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Zhao T, Li M, Yan Q, Gu J, Liu L. Effect of remote ischemic preconditioning intervention on serum levels of microRNA-582-5p/HMGB1 in patients with acute cerebral infarction. Clin Neurol Neurosurg 2024; 241:108291. [PMID: 38701547 DOI: 10.1016/j.clineuro.2024.108291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/29/2023] [Accepted: 04/18/2024] [Indexed: 05/05/2024]
Abstract
OBJECTIVE Acute cerebral infarction (ACI) contributes to disability and death accross the globe. Remote ischemic preconditioning (RIPC) reduces cerebral infarct size and improves neurological function in ACI. We conducted this research to reveal the effects of RIPC intervention on serum levels of microRNA-582-5p (miR-582-5p)/high mobility group box-1 protein (HMGB1), inflammation, oxidative stress and neurological function in patients with ACI. METHODS In this study, 158 patients with ACI were prospectively selected and randomized into the control (administered symptomatic medication alone) and the RIPC (underwent RIPC of the limbs based on medication) groups, with their clinical baseline data documented. Serum levels of miR-582-5p, and HMGB1 and inflammatory factors [tumor necrosis factor alpha (TNF-α)/interleukin-1beta (IL-1β)/IL-10] were assessed by RT-qPCR/ELISA, followed by comparisons of oxidative stress indices [glutathione-peroxidase (GSH-Px)/catalase (CAT)/superoxide dismutase (SOD)] using a fully automatic biochemical analyzer. Correlations between serum miR-582-5p with serum HMGB1, and between their levels with TNF-α/IL-1β/IL-10 were analyzed by Pearson analysis. The NIHSS score/Barthel Index scale were used to assess neurological function/daily living ability. Intervention safety for ACI patients was evaluated. RESULTS RIPC intervention increased serum miR-582-5p levels and decreased serum HMGB1 levels in ACI patients. RIPC intervention significantly reduced inflammation (diminished TNF-α/IL-1β levels, increased IL-10 level) and oxidative stress (elevated GSH-Px/CAT/SOD levels) in ACI patients. Serum miR-582-5p was negatively correlated with TNF-α and IL-1β levels, while positively correlated with IL-10 level, while HMGB1 was positively correlated with TNF-α and IL-1β levels, while negatively correlated with IL-10 level. miR-582-5p was negatively correlated with HMGB1. RIPC intervention improved neurological function (reduced NIHSS, increased Barthel scores) in ACI patients to some extent. RIPC had certain effectiveness and safety in the treatment of ACI. CONCLUSION After RIPC intervention, serum miR-582-5p levels were increased, HMGB1 levels were decreased, and inflammation and oxidative stress were reduced in ACI patients, which mitigated neurological deficits, improved patients' ability to perform life activities, and exerted neuroprotective effects to some extent.
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Affiliation(s)
- Ting Zhao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China.
| | - Meng Li
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
| | - Qiuyue Yan
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
| | - Juxian Gu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
| | - Lige Liu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, Hebei 061000, China
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Lin Z, Bao R, Niu Y, Kong X. KLF5-mediated pyroptosis of airway epithelial cells leads to airway inflammation in asthmatic mice through the miR-182-5p/TLR4 axis. Mol Immunol 2024; 170:9-18. [PMID: 38593669 DOI: 10.1016/j.molimm.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/07/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
Asthma is viewed as an airway disease and an inflammatory condition. This study aims to reveal the role of Kruppel-like factor 5 (KLF5)-mediated pyroptosis of airway epithelial cells in airway inflammation in asthma. The asthmatic mouse model was established. The mice were infected with the lentivirus containing sh-KLF5, antagomiR-182-5p, and pc-Toll-like receptor 4 (TLR4). Airway hyperresponsiveness was measured, and the cells in bronchoalveolar lavage fluid (BALF) were sorted and counted. The expression levels of interleukin (IL)-4/IL-13/IL-6/IL-18/IL-1β/NOD-like receptor family pyrin domain containing 3 (NLRP3)/N-gasdermin D (GSDMD-N)/cleaved caspase-1 were detected. The pathological changes in lung tissue were observed. The enrichment of KLF5 in the miR-182-5p promoter region was measured. The binding relationship among KLF5, miR-182-5p, and TLR4 were analyzed. KLF5 was highly expressed in asthmatic mice. Silencing KLF5 improved airway resistance and lung dynamic compliance, reduced the cells in BALF and the expression of IL-4/IL-13/IL-6/NLRP3/GSDMD-N/cleaved caspase-1/IL-18/IL-1β, and alleviated the pathological changes. Mechanistically, KLF5 bonded to the miR-182-5p promoter to inhibit miR-182-5p expression, and miR-182-5p inhibited TLR4. Silencing miR-182-5p or TLR4 overexpression reversed the improvement of silencing KLF5 on airway inflammation and pyroptosis in asthmatic mice. In conclusion, KLF5 inhibited miR-182-5p to promote TLR4 expression, thus aggravating pyroptosis and airway inflammation in asthmatic mice.
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Affiliation(s)
- Zhi Lin
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan 030001, China.
| | - Rong Bao
- Department of Clinical Laboratory, The First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Yang Niu
- Department of Respiratory, Shanxi Province Bronchial Asthma Hospital, China
| | - Xiaomei Kong
- Department of Pulmonary and Critical Care Medicine, Shanxi Province Key Laboratory of Respiratory, The First Hospital of Shanxi Medical University, Taiyuan 030001, China.
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Russo C, Lombardo GE, Bruschetta G, Rapisarda A, Maugeri A, Navarra M. Bergamot Byproducts: A Sustainable Source to Counteract Inflammation. Nutrients 2024; 16:259. [PMID: 38257152 PMCID: PMC10819577 DOI: 10.3390/nu16020259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Chronic inflammation is the result of an acute inflammatory response that fails to eliminate the pathogenic agent or heal the tissue injury. The consequence of this failure lays the foundations to the onset of several chronic ailments, including skin disorders, respiratory and neurodegenerative diseases, metabolic syndrome, and, eventually, cancer. In this context, the long-term use of synthetic anti-inflammatory drugs to treat chronic illnesses cannot be tolerated by patients owing to the severe side effects. Based on this, the need for novel agents endowed with anti-inflammatory effects prompted to search potential candidates also within the plant kingdom, being recognized as a source of molecules currently employed in several therapeutical areas. Indeed, the ever-growing evidence on the anti-inflammatory properties of dietary polyphenols traced the route towards the study of flavonoid-rich sources, such as Citrus bergamia (bergamot) and its derivatives. Interestingly, the recent paradigm of the circular economy has promoted the valorization of Citrus fruit waste and, in regard to bergamot, it brought to light new evidence corroborating the anti-inflammatory potential of bergamot byproducts, thus increasing the scientific knowledge in this field. Therefore, this review aims to gather the latest literature supporting the beneficial role of both bergamot derivatives and waste products in different models of inflammatory-based diseases, thus highlighting the great potentiality of a waste re-evaluation perspective.
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Affiliation(s)
- Caterina Russo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (C.R.); (G.E.L.); (A.R.); (M.N.)
| | - Giovanni Enrico Lombardo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (C.R.); (G.E.L.); (A.R.); (M.N.)
| | - Giuseppe Bruschetta
- Department of Veterinary Sciences, University of Messina, Viale G. Palatucci, 98168 Messina, Italy;
| | - Antonio Rapisarda
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (C.R.); (G.E.L.); (A.R.); (M.N.)
| | - Alessandro Maugeri
- Department of Veterinary Sciences, University of Messina, Viale G. Palatucci, 98168 Messina, Italy;
| | - Michele Navarra
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy; (C.R.); (G.E.L.); (A.R.); (M.N.)
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Zhou H, Shi X, Yu Y, Yang L, OuYang J, Bian Y, Liu Y, Li G. Puerarin Alleviates Oxidized Oil-Induced Oxidative Injury and Inflammation via Inhibition of the Nrf2/Keap1 and HMGB1/TLR4/MAPK Signaling Pathways: An Investigation in a Chicken Model. Mol Nutr Food Res 2023; 67:e2200663. [PMID: 37776050 DOI: 10.1002/mnfr.202200663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 05/29/2023] [Indexed: 10/01/2023]
Abstract
SCOPE Puerarin has possessed a wide range of pharmacological activities. However, little is known about the protective effects of puerarin on the oxidized oil-induced injury. Here, the antioxidant and anti-inflammatory effects of puerarin are described using a chicken model. METHODS AND RESULTS A total of 360 broilers are arranged in four treatments. Diets include two types of soybean oil (fresh or oxidized) and two levels of puerarin (0 or 750 mg kg-1 ). Results show that puerarin alleviates oxidized soybean oil-induced hepatic and thymic oxidative injury. This effect is observed by increasing the SOD activity and the expressions of Nrf2 signaling pathway-related genes and reducing the MDA content in the liver and thymus. Moreover, puerarin supplementation decreases the concentrations and mRNA levels of pro-inflammatory factors in the liver and thymus. The potential mechanism responsible for this is the decrease in the mRNA or protein levels of HMGB1, TLR4, MyD88, and p65 in the liver or thymus. Western blotting results indicate that puerarin also decreases the phosphorylation of JNK1/2, ERK1/2, and p38 in the liver and thymus. CONCLUSION This study demonstrates puerarin may be a potential nutrient supplement in the treatment of oxidized oil-induced damage, and the Nrf2/Keap1 and HMGB1/TLR4/MAPK signaling pathways might be its important target.
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Affiliation(s)
- Hua Zhou
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Xuan Shi
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Yingmei Yu
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Lei Yang
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Jingxin OuYang
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Yinhao Bian
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Yichun Liu
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
| | - Guanhong Li
- Jiangxi Province Key Laboratory of Animal Nutrition, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, P. R. China
- Jiangxi Province Key Innovation Center of Integration in Production and Education for High-quality and Safe Livestock and Poultry, Nanchang, 330045, P. R. China
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Teymournejad O, Sharma AK, Abdelwahed M, Kader M, Ahmed I, Elkafas H, Ismail N. Hepatocyte-specific regulation of autophagy and inflammasome activation via MyD88 during lethal Ehrlichia infection. Front Immunol 2023; 14:1212167. [PMID: 38022511 PMCID: PMC10662044 DOI: 10.3389/fimmu.2023.1212167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Hepatocytes play a crucial role in host response to infection. Ehrlichia is an obligate intracellular bacterium that causes potentially life-threatening human monocytic ehrlichiosis (HME) characterized by an initial liver injury followed by sepsis and multi-organ failure. We previously showed that infection with highly virulent Ehrlichia japonica (E. japonica) induces liver damage and fatal ehrlichiosis in mice via deleterious MyD88-dependent activation of CASP11 and inhibition of autophagy in macrophage. While macrophages are major target cells for Ehrlichia, the role of hepatocytes (HCs) in ehrlichiosis remains unclear. We investigated here the role of MyD88 signaling in HCs during infection with E. japonica using primary cells from wild-type (WT) and MyD88-/- mice, along with pharmacologic inhibitors of MyD88 in a murine HC cell line. Similar to macrophages, MyD88 signaling in infected HCs led to deleterious CASP11 activation, cleavage of Gasdermin D, secretion of high mobility group box 1, IL-6 production, and inflammatory cell death, while controlling bacterial replication. Unlike macrophages, MyD88 signaling in Ehrlichia-infected HCs attenuated CASP1 activation but activated CASP3. Mechanistically, active CASP1/canonical inflammasome pathway negatively regulated the activation of CASP3 in infected MyD88-/- HCs. Further, MyD88 promoted autophagy induction in HCs, which was surprisingly associated with the activation of the mammalian target of rapamycin complex 1 (mTORC1), a known negative regulator of autophagy. Pharmacologic blocking mTORC1 activation in E. japonica-infected WT, but not infected MyD88-/- HCs, resulted in significant induction of autophagy, suggesting that MyD88 promotes autophagy during Ehrlichia infection not only in an mTORC1-indpenedent manner, but also abrogates mTORC1-mediated inhibition of autophagy in HCs. In conclusion, this study demonstrates that hepatocyte-specific regulation of autophagy and inflammasome pathway via MyD88 is distinct than MyD88 signaling in macrophages during fatal ehrlichiosis. Understanding hepatocyte-specific signaling is critical for the development of new therapeutics against liver-targeting pathogens such as Ehrlichia.
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Affiliation(s)
- Omid Teymournejad
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Aditya Kumar Sharma
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Mohammed Abdelwahed
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Hofstra School of Medicine, North Well Health, New York, NY, United States
| | - Muhamuda Kader
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ibrahim Ahmed
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Hoda Elkafas
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Nahed Ismail
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
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Xie X, Wang F, Ge W, Meng X, Fan L, Zhang W, Wang Z, Ding M, Gu S, Xing X, Sun X. Scutellarin attenuates oxidative stress and neuroinflammation in cerebral ischemia/reperfusion injury through PI3K/Akt-mediated Nrf2 signaling pathways. Eur J Pharmacol 2023; 957:175979. [PMID: 37611841 DOI: 10.1016/j.ejphar.2023.175979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/23/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
Cerebral ischemia/reperfusion injury (CIRI) seriously threatens human life and health. Scutellarin (Scu) exhibits neuroprotective effects, but little is known about its underlying mechanism. Therefore, we explored its protective effect on CIRI and the underlying mechanism. Our results demonstrated that Scu rescued HT22 cells from cytotoxicity induced by oxygen and glucose deprivation/reoxygenation (OGD/R). Scu also showed antioxidant activity by promoting nuclear factor erythroid 2-related factor 2 (Nrf2) nuclear translocation, upregulating heme oxygenase-1 (HO-1) expression, increasing superoxide dismutase (SOD) activity, and inhibiting reactive oxygen species (ROS) generation in vitro. Additionally, Scu reduced nuclear factor-kappa B (NF-κB) activity and the levels of pro-inflammatory factors. Interestingly, these effects were abolished by Nrf2 inhibition. Furthermore, Scu reduced infarct volume and blood-brain barrier (BBB) permeability, improved sensorimotor functions and depressive behaviors, and alleviated oxidative stress and neuroinflammation in rats subjected to middle cerebral artery occlusion/reperfusion (MCAO/R). Mechanistically, Scu-induced Nrf2 nuclear accumulation and inactivation of NF-κB were accompanied by an enhanced level of phosphorylated protein kinase B (p-AKT) both in vitro and in vivo. Pharmacologically inhibiting the phosphatidylinositol-3-kinase/protein kinase B (PI3K/AKT) pathway blocked Scu-induced Nrf2 nuclear translocation and inactivation of NF-κB, as well as its antioxidant and anti-inflammatory activities. In summary, these results suggest that Scu exhibits antioxidant, anti-inflammatory, and neuroprotective effects in CIRI through Nrf2 activation mediated by the PI3K/Akt pathway.
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Affiliation(s)
- Xueheng Xie
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Fan Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Wenxiu Ge
- Research Center on Life Sciences and Environmental Sciences, Harbin University of Commerce, Harbin, 150076, China
| | - Xiangbao Meng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Lijuan Fan
- Kunming Longjin Pharmaceutical Co., Ltd, Kunming, 650503, China
| | - Wei Zhang
- Kunming Longjin Pharmaceutical Co., Ltd, Kunming, 650503, China
| | - Zhen Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China
| | - Meng Ding
- Guizhou University of Traditional Chinese Medicine, Guizhou, 550025, China
| | - Shengliang Gu
- Guizhou University of Traditional Chinese Medicine, Guizhou, 550025, China
| | - Xiaoyan Xing
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China.
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicines, Ministry of Education, Beijing, 100193, China; Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine Against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing, 100193, China.
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Jiang L, Liu T, Lyu K, Chen Y, Lu J, Wang X, Long L, Li S. Inflammation-related signaling pathways in tendinopathy. Open Life Sci 2023; 18:20220729. [PMID: 37744452 PMCID: PMC10512452 DOI: 10.1515/biol-2022-0729] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 09/26/2023] Open
Abstract
Tendon is a connective tissue that produces movement by transmitting the force produced by muscle contraction to the bones. Most tendinopathy is caused by prolonged overloading of the tendon, leading to degenerative disease of the tendon. When overloaded, the oxygen demand of tenocytes increases, and the tendon structure is special and lacks blood supply, which makes it easier to form an oxygen-deficient environment in tenocytes. The production of reactive oxygen species due to hypoxia causes elevation of inflammatory markers in the tendon, including PGE2, IL-1β, and TNF-α. In the process of tendon healing, inflammation is also a necessary stage. The inflammatory environment formed by cytokines and various immune cells play an important role in the clearance of necrotic material, the proliferation of tenocytes, and the production of collagen fibers. However, excessive inflammation can lead to tendon adhesions and hinder tendon healing. Some important and diverse biological functions of the body originate from intercellular signal transduction, among which cytokine mediation is an important way of signal transduction. In particular, NF-κB, NLRP3, p38/MAPK, and signal transducer and activator of transcription 3, four common signaling pathways in tendinopathy inflammatory response, play a crucial role in the regulation and transcription of inflammatory factors. Therefore, summarizing the specific mechanisms of inflammatory signaling pathways in tendinopathy is of great significance for an in-depth understanding of the inflammatory response process and exploring how to inhibit the harmful part of the inflammatory response and promote the beneficial part to improve the healing effect of the tendon.
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Affiliation(s)
- Li Jiang
- School of Physical Education, Southwest Medical University, Luzhou, 646000, China
| | - Tianzhu Liu
- Neurology Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Kexin Lyu
- School of Physical Education, Southwest Medical University, Luzhou, 646000, China
| | - Yixuan Chen
- School of Physical Education, Southwest Medical University, Luzhou, 646000, China
| | - Jingwei Lu
- School of Physical Education, Southwest Medical University, Luzhou, 646000, China
| | - Xiaoqiang Wang
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Longhai Long
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Sen Li
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital
of Medical School, Nanjing University, Nanjing, 210000, China
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Nedeva D, Kowal K, Mihaicuta S, Guidos Fogelbach G, Steiropoulos P, Jose Chong-Neto H, Tiotiu A. Epithelial alarmins: a new target to treat chronic respiratory diseases. Expert Rev Respir Med 2023; 17:773-786. [PMID: 37746733 DOI: 10.1080/17476348.2023.2262920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION In response to injury, epithelial cells release alarmins including thymic stromal lymphopoietin (TSLP), high mobility group-box-1 (HMGB1), interleukin (IL)-33 and -25 that can initiate innate immune responses. These alarmins are recognized as activators of T2-immune responses characteristic for asthma, but recent evidence highlighted their role in non-T2 inflammation, airway remodeling, and pulmonary fibrosis making them an attractive therapeutic target for chronic respiratory diseases (CRD). AREAS COVERED In this review, firstly we discuss the role of TSLP, IL-33, IL-25, and HMGB1 in the pathogenesis of asthma, COPD, idiopathic pulmonary fibrosis, and cystic fibrosis according to the published data. In the second part, we summarize the current evidence concerning the efficacy of the antialarmin therapies in CRD. Recent clinical trials showed that anti-TSLP and IL-33/R antibodies can improve severe asthma outcomes. Blocking the IL-33-mediated pathway decreased the exacerbation rate in COPD patients with more important benefit for former-smokers. EXPERT OPINION Despite progress in the understanding of the alarmins' role in the pathogenesis of CRD, all their mechanisms of action are not yet identified. Blocking IL-33 and TSLP pathways offers an interesting option to treat severe asthma and COPD, but future investigations are needed to establish their place in the treatment strategies.
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Affiliation(s)
- Denislava Nedeva
- Clinic of Asthma and Allergology, UMBAL Alexandrovska, Medical University Sofia, Sofia, Bulgaria
| | - Krzysztof Kowal
- Department of Experimental Allergology and Immunology, Department of Internal Medicine and Allergology, Medical University of Bialystok, Bialystok, Poland
| | - Stefan Mihaicuta
- Center for Research and Innovation in Precision Medicine and Pharmacy, University of Medicine and Pharmacy, Timisoara, Romania
- Department of Pulmonology, "Victor Babes" University of Medicine and Pharmacy, Timisoara, Romania
| | | | - Paschalis Steiropoulos
- Department of Respiratory Medicine, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Herberto Jose Chong-Neto
- Division of Allergy and Immunology, Complexo Hospital de Clinicas Federal University of Paraná, Curitiba, PR, Brazil
| | - Angelica Tiotiu
- Department of Pulmonology, University Hospital of Nancy, Vandœuvre-lès-Nancy, France
- Development, Adaptation and Disadvantage. Cardiorespiratory regulations and motor control (EA 3450 DevAH), University of Lorraine, Vandœuvre-lès-Nancy, France
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Zheng J, Zhang R, Liu C, Yang H, Jin X. The TLR4/NF-κB signaling pathway-mediated type 2 skewing of T helper cell in cough variant asthma was counteracted by ethanol extract of Anacyclus pyrethrum root. Immunobiology 2023; 228:152379. [PMID: 36990039 DOI: 10.1016/j.imbio.2023.152379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/08/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023]
Abstract
Type 2 T helper (Th2) cells-mediated immune response plays a pivotal role in the pathogenesis of cough variant asthma (CVA), and this study aims to determine the effect and mechanism of ethanol extract of Anacyclus pyrethrum root (EEAP) on regulating Th2 response in CVA. Peripheral blood mononuclear cells (PBMCs) collected from patients with CVA, and naive CD4+T cells induced by Th2-polarizing medium were administrated with EEAP. Interestingly, through conducting flow cytometry and enzyme linked immunosorbent assay method, we found that EEAP significantly alleviated Th2 skewing and increased Th1 response in these two kinds of cells. Results of western blot assay and quantitative reverse transcription PCR displayed that EEAP suppressed the expression of TLR4, total NF-κB p65, nuclear NF-κB p65 and the downstream genes. Subsequently, we proved that TLR4 antagonist E5564 played a similar improvement role to EEAP in Th1/Th2 imbalance, while combination of TLR4 agonist LPS and EEAP abolished the inhibitory effect of EEAP on Th2 polarization in Th2-induced CD4+T cells. Finally, CVA models induced by ovalbumin and capsaicin were established in cavies, and data showed that EEAP also improved Th1/Th2 imbalance in CVA in vivo, manifested in the increase of IL4+CD4+T cell ratio, Th2 cytokines (IL-4, IL-5, IL-6 and IL-13) and the decrease of Th1 cytokines (IL-2 and IFN-γ). Co-treatment of LPS and EEAP counteracted the inhibition of EEAP on Th2 response in CVA model cavies. Moreover, we found that EEAP mitigated airway inflammation and hyper-responsiveness in vivo, which was abolished by the combined application of LPS. In a word, EEAP restores Th1/Th2 balance in CVA through restraining the TLR4/NF-кB signaling pathway. This study may contribute to the clinical application of EEAP in CVA-related disease.
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Affiliation(s)
- Jun Zheng
- Department of Critical Care Medicine, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Rui Zhang
- Department of Pharmacy, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Changjiang Liu
- Department of Pharmacy, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Hao Yang
- Department of Pharmacy, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Xiaoyue Jin
- Department of Pharmacy, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China.
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10
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Ebrahimi V, Rastegar-Moghaddam SH, Mohammadipour A. Therapeutic Potentials of MicroRNA-126 in Cerebral Ischemia. Mol Neurobiol 2023; 60:2062-2069. [PMID: 36596965 DOI: 10.1007/s12035-022-03197-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/23/2022] [Indexed: 01/05/2023]
Abstract
Stroke is a leading cause of death and disability worldwide. It is among the most common neurological disorders with an 8-10% lifetime risk. Ischemic stroke accounts for about 85% of all strokes and damages the brain tissue via various damaging mechanisms. Following cerebral ischemia, the disrupted blood-brain barrier (BBB) leads to cerebral edema formation caused by activation of oxidative stress, inflammation, and apoptosis, targeting primarily endothelial cells. Activation of the protective mechanisms might favor fewer damages to the neural tissue. MicroRNA (miR)-126 is an endothelial cell-specific miR involved in angiogenesis. MiR-126 orchestrates endothelial progenitor cell functions under hypoxic conditions and could inhibit ischemia-induced oxidative stress and inflammation. It alleviates the BBB disruption by preventing an augment in matrix metalloproteinase level and halting the decrease in the junctional proteins, including zonula occludens-1 (ZO-1), claudin-5, and occludin levels. Moreover, miR-126 enhances post-stroke angiogenesis and neurogenesis. This work provides a therapeutic perspective for miR-126 as a new approach to treating cerebral ischemia.
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Affiliation(s)
- Vahid Ebrahimi
- Department of Anatomical Sciences, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | | | - Abbas Mohammadipour
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. .,Applied Biomedical Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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11
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Cho SB, Kim IK, Kang HS, Lee SH, Yeo CD. S100A8/A9-RAGE pathway and chronic airway inflammation in smoke-induced lung carcinogenesis. Mol Cell Toxicol 2023. [DOI: 10.1007/s13273-023-00339-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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12
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TSLP and HMGB1: Inflammatory Targets and Potential Biomarkers for Precision Medicine in Asthma and COPD. Biomedicines 2023; 11:biomedicines11020437. [PMID: 36830972 PMCID: PMC9953666 DOI: 10.3390/biomedicines11020437] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The airway epithelium, through pattern recognition receptors expressed transmembrane or intracellularly, acts as a first line of defense for the lungs against many environmental triggers. It is involved in the release of alarmin cytokines, which are important mediators of inflammation, with receptors widely expressed in structural cells as well as innate and adaptive immune cells. Knowledge of the role of epithelial cells in orchestrating the immune response and mediating the clearance of invading pathogens and dead/damaged cells to facilitate resolution of inflammation is necessary to understand how, in many chronic lung diseases, there is a persistent inflammatory response that becomes the basis of underlying pathogenesis. This review will focus on the role of pulmonary epithelial cells and of airway epithelial cell alarmins, in particular thymic stromal lymphopoietin (TSLP) and high mobility group box 1 (HMGB1), as key mediators in driving the inflammation of chronic lung diseases, such as asthma and chronic obstructive pulmonary disease (COPD), evaluating the similarities and differences. Moreover, emerging concepts regarding the therapeutic role of molecules that act on airway epithelial cell alarmins will be explored for a precision medicine approach in the context of pulmonary diseases, thus allowing the use of these molecules as possible predictive biomarkers of clinical and biological response.
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13
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Xu SW, Zhang YJ, Liu WM, Zhang XF, Wang Y, Xiang SY, Su JC, Liu ZB. Cigarette smoke extract-induced inflammatory response via inhibition of the TFEB-mediated autophagy in NR8383 cells. Exp Lung Res 2023:1-10. [PMID: 36636918 DOI: 10.1080/01902148.2022.2164674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Objective: Chronic pulmonary inflammation caused by long-term smoking is the core pathology of COPD. Alveolar macrophages (AMs) are involved in the pulmonary inflammation of COPD. The accumulation of damaged materials caused by impaired autophagy triggers inflammatory response in macrophages. As a key transcription regulator, transcription factor EB (TFEB) activates the transcription of target genes related autophagy and lysosome by binding to promoters, whereas it is unclarified for the relationship between inflammatory response induced by cigarette smoke extract (CSE) and TFEB-mediated autophagy. Thus, we investigated the role of TFEB-mediated autophagy in inflammatory response induced by CSE in NR8383 cells, and to explore its potential mechanism. Methods: Based on cell viability and autophagy, cells treated with 20% concentration of CSE for 24 h were selected for further studies. Cells were divided into control group, chloroquine (CQ, the autophagy inhibitor) group, CSE group, CSE + rapamycin (the autophagy inducer) group and CSE + fisetin (the TFEB inducer) group. The levels of tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and IL-6 in supernatant were detected by ELISA kits. The protein expressions were tested by western blot. The intensity of fluorescence of Lysosome-associated membrane protein 1 (LAMP1) and TFEB was detected by immunofluorescence. Lyso-Tracker Red staining was applied to detect the lysosome environment. Results: CSE inhibited the cell viability, increased the contents of TNF-α, IL-1β, IL-6, the ratio of LC3II/I, and the level of P62 protein. Besides, CSE decreased the fluorescence intensity of LAMP1 protein and Lyso-Tracker Red staining, as well as the ratio of nucleus/cytosol of TFEB protein. Activating autophagy with rapamycin alleviated CSE-induced inflammatory response. The activation of TFEB via fisetin alleviated CSE-induced autophagy impairment and lysosomal dysfunction, thus alleviated inflammatory response in NR8383 cells. Conclusion: CSE-induced inflammatory response in NR8383 cells, which may be related to the inhibition of TFEB-mediated autophagy.
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Affiliation(s)
- Shu-Wen Xu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yu-Jie Zhang
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Wen-Mei Liu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Xin-Fang Zhang
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yuan Wang
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Shui-Ying Xiang
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Jing-Chao Su
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Zi-Bing Liu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China.,Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
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14
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Ding M, Yu Y, Zhu Z, Tian H, Guo Y, Zan R, Tian Y, Jiang R, Li K, Sun G, Han R, Li D, Kang X, Yan F. Regulation of the MyD88 gene in chicken spleen inflammation induced by stress. J Anim Sci 2023; 101:skad060. [PMID: 36805927 PMCID: PMC10022378 DOI: 10.1093/jas/skad060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
In order to investigate the regulatory role of the myeloid differentiation factor 88 (MyD88) gene in the stress inflammatory response to chicken spleen, the chicken stress model and macrophage (HD11) inflammation model were constructed in this study. Enzyme-linked immunosorbent assay and quantitative real-time PCR were used to investigate the effects of MyD88 on immune and inflammatory indicators. The results demonstrated that the levels of IgG, CD3+ and CD4+ in the serum of chickens in the beak trimming stress and heat stress groups decreased significantly compared to the control group without stress (P < 0.05), and the inflammation-related indices IL-1β, TNF-α, IL-6 and NF-κB increased significantly (P < 0.05). Stress up-regulated the expression levels of MyD88, IL-1β, NF-κB and TLR4 in the spleen, stimulated the release of inflammatory factors. Overexpression of MyD88 significantly up-regulated the expression levels of the inflammatory factors IL-1β, TNF-α, IL-8, NF-κB and TLR4 in HD11 cells (P < 0.05). Co-treatment with lipopolysaccharide (LPS) further promoted the expression levels of the inflammatory cytokines in HD11 cells. Interference with the expression of MyD88 significantly reduced the expression level of inflammatory factors in HD11 cells (P < 0.05) and had an antagonistic effect with LPS to alleviate the inflammatory reaction. In conclusion, the MyD88 gene has a pro-inflammatory effect and is highly expressed in the beak trimming and heat stress models in chicks, regulating the inflammatory response in poultry. It was involved in regulating the expression of immune-related genes in HD11 cells and had a synergistic effect with LPS.
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Affiliation(s)
- Mengxia Ding
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Yange Yu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Zhaoyan Zhu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Huihui Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Yujie Guo
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Ruilong Zan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yadong Tian
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Ruirui Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Kui Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Guirong Sun
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Ruili Han
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Donghua Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Xiangtao Kang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
| | - Fengbin Yan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou 450046, China
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15
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Lin L, Li J, Song Q, Cheng W, Chen P. The role of HMGB1/RAGE/TLR4 signaling pathways in cigarette smoke-induced inflammation in chronic obstructive pulmonary disease. Immun Inflamm Dis 2022; 10:e711. [PMID: 36301039 PMCID: PMC9552978 DOI: 10.1002/iid3.711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/10/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common chronic respiratory disease with irreversible and continuous progression. It has become the fifth most burdensome disease and the third most deadly disease globally. Therefore, the prevention and treatment of COPD are urgent, and it is also important to clarify the pathogenesis of it. Smoking is the main and most common risk factor for COPD. Cigarette smoke (CS) can cause lung inflammation and other pathological mechanisms in the airways and lung tissue. Airway inflammation is one of the important mechanisms leading to the pathogenesis of COPD. Recent studies have shown that high mobility group box 1 (HMGB1) is involved in the occurrence and development of respiratory diseases, including COPD. HMGB1 is a typical damage-associated molecular pattern (DAMP) protein, which mainly exerts its activity by binding to the receptor for advanced glycation end products (RAGE) and toll-like receptor 4 (TLR4) and further participate in the process of airway inflammation. Studies have shown that the abnormal expression of HMGB1, RAGE, and TLR4 are related to inflammation in COPD. Herein, we discuss the roles of HMGB1, RAGE, and TLR4 in CS/cigarette smoke extract-induced inflammation in COPD, providing a new target for the diagnosis, treatment and prevention of COPD.
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Affiliation(s)
- Ling Lin
- Department of Respiratory and Critical Care Medicine, The Second Xiangya HospitalCentral South UniversityChangshaHunanChina,Diagnosis and Treatment Center of Respiratory DiseaseCentral South UniversityChangshaHunanChina
| | - Jing Li
- Department of Respiratory and Critical Care Medicine, The Second Xiangya HospitalCentral South UniversityChangshaHunanChina,Research Unit of Respiratory DiseaseCentral South UniversityChangshaHunanChina,Diagnosis and Treatment Center of Respiratory DiseaseCentral South UniversityChangshaHunanChina
| | - Qing Song
- Department of Respiratory and Critical Care Medicine, The Second Xiangya HospitalCentral South UniversityChangshaHunanChina,Research Unit of Respiratory DiseaseCentral South UniversityChangshaHunanChina,Diagnosis and Treatment Center of Respiratory DiseaseCentral South UniversityChangshaHunanChina
| | - Wei Cheng
- Department of Respiratory and Critical Care Medicine, The Second Xiangya HospitalCentral South UniversityChangshaHunanChina,Research Unit of Respiratory DiseaseCentral South UniversityChangshaHunanChina,Diagnosis and Treatment Center of Respiratory DiseaseCentral South UniversityChangshaHunanChina
| | - Ping Chen
- Department of Respiratory and Critical Care Medicine, The Second Xiangya HospitalCentral South UniversityChangshaHunanChina,Research Unit of Respiratory DiseaseCentral South UniversityChangshaHunanChina,Diagnosis and Treatment Center of Respiratory DiseaseCentral South UniversityChangshaHunanChina
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16
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Zeng M, Zhang R, Yang Q, Guo L, Zhang X, Yu B, Gan J, Yang Z, Li H, Wang Y, Jiang X, Lu B. Pharmacological therapy to cerebral ischemia-reperfusion injury: Focus on saponins. Biomed Pharmacother 2022; 155:113696. [PMID: 36116247 DOI: 10.1016/j.biopha.2022.113696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/30/2022] [Accepted: 09/13/2022] [Indexed: 11/15/2022] Open
Abstract
Secondary insult from cerebral ischemia-reperfusion injury (CIRI) is a major risk factor for poor prognosis of cerebral ischemia. Saponins are steroid or triterpenoid glycosides with various pharmacological activities that are effective in treating CIRI. By browsing the literature from 2001 to 2021, 55 references involving 24 kinds of saponins were included. Saponins were shown to relieve CIRI by inhibiting oxidation stress, neuroinflammation, and apoptosis, restoring BBB integrity, and promoting neurogenesis and angiogenesis. This review summarizes and classifies several common saponins and their mechanisms in relieving CIRI. Information provided in this review will benefit researchers to design, research and develop new medicines to treat CIRI-related conditions with saponins.
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Affiliation(s)
- Miao Zeng
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ruifeng Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qiuyue Yang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Lin Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xiaolu Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Bin Yu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jiali Gan
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhen Yang
- School of Traditional Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Huhu Li
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yu Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Xijuan Jiang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Bin Lu
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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17
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Wang J, Chen X, Sun L, Chen X, Li H, Xiong B, Wang H. [Long noncoding RNA ZEB1-AS1 aggravates cerebral ischemia/reperfusion injury in rats through the HMGB1/TLR-4 signaling axis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:1134-1142. [PMID: 36073211 DOI: 10.12122/j.issn.1673-4254.2022.08.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the role of long non-coding RNA ZEB1-AS1 in cerebral ischemia/reperfusion injury (CI/RI). METHODS We detected the temporal changes of ZEB1-AS1 and HMGB1 expression using qPCR and Western blotting in SD rats following CI/RI induced by middle cerebral artery occlusion (MCAO). The rat models of CI/RI were subjected to injections of vectors for ZEB1-AS1 overexpression or knockdown into the lateral ventricle, and the changes in cognitive function, brain water content, blood-brain barrier integrity, and IL-1β and TNF-α levels in the cerebrospinal fluid (CSF) and serum were observed. Neuronal loss and cell apoptosis in the cortex of the rat models were detected by FJC and TUNEL methods, and HMGB1 and TLR-4 expressions were analyzed with Western blotting. We also examined the effects of ZEB1-AS1 knockdown on apoptosis and expressions of HMGB1 and TLR-4 in SH-SY5Y cells with oxygen-glucose deprivation/reoxygenation (OGD/R). RESULTS In CI/RI rats, the expressions of ZEB1-AS1 and HMGB1 in the brain tissue increased progressively with the extension of reperfusion time, reaching the peak levels at 24 h followed by a gradual decline. ZEB1-AS1 overexpression significantly aggravated icognitive impairment and increased brain water content, albumin content in the CSF, and IL-1β and TNF-α levels in the CSF and serum in CI/RI rats (P < 0.05), while ZEB1-AS1 knockdown produced the opposite effects (P < 0.05 or 0.01). ZEB1-AS1 overexpression obviously increased the number of FJC-positive neurons in the cortex and enhanced the expressions of HMGB1 and TLR-4 in the rat models (P < 0.01); ZEB1-AS1 knockdown significantly reduced the number of FJC-positive neurons and lowered HMGB1 and TLR-4 expressions (P < 0.01). In SH-SY5Y cells with OGD/R, ZEB1-AS1 knockdown significantly suppressed cell apoptosis and lowered the expressions of HMGB1 and TLR-4 (P < 0.01). CONCLUSION ZEB1-AS1 overexpression aggravates CI/RI in rats through the HMGB1/TLR-4 signaling axis.
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Affiliation(s)
- J Wang
- College of Basic Medical Sciences, Wannan Medical College, Wuhu 241002, China
| | - X Chen
- College of Basic Medical Sciences, Wannan Medical College, Wuhu 241002, China
| | - L Sun
- College of Basic Medical Sciences, Wannan Medical College, Wuhu 241002, China
| | - X Chen
- Graduate School, Wannan Medical College, Wuhu 241002, China
| | - H Li
- Graduate School, Wannan Medical College, Wuhu 241002, China
| | - B Xiong
- College of Pharmacy, Wannan Medical College, Wuhu 241002, China
| | - H Wang
- College of Basic Medical Sciences, Wannan Medical College, Wuhu 241002, China
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18
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Ren W, Zhao F, Han Y, Liu Z, Zhai J, Jia K. Muscone improves hypoxia/reoxygenation (H/R)-induced neuronal injury by blocking HMGB1/TLR4/NF-κB pathway via modulating microRNA-142. PeerJ 2022; 10:e13523. [PMID: 35860039 PMCID: PMC9290999 DOI: 10.7717/peerj.13523] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 05/10/2022] [Indexed: 01/25/2023] Open
Abstract
Previous reports have indicated that natural muscone has neuroprotective effects against cerebral hypoxia injury; however, little is known in regards to its pharmacological mechanism. In this study, we tried to evaluate the neuroprotective effects and mechanisms of muscone against cerebral hypoxia injury using an in vitro model. The cerebral hypoxia injury cell model was produced by hypoxia/reoxygenation (H/R). The cell viability and apoptosis were measured using the cell counting Kit-8 and the Annexin V-FITC/PI Apoptosis Detection kit, respectively. To screen microRNAs regulated by muscone, we analyzed the gene expression datasets of GSE84216 retrieved from gene expression omnibus (GEO). Here, it was demonstrated that muscone treatment significantly alleviated the cell apoptosis, oxidative stress and inflammation in H/R-exposed neurons. Subsequently, through analyzing GSE84216 from the GEO database, miR-142-5p was markedly upregulated by treatment of muscone in this cell model of cerebral hypoxia injury. Further experiments revealed that downregulation of miR-142-5p eliminated the neuroprotective effects of muscone against H/R induced neuronal injury. Additionally, high mobility group box 1 (HMGB1), an important inflammatory factor, was identified as a direct target of miR-142-5p in neurons. Meanwhile, we further demonstrated that muscone could reduce the expression of HMGB1 by upregulating miR-142-5p expression, which subsequently resulted in the inactivation of TLR4/NF-κB pathway, finally leading to the improvement of cell injury in H/R-exposed neurons. Overall, we demonstrate for the first time that muscone treatment alleviates cerebral hypoxia injury in in vitro experiments through blocking activation of the TLR4/NF-κB signaling pathway by targeting HMGB1, suggesting that muscone may serve as a potential therapeutic drug for treating cerebral hypoxia injury.
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GLP-1 mediates the neuroprotective action of crocin against cigarette smoking-induced cognitive disorders via suppressing HMGB1-RAGE/TLR4-NF-κB pathway. Int Immunopharmacol 2022; 110:108995. [PMID: 35785730 DOI: 10.1016/j.intimp.2022.108995] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/05/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022]
Abstract
Cigarette smoking (CS) has been associated with an increased risk of cognitive disorders. Although HMGB1 has been connected to various neurological ailments, its role in the pathogenesis of CS-induced cognitive impairments is undefined. With the ability of GLP-1 to lower HMGB1 expression and improve learning and memory performance, we sought to assess the potential neuroprotective efficacy of Crocin (Cro) as a GLP-1 stimulator against CS-induced cognitive impairments, with a focus on the HMGB1-RAGE/TLR4-NF-κB pathway. Fifty adult rats were specified into: Control; Cro (30 mg/kg); CS; Cro then CS and CS concurrently with Cro. Cognitive functions were assessed by MWM, EMP, and passive avoidance tests. Hippocampal levels of GLP-1, HMGB1, pro-inflammatory cytokines, and apoptotic markers were detected using ELISA, western blotting, and immunohistochemistry. Hippocampal oxidant/antioxidant status was evaluated via colorimetric determination of MDA and TAC. The results revealed that Cro either before or along with CS produced a significant improvement in learning and memory. Cro markedly hindered HMGB1-RAGE/TLR4-NF-κB pathway through enhancing GLP-1 level and expression, which in turn suppressed TNF-α and IL-1β levels and alleviated CS-induced neuroinflammation. Cro significantly counteracted CS-triggered oxidative stress as evidenced by reducing MDA level and raising TAC. Histopathologically, Cro lessened neuronal apoptosis by lowering Bax/Bcl-2 ratio at hippocampal CA2 region. These findings confirmed a GLP-1-dependent neuroprotective action of Cro against CS-induced cognitive disorders via suppressing HMGB1-RAGE/TLR4-NF-κB axis.
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20
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Padron JG, Norman Ing ND, Ng PK, Kendal-Wright CE. Stretch Causes Cell Stress and the Downregulation of Nrf2 in Primary Amnion Cells. Biomolecules 2022; 12:766. [PMID: 35740891 PMCID: PMC9220942 DOI: 10.3390/biom12060766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/25/2022] [Accepted: 05/29/2022] [Indexed: 02/04/2023] Open
Abstract
Nuclear-factor-E2-related factor 2 (Nrf2) is a key transcription factor for the regulation of cellular responses to cellular stress and inflammation, and its expression is significantly lower after spontaneous term labor in human fetal membranes. Pathological induction of inflammation can lead to adverse pregnancy outcomes such as pre-eclampsia, preterm labor, and fetal death. As stretch forces are known to act upon the fetal membranes in utero, we aimed to ascertain the effect of stretch on Nrf2 to increase our understanding of the role of this stimulus on cells of the amnion at term. Our results indicated a significant reduction in Nrf2 expression in stretched isolated human amnion epithelial cells (hAECs) that could be rescued with sulforaphane treatment. Downregulation of Nrf2 as a result of stretch was accompanied with activation of proinflammatory nuclear factor-kB (NF-kB) and increases in LDH activity, ROS, and HMGB1. This work supports stretch as a key modulator of cellular stress and inflammation in the fetal membranes. Our results showed that the modulation of the antioxidant response pathway in the fetal membranes through Nrf2 activation may be a viable approach to improve outcomes in pregnancy.
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Affiliation(s)
- Justin Gary Padron
- Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96822, USA;
- Wayne State School of Medicine, Detroit, MI 48201, USA
| | - Nainoa D. Norman Ing
- Natural Science and Mathematics, Chaminade University of Honolulu, Honolulu, HI 96816, USA; (N.D.N.I.); (P.K.N.)
| | - Po’okela K. Ng
- Natural Science and Mathematics, Chaminade University of Honolulu, Honolulu, HI 96816, USA; (N.D.N.I.); (P.K.N.)
| | - Claire E. Kendal-Wright
- Anatomy, Biochemistry and Physiology, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96822, USA;
- Natural Science and Mathematics, Chaminade University of Honolulu, Honolulu, HI 96816, USA; (N.D.N.I.); (P.K.N.)
- Obstetrics, Gynecology and Women’s Health, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96826, USA
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Clinical significance of serum HMGB1 in COPD and correlation with severity of airflow restriction and immune function. REV ROMANA MED LAB 2022. [DOI: 10.2478/rrlm-2022-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Background: To explore the serum HMGB1 levels in patients with smoking-induced chronic obstructive pulmonary disease (COPD) and the correlations with airflow restriction and immune function.
Methods: A total of 136 COPD patients were divided into mild, moderate and severe + extremely severe groups. Thirty-five healthy subjects were selected as control group. Serum HMGB1 levels were measured by ELISA, and the correlations with pulmonary and immune function indices were analyzed. Receiver operating characteristic (ROC) curve was plotted.
Results: PaO2, eosinophil count, FEV1/FVC, FEV1% pred, and IgA, IgM, IgG levels of COPD patients were lower than those of control group, and decreased with airflow restriction aggravation. PaCO2, leukocyte count, neutrophil percentage, modified British Medical Research Council (mMRC) scale and COPD Assessment Test (CAT) scores, D-Dimer (D-D), PCT, CRP and HMGB1 levels, myeloid dendritic cell (mDC) and plasmacytoid dendritic cell (pDC) counts, and mDCs/pDCs of COPD patients exceeded those of control group, and increased with airflow restriction aggravation (P<0.05). HMGB1 levels of COPD patients were negatively correlated with FEV1/FVC, FEV1% pred, IgA, IgM and IgG levels and positively correlated with mDC count, pDC count and mDCs/pDCs (P<0.0001). The area under ROC curve was 0.883, the optimal cutoff value was 3.63 ng/mL, and sensitivity and specificity were 86.7% and 85.9%, respectively.
Conclusions: Serum HMGB1 level in patients with smoking-induced COPD rises with airflow restriction aggravation and has significant correlations with the decline of pulmonary and immune functions, with high predictive value for COPD. HMGB1 is a potential biomarker for evaluating COPD progression.
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22
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High Mobility Group Box 1: Biological Functions and Relevance in Oxidative Stress Related Chronic Diseases. Cells 2022; 11:cells11050849. [PMID: 35269471 PMCID: PMC8909428 DOI: 10.3390/cells11050849] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/03/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Abstract
In the early 1970s, a group of non-histone nuclear proteins with high electrophoretic mobility was discovered and named high-mobility group (HMG) proteins. High-mobility group box 1 (HMGB1) is the most studied HMG protein that detects and coordinates cellular stress response. The biological function of HMGB1 depends on its subcellular localization and expression. It plays a critical role in the nucleus and cytoplasm as DNA chaperone, chromosome gatekeeper, autophagy maintainer, and protector from apoptotic cell death. HMGB1 also functions as an extracellular alarmin acting as a damage-associated molecular pattern molecule (DAMP). Recent findings describe HMGB1 as a sophisticated signal of danger, with a pleiotropic function, which is useful as a clinical biomarker for several disorders. HMGB1 has emerged as a mediator in acute and chronic inflammation. Furthermore, HMGB1 targeting can induce beneficial effects on oxidative stress related diseases. This review focus on HMGB1 redox status, localization, mechanisms of release, binding with receptors, and its activities in different oxidative stress-related chronic diseases. Since a growing number of reports show the key role of HMGB1 in socially relevant pathological conditions, to our knowledge, for the first time, here we analyze the scientific literature, evaluating the number of publications focusing on HMGB1 in humans and animal models, per year, from 2006 to 2021 and the number of records published, yearly, per disease and category (studies on humans and animal models).
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Wu W, Gao J, Chen D, Chen G, Feng Y, Chang C, Chen S, Yi L, Zhen G. Epithelial microRNA-30a-3p targets RUNX2/HMGB1 axis to suppress airway eosinophilic inflammation in asthma. Respir Res 2022; 23:17. [PMID: 35093061 PMCID: PMC8800331 DOI: 10.1186/s12931-022-01933-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 01/17/2022] [Indexed: 11/17/2022] Open
Abstract
Background Type 2-high asthma is a prominent endotype of asthma which is characterized by airway eosinophilic inflammation. Airway epithelial cells play a critical role in the pathogenesis of asthma. Our previous miRNA profiling data showed that miR-30a-3p was downregulated in bronchial epithelial cells from asthma patients. We hypothesize that epithelial miR-30a-3p plays a role in asthma airway inflammation. Methods We measured miR‐30a-3p expression in bronchial brushings of asthma patients (n = 51) and healthy controls (n = 16), and analyzed the correlations between miR‐30a-3p expression and airway eosinophilia. We examined whether Runt-related transcription factor 2 (RUNX2) was a target of miR‐30a-3p and whether RUNX2 bound to the promoter of high mobility group box 1 (HMGB1) by using luciferase reporter assay and chromatin immunoprecipitation (ChIP)-PCR. The role of miR‐30a-3p was also investigated in a murine model of allergic airway inflammation. Results We found that miR-30a-3p expression were significantly decreased in bronchial brushings of asthma patients compared to control subjects. Epithelial miR-30a-3p expression was negatively correlated with parameters reflecting airway eosinophilia including eosinophils in induced sputum and bronchial biopsies, and fraction of exhaled nitric oxide in asthma patients. We verified that RUNX2 is a target of miR-30a-3p. Furthermore, RUNX2 bound to the promoter of HMGB1 and upregulated HMGB1 expression. RUNX2 and HMGB1 expression was both enhanced in airway epithelium and was correlated with each other in asthma patients. Inhibition of miR-30a-3p enhanced RUNX2 and HMGB1 expression, and RUNX2 overexpression upregulated HMGB1 in BEAS-2B cells. Intriguingly, airway overexpression of mmu-miR-30a-3p suppressed Runx2 and Hmgb1 expression, and alleviated airway eosinophilia in a mouse model of allergic airway inflammation. Conclusions Epithelial miR-30a-3p could possibly target RUNX2/HMGB1 axis to suppress airway eosinophilia in asthma. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-01933-x.
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Magnesium sulfate ameliorates sepsis-induced diaphragm dysfunction in rats via inhibiting HMGB1/TLR4/NF-κB pathway. Neuroreport 2021; 31:902-908. [PMID: 32558672 PMCID: PMC7368847 DOI: 10.1097/wnr.0000000000001478] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Diaphragm dysfunction could be induced by sepsis with subsequent ventilatory pump failure that is associated with local infiltration of inflammatory factors in the diaphragm. It has been shown that the administration of anticonvulsant agent, magnesium sulfate (MgSO4) could decrease systematic inflammatory response. We recently reported that MgSO4 could inhibit macrophages high mobility group box 1 (HMGB1) secretion that confirms its anti-inflammatory properties. Toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) signal pathway appears to be involved in the pathology of septic experimental animal’s inflammatory response and involve in the pathogenic mechanisms of sepsis-induced diaphragm dysfunction. Thus, in this study, we are aiming to explore whether MgSO4 could ameliorate sepsis-induced diaphragm dysfunction via TLR4/NF-κB pathway in a rodent model with controlled mechanical ventilation (CMV) and subsequent septic challenge.
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Cigarette Smoke Condensate Exposure Induces Receptor for Advanced Glycation End-Products (RAGE)-Dependent Sterile Inflammation in Amniotic Epithelial Cells. Int J Mol Sci 2021; 22:ijms22158345. [PMID: 34361111 PMCID: PMC8348034 DOI: 10.3390/ijms22158345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/30/2021] [Accepted: 07/31/2021] [Indexed: 12/26/2022] Open
Abstract
Maternal smoking is a risk factor of preterm prelabor rupture of the fetal membranes (pPROM), which is responsible for 30% of preterm births worldwide. Cigarettes induce oxidative stress and inflammation, mechanisms both implicated in fetal membranes (FM) weakening. We hypothesized that the receptor for advanced glycation end-products (RAGE) and its ligands can result in cigarette-dependent inflammation. FM explants and amniotic epithelial cells (AECs) were treated with cigarette smoke condensate (CSC), combined or not with RAGE antagonist peptide (RAP), an inhibitor of RAGE. Cell suffering was evaluated by measuring lactate dehydrogenase (LDH) medium-release. Extracellular HMGB1 (a RAGE ligand) release by amnion and choriodecidua explants were checked by western blot. NF-κB pathway induction was determined by a luciferase gene reporter assay, and inflammation was evaluated by cytokine RT-qPCR and protein quantification. Gelatinase activity was assessed using a specific assay. CSC induced cell suffering and HMGB1 secretion only in the amnion, which is directly associated with a RAGE-dependent response. CSC also affected AECs by inducing inflammation (cytokine release and NFκB activation) and gelatinase activity through RAGE engagement, which was linked to an increase in extracellular matrix degradation. This RAGE dependent CSC-induced inflammation associated with an increase of gelatinase activity could explain a pathological FM weakening directly linked to pPROM.
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Handayani W, Suharjono, Yogiarto M. Analysis of HMGB-1 level before and after providing atorvastatin standard therapy in coronary artery disease patients with type-2 diabetes mellitus compared to without type-2 diabetes mellitus. J Basic Clin Physiol Pharmacol 2021; 32:439-446. [PMID: 34214372 DOI: 10.1515/jbcpp-2020-0442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 04/08/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Coronary artery disease (CAD) is one of the main causes of death from cardiovascular disease, because heart attacks result in atherosclerosis which causes narrowing of the arteries. Atorvastatin has a pleiotropic effect as anti-inflammatory through one of the target levels of High Mobility Group Box-1 (HMGB-1). This prospective observational study aimed to analyze the effect of atorvastatin on serum HMGB-1 levels in CAD. METHODS Samples were collected from prospective observation pre-post study in May-July 2018 with consecutive sampling method. Serum HMGB-1 levels were measured in patients with CAD who were given atorvastatin for CAD with type-2 diabetes mellitus compared without type-2 diabetes mellitus in a patient ward. Blood was collected on admission day and before the patient left the hospital. After centrifugation, serum samples were stored at -80 °C before measurement. We used an ELISA kit (IBL International) to determine HMGB-1 concentrations. This research protocol has been approved by the Ethical Committee of Dr. Soetomo General Hospital, Surabaya. RESULTS We enrolled 38 patients and divided them into two groups which 19 patients on CAD with type-2 diabetes mellitus and 19 patients without diabetes mellitus. Serum HMGB-1 levels in CAD with type-2 diabetes mellitus were increased significantly (p = 0.049) and not significantly decreased in CAD without type-2 diabetes mellitus (p = 0.480). The HMGB-1 level was not significantly different between the two groups (p = 0.210). CONCLUSIONS HMGB-1 levels after providing atorvastatin in CAD with type-2 diabetes mellitus increased significantly, meanwhile, in CAD without type-2 diabetes mellitus did not decrease significantly. The HMGB-1 level was not significantly different between the two groups. Longer time and more point for the collected sample needed for further research.
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Affiliation(s)
| | - Suharjono
- Department of Clinical Pharmacy, Faculty of Pharmacy,Universitas Airlangga, Surabaya, East Java, Indonesia
| | - Mohammad Yogiarto
- Cardiovascular, Department of Cardiology, Faculty of Medicine, Universitas Airlangga, Surabaya, East Java, Indonesia
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Allam VSRR, Faiz A, Lam M, Rathnayake SNH, Ditz B, Pouwels SD, Brandsma C, Timens W, Hiemstra PS, Tew GW, Neighbors M, Grimbaldeston M, van den Berge M, Donnelly S, Phipps S, Bourke JE, Sukkar MB. RAGE and TLR4 differentially regulate airway hyperresponsiveness: Implications for COPD. Allergy 2021; 76:1123-1135. [PMID: 32799375 DOI: 10.1111/all.14563] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 07/08/2020] [Accepted: 07/14/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The receptor for advanced glycation end products (RAGE) and Toll-like receptor 4 (TLR4) is implicated in COPD. Although these receptors share common ligands and signalling pathways, it is not known whether they act in concert to drive pathological processes in COPD. We examined the impact of RAGE and/or TLR4 gene deficiency in a mouse model of COPD and also determined whether expression of these receptors correlates with airway neutrophilia and airway hyperresponsiveness (AHR) in COPD patients. METHODS We measured airway inflammation and AHR in wild-type, RAGE-/- , TLR4-/- and TLR4-/- RAGE-/- mice following acute exposure to cigarette smoke (CS). We also examined the impact of smoking status on AGER (encodes RAGE) and TLR4 bronchial gene expression in patients with and without COPD. Finally, we determined whether expression of these receptors correlates with airway neutrophilia and AHR in COPD patients. RESULTS RAGE-/- mice were protected against CS-induced neutrophilia and AHR. In contrast, TLR4-/- mice were not protected against CS-induced neutrophilia and had more severe CS-induced AHR. TLR4-/- RAGE-/- mice were not protected against CS-induced neutrophilia but were partially protected against CS-induced mediator release and AHR. Current smoking was associated with significantly lower AGER and TLR4 expression irrespective of COPD status, possibly reflecting negative feedback regulation. However, consistent with preclinical findings, AGER expression correlated with higher sputum neutrophil counts and more severe AHR in COPD patients. TLR4 expression did not correlate with neutrophilic inflammation or AHR. CONCLUSIONS Inhibition of RAGE but not TLR4 signalling may protect against airway neutrophilia and AHR in COPD.
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Affiliation(s)
| | - Alen Faiz
- School of Life Sciences Faculty of Science The University of Technology Sydney Ultimo NSW Australia
- Department of Pulmonary Diseases University of Groningen University Medical Center Groningen Groningen The Netherlands
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Maggie Lam
- Biomedicine Discovery Institute and Department of Pharmacology School of Biomedical Sciences Monash University Melbourne Vic. Australia
| | - Senani N. H. Rathnayake
- School of Life Sciences Faculty of Science The University of Technology Sydney Ultimo NSW Australia
| | - Benedikt Ditz
- Department of Pulmonary Diseases University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Simon D. Pouwels
- Department of Pulmonary Diseases University of Groningen University Medical Center Groningen Groningen The Netherlands
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Corry‐Anke Brandsma
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands
- Groningen Research Institute for Asthma and COPD University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Wim Timens
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen The Netherlands
- Groningen Research Institute for Asthma and COPD University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Pieter S. Hiemstra
- Department of Pulmonology Leiden University Medical Center Leiden The Netherlands
| | - Gaik W. Tew
- OMNI‐Biomarker Development, Genentech Inc South San Francisco CA USA
| | | | | | - Maarten van den Berge
- Department of Pulmonary Diseases University of Groningen University Medical Center Groningen Groningen The Netherlands
| | - Sheila Donnelly
- School of Life Sciences Faculty of Science The University of Technology Sydney Ultimo NSW Australia
| | - Simon Phipps
- QIMR Berghofer Medical Research Institute Herston Qld Australia
| | - Jane E. Bourke
- Biomedicine Discovery Institute and Department of Pharmacology School of Biomedical Sciences Monash University Melbourne Vic. Australia
| | - Maria B. Sukkar
- Graduate School of Health Faculty of Health The University of Technology Sydney Ultimo NSW Australia
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Liu X, Zhao P, Ge W. Knockdown of circular RNA circZNF652 remits LPS-induced inflammatory damage by regulating miR-181a. Biofactors 2020; 46:1031-1040. [PMID: 31889339 DOI: 10.1002/biof.1606] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Infantile pneumonia (IP) is a usual disease in infants and young children. The function and underlying mechanism of circZNF652 on lipopolysaccharide (LPS)-triggered inflammatory damage in WI-38 cells were detected in this article. METHODS WI-38 cells were induced by dosages of LPS to construct inflammatory injury model. WI-38 cell viability and apoptosis were detected by CCK-8 assay and flow cytometry, respectively. CircZNF652 and miR-181a levels were changed and detected by cell transfection and qRT-PCR. The levels of apoptosis and JNK/p38 and NF-κB pathways-related proteins, as well as the level of Cox-2 were detected by western blot. Finally, the concentrations of inflammatory factors were detected by ELISA. RESULTS LPS induced inflammatory injury showing as notably decreased the viability, while increased the numbers of apoptotic cells, as well as the levels of apoptosis and inflammatory factors in a dose dependent way. Besides, LPS inducement remarkably enhanced the expression of circZNF652. However, knockdown of circZNF652 remitted LPS-triggered inflammatory damage and restrained NF-κB and JNK/p38 pathways. Moreover, circZNF652 knockdown promoted miR-181a expression. Whereas, miR-181a inhibition markedly relieved circZNF652 knockdown-induced impacts. CONCLUSION Knockdown of circZNF652 remitted LPS-triggered WI-38 cells inflammatory damage through deactivation of NF-κB and JNK/p38pathways by up-regulating miR-181a.
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Affiliation(s)
- Xiuxia Liu
- Department of Pediatrics, Jining No.1 People's Hospital, Jining, Shandong, China
| | - Peifeng Zhao
- Department of Pediatrics, Jining No.1 People's Hospital, Jining, Shandong, China
| | - Wang Ge
- Department of Family Planning Technial Service, Jining Maternal and Child Health Family Planning Service Center, Jining, Shandong, China
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Wang D, Zhang S, Liu B, Wang B, He S, Zhang R. Anti-inflammatory effects of adiponectin in cigarette smoke-activated alveolar macrophage through the COX-2/PGE 2 and TLRs signaling pathway. Cytokine 2020; 133:155148. [PMID: 32505095 DOI: 10.1016/j.cyto.2020.155148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/04/2020] [Accepted: 05/25/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Airway macrophages represents a central site for the mechanisms involved in the complex interactions between environmental triggers and airway inflammation. Based on anti-inflammatory activity of adiponectin, we hypothesize that adiponectin inhibits the proinflammatory cytokines production and the activation of alveolar macrophages expose to cigarette smoke. MATERIALS AND METHODS To examine the effects of adiponectin on alveolar macrophages, we used the cigarette smoke-induced the alveolar inflammation model in C57BL/6 mice and the macrophages activation model in vitro, both in the presence or absence of adiponectin, to assess the accumulation of inflammatory cells and the concentration of inflammatory cytokines and chemokines in the bronchoalveolar lavage (BAL), and the proinflammatory cytokines production and M1/2 phenotype in alveolar macrophages. RESULTS Our results showed that adiponectin improves cigarette smoke-induced airway inflammation in vivo and decreases proinflammatory cytokine production and alveolar macrophages polarization in vitro. Moreover, our study further demonstrates that anti-inflammatory activity of adiponectin depends on the suppression of the proinflammatory cytokine production through TLR2/4 signaling and the inhibition of macrophage polarization vit COX-2/PGE2 signaling. CONCLUSIONS Our study suggests that the anti-inflammatory activity of adiponectin might contribute to its therapeutic potential in airway inflammation, such as COPD.
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Affiliation(s)
- Dan Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China
| | - Shuang Zhang
- Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China
| | - Bicui Liu
- Respiratory Department, The Bishan Hospital of Chongqing, Chongqing 402760, PR China
| | - Bin Wang
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, PR China
| | - Sirong He
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China; Department of Immunology, College of Basic Medicine, Chongqing Medical University, Chongqing 400016, PR China.
| | - Rui Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, PR China.
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The association between plasma HMGB1 and sRAGE and clinical outcome in intracerebral hemorrhage. J Neuroimmunol 2020; 345:577266. [DOI: 10.1016/j.jneuroim.2020.577266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 05/16/2020] [Accepted: 05/17/2020] [Indexed: 12/22/2022]
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31
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Kianian F, Kadkhodaee M, Sadeghipour HR, Karimian SM, Seifi B. An overview of high-mobility group box 1, a potent pro-inflammatory cytokine in asthma. J Basic Clin Physiol Pharmacol 2020; 31:jbcpp-2019-0363. [PMID: 32651983 DOI: 10.1515/jbcpp-2019-0363] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 04/15/2020] [Indexed: 02/07/2023]
Abstract
High-mobility group box 1 (HMGB1), also called amphoterin, HMG1 and p30, is a highly conserved protein between different species that has various functions in nucleus such as stabilization of nucleosome formation, facilitation of deoxyribonucleic acid (DNA) bending and increasing the DNA transcription, replication and repair. It has also been indicated that HMGB1 acts as a potent pro-inflammatory cytokine with increasing concentrations in acute and chronic inflammatory diseases. Asthma is a common chronic respiratory disease associated with high morbidity and mortality rates. One central characteristic in its pathogenesis is airway inflammation. Considering the inflammatory role of HMGB1 and importance of inflammation in asthma pathogenesis, a better understanding of this protein is vital. This review describes the structure, cell surface receptors, signaling pathways and intracellular and extracellular functions of HMGB1, but also focuses on its inflammatory role in asthma. Moreover, this manuscript reviews experimental and clinical studies that investigated the pathologic role of HMGB1.
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Affiliation(s)
- Farzaneh Kianian
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehri Kadkhodaee
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Sadeghipour
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Morteza Karimian
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Behjat Seifi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Kang L, Guo N, Liu X, Wang X, Guo W, Xie SM, Liu C, Lv P, Xing L, Zhang X, Shen H. High mobility group box-1 protects against Aflatoxin G 1-induced pulmonary epithelial cell damage in the lung inflammatory environment. Toxicol Lett 2020; 331:92-101. [PMID: 32446815 DOI: 10.1016/j.toxlet.2020.05.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 12/20/2022]
Abstract
Aflatoxin G1 (AFG1) is a member of the carcinogenic aflatoxin family. Our previous studies indicated that oral administration of AFG1 caused tumor necrosis factor (TNF)-α-dependent inflammation that enhanced oxidative DNA damage in alveolar epithelial cells, which may be related to AFG1-induced lung carcinogenesis. High mobility group box-1 (HMGB1) is a nuclear DNA-binding protein; the intracellular and extracellular roles of HMGB1 have been shown to contribute to DNA repair and sterile inflammation. The role of HMGB1 in DNA damage in an aflatoxin-induced lung inflammatory environment was investigated in this study. Upregulation of HMGB1, TLR2, and RAGE was observed in AFG1-induced lung inflamed tissues and adenocarcinoma. Blocking AFG1-induced inflammation by neutralization of TNF-α inhibited the upregulation of HMGB1 in mouse lung tissues, suggesting that AFG1-induced TNF-α-dependent inflammation regulated HMGB1 expression. In the in vitro human pulmonary epithelial cell line model, Beas-2b, AFG1 directly enhanced the cytosolic translocation of HMGB1 and its extracellular secretion. The addition of extracellular soluble HMGB1 protected AFG1-induced DNA damage through the TLR2/NF-κB pathway in Beas-2b cells. In addition, blockade of endogenous HMGB1 by siRNA significantly enhanced AFG1-induced damage. Thus, our findings showed that both extracellularly-released and nuclear and cytosolic HMGB1 could protect the cell from AFG1-induced cell damage in a TNF-α-dependent lung inflammatory environment.
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Affiliation(s)
- Lifei Kang
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China; Department of Pathology, Hebei Chest Hospital, Shijiazhuang, China
| | - Ningfei Guo
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Xiaoyi Liu
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Xiuqing Wang
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Wenli Guo
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Shelly M Xie
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Chunping Liu
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Ping Lv
- Department of Pharmacology, Hebei Medical University, Shijiazhuang, China
| | - Lingxiao Xing
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Xianghong Zhang
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China; Department of Pathology, The Second Hospital, Hebei Medical University, Shijiazhuang, China.
| | - Haitao Shen
- Laboratory of Pathology, Hebei Medical University, Shijiazhuang, China.
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Zeng M, Li M, Zhang B, Li B, Kan Y, Zheng X, Feng W. Camellia oil inhibits oxidative stress and inflammatory response to ameliorate LPS-induced acute kidney injury via downregulation of TLR4-mediated activation of the NF-κB/AP-1/IRF3 and NLRP3 pathways. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103908] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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Le Y, Wang Y, Zhou L, Xiong J, Tian J, Yang X, Gai X, Sun Y. Cigarette smoke-induced HMGB1 translocation and release contribute to migration and NF-κB activation through inducing autophagy in lung macrophages. J Cell Mol Med 2020; 24:1319-1331. [PMID: 31769590 PMCID: PMC6991703 DOI: 10.1111/jcmm.14789] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 09/25/2019] [Accepted: 10/04/2019] [Indexed: 12/17/2022] Open
Abstract
High-mobility group box 1 (HMGB1) shows pro-inflammatory activity in various inflammatory diseases and has been found up-regulated in chronic obstructive pulmonary disease (COPD). Lung macrophages play an important role in airway inflammation and lung destruction in COPD, yet whether HMGB1 is involved in cigarette smoke (CS)-induced lung macrophage dysfunction is unknown. We sought to evaluate the intracellular localization and release of HMGB1 in lung macrophages from COPD patients and CS-exposed mice, and to investigate the role of HMGB1 in regulating autophagy in CS extract (CSE)-treated lung macrophages (MH-S cells). Our results showed that HMGB1 was highly expressed in lung tissues and sera of COPD patients and CS-exposed mice, along with predominantly cytoplasmic exporting from nuclei in lung macrophages. In vitro experiments revealed that CSE promoted the expression, nucleocytoplasmic translocation and release of HMGB1 partly via the nicotinic acetylcholine receptor (nAChR). Blockade of HMGB1 with chicken anti-HMGB1 polyclonal antibody (anti-HMGB1) or glycyrrhizin (Gly) attenuated the increase of LC3B-II and Beclin1, migration and p65 phosphorylation, suggesting the involvement of HMGB1 in autophagy, migration and NF-κB activation of lung macrophages. Hydroxychloroquine (CQ), an autophagy inhibitor, enhanced the increase of LC3B-II but not Beclin1 in CSE or rHMGB1-treated MH-S cells, and inhibition of autophagy by CQ and 3-methyladenine (3-MA) abrogated the migration and p65 phosphorylation of CSE-treated cells. These results indicate that CS-induced HMGB1 translocation and release contribute to migration and NF-κB activation through inducing autophagy in lung macrophages, providing novel evidence for HMGB1 as a potential target of intervention in COPD.
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Affiliation(s)
- Yanqing Le
- Department of Respiratory and Critical Care MedicinePeking University Third HospitalBeijingChina
| | - Yanhong Wang
- Department of Respiratory MedicineZhongshan City People's HospitalZhongshanChina
| | - Lu Zhou
- Department of Respiratory and Critical Care MedicinePeking University Third HospitalBeijingChina
| | - Jing Xiong
- Department of Respiratory and Critical Care MedicinePeking University Third HospitalBeijingChina
| | - Jieyu Tian
- Hematology Oncology CenterBeijing Children's HospitalCapital Medical UniversityBeijingChina
| | - Xia Yang
- Department of Respiratory MedicineTianjin Medical University General HospitalTianjingChina
| | - Xiaoyan Gai
- Department of Respiratory and Critical Care MedicinePeking University Third HospitalBeijingChina
| | - Yongchang Sun
- Department of Respiratory and Critical Care MedicinePeking University Third HospitalBeijingChina
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Shang L, Wang L, Shi X, Wang N, Zhao L, Wang J, Liu C. HMGB1 was negatively regulated by HSF1 and mediated the TLR4/MyD88/NF-κB signal pathway in asthma. Life Sci 2019; 241:117120. [PMID: 31825792 DOI: 10.1016/j.lfs.2019.117120] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/20/2019] [Accepted: 11/28/2019] [Indexed: 01/23/2023]
Abstract
AIMS The present study explored the function and regulatory mechanism of High mobility group box 1 (HMGB1) in asthma. MAIN METHODS OVA (ovalbumin)-induced asthmatic mice model and LPS-treated cellular model were established in this study. Airway inflammation was measured through detecting the expression of IL-4, IL-5, IL-13 and Interferon-γ (IFN-γ) in serum and BALF (bronchoalveolar lavage fluid) by ELISA kits. Bioinformatics predictive analysis, ChIP assays, Luciferase reporter assay and Western blotting were used to explore the relation between HMGB1 and HSF1 (Heat shock factor 1). KEY FINDINGS HMGB1 expression was increased in OVA-induced asthmatic mice. Silencing HMGB1 attenuated the increasing of IgE, inflammatory factors (IL-4, IL-5 and IL-13), and airway hyperresponsiveness that induced by OVA. In addition, our study found that HSF1 directly bind with the HMGB1 promoter and negatively regulation of HMGB1. HSF-1 were upregulated in OVA-induced asthmatic mice, and knockdown of HSF1 aggravated the OVA-induced airway inflammation and airway hyperreactivity in mice may through promoting the expression of HMGB1 and the activation of the Toll-like receptor 4 (TLR4)/Myeloid differentiation primary response 88 (MyD88)/Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signal pathway. SIGNIFICANCE The expression of HMGB1 could be negatively regulated by HSF1, and the TLR4/MyD88/NF-κB signal pathway was involved in HSF1/HMGB1-mediated regulation of asthma.
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Affiliation(s)
- Liqun Shang
- Department of Respiratory Medicine, Shaanxi Provincial People's Hospital Xi'an, Shaanxi, 710068, PR China
| | - Li Wang
- Department of Respiratory Medicine, Shaanxi Provincial People's Hospital Xi'an, Shaanxi, 710068, PR China
| | - Xiaolan Shi
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Ning Wang
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Long Zhao
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Jing Wang
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Cuicui Liu
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China.
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Kuang P, Guo H, Deng H, Cui H, Fang J, Zuo Z, Deng J, Li Y, Wang X, Zhao L. Sodium fluoride impairs splenic innate immunity via inactivation of TLR2/MyD88 signaling pathway in mice. CHEMOSPHERE 2019; 237:124437. [PMID: 31356994 DOI: 10.1016/j.chemosphere.2019.124437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/04/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
Fluoride is known to affect the inflammatory process and autoregulation of immune responses, but the molecular mechanism by which fluoride causes innate immune injury remain largely unknown. Also, studies on sodium fluoride (NaF)-caused alteration of TLR signaling are still lacking. In the present study, we examined the effects of NaF on the mRNA and protein expression levels of TLR2/MyD88 signaling pathway molecules in the mouse spleen by using the methods of qRT-PCR and Western blotting. Consequently, we elucidated the mechanism underlying the effects of NaF on innate immunity. Two hundred and forty ICR mice were randomly divided into 4 groups with intragastric administration of distilled water in the control group and 12, 24, 48 mg/kg of NaF treatment in the experiment groups for 42 days. The findings revealed that NaF impaired splenic innate immunity in mice via inactivation of TLR2/MyD88 signaling pathway. NaF-inactivated TLR2/MyD88 signaling pathway was identified by prominently downregulated mRNA and protein expression levels of TLR2/MyD88, IRAK4, IRAK1, TRAF6, TAK1, MKK4/MKK7 and c-Jun, which ultimately altered the expression levels of IL-1β, IL-4, IL-6 and IL-8 to attenuate innate immunity.
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Affiliation(s)
- Ping Kuang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Agricultural Information Engineering of Sichuan Province, Sichuan Agricultural University, Yaan, Sichuan, 625014, China.
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Yinglun Li
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Xun Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Ling Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
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Wang M, Gauthier A, Daley L, Dial K, Wu J, Woo J, Lin M, Ashby C, Mantell LL. The Role of HMGB1, a Nuclear Damage-Associated Molecular Pattern Molecule, in the Pathogenesis of Lung Diseases. Antioxid Redox Signal 2019; 31:954-993. [PMID: 31184204 PMCID: PMC6765066 DOI: 10.1089/ars.2019.7818] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 06/07/2019] [Indexed: 12/11/2022]
Abstract
Significance: High-mobility group protein box 1 (HMGB1), a ubiquitous nuclear protein, regulates chromatin structure and modulates the expression of many genes involved in the pathogenesis of lung cancer and many other lung diseases, including those that regulate cell cycle control, cell death, and DNA replication and repair. Extracellular HMGB1, whether passively released or actively secreted, is a danger signal that elicits proinflammatory responses, impairs macrophage phagocytosis and efferocytosis, and alters vascular remodeling. This can result in excessive pulmonary inflammation and compromised host defense against lung infections, causing a deleterious feedback cycle. Recent Advances: HMGB1 has been identified as a biomarker and mediator of the pathogenesis of numerous lung disorders. In addition, post-translational modifications of HMGB1, including acetylation, phosphorylation, and oxidation, have been postulated to affect its localization and physiological and pathophysiological effects, such as the initiation and progression of lung diseases. Critical Issues: The molecular mechanisms underlying how HMGB1 drives the pathogenesis of different lung diseases and novel therapeutic approaches targeting HMGB1 remain to be elucidated. Future Directions: Additional research is needed to identify the roles and functions of modified HMGB1 produced by different post-translational modifications and their significance in the pathogenesis of lung diseases. Such studies will provide information for novel approaches targeting HMGB1 as a treatment for lung diseases.
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Affiliation(s)
- Mao Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Alex Gauthier
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - LeeAnne Daley
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Katelyn Dial
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Jiaqi Wu
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Joanna Woo
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Mosi Lin
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Charles Ashby
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
| | - Lin L. Mantell
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York
- Center for Inflammation and Immunology, The Feinstein Institute for Medical Research, Northwell Health, Manhasset, New York
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HMGB1-triggered inflammation inhibition of notoginseng leaf triterpenes against cerebral ischemia and reperfusion injury via MAPK and NF-κB signaling pathways. Biomolecules 2019; 9:biom9100512. [PMID: 31547018 PMCID: PMC6843331 DOI: 10.3390/biom9100512] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/18/2019] [Accepted: 09/18/2019] [Indexed: 01/01/2023] Open
Abstract
Ischemic stroke is a clinically common cerebrovascular disease whose main risks include necrosis, apoptosis and cerebral infarction, all caused by cerebral ischemia and reperfusion (I/R) injury. This process has particular significance for the treatment of stroke patients. Notoginseng leaf triterpenes (PNGL), as a valuable medicine, have been discovered to have neuroprotective effects. However, it was not confirmed that whether PNGL may possess neuroprotective effects against cerebral I/R injury. To explore the neuroprotective effects of PNGL and their underlying mechanisms, a middle cerebral artery occlusion/reperfusion (MCAO/R) model was established. In vivo results suggested that in MCAO/R model rats, PNGL pretreatment (73.0, 146, 292 mg/kg) remarkably decreased infarct volume, reduced brain water content, and improved neurological functions; moreover, PNGL (73.0, 146, 292 mg/kg) significantly alleviated blood-brain barrier (BBB) disruption and inhibited neuronal apoptosis and neuronal loss caused by cerebral I/R injury, while PNGL with a different concertation (146, 292 mg/kg) significantly reduced the concentrations of IL-6, TNF-α, IL-1 β, and HMGB1 in serums in a dose-dependent way, which indicated that inflammation inhibition could be involved in the neuroprotective effects of PNGL. The immunofluorescence and western blot analysis showed PNGL decreased HMGB1 expression, suppressed the HMGB1-triggered inflammation, and inhibited microglia activation (IBA1) in hippocampus and cortex, thus dose-dependently downregulating inflammatory cytokines including VCAM-1, MMP-9, MMP-2, and ICAM-1 concentrations in ischemic brains. Interestingly, PNGL administration (146 mg/kg) significantly downregulated the levels of p-P44/42, p-JNK1/2 and p-P38 MAPK, and also inhibited expressions of the total NF-κB and phosphorylated NF-κB in ischemic brains, which was the downstream pathway triggered by HMGB1. All of these results indicated that the protective effects of PNGL against cerebral I/R injury could be associated with inhibiting HMGB1-triggered inflammation, suppressing the activation of MAPKs and NF-κB, and thus improved cerebral I/R-induced neuropathological changes. This study may offer insight into discovering new active compounds for the treatment of ischemic stroke.
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Cigarette smoke preparations, not moist snuff, impair expression of genes involved in immune signaling and cytolytic functions. Sci Rep 2019; 9:13390. [PMID: 31527707 PMCID: PMC6746724 DOI: 10.1038/s41598-019-48822-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/27/2019] [Indexed: 12/29/2022] Open
Abstract
Cigarette smoke-induced chronic inflammation is associated with compromised immune responses. To understand how tobacco products impact immune responses, we assessed transcriptomic profiles in peripheral blood mononuclear cells (PBMCs) pretreated with Whole Smoke-Conditioned Medium (WS-CM) or Smokeless Tobacco Extracts (STE), and stimulated with lipopolysaccharide, phorbol myristate and ionomycin (agonists). Gene expression profiles from PBMCs treated with low equi-nicotine units (0.3 μg/mL) of WS-CM and one high dose of STE (100 μg/mL) were similar to those from untreated controls. Cells treated with medium and high doses of WS-CM (1.0 and 3.0 μg/mL) exhibited significantly different gene expression profiles compared to the low WS-CM dose and STE. Pre-treatment with higher doses of WS-CM inhibited the expression of several pro-inflammatory genes (IFNγ, TNFα, and IL-2), while CSF1-R and IL17RA were upregulated. Pre-treatment with high doses of WS-CM abolished agonist-stimulated secretion of IFNγ, TNF and IL-2 proteins. Pathway analyses revealed that higher doses of WS-CM inhibited NF-ĸB signaling, immune cell differentiation and inflammatory responses, and increased apoptotic pathways. Our results show that pre-treatment of PBMCs with higher doses of WS-CM inhibits immune activation and effector cytokine expression and secretion, resulting in a reduced immune response, whereas STE exerted minimal effects.
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Hwang YH, Lee Y, Paik MJ, Yee ST. Inhibitions of HMGB1 and TLR4 alleviate DINP-induced asthma in mice. Toxicol Res (Camb) 2019; 8:621-629. [PMID: 31588340 DOI: 10.1039/c9tx00048h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/17/2019] [Indexed: 12/18/2022] Open
Abstract
We studied the effects of high mobility group box chromosomal protein 1 (HMGB1) and toll-like receptor (TLR4) in diisonoyl phthalate (DINP)-induced asthma. Mice with DINP-induced asthma were treated with a TLR4-signaling inhibitor or anti-HMGB1 antibody, and various markers of asthma were measured 24 h later. DINP increased airway hyperresponsiveness, numbers of cells in BALF, numbers of inflammatory cells (leukocytes, lymphocytes, monocytes, eosinophils, neutrophils, basophils) in blood, mucus production, pulmonary fibrosis, Th2 type cytokine levels in BALF, and lung cell apoptosis. On the other hand, administrations of TLR4-signaling inhibitors (TAK-242) or anti-HMGB1 antibodies to a mouse model of DINP-induced asthma reduced biological markers of asthma. These results show TLR4 and HMGB1 both contribute to DINP-induced asthma, and that the inhibitions of TLR4 or HMGB1 offer potential means of treating asthma induced by phthalates like DINP.
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Affiliation(s)
- Yun-Ho Hwang
- College of Pharmacy , Sunchon National University , 255 Jungangno , Suncheon 540-950 , Republic of Korea . ; ; Tel: +82 61 750 3752
| | - Yongjin Lee
- College of Pharmacy , Sunchon National University , 255 Jungangno , Suncheon 540-950 , Republic of Korea . ; ; Tel: +82 61 750 3752
| | - Man-Jeong Paik
- College of Pharmacy , Sunchon National University , 255 Jungangno , Suncheon 540-950 , Republic of Korea . ; ; Tel: +82 61 750 3752
| | - Sung-Tae Yee
- College of Pharmacy , Sunchon National University , 255 Jungangno , Suncheon 540-950 , Republic of Korea . ; ; Tel: +82 61 750 3752
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Goldklang MP, Tekabe Y, Zelonina T, Trischler J, Xiao R, Stearns K, Rodriguez K, Shields A, Romanov A, D'Armiento JM, Johnson LL. Single-photon emission computed tomography/computed tomography imaging of RAGE in smoking-induced lung injury. Respir Res 2019; 20:116. [PMID: 31182072 PMCID: PMC6558785 DOI: 10.1186/s12931-019-1064-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 04/30/2019] [Indexed: 11/10/2022] Open
Abstract
Background Expression of the Receptor for Advanced Glycation Endproducts (RAGE) initiates pro-inflammatory pathways resulting in lung destruction. We hypothesized that RAGE directed imaging demonstrates increased lung uptake in smoke-exposure. Methods After exposure to room air or to cigarette smoke for 4-weeks or 16-weeks, rabbits were injected with 99mTc-anti-RAGE F(ab’)2 and underwent Single-Photon Emission Computed Tomography/Computed Tomography (SPECT/CT) imaging. Lung radiotracer uptake was calculated as percent injected dose (%ID). Lungs were dissected for gamma well counting and histological analysis. Results 99mTc-anti-RAGE F(ab’)2 SPECT/CT imaging demonstrated increased lung expression of RAGE with smoke exposure compared to room air control at 4-weeks: Room air right (R) 0.75 ± 0.38%ID, left (L) 0.62 ± 0.32%ID vs. Smoke exposed R 0.17 ± 0.03, L 0.17 ± 0.02%ID (p = 0.02 and 0.028, respectively). By 16-weeks of smoke exposure, the uptake decreased to 0.19 ± 0.05%ID R and 0.17 ± 0.05%ID L, significantly lower than 4-week imaging (p = 0.0076 and 0.0129 respectively). Staining for RAGE confirmed SPECT results, with the RAGE ligand HMGB1 upregulated in the macrophages of 4-week smoke-exposed rabbits. Conclusions RAGE-directed imaging identified pulmonary RAGE expression acutely in vivo in an animal model of emphysema early after smoke exposure, with diminution over time. These studies document the extent and time course of RAGE expression under smoke exposure conditions and could be utilized for disease monitoring and examining response to future RAGE-targeted therapies. Electronic supplementary material The online version of this article (10.1186/s12931-019-1064-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Monica P Goldklang
- Department of Anesthesiology, Columbia University, New York, NY, USA.,Department of Medicine, Columbia University, New York, NY, USA
| | - Yared Tekabe
- Department of Medicine, Columbia University, New York, NY, USA
| | - Tina Zelonina
- Department of Anesthesiology, Columbia University, New York, NY, USA
| | - Jordis Trischler
- Department of Anesthesiology, Columbia University, New York, NY, USA
| | - Rui Xiao
- Department of Anesthesiology, Columbia University, New York, NY, USA
| | - Kyle Stearns
- Department of Anesthesiology, Columbia University, New York, NY, USA
| | | | - Alexander Shields
- Department of Anesthesiology, Columbia University, New York, NY, USA
| | - Alexander Romanov
- Institute for Comparative Medicine, Columbia University, New York, NY, USA
| | - Jeanine M D'Armiento
- Department of Anesthesiology, Columbia University, New York, NY, USA. .,Department of Medicine, Columbia University, New York, NY, USA. .,Department of Physiology and Cellular Biophysics, Columbia University, New York, NY, USA.
| | - Lynne L Johnson
- Department of Medicine, Columbia University, New York, NY, USA.
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Larsen NK, Reilly MJ, Thankam FG, Fitzgibbons RJ, Agrawal DK. Novel understanding of high mobility group box-1 in the immunopathogenesis of incisional hernias. Expert Rev Clin Immunol 2019; 15:791-800. [PMID: 30987468 DOI: 10.1080/1744666x.2019.1608822] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Incisional hernias (IH) arise as a complication of patients undergoing laparotomy. Current literature has assessed the role of extracellular matrix (ECM) disorganization, alterations in type I and type III collagen, matrix metalloproteinases, and tissue inhibitors of metalloproteases on IH. However, there is limited information on the underlying molecular mechanisms that lead to ECM disorganization. Areas covered: We critically reviewed the literature surrounding IH and ECM disorganization and offer a novel pathway that may be the underlying mechanism resulting in ECM disorganization and the immunopathogenesis of IH. Expert opinion: High mobility group box-1 (HMGB-1), a damage-associated molecular pattern, plays an important role in the sterile inflammatory pathway and has been linked to ECM disorganization and the triggering of the NLRP3 inflammasome. Further research to investigate the role of HMGB-1 in the molecular pathogenesis of IH would be critical in identifying novel therapeutic targets in the management of IH formation.
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Affiliation(s)
- Nicholas K Larsen
- a Departments of Clinical and Translational Science , Creighton University School of Medicine , Omaha , USA
| | - Matthew J Reilly
- a Departments of Clinical and Translational Science , Creighton University School of Medicine , Omaha , USA
| | - Finosh G Thankam
- a Departments of Clinical and Translational Science , Creighton University School of Medicine , Omaha , USA.,b Surgery , Creighton University School of Medicine , Omaha , USA
| | - Robert J Fitzgibbons
- a Departments of Clinical and Translational Science , Creighton University School of Medicine , Omaha , USA.,b Surgery , Creighton University School of Medicine , Omaha , USA
| | - Devendra K Agrawal
- a Departments of Clinical and Translational Science , Creighton University School of Medicine , Omaha , USA
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Qu L, Chen C, Chen Y, Li Y, Tang F, Huang H, He W, Zhang R, Shen L. High-Mobility Group Box 1 (HMGB1) and Autophagy in Acute Lung Injury (ALI): A Review. Med Sci Monit 2019; 25:1828-1837. [PMID: 30853709 PMCID: PMC6423734 DOI: 10.12659/msm.912867] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Acute lung injury (ALI) is a life-threatening clinical syndrome in critically ill patients. The identification of novel biological markers for the early diagnosis of ALI and the development of more effective treatments are topics of current research. High mobility group box-1 protein (HMGB1) is a late inflammatory mediator associated with sepsis, malignancy, and immune disease. Levels of HMGB1 may reflect the severity of inflammation and tissue damage, indicating a potential role for HMGB1 as a prognostic biomarker in ALI, and a potential target for blocking inflammatory pathways. Several studies have shown that HMGB1 regulates autophagy. Autophagy, or type II programmed cell death, is an essential biological process that maintains cellular homeostasis. Studies have shown that HMGB1 and autophagy are involved in the pathogenesis of many lung diseases including ALI but the specific mechanisms underlying this association remain to be determined. This review aims to provide an update on the current status of the role of HMBG1 and autophagy in ALI.
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Affiliation(s)
- Lihua Qu
- Department of Physiology, Hunan Normal University Medical College, Changsha, Hunan, China (mainland)
| | - Chao Chen
- Department of Pathology and Key Laboratory of Cancer Stem Cells and Translational Medicine, Hunan Normal University Medical College, Changsha, Hunan, Christmas island
| | - YangYe Chen
- Department of Physiology, Hunan Normal University Medical College, Changsha, Hunan, China (mainland)
| | - Yi Li
- Department of Physiology, Hunan Normal University Medical College, Changsha, Hunan, China (mainland)
| | - Fang Tang
- Department of Medical Nursing, Hunan Normal University Medical College, Changsha, Hunan, China (mainland)
| | - Hao Huang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the Peoples' Liberation Army (PLA), Changsha, Hunan, China (mainland)
| | - Wei He
- Department of Ultrasonography, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland)
| | - Ran Zhang
- Department of Immunology, Hunan Normal University Medical College, Changsha, Hunan, China (mainland)
| | - Li Shen
- Department of Physiology, Hunan Normal University Medical College, Changsha, Hunan, China (mainland)
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Gu HF, Li N, Xu ZQ, Hu L, Li H, Zhang RJ, Chen RM, Zheng XL, Tang YL, Liao DF. Chronic Unpredictable Mild Stress Promotes Atherosclerosis via HMGB1/TLR4-Mediated Downregulation of PPARγ/LXRα/ABCA1 in ApoE -/- Mice. Front Physiol 2019; 10:165. [PMID: 30881312 PMCID: PMC6405526 DOI: 10.3389/fphys.2019.00165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 02/11/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Although our previous studies have confirmed that the activation of TLR4 is implicated in the development of atherosclerosis induced by chronic unpredicted mild stress (CUMS), the underling mechanism is largely unclear. Here, we hypothesized that CUMS accelerates atherosclerotic development through lowering PPARγ/LXRα-ABCA1 expression via HMGB1/TLR4 signaling. Methods: In present study, CUMS atherosclerotic animal models were established with AopE-/- mice, and CUMS Raw 264.7 macrophage models were mimicked by high corticosterone treatment, These models were treated with Ethyl pyruvate (EP, an inhibitor of HMGB1), TLR4 inhibitor TAK-242, and PPARγ agonist RSG (Rosiglitazone) to test our hypothesis, respectively. Results: Our results indicated that the protein levels of HMGB1, TLR4, and pro-inflammatory cytokines including IL-1β, TNF-α were elevated with the development of atherosclerosis in CUMS mice, while the expressions of PPARγ, LXRα, and ABCA1 declined. Notably, HMGB1 inhibition by EP reversed CUMS-induced atherosclerotic development, pro-inflammatory cytokines upregulation, and PPARγ/LXRα-ABCA1 downregulation. The same trend was observed in the stressed mice treatment with TAK-242. Further experimental evidences indicated that EP, TAK-242, and RSG treatment notably corrected foam cell formation, HMGB1 release, and down-regulation of LXRα and ABCA1 in CUMS Raw 264.7 macrophage model. Conclusion: These results indicate that CUMS exacerbates atherosclerosis is likely via HMGB1-mediated downregulation of PPARγ/LXRα-ABCA1 through TLR4. These data reveal a novel mechanism by which CUMS aggravates atherosclerosis and may offer a potential therapeutic target for this disease.
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Affiliation(s)
- Hong-Feng Gu
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Na Li
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Zhao-Qian Xu
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Lu Hu
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Hui Li
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Rong-Jie Zhang
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Ru-Meng Chen
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Xi-Long Zheng
- Division of Stem Cell Regulation and Application, State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan, Hunan University of Chinese Medicine, Changsha, China
| | - Ya-Ling Tang
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China
| | - Duan-Fang Liao
- Department of Physiology and Institute of Neuroscience, University of South China, Hengyang, China.,Division of Stem Cell Regulation and Application, State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan, Hunan University of Chinese Medicine, Changsha, China
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Hatayama K, Nosaka N, Yamada M, Yashiro M, Fujii Y, Tsukahara H, Liu K, Nishibori M, Matsukawa A, Morishima T. Combined effect of anti-high-mobility group box-1 monoclonal antibody and peramivir against influenza A virus-induced pneumonia in mice. J Med Virol 2018; 91:361-369. [PMID: 30281823 DOI: 10.1002/jmv.25330] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 09/27/2018] [Indexed: 12/11/2022]
Abstract
Human pandemic H1N1 2009 influenza virus causes significant morbidity and mortality with severe acute lung injury due to the excessive inflammatory reaction, even with neuraminidase inhibitor use. The anti-inflammatory effect of anti-high-mobility group box-1 (HMGB1) monoclonal antibody (mAb) against influenza pneumonia has been reported. In this study, we evaluated the combined effect of anti-HMGB1 mAb and peramivir against pneumonia induced by influenza A (H1N1) virus in mice. Nine-week-old male C57BL/6 mice were inoculated with H1N1 and treated with intramuscularly administered peramivir at 2 and 3 days post-infection (dpi). The anti-HMGB1 mAb or a control mAb was administered at 2, 3, and 4 dpi. Survival rates were assessed, and lung lavage and pathological analyses were conducted at 5 and 7 dpi. The combination of peramivir with the anti-HMGB1 mAb significantly improved survival rate whereas the anti-HMGB1 mAb alone did not affect virus proliferation in the lungs. This combination therapy also significantly ameliorated histopathological changes, neutrophil infiltration, and macrophage aggregation by inhibiting HMGB1, inflammatory cytokines, and oxidative stress. Fluorescence immunostaining showed that the anti-HMGB1 mAb inhibited HMGB1 translocation from type I alveolar epithelial cells. In summary, combining anti-HMGB1 with conventional anti-influenza therapy might be useful against severe influenza virus infection.
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Affiliation(s)
- Kazuki Hatayama
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Nobuyuki Nosaka
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Mutsuko Yamada
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masato Yashiro
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yosuke Fujii
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hirokazu Tsukahara
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Keyue Liu
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Akihiro Matsukawa
- Department of Pathology and Experimental Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Tsuneo Morishima
- Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Department of Pediatrics, Aichi Medical University, Japan
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Liu W, Liu Z, Zhang W, Cai S. Ulinastatin protects the lungs of COPD rats through the HMGB1/TLR4 signaling pathway. Oncol Lett 2018; 16:4057-4063. [PMID: 30128028 DOI: 10.3892/ol.2018.9123] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/12/2018] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to investigate the protective mechanism of ulinastatin against lung injury. Rat models with chronic obstructive pulmonary disease (COPD) were used to provide guidance for the medical treatment of this disease. The rats were divided into three groups: A control group, a model group and an experimental group (each, n=10). With the exception of the control group, all of the rats were prepared as models of COPD, using the composite molding method of smoking and intratracheal instillation of lipopolysaccharide. The rats in the model group all received a conventional treatment, while the rats in the experimental group received ulinastatin. A small animal lung function detector was used to examine lung function. The forced expiratory volume/sec (FEV) was negatively correlated with the protein expression levels of Toll-like receptor 4 (TLR4) and high mobility group box protein 1 (HMGB1). Real-time fluorescence quantitative polymerase chain reaction and western blot analyses were used to detect TLR4, MyD88 (myeloid differentiation factor 88), TRAF-6 (TNF receptor-associated factor 6), LOX-1 (lectin-type oxidized LDL receptor 1) and HMGB1 mRNA, along with their protein expression levels. The lung function of rats in the model group was significantly decreased compared with in the control group (P<0.05). In the experimental group the lung function was significantly greater, when compared with in the model group; however, it remained lower than in the control group. The mRNA and protein expression levels of TLR4, MyD88, TRAF-6, LOX-1 and HMGB1 were significantly higher in the model group than in the control and experimental groups; however, levels in the experimental group were significantly higher when compared with in the control group (P<0.05). The TLR4 and HMGB1 expression levels were positively correlated in all groups, which indicated involvement of the HMGB1/TLR4 signaling pathway. The FEV was negatively correlated with the protein expression levels of TLR4 and HMGB1. Thus, the protective effect of ulinastatin in the lungs of rats with COPD is associated with changes in the HMGB1/TLR4 signaling pathway.
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Affiliation(s)
- Wei Liu
- Chronic Airway Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.,Department of Respiratory Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410005, P.R. China
| | - Zhiguang Liu
- Department of Respiratory Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410005, P.R. China
| | - Weidong Zhang
- Department of Respiratory Medicine, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan 410005, P.R. China
| | - Shaoxi Cai
- Chronic Airway Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Li J, He X, Yang Y, Li M, Xu C, Yu R. Risk assessment of silica nanoparticles on liver injury in metabolic syndrome mice induced by fructose. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:366-374. [PMID: 29448021 DOI: 10.1016/j.scitotenv.2018.02.047] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Revised: 01/30/2018] [Accepted: 02/04/2018] [Indexed: 06/08/2023]
Abstract
This study aims to assess the effects and the mechanisms of silica nanoparticles (SiNPs) on hepatotoxicity in both normal and metabolic syndrome mouse models induced by fructose. Here, we found that SiNPs exposure lead to improved insulin resistance in metabolic syndrome mice, but markedly worsened hepatic ballooning, inflammation infiltration, and fibrosis. Moreover, SiNPs exposure aggravated liver injury in metabolic syndrome mice by causing serious DNA damage. Following SiNPs exposure, liver superoxide dismutase and catalase activities in metabolic syndrome mice were stimulated, which is accompanied by significantly increased malondialdehyde and 8-hydroxy-2-deoxyguanosine levels as compared to normal mice. Scanning electron microscope (SEM) revealed that SiNPs were more readily deposited in the liver mitochondria of metabolic syndrome mice, resulting in more severe mitochondrial injury as compared to normal mice. We speculated that SiNPs-induced mitochondrial injury might be the cause of hepatic oxidative stress, which further lead to a series of liver lesions as observed in mice following SiNPs exposure. Based on these results, it is likely that SiNPs will increase the risk and severity of liver disease in individuals with metabolic syndrome. Therefore, SiNPs should be used cautiously in food additives and clinical settings.
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Affiliation(s)
- Jianmei Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences Nanjing University, Nanjing 210023, China
| | - Xiwei He
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yang Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Mei Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
| | - Chenke Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Rong Yu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences Nanjing University, Nanjing 210023, China
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Association of Inflammatory Responses and ECM Disorganization with HMGB1 Upregulation and NLRP3 Inflammasome Activation in the Injured Rotator Cuff Tendon. Sci Rep 2018; 8:8918. [PMID: 29891998 PMCID: PMC5995925 DOI: 10.1038/s41598-018-27250-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/31/2018] [Indexed: 12/25/2022] Open
Abstract
Inflammation and extracellular matrix (ECM) disorganization following the rotator cuff tendon injuries (RCTI) delay the repair and healing process and the molecular mechanisms underlying RCTI pathology are largely unknown. Here, we examined the role of HMGB1 and NLRP3 inflammasome pathway in the inflammation and ECM disorganization in RCTI. This hypothesis was tested in a tenotomy-RCTI rat model by transecting the RC tendon from the humerus. H&E and pentachrome staining revealed significant changes in the morphology, architecture and ECM organization in RC tendon tissues following RCTI when compared with contralateral control. Severity of the injury was high in the first two weeks with improvement in 3–4 weeks following RCTI, and this correlated with the healing response. The expression of proteins associated with increased HMGB-1 and upregulation of NLRP3 inflammasome pathway, TLR4, TLR2, TREM-1, RAGE, ASC, Caspase-1, and IL-1β, in the first two weeks following RCTI followed by decline in 3–4 weeks. These results suggest the association of inflammatory responses and ECM disorganization with HMGB1 upregulation and NLRP3 inflammasome activation in the RC tendons and could provide novel target(s) for development of better therapeutic strategies in the management of RCTI.
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Park EJ, Kim YM, Kim HJ, Chang KC. Degradation of histone deacetylase 4 via the TLR4/JAK/STAT1 signaling pathway promotes the acetylation of high mobility group box 1 (HMGB1) in lipopolysaccharide-activated macrophages. FEBS Open Bio 2018; 8:1119-1126. [PMID: 29988587 PMCID: PMC6026695 DOI: 10.1002/2211-5463.12456] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/16/2018] [Accepted: 05/17/2018] [Indexed: 02/06/2023] Open
Abstract
High mobility group box 1 (HMGB1) has been proposed as crucial in the pathogenesis of many diseases including sepsis. Acetylation of HMGB1 prevents its entry into the nucleus and leads to its secretion from the cell where it can trigger inflammation. We hypothesized that histone deacetylase 4 (HDAC4) controls the acetylation of HMGB1 in lipopolysaccharide (LPS)‐stimulated RAW264.7 cells via the janus kinase (JAK)/signal transducer and activator of transcription (STAT) pathway. The results showed that LPS treatment promoted the degradation of HDAC4 in a proteasome‐dependent manner, which led to HMGB1 acetylation. In LPS‐activated RAW264.7 cells, treatment with TAK‐242 (a toll like receptor 4 inhibitor) and pyridone 6 (a JAK inhibitor) significantly inhibited HDAC4 degradation and acetylation of HMGB1, and thus prevented secretion of HMGB1. Decreased phosphorylation of STAT1 was also observed. Interestingly, HDAC4 overexpression significantly prevented the acetylation and secretion of HMGB1 in both RAW264.7 cells and isolated murine peritoneal macrophages. We conclude that HDAC4 might be a useful target for the treatment of sepsis.
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Affiliation(s)
- Eun J Park
- Department of Pharmacology Institute of Health Sciences College of Medicine Gyeongsang National University Jinju Korea
| | - Young M Kim
- Department of Pharmacology Institute of Health Sciences College of Medicine Gyeongsang National University Jinju Korea
| | - Hye J Kim
- Department of Pharmacology Institute of Health Sciences College of Medicine Gyeongsang National University Jinju Korea
| | - Ki C Chang
- Department of Pharmacology Institute of Health Sciences College of Medicine Gyeongsang National University Jinju Korea
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50
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MiR-27-3p regulates TLR2/4-dependent mouse alveolar macrophage activation by targetting PPARγ. Clin Sci (Lond) 2018; 132:943-958. [PMID: 29572385 DOI: 10.1042/cs20180083] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/19/2018] [Accepted: 03/23/2018] [Indexed: 02/07/2023]
Abstract
Activation of alveolar macrophages (AMs) and the release of cytokines play critical roles in the pathogenesis of chronic obstructive pulmonary disease (COPD). However, little is known about the mechanisms of AM activation. miRNAs have recently emerged as key regulators of inflammation and as mediators of macrophage activation and polarization. We identified potential miRNAs related to AM activation using miRNA microarray analysis, which showed that miR-27-3p expression was up-regulated in AMs and the lung tissues of mice exposed to cigarette smoke (CS)/lipopolysaccharide (LPS), and found that miR-27-3p regulated proinflammatory cytokine production and AM polarization depending on TLR2/4 intracellular signaling in AMs. We also found that miR-27-3p controlled TLR2/4 signaling in AMs via targetting the 3′-UTR sequences of peroxisome proliferator-activated receptor γ (PPARγ) and inhibiting PPARγ activation. Moreover, we found that PPARγ activation not only inhibited CS/LPS-induced TLR2/4 expression and miR-27-3p-mediated TLR2/4 signaling cascades involving the nuclear factor-κB (NF-κB), c-Jun NH2-terminal kinase (JNK)/p38, and Janus kinase-signal transducer and activator of transcription (JAK/STAT) pathways in AMs but also ameliorated CS/LPS-induced AM activation and pulmonary inflammation. Our study revealed that miR-27-3p mediated AM activation by the inhibition of PPARγ activation and sensitization of TLR signaling.
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