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Dai J, Chen R, Wang J, Zhou P, Wang B, Li J, Lu Y, Pang X, Fu S. Intraperitoneal administration of doxorubicin-encapsulated Brucea javanica oil nanoemulsion against malignant ascites. Eur J Pharm Biopharm 2024; 202:114422. [PMID: 39033885 DOI: 10.1016/j.ejpb.2024.114422] [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: 03/29/2024] [Revised: 07/10/2024] [Accepted: 07/18/2024] [Indexed: 07/23/2024]
Abstract
Malignant ascites is a common complication of advanced cancers, which reduces survival rates and diminishes patients' quality of life. Intraperitoneal chemotherapy is a conventional method for treating cancer-related ascites, but the poor drug retention of conventional drugs requires frequent administration to maintain sustained anti-tumor effects. In this study, we encapsulated doxorubicin (DOX) into Brucea javanica oil (BJO) to develop a water-in-oil (W/O) nanoemulsion called BJO@DOX for the treatment of malignant ascites through in-situ intraperitoneal administration. BJO significantly induced apoptosis of S180 cells by upregulating the expression of p53 and caspase-3 (cleaved). Additionally, BJO notably downregulated the expression of Bcl-2, further promoting apoptosis of S180 cells. Cell apoptosis significantly inhibited ascites formation and tumor cell proliferation in a mouse model. The combination of DOX and BJO exhibited satisfactory synergistic effects, consequently prolonging the survival period of mice. Histological examination of major organs indicated that the nanoemulsion had excellent biosafety in vivo. The BJO@DOX nanoemulsion represents a promising platform for in-situ chemotherapy of malignant ascites.
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Affiliation(s)
- Jie Dai
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Renjin Chen
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jie Wang
- Department of Pediatrics, School of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Ping Zhou
- Department of Radiology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Biqiong Wang
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jianmei Li
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yun Lu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xianlun Pang
- Health Management Center, the Affiliated TCM Hospital of Southwest Medical University, Luzhou 646000, China.
| | - Shaozhi Fu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
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Rao T, Yang W, Ma X, Jiang X, Jiang S, Xu S. Bergapten attenuates hemorrhagic shock induced multi-organ injury by inhibiting NLRP3 inflammasome activation and pyroptosis. Int Immunopharmacol 2024; 140:112839. [PMID: 39126737 DOI: 10.1016/j.intimp.2024.112839] [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: 04/09/2024] [Revised: 07/20/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024]
Abstract
OBJECTIVES Treatment of hemorrhagic shock (HS) induced multi-organ injury remains a challenge. Bergapten (BeG) is a bioactive coumarin-derived compound, and previous articles have suggested that BeG may serve as a prospective therapeutic modality for HS. This study was designed to investigate the efficacy of BeG in the treatment of HS and its underlying mechanisms. METHODS In this research, we established a rat model of HS, following which we assessed the protective effects of BeG on HS induced multi-organ injury. Subsequently, we scrutinized the activation of NLRP3 inflammasomes and pyroptosis in damaged organs. Additionally, we conducted examinations of AMPK and the downstream mitophagy pathway in damaged organs. Finally, we established a hypoxia/reoxygenation (H/R) model in HK-2 cells to simulate the in vitro HS process. Following AMPK inhibition with compound C, we evaluated the levels of mitophagy and cellular pyroptosis in BeG-treated HK-2 cells subjected to H/R. RESULTS BeG treatment alleviated HS induced multi-organ injury. Subsequent analyses indicated that the therapeutic effects of BeG were related to the attenuation of NLRP3 inflammasome activation and pyroptosis. Additionally, we found BeG treatment stimulated the phosphorylation of AMPK, thereby enhancing mitophagy. Lastly, we found that the inhibition of AMPK in vitro attenuates BeG's enhancement of mitophagy and its suppression of pyroptosis. CONCLUSION Our research indicates that BeG has the potential to alleviate multi-organ injury induced by HS. The protective effect of BeG is likely associated with its promotion of mitophagy through AMPK activation, thereby inhibiting NLRP3 inflammasome-mediated pyroptosis.
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Affiliation(s)
- Taiwen Rao
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, China; Zhejiang Provincial Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China
| | - Wei Yang
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, China; Zhejiang Provincial Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China
| | - Ximei Ma
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, China; Zhejiang Provincial Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China
| | - Xiangkang Jiang
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, China; Zhejiang Provincial Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China
| | - Shouyin Jiang
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, China; Zhejiang Provincial Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China.
| | - Shanxiang Xu
- Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, China; Zhejiang Provincial Clinical Research Center for Emergency and Critical Care Medicine, Hangzhou, China.
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Zhou QQ, Wu YP, Liu P, Deng WZ, Lu YH, Gong HB, Lin XM, Sun WY, Wang R, Huang F, Cao YF, Li YF, Kurihara H, Ouyang SH, Liang L, He RR. Regulation of hepatocyte phospholipid peroxidation signaling by a Chinese patent medicine against psychological stress-induced liver injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155613. [PMID: 38703659 DOI: 10.1016/j.phymed.2024.155613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/20/2024] [Accepted: 04/07/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND Psychological stress is associated with various diseases including liver dysfunction, yet effective intervention strategies remain lacking due to the unrevealed pathogenesis mechanism. PURPOSE This study aims to explore the relevance between BMAL1-controlled circadian rhythms and lipoxygenase 15 (ALOX15)-mediated phospholipids peroxidation in psychological stress-induced liver injury, and to investigate whether hepatocyte phospholipid peroxidation signaling is involved in the hepatoprotective effects of a Chinese patent medicine, Pien Tze Huang (PZH). METHODS Restraint stress models were established to investigate the underlying molecular mechanisms of psychological stress-induced liver injury and the hepatoprotective effects of PZH. Redox lipidomics based on liquid chromatography-tandem mass spectrometry was applied for lipid profiling. RESULTS The present study discovered that acute restraint stress could induce liver injury. Notably, lipidomic analysis confirmed that phospholipid peroxidation was accumulated in the livers of stressed mice. Additionally, the essential core circadian clock gene Brain and Muscle Arnt-like Protein-1 (Bmal1) was altered in stressed mice. Circadian disruption in mice, as well as BMAL1-overexpression in human HepaRG cells, also appeared to have a significant increase in phospholipid peroxidation, suggesting that stress-induced liver injury is closely related to circadian rhythm and phospholipid peroxidation. Subsequently, arachidonate 15-lipoxygenase (ALOX15), a critical enzyme that contributed to phospholipid peroxidation, was screened as a potential regulatory target of BMAL1. Mechanistically, BMAL1 promoted ALOX15 expression via direct binding to an E-box-like motif in the promoter. Finally, this study revealed that PZH treatment significantly relieved pathological symptoms of psychological stress-induced liver injury with a potential mechanism of alleviating ALOX15-mediated phospholipid peroxidation. CONCLUSION Our findings illustrate the critical role of BMAL1-triggered phospholipid peroxidation in psychological stress-induced liver injury and provide new insight into treating psychological stress-associated liver diseases by TCM intervention.
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Affiliation(s)
- Qing-Qing Zhou
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Yan-Ping Wu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Pei Liu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China
| | - Wen-Zhe Deng
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Yu-Hui Lu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Hai-Biao Gong
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Xiao-Min Lin
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Wan-Yang Sun
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Rong Wang
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Utilization, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Feng Huang
- School of Chinese Materia Medica and Yunnan Key Laboratory of Southern Medicinal Utilization, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Yun-Feng Cao
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, NHC Key Laboratory of Reproduction Regulation, Shanghai 200032, China
| | - Yi-Fang Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Hiroshi Kurihara
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China
| | - Shu-Hua Ouyang
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China.
| | - Lei Liang
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China.
| | - Rong-Rong He
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE)/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou 510632, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau 999078, China.
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Gao X, Zhao T, Hao R, Zhang Z, Huang GB. Social defeat stress induces liver injury by modulating endoplasmic reticulum stress in C57BL/6J mice. Sci Rep 2024; 14:7137. [PMID: 38531904 DOI: 10.1038/s41598-024-57270-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 03/15/2024] [Indexed: 03/28/2024] Open
Abstract
Social defeat stress is associated with endoplasmic reticulum (ER) stress, inflammation and apoptosis. ER stress is thought to contribute to many lifestyle diseases such as liver injury, cardiovascular dysfunction and depression. We investigated the expression of the ER stress markers RNA-dependent protein kinase-like ER kinase (PERK), eukaryotic translation initiation factor 2α (eIF2α) and C/EBP homologous protein (CHOP), as well as inflammatory and apoptotic factors, to assess how social defeat stress induces liver injury. Furthermore, we evaluated the effects of the ER stress inhibitor phenylbutyric acid (PBA) and ER stress inducer thapsigargin (TG) on liver injury. Adult mice were divided into the control, social defeat, social defeat + PBA, TG, PBA and TG + PBA groups. The social defeat and social defeat + PBA groups were simultaneously exposed to social defeat stress for 10 days. The social defeat + PBA, TG, PBA and TG + PBA groups were treated with PBA or TG via intraperitoneal injections. PBA was injected 1 h before the TG injection into the TG + PBA group. Liver samples from six groups of mice were analyzed by histological analysis and western blotting. Social defeat stress promoted ER stress, increased the expression of inflammatory factors and induced apoptosis in the liver of socially defeated mice, which was reversed by PBA. Moreover, ER stress induces TG-induced liver injury by initiating ER stress. Social defeat stress initiates ER stress, promotes the expression of inflammatory and apoptotic factors, and induces liver injury. PBA suppresses liver injury caused by social defeat stress and TG treatment.
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Affiliation(s)
- XiaoLei Gao
- School of Nursing, Xinxiang Medical University, Xinxiang, China
- Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China
| | - Tong Zhao
- Department of Psychiatry, QuZhou Third Municipal Hospital, QuZhou, China
| | - Ran Hao
- Henan Key Laboratory of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - ZhaoHui Zhang
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Guang-Biao Huang
- Department of Psychiatry, Huzhou Third Municipal Hospital, The Affiliated Hospital of Huzhou University, No. 2088, Tiaoxi East Road, Huzhou, 313000, China.
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Yang K, Huang Z, Wang S, Zhao Z, Yi P, Chen Y, Xiao M, Quan J, Hu X. The Hepatic Nerves Regulated Inflammatory Effect in the Process of Liver Injury: Is Nerve the Key Treating Target for Liver Inflammation? Inflammation 2023; 46:1602-1611. [PMID: 37490221 DOI: 10.1007/s10753-023-01854-x] [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: 03/04/2023] [Revised: 05/09/2023] [Accepted: 06/05/2023] [Indexed: 07/26/2023]
Abstract
Liver injury is a common pathological basis for various liver diseases. Chronic liver injury is often an important initiating factor in liver fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Currently, hepatitis A and E infections are the most common causes of acute liver injury worldwide, whereas drug toxicity (paracetamol overdose) in the USA and part of Western Europe. In recent years, chronic liver injury has become a common disease that harms human health. Meanwhile, the main causes of chronic liver injury are viral hepatitis (B, C) and long-term alcohol consumption worldwide. During the process of liver injury, massive inflammatory cytokines are stimulated by these hazardous factors, leading to a systemic inflammatory response syndrome, followed by a compensatory anti-inflammatory response, which causes immune cell dysfunction and sepsis, subsequent multi-organ failure. Cytokine release and immune cell infiltration-mediated aseptic inflammation are the most important features of the pathobiology of liver failure. From this perspective, diminishing the onset and progression of liver inflammation is of clinical importance in the treatment of liver injury. Although many studies have hinted at the critical role of nerves in regulating inflammation, there largely remains undetermined how hepatic nerves mediate immune inflammation and how the inflammatory factors released by these nerves are involved in the process of liver injury. Therefore, the purpose of this article is to summarize previous studies in the field related to hepatic nerve and inflammation as well as future perspectives on the aforementioned questions. Our findings were presented in three aspects: types of nerve distribution in the liver, how these nerves regulate immunity, and the role of liver nerves in hepatitis and liver failure.
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Affiliation(s)
- Kaili Yang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zebing Huang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Shuyi Wang
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zhihong Zhao
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Panpan Yi
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yayu Chen
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Meifang Xiao
- Department of Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Jun Quan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China.
| | - Xingwang Hu
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, China.
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, 87Th of Xiangya Road, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
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Lai X, Lin Y, Huang S, Pu L, Zeng Q, Wang Z, Huang W. Dexmedetomidine alleviates pulmonary fibrosis through the ADORA2B-Mediated MAPK signaling pathway. Respir Res 2023; 24:214. [PMID: 37644529 PMCID: PMC10464018 DOI: 10.1186/s12931-023-02513-3] [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: 07/20/2023] [Accepted: 08/16/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) is a chronically progressive fibrotic pulmonary disease characterized by an uncertain etiology, a poor prognosis, and a paucity of efficacious treatment options. Dexmedetomidine (Dex), an anesthetic-sparing alpha-2 adrenoceptor (α2AR) agonist, plays a crucial role in organ injury and fibrosis. However, the underlying mechanisms of IPF remain unknown. METHODS In our study, the role of Dex in murine pulmonary fibrosis models was determined by Dex injection intraperitoneally in vivo. Fibroblast activation and myofibroblast differentiation were assessed after Dex treatment in vitro. The activation of MAPK pathway and the expression of Adenosine A2B receptor (ADORA2B) were examined in lung myofibroblasts. Moreover, the role of ADORA2B in Dex suppressing myofibroblast differentiation and pulmonary fibrosis was determined using the ADORA2B agonist BAY60-6583. RESULTS The results revealed that Dex could inhibit Bleo-induced pulmonary fibrosis in mice. In vitro studies revealed that Dex suppressed TGF-β-mediated MAPK pathway activation and myofibroblast differentiation. Furthermore, Dex inhibits myofibroblast differentiation and pulmonary fibrosis via downregulating ADORA2B expression. CONCLUSIONS Our findings suggest Dex as a potential therapeutic agent for pulmonary fibrosis. Dex may alleviate lung fibrosis and myofibroblast differentiation through the ADORA2B-mediated MAPK signaling pathway.
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Affiliation(s)
- Xiaofan Lai
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yingying Lin
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shaojie Huang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lvya Pu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Qihao Zeng
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhongxing Wang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Wenqi Huang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Vlasov I, Filatova E, Slominsky P, Shadrina M. Differential expression of Dusp1 and immediate early response genes in the hippocampus of rats, subjected to forced swim test. Sci Rep 2023; 13:9985. [PMID: 37340011 DOI: 10.1038/s41598-023-36611-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 06/07/2023] [Indexed: 06/22/2023] Open
Abstract
The forced swim test (FST) is widely used to screen for potential antidepressant drugs and treatments. Despite this, the nature of stillness during FST and whether it resembles "depressive-like behavior" are widely debated issues. Furthermore, despite being widely used as a behavioral assay, the effects of the FST on the brain transcriptome are rarely investigated. Therefore, in this study we have investigated changes in the transcriptome of the rat hippocampus 20 min and 24 h after FST exposure. RNA-Seq is performed on the hippocampus tissues of rats 20 min and 24 h after an FST. Differentially expressed genes (DEGs) were identified using limma and used to construct gene interaction networks. Fourteen differentially expressed genes (DEGs) were identified only in the 20-m group. No DEGs were identified 24 h after the FST. These genes were used for Gene Ontology term enrichment and gene-network construction. Based on the constructed gene-interaction networks, we identified a group of DEGs (Dusp1, Fos, Klf2, Ccn1, and Zfp36) that appeared significant based on multiple methods of downstream analysis. Dusp1 appears especially important, as its role in the pathogenesis of depression has been demonstrated both in various animal models of depression and in patients with depressive disorders.
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Affiliation(s)
- Ivan Vlasov
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute, .
| | - Elena Filatova
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute
| | - Petr Slominsky
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute
| | - Maria Shadrina
- Institute of Molecular Genetics of National Research Centre, Kurchatov Institute
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Wang Y, Sun H, Zhao W, Wang T, Zou M, Han Y, Sun Y, Peng X. Low let-7d microRNA levels in chick embryos enhance innate immunity against Mycoplasma gallisepticum by suppressing the mitogen-activated protein kinase pathway. Vet Res 2023; 54:50. [PMID: 37337278 DOI: 10.1186/s13567-023-01178-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/25/2023] [Indexed: 06/21/2023] Open
Abstract
Chick embryos are a valuable model for studying immunity and vaccines. Therefore, it is crucial to investigate the molecular mechanism of the Mycoplasma gallisepticum (MG)-induced immune response in chick embryos for the prevention and control of MG. In this study, we screened for downregulated let-7d microRNA in MG-infected chicken embryonic lungs to explore its involvement in the innate immune mechanism against MG. Here, we demonstrated that low levels of let-7d are a protective mechanism for chicken embryo primary type II pneumocytes (CP-II) in the presence of MG. Specifically, we found that depressed levels of let-7 in CP-II cells reduced the adhesion capacity of MG. This suppressive effect was achieved through the activated mitogen-activated protein kinase phosphatase 1 (MKP1) target gene and the inactivated mitogen-activated protein kinase (MAPK) pathway. Furthermore, MG-induced hyperinflammation and cell death were both alleviated by downregulation of let-7d. In conclusion, chick embryos protect themselves against MG infection through the innate immune molecule let-7d, which may result from its function as an inhibitor of the MAPK pathway to effectively mitigate MG adhesion, the inflammatory response and cell apoptosis. This study may provide new insight into the development of vaccines against MG.
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Affiliation(s)
- Yingjie Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Huanling Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Wenqing Zhao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Tengfei Wang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Mengyun Zou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yun Han
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yingfei Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Xiuli Peng
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
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Li D, Qian J, Li J, Wang J, Liu W, Li Q, Wu D. Dexmedetomidine attenuates acute stress-induced liver injury in rats by regulating the miR-34a-5p/ROS/JNK/p38 signaling pathway. J Toxicol Sci 2022; 47:169-181. [PMID: 35527005 DOI: 10.2131/jts.47.169] [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: 11/02/2022]
Abstract
Dexmedetomidine (DEX) protects against acute stress-induced liver injury, but what's less clear lies in the specific mechanism. To elucidate the specific mechanism underlying DEX on acute stress-induced liver injury, an in vivo model was constructed on rats with acute stress-induced liver injury by 15 min of exhaustive swimming and 3 hr of immobilization. DEX (30 μg/kg) or miR-34a-5p agomir was injected into model rats. Open field test was used to verify the establishment of the model. Liver injury was observed by hematoxylin-eosin (H&E) staining. Contents of norepinephrine (NE), alanine aminotransfease (ALT) and aspartate aminotransferase (AST) in serum of rats were detected by enzyme-linked immunosorbent assay (ELISA) and those of oxidative stress markers (reactive oxygen species (ROS), Malondialdehyde (MDA), Glutathione (GSH), Superoxide Dismutase (SOD) and Glutathione Peroxidase (GPX)) were measured using commercial kits. Apoptosis of hepatocytes was detected by Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay. Western blot was performed to detect the expressions of SOD2, COX-2, cytochrome C, Cleaved caspase 3, Bax, Bcl-2, P-JNK, JNK, P-p38, p38 and c-AMP, p-PKA and PKA in liver tissues. As a result, liver injury in model rat was alleviated by DEX. DEX attenuated the increase in the levels of NE, ALT, AST, MDA, ROS, apoptosis, SOD2, COX-2, Cytochrome C, cleaved caspase 3, Bax, and P-JNK, P-p38, c-AMP, P-PKA and miR-34a-5p, and the decrease in the levels of SOD, GPX, GSH and Bcl-2 in model rats. Furthermore, miR-34a-5p overexpression could partly reverse the effects of DEX. Collectively, DEX could alleviate acute stress-induced liver injury through ROS/JNK/p38 signaling pathway via downregulation of miR-34a-5p.
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Affiliation(s)
- Dan Li
- Anesthesia Operation Department, Zhejiang Hospital, China
| | - Jiang Qian
- Anesthesia Operation Department, Zhejiang Hospital, China
| | - Junfeng Li
- School of Basic Medicine, Zhejiang Chinese Medical University, China
| | - Jia Wang
- Neurosurgery Department, Zhejiang Hospital, China
| | - Wenhong Liu
- School of Basic Medicine, Zhejiang Chinese Medical University, China
| | - Qinfei Li
- Anesthesia Operation Department, Zhejiang Hospital, China
| | - Dan Wu
- Anesthesia Operation Department, Zhejiang Hospital, China
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10
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Protective Effects of Low-Dose Alcohol against Acute Stress-Induced Renal Injury in Rats: Involvement of CYP4A/20-HETE and LTB 4/BLT1 Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4475968. [PMID: 34691354 PMCID: PMC8528604 DOI: 10.1155/2021/4475968] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/20/2021] [Accepted: 09/29/2021] [Indexed: 02/01/2023]
Abstract
Low-dose alcohol possesses multiple bioactivities. Accordingly, we investigated the protective effect and related molecular mechanism of low-dose alcohol against acute stress- (AS-) induced renal injury. Herein, exhaustive swimming for 15 min combined with restraint stress for 3 h was performed to establish a rat acute stress model, which was verified by an open field test. Evaluation of renal function (blood creatinine and urea nitrogen), urine test (urine leukocyte esterase and urine occult blood), renal histopathology, oxidative stress, inflammation, and apoptosis was performed. The key indicators of the cytochrome P450 (CYP) 4A1/20-hydroxystilbenetetraenoic acid (20-HETE) pathway, cyclooxygenase (COX)/prostaglandin E2 (PGE2) pathway, and leukotriene B4 (LTB4)/leukotriene B4 receptor 1 (BLT1) pathway were measured by real-time PCR and ELISA. We found that low-dose alcohol (0.05 g/kg, i.p.) ameliorated AS-induced renal dysfunction and histological damage. Low-dose alcohol also attenuated AS-induced oxidative stress and inflammation, presenting as reduced malondialdehyde and hydrogen peroxide formation, increased superoxide dismutase and glutathione activity, and decreased myeloperoxidase, interleukin-6, interleukin-1β, and monocyte chemoattractant protein-1 levels (P < 0.05). Moreover, low-dose alcohol alleviated AS-induced apoptosis by downregulating Bax and cleaved caspase 3 protein expression and reduced numbers of terminal deoxynucleotidyl transferase-mediated dUTP nick-end label-positive cells (P < 0.01). Correlation analysis indicated that 20-HETE was strongly correlated with oxidative stress, while LTB4 was strongly correlated with inflammation. Low-dose alcohol inhibited AS-induced increases in CYP4A1, CYP4A2, CYP4A3, CYP4A8, and BLT1 mRNA levels and LTB4 and 20-HETE content (P < 0.01). Interestingly, low-dose alcohol had no effect on COX1 or COX2 mRNA expression or the concentration of PGE2. Furthermore, low-dose alcohol reduced calcium-independent phospholipase A2 mRNA expression, but did not affect secreted phospholipase A2 or cytosolic phospholipase A2 mRNA expression. Together, these results indicate that low-dose alcohol ameliorated AS-induced renal injury by inhibiting CYP4A/20-HETE and LTB4/BLT1 pathways, but not the COX/PGE2 pathway.
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11
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Li S, Zheng X, Hu Y, You K, Wang J. RNF31 mediated ubiquitination of A20 aggravates inflammation and hepatocyte apoptosis through the TLR4/MyD88/NF-κB signaling pathway. Chem Biol Interact 2021; 348:109623. [PMID: 34416243 DOI: 10.1016/j.cbi.2021.109623] [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: 06/16/2021] [Accepted: 08/16/2021] [Indexed: 01/06/2023]
Abstract
Inflammatory cytokine storm is one of the main pathogenesis of acute liver injury, and accumulating evidence suggests that the E3 ubiquitin ligase ring finger protein 31 (RNF31) plays an important regulatory role in the activation of inflammatory pathways. We found that RNF31 expression was up-regulated in lipopolysaccharide (LPS)-treated HL-7702 cells. Western blotting results showed decreased expression of RNF31 and total ubiquitinated proteins after transfection of si-RNF31. The results of MTT assay indicated that cell viability was enhanced. Flow cytometry analysis showed that cell apoptosis and ROS content was decreased, and ELISA assay results exhibited that the inflammatory factors secretion was reduced. Interestingly, A20 protein expression was inhibited as RNF31 expression was upregulated. On this basis, we performed co-immunoprecipitation assays and found that RNF31 could interact with A20. Actinomycin tracing and proteasome inhibition experiments showed that RNF31 degrades A20 through the proteasome pathway. Furthermore, overexpression of A20 enhanced cell viability, reduced apoptosis, and inhibited ROS generation and inflammatory factor secretion. Mechanistic studies revealed that RNF31 was able to degrade A20, which affected the inflammatory response and hepatocyte apoptosis mediated by the toll like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/nuclear transcription factor-κB (NF-κB) signaling pathway. Moreover, knockdown of RNF31 attenuated the inflammatory response induced by d-Gal/LPS in mice with acute liver injury. In conclusion, RNF31 degrades A20 by ubiquitination and activates the TLR4/MyD88/NF-κB signaling pathway to aggravate acute liver injury.
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Affiliation(s)
- Song Li
- Department of laboratory medicine, Zhumadian Central Hospital, Zhumadian, 463000, Henan, China.
| | - Ximing Zheng
- Department of laboratory medicine, Zhumadian Central Hospital, Zhumadian, 463000, Henan, China
| | - Yingchao Hu
- Department of laboratory medicine, Zhumadian Central Hospital, Zhumadian, 463000, Henan, China
| | - Kun You
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, Henan, China
| | - Junda Wang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, Henan, China
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12
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Wang L, Cao QM. Long non-coding RNA XIST alleviates sepsis-induced acute kidney injury through inhibiting inflammation and cell apoptosis via regulating miR-155-5p/WWC1 axis. Kaohsiung J Med Sci 2021; 38:6-17. [PMID: 34431595 DOI: 10.1002/kjm2.12442] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/13/2021] [Accepted: 08/02/2021] [Indexed: 12/20/2022] Open
Abstract
Sepsis is characterized by a severe inflammatory response throughout the whole body and can induce acute kidney injury (AKI). This research aimed to investigate the regulatory mechanisms underlying miR-155-5p in sepsis-induced AKI. CLP-treated mice were used as an in vivo model of sepsis-induced AKI, and LPS-treated HK-2 and TCMK-1 cells were used as in vitro models. Bioinformatics analyses and mechanistic assays were utilized to reveal the relationships between molecules. H&E staining was used to reveal morphological changes in kidney tissues. ELISAs were conducted to detect the concentrations of proinflammatory cytokines. We discovered that miR-155-5p was prominently upregulated in sepsis-induced AKI in vivo and in vitro. MiR-155-5p inhibition alleviated kidney injury in mice. Moreover, WWC1 served as a direct target of miR-155-5p and was negatively regulated by miR-155-5p. WWC1 upregulation inhibited the productions of inflammatory cytokines and suppressed apoptosis in vivo and in vitro. In addition, rescue assays demonstrated that WWC1 knockdown counteracted the inhibitory effect of anti-miR-155-5p on inflammation and apoptosis. Moreover, miR-155-5p could bind to XIST. XIST expression was downregulated in LPS-stimulated HK-2 and TCMK-1 cells. XIST could negatively regulate miR-155-5p expression and positively regulate WWC1 expression. Rescue assays revealed that miR-155-5p overexpression significantly reversed the suppressive effects of XIST upregulation on inflammation and apoptosis. In conclusion, our study revealed that the XIST/miR-155-5p/WWC1 axis modulated sepsis-induced AKI progression, providing promising insight into therapeutic targets for sepsis-induced AKI.
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Affiliation(s)
- Lei Wang
- Department of Emergency, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Qiu-Mei Cao
- Department of Emergency, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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13
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Spiers JG, Steiger N, Khadka A, Juliani J, Hill AF, Lavidis NA, Anderson ST, Cortina Chen HJ. Repeated acute stress modulates hepatic inflammation and markers of macrophage polarisation in the rat. Biochimie 2021; 180:30-42. [PMID: 33122103 DOI: 10.1016/j.biochi.2020.10.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/29/2020] [Accepted: 10/24/2020] [Indexed: 12/24/2022]
Abstract
Bidirectional communication between the neuroendocrine stress and immune systems permits classically anti-inflammatory glucocorticoids to exert pro-inflammatory effects in specific cells and tissues. Liver macrophages/Kupffer cells play a crucial role in initiating inflammatory cascades mediated by the release of pro-inflammatory cytokines following tissue injury. However, the effects of repeated acute psychological stress on hepatic inflammatory phenotype and macrophage activation state remains poorly understood. We have utilised a model of repeated acute stress in rodents to observe the changes in hepatic inflammatory phenotype, including anti-inflammatory vitamin D status, in addition to examining markers of classically and alternatively-activated macrophages. Male Wistar rats were subjected to control conditions or 6 h of restraint stress applied for 1 or 3 days (n = 8 per group) after which plasma concentrations of stress hormone, enzymes associated with liver damage, and vitamin D status were examined, in addition to hepatic expression of pro- and anti-inflammatory markers. Stress increased glucocorticoids and active vitamin D levels in addition to expression of glucocorticoid alpha/beta receptor, whilst changes in circulating hepatic enzymes indicated sustained liver damage. A pro-inflammatory response was observed in liver tissues following stress, and inducible nitric oxide synthase being observed within hepatic macrophage/Kupffer cells. Together, this suggests that stress preferentially induces a pro-inflammatory response in the liver.
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Affiliation(s)
- Jereme G Spiers
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia; Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia.
| | - Natasha Steiger
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Arun Khadka
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia
| | - Juliani Juliani
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia
| | - Andrew F Hill
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria, 3083, Australia
| | - Nickolas A Lavidis
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Stephen T Anderson
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Hsiao-Jou Cortina Chen
- School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia; WT-MRC Institute of Metabolic Science, University of Cambridge, Cambridge, CB2 0QQ, United Kingdom.
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14
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Wang T, Dou Y, Lin G, Li Q, Nie J, Chen B, Xie J, Su Z, Zeng H, Chen J, Xie Y. The anti-hepatocellular carcinoma effect of Brucea javanica oil in ascitic tumor-bearing mice: The detection of brusatol and its role. Biomed Pharmacother 2020; 134:111122. [PMID: 33341052 DOI: 10.1016/j.biopha.2020.111122] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/30/2020] [Accepted: 12/07/2020] [Indexed: 12/23/2022] Open
Abstract
Brucea javanica oil (BJO), one of the main products of Brucea javanica, has been widely used in treating different kinds of malignant tumors. Quassinoids are the major category of anticancer phytochemicals of B. javanica. However, current researches on the anti-cancer effect of BJO mainly focused on oleic acid and linoleic acid, the common major components of dietary edible oils, essential and characteristic components of B. javanica like quassinoids potentially involved remained unexplored. In the current investigation, we developed an efficient HPLC method to detect brusatol, a characteristic quassinoid, and comparatively scrutinized the anti-hepatocellular carcinoma (anti-HCC) effect of BJO, brusatol-free BJO (BF-BJO), and brusatol-enriched BJO (BE-BJO) against hepatoma 22 (H22) in mice. High-performance liquid chromatography (HPLC) was utilized to identify the components in BJO. BE-BJO was extracted with 95 % ethanol. The anti-tumor effect of BJO, BF-BJO and BE-BJO was comparatively investigated, and the potential underlying mechanism was explored in H22 ascites tumor-bearing mice. The results indicated that BJO and BE-BJO significantly prolonged the survival time of H22 ascites tumor-bearing mice, while BF-BJO exhibited no obvious effect. BJO and BE-BJO exhibited pronounced anti-HCC activity by suppressing the growth of implanted hepatoma H22 in mice, including ascending weight, abdominal circumference, ascites volume and cancer cell viability, with a relatively wide margin of safety. BJO and BE-BJO significantly induced H22 cell apoptosis by upregulating the miRNA-29b gene level and p53 expression. Furthermore, BJO and BE-BJO treatment substantially downregulated Bcl-2 and mitochondrial Cytochrome C protein expression, and upregulated expression levels of Bax, Bad, cytosol Cytochrome C, caspase-3 (cleaved), caspase‑9 (cleaved), PARP and PARP (cleaved) to induce H22 cells apoptosis. Brusatol was detected in BJO and found to be one of its major active anti-HCC components, rather than fatty acids including oleic acid and linoleic acid. The anti-HCC effect of BJO and BE-BJO was intimately associated with the activation of miRNA-29b, p53-associated apoptosis and mitochondrial-related pathways. Our study gained novel insight into the material basis of BJO in the treatment of HCC, and laid a foundation for a novel specific standard for the quality evaluation of BJO and its commercial products in terms of its anti-cancer application.
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Affiliation(s)
- Tongtong Wang
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, PR China; Shandong Qingdao No. 2 Health School, Qingdao, PR China
| | - Yaoxing Dou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Guoshu Lin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Qiaoping Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Juan Nie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Baoyi Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Jianhui Xie
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Ziren Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Huifang Zeng
- The First Affiliated Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, PR China.
| | - Jiannan Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China.
| | - Youliang Xie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, PR China.
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15
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Comparative analysis of acute and chronic stress-induced neurobehavioral alteration and liver injury in mice. Mol Cell Toxicol 2020. [DOI: 10.1007/s13273-020-00094-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Li W, Sun K, Hu F, Chen L, Zhang X, Wang F, Yan B. Protective effects of natural compounds against oxidative stress in ischemic diseases and cancers via activating the Nrf2 signaling pathway: A mini review. J Biochem Mol Toxicol 2020; 35:e22658. [PMID: 33118292 DOI: 10.1002/jbt.22658] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 08/28/2020] [Accepted: 10/09/2020] [Indexed: 12/11/2022]
Abstract
Oxidative stress, an imbalance between reactive oxygen species and antioxidants, has been seen in the pathological states of many disorders such as ischemic diseases and cancers. Many natural compounds (NCs) have long been recognized to ameliorate oxidative stress due to their inherent antioxidant activities. The modulation of oxidative stress by NCs via activating the Nrf2 signaling pathway is summarized in the review. Three NCs, ursolic acid, betulinic acid, and curcumin, and the mechanisms of their cytoprotective effects are investigated in myocardial ischemia, cerebral ischemia, skin cancer, and prostate cancer. To promote the therapeutic performance of NCs with poor water solubility, the formulation approach, such as the nano drug delivery system, is elaborated as well in this review.
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Affiliation(s)
- Wenji Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, China
| | - Kai Sun
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu, China
| | - Fang Hu
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu, China
| | - Longfei Chen
- China National Intellectual Property Administration Patent Re-examination and Invalidation Department Pharmaceutical Division, Beijing, China
| | - Xing Zhang
- Departments of Urology, Yangzhou Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Yangzhou, Jiangsu, China
| | - Fuxing Wang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu, China
| | - Bingchun Yan
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Key Laboratory of Zoonosis, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, Jiangsu, China
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17
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Dexmedetomidine suppresses bupivacaine-induced parthanatos in human SH-SY5Y cells via the miR-7-5p/PARP1 axis-mediated ROS. Naunyn Schmiedebergs Arch Pharmacol 2020; 394:783-796. [PMID: 32989562 DOI: 10.1007/s00210-020-01971-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 08/31/2020] [Indexed: 12/30/2022]
Abstract
This study aims to explore the regulatory mechanisms of dexmedetomidine in parthanatos. MTT assay was applied to reveal cell viability; JC-1 staining assay was utilized to reveal mitochondrial membrane potential. Reactive oxygen species (ROS) probe, DCFH-DA, was used to detect intracellular ROS production. Luciferase activity assay was applied to measure the binding between miR-7-5p and PARP1. We first identified that bupivacaine inhibited the viability and induced the parthanatos of human neuroblastoma SH-SY5Y cells. In addition, dexmedetomidine, a potent α2-adrenoceptor agonist, reversed the regulatory effect of bupivacaine on parthanatos of SH-SY5Y. More importantly, dexmedetomidine counteracted bupivacaine-induced changes of mitochondrial membrane potential and ROS production in SH-SY5Y cells. Hyper-activation of PARP1 plays a vital role in parthanatos. Further exploration of our study identified that bupivacaine triggered overexpression of PARP1 in SH-SY5Y cells. Bioinformatics analysis revealed that miR-7-5p targeted the 3' untranslated region (3' UTR) of PARP1 to inhibit PARP1 expression. In addition, dexmedetomidine recovered the suppressive effects of bupivacaine on miR-7-5p expression. Dexmedetomidine suppressed bupivacaine-induced parthanatos in SH-SY5Y cells via the miR-7-5p/PARP1 axis, which may shed a new insight into parthanatos-dependent neuronal injury.
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18
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Zhang H, Wei M, Sun Q, Yang T, Lu X, Feng X, Song M, Cui L, Fan H. Lycopene ameliorates chronic stress-induced hippocampal injury and subsequent learning and memory dysfunction through inhibiting ROS/JNK signaling pathway in rats. Food Chem Toxicol 2020; 145:111688. [PMID: 32810585 DOI: 10.1016/j.fct.2020.111688] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/22/2020] [Accepted: 08/11/2020] [Indexed: 12/20/2022]
Abstract
The natural carotenoid lycopene (LYC) has strong antioxidant and neuroprotective capacities. This study investigated the effects and mechanisms of LYC on chronic stress-induced hippocampal lesions and learning and memory dysfunction. Rats were administered LYC and/or chronic restraint stress (CRS) for 21 days. Morris water maze results demonstrated that LYC prevented CRS-induced learning and memory dysfunction. Histopathological staining and transmission electron microscopy observation revealed that LYC ameliorated CRS-induced hippocampal microstructural and ultrastructural damage. Furthermore, LYC alleviated CRS-induced oxidative stress by reducing reactive oxygen species (ROS) production and enhancing antioxidant enzyme activities. LYC also improved CRS-induced hippocampal mitochondrial dysfunction by recovering mitochondrial membrane potential, and complex I (NADH dehydrogenase) and II (succinate dehydrogenase) activities. Moreover, LYC reduced CRS-induced apoptosis via the mitochondrial apoptotic pathway, and decreased the number of terminal deoxynucleotidyl transferase dUTP nick-end-labeled positive cells. Additionally, western blot analysis demonstrated that LYC inhibited CRS-induced activation of the c-Jun N-terminal kinase (JNK) signaling pathway. Correlation analysis indicated that ROS levels, JNK activation, and the mitochondrial apoptotic pathway were positively correlated. Further investigation of the underlying mechanisms revealed that the ROS scavenger N-acetyl-l-cysteine inhibited CRS-induced JNK activation. Furthermore, the JNK inhibitor SP600125 relieved CRS-induced hippocampal mitochondrial dysfunction, apoptosis via the mitochondrial apoptotic pathway, and learning and memory dysfunction. Together, these results suggest that LYC alleviates hippocampal oxidative stress, mitochondrial dysfunction, and apoptosis by inhibiting the ROS/JNK signaling pathway, thereby improving CRS-induced hippocampal injury and learning and memory dysfunction. This study provides a theoretical basis and new therapeutic strategies for the application of LYC to relieve chronic stress encephalopathy.
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Affiliation(s)
- Haiyang Zhang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Mian Wei
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Qinghong Sun
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, PR China
| | - Tianyuan Yang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xiangyu Lu
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Xiujing Feng
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Miao Song
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Lin Cui
- College of Life Science, Northeast Agricultural University, Harbin, 150030, PR China
| | - Honggang Fan
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China.
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19
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Amini R, Asle-Rousta M, Aghazadeh S. Hepatoprotective effect of limonene against chronic immobilization induced liver damage in rats. Naunyn Schmiedebergs Arch Pharmacol 2020; 393:2053-2059. [PMID: 32514601 DOI: 10.1007/s00210-020-01915-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/28/2020] [Indexed: 12/15/2022]
Abstract
Prolonged immobilization may impair the physiological functions of various organs of the body, including the liver, brain, and heart. In this study, we investigated the hepatoprotective effect of limonene (a monoterpene) in male rats exposed to chronic immobilization. Rats were exposed to immobilization stress (6 h/21 days) and received limonene (10 mg/kg, oral gavage) during this period. Chronic immobilization increased the levels of liver enzymes alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase in serum. Increased levels of malondialdehyde and decreased glutathione content were also observed in the liver tissue of immobilized rats. Expression of TNF-α, IL-1β, IL-6, and NF-κB mRNA was increased, and infiltrated cells were also observed in the liver parenchyma in rats exposed to chronic immobilization. Limonene prevented all these changes in immobilized rats. These results suggest that limonene, due to its antioxidant and anti-inflammatory effects, rescues the liver from damages caused by chronic immobilization.
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Affiliation(s)
- Rahim Amini
- Biology Research Center, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | | | - Safieh Aghazadeh
- Department of Biochemistry, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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20
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Wu SJ, Lin ZH, Lin YZ, Rao ZH, Lin JF, Wu LP, Li L. Dexmedetomidine Exerted Anti-arrhythmic Effects in Rat With Ischemic Cardiomyopathy via Upregulation of Connexin 43 and Reduction of Fibrosis and Inflammation. Front Physiol 2020; 11:33. [PMID: 32116751 PMCID: PMC7020758 DOI: 10.3389/fphys.2020.00033] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 01/15/2020] [Indexed: 12/20/2022] Open
Abstract
Background Persistent myocardial ischemia post-myocardial infarction can lead to fatal ventricular arrhythmias such as ventricular tachycardia and fibrillation, both of which carry high mortality rates. Dexmedetomidine (Dex) is a highly selective α2-agonist used in surgery for congenital cardiac disease because of its antiarrhythmic properties. Dex has previously been reported to prevent or terminate various arrhythmias. The purpose of the present study was to determine the anti-arrhythmic properties of Dex in the context of ischemic cardiomyopathy (ICM) after myocardial infarction. Methods and Results We randomly allocated 48 rats with ICM, created by persistent ligation of the left anterior descending artery for 4 weeks, into six groups: Sham (n = 8), Sham + BML (n = 8), ICM (n = 8), ICM + BML (n = 8), ICM + Dex (n = 8), and ICM + Dex + BML (n = 8). Treatments started after ICM was confirmed (the day after echocardiographic measurement) and continued for 4 weeks (inject intraperitoneally, daily). Dex inhibited the generation of collagens, cytokines, and other inflammatory mediators in rats with ICM via the suppression of NF-κB activation and increased the distribution of connexin 43 (Cx43) via phosphorylation of adenosine 5′-monophosphate-activated protein kinase (AMPK). Dex reduced the occurrence of spontaneous ventricular arrhythmias (ventricular premature beat or ventricular tachycardia), decreased the inducibility quotient of ventricular arrhythmias induced by PES, and partly improved cardiac contraction. The AMPK antagonist BML-275 dihydrochloride (BML) partly weakened the cardioprotective effect of Dex. Conclusion Dex conferred anti-arrhythmic effects in the context of ICM via upregulation of Cx43 and suppression of inflammation and fibrosis. The anti-arrhythmic and anti-inflammatory properties of Dex may be mediated by phosphorylation of AMPK and subsequent suppression of NF-κB activation.
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Affiliation(s)
- Shu-Jie Wu
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhong-Hao Lin
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuan-Zheng Lin
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhi-Heng Rao
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jia-Feng Lin
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lian-Pin Wu
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lei Li
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Zi SF, Li JH, Liu L, Deng C, Ao X, Chen DD, Wu SZ. Dexmedetomidine-mediated protection against septic liver injury depends on TLR4/MyD88/NF-κB signaling downregulation partly via cholinergic anti-inflammatory mechanisms. Int Immunopharmacol 2019; 76:105898. [PMID: 31520992 DOI: 10.1016/j.intimp.2019.105898] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Uncontrolled inflammatory responses exacerbate the pathogenesis of septic acute liver injury (ALI), posing a lethal threat to the host. Dexmedetomidine (DEX) has been reported to possess protective properties in inflammatory conditions. This study aimed to investigate whether DEX pretreatment exhibits hepatoprotection against ALI induced by lipopolysaccharide (LPS) in rats and determine its possible molecular mechanism. METHODS Septic ALI was induced by intravenous injection of LPS. The rats received DEX intraperitoneally 30 min before LPS administration. α-Bungarotoxin (α-BGT), a specific α7 nicotinic acetylcholine receptor (α7nAChR) antagonist, was administered intraperitoneally 1 h before LPS exposure. The role of the vagus nerve was verified by performing unilateral cervical vagotomy or sham surgery before sepsis. RESULTS The expression of α7nAChR, toll-like receptor 4 (TLR4), high mobility group box 1 (HMGB1), and cleaved caspase-3 increased, peaking 24 h during sepsis. DEX enhanced α7nAChR activation and reduced TLR4 expression upon challenge with LPS. DEX significantly prevented LPS-induced ALI, which was associated with increased survival, the mitigation of pathological changes, the attenuation of inflammatory cytokine expression and apoptosis, and the downregulation of TLR4/MyD88/NF-κB pathway. Moreover, the hepatoprotective effect of DEX was abolished by α-BGT. Further investigation established that vagotomy, compared to sham surgery, triggered more severe pathogenic manifestations and higher proinflammatory cytokine levels. The inhibitory effects of DEX were shown in sham-operated rats but not in vagotomized rats. CONCLUSIONS Our data highlight the pivotal function of α7nAChR and intact vagus nerves in protecting against LPS-induced ALI through inhibiting the TLR4/MyD88/NF-κB signaling pathway upon pretreatment with DEX.
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Affiliation(s)
- Shuang-Feng Zi
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China
| | - Jing-Hui Li
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China.
| | - Lei Liu
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China
| | - Chao Deng
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China
| | - Xue Ao
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China
| | - Dan-Dan Chen
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China
| | - Sheng-Zan Wu
- Department of Critical Care Medicine, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou 570208, China
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