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Lin Y, Zhang M, Lu Q, Xie J, Wu J, Chen C. A novel chalcone derivative exerts anti-inflammatory and anti-oxidant effects after acute lung injury. Aging (Albany NY) 2019; 11:7805-7816. [PMID: 31553308 PMCID: PMC6781971 DOI: 10.18632/aging.102288] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 09/09/2019] [Indexed: 12/12/2022]
Abstract
We explored the effects of compound 33, a synthetic chalcone derivative with antioxidant activity, on lipopolysaccharide (LPS)-induced acute lung injury (ALI). Compound 33, dexamethasone or vehicle was administered intragastrically to mice 6 h before intratracheal instillation of LPS. After 24 h, the effects of compound 33 on alveolar structural damage were evaluated by assessing lung morphology and the wet/dry weight ratio. Protein and proinflammatory cytokine levels and superoxide dismutase activity were also examined in the cell free supernatant of bronchoalveolar lavage fluid. Additionally, we investigated the anti-inflammatory and antioxidant activity of compound 33 in vitro and its effects on the MAPK/NF-κB and Nrf2/HO-1 pathways. Pretreatment with compound 33 prevented LPS-induced structural damage, tissue edema, protein exudation, and overproduction of proinflammatory mediators. The effects of compound 33 were similar to or greater in magnitude than those of the positive control, dexamethasone. Moreover, compound 33 exerted anti-inflammatory and antioxidant effects in vitro by inhibiting the MAPK/NF-κB pathway and activating the Nrf2/HO-1 pathway. Compound 33 may therefore be a promising candidate treatment for ALI.
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Affiliation(s)
- Yuting Lin
- Department of Pulmonary Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325006, China
| | - Man Zhang
- Department of Orthopedics, The Second Affiliated Hospital Zhejiang University School of Medicine, Zhejiang 325000, China
| | - Qingdi Lu
- Department of Pulmonary Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325006, China
| | - Jingwen Xie
- Department of Pharmacy, Pharmacy School, Wenzhou Medical University, Wenzhou, Zhejiang 325006, China
| | - Jianzhang Wu
- Department of Pharmacy, Pharmacy School, Wenzhou Medical University, Wenzhou, Zhejiang 325006, China
| | - Chengshui Chen
- Department of Pulmonary Medicine, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325006, China
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Pei X, Zhang XJ, Chen HM. Bardoxolone treatment alleviates lipopolysaccharide (LPS)-induced acute lung injury through suppressing inflammation and oxidative stress regulated by Nrf2 signaling. Biochem Biophys Res Commun 2019; 516:270-277. [PMID: 31248593 DOI: 10.1016/j.bbrc.2019.06.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 06/01/2019] [Indexed: 01/01/2023]
Abstract
Nuclear factor-erythroid 2 related factor 2 (Nrf2) plays critical roles in attenuating various inflammation- and oxidative stress-induced diseases, including acute lung injury (ALI). Bardoxolone (Bard), a synthetic triterpenoid based on natural product oleanolic acid, is one of the most potent Nrf2 activator. However, if Bard could prevent lipopolysaccharide (LPS)-induced ALI by inducing Nrf2 activation and its down-streaming signals, is still poorly understood. In this study, we attempted to explore the protective effect of Bard on ALI and the underlying molecular mechanisms. The results indicated that Bard significantly attenuated ALI through reducing the lung wet/dry weight ratio and protein concentration, neutrophil infiltration, malondialdehyde (MDA) and myeloperoxidase (MPO) levels, and improving superoxide dismutase (SOD) and glutathione (GSH) activities. In addition, Bard effectively ameliorated histopathological alterations, reactive oxygen species (ROS) production, pro-inflammatory cytokines release, and the expression of inducible NO synthase (iNOS), cyclooxygenase-2 (COX2) and high mobility group box 1 (HMGB1). Moreover, the inhibitory role of Bard in inflammation was also attributed to its suppression of nuclear factor-κB (NF-κB) signaling. Furthermore, the activation of mitogen-activated protein kinases (MAPKs) signaling, including p38, extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinase (JNK), induced by LPS was substantially ameliorated by Bard. The beneficial effects of Bard on ALI were confirmed in LPS-incubated cells in vitro. Meanwhile, the in vitro studies also demonstrated that Bard-improved ALI was largely due to its role in inducing Nrf2 signaling through a dose-dependent manner. Importantly, we found that Bard-attenuated histological changes, inflammation, ROS production, NF-κB and MAPKs signaling in Nrf2+/+ mice were significantly abolished in mice with Nrf2 knockout. Therefore, our study for the first time provided evidence that Bard could effectively ameliorate LPS-induced ALI by reducing oxidative stress and inflammation mainly through the activation of Nrf2 signaling.
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Affiliation(s)
- Xianfeng Pei
- Department of Endocrinology, Ankang Central Hospital, Shaanxi, 725000, China
| | - Xiao-Jun Zhang
- Department of Endocrinology, Ankang Central Hospital, Shaanxi, 725000, China
| | - He-Ming Chen
- Department of Endocrinology, Ankang Central Hospital, Shaanxi, 725000, China.
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Chen Y, Dong J, Liu J, Xu W, Wei Z, Li Y, Wu H, Xiao H. Network Pharmacology-Based Investigation of Protective Mechanism of Aster tataricus on Lipopolysaccharide-Induced Acute Lung Injury. Int J Mol Sci 2019; 20:E543. [PMID: 30696024 PMCID: PMC6387216 DOI: 10.3390/ijms20030543] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/20/2019] [Accepted: 01/25/2019] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) is a common clinical condition that badly influences people's health. Recent studies indicated that Aster tataricus (RA) had potential effects on ALI, but the effective components and their mechanism is not clear. In this study, we found that the Fraction-75 eluted from RA extract could significantly protect the lipopolysaccharide (LPS)-induced ALI in mice, including alleviating the severity of lung pathology, attenuating the pulmonary edema, and reducing the release of inflammatory cells. Further ingredient analyses demonstrated that there were mainly 16 components in it, among which 10 components were collected according to their relative peak area and oral bioavailability. Next, the components-disease targets network suggested that the candidate components had extensive associations with 49 known therapeutic targets of ALI, among which 31 targets could be regulated by more than one component. Herein, GO functional and pathway analysis revealed that the common targets were associated with four biological processes, including the inflammatory response to stimulus, cellular process, chemokine biosynthetic process and immune system process. Furthermore, the ELISA validation indicated that the candidate components in RA extract may protect the LPS-induced ALI mainly through inhibiting the release of inflammatory cytokines and promoting the repair of vascular endothelial.
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Affiliation(s)
- Yijun Chen
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Jiaojiao Dong
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Jie Liu
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Wenjuan Xu
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Ziyi Wei
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Yueting Li
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Hao Wu
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Hongbin Xiao
- Research Center of Chinese Medicine Analysis and Transformation & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China.
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Xiaoli L, Wujun Z, Jing L. Blocking of tripartite motif 8 protects against lipopolysaccharide (LPS)-induced acute lung injury by regulating AMPKα activity. Biochem Biophys Res Commun 2019; 508:701-708. [DOI: 10.1016/j.bbrc.2018.11.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 11/12/2018] [Indexed: 12/28/2022]
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Huang Y, Huang L, Zhu G, Pei Z, Zhang W. Downregulated microRNA-27b attenuates lipopolysaccharide-induced acute lung injury via activation of NF-E2-related factor 2 and inhibition of nuclear factor κB signaling pathway. J Cell Physiol 2018; 234:6023-6032. [PMID: 30584668 DOI: 10.1002/jcp.27187] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 07/17/2018] [Indexed: 12/28/2022]
Abstract
Acute lung injury (ALI) is a life-threatening, diffuse heterogeneous lung injury characterized by acute onset, pulmonary edema, and respiratory failure. Lipopolysaccharide (LPS) is a leading cause for ALI and when administered to a mouse it induces a lung phenotype exhibiting some of the clinical characteristics of human ALI. This study focused on investigating whether microRNA-27b (miR-27b) affects ALI in a mouse model established by LPS-induction and to further explore the underlying mechanism. After model establishment, the mice were treated with miR-27b agomir, miR-27b antagomir, or D-ribofuranosylbenzimidazole (an inhibitor of nuclear factor-E2-related factor 2 [Nrf2]) to determine levels of miR-27b, Nrf2, nuclear factor kappa-light-chain-enhancer of activated B cells nuclear factor κB (NF-κB), p-NF-κB, and heme oxygenase-1 (HO-1). The levels of interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α) in bronchoalveolar lavage fluid (BALF) were determined. The results of luciferase activity suggested that Nrf2 was a target gene of miR-27b. It was indicated that the Nrf2 level decreased in lung tissues from ALI mice. The downregulation of miR-27b decreased the levels of IL-1β, IL-6, and TNF-α in BALF of ALI mice. Downregulated miR-27b increased Nrf2 level, thus enhancing HO-1 level along with reduction of NF-κB level as well as the extent of NF-κB phosphorylation in the lung tissues of the transfected mice. Pathological changes were ameliorated in LPS-reduced mice elicited by miR-27b inhibition. The results of this study demonstrate that downregulated miR-27b couldenhance Nrf2 and HO-1 expressions, inhibit NF-κB signaling pathway, which exerts a protective effect on LPS-induced ALI in mice.
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Affiliation(s)
- Yan Huang
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Lixue Huang
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Guangfa Zhu
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Zhenye Pei
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
| | - Wenmei Zhang
- Department of Pulmonary and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, China
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Zhang Q, Nie J, Chen SJ, Li Q. Protective effects of ethyl gallate and pentagalloylglucose, the active components of Qingwen Baidu Decoction, against lipopolysaccharide-induced acute lung injury in rats. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 13:71-77. [PMID: 30587929 PMCID: PMC6304083 DOI: 10.2147/dddt.s186029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background The aim of this study was to investigate the bioactive constituents of Qingwen Baidu Decoction (QBD) in a rat model of acute lung injury (ALI) induced by lipopolysaccharide (LPS). Our previous studies showed that ethyl gallate (EG) and pentagalloylglucose (PGG) were the active components of QBD for the treatment of ALI. Materials and methods We isolated two compounds and identified the structures of them by nuclear magnetic resonance and mass spectrometer. Lung injury was induced by intratracheal instillation with LPS (5 mg/kg). Rats were randomly divided into six groups: Control group; LPS group; 5 mL/kg DEX + LPS group; 6.6 g/kg QBD extract + LPS group; 17.16 mg/kg PGG + LPS group; 7.26 mg/kg EG + LPS group. The effects of compounds on LPS-induced the number of total cells, neutrophils influx, protein leakage, W/D weight ratio and pulmonary histological changes were examined. Results The results demonstrated that pretreatment with EG and PGG could notably inhibit lung edema and attenuate the pulmonary histological changes (P<0.05). The pretreatment also decreased the number of total cells and polymorphonuclear leukocytes in bronchoalveolar lavage fluid (BALF) (P<0.05). Conclusion Ethyl gallate and pentagalloylglucose of QBD played a protective role in preventing LPS-induced ALI. The results supported further study of EG and PGG as potential candidates for preventing ALI.
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Affiliation(s)
- Qi Zhang
- Department of Natural Medicine, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350122, China,
| | - Jing Nie
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China,
| | - Su-Juan Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China,
| | - Qiang Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China,
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Jiang L, Song H, Guo H, Wang C, Lu Z. RETRACTED: Baicalein inhibits proliferation and migration of bladder cancer cell line T24 by down-regulation of microRNA-106. Biomed Pharmacother 2018; 107:1583-1590. [DOI: 10.1016/j.biopha.2018.08.107] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 08/14/2018] [Accepted: 08/22/2018] [Indexed: 01/22/2023] Open
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Dai L, Zhang G, Cheng Z, Wang X, Jia L, Jing X, Wang H, Zhang R, Liu M, Jiang T, Yang Y, Yang M. Knockdown of LncRNA MALAT1 contributes to the suppression of inflammatory responses by up-regulating miR-146a in LPS-induced acute lung injury. Connect Tissue Res 2018; 59:581-592. [PMID: 29649906 DOI: 10.1080/03008207.2018.1439480] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Acute lung injury (ALI) is a type of severe pulmonary inflammatory disease with high rates of morbidity and mortality. Now, an increasing number of studies suggest that lncRNAs may act as key regulators of the inflammatory response and play a crucial role in the pathogenesis of many inflammatory diseases. Our study firstly explored the function and underlying mechanism of lncRNA metastasis-associated lung adenocarcinoma transcription 1 (MALAT1) in regulating the inflammatory response of lipopolysaccharide (LPS)-induced ALI in rats. METHODS The ALI rats were constructed by intratracheal instillation with LPS. Hematoxylin and eosin (HE) for histological examination were performed to detect histopathological changes in the lung tissues. Enzyme-linked immunosorbent assay (ELISA) was used to determine the concentrations of cytokines TNF-α, IL-6, and IL-1β in the supernatants of the bronchoalveolar lavage fluid (BALF). Quantitative real-time PCR (qRT-PCR) analysis was employed to assess the expression of MALAT1, miR-146a, TNF-α, IL-6, and IL-1β in lung tissues. Luciferase reporter assay and RNA immunoprecipitation (RIP) assay were used to detect the relationship between MALAT1 and miR-146a. RESULTS The results revealed that MALAT1 knockdown played a protective role in the LPS-induced ALI rat model. In addition, knockdown of MALAT1 in vitro inhibited LPS-induced inflammatory response in murine alveolar macrophages cell line MH-S and murine alveolar epithelial cell line MLE-12. This study found that MALAT1 acts as a molecular sponge for miR-146a and MALAT1 negatively regulated miR-146a expression. Mechanistically, MALAT1 overexpression alleviated the inhibitory effect of miR-146a on LPS-induced inflammatory response in MH-S. CONCLUSIONS Together, our study provided the first evidence that MALAT1 knockdown could suppress inflammatory response by up-regulating miR-146a in LPS-induced ALI, which provided a potential therapeutic target for the treatment of ALI.
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Affiliation(s)
- Lingling Dai
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Guojun Zhang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Zhe Cheng
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Xi Wang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Liuqun Jia
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Xiaogang Jing
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Huan Wang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Rui Zhang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Meng Liu
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Tianci Jiang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Yuanjian Yang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
| | - Meng Yang
- a Department of respiration , Hospital of Zhengzhou University , Zhengzhou , China
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Zuo AR, Dong HH, Yu YY, Shu QL, Zheng LX, Yu XY, Cao SW. The antityrosinase and antioxidant activities of flavonoids dominated by the number and location of phenolic hydroxyl groups. Chin Med 2018; 13:51. [PMID: 30364385 PMCID: PMC6194685 DOI: 10.1186/s13020-018-0206-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 09/06/2018] [Indexed: 01/27/2023] Open
Abstract
Background Compounds with the ability to scavenge reactive oxygen species (ROS) and inhibit tyrosinase may be useful for the treatment and prevention from ROS-related diseases. The number and location of phenolic hydroxyl of the flavonoids will significantly influence the inhibition of tyrosinase activity. Phenolic hydroxyl is indispensable to the antioxidant activity of flavonoids. Isoeugenol, shikonin, baicalein, rosmarinic acid, and dihydromyricetin have respectively one, two, three, four, or five phenolic hydroxyls. The different molecular structures with the similar structure to l-3,4-dihydroxyphenylalanine (l-DOPA) were expected to the different antityrosinase and antioxidant activities. Methods This investigation tested the antityrosinase activity, the inhibition constant, and inhibition type of isoeugenol, shikonin, baicalein, rosmarinic acid, and dihydromyricetin. Molecular docking was examined by the Discovery Studio 2.5 (CDOCKER Dock, Dassault Systemes BIOVIA, USA). This experiment also examined the antioxidant effects of the five compounds on supercoiled pBR322 plasmid DNA, lipid peroxidation in rat liver mitochondria in vitro, and DPPH, ABTS, hydroxyl, or superoxide free radical scavenging activity in vitro. Results The compounds exhibited good antityrosinase activities. Molecular docking results implied that the compounds could interact with the amino acid residues in the active site center of antityrosinase. These compounds also exhibited antioxidant effects on DPPH, ABTS, hydroxyl, or superoxide free radical scavenging activity in vitro, lipid peroxidation in rat liver mitochondria induced by Fe2+/vitamin C system in vitro, and supercoiled pBR322 plasmid DNA. The activity order is isoeugenol < shikonin < baicalein < rosmarinic acid < dihydromyricetin. The results showed the compounds with more phenolic hydroxyls have more antioxidant and antityrosinase activities. Conclusion This was the first study of molecular docking for modeling the antityrosinase activity of compounds. This was also the first study of the protective effects of compounds on supercoiled pBR322 plasmid DNA, the lipid peroxidation inhibition activity in liver mitochondria. These results suggest that the compounds exhibited antityrosinase and antioxidant activities may be useful in skin pigmentation and food additives. Electronic supplementary material The online version of this article (10.1186/s13020-018-0206-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ai-Ren Zuo
- 1State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047 Jiangxi China.,2Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi China
| | - Huan-Huan Dong
- 2Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi China
| | - Yan-Ying Yu
- 3Department of Chemistry, Nanchang University, Nanchang, Jiangxi China
| | - Qing-Long Shu
- 2Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi China
| | - Li-Xiang Zheng
- 2Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi China
| | - Xiong-Ying Yu
- 2Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi China
| | - Shu-Wen Cao
- 1State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047 Jiangxi China.,3Department of Chemistry, Nanchang University, Nanchang, Jiangxi China
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Hsieh YH, Deng JS, Chang YS, Huang GJ. Ginsenoside Rh2 Ameliorates Lipopolysaccharide-Induced Acute Lung Injury by Regulating the TLR4/PI3K/Akt/mTOR, Raf-1/MEK/ERK, and Keap1/Nrf2/HO-1 Signaling Pathways in Mice. Nutrients 2018; 10:nu10091208. [PMID: 30200495 PMCID: PMC6163254 DOI: 10.3390/nu10091208] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/16/2018] [Accepted: 08/30/2018] [Indexed: 12/19/2022] Open
Abstract
The anti-inflammatory effect of ginsenoside Rh2 (GRh2) has labeled it as one of the most important ginsenosides. The purpose of this study was to identify the anti-inflammatory and antioxidant effects of GRh2 using a lipopolysaccharide (LPS) challenge lung-injury animal model. GRh2 reduced LPS-induced proinflammatory mediator nitric oxide (NO), tumor necrosis factor-alpha, interleukin (IL)-1β, and anti-inflammatory cytokines (IL-4, IL-6, and IL-10) production in lung tissues. GRh2 treatment decreased the histological alterations in the lung tissues and bronchoalveolar lavage fluid (BALF) protein content; total cell number also reduced in LPS-induced lung injury in mice. Moreover, GRh2 blocked iNOS, COX-2, the phosphorylation of IκB-α, ERK, JNK, p38, Raf-1, and MEK protein expression, which corresponds with the growth of HO-1, Nrf-2, catalase, SOD, and GPx expression in LPS-induced lung injury. An in vivo experimental study suggested that GRh2 has anti-inflammatory effects, and has potential therapeutic efficacy in major anterior segment lung diseases.
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Affiliation(s)
- Yung-Hung Hsieh
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 413, Taiwan.
- Department of Pharmacy, Kuang Tien General Hospital, Taichung 433, Taiwan.
- Taichung City New Pharmacist Association, Taichung 420, Taiwan.
| | - Jeng-Shyan Deng
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung 413, Taiwan.
| | - Yuan-Shiun Chang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 413, Taiwan.
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 413, Taiwan.
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61
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Xiang L, Hu YF, Wu JS, Wang L, Huang WG, Xu CS, Meng XL, Wang P. Semi-Mechanism-Based Pharmacodynamic Model for the Anti-Inflammatory Effect of Baicalein in LPS-Stimulated RAW264.7 Macrophages. Front Pharmacol 2018; 9:793. [PMID: 30072902 PMCID: PMC6058255 DOI: 10.3389/fphar.2018.00793] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 06/29/2018] [Indexed: 11/13/2022] Open
Abstract
Monitoring of the inhibition of TNF-α, IL-6, iNOS, and NO is used to effectively evaluate anti-inflammatory drugs. Baicalein was found to have good anti-inflammatory activities, but its detailed cellular pharmacodynamic events have not been expatiated by any other study. The inflammatory mediators, including TNF-α, IL-6, iNOS, and NO production in RAW264.7 macrophage induced by LPS, were measured. It was found that these data showed a sequential pattern on time and based on these points a cellular pharmacodynamic model was developed and tested. TNF-α and IL-6 were quantified by ELISA, NO was detected by Griess and iNOS expression was measured by Western blot. The pharmacodynamic model was developed using a NLME modeling program Monolix® 2016R1.1The results showed that baicalein quickly suppressed release of TNF-α in a concentration-dependent manner, and consequently causing the diminution of IL-6 and iNOS/NO. The pharmacodynamic model simulation successfully described the experimental data, supporting the hypothesis that IL-6 and iNOS /NO release after LPS stimulation is mediated by TNF-α rather than LPS directly. The pharmacodynamic model allowed a well understanding of the cellular pharmacodynamic mechanism of baicalein in the treatment of inflammatory diseases.
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Affiliation(s)
- Li Xiang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ying-Fan Hu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jia-Si Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wen-Ge Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chen-Si Xu
- Chengdu Pharmoko Tech LTD corp., Chengdu, China
| | - Xian-Li Meng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ping Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Fu T, Li H, Zhao Y, Cai E, Zhu H, Li P, Liu J. Hepatoprotective effect of α-mangostin against lipopolysaccharide/d-galactosamine-induced acute liver failure in mice. Biomed Pharmacother 2018; 106:896-901. [PMID: 30119260 DOI: 10.1016/j.biopha.2018.07.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 06/29/2018] [Accepted: 07/06/2018] [Indexed: 02/06/2023] Open
Abstract
The purpose of this study was to investigate the hepatoprotective effect of α-mangostin (α-MG) on lipopolysaccharide/d-galactosamine (LPS/D-GalN)-induced acute liver failure and discover its potential mechanisms in mice. The results showed that α-MG could attenuate LPS/D-GalN-induced liver pathological injury, and decrease the hepatic malondialdehyde (MDA) level, serum alanine aminotransferase (ALT), aspartate transaminase (AST), tumor necrosis factor (TNF-α), interleukin-1β and 6 (IL-1β, IL-6) levels and recovery hepatic glutathione (GSH), superoxide dismutase (SOD), catalase (CAT) activities. The results also indicated that α-MG inhibited LPS/D-GalN-induced toll-like receptor 4 (TLR4) expression and NF-κB activation. In addition, α-MG up-regulated the expressions of Nrf2 and heme oxygenase-1 (HO-1). In conclusion, the results indicated that α-MG could protect against LPS/D-GalN-induced liver failure by activating Nrf2 to induce antioxidant defense and inhibiting TLR4 signaling pathway to induce anti-inflammatory effect.
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Affiliation(s)
- Tianhua Fu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
| | - Haijun Li
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China
| | - Yan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China.
| | - Enbo Cai
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
| | - Hongyan Zhu
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China
| | - Pingya Li
- School of Pharmaceutical Sciences, Jilin University, Changchun, China
| | - Jinping Liu
- School of Pharmaceutical Sciences, Jilin University, Changchun, China.
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EghbaliFeriz S, Taleghani A, Tayarani-Najaran Z. Central nervous system diseases and Scutellaria : a review of current mechanism studies. Biomed Pharmacother 2018; 102:185-195. [DOI: 10.1016/j.biopha.2018.03.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/05/2018] [Accepted: 03/05/2018] [Indexed: 12/27/2022] Open
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Zhao YL, Yang ZF, Shang JH, Huang WY, Wang B, Wei X, Khan A, Yuan ZW, Liu YP, Wang YF, Wang XH, Luo XD. Effects of indole alkaloids from leaf of Alstonia scholaris on post-infectious cough in mice. JOURNAL OF ETHNOPHARMACOLOGY 2018; 218:69-75. [PMID: 29496577 PMCID: PMC7126965 DOI: 10.1016/j.jep.2018.02.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/25/2018] [Accepted: 02/25/2018] [Indexed: 05/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaf of Alstonia scholaris (L.) R. Br. (Apocynaceae), a wide used ethic-medicine in many Asia and Africa counties, has also been recorded as the common traditional Chinese medicine for treatment of illnesses in respiratory system by Dai people. AIM OF THE STUDY To provide experimental data of clinical adaption of total indole alkaloids (TA) from leaf of A. scholaris for treating post-infectious cough in phase II clinical trial. MATERIALS AND METHODS To model post-infectious cough, all animals except control group were instilled intra-tracheal with lipopolysaccharide (LPS) (80 μg/50 µL/mouse), followed by subsequent exposure to cigarette smoke (CS) for 30 min per day for a total of 30 days. Mice were orally given TA at dose of 10, 25, 50 mg/kg, and four main alkaloids (Sch: scholaricine, Epi: 19-epischolaricine, Val: vallesamine, Pic: picrinine) once daily. Cellular infiltration was assessed in the broncho-alveolar lavage fluid (BALF). Expression of interleukin-6 (IL-6) and C-reactive protein (CRP) in the serum was determined, the superoxide dismutase (SOD) activity as well as malondialdehyde (MDA) content in the serum and homogenate were examined. Finally, histopathological examination in the lungs was assessed by H. E. staining. RESULTS After administration of TA and four major alkaloids respectively, the symptoms of cough in mice were obviously attenuated. Total white blood cells (WBC) and neutrophils (NEU) amounts in BALF were reduced obviously and the pathological damage of lung was also attenuated. There was also significant reduction in IL-6, CRP, MDA and a marked improvement in SOD. CONCLUSIONS The efficacy of indole alkaloids against post-infectious cough (PIC) was shown in the down-regulation of inflammatory cells, cytokines, and the balance of antioxidants. What's more, the pharmacological effects of TA were better than single indole alkaloid, which might be related to the synergic effect of four major alkaloids.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Zi-Feng Yang
- Guangzhou Medical University, Guangzhou 511436, China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Wan-Yi Huang
- Guangzhou Medical University, Guangzhou 511436, China
| | - Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Afsar Khan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Zhi-Wei Yuan
- Second Hospital Affiliated to Kunming Medical University, Kunming 650101, Yunnan Province, China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yi-Fen Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xin-Hua Wang
- Guangzhou Medical University, Guangzhou 511436, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Guangzhou Medical University, Guangzhou 511436, China.
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Alternative and Natural Therapies for Acute Lung Injury and Acute Respiratory Distress Syndrome. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2476824. [PMID: 29862257 PMCID: PMC5976962 DOI: 10.1155/2018/2476824] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 04/08/2018] [Indexed: 01/17/2023]
Abstract
Introduction Acute respiratory distress syndrome (ARDS) is a complex clinical syndrome characterized by acute inflammation, microvascular damage, and increased pulmonary vascular and epithelial permeability, frequently resulting in acute respiratory failure and death. Current best practice for ARDS involves “lung-protective ventilation,” which entails low tidal volumes and limiting the plateau pressures in mechanically ventilated patients. Although considerable progress has been made in understanding the pathogenesis of ARDS, little progress has been made in the development of specific therapies to combat injury and inflammation. Areas Covered In recent years, several natural products have been studied in experimental models and have been shown to inhibit multiple inflammatory pathways associated with acute lung injury and ARDS at a molecular level. Because of the pleiotropic effects of these agents, many of them also activate antioxidant pathways through nuclear factor erythroid-related factor 2, thereby targeting multiple pathways. Several of these agents are prescribed for treatment of inflammatory conditions in the Asian subcontinent and have shown to be relatively safe. Expert Commentary Here we review natural remedies shown to attenuate lung injury and inflammation in experimental models. Translational human studies in patients with ARDS may facilitate treatment of this devastating disease.
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Chang HY, Chen YC, Lin JG, Lin IH, Huang HF, Yeh CC, Chen JJ, Huang GJ. Asatone Prevents Acute Lung Injury by Reducing Expressions of NF-κB, MAPK and Inflammatory Cytokines. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:651-671. [DOI: 10.1142/s0192415x18500349] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Asatone is an active component extracted from the Chinese herb Radix et Rhizoma Asari. Our preliminary studies have indicated that asatone has an anti-inflammatory effect on RAW 264.7 culture cells challenged with lipopolysaccharide (LPS). Acute lung injury (ALI) has high morbidity and mortality rates due to the onset of serious lung inflammation and edema. Whether asatone prevents ALI LPS-induced requires further investigation. In vitro studies revealed that asatone at concentrations of 2.5–20[Formula: see text][Formula: see text]g/mL drastically prevented cytotoxicity and concentration-dependently reduced NO production in the LPS-challenged macrophages. In an in vivo study, the intratracheal administration of LPS increased the lung wet/dry ratio, myeloperoxidase activity, total cell counts, white blood cell counts, NO, iNOS, COX, TNF-[Formula: see text], IL-1[Formula: see text], and IL-6 in the bronchoalveolar lavage fluid as well as mitogen-activated protein kinases in the lung tissues. Pretreatment with asatone could reverse all of these effects. Asatone markedly reduced the levels of TNF-[Formula: see text] and IL-6 in the lung and liver, but not in the kidney of mice. By contrast, LPS reduced anti-oxidative enzymes and inhibited NF-[Formula: see text]B activations, whereas asatone increased anti-oxidative enzymes in the bronchoalveolar lavage fluid and NF-[Formula: see text]B activations in the lung tissues. Conclusively, asatone can prevent ALI through various anti-inflammatory modalities, including the major anti-inflammatory pathways of NF-[Formula: see text]B and mitogen-activated protein kinases. These findings suggest that asatone can be applied in the treatment of ALI.
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Affiliation(s)
- Heng-Yuan Chang
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 970, Taiwan
| | - Yi-Chuan Chen
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 970, Taiwan
| | - Jaung-Geng Lin
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
| | - I-Hsin Lin
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 970, Taiwan
| | - Hui-Fen Huang
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 970, Taiwan
- Department of Chinese Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei 231, Taiwan
| | - Chia-Chou Yeh
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 970, Taiwan
- Department of Chinese Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chia-Yi 622, Taiwan
| | - Jian-Jung Chen
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 970, Taiwan
- Department of Chinese Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung 427, Taiwan
| | - Guan-Jhong Huang
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Chinese Medicine, China Medical University, Taichung 404, Taiwan
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Tang F, Fan K, Wang K, Bian C. Atractylodin attenuates lipopolysaccharide-induced acute lung injury by inhibiting NLRP3 inflammasome and TLR4 pathways. J Pharmacol Sci 2018; 136:203-211. [DOI: 10.1016/j.jphs.2017.11.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/16/2017] [Accepted: 11/27/2017] [Indexed: 12/19/2022] Open
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Accelerated inflammation and oxidative stress induced by LPS in acute lung injury: Ιnhibition by ST1926. Int J Mol Med 2018; 41:3405-3421. [PMID: 29568857 PMCID: PMC5881729 DOI: 10.3892/ijmm.2018.3574] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 02/20/2018] [Indexed: 01/01/2023] Open
Abstract
Bioavailable and less toxic synthetic retinoids, such as the atypical adamantyl retinoid ST1926, have been well developed and investigated in clinical trials for many diseases. The aim of our study was to explore the role of ST1926 in lipopolysaccharide (LPS)-induced acute lung injury (ALI) and to reveal the possible molecular mechanism. Mice were treated with LPS to induce acute lung injury followed by ST1926 administration. After LPS induction, mice administered with ST1926 showed lower inflammation infiltration in bronchoalveolar lavage (BAL) fluid, and pro-inflammatory cytokines, including interleukin-1β (IL-1β), IL-18, IL-6 and tumor necrosis factor-α (TNF-α) in serum and lung tissue samples obtained from mice. In addition, western blot assays suggested that ST1926 suppressed nuclear factor-κB (NF-κB), inhibitor-κB kinase-α (IκBα) and IκB kinase (IKKα), as well as Toll-like receptor 4 (TLR4) induced by LPS. In addition, reactive oxygen species (ROS) stimulated by LPS was also suppressed for ST1926 through inhibiting p38 and extracellular receptor kinase (ERK) signaling pathway. Taken together, the data here indicated that ST1926 may be of potential value in treating acute lung injury through inflammation and ROS suppression via inactivating TLR4/NF-κB and p38/ERK1/2 signaling pathways.
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69
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Nrf2 as regulator of innate immunity: A molecular Swiss army knife! Biotechnol Adv 2018; 36:358-370. [DOI: 10.1016/j.biotechadv.2017.12.012] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/16/2017] [Accepted: 12/19/2017] [Indexed: 12/12/2022]
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Preventive Effects of Velvet Antler (Cervus elaphus) against Lipopolysaccharide-Induced Acute Lung Injury in Mice by Inhibiting MAPK/NF- κB Activation and Inducing AMPK/Nrf2 Pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:2870503. [PMID: 29483931 PMCID: PMC5816838 DOI: 10.1155/2018/2870503] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 10/19/2017] [Accepted: 11/05/2017] [Indexed: 12/14/2022]
Abstract
Velvet antler (Cervus elaphus) is a typical traditional animal medicine. It is considered to have various pharmacological effects including stimulation of the immune system, increase in the physical strength, and enhancement of sexual function. This paper aims to investigate the aqueous extract of velvet antler (AVA) in the mouse models of LPS-induced ALI. Inhibition of NO, TNF-α, IL-1β, IL-6, and IL-10 productions contributes to the attenuation of LPS-induced lung inflammation by AVA. A 5-day pretreatment of AVA prevented histological alterations and enhanced antioxidant enzyme activity in lung tissues. AVA significantly reduced the material (total number of cells and proteins) in the BALF. Western blot analysis revealed that the expression of iNOS and COX-2 and phosphorylation of IκB-α and MAPKs proteins are blocked in LPS-stimulated macrophages as well as LPS-induced lung injury in mice. Consistent with this concept, the phosphorylation of CaMKKβ, LKB1, AMPK, Nrf2, and HO-1 was activated after AVA treatment. The results from this study indicate AVA has anti-inflammatory effects in vivo and AVA is a potential model for the development of health food. In addition, its pathways may be at least partially associated with inhibiting MAPK/NF-κB activation and upregulating AMPK/Nrf2 pathways and the regulation of antioxidant enzyme activity.
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Baicalein ameliorates TNBS-induced colitis by suppressing TLR4/MyD88 signaling cascade and NLRP3 inflammasome activation in mice. Sci Rep 2017; 7:16374. [PMID: 29180692 PMCID: PMC5703971 DOI: 10.1038/s41598-017-12562-6] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 09/12/2017] [Indexed: 12/27/2022] Open
Abstract
Baicalein (5,6,7-trihydroxyflavone), a predominant bioactive component isolated from the root of Scutellaria baicalensis Georgi, has established potent anti-inflammatory activity via multi-targeted mechanisms. However, little is known about the effect of baicalein on 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis, which shares pathology related to human Crohn’s disease (CD). The present study demonstrated that baicalein alleviated the severity of TNBS-induced colitis in mice by decreasing the activity of myeloperoxidase (MPO) and the expression of pro-inflammatory mediators. The decline in the activation of nuclear factor-kappa B (NF-κB) and p38 mitogen-activated protein kinase (MAPK) correlated with a decrease in the expression of mucosal toll-like receptor 4 (TLR4) and its adaptor myeloid differentiation factor 88 (MyD88). In vitro, baicalein down-regulated the TLR4/MyD88 signaling cascades (NF-κB and MAPKs) in lipopolysaccharide (LPS)-stimulated macrophages. At the upstream level, baicalein bound to the hydrophobic region of the myeloid differentiation protein-2 (MD-2) pocket and inhibited the formation of the LPS-induced MD-2/TLR4 complex. Furthermore, baicalein reduced NOD-like receptor 3 (NLRP3) inflammasome activation and downstream interleukin-1β expression in a dose-dependent manner. Our study provided evidence for the first time that baicalein attenuated TNBS-induced colitis, at least in part, via inhibition of TLR4/MyD88 signaling cascade as well as inactivation of NLRP3 inflammasome.
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Park CH, Shin MR, An BK, Joh HW, Lee JC, Roh SS, Yokozawa T. Heat-Processed Scutellariae Radix Protects Hepatic Inflammation through the Amelioration of Oxidative Stress in Lipopolysaccharide-Induced Mice. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:1233-1252. [DOI: 10.1142/s0192415x17500689] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The present study evaluated the effects of heat-processed Scutellariae Radix (Scutellaria baicalensis) on lipopolysaccharide (LPS)-induced liver injury in mice. Scutellariae Radix heat-processed at 160[Formula: see text]C or 180[Formula: see text]C was orally administered at a dose of 100 mg/kg body weight for three days before the intraperitoneal injection of LPS, and the effects were compared with those of vehicle-treated LPS administered to control mice. The administration of Scutellariae Radix decreased the elevated serum monocyte chemotactic protein-1 (MCP-1), interleukin-6 (IL-6), reactive oxygen species (ROS), nitrite/nitrate, peroxynitrite, and hepatic functional parameters, and reduced the increased ROS in the liver. The augmented expressions of hepatic oxidative stress and inflammation-related proteins, phospho-p38, phosphorylated extracellular signal-regulated kinase, phosphorylated c-Jun N-terminal kinase, nuclear factor-[Formula: see text] B p65, activator protein-1, cyclooxygenase-2, inducible nitric oxide synthase, MCP-1, intercellular adhesion molecule-1, tumor necrosis factor-[Formula: see text], and IL-6, were downregulated by the heat-processed Scutellariae Radix. Hematoxylin-eosin staining showed that the increased hepatocellular damage in the liver of LPS-treated mice improved with the administration of heat-processed Scutellariae Radix. Overall, the ameliorative effects of Scutellariae Radix were superior to those when heat-processed at 180[Formula: see text]C. Our results indicate that heat-processed Scutellariae Radix acts as an anti-inflammatory agent by ameliorating oxidative stress in the liver of mice with LPS-induced liver injury.
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Affiliation(s)
- Chan Hum Park
- Department of Medicinal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong 369-873, Republic of Korea
- College of Korean Medicine, Daegu Haany University, Daegu 706-060, Republic of Korea
| | - Mi-Rae Shin
- College of Korean Medicine, Daegu Haany University, Daegu 706-060, Republic of Korea
| | - Byung Kwan An
- School of Korean Medicine, Pusan National University, Gyeongnam 626-870, Republic of Korea
| | - Hyun Woo Joh
- School of Korean Medicine, Pusan National University, Gyeongnam 626-870, Republic of Korea
| | - Jang Cheon Lee
- Jeollanamdo Development Institute for Korean Traditional Medicine, Jeollanamdo 529-851, Republic of Korea
| | - Seong-Soo Roh
- College of Korean Medicine, Daegu Haany University, Daegu 706-060, Republic of Korea
| | - Takako Yokozawa
- Graduate School of Science and Engineering for Research, University of Toyama, Toyama 930-8555, Japan
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Zhang X, Yang Y, Du L, Zhang W, Du G. Baicalein exerts anti-neuroinflammatory effects to protect against rotenone-induced brain injury in rats. Int Immunopharmacol 2017. [PMID: 28623717 DOI: 10.1016/j.intimp.2017.06.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Baicalein, a major bioactive flavone constituent isolated from Scutellaria baicalensis Georgi, has been shown to be neuroprotective in several Parkinson's disease (PD) animal models. Since neuroinflammation has been known to play a critical role in the pathogenesis of PD, potential explanation for the neuroprotective action of anti-PD compounds involves among others reduced inflammation. Our study investigated that one of the mechanisms of protection afforded by baicalein in rotenone-induced parkinsonian rats was associated with anti-inflammatory action and explored its underlying mechanism in vivo and in vitro. The results showed that baicalein treatment improved motor impairments, attenuated brain damage, suppressed the production of proinflammatory cytokines (tumor necrosis factor α (TNF-α), and interleukin 6 (IL-6)), modulated the astrocytes and microglia activation, and blocked the activation of nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) signals in rotenone-induced rats of PD. Furthermore, treatment of baicalein prominently suppressed the generation of nitric oxide (NO) and the expression of inducible NO synthase (iNOS) protein by blocking LPS-induced IκBα phosphorylation and NF-κB translocation, and downregulated the Toll-like receptor 4 (TLR4) which functions in the upstream of NF-κB signal in the activated BV2 microglia. In conclusion, our studies suggest that baicalein may be effective in the treatment of PD through anti-neuroinflammation.
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Affiliation(s)
- Xue Zhang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China.
| | - Yulin Yang
- Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lida Du
- School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Wen Zhang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China.
| | - Guanhua Du
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, 1 Xian Nong Tan Street, Beijing 100050, China.
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Wu G, Dai X, Li X, Jiang H. ANTIOXIDANT AND ANTI-INFLAMMATORY EFFECTS OF RHAMNAZIN ON LIPOPOLYSACCHARIDE-INDUCED ACUTE LUNG INJURY AND INFLAMMATION IN RATS. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2017. [PMID: 28638883 PMCID: PMC5471467 DOI: 10.21010/ajtcam.v14i4.23] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background: Acute Lung Injury (ALI) results into severe inflammation and oxidative stress to the pulmonary tissue. Rhamnazin is a natural flavonoid and known for its antioxidant and anti-inflammatory properties. Materials and methods: The antioxidative and anti-inflammatory properties rhamnazin were tested for protection against the acute lung injury. We investigated whether rhamnazin improves the lipopolysaccharide (LPS)-induced ALI in an animal model (rat). We also studied the probable molecular mechanism of action of rhamnazin. Rhamnazin was injected intraperitoneally (i.p.) (5, 10 and 20 mg/kg) two days before intratracheal LPS challenge (5mg/kg). The changes in lung wet-to-dry weight ratio, LDH activity, pulmonary histopathology, BALF protein concentration, MPO activity, oxidative stress, cytokine production were estimated. Results: The results showed a significant attenuation of all the inflammatory parameters and a marked improvement in the pulmonary histopathology in the animal groups pretreated with rhamnazin. The rhamnazin pretreated group also showed activation of Nrf2 pathway and attenuation of ROS such as H2O2, MDA and hydroxyl ion. These results indicated that rhamnazin could attenuate the symptoms of ALI in rats due to its strong antioxidant and anti-inflammatory properties. Conclusion: The results strongly demonstrated that rhamnazin provides protection against LPS-induced ALI. The underlying mechanisms of its anti-inflammatory action may include inhibition of Nrf2 mediated antioxidative pathway.
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Affiliation(s)
- GuoRong Wu
- Department of respiratory medicine, Changzhou Jintan District People's Hospital, Changzhou, Jiangsu 213200, China
| | - XiaoPing Dai
- Department of respiratory medicine, Changzhou Jintan District People's Hospital, Changzhou, Jiangsu 213200, China
| | - XiangRong Li
- Department of respiratory medicine, Changzhou Jintan District People's Hospital, Changzhou, Jiangsu 213200, China
| | - HePing Jiang
- Department of respiratory medicine, Changzhou Jintan District People's Hospital, Changzhou, Jiangsu 213200, China
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Xie YL, Chu JG, Jian XM, Dong JZ, Wang LP, Li GX, Yang NB. Curcumin attenuates lipopolysaccharide/d-galactosamine-induced acute liver injury by activating Nrf2 nuclear translocation and inhibiting NF-kB activation. Biomed Pharmacother 2017; 91:70-77. [PMID: 28448872 DOI: 10.1016/j.biopha.2017.04.070] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 04/13/2017] [Accepted: 04/17/2017] [Indexed: 12/12/2022] Open
Abstract
Curcumin, a polyphenol in curry spice isolated from the rhizome of turmeric, has been reported to possess versatile biological properties including anti-inflammatory, anti-oxidant, antifibrotic, and anticancer activities. In this study, the hepatoprotective effect of curcumin was investigated in lipopolysaccharide (LPS)/d-galactosamine (d-GalN)-induced acute liver injury (ALI) in rats. Experimental ALI was induced with an intraperitoneal (ip) injection of sterile 0.9% sodium chloride (NaCl) solution containing 8μg LPS and 800mg/kg d-GalN. Curcumin was administered once daily starting three days prior to LPS/d-GalN treatment. Results indicated that curcumin could attenuate hepatic pathological damage, decrease serum ALT and AST levels, and reduce malondialdehyde (MDA) content in experimental ALI rats. Moreover, higher dosages of curcumin pretreatment inhibited NF-κB activation and reduced serum TNF-α and liver TNF-α levels induced by LPS/d-GalN ip injection. Furthermore, we found that curcumin up-regulated the expression of nuclear Nrf2 and Nrf2-dependent antioxidant defense genes including heme oxygenase-1 (HO-1), glutamate-cysteine ligase (GCLC), NAD(P)H dehydrogenase, and quinone (NQO-1) in a dose-dependent manner. Our results showed that curcumin protected experimental animals against LPS/d-GalN-induced ALI through activation of Nrf2 nuclear translocation and inhibition of NF-κB activation.
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Affiliation(s)
- Yi-Lian Xie
- Department of Infection and Liver Diseases, Ningbo First Hospital, Ningbo, China; Department of General Internal Medicine, Ningbo First Hospital, Ningbo, China
| | - Jin-Guo Chu
- Department of Infection and Liver Diseases, Ningbo First Hospital, Ningbo, China; Department of General Internal Medicine, Ningbo First Hospital, Ningbo, China
| | - Xiao-Min Jian
- Department of the First Clinical Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jin-Zhong Dong
- Department of Intensive Care Unit, Ningbo First Hospital, Ningbo, China
| | - Li-Ping Wang
- Department of Infection and Liver Diseases, Ningbo First Hospital, Ningbo, China; Department of General Internal Medicine, Ningbo First Hospital, Ningbo, China
| | - Guo-Xiang Li
- Department of Infection and Liver Diseases, Ningbo First Hospital, Ningbo, China; Department of General Internal Medicine, Ningbo First Hospital, Ningbo, China.
| | - Nai-Bin Yang
- Department of Infection and Liver Diseases, Ningbo First Hospital, Ningbo, China; Department of General Internal Medicine, Ningbo First Hospital, Ningbo, China.
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Lai CC, Huang PH, Yang AH, Chiang SC, Tang CY, Tseng KW, Huang CH. Baicalein Attenuates Lung Injury Induced by Myocardial Ischemia and Reperfusion. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:791-811. [PMID: 28521514 DOI: 10.1142/s0192415x17500422] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Baicalein is an active component of Scutellaria baicalensis Georgi, which has traditionally been used to treat cardiovascular diseases in China. In this study, we investigated if treatment with baicalein can attenuate the lung injury induced by myocardial ischemia and reperfusion (I/R). Myocardial I/R, induced by a 40-min occlusion of the left anterior descending coronary artery and a 3-h reperfusion, significantly increased histological damage and the wet-to-dry weight ratio of lungs in rats. The terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL)-positive nuclei and caspase-3 activation was significantly increased in the lungs. Serum and bronchoalveolar lavage fluid levels of tumor necrosis factor-[Formula: see text] (TNF-[Formula: see text]), interleukin-1[Formula: see text] (IL-1[Formula: see text]), and interleukin-6 (IL-6) were significantly elevated, as were TNF-[Formula: see text] levels in the lung. Intravenous administration with baicalein at doses of 3, 10, and 30[Formula: see text]mg/kg for ten minutes before myocardial I/R significantly reduced histological damage, the wet-to-dry weight ratio, and apoptosis in the lung. Baicalein also significantly inhibited the increase in levels of TNF-[Formula: see text], IL-1[Formula: see text], and IL-6. Moreover, baicalein increased Bcl-2 and decreased p53, Bax, and cytochrome [Formula: see text] in lungs. Phosphorylation of the prosurvival kinases, including Akt and extracellular signal-regulated kinases 1 and 2 (ERK1/2), was increased, while the phosphorylation of the pro-apoptotic mitogen-activated protein kinases, including p38 and c-Jun N-terminal kinase (JNK), was decreased. In conclusion, treatment with baicalein attenuates the lung injury induced by myocardial I/R. The mechanisms might be related to the limiting of apoptosis, possibly via the inhibition of both the extrinsic and intrinsic pathways of apoptosis, including the inhibition of TNF-[Formula: see text] production and modulation of pro- and anti-apoptotic signaling elements.
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Affiliation(s)
- Chang-Chi Lai
- * Division of Cardiovascular Surgery, Department of Surgery, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taipei, Taiwan.,† Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,∥ Department of Physical Education and Health, University of Taipei, Taipei, Taiwan
| | - Po-Hsun Huang
- † Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,‡ Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taipei, Taiwan.,** Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - An-Han Yang
- § Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Shu-Chiung Chiang
- ¶ Institute of Hospital and Health Care Administration, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chia-Yu Tang
- * Division of Cardiovascular Surgery, Department of Surgery, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taipei, Taiwan.,† Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Kuo-Wei Tseng
- ∥ Department of Physical Education and Health, University of Taipei, Taipei, Taiwan
| | - Cheng-Hsiung Huang
- * Division of Cardiovascular Surgery, Department of Surgery, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taipei, Taiwan
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77
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Protective Effects of Li-Fei-Xiao-Yan Prescription on Lipopolysaccharide-Induced Acute Lung Injury via Inhibition of Oxidative Stress and the TLR4/NF- κB Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:1791789. [PMID: 28424738 PMCID: PMC5382312 DOI: 10.1155/2017/1791789] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 12/10/2016] [Accepted: 01/26/2017] [Indexed: 12/31/2022]
Abstract
Li-Fei-Xiao-Yan prescription (LFXY) has been clinically used in China to treat inflammatory and infectious diseases including inflammatory lung diseases. The present study was aimed at evaluating the potential therapeutic effects and potential mechanisms of LFXY in a murine model of lipopolysaccharide- (LPS-) induced acute lung injury (ALI). In this study, the mice were orally pretreated with LFXY or dexamethasone (positive drug) before the intratracheal instillation of LPS. Our data indicated that pretreatment with LFXY enhanced the survival rate of ALI mice, reversed pulmonary edema and permeability, improved LPS-induced lung histopathology impairment, suppressed the excessive inflammatory responses via decreasing the expression of proinflammatory cytokines (TNF-α, IL-1β, and IL-6) and chemokine (MIP-2) and inhibiting inflammatory cells migration, and repressed oxidative stress through the inhibition of MPO and MDA contents and the upregulation of antioxidants (SOD and GSH) activities. Mechanistically, treatment with LFXY significantly prevented LPS-induced TLR4 expression and NF-κB (p65) phosphorylation. Overall, the present study suggests that LFXY protected mice from acute lung injury induced by LPS via inhibition of TLR4/NF-κB p65 activation and upregulation of antioxidative enzymes and it may be a potential preventive and therapeutic agent for ALI in the clinical setting.
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78
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Lv H, Liu Q, Wen Z, Feng H, Deng X, Ci X. Xanthohumol ameliorates lipopolysaccharide (LPS)-induced acute lung injury via induction of AMPK/GSK3β-Nrf2 signal axis. Redox Biol 2017; 12:311-324. [PMID: 28285192 PMCID: PMC5345976 DOI: 10.1016/j.redox.2017.03.001] [Citation(s) in RCA: 300] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 02/10/2017] [Accepted: 03/01/2017] [Indexed: 01/11/2023] Open
Abstract
Abundant natural flavonoids can induce nuclear factor-erythroid 2 related factor 2 (Nrf2) and/or AMP-activated protein kinase (AMPK) activation, which play crucial roles in the amelioration of various inflammation- and oxidative stress-induced diseases, including acute lung injury (ALI). Xanthohumol (Xn), a principal prenylflavonoid, possesses anti-inflammation and anti-oxidant activities. However, whether Xn could protect from LPS-induced ALI through inducing AMPK/Nrf2 activation and its downstream signals, are still poorly elucidated. Accordingly, we focused on exploring the protective effect of Xn in the context of ALI and the involvement of underlying molecular mechanisms. Our findings indicated that Xn effectively alleviated lung injury by reduction of lung W/D ratio and protein levels, neutrophil infiltration, MDA and MPO formation, and SOD and GSH depletion. Meanwhile, Xn significantly lessened histopathological changes, reactive oxygen species (ROS) generation, several cytokines secretion, and iNOS and HMGB1 expression, and inhibited Txnip/NLRP3 inflammasome and NF-κB signaling pathway activation. Additionally, Xn evidently decreased t-BHP-stimulated cell apoptosis, ROS generation and GSH depletion but increased various anti-oxidative enzymes expression regulated by Keap1-Nrf2/ARE activation, which may be associated with AMPK and GSK3β phosphorylation. However, Xn-mediated inflammatory cytokines and ROS production, histopathological changes, Txnip/NLRP3 inflammasome and NF-κB signaling pathway in WT mice were remarkably abrogated in Nrf2-/- mice. Our experimental results firstly provided a support that Xn effectively protected LPS-induced ALI against oxidative stress and inflammation damage which are largely dependent upon upregulation of the Nrf2 pathway via activation of AMPK/GSK3β, thereby suppressing LPS-activated Txnip/NLRP3 inflammasome and NF-κB signaling pathway. Xn protects LPS-induced acute lung injury via anti-inflammation and anti-oxidant. Xn induces expressions of GCLC, GCLM, HO-1, NQO-1 and Trx-1. Xn blocks NF-κB and Txnip/NLRP3 inflammasome activation. Xn upregulates AMPK/GSK3β-Nrf2 signal axis. Xn-attenuated acute lung injury is effectively abrogated in Nrf2-/- mice.
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Affiliation(s)
- Hongming Lv
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China; Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130061, China
| | - Qinmei Liu
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China
| | - Zhongmei Wen
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China
| | - Haihua Feng
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130061, China
| | - Xuming Deng
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China; Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130061, China
| | - Xinxin Ci
- Institute of Translational Medicine, The First Hospital, Jilin University, Changchun 130001, China.
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79
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Kim HP, Lim H, Kwon YS. Therapeutic Potential of Medicinal Plants and Their Constituents on Lung Inflammatory Disorders. Biomol Ther (Seoul) 2017; 25:91-104. [PMID: 27956716 PMCID: PMC5340533 DOI: 10.4062/biomolther.2016.187] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/21/2016] [Accepted: 10/04/2016] [Indexed: 12/16/2022] Open
Abstract
Acute bronchitis and chronic obstructive pulmonary diseases (COPD) are essentially lung inflammatory disorders. Various plant extracts and their constituents showed therapeutic effects on several animal models of lung inflammation. These include coumarins, flavonoids, phenolics, iridoids, monoterpenes, diterpenes and triterpenoids. Some of them exerted inhibitory action mainly by inhibiting the mitogen-activated protein kinase pathway and nuclear transcription factor-κB activation. Especially, many flavonoid derivatives distinctly showed effectiveness on lung inflammation. In this review, the experimental data for plant extracts and their constituents showing therapeutic effectiveness on animal models of lung inflammation are summarized.
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Affiliation(s)
- Hyun Pyo Kim
- College of Pharmacy, Kangwon National University, Chuncheon 24341,
Republic of Korea
| | - Hyun Lim
- College of Pharmacy, Kangwon National University, Chuncheon 24341,
Republic of Korea
| | - Yong Soo Kwon
- College of Pharmacy, Kangwon National University, Chuncheon 24341,
Republic of Korea
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80
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Lin WC, Deng JS, Huang SS, Wu SH, Chen CC, Lin WR, Lin HY, Huang GJ. Anti-Inflammatory Activity of Sanghuangporus sanghuang Mycelium. Int J Mol Sci 2017; 18:ijms18020347. [PMID: 28178212 PMCID: PMC5343882 DOI: 10.3390/ijms18020347] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/18/2017] [Accepted: 01/20/2017] [Indexed: 12/18/2022] Open
Abstract
Acute lung injury (ALI) is characterized by inflammation of the lung tissue and oxidative injury caused by excessive accumulation of reactive oxygen species. Studies have suggested that anti-inflammatory or antioxidant agents could be used for the treatment of ALI with a good outcome. Therefore, our study aimed to test whether the mycelium extract of Sanghuangporus sanghuang (SS-1), believed to exhibit antioxidant and anti-inflammatory properties, could be used against the excessive inflammatory response associated with lipopolysaccharides (LPS)-induced ALI in mice and to investigate its possible mechanism of action. The experimental results showed that the administration of SS-1 could inhibit LPS-induced inflammation. SS-1 could reduce the number of inflammatory cells, inhibit myeloperoxidase (MPO) activity, regulate the TLR4/PI3K/Akt/mTOR pathway and the signal transduction of NF-κB and MAPK pathways in the lung tissue, and inhibit high mobility group box-1 protein 1 (HNGB1) activity in BALF. In addition, SS-1 could affect the synthesis of antioxidant enzymes Heme oxygenase 1 (HO-1) and Thioredoxin-1 (Trx-1) in the lung tissue and regulate signal transduction in the KRAB-associated protein-1 (KAP1)/nuclear factor erythroid-2-related factor Nrf2/Kelch Like ECH associated Protein 1 (Keap1) pathway. Histological results showed that administration of SS-1 prior to induction could inhibit the large-scale LPS-induced neutrophil infiltration of the lung tissue. Therefore, based on all experimental results, we propose that SS-1 exhibits a protective effect against LPS-induced ALI in mice. The mycelium of S. sanghuang can potentially be used for the treatment or prevention of inflammation-related diseases.
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Affiliation(s)
- Wang-Ching Lin
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Jeng-Shyan Deng
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 413, Taiwan.
| | - Shyh-Shyun Huang
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Sheng-Hua Wu
- Department of Biology, National Museum of Natural Science, Taichung 404, Taiwan.
| | - Chin-Chu Chen
- Grape King Biotechnology Center, Chung-Li City 320, Taiwan.
| | - Wan-Rong Lin
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Hui-Yi Lin
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
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81
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Chen JJ, Huang CC, Chang HY, Li PY, Liang YC, Deng JS, Huang SS, Huang GJ. Scutellaria baicalensis Ameliorates Acute Lung Injury by Suppressing Inflammation In Vitro and In Vivo. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:137-157. [PMID: 28081626 DOI: 10.1142/s0192415x17500100] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Scutellaria baicalensis has been widely used as both a dietary ingredient and traditional herbal medicine in Taiwan to treat inflammation, cancer, and bacterial and viral infections of the respiratory tract and gastrointestinal tract. This paper aims to investigate the in vitro and in vivo anti-inflammatory effects of S. baicalensis. In HPLC analysis, the fingerprint chromatogram of the water extract of S. baicalensis (WSB) was established. The anti-inflammatory effects of WSB were inverstigated using lipopolysaccharide (LPS)-stimulated mouse macrophage (RAW264.7) in vitro and LPS-induced lung injury in vivo. WSB attenuated the production of LPS-induced nitric oxide (NO), tumor necrosis factor-alpha (TNF-[Formula: see text], interleukin-[Formula: see text] (IL-1[Formula: see text], and IL-6 in vitro and in vivo. Pretreatment with WSB markedly reduced the LPS-induced histological alterations in lung tissues. Furthermore, WSB significantly reduced the number of total cells and the protein concentration levels in the BALF. WSB blocked protein expression of inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2), phosphorylation of I[Formula: see text]B-[Formula: see text] protein and MAPKs in LPS-stimulated RAW 264.7 cells and LPS-induce lung injury was also blocked. This study suggests that WSB possesses anti-inflammatory effects in vitro and in vivo, and the results suggested that WSB may be a potential therapeutic candidate for the treatment of inflammatory diseases.
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Affiliation(s)
- Jian-Jung Chen
- * Department of Chinese Medicine, Buddhist Tzu Chi General Hospital, Taichung Branch, Taichung, Taiwan.,† School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chung-Chun Huang
- * Department of Chinese Medicine, Buddhist Tzu Chi General Hospital, Taichung Branch, Taichung, Taiwan
| | - Heng-Yuan Chang
- † School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien, Taiwan
| | - Pei-Ying Li
- ‡ School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Yu-Chia Liang
- § School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Jeng-Shyan Deng
- ¶ Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Shyh-Shyun Huang
- ‡ School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Guan-Jhong Huang
- § School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung, Taiwan
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82
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Yang ZW, Xu F, Liu X, Cao Y, Tang Q, Chen QY, Shang MY, Liu GX, Wang X, Cai SQ. An untargeted metabolomics approach to determine component differences and variation in their in vivo distribution between Kuqin and Ziqin, two commercial specifications of Scutellaria Radix. RSC Adv 2017. [DOI: 10.1039/c7ra10705f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Kuqin (KQ) and Ziqin (ZQ), derived from the roots of Scutellaria baicalensis Georgi, are two important commercial specifications of Scutellariae Radix (SR, termed Huang qin in Chinese).
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Affiliation(s)
- Zhi-Wei Yang
- Department of Chemical Biology
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- PR China
| | - Feng Xu
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- Beijing 100191
- PR China
| | - Xin Liu
- Technical Center, Beijing Entry-Exit Inspection and Quarantine Bureau
- Beijing
- PR China
| | - Yi Cao
- Department of Chemical Biology
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- PR China
| | - Qi Tang
- Department of Chemical Biology
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- PR China
| | - Qian-Yu Chen
- Department of Chemical Biology
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- PR China
| | - Ming-Ying Shang
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- Beijing 100191
- PR China
| | - Guang-Xue Liu
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- Beijing 100191
- PR China
| | - Xuan Wang
- Department of Chemical Biology
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
- PR China
| | - Shao-Qing Cai
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- Beijing 100191
- PR China
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83
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Lin WC, Deng JS, Huang SS, Lin WR, Wu SH, Lin HY, Huang GJ. Anti-inflammatory activity of Sanghuangporus sanghuang by suppressing the TLR4-mediated PI3K/AKT/mTOR/IKKβ signaling pathway. RSC Adv 2017. [DOI: 10.1039/c7ra01000a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sanghuangporus sanghuang (SS) is a mushroom that belongs to the genus Sanghuangporus and it is commonly called “Sangwhang” in Taiwan.
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Affiliation(s)
- Wang-Ching Lin
- School of Pharmacy
- China Medical University
- Taichung 404
- Taiwan
| | - Jeng-Shyan Deng
- Department of Health and Nutrition Biotechnology
- Asia University
- Taichung 413
- Taiwan
| | | | - Wan-Rong Lin
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources
- College of Chinese Medicine
- China Medical University
- Taichung 404
- Taiwan
| | - Sheng-Hua Wu
- Department of Biology
- National Museum of Natural Science
- Taichung 404
- Taiwan
| | - Hui-Yi Lin
- School of Pharmacy
- China Medical University
- Taichung 404
- Taiwan
| | - Guan-Jhong Huang
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources
- College of Chinese Medicine
- China Medical University
- Taichung 404
- Taiwan
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84
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Wu J, Hu Y, Xiang L, Li S, Yuan Y, Chen X, Zhang Y, Huang W, Meng X, Wang P. San-Huang-Xie-Xin-Tang Constituents Exert Drug-Drug Interaction of Mutual Reinforcement at Both Pharmacodynamics and Pharmacokinetic Level: A Review. Front Pharmacol 2016; 7:448. [PMID: 27965575 PMCID: PMC5124576 DOI: 10.3389/fphar.2016.00448] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/09/2016] [Indexed: 12/29/2022] Open
Abstract
Inflammatory disorders underlie varieties of human diseases. San-Huang-Xie-xin-Tang (SHXXT), composed with Rhizoma Rhei (Rheum palmatum L.), Rhizoma Coptidis (Coptis chinensis Franch), and Radix Scutellaria (Scutellaria baicalensis Georgi), is a famous formula which has been widely used in the fight against inflammatory abnormalities. Mutual reinforcement is one of the basic theories of traditional Chinese medicine. Here this article reviewed and analyzed the recent research on (1) How the main constituents of SHXXT impact on inflammation-associated signaling pathway molecules. (2) The interaction between the main constituents and efflux pumps or intestinal transporters. The goal of this work was to, (1) Provide evidence to support the theory of mutual reinforcement. (2) Clarify the key targets of SHXXT and suggest which targets need further investigation. (3) Give advice for the clinical use of SHXXT to elevated the absorption of main constituents and eventually promote oral bioavailability. We search literatures in scientific databases with key words of “each main SHXXT constituent,” in combination with “each main inflammatory pathway target molecule” or each main intestinal transporter, respectively. We report the effect of five main constituents on target molecules which lies in three main inflammatory signaling pathways, we as well investigate the interaction between constituents and intestinal transporter. We conclude, (1) The synergistic effect of constituents at both levels confirm the mutual reinforcement theory of TCM as it is proven in this work. (2) The effect of main constituents on downstream targets in nuclear need more further investigation. (3) Drug elevating the absorption of rhein, berberine and baicalein can be employed to promote oral bioavailability of SHXXT.
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Affiliation(s)
- Jiasi Wu
- Chengdu University of Traditional Chinese Medicine Chengdu, China
| | - Yingfan Hu
- Chengdu University of Traditional Chinese Medicine Chengdu, China
| | - Li Xiang
- Chengdu University of Traditional Chinese Medicine Chengdu, China
| | - Sheng Li
- Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu, China
| | - Yi Yuan
- Chengdu University of Traditional Chinese MedicineChengdu, China; Chengdu Institute of Biology, Chinese Academy of SciencesChengdu, China
| | | | - Yan Zhang
- Chengdu University of Traditional Chinese Medicine Chengdu, China
| | - Wenge Huang
- Chengdu University of Traditional Chinese Medicine Chengdu, China
| | - Xianli Meng
- Chengdu University of Traditional Chinese Medicine Chengdu, China
| | - Ping Wang
- Chengdu University of Traditional Chinese Medicine Chengdu, China
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85
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Ribeiro ARS, do Nascimento Valença JD, da Silva Santos J, Boeing T, da Silva LM, de Andrade SF, Albuquerque-Júnior RLC, Thomazzi SM. The effects of baicalein on gastric mucosal ulcerations in mice: Protective pathways and anti-secretory mechanisms. Chem Biol Interact 2016; 260:33-41. [PMID: 27780710 DOI: 10.1016/j.cbi.2016.10.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/10/2016] [Accepted: 10/21/2016] [Indexed: 01/15/2023]
Abstract
Many flavonoids have been shown to present good results for the treatment of gastric ulcers. Baicalein, a bioactive flavonoid derived from the Scutellaria baicalensis Georgi root, possesses several biological effects, such as anti-inflammatory and antioxidant. This study was conducted to assess the gastroprotective properties of baicalein. Anti-ulcerogenic assay was performed using the protocol of ulcer induced by ethanol/HCl in mice; then, the role of presynaptic α2-receptors, sulfhydryl (SH) compounds, nitric oxide (NO), prostaglandin (PG) and ATP-sensitive K+ (KATP) channels in gastroprotection of baicalein was investigated. The levels of reduced glutathione (GSH) and the myeloperoxidase (MPO) activity were measured in the gastric mucosa. Parameters of gastric secretion (volume, [H+] and pH) were determined with or without the presence of the secretagogue agent histamine, as well as mucus in gastric contents, by the pylorus ligation model. In vitro H+,K+-ATPase activity was also determined. Baicalein (10, 30 and 100 mg/kg) exhibited a dose related gastroprotective effect (P < 0.001) against acidified ethanol-induced lesions. The intraperitoneal treatment of mice with a α2-adrenoreceptor antagonist (yohimbine; 2 mg/kg), a SH compounds blocker (N-ethylmaleimide, NEM; 10 mg/kg), a non-selective inhibitor of NO synthase (Nw-nitro-L-arginine methyl ester hydrochloride, L-NAME; 10 mg/kg), a non-selective inhibitor of cyclo-oxygenase (indomethacin; 10 mg/kg) or a KATP channel blocker (glibenclamide; 10 mg/kg) was able to reverse (P < 0.001) the gastroprotective response caused by baicalein (30 mg/kg). Baicalein (30 mg/kg; P < 0.05) was able to increase GSH levels and decreasing MPO activity. The intraduodenal treatment with baicalein (30 and 100 mg/kg) significantly increased (P < 0.05) the gastric mucus secretion. Additionally, the treatment with baicalein reduced (30 and 100 mg/kg; P < 0.05) the secretion volume and total acid secretion, and also increased (10, 30 and 100 mg/kg; P < 0.001) the pH value, after pylorus ligature. Baicalein (30 mg/kg) was also effective in inhibiting the effects of histamine on gastric secretion (volume, [H+] and pH; P < 0.001). Baicalein at 10 and 30 μg/mL showed anti-H+,K+-ATPase activity. In conclusion, the present results provide convincing evidence that baicalein could be used as a cytoprotective (preventive effect) and anti-ulcerogenic (anti-secretory effect) agent in the gastric ulcers.
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Affiliation(s)
- Ana Roseli S Ribeiro
- Departamento de Fisiologia, Universidade Federal de Sergipe, Av. Marechal Rondon, Cidade Universitária, CEP 49100-000 São Cristóvão, Sergipe, Brazil
| | - José Diego do Nascimento Valença
- Departamento de Fisiologia, Universidade Federal de Sergipe, Av. Marechal Rondon, Cidade Universitária, CEP 49100-000 São Cristóvão, Sergipe, Brazil
| | - Jeferson da Silva Santos
- Departamento de Fisiologia, Universidade Federal de Sergipe, Av. Marechal Rondon, Cidade Universitária, CEP 49100-000 São Cristóvão, Sergipe, Brazil
| | - Thaise Boeing
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, CEP 88302-202 Itajaí, Santa Catarina, Brazil
| | - Luisa Mota da Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, CEP 88302-202 Itajaí, Santa Catarina, Brazil
| | - Sérgio Faloni de Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, CEP 88302-202 Itajaí, Santa Catarina, Brazil
| | - Ricardo L C Albuquerque-Júnior
- Instituto de Tecnologia e Pesquisa-ITP, Universidade Tiradentes, Av. Murilo Dantas, 300, CEP 49032-490 Aracaju, Sergipe, Brazil
| | - Sara Maria Thomazzi
- Departamento de Fisiologia, Universidade Federal de Sergipe, Av. Marechal Rondon, Cidade Universitária, CEP 49100-000 São Cristóvão, Sergipe, Brazil.
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86
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Havermann S, Chovolou Y, Humpf HU, Wätjen W. Modulation of the Nrf2 signalling pathway in Hct116 colon carcinoma cells by baicalein and its methylated derivative negletein. PHARMACEUTICAL BIOLOGY 2016; 54:1491-1502. [PMID: 27143122 DOI: 10.3109/13880209.2015.1104703] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 10/01/2015] [Accepted: 10/03/2015] [Indexed: 06/05/2023]
Abstract
CONTEXT Baicalein is a major compound in extracts derived from Scutellaria baicalensis Georgi (Lamiaceae) which are used in the Traditional Chinese Medicine for the treatment of inflammatory and gastrointestinal diseases. This flavonoid is an activator of the Nrf2 signalling pathway but the molecular mechanism is not clearly established. OBJECTIVE We investigated the molecular mode of baicalein-mediated Nrf2-activation in Hct116 cells by the analysis of proteasomal activity, radical-scavenging activity and the comparison with baicalein derivatives. MATERIALS AND METHODS The radical-scavenging activity (TEAC, DCF) up to 25 μM, cytotoxicity (MTT assay, 48 h) up to 100 μM, proteasomal activity and the Nrf2-activation (luciferase assay, ubiquitinylation, western blot, Ser40-phosphorylation; incubation for 1 or 4 h) by concentrations up to 40 or 50 μM of the compounds were analysed in Hct116 human colon carcinoma cells. RESULTS No change in the ubiquitinylation of Nrf2, proteasomal activity and transcription of the NRF2 gene were detectable. Baicalein decreased the phosphorylation of Nrf2 (IC50-value approximately 20 μM) suggesting an inhibitory effect of the flavonoid on protein kinases. Since the activation of the Nrf2 pathway by baicalein might be also due to redox-activity of the compound, we investigated the effects of methylated baicalein derivatives oroxylin A, negeletein and baicaleintrimethylether. Oroxylin A and negletein showed a comparable redox-active potential, but only negletein (50 μM, 4 h) was able to activate Nrf2. CONCLUSION This result confirms the hypothesis that baicalein, a component of extracts derived from Baical Skullcap, causes an activation of Nrf2 independent of a modulation of the cellular redox potential.
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Affiliation(s)
- Susannah Havermann
- a Institute of Agricultural and Nutritional Sciences , Martin-Luther-Universität Halle-Wittenberg , Halle/Saale , Germany
- b Institute of Food Chemistry , Westfälische Wilhelms-Universität Münster , Münster , Germany
- c Institute of Toxicology , Heinrich-Heine-Universität Düsseldorf , Düsseldorf , Germany
| | - Yvonni Chovolou
- c Institute of Toxicology , Heinrich-Heine-Universität Düsseldorf , Düsseldorf , Germany
| | - Hans-Ulrich Humpf
- b Institute of Food Chemistry , Westfälische Wilhelms-Universität Münster , Münster , Germany
| | - Wim Wätjen
- a Institute of Agricultural and Nutritional Sciences , Martin-Luther-Universität Halle-Wittenberg , Halle/Saale , Germany
- c Institute of Toxicology , Heinrich-Heine-Universität Düsseldorf , Düsseldorf , Germany
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87
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Dong Q, Chu F, Wu C, Huo Q, Gan H, Li X, Liu H. Scutellaria baicalensis Georgi extract protects against alcohol‑induced acute liver injury in mice and affects the mechanism of ER stress. Mol Med Rep 2016; 13:3052-62. [PMID: 26936686 PMCID: PMC4805105 DOI: 10.3892/mmr.2016.4941] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Accepted: 01/04/2016] [Indexed: 12/14/2022] Open
Abstract
The aims of the present study were to examine the hepatoprotective effect of Scutellaria baicalensis Georgi extract (Scutellariae Radix extract; SRE) against acute alcohol-induced liver injury in mice, and investigate the mechanism of endoplasmic reticulum (ER) stress. High performance liquid chromatography was used for the phytochemical analysis of SRE. Animals were administered orally with 50% alcohol (12 ml/kg) 4 h following administration of doses of SRE every day for 14 days, with the exception of normal control group. The protective effect was investigated by measuring the levels of aspartate transaminase (AST), alanine transferase (ALT) and triglyceride (TG) in the serum, and the levels of glutathione (GSH) and malondialdehyde (MDA) in liver tissues. The levels of glucose-related protein 78 (GRP78) were detected using immunohistochemical localization and an enzyme-linked immunosorbent assay. Hepatocyte apoptosis was assessed using terminal-deoxynucleoitidyl transferase mediated nick end labeling. The SRE contained 31.2% baicalin. Pretreatment with SRE had a marked protective effect by reversing the levels of biochemical markers and levels of GRP78 in a dose-dependent manner. The results of the present study demonstrated that pretreatment with SRE exerted a marked hepatoprotective effect by downregulating the expression of GRP78, which is a marker of ER stress.
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Affiliation(s)
- Qingqing Dong
- Department of Pharmaceutical Preparation, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, P.R. China
| | - Fei Chu
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Chengzhu Wu
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Qiang Huo
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Huaiyong Gan
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Xiaoming Li
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
| | - Hao Liu
- Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui 233030, P.R. China
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88
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Zhao YL, Shang JH, Pu SB, Wang HS, Wang B, Liu L, Liu YP, Shen HM, Luo XD. Effect of total alkaloids from Alstonia scholaris on airway inflammation in rats. JOURNAL OF ETHNOPHARMACOLOGY 2016; 178:258-265. [PMID: 26707569 DOI: 10.1016/j.jep.2015.12.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 12/11/2015] [Accepted: 12/17/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alstonia scholaris (Apocynaceae) have been traditionally used for treatment of respiratory diseases in "dai" ethnopharmacy for hundreds years, especially for cough, asthma, phlegm, chronic obstructive pulmonary disease and so on. The formulas including the leaf extract have also been prescribed in hospitals and sold over the retail pharmacies. AIM OF THE STUDY A. scholaris is used as a traditional herbal medicine for the treatment of respiratory tract inflammation. However, there is no scientific evidence to validate the use of total alkaloids of A. scholaris in the literature. Here, we investigated the protective activity of total alkaloids (TA), extracted from the leaves of Alstonia scholaris, against lipopolysaccharide (LPS)-induced airway inflammation (AI) in rats. MATERIALS AND METHODS 200 μg/μL LPS was instilled intratracheally in each rat, and then the modeling animals were divided into six groups (n=10, each) randomly: sham group, LPS group, Dexamethasone [1.5mg/kg, intra-gastricly (i.g.)] group, and three different doses (7.5, 15, and 30 mg/kg, i.g.) of total alkaloids-treated groups. Corresponding drugs or vehicles were orally administered once per day for 7 days consecutively. The concentration of albumin (ALB), alkaline phosphatase (AKP), lactate dehydrogenase (LDH), and the number of inflammatory cells in bronchoalveolar lavage fluid (BALF) were determined by fully automatic biochemical analyzer and blood counting instrument. Nitric oxide (NO) level, malondialdehyde (MDA) content, and superoxide dismutase (SOD) activities were examined by multiskan spectrum, and histological change in the lungs was analyzed by H.E. staining. The levels of inflammatory cytokine tumor necrosis factor-α (TNF-α) and interleukin-8 (IL-8) were measured using ELISA. RESULTS Total alkaloids decreased the percentage of neutrophil, number of WBC, levels of ALB, AKP and LDH in the BALF, while increased the content of ALB in serum. It also improved SOD activity and increased NO level in the lungs, serum and BALF, and reduced the concentration of MDA in the lungs. Total alkaloids also inhibited the production of inflammatory cytokines TNF-α and IL-8 in the BALF and lung. Finally, histopathological examination indicated that total alkaloids attenuated tissue injury of the lungs in LPS-induced AI. CONCLUSIONS Total alkaloids have an inhibitory effect against LPS-induced airway inflammation in rats.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Shi-Biao Pu
- Yunnan University of TCM, Yunnan Province, Kunming 650500, China
| | - Heng-Shan Wang
- Guangxi Normal University, Guangxi Province, Guilin 541004, China
| | - Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Lu Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China
| | - Hong-Mei Shen
- The Third Affiliated Hospital of Kunming Medical University, Yunnan Province, Kunming 650106, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, China.
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Liu L, Shang Y, Li M, Han X, Wang J, Wang J. Curcumin ameliorates asthmatic airway inflammation by activating nuclear factor-E2-related factor 2/haem oxygenase (HO)-1 signalling pathway. Clin Exp Pharmacol Physiol 2016; 42:520-9. [PMID: 25739561 DOI: 10.1111/1440-1681.12384] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 02/26/2015] [Accepted: 02/26/2015] [Indexed: 12/27/2022]
Abstract
Previous studies have shown that curcumin alleviates asthma in vivo. However, the relationship between curcumin and the nuclear factor-E2-related factor 2 (Nrf2)/haem oxygenase (HO)-1 pathway in asthma treatment remains unknown. The aim of the present study was to investigate the mechanisms of curcumin involved in the amelioration of airway inflammation in a mouse asthma model. Curcumin was administrated to asthmatic mice, and bronchoalveolar lavage fluid was collected. Inflammatory cell infiltration was measured by Giemsa staining. Immunoglobulin E production in bronchoalveolar lavage fluid was measured by enzyme-linked immunosorbent assay. Histological analyses were evaluated with haematoxylin-eosin and periodic acid-Schiff staining. Airway hyperresponsiveness was examined by whole-body plethysmography. Nuclear factor-E2-related factor 2, HO-1, nuclear factor-κB and inhibitory κB/p-inhibitory κB levels in lung tissues were detected by western blot, and Nrf2 activity was measured by electrophoretic mobility shift assay. Tumour necrosis factor-α, interleukin (IL)-1β, and IL-6 levels in the small interfering RNA-transfected cells were detected by enzyme-linked immunosorbent assay. Curcumin treatment significantly reduced immunoglobulin E production, attenuated inflammatory cell accumulation and goblet cell hyperplasia, and ameliorated mucus secretion and airway hyperresponsiveness. Nuclear factor-E2-related factor 2 and HO-1 levels in lung tissues were significantly increased. Meanwhile, Nrf2 activity was enhanced. Nuclear factor-κB and p-inhibitory κB levels were elevated in the lung tissue of ovalbumin-challenged mice. Both were restored to normal levels after curcumin treatment. Haem oxygenase-1 and nuclear Nrf2 levels were enhanced in dose- and time-dependent manners in curcumin-treated RAW264.7 cells. Curcumin blocked lipopolysaccharide-upregulated expression of tumour necrosis factor-α, IL-1β, and IL-6. After the cells were transfected with HO-1 or Nrf2 small interfering RNA, lipopolysaccharide-induced pro-inflammation cytokine expression was significantly restored. In summary, curcumin might alleviate airway inflammation in asthma through the Nrf2/HO-1 pathway, potentially making it an effective drug in asthma treatment.
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Affiliation(s)
- Liyun Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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90
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Matrine Attenuates COX-2 and ICAM-1 Expressions in Human Lung Epithelial Cells and Prevents Acute Lung Injury in LPS-Induced Mice. Mediators Inflamm 2016; 2016:3630485. [PMID: 26880863 PMCID: PMC4736390 DOI: 10.1155/2016/3630485] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 11/08/2015] [Accepted: 11/10/2015] [Indexed: 01/07/2023] Open
Abstract
Matrine is isolated from Sophora flavescens and shows anti-inflammatory effects in macrophages. Here we evaluated matrine's suppressive effects on cyclooxygenase 2 (COX-2) and intercellular adhesion molecule-1 (ICAM-1) expressions in lipopolysaccharide- (LPS-) stimulated human lung epithelial A549 cells. Additionally, BALB/c mice were given various matrine doses by intraperitoneal injection, and then lung injury was induced via intratracheal instillation of LPS. In LPS-stimulated A549 cells, matrine inhibited the productions of interleukin-8 (IL-8), monocyte chemotactic protein-1, and IL-6 and decreased COX-2 expression. Matrine treatment also decreased ICAM-1 protein expression and suppressed the adhesion of neutrophil-like cells to inflammatory A549 cells. In vitro results demonstrated that matrine significantly inhibited mitogen-activated protein kinase phosphorylation and decreased nuclear transcription factor kappa-B subunit p65 protein translocation into the nucleus. In vivo data indicated that matrine significantly inhibited neutrophil infiltration and suppressed productions of tumor necrosis factor-α and IL-6 in mouse bronchoalveolar lavage fluid and serum. Analysis of lung tissue showed that matrine decreased the gene expression of proinflammatory cytokines, chemokines, COX-2, and ICAM-1. Our findings suggest that matrine improved lung injury in mice and decreased the inflammatory response in human lung epithelial cells.
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91
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Lv H, Yu Z, Zheng Y, Wang L, Qin X, Cheng G, Ci X. Isovitexin Exerts Anti-Inflammatory and Anti-Oxidant Activities on Lipopolysaccharide-Induced Acute Lung Injury by Inhibiting MAPK and NF-κB and Activating HO-1/Nrf2 Pathways. Int J Biol Sci 2016; 12:72-86. [PMID: 26722219 PMCID: PMC4679400 DOI: 10.7150/ijbs.13188] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 11/02/2015] [Indexed: 12/22/2022] Open
Abstract
Oxidative damage and inflammation are closely associated with the pathogenesis of acute lung injury (ALI). Thus, we explored the protective effect of isovitexin (IV), a glycosylflavonoid, in the context of ALI. To accomplish this, we created in vitro and in vivo models by respectively exposing macrophages to lipopolysaccharide (LPS) and using LPS to induce ALI in mice. In vitro, our results showed that IV treatment reduced LPS-induced pro-inflammatory cytokine secretion, iNOS and COX-2 expression and decreased the generation of ROS. Consistent findings were obtained in vivo. Additionally, IV inhibited H2O2-induced cytotoxicity and apoptosis. However, these effects were partially reversed following the use of an HO-1 inhibitor in vitro. Further studies revealed that IV significantly inhibited MAPK phosphorylation, reduced NF-κB nuclear translocation, and upregulated nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase 1 (HO-1) expression in RAW 264.7 cells. In vivo, pretreatment with IV attenuated histopathological changes, infiltration of polymorphonuclear granulocytes and endothelial activation, decreased the expression of ICAM-1 and VCAM-1, reduced the levels of MPO and MDA, and increased the content of GSH and SOD in ALI. Furthermore, IV treatment effectively increased Nrf2 and HO-1 expression in lung tissues. Therefore, IV may offer a protective role against LPS-induced ALI by inhibiting MAPK and NF-κB and activating HO-1/Nrf2 pathways.
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Affiliation(s)
- Hongming Lv
- 1. Institute of Translational Medicine, The First Hospital of Jilin University, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zhenxiang Yu
- 2. Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, China
| | - Yuwei Zheng
- 1. Institute of Translational Medicine, The First Hospital of Jilin University, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Lidong Wang
- 1. Institute of Translational Medicine, The First Hospital of Jilin University, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xiaofeng Qin
- 1. Institute of Translational Medicine, The First Hospital of Jilin University, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Genhong Cheng
- 1. Institute of Translational Medicine, The First Hospital of Jilin University, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xinxin Ci
- 1. Institute of Translational Medicine, The First Hospital of Jilin University, College of Veterinary Medicine, Jilin University, Changchun, China
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92
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Xu YY, Zhang YY, Ou YY, Lu XX, Pan LY, Li H, Lu Y, Chen DF. Houttuyniacordata Thunb. polysaccharides ameliorates lipopolysaccharide-induced acute lung injury in mice. JOURNAL OF ETHNOPHARMACOLOGY 2015; 173:81-90. [PMID: 26190353 PMCID: PMC7127486 DOI: 10.1016/j.jep.2015.07.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 06/19/2015] [Accepted: 07/16/2015] [Indexed: 05/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Houttuynia cordata (HC) has been used as a folk therapy to treat pulmonary infections. This study aimed to determine the role and mechanism of action of polysaccharides isolated from HC (HCP) in lipopolysaccharide (LPS)-induced ALI in the mice. MATERIALS AND METHODS LPS was delivered by the intratracheal route to Balb/c mice 2h before HCP (40, 80 and 160mg/kg) administration. RESULTS The number of total cells, protein and tumor necrosis factor-α (TNF-α) concentrations in bronchoalveolar lavage fluid, the wet/dry weight ratio (w/d) of lungs and pulmonary pathology of each mouse were analyzed, it was found that HCP significantly alleviated ALI induced by LPS. Moreover, in lungs of mice, it was found that the infiltration of inflammatory cells, the expression of Toll-like receptor 4 and complement deposition were significantly decreased by HCP treatment. In vitro assays showed that C5a, a complement activation product, induced significant macrophage migration and treatment with HCP prevented it. The in vitro results also proved that LPS increased nitric oxide and pro-inflammatory cytokines (TNF-α, interleukin-6, and interleukin-1β) production, and HCP antagonized these effects of LPS. It was also found that HCP alone augmented secretion of some pro-inflammatory cytokines. CONCLUSION These results indicate that HCP may alleviate LPS induced lung inflammatory injury, which may be associated with its inhibitory effect on the over activation of complement and macrophages. This suggests a potential role to treat ALI.
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Affiliation(s)
- Yan-Yan Xu
- Department of Pharmacology, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China
| | - Yun-Yi Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China.
| | - Ying-Ye Ou
- Department of Pharmacology, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China
| | - Xiao-Xiao Lu
- Department of Pharmacology, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China
| | - Ling-Yu Pan
- Department of Pharmacology, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China
| | - Hong Li
- Department of Pharmacology, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China
| | - Yan Lu
- Department of Pharmacognosy, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China
| | - Dao-Feng Chen
- Department of Pharmacognosy, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, China.
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93
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Jiang W, Luo F, Lu Q, Liu J, Li P, Wang X, Fu Y, Hao K, Yan T, Ding X. The protective effect of Trillin LPS-induced acute lung injury by the regulations of inflammation and oxidative state. Chem Biol Interact 2015; 243:127-34. [PMID: 26363199 DOI: 10.1016/j.cbi.2015.09.010] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/02/2015] [Accepted: 09/06/2015] [Indexed: 11/16/2022]
Abstract
Inflammation response and oxidative stress have been reported to be involved in the pathogenesis of acute lung injury (ALI). Accordingly, anti-inflammatory treatment is proposed to be a possible efficient therapeutic strategy for ALI. The purpose of our present study was to evaluate the anti-inflammatory efficacy of trillin (Tr) on ALI induced by lipopolysaccharide (LPS) in mice and explore the underlying mechanism. BALB/c mice received Tr (50, 100 mg/kg) intraperitoneally 1 h prior to the intratracheal instillation of lipopolysaccharide (LPS) challenge. Pretreatment with Tr at the dose of 50, 100 mg/kg markedly ameliorated lung wet-to-dry weight (W/D) ratio, myeloperoxidase (MPO) activity and pulmonary histopathological conditions. In addition, the protective efficacy of Tr might be attributed to the down-regulations of neutrophil infiltration, malondialdehyde (MDA), inflammatory cytokines and the up-regulations of super-oxide dismutase (SOD), catalase(CAT), glutathione(GSH), Glutathione Peroxidase(GSH-Px) in bronchoalveolar lavage fluid (BALF). Meanwhile, our study revealed some correlations between (NF-E2-related factor 2) Nrf2/heme oxygenase (HO)-1/nuclear factor-kappa B (NF-κB) pathways and the beneficial effect of Tr, as evidenced by the significant up-regulations of HO-1 and Nrf2 protein expressions as well as the down-regulations of p-NF-κB and p-inhibitor of NF-κB (IκB) in lung tissues. Taken together, our results indicated that Tr exhibited protective effect on LPS-induced ALI by the regulations of related inflammatory events via the activations of Nrf2, HO-1 and NF-κB pathway. The current study indicated that Tr could be a potentially effective candidate medicine for the treatment of ALI.
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Affiliation(s)
- Wenjiao Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Fen Luo
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, China
| | - Qianfeng Lu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Jingyan Liu
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, China
| | - Peijin Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaofan Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yeliu Fu
- The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu 322000, China
| | - Kun Hao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Tianhua Yan
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing, China.
| | - Xuansheng Ding
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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94
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Sahu BD, Mahesh Kumar J, Sistla R. Baicalein, a Bioflavonoid, Prevents Cisplatin-Induced Acute Kidney Injury by Up-Regulating Antioxidant Defenses and Down-Regulating the MAPKs and NF-κB Pathways. PLoS One 2015. [PMID: 26222683 PMCID: PMC4519041 DOI: 10.1371/journal.pone.0134139] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Acute renal failure is a serious complication of the anticancer drug cisplatin. The potential role of baicalein, a naturally occurring bioflavonoid on cisplatin-induced renal injury is unknown. Here, we assessed the effect of baicalein against a murine model of cisplatin-induced acute renal failure and investigated the underlying possible mechanisms. Renal function, kidney histology, inflammation, oxidative stress, renal mitochondrial function, proteins involved in apoptosis, nuclear translocation of Nrf2 and effects on intracellular signaling pathways such as MAPKs, and NF-κB were assessed. Pretreatment with baicalein ameliorated the cisplatin-induced renal oxidative stress, apoptosis and inflammation and improved kidney injury and function. Baicalein inhibited the cisplatin-induced expression of iNOS, TNF-α, IL-6 and mononuclear cell infiltration and concealed redox-sensitive transcription factor NF-κB activation via reduced DNA-binding activity, IκBα phosphorylation and p65 nuclear translocation in kidneys. Further studies demonstrated baicalein markedly attenuated cisplatin-induced p38 MAPK, ERK1/2 and JNK phosphorylation in kidneys. Baicalein also restored the renal antioxidants and increased the amount of total and nuclear accumulation of Nrf2 and downstream target protein, HO-1 in kidneys. Moreover, baicalein preserved mitochondrial respiratory enzyme activities and inhibited cisplatin-induced apoptosis by suppressing p53 expression, Bax/Bcl-2 imbalance, cytochrome c release and activation of caspase-9, caspase-3 and PARP. Our findings suggest that baicalein ameliorates cisplatin-induced renal damage through up-regulation of antioxidant defense mechanisms and down regulation of the MAPKs and NF-κB signaling pathways.
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Affiliation(s)
- Bidya Dhar Sahu
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, 500 007, India
| | - Jerald Mahesh Kumar
- Animal House Facility, CSIR-Centre for Cellular and Molecular Biology (CCMB), Hyderabad, 500 007, India
| | - Ramakrishna Sistla
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, 500 007, India
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95
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Heat-Processed Scutellariae Radix Enhances Anti-Inflammatory Effect against Lipopolysaccharide-Induced Acute Lung Injury in Mice via NF- κ B Signaling. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:456846. [PMID: 26167192 PMCID: PMC4488546 DOI: 10.1155/2015/456846] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 05/07/2015] [Accepted: 05/28/2015] [Indexed: 01/24/2023]
Abstract
The present study was conducted to examine whether heat-processed Scutellariae Radix has an ameliorative effect on lipopolysaccharide- (LPS-) induced acute lung injury in mice. The effects of Scutellariae Radix heat-processed at 160°C (HSR) were compared with those of nonheat-processed Scutellariae Radix (NSR). The LPS-treated group displayed a markedly decreased body weight and significantly increased lung weight; however, the administration of NSR or HSR improved both the body and lung weights. The increased oxidative stress and inflammatory biomarker levels in the serum and lung were reduced significantly with HSR. The reduced superoxide dismutase and catalase increased significantly by both NSR and HSR. Also, the dysregulated oxidative stress and inflammation were significantly ameliorated by NSR and HSR. The expression of inflammatory mediators and cytokines by nuclear factor-kappa B activation was modulated through inhibition of a nuclear factor kappa Bα degradation. Also, lung histological change was markedly suppressed by HSR rather than NSR. Overall, the ameliorative effects of HSR were superior to those when being nonheat-processed. The representative flavonoid contents of Scutellariae Radix that include baicalin, baicalein, and wogonin were greater by heat process. These data reveal heat-processed Scutellariae Radix may be a critical factor involved in the improvement of lung disorders caused by LPS.
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96
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Magnolol ameliorates lipopolysaccharide-induced acute lung injury in rats through PPAR-γ-dependent inhibition of NF-kB activation. Int Immunopharmacol 2015; 28:270-8. [PMID: 26072062 DOI: 10.1016/j.intimp.2015.05.051] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 05/26/2015] [Accepted: 05/31/2015] [Indexed: 11/22/2022]
Abstract
Acute lung injury (ALI) has a high morbidity and mortality rate due to the serious inflammation and edema occurred in lung. Magnolol extracted from Magnolia officinalis, has been reported to exhibit anti-inflammatory, and antioxidant activities. Peroxisome proliferator-activated receptors (PPARs) are known to exert a cytoprotective effect against cellular inflammatory stress and oxidative injury. The aim of this study was to explore the involvement of PPAR-γ in the beneficial effect of magnolol in lipopolysaccharide (LPS)-induced ALI. We found that treatment with magnolol greatly improved the pathological features of ALI evidenced by reduction of lung edema, polymorphonuclear neutrophil infiltration, ROS production, the levels of pro-inflammatory cytokines in bronchoalveolar lavage fluid (BALF), the expression of iNOS and COX-2, and NF-κB activation in lungs exposed to LPS. Importantly, magnolol is capable of increasing the PPAR-γ expression and activity in lungs of ALI. However, blocking PPAR-γ activity with GW9662 markedly abolished the protective and anti-inflammatory effects of magnolol. Taken together, the present study provides a novel mechanism accounting for the protective effect of magnolol in LPS-induced ALI is at least partly attributed to induction of PPAR-γ in lungs, and in turn suppressing NF-κB-related inflammatory responses.
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97
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Shin NR, Shin IS, Song HH, Hong JM, Kwon OK, Jeon CM, Kim JH, Lee SW, Lee JK, Jin H, Li WY, Oh SR, Hahn KW, Ahn KS. Callicarpa japonica Thunb. reduces inflammatory responses: A mouse model of lipopolysaccharide-induced acute lung injury. Int Immunopharmacol 2015; 26:174-80. [DOI: 10.1016/j.intimp.2015.01.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 01/21/2015] [Accepted: 01/27/2015] [Indexed: 11/25/2022]
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98
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Ribeiro D, Freitas M, Lima JLFC, Fernandes E. Proinflammatory Pathways: The Modulation by Flavonoids. Med Res Rev 2015; 35:877-936. [PMID: 25926332 DOI: 10.1002/med.21347] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Inflammation is a natural, carefully orchestrated response of the organism to tissue damage, involving various signaling systems and the recruitment of inflammatory cells. These cells are stimulated to release a myriad of mediators that amplify the inflammatory response and recruit additional cells. These mediators present numerous redundancies of functions, allowing a broad and effective inflammatory response, but simultaneously make the understanding of inflammation pathways much difficult. The extent of the inflammatory response is usually self-limited, although it depends on the balance between the pro- and anti-inflammatory signals. When that equilibrium is dislocated, a more widespread inflammatory response may take place. Flavonoids have been shown to be possible alternatives to the traditionally molecules used as anti-inflammatory agents. In fact, the biological activities of flavonoids include the modulation of the diverse phases of inflammatory processes, from the gene transcription and expression to the inhibition of the enzymatic activities and the scavenging of the reactive species. In the present review, the inflammatory network is widely revised and the flavonoids' broad spectrum of action in many of the analyzed inflammatory pathways is revised. This kind of integrated revision is original in the field, providing the reader the simultaneous comprehension of the inflammatory process and the potential beneficial activities of flavonoids.
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Affiliation(s)
- Daniela Ribeiro
- UCIBIO-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313, Porto, Portugal
| | - Marisa Freitas
- UCIBIO-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313, Porto, Portugal
| | - José L F C Lima
- UCIBIO-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313, Porto, Portugal
| | - Eduarda Fernandes
- UCIBIO-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313, Porto, Portugal
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99
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Li KC, Ho YL, Hsieh WT, Huang SS, Chang YS, Huang GJ. Apigenin-7-glycoside prevents LPS-induced acute lung injury via downregulation of oxidative enzyme expression and protein activation through inhibition of MAPK phosphorylation. Int J Mol Sci 2015; 16:1736-54. [PMID: 25590301 PMCID: PMC4307331 DOI: 10.3390/ijms16011736] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 01/07/2015] [Indexed: 12/31/2022] Open
Abstract
Apigenin-7-glycoside (AP7Glu) with multiple biological activities is a flavonoid that is currently prescribed to treat inflammatory diseases such as upper respiratory infections. Recently, several studies have shown that its anti-inflammatory activities have been strongly linked to the inhibition of secretion of pro-inflammatory proteins, such as inducible nitric oxide synthase (iNOs) and cyclooxygenase-2 (COX-2) induced through phosphorylation nuclear factor-κB (NF-κB) and mitogen-activated protein kinases (MAPK) pathways. Additionally, inflammation, which can decrease the activities of antioxidative enzymes (AOEs) is also observed in these studies. At the same time, flavonoids are reported to promote the activities of heme oxygenase-1 (HO-1) decreased by LPS. The purpose of this study was to assess these theories in a series of experiments on the suppressive effects of AP7Glu based on LPS-induced nitric oxide production in RAW264.7 macrophages in vitro and acute lung injury in mice in vivo. After six hours of lipopolysaccharide (LPS) stimulation, pulmonary pathological, myeloperoxidase (MPO) activity, total polymorphonuclear leukocytes (PMN) cells, cytokines in bronchoalveolar lavage fluid (BALF) and AOEs, are all affected and changed. Meanwhile, our data revealed that AP7Glu not only did significantly inhibit the LPS-enhanced inflammatory activity in lung, but also exhibited anti-inflammatory effect through the MAPK and inhibitor NF-κB (IκB) pathways.
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Affiliation(s)
- Kun-Cheng Li
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Yu-Ling Ho
- Department of Nursing, Hungkuang University, Taichung 433, Taiwan.
| | - Wen-Tsong Hsieh
- Department of Pharmacology, School of Medicine, China Medical University, Taichung 404, Taiwan.
| | - Shyh-Shyun Huang
- School of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Yuan-Shiun Chang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung 404, Taiwan.
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100
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Kim DH, Sung B, Chung HY, Kim ND. Modulation of Colitis-associated Colon Tumorigenesis by Baicalein and Betaine. J Cancer Prev 2014; 19:153-60. [PMID: 25337584 PMCID: PMC4189507 DOI: 10.15430/jcp.2014.19.3.153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Revised: 08/31/2014] [Accepted: 09/01/2014] [Indexed: 12/15/2022] Open
Abstract
In this review, we will summarize the current understanding of modulation of colitis-associated colon tumorigenesis by two natural products, baicalein and betaine, which have anti-inflammatory activities. Baicalein and betaine have been shown to provide various health benefits to organism in many ways. Baicalein is a phenolic flavonoid derived originally from the root of Scutellaria baicalensis Georgi. From ancient times, baicalein has widely been used in oriental medicines as an anti-inflammatory and anti-cancer therapy. Betaine, trimethylglycine, is an essential biochemical molecule of the methionine/homocysteine cycle and is synthesized by conversion of choline. Betaine is an important human nutrient obtained from various foods including sugar beet and lycium. Betaine has provided various health benefits including disease prevention. However, the action mechanisms of their activity remain poorly understood. Recent studies reported the effects of baicalein and betaine on cytotoxicity against colon cancer cells and chemically induced colitis-associated colon tumorigenesis in mice. Administrations of baicalein and betaine containing diets significantly inhibited the incidence of tumors and hyperplasia with down-regulation of inflammation. Therefore, baicalein and betaine might be applicable to the prevention of inflammation-associated colon carcinogenesis.
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Affiliation(s)
- Dong Hwan Kim
- Department of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan, Korea
| | - Bokyung Sung
- Department of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan, Korea
| | - Hae Young Chung
- Department of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan, Korea
| | - Nam Deuk Kim
- Department of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan, Korea
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