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Xu LT, Wang T, Fang KL, Zhao Y, Wang XN, Ren DM, Shen T. The ethanol extract of flower buds of Tussilago farfara L. attenuates cigarette smoke-induced lung inflammation through regulating NLRP3 inflammasome, Nrf2, and NF-κB. JOURNAL OF ETHNOPHARMACOLOGY 2022; 283:114694. [PMID: 34601084 DOI: 10.1016/j.jep.2021.114694] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 09/13/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The flower buds of Tussilago farfara L. (Abbreviated as FTF) were widely used in traditional Chinese medicine (TCM) to treat respiratory diseases, including asthma, dry throat, great thirst, turbid saliva, stinky pus, and coughs caused by various causes. AIM OF STUDY The aim of study is to explore the efficiency of FTF in vitro and in vivo for the treatment of lung inflammation, and to illustrate the possible mechanisms of FTF in treating inflammation-related respiratory diseases targeting NOD-like receptor 3 (NLRP3) inflammasome, nuclear factor erythroid 2-related factor 2 (Nrf2), and nuclear transcription factor-κB (NF-κB). METHODS Lung inflammation model in vivo was induced by exposure of mice to cigarette smoke (CS) for two weeks. The levels of superoxide dismutase (SOD), malondialdehyde (MDA), inflammatory factors, and histology in lung tissues were investigated in presence or absence of ethanol extract of the flower buds of T. farfara L. (FTF-EtOH). In the cell-based models, nitric oxide (NO) assay, flow cytometry assay, enzyme-linked immunosorbent assay (Elisa), and glutathione (GSH) assay were used to explore the anti-inflammatory and anti-oxidant effects of FTF-EtOH. Possible anti-inflammatory mechanisms of FTF targeting NLRP3 inflammasome, Nrf2, and NF-κB have been determined using western blot, quantitative real-time reverse transcriptase-polymerase chain reaction (qRT-PCR), immunofluorescence assay, nuclear and cytoplasmic extraction, and ubiqutination assay. RESULTS FTF-EtOH suppressed CS-induced overproduction of inflammatory factors [e.g., tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β)], and upregulation of the content of intracellular MDA in the lung homogenate of mice. In cell-based models, FTF-EtOH reduced the lipopolysaccharide (LPS)-induced overproduction of inflammatory factors, and attenuated the CS extract-induced overgeneration of reactive oxygen species (ROS). Furthermore, FTF-EtOH up-regulated Nrf2 and its downstream genes through enhancing the stability of Nrf2 protein, and inhibited the activation of NF-κB and NLRP3 inflammasome, which have been confirmed by detecting the protein levels in the mouse model. CONCLUSIONS FTF-EtOH effectively attenuated lung inflammation in vitro and in vivo. The protection of FTF-EtOH against inflammation was produced by activation of Nrf2 and inhibitions of NF-κB and NLRP3 inflammasome. These datas definitely support the ethnopharmacological use of FTF as an anti-inflammatory drug for treating respiratory diseases in TCM.
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Affiliation(s)
- Lin-Tao Xu
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Tian Wang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Kai-Li Fang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Yu Zhao
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Xiao-Ning Wang
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Dong-Mei Ren
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.
| | - Tao Shen
- Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China.
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Theofani E, Semitekolou M, Samitas K, Mais A, Galani IE, Triantafyllia V, Lama J, Morianos I, Stavropoulos A, Jeong S, Andreakos E, Razani B, Rovina N, Xanthou G. TFEB signaling attenuates NLRP3-driven inflammatory responses in severe asthma. Allergy 2022; 77:2131-2146. [PMID: 35038351 DOI: 10.1111/all.15221] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 12/20/2021] [Accepted: 12/26/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND NLRP3-driven inflammatory responses by circulating and lung-resident monocytes are critical drivers of asthma pathogenesis. Autophagy restrains NLRP3-induced monocyte activation in asthma models. Yet, the effects of autophagy and its master regulator, transcription factor EB (TFEB), on monocyte responses in human asthma remain unexplored. Here, we investigated whether activation of autophagy and TFEB signaling suppress inflammatory monocyte responses in asthmatic individuals. METHODS Peripheral blood CD14+ monocytes from asthmatic patients (n = 83) and healthy controls (n = 46) were stimulated with LPS/ATP to induce NLRP3 activation with or without the autophagy inducer, rapamycin. ASC specks, caspase-1 activation, IL-1β and IL-18 levels, mitochondrial function, ROS release, and mTORC1 signaling were examined. Autophagy was evaluated by LC3 puncta formation, p62/SQSTM1 degradation and TFEB activation. In a severe asthma (SA) model, we investigated the role of NLRP3 signaling using Nlrp3-/- mice and/or MCC950 administration, and the effects of TFEB activation using myeloid-specific TFEB-overexpressing mice or administration of the TFEB activator, trehalose. RESULTS We observed increased NLRP3 inflammasome activation, concomitant with impaired autophagy in circulating monocytes that correlated with asthma severity. SA patients also exhibited mitochondrial dysfunction and ROS accumulation. Autophagy failed to inhibit NLRP3-driven monocyte responses, due to defective TFEB activation and excessive mTORC1 signaling. NLRP3 blockade restrained inflammatory cytokine release and linked airway disease. TFEB activation restored impaired autophagy, attenuated NLRP3-driven pulmonary inflammation, and ameliorated SA phenotype. CONCLUSIONS Our studies uncover a crucial role for TFEB-mediated reprogramming of monocyte inflammatory responses, raising the prospect that this pathway can be therapeutically harnessed for the management of SA.
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Affiliation(s)
- Efthymia Theofani
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
- 1st Department of Respiratory Medicine Medical School ‘Sotiria’ Athens Chest Diseases HospitalNational Kapodistrian University of Athens Athens Greece
| | - Maria Semitekolou
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
| | - Konstantinos Samitas
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
- 7th Respiratory Clinic and Asthma Center of the ‘Sotiria’ Athens Chest Hospital Athens Greece
| | - Annie Mais
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
| | - Ioanna E. Galani
- Laboratory of Immunobiology Center for Clinical, Experimental Surgery and Translational Research BRFAA Athens Greece
| | - Vasiliki Triantafyllia
- Laboratory of Immunobiology Center for Clinical, Experimental Surgery and Translational Research BRFAA Athens Greece
| | - Joanna Lama
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
| | - Ioannis Morianos
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
| | - Athanasios Stavropoulos
- Laboratory of Immunobiology Center for Clinical, Experimental Surgery and Translational Research BRFAA Athens Greece
| | - Se‐Jin Jeong
- Department of Medicine Cardiovascular Division, and Department of Pathology & Immunology Washington University School of Medicine St. Louis Missouri USA
| | - Evangelos Andreakos
- Laboratory of Immunobiology Center for Clinical, Experimental Surgery and Translational Research BRFAA Athens Greece
| | - Babak Razani
- Department of Medicine Cardiovascular Division, and Department of Pathology & Immunology Washington University School of Medicine St. Louis Missouri USA
- John Cochran VA Medical Center St. Louis Missouri USA
| | - Nikoletta Rovina
- 1st Department of Respiratory Medicine Medical School ‘Sotiria’ Athens Chest Diseases HospitalNational Kapodistrian University of Athens Athens Greece
| | - Georgina Xanthou
- Cellular Immunology Laboratory Center for Basic Research Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece
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Exosomes derived from adipose-derived stem cells alleviate cigarette smoke-induced lung inflammation and injury by inhibiting alveolar macrophages pyroptosis. Respir Res 2022; 23:5. [PMID: 35016678 PMCID: PMC8753876 DOI: 10.1186/s12931-022-01926-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/03/2022] [Indexed: 02/08/2023] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is a frequently encountered disease condition in clinical practice mainly caused by cigarette smoke (CS). The aim of this study was to investigate the protective roles of human adipose-derived stem cells-derived exosomes (ADSCs-Exo) in CS-induced lung inflammation and injury and explore the underlying mechanism by discovering the effects of ADSCs-Exo on alveolar macrophages (AMs) pyroptosis. Methods ADSCs were isolated from human adipose tissues harvested from three healthy donors, and then ADSCs-Exo were isolated. In vivo, 24 age-matched male C57BL/6 mice were exposed to CS for 4 weeks, followed by intratracheal administration of ADSCs-Exo or phosphate buffered saline. In vitro, MH-S cells, derived from mouse AMs, were stimulated by 2% CS extract (CSE) for 24 h, followed by the treatment of ADSCs-Exo or phosphate buffered saline. Pulmonary inflammation was analyzed by detecting pro-inflammatory cells and mediators in the bronchoalveolar lavage fluid. Lung histology was assessed by hematoxylin and eosin staining. Mucus production was determined by Alcian blue-periodic acid-Schiff staining. The profile of AMs pyroptosis was evaluated by detecting the levels of pyroptosis-indicated proteins. The inflammatory response in AMs and the phagocytic activity of AMs were also investigated. Results In mice exposed to CS, the levels of pro-inflammatory cells and mediators were significantly increased, mucus production was markedly increased and lung architecture was obviously disrupted. AMs pyroptosis was elevated and AMs phagocytosis was inhibited. However, the administration of ADSCs-Exo greatly reversed these alterations caused by CS exposure. Consistently, in MH-S cells with CSE-induced properties modelling those found in COPD, the cellular inflammatory response was elevated, the pyroptotic activity was upregulated while the phagocytosis was decreased. Nonetheless, these abnormalities were remarkably alleviated by the treatment of ADSCs-Exo. Conclusions ADSCs-Exo effectively attenuate CS-induced airway mucus overproduction, lung inflammation and injury by inhibiting AMs pyroptosis. Therefore, hADSCs-Exo may be a promising cell-free therapeutic candidate for CS-induced lung inflammation and injury. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-01926-w.
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Ding K, Chen J, Zhan W, Zhang S, Chen Y, Long S, Lei M. Microbiome Links Cigarette Smoke-Induced Chronic Obstructive Pulmonary Disease and Dietary Fiber via the Gut-Lung Axis: A Narrative Review. COPD 2021; 19:10-17. [PMID: 34963421 DOI: 10.1080/15412555.2021.2019208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Existing comprehensive management strategies for COPD effectively relieve the symptoms of patients, delay the deterioration of lung function, and prevent the progression of COPD through various means and multidisciplinary interventions. However, there has been limited progress in therapies that address the underlying causes of COPD pathogenesis. Recent studies have identified specific changes in the gut and pulmonary microbiota in response to exposure to smoke that can cause or exacerbate CS-COPD by regulating the inflammatory immune response in the lungs through the gut-lung axis. As a convenient and controllable intervention, modifying the diet to include more dietary fiber can effectively improve the prognosis of CS-COPD. Gut microbiota ferment dietary fiber to produce short-chain fatty acids, which connect the microbial communities in the lung and gut mucosa across the gut-lung axis, playing an anti-inflammatory and immunosuppressive role in the lungs. Given that the effect of dietary fiber on gut microbiota was highly similar to that of quitting smoking on gut microbiota, we assume that microbiota might be a potential therapeutic target for dietary fiber to alleviate and prevent CS-COPD. This study examines the similarities between pulmonary and gut microbiota changes in the presence of smoking and dietary fiber. It also highlights the mechanism by which SCFAs link pulmonary and gut microbiota in CS-COPD and analyzes the anti-inflammatory and immunomodulatory effects of short-chain fatty acids on CS-COPD via the gut-lung axis.
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Affiliation(s)
- Kaixi Ding
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jieling Chen
- Department of Respiration, Shehong Hospital of Traditional Chinese Medicine, Shehong, China
| | - Wenling Zhan
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shipeng Zhang
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Chen
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sipei Long
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ming Lei
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Chen X, Xiao Z, Jiang Z, Jiang Y, Li W, Wang M. Schisandrin B Attenuates Airway Inflammation and Airway Remodeling in Asthma by Inhibiting NLRP3 Inflammasome Activation and Reducing Pyroptosis. Inflammation 2021; 44:2217-2231. [PMID: 34143347 DOI: 10.1007/s10753-021-01494-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 05/17/2021] [Accepted: 05/27/2021] [Indexed: 01/20/2023]
Abstract
Asthma is a chronic inflammatory disorder of the airways. Schisandrin B (SB) is the main effective component. This study investigated the effects of SB on airway inflammation and airway remodeling in asthma. The rat model of asthma was established. The rats were treated with SB to evaluate the effects of SB on airway inflammation, airway remodeling, NLRP3 inflammasome activation, and pyroptosis. Alveolar macrophages of rats were isolated, and the macrophage inflammatory model was established by lipopolysaccharide (LPS) induction. The LPS-induced macrophages were treated with SB. The binding relationship between miR-135a-5p and TPRC1 was analyzed. LPS + SB-treated macrophages were transfected with miR-135a-5p inhibitor. The expressions of key factors of the STAT3/NF-κB pathway were detected. SB reduced airway inflammation and airway remodeling in asthmatic rats. SB inhibited NLRP3 inflammasome activation and reduced pyroptosis in asthmatic rats and LPS-induced macrophages. SB reversely regulated the miR-135a-5p/TRPC1 axis. Downregulation of miR-135a-5p attenuated the inhibitory effect of SB on NLRP3 inflammasome activation. SB inhibited the STAT3/NF-κB pathway via the miR-135a-5p/TRPC1 axis. In conclusion, SB inhibited NLRP3 inflammasome activation and reduced pyroptosis via the miR-135a-5p/TRPC1/STAT3/NF-κB axis, thus alleviating airway inflammation and airway remodeling in asthma. This study may confer novel insights for the management of asthma.
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Affiliation(s)
- Xiufeng Chen
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China
| | - Zhen Xiao
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China.
| | - Zhiyan Jiang
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China.
| | - Yonghong Jiang
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China
| | - Wen Li
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China
| | - Mingjing Wang
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China
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Mold, Mycotoxins and a Dysregulated Immune System: A Combination of Concern? Int J Mol Sci 2021; 22:ijms222212269. [PMID: 34830149 PMCID: PMC8619365 DOI: 10.3390/ijms222212269] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 12/14/2022] Open
Abstract
Fungi represent one of the most diverse and abundant eukaryotes on earth. The interplay between mold exposure and the host immune system is still not fully elucidated. Literature research focusing on up-to-date publications is providing a heterogenous picture of evidence and opinions regarding the role of mold and mycotoxins in the development of immune diseases. While the induction of allergic immune responses by molds is generally acknowledged, other direct health effects like the toxic mold syndrome are controversially discussed. However, recent observations indicate a particular importance of mold/mycotoxin exposure in individuals with pre-existing dysregulation of the immune system, due to exacerbation of underlying pathophysiology including allergic and non-allergic chronic inflammatory diseases, autoimmune disorders, and even human immunodeficiency virus (HIV) disease progression. In this review, we focus on the impact of mycotoxins regarding their impact on disease progression in pre-existing immune dysregulation. This is complemented by experimental in vivo and in vitro findings to present cellular and molecular modes of action. Furthermore, we discuss hypothetical mechanisms of action, where evidence is missing since much remains to be discovered.
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Detection of Cytokines and Collectins in Bronchoalveolar Fluid Samples of Patients Infected with Histoplasma capsulatum and Pneumocystis jirovecii. J Fungi (Basel) 2021; 7:jof7110938. [PMID: 34829225 PMCID: PMC8623738 DOI: 10.3390/jof7110938] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/21/2022] Open
Abstract
Histoplasmosis and pneumocystosis co-infections have been reported mainly in immunocompromised humans and in wild animals. The immunological response to each fungal infection has been described primarily using animal models; however, the host response to concomitant infection is unknown. The present work aimed to evaluate the pulmonary immunological response of patients with pneumonia caused either by Histoplasma capsulatum, Pneumocystis jirovecii, or their co-infection. We analyzed the pulmonary collectin and cytokine patterns of 131 bronchoalveolar lavage samples, which included HIV and non-HIV patients infected with H. capsulatum, P. jirovecii, or both fungi, as well as healthy volunteers and HIV patients without the studied fungal infections. Our results showed an increased production of the surfactant protein-A (SP-A) in non-HIV patients with H. capsulatum infection, contrasting with HIV patients (p < 0.05). Significant differences in median values of SP-A, IL-1β, TNF-α, IFN-γ, IL-18, IL-17A, IL-33, IL-13, and CXCL8 were found among all the groups studied, suggesting that these cytokines play a role in the local inflammatory processes of histoplasmosis and pneumocystosis. Interestingly, non-HIV patients with co-infection and pneumocystosis alone showed lower levels of SP-A, IL-1β, TNF-α, IFN-γ, IL-18, IL-17A, and IL-23 than histoplasmosis patients, suggesting an immunomodulatory ability of P. jirovecii over H. capsulatum response.
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Chen Z, Wang B, Dong J, Li Y, Zhang S, Zeng X, Xiao H, Fan S, Cui M. Gut Microbiota-Derived l-Histidine/Imidazole Propionate Axis Fights against the Radiation-Induced Cardiopulmonary Injury. Int J Mol Sci 2021; 22:ijms222111436. [PMID: 34768867 PMCID: PMC8584084 DOI: 10.3390/ijms222111436] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/17/2021] [Accepted: 10/21/2021] [Indexed: 12/23/2022] Open
Abstract
Radiation-induced cardiopulmonary injuries are the most common and intractable side effects that are entwined with radiotherapy for thorax cancers. However, the therapeutic options for such complications have yielded disappointing results in clinical applications. Here, we reported that gut microbiota-derived l-Histidine and its secondary metabolite imidazole propionate (ImP) fought against radiation-induced cardiopulmonary injury in an entiric flora-dependent manner in mouse models. Local chest irradiation decreased the level of l-Histidine in fecal pellets, which was increased following fecal microbiota transplantation. l-Histidine replenishment via an oral route retarded the pathological process of lung and heart tissues and improved lung respiratory and heart systolic function following radiation exposure. l-Histidine preserved the gut bacterial taxonomic proportions shifted by total chest irradiation but failed to perform radioprotection in gut microbiota-deleted mice. ImP, the downstream metabolite of l-Histidine, accumulated in peripheral blood and lung tissues following l-Histidine replenishment and protected against radiation-induced lung and heart toxicity. Orally gavaged ImP could not enter into the circulatory system in mice through an antibiotic cocktail treatment. Importantly, ImP inhibited pyroptosis to nudge lung cell proliferation after radiation challenge. Together, our findings pave a novel method of protection against cardiopulmonary complications intertwined with radiotherapy in pre-clinical settings and underpin the idea that gut microbiota-produced l-Histidine and ImP are promising radioprotective agents.
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Affiliation(s)
- Zhiyuan Chen
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Bin Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Jiali Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Yuan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Shuqin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Xiaozhou Zeng
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Huiwen Xiao
- Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China
- Correspondence: (H.X.); (M.C.)
| | - Saijun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
| | - Ming Cui
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China; (Z.C.); (B.W.); (J.D.); (Y.L.); (S.Z.); (X.Z.); (S.F.)
- Correspondence: (H.X.); (M.C.)
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Devkota HP, Paudel KR, Jha NK, Gupta PK, Singh SK, Chellappan DK, Hansbro PM, Dua K. Applications of drug-delivery systems targeting inflammasomes in pulmonary diseases. Nanomedicine (Lond) 2021; 16:2407-2410. [PMID: 34670398 DOI: 10.2217/nnm-2021-0275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Hari P Devkota
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chou-ku, Kumamoto City, Kumamoto, 862-0973, Japan
| | - Keshav R Paudel
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.,Centre for Inflammation, Centenary Institute, Sydney, NSW, 2050, Australia
| | - Niraj K Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Plot No. 32-34, Knowledge Park III, Greater Noida, Uttar Pradesh, 201310, India
| | - Piyush K Gupta
- Department of Life Sciences, School of Basic Sciences and Research (SBSR), Sharda University, Knowledge Park III, Greater Noida, 201310, Uttar Pradesh, India
| | - Sachin K Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Dinesh K Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Philip M Hansbro
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.,Centre for Inflammation, Centenary Institute, Sydney, NSW, 2050, Australia
| | - Kamal Dua
- Centre for Inflammation, Centenary Institute, Sydney, NSW, 2050, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, 2007, Australia
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Pinkerton JW, Kim RY, Brown AC, Rae BE, Donovan C, Mayall JR, Carroll OR, Khadem Ali M, Scott HA, Berthon BS, Baines KJ, Starkey MR, Kermani NZ, Guo YK, Robertson AAB, O'Neill LAJ, Adcock IM, Cooper MA, Gibson PG, Wood LG, Hansbro PM, Horvat JC. Relationship between type 2 cytokine and inflammasome responses in obesity-associated asthma. J Allergy Clin Immunol 2021; 149:1270-1280. [PMID: 34678326 DOI: 10.1016/j.jaci.2021.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 09/22/2021] [Accepted: 10/01/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Obesity is a risk factor for asthma, and obese asthmatic individuals are more likely to have severe, steroid-insensitive disease. How obesity affects the pathogenesis and severity of asthma is poorly understood. Roles for increased inflammasome-mediated neutrophilic responses, type 2 immunity, and eosinophilic inflammation have been described. OBJECTIVE We investigated how obesity affects the pathogenesis and severity of asthma and identified effective therapies for obesity-associated disease. METHODS We assessed associations between body mass index and inflammasome responses with type 2 (T2) immune responses in the sputum of 25 subjects with asthma. Functional roles for NLR family, pyrin domain-containing (NLRP) 3 inflammasome and T2 cytokine responses in driving key features of disease were examined in experimental high-fat diet-induced obesity and asthma. RESULTS Body mass index and inflammasome responses positively correlated with increased IL-5 and IL-13 expression as well as C-C chemokine receptor type 3 expression in the sputum of subjects with asthma. High-fat diet-induced obesity resulted in steroid-insensitive airway hyperresponsiveness in both the presence and absence of experimental asthma. High-fat diet-induced obesity was also associated with increased NLRP3 inflammasome responses and eosinophilic inflammation in airway tissue, but not lumen, in experimental asthma. Inhibition of NLRP3 inflammasome responses reduced steroid-insensitive airway hyperresponsiveness but had no effect on IL-5 or IL-13 responses in experimental asthma. Depletion of IL-5 and IL-13 reduced obesity-induced NLRP3 inflammasome responses and steroid-insensitive airway hyperresponsiveness in experimental asthma. CONCLUSION We found a relationship between T2 cytokine and NLRP3 inflammasome responses in obesity-associated asthma, highlighting the potential utility of T2 cytokine-targeted biologics and inflammasome inhibitors.
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Affiliation(s)
- James W Pinkerton
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Airway Disease Section, National Heart & Lung Institute, Imperial College London, London, United Kingdom
| | - Richard Y Kim
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Centre for Inflammation, Centenary Institute and University of Technology Sydney, School of Life Sciences, Faculty of Science, Sydney, Australia
| | - Alexandra C Brown
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Brittany E Rae
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Chantal Donovan
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Centre for Inflammation, Centenary Institute and University of Technology Sydney, School of Life Sciences, Faculty of Science, Sydney, Australia
| | - Jemma R Mayall
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Olivia R Carroll
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Md Khadem Ali
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, Calif
| | - Hayley A Scott
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Bronwyn S Berthon
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Katherine J Baines
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Malcolm R Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Australia; Priority Research Centre GrowUpWell, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Nazanin Z Kermani
- Data Science Institute, Department of Computing, Imperial College London, London, United Kingdom
| | - Yi-Ke Guo
- Data Science Institute, Department of Computing, Imperial College London, London, United Kingdom
| | - Avril A B Robertson
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Australia
| | - Luke A J O'Neill
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ian M Adcock
- Airway Disease Section, National Heart & Lung Institute, Imperial College London, London, United Kingdom
| | - Matthew A Cooper
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Peter G Gibson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Centre for Inflammation, Centenary Institute and University of Technology Sydney, School of Life Sciences, Faculty of Science, Sydney, Australia
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia.
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Tian X, Xue Y, Xie G, Zhou Y, Xiao H, Ding F, Zhang M. (-)-Epicatechin ameliorates cigarette smoke-induced lung inflammation via inhibiting ROS/NLRP3 inflammasome pathway in rats with COPD. Toxicol Appl Pharmacol 2021; 429:115674. [PMID: 34403689 DOI: 10.1016/j.taap.2021.115674] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/29/2021] [Accepted: 08/05/2021] [Indexed: 11/19/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) with increased morbidity and mortality is a worldwide healthcare challenge closely associated with cigarette smoking (CS). Currently, there is no effective therapeutic strategy to control inflammation in COPD patients. The present study tested the protective effects of (-)-Epicatechin (EC), a type of flavonoid, on CS-induced COPD and the underlying mechanism. Also, EC repressed the production of reactive oxygen species (ROS) and improved human bronchial epithelial cell viability after cigarette smoke extract (CSE) treatment. Further studies demonstrated that EC promotes ubiquitin-mediated Keap1 degradation by upregulating tripartite motif-containing protein 25 (TRIM25) expression and enhances the nuclear localization of Nrf2 protein. Also, EC dramatically inhibits the activation of NLRP3 inflammasome and reduces the CSE-induced pyroptosis, as indicated by decreasing lactate dehydrogenase release and the number of caspase-1-positive cells. Importantly, Nrf2 knockdown reversed the protective effect of EC on human bronchial epithelial cells, at least partially. Consistent with the results in vitro, EC inhibits the activation of NLRP3 inflammasome and relieves the CS-induced lung inflammation, as evident from decreased interleukin (IL)-1β and IL-18 secretion in a COPD rat model. In conclusion, this study revealed the protective effect of EC on experimental COPD rats and elucidated the mechanism of EC promoting Nrf2 activity, which might provide a novel therapeutic strategy for COPD.
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Affiliation(s)
- Xue Tian
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China
| | - Yishu Xue
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China
| | - Guogang Xie
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China
| | - Yan Zhou
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China
| | - Hui Xiao
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China
| | - Fengming Ding
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China
| | - Min Zhang
- Department of Respiratory and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine,100 Haining Road, Shanghai 200080, PR China..
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62
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Christie MJ, Irving AT, Forster SC, Marsland BJ, Hansbro PM, Hertzog PJ, Nold-Petry CA, Nold MF. Of bats and men: Immunomodulatory treatment options for COVID-19 guided by the immunopathology of SARS-CoV-2 infection. Sci Immunol 2021; 6:eabd0205. [PMID: 34533977 DOI: 10.1126/sciimmunol.abd0205] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
[Figure: see text].
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Affiliation(s)
- Michael J Christie
- Department of Paediatrics, Monash University, Melbourne, Victoria 3168, Australia.,Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria 3168, Australia
| | - Aaron T Irving
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Haining 314400, China
| | - Samuel C Forster
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Melbourne, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Melbourne, Victoria, Australia
| | - Benjamin J Marsland
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW 2050, Australia.,Centre for Inflammation, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Paul J Hertzog
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Melbourne, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Melbourne, Victoria, Australia
| | - Claudia A Nold-Petry
- Department of Paediatrics, Monash University, Melbourne, Victoria 3168, Australia.,Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria 3168, Australia
| | - Marcel F Nold
- Department of Paediatrics, Monash University, Melbourne, Victoria 3168, Australia.,Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria 3168, Australia.,Monash Newborn, Monash Children's Hospital, Melbourne, Victoria, Australia
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63
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Xiao C, Cheng S, Li R, Wang Y, Zeng D, Jiang H, Liang Y, Huang R, Pan H, Wu X, Fang Y, Chen C, Li X, Zhang R, Wang X, Yang Z, Yang W. Isoforskolin Alleviates AECOPD by Improving Pulmonary Function and Attenuating Inflammation Which Involves Downregulation of Th17/IL-17A and NF-κB/NLRP3. Front Pharmacol 2021; 12:721273. [PMID: 34393799 PMCID: PMC8361481 DOI: 10.3389/fphar.2021.721273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 06/28/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD), a major cause of morbidity and mortality worldwide, is widely considered to be related to cigarette smoke (CS), and viral infections trigger acute exacerbation of COPD (AECOPD). Isoforskolin (ISOF) is a bioactive component from the plant Coleus forskohlii, native to Yunnan in China. It has been demonstrated that ISOF has anti-inflammatory effect on acute lung injury animal models. In the present study, we investigated the efficacy and mechanism of ISOF for the prevention and treatment of AECOPD. Mice were exposed to CS for 18 weeks and then infected with influenza virus A/Puerto Rico/8/34 (H1N1). ISOF (0.5, 2 mg/kg) was intragastrically administered once a day after 8 weeks of exposure to cigarette smoke when the body weight and lung function of model mice declined significantly. The viral load, pulmonary function, lung morphology, Th17 cells, and inflammatory cytokines in lung tissues were evaluated. The expression of nuclear factor κB (NF-κB) and NOD-like receptor pyrin domain–containing protein 3 (NLRP3) inflammasome pathways were detected. The results showed that ISOF treatment reduced the viral load in the lung homogenate, decreased the lung index of model mice, and lung pathological injuries were alleviated. ISOF also improved the pulmonary function with increased FEV0.1/FVC and decreased Rn and Rrs. The levels of inflammatory mediators (TNF-α, IL-1β, IL-6, IL-17A, MCP-1, MIG, IP-10, and CRP) in the lung homogenate were reduced after ISOF treatment. ISOF decreased the proportion of Th17 cells in the lung tissues by the flow cytometry test, and the protein expression levels of RORγt and p-STAT3 were also decreased. Furthermore, ISOF significantly inhibited the activation of NF-κB signaling and NLRP3 inflammasome in the lung tissues of model mice. In conclusion, ISOF alleviates AECOPD by improving pulmonary function and attenuating inflammation via the downregulation of proinflammatory cytokines, Th17/IL-17 A, and NF-κB/NLRP3 pathways.
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Affiliation(s)
- Chuang Xiao
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Sha Cheng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Runfeng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yutao Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Deyou Zeng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Haiming Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yaping Liang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Rong Huang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Hanxiao Pan
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Xiao Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yan Fang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Chen Chen
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Xian Li
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Rongping Zhang
- School of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, China
| | - Xinhua Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zifeng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Weimin Yang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
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64
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Nizami S, Millar V, Arunasalam K, Zarganes-Tzitzikas T, Brough D, Tresadern G, Brennan PE, Davis JB, Ebner D, Di Daniel E. A phenotypic high-content, high-throughput screen identifies inhibitors of NLRP3 inflammasome activation. Sci Rep 2021; 11:15319. [PMID: 34321581 PMCID: PMC8319173 DOI: 10.1038/s41598-021-94850-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 07/13/2021] [Indexed: 12/26/2022] Open
Abstract
Inhibition of the NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome has recently emerged as a promising therapeutic target for several inflammatory diseases. After priming and activation by inflammation triggers, NLRP3 forms a complex with apoptosis-associated speck-like protein containing a CARD domain (ASC) followed by formation of the active inflammasome. Identification of inhibitors of NLRP3 activation requires a well-validated primary high-throughput assay followed by the deployment of a screening cascade of assays enabling studies of structure–activity relationship, compound selectivity and efficacy in disease models. We optimized a NLRP3-dependent fluorescent tagged ASC speck formation assay in murine immortalized bone marrow-derived macrophages and utilized it to screen a compound library of 81,000 small molecules. Our high-content screening assay yielded robust assay metrics and identified a number of inhibitors of NLRP3-dependent ASC speck formation, including compounds targeting HSP90, JAK and IKK-β. Additional assays to investigate inflammasome priming or activation, NLRP3 downstream effectors such as caspase-1, IL-1β and pyroptosis form the basis of a screening cascade to identify NLRP3 inflammasome inhibitors in drug discovery programs.
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Affiliation(s)
- Sohaib Nizami
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Val Millar
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,National Phenotypic Screening Centre, Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Kanisa Arunasalam
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Tryfon Zarganes-Tzitzikas
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - David Brough
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, AV Hill Building, Oxford Road, Manchester, M13 9PT, UK.,Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, M13 9PT, UK
| | - Gary Tresadern
- Janssen Research and Development, Turnhoutseweg 30, 2340, Beerse, Belgium
| | - Paul E Brennan
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - John B Davis
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Daniel Ebner
- Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK. .,National Phenotypic Screening Centre, Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.
| | - Elena Di Daniel
- Alzheimer's Research UK Oxford Drug Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK. .,Target Discovery Institute, NDM Research Building, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford, OX3 7FZ, UK.
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65
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Kaur D, Chachi L, Gomez E, Sylvius N, Brightling CE. Interleukin-18, IL-18 binding protein and IL-18 receptor expression in asthma: a hypothesis showing IL-18 promotes epithelial cell differentiation. Clin Transl Immunology 2021; 10:e1301. [PMID: 34194747 PMCID: PMC8234286 DOI: 10.1002/cti2.1301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/26/2021] [Accepted: 05/29/2021] [Indexed: 01/15/2023] Open
Abstract
Objective In asthma, genome‐wide association studies have shown that interleukin‐18 (IL‐18) receptor 1 gene (IL‐18R1) and sputum IL‐18 are increased during exacerbations. However, the role of the IL‐18 axis in bronchial epithelial function is unclear. To investigate IL‐18, IL‐18 binding protein (BP) and IL‐18R expression in bronchial biopsies and sputum samples from patients with asthma, and to determine its functional role using in vitro bronchial epithelial cells. Methods The expression of IL‐18, IL‐18BP and IL‐18Rα was examined in subjects with asthma and healthy controls in bronchial biopsies by immunohistochemistry and IL‐18 and IL‐18BP release in sputum. In epithelial cells, the mRNA and protein expression of IL‐18, IL‐18BP, IL‐18Rα and IL‐18Rβ was assessed by qPCR, flow cytometry, Western blotting and immunofluorescence respectively. IL‐18 function in epithelial cells was examined by intracellular calcium, wound repair, synthetic activation and epithelial differentiation changes. Results In biopsies from subjects with asthma, the IL‐18 expression was not different in the lamina propria compared with controls but was decreased in the epithelium. In contrast, the IL‐18BP was decreased in the lamina propria in asthma and was absent in the bronchial epithelium. IL‐18 was released in sputum with IL‐18BP elevated in patients with asthma. The IL‐18Rα expression was not different between health and disease. In vitro, IL‐18‐stimulated bronchial epithelial cells increased intracellular calcium, wound repair, metabolic activity, morphological changes and epithelial cellular differentiation. Conclusion In asthma, the dynamic interaction between IL‐18, its cognate receptor and natural inhibitor is complex, with differences between airway compartments. Upregulation of IL‐18 can promote epithelial activation and cellular differentiation.
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Affiliation(s)
- Davinder Kaur
- Department of Respiratory Sciences Institute for Lung Health NIHR Biomedical Research Centre University of Leicester Leicester LE1 7RH UK
| | - Latifa Chachi
- Department of Respiratory Sciences Institute for Lung Health NIHR Biomedical Research Centre University of Leicester Leicester LE1 7RH UK
| | - Edith Gomez
- Department of Respiratory Sciences Institute for Lung Health NIHR Biomedical Research Centre University of Leicester Leicester LE1 7RH UK
| | - Nicolas Sylvius
- Genomic Core Facility Department of Genetics University of Leicester Adrian Building, University Road, G23 Leicester LE1 7RH UK
| | - Christopher E Brightling
- Department of Respiratory Sciences Institute for Lung Health NIHR Biomedical Research Centre University of Leicester Leicester LE1 7RH UK
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66
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Lu Z, Van Eeckhoutte HP, Liu G, Nair PM, Jones B, Gillis CM, Nalkurthi BC, Verhamme F, Buyle-Huybrecht T, Vandenabeele P, Berghe TV, Brusselle GG, Horvat JC, Murphy JM, Wark PA, Bracke KR, Fricker M, Hansbro PM. Necroptosis Signalling Promotes Inflammation, Airway Remodelling and Emphysema in COPD. Am J Respir Crit Care Med 2021; 204:667-681. [PMID: 34133911 DOI: 10.1164/rccm.202009-3442oc] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Necroptosis, mediated by RIPK3 and MLKL, is a form of regulated necrosis that can drive tissue inflammation and destruction, however its contribution to COPD pathogenesis is poorly understood. OBJECTIVES To determine the role of necroptosis in COPD. METHODS Levels of RIPK3, MLKL and activated phospho-MLKL were measured in lung tissues of COPD patients and non-COPD controls. Necroptosis-related mRNA and proteins and cell death were examined in the lungs and pulmonary macrophages of mice with cigarette smoke (CS)-induced experimental COPD. The responses of Ripk3- and Mlkl-deficient (-/-) mice to CS exposure were compared to wild-type mice. Combined inhibition of apoptosis (pan-caspase inhibitor qVD-OPh) and necroptosis (Mlkl-/- mice) was assessed. MEASUREMENTS AND MAIN RESULTS Protein levels of MLKL and pMLKL but not RIPK3 were increased in lung tissues of COPD patients compared to never smokers or smoker non-COPD controls. Necroptosis-related mRNA and protein levels were increased in lung tissue and macrophages in CS-exposed mice/experimental COPD. Ripk3 or Mlkl deletion prevented airway inflammation in response to acute CS-exposure. Ripk3 deficiency reduced airway inflammation and remodelling and development of emphysematous pathology following chronic CS-exposure. Mlkl deletion and qVD-OPh treatment reduced chronic CS-induced airway inflammation, but only Mlkl deletion prevented airway remodelling and emphysema. Ripk3 or Mlkl deletion and qVD-OPh treatment reduced CS-induced lung cell death. CONCLUSIONS Necroptosis is induced by CS exposure and increased in COPD patient lungs and experimental COPD. Inhibiting necroptosis attenuates CS-induced airway inflammation, airway remodelling and emphysema. Targeted inhibition of necroptosis is a potential therapeutic strategy in COPD.
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Affiliation(s)
- Zhe Lu
- The University of Newcastle Hunter Medical Research Institute, 454568, Priority Research Centre for Healthy Lungs, New Lambton, New South Wales, Australia
| | | | - Gang Liu
- The University of Newcastle Hunter Medical Research Institute, 454568, Priority Research Centre for Healthy Lungs, New Lambton, New South Wales, Australia.,University of Technology Sydney Faculty of Science, 170529, Centre for Inflammation, Centenary Institute, Sydney, New South Wales, Australia
| | - Prema M Nair
- University of Newcastle Hunter Medical Research Institute, 454568, Priority Research Centres for Healthy Lungs and GrowUpWell, New Lambton, New South Wales, Australia.,The University of Newcastle Faculty of Health and Medicine, 64834, School of Biomedical Sciences and Pharmacy, Callaghan, New South Wales, Australia
| | - Bernadette Jones
- The University of Newcastle, 5982, Centre for Asthma & Respiratory Disease, Callaghan, New South Wales, Australia
| | - Caitlin M Gillis
- University of Technology Sydney Faculty of Science, 170529, Centre for Inflammation, Centenary Institute, Sydney, New South Wales, Australia.,Ghent University, 26656, VIB Center for Inflammation Research, Department for Biomedical Molecular Biology, Gent, Belgium.,Ghent University, 26656, Methusalem program CEDAR-IC, Gent, Belgium
| | - B Christina Nalkurthi
- University of Technology Sydney Faculty of Science, 170529, Centre for Inflammation, Centenary Institute, Sydney, New South Wales, Australia
| | | | - Tamariche Buyle-Huybrecht
- University Hospital Ghent, 60200, Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Gent, Belgium
| | - Peter Vandenabeele
- University Hospital Ghent, 60200, Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Gent, Belgium
| | - Tom Vanden Berghe
- Ghent University, 26656, VIB Center for Inflammation Research, Department for Biomedical Molecular Biology, Gent, Belgium.,University of Antwerp, 26660, Department Biomedical Sciences, Antwerpen, Belgium
| | - Guy G Brusselle
- University Hospital Ghent, 60200, Respiratory Medicine, Gent, Belgium
| | - Jay C Horvat
- Hunter Medical Research Institute, Vaccines, Immunity, Viruses and Asthma Group, Newcastle, New South Wales, Australia
| | - James M Murphy
- Walter and Eliza Hall Institute of Medical Research, 5388, Department of Medical Biology University of Melbourne , Melbourne, Victoria, Australia
| | - Peter A Wark
- The University of Newcastle, 5982, Centre for Asthma & Respiratory Disease, Callaghan, New South Wales, Australia.,The University of Newcastle Hunter Medical Research Institute, 454568, Vaccines, Infection, Viruses & Asthma, New Lambton, New South Wales, Australia
| | - Ken R Bracke
- University Hospital Ghent, 60200, Respiratory Medicine, Gent, Belgium
| | - Michael Fricker
- The University of Newcastle Hunter Medical Research Institute, 454568, Priority Research Centres for Healthy Lungs & Grow Up Well, New Lambton, New South Wales, Australia
| | - Philip M Hansbro
- University of Technology Sydney, 1994, Sydney, New South Wales, Australia;
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67
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Lv Z, Yue Z, Shao Y, Li C, Zhao X, Guo M. mTORC2/Rictor is essential for coelomocyte endocytosis in Apostichopus japonicus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 118:104000. [PMID: 33444645 DOI: 10.1016/j.dci.2021.104000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Endocytosis plays an important role in the immune defence systems of invertebrates through the interaction between the mechanical target of rapamycin complex 2 (mTORC2) and the AGC kinase family. Rictor is the most important unique subunit protein of mTORC2 and is thought to regulate almost all functions of mTORC2, including endocytosis. In the present study, a novel invertebrate Rictor homologue was identified from Apostichopus japonicus (designated as AjRictor) via the rapid amplification of cDNA ends (RACE). Spatial expression analysis indicated that AjRictor is ubiquitously expressed in all the examined tissues and has the highest transcript level in coelomocytes. Vibrio splendidus challenge in vivo and lipopolysaccharide (LPS) exposure in vitro could remarkably up-regulate the messenger RNA (mRNA) expression of AjRictor compared with the control group. AjRictor knockdown by 0.49- and 0.69-fold resulted in the significant decrease in endocytosis rate by 0.53- (P < 0.01) and 0.59-fold (P < 0.01) in vivo and in vitro compared with the control group, respectively. Similarly, the treatment of coelomocytes with rapamycin for 24 h and the destruction of the assembly of mTORC2 markedly decreased the endocytosis rate of the coelomocytes by 35.92% (P < 0.05). We detected the expression levels of endocytosis-related molecular markers after AjRictor knockdown and rapamycin treatment to further study the molecular mechanism between mTORC2 and endocytosis. Our results showed that AGC kinase family members (PKCα and Pan1) and the phosphorylation level of AktS473 were remarkably decreased after reducing mTORC2 activity; thus, mTORC2/Rictor plays a key role in the immune regulation of endocytosis in coelomocytes. Our current study indicates that mTORC2/Rictor is involved in the coelomocyte endocytosis of sea cucumber and plays an essential regulation role in defending pathogen invasion.
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Affiliation(s)
- Zhimeng Lv
- School of Marine Sciences, Ningbo University, Ningbo, 315211, PR China
| | - Zongxu Yue
- School of Marine Sciences, Ningbo University, Ningbo, 315211, PR China
| | - Yina Shao
- School of Marine Sciences, Ningbo University, Ningbo, 315211, PR China.
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo, 315211, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
| | - Xuelin Zhao
- School of Marine Sciences, Ningbo University, Ningbo, 315211, PR China
| | - Ming Guo
- School of Marine Sciences, Ningbo University, Ningbo, 315211, PR China
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Fathimath Muneesa M, Shaikh SB, Jeena TM, Bhandary YP. Inflammatory mediators in various molecular pathways involved in the development of pulmonary fibrosis. Int Immunopharmacol 2021; 96:107608. [PMID: 33857801 DOI: 10.1016/j.intimp.2021.107608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/23/2021] [Accepted: 03/21/2021] [Indexed: 12/15/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a type of interstitial lung disease (ILD) that is marked by scarring of lung tissue, ultimately leading to respiratory failure. The survival rate of IPF is disappointing and to date demonstrates a clinical quandary. The exact etiology of the disease remains under discussion. According to the recent hypothesis, inflammatory mediators cause severe damage to the alveolar epithelium leading to the impairment of the alveolar structure. The role of inflammation in the development of the IPF has been controversial for years. There are two schools of thought regarding the role of inflammation. One group of researchers claims that cell death and fibroblast dysfunction are the primary causes and inflammation is just a secondary cause of IPF. The other group claims inflammation to be the primary cause. Studies using human subjects have also reported inflammation as a critical element in IPF. Inflammatory cytokinesserve amajor rolein commencing theinflammatoryresponse in the lungs. Several cytokines are reported to be involved in different molecular mechanisms underlying IPF, someof which alsocontribute additionally by acting as growth factors. The present review addressed to explore the contribution of various inflammatory cytokines, growth factors, and various other inflammatory molecules activating the major molecular pathways involved during the development of IPF.
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Affiliation(s)
- M Fathimath Muneesa
- Yenepoya Research Centre, Yenepoya University, Deralakatte, Mangalore 575018, Karnataka, India
| | - Sadiya B Shaikh
- Yenepoya Research Centre, Yenepoya University, Deralakatte, Mangalore 575018, Karnataka, India
| | - T M Jeena
- Yenepoya Research Centre, Yenepoya University, Deralakatte, Mangalore 575018, Karnataka, India
| | - Yashodhar P Bhandary
- Yenepoya Research Centre, Yenepoya University, Deralakatte, Mangalore 575018, Karnataka, India.
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69
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Chong WC, Shastri MD, Peterson GM, Patel RP, Pathinayake PS, Dua K, Hansbro NG, Hsu AC, Wark PA, Shukla SD, Johansen MD, Schroder K, Hansbro PM. The complex interplay between endoplasmic reticulum stress and the NLRP3 inflammasome: a potential therapeutic target for inflammatory disorders. Clin Transl Immunology 2021; 10:e1247. [PMID: 33614031 PMCID: PMC7878118 DOI: 10.1002/cti2.1247] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/09/2021] [Accepted: 01/10/2021] [Indexed: 12/15/2022] Open
Abstract
Inflammation is the result of a complex network of cellular and molecular interactions and mechanisms that facilitate immune protection against intrinsic and extrinsic stimuli, particularly pathogens, to maintain homeostasis and promote tissue healing. However, dysregulation in the immune system elicits excess/abnormal inflammation resulting in unintended tissue damage and causes major inflammatory diseases including asthma, chronic obstructive pulmonary disease, atherosclerosis, inflammatory bowel diseases, sarcoidosis and rheumatoid arthritis. It is now widely accepted that both endoplasmic reticulum (ER) stress and inflammasomes play critical roles in activating inflammatory signalling cascades. Notably, evidence is mounting for the involvement of ER stress in exacerbating inflammasome-induced inflammatory cascades, which may provide a new axis for therapeutic targeting in a range of inflammatory disorders. Here, we comprehensively review the roles, mechanisms and interactions of both ER stress and inflammasomes, as well as their interconnected relationships in inflammatory signalling cascades. We also discuss novel therapeutic strategies that are being developed to treat ER stress- and inflammasome-related inflammatory disorders.
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Affiliation(s)
- Wai Chin Chong
- Department of Molecular and Translational ScienceMonash UniversityClaytonVICAustralia
- Centre for Cancer ResearchHudson Institute of Medical ResearchClaytonVICAustralia
| | - Madhur D Shastri
- School of Pharmacy and PharmacologyUniversity of TasmaniaHobartTASAustralia
| | - Gregory M Peterson
- School of Pharmacy and PharmacologyUniversity of TasmaniaHobartTASAustralia
| | - Rahul P Patel
- School of Pharmacy and PharmacologyUniversity of TasmaniaHobartTASAustralia
| | - Prabuddha S Pathinayake
- Priority Research Centre for Healthy LungsHunter Medical Research InstituteThe University of NewcastleCallaghanNSWAustralia
| | - Kamal Dua
- Discipline of PharmacyGraduate School of HealthUniversity of Technology SydneyUltimoNSWAustralia
| | - Nicole G Hansbro
- Centre for InflammationCentenary InstituteFaculty of ScienceSchool of Life SciencesUniversity of TechnologySydneyNSWAustralia
| | - Alan C Hsu
- Priority Research Centre for Healthy LungsHunter Medical Research InstituteThe University of NewcastleCallaghanNSWAustralia
| | - Peter A Wark
- Priority Research Centre for Healthy LungsHunter Medical Research InstituteThe University of NewcastleCallaghanNSWAustralia
| | - Shakti Dhar Shukla
- Priority Research Centre for Healthy LungsHunter Medical Research InstituteThe University of NewcastleCallaghanNSWAustralia
| | - Matt D Johansen
- Centre for InflammationCentenary InstituteFaculty of ScienceSchool of Life SciencesUniversity of TechnologySydneyNSWAustralia
| | - Kate Schroder
- Institute for Molecular BioscienceUniversity of QueenslandSt LuciaQLDAustralia
| | - Philip M Hansbro
- Priority Research Centre for Healthy LungsHunter Medical Research InstituteThe University of NewcastleCallaghanNSWAustralia
- Centre for InflammationCentenary InstituteFaculty of ScienceSchool of Life SciencesUniversity of TechnologySydneyNSWAustralia
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70
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Jiang C, Wu B, Xue M, Lin J, Hu Z, Nie X, Cai G. Inflammation accelerates copper-mediated cytotoxicity through induction of six-transmembrane epithelial antigens of prostate 4 expression. Immunol Cell Biol 2021; 99:392-402. [PMID: 33179273 DOI: 10.1111/imcb.12427] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 06/24/2020] [Accepted: 11/10/2020] [Indexed: 12/21/2022]
Abstract
Copper is an essential trace metal, but imbalance in copper homeostasis can induce oxidative damage. Inflammation is a fundamental element of various pulmonary diseases. Although a positive relationship between copper and chronic pulmonary diseases has been reported, the underlying reasons are still not clear. The copper level in the sputum of patients with various pulmonary diseases was measured. An inflammatory model was established to evaluate the impact of inflammation on copper uptake in the lung. We found that the level of sputum copper was increased in patients with various pulmonary diseases, especially chronic obstructive pulmonary disease and asthma. Then, we confirmed that mice with pulmonary inflammation were susceptible to copper-mediated oxidative damage because of copper overload in lung tissue. Further investigation demonstrated that interleukin (IL)-17 and tumor necrosis factor (TNF)-α exerted synergistic effects in airway epithelial cells by upregulating the expression of six-transmembrane epithelial antigens of prostate 4 (STEAP4), a metalloreductase that reduces extracellular copper ions from the cupric state to the cuprous state and facilitates copper uptake. Inhibition of STEAP4 decreased the copper uptake of cells and inhibited copper-mediated oxidative damage. Moreover, we demonstrated that the upregulation of STEAP4 by IL-17 and TNF-α was largely dependent on TNF receptor-associated factor 4 (TRAF4). Traf4-/- mice were resistant to copper-mediated oxidative damage. Our data suggest a novel IL-17/TNF-α-TRAF4-STEAP4 axis that regulates copper homeostasis.
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Affiliation(s)
- Cen Jiang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai, China
| | - Beiying Wu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai, China
| | - Minghui Xue
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai, China
| | - Jiafei Lin
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai, China
| | - Zhenli Hu
- Department of Respiratory Diseases, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Xiaomeng Nie
- Department of Respiratory Diseases, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Gang Cai
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai, China
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71
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Parlar A, Arslan SO, Yumrutas O, Elibol E, Yalcin A, Uckardes F, Aydin H, Dogan MF, Kayhan Kustepe E, Ozer MK. Effects of cannabinoid receptor 2 synthetic agonist, AM1241, on bleomycin induced pulmonary fibrosis. Biotech Histochem 2020; 96:48-59. [PMID: 33325762 DOI: 10.1080/10520295.2020.1758343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Bleomycin (BLM) is a chemotherapeutic agent that can cause pulmonary fibrosis. Little is known about the possible protective role of the CB2 receptor agonist, AM1241. We investigated the effects of CB2 receptor activation by AM1241 on BLM induced lung fibrosis in a rat model. BLM was administered via the trachea. Adult female Wistar rats were divided into five groups: saline (control group), BLM (BLM group), CB2 agonist (AM1241) + BLM (BLMA group), CB2 antagonist (AM630) and CB2 agonist (AM1241) + BLM (BLMA + A group), and vehicle (dimethylsulfoxide) + BLM (BLM + vehicle group). Hydroxyproline, collagen type 1, total protein, glutathione (GSH), malondialdehyde (MDA), interleukin (IL)-6 and tumor necrosis factor (TNF)-α levels were measured in lung fibrosis and control tissue using standard methods. We investigated the histopathology of lung tissue to determine the extent of fibrosis. We found significantly higher levels of hydroxyproline, TNF-α, IL-6 and total protein in the BLM group compared to the BLMA group. The level of GSH also was higher in the BLMA group compared to the BLM group. Inflammation and fibrotic changes were significantly reduced in the BLMA group. Our findings suggest that CB2 receptor activation provided protection against BLM induced pulmonary fibrosis by suppressing oxidative stress and increasing cytokines.
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Affiliation(s)
- Ali Parlar
- Faculty of Medicine, Department of Pharmacology, University of Adıyaman , Adıyaman, Turkey
| | - Seyfullah Oktay Arslan
- Pharmacology Department, Faculty of Medicine, Yıldırım Beyazıt University , Ankara, Turkey
| | - Onder Yumrutas
- Faculty of Medicine, Department of Medical Biology, University of Adıyaman , Adıyaman, Turkey
| | - Ebru Elibol
- Faculty of Medicine, Department of Histology and Embryology, University of Adıyaman , Adıyaman, Turkey
| | - Alper Yalcin
- Faculty of Medicine, Department of Histology and Embryology, University of Adıyaman , Adıyaman, Turkey
| | - Fatih Uckardes
- Faculty of Medicine, Department of Biostatistics and Medical Informatics, University of Adıyaman , Adıyaman, Turkey
| | - Hasan Aydin
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, University of Adıyaman , Adıyaman, Turkey
| | - Muhammed Fatih Dogan
- Pharmacology Department, Faculty of Medicine, Yıldırım Beyazıt University , Ankara, Turkey
| | - Elif Kayhan Kustepe
- Faculty of Medicine, Department of Histology and Embryology, University of Adıyaman , Adıyaman, Turkey
| | - Mehmet Kaya Ozer
- Faculty of Medicine, Department of Pharmacology, University of Adıyaman , Adıyaman, Turkey
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72
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Low-dose chlorine exposure impairs lung function, inflammation and oxidative stress in mice. Life Sci 2020; 267:118912. [PMID: 33338503 DOI: 10.1016/j.lfs.2020.118912] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 12/04/2020] [Accepted: 12/09/2020] [Indexed: 12/11/2022]
Abstract
AIM To explore the different consequences of acute and chronic exposure to chlorine gas (Cl2) on the functional and histological parameters of health mice. MAIN METHODS Firstly, male BALB/c mice were acute exposed to 3.3 or 33.3 or 70.5 mg/m3 Cl2. We analyzed the lung function, the inflammatory cells in the bronchoalveolar lavage, cell influx in the peribrochoalveolar space and mucus production. In a second phase, mice were chronic exposed to 70.5 mg/m3 Cl2. Besides the first phase analyses, we also evaluated the epithelial cells thickness, collagen deposition in the airways, immunohistochemistry stain for IL-1β, iNOS, IL-17 and ROCK-2 and the levels of IL-5, IL-13, IL-17, IL-1β and TNF-α in lung homogenate. KEY FINDINGS Acute exposure to chlorine impaired the lung function, increased the number of inflammatory cells in the BALF and in the airways, also increased the mucus production. Furthermore, when chlorine was exposed chronically, increased the airway remodeling with collagen deposition and epithelial cells thickness, positive cells for IL-1β, iNOS, IL-17 in the airways and in the alveolar walls and ROCK-2 in the alveolar walls, lung inflammation with increased levels of IL-5, IL-13, IL-1β and TNF-α in the lung homogenate, and also, induced the acid mucus production by the nasal epithelium. SIGNIFICANCE Acute and chronic exposure to low dose of chlorine gas worsens lung function, induces oxidative stress activation and mucus production and contributes to augmenting inflammation in health mice.
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73
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Pierce CF, Brown VR, Olsen SC, Boggiatto P, Pedersen K, Miller RS, Speidel SE, Smyser TJ. Loci Associated With Antibody Response in Feral Swine ( Sus scrofa) Infected With Brucella suis. Front Vet Sci 2020; 7:554674. [PMID: 33324693 PMCID: PMC7724110 DOI: 10.3389/fvets.2020.554674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 10/23/2020] [Indexed: 11/13/2022] Open
Abstract
Feral swine (Sus scrofa) are a destructive invasive species widespread throughout the United States that disrupt ecosystems, damage crops, and carry pathogens of concern for the health of domestic stock and humans including Brucella suis-the causative organism for swine brucellosis. In domestic swine, brucellosis results in reproductive failure due to abortions and infertility. Contact with infected feral swine poses spillover risks to domestic pigs as well as humans, companion animals, wildlife, and other livestock. Genetic factors influence the outcome of infectious diseases; therefore, genome wide association studies (GWAS) of differential immune responses among feral swine can provide an understanding of disease dynamics and inform management to prevent the spillover of brucellosis from feral swine to domestic pigs. We sought to identify loci associated with differential antibody responses among feral swine naturally infected with B. suis using a case-control GWAS. Tissue, serum, and genotype data (68,516 bi-allelic single nucleotide polymorphisms) collected from 47 feral swine were analyzed in this study. The 47 feral swine were culture positive for Brucella spp. Of these 47, 16 were antibody positive (cases) whereas 31 were antibody negative (controls). Single-locus GWAS were performed using efficient mixed-model association eXpedited (EMMAX) methodology with three genetic models: additive, dominant, and recessive. Eight loci associated with seroconversion were identified on chromosome 4, 8, 9, 10, 12, and 18. Subsequent bioinformatic analyses revealed nine putative candidate genes related to immune function, most notably phagocytosis and induction of an inflammatory response. Identified loci and putative candidate genes may play an important role in host immune responses to B. suis infection, characterized by a detectable bacterial presence yet a differential antibody response. Given that antibody tests are used to evaluate brucellosis infection in domestic pigs and for disease surveillance in invasive feral swine, additional studies are needed to fully understand the genetic component of the response to B. suis infection and to more effectively translate estimates of Brucella spp. antibody prevalence among feral swine to disease control management action.
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Affiliation(s)
- Courtney F. Pierce
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States
- Department of Animal Sciences, Colorado State University, Fort Collins, CO, United States
| | - Vienna R. Brown
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Feral Swine Damage Management Program, Fort Collins, CO, United States
| | - Steven C. Olsen
- United States Department of Agriculture, Agricultural Research Service, Infectious Bacterial Diseases, National Animal Disease Center, Ames, IA, United States
| | - Paola Boggiatto
- United States Department of Agriculture, Agricultural Research Service, Infectious Bacterial Diseases, National Animal Disease Center, Ames, IA, United States
| | - Kerri Pedersen
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, Raleigh, NC, United States
| | - Ryan S. Miller
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Veterinary Services, Center for Epidemiology and Animal Health, Fort Collins, CO, United States
| | - Scott E. Speidel
- Department of Animal Sciences, Colorado State University, Fort Collins, CO, United States
| | - Timothy J. Smyser
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, National Wildlife Research Center, Fort Collins, CO, United States
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74
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Lambadiari V, Kousathana F, Raptis A, Katogiannis K, Kokkinos A, Ikonomidis I. Pre-Existing Cytokine and NLRP3 Inflammasome Activation and Increased Vascular Permeability in Diabetes: A Possible Fatal Link With Worst COVID-19 Infection Outcomes? Front Immunol 2020; 11:557235. [PMID: 33329516 PMCID: PMC7719832 DOI: 10.3389/fimmu.2020.557235] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 10/28/2020] [Indexed: 01/08/2023] Open
Affiliation(s)
- Vaia Lambadiari
- 2Department of Internal Medicine, Research Unit and Diabetes Center, Medical School, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Foteini Kousathana
- 2Department of Internal Medicine, Research Unit and Diabetes Center, Medical School, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Athanasios Raptis
- 2Department of Internal Medicine, Research Unit and Diabetes Center, Medical School, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Katogiannis
- 2Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexander Kokkinos
- 1Department of Propaedeutic Internal Medicine, Medical School, Diabetes Center, Laiko Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Ignatios Ikonomidis
- 2Cardiology Department, Attikon University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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75
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Shaver CM, Landstreet SR, Pugazenthi S, Scott F, Putz N, Ware LB, Bastarache JA. The NLRP3 inflammasome in macrophages is stimulated by cell-free hemoglobin. Physiol Rep 2020; 8:e14589. [PMID: 33128438 PMCID: PMC7601531 DOI: 10.14814/phy2.14589] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/27/2020] [Accepted: 09/03/2020] [Indexed: 12/18/2022] Open
Abstract
Cell‐free hemoglobin (CFH) is associated with severe lung injury in human patients and is sufficient to induce airspace inflammation and alveolar–capillary barrier dysfunction in an experimental model of acute lung injury. The mechanisms through which this occurs are unknown. One key pathway which regulates inflammation during acute lung injury is the NLRP3 inflammasome. Because CFH can act as a damage‐associated molecular pattern, we hypothesized that CFH may activate the NLRP3 inflammasome during acute lung injury. Primary mouse alveolar macrophages and cultured murine macrophages exposed to CFH (0–1 mg/ml) for 24 hr demonstrated robust upregulation of the NLRP3 inflammasome components NLRP3, caspase‐1, and caspase‐11. Maximal induction of the NLRP3 inflammasome by CFH required TLR4. Compared to wild‐type controls, mice lacking NLRP3 developed less airspace inflammation (2.7 × 105 cells/ml in bronchoalveolar lavage fluid versus. 1.1 × 105/ml, p = .006) after exposure to intratracheal CFH. Together, these data demonstrate that CFH can stimulate the NLRP3 inflammasome in macrophages and that this pathway may be important in the pathogenesis of CFH‐induced acute lung injury.
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Affiliation(s)
- Ciara M Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Stuart R Landstreet
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Fiona Scott
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nathan Putz
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Lorraine B Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Julie A Bastarache
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
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76
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Tomani JCD, Kagisha V, Tchinda AT, Jansen O, Ledoux A, Vanhamme L, Frederich M, Muganga R, Souopgui J. The Inhibition of NLRP3 Inflammasome and IL-6 Production by Hibiscus noldeae Baker f. Derived Constituents Provides a Link to Its Anti-Inflammatory Therapeutic Potentials. Molecules 2020; 25:molecules25204693. [PMID: 33066442 PMCID: PMC7587372 DOI: 10.3390/molecules25204693] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/12/2020] [Accepted: 10/12/2020] [Indexed: 12/15/2022] Open
Abstract
The activation of NOD-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome and/or its components is associated with the physio-pathogenesis of many respiratory diseases including asthma, COPD (chronic obstructive pulmonary disease), SARS Cov-2 (severe acute respiratory syndrome coronavirus 2), and in several autoimmune diseases. Hibiscus noldeae Baker f. has been widely reported to be traditionally used in the treatment of different ailments, some of which are of inflammatory background such as asthma, wounds, headache, etc. However, the claims have not been supported by evidence at the molecular and functional levels. Here, we report on the bio-guided fractionation of H. noldeae and assessment of the inhibitory properties of some fractions and purified compounds on NLRP3 inflammasome and Interleukin 6 (IL-6). The activation of the NLRP3 inflammasome was determined by detecting the activity of caspase-1 and the production of Interleukin 1β (IL-1β) in Lipopolysaccharide (LPS) and ATP-stimulated Tamm-Horsfall Protein 1 (THP-1) macrophages, while the production of IL-6 was studied in LPS-stimulated RAW264.7 mouse macrophages. It was observed that hexane and ethyl acetate fractions of the crude extract of the aerial parts of H. noldeae, as well as caffeic acid, isoquercetin, and ER2.4 and ER2.7 fractions revealed significant inhibitory effects on Caspase-1 activities, and on IL-1β and IL-6 production. The ER2.4 and ER2.7 fractions downregulated the production of IL-1β and IL-6, in a similar range as the caspase-1 inhibitor AC-YVAD-CHO and the drug Dexamethasone, both used as controls, respectively. Overall, our work does provide the very first scientific based evidence for Hibiscus noldeae anti-inflammatory effects and widespread use by traditional healers in Rwanda for a variety of ailments.
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Affiliation(s)
- Jean Claude Didelot Tomani
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, P.O. Box 3286 Kigali, Rwanda; (J.C.D.T.); (V.K.); (R.M.)
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium;
| | - Vedaste Kagisha
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, P.O. Box 3286 Kigali, Rwanda; (J.C.D.T.); (V.K.); (R.M.)
- Laboratory of Pharmacognosy, Centre for Interdisciplinary Research on Medicines (CIRM), University of Liège, B36, 4000 Liège, Belgium; (O.J.); (A.L.); (M.F.)
| | - Alembert Tiabou Tchinda
- Laboratory of Phytochemistry, Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies, Yaoundé P.O. Box 6163, Cameroon;
| | - Olivia Jansen
- Laboratory of Pharmacognosy, Centre for Interdisciplinary Research on Medicines (CIRM), University of Liège, B36, 4000 Liège, Belgium; (O.J.); (A.L.); (M.F.)
| | - Allison Ledoux
- Laboratory of Pharmacognosy, Centre for Interdisciplinary Research on Medicines (CIRM), University of Liège, B36, 4000 Liège, Belgium; (O.J.); (A.L.); (M.F.)
| | - Luc Vanhamme
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium;
| | - Michel Frederich
- Laboratory of Pharmacognosy, Centre for Interdisciplinary Research on Medicines (CIRM), University of Liège, B36, 4000 Liège, Belgium; (O.J.); (A.L.); (M.F.)
| | - Raymond Muganga
- School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, P.O. Box 3286 Kigali, Rwanda; (J.C.D.T.); (V.K.); (R.M.)
| | - Jacob Souopgui
- Department of Molecular Biology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles, 6041 Gosselies, Belgium;
- Correspondence: ; Tel.: +32-2-650-9936
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77
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Pathogenesis and immune response in Brucella infection acquired by the respiratory route. Microbes Infect 2020; 22:407-415. [DOI: 10.1016/j.micinf.2020.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/25/2020] [Accepted: 06/02/2020] [Indexed: 01/18/2023]
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78
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Paudel KR, Dharwal V, Patel VK, Galvao I, Wadhwa R, Malyla V, Shen SS, Budden KF, Hansbro NG, Vaughan A, Yang IA, Kohonen-Corish MRJ, Bebawy M, Dua K, Hansbro PM. Role of Lung Microbiome in Innate Immune Response Associated With Chronic Lung Diseases. Front Med (Lausanne) 2020; 7:554. [PMID: 33043031 PMCID: PMC7530186 DOI: 10.3389/fmed.2020.00554] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 08/03/2020] [Indexed: 12/13/2022] Open
Abstract
Respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), lung fibrosis, and lung cancer, pose a huge socio-economic burden on society and are one of the leading causes of death worldwide. In the past, culture-dependent techniques could not detect bacteria in the lungs, therefore the lungs were considered a sterile environment. However, the development of culture-independent techniques, particularly 16S rRNA sequencing, allowed for the detection of commensal microbes in the lung and with further investigation, their roles in disease have since emerged. In healthy individuals, the predominant commensal microbes are of phylum Firmicutes and Bacteroidetes, including those of the genera Veillonella and Prevotella. In contrast, pathogenic microbes (Haemophilus, Streptococcus, Klebsiella, Pseudomonas) are often associated with lung diseases. There is growing evidence that microbial metabolites, structural components, and toxins from pathogenic and opportunistic bacteria have the capacity to stimulate both innate and adaptive immune responses, and therefore can contribute to the pathogenesis of lung diseases. Here we review the multiple mechanisms that are altered by pathogenic microbiomes in asthma, COPD, lung cancer, and lung fibrosis. Furthermore, we focus on the recent exciting advancements in therapies that can be used to restore altered microbiomes in the lungs.
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Affiliation(s)
- Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Vivek Dharwal
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Vyoma K Patel
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Izabela Galvao
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Ridhima Wadhwa
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Vamshikrishna Malyla
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Sj Sijie Shen
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Kurtis F Budden
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW, Australia
| | - Nicole G Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
| | - Annalicia Vaughan
- Faculty of Medicine, Thoracic Research Centre, The University of Queensland, Brisbane, QLD, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Ian A Yang
- Faculty of Medicine, Thoracic Research Centre, The University of Queensland, Brisbane, QLD, Australia.,Department of Thoracic Medicine, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Maija R J Kohonen-Corish
- Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia.,School of Medicine, Western Sydney University, Sydney, NSW, Australia.,St George and Sutherland Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Mary Bebawy
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Kamal Dua
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia.,Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW, Australia
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79
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Pasqua LA, Damasceno MV, Cruz R, Matsuda M, Martins MAG, Marquezini MV, Lima-Silva AE, Saldiva PHN, Bertuzzi R. Exercising in the urban center: Inflammatory and cardiovascular effects of prolonged exercise under air pollution. CHEMOSPHERE 2020; 254:126817. [PMID: 32339794 DOI: 10.1016/j.chemosphere.2020.126817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 04/07/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to investigate, in a well-controlled experimental environment, whether air pollution from an urban center would affect inflammatory and cardiorespiratory responses during prolonged moderate exercise (i.e., 90 min). Ten healthy men performed two experimental trials under filtered and polluted air, inside an environmental chamber located in Sao Paulo downtown, Brazil. Blood samples were obtained at rest, 30, 60, and 90 min of the exercise to determine the serum cytokines concentration, while arterial pressure was recorded immediately after the exercise. The serum cytokines were not altered until 60 min of exercise for both conditions (P > 0.05). Otherwise, at 90 min of exercise, the IL-6 (P = 0.047) and vascular endothelial growth factor (VEGF) (P = 0.026) were significantly higher and IL-10 tended to decrease (P = 0.061) in polluted air condition compared to filtered air condition. In addition, both systolic (P = 0.031) and diastolic (P = 0.009) arterial pressure were higher in polluted air condition than filtered air condition. These findings demonstrate that the exercise of longer duration (i.e., 90 min), but not of shorter duration (i.e., <60 min), performed in vehicular air pollution condition results in pronounced pro-inflammatory and increased arterial pressure responses.
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Affiliation(s)
- Leonardo A Pasqua
- Endurance Performance Research Group (GEDAE-USP), School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil; Faculty of Medicine, Federal University of Alagoas, Maceió, Brazil.
| | - Mayara V Damasceno
- Endurance Performance Research Group (GEDAE-USP), School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil; CESMAC University Center, Maceió, Brazil
| | - Ramon Cruz
- Endurance Performance Research Group (GEDAE-USP), School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil
| | - Monique Matsuda
- Laboratory of Investigation in Ophthalmology (LIM-33), Division of Ophthalmology, University of São Paulo Faculty of Medicine, São Paulo, SP, Brazil
| | - Marco A G Martins
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Mônica V Marquezini
- Laboratory of Investigation in Ophthalmology (LIM-33), Division of Ophthalmology, University of São Paulo Faculty of Medicine, São Paulo, SP, Brazil; Pro-Sangue Foundation, São Paulo, SP, Brazil
| | - Adriano E Lima-Silva
- Human Performance Research Group, Academic Department of Physical Education (DAEFI), Technological Federal University of Parana, Curitiba, PR, Brazil
| | - Paulo H N Saldiva
- Laboratory of Investigation in Ophthalmology (LIM-33), Division of Ophthalmology, University of São Paulo Faculty of Medicine, São Paulo, SP, Brazil; Institute of Advanced Studies, University of São Paulo, São Paulo, SP, Brazil
| | - Romulo Bertuzzi
- Endurance Performance Research Group (GEDAE-USP), School of Physical Education and Sport, University of São Paulo, São Paulo, SP, Brazil
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80
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Pollard KM, Cauvi DM, Mayeux JM, Toomey CB, Peiss AK, Hultman P, Kono DH. Mechanisms of Environment-Induced Autoimmunity. Annu Rev Pharmacol Toxicol 2020; 61:135-157. [PMID: 32857688 DOI: 10.1146/annurev-pharmtox-031320-111453] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Although numerous environmental exposures have been suggested as triggers for preclinical autoimmunity, only a few have been confidently linked to autoimmune diseases. For disease-associated exposures, the lung is a common site where chronic exposure results in cellular toxicity, tissue damage, inflammation, and fibrosis. These features are exacerbated by exposures to particulate material, which hampers clearance and degradation, thus facilitating persistent inflammation. Coincident with exposure and resulting pathological processes is the posttranslational modification of self-antigens, which, in concert with the formation of tertiary lymphoid structures containing abundant B cells, is thought to promote the generation of autoantibodies that in some instances demonstrate major histocompatibility complex restriction. Under appropriate gene-environment interactions, these responses can have diagnostic specificity. Greater insight into the molecular and cellular requirements governing this process, especially those that distinguish preclinical autoimmunity from clinical autoimmunedisease, may facilitate determination of the significance of environmental exposures in human autoimmune disease.
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Affiliation(s)
- K Michael Pollard
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, USA;
| | - David M Cauvi
- Department of Surgery, University of California San Diego School of Medicine, La Jolla, California 92093, USA
| | - Jessica M Mayeux
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, USA;
| | - Christopher B Toomey
- Department of Ophthalmology, University of California San Diego, La Jolla, California 92093, USA
| | - Amy K Peiss
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California 92037, USA;
| | - Per Hultman
- Departments of Clinical Pathology and Biomedical and Clinical Sciences, Linköping University, SE-581 85 Linköping, Sweden
| | - Dwight H Kono
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, California 92037, USA
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81
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Donovan C, Liu G, Shen S, Marshall JE, Kim RY, Alemao CA, Budden KF, Choi JP, Kohonen-Corish M, El-Omar EM, Yang IA, Hansbro PM. The role of the microbiome and the NLRP3 inflammasome in the gut and lung. J Leukoc Biol 2020; 108:925-935. [PMID: 33405294 DOI: 10.1002/jlb.3mr0720-472rr] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 12/15/2022] Open
Abstract
The nucleotide-binding oligomerization domain (NOD)-like receptor (NLR) family, pyrin domain-containing protein 3 (NLRP3) inflammasome, is one of the most well-characterized inflammasomes, activated by pathogen-associated molecular patterns and damage-associated molecular patterns, including from commensal or pathogenic bacterial and viral infections. The NLRP3 inflammasome promotes inflammatory cell recruitment and regulates immune responses in tissues such as the gastrointestinal tract and the lung, and is involved in many diseases that affect the gut and lung. Recently, the microbiome in the gut and the lung, and the crosstalk between these organs (gut-lung axis), has been identified as a potential mechanism that may influence disease in a bidirectional manner. In this review, we focus on themes presented in this area at the 2019 World Congress on Inflammation. We discuss recent evidence on how the microbiome can affect NLRP3 inflammasome responses in the gut and lung, the role of this inflammasome in regulating gut and lung inflammation in disease, and its potential role in the gut-lung axis. We highlight the exponential increase in our understanding of the NLRP3 inflammasome due to the synthesis of the NLRP3 inflammasome inhibitor, MCC950, and propose future studies that may further elucidate the roles of the NLRP3 inflammasome in gut and lung diseases.
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Affiliation(s)
- Chantal Donovan
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales, Australia
| | - Gang Liu
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia
| | - Sj Shen
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia
| | - Jacqueline E Marshall
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia
| | - Richard Y Kim
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales, Australia
| | - Charlotte A Alemao
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales, Australia
| | - Kurtis F Budden
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales, Australia
| | - Jaesung P Choi
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia
| | - Maija Kohonen-Corish
- Woolcock Institute of Medical Research and Faculty of Science, University of Technology Sydney, Garvan Institute of Medical Research and St George and Sutherland Clinical School, University of New South Wales, Kogarah, New South Wales, Australia
| | - Emad M El-Omar
- Microbiome Research Centre, St George and Sutherland Clinical School, University of New South Wales, Kogarah, New South Wales, Australia
| | - Ian A Yang
- The Prince Charles Hospital and The University of Queensland, Brisbane, Queensland, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, New South Wales, Australia
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82
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Relationship of Serum Levels of IL-17, IL-18, TNF- α, and Lung Function Parameters in Patients with COPD, Asthma-COPD Overlap, and Bronchial Asthma. Mediators Inflamm 2020; 2020:4652898. [PMID: 32733164 PMCID: PMC7372292 DOI: 10.1155/2020/4652898] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/26/2019] [Accepted: 01/21/2020] [Indexed: 12/16/2022] Open
Abstract
Determination of markers of systemic inflammation is one of the important directions in the study of pathogenesis and improvement of diagnosis of chronic obstructive pulmonary disease (COPD), asthma-COPD overlap (ACO), and bronchial asthma (BA). The aim of our work was a comparative study of the features of changes in serum levels of IL-17, IL-18, and TNF-α in patients with COPD, ACO, and BA with various severity of the disease, as well as evaluation of the relationship between the level of these cytokines and lung ventilation function. A total of 147 patients with COPD (n = 58), ACO (n = 57), and BA (n = 32) during a stable period have been examined in this study. The control group included 21 healthy nonsmokers with similar sex-age indicators. Serum levels of IL-17, IL-18, and TNF-α were determined by ELISA. The concentrations of these cytokines in the circulation in the studied patients with COPD, ACO, and BA were higher than those in healthy nonsmokers (p ≤ 0.001). IL-17 and IL-18 levels in the blood serum were comparable in all examined patients. The mean TNF-α concentrations in the circulation in COPD and ACO were significantly higher than those in BA (p < 0.001). In patients with COPD, the levels of IL-17 and TNF-α increased progressively against the background of a decrease in numerous spirometric indicators, which allows us to consider these cytokines as systemic biomarkers of disease severity. In BA, the inverse correlations between the level of IL-17 and FEV1/FVC (%) and FEV1 have been found. In patients with ACO, the increase in IL-18 levels was associated with a decrease in FEV1 and TNF-α with FEV1/FVC (%). These findings indicate that IL-17, IL-18, and TNF-α can participate in the mechanisms of systemic inflammation and the genesis of disorders of airway obstruction in COPD, AСO, and BA. An increase in the levels of IL-17 and TNF-α may be associated with impaired bronchial patency in COPD and BA. The established associations of the IL-18 concentration in the blood serum and FEV1 only in patients with ACO allow using the level of IL-18 as a potential marker of the degree of impaired airway obstruction in this disease.
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83
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Galvão I, Kim RY, Shen S, Budden KF, Vieira AT, Hansbro PM. Emerging therapeutic targets and preclinical models for severe asthma. Expert Opin Ther Targets 2020; 24:845-857. [PMID: 32569487 DOI: 10.1080/14728222.2020.1786535] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Asthma is a heterogeneous disease with complex multifactorial causes. It is possible to subclassify asthma into different phenotypes that have distinct immunological features. Eosinophilic asthma is a well-known phenotype of severe asthma; however, a large body of clinical and experimental evidence strongly associates persistent airway inflammation, including the accumulation of neutrophils in the bronchial mucosa, and resistance to corticosteroid therapy and non-Type-2 immune responses with severe asthma. Importantly, mainstay therapies are often ineffective in severe asthma and effective alternatives are urgently needed. AREAS COVERED Here, we discussed recently developed mouse models of severe asthma that recapitulates key features of the disease in humans. We also provide findings from clinically relevant experimental models that have identified potential therapeutic targets for severe asthma. The most relevant publications on the topic of interest were selected from PubMed. EXPERT COMMENTARY Increasing the understanding of disease-causing mechanisms in severe asthma may lead to the identification of novel therapeutic targets and the development of more effective therapies. Intense research interest into investigating the pathophysiological mechanisms of severe asthma has driven the development and interrogation of a myriad of mouse models that aim to replicate hallmark features of severe asthma in humans.
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Affiliation(s)
- Izabela Galvão
- Centre for Inflammation, Centenary Institute and University of Technology Sydney , Sydney, Australia
| | - Richard Y Kim
- Centre for Inflammation, Centenary Institute and University of Technology Sydney , Sydney, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and the University of Newcastle , Newcastle, Australia
| | - Sijie Shen
- Centre for Inflammation, Centenary Institute and University of Technology Sydney , Sydney, Australia
| | - Kurtis F Budden
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and the University of Newcastle , Newcastle, Australia
| | - Angélica T Vieira
- Laboratory of Microbiota and Immunomodulation, Department of Biochemistry and Immunology, Instituto De Ciências Biológicas, Federal University of Minas Gerais , Belo Horizonte, Brazil
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney , Sydney, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and the University of Newcastle , Newcastle, Australia
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84
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Yang X, Ma X, Don O, Song Y, Chen X, Liu J, Qu J, Feng Y. Mesenchymal stem cells combined with liraglutide relieve acute lung injury through apoptotic signaling restrained by PKA/β-catenin. Stem Cell Res Ther 2020; 11:182. [PMID: 32429994 PMCID: PMC7238586 DOI: 10.1186/s13287-020-01689-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/19/2020] [Accepted: 04/23/2020] [Indexed: 12/21/2022] Open
Abstract
Background ARDS and ALI are life-threatening diseases with extremely high mortality in patients. Different sources of MSCs could mitigate the symptoms of ALI from diverse mechanisms. Liraglutide is an activator of glucagon-like peptide-1 receptor (GLP-1R) that activates anti-apoptotic pathways and exerts anti-inflammatory effects. We mainly compared the effects of human chorionic villus-derived mesenchymal stem cells (hCMSCs), human bone marrow-derived mesenchymal stem cells (hBMSCs), and human adipose-derived mesenchymal stem cells (hAMSCs) on the treatment of ALI and explored the apoptosis mechanism of combination MSCs of liraglutide. Methods The proliferation of MSCs was detected by MTT assay. Western blot and RT-qPCR were used to detect the expression of GLP-1R, SPC, Ang-1, and KGF in MSCs stimulated by LPS and liraglutide. By using flow cytometry and TUNEL assay to compare the apoptosis of three MSCs under the action of LPS and liraglutide, we selected hCMSCs as the target cells to study the expression of apoptotic protein through the PKA/β-catenin pathway. In ALI animal models, we observed the effects of liraglutide alone, MSCs alone, and MSCs combined with liraglutide by H&E staining, cell counting, immunohistochemistry, and ELISA assay. Results We demonstrated that LPS attenuates the proliferation of the three MSCs and the expression of GLP-1R. Liraglutide could reverse the effects of LPS; increase the expression of SPC, Ang-1, and KGF; and can reduce the apoptosis of three MSCs through the PKA/β-catenin pathway. In the LPS-induced ALI model, MSCs combined with liraglutide showed a significant therapeutic effect, and hCMSCs combined with liraglutide have advantages in the treatment of ALI. Conclusions The therapeutic effect of combination MSCs of liraglutide on ALI was higher than that of MSCs alone or liraglutide alone, and liraglutide could alleviate the symptoms of ALI by reducing MSCs apoptosis.
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Affiliation(s)
- Xiaotong Yang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China.,State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Xiaoying Ma
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Ocholi Don
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China
| | - Yuanlin Song
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, 20003, China
| | - Xiaoyan Chen
- Department of Pathology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China
| | - Jianwen Liu
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.
| | - Jieming Qu
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China. .,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China.
| | - Yun Feng
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China. .,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, 20025, China.
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85
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Roffel MP, Bracke KR, Heijink IH, Maes T. miR-223: A Key Regulator in the Innate Immune Response in Asthma and COPD. Front Med (Lausanne) 2020; 7:196. [PMID: 32509795 PMCID: PMC7249736 DOI: 10.3389/fmed.2020.00196] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Asthma and Chronic Obstructive Pulmonary Disease (COPD) are chronic obstructive respiratory diseases characterized by airway obstruction, inflammation, and remodeling. Recent findings indicate the importance of microRNAs (miRNAs) in the regulation of pathological processes involved in both diseases. MiRNAs have been implicated in a wide array of biological processes, such as inflammation, cell proliferation, differentiation, and death. MiR-223 is one of the miRNAs that is thought to play a role in obstructive lung disease as altered expression levels have been observed in both asthma and COPD. MiR-223 is a hematopoietic cell–derived miRNA that plays a role in regulation of monocyte-macrophage differentiation, neutrophil recruitment, and pro-inflammatory responses and that can be transferred to non-myeloid cells via extracellular vesicles or lipoproteins. In this translational review, we highlight the role of miR-223 in obstructive respiratory diseases, focusing on expression data in clinical samples of asthma and COPD, in vivo experiments in mouse models and in vitro functional studies. Furthermore, we provide an overview of the mechanisms by which miR-223 regulates gene expression. We specifically focus on immune cell development and activation and involvement in immune responses, which are important in asthma and COPD. Collectively, this review demonstrates the importance of miR-223 in obstructive respiratory diseases and explores its therapeutic potential in the pathogenesis of asthma and COPD.
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Affiliation(s)
- Mirjam P Roffel
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium.,Departments of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Ken R Bracke
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Irene H Heijink
- Departments of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Tania Maes
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium
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86
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Cao X, Tian S, Fu M, Li Y, Sun Y, Liu J, Liu Y. Resveratrol protects human bronchial epithelial cells against nickel-induced toxicity via suppressing p38 MAPK, NF-κB signaling, and NLRP3 inflammasome activation. ENVIRONMENTAL TOXICOLOGY 2020; 35:609-618. [PMID: 31943712 DOI: 10.1002/tox.22896] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Nickel is a common environmental pollutant that can impair the lung, but the underlying mechanisms have not yet been fully elucidated. Furthermore, natural products are generally used to inhibit cell damage induced by heavy metal. Resveratrol possesses wide biological activities, including anti-inflammation and antioxidative stress. This study was conducted to explore the toxicity of nickel on human bronchial epithelial (BEAS-2B) cells and evaluate the protective effect of resveratrol. The results showed that nickel could induce cell apoptosis, increase oxidative stress, and promote the expression of pro-inflammatory cytokines, including tumor necrosis factor-α, interleukin (IL)-1β, IL-6, IL-8, C-reaction protein. Western blot analysis showed that nickel activated p38 mitogen-activated protein kinase (MAPK), nuclear factor-kappa B, and nucleotide-binding oligomerization domain-like receptor pyrin-domain-containing protein 3 pathways, while resveratrol could reverse these effects. Our results suggested that resveratrol could protect BEAS-2B cells from nickel-induced cytotoxicity. Therefore, resveratrol is a potential chemopreventive agent against nickel-induced lung disease.
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Affiliation(s)
- Xiangyu Cao
- School of Life Science, Liaoning University, Shenyang, China
| | - Siqi Tian
- School of Life Science, Liaoning University, Shenyang, China
| | - Mingyang Fu
- School of Life Science, Liaoning University, Shenyang, China
| | - Yanmei Li
- Department of Mine, Metallurgy and Geology Engineering, University of Guanajuato, Guanajuato, Mexico
| | - Yueling Sun
- School hospital, Liaoning University, Shenyang, China
| | - Jianli Liu
- School of Life Science, Liaoning University, Shenyang, China
| | - Yue Liu
- School of Life Science, Liaoning University, Shenyang, China
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87
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Xiang H, Zhu F, Xu Z, Xiong J. Role of Inflammasomes in Kidney Diseases via Both Canonical and Non-canonical Pathways. Front Cell Dev Biol 2020; 8:106. [PMID: 32175320 PMCID: PMC7056742 DOI: 10.3389/fcell.2020.00106] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 02/10/2020] [Indexed: 12/22/2022] Open
Abstract
Inflammasomes, multiprotein complex induced by harmful factors in the body, play a crucial role in innate immunity. Activation of inflammasomes lead to the activation of casepase-1 and then the secretion of inflammatory cytokines, including IL-1β and IL-18, subsequently leading to a type of cell death called pyroptosis. There are two types of signaling pathways involved in the process of inflammasome activation: the canonical and the non-canonical signaling pathway. The canonical signaling pathway is mainly dependent on casepase-1; the non-canonical signal pathway, which was recently discovered, is mainly dependent on caspase-11, but is also meditated by caspase-4, caspase-5, and caspase-8. Kidney inflammation is basically associated with inflammatory factor exudation and inflammatory cell infiltration. Several studies have showed that inflammasomes are closely related to kidney diseases, especially the NOD-, LRR- and pyrin domain-containing 3 (NLRP3) inflammasome, which play a role in regulating kidney inflammation and fibrosis. In this review, we focus on the relationship between inflammasomes and kidney diseases, especially the role of the NLRP3 inflammasome in different kinds of kidney disease via both canonical and non-canonical signal pathways.
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Affiliation(s)
- Huiling Xiang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Zhu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhifeng Xu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Xiong
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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88
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Caspase-11 promotes allergic airway inflammation. Nat Commun 2020; 11:1055. [PMID: 32103022 PMCID: PMC7044193 DOI: 10.1038/s41467-020-14945-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 02/12/2020] [Indexed: 11/29/2022] Open
Abstract
Activated caspase-1 and caspase-11 induce inflammatory cell death in a process termed pyroptosis. Here we show that Prostaglandin E2 (PGE2) inhibits caspase-11-dependent pyroptosis in murine and human macrophages. PGE2 suppreses caspase-11 expression in murine and human macrophages and in the airways of mice with allergic inflammation. Remarkably, caspase-11-deficient mice are strongly resistant to developing experimental allergic airway inflammation, where PGE2 is known to be protective. Expression of caspase-11 is elevated in the lung of wild type mice with allergic airway inflammation. Blocking PGE2 production with indomethacin enhances, whereas the prostaglandin E1 analog misoprostol inhibits lung caspase-11 expression. Finally, alveolar macrophages from asthma patients exhibit increased expression of caspase-4, a human homologue of caspase-11. Our findings identify PGE2 as a negative regulator of caspase-11-driven pyroptosis and implicate caspase-4/11 as a critical contributor to allergic airway inflammation, with implications for pathophysiology of asthma. Caspase 11 activation involves transcriptional upregulation and proteolytic cleavage. Here the authors show that prostaglandin E2 prevents caspase-11-mediated pyroptosis, blocking caspase-11 mRNA and protein upregulation in macrophages and in vivo, and that mice lacking caspase-11 are strongly protected from allergic airway inflammation.
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89
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Gusev EY, Zotova NV. Cellular Stress and General Pathological Processes. Curr Pharm Des 2020; 25:251-297. [PMID: 31198111 DOI: 10.2174/1381612825666190319114641] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 03/13/2019] [Indexed: 02/06/2023]
Abstract
From the viewpoint of the general pathology, most of the human diseases are associated with a limited number of pathogenic processes such as inflammation, tumor growth, thrombosis, necrosis, fibrosis, atrophy, pathological hypertrophy, dysplasia and metaplasia. The phenomenon of chronic low-grade inflammation could be attributed to non-classical forms of inflammation, which include many neurodegenerative processes, pathological variants of insulin resistance, atherosclerosis, and other manifestations of the endothelial dysfunction. Individual and universal manifestations of cellular stress could be considered as a basic element of all these pathologies, which has both physiological and pathophysiological significance. The review examines the causes, main phenomena, developmental directions and outcomes of cellular stress using a phylogenetically conservative set of genes and their activation pathways, as well as tissue stress and its role in inflammatory and para-inflammatory processes. The main ways towards the realization of cellular stress and its functional blocks were outlined. The main stages of tissue stress and the classification of its typical manifestations, as well as its participation in the development of the classical and non-classical variants of the inflammatory process, were also described. The mechanisms of cellular and tissue stress are structured into the complex systems, which include networks that enable the exchange of information with multidirectional signaling pathways which together make these systems internally contradictory, and the result of their effects is often unpredictable. However, the possible solutions require new theoretical and methodological approaches, one of which includes the transition to integral criteria, which plausibly reflect the holistic image of these processes.
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Affiliation(s)
- Eugeny Yu Gusev
- Laboratory of the Immunology of Inflammation, Institute of Immunology and Physiology, Yekaterinburg, Russian Federation
| | - Natalia V Zotova
- Laboratory of the Immunology of Inflammation, Institute of Immunology and Physiology, Yekaterinburg, Russian Federation.,Department of Medical Biochemistry and Biophysics, Ural Federal University named after B.N.Yeltsin, Yekaterinburg, Russian Federation
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90
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Shen C, Zhang Z, Xie T, Ji J, Xu J, Lin L, Yan J, Kang A, Dai Q, Dong Y, Shan J, Wang S, Zhao X. Rhein Suppresses Lung Inflammatory Injury Induced by Human Respiratory Syncytial Virus Through Inhibiting NLRP3 Inflammasome Activation via NF-κB Pathway in Mice. Front Pharmacol 2020; 10:1600. [PMID: 32047436 PMCID: PMC6997271 DOI: 10.3389/fphar.2019.01600] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/10/2019] [Indexed: 11/17/2022] Open
Abstract
Rhein is one of active anthraquinone components in traditional Chinese herbal medicine Rheum palmatum L., possessing anti-inflammatory, antioxidant, antitumor, antiviral, and hepatoprotective activities. Human respiratory syncytial virus (RSV), a common virus, is able to result in pneumonia and bronchitis, which usually can be seen in infants. However, so far the effects of Rhein on RSV-induced pneumonia are still unknown. As the NLRP3 inflammasome is activated excessively, it is able to lead to inflammatory response and tissue injury in most viral infection process (including RSV infection) of respiratory tract. Therefore, we designed experiments to reveal whether Rhein can treat RSV-induced pneumonia by inhibiting NLRP3 inflammasome activation. In present research, we established the pneumonia model of BALB/C mice caused by RSV. First of all, the pathology of lung tissue and the weight of mice were evaluated, and the corresponding lung index was calculated. Additionally, the expression of pro-inflammatory mediators in serum and lung tissues, and related proteins (NLRP3, ASC and Caspase-1) of NLRP3 inflammasome and NF-κB pathway were detected by Enzyme-linked immunosorbent assay (ELISA), Real-time PCR (RT-PCR), Immunohistochemistry (IHC), and Western blot (WB), respectively. The determination of lung index and lung tissue pathological evaluation revealed that Rhein was able to alleviate lung infection and injury caused by RSV. The results of ELISA showed that Rhein was able to reduce the release of pro-inflammatory cytokines in the serum and lung tissues of RSV-induced BALB/c mice, including IL-1β, IL-6, TNF-α, IL-18, and IL-33. Additionally, it was revealed that Rhein inhibited the immune inflammatory response of RSV-infected mice, which was likely to be associated with the inhibition the NLRP3 inflammasome activation via NF-κB pathway. To sum up, our results indicated that Rhein may inhibit RSV-induced pulmonary inflammatory response effectively; meanwhile, it is emphasized that Rhein therapy is likely to be a promising treatment on the RSV-infected lung inflammation and avoidance of lung tissue damage.
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Affiliation(s)
- Cunsi Shen
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhengguang Zhang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tong Xie
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jianjian Ji
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jianya Xu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lili Lin
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jing Yan
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - An Kang
- Jiangsu Engineering Research Center for Efficient Delivery System of TCM, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qigang Dai
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yingmei Dong
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinjun Shan
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Shouchuan Wang
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Xia Zhao
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Institute of Pediatrics, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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91
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Zhang Y, Shao Y, Lv Z, Zhang W, Zhao X, Guo M, Li C. Molecular cloning and functional characterization of MYC transcription factor in pathogen-challenged Apostichopus japonicus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 102:103487. [PMID: 31472172 DOI: 10.1016/j.dci.2019.103487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/27/2019] [Accepted: 08/27/2019] [Indexed: 06/10/2023]
Abstract
Myelocytomatosis viral oncogene (MYC), a transcription factor in the MYC family, plays vital roles in vertebrate innate immunity by regulating related immune gene expressions. In this study, we cloned and characterized an MYC gene from sea cucumber Apostichopus japonicus via RNA-seq and RACE approaches (designated as AjMYC). A 2074 bp fragment representing the full-length cDNA of AjMYC was obtained. This gene includes an open reading frame (ORF) of 1296 bp encoding a polypeptide of 432 amino acid residues with the molecular weight of 48.85 kDa and theoretical pI of 7.22. SMART analysis indicated that AjMYC shares an MYC common HLH motif (354-406 aa) at the C-terminal. Spatial expression analysis revealed that AjMYC is constitutively expressed in all detected tissues with peak expression in the tentacle. Vibrio splendidus-challenged sea cucumber could significantly boost the expression of AjMYC transcripts by a 5.58-fold increase in the first stage. Similarly, 2.75- and 3.23-fold increases were detected in LPS-exposed coelomocytes at 1 and 24 h, respectively. In this condition, coelomocyte apoptotic rate increased from 11.98% to 56.23% at 1 h and to 59.08% at 24 h. MYC inhibitor treatment could not only inhibit the expression of AjMYC and Ajcaspase3, but also depress the coelomocyte apoptosis. Furthermore, AjMYC overexpression in EPC cells for 24 h also promoted the cell apoptosis rate from 21.31% to 45.85%. Collectively, all these results suggested that AjMYC is an important immune factor in coelomocyte apoptosis toward pathogen-challenged sea cucumber.
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Affiliation(s)
- Yi Zhang
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Yina Shao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Zhimeng Lv
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Weiwei Zhang
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Xuelin Zhao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Ming Guo
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Chenghua Li
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
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92
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Buscetta M, Di Vincenzo S, Miele M, Badami E, Pace E, Cipollina C. Cigarette smoke inhibits the NLRP3 inflammasome and leads to caspase-1 activation via the TLR4-TRIF-caspase-8 axis in human macrophages. FASEB J 2020; 34:1819-1832. [PMID: 31914643 DOI: 10.1096/fj.201901239r] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 10/24/2019] [Accepted: 11/11/2019] [Indexed: 12/17/2022]
Abstract
The NLRP3 inflammasome is formed by the sensor NLRP3, the adaptor ASC, and pro-caspase-1. Assembly and activation of the inflammasome trigger caspase-1-dependent cleavage of pro-IL-1β and pro-IL-18 into their secreted forms. Cigarette smoke is a risk factor for chronic inflammatory diseases and is associated with macrophage dysfunction. The impact of cigarette smoke on NLRP3-dependent responses in macrophages is largely unknown. Herein, we investigated the effects of cigarette smoke extract (CSE) on the NLRP3 inflammasome in human monocyte-derived macrophages (MDMs) and THP-1 cells stimulated with lipopolysaccharide (LPS) and LPS plus the NLRP3 inflammasome activator ATP. We found that CSE inhibited the release of IL-1β and IL-18 as well as the expression of NLRP3 acting mainly at the transcriptional level. Interestingly, we found that CSE increased the caspase-1 activity via an NLRP3-independent and TLR4-TRIF-caspase-8-dependent pathway. Activation of caspase-1 by CSE led to a reduction of the basal glycolytic flux and impaired glycolytic burst in response to LPS. Overall, our findings unveil novel pathways leading to immune-metabolic alterations in human macrophages exposed to cigarette smoke. These mechanisms may contribute to macrophage dysfunction and increased risk of infection in smokers.
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Affiliation(s)
| | - Serena Di Vincenzo
- Istituto per la Ricerca e l'Innovazione Biomedica-Consiglio Nazionale delle Ricerche, Palermo, Italy
| | - Monica Miele
- Fondazione Ri.MED, Palermo, Italy
- Department of Laboratory Medicine and Advanced Biotechnologies, Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione (IRCCS-ISMETT), Palermo, Italy
| | - Ester Badami
- Fondazione Ri.MED, Palermo, Italy
- Department of Laboratory Medicine and Advanced Biotechnologies, Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione (IRCCS-ISMETT), Palermo, Italy
| | - Elisabetta Pace
- Istituto per la Ricerca e l'Innovazione Biomedica-Consiglio Nazionale delle Ricerche, Palermo, Italy
| | - Chiara Cipollina
- Fondazione Ri.MED, Palermo, Italy
- Istituto per la Ricerca e l'Innovazione Biomedica-Consiglio Nazionale delle Ricerche, Palermo, Italy
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93
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Pelaia C, Tinello C, Vatrella A, De Sarro G, Pelaia G. Lung under attack by COVID-19-induced cytokine storm: pathogenic mechanisms and therapeutic implications. Ther Adv Respir Dis 2020; 14:1753466620933508. [PMID: 32539627 PMCID: PMC7298425 DOI: 10.1177/1753466620933508] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/18/2020] [Indexed: 12/17/2022] Open
Abstract
The lung is a key target of the cytokine storm that can be triggered by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), responsible for the widespread clinical syndrome known as coronavirus disease 2019 (COVID-19). Indeed, in some patients, SARS-CoV-2 promotes a dysfunctional immune response that dysregulates the cytokine secretory pattern. Hypercytokinemia underlies the hyperinflammatory state leading to injury of alveolar epithelial cells and vascular endothelial cells, as well as to lung infiltration sustained by neutrophils and macrophages. Within such a pathogenic context, interleukin-6 (IL-6) and other cytokines/chemokines play a pivotal pro-inflammatory role. Therefore, cytokines and their receptors, as well as cytokine-dependent intracellular signalling pathways can be targeted by potential therapies aimed to relieve the heavy burden of cytokine storm. In particular, the anti-IL-6-receptor monoclonal antibody tocilizumab is emerging as one of the most promising pharmacologic treatments. The reviews of this paper are available via the supplemental material section.
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Affiliation(s)
- Corrado Pelaia
- Department of Health Sciences,
University ‘Magna Graecia’ of Catanzaro, Catanzaro, Calabria,
Italy
| | - Caterina Tinello
- Pediatrics Unit, Provincial Outpatient
Center of Catanzaro, Catanzaro, Calabria, Italy
| | - Alessandro Vatrella
- Department of Medicine, Surgery, and
Dentistry, University of Salerno, Salerno, Campania, Italy
| | - Giovambattista De Sarro
- Department of Health Sciences,
University ‘Magna Graecia’ of Catanzaro, Catanzaro, Calabria,
Italy
| | - Girolamo Pelaia
- Campus Universitario ‘Salvatore
Venuta’, Viale Europa – Località Germaneto, Catanzaro, 88100,
Italy
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94
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Thimmulappa RK, Chattopadhyay I, Rajasekaran S. Oxidative Stress Mechanisms in the Pathogenesis of Environmental Lung Diseases. OXIDATIVE STRESS IN LUNG DISEASES 2019. [PMCID: PMC7120104 DOI: 10.1007/978-981-32-9366-3_5] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Globally, respiratory diseases are major cause of disability and mortality, and more alarmingly, it disproportionately affects developing countries, which is largely attributed to poor quality of air. Tobacco smoke and emissions from combustion of fossil fuel and biomass fuel are the major airborne pollutants affecting human lung health. Oxidative stress is the dominant driving force by which the airborne pollutants exert their toxicity in lungs and cause respiratory diseases. Most airborne pollutants are associated with intrinsic oxidative potential and, additionally, stimulate endogenous production of reactive oxygen species (ROS) and reactive nitrogen species (RNS). Elevated ROS and RNS in lungs modulate redox signals and cause irreversible damage to critical biomolecules (lipids, proteins and DNA) and initiate various pathogenic cellular process. This chapter provides an insight into oxidative stress-linked pathogenic cellular process such as lipid peroxidation, inflammation, cell death, mitochondrial dysfunction, endoplasmic reticulum stress, epigenetic changes, profibrotic signals and mucus hypersecretion, which drive the development and progression of lung diseases. Lungs are associated with robust enzymatic and non-enzymatic (GSH, ascorbic acid, uric acid, vitamin E) antioxidant defences. However, sustained production of free radicals due to continuous exposures to airborne pollutants overwhelms lung antioxidant defences and causes oxidative injury. Preclinical studies have demonstrated the critical roles and therapeutic potential of upregulating lung antioxidants for intervention of respiratory diseases; however, so far clinical benefits in antioxidant supplementation trials have been minimal and conflicting. Antioxidants alone may not be effective in treatment of respiratory diseases; however it could be a promising adjunctive therapy.
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95
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Wu HM, Xie QM, Zhao CC, Xu J, Fan XY, Fei GH. Melatonin biosynthesis restored by CpG oligodeoxynucleotides attenuates allergic airway inflammation via regulating NLRP3 inflammasome. Life Sci 2019; 239:117067. [PMID: 31738882 DOI: 10.1016/j.lfs.2019.117067] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 10/29/2019] [Accepted: 11/12/2019] [Indexed: 12/14/2022]
Abstract
AIMS Both CpG oligodeoxynucleotide (CpG-ODN) and melatonin have been reported to induce Th1 response and contribute to allergic asthma resistance. Here, we aimed to reveal how they confer such effect as well as whether they crosstalk with each other. MAIN METHODS Six-week-old Female C57BL/6 mice were challenged by OVA to induce allergic airway inflammation, and were treated with CpG-ODN, CpG-ODN plus Luzindole or melatonin respectively. Bronchoalveolar lavage fluid (BALF) cellularity was classified and counted by Wright's-Giemsa staining. HE and PAS staining were used to analyze airway inflammation. The levels of IL-4, IL-5, IL-13,GM-CSF and IFN-γ, as well as IL-1β and IL-18 were analyzed by ELISA. Protein expressions of ASMT, AANAT, NLRP3, IL-1β and caspase-1 in lung tissue were detected by Western blotting, expression of ASMT and AANAT were further observed by immunohistochemistry. KEY FINDINGS We found that CpG-ODN considerably suppressed OVA-induced airway leukocytes infiltration, goblet cell hyperplasia and Th2 cytokines production. Furthermore, the resolution effect of CpG-ODN on OVA-induced allergic airway inflammation occurred in parallel with decreased-activation of NLRP3 inflammasome and increased biosynthesis of melatonin. Blocking the effect of endogenous melatonin by Luzindole abolished the suppressive effect of CpG-ODN on OVA-induced airway inflammation and activation of NLRP3 inflammasome, suggesting such effect was mediated by endogenous melatonin. Moreover, exogenous melatonin pronouncedly ameliorated airway inflammation and decreased the activation of NLRP3 inflammasome. SIGNIFICANCE These results proven that CpG-ODN protects against allergic airway inflammation via suppressing the activation of NLRP3 inflammasome, and such effect may be resulted from the restored-production of melatonin.
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Affiliation(s)
- Hui-Mei Wu
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui 230022, China.
| | - Qiu-Meng Xie
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui 230022, China
| | - Cui-Cui Zhao
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui 230022, China
| | - Juan Xu
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui 230022, China
| | - Xiao-Yun Fan
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui 230022, China
| | - Guang-He Fei
- Anhui Geriatric Institute, Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Jixi Road 218, Hefei, Anhui 230022, China.
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96
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Wadhwa R, Dua K, Adcock IM, Horvat JC, Kim RY, Hansbro PM. Cellular mechanisms underlying steroid-resistant asthma. Eur Respir Rev 2019; 28:28/153/190096. [PMID: 31636089 DOI: 10.1183/16000617.0096-2019] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 09/19/2019] [Indexed: 01/04/2023] Open
Abstract
Severe steroid-resistant asthma is clinically important, as patients with this form of the disease do not respond to mainstay corticosteroid therapies. The heterogeneity of this form of asthma and poor understanding of the pathological mechanisms involved hinder the identification of therapeutic targets and the development of more effective therapies. A major limiting factor in the understanding of severe steroid-resistant asthma is the existence of multiple endotypes represented by different immunological and inflammatory phenotypes, particularly in adults. Several clinical and experimental studies have revealed associations between specific respiratory infections and steroid-resistant asthma in adults. Here, we discuss recent findings from other authors as well as our own studies that have developed novel experimental models for interrogating the association between respiratory infections and severe steroid-resistant asthma. These models have enabled the identification of new therapies using macrolides, as well as several novel disease mechanisms, including the microRNA-21/phosphoinositide 3-kinase/histone deacetylase 2 axis and NLRP3 inflammasomes, and highlight the potential of these mechanisms as therapeutic targets.
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Affiliation(s)
- Ridhima Wadhwa
- Centre for Inflammation, Centenary Institute, Sydney, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, Australia.,Both authors contributed equally
| | - Kamal Dua
- Centre for Inflammation, Centenary Institute, Sydney, Australia.,Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, Australia.,Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Both authors contributed equally
| | - Ian M Adcock
- The Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia
| | - Richard Y Kim
- Centre for Inflammation, Centenary Institute, Sydney, Australia.,Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Faculty of Science, University of Technology Sydney, Sydney, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, Australia.,Priority Research Centre for Healthy Lungs, University of Newcastle and Hunter Medical Research Institute, Newcastle, Australia.,Faculty of Science, University of Technology Sydney, Sydney, Australia
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97
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Theofani E, Semitekolou M, Morianos I, Samitas K, Xanthou G. Targeting NLRP3 Inflammasome Activation in Severe Asthma. J Clin Med 2019; 8:jcm8101615. [PMID: 31590215 PMCID: PMC6833007 DOI: 10.3390/jcm8101615] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 12/20/2022] Open
Abstract
Severe asthma (SA) is a chronic lung disease characterized by recurring symptoms of reversible airflow obstruction, airway hyper-responsiveness (AHR), and inflammation that is resistant to currently employed treatments. The nucleotide-binding oligomerization domain-like Receptor Family Pyrin Domain Containing 3 (NLRP3) inflammasome is an intracellular sensor that detects microbial motifs and endogenous danger signals and represents a key component of innate immune responses in the airways. Assembly of the NLRP3 inflammasome leads to caspase 1-dependent release of the pro-inflammatory cytokines IL-1β and IL-18 as well as pyroptosis. Accumulating evidence proposes that NLRP3 activation is critically involved in asthma pathogenesis. In fact, although NLRP3 facilitates the clearance of pathogens in the airways, persistent NLRP3 activation by inhaled irritants and/or innocuous environmental allergens can lead to overt pulmonary inflammation and exacerbation of asthma manifestations. Notably, administration of NLRP3 inhibitors in asthma models restrains AHR and pulmonary inflammation. Here, we provide an overview of the pathophysiology of SA, present molecular mechanisms underlying aberrant inflammatory responses in the airways, summarize recent studies pertinent to the biology and functions of NLRP3, and discuss the role of NLRP3 in the pathogenesis of asthma. Finally, we contemplate the potential of targeting NLRP3 as a novel therapeutic approach for the management of SA.
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Affiliation(s)
- Efthymia Theofani
- Cellular Immunology Laboratory, Center for Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Maria Semitekolou
- Cellular Immunology Laboratory, Center for Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Ioannis Morianos
- Cellular Immunology Laboratory, Center for Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Konstantinos Samitas
- 7th Respiratory Clinic and Asthma Center, 'Sotiria' Athens Chest Hospital, 11527 Athens, Greece
| | - Georgina Xanthou
- Cellular Immunology Laboratory, Center for Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece.
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98
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Yue Z, Lv Z, Shao Y, Zhang W, Zhao X, Guo M, Li C. Cloning and characterization of the target protein subunit lst8 of rapamycin in Apostichopus japonicus. FISH & SHELLFISH IMMUNOLOGY 2019; 92:460-468. [PMID: 31233778 DOI: 10.1016/j.fsi.2019.06.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 06/09/2023]
Abstract
Autophagy plays an important role in the immune defense systems of vertebrates through the interaction between the lethal with SEC13 protein 8 (lst8) and the mechanistic target of rapamycin. In the present study, a novel invertebrate lst8 homologue is identified from Apostichopus japonicus (designated as Ajlst8) via polymerase chain reaction. The full-length complementary DNA of Ajlst8 comprises a 5'-untranslated region (UTR) of 78 base pair (bp), a 3'-UTR of 479 bp, and a putative open reading frame of 951 bp; hence, 316 amino acids are encoded. Structural analysis shows that the deduced amino acid of Ajlst8 shares six typical WD40 domains (28 aa-248 aa). Spatial expression analysis indicates that Ajlst8 is ubiquitously expressed in all the examined tissues, with a larger magnitude in coelomocytes. Vibrio splendidus infection in vivo and lipopolysaccharide exposure in vitro can significantly upregulate the messenger RNA expression of Ajlst8 by 2.39-fold and 1.93-fold compared with the control group, respectively. LPS exposure could also significantly induced the protein level of Ajlst8 to 2.38-fold and the autophagy level was markedly increased by 3.08-fold under same condition. The RNA interference of Ajlst8 in primary coelomocytes also reduces the relative expression of autophagy with a 0.71-fold decrease in the ratio of LC3-II/LC3-I compared with that in the control group. These results indicate that Ajlst8 is a novel immune regulator that may be involved in the antibacterial response process of sea cucumber by regulating autophagy.
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Affiliation(s)
- Zongxu Yue
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Zhimeng Lv
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Yina Shao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Weiwei Zhang
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Xuelin Zhao
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Ming Guo
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China
| | - Chenghua Li
- State Key Laboratory for Quality and Safety of Agro-products, Ningbo University, Ningbo, 315211, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
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99
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Rosli S, Kirby FJ, Lawlor KE, Rainczuk K, Drummond GR, Mansell A, Tate MD. Repurposing drugs targeting the P2X7 receptor to limit hyperinflammation and disease during influenza virus infection. Br J Pharmacol 2019; 176:3834-3844. [PMID: 31271646 PMCID: PMC6780046 DOI: 10.1111/bph.14787] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background and Purpose Severe influenza A virus (IAV) infections are associated with damaging hyperinflammation that can be fatal. There is an urgent need to identify new therapeutic agents to treat severe and pathogenic IAV infections. Repurposing of drugs with an existing and studied pharmacokinetic and safety profile is a highly attractive potential strategy. We have previously demonstrated that the NLRP3 inflammasome plays time‐dependent roles during severe IAV infection with early protective responses and later dysregulation leading to excessive inflammation, contributing to disease severity. Experimental Approach We tested two existing drugs, probenecid and AZ11645373, to target P2X7 receptor signalling and dampen NLRP3 inflammasome responses during severe IAV infection. In vitro, the drugs were assessed for their ability to limit NLRP3 inflammasome‐dependent IL‐1β secretion in macrophage cultures. In vivo, their effects were assessed on hyperinflammation and disease during severe IAV infection in C57BL/6 mice. Key Results Treatment of macrophages with probenecid or AZ11645373 in vitro diminished NLRP3 inflammasome‐dependent IL‐1β secretion. Intranasal therapeutic treatment of mice displaying severe influenza disease with probenecid or AZ11645373 reduced pro‐inflammatory cytokine production, cellular infiltrates in the lung, and provided protection against disease. Importantly, these drugs could be administered at either early or late stage of disease and provide therapeutic efficacy. Conclusions and Implications Our study demonstrates that the anti‐inflammatory drugs probenecid and AZ11645373, which have documented pharmacokinetics and safety profiles in humans, are effective at dampening hyperinflammation and severe influenza disease providing potentially new therapeutic strategies for treating severe or pathogenic IAV infections.
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Affiliation(s)
- Sarah Rosli
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Francis J Kirby
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Kate E Lawlor
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Kate Rainczuk
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Grant R Drummond
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Bundoora, Victoria, Australia
| | - Ashley Mansell
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
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Wang B, Wang J, Lu D, Qi N, Liu Q. The Defensive Action of LYRM03 on LPS-Induced Acute Lung Injury by NF-κB/TLR4/NLRP3 Signals. J INVEST SURG 2019; 34:284-296. [PMID: 31274341 DOI: 10.1080/08941939.2019.1634165] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The aim of the current investigation was to study the role of 3-amino-2-hydroxy-4-phenyl-valyl-isoleucine (LYRM03) in lipopolysaccharide (LPS)-induced acute lung injury (ALI) and investigate its potential pathogenesis. An LPS-induced ALI model was produced with LPS (5 mg/kg) followed by 24 h of injury. Rats were randomly assigned to 6 groups for in vivo experiments: (1) Sham, (2) LYRM03 (20 mg/kg), (3) LPS, (4) LPS plus LYRM03 (5 mg/kg), (5) LPS plus LYRM03 (10 mg/kg), and (6) LPS plus LYRM03 (20 mg/kg). The rat alveolar macrophage cell line (NR8383) cells were divided into 6 groups for in vitro experiments: (1) Sham, (2) LYRM03 (200 μmol/L), (3) LPS (100 ng/mL), (4) LPS plus LYRM03 (50 μmol/L), (5) LPS plus LYRM03 (100 μmol/L), and (6) LPS plus LYRM03 (200 μmol/L). Further study about siRNA targeting NF-κB p65, TLR4, and NLRP3 to explore the potential mechanism of LYRM03 in the LPS-induced ALI models have been done. Therefore, LYRM03 decreased LPS-induced ALI and NR8383 activation as demonstrated through hematoxylin-eosin staining and western blot analysis in vivo and in vitro. LYRM03 ameliorated the content of protein in bronchoalveolar lavage fluid, myeloperoxidase in the lung and malondialdehyde (MDA) in serum. In addition, LYRM03 ameliorated the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-18 (IL-18) in the serum of rats and the supernatant of NR8383 cells. Moreover, LYRM03 significantly inhibited the activities of nuclear factor kappa B (NF-κB), myeloid differentiation factor 88 (MyD88), and toll-like receptor 4 (TLR4). LYRM03 also reduced the increase in the inflammasome, including apoptosis-related speck-like protein containing CARD (ASC), and NOD-like receptor 3 (NLRP3), in LPS-stimulated rats and NR8383 cells. The extent of injury and lung injury scores in the LYRM03 (20 mg/kg) + siRNA targeting NF-κB p65, TLR4, or NLRP3 + LPS-treated rats were higher than that in the LYRM03 (20 mg/kg) + LPS-treated rats. In summary, LYRM03 conferred an intensely lung defensive action on LPS-induced ALI in vivo and in vitro, which could be associated with the abatement of TLR4-induced NLRP3/NF-κB.
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Affiliation(s)
- Bin Wang
- Department of Critical Care Medicine, Rizhao People Hospital, Rizhao, People's Republic of China
| | - Jiaoyue Wang
- Department of Critical Care Medicine, Rizhao People Hospital, Rizhao, People's Republic of China
| | - Daopeng Lu
- Department of Emergency, Jinan Medical Emergency Center, Jinan, People's Republic of China
| | - Na Qi
- Department of Respiratory Medicine, Hengshui People Hospital, Hengshui, People's Republic of China
| | - Qin Liu
- Department of Emergency, Jinan Medical Emergency Center, Jinan, People's Republic of China
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