistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770‑8504, Japan
| | - Lihong Qiu
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang, Liaoning 110002, P.R. China
| | - Tatsuji Haneji
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770‑8504, Japan
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18
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Nishise S, Abe Y, Nomura E, Sato T, Sasaki Y, Iwano D, Yoshizawa K, Yagi M, Sakuta K, Ueno Y. Effect of Cellulose Acetate Beads on Interleukin-23 Release. Ther Apher Dial 2016; 20:354-9. [DOI: 10.1111/1744-9987.12466] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Shoichi Nishise
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Yasuhiko Abe
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Eiki Nomura
- Department of Gastroenterology; Sendai City Hospital; Sendai Japan
| | - Takeshi Sato
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Yu Sasaki
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Daisuke Iwano
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Kazuya Yoshizawa
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Makoto Yagi
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Kazuhiro Sakuta
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
| | - Yoshiyuki Ueno
- Department of Gastroenterology; Yamagata University Faculty of Medicine; Yamagata Japan
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19
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Wynick C, Petes C, Tigert A, Gee K. Lipopolysaccharide-Mediated Induction of Concurrent IL-1β and IL-23 Expression in THP-1 Cells Exhibits Differential Requirements for Caspase-1 and Cathepsin B Activity. J Interferon Cytokine Res 2016; 36:477-87. [PMID: 27096899 DOI: 10.1089/jir.2015.0134] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The inflammasome is a multimeric protein complex required for interleukin (IL)-1β production. Upon lipopolysaccharide (LPS) triggering of toll-like receptor (TLR)-4 and subsequent ATP signaling, the NOD-like receptor containing-pyrin domain 3 (NLRP3) inflammasome is activated to cleave pro-caspase-1 into caspase-1, allowing the secretion of IL-1β. IL-1β is known to function with IL-23 in the regulation of IL-17-producing CD4(+) T cells, Th17 cells, in adaptive immunity. Recently, studies have shown that IL-1β and IL-23 together activate IL-17-producing innate lymphoid cells, demonstrating that the pair may exhibit additional effects on cell differentiation. Using an in vitro model of bacterial infection, LPS treatment of human monocytic cells, we investigated the molecular mechanisms involved in the co-expression of IL-1β and IL-23. We found that IL-1β is partially required for optimal LPS-induced IL-23 production. We also found that IL-23 production was partially dependent on ATP signaling via the P2X7 receptor, whereas IL-1β production required this signaling. Furthermore, we identified a novel role for cathepsin B activity in IL-23 production. Taken together, this study identifies differential requirements for the co-expression of IL-1β and IL-23. Due to their similar roles in Th17 differentiation, characterization of the regulatory mechanisms for LPS-induced IL-1β and IL-23 may reveal novel information into the pathology of the inflammatory response particularly during bacterial infection.
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Affiliation(s)
- Christopher Wynick
- Department of Biomedical and Molecular Sciences, Queen's University , Kingston, Canada
| | - Carlene Petes
- Department of Biomedical and Molecular Sciences, Queen's University , Kingston, Canada
| | - Alexander Tigert
- Department of Biomedical and Molecular Sciences, Queen's University , Kingston, Canada
| | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen's University , Kingston, Canada
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20
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Malecka A, Wang Q, Shah S, Sutavani RV, Spendlove I, Ramage JM, Greensmith J, Franks HA, Gough MJ, Saalbach A, Patel PM, Jackson AM. Stromal fibroblasts support dendritic cells to maintain IL-23/Th17 responses after exposure to ionizing radiation. J Leukoc Biol 2016; 100:381-9. [PMID: 27049023 PMCID: PMC4945355 DOI: 10.1189/jlb.3a1015-474r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 03/18/2016] [Indexed: 12/30/2022] Open
Abstract
Cross talk between DCs and FBs in understanding the effects of IR in DC function. Dendritic cell function is modulated by stromal cells, including fibroblasts. Although poorly understood, the signals delivered through this crosstalk substantially alter dendritic cell biology. This is well illustrated with release of TNF-α/IL-1β from activated dendritic cells, promoting PGE2 secretion from stromal fibroblasts. This instructs dendritic cells to up-regulate IL-23, a key Th17-polarizing cytokine. We previously showed that ionizing radiation inhibited IL-23 production by human dendritic cells in vitro. In the present study, we investigated the hypothesis that dendritic cell-fibroblast crosstalk overcomes the suppressive effect of ionizing radiation to support appropriately polarized Th17 responses. Radiation (1–6 Gy) markedly suppressed IL-23 secretion by activated dendritic cells (P < 0.0001) without adversely impacting their viability and consequently, inhibited the generation of Th17 responses. Cytokine suppression by ionizing radiation was selective, as there was no effect on IL-1β, -6, -10, and -27 or TNF-α and only a modest (11%) decrease in IL-12p70 secretion. Coculture with fibroblasts augmented IL-23 secretion by irradiated dendritic cells and increased Th17 responses. Importantly, in contrast to dendritic cells, irradiated fibroblasts maintained their capacity to respond to TNF-α/IL-1β and produce PGE2, thus providing the key intermediary signals for successful dendritic cell-fibroblasts crosstalk. In summary, stromal fibroblasts support Th17-polarizing cytokine production by dendritic cells that would otherwise be suppressed in an irradiated microenvironment. This has potential ramifications for understanding the immune response to local radiotherapy. These findings underscore the need to account for the impact of microenvironmental factors, including stromal cells, in understanding the control of immunity.
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Affiliation(s)
- Anna Malecka
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom
| | - Qunwei Wang
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom
| | - Sabaria Shah
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom
| | - Ruhcha V Sutavani
- Cancer Immunotherapy Group, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom; Cell Signalling and Immunology, University of Dundee, Scotland, United Kingdom
| | - Ian Spendlove
- Cancer Immunotherapy Group, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Judith M Ramage
- Cancer Immunotherapy Group, Division of Cancer and Stem Cells, University of Nottingham, Nottingham, United Kingdom
| | - Julie Greensmith
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom; Intelligent Modelling and Analysis Research Group, University of Nottingham, Nottingham, United Kingdom
| | - Hester A Franks
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom
| | - Michael J Gough
- Earle A. Chiles Research Institute, Robert W. Franz Cancer Center, Providence Portland Medical Center, Portland, Oregon, USA
| | - Anja Saalbach
- Klinik fur Dermatologie, University of Leipzig, Germany; and
| | - Poulam M Patel
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom
| | - Andrew M Jackson
- Host-Tumour Interactions Group, University of Nottingham, Nottingham, United Kingdom;
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21
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Ponichtera HE, Stadecker MJ. Dendritic cell expression of the C-type lectin receptor CD209a: A novel innate parasite-sensing mechanism inducing Th17 cells that drive severe immunopathology in murine schistosome infection. Exp Parasitol 2015; 158:42-7. [PMID: 25913088 DOI: 10.1016/j.exppara.2015.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/25/2015] [Accepted: 04/19/2015] [Indexed: 10/23/2022]
Abstract
Following infection with the trematode helminth Schistosoma mansoni, CBA mice develop severe parasite egg-induced hepatic granulomatous inflammation as well as prominent CD4(+) T helper 17 (Th17) cell responses driven by dendritic cell (DC)-derived IL-1β and IL-23. By comparison, C57BL/6 mice develop mild hepatic immunopathology, egg stimulation of DCs does not result in IL-1β and IL-23 production, and Th17 cells fail to develop. To investigate the reasons for strain-specific differences in antigen presenting cell (APC) reactivity to eggs, we performed a comparative gene profiling analysis of normal bone marrow-derived DCs (BMDCs) and found that CBA DCs display markedly elevated expression of C-type lectin receptors (CLRs). In particular, expression of CD209a, a murine homologue of human DC-specific ICAM-3-grabbing non-integrin (DC-SIGN, CD209), was strikingly higher in CBA than BL/6 DCs. High CD209a surface expression was observed in various CBA splenic and granuloma APC subpopulations; however, only DCs, and not macrophages, B cells or neutrophils, were able to induce Th17 cell differentiation in response to schistosome eggs. Lentiviral gene silencing in CBA DCs, and over-expression in BL/6 DCs, demonstrated CD209a to be critical for egg-induced DC IL-1β and IL-23 production necessary for Th17 cell differentiation and expansion. These findings reveal a novel innate parasite-sensing mechanism promoting CD4(+) Th17 cells that mediate severe immunopathology in schistosomiasis.
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Affiliation(s)
- Holly E Ponichtera
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine and Sackler School of Graduate Biomedical Sciences, Boston, MA 02111, USA
| | - Miguel J Stadecker
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine and Sackler School of Graduate Biomedical Sciences, Boston, MA 02111, USA.
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22
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Bian C, Zhao ZQ, Zhang YQ, Lü N. Involvement of CX3CL1/CX3CR1 signaling in spinal long term potentiation. PLoS One 2015; 10:e0118842. [PMID: 25768734 PMCID: PMC4358970 DOI: 10.1371/journal.pone.0118842] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 01/14/2015] [Indexed: 12/30/2022] Open
Abstract
The long-term potentiation (LTP) of spinal C-fiber-evoked field potentials is considered as a fundamental mechanism of central sensitization in the spinal cord. Accumulating evidence has showed the contribution of spinal microglia to spinal LTP and pathological pain. As a key signaling of neurons-microglia interactions, the involvement of CX3CL1/CX3CR1 signaling in pathological pain has also been investigated extensively. The present study examined whether CX3CL1/CX3CR1 signaling plays a role in spinal LTP. The results showed that 10-trains tetanic stimulation (100 Hz, 2s) of the sciatic nerve (TSS) produced a significant LTP of C-fiber-evoked field potentials lasting for over 3 h in the rat spinal dorsal horn. Blockade of CX3CL1/CX3CR1 signaling with an anti-CX3CR1 neutralizing antibody (CX3CR1 AB) markedly suppressed TSS-induced LTP. Exogenous CX3CL1 significantly potentiated 3-trains TSS-induced LTP in rats. Consistently, spinal LTP of C-fiber-evoked field potentials was also induced by TSS (100 Hz, 1s, 4 trains) in all C57BL/6 wild type (WT) mice. However, in CX3CR1-/- mice, TSS failed to induce LTP and behavioral hypersensitivity, confirming an essential role of CX3CR1 in spinal LTP induction. Furthermore, blockade of IL-18 or IL-23, the potential downstream factors of CX3CL1/CX3CR1 signaling, with IL-18 BP or anti-IL-23 neutralizing antibody (IL-23 AB), obviously suppressed spinal LTP in rats. These results suggest that CX3CL1/CX3CR1 signaling is involved in LTP of C-fiber-evoked field potentials in the rodent spinal dorsal horn.
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Affiliation(s)
- Chao Bian
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
| | - Zhi-Qi Zhao
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
| | - Yu-Qiu Zhang
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
- * E-mail: (NL); (YQZ)
| | - Ning Lü
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China
- * E-mail: (NL); (YQZ)
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23
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Wilflingseder D, Schroll A, Hackl H, Gallasch R, Frampton D, Lass-Flörl C, Pancino G, Saez-Cirion A, Lambotte O, Weiss L, Kellam P, Trajanoski Z, Geijtenbeek T, Weiss G, Posch W. Immediate T-Helper 17 Polarization Upon Triggering CD11b/c on HIV-Exposed Dendritic Cells. J Infect Dis 2015; 212:44-56. [PMID: 25583169 DOI: 10.1093/infdis/jiv014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 12/29/2014] [Indexed: 12/14/2022] Open
Abstract
Early on in human immunodeficiency virus (HIV) type 1 infection, gut T-helper (Th) 17 cells are massively depleted leading eventually to compromised intestinal barrier function and excessive immune activation. In contrast, the functional Th17 cell compartment of the gut is well-maintained in nonpathogenic simian immunodeficiency virus infection as well as HIV-1 long-term nonprogressors. Here, we show that dendritic cells (DCs) loaded with HIV-1 bearing high surface complement levels after incubation in plasma from HIV-infected individuals secreted significantly higher concentrations of Th17-polarizing cytokines than DCs exposed to nonopsonized HIV-1. The enhanced Th17-polarizing capacity of in vitro-generated and BDCA-1(+) DCs directly isolated from blood was linked to activation of ERK. In addition, C3a produced from DCs exposed to complement-opsonized HIV was associated with the higher Th17 polarization. Our in vitro and ex vivo data, therefore, indicate that complement opsonization of HIV-1 strengthens DC-mediated antiviral immune functions by simultaneously triggering Th17 expansion and intrinsic C3 formation via DC activation.
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Affiliation(s)
| | - Andrea Schroll
- Department of Internal Medicine VI, Clinical Immunology and Infectious Diseases
| | - Hubert Hackl
- Division of Bioinformatics, Biocenter, Medical University of Innsbruck, Austria
| | - Ralf Gallasch
- Division of Bioinformatics, Biocenter, Medical University of Innsbruck, Austria
| | - Dan Frampton
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge University College London, Windeyer Institute, United Kingdom
| | | | | | | | - Olivier Lambotte
- INSERM U1012, Régulation de la Réponse Immune, Infection VIH1 et Autoimmunité, Université Paris Sud APHP, Service de Médecine Interne, Hôpitaux Universitaires Paris Sud Faculté de Médecine Paris Sud, Le Kremlin Bicêtre, France
| | - Laurence Weiss
- Unité de Régulation des Infections Rétrovirales APHP Hôpital Européen Georges Pompidou, Paris
| | - Paul Kellam
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge University College London, Windeyer Institute, United Kingdom
| | - Zlatko Trajanoski
- Division of Bioinformatics, Biocenter, Medical University of Innsbruck, Austria
| | - Teunis Geijtenbeek
- Center for Experimental and Molecular Medicine, Academic Medical Center, University of Amsterdam, The Netherlands
| | - Günter Weiss
- Department of Internal Medicine VI, Clinical Immunology and Infectious Diseases
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24
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Yang JW, Zhang YF, Wan CY, Sun ZY, Nie S, Jian SJ, Zhang L, Song GT, Chen Z. Autophagy in SDF-1α-mediated DPSC migration and pulp regeneration. Biomaterials 2015; 44:11-23. [PMID: 25617122 DOI: 10.1016/j.biomaterials.2014.12.006] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 12/09/2014] [Accepted: 12/16/2014] [Indexed: 12/11/2022]
Abstract
Critical morphological requirements for pulp regeneration are tissues replete with vascularisation, neuron formation, and dentin deposition. Autophagy was recently shown to be related to angiogenesis, neural differentiation, and osteogenesis. The present study aimed to investigate the involvement of autophagy in stromal cell-derived factor-1α (SDF-1α)-mediated dental pulp stem cell (DPSC) migration and pulp regeneration, and identify its presence during pulp revascularisation of pulpectomised dog teeth with complete apical closure. In vitro studies showed that SDF-1α enhanced DPSCs migration and optimised focal adhesion formation and stress fibre assembly, which were accompanied by autophagy. Moreover, autophagy inhibitors significantly suppressed, whereas autophagy activator substantially augmented SDF-1α-stimulated DPSCs migration. Furthermore, after ectopic transplantation of tooth fragment/silk fibroin scaffold with DPSCs into nude mice, pulp-like tissues with vascularity, well-organised fibrous matrix formation, and new dentin deposition along the dentinal wall were generated in SDF-1α-loaded samples accompanied by autophagy. More importantly, in a pulp revascularisation model in situ, SDF-1α-loaded silk fibroin scaffolds improved the de novo ingrowth of pulp-like tissues in pulpectomised mature dog teeth, which correlated with the punctuated LC3 and Atg5 expressions, indicating autophagy. Our findings provide novel insights into the pulp regeneration mechanism, and SDF-1α shows promise for future clinical application in pulp revascularisation.
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Affiliation(s)
- Jing-Wen Yang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Yu-Feng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Chun-Yan Wan
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Zhe-Yi Sun
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Shuai Nie
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Shu-Juan Jian
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Lu Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China
| | - Guang-Tai Song
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China.
| | - Zhi Chen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, China.
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25
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Said A, Bock S, Lajqi T, Müller G, Weindl G. Chloroquine Promotes IL-17 Production by CD4+T Cells via p38-Dependent IL-23 Release by Monocyte-Derived Langerhans-like Cells. THE JOURNAL OF IMMUNOLOGY 2014; 193:6135-43. [DOI: 10.4049/jimmunol.1303276] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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26
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Ponichtera HE, Shainheit MG, Liu BC, Raychowdhury R, Larkin BM, Russo JM, Salantes DB, Lai CQ, Parnell LD, Yun TJ, Cheong C, Bunnell SC, Hacohen N, Stadecker MJ. CD209a expression on dendritic cells is critical for the development of pathogenic Th17 cell responses in murine schistosomiasis. THE JOURNAL OF IMMUNOLOGY 2014; 192:4655-65. [PMID: 24729611 DOI: 10.4049/jimmunol.1400121] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
In murine schistosomiasis, immunopathology and cytokine production in response to parasite eggs are uneven and strain dependent. CBA/J (CBA) mice develop severe hepatic granulomatous inflammation associated with prominent Th17 cell responses driven by dendritic cell (DC)-derived IL-1β and IL-23. Such Th17 cells fail to develop in low-pathology C57BL/6 (BL/6) mice, and the reasons for these strain-specific differences in APC reactivity to eggs remain unclear. We show by gene profiling that CBA DCs display an 18-fold higher expression of the C-type lectin receptor CD209a, a murine homolog of human DC-specific ICAM-3-grabbing nonintegrin, compared with BL/6 DCs. Higher CD209a expression was observed in CBA splenic and granuloma APC subpopulations, but only DCs induced Th17 cell differentiation in response to schistosome eggs. Gene silencing in CBA DCs and overexpression in BL/6 DCs demonstrated that CD209a is essential for egg-elicited IL-1β and IL-23 production and subsequent Th17 cell development, which is associated with SRC, RAF-1, and ERK1/2 activation. These findings reveal a novel mechanism controlling the development of Th17 cell-mediated severe immunopathology in helminthic disease.
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Affiliation(s)
- Holly E Ponichtera
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111
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27
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Bian C, Wang ZC, Yang JL, Lu N, Zhao ZQ, Zhang YQ. Up-regulation of interleukin-23 induces persistent allodynia via CX3CL1 and interleukin-18 signaling in the rat spinal cord after tetanic sciatic stimulation. Brain Behav Immun 2014; 37:220-30. [PMID: 24362237 DOI: 10.1016/j.bbi.2013.12.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/06/2013] [Accepted: 12/13/2013] [Indexed: 12/21/2022] Open
Abstract
Tetanic stimulation of the sciatic nerve (TSS) induces sciatic nerve injury and long-lasting pain hypersensitivity in rats, and spinal glial activation and proinflammatory cytokines releases are involved. In the present study, we showed that spinal interleukin (IL)-23 and its receptor, IL-23R, are crucial for the development of mechanical allodynia after TSS. In the spinal dorsal horn, both IL-23 and IL-23R are expressed in astrocytes, and this expression is substantially increased after TSS. Inhibition of IL-23 signaling attenuated TSS-induced allodynia and decreased the induction of glial fibrillary acidic protein (GFAP, an astrocytic marker). Conversely, intrathecally delivered IL-23 induced a persistent allodynia. Similar to IL-23 signaling, an increase in IL-18 and its receptor, IL-18R, as well as CX3CL1 and its receptor, CX3CR1, was simultaneously observed in the spinal dorsal horn after TSS. Interestingly, IL-18 and CX3CR1 were exclusively expressed in microglia, while IL-18R was mainly localized in astrocytes. In contrast, CX3CL1 was predominately expressed in neurons and secondarily in astrocytes. The functional inhibition of CX3CL1 and IL-18 signaling attenuated TSS-induced allodynia and suppressed IL-23 and IL-23R upregulation. Activation of CX3CR1 and IL-18R induced similar behavioral and biochemical changes to those observed after TSS. These results indicate that the interaction among CX3CL1, IL-18 and IL-23 signaling in the spinal cord plays a critical role in the development of allodynia. Thus, interrupting this chemokine-cytokine network might provide a novel therapeutic strategy for neuropathic pain.
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Affiliation(s)
- Chao Bian
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, China
| | - Zhe-Chen Wang
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, China
| | - Jia-Le Yang
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, China
| | - Ning Lu
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, China
| | - Zhi-Qi Zhao
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, China
| | - Yu-Qiu Zhang
- Institute of Neurobiology, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai 200032, China.
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28
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Li ZQ, Rong XY, Liu YJ, Ni C, Tian XS, Mo N, Chui DH, Guo XY. Activation of the canonical nuclear factor-κB pathway is involved in isoflurane-induced hippocampal interleukin-1β elevation and the resultant cognitive deficits in aged rats. Biochem Biophys Res Commun 2013; 438:628-34. [PMID: 23933318 DOI: 10.1016/j.bbrc.2013.08.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 08/01/2013] [Indexed: 12/24/2022]
Abstract
Although much recent evidence has demonstrated that neuroinflammation contributes to volatile anesthetic-induced cognitive deficits, there are few existing mechanistic explanations for this inflammatory process. This study was conducted to investigate the effects of the volatile anesthetic isoflurane on canonical nuclear factor (NF)-κB signaling, and to explore its association with hippocampal interleukin (IL)-1β levels and anesthetic-related cognitive changes in aged rats. After a 4-h exposure to 1.5% isoflurane in 20-month-old rats, increases in IκB kinase and IκB phosphorylation, as well as a reduction in the NF-κB inhibitory protein (IκBα), were observed in the hippocampi of isoflurane-exposed rats compared with control rats. These events were accompanied by an increase in NF-κB p65 nuclear translocation at 6h after isoflurane exposure and hippocampal IL-1β elevation from 1 to 6h after isoflurane exposure. Nevertheless, no significant neuroglia activation was observed. Pharmacological inhibition of NF-κB activation by pyrrolidine dithiocarbamate markedly suppressed the IL-1β increase and NF-κB signaling, and also mitigated the severity of cognitive deficits in the Morris water maze task. Overall, our results demonstrate that isoflurane-induced cognitive deficits may stem from upregulation of hippocampal IL-1β, partially via activation of the canonical NF-κB pathway, in aged rats.
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Affiliation(s)
- Zheng-Qian Li
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
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29
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Morandini AC, Chaves Souza PP, Ramos-Junior ES, Souza Costa CA, Santos CF. MyD88 or TRAM knockdown regulates interleukin (IL)-6, IL-8, and CXCL12 mRNA expression in human gingival and periodontal ligament fibroblasts. J Periodontol 2012; 84:1353-60. [PMID: 23136947 DOI: 10.1902/jop.2012.120496] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND In a previous report, it was shown that Toll-like receptor (TLR) 2 knockdown modulates interleukin (IL)-6 and IL-8 but not the chemokine CXCL12, an important mediator with inflammatory and proangiogenic effects, in human gingival fibroblasts (HGF) and human periodontal ligament fibroblasts (HPDLF). This study investigates whether knocking down two important TLR adaptor molecules, such as myeloid differentiation protein 88 (MyD88) and TRIF-related adaptor molecule (TRAM), could affect mRNA expression of IL-6, IL-8, and CXCL12 in HGF and HPDLF. METHODS After small interfering (si) RNA-mediated silencing of MyD88 or TRAM, HGF and HPDLF were stimulated with Porphyromonas gingivalis (Pg) lipopolysaccharide (LPS) or two synthetic ligands of TLR2 (Pam2CSK4 and Pam3CSK4) for 6 hours. IL-6, IL-8, and CXCL12 mRNAs were evaluated by quantitative polymerase chain reaction. RESULTS Knockdown of MyD88 or TRAM partially impaired the IL-8 mRNA upregulation in both fibroblast subpopulations. Similarly, IL-6 upregulation was partially prevented by siMyD88 or siTRAM in HGF stimulated with Pg LPS, as well as in both fibroblast subtypes challenged with Pam2CSK4. Conversely, constitutive CXCL12 mRNA levels were upregulated by MyD88 or TRAM knockdown in non-stimulated cells. CONCLUSIONS These results suggest that TLR adaptor molecules knockdown, such as MyD88 or TRAM, can decrease IL-6 and IL-8 mRNA and increase CXCL12 mRNA expression in HGF and HPDLF. This can be an important step for better understanding the mechanisms that control the inflammatory cytokine and chemokine expression, which in turn contributes to periodontal pathogenesis.
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Affiliation(s)
- Ana Carolina Morandini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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