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Chen J, Gao Y, Liu N, Hai D, Wei W, Liu Y, Lan X, Jin X, Yu J, Ma L. Mechanism of NLRP3 Inflammasome in Epilepsy and Related Therapeutic Agents. Neuroscience 2024; 546:157-177. [PMID: 38574797 DOI: 10.1016/j.neuroscience.2024.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/05/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
Epilepsy is one of the most widespread and complex diseases in the central nervous system (CNS), affecting approximately 65 million people globally, an important factor resulting in neurological disability-adjusted life year (DALY) and progressive cognitive dysfunction. Medication is the most essential treatment. The currently used drugs have shown drug resistance in some patients and only control symptoms; the development of novel and more efficacious pharmacotherapy is imminent. Increasing evidence suggests neuroinflammation is involved in the occurrence and development of epilepsy, and high expression of NLRP3 inflammasome has been observed in the temporal lobe epilepsy (TLE) brain tissue of patients and animal models. The inflammasome is a crucial cause of neuroinflammation by activating IL-1β and IL-18. Many preclinical studies have confirmed that regulating NLRP3 inflammasome pathway can prevent the development of epilepsy, reduce the severity of epilepsy, and play a neuroprotective role. Therefore, regulating NLRP3 inflammasome could be a potential target for epilepsy treatment. In summary, this review describes the priming and activation of inflammasome and its biological function in the progression of epilepsy. In addition, we reviewes the current pharmacological researches for epilepsy based on the regulation of NLRP3 inflammasome, aiming to provide a basis and reference for developing novel antiepileptic drugs.
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Affiliation(s)
- Juan Chen
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Yuan Gao
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Ning Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Dongmei Hai
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Wei Wei
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Yue Liu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Xiaobing Lan
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China
| | - Xueqin Jin
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China.
| | - Jianqiang Yu
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China.
| | - Lin Ma
- Department of Pharmacology, Ningxia Medical University, Yinchuan 750004, China.
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2
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Vinţeler N, Feurdean CN, Petkes R, Barabas R, Boşca BA, Muntean A, Feștilă D, Ilea A. Biomaterials Functionalized with Inflammasome Inhibitors-Premises and Perspectives. J Funct Biomater 2024; 15:32. [PMID: 38391885 PMCID: PMC10889089 DOI: 10.3390/jfb15020032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/21/2024] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
This review aimed at searching literature for data regarding the inflammasomes' involvement in the pathogenesis of oral diseases (mainly periodontitis) and general pathologies, including approaches to control inflammasome-related pathogenic mechanisms. The inflammasomes are part of the innate immune response that activates inflammatory caspases by canonical and noncanonical pathways, to control the activity of Gasdermin D. Once an inflammasome is activated, pro-inflammatory cytokines, such as interleukins, are released. Thus, inflammasomes are involved in inflammatory, autoimmune and autoinflammatory diseases. The review also investigated novel therapies based on the use of phytochemicals and pharmaceutical substances for inhibiting inflammasome activity. Pharmaceutical substances can control the inflammasomes by three mechanisms: inhibiting the intracellular signaling pathways (Allopurinol and SS-31), blocking inflammasome components (VX-765, Emricasan and VX-740), and inhibiting cytokines mediated by the inflammasomes (Canakinumab, Anakinra and Rilonacept). Moreover, phytochemicals inhibit the inflammasomes by neutralizing reactive oxygen species. Biomaterials functionalized by the adsorption of therapeutic agents onto different nanomaterials could represent future research directions to facilitate multimodal and sequential treatment in oral pathologies.
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Affiliation(s)
- Norina Vinţeler
- Department of Oral Rehabilitation, Faculty of Dentistry, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Claudia Nicoleta Feurdean
- Department of Oral Rehabilitation, Faculty of Dentistry, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Regina Petkes
- Department of Chemistry and Chemical Engineering of Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 400028 Cluj-Napoca, Romania
| | - Reka Barabas
- Department of Chemistry and Chemical Engineering of Hungarian Line of Study, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, 400028 Cluj-Napoca, Romania
| | - Bianca Adina Boşca
- Department of Histology, Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Alexandrina Muntean
- Department of Paediatric, Faculty of Dentistry, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca 400012, Romania
| | - Dana Feștilă
- Department of Orthodontics, Faculty of Dentistry, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca 400012, Romania
| | - Aranka Ilea
- Department of Oral Rehabilitation, Faculty of Dentistry, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
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3
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Toraman A, Sağlam E, Savran L, Sağlam M, Köseoğlu S. Salivary levels of NLRC4 inflammasome in different periodontal clinical status. Oral Dis 2023; 29:2765-2771. [PMID: 36327138 DOI: 10.1111/odi.14424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/20/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Nucleotide-binding and oligomerization domain (NOD)-like receptor family CARD domain-containing protein 4 (NLRC4) has a critical role in the regulation of interleukin-1β (IL-1β), an important cytokine in the pathogenesis of the periodontal diseases. In this study, we aimed to evaluate levels of salivary NLRC4 inflammasomes in different periodontal clinical statuses. METHODS The individuals with 20 periodontally healthy (healthy), 20 gingivitis, and 20 periodontitis were periodontally examined. Saliva samples were collected, after the clinical measurements (plaque index, gingival index, gingival bleeding index, probing depth, and clinical attachment level). The levels of salivary NLRC4, IL-1β, and interleukin 10 (IL-10) were examined by enzyme-linked immunosorbent assay. RESULTS The results demonstrated that levels of salivary NLRC4 (p < 0.01), and IL-1β (p < 0.001) were significantly higher in gingivitis and periodontitis than in the healthy group. No significant difference was salivary IL-10 levels between the groups (p > 0.05). Positive significant correlations among NLRC4 and IL-1β salivary levels and clinical parameters were detected (p < 0.05). CONCLUSION The findings of this study suggest that the NLRC4 is elevated in periodontal disease. Larger randomized controlled clinical studies are needed to use salivary NLRC4 levels as a potential marker for detecting the presence and/or severity of the periodontal disease.
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Affiliation(s)
- Ayşe Toraman
- Department of Periodontology, Hamidiye Faculty of Dentistry, Health Sciences University, İstanbul, Turkey
| | - Ebru Sağlam
- Department of Periodontology, Hamidiye Faculty of Dentistry, Health Sciences University, İstanbul, Turkey
| | - Levent Savran
- Department of Periodontology, Faculty of Dentistry, İzmir Katip Çelebi University, İzmir, Turkey
| | - Mehmet Sağlam
- Department of Periodontology, Faculty of Dentistry, İzmir Katip Çelebi University, İzmir, Turkey
| | - Serhat Köseoğlu
- Department of Periodontology, Faculty of Dentistry, İstanbul Medeniyet University, İstanbul, Turkey
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4
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Nazari S, Pourmand SM, Motevaseli E, Hassanzadeh G. Mesenchymal stem cells (MSCs) and MSC-derived exosomes in animal models of central nervous system diseases: Targeting the NLRP3 inflammasome. IUBMB Life 2023; 75:794-810. [PMID: 37278718 DOI: 10.1002/iub.2759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/02/2023] [Indexed: 06/07/2023]
Abstract
The NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3) inflammasome is a multimeric protein complex that is engaged in the innate immune system and plays a vital role in inflammatory reactions. Activation of the NLRP3 inflammasome and subsequent release of proinflammatory cytokines can be triggered by microbial infection or cellular injury. The NLRP3 inflammasome has been implicated in the pathogenesis of many disorders affecting the central nervous system (CNS), ranging from stroke, traumatic brain injury, and spinal cord injury to Alzheimer's disease, Parkinson's disease, epilepsy, multiple sclerosis, and depression. Furthermore, emerging evidence has suggested that mesenchymal stem cells (MSCs) and their exosomes may modulate NLRP3 inflammasome activation in a way that might be promising for the therapeutic management of CNS diseases. In the present review, particular focus is placed on highlighting and discussing recent scientific evidence regarding the regulatory effects of MSC-based therapies on the NLRP3 inflammasome activation and their potential to counteract proinflammatory responses and pyroptotic cell death in the CNS, thereby achieving neuroprotective impacts and improvement in behavioral impairments.
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Affiliation(s)
- Shahrzad Nazari
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mahmoud Pourmand
- School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elahe Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Hassanzadeh
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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5
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Metcalfe S, Panasiewicz M, Kay JG. Inflammatory macrophages exploited by oral streptococcus increase IL-1B release via NLRP6 inflammasome. J Leukoc Biol 2023; 114:347-357. [PMID: 37497744 PMCID: PMC10533225 DOI: 10.1093/jleuko/qiad089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 07/28/2023] Open
Abstract
Chronic inflammatory periodontal disease develops in part from the infiltration of a large number of classically activated inflammatory macrophages that release inflammatory cytokines important for disease progression, including inflammasome-dependent interleukin (IL)-1β. Streptococcus gordonii is a normally commensal oral microorganism; while not causative, recent evidence indicates that commensal oral microbes are required for the full development of periodontal disease. We have recently reported that inflammatory macrophages counterintuitively allow for the increased survival of phagocytosed S. gordonii over nonactivated or alternatively activated macrophages. This survival is dependent on increased reactive oxygen species production within the phagosome of the inflammatory macrophages, and resistance by the bacterium and can result in S. gordonii damaging the phagolysosomes. Here, we show that activated macrophages infected with live S. gordonii release more IL-1β than non-activated macrophages infected with either live or dead S. gordonii, and that the survival of oral Streptococci are more dependent on macrophage activation than other Gram positive microbes, both classical pathogens and commensals. We also find that S. gordonii-dependent inflammatory macrophage inflammasome activation requires the cytoplasmic NLRP6. Overall, our results suggest S. gordonii is capable of evading immune destruction, increasing inflammatory mediators, and increasing inflammatory macrophage response, and that this ability is increased under conditions of inflammation. This work reveals additional mechanisms by which normally commensal oral streptococci-macrophage interactions can change, resulting in increased release of mature IL-1β, potentially contributing to an environment that perpetuates inflammation.
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Affiliation(s)
- Sarah Metcalfe
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, 3435 Main street, Buffalo, NY 14214, United States
| | - Michelle Panasiewicz
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, 3435 Main street, Buffalo, NY 14214, United States
| | - Jason G Kay
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, 3435 Main street, Buffalo, NY 14214, United States
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6
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Han Y, Gao P, Yang Q, Huang Y, Jia L, Zheng Y, Li W, Kaushik S. Pasteurella multocida Toxin Aggravates Ligatured-Induced Periodontal Bone Loss and Inflammation via NOD-Like Receptor Protein 3 Inflammasome. Cell Microbiol 2022; 2022:1-16. [DOI: 10.1155/2022/3305695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome is reportedly involved in periodontal pathogenesis. Pasteurella multocida toxin (PMT) is the major virulence factor of Pasteurella multocida strains, which belongs to the nonoral gram-negative facultative rods (GNFR). The existence of GNFR and their toxin may aggravate periodontitis. Therefore, it is important to unclose the regulatory mechanisms of PMT in periodontitis. However, the involvement of NLRP3 inflammasome and PMT in periodontitis remain unclear. The results showed that NLRP3 expression was increased in periodontitis mice by immunohistochemical staining and quantitative reverse transcription polymerase chain reaction (qRT-PCR). Nlrp3-/- mice showed less periodontal bone loss and lower abundances of Pasteurella multocida by 16S rRNA sequencing. PMT promoted NLRP3 expressions by activating nuclear factor kappa light chain enhancer of B cells (NF-κB) pathway and activated NLRP3 inflammasome. This effect was reversed by NLRP3 inhibitor MCC950. Furthermore, PMT aggravated periodontal bone loss and inflammation in WT mice, while MCC950 attenuated periodontal bone loss and inflammation. The Nlrp3-/- periodontitis models with PMT local injection showed less bone loss and inflammation compared with WT periodontitis mice after PMT treatment. Taken together, our results showed that PMT aggravates periodontal response to the ligature by promoting NLRP3 expression and activating NLRP3 inflammasome, suggesting that NLRP3 may be an effective target for the treatment of periodontitis caused by GNFR and MCC950 may be a potential drug against this disease.
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7
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Koca-Ünsal RB, Şehirli AÖ, Sayıner S, Aksoy U. Relationship of NLRP3 inflammasome with periodontal, endodontic and related systemic diseases. Mol Biol Rep 2022; 49:11123-11132. [DOI: 10.1007/s11033-022-07894-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/28/2022]
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8
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Hasuike A, Nagao M, Moriya Y, Numasaki H, Sato S. Mild elevation of C-reactive protein in a young patient with severe periodontitis: a case report with 2 years of follow-up. J Int Med Res 2022; 50:3000605221117148. [PMID: 36036246 PMCID: PMC9434698 DOI: 10.1177/03000605221117148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Periodontal inflammation is associated with systemic disease. Low-grade inflammation
(LGI) is critical to the link between periodontal disease and several systemic disorders.
C-reactive protein (CRP) is a common circulating biomarker for acute-phase immune
responses, and it is closely related to LGI. The present case demonstrated excellent
results using a comprehensive approach for periodontitis in a young woman with severe
periodontitis and mild CRP elevation. A 21-year-old Japanese woman complained of tooth
mobility and bleeding during tooth brushing. She was pre-obese (body mass index = 29.9),
and she had a mildly elevated CRP level (5.2 mg/L). Of all periodontal sites, 34.5% had
deep pockets (≥6 mm). The patient was diagnosed with stage III, grade C periodontitis and
generalized aggressive periodontitis. Comprehensive periodontal treatments, including
regenerative procedures for vertical bone loss and furcation involvement, were performed.
Periodontal tissue inflammation was resolved, and periodontal regeneration was achieved.
During the 2-year follow-up period, her teeth did not exhibit any signs of instability,
attachment loss, or bone loss. Despite the weak nature of the evidence, this case suggests
that CRP is valuable for assessing LGI, and it may potentially be considered during
periodontal grading in the future.
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Affiliation(s)
- Akira Hasuike
- Department of Periodontology, Nihon University School of Dentistry, Tokyo.,Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | - Mayu Nagao
- Department of Pharmacology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | | | | | - Shuichi Sato
- Department of Periodontology, Nihon University School of Dentistry, Tokyo.,Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
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9
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Cheat B, Torrens C, Foda A, Baroukh B, Sadoine J, Slimani L, Witko-Sarsat V, Huck O, Gosset M, Bouchet J. NLRP3 Is Involved in Neutrophil Mobilization in Experimental Periodontitis. Front Immunol 2022; 13:839929. [PMID: 35281020 PMCID: PMC8905524 DOI: 10.3389/fimmu.2022.839929] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/01/2022] [Indexed: 11/13/2022] Open
Abstract
The NLRP3 inflammasome is overexpressed in gingiva of periodontitis patients but its role remains unclear. In our study, we use a periodontitis mouse model of ligature, impregnated or not with Porphyromonas gingivalis, in WT or NLRP3 KO mice. After 28 days of induction, ligature alone provoked exacerbated periodontal destruction in KO mice, compared to WT mice, with an increase in activated osteoclasts. No difference was observed at 14 days, suggesting that NLRP3 is involved in regulatory pathways that limit periodontitis. In contrast, in the presence of P. gingivalis, this protective effect of NLRP3 was not observed. Overexpression of NLRP3 in connective tissue of WT mice increased the local production of mature IL-1β, together with a dramatic mobilization of neutrophils, bipartitely distributed between the site of periodontitis induction and the alveolar bone crest. P. gingivalis enhanced the targeting of NLRP3-positive neutrophils to the alveolar bone crest, suggesting a role for this subpopulation in bone loss. Conversely, in NLRP3 KO mice, mature IL-1β expression was lower and almost no neutrophils were mobilized. Our study sheds new light on the role of NLRP3 in periodontitis by highlighting the ambiguous role of neutrophils, and P. gingivalis which affects NLRP3 functions.
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Affiliation(s)
- Banndith Cheat
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Coralie Torrens
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Asmaa Foda
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Brigitte Baroukh
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Laboratoire d'Excellence INFLAMEX, Paris, France
| | - Jeremy Sadoine
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Université de Paris, Plateforme Imageries du Vivant, Faculté de Chirurgie Dentaire, Montrouge, France
| | - Lotfi Slimani
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Université de Paris, Plateforme Imageries du Vivant, Faculté de Chirurgie Dentaire, Montrouge, France
| | - Véronique Witko-Sarsat
- Laboratoire d'Excellence INFLAMEX, Paris, France.,Université de Paris, INSERM U1016, CNRS UMR 8104, Institut Cochin, Paris, France
| | - Olivier Huck
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Periodontology, Strasbourg, France.,INSERM, UMR 1260, Regenerative Nanomedicine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Marjolaine Gosset
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Laboratoire d'Excellence INFLAMEX, Paris, France.,Service de Médecine Bucco-Dentaire, AP-HP, Hôpital Charles Foix, Ivry-sur-Seine, France
| | - Jérôme Bouchet
- Université de Paris, Laboratory of Orofacial Pathologies, Imaging and Biotherapies URP2496, Montrouge, France.,Laboratoire d'Excellence INFLAMEX, Paris, France
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10
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Silva RCL, Sasso‐Cerri E, Cerri PS. Diacerein‐induced interleukin‐1β deficiency reduces the inflammatory infiltrate and immunoexpression of matrix metalloproteinase‐8 in periodontitis in rat molars. J Periodontol 2022; 93:1540-1552. [DOI: 10.1002/jper.21-0375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/02/2021] [Accepted: 10/05/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Renata Cristina Lima Silva
- Department of Diagnosis and Surgery, Dental School São Paulo State University (UNESP) Araraquara São Paulo Brazil
| | - Estela Sasso‐Cerri
- Laboratory of Histology and Embryology – Department of Morphology, Genetics Orthodontics and Pediatric Dentistry – Dental School – São Paulo State University (UNESP) Araraquara SP Brazil
| | - Paulo Sérgio Cerri
- Laboratory of Histology and Embryology – Department of Morphology, Genetics Orthodontics and Pediatric Dentistry – Dental School – São Paulo State University (UNESP) Araraquara SP Brazil
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11
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Sordi MB, Magini RS, Panahipour L, Gruber R. Pyroptosis-Mediated Periodontal Disease. Int J Mol Sci 2021; 23:372. [PMID: 35008798 DOI: 10.3390/ijms23010372] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 12/17/2022] Open
Abstract
Pyroptosis is a caspase-dependent process relevant to the understanding of beneficial host responses and medical conditions for which inflammation is central to the pathophysiology of the disease. Pyroptosis has been recently suggested as one of the pathways of exacerbated inflammation of periodontal tissues. Hence, this focused review aims to discuss pyroptosis as a pathological mechanism in the cause of periodontitis. The included articles presented similarities regarding methods, type of cells applied, and cell stimulation, as the outcomes also point to the same direction considering the cellular events. The collected data indicate that virulence factors present in the diseased periodontal tissues initiate the inflammasome route of tissue destruction with caspase activation, cleavage of gasdermin D, and secretion of interleukins IL-1β and IL-18. Consequently, removing periopathogens’ virulence factors that trigger pyroptosis is a potential strategy to combat periodontal disease and regain tissue homeostasis.
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12
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Shimabukuro N, Cataruci ACDS, Ishikawa KH, de Oliveira BE, Kawamoto D, Ando-Suguimoto ES, Albuquerque-Souza E, Nicoli JR, Ferreira CM, de Lima J, Bueno MR, da Silva LBR, Silva PHF, Messora MR, Camara NOS, Simionato MRL, Mayer MPA. Bifidobacterium Strains Present Distinct Effects on the Control of Alveolar Bone Loss in a Periodontitis Experimental Model. Front Pharmacol 2021; 12:713595. [PMID: 34630089 PMCID: PMC8497694 DOI: 10.3389/fphar.2021.713595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022] Open
Abstract
Periodontitis is an inflammatory disease induced by a dysbiotic oral microbiome. Probiotics of the genus Bifidobacterium may restore the symbiotic microbiome and modulate the immune response, leading to periodontitis control. We evaluated the effect of two strains of Bifidobacterium able to inhibit Porphyromonas gingivalis interaction with host cells and biofilm formation, but with distinct immunomodulatory properties, in a mice periodontitis model. Experimental periodontitis (P+) was induced in C57Bl/6 mice by a microbial consortium of human oral organisms. B. bifidum 1622A [B+ (1622)] and B. breve 1101A [B+ (1101)] were orally inoculated for 45 days. Alveolar bone loss and inflammatory response in gingival tissues were determined. The microbial consortium induced alveolar bone loss in positive control (P + B-), as demonstrated by microtomography analysis, although P. gingivalis was undetected in oral biofilms at the end of the experimental period. TNF-α and IL-10 serum levels, and Treg and Th17 populations in gingiva of SHAM and P + B- groups did not differ. B. bifidum 1622A, but not B. breve 1101A, controlled bone destruction in P+ mice. B. breve 1101A upregulated transcription of Il-1β, Tnf-α, Tlr2, Tlr4, and Nlrp3 in P-B+(1101), which was attenuated by the microbial consortium [P + B+(1101)]. All treatments downregulated transcription of Il-17, although treatment with B. breve 1101A did not yield such low levels of transcripts as seen for the other groups. B. breve 1101A increased Th17 population in gingival tissues [P-B+ (1101) and P + B+ (1101)] compared to SHAM and P + B-. Administration of both bifidobacteria resulted in serum IL-10 decreased levels. Our data indicated that the beneficial effect of Bifidobacterium is not a common trait of this genus, since B. breve 1101A induced an inflammatory profile in gingival tissues and did not prevent alveolar bone loss. However, the properties of B. bifidum 1622A suggest its potential to control periodontitis.
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Affiliation(s)
- Natali Shimabukuro
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Amália C de S Cataruci
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Karin H Ishikawa
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Bruna E de Oliveira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Dione Kawamoto
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ellen S Ando-Suguimoto
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Emmanuel Albuquerque-Souza
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Jacques R Nicoli
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Caroline M Ferreira
- Department of Pharmaceutics Science, Institute of Environmental, Chemistry and Pharmaceutical Sciences, Federal University of São Paulo, Diadema, Brazil
| | - Jean de Lima
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Manuela R Bueno
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Leandro B R da Silva
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Pedro H F Silva
- Department of Oral and Maxillofacial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Michel R Messora
- Department of Oral and Maxillofacial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Niels O S Camara
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maria Regina L Simionato
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcia P A Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.,Division of Periodontics, Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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13
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Abstract
Bone remodeling is tightly controlled by osteoclast-mediated bone resorption and osteoblast-mediated bone formation. Fine tuning of the osteoclast-osteoblast balance results in strict synchronization of bone resorption and formation, which maintains structural integrity and bone tissue homeostasis; in contrast, dysregulated bone remodeling may cause pathological osteolysis, in which inflammation plays a vital role in promoting bone destruction. The alveolar bone presents high turnover rate, complex associations with the tooth and periodontium, and susceptibility to oral pathogenic insults and mechanical stress, which enhance its complexity in host defense and bone remodeling. Alveolar bone loss is also involved in systemic bone destruction and is affected by medication or systemic pathological factors. Therefore, it is essential to investigate the osteoimmunological mechanisms involved in the dysregulation of alveolar bone remodeling. The inflammasome is a supramolecular protein complex assembled in response to pattern recognition receptors and damage-associated molecular patterns, leading to the maturation and secretion of pro-inflammatory cytokines and activation of inflammatory responses. Pyroptosis downstream of inflammasome activation also facilitates the clearance of intracellular pathogens and irritants. However, inadequate or excessive activity of the inflammasome may allow for persistent infection and infection spreading or uncontrolled destruction of the alveolar bone, as commonly observed in periodontitis, periapical periodontitis, peri-implantitis, orthodontic tooth movement, medication-related osteonecrosis of the jaw, nonsterile or sterile osteomyelitis of the jaw, and osteoporosis. In this review, we present a framework for understanding the role and mechanism of canonical and noncanonical inflammasomes in the pathogenesis and development of etiologically diverse diseases associated with alveolar bone loss. Inappropriate inflammasome activation may drive alveolar osteolysis by regulating cellular players, including osteoclasts, osteoblasts, osteocytes, periodontal ligament cells, macrophages, monocytes, neutrophils, and adaptive immune cells, such as T helper 17 cells, causing increased osteoclast activity, decreased osteoblast activity, and enhanced periodontium inflammation by creating a pro-inflammatory milieu in a context- and cell type-dependent manner. We also discuss promising therapeutic strategies targeting inappropriate inflammasome activity in the treatment of alveolar bone loss. Novel strategies for inhibiting inflammasome signaling may facilitate the development of versatile drugs that carefully balance the beneficial contributions of inflammasomes to host defense.
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Affiliation(s)
- Yang Li
- Department of Endodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
| | - Junqi Ling
- Department of Endodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China.,Guangdong Province Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Qianzhou Jiang
- Department of Endodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, China
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14
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Wang B, Bai S, Wang J, Ren N, Xie R, Cheng G, Yu Y. TPCA-1 negatively regulates inflammation mediated by NF-κB pathway in mouse chronic periodontitis model. Mol Oral Microbiol 2021; 36:192-201. [PMID: 33768683 DOI: 10.1111/omi.12335] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 02/28/2021] [Accepted: 03/15/2021] [Indexed: 12/13/2022]
Abstract
The dysregulation of immune system plays a crucial function in periodontitis development. Pro-inflammatory cytokines are thought to be critical for the generation and development of periodontitis. The enhanced activity of osteoclasts contributes to periodontitis pathogenesis. Nuclear factor-κB (NF-κB) signaling pathway directly enhances osteoclast differentiation and maturation. 2-[(aminocarbonyl)amino]-5-(4-fluorophenyl)-3-thiophenecarboxamide (TPCA-1) is a IκB kinases (IKK) inhibitor. This research aimed to investigate whether TPCA-1 had influence on the pathogenesis of chronic periodontitis. Mouse chronic periodontitis was induced by an in vivo ligature-induced periodontitis model. TPCA-1 was intravenously injected into mice after chronic periodontitis induction. Bone marrow-derived macrophages were cultured in macrophage colony-stimulating factor (M-CSF)-conditioned media with receptor activator of nuclear factor-kappa B ligand (RANKL) induce in vitro osteoclast differentiation. Western blot was used to analyze protein levels and mRNA levels were analyzed through qRT-PCR. TPCA-1 promoted osteoclastogenesis and osteoclast-related gene expression in vitro. The production of pro-inflammatory cytokines in osteoclasts induced by lipopolysaccharides was inhibited by TPCA-1 in vitro. In vitro TPCA-1 treatment inhibited Aggregatibacter actinomycetemcomitans (A.a)-induced expression of pro-inflammatory cytokines and NF-κB signal activation in osteoclasts. The induction of chronic periodontitis was inhibited by the absence of IKKb in mice. This research demonstrates that the treatment of TPCA-1 negatively regulates inflammation response and inhibits the osteoclastogenesis through the inactivation of NF-κB pathway in mouse chronic periodontitis model.
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Affiliation(s)
- Bo Wang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.,Department of Stomatology, Xi'an People's Hospital, Xi'an, Shaanxi, China
| | - Shizhu Bai
- Digital Center, The Hospital of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jiang Wang
- Department of General Dentistry & Emergency, The Hospital of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Nan Ren
- Digital Center, The Hospital of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Rui Xie
- Digital Center, The Hospital of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Geng Cheng
- Digital Center, The Hospital of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yan Yu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
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15
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Ren B, Lu J, Li M, Zou X, Liu Y, Wang C, Wang L. Anti-inflammatory effect of IL-1ra-loaded dextran/PLGA microspheres on Porphyromonas gingivalis lipopolysaccharide-stimulated macrophages in vitro and in vivo in a rat model of periodontitis. Biomed Pharmacother 2021; 134:111171. [PMID: 33383312 DOI: 10.1016/j.biopha.2020.111171] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 02/08/2023] Open
Abstract
Periodontitis is a multifactorial chronic infectious disease leading to a host immune response involving inflammatory cytokines, especially IL-1β, which is the main reason for further developing this disease. IL-1 receptor antagonist (IL-1ra) binds IL-1 receptor, inhibiting IL-1β signaling and reducing the levels of other cytokines closely related to periodontitis, such as IL-6 and TNF-α. Therefore, the use of IL-1ra to inhibit periodontitis development in a system, ensuring its sustained release, might be an effective way to combat this disease. Hence, in this study, a novel IL-1ra-loaded dextran/PLGA microsphere was developed to allow the sustained release of IL-1ra and enhance the anti-inflammatory properties. Therefore, this study's purposes were to develop a novel periodontal treatment for inhibition and treatment of periodontitis and evaluate the sustained-release effect and anti-inflammatory properties of IL-1ra-loaded dextran/PLGA microspheres in vitro by cell experiments and in vivo by animal experiments. The results showed that IL-1ra-loaded dextran/PLGA microspheres were non-toxic both in vitro and in vivo and could be used as a safe and effective treatment. In addition, these microspheres could significantly prolong the half-life of IL-1ra drug, exerting a useful anti-inflammatory effect in macrophages stimulated with P. gingivalis lipopolysaccharide and in rats with periodontitis. In conclusion, IL-1ra-loaded dextran/PLGA microsphere might be a useful tool to combat periodontal disease.
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Affiliation(s)
- Baijie Ren
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China
| | - Jingyi Lu
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China
| | - Minghe Li
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China
| | - Xinying Zou
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China
| | - Yue Liu
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China
| | - Chang Wang
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China
| | - Lei Wang
- Department of Periodontology, Hospital of Stomatology, Jilin University, Changchun, 130021, People's Republic of China.
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16
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Aral K, Milward MR, Cooper PR. Inflammasome dysregulation in human gingival fibroblasts in response to periodontal pathogens. Oral Dis 2020; 28:216-224. [PMID: 33368813 DOI: 10.1111/odi.13760] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 12/07/2020] [Accepted: 12/17/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Uncontrolled production of Interleukin-1β (IL-1β), a major proinflammatory cytokine, is associated with tissue destruction in periodontal disease. IL-1β production is controlled by inflammasomes which are multiprotein regulatory complexes. The current study aimed to elucidate potential regulatory pathways by monitoring the effects of periodontal pathogens Fusobacterium nucleatum (Fn) and Porphyromonas gingivalis (Pg) on inflammasomes and their regulators in human gingival fibroblasts (HGFs) in vitro. METHODS HGFs were exposed to Fn and Pg alone or in combination for 24 hr at a multiplicity of infection of 100, ±30 min exposure with 5 mM adenosine triphosphate (ATP) incubation. Gene expression of NLRP3 and AIM2, inflammasome regulatory proteins POP1, CARD16 and TRIM16, and inflammasome components ASC and CASPASE 1, and IL-1β, were evaluated by RT-PCR. Pro- and mature IL-1β levels were monitored intracellularly by immunocytochemistry and extracellularly by ELISA. RESULTS Fn + ATP significantly upregulated NLRP3, AIM2, IL-1β, ASC, and CASPASE 1; however, it downregulated POP1 and TRIM16. Pg + ATP downregulated NLRP3, ASC, POP1, but upregulated IL-1β and CARD16. Pg + Fn+ATP significantly upregulated AIM2, IL-1β and CARD16, and downregulated POP1, TRIM16, and CASPASE 1. Pg + ATP exposure significantly increased pro- and mature IL-1β production. CONCLUSION Bacterial exposure with ATP may deregulate IL-1β by dysregulating inflammasomes and their regulators in HGFs.
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Affiliation(s)
- Kübra Aral
- School of Dentistry, University of Birmingham, Birmingham, UK.,Republic of Turkey Ministry of Health, Uskudar Ahmet Yuksel Ozemre Oral and Dental Health Center, Istanbul, Turkey
| | | | - Paul R Cooper
- School of Dentistry, University of Birmingham, Birmingham, UK.,Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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17
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Zhang Y, Zhuang D, Zhang Y, Lu H, Zhang H, Li T, Bi L. Super Activated Platelet Lysate, a Novel Autologous Platelet Lysate, Regulates the Expression of Inflammasome and Cytokine in the Experimental Periodontitis in Rats. Drug Des Devel Ther 2020; 14:5535-5543. [PMID: 33364749 PMCID: PMC7751324 DOI: 10.2147/dddt.s289753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/07/2020] [Indexed: 12/30/2022]
Abstract
Purpose The aim of the present study was to evaluate the expression of inflammasome and cytokine on experimental periodontitis with super activated platelet lysate (SPL) in rats. Methods Periodontitis was induced by submerging cotton ligatures on the right side of the maxillary second molar in 36 Wistar rats. The rats were divided into 3 groups randomly: the rats received no treatment (control group); local injection with sterile saline (ligature+saline group) and local injection with SPL (ligature+SPL group). After treatments, the alveolar bone level and inflammation of periodontal tissue were evaluated by micro-computed tomography (micro-CT) scanning and histological examination, respectively. The expression of inflammasome and cytokine was evaluated by real-time quantitative polymerase chain reaction (RT-qPCR) assay. Results Compared with the control group, the bone loss significantly increased by 0.9 mm in the ligature+saline group and 0.4 mm in the ligature+SPL group (P < 0.001). 0.5 mm reduction in the bone loss was founded in the ligature+SPL group compared with the ligature+saline group (P < 0.001). The gene expression of CCL2, CXCL2, IL-6, IL-18, IL-1α, IL-1β, CXCL10, CXCL16, CCL5 was significantly reduced in the ligature+SPL group compared with the ligature+saline group (P < 0.05). Compared with the ligature+saline group, the expression for inflammasome NLRP3, AIM2, CASP1 was both downregulated in the ligature+SPL group (P < 0.05). Conclusion Our present study demonstrated local injection of SPL regulated the expression of inflammasome and cytokine and had a visible effect of relieving inflammation in the experimental periodontitis in rats.
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Affiliation(s)
- Yi Zhang
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin 150001, People's Republic of China
| | - Deshu Zhuang
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin 150001, People's Republic of China.,Faculty of Dentistry, Department of Oral Biological and Medical Sciences, University of British Columbia, Vancouver BC V6T 1Z3, Canada
| | - Yi Zhang
- National and Local Joint Stem Cell Research & Engineering Center for Aging Diseases, Tian Qing Stem Cell Co., Ltd., Harbin 150028, People's Republic of China
| | - Huiying Lu
- National and Local Joint Stem Cell Research & Engineering Center for Aging Diseases, Tian Qing Stem Cell Co., Ltd., Harbin 150028, People's Republic of China
| | - Haijiao Zhang
- National and Local Joint Stem Cell Research & Engineering Center for Aging Diseases, Tian Qing Stem Cell Co., Ltd., Harbin 150028, People's Republic of China
| | - Tingting Li
- National and Local Joint Stem Cell Research & Engineering Center for Aging Diseases, Tian Qing Stem Cell Co., Ltd., Harbin 150028, People's Republic of China
| | - Liangjia Bi
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin 150001, People's Republic of China
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18
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Wang Y, Song Y, Zhong Q, Wu Y, Zhuang J, Qu F, Xu C. Suppressing ROS generation by apocynin inhibited cyclic stretch-induced inflammatory reaction in HPDLCs via a caspase-1 dependent pathway. Int Immunopharmacol 2020; 90:107129. [PMID: 33199234 DOI: 10.1016/j.intimp.2020.107129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 10/10/2020] [Accepted: 10/17/2020] [Indexed: 02/08/2023]
Abstract
It has been reported that cyclic stretch could induce inflammatory reaction in human periodontal ligament cells (HPDLCs). Though reactive oxygen species (ROS) has been reported to be involved in pathogen-induced periodontal inflammatory reaction, its role in the force-related periodontal diseases has not been well clarified. This study inspected the role of ROS in the cyclic stretch-induced inflammatory reaction in HPDLCs and studied the inhibitory effect of antioxidant apocynin on this inflammatory reaction. Results confirmed that cyclic stretch induced inflammatory reaction and production of ROS in HPDLCs. This inflammatory reaction was inhibited by apocynin through blocking the production of ROS. The cyclic stretch also induced the expression of caspase-1 and NLRP3 inflammasome, which could also be inhibited by apocynin. Moreover, the cyclic stretch-induced inflammatory reaction was inhibited by caspase-1 inhibitor. Collectively, it is the first time that increased intracellular ROS was proved to play as an intermediate signal in the cyclic stretch-induced inflammatory reaction in HPDLCs, via a caspase-1-dependent pathway. The inhibitory effect of apocynin on the cyclic stretch-induced inflammatory reaction in HPDLCs shows the potential of antioxidants in the treatment of force-related periodontal inflammatory diseases.
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Affiliation(s)
- Yingying Wang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yingshuang Song
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Qi Zhong
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yaqin Wu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jiabao Zhuang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Fang Qu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Chun Xu
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
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19
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Hasebe A, Saeki A, Shibata KI. Lipoprotein Extraction from Microbial Membrane and Lipoprotein/Lipopeptide Transfection into Mammalian Cells. Methods Mol Biol 2021; 2210:195-204. [PMID: 32815140 DOI: 10.1007/978-1-0716-0939-2_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Microbial lipoproteins/lipopeptides are important virulence factors for periodontal diseases. The membrane lipoproteins from Mycoplasma salivarium or Tannerella forsythia can be easily extracted by exploiting a characteristic feature of Triton X-114: its aqueous nature at low temperatures (0-4 °C), which is absent at room temperature (25-37 °C). Transfection of these lipopeptides into macrophages was performed using the protein transfection reagent, PULSin.
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20
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Wang X, Jiang M, He X, Zhang B, Peng W, Guo L. N‑acetyl cysteine inhibits the lipopolysaccharide‑induced inflammatory response in bone marrow mesenchymal stem cells by suppressing the TXNIP/NLRP3/IL‑1β signaling pathway. Mol Med Rep 2020; 22:3299-3306. [PMID: 32945495 PMCID: PMC7453581 DOI: 10.3892/mmr.2020.11433] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 07/22/2020] [Indexed: 12/14/2022] Open
Abstract
N-acetyl cysteine (NAC) has been used to inhibit lipopolysaccharide (LPS)-induced inflammation. However, the molecular mechanism underlying its anti-inflammatory effects remains to be elucidated. The present study aimed to determine the effect of NAC on the LPS-induced inflammatory response in bone marrow mesenchymal stem cells (BMSCs) and elucidate the underlying molecular mechanism. First, BMSCs were stimulated by LPS following pretreatment with NAC (0, 0.1, 0.5, 1 or 2 mM). A Cell Counting Kit 8 assay was used to determine the number of viable cells and 1 mM NAC was selected as the experimental concentration. Then, the secretion of inflammatory factors, including interleukin (IL)-1β, IL-6 and tumor necrosis factor-α was evaluated by enzyme-linked immunosorbent assay. Finally, the expression levels of mRNA and proteins, including apoptosis-associated speck-like protein containing a CARD (ASC), nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3), caspase-1, thioredoxin-interacting protein (TXNIP), and thioredoxin (TRX), were evaluated by reverse transcription-quantitative PCR and western blot analysis, respectively. The results demonstrated that the secretion of inflammatory factors, which was increased by the administration of LPS, was reduced by pretreatment with NAC. Furthermore, NAC reduced the expression of ASC, NLRP3, caspase-1 and TXNIP, but enhanced that of TRX. To conclude, NAC had anti-inflammatory effects on LPS-stimulated BMSCs, which was closely associated with the TXNIP/NLRP3/IL-1β signaling pathway. Thus, NAC may be a promising treatment to attenuate the inflammatory response in LPS-induced BMSCs.
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Affiliation(s)
- Xuemei Wang
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Mengyi Jiang
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaoping He
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Bo Zhang
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Wei Peng
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ling Guo
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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21
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Rocha FRG, Delitto AE, de Souza JAC, González-Maldonado LA, Wallet SM, Rossa Junior C. Relevance of Caspase-1 and Nlrp3 Inflammasome on Inflammatory Bone Resorption in A Murine Model of Periodontitis. Sci Rep 2020; 10:7823. [PMID: 32385413 PMCID: PMC7210885 DOI: 10.1038/s41598-020-64685-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/06/2020] [Indexed: 12/11/2022] Open
Abstract
This study investigates the role of NLRP3 inflammasome and its main effector Caspase-1 in inflammation and alveolar bone resorption associated with periodontitis. Heat-killed Aggregatibacter actinomycetemcomitans (Aa) was injected 3x/week (4 weeks) into gingival tissues of wild-type (WT), Nlrp3-KO and Caspase1-KO mice. Bone resorption was measured by µCT and osteoclast number was determined by tartrate-resistant acid phosphatase (TRAP) staining. Inflammation was assessed histologically (H/E staining and immunofluorescence of CD45 and Ly6G). In vitro studies determined the influence of Nlrp3 and Caspase-1 in Rankl-induced osteoclast differentiation and activity and on LPS-induced expression of inflammation-associated genes. Bone resorption was significantly reduced in Casp1-KO but not in Nlrp3-KO mice. Casp1-KO mice had increased in osteoclast numbers, whereas the inflammatory infiltrate or on gene expression were similar to those of WT and Nlrp3-KO mice. Strikingly, osteoclasts differentiated from Nlrp3-deficient macrophages had increased resorbing activity in vitro. LPS-induced expression of Il-10, Il-12 and Tnf-α was significantly reduced in Nlrp3- and Casp1-deficient macrophages. As an inceptive study, these results suggest that Nlrp3 inflammasome does not play a significant role in inflammation and bone resorption in vivo and that Caspase-1 has a pro-resorptive role in experimental periodontal disease.
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Affiliation(s)
- Fernanda R G Rocha
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, USA.,Department of Diagnosis and Surgery, UNESP-State University of Sao Paulo, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Andrea E Delitto
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL, USA
| | - Joao A Chaves de Souza
- Department of Stomatology, School of Dentistry, Federal University of Goias (UFG), Goiania, GO, Brazil
| | - Laura A González-Maldonado
- Department of Diagnosis and Surgery, UNESP-State University of Sao Paulo, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Shannon M Wallet
- Department of Oral and Craniofacial Health Sciences, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - Carlos Rossa Junior
- Department of Diagnosis and Surgery, UNESP-State University of Sao Paulo, School of Dentistry at Araraquara, Araraquara, SP, Brazil.
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22
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Kawahara Y, Kaneko T, Yoshinaga Y, Arita Y, Nakamura K, Koga C, Yoshimura A, Sakagami R. Effects of Sulfonylureas on Periodontopathic Bacteria-Induced Inflammation. J Dent Res 2020; 99:830-838. [PMID: 32202959 DOI: 10.1177/0022034520913250] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Interleukin-1β (IL-1β) is an inflammatory cytokine produced by monocytes/macrophages and is closely associated with periodontal diseases. The NLRP3 inflammasome is involved in IL-1β activation through pro-IL-1β processing and pyroptotic cell death in bacterial infection. Recently, glyburide, a hypoglycemic sulfonylurea, has been reported to reduce IL-1β activation by suppressing activation of the NLRP3 inflammasome. Therefore, we evaluated the possibility of targeting the NLRP3 inflammasome pathway by glyburide to suppress periodontal pathogen-induced inflammation. THP-1 cells (a human monocyte cell line) were differentiated to macrophage-like cells by treatment with phorbol 12-myristate 13-acetate and stimulated by periodontopathic bacteria, Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, or Fusobacterium nucleatum, in the presence of glyburide. IL-1β and caspase-1 expression in the cells and culture supernatants were analyzed by Western blotting and enzyme-linked immunosorbent assay, and cell death was analyzed by lactate dehydrogenase assay. Stimulation of THP-1 macrophage-like cells with every periodontopathic bacteria induced IL-1β secretion without cell death, which was suppressed by the NLRP3 inhibitor, MCC950, and caspase-1 inhibitor, z-YVAD-FMK. Glyburide treatment suppressed IL-1β expression in culture supernatants and enhanced intracellular IL-1β expression, suggesting that glyburide may have inhibited IL-1β secretion. Subsequently, a periodontitis rat model was generated by injecting periodontal bacteria into the gingiva, which was analyzed histologically. Oral administration of glyburide significantly suppressed the infiltration of inflammatory cells and the number of osteoclasts in the alveolar bone compared with the control. In addition to glyburide, glimepiride was shown to suppress the release of IL-1β from THP-1 macrophage-like cells, whereas other sulfonylureas (tolbutamide and gliclazide) or other hypoglycemic drugs belonging to the biguanide family, such as metformin, failed to suppress IL-1β release. Our results suggest that pharmacological targeting of the NLRP3 pathway may be a strategy for suppressing periodontal diseases.
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Affiliation(s)
- Y Kawahara
- Section of Periodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - T Kaneko
- Center for Oral Diseases, Fukuoka Dental College, Fukuoka, Japan
| | - Y Yoshinaga
- Section of Periodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan.,Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan
| | - Y Arita
- Section of Periodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
| | - K Nakamura
- Center for Oral Diseases, Fukuoka Dental College, Fukuoka, Japan
| | - C Koga
- Center for Oral Diseases, Fukuoka Dental College, Fukuoka, Japan
| | - A Yoshimura
- Department of Periodontology and Endodontology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - R Sakagami
- Section of Periodontology, Department of Odontology, Fukuoka Dental College, Fukuoka, Japan
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23
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Aral K, Milward MR, Kapila Y, Berdeli A, Cooper PR. Inflammasomes and their regulation in periodontal disease: A review. J Periodontal Res 2020; 55:473-487. [PMID: 31960443 DOI: 10.1111/jre.12733] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/15/2019] [Accepted: 12/28/2019] [Indexed: 12/12/2022]
Abstract
Interleukin-1β (IL-1β), which is secreted by host tissues leading to periodontal tissue inflammation, is a major pro-inflammatory cytokine in the pathogenesis of periodontal disease. The conversion of pro-IL-1β into its biologically active form is controlled by multiprotein complexes named as inflammasomes, which are key regulator of host defense mechanisms and inflammasome involved diseases, including the periodontal diseases. Inflammasomes are regulated by different proteins and processes, including pyrin domain (PYD)-only proteins (POPs), CARD-only proteins (COPs), tripartite motif family proteins (TRIMs), autophagy, and interferons. A review of in vitro, in vivo, and clinical data from these publications revealed that several inflammasomes including (NOD)-like receptor (NLR) pyrin domain-containing 3 (NLRP3) and absent in melanoma 2 (AIM2) have been found to be involved in periodontal disease pathogenesis. To the best of our knowledge, the current article provides the first review of the literature focusing on studies that evaluated both inflammasomes and their regulators in periodontal disease. An upregulation for inflammasomes and a downregulation of inflammasome regulator proteins including POPs, COPs, and TRIMs have been reported in periodontal disease. Although interferons (types I and II) and autophagy have been found to be involved in periodontal disease, their possible role in inflammasome activation has not evaluated yet. Modulating the excessive inflammatory response by the use of inflammasome regulators may have potential in the management of periodontal disease.
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Affiliation(s)
- Kübra Aral
- Oral Biology, School of Dentistry, University of Birmingham, Birmingham, UK.,Republic of Turkey Ministry of Health, Ankara, Turkey
| | - Michael R Milward
- Periodontology, School of Dentistry, University of Birmingham, Birmingham, UK
| | - Yvonne Kapila
- Orofacial Sciences, The School of Dentistry, University of California San Francisco, San Francisco, CA, USA
| | - Afig Berdeli
- Molecular Genetics, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Paul R Cooper
- Oral Biology, School of Dentistry, University of Birmingham, Birmingham, UK.,Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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24
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Rocha FRG, Delitto AE, de Souza JAC, Maldonado LAG, Wallet SM, Rossa C. NLRC4 inflammasome has a protective role on inflammatory bone resorption in a murine model of periodontal disease. Immunobiology 2019; 225:151855. [PMID: 31848028 DOI: 10.1016/j.imbio.2019.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/15/2019] [Indexed: 12/30/2022]
Abstract
There is virtually no information on the role of NLRC4 inflammasome on bone resorption and inflammation associated with periodontitis. Bacterial-associated experimental periodontitis was induced in wild-type (WT) and Nlrc4-KO C57BL/6 mice. 3 μL of a 1 × 109 UFC/mL PBS suspension of heat-killed Gram-negative bacteria were injected (3x/week for 4 weeks) directly into the gingival tissues of WT and Nlrc4-KO mice (n = 6/genotype). Control animals were injected bilaterally (3x/week for 4 weeks) in the same sites with the same volume of the PBS vehicle. Alveolar bone resorption was quantified by μCT. Inflammatory infiltrate in the gingival tissues was assessed qualitatively in H&E-stained slides and by the detection of a pan-leukocyte marker (CD45) and a neutrophil marker (Ly6G) using immunofluorescence. Modulation of Rankl, Mmp-13, Tnf-a, Il-6 and Il-10 expression in the gingival tissues was determined by RT-qPCR. Osteoclastogenesis was assessed in vivo by biochemical staining for TRAP. The relevance of NLRC4 for RANKL-induced osteoclastic differentiation and activity was investigated in vitro using bone marrow-derived macrophages from WT and Nlrc4-KO mice. Bone resorption was significantly greater in Nlrc4-KO mice; however there were no differences between WT and Nlrc4-KO mice on osteoclast numbers and on the inflammatory infiltrate. In vitro, osteoclast activity was significantly enhanced in Nlrc4-deficient macrophages; whereas RANKL-induced differentiation was not affected. Expression of the selected candidate genes was also similarly increased by the induction of experimental periodontal disease, except for the expression of Tnf-alpha and Il-10, which was already significantly higher in the gingival tissues of Nlrc4-KO mice. We conclude that NLRC4 inflammasome has a protective role on inflammatory bone resorption in this experimental model. Furthermore, the bone-sparing effect may be related with the modulation of osteoclast activity.
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Affiliation(s)
- Fernanda R G Rocha
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, USA; Department of Diagnosis and Surgery, UNESP-State University of Sao Paulo, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Andrea E Delitto
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL, USA
| | - Joao A Chaves de Souza
- Department of Stomatology, School of Dentistry, Federal University of Goias (UFG), Goiania, GO, Brazil
| | - Laura A G Maldonado
- Department of Diagnosis and Surgery, UNESP-State University of Sao Paulo, School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Shannon M Wallet
- Department of Foundational Sciences, College of Dental Medicine, East Carolina University, Greenville, NC, USA
| | - Carlos Rossa
- Department of Diagnosis and Surgery, UNESP-State University of Sao Paulo, School of Dentistry at Araraquara, Araraquara, SP, Brazil.
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25
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Xu S, Zhou Q, Fan C, Zhao H, Wang Y, Qiu X, Yang K, Ji Q. Doxycycline inhibits NAcht Leucine-rich repeat Protein 3 inflammasome activation and interleukin-1β production induced by Porphyromonas gingivalis-lipopolysaccharide and adenosine triphosphate in human gingival fibroblasts. Arch Oral Biol 2019; 107:104514. [PMID: 31394382 DOI: 10.1016/j.archoralbio.2019.104514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/01/2019] [Accepted: 08/01/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To investigate the effect of adenosine triphosphate (ATP) on inflammasome activation by Porphyromonas gingivalis-lipopolysaccharide (P. gingivalis-LPS) stimulation and the anti-inflammatory eff ;ect of doxycycline (Dox) in human gingival fibroblasts (HGFs). DESIGN The optimal concentration of P. gingivalis-LPS (1.0 μg/mL) for cellular viability was determined by observing cell morphology and measuring the amount of formazan and the expression of pro-caspase-1. The expression of genes and proteins related to the NAcht Leucine-rich repeat Protein 3 (NLRP3) inflammasome, including NLRP3, apoptosis-associated speck-like protein containing CARD (ASC), caspase-1 and its activated forms, and the inflammatory factor interleukin-1β (IL-1β) and its activated forms were measured. RESULTS The NLRP3 inflammasome (i.e., NLRP3, ASC, caspase-1) was not affected by stimulation with P. gingivalis-LPS or ATP. However, a combination of P. gingivalis-LPS and ATP significantly enhanced inflammasome activation and IL-1β production at the gene and protein levels as measured by quantitative real-time polymerase chain reaction (qRT-PCR) and western blot, respectively. Furthermore, doxycycline addition markedly inhibited inflammasome activation and IL-1β production induced by a combination of P. gingivalis-LPS and ATP. CONCLUSIONS LPS, ATP, and doxycycline play critical roles in regulating host immune responses. This evidence provides guidance for the application of tetracycline drugs for the clinical treatment of periodontal disease.
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Affiliation(s)
- Shuo Xu
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China; School of Stomatology of Qingdao University, Qingdao, 266003, China
| | - Qihui Zhou
- Institute for Translational Medicine, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266021, China
| | - Chun Fan
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Hongmei Zhao
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Yanwen Wang
- Stuart Country Day School of the Sacred Heart, 1200 Stuart Road, Princeton, NJ, 08628, United States
| | - Xiaohui Qiu
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China; School of Stomatology of Qingdao University, Qingdao, 266003, China
| | - Kai Yang
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China; School of Stomatology of Qingdao University, Qingdao, 266003, China
| | - Qiuxia Ji
- Department of Periodontology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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26
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Sulijaya B, Takahashi N, Yamazaki K. Host modulation therapy using anti-inflammatory and antioxidant agents in periodontitis: A review to a clinical translation. Arch Oral Biol 2019; 105:72-80. [PMID: 31288144 DOI: 10.1016/j.archoralbio.2019.07.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To highlight the shifting paradigm of periodontitis, describe mechanism of periodontal bone destruction, and propose an updated host modulation therapy (HMT) strategy. To add further clinical relevance, related studies investigating the efficacy of several HMT agents in periodontitis will be discussed. DESIGN Literature searches were conducted from articles published in PubMed using keywords "periodontal disease AND periodontitis AND host modulation therapy AND anti-inflammatory AND antioxidant", and then the findings were comprehensively summarized and elaborated. RESULT Accumulating evidence indicates that periodontitis is no longer defined solely as a pathogen-induced disease; rather, it is now recognized as a consequence of uncontrolled immune response and oxidative stress leading to periodontal tissue damage. Although periodontopathic bacteria initiate the disease, inflammation and oxidative stress were reported to be the main causes for the severity of tissue destruction. Thus, since the concept of periodontitis has shifted, our approach to its management needs to be adjusted to accommodate the latest paradigm. Nowadays, the modulation of inflammation and oxidative stress is considered a target of HMT. HMT agents, such as probiotics, anti-inflammatory drugs, anti-chemokines, lipid mediators, and bio-active fatty acids, have been extensively investigated for their remarkable functions in modulating the immune response and providing antioxidant effects. CONCLUSION Findings from in vitro, in vivo, and human studies frequently demonstrate positive association by the administration of HMT in periodontitis. HMT strategy targeted on anti-inflammatory and antioxidant in periodontitis might serve as an excellent therapeutic approach to reach the level of clinical benefit.
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Affiliation(s)
- Benso Sulijaya
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Division of Periodontology, Department of Oral Biological Science, Niigata University Faculty of Dentistry, Niigata, Japan; Department of Periodontology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Naoki Takahashi
- Division of Periodontology, Department of Oral Biological Science, Niigata University Faculty of Dentistry, Niigata, Japan; Research Center for Advanced Oral Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kazuhisa Yamazaki
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
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27
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Aoki-Nonaka Y, Tabeta K, Yokoji M, Matsugishi A, Matsuda Y, Takahashi N, Sulijaya B, Domon H, Terao Y, Taniguchi M, Yamazaki K. A peptide derived from rice inhibits alveolar bone resorption via suppression of inflammatory cytokine production. J Periodontol 2019; 90:1160-1169. [PMID: 31032912 DOI: 10.1002/jper.18-0630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Periodontitis is an inflammatory disease that results in alveolar bone resorption due to inflammatory cytokine production induced by bacterial antigens such as lipopolysaccharides (LPS). Here, the preventive effect of the Amyl-1-18 peptide derived from rice in an experimental model of periodontitis and the effect on the anti-inflammatory response were assessed. METHODS Alveolar bone resorption, gene transcription of proinflammatory cytokines in the gingiva, and the endotoxin level in the oral cavity were evaluated after oral administration of the Amyl-1-18 peptide for 14 days using a ligature-induced periodontitis model in mice. Additionally, murine macrophages were incubated with LPS of Escherichia coli or Porphyromonas gingivalis in the presence of Amyl-1-18 to analyze the suppressive effects of Amyl-1-18 on the cell signaling pathways associated with proinflammatory cytokine production, including inflammasome activities. RESULTS Oral administration of Amyl-1-18 suppressed alveolar bone resorption and gene transcription of interleukin (il)6 in the gingiva of the periodontitis model, and decreased endotoxin levels in the oral cavity, suggesting modulation of periodontal inflammation by inhibition of endotoxin activities in vivo. Also, Amyl-1-18 suppressed IL-6 production induced by LPS and recombinant IL-1β in macrophages in vitro but had no effect on inflammasome activity. CONCLUSIONS The Amyl-1-18 peptide from rice inhibited alveolar bone destruction in mouse periodontitis model via suppressing inflammatory cytokine production induced by LPS. It was suggested that Amyl-1-18 peptide has anti-inflammatory property against LPS, not only by neutralization of LPS and subsequent inhibition of nuclear factor-κB signaling but also by inhibition of the IL-1R-related signaling cascade.
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Affiliation(s)
- Yukari Aoki-Nonaka
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Koichi Tabeta
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Mai Yokoji
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.,Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Aoi Matsugishi
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.,Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yumi Matsuda
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naoki Takahashi
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.,Research Center for Advanced Oral Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Benso Sulijaya
- Division of Periodontology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.,Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.,Department of Periodontology, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Hisanori Domon
- Division of Microbiology and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yutaka Terao
- Division of Microbiology and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masayuki Taniguchi
- Department of Materials Science and Technology, Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Kazuhisa Yamazaki
- Research Unit for Oral-Systemic Connection, Division of Oral Science for Health Promotion, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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28
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Cao L, Chen Y, Zhang Z, Li Y, Zhao P. Endoplasmic Reticulum Stress-Induced NLRP1 Inflammasome Activation Contributes to Myocardial Ischemia/Reperfusion Injury. Shock 2019; 51:511-8. [DOI: 10.1097/shk.0000000000001175] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Kay JG, Kramer JM, Visser MB. Danger signals in oral cavity-related diseases. J Leukoc Biol 2019; 106:193-200. [PMID: 30776147 DOI: 10.1002/jlb.4mir1118-439r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/05/2019] [Accepted: 01/06/2019] [Indexed: 02/06/2023] Open
Abstract
The oral cavity is a unique environment containing teeth juxtaposed with soft tissues, all of which are constantly bathed in microbial products and host-derived factors. While microbial dysbiosis in the oral cavity clearly leads to oral inflammatory disease, recent advances find that endogenous danger-associated molecular patterns (DAMPs) released from oral and salivary tissue also contribute to the progression of inflammatory and autoimmune disease, respectively. In contrast, DAMPs produced during oral fungal infection actually promote the resolution of infection. Here, we present a review of the literature suggesting a role for signaling by DAMPs, which may intersect with pathogen-associated molecular pattern (PAMP) signaling, in diseases that manifest in the oral cavity, specifically periodontal disease, oropharyngeal candidiasis, and Sjögren's syndrome.
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Affiliation(s)
- Jason G Kay
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, New York, USA
| | - Jill M Kramer
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, New York, USA
| | - Michelle B Visser
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, Buffalo, New York, USA
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30
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Okano T, Ashida H, Suzuki S, Shoji M, Nakayama K, Suzuki T. Porphyromonas gingivalis triggers NLRP3-mediated inflammasome activation in macrophages in a bacterial gingipains-independent manner. Eur J Immunol 2018; 48:1965-1974. [PMID: 30280383 DOI: 10.1002/eji.201847658] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/12/2018] [Accepted: 10/01/2018] [Indexed: 12/21/2022]
Abstract
Porphyromonas gingivalis is a Gram-negative anaerobic bacterium that has been considered to be one of the bacteria associated with progression of human periodontitis. Subgingival biofilms formed by bacteria, including P. gingivalis, induce chronic inflammation, and activation of inflammasome in the gingival tissue. However, the mechanisms of P. gingivalis-triggering inflammasome activation and the role of bacteria-host interactions are controversial. In this study, we investigated the potential of P. gingivalis for triggering inflammasome activation in human cells and mouse models. We demonstrated that secreted or released factors from bacteria are involved in triggering NLR family, pyrin-domain containing 3 protein (NLRP3) inflammasome in a gingipain-independent manner. Our data indicated that released active caspase-1 and mature IL-1β are eliminated by proteolytic activity of secreted gingipains. These results elucidate the molecular bases for the mechanisms underlying P. gingivalis-triggered inflammasome activation.
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Affiliation(s)
- Tokuju Okano
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Ashida
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shiho Suzuki
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mikio Shoji
- Division of Microbiology and Oral Infection, Department of Molecular Microbiology and Immunology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Koji Nakayama
- Division of Microbiology and Oral Infection, Department of Molecular Microbiology and Immunology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Toshihiko Suzuki
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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31
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Lian D, Dai L, Xie Z, Zhou X, Liu X, Zhang Y, Huang Y, Chen Y. Periodontal ligament fibroblasts migration injury via ROS/TXNIP/Nlrp3 inflammasome pathway with Porphyromonas gingivalis lipopolysaccharide. Mol Immunol 2018; 103:209-219. [PMID: 30312877 DOI: 10.1016/j.molimm.2018.10.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/01/2018] [Accepted: 10/01/2018] [Indexed: 12/27/2022]
Abstract
Inflammasomes serve as an intracellular machinery to initiate inflammatory response to various danger signals. However, the chronic periodontitis pathological relevance of this inflammasome activation, particularly in periodontal ligament fibroblasts, remains largely unknown. The present study demonstrated that Nlrp3 inflammasome components abundantly expressed in cultured mouse periodontal ligament fibroblasts (mPDLFs). In addition, our data demonstrated that P.g-LPS (Porphyromonas gingivalis Lipopolysaccharide), a major injurious factor during chronic periodontitis, could induce the mPDLFs migration dysfunction and the inhibition of Nlrp3 inflammasome by Isoliquiritigenin (ISO) markedly recovered the migration dysfunction in mPDLFs. And Nlrp3 inflammasome components could be aggregated to form an inflammasome complex on stimulation of P.g-LPS, as shown by fluorescence confocal microscopy. Correspondingly, P.g-LPS induced Nlrp3 inflammasome activation, caspase-1 activation, IL-1β and HMGB1 release, which were blocked by Nlrp3 inflammasome inhibitor (ISO). Interestingly, reactive oxygen species, TXNIP protein and TXNIP binding to Nlrp3 were markedly increased in mPDLFs with P.g-LPS. Furthermore, ROS generation inhibitor (Apocynin; APO) significantly reduced Nlrp3 inflammasome formation and IL-1β production in mPDLFs with P.g-LPS. And APO attenuated P.g-LPS-induced TXNIP protein expression and mPDLFs injury. In conclusion, our results demonstrate that ROS/TXNIP/Nlrp3 Inflammasome pathway is a key initiating mechanism necessary for P.g-LPS-induced subsequent mPDLFs inflammatory response leading to chronic periodontitis.
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Affiliation(s)
- Dawei Lian
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
| | - Linfeng Dai
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
| | - Zhaoyu Xie
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
| | - Xing Zhou
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
| | - Xiaohong Liu
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
| | - Yang Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, 3455 CULLEN BLVD, Houston, TX, 77204-5037, USA
| | - Yi Huang
- Department of Stomatology, The First Affiliated Hospital, The school of Dental Medicine, Jinan University, No. 613W. Huangpu Avenue, Guangzhou, 510630, China.
| | - Yang Chen
- School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou, 510000, China.
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Abstract
Central nervous system (CNS) is one of the largest killers of people’s health all over the world. The overactivation of the immune and inflammatory responses is considered as an important factor, contributing to the pathogenesis and progression of CNS disorders. Among all kinds of immune and inflammatory reaction, the inflammasome, a complex of proteins, has been drawn increasingly attention to by researchers. The initiation and activation of the inflammasome is involved in the onset of various kinds of diseases. The NLRP3 inflammasome, the most studied member of the inflammasome, is closely associated with many kinds of CNS disorders. Here in this review, the roles of the NLRP3 inflammasome in the pathogenesis and progression of several well-known CNS diseases would be discussed, including cerebrovascular diseases, neurodegenerative diseases, multiple sclerosis, depression as well as other CNS disorders. In addition, several therapeutic strategies targeting on the NLRP3 inflammasome for the treatment of CNS disorders would be described in this review.
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Affiliation(s)
- Bo-Zong Shao
- Department of Pharmacology, Second Military Medical University, Shanghai, China
| | - Qi Cao
- Department of Pharmacology, Second Military Medical University, Shanghai, China
| | - Chong Liu
- Department of Pharmacology, Second Military Medical University, Shanghai, China
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