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Anton DB, de Lima JC, Dahmer BR, Camini AM, Goettert MI, Timmers LFSM. Taming the storm: potential anti-inflammatory compounds targeting SARS-CoV-2 MPro. Inflammopharmacology 2024:10.1007/s10787-024-01525-9. [PMID: 39048773 DOI: 10.1007/s10787-024-01525-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 07/05/2024] [Indexed: 07/27/2024]
Abstract
In severe COVID-19 cases, an exacerbated inflammatory response triggers a cytokine storm that can worsen the prognosis. Compounds with both antiviral and anti-inflammatory activities show promise as candidates for COVID-19 therapy, as they potentially act against the SARS-CoV-2 infection regardless of the disease stage. One of the most attractive drug targets among coronaviruses is the main protease (MPro). This enzyme is crucial for cleaving polyproteins into non-structural proteins required for viral replication. The aim of this review was to identify SARS-CoV-2 MPro inhibitors with both antiviral and anti-inflammatory properties. The interactions of the compounds within the SARS-CoV-2 MPro binding site were analyzed through molecular docking when data from crystallographic structures were unavailable. 18 compounds were selected and classified into five different superclasses. Five of them exhibit high potency against MPro: GC-376, baicalein, naringenin, heparin, and carmofur, with IC50 values below 0.2 μM. The MPro inhibitors selected have the potential to alleviate lung edema and decrease cytokine release. These molecules mainly target three critical inflammatory pathways: NF-κB, JAK/STAT, and MAPK, all previously associated with COVID-19 pathogenesis. The structures of the compounds occupy the S1/S2 substrate binding subsite of the MPro. They interact with residues from the catalytic dyad (His41 and Cys145) and/or with the oxyanion hole (Gly143, Ser144, and Cys145), which are pivotal for substrate recognition. The MPro SARS-CoV-2 inhibitors with potential anti-inflammatory activities present here could be optimized for maximum efficacy and safety and be explored as potential treatment of both mild and severe COVID-19.
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Affiliation(s)
- Débora Bublitz Anton
- Biotechnology Graduate Program, Universidade do Vale do Taquari (Univates), Lajeado, CEP 95914-014, Brazil
| | - Jeferson Camargo de Lima
- Biotechnology Graduate Program, Universidade do Vale do Taquari (Univates), Lajeado, CEP 95914-014, Brazil
| | - Bruno Rampanelli Dahmer
- Biotechnology Graduate Program, Universidade do Vale do Taquari (Univates), Lajeado, CEP 95914-014, Brazil
| | - Ana Micaela Camini
- Biotechnology Graduate Program, Universidade do Vale do Taquari (Univates), Lajeado, CEP 95914-014, Brazil
| | - Marcia Inês Goettert
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical Sciences, Eberhard Karls Universität Tübingen, 72076, Tübingen, Germany
| | - Luis Fernando Saraiva Macedo Timmers
- Biotechnology Graduate Program, Universidade do Vale do Taquari (Univates), Lajeado, CEP 95914-014, Brazil.
- Medical Science Graduate Program, Universidade do Vale do Taquari (Univates), Lajeado, CEP 95914-014, Brazil.
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2
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Zhang C, Xing Y, Wu X, Jiang Q, Luo X, He W, Liu S, Lu W, Wang J. Inhalation of hydrogen gas protects against mitomycin-induced pulmonary veno-occlusive disease. Respir Res 2024; 25:281. [PMID: 39014440 PMCID: PMC11253336 DOI: 10.1186/s12931-024-02906-y] [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: 08/09/2023] [Accepted: 07/04/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND As a subtype of pulmonary hypertension (PH), pulmonary veno-occlusive disease (PVOD) is devastating and life-threatening disease without effective therapy. Hydrogen has been reported to exhibits antioxidant and anti-inflammatory effects in a rat model induced by monocrotaline of PH. In this study, we investigated the effects of inhaled hydrogen gas on the prevention and treatment of PVOD induced by mitomycin C (MMC) in rats. METHODS PVOD was induced in female Sprague-Dawley rats through intraperitoneal injection of MMC at a concentration of 3 mg·kg- 1·wk- 1 for 2 weeks. Inhalation of hydrogen gas (H2) was administered through a designed rat cage concurrently or two weeks after MMC administration. The severity of PVOD was assessed by using hemodynamic measurements and histological analysis. The expression levels of general control nonderepressible 2 (GCN2), nuclear factor erythroid 2-related factor-2 (Nrf2), heme oxygenase-1 (HO-1) and endothelial-to-mesenchymal transition (EndoMT) related proteins in lung tissue were measured. Levels of lipid peroxidation pro-inflammatory cytokines in serum were determined. RESULTS Inhaled H2 improved hemodynamics and right heart function, reversed right ventricular hypertrophy, and prevented pulmonary vessel reconstitution in both prevention and treatment approaches. It decreased malondialdehyde (MDA) levels in the serum and the expression of NADPH oxidase 1 (NOX-1) in lung tissue. It regulated Nrf2/HO-1 signaling pathway and anti-inflammatory factor GCN2 in lung tissue, accompanied by a decrease in macrophages and pro-inflammatory cytokines. Our data suggested that H2 inhalation effectively countered EndoMT induced by MMC, as evidenced by the detection of endothelial markers (e.g., VE-cadherin and CD31) and mesenchymal markers (e.g., vimentin and fibronectin). Further research revealed that H2 preserved p-Smad3 and induced p-Smad1/5/9. CONCLUSION Inhalation of H2 effectively inhibits the pathogenesis of PVOD induced by MMC in rats. This inhibitory effect may be attributed to the antioxidant and anti-inflammatory properties of H2.
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Affiliation(s)
- Chenting Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Yue Xing
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Xuefen Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Qian Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Xiaoyun Luo
- Guangzhou Laboratory, Guangzhou International Bio Island, Guangzhou, Guangdong, China
| | - Wei He
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Shiyun Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Wenju Lu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China.
| | - Jian Wang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510120, China.
- Guangzhou Laboratory, Guangzhou International Bio Island, Guangzhou, Guangdong, China.
- Section of Physiology, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California San Diego, La Jolla, San Diego, CA, USA.
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3
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Huang J, Zhu Y, Li S, Jiang H, Chen N, Xiao H, Liu J, Liang D, Zheng Q, Tang J, Meng X. Licochalcone B confers protective effects against LPS-Induced acute lung injury in cells and mice through the Keap1/Nrf2 pathway. Redox Rep 2023; 28:2243423. [PMID: 37565601 PMCID: PMC10424628 DOI: 10.1080/13510002.2023.2243423] [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] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Acute lung injury (ALI) is a severe and often fatal pulmonary disease. Current treatments for ALI and acute respiratory distress syndrome (ARDS) are limited. Natural product metabolites have shown promise as therapeutic alternatives. However, the effects of Licochalcone B (LCB) on ALI are largely unknown. METHODS We investigated the effects of LCB on lipopolysaccharide-challenged mice and human pulmonary microvascular endothelial cells. Cell viability, apoptosis, and ROS production were assessed. Lung tissue histopathology and oxidative stress and inflammation markers were evaluated. Protein expression levels were measured. RESULTS LCB had no cytotoxic effects on cells and increased cell viability. It reduced apoptosis and ROS levels in cells. In mice with ALI, LCB decreased lung tissue weight and improved oxidative stress and inflammation markers. It also enhanced expression levels of Nrf2, HO-1, and NQO1 while reducing Keap1. CONCLUSION LCB protects against LPS-induced acute lung injury in cells and mice. The Keap1/Nrf2 pathway may be involved in its protective effects. LCB shows potential as a strategy to alleviate ALI caused by LPS.
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Affiliation(s)
- Ju Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Yu Zhu
- Chengdu sport university, Chengdu, People's Republic of China
| | - Songtao Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Huanyu Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Nianzhi Chen
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Hang Xiao
- Capital Medical University, Beijing, People’s Republic of China
| | - Jingwen Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Dan Liang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Qiao Zheng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Jianyuan Tang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Xiangrui Meng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
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4
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Liu H, Yang X, Liu G. Regulation of cell proliferation and transdifferentiation compensates for ventilator-induced lung injury mediated by NLRP3 inflammasome activation. Immun Inflamm Dis 2023; 11:e1062. [PMID: 37904713 PMCID: PMC10599283 DOI: 10.1002/iid3.1062] [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: 05/31/2023] [Revised: 10/01/2023] [Accepted: 10/11/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Mechanical ventilation is an important means of respiratory support and treatment for various diseases. However, its use can lead to serious complications, especially ventilator-induced lung injury (VILI). The mechanisms underlying this disease are complex, but activation of inflammatory signalling pathways results in activation of cytokines and inflammatory mediators, which play key roles in VILI. Recent studies have demonstrated that nod-like receptor protein 3 (NLRP3) inflammasome activation mediates VILI and also accompanied by cell proliferation and transdifferentiation to compensate for alveolar membrane damage. Type I alveolar epithelial cells (AECs I), which are involved in the formation of the blood-air barrier, are vulnerable to damage but cannot proliferate by themselves; thus, replacing AECs I relies on type II alveolar epithelial cells (AECs II). OBJECTIVE The review aims to introduce the mechanisms of NLRP3 inflammasome activation and its inhibitors, as well as the mechanisms that regulate cell proliferation and transdifferentiation. METHODS A large number of relevant literature was searched, then the key content was summarized and figures were also made. RESULTS The mechanism of NLRP3 inflammasome activation has been further explored, including but not limited to pathogenic and aseptic inflammatory signals, such as, pathogenic molecular patterns and host-derived danger-associated molecular patterns activate toll-like receptor 4/nuclear factor-kappaB pathway or reactive oxygen species, cyclic stretch, adenosine triphosphate induce K+ efflux through P2X7, Ca2+ inflow, mitochondrial damage, etc, eventually induce NIMA-related kinase 7/NLRP3 binding and NLRP3 inflammasome activation. Not only that, the review also described in detail the inhibitors of NLRP3 inflammasome. And the mechanisms regulating cell proliferation and transdifferentiation are complex and unclear, including the Wnt/β-catenin, Yap/Taz, BMP/Smad and Notch signalling pathways. CONCLUSIONS NLRP3 inflammasome activation mediated VILI, and VILI is alleviated after interfering with its activation, and inflammation and repair exist simultaneously in VILI. Clarifying these mechanisms is expected to provide theoretical guidance for alleviating VILI by inhibiting the inflammatory response and accelerating alveolar epithelial cell regeneration in the early stage.
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Affiliation(s)
- Huan Liu
- Department of AnesthesiologyQilu Hospital of Shandong UniversityJi'nanChina
| | - Xuepeng Yang
- Department of OphtalmologyJinan Second People's HospitalJi'nanChina
| | - Ge Liu
- Department of OphtalmologyQilu Hospital of Shandong UniversityJi'nanChina
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5
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Wu X, Wu L, Wu Y, Chen W, Chen J, Gong L, Yu J. Heme oxygenase-1 ameliorates endotoxin-induced acute lung injury by modulating macrophage polarization via inhibiting TXNIP/NLRP3 inflammasome activation. Free Radic Biol Med 2023; 194:12-22. [PMID: 36436727 DOI: 10.1016/j.freeradbiomed.2022.11.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
Acute lung injury (ALI) remains a global public health issue without specific and effective treatment options available in the clinic. Alveolar macrophage polarization is involved in the initiation, development and progression of ALI; however, the underlying mechanism remains poorly understood. Heme oxygenase-1 (HO-1) acts as an antioxidant in pulmonary inflammation and has been demonstrated to be linked with the severity and prognosis of ALI. In this study, the therapeutic effects of HO-1 were examined, along with the mechanisms involved, mainly focusing on alveolar macrophage polarization. HO-1 depletion induced higher iNOS and CD86 (M1 phenotype) expression but was significantly decreased in Arg-1 and CD206 (M2 phenotype) expression in BALF alveolar macrophages after equivalent LPS stimulation. We also found that HO-1 deletion distinctly accelerated the expression of inflammasome-associated components NLRP3, ASC and caspase-1 in vivo and in vivo and in vitro. Moreover, on the basis of LPS for MH-S cells, levels of TXNIP, NLRP3, ASC and caspase-1 were increased and HO-1 depletion exacerbated these changes, whereas double depletion of HO-1 and TXNIP partially mitigated these elevations. Also, HO-1 knockdown induced more M1 phenotype and less M2 phenotype compared with LPS alone, whereas double silence of HO-1 and TXNIP partially changed the polarization state. Taken together, we demonstrated that HO-1 could modulate macrophage polarization via TXNIP/NLRP3 signaling pathway, which could be a potential therapeutic target for ALI treatment.
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Affiliation(s)
- Xiaoyang Wu
- School of Medicine, Nankai University, Tianjin, China
| | - Lili Wu
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Ya Wu
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Wei Chen
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Jinkun Chen
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China
| | - Lirong Gong
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China.
| | - Jianbo Yu
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, School of Medicine, Nankai University, Tianjin, China.
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6
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Hsieh HL, Liu SH, Chen YL, Huang CY, Wu SJ. Astragaloside IV suppresses inflammatory response via suppression of NF-κB, and MAPK signalling in human bronchial epithelial cells. Arch Physiol Biochem 2022; 128:757-766. [PMID: 32057253 DOI: 10.1080/13813455.2020.1727525] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CONTEXT Astragaloside IV isolated from Astragalus membranaceus (Fisch.), which was reported to have anti-tumor, anti-asthma, and suppressed cigarette smoke-induced lung inflammation in mice. OBJECTIVES This study investigated whether astragaloside IV reduced the expression of inflammatory mediators and oxidative stress in BEAS-2B cells. METHODS BEAS-2B cells treated with astragaloside IV, and then stimulated with TNF-α or TNF-α/IL-4. The levels of cytokine and chemokine were analysed with ELISA and real-time PCR. RESULTS Astragaloside IV significantly inhibited the levels of CCL5, MCP-1, IL-6 and IL-8. Astragaloside IV also reduced ICAM-1 expression for blocked THP-1 monocyte adhesion to BEAS-2B cells. Furthermore, astragaloside IV attenuated the phosphorylation of MAPK, and reduced the translocation of p65 into the nucleus. Astragaloside IV could increase the expression of HO-1 and Nrf2 for promoting the oxidant protective effect. CONCLUSION Aastragaloside IV has an anti-inflammatory and oxidative effect via regulated NF-κB, MAPK and HO-1/Nrf2 signalling pathways in human bronchial epithelial cells.
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Affiliation(s)
- Hsi-Lung Hsieh
- Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan City, Taiwan
- Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taoyuan City, Taiwan
| | - Shih-Hai Liu
- School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ya-Ling Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Chien-Yi Huang
- Department of Trauma and Emergency Surgery, Chang Gung Memorial Hospital, Linkou, Taoyuan City, Taiwan
| | - Shu-Ju Wu
- Department of Nutrition and Health Sciences, Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Taoyuan City, Taiwan
- Aesthetic Medical Center, Department of Dermatology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
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7
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Chen J, Li C, Liang Z, Li C, Li Y, Zhao Z, Qiu T, Hao H, Niu R, Chen L. Human mesenchymal stromal cells small extracellular vesicles attenuate sepsis-induced acute lung injury in a mouse model: the role of oxidative stress and the mitogen-activated protein kinase/nuclear factor kappa B pathway. Cytotherapy 2021; 23:918-930. [PMID: 34272174 DOI: 10.1016/j.jcyt.2021.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND AIMS Acute lung injury (ALI) secondary to sepsis is a complex disease associated with high morbidity and mortality. Mesenchymal stem cells (MSCs) and their conditioned medium have been demonstrated to reduce alveolar inflammation, improve lung endothelial barrier permeability and modulate oxidative stress in vivo and in vitro. Recently, MSCs have been found to release small extracellular vesicles (sEVs) that can deliver functionally active biomolecules into recipient cells. The authors' study was designed to determine whether sEVs released by MSCs would be effective in sepsis-induced ALI mice and to identify the potential mechanisms. METHODS A total of 6 h after cercal ligation and puncture, the mice received saline, sEV-depleted conditioned medium (sEVD-CM) or MSC sEVs via the tail vein. RESULTS The administration of MSC sEVs improved pulmonary microvascular permeability and inhibited both histopathological changes and the infiltration of polymorphonuclear neutrophils into lung tissues. In addition, the activities of antioxidant enzymes were significantly increased in the group treated with sEVs compared with the saline and sEVD-CM groups, whereas lipid peroxidation was significantly decreased. Furthermore, sEVs were found to possibly inhibit phosphorylation of the mitogen-activated protein kinase/nuclear factor kappa B (MAPK/NF-κB) pathway and degradation of IκB but increase the activities of nuclear factor erythroid 2-related factor 2 and heme oxygenase 1. CONCLUSIONS These findings suggest that one of the effective therapeutic mechanisms of sEVs against sepsis-induced ALI may be associated with upregulation of anti-oxidative enzymes and inhibition of MAPK/NF-κB activation.
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Affiliation(s)
- Jie Chen
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China; Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Chonghui Li
- Department of Hepatobiliary Surgery, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China; Institute of Hepatobiliary Surgery, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Zhixin Liang
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Chunsun Li
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Yanqin Li
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Zhigang Zhao
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Tian Qiu
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Haojie Hao
- Institute of Basic Medicine Science, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China
| | - Ruichao Niu
- Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China.
| | - Liangan Chen
- Center of Pulmonary and Critical Care Medicine, Chinese People's Liberation Army General Hospital, Chinese People's Liberation Army Medical College, Beijing, China.
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Li L, Qu M, Yang L, Liu J, Wang Q, Zhong P, Zeng Y, Wang T, Xiao H, Liu D, Huang X, Wang J, Zhou J. Effects of Ultrashort Wave Therapy on Inflammation and Macrophage Polarization after Acute Lung Injury in Rats. Bioelectromagnetics 2021; 42:464-472. [PMID: 34130351 DOI: 10.1002/bem.22353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 03/25/2021] [Accepted: 05/27/2021] [Indexed: 02/05/2023]
Abstract
Acute lung injury (ALI) features dysregulated pulmonary inflammation. Ultrashort waves (USWs) exert anti-inflammatory effects but no studies have evaluated their activity in ALI. Herein, we used an in vivo lipopolysaccharide (LPS)-induced ALI model to investigate whether the anti-inflammatory activity of USWs is mediated by altering the polarization of M1 to M2 macrophages. Twenty-four male Sprague-Dawley rats were randomly divided into control, untreated ALI, and ALI treated with USW groups (n = 8 in each group). ALI was induced by intratracheal LPS instillation. Rats in the USW group were treated for 15 min at 0, 4, and 8 h after a single LPS intratracheal instillation. Histopathologic examination, wet/dry lung weight ratio, enzyme-linked immunosorbent assay, quantitative real-time polymerase chain reaction, and western blot analyses were performed to evaluate the degree of lung injury and to determine macrophage phenotypes. Histopathologic examination disclosed attenuation of ALI, with reduced alveolar hemorrhage and neutrophilic infiltration in the USW group. Serum levels of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were significantly decreased after USW therapy. Moreover, the messenger RNA (mRNA) expressions of TNF-α and IL-1β were significantly decreased in the USW group, whereas the mRNA expression of Arginase 1 (Arg1) and the protein expression of mannose receptor significantly increased in comparison with the untreated ALI group. We conclude that USW therapy may attenuate inflammation in LPS-induced ALI through the modulation of macrophage polarization. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Lan Li
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Mengjian Qu
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Lu Yang
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Jing Liu
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Qian Wang
- Department of Rehabilitation, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Peirui Zhong
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Yahua Zeng
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Ting Wang
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Hao Xiao
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Danni Liu
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Xiarong Huang
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Jinling Wang
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
| | - Jun Zhou
- Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.,Rehabilitation Laboratory, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China
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9
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Effect of Dexmedetomidine on Postoperative Lung Injury during One-Lung Ventilation in Thoracoscopic Surgery. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4976205. [PMID: 33083468 PMCID: PMC7557917 DOI: 10.1155/2020/4976205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/03/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023]
Abstract
Objective To investigate the effect of dexmedetomidine on postoperative lung injury in patients undergoing thoracoscopic surgery. Methods From March 2019 to October 2019, 40 patients were randomly divided into two groups: dexmedetomidine group (group D) and control group (group C). Except recording the general condition of the patients in both groups preoperatively and intraoperatively, the oxygenation index (OI) and alveolar-arterial oxygen partial pressure difference (A-aDO2) were monitored at admission (T0), immediately after one-lung ventilation (T1), 0.5 h after one-lung ventilation (T2), and 15 minutes after inhaling air before leaving the room (T3). The content of IL-8 in arterial blood was measured by enzyme-linked immunosorbent assay (ELISA) at T0 and T2, and the expression of AQP1 protein in isolated lung tissue was measured by immunohistochemistry and Western blot. The incidence of postoperative pulmonary complications (atelectasis, pneumonia, and acute respiratory distress syndrome) was used as the index of lung injury. Results There was no significant difference in the general condition before and during operation between the two groups. There was no significant difference in arterial blood IL-8 content between the two groups at the T0 time point, but the arterial blood IL-8 content at the T2 time point was significantly higher than that at the T0 time point, especially in group C. The results of immunohistochemistry and Western blot showed that the expression level of AQP1 protein in the isolated lung tissue of group D was significantly higher than that of group C (P < 0 05). At T3, the OI of group D was significantly higher than that of group C, and the A-aDO2 of group D was significantly lower than that of group C (P < 0.05). There was no significant difference in the incidence of postoperative PPCs between the two groups. Conclusion Dexmedetomidine can reduce the level of plasma IL-8 and upregulate the expression of AQP1 in the lung tissue of patients undergoing thoracoscopic surgery under one-lung ventilation, but it has no significant effect on the incidence of postoperative PPCs. Dexmedetomidine can be safely used in thoracoscopic surgery and has a certain protective effect on lung injury.
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Chen IJ, Hee SW, Liao CH, Lin SY, Su L, Shun CT, Chuang LM. Targeting the 15-keto-PGE2-PTGR2 axis modulates systemic inflammation and survival in experimental sepsis. Free Radic Biol Med 2018; 115:113-126. [PMID: 29175486 DOI: 10.1016/j.freeradbiomed.2017.11.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/14/2017] [Accepted: 11/19/2017] [Indexed: 12/21/2022]
Abstract
Sepsis is a systemic inflammation accompanied by multi-organ dysfunction due to microbial infection. Prostaglandins and their metabolites have long been studied for their importance in regulating the innate immune response. 15-keto-PGE2 (15k-PGE2) is a prostaglandin E2 (PGE2) metabolite, whose further processing is catalyzed by prostaglandin reductase 2 (PTGR2). We showed disruption of the Ptgr2 gene in mice improves the survival rate under both LPS- and cecum ligation/puncture (CLP)-induced experimental sepsis. Knockdown of PTGR2 showed significant accumulation of intracellular 15k-PGE2 in activated macrophages. Both PTGR2 knockdown and exogenous treatment with 15k-PGE2 resulted in reduced pro-inflammatory cytokines production in LPS-stimulated RAW264.7 cells or bone marrow-derived macrophages (BMDM). The same treatment in RAW264.7 and BMDM also led to increased levels of the anti-oxidative transcription factor, Nuclear factor (erythroid-2) related factor-2 (NRF2), augmented anti-oxidant response element (ARE)-mediated reporter activity and upregulated expression of the corresponding anti-oxidant genes. 15k-PGE2 further demonstrated modification to Kelch-like ECH-associated protein 1 (Keap1), a negative regulator of Nrf2, at cysteine 288 (Cys288) site post-translationally. Finally, 15k-PGE2-treated mice were found to be more resistant to experimental sepsis. Taken together, our study affirms the significance of PTGR2 and 15k-PGE2 in mitigating inflammatory responses and suggests a novel anti-oxidative and anti-inflammatory therapy for sepsis through targeting PTGR2 and administering15k-PGE2.
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Affiliation(s)
- Ing-Jung Chen
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Siow-Wey Hee
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chun-Hsing Liao
- Department of Internal Medicine, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - Shih-Yao Lin
- AbGenomics BV, Taiwan Branch, Neihu, Taipei, Taiwan
| | - Lynn Su
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Tung Shun
- Department of Forensic Medicine and Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Lee-Ming Chuang
- Institute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Korzeniewski SJ, Allred EN, Joseph RM, Heeren T, Kuban KC, O’Shea TM, Leviton A. Neurodevelopment at Age 10 Years of Children Born <28 Weeks With Fetal Growth Restriction. Pediatrics 2017; 140:peds.2017-0697. [PMID: 29030525 PMCID: PMC5654396 DOI: 10.1542/peds.2017-0697] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/21/2017] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES We sought to evaluate the relationships between fetal growth restriction (FGR) (both severe and less severe) and assessments of cognitive, academic, and adaptive behavior brain function at age 10 years. METHODS At age 10 years, the Extremely Low Gestational Age Newborns Cohort Study assessed the cognitive function, academic achievement, social-communicative function, psychiatric symptoms, and overall quality of life of 889 children born before 28 weeks' gestation. A pediatric epileptologist also interviewed parents as part of a seizure evaluation. The 52 children whose birth weight z scores were <-2 were classified as having severe FGR, and the 113 whose birth weight z scores were between -2 and -1 were considered to have less severe FGR. RESULTS The more severe the growth restriction in utero, the lower the level of function on multiple cognitive and academic achievement assessments performed at age 10 years. Growth-restricted children were also more likely than their extremely preterm peers to have social awareness impairments, autistic mannerisms, autism spectrum diagnoses, difficulty with semantics and speech coherence, and diminished social and psychosocial functioning. They also more frequently had phobias, obsessions, and compulsions (according to teacher, but not parent, report). CONCLUSIONS Among children born extremely preterm, those with severe FGR appear to be at increased risk of multiple cognitive and behavioral dysfunctions at age 10 years, raising the possibility that whatever adversely affected their intrauterine growth also adversely affected multiple domains of cognitive and neurobehavioral development.
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Affiliation(s)
- Steven J. Korzeniewski
- Department of Obstetrics and Gynecology, School of Medicine, Wayne State University, Detroit, Michigan;,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan
| | - Elizabeth N. Allred
- Department of Neurology, Boston Children’s Hospital, Boston, Massachusetts;,Department of Neurology, Harvard Medical School, Harvard University, Boston, Massachusetts
| | | | - Tim Heeren
- Department of Biostatistics, School of Public Health
| | - Karl C.K. Kuban
- Boston University, Boston, Massachusetts;,Departments of Pediatrics, Boston Medical Center, Boston, Massachusetts; and
| | - T. Michael O’Shea
- Department of Pediatrics, Wake Forest University, Winston-Salem, North Carolina
| | - Alan Leviton
- Department of Neurology, Boston Children’s Hospital, Boston, Massachusetts;,Department of Neurology, Harvard Medical School, Harvard University, Boston, Massachusetts
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Chen X, Zhang X, Zhang J, Gao Y, Yang Z, Li S, Dai H. Attenuation of acute lung injury in a rat model by Semen Cassiae. Altern Ther Health Med 2017; 17:234. [PMID: 28454544 PMCID: PMC5408400 DOI: 10.1186/s12906-017-1747-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/20/2017] [Indexed: 12/29/2022]
Abstract
Background Acute lung injury (ALI) is an inflammatory disorder. Semen Cassiae has potent anti-inflammatory activities. The aim of our study was to investigate whether Semen Cassiae plays a protective effect on lipopolysaccharide (LPS)-induced ALI and, if so, to elucidate its potential mechanism. Methods Male Sprague–Dawley rat lungs were injured by intratracheal instillation of LPS. Rats were treated with Semen Cassiae or vehicle 3 h after LPS challenge. Samples were harvested 24 h post-LPS administration. We also investigated the effects of Semen Cassiae on LPS stimulation in RAW 264.7 cells. Results LPS administration markedly induced pulmonary edema and polymorphonuclear neutrophil influxes. These changes were significantly attenuated in Semen Cassiae treated group. Moreover, Semen Cassiae markedly reduced pulmonary interleukin (IL)-6, tumor necrosis factor (TNF)-α, and 8-hydroxy-2′-deoxyguanosine (8-OHdG) levels. The pulmonary soluble epoxide hydrolase (sEH) activity and the DNA binding activity of Nuclear factor (NF)-κB were significantly inhibited in Semen Cassiae treated group. Furthermore, Semen Cassiae treatment significantly increased epoxyeicosatrienoic acids (EETs), and heme oxygenase-1 (HO-1) activity. Our in vitro study demonstrates that Semen Cassiae treatment may inhibit LPS induced IκBα phosphorylation and NF-κB p65 nucleus translocation. Conclusion Semen Cassiae protects LPS-induced ALI in rats. Semen Cassiae can be developed as a novel treatment for ALI. Electronic supplementary material The online version of this article (doi:10.1186/s12906-017-1747-7) contains supplementary material, which is available to authorized users.
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A new steroidal saponin, furotrilliumoside from Trillium tschonoskii inhibits lipopolysaccharide-induced inflammation in Raw264.7 cells by targeting PI3K/Akt, MARK and Nrf2/HO-1 pathways. Fitoterapia 2016; 115:37-45. [PMID: 27693742 DOI: 10.1016/j.fitote.2016.09.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 09/23/2016] [Accepted: 09/26/2016] [Indexed: 01/17/2023]
Abstract
A new steroidal saponin, furotrilliumoside (FT) was isolated from the roots and rhizomes of Trillium tschonoskii Maxim. Its structure was elucidated on the basis of 1D- and 2D-NMR spectroscopic data as well as HR-ESI-MS analysis. FT showed superior activity of inhibiting NO production of RAW264.7 cells induced by lipopolysaccharide (LPS) in the preliminary biological screening. In order to develop novel therapeutic drug for acute and chronic inflammatory disorders, the anti-inflammatory activity and underlying mechanism of FT were investigated in LPS-induced RAW264.7 cells. The results showed that FT could reduce LPS-induced expression of inducible nitric oxide synthase (iNOS) and then resulted in the decrement of NO production. More meaningful, FT could down-regulate the expression of cyclooxygenase-2 (COX-2) and decrease the expressions of pro-inflammatory cytokines, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β), in both gene and protein levels. In mechanism study, FT blocked the LPS-induced upregulation of phosphorylated phosphoinositide-3-kinase and Akt (PI3K/Akt). Furthermore, FT inhibited the translocation of nuclear factor-kappa B (NF-κB) through the prevention of inhibitory factor kappa B alpha (IκBα) phosphorylation and degradation and also suppressed the mitogen-activated protein kinases (MAPK) signaling pathway in LPS-stimulated RAW264.7 macrophages. In addition, FT upregulated heme oxygenase-1 (HO-1) expression via nuclear translocation of nuclear factor E2-related factor 2 (Nrf2). Taken together, FT might act as a natural agent to treat some inflammatory diseases by targeting PI3K/Akt, MARK and Nrf2/HO-1 pathways.
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Phloretin attenuates LPS-induced acute lung injury in mice via modulation of the NF-κB and MAPK pathways. Int Immunopharmacol 2016; 40:98-105. [PMID: 27588909 DOI: 10.1016/j.intimp.2016.08.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 08/11/2016] [Accepted: 08/26/2016] [Indexed: 12/29/2022]
Abstract
Phloretin, which can be isolated from apple trees, has demonstrable anti-inflammatory and anti-oxidant effects in macrophages. We previously reported that phloretin could inhibit the inflammatory response and reduce intercellular adhesion molecule 1 (ICAM-1) expression in interleukin (IL)-1β-activated human lung epithelial cells. In the present study we now evaluate whether phloretin exposure could ameliorate lipopolysaccharide (LPS)-induced acute lung injury in mice. Intra-peritoneal injections of phloretin were administered to mice for 7 consecutive days, prior to the induction of lung injury by intra-tracheal administration of LPS. Our subsequent analyses demonstrated that phloretin could significantly suppress LPS-induced neutrophil infiltration of lung tissue, and reduce the levels of IL-6 and tumor necrosis factor (TNF)-α in serum and bronchoalveolar lavage fluid. We also found that phloretin modulated myeloperoxidase activity and superoxide dismutase activity, with decreased gene expression levels for chemokines, proinflammatory cytokines, and ICAM-1 in inflamed lung tissue. Phloretin also significantly reduced the phosphorylation of nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK), thus limiting the inflammatory response, while promoting expression of heme oxygenase (HO)-1 and nuclear factor erythroid 2-related factor 2, both of which are cytoprotective. Our findings suggest that, mechanistically, phloretin attenuates the inflammatory and oxidative stress pathways that accompany lung injury in mice via blockade of the NF-κB and MAPK pathways.
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Ketamine reduces LPS-induced HMGB1 via activation of the Nrf2/HO-1 pathway and NF-κB suppression. J Trauma Acute Care Surg 2015; 78:784-92. [PMID: 25807407 DOI: 10.1097/ta.0000000000000588] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Ketamine, as an anesthetic agent, has an anti-inflammatory effect. In the present study, we investigated whether ketamine inhibits release of high mobility group box 1 (HMGB1), a late-phase cytokine of sepsis, in lipopolysaccharide (LPS)-stimulated macrophages through heme oxygenase-1 (HO-1) induction. METHODS Macrophages were preincubated with various concentrations of ketamine and then treated with LPS (1 μg/mL). The cell culture supernatants were collected to measure inflammatory mediators (HMGB1, nitric oxide, tumor necrosis factor-α, and interleukin 1β) by enzyme-linked immunosorbent assay. Moreover, HO-1 protein expression, the phosphorylation and degradation of IκB-α, and the nuclear translocation of nuclear factor E2-related factor 2 and nuclear factor κB (NF-κB) p65 were tested by Western blot analysis. In addition, to further identify the role of HO-1 in this process, tin protoporphyrin (SnPP), an HO-1 inhibitor, was used. RESULTS Ketamine treatment dose-dependently attenuated the increased levels of proinflammatory mediators (HMGB1, nitric oxide, tumor necrosis factor α, and interleukin 1β) and increased the HO-1 protein expression in LPS-activated macrophages. Furthermore, ketamine suppressed the phosphorylation and degradation of IκB-α as well as the LPS-stimulated nuclear translocation of NF-κB p65 in macrophages. In addition, the present study also demonstrated that ketamine induced HO-1 expression through the nuclear translocation of nuclear factor E2-related factor 2 in macrophages. The effects of ketamine on LPS-induced proinflammatory cytokines production were partially reversed by the HO inhibitor tin protoporphyrin (SnPP). CONCLUSION Ketamine inhibits the release of HMGB1 in LPS-stimulated macrophages, and this effect is at least partly mediated by the activation of the Nrf2/HO-1 pathway and NF-κB suppression.
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Motovali-Bashi M, Hamidy M. Association between GT-repeat polymorphism at heme oxygenase-1 gene promoter and gastric cancer and metastasis. Tumour Biol 2015; 36:4757-62. [PMID: 25956277 DOI: 10.1007/s13277-015-3125-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/19/2015] [Indexed: 11/28/2022] Open
Abstract
HO-1 gene encodes heme oxygenase-1 enzyme that catalyzes the oxidation of heme to carbon monoxide (CO). It has also been suggested that cells could be protected by the enzyme against stress. A (GT) n dinucleotide repeat at HO-1 promoter is a polymorphic region and modulates gene transcription and associated with some of diseases. In this study, length of polymorphism GT tandem repeat has been determined and classified into two alleles short (≤28) and long (≥29). In present study, association between GT-repeat polymorphism at heme oxygenase-1 gene promoter and increased risk of gastric cancer and metastasis was investigated. Blood samples from 100 control individuals and 60 gastric cancer cases had taken. Genotypic frequencies of (GT) n repeat for samples were determined using PCR technique and polyacrylamide PAGE electrophoresis. At final, higher frequency alleles were sequenced. Our results show that S-allele is significantly higher in cases in comparison with control groups (p = 0/000, odds ratio (OR) = 4/154). It has been shown that individuals with S/S and S/L genotypes are at high risk of having gastric cancer (p = 0/000, OR = 3/789). Statistic data show association between SS genotype and risk of gastric cancer metastasis (p = 0.017, OR = 3.889). But, there is no significant association between clinicopathological characteristics of the patients and risk of gastric cancer metastasis (p > 0.05). Significant association was found between short allele (SS + SL genotypes) and risk of gastric cancer, and also strong association was found between SS genotype and risk of gastric cancer metastasis.
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Affiliation(s)
- M Motovali-Bashi
- Genetic Division, Biology Department, Faculty of Sciences, University of Isfahan, Isfahan, Islamic Republic of Iran,
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Phloretin ameliorates chemokines and ICAM-1 expression via blocking of the NF-κB pathway in the TNF-α-induced HaCaT human keratinocytes. Int Immunopharmacol 2015; 27:32-7. [PMID: 25929446 DOI: 10.1016/j.intimp.2015.04.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/11/2015] [Accepted: 04/13/2015] [Indexed: 11/20/2022]
Abstract
Previous studies found that phloretin had anti-oxidant, anti-inflammatory, and anti-tumor properties. In this study, we investigated whether phloretin could suppress the production of the intercellular adhesion molecule (ICAM)-1 and chemokines through downregulation of the nuclear transcription factor kappa-B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways in TNF-α-stimulated HaCaT human keratinocytes. HaCaT cells were treated with phloretin and then the cells were stimulated by TNF-α. Phloretin treatment decreased the production of IL-6, IL-8, CCL5, MDC, and TARC. Phloretin decreased ICAM-1 protein and mRNA expression, and also suppressed the adhesion of monocyte THP-1 cells to inflammatory HaCaT cells. Phloretin inhibited NF-κB translocation into the nucleus and also suppressed the phosphorylation of Akt and MAPK signal. In addition, phloretin increased heme oxygenase-1 production in a concentration-dependent manner. These results demonstrated that phloretin has anti-inflammatory effects to inhibit chemokines and ICAM-1 expressions through suppression of the NF-κB and MAPK pathways in human keratinocytes.
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Liou CJ, Len WB, Wu SJ, Lin CF, Wu XL, Huang WC. Casticin inhibits COX-2 and iNOS expression via suppression of NF-κB and MAPK signaling in lipopolysaccharide-stimulated mouse macrophages. JOURNAL OF ETHNOPHARMACOLOGY 2014; 158 Pt A:310-316. [PMID: 25446583 DOI: 10.1016/j.jep.2014.10.046] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/01/2014] [Accepted: 10/22/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fruits of Vitex rotundifolia L. are widely used to treat inflammation of the airway in Traditional Chinese medicine. Previous studies found that casticin, isolated from Vitex rotundifolia, could induce apoptosis of tumor cells. In this study, we evaluated the anti-inflammatory effects of casticin and its underlying molecular mechanism in lipopolysaccharide (LPS)-stimulated macrophages. MATERIALS AND METHODS RAW264.7 cells were pretreated with various concentrations of casticin (0.3-10μM), and then treated with LPS to induce inflammation. We assayed the levels of proinflammatory cytokines and prostaglandin E2 (PGE2) using ELISA, and examined the protein expression of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, and heme oxygenase (HO)-1 by Western blot. We also investigated the anti-inflammatory molecular mechanism by analyzing inflammatory-associated signaling pathways, including the nuclear transcription factor kappa-B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways. RESULTS We found casticin inhibited the levels of nitric oxide and PGE2, and decreased the production of proinflammatory cytokines such as interleukin (IL)-1β, IL-6, and tumor necrosis factor α (TNF-α). In addition, iNOS and COX-2 expression levels were suppressed and casticin increased HO-1 and Nrf2 production in a concentration-dependent manner. Furthermore, casticin significantly inhibited NF-κB subunit p65 proteins in the nucleus and decreased Akt and MAPK activation. CONCLUSION These results suggest that the anti-inflammatory effect of casticin is due to inhibition of proinflammatory cytokines and mediators by blocking the NF-κB, Akt, and MAPK signaling pathways.
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Affiliation(s)
- Chian-Jiun Liou
- Department of Nursing, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Wen-Bin Len
- Department of Nursing, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Shu-Ju Wu
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Chwan-Fwu Lin
- Department of Cosmetic Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Xin-Ling Wu
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC
| | - Wen-Chung Huang
- Department of Nutrition and Health Sciences, Chang Gung University of Science and Technology, 261 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC; Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC; Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Kwei-Shan, Tao-Yuan 333, Taiwan, ROC.
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Protective Effect of Adenoviral Transfer of Heme Oxygenase-1 Gene on Rats With Severe Acute Pancreatitis. Am J Med Sci 2014; 348:224-31. [PMID: 24694788 DOI: 10.1097/maj.0000000000000225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Improvement of ventilation-induced lung injury in a rodent model by inhibition of inhibitory κB kinase. J Trauma Acute Care Surg 2014; 76:1417-24. [DOI: 10.1097/ta.0000000000000229] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kim B, Song JH, Lee M. Combination of TAT-HMGB1A and R3V6 amphiphilic peptide for plasmid DNA delivery with anti-inflammatory effect. J Drug Target 2014; 22:739-47. [DOI: 10.3109/1061186x.2014.916711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Shu YS, Tao W, Miao QB, Lu SC, Zhu YB. Galangin Dampens Mice Lipopolysaccharide-Induced Acute Lung Injury. Inflammation 2014; 37:1661-8. [DOI: 10.1007/s10753-014-9894-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Tsai CL, Lin YC, Wang HM, Chou TC. Baicalein, an active component of Scutellaria baicalensis, protects against lipopolysaccharide-induced acute lung injury in rats. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:197-206. [PMID: 24534526 DOI: 10.1016/j.jep.2014.02.010] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 02/05/2014] [Accepted: 02/08/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Baicalein (BE), a phenolic flavonoid extracted mainly from the root of Scutellaria baicalensis Georgi, a Chinese herb, is traditionally used in oriental medicine. Several studies have demonstrated that BE exerts many beneficial effects including anti-inflammatory and antioxidant activities. However, its effect on acute lung injury (ALI) and the molecular mechanisms involved remain unclear and warrant further investigation. The aim of the study is to investigate whether BE improves lipopolysaccharide (LPS, intratracheally, i.t.)-induced ALI in rats, and further study the underlying mechanisms of its activity. MATERIAL AND METHODS Rats were administrated with LPS (5mg/kg/body weight, i.t.) through a 24-gauge catheter to establish the ALI model. The effects of BE on the levels of pro-inflammatory cytokines, nitrite/nitrate in bronchoalveolar lavage fluid, and the expression of nuclear factor-erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1) and nuclear factor-kappa B (NF-κB) activation as well as the histopathological changes were evaluated. RESULTS Results showed that BE (20mg/kg, i.p.) treatment markedly attenuated LPS-induced lung edema, elevation of the levels of IL-1β, TNF-α, IL-6, CINC-3, and nitrite/nitrate in bronchoalveolar lavage fluid accompanied by a remarkable improvement of lung histopathological symptoms. The LPS-enhanced inflammatory cell infiltration and myeloperoxidase activity, O2(-) formation and the expression of inducible nitric oxide synthase and nitrotyrosin in lungs were all attenuated by BE. Notably, BE could augment Nrf2/HO-1 cascade, but inhibited NF-κB activation in LPS-instilled lungs that was strongly reversed by blocking HO-1 activity. CONCLUSION This study is the first to demonstrate that BE protects against LPS-induced ALI in rats. The underlying mechanisms may include inhibition of NF-κB-mediated inflammatory responses and upregulation of Nrf2/HO-1 pathway, which ultimately alleviates the pathological symptoms of ALI.
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Affiliation(s)
- Chen-Liang Tsai
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, Taipei, Taiwan
| | - Yu-Chieh Lin
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Hui-Min Wang
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tz-Chong Chou
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; China Medical University Hospital, China Medical University, Taichung, Taiwan.
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Wun ZY, Lin CF, Huang WC, Huang YL, Xu PY, Chang WT, Wu SJ, Liou CJ. Anti-inflammatory effect of sophoraflavanone G isolated from Sophora flavescens in lipopolysaccharide-stimulated mouse macrophages. Food Chem Toxicol 2013; 62:255-61. [DOI: 10.1016/j.fct.2013.08.072] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 08/19/2013] [Accepted: 08/26/2013] [Indexed: 01/15/2023]
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Chatterton DE, Nguyen DN, Bering SB, Sangild PT. Anti-inflammatory mechanisms of bioactive milk proteins in the intestine of newborns. Int J Biochem Cell Biol 2013; 45:1730-47. [DOI: 10.1016/j.biocel.2013.04.028] [Citation(s) in RCA: 251] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 04/25/2013] [Accepted: 04/28/2013] [Indexed: 01/04/2023]
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Liu FC, Yu HP, Hwang TL, Tsai YF. Protective effect of tropisetron on rodent hepatic injury after trauma-hemorrhagic shock through P38 MAPK-dependent hemeoxygenase-1 expression. PLoS One 2012; 7:e53203. [PMID: 23285267 PMCID: PMC3532400 DOI: 10.1371/journal.pone.0053203] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 11/26/2012] [Indexed: 01/15/2023] Open
Abstract
Tropisetron can decrease inflammatory cell responses and alleviate organ damage caused by trauma-hemorrhage, but the mechanism of these effects remains unknown. The p38 mitogen-activated protein kinase/hemeoxygenase-1 (p38 MAPK/HO-1) pathway exerts anti-inflammatory effects on different tissues. The aim of this study was to investigate whether p38 MAPK/HO-1 plays any role in the tropisetron-mediated attenuation of hepatic injury after trauma-hemorrhage. Male Sprague-Dawley rats underwent trauma-hemorrhage (mean blood pressure maintained at approximately 35–40 mmHg for 90 min), followed by fluid resuscitation. During resuscitation, several treatment regimens were administered: four doses of tropisetron alone (0.1, 0.3, 1, 3 mg/kg body weight), or a single dose of tropisetron (1 mg/kg body weight) with and without a p38 MAPK inhibitor (SB-203580, 2 mg/kg body weight) or HO antagonist (chromium-mesoporphyrin, 2.5 mg/kg body weight). Various parameters were measured, and the animals were sacrificed at 24 h post-resuscitation. The results showed that trauma-hemorrhage increased the following parameters: plasma concentrations of aspartate (AST) and alanine aminotransferases (ALT), hepatic myeloperoxidase (MPO) activity, and levels of cytokine-induced neutrophil chemoattractant-1 and -3 (CINC-1 and CINC-3), intercellular adhesion molecule-1 (ICAM-1), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and macrophage inflammatory protein-1α (MIP-1α). These parameters were significantly improved in the tropisetron-treated rats subjected to trauma-hemorrhage. Tropisetron treatment also increased hepatic p38 MAPK and HO-1 expression compared with vehicle-treated trauma-hemorrhaged rats. Co-administration of SB-203580 or chromium-mesoporphyrin with tropisetron abolished the tropisetron-induced beneficial effects on the above parameters and hepatic injury. These results suggest that the protective effect of tropisetron administration on alleviation of hepatic injury after trauma-hemorrhage is likely mediated through p38 MAPK-dependent HO-1 expression.
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Affiliation(s)
- Fu-Chao Liu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Huang-Ping Yu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- * E-mail:
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, Taiwan
| | - Yung-Fong Tsai
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
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