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Song R, He S, Wu Y, Tan S. Pyroptosis in sepsis induced organ dysfunction. Curr Res Transl Med 2024; 72:103419. [PMID: 38246070 DOI: 10.1016/j.retram.2023.103419] [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: 04/17/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 01/23/2024]
Abstract
As an uncontrolled inflammatory response to infection, sepsis and sepsis induced organ dysfunction are great threats to the lives of septic patients. Unfortunately, the pathogenesis of sepsis is complex and multifactorial, which still needs to be elucidated. Pyroptosis is a newly discovered atypical form of inflammatory programmed cell death, which depends on the Caspase-1 dependent classical pathway or the non-classical Caspase-11 (mouse) or Caspase-4/5 (human) dependent pathway. Many studies have shown that pyroptosis is related to sepsis. The Gasdermin proteins are the key molecules in the membrane pores formation in pyroptosis. After cut by inflammatory caspase, the Gasdermin N-terminal fragments with perforation activity are released to cause pyroptosis. Pyroptosis is closely related to the occurrence and development of sepsis induced organ dysfunction. In this review, we summarized the molecular mechanism of pyroptosis, the key role of pyroptosis in sepsis and sepsis induced organ dysfunction, with the aim to bring new diagnostic biomarkers and potential therapeutic targets to improve sepsis clinical treatments.
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Affiliation(s)
- Ruoyu Song
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China.
| | - Shijun He
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China
| | - Yongbin Wu
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China
| | - Sipin Tan
- Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China; Sepsis Translational Medicine Key Laboratory of Hunan Province, Central South University, Changsha, China; National Medicine Functional Experimental Teaching Center, Central South University, Changsha, China.
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Zheng LY, Duan Y, He PY, Wu MY, Wei ST, Du XH, Yao RQ, Yao YM. Dysregulated dendritic cells in sepsis: functional impairment and regulated cell death. Cell Mol Biol Lett 2024; 29:81. [PMID: 38816685 PMCID: PMC11140885 DOI: 10.1186/s11658-024-00602-9] [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: 01/16/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024] Open
Abstract
Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. Studies have indicated that immune dysfunction plays a central role in the pathogenesis of sepsis. Dendritic cells (DCs) play a crucial role in the emergence of immune dysfunction in sepsis. The major manifestations of DCs in the septic state are abnormal functions and depletion in numbers, which are linked to higher mortality and vulnerability to secondary infections in sepsis. Apoptosis is the most widely studied pathway of number reduction in DCs. In the past few years, there has been a surge in studies focusing on regulated cell death (RCD). This emerging field encompasses various forms of cell death, such as necroptosis, pyroptosis, ferroptosis, and autophagy-dependent cell death (ADCD). Regulation of DC's RCD can serve as a possible therapeutic focus for the treatment of sepsis. Throughout time, numerous tactics have been devised and effectively implemented to improve abnormal immune response during sepsis progression, including modifying the functions of DCs and inhibiting DC cell death. In this review, we provide an overview of the functional impairment and RCD of DCs in septic states. Also, we highlight recent advances in targeting DCs to regulate host immune response following septic challenge.
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Affiliation(s)
- Li-Yu Zheng
- Translational Medicine Research Center, Medical Innovation Research Division of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Yu Duan
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou, 423000, China
| | - Peng-Yi He
- Translational Medicine Research Center, Medical Innovation Research Division of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Meng-Yao Wu
- Translational Medicine Research Center, Medical Innovation Research Division of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Shu-Ting Wei
- Translational Medicine Research Center, Medical Innovation Research Division of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China
| | - Xiao-Hui Du
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
| | - Ren-Qi Yao
- Translational Medicine Research Center, Medical Innovation Research Division of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
| | - Yong-Ming Yao
- Translational Medicine Research Center, Medical Innovation Research Division of the Chinese PLA General Hospital, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
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Roychowdhury S, Pant B, Cross E, Scheraga R, Vachharajani V. Effect of ethanol exposure on innate immune response in sepsis. J Leukoc Biol 2024; 115:1029-1041. [PMID: 38066660 PMCID: PMC11136611 DOI: 10.1093/jleuko/qiad156] [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: 05/10/2023] [Revised: 11/08/2023] [Accepted: 11/17/2023] [Indexed: 01/06/2024] Open
Abstract
Alcohol use disorder, reported by 1 in 8 critically ill patients, is a risk factor for death in sepsis patients. Sepsis, the leading cause of death, kills over 270,000 patients in the United States alone and remains without targeted therapy. Immune response in sepsis transitions from an early hyperinflammation to persistent inflammation and immunosuppression and multiple organ dysfunction during late sepsis. Innate immunity is the first line of defense against pathogen invasion. Ethanol exposure is known to impair innate and adaptive immune response and bacterial clearance in sepsis patients. Specifically, ethanol exposure is known to modulate every aspect of innate immune response with and without sepsis. Multiple molecular mechanisms are implicated in causing dysregulated immune response in ethanol exposure with sepsis, but targeted treatments have remained elusive. In this article, we outline the effects of ethanol exposure on various innate immune cell types in general and during sepsis.
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Affiliation(s)
- Sanjoy Roychowdhury
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, 9500 Euclid Avenue, Cleveland, OH 44195, United States
| | - Bishnu Pant
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, 9500 Euclid Avenue, Cleveland, OH 44195, United States
| | - Emily Cross
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, 9500 Euclid Avenue, Cleveland, OH 44195, United States
| | - Rachel Scheraga
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, 9500 Euclid Avenue, Cleveland, OH 44195, United States
- Department of Pulmonary and Critical Care Medicine, Integrated Hospital-Care Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland OH 44195, United States
| | - Vidula Vachharajani
- Department of Inflammation and Immunity, Cleveland Clinic Lerner Research Institute, 9500 Euclid Avenue, Cleveland, OH 44195, United States
- Department of Pulmonary and Critical Care Medicine, Integrated Hospital-Care Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland OH 44195, United States
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Wang D, Xu L, Liu Y, Wang C, Xu Z, Yang F, Li Z, Bai X, Liao Y, Liu X, Wang Y. Identification of ferroptosis-associated genes and potential pharmacological targets in sepsis-induced myopathy. Heliyon 2024; 10:e29062. [PMID: 38601693 PMCID: PMC11004882 DOI: 10.1016/j.heliyon.2024.e29062] [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: 10/31/2023] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/12/2024] Open
Abstract
Background The role of Ferroptosis in the course of sepsis-induced myopathy is yet unclear. The objective of our work is to identify key genes connected with Ferroptosis in sepsis-induced myopathy and investigate possible pharmaceutical targets related to this process. This research aims to provide new insights into the management of sepsis-induced myopathy. Methods We got the GSE13205 dataset from the Gene Expression Omnibus (GEO) and extracted Ferroptosis-associated genes from the FerrDb database. After conducting a functional annotation analysis of these genes, we created a protein-protein interaction network using Cytoscape software to identify important genes. Subsequently, we employed CMap to investigate prospective pharmaceuticals that could target these crucial genes. Results A total of 61 genes that are expressed differently (DEGs) have been found concerning Ferroptosis. These genes are involved in a wide range of biological functions, including reacting to signals from outside the cell and the availability of nutrients, programmed cell death, controlling apoptosis, and responding to peptides, chemical stressors, and hormones. The KEGG pathway study revealed that these pathways are involved in Ferroptosis, autophagy, P53 signaling, PI3K-Akt signaling, mTOR signaling, HIF-1 signaling, endocrine resistance, and different tumorigenic processes. In addition, we created a network that shows the simultaneous expression of important genes and determined the top 10 medications that have the potential to treat sepsis-induced myopathy. Conclusion The bioinformatics research undertaken sheds insight into the probable role of Ferroptosis-associated genes in sepsis-induced myopathy. The identified critical genes show potential as therapeutic targets for treating sepsis-induced myopathy, offering opportunities for the development of tailored medicines.
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Affiliation(s)
- Dongfang Wang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ligang Xu
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yukun Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Chuntao Wang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhikai Xu
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fan Yang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhanfei Li
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiangjun Bai
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yiliu Liao
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiangping Liu
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuchang Wang
- Division of Trauma Surgery, Emergency Surgery & Surgical Critical, Tongji Trauma Center, China
- Department of Emergency and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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Xu Y, Xin J, Sun Y, Wang X, Sun L, Zhao F, Niu C, Liu S. Mechanisms of Sepsis-Induced Acute Lung Injury and Advancements of Natural Small Molecules in Its Treatment. Pharmaceuticals (Basel) 2024; 17:472. [PMID: 38675431 PMCID: PMC11054595 DOI: 10.3390/ph17040472] [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: 03/13/2024] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Sepsis-induced acute lung injury (ALI), characterized by widespread lung dysfunction, is associated with significant morbidity and mortality due to the lack of effective pharmacological treatments available clinically. Small-molecule compounds derived from natural products represent an innovative source and have demonstrated therapeutic potential against sepsis-induced ALI. These natural small molecules may provide a promising alternative treatment option for sepsis-induced ALI. This review aims to summarize the pathogenesis of sepsis and potential therapeutic targets. It assembles critical updates (from 2014 to 2024) on natural small molecules with therapeutic potential against sepsis-induced ALI, detailing their sources, structures, effects, and mechanisms of action.
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Affiliation(s)
- Yaxi Xu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Jianzeng Xin
- School of Life Sciences, Yantai University, Yantai 264005, China;
| | - Yupei Sun
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Xuyan Wang
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Lili Sun
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA;
| | - Feng Zhao
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
| | - Changshan Niu
- College of Pharmacy, University of Utah, Salt Lake City, UT 84108, USA;
| | - Sheng Liu
- School of Pharmacy, Yantai University, Yantai 264005, China; (Y.X.); (Y.S.); (X.W.)
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Sun B, Bai L, Li Q, Sun Y, Li M, Wang J, Shi X, Zhao M. Knockdown of angiopoietin-like 4 suppresses sepsis-induced acute lung injury by blocking the NF-κB pathway activation and hindering macrophage M1 polarization and pyroptosis. Toxicol In Vitro 2024; 94:105709. [PMID: 37820748 DOI: 10.1016/j.tiv.2023.105709] [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: 07/31/2023] [Revised: 09/27/2023] [Accepted: 10/07/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVE Sepsis-induced acute lung injury (ALI) is a life-threatening disease. Macrophage pyroptosis has been reported to exert function in ALI. We aimed to investigate the mechanisms of ANGPTL4-mediated cell pyroptosis in sepsis-induced ALI, thus providing new insights into the pathogenesis and prevention and treatment measures of sepsis-induced ALI. METHODS In vivo animal models and in vitro cell models were established by cecal ligation and puncture (CLP) method and lipopolysaccharide-induced macrophages RAW264.7. ANGPTL4 was silenced in CLP mice or macrophages, followed by the determination of ANGPTL4 expression in bronchoalveolar lavage fluid (BALF) or macrophages. Lung histopathology was observed by H&E staining, with pathological injury scores evaluated and lung wet and dry weight ratio recorded. M1/M2 macrophage marker levels (iNOS/CD86/Arg1), inflammatory factor (TNF-α/IL-6/IL-1β/iNOS) expression in BALF, cell death and pyroptosis, NLRP3 inflammasome, cell pyroptosis-related protein (NLRP3/Cleaved-caspase-1/caspase-1/GSDMD-N) levels, NF-κB pathway activation were assessed by RT-qPCR/ELISA/flow cytometry/Western blot, respectively. RESULTS ANGPTL4 was highly expressed in mice with sepsis-induced ALI, and ANGPTL4 silencing ameliorated sepsis-induced ALI in mice. In vivo, ANGPTL4 silencing repressed M1 macrophage polarization and macrophage pyroptosis in mice with sepsis-induced ALI. In vitro, ANGPTL4 knockout impeded LPS-induced activation and pyroptosis of M1 macrophages and hindered LPS-induced activation of the NF-κB pathway in macrophages. CONCLUSION Knockdown of ANGPTL4 blocks the NF-κB pathway activation, hinders macrophage M1 polarization and pyroptosis, thereby suppressing sepsis-induced ALI.
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Affiliation(s)
- Baisheng Sun
- Medical School of Chinese PLA, Beijing, China; Department of Critical Care Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Lina Bai
- Department of Emergency, The Fifth Medical Centre of PLA General Hospital, Beijing, China
| | - Qinglin Li
- Department of Critical Care Medicine, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Yubo Sun
- The Third Sanatorium, Dalian Rehabilitation and Recuperation Center of Joint Logistic Support Force, Dalian, China
| | - Mei Li
- Department of Radiography, General Hospital of Central Theater Command, PLA, Wuhan 430070, China
| | - Jiazhi Wang
- The 63650 Brigade Hospital, Chinese People's Liberation Army, Xinjiang, China
| | - Xiaoli Shi
- The 63650 Brigade Hospital, Chinese People's Liberation Army, Xinjiang, China
| | - Meng Zhao
- Department of Infection Control, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
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Wang X, Kong W, Yang R, Yang C. 4-octyl itaconate ameliorates ventilator-induced lung injury. Arch Biochem Biophys 2024; 752:109853. [PMID: 38086523 DOI: 10.1016/j.abb.2023.109853] [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: 05/22/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Ventilator-induced lung injury (VILI) disturbs the disordered immune system and causes persistent inflammatory damage. 4-octyl itaconate (OI) is a synthetic cell-permeable itaconate derivative with antioxidant and anti-inflammatory effects. In this study, we assessed whether OI protects against VILI. OI was intraperitoneally injected for three days before mechanical ventilation (MV; 20 ml/kg at 70 breaths/min) for 2 h. Mouse lung vascular endothelial cells (MLVECs) were pretreated with OI (62.5, 125, and 250 μM) prior to cyclic stretch for 4 h. We found that OI attenuated VILI and inflammatory response. OI also increased superoxide dismutase, nuclear factor E2-related factor 2, and heme oxygenase-1 levels, and decreased reactive oxygen species and malondialdehyde levels. Furthermore, OI inhibited the expression of NLR family pyrin domain-containing 3 (NLRP3), caspase-1 p20, apoptosis-associated speck-like protein containing a CARD, and N-terminal fragment of gasdermin D. Therefore, OI attenuates VILI, potentially by suppressing oxidative stress and NLRP3 activation.
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Affiliation(s)
- Xiudan Wang
- Department of Respiratory Medicine, The Third People's Hospital of Jinan, Jinan, Shandong, 250000, PR China
| | - Weijing Kong
- Department of Cardiology, Qingdao Eighth People's Hospital, Qingdao, Shandong, 266100, PR China
| | - Rui Yang
- Department of Cardiology, Qingdao Eighth People's Hospital, Qingdao, Shandong, 266100, PR China
| | - Chunyan Yang
- Department of Pharmacy, Shengli Oilfield Central Hospital, Dongying, 257034, Shandong, PR China.
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Du W, Ren N, Xu Y, Chen X. Programmed cell death 4 governs NLRP3-mediated pyroptosis in septic lung disorders. Mol Biol Rep 2024; 51:77. [PMID: 38183433 DOI: 10.1007/s11033-023-08948-7] [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: 07/19/2023] [Accepted: 11/21/2023] [Indexed: 01/08/2024]
Abstract
INTRODUCTION Sepsis is a pathogenic syndrome of prolonged excessive inflammation and immunosuppression produced by invading pathogens. Programmed cell death 4 (PDCD4) may be implicated in a range of inflammatory lesions, and this study aimed to confirm the involvement of PDCD4 in septic lung injury. MATERIALS AND METHODS Mice and bronchial epithelial 16HBE cells were separately subjected to CLP and LPS to generate in vivo and in vitro models. Following the level of PDCD4 was determined, the impacts of PDCD4 knockdown on mouse lung injury degree, inflammation, apoptosis, and pyroptosis levels were evaluated. Afterward, cells were treated with the NLRP3 agonist, and the influences of NLRP3 activation on the regulations of PDCD4 knockdown were determined. RESULTS PDCD4 was elevated following mice developed septic lung injury, PDCD4 knockdown ameliorated septic lung injury and reduced lung inflammation and apoptosis. Moreover, PDCD4 knockdown suppressed NLRP3-mediated pyroptosis, indicating that PDCD4 also mediated pyroptosis. According to cellular models, NLRP3 activation broke the effects of PDCD4 knockdown on cells. CONCLUSIONS The current study reveals that PDCD4 governs NLRP3-mediated pyroptosis in septic lung injury. PDCD4 is not only related to apoptosis and expands the knowledge of PDCD4 regulation of different cell death modes.
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Affiliation(s)
- Wenjie Du
- Department of Emergency Internal Medicine, the Affiliated Hospital of Qingdao University, 1677 Wutaishan Road, Qingdao, 266000, Shandong, China
| | - Na Ren
- Department of Emergency Internal Medicine, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao, 266033, Shandong, China
| | - Yan Xu
- Quality Control Department, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao, 266033, Shandong, China
| | - Xiao Chen
- Department of Emergency Internal Medicine, the Affiliated Hospital of Qingdao University, 1677 Wutaishan Road, Qingdao, 266000, Shandong, China.
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Mulla J, Katti R, Scott MJ. The Role of Gasdermin-D-Mediated Pryoptosis in Organ Injury and Its Therapeutic Implications. Organogenesis 2023; 19:2177484. [PMID: 36967609 PMCID: PMC9980590 DOI: 10.1080/15476278.2023.2177484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Gasdermin-D (GSDMD) belongs to the Gasdermin family (GSDM), which are pore-forming effector proteins that facilitate inflammatory cell death, also known as pyroptosis. This type of programmed cell death is dependent on inflammatory caspase activation, which cleaves gasdermin-D (GSDMD) to form membrane pores and initiates the release of pro-inflammatory cytokines. Pyroptosis plays an important role in achieving immune regulation and homeostasis within various organ systems. The role of GSDMD in pyroptosis has been extensively studied in recent years. In this review, we summarize the role of GSDMD in cellular and organ injury mediated by pyroptosis. We will also provide an outlook on GSDMD therapeutic targets in various organ systems.
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Affiliation(s)
- Joud Mulla
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rohan Katti
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Melanie J. Scott
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Jiang Y, Gao S, Chen Z, Zhao X, Gu J, Wu H, Liao Y, Wang J, Chen W. Pyroptosis in septic lung injury: Interactions with other types of cell death. Biomed Pharmacother 2023; 169:115914. [PMID: 38000360 DOI: 10.1016/j.biopha.2023.115914] [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: 09/15/2023] [Revised: 11/09/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023] Open
Abstract
Sepsis is a life-threatening systemic inflammatory response syndrome caused by the host imbalanced response to infection. Lung injury is the most common complication of sepsis and one of the leading causes of patient death. Pyroptosis is a specific programmed cell death characterized by the release of inflammatory cytokines. Appropriate pyroptosis can reduce tissue damage and exert a protective effect against infection during sepsis. However, overactivated pyroptosis results in massive cell death, leading to septic shock, multiple organ dysfunction syndrome, and even an increased risk of secondary infection. Recent studies suggest that pyroptosis can interact with and cross-regulate other types of cell death programs to establish a complex network of cell death, which participates in the occurrence and development of septic lung injury. This review will focus on the interactions between pyroptosis and other types of cell death, including apoptosis, necroptosis, PANoptosis, NETosis, autophagy, and ferroptosis, to summarize the role of pyroptosis in sepsis-induced lung injury, and will discuss the potential therapeutic strategies of targeting pyroptosis during sepsis treatment.
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Affiliation(s)
- Yi Jiang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China; Department of Anesthesiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China; Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Shenjia Gao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China; Department of Anesthesiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China; Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Zhaoyuan Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China; Department of Anesthesiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China; Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Xiaoqiang Zhao
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Institutes of Integrative Medicine, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Jiahui Gu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China; Department of Anesthesiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China; Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Han Wu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China; Department of Anesthesiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China; Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China
| | - Yun Liao
- Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Jun Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Science, Institutes of Integrative Medicine, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai 200032, China.
| | - Wankun Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Anesthesiology, Shanghai Geriatric Medical Center, Shanghai 201104, China; Department of Anesthesiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201799, China; Shanghai Key Laboratory of Perioperative Stress and Protection, Shanghai 200032, China.
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Zeng T, Song Y, Qi S, Zhang R, Xu L, Xiao P. A comprehensive review of vine tea: Origin, research on Materia Medica, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116788. [PMID: 37343650 DOI: 10.1016/j.jep.2023.116788] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/24/2023] [Accepted: 06/13/2023] [Indexed: 06/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vine tea is a popular folk tea that has been consumed in China for more than 1200 years. It is often used in ethnic medicine by ethnic groups in southwest China with at least 35 aliases in 10 provinces. In coastal areas, vine tea is mostly used to treat heatstroke, aphtha, aphonia, toothache, etc. In contrast, in the southwest inland regions, vine tea is mostly used to clear away heat and toxic materials, antiphlogosis and relieving sore-throat, lowering blood pressure and lipid levels, and alleviating fatigue. Three main species have been used as the source of vine tea, Nekemias grossedentata, Nekemias cantonensis and Nekemias megalophylla. Among them, the leaves of Nekemias grossedentata were considered as new food resource in complicance with regulations, according to the Food Safety Standards published by the Monitoring and Evaluation Department of the National Health and Family Planning Commission in China. AIM OF THE STUDY At present, the comprehensively summary of Materia Medica on the history and source of vine tea is currently unavailable. The current article summed up the Materia Medica, species origin and pharmacological effects of all 3 major species used in vine tea to fill the knowledge gaps. We also aim to provide a reference for future research on historical textual, resource development and medicinal utilization of vine tea. MATERIALS AND METHODS Adhering to the literature screening methodology outlined by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), this review encompasses 148 scholarly research papers from three database, paper ancient books, local chronicles and folklore through field investigations. We then comprehensively summarized and discussed research progresses in scientific and application studies of vine tea. RESULTS The historical records indicated that vine tea could have been used as early as Southern and Northern Dynasties (AC 420-589). Nekemias grossedentata, Nekemias cantonensis and Nekemias megalophylla, were used to considered as vine tea in the ethnic medicine. The main phytochemicals found in three plants are flavonoids, polyphenols and terpenoids, among which dihydromyricetin (DHM) is the most important and most studied active substance. The key words "Ampelopsis grossedentata" (Synonym of Nekemias grossedentata) and "dihydromyricetin/DHM" showed the highest frequency over the last 27 year based on the research trend analysis. And the ethnopharmacology studies drawn the main activities of vine tea are antioxidant, antibacterial, hepatoprotective, neuroprotective and anti-atherosclerosis activities. CONCLUSIONS This review systematically summarized and discussed vine tea from the following five aspects, history, genetic relationship, phytochemistry, research trend and ethnopharmacology. Vine tea has a long historical usage in Chinese ethnic medicine. Its outstanding therapeutic efficacies have attracted extensive attention in other places in the world at present. Nekemias cantonensis and Nekemias megalophylla are quite similar to Nekemias grossedentata in terms of many aspects. However, the current research has a narrow focus on mainly Nekemias grossedentata and DHM. We propose that future studies could be carried out to determine the synergistic effect of multi-components and multi-targets of vine tea including all 3 species to provide valuable knowledge.
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Affiliation(s)
- Tiexin Zeng
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Yanjun Song
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Shunyao Qi
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Ruyue Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Lijia Xu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
| | - Peigen Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, 100193, China.
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Gao J, Chen H, Zhang Y, Yu S, Wu Y, Wang Q, Yu Z. METTL14 knockdown inhibits the pyroptosis in the sepsis-induced acute lung injury through regulating the m6A modification of NLRP3. Exp Lung Res 2023; 49:220-230. [PMID: 38047519 DOI: 10.1080/01902148.2023.2288182] [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: 08/12/2023] [Accepted: 11/17/2023] [Indexed: 12/05/2023]
Abstract
Background: Sepsis has become one of the main factors inducing the development of acute lung injury (ALI) in clinical practice. Currently, inhibiting the activation of NLRP3 mediated pyroptosis is the target of multiple drugs in the treatment of sepsis induced ALI. This study aimed to explore the effects of METTL14 on the pyroptosis in the sepsis induced ALI progression.Methods: LPS-stimulated A549 cells and cecal ligation and puncture (CLP)-treated mice were used to establish the ALI model in vitro and in vivo. Then, the cell viability was measured by CCK-8 assay. ELISA kits were used to determine the IL-18 and IL-1β contents. Pyroptosis rate was tested by flow cytometry. M6A dot blot was conducted to analyze the global m6A levels and MeRIP assay was performed to detect the m6A levels of NLRP3. The relationship between METTL14 and NLRP3 was confirmed by RIP and dual-luciferase report assays.Results: The global m6A levels were significantly increased in the LPS-stimulated A549 cells and CLP-treated mice. METTL14 knockdown decreased the cell viability, IL-18 and IL-1β contents, and pyroptosis rate of the LPS-stimulated A549 cells. Furthermore, the increase of pyroptosis-related proteins in LPS-stimulated A549 cells was significantly decreased after METTL14 knockdown. Additionally, METTL14 knockdown decreased the m6A and mRNA levels of NLRP3, and NLRP3 overexpression reversed the effects of METTL14 knockdown on the pyroptosis in the LPS-stimulated A549 cells. In CLP-treated mice, METTL14 knockdown relieved the injury and decreased the IL-18 and IL-1β contents in the lung tissues, serum and bronchoalveolar lavage fluid.Conclusion: This study demonstrated that METTL14 knockdown inhibited the pyroptosis in the sepsis-induced ALI progression through decreasing the NLRP3 levels dependent on m6A methylation modification.
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Affiliation(s)
- Jianting Gao
- Department of Intensive Care Unit, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Huizhen Chen
- Department of Intensive Care Unit, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Yong Zhang
- Department of Geriatric Medicine, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Sun Yu
- Department of EICU, Changshu Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
| | - Yiyi Wu
- Department of Intensive Care Unit, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Qiuyan Wang
- Department of Intensive Care Unit, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zhenfei Yu
- Department of Intensive Care Unit, Hangzhou TCM Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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13
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Zhou KL, He YR, Liu YJ, Liu YM, Xuan LZ, Gu ZY, He HY, Ju MJ. IL-17A/p38 Signaling Pathway Induces Alveolar Epithelial Cell Pyroptosis and Hyperpermeability in Sepsis-Induced Acute Lung Injury by Activating NLRP3 Inflammasome. Adv Biol (Weinh) 2023; 7:e2300220. [PMID: 37607110 DOI: 10.1002/adbi.202300220] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/20/2023] [Indexed: 08/24/2023]
Abstract
Sepsis is a syndrome with poor prognosis. Nucleotide-binding domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome and T helper 17 (Th17) cells are involved in the pathogenesis of inflammatory diseases. This study aims to explore their roles and underlying mechanisms in sepsis. The blood and bronchoalveolar lavage fluid are collected from sepsis patients and healthy donors. A sepsis mice model is established by cecal ligation puncture (CLP). The contents of cytokines are detected by ELISA. The amounts of Th17 cells, IL-17A, IL-1β, IL-18, and lipopolysaccharide is significantly elevated in sepsis patients. The increased differentiation of Th17 cells can promote lung cell pyroptosis and induce hyperpermeability via activating NLRP3 inflammasome and p38 pathway. The inhibitors targeting Th17 cells, NLRP3 inflammasome, and p38 pathway can significantly alleviate lung injury in sepsis mice. Th17 cells can secrete IL-17A to activate NLRP3 inflammasome via p38 signaling pathway, which contributes to the development of sepsis-induced acute lung injury.
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Affiliation(s)
- Kun Lin Zhou
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University (XiaMen Branch), No. 668, JinHu Rd, XiaMen, 361015, P. R. China
| | - Yi Ran He
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
| | - Yu Jing Liu
- Department of Nursing, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
| | - Yi Mei Liu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
| | - Li Zhen Xuan
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
| | - Zhun Yong Gu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
| | - Hong Yu He
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
| | - Min Jie Ju
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180, Fengling Rd, Shanghai, 200032, P. R. China
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Liu M, Wang Q, Xu W, Wu J, Xu X, Yang H, Li X. Natural products for treating cytokine storm-related diseases: Therapeutic effects and mechanisms. Biomed Pharmacother 2023; 167:115555. [PMID: 37776639 DOI: 10.1016/j.biopha.2023.115555] [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: 07/25/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND A cytokine storm (CS) is a rapidly occurring, complex, and highly lethal systemic acute inflammatory response induced by pathogens and other factors. Currently, no clinical therapeutic drugs are available with a significant effect and minimal side effects. Given the pathogenesis of CS, natural products have become important resources for bioactive agents in the discovery of anti-CS drugs. PURPOSE This study aimed to provide guidance for preventing and treating CS-related diseases by reviewing the natural products identified to inhibit CS in recent years. METHODS A comprehensive literature review was conducted on CS and natural products, utilizing databases such as PubMed and Web of Science. The quality of the studies was evaluated and summarized for further analysis. RESULTS This study summarized more than 30 types of natural products, including 9 classes of flavonoids, phenols, and terpenoids, among others. In vivo and in vitro experiments demonstrated that these natural products could effectively inhibit CS via nuclear factor kappa-B, mitogen-activated protein kinase, and Mammalian target of rapamycin (mTOR) signaling pathways. Moreover, the enzyme inhibition assays revealed that more than 20 chemical components had the potential to inhibit ACE2, 3CL-protease, and papain-like protease activity. The experimental results were obtained using advanced technologies such as biochips and omics. CONCLUSIONS Various natural compounds in traditional Chinese medicine (TCM) extracts could directly or indirectly inhibit CS occurrence, potentially serving as effective drugs for treating CS-related diseases. This study may guide further exploration of the therapeutic effects and biochemical mechanisms of natural products on CS.
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Affiliation(s)
- Mei Liu
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qing Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wanai Xu
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, China
| | - Jingyu Wu
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, China
| | - Xingyue Xu
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Hongjun Yang
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Xianyu Li
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; China Academy of Chinese Medical Sciences, Beijing 100700, China.
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15
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Wang C, Liu Y, Zhang Y, Wang D, Xu L, Li Z, Bai X, Wang Y. Targeting NAT10 protects against sepsis-induced skeletal muscle atrophy by inhibiting ROS/NLRP3. Life Sci 2023; 330:121948. [PMID: 37467885 DOI: 10.1016/j.lfs.2023.121948] [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: 05/10/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023]
Abstract
AIMS To identify N-acetyltransferase 10 (NAT10) and its downstream signaling pathways in myocytes and skeletal muscle, and to investigate its role in inflammation-induced muscle atrophy. MATERIALS AND METHODS Cecal ligation and puncture models were used to induce sepsis in C57BL/6 mice, which were treated with either a NAT10 inhibitor or a control agent. The therapeutic effect of NAT10 inhibitor was investigated by evaluating the mass, morphology, and molecular characteristics of mouse skeletal muscle. C2C12 cells were stimulated with LPS, and the expression of the NAT10 gene, downstream protein content, and atrophy phenotype were analyzed using a NAT10 inhibitor, to further explore the atrophic effect of NAT10 on C2C12 differentiated myotubes. RESULTS Gene set enrichment analysis revealed that NAT10 expression was elevated in the Lateral femoris muscle of patients with ICUAW. In vitro and in vivo experiments showed that sepsis or LPS induced the upregulation of NAT10 expression in skeletal muscles and C2C12 myotubes. Skeletal muscle mass, tissue morphology, gene expression, and protein content were associated with atrophic response in sepsis models. Remodelin ameliorated the LPS-induced skeletal muscle weight loss, as well as muscular atrophy, and improved survival. Remodelin reversed the atrophy program that was induced by inflammation through the downregulation of the ROS/NLRP3 pathway, along with the inhibition of the expression of MuRF1 and Atrogin-1. CONCLUSION NAT10 is closely related to skeletal muscle atrophy during sepsis. Remodelin improves the survival rate of mice by improving the systemic inflammatory response and skeletal muscle atrophy by downregulating the ROS/NLRP3 signaling pathway.
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Affiliation(s)
- Chuntao Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Yukun Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Yongsheng Zhang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Dongfang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Ligang Xu
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Zhanfei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Xiangjun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
| | - Yuchang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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Miao RF, Tu J. LncRNA CDKN2B-AS1 interacts with LIN28B to exacerbate sepsis-induced acute lung injury by inducing HIF-1α/NLRP3-mediated pyroptosis. Kaohsiung J Med Sci 2023; 39:883-895. [PMID: 37265187 DOI: 10.1002/kjm2.12697] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/23/2023] [Accepted: 05/02/2023] [Indexed: 06/03/2023] Open
Abstract
Sepsis-associated acute lung injury (ALI) is a life-threatening condition in intensive care units with high mortality. LncRNAs have been confirmed to participate in the underlying pathogenesis of septic ALI. This study investigated the biological functions of lncRNA CDKN2B-AS1 in septic ALI and its potential mechanism.BEAS-2B cells were challenged with lipopolysaccharide (LPS) and mice were subjected to caecal ligation and puncture (CLP) to induce septic ALI in vitro and in vivo. The expression levels of CDKN2B-AS1, LIN28B, HIF-1α, and pyroptosis-related molecules were assessed by qRT-PCR or Western blotting. The production of IL-1β and IL-18 was detected by ELISA. BEAS-2B cell pyroptosis was examined by flow cytometry. The interaction between LIN28B and CDKN2B-AS1/HIF-1α was validated by RIP and RNA pull-down assays. Colocalization of CDKN2B-AS1 and LIN28B was observed by FISH. ALI was determined by HE staining, the lung wet-to-dry (W/D) weight ratio, inflammatory cell numbers, and total protein concentration in bronchoalveolar lavage fluid (BALF). Caspase-1 expression in the lung tissues was examined by immunohistochemical staining.CDKN2B-AS1 was upregulated in BEAS-2B cells after LPS stimulation. CDKN2B-AS1 knockdown inhibited pyroptosis in LPS-exposed BEAS-2B cells in vitro and the lung tissues of septic mice in vivo. Mechanistically, CDKN2B-AS1 interacted with LIN28B to enhance HIF-1α stability. Rescue experiments showed that HIF-1α overexpression counteracted the inhibitory effect of sh-CDKN2B-AS1 on LPS-induced pyroptosis. CDKN2B-AS1 bound to LIN28B to trigger NLRP3-mediated pyroptosis by stabilizing HIF-1α, which promoted sepsis-induced ALI. CDKN2B-AS1 might be a novel therapeutic target for this disease.
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Affiliation(s)
- Run-Feng Miao
- Department of Emergency, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu Province, People's Republic of China
| | - Jing Tu
- Department of Emergency, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu Province, People's Republic of China
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Wu J, Lan Y, Wu J, Zhu K. Sepsis-Induced Acute Lung Injury Is Alleviated by Small Molecules from Dietary Plants via Pyroptosis Modulation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12153-12166. [PMID: 37537751 DOI: 10.1021/acs.jafc.2c08926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Sepsis-induced acute respiratory distress syndrome (ARDS) has high morbidity and mortality, and it has three major pathogeneses, namely alveolar-capillary barrier destruction, elevated gut permeability, and reduced neutrophil extracellular traps (NETS), all of which are pyroptosis-involved. Due to limitations of current agents like adverse reaction superposition, inevitable drug resistance, and relatively heavier financial burden, naturally extracted small-molecule compounds have a broad market even though chemically modified drugs have straightforward efficacy. Despite increased understanding of the molecular biology and mechanism underlying sepsis-induced ARDS, there are no specific reviews concerning how small molecules from dietary plants alleviate sepsis-induced acute lung injury (ALI) via regulating pyroptotic cell death. Herein, we traced and reviewed the molecular underpinnings of sepsis-induced ALI with a focus on small-molecule compounds from dietary plants, the top three categories of which are respectively flavonoids and flavone, terpenoids, and polyphenol and phenolic acids, and how they rescued septic ALI by restraining pyroptosis.
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Affiliation(s)
- Jiasi Wu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yuejia Lan
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611130, China
| | - Jinghan Wu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Keli Zhu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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Matouk AI, Awad EM, El-Tahawy NFG, El-Sheikh AAK, Anter A. Dihydromyricetin Modulates Nrf2 and NF-κB Crosstalk to Alleviate Methotrexate-Induced Lung Toxicity. Pharmaceuticals (Basel) 2023; 16:ph16040481. [PMID: 37111238 PMCID: PMC10145727 DOI: 10.3390/ph16040481] [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: 02/07/2023] [Revised: 03/03/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND Methotrexate (MTX) is an effective anticancer, anti-inflammatory, and immunomodulatory agent. However, it induces a serious pneumonitis that leads to irreversible fibrotic lung damage. This study addresses the protective role of the natural flavonoid dihydromyricetin (DHM) against MTX-induced pneumonitis via modulation of Nrf2/NF-κB signaling crosstalk. METHODS Male Wistar rats were divided into 4 groups: control, which received the vehicle; MTX, which received a single MTX (40 mg/kg, i.p) at day 9 of the experiment; (MTX + DHM), which received oral DHM (300 mg/kg) for 14 days and methotrexate (40 mg/kg, i.p) on the 9th day; and DHM, which received DHM (300 mg/kg, p.o) for 14 days. RESULTS Lung histopathological examination and scoring showed a decline in MTX-induced alveolar epithelial damage and decreased inflammatory cell infiltration by DHM treatment. Further, DHM significantly alleviated the oxidative stress by decreasing MDA while increasing GSH and SOD antioxidant levels. Additionally, DHM suppressed the pulmonary inflammation and fibrosis through decreasing levels of NF-κB, IL-1β, and TGF-β1 while promoting the expression of Nrf2, a positive regulator of antioxidant genes, and its downstream modulator, HO-1. CONCLUSION This study identified DHM as a promising therapeutic target against MTX-induced pneumonitis via activation of Nrf2 antioxidant signaling while suppressing the NF-κB mediated inflammatory pathways.
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Affiliation(s)
- Asmaa I Matouk
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, El-Minia 61511, Egypt
| | - Eman M Awad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, El-Minia 61511, Egypt
| | - Nashwa F G El-Tahawy
- Department of Histology and Cell Biology, Faculty of Medicine, Minia University, El-Minia 61511, Egypt
| | - Azza A K El-Sheikh
- Basic Health Sciences Department, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Aliaa Anter
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, El-Minia 61511, Egypt
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Inhibition of DDX3X alleviates persistent inflammation, immune suppression and catabolism syndrome in a septic mice model. Int Immunopharmacol 2023; 117:109779. [PMID: 36806038 DOI: 10.1016/j.intimp.2023.109779] [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: 11/11/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 02/22/2023]
Abstract
OBJECTIVE DDX3X is involved in various pathological processes such as infection, immunity and cell death. This study aimed to investigate the effect of RK-33, a specific inhibitor of DDX3X, on the progression of sepsis to persistent inflammation, immune suppression and catabolism syndrome(PICS). METHODS The septic mice model was established using caecal ligation and perforation (CLP). The mice were randomly divided into four groups: sham group, sham + RK-33 group (20 mg/kg, intraperitoneal injection, once a day), CLP group and CLP + RK-33 group (20 mg/kg, intraperitoneal injection, once a day). The number of inflammatory cells in the peripheral blood, spleen and bone marrow was calculated, and inflammatory cytokines were detected using an enzyme-linked immunosorbent assay. The septic mice's body weight and skeletal muscle mass were measured, and skeletal muscle tissues were examined using eosin staining. Western blotting was performed to detect the expression levels of MuRF1, atrogin1 and NLRP3 in the skeletal muscle of septic mice. Additionally, reactive oxidative species, superoxide dismutase and malondialdehyde were measured using commercial kits. RESULTS RK-33 reduced inflammatory cell counts and cytokine levels in CLP mice, ameliorated the decline in CD4 and CD8 T cells and prevented the loss of body weight and skeletal muscle mass in septic mice. Additionally, RX-33 reduced oxidative stress in the skeletal muscle of septic mice. CONCLUSION In the established sepsis mouse model, RK-33 alleviated inflammation and oxidative stress, ameliorated CLP-induced immunosuppression and skeletal muscle atrophy and improved survival. These findings suggest that RK-33 could be a novel potential therapeutic agent for preventing the progression of sepsis to PICS.
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Liu J, Wu J, Qiao C, He Y, Xia S, Zheng Y, Lv H. Impact of chronic cold exposure on lung inflammation, pyroptosis and oxidative stress in mice. Int Immunopharmacol 2023; 115:109590. [PMID: 36577159 DOI: 10.1016/j.intimp.2022.109590] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/30/2022] [Accepted: 12/09/2022] [Indexed: 12/28/2022]
Abstract
Chronic cold exposure, which is the main inducer of lung diseases in high latitudes, affects production efficiency and restricts the development of aquaculture. Although the relationship between cold exposure and susceptibility to the lungs is widely accepted, but the influence between them has not been fully explored. The aim of this study is to understand the underlying mechanism. In the present study, the mice, which are used to establish cold stress (CS)-induced lung injury model, are exposed to cold temperature (4 °C) for 3 h each day for 4 weeks. The results indicate that the expression of heat shock protein 70 (HSP70) is augmented by cold exposure. In addition, chronic cold exposure aggravate the formation of malondialdehyde (MDA) and lead to a significant decrease in the contents of micrococcus catalase (CAT) and glutathione (GSH). Moreover, chronic cold exposure significantly exacerbates the expression of inflammation- and apoptosis-related proteins. The activation of Bax and caspase-3 are significantly augmented. However, that of Bcl-2 is decreased. These results are different from those in room team. The results show that chronic cold exposure plays an important roles in the activation of multiple signaling pathways, such as pyroptosis-related, inflammation-related and oxidative stress-regulated signaling pathways. In summary, these investigations support that chronic cold exposure increase the risk of lung injury by activating inflammation, oxidative stress and pyroptosis.
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Affiliation(s)
- Jiahe Liu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Jingjing Wu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Chunyu Qiao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yuxi He
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Shijie Xia
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yuwei Zheng
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
| | - Hongming Lv
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang Bayi, China; Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Heilongjiang Provincial Key Laboratory of Prevention and Control of Bovine Diseases, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
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21
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He W, Dong H, Wu C, Zhong Y, Li J. The role of NLRP3 inflammasome in sepsis: A potential therapeutic target. Int Immunopharmacol 2023; 115:109697. [PMID: 37724951 DOI: 10.1016/j.intimp.2023.109697] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/22/2023]
Abstract
Sepsis is the host immune imbalance following infection and leads to organ dysfunction, with highly complicated pathophysiology. To date, sepsis still lacks effective therapies with high mortality rates. Recently, numerous studies have highlighted the potential of NLRP3 inflammasome as a therapeutic target during sepsis. NLRP3 inflammasome is a protein complex that could induce the activation of caspase-1 and the following release of pro-inflammatory cytokines such as IL-1β and IL-18. It was demonstrated that NLRP3 inflammasome was involved in the development and progression of sepsis. In contrast, inhibition of NLRP3 inflammasome activation could mitigate the inflammatory response, protect organ function, and improve outcomes and mortality. This paper illustrated the activation pathways of the NLRP3 inflammasome and its possible molecular mechanisms in the pathophysiology of sepsis. Meanwhile, the beneficial effects of inhibiting NLRP3 activation in sepsis-related organ damage were also presented. In addition, the diverse role of NLRP3 inflammasome in bacterial clearance was addressed. Of note, several herbal extracts targeting NLRP3 inflammasome in the treatment of sepsis were emphasized. We hope that this paper could provide a basis for further drug research targeting NLRP3 inflammasome.
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Affiliation(s)
- Wenfang He
- Department of Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Haiyun Dong
- Department of Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Chenfang Wu
- Department of Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yanjun Zhong
- Department of Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jinxiu Li
- Department of Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.
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22
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Liu Y, Wang D, Li T, Xu L, Li Z, Bai X, Tang M, Wang Y. Melatonin: A potential adjuvant therapy for septic myopathy. Biomed Pharmacother 2023; 158:114209. [PMID: 36916434 DOI: 10.1016/j.biopha.2022.114209] [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: 11/28/2022] [Revised: 12/24/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Septic myopathy, also known as ICU acquired weakness (ICU-AW), is a characteristic clinical symptom of patients with sepsis, mainly manifested as skeletal muscle weakness and muscular atrophy, which affects the respiratory and motor systems of patients, reduces the quality of life, and even threatens the survival of patients. Melatonin is one of the hormones secreted by the pineal gland. Previous studies have found that melatonin has anti-inflammatory, free radical scavenging, antioxidant stress, autophagic lysosome regulation, mitochondrial protection, and other multiple biological functions and plays a protective role in sepsis-related multiple organ dysfunction. Given the results of previous studies, we believe that melatonin may play an excellent regulatory role in the repair and regeneration of skeletal muscle atrophy in septic myopathy. Melatonin, as an over-the-counter drug, has the potential to be an early, complementary treatment for clinical trials. Based on previous research results, this article aims to critically discuss and review the effects of melatonin on sepsis and skeletal muscle depletion.
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Affiliation(s)
- Yukun Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Dongfang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Tianyu Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Ligang Xu
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Zhanfei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Xiangjun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Manli Tang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
| | - Yuchang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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23
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Liu Y, Zhang Y, Liu Q, Li T, Wang W, Li H, Yang F, Gao W, Li Z, Bai X, Wang Y. Inhibition of DDX3X ameliorated CD4 + T cells pyroptosis and improves survival in septic mice. Mol Immunol 2023; 154:54-60. [PMID: 36603305 DOI: 10.1016/j.molimm.2022.12.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/18/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023]
Abstract
Over-expression of DDX3X mRNA is associated with T cell loss in septic patients. This study aimed to investigate the molecular mechanism of DDX3X on T cell reduction in sepsis. The sepsis model was established using lipopolysaccharide stimulation in vitro and cecal ligation and puncture (CLP) surgery in vivo. Results showed that the expression of DDX3X was significantly upregulated in CD4+ T cells in sepsis. RK-33, the inhibitor of DDX3X, was found to dramatically increase CD4+ T cell counts and prolong the survival rate of mice with sepsis. The results also showed that the expression of caspase-1/GSDMD in CD4+ T cells was significantly increased in vitro and in vivo, and RK-33 can substantially reduce CD4+ T cell pyroptosis through inhibiting NLRP3/caspase-1/GSDMD. Globally, our results suggest that DDX3X is involved in the loss of CD4+ T cells partly through activating the pyroptotic pathway during sepsis, which may provide potential targets for therapeutic interventions in this highly lethal disease.
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Affiliation(s)
- Yukun Liu
- Department of Plastic and Cosmetic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yongsheng Zhang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Qinxin Liu
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Tianyu Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Wei Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Hui Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Fan Yang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Wei Gao
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Zhanfei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Xiangjun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Yuchang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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24
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Inhibition of PFKFB Preserves Intestinal Barrier Function in Sepsis by Inhibiting NLRP3/GSDMD. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8704016. [PMID: 36589684 PMCID: PMC9803577 DOI: 10.1155/2022/8704016] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022]
Abstract
Intestinal barrier dysfunction is associated with the occurrence and development of sepsis. Further, aerobic glycolysis plays an essential role in inflammation and cell death. This study is aimed at investigating the protective effect and mechanism of PFKFB3 inhibition on intestinal barrier dysfunction in sepsis mice. Sepsis mouse models were established by cecal ligation and puncture (CLP) in wild-type mice and Gsdmd-/- mice. The results showed that the expression of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) in the small intestines was significantly upregulated in sepsis. 3-(3-Pyridinyl)-1-(4-pyridinyl)-2-propen-1-one (3PO), the specific inhibitor of PFKFB3, and Gsdmd gene knockout significantly inhibited the inflammatory response and cell death caused by sepsis, thus alleviating intestinal damage and barrier dysfunction. 3PO was also shown to significantly inhibit oxidative stress and NLRP3/caspase-1/GSDMD-dependent cell pyroptosis in the small intestines. The in vitro studies revealed that 3PO reduced NLRP3/caspase-1/GSDMD-dependent cell pyroptosis by inhibiting ROS. Taken together, our results suggest that PFKFB3 is involved in inflammation, oxidative stress, and pyroptosis during sepsis and enhances intestinal damage, which may provide important clues about the potential targets to be exploited in this highly lethal disease.
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Nie H, Ji T, Fu Y, Chen D, Tang Z, Zhang C. Molecular mechanisms and promising role of dihydromyricetin in cardiovascular diseases. Physiol Res 2022. [DOI: 10.33549/physiolres.934915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Vine tea, a Chinese herbal medicine, is widely used in traditional Asian medicine to treat common health problems. Dihydromyricetin (DMY) is the main functional flavonoid compound extracted from vine tea. In recent years, preclinical studies have focused on the potential beneficial effects of dihydromyricetin, including glucose metabolism regulation, lipid metabolism regulation, neuroprotection, and anti-tumor effects. In addition, DMY may play a role in cardiovascular disease by resisting oxidative stress and participating in the regulation of inflammation. This review is the first review that summaries the applications of dihydromyricetin in cardiovascular diseases, including atherosclerosis, myocardial infarction, myocardial hypertrophy, and diabetic cardiomyopathy. We also clarified the underlying mechanisms and signaling pathways involved in the above process. The aim of this review is to provide a better understanding and quick overview for future researches of dihydromyricetin in the field of cardiovascular diseases, and more detailed and robust researches are needed for evaluation and reference.
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Affiliation(s)
| | | | | | | | | | - C Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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26
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Huang J, Chen C, Xie J, Zhai K, Wei S, Cheng X, Zhang R. Oroxin A ameliorates the oleic acid-induced A549 cell injury through the suppression of pyroptosis and degradation of alveolar surfactant. AN ACAD BRAS CIENC 2022; 94:e20211400. [PMID: 36477822 DOI: 10.1590/0001-3765202220211400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 05/10/2022] [Indexed: 12/03/2022] Open
Abstract
The destruction of the pulmonary epithelial barrier in acute respiratory distress syndrome is caused by the damage of the alveolar epithelial cells. Oroxin A is an effective flavonoid component derived from the medicinal plant Oroxylum indicum (L.) Kurz. In this study, the oleic acid (OA)-induced A549 cell injury model was established in vitro to explore the protective mechanism of Oroxin A. The experiment was divided into the following groups: control, OA and OA + Oroxin A group. The OA-induced A549 cell injury was dose (time)-dependent and was detected by the CCK-8 assay. The protein and mRNA expression levels associated with pyroptosis are detected by Western blotting and RT-qPCR. After Oroxin A treatment, the levels of IL-1β, IL-18 and LDH released were significantly lower than the OA group. In terms of pyroptosis, Oroxin A can inhibit the expression of pyroptosis-related protein and mRNA. Significantly, the surfactant protein C (SPC) level in the OA + Oroxin A group was significantly higher than that in the OA group. The treatment with Oroxin A alleviates the OA-induced injury in the A549 cells, and its mechanism may be related to the inhibition of A549 cells pyroptosis and prevention of the degradation of the SPC.
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Affiliation(s)
- Jian Huang
- Department of Cardiac Surgery, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou 730030, Gansu, People's Republic of China
| | - Chen Chen
- Department of Anesthesiology, The Fourth Affiliated Hospital of Anhui Medical University, No 100 Huaihai Avenue, Hefei 230001, Anhui, People's Republic of China
| | - Jianqin Xie
- Department of Anesthesiology, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou 730030, Gansu, People's Republic of China
| | - Kerong Zhai
- Department of Cardiac Surgery, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou 730030, Gansu, People's Republic of China
| | - Shilin Wei
- Department of Cardiac Surgery, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou 730030, Gansu, People's Republic of China
| | - Xingdong Cheng
- Department of Cardiac Surgery, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou 730030, Gansu, People's Republic of China
| | - Rongzhi Zhang
- Department of Anesthesiology, Lanzhou University Second Hospital, No. 82, Cuiyingmen, Lanzhou 730030, Gansu, People's Republic of China
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27
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Memantine nitrate MN-08 suppresses NLRP3 inflammasome activation to protect against sepsis-induced acute lung injury in mice. Biomed Pharmacother 2022; 156:113804. [DOI: 10.1016/j.biopha.2022.113804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/28/2022] [Accepted: 10/02/2022] [Indexed: 11/02/2022] Open
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28
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Tang H, Li H, Yang Y, Tang M, Li Z, Bai X, Wang Y. Ibrutinib protects against acute lung injury via inhibiting NLRP3/Caspase-1 in septic mice model. Mol Immunol 2022; 152:232-239. [DOI: 10.1016/j.molimm.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/18/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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29
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Matouk AI, Awad EM, El-Tahawy NF, El-Sheikh AA, Waz S. Dihydromyricetin alleviates methotrexate-induced hepatotoxicity via suppressing the TLR4/NF-κB pathway and NLRP3 inflammasome/caspase 1 axis. Biomed Pharmacother 2022; 155:113752. [DOI: 10.1016/j.biopha.2022.113752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/13/2022] [Accepted: 09/23/2022] [Indexed: 11/02/2022] Open
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30
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Sun J, Li Y. Pyroptosis and respiratory diseases: A review of current knowledge. Front Immunol 2022; 13:920464. [PMID: 36248872 PMCID: PMC9561627 DOI: 10.3389/fimmu.2022.920464] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Pyroptosis is a relatively newly discovered programmed cell death accompanied by an inflammatory response. In the classical view, pyroptosis is mediated by caspases-1,-4,-5,-11 and executed by GSDMD, however, recently it was demonstrated that caspase-3 and-8 also participate in the process of pyroptosis, by cleaving GSDMD/E and GSDMD respectively. Different from autophagy and apoptosis, many pores are formed on the cell membrane during pyroptosis, which makes the cell membrane lose its integrity, eventually leading to the release of cytokines interleukin(IL)-1β and IL-18. When the body is infected with pathogens or exposed to some stimulations, pyroptosis could play an immune defense role. It is found that pyroptosis exists widely in infectious and inflammatory respiratory diseases such as acute lung injury, bronchial dysplasia, chronic obstructive pulmonary disease, and asthma. Excessive pyroptosis may accompany airway inflammation, tissue injury, and airway damage, and induce an inflammatory reaction, leading to more serious damage and poor prognosis of respiratory diseases. This review summarizes the relationship between pyroptosis and related respiratory diseases.
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31
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XueFu ZhuYu Decoction Alleviates Cardiopulmonary Bypass-Induced NLRP3 Inflammasome-Dependent Pyroptosis by Inhibiting IkB-α/NF-κB Pathway in Acute Lung Injury Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:6248870. [PMID: 36124015 PMCID: PMC9482486 DOI: 10.1155/2022/6248870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/05/2022] [Accepted: 07/23/2022] [Indexed: 11/30/2022]
Abstract
XueFu ZhuYu Decoction (XFZYD) is an effective prescription that is widely used to improve blood circulation by removing blood stasis. This study aimed to investigate the effects and the underlying molecular mechanisms of XFZYD on lung pyroptosis in cardiopulmonary bypass- (CPB-) induced acute lung injury (ALI) rats. A rat model of ALI was induced by CPB treatment after XFZYD, Ac-YVAD-CMK, and Bay-11-7082 administration. The respiratory index (RI) and oxygenation index (OI) were determined at each time point. The levels of interleukin (IL)-1β, IL-6, IL-18, and TNF-α in serum and lung were measured by enzyme-linked immunosorbent assays (ELISA). Moreover, the protein levels, neutrophil counts, and total cell of bronchoalveolar lavage fluid (BALF) were detected. Additionally, Myeloperoxidase (MPO) expression was detected by immunohistochemical assay. Lung injury was evaluated with the wet/dry (W/D) ratio and pathologic changes, respectively. Besides, the expression of NLRP3 inflammasome and IkB-α/NF-κB pathway proteins was estimated by immunofluorescence, quantitative real-time PCR (qRT-PCR), and Western blotting assays, respectively. XFZYD pretreatment significantly ameliorated pulmonary ventilation function and reduced the CPB-induced lung histopathological injury, inflammatory cell infiltration in BALF and lung, and the apoptosis of lung cells. Interestingly, XFZYD decreased the CPB-induced NLRP3, ASC, Caspase-1 p20, Pro-GSDMD, GSDMD p30, IL-18, IL-1β p-P65, and p-IKBα mRNA or protein levels in lung tissues in ALI model rats. In summary, these findings suggest that XFZYD effectively mitigates NLRP3 inflammasome-dependent pyroptosis in CPB-induced ALI model rats, possibly by inhibiting the IkB-α/NF-κB pathway in the lung.
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32
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CircEXOC5 facilitates cell pyroptosis via epigenetic suppression of Nrf2 in septic acute lung injury. Mol Cell Biochem 2022; 478:743-754. [PMID: 36074295 DOI: 10.1007/s11010-022-04521-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 07/05/2022] [Indexed: 10/14/2022]
Abstract
Acute lung injury (ALI) caused by sepsis is characterized by a destructive high inflammatory response in lungs, which is the ultimate cause of high mortality to patients diagnosed with sepsis. The objective of the present study is to explore the effect and related mechanisms of circEXOC5 on pyroptosis in septic ALI. Sepsis ALI mouse model was induced and established by CLP induction and sepsis MPVEC cell model by LPS. HE staining was used to detect lung tissue pathological changes. ELISA, flow cytometry, and Western blot were utilized to evaluate the release of inflammatory cytokines and cell pyroptosis, and RIP was applied to verify the binding relationship between EZH2 and circEXOC5 or Nrf2. Finally, the interaction between CircEXOC5 and EZH2, H3k27me3, and Nrf2 promoter regions was clarified using ChIP. CircEXOC5 levels were notably ascended in the lung tissues of septic ALI mice. And silencing circEXOC5 inhibited cell pyroptosis and the release of inflammatory cytokines in MPVEC stimulated by LPS. In addition, RIP and ChIP indicated that Nrf2 expression in MPVECs cells could be inhibited by circEXOC5 via recruiting EZH2. In addition, ML385 (a specific inhibitor of Nrf2) reversed the efficacy of Knockdown of circEXOC5 on the Inhibition of pyroptosis and inflammation of MPVEC cells stimulated by LPS. These results indicated that CircEXOC5 could promote cell pyroptosis through epigenetic inhibition of Nrf2 in septic ALI.
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33
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Habimana O, Modupe Salami O, Peng J, Yi GH. Therapeutic Implications of Targeting Pyroptosis in Cardiac-related Etiology of Heart Failure. Biochem Pharmacol 2022; 204:115235. [PMID: 36044938 DOI: 10.1016/j.bcp.2022.115235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/26/2022]
Abstract
Heart failure remains a considerable clinical and public health problem, it is the dominant cause of death from cardiovascular diseases, besides, cardiovascular diseases are one of the leading causes of death worldwide. The survival of patients with heart failure continues to be low with 45-60% reported deaths within five years. Apoptosis, necrosis, autophagy, and pyroptosis mediate cardiac cell death. Acute cell death is the hallmark pathogenesis of heart failure and other cardiac pathologies. Inhibition of pyroptosis, autophagy, apoptosis, or necrosis reduces cardiac damage and improves cardiac function in cardiovascular diseases. Pyroptosis is a form of inflammatory deliberate cell death that is characterized by the activation of inflammasomes such as NOD-like receptors (NLR), absent in melanoma 2 (AIM2), interferon-inducible protein 16 (IFI-16), and their downstream effector cytokines: Interleukin IL-1β and IL-18 leading to cell death. Recent studies have shown that pyroptosis is also the dominant cell death process in cardiomyocytes, cardiac fibroblasts, endothelial cells, and immune cells. It plays a crucial role in the pathogenesis of cardiac diseases that contribute to heart failure. This review intends to summarize the therapeutic implications targeting pyroptosis in the main cardiac pathologies preceding heart failure.
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Affiliation(s)
- Olive Habimana
- International College, University of South China, 28, W Changsheng Road, Hengyang, Hunan, 421001, China
| | | | - Jinfu Peng
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, Hunan, 421001, China; Institute of Pharmacy and Pharmacology, Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, Hunan, 421001, China
| | - Guang-Hui Yi
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, Hunan, 421001, China; Institute of Pharmacy and Pharmacology, Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, Hunan, 421001, China.
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34
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circ-Katnal1 Enhances Inflammatory Pyroptosis in Sepsis-Induced Liver Injury through the miR-31-5p/GSDMD Axis. Mediators Inflamm 2022; 2022:8950130. [PMID: 35979014 PMCID: PMC9377930 DOI: 10.1155/2022/8950130] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/24/2022] [Accepted: 06/16/2022] [Indexed: 11/18/2022] Open
Abstract
Background. Sepsis is a systemic inflammatory response that can elicit organ dysfunction as well as circulatory diseases in serious cases. When inflammatory responses are especially dysregulated, severe complications can arise, including sepsis-induced liver injury. Various microRNAs along with circular (circ) RNAs are involved in inflammatory responses; nevertheless, their functions in regulating sepsis-induced liver injury remain unknown. The cecal ligation and puncture (CLP) procedure can induce liver injury as well as polymicrobial sepsis. Methods. In this study, CLP was used to induce liver injury as well as polymicrobial sepsis. Then, liver function, inflammatory cytokine expression, and hepatic histopathology were evaluated. High-throughput sequencing was employed to investigate the abnormal hepatic circRNA expression after CLP. Raw264.7 cells were utilized to simulation an in vitro sepsis inflammation model with LPS induce. The relative mRNA as well as protein levels of TNF-α, IL-1β, and IL-6 was explored by quantitative polymerase chain reaction (PCR) and enzyme-linked immunosorbent assays. We explored functional connections among circRNAs, miR-31-5p, and gasdermin D (GSDMD) using dual-luciferase reporter assays. Western blot was employed to test GSDMD, caspase-1, and NLRP3 expression in mice and cell models. Results. Our results showed that CLP-induced sepsis promoted liver injury via increasing inflammatory pyroptosis. The abnormal expression of circ-Katnal1 played an important role in CLP-induced sepsis. Downregulating circ-Katnal1 suppressed LPS-induced inflammatory pyroptosis in Raw264.7 cells. Bioinformatics and luciferase reporter results confirmed that miR-31-5p and GSDMD were downstream targets of circ-Katnal1. Inhibiting miR-31-5p or upregulating GSDMD reversed the protective effects of silencing circ-Katnal1. Conclusion. Taken together, circ-Katnal1 enhanced inflammatory pyroptosis in sepsis-induced liver injury through the miR-31-5p/GSDMD axis.
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Hu L, Shao C, Pan L, Jiang Z. Lack of STAT6 enhances murine acute lung injury through NLRP3/p38 MAPK signaling pathway in macrophages. BMC Immunol 2022; 23:25. [PMID: 35606692 PMCID: PMC9126100 DOI: 10.1186/s12865-022-00500-9] [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: 08/11/2021] [Accepted: 05/09/2022] [Indexed: 11/24/2022] Open
Abstract
Background Signal transducer and activator of transcription 6 (STAT6) is an intracelluar transcriotion factor and NLRP3 (Nod-like receptor containing a pyrin domain 3) is a component of NLRP3 inflammasome in pyroptotic cells. There was increased activation of STAT6 and expression of NLRP3 in mice with murine acute lung injury (ALI). However, it is unknown their roles in the development of murine ALI. We in this study, investigated the effects of STAT6 signaling on murine ALI and pyroptosis in STAT6 knock-out (KO) mice and macrophages. Results STAT6 was activated in the lung tissues of mice 2 days after intratracheal treatmemt with 5 mg/kg LPS. Lack of STAT6 expression in KO mice induced more severe lung inflammation, associated with elevated neutrophil influx and expression of TNF-alpha, IL-6 and IL-1beta in the inflamed lung tissues. In addition, the expression of NLRP3, ASC (apoptosis-associated speck-like protein containing a CARD), p-p38 MAPK (p38 mitogen-activated protein kinase) and ratio of LC3-II/I (microtubule-associated protein-1 light chain-3) was increased, accompanied with the increased polarization of Siglec-F(−) subtype macrophages in KO mice with ALI. Further studies in bone marrow-derived macrophages (BMDMs) revealed that lack of STAT6 increased the expression of NLRP3 and p-p38 MAPK, in association with elevated expression of TNF-alpha, IL-1beta and Calreticulin in LPS-treated KO BMDMs. Conclusions Lack of STAT6 exacerbated murine ALI through improving the expression of NLRP3 and activation of p38 MAPK in macrophages. STAT6 has an immune suppressive role in the development of ALI and would be a promising therapeutic target in the treatment of ALI and possibly among patients with acute respiratory distress syndrome (ARDS). Supplementary Information The online version contains supplementary material available at 10.1186/s12865-022-00500-9.
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Affiliation(s)
- Lu Hu
- Department of Pulmonary Medicine, Zhongshan Hospital Fudan University, 180 Feng Lin Road, Shanghai, 200032, China.,Department of Respiratory, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'An, China
| | - Changzhou Shao
- Department of Pulmonary Medicine, Zhongshan Hospital Fudan University, 180 Feng Lin Road, Shanghai, 200032, China
| | - Linyue Pan
- Department of Pulmonary Medicine, Zhongshan Hospital Fudan University, 180 Feng Lin Road, Shanghai, 200032, China
| | - Zhilong Jiang
- Department of Pulmonary Medicine, Zhongshan Hospital Fudan University, 180 Feng Lin Road, Shanghai, 200032, China.
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Li ZF, Wang YC, Feng QR, Zhang YS, Zhuang YF, Xie ZX, Bai XJ. Inhibition of the C3a receptor attenuates sepsis-induced acute lung injury by suppressing pyroptosis of the pulmonary vascular endothelial cells. Free Radic Biol Med 2022; 184:208-217. [PMID: 35367342 DOI: 10.1016/j.freeradbiomed.2022.02.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/14/2022] [Accepted: 02/24/2022] [Indexed: 12/14/2022]
Abstract
Acute lung injury (ALI) is the leading cause of bacterial sepsis-related death because of disrupted pulmonary endothelial barrier, resulting in protein-rich pulmonary oedema, an influx of pro-inflammatory cells and refractory hypoxaemia. Several studies have reported that C3a levels are significantly higher in organs with sepsis and their peripheral organs and are closely associated with organ dysfunction and poor prognosis in sepsis. However, the role of the C3a complement in sepsis ALI remains unclear. Therefore, this study aimed to investigate the important role and mechanism of C3a in preventing the occurrence of pyroptosis (a pro-inflammatory form of cell death) to protect the lung endothelial cells (ECs) in sepsis-induced ALI. A septic mouse model was established with cecal ligation and puncture (CLP), which demonstrated that C3a mediated EC pyroptosis through its C3aR receptor. Furthermore, inhibition of the C3a-C3aR axis could block both NLRP3/caspase-1 and caspase-11 pathways, thus preventing pulmonary EC from pyroptosis. These results indicate that inhibition of the C3A-C3AR complement axis can inhibit pulmonary vascular EC pyroptosis, a potential target for the treatment of ALI.
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Affiliation(s)
- Zhan-Fei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095 Jiefang avenue, Wuhan, 430030, Hubei Province, People's Republic of China.
| | - Yu-Chang Wang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, 1095 Jiefang avenue, Wuhan, 430030, Hubei Province, People's Republic of China.
| | - Quan-Rui Feng
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Yong-Sheng Zhang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Yang-Fan Zhuang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Zhen-Xing Xie
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
| | - Xiang-Jun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, People's Republic of China
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Li X, Wang X, Wang B, Chi W, Li Z, Zhang M, Shen Y, Liu X, Lu Y, Liu Y. Dihydromyricetin protects against Doxorubicin-induced cardiotoxicity through activation of AMPK/mTOR pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 99:154027. [PMID: 35278898 DOI: 10.1016/j.phymed.2022.154027] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 02/21/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Doxorubicin (DOX) is a highly effective broad-spectrum antitumor agent, but its clinical administration is limited by self-induced cardiotoxicity. Dihydromyricetin (DHM) is a flavonoid compound extracted from the Japanese raisin tree. Evidence that DHM has neovascular protective properties makes it a candidate for studying cardiotoxicity prevention strategy. However, it remains unknown if DHM can protect against cardiotoxicity caused by DOX. PURPOSE The present study was performed to evaluate the protective effect of DHM on DOX-induced cardiotoxicity in vivo and in vitro. METHODS C57BL/6 mice were intraperitoneally injected with DOX to construct cardiac injury model in vivo, and AC16 cells were exposed to DOX to induce cell injury in vitro. Left ventricular function of mice were detected by echocardiography, the apoptosis of mice cardiac tissue and AC16 cells were detected by TUNEL and Hoechst33342/PI double staining. The expression of apoptosis and autophagy related proteins were detected by western blotting, immunohistochemical staining and immunofluorescence staining. RESULTS Echocardiographic results showed that DOX-induced cardiotoxicity were significantly alleviated by DHM pretreatment. DOX induced cardiotoxicity of mice by inhibiting AMPK activation, increasing apoptosis and decreasing autophagy. However, under the same conditions, the heart tissue of DHM-pretreated mice showed increased autophagy and decreased apoptosis via activation AMPK/mTOR pathway. The same results were observed in vitro, and it was also found that DHM can inhibit the production of intracellular ROS in vitro. CONCLUSION DHM protects against cardiotoxicity by inhibiting apoptosis and oxidative stress and it can allevate theautophagy inhibition caused by DOX through AMPK/mTOR pathway. DHM preconditioning may be a breakthrough in protecting DOX-induced cardiotoxicity in the future clinical applications.
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Affiliation(s)
- Xiaoqi Li
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Wang
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Binyu Wang
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Weiqun Chi
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhangyi Li
- Department of Biochemistry and Life Sciences, Faculty of Arts and Sciences, Queen's University, Kingston, Ontario, Canada
| | - Min Zhang
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yifu Shen
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xu Liu
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Youmei Lu
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yu Liu
- Department of Blood Transfusion and Laboratory Medicine, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China.
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Robinson EK, Worthington A, Poscablo D, Shapleigh B, Salih MM, Halasz H, Seninge L, Mosqueira B, Smaliy V, Forsberg EC, Carpenter S. lincRNA-Cox2 Functions to Regulate Inflammation in Alveolar Macrophages during Acute Lung Injury. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1886-1900. [PMID: 35365562 PMCID: PMC9038212 DOI: 10.4049/jimmunol.2100743] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 02/05/2022] [Indexed: 12/15/2022]
Abstract
Our respiratory system is vital to protect us from the surrounding nonsterile environment; therefore, it is critical for a state of homeostasis to be maintained through a balance of inflammatory cues. Recent studies have shown that actively transcribed noncoding regions of the genome are emerging as key regulators of biological processes, including inflammation. lincRNA-Cox2 is one such example of an inflammatory inducible long intergenic noncoding RNA functioning to fine-tune immune gene expression. Using bulk and single-cell RNA sequencing, in addition to FACS, we find that lincRNA-Cox2 is most highly expressed in the lung and is most upregulated after LPS-induced lung injury (acute lung injury [ALI]) within alveolar macrophages, where it functions to regulate inflammation. We previously reported that lincRNA-Cox2 functions to regulate its neighboring protein Ptgs2 in cis, and in this study, we use genetic mouse models to confirm its role in regulating gene expression more broadly in trans during ALI. Il6, Ccl3, and Ccl5 are dysregulated in the lincRNA-Cox2-deficient mice and can be rescued to wild type levels by crossing the deficient mice with our newly generated lincRNA-Cox2 transgenic mice, confirming that this gene functions in trans. Many genes are specifically regulated by lincRNA-Cox2 within alveolar macrophages originating from the bone marrow because the phenotype can be reversed by transplantation of wild type bone marrow into the lincRNA-Cox2-deficient mice. In conclusion, we show that lincRNA-Cox2 is a trans-acting long noncoding RNA that functions to regulate immune responses and maintain homeostasis within the lung at baseline and on LPS-induced ALI.
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Affiliation(s)
- Elektra Kantzari Robinson
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
| | - Atesh Worthington
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA;,Institute for the Biology of Stem Cells, University of California-Santa Cruz, Santa Cruz, CA; and
| | - Donna Poscablo
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA;,Institute for the Biology of Stem Cells, University of California-Santa Cruz, Santa Cruz, CA; and
| | - Barbara Shapleigh
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
| | - Mays Mohammed Salih
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
| | - Haley Halasz
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
| | - Lucas Seninge
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA
| | - Benny Mosqueira
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
| | - Valeriya Smaliy
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
| | - E. Camilla Forsberg
- Institute for the Biology of Stem Cells, University of California-Santa Cruz, Santa Cruz, CA; and,Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA
| | - Susan Carpenter
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA
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Li J, Bai Y, Tang Y, Wang X, Cavagnaro MJ, Li L, Li Z, Zhang Y, Shi J. A 4-Benzene-Indol Derivative Alleviates LPS-Induced Acute Lung Injury Through Inhibiting the NLRP3 Inflammasome. Front Immunol 2022; 13:812164. [PMID: 35222388 PMCID: PMC8866853 DOI: 10.3389/fimmu.2022.812164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/10/2022] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) is a common complication of critical illness that could frequently lead to acute respiratory distress syndrome and other serious clinical consequences. Sepsis is one of the major and most common inducements among all causes of ALI. Due to its high incidence and mortality rate and also the complexity in treatment, sepsis-related ALI has become an urgent clinical problem waiting to be solved effectively. At present, only the protective ventilation strategy, restrictive fluid management, and antibiotics application are measures that can improve the prognosis with evidence-based medical proof. No pharmacological treatment is currently available to protect or significantly reverse the prognosis. Seeking for effective interventions measures for sepsis-related ALI is one of the most necessitous research directions. In this research, a conspicuous discovery of treatment-related translational use for a 4-benzene-indol derivative was elaborated by screening a large number of chemical compounds. The results showed that 4-benzene-indol derivative could not only suppress the activation of NLRP3 inflammasome both in vitro and alleviate LPS-induced ALI in vivo but also suppress the NLRP3 inflammasome in human myeloid leukemia mononuclear cells (THP-1) cell lines. Mechanistically, 1,2-diol blocks the NLRP3 inflammasome activation by disrupting NLRP3–NEK7 interaction and the subsequent NLRP3 inflammasome assembly and activation. To summarize, this research indicated that the newly-discovered 4-benzene-indol derivative targets NLRP3 inflammasome signaling, which consequently alleviates sepsis-related ALI. Collectively, the 4-benzene-indol derivative may serve as a potential therapeutic drug and NLRP3 inflammasome signaling would be a novel pharmaceutical target for clinical treatment of sepsis-related ALI.
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Affiliation(s)
- Junmei Li
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yang Bai
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yiting Tang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Xiangyu Wang
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | | | - Ling Li
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zhaozheng Li
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yi Zhang
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jian Shi
- Department of Hematology and Critical Care Medicine, The Third Xiangya Hospital, Central South University, Changsha, China.,Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
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Wang Y, Wang J, Xiang H, Ding P, Wu T, Ji G. Recent update on application of dihydromyricetin in metabolic related diseases. Biomed Pharmacother 2022; 148:112771. [PMID: 35247719 DOI: 10.1016/j.biopha.2022.112771] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/22/2022] [Accepted: 02/27/2022] [Indexed: 11/02/2022] Open
Abstract
As a new type of natural flavonoids, dihydromyricetin (DMY) has attracted more and more attention. It has a series of pharmacological effects, such as anti-inflammatory, anti-tumor, anti-oxidation, antibacterial and so on, and it is almost no toxicity and with excellent safety. Therefore, even if the bioavailability is poor, it is often added to daily food, beverages and even medicines. In recent years, some researchers have found that DMY can treat some diseases by anti-oxidation, anti-inflammation, promoting cell death and regulate the activity of lipid and glucose metabolism. In addition, the mechanism of DMY on these diseases was also related to the signal pathway of AMPK, PI3K/Akt, PPAR and the participation of microRNAs. This review describes the mechanism of DMY in metabolic related diseases from three aspects: metabolic diseases, liver diseases, and cancers, hoping to provide some new ideas for clinical researches.
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Affiliation(s)
- Yirong Wang
- Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China; Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Junmin Wang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Hongjiao Xiang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Peilun Ding
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Tao Wu
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Guang Ji
- Institute of Digestive Disease, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China.
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Zhang Y, Zhang J, Fu Z. Molecular hydrogen is a potential protective agent in the management of acute lung injury. Mol Med 2022; 28:27. [PMID: 35240982 PMCID: PMC8892414 DOI: 10.1186/s10020-022-00455-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/14/2022] [Indexed: 11/21/2022] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome, which is a more severe form of ALI, are life-threatening clinical syndromes observed in critically ill patients. Treatment methods to alleviate the pathogenesis of ALI have improved to a great extent at present. Although the efficacy of these therapies is limited, their relevance has increased remarkably with the ongoing pandemic caused by the novel coronavirus disease 2019 (COVID-19), which causes severe respiratory distress syndrome. Several studies have demonstrated the preventive and therapeutic effects of molecular hydrogen in the various diseases. The biological effects of molecular hydrogen mainly involve anti-inflammation, antioxidation, and autophagy and cell death modulation. This review focuses on the potential therapeutic effects of molecular hydrogen on ALI and its underlying mechanisms and aims to provide a theoretical basis for the clinical treatment of ALI and COVID-19.
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Affiliation(s)
- Yan Zhang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Jin Zhang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China
| | - Zhiling Fu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.
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Huang YD, Fang Y, Ma L, Feng PJ, Li WL, Zhou YQ, Qin YH, You ZJ, Dong L. Kindlin-2 Mediates Lipopolysaccharide-Induced Acute Lung Injury Partially via Pyroptosis in Mice. Inflammation 2022; 45:1199-1208. [PMID: 35133562 DOI: 10.1007/s10753-021-01613-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/16/2021] [Accepted: 12/13/2021] [Indexed: 11/26/2022]
Abstract
Acute lung injury (ALI) is characteristic of the wholesale destruction of the lung endothelial barrier, which results in protein-rich lung edema, influx of pro-inflammatory leukocytes, and intractable hypoxemia, contributing to high mortality. Kindlin-2 is involved in the process of tumor- and wound healing-associated inflammation. However, the effects of kindlin-2 on lipopolysaccharide (LPS)-induced ALI and its mechanisms remain unknown. In this study, we found that the concentration of kindlin-2 was elevated in the lungs of ALI mice. The specific deletion of kindlin-2 by kindlin-2 siRNA attenuated the severity of lung injury, which was demonstrated by the reduced number of pro-inflammatory cells in bronchoalveolar lavage fluid and lung wet/dry weight ratio, and ameliorated pathologic changes in the lungs of ALI mice. Furthermore, kindlin-2 siRNA decreased the mRNA levels of pro-inflammatory factors (IL-1β, IL-6, and TNF-α) and the protein levels of pyroptosis-related proteins. In vitro studies confirmed that LPS + ATP promoted the expressions of pro-inflammatory factors and pyroptosis-related proteins, which was prevented by kindlin-2 siRNA pretreatment in endothelial cells (ECs). In conclusion, inhibition of kindlin-2 developes protective effects against LPS-induced ALI and the cytotoxicity of ECs, which may depend on blocking pyroptosis.
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Affiliation(s)
- Yi-Dan Huang
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China
| | - Yu Fang
- Medical Laboratory and Pathology Center, The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, 410021, Hunan, China
| | - Li Ma
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China
| | - Peng-Jiu Feng
- Department of Anesthesiology, Liuzhou Traditional Chinese Medicine Hospital, Liuzhou, 545001, Guangxi, China
| | - Wen-Long Li
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China
| | - Yi-Qi Zhou
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China
| | - Yuan-Hao Qin
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China
| | - Zhi-Jian You
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China.
| | - Liang Dong
- Department of Anesthesiology, Liuzhou Municipal People's Hospital, Liuzhou, 545006, Guangxi, China.
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GPA Peptide Attenuates Sepsis-Induced Acute Lung Injury in Mice via Inhibiting Oxidative Stress and Pyroptosis of Alveolar Macrophage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2021:5589472. [PMID: 34992715 PMCID: PMC8727129 DOI: 10.1155/2021/5589472] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/03/2021] [Accepted: 12/02/2021] [Indexed: 02/08/2023]
Abstract
Acute lung injury (ALI) has been known to be a devastating form of respiratory infection and an important contributor to mortality in intensive care, due to its lacking of effective treatment. Inflammation, oxidative stress, and pyroptosis are associated with multiple kinds of inflammatory diseases such as ALI. It is commonly accepted that Gly-Pro-Ala (GPA) peptide regulates oxidative stress and pyroptosis in different kinds of inflammatory diseases. Our study is aimed at exploring the regulatory function and protective effects of GPA peptides on ALI. In the current study, the cecal ligation and puncture (CLP) technique was used to evoke sepsis in mice, and GPA peptide was administered intraperitoneally with different concentrations (50, 100, and 150 mg/kg) after CLP. Histopathological changes and the ratio of wet-to-dry in lung were recorded and analyzed. We also investigated the level of oxidative stress, inflammation, and pyroptosis. Results showed that GPA peptide significantly ameliorated CLP-stimulated lung tissue injury, impeded proinflammatory cytokine release, and reduced inflammatory cell infiltration. Additionally, GPA peptide suppressed oxidative stress and caspase-1-dependent pyroptosis in alveolar macrophages. Furthermore, our study showed that the GPA peptide prevents alveolar macrophage from undergoing pyroptosis by attenuating ROS. In conclusion, results demonstrated that GPA peptide has protective effects in CLP-stimulated ALI by inhibiting oxidative stress as well as pyroptosis of alveolar macrophage.
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Mahmoud AM, Sayed AM, Ahmed OS, Abdel-Daim MM, Hassanein EHM. The role of flavonoids in inhibiting IL-6 and inflammatory arthritis. Curr Top Med Chem 2022; 22:746-768. [PMID: 34994311 DOI: 10.2174/1568026622666220107105233] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/21/2021] [Accepted: 10/28/2021] [Indexed: 11/22/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease that primarily affects the synovial joints. RA has well-known clinical manifestations and can cause progressive disability and premature death along with socioeconomic burdens. Interleukin-6 (IL-6) has been implicated in the pathology of RA where it can stimulate pannus formation, osteoclastogenesis, and oxidative stress. Flavonoids are plant metabolites with beneficial pharmacological effects, including anti-inflammatory, antioxidant, antidiabetic, anticancer, and others. Flavonoids are polyphenolic compounds found in a variety of plants, vegetables, and fruits. Many flavonoids have demonstrated anti-arthritic activity mediated mainly through the suppression of pro-inflammatory cytokines. This review thoroughly discusses the accumulate data on the role of flavonoids on IL-6 in RA.
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Affiliation(s)
- Ayman M Mahmoud
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Egypt
| | - Ahmed M Sayed
- Biochemistry Laboratory, Chemistry Department, Faculty of Science, Assiut University, Egypt
| | - Osama S Ahmed
- Faculty of Pharmacy, Al-Azhar University-Assiut Branch, Egypt
| | - Mohamed M Abdel-Daim
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Egypt
| | - Emad H M Hassanein
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University-Assiut Branch, Egypt
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OUP accepted manuscript. Toxicol Res (Camb) 2022; 11:437-450. [PMID: 35782648 PMCID: PMC9244226 DOI: 10.1093/toxres/tfac020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/21/2022] [Accepted: 03/28/2022] [Indexed: 11/12/2022] Open
Abstract
Background Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are clinically severe respiratory disorders, and there are currently no Food and Drug Administration-approved drug therapies. It is of great interest to us that dimethyl fumarate (DMF) has been shown to have anti-inflammatory effects. The aim of this study was to investigate whether DMF could alleviate lipopolysaccharide(LPS)-induced ALI, and to explore its mechanism of action. Materials and methods We established a mice model of ALI with intratracheal instillation of LPS and intraperitoneal injection of DMF to treat ALI. The pathological damage and inflammatory response of lung tissues were observed by hematoxylin and eosin (H&E) staining, ELISA assay and western blot. ATP plus LPS was used for the establishment of ALI in vitro model, the therapeutic effects of DMF was explored by ELISA assay, RT-qPCR, western blot, and flow cytometry, and the therapeutic mechanisms of DMF was explored by administration of Brusatol (BT), a nuclear factor erythroid-2-related factor 2 (Nrf2) inhibitor. Results We found that intraperitoneal injection of DMF significantly reduced LPS-induced the pulmonary injury, pulmonary edema, and infiltration of inflammatory mediators. In LPS-induced ALI, NLRP3 inflammasome-mediated pyroptosis was markedly activated, followed by cleavage of caspase-1 and GSDMD. DMF inhibited the activation of the NLRP3 inflammasome and pyroptosis in both lung of ALI mice and ATP plus LPS-induced BEAS-2B cells. Mechanistically, DMF enhanced expressions of Nrf2, leading to inactivation of NLRP3 inflammasome and reduced pyroptosis in vivo and in vitro. Conversely, BT reduced the inhibitory effects of DMF on NLRP3 inflammasome and pyroptosis, and consequently blocked the improvement roles of DMF on ALI. Conclusions DMF could improve LPS-induced ALI via inhibiting NLRP3 inflammasome and pyroptosis, and that these effects were mediated by triggering Nrf2 expression, suggesting a therapeutic potential of DMF as an anti-inflammatory agent for ALI/ARDS treatment.
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Zhang ZT, Zhang DY, Xie K, Wang CJ, Xu F. Luteolin activates Tregs to promote IL-10 expression and alleviating caspase-11-dependent pyroptosis in sepsis-induced lung injury. Int Immunopharmacol 2021; 99:107914. [PMID: 34246059 DOI: 10.1016/j.intimp.2021.107914] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/19/2021] [Accepted: 06/21/2021] [Indexed: 01/15/2023]
Abstract
OBJECTIVES Acute respiratory distress syndrome (ARDS) is characterized by an excessive pulmonary inflammatory response. Pyroptosis is a newly form of programmed inflammatory cell death that is triggered by inflammatory caspases. Studies have shown that Luteolin has powerful anti-inflammation effects through activating the function of regulatory T cells (Tregs). The study aimed at investigating the effects of Luteolin on CLP-induced ALI. METHODS In our study, we employed the mouse cecal ligation and puncture (CLP) model to explore whether Luteolin contributed to alleviated lung injury in vivo. H&E staining and wet/dry (W/D) weight ratios were used to evaluate the severity of lung injury. The serum and BALF of cytokines were assessed by ELISA. The number of neutrophils in the BALF was counted. Immunohistochemistry of IL-10 and MPO in lung tissue was detected. The ROS level in lung was tested by ROS Assay Kit and expression of Gpx4 in lung tissue was detected by qRT-PCR and Western blotting. The regulatory T cells (Treg) population was analyzed in spleen and Peripheral blood mononuclear cells (PBMCs). The levels of caspase-11 protein, caspase-1 protein, GSDMD protein, IL-1α and IL-1β protein in the lung tissue was evaluated by Western blotting. RESULTS We found Luteolin significantly inhibits inflammation and attenuated CLP-induced lung injury in vivo, and the levels of, caspase-11, caspase-1, GSDMD, IL-1α and IL-1β protein in the lungs of CLP mice decreased significantly after pretreatment with Luteolin. Furthermore, the results showed that Luteolin could increase Treg frequencies and IL-10 levels in serum and BALF of CLP mice. It is noteworthy that depleting Tregs reverse Luteolin ameliorated lung injury, and IL-10 neutralizing antibodies treatment aggravated lung pyroptosis. CONCLUSIONS Our study illustrated that Luteolin contributed to alleviated lung injury, and attenuated caspase-11-dependent pyroptosis in the lung tissue of the CLP-induced ALI mouse model. The mechanisms could be related to regulating the frequency of Tregs and the levels of Treg derived IL-10. Treg cells were show to produce IL-10 and could alleviating caspase-11-dependent lung pyroptosis.
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Affiliation(s)
- Zheng-Tao Zhang
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dan-Ying Zhang
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ke Xie
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chuan-Jiang Wang
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Fang Xu
- Department of Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Liu C, Cai B, Li D, Yao Y. Wolf-Hirschhorn syndrome candidate 1 facilitates alveolar macrophage pyroptosis in sepsis-induced acute lung injury through NEK7-mediated NLRP3 inflammasome activation. Innate Immun 2021; 27:437-447. [PMID: 34428935 PMCID: PMC8504266 DOI: 10.1177/17534259211035426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/23/2021] [Accepted: 07/09/2021] [Indexed: 11/29/2022] Open
Abstract
Sepsis is a complex clinical syndrome with high incidence and mortality. Acute lung injury (ALI) is a common complication of sepsis. At present, there is no effective therapeutic strategy to treat ALI. The SET domain-containing histone methyltransferase Wolf-Hirschhorn syndrome candidate 1 (WHSC1) regulates cancer progression, while its role in sepsis-induced ALI remains unclear. Thus, this study aimed to study the effect of WHSC1 on sepsis-induced ALI and to explore the potential mechanism of action. In the study, LPS treatment induced lung injury. WHSC1 was highly expressed in LPS-induced ALI. Knockdown of WHSC1 attenuated LPS-induced ALI and pyroptosis in vivo. Besides, knockdown of WHSC1 attenuated LPS-induced alveolar macrophage pyroptosis in vitro. Furthermore, NIMA-related kinase-7 (NEK7) expression could be regulated by WHSC1, and NEK7 bound to NLRP3 in alveolar macrophages. Moreover, WHSC1 regulated alveolar macrophage pyroptosis through modulating NEK7-mediated NLRP3 inflammasome activation. In conclusion, WHSC1 was highly expressed in LPS-induced ALI. WHSC1 facilitated alveolar macrophage pyroptosis in sepsis-induced ALI through NEK7-mediated NLRP3 inflammasome activation. WHSC1 may be a valuable target for the therapy of sepsis-induced ALI.
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Affiliation(s)
- Caixia Liu
- Department of Paediatrics, Taihe Hospital, Hubei University of Medicine, China
| | - Benlong Cai
- Department of Paediatrics, Taihe Hospital, Hubei University of Medicine, China
| | - Dan Li
- Department of Pathology, Taihe Hospital, Hubei University of Medicine, China
| | - Yuan Yao
- Department of Paediatrics, Taihe Hospital, Hubei University of Medicine, China
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Zou L, Yu Q, Zhang L, Yuan X, Fang F, Xu F. Identification of inflammation related lncRNAs and Gm33647 as a potential regulator in septic acute lung injury. Life Sci 2021; 282:119814. [PMID: 34298039 DOI: 10.1016/j.lfs.2021.119814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
Sepsis is commonly complicated by acute lung injury (ALI). We aimed to determine the long non-coding RNAs (lncRNAs) and mRNAs expression profiles. Septic acute lung injury mouse model was established by cecal ligation and puncture. LPS was applied to induce inflammation in mouse alveolar macrophages (MH-s). Besides, LPS/Nigericin sodium salt was used to activate inflammasome in MH-s. LncRNA and mRNA profiles were detected using an Agilent microarray and identified by qPCR. Bioinformatic analyses were employed to analyze the expression profiles and multiple biological functions. Inflammation-related mRNAs were selected according to KEGG pathways and GO terms including inflammation response, immune response and cytokine activity. A network of inflammation related mRNAs and co-expressed lncRNAs was conducted. Finally, Gm33647 was identified as potential regulator in septic acute lung injury. Gm33647 was knock-downed via siRNA to explore functions. The results showed 353 differentially expressed lncRNAs and 3116 differentially expressed mRNAs were identified. Co-expression networks of lncRNA-mRNA showed Gm33647 was a hub gene. Cis- and trans-regulation analyses revealed Gm41442, Gm38850 and Gm36841 could function as a network in septic ALI. LncRNA Gm33647 was reduced by LPS and increased by inflammasome activation in MH-s. Silencing Gm33647 up-regulated IL-6, IL10 and TNF-α in MH-s. When inflammasome was activated by LPS/Nigericin sodium salt, IL-1β, IL-18 and Caspase 1 were increased by silencing Gm33647 in MH-s. These results identified inflammation related lncRNAs and Gm33647 as potential regulators in septic ALI.
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Affiliation(s)
- Liying Zou
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Qing Yu
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Luyun Zhang
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Xiu Yuan
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Fang Fang
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Feng Xu
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China.
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Jin S, Ding X, Yang C, Li W, Deng M, Liao H, Lv X, Pitt BR, Billiar TR, Zhang LM, Li Q. Mechanical Ventilation Exacerbates Poly (I:C) Induced Acute Lung Injury: Central Role for Caspase-11 and Gut-Lung Axis. Front Immunol 2021; 12:693874. [PMID: 34349759 PMCID: PMC8327178 DOI: 10.3389/fimmu.2021.693874] [Citation(s) in RCA: 12] [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: 04/12/2021] [Accepted: 07/02/2021] [Indexed: 11/22/2022] Open
Abstract
Background The mechanisms by which moderate tidal volume ventilation (MTV) exacerbates preexisting lung injury are unclear. We hypothesized that systemic endotoxemia via the gut-lung axis would lead to non-canonical and canonical inflammasome activation and pyroptosis in a two-hit model involving polyinosinic-polycytidylic acid (Poly(I:C)), a synthetic analog of dsRNA and MTV and that this would associate with acute lung injury (ALI). Methods Anesthetized mice were administered Poly(I:C) intratracheally and then 6 h later, they were mechanically ventilated for 4 h with otherwise non-injurious MTV (10ml/kg). Changes in intestinal and alveolar capillary permeability were measured. Further documentation of ALI was assessed by evans blue albumin permeability, protein and IL-1 family concentration in bronchoalveolar lavage fluid (BALF) or plasma, and histopathology in cohorts of wildtype (WT), whole body genetically ablated caspase-11 (caspase-11-/-), caspase-1/caspase-11 double knockout (caspase-1/11-/-), gasdermin D (GSDMD)-/-, nucleotide-binding domain leucine-rich repeat-containing protein 3 (NLRP3)-/- and advanced glycosylation end product-specific receptor (RAGE) -/- mice. Results Non-injurious MTV exacerbated the mild lung injury associated with Poly(I:C) administration. This included the disruption of alveolar-capillary barrier and increased levels of interleukin (IL)-6, high mobility group proteins 1 (HMGB-1), IL-1β in BALF and IL-18 in plasma. Combined (Poly(I:C)-MTV) injury was associated with increase in gastrointestinal permeability and endotoxin in plasma and BALF. Poly(I:C)-MTV injury was sensitive to caspase-11 deletion with no further contribution of caspase-1 except for maturation and release of IL-18 (that itself was sensitive to deletion of NLRP3). Combined injury led to large increases in caspase-1 and caspase-11. Genetic ablation of GSDMD attenuated alveolar-capillary disruption and release of cytokines in combined injury model. Conclusions The previously noted exacerbation of mild Poly(I:C)-induced ALI by otherwise non-injurious MTV is associated with an increase in gut permeability resulting in systemic endotoxemia. The gut-lung axis resulted in activation of pulmonary non-canonical (cytosolic mediated caspase-11 activation) and canonical (caspase-1) inflammasome (NLRP3) mediated ALI in this two-hit model resulting in GSDMD sensitive alveolar capillary barrier disruption, pyroptosis (alveolar macrophages) and cytokine maturation and release (IL-1β; IL-18). Pharmacologic strategies aimed at disrupting communication between gut and lung, inhibition of inflammasomes or GSDMD in pyroptosis may be useful in ALI.
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MESH Headings
- Acute Lung Injury/chemically induced
- Acute Lung Injury/enzymology
- Acute Lung Injury/microbiology
- Acute Lung Injury/pathology
- Animals
- Bacteria/metabolism
- Caspases, Initiator/genetics
- Caspases, Initiator/metabolism
- Disease Models, Animal
- Gastrointestinal Microbiome
- Intestines/microbiology
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- Lipopolysaccharides/metabolism
- Lung/enzymology
- Lung/pathology
- Macrophages, Alveolar/enzymology
- Macrophages, Alveolar/pathology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/metabolism
- Phosphate-Binding Proteins/genetics
- Phosphate-Binding Proteins/metabolism
- Poly I-C
- Pyroptosis
- Receptor for Advanced Glycation End Products/genetics
- Receptor for Advanced Glycation End Products/metabolism
- Respiration, Artificial
- Signal Transduction
- Ventilator-Induced Lung Injury/enzymology
- Ventilator-Induced Lung Injury/etiology
- Ventilator-Induced Lung Injury/microbiology
- Ventilator-Induced Lung Injury/pathology
- Mice
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Affiliation(s)
- Shuqing Jin
- Department of Anesthesiology, Shanghai Pulmonary Hospital, TongJi University, Shanghai, China
- Department of Surgery, University of Pittsburgh Medical School, Pennsylvania, PA, United States
| | - Xibing Ding
- Department of Anesthesiology, Renji Hospital, Shanghai Jiaotong University Medical School, Shanghai, China
| | - Chenxuan Yang
- Department of Surgery, University of Pittsburgh Medical School, Pennsylvania, PA, United States
- Department of Breast Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenbo Li
- Department of Surgery, University of Pittsburgh Medical School, Pennsylvania, PA, United States
| | - Meihong Deng
- Department of Surgery, The Ohio State University, Ohio, OH, United States
| | - Hong Liao
- Department of Surgery, University of Pittsburgh Medical School, Pennsylvania, PA, United States
| | - Xin Lv
- Department of Anesthesiology, Shanghai Pulmonary Hospital, TongJi University, Shanghai, China
| | - Bruce R. Pitt
- Department of Environmental Occupational Health, University of Pittsburgh Graduate School Public Health, Pennsylvania, PA, United States
| | - Timothy R. Billiar
- Department of Surgery, University of Pittsburgh Medical School, Pennsylvania, PA, United States
| | - Li-Ming Zhang
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh School of Medicine, Pennsylvania, PA, United States
| | - Quan Li
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
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Zheng X, Chen W, Gong F, Chen Y, Chen E. The Role and Mechanism of Pyroptosis and Potential Therapeutic Targets in Sepsis: A Review. Front Immunol 2021; 12:711939. [PMID: 34305952 PMCID: PMC8293747 DOI: 10.3389/fimmu.2021.711939] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/22/2021] [Indexed: 01/15/2023] Open
Abstract
Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. Recently was been found that pyroptosis is a unique form of proinflammatory programmed death, that is different from apoptosis. A growing number of studies have investigated pyroptosis and its relationship with sepsis, including the mechanisms, role, and relevant targets of pyroptosis in sepsis. While moderate pyroptosis in sepsis can control pathogen infection, excessive pyroptosis can lead to a dysregulated host immune response and even organ dysfunction. This review provides an overview of the mechanisms and potential therapeutic targets underlying pyroptosis in sepsis identified in recent decades, looking forward to the future direction of treatment for sepsis.
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Affiliation(s)
| | | | | | - Ying Chen
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Erzhen Chen
- Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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