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Wang Z, Zhang G, Hu S, Fu M, Zhang P, Zhang K, Hao L, Chen S. Research progress on the protective effect of hormones and hormone drugs in myocardial ischemia-reperfusion injury. Biomed Pharmacother 2024; 176:116764. [PMID: 38805965 DOI: 10.1016/j.biopha.2024.116764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/05/2024] [Accepted: 05/17/2024] [Indexed: 05/30/2024] Open
Abstract
Ischemic heart disease (IHD) is a condition where the heart muscle does not receive enough blood flow, leading to cardiac dysfunction. Restoring blood flow to the coronary artery is an effective clinical therapy for myocardial ischemia. This strategy helps lower the size of the myocardial infarction and improves the prognosis of patients. Nevertheless, if the disrupted blood flow to the heart muscle is restored within a specific timeframe, it leads to more severe harm to the previously deprived heart tissue. This condition is referred to as myocardial ischemia/reperfusion injury (MIRI). Until now, there is a dearth of efficacious strategies to prevent and manage MIRI. Hormones are specialized substances that are produced directly into the circulation by endocrine organs or tissues in humans and animals, and they have particular effects on the body. Hormonal medications utilize human or animal hormones as their active components, encompassing sex hormones, adrenaline medications, thyroid hormone medications, and others. While several studies have examined the preventive properties of different endocrine hormones, such as estrogen and hormone analogs, on myocardial injury caused by ischemia-reperfusion, there are other hormone analogs whose mechanisms of action remain unexplained and whose safety cannot be assured. The current study is on hormones and hormone medications, elucidating the mechanism of hormone pharmaceuticals and emphasizing the cardioprotective effects of different endocrine hormones. It aims to provide guidance for the therapeutic use of drugs and offer direction for the examination of MIRI in clinical therapy.
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Affiliation(s)
- Zhongyi Wang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Gaojiang Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Shan Hu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Meilin Fu
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Pingyuan Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Kuo Zhang
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Liying Hao
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China.
| | - Sichong Chen
- Department of Pharmaceutical Toxicology, School of Pharmacy, China Medical University, Shenyang, 110122, China.
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2
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Mannino F, Urzì Brancati V, Lauro R, Pirrotta I, Rottura M, Irrera N, Cavallini GM, Pallio G, Gitto E, Manti S. Levosimendan and Dobutamin Attenuate LPS-Induced Inflammation in Microglia by Inhibiting the NF-κB Pathway and NLRP3 Inflammasome Activation via Nrf2/HO-1 Signalling. Biomedicines 2024; 12:1009. [PMID: 38790971 PMCID: PMC11117907 DOI: 10.3390/biomedicines12051009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/19/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
Hypovolemic shock is a circulatory failure, due to a loss in the effective circulating blood volume, that causes tissue hypoperfusion and hypoxia. This condition stimulates reactive oxygen species (ROS) and pro-inflammatory cytokine production in different organs and also in the central nervous system (CNS). Levosimendan, a cardioprotective inodilator, and dobutamine, a β1-adrenergic agonist, are commonly used for the treatment of hypovolemic shock, thanks to their anti-inflammatory and antioxidant effects. For this reason, we aimed at investigating levosimendan and dobutamine's neuroprotective effects in an "in vitro" model of lipopolysaccharide (LPS)-induced neuroinflammation. Human microglial cells (HMC3) were challenged with LPS (0.1 µg/mL) to induce an inflammatory phenotype and then treated with levosimendan (10 µM) or dobutamine (50 µM) for 24 h. Levosimendan and dobutamine significantly reduced the ROS levels and markedly increased Nrf2 and HO-1 protein expression in LPS-challenged cells. Levosimendan and dobutamine also decreased p-NF-κB expression and turned off the NLRP3 inflammasome together with its downstream signals, caspase-1 and IL-1β. Moreover, a reduction in TNF-α and IL-6 expression and an increase in IL-10 levels in LPS-stimulated HMC3 cells was observed following treatment. In conclusion, levosimendan and dobutamine attenuated LPS-induced neuroinflammation through NF-κB pathway inhibition and NLRP3 inflammasome activation via Nrf2/HO-1 signalling, suggesting that these drugs could represent a promising therapeutic approach for the treatment of neuroinflammation consequent to hypovolemic shock.
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Affiliation(s)
- Federica Mannino
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Valentina Urzì Brancati
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Rita Lauro
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Igor Pirrotta
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Michelangelo Rottura
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Gian Maria Cavallini
- Department of Surgery, Medicine, Dentistry and Morphological Sciences, with Interest in Transplants, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, 41121 Modena, Italy;
| | - Giovanni Pallio
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, 98125 Messina, Italy
| | - Eloisa Gitto
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (F.M.); (V.U.B.); (R.L.); (I.P.); (M.R.); (N.I.); (E.G.)
| | - Sara Manti
- Department of Human Pathology of Adult and Childhood Gaetano Barresi, University of Messina, 98125 Messina, Italy;
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3
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Wang H, Siren J, Perttunen S, Immonen K, Chen Y, Narumanchi S, Kosonen R, Paavola J, Laine M, Tikkanen I, Lakkisto P. Deficiency of heme oxygenase 1a causes detrimental effects on cardiac function. J Cell Mol Med 2024; 28:e18243. [PMID: 38509740 PMCID: PMC10955162 DOI: 10.1111/jcmm.18243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 03/22/2024] Open
Abstract
Humans lacking heme oxygenase 1 (HMOX1) display growth retardation, haemolytic anaemia, and vulnerability to stress; however, cardiac function remains unclear. We aimed to explore the cardiac function of zebrafish lacking hmox1a at baseline and in response to stress. We generated zebrafish hmox1a mutants using CRISPR/Cas9 genome editing technology. Deletion of hmox1a increases cardiac output and further induces hypertrophy in adults. Adults lacking hmox1a develop myocardial interstitial fibrosis, restrain cardiomyocyte proliferation and downregulate renal haemoglobin and cardiac antioxidative genes. Larvae lacking hmox1a fail to respond to hypoxia, whereas adults are insensitive to isoproterenol stimulation in the heart, suggesting that hmox1a is necessary for cardiac response to stress. Haplodeficiency of hmox1a stimulates non-mitochondrial respiration and cardiac cell proliferation, increases cardiac output in larvae in response to hypoxia, and deteriorates cardiac function and structure in adults upon isoproterenol treatment. Intriguingly, haplodeficiency of hmox1a upregulates cardiac hmox1a and hmox1b in response to isoproterenol. Collectively, deletion of hmox1a results in cardiac remodelling and abrogates cardiac response to hypoxia and isoproterenol. Haplodeficiency of hmox1a aggravates cardiac response to the stress, which could be associated with the upregulation of hmox1a and hmox1b. Our data suggests that HMOX1 homeostasis is essential for maintaining cardiac function and promoting cardioprotective effects.
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Affiliation(s)
- Hong Wang
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Juuso Siren
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Sanni Perttunen
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | | | - Yu‐Chia Chen
- Department of AnatomyUniversity of HelsinkiHelsinkiFinland
| | | | - Riikka Kosonen
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
| | - Jere Paavola
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Heart and Lung CentreUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Mika Laine
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Heart and Lung CentreUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Ilkka Tikkanen
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Abdominal Centre NephrologyUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Päivi Lakkisto
- Minerva Foundation Institute for Medical ResearchHelsinkiFinland
- Department of Clinical ChemistryUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
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Khairy A, Ghareeb DA, Celik I, Hammoda HM, Zaatout HH, Ibrahim RS. Forecasting of potential anti-inflammatory targets of some immunomodulatory plants and their constituents using in vitro, molecular docking and network pharmacology-based analysis. Sci Rep 2023; 13:9539. [PMID: 37308513 DOI: 10.1038/s41598-023-36540-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023] Open
Abstract
Most synthetic immunomodulatory medications are extremely expensive, have many disadvantages and suffer from a lot of side effects. So that, introducing immunomodulatory reagents from natural sources will have great impact on drug discovery. Therefore, this study aimed to comprehend the mechanism of the immunomodulatory activity of some natural plants via network pharmacology together with molecular docking and in vitro testing. Apigenin, luteolin, diallyl trisulfide, silibinin and allicin had the highest percentage of C-T interactions while, AKT1, CASP3, PTGS2, NOS3, TP53 and MMP9 were found to be the most enriched genes. Moreover, the most enriched pathways were pathways in cancer, fluid shear stress and atherosclerosis, relaxin signaling pathway, IL-17 signaling pathway and FoxO signaling pathway. Additionally, Curcuma longa, Allium sativum, Oleu europea, Salvia officinalis, Glycyrrhiza glabra and Silybum marianum had the highest number of P-C-T-P interactions. Furthermore, molecular docking analysis of the top hit compounds against the most enriched genes revealed that silibinin had the most stabilized interactions with AKT1, CASP3 and TP53, whereas luteolin and apigenin exhibited the most stabilized interactions with AKT1, PTGS2 and TP53. In vitro anti-inflammatory and cytotoxicity testing of the highest scoring plants exhibited equivalent outcomes to those of piroxicam.
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Affiliation(s)
- Asmaa Khairy
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Doaa A Ghareeb
- Bio-Screening and Preclinical Trial Lab, Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Ismail Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey
| | - Hala M Hammoda
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Hala H Zaatout
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Reham S Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt.
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5
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Chen DT, Rao W, Shen X, Chen L, Wan ZJ, Sheng XP, Fan TY. Pharmacological effects of higenamine based on signalling pathways and mechanism of action. Front Pharmacol 2022; 13:981048. [PMID: 36188548 PMCID: PMC9520082 DOI: 10.3389/fphar.2022.981048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Higenamine (HG) is a chemical compound found in various plants, such as aconite. Recent pharmacological studies have demonstrated its effectiveness in the management of many diseases. Several mechanisms of action of HG have been proposed; however, they have not yet been classified. This review summarises the signalling pathways and pharmacological targets of HG, focusing on its potential as a naturally extracted drug. Articles related to the pharmacological effects, signalling pathways and pharmacological targets of HG were selected by searching the keyword “Higenamine” in the PubMed, Web of Science and Google Scholar databases without limiting the search by publication years. HG possesses anti-oxidant, anti-apoptotic, anti-inflammatory, electrophysiology regulatory, anti-fibrotic and lipid-lowering activities. It is a structural analogue of catecholamines and possesses characteristics similar to those of adrenergic receptor ligands. It can modulate multiple targets, including anti-inflammation- and anti-apoptosis-related targets and some transcription factors, which directly or indirectly influence the disease course. Other naturally occurring compounds, such as cucurbitacin B (Cu B) and 6-gingerol (6-GR), can be combined with HG to enhance its anti-apoptotic activity. Although significant research progress has been made, follow-up pharmacological studies are required to determine the exact mechanism of action, new signalling pathways and targets of HG and the effects of using it in combination with other drugs.
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Affiliation(s)
- De-ta Chen
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wu Rao
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xue Shen
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lin Chen
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zi-jian Wan
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao-ping Sheng
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Tian-you Fan, ; Xiao-ping Sheng,
| | - Tian-you Fan
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Tian-you Fan, ; Xiao-ping Sheng,
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6
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Yao J, Miao Y, Zhang Y, Zhu L, Chen H, Wu X, Yang Y, Dai X, Hu Q, Wan M, Tang W. Dao-Chi Powder Ameliorates Pancreatitis-Induced Intestinal and Cardiac Injuries via Regulating the Nrf2-HO-1-HMGB1 Signaling Pathway in Rats. Front Pharmacol 2022; 13:922130. [PMID: 35899121 PMCID: PMC9310041 DOI: 10.3389/fphar.2022.922130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022] Open
Abstract
Dao-Chi powder (DCP) has been widely used in the treatment of inflammatory diseases in the clinical practice of traditional Chinese medicine, but has not been used in acute pancreatitis (AP). This study aimed to evaluate the effect of DCP on severe AP (SAP) and SAP-associated intestinal and cardiac injuries. To this end, an SAP animal model was established by retrograde injection of 3.5% taurocholic acid sodium salt into the biliopancreatic ducts of rats. Intragastric DCP (9.6 g/kg.BW) was administered 12 h after modeling. The pancreas, duodenum, colon, heart and blood samples were collected 36 h after the operation for histological and biochemical detection. The tissue distributions of the DCP components were determined and compared between the sham and the SAP groups. Moreover, molecular docking analysis was employed to investigate the interactions between the potential active components of DCP and its targets (Nrf2, HO-1, and HMGB1). Consequently, DCP treatment decreased the serum levels of amylase and the markers of gastrointestinal and cardiac injury, further alleviating the pathological damage in the pancreas, duodenum, colon, and heart of rats with SAP. Mechanistically, DCP rebalanced the pro-/anti-inflammatory cytokines and inhibited MPO activity and MDA levels in these tissues. Furthermore, Western blot and RT-PCR results showed that DCP intervention enhanced the expression of Nrf2 and HO-1 in the duodenum and colon of rats with SAP, while inhibiting the expression of HMGB1 in the duodenum and heart. HPLC-MS/MS analysis revealed that SAP promoted the distribution of ajugol and oleanolic acid to the duodenum, whereas it inhibited the distribution of liquiritigenin to the heart and ajugol to the colon. Molecular docking analysis confirmed that the six screened components of DCP had relatively good binding affinity with Nrf2, HO-1, and HMGB1. Among these, oleanolic acid had the highest affinity for HO-1. Altogether, DCP could alleviated SAP-induced intestinal and cardiac injuries via inhibiting the inflammatory responses and oxidative stress partially through regulating the Nrf2/HO-1/HMGB1 signaling pathway, thereby providing additional supportive evidence for the clinical treatment of SAP.
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Affiliation(s)
- Jiaqi Yao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yifan Miao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yumei Zhang
- Department of Traditional Chinese Medicine, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Lv Zhu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Huan Chen
- Clinical Trial Center, National Medical Products Administration Key Laboratory for Clinical Research and Evaluation of Innovative Drugs, West China Hospital, Sichuan University, Chengdu, China
| | - Xiajia Wu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yue Yang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoyu Dai
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Hu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Wenfu Tang,
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7
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Tang ZR, Deng SL, Lian ZX, Yu K. Terazosin reduces steroidogenic factor 1 and upregulates heat shock protein 90 expression in LH-induced bovine ovarian theca cells. Free Radic Biol Med 2021; 163:190-195. [PMID: 33352221 DOI: 10.1016/j.freeradbiomed.2020.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 01/19/2023]
Abstract
Hyperthecosis syndrome is a common endocrine system metabolic disorder in women of childbearing age. The main symptoms are elevated androgen levels, abnormal ovulation, and excessive oxidative stress. Currently, there is no effective treatment for hyperthecosis syndrome. α(1)-adrenergic receptor (ADRA1) is involved in the metabolic pathway of ovarian steroid hormone. This study studied the mechanism of the ADRA1 inhibitor terazosin in the LH-induced bovine theca cells in vitro. We found that terazosin regulates the expression of steroidogenic factor 1 (SF1) and downstream genes through the ERK1/2 pathway, reducing androgen content. Terazosin promotes the expression of HSP90 and reduces the activity of iNOS. In addition, Terazosin up-regulates the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and its downstream gene γ-GCS, which improves the ability of theca cells to resist oxidative stress. This study provides a reference for the treatment of human hyperthecosis syndrome.
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Affiliation(s)
- Zi-Run Tang
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Shou-Long Deng
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zheng-Xing Lian
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Kun Yu
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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8
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Funes SC, Rios M, Fernández-Fierro A, Covián C, Bueno SM, Riedel CA, Mackern-Oberti JP, Kalergis AM. Naturally Derived Heme-Oxygenase 1 Inducers and Their Therapeutic Application to Immune-Mediated Diseases. Front Immunol 2020; 11:1467. [PMID: 32849503 PMCID: PMC7396584 DOI: 10.3389/fimmu.2020.01467] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
Heme oxygenase (HO) is the primary antioxidant enzyme involved in heme group degradation. A variety of stimuli triggers the expression of the inducible HO-1 isoform, which is modulated by its substrate and cellular stressors. A major anti-inflammatory role has been assigned to the HO-1 activity. Therefore, in recent years HO-1 induction has been employed as an approach to treating several disorders displaying some immune alterations components, such as exacerbated inflammation or self-reactivity. Many natural compounds have shown to be effective inductors of HO-1 without cytotoxic effects; among them, most are chemicals present in plants used as food, flavoring, and medicine. Here we discuss some naturally derived compounds involved in HO-1 induction, their impact in the immune response modulation, and the beneficial effect in diverse autoimmune disorders. We conclude that the use of some compounds from natural sources able to induce HO-1 is an attractive lifestyle toward promoting human health. This review opens a new outlook on the investigation of naturally derived HO-1 inducers, mainly concerning autoimmunity.
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Affiliation(s)
- Samanta C Funes
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mariana Rios
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ayleen Fernández-Fierro
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Camila Covián
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A Riedel
- Departamento de Ciencias Biológicas, Millenium Institute on Immunolgy and Immunotherapy, Facultad Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Juan Pablo Mackern-Oberti
- Instituto de Medicina y Biología Experimental de Cuyo, IMBECU CCT Mendoza- CONICET, Mendoza, Argentina.,Facultad de Ciencias Médicas, Instituto de Fisiología, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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9
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Rehman A, Baloch NUA, Morrow JP, Pacher P, Haskó G. Targeting of G-protein coupled receptors in sepsis. Pharmacol Ther 2020; 211:107529. [PMID: 32197794 PMCID: PMC7388546 DOI: 10.1016/j.pharmthera.2020.107529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/11/2020] [Accepted: 03/11/2020] [Indexed: 12/11/2022]
Abstract
The Third International Consensus Definitions (Sepsis-3) define sepsis as life-threatening multi-organ dysfunction caused by a dysregulated host response to infection. Sepsis can progress to septic shock-an even more lethal condition associated with profound circulatory, cellular and metabolic abnormalities. Septic shock remains a leading cause of death in intensive care units and carries a mortality of almost 25%. Despite significant advances in our understanding of the pathobiology of sepsis, therapeutic interventions have not translated into tangible differences in the overall outcome for patients. Clinical trials of antagonists of various pro-inflammatory mediators in sepsis have been largely unsuccessful in the past. Given the diverse physiologic roles played by G-protein coupled receptors (GPCR), modulation of GPCR signaling for the treatment of sepsis has also been explored. Traditional pharmacologic approaches have mainly focused on ligands targeting the extracellular domains of GPCR. However, novel techniques aimed at modulating GPCR intracellularly through aptamers, pepducins and intrabodies have opened a fresh avenue of therapeutic possibilities. In this review, we summarize the diverse roles played by various subfamilies of GPCR in the pathogenesis of sepsis and identify potential targets for pharmacotherapy through these novel approaches.
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Affiliation(s)
- Abdul Rehman
- Department of Medicine, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Noor Ul-Ain Baloch
- Department of Medicine, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - John P Morrow
- Department of Medicine, Columbia University, New York City, NY, United States
| | - Pál Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York City, NY, United States.
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10
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Fan H, Wu Q, Peng L, Li D, Dong Y, Cao M, Liu P, Wang X, Hu X, Wang Y. Phyllolobium chinense Fisch Flavonoids (PCFF) Suppresses the M1 Polarization of LPS-Stimulated RAW264.7 Macrophages by Inhibiting NF-κB/iNOS Signaling Pathway. Front Pharmacol 2020; 11:864. [PMID: 32625088 PMCID: PMC7314944 DOI: 10.3389/fphar.2020.00864] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 05/26/2020] [Indexed: 12/19/2022] Open
Abstract
Background M1 macrophage plays an important role in inflammatory reaction. In this study, potential anti-inflammatory effect of Phyllolobium chinense Fisch flavonoids (PCFF) was assessed via Zebrafish acute inflammation model in vivo and LPS-induced pro-inflammatory M1 macrophage model in vitro. Methods The quality control of P. chinense Fisch flavonoids (PCFF) was analyzed by HPLC. Anti-inflammatory effect of PCFF on the acute injured zebrafish was evaluated by the migration of fluorescence labeled macrophages and neutrophils, and the gene expression of inflammatory factors. In addition, the anti-inflammatory mechanism of PCFF was investigated by the related gene expression and related signaling pathway regulation of pro-inflammatory mediators in LPS-induced pro-inflammatory M1 RAW264.7 macrophage. Results P. chinense Fisch flavonoids (PCFF) markedly suppressed macrophage and neutrophil migration and iNOS gene expression in acute injured zebrafish with tail-cutting. PCFF significantly inhibited NO overproduction and iNOS gene overexpression in LPS-sitimulated pro-inflammatory M1 RAW264.7 macrophages. What's more, PCFF could evidently decrease p65 protein production, but had no effect on the production of P38, JNK and ERK1/2 proteins. Conclusion P. chinense Fisch flavonoids (PCFF) have a remarkable inhibitory effect on the inflammatory response in acute injured zebrafish and LPS-stimulated M1 RAW264.7 macrophage. The pharmacological mechanism may be related to the regulation of NO overproduction and the inhibition of NF-κB/iNOS signaling pathway.
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Affiliation(s)
- Hua Fan
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiong Wu
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Longping Peng
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Du Li
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yidan Dong
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Min Cao
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ping Liu
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xu Wang
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Xudong Hu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Youhua Wang
- Cardiovascular Department, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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11
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Ciprandi G, Bellussi LM, Passali GC, Damiani V, Passali D. HMGB1 in nasal inflammatory diseases: a reappraisal 30 years after its discovery. Expert Rev Clin Immunol 2020; 16:457-463. [PMID: 32252560 DOI: 10.1080/1744666x.2020.1752668] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | | | | | - Valerio Damiani
- Medical Department, Drugs Minerals and Generics, Pomezia, Italy
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12
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The Role of IL-33 in Experimental Heart Transplantation. Cardiol Res Pract 2020; 2020:6108362. [PMID: 32257426 PMCID: PMC7106886 DOI: 10.1155/2020/6108362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/24/2019] [Accepted: 12/31/2019] [Indexed: 01/17/2023] Open
Abstract
Interleukin-33 (IL-33) is a member of the IL-1 family of proteins that are produced by a variety of cell types in multiple tissues. Under conditions of cell injury or death, IL-33 is passively released from the nucleus and acts as an "alarmin" upon binding to its specific receptor ST2, which leads to proinflammatory or anti-inflammatory effects depending on the pathological environment. To date, numerous studies have investigated the roles of IL-33 in human and murine models of diseases of the nervous system, digestive system, pulmonary system, as well as other organs and systems, including solid organ transplantation. With graft rejection and ischemia-reperfusion injury being the most common causes of grafted organ failure or dysfunction, researchers have begun to investigate the role of IL-33 in the immune-related mechanisms of graft tolerance and rejection using heart transplantation models. In the present review, we summarize the identified roles of IL-33 as well as the corresponding mechanisms by which IL-33 acts within the progression of graft rejection after heart transplantation in animal models.
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Hussain T, Yuan D, Tan B, Murtaza G, Rahu N, Kalhoro MS, Kalhoro DH, Yin Y. Eucommia ulmoides flavones (EUF) abrogated enterocyte damage induced by LPS involved in NF-κB signaling pathway. Toxicol In Vitro 2019; 62:104674. [PMID: 31669396 DOI: 10.1016/j.tiv.2019.104674] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/28/2019] [Accepted: 10/01/2019] [Indexed: 01/22/2023]
Abstract
This study was conducted to explore the regulatory mechanism of Eucommia ulmoides flavones (EUF) using enterocyte damage model induced by lipopolysaccharide (LPS). Intestinal porcine epithelial cell line (IPEC-J2) cells were cultured in Dulbecco's modified eagle medium with high glucose (DMEM-H) medium containing 0 or 10 μg/mL EUF, 0 or 40 ng/mL LPS. The results showed that LPS impaired DNA synthesis, cell viability, mitochondrial function, arrested cell cycle and induced apoptosis, reduced SOD activity while the EUF treated cells provided beneficial effect on all these parameters (P < 0.05). The addition of EUF increased phosphorylated Akt, IκBα and phosphorylated IKKα/β, but decreased Bax and Caspase-3 protein expressions in LPS-treated cells (P < 0.05). For the second experiment, cells were treated by DMEM-H medium containing 10 μg/mL EUF+ 40 ng/mL LPS or 10 μg/mL EUF+ 40 ng/mL LPS+ 10 μmol/L LY29400. EUF + LPS + LY29400 treatment significantly reduced cell viability, proliferation, mitochondrial bioenergetics parameters, SOD activity, and decreased protein expressions of PI3K, p-Akt, p-IKKα/β, p-NFκB and Bax (P < 0.05). These findings revealed the cytoprotective effects of EUF in enterocyte, which may involve the PI3K-NFκB signaling pathway, and it provides a theoretical basis for exploration of EUF as a potential anti-inflammatory compound to intervene intestinal inflammatory diseases.
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Affiliation(s)
- Tarique Hussain
- Laboratory of Animal Nutritional Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, Hunan, China; University of the Chinese Academy of Sciences, Beijing 10008, China; Animal Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB), P.O.Box: 128, Jhang Road, Faisalabad, Pakistan
| | - Diaxiu Yuan
- Department of Medicine, Jishou University, Jishou, Hunan 416000, China.
| | - Bie Tan
- Laboratory of Animal Nutritional Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, Hunan, China; University of the Chinese Academy of Sciences, Beijing 10008, China.
| | - Ghulam Murtaza
- Shaheed Benazir Bhutto University of Veterinary & Animal Sciences, Sakrand, Sindh 67210, Pakistan
| | - Najma Rahu
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Sindh 70050, Pakistan
| | - Muhammed Saleem Kalhoro
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Sindh 70050, Pakistan
| | - Dildar Hussain Kalhoro
- Shaheed Benazir Bhutto University of Veterinary & Animal Sciences, Sakrand, Sindh 67210, Pakistan
| | - Yulong Yin
- Laboratory of Animal Nutritional Physiology and Metabolic Processes, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, Hunan, China; University of the Chinese Academy of Sciences, Beijing 10008, China
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Eltobshy SAG, Hussein AM, Elmileegy AA, Askar MH, Khater Y, Metias EF, Helal GM. Effects of heme oxygenase-1 upregulation on isoproterenol-induced myocardial infarction. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2019; 23:203-217. [PMID: 31080351 PMCID: PMC6488703 DOI: 10.4196/kjpp.2019.23.3.203] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/23/2018] [Accepted: 12/31/2018] [Indexed: 12/18/2022]
Abstract
The present study was designed to examine the effect of heme oxygenase-1 (HO-1) induction by cobalt protoporphyrin (CoPP) on the cardiac functions and morphology, electrocardiogram (ECG) changes, myocardial antioxidants (superoxide dismutase [SOD] and glutathione [GSH]), and expression of heat shock protein (Hsp) 70 and connexin 43 (Cx-43) in myocardial muscles in isoproterenol (ISO) induced myocardial infarction (MI). Thirty two adult male Sprague Dawely rats were divided into 4 groups (each 8 rats): normal control (NC) group, ISO group: received ISO at dose of 150 mg/kg body weight intraperitoneally (i.p.) for 2 successive days; ISO + Trizma group: received (ISO) and Trizma (solvent of CoPP) at dose of 5 mg/kg i.p. injection 2 days before injection of ISO, with ISO at day 0 and at day 2 after ISO injections; and ISO + CoPP group: received ISO and CoPP at a dose of 5 mg/kg dissolved in Trizma i.p. injection as Trizma. We found that, administration of ISO caused significant increase in heart rate, corrected QT interval, ST segment, cardiac enzymes (lactate dehydrogenase, creatine kinase-muscle/brain), cardiac HO-1, Hsp70 with significant attenuation in myocardial GSH, SOD, and Cx-43. On the other hand, administration of CoPP caused significant improvement in ECG parameters, cardiac enzymes, cardiac morphology; antioxidants induced by ISO with significant increase in HO-1, Cx-43, and Hsp70 expression in myocardium. In conclusions, we concluded that induction of HO-1 by CoPP ameliorates ISO-induced myocardial injury, which might be due to up-regulation of Hsp70 and gap junction protein (Cx-43).
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Affiliation(s)
- Somaia A G Eltobshy
- Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Abdelaziz M Hussein
- Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Asaad A Elmileegy
- Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Mona H Askar
- Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Yomna Khater
- Medical Experimental Research Center, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Emile F Metias
- Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ghada M Helal
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
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PKA regulates HMGB1 through activation of IGFBP-3 and SIRT1 in human retinal endothelial cells cultured in high glucose. Inflamm Res 2018; 67:1013-1019. [PMID: 30328477 DOI: 10.1007/s00011-018-1196-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/05/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE AND DESIGN Inflammation is a key component of a number of diseases, including diabetic retinopathy. We investigated the cellular pathway by which protein kinase A (PKA) inhibited high mobility group box 1 (HMGB1). METHODS Primary human retinal endothelial cells (REC) were grown in normal glucose (5 mM) or high glucose (25 mM). Cells in high glucose were treated with exchange protein for cAMP 1 (Epac1) and IGFBP-3 siRNA. Additional cells in high glucose were treated with forskolin, a PKA agonist, and Epac1 siRNA. Some cells were treated with a plasmid for insulin-like growth factor binding protein 3 (IGFBP-3) that does not bind IGF-1. Finally, some REC received Ex527, a sirtuin 1 (SIRT1) antagonist, prior to forskolin treatment. Protein analyses were done for HMGB1, Epac1, IGFBP-3, SIRT1, and PKA. RESULTS PKA inhibited cytoplasmic HMGB1, independent of Epac1 actions. PKA activated IGFBP-3 and SIRT1 to inhibit cytoplasmic HMGB1. High glucose inhibited SIRT1 levels and increased cytoplasmic HMGB1 in REC. CONCLUSIONS PKA requires active IGFBP-3 and SIRT1 to inhibit HMGB1 inflammatory actions in the retina vasculature. Activation of these pathways may offer new targets for therapy development.
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Wang W, Wu L, Li Q, Zhang Z, Xu L, Lin C, Gao L, Zhao K, Liang F, Zhang Q, Zhou M, Jiang W. Madecassoside prevents acute liver failure in LPS/D-GalN-induced mice by inhibiting p38/NF-κB and activating Nrf2/HO-1 signaling. Biomed Pharmacother 2018; 103:1137-1145. [PMID: 29715757 DOI: 10.1016/j.biopha.2018.04.162] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 12/30/2022] Open
Abstract
Madecassoside (MA), a triterpenoid saponin isolated from Centella asiatica, exerts various pharmacological activities including antioxidative and anti-inflammatory effects. The aim of this study was to explore the protective effect of MA in the treatment of lipopolysaccharide (LPS) and D-galactosamine (D-GalN)-induced acute liver failure(ALF) in mice. We hypothesized that MA administration may decrease the degree of liver injury caused by LPS/D-GalN. In this study, we investigated this hypothesis by treating a mouse model of LPS/D-GalN-induced liver injury with MA. Our study demonstrated that MA (20 mg/kg and 40 mg/kg) treatment for 10 days attenuated LPS/D-GalN-induced liver injury by protecting liver function, suppressing the production of inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6, and recovering antioxidant enzyme activity. MA also significantly suppressed LPS-stimulated protein levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 by blocking the phosphorylation of p38 mitogen-activated protein kinase (MAPK) and eukaryotic transcription factor nuclear factor-kappa B (NF-κB). In addition, MA treatment enhanced protein levels of heme oxygenase (HO)-1 and anti-oxidant enzymes (superoxide dismutase, catalase, and glutathione peroxidase) through the upregulation of nuclear factor E2-related factor 2 (Nrf2) in LPS-stimulated liver injury. These results suggest that MA is a promising agent for the treatment of LPS/D-GalN-induced liver injury that could serve as a candidate for the development of a hepatoprotective drug against ALF.
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Affiliation(s)
- Wei Wang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Lingling Wu
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Qing Li
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Zhuo Zhang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Liba Xu
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Caixia Lin
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Ling Gao
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Kaili Zhao
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Fei Liang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Qing Zhang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Mei Zhou
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Weizhe Jiang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China.
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Kim H, Kim SR, Je J, Jeong K, Kim S, Kim HJ, Chang KC, Park SW. The proximal tubular α7 nicotinic acetylcholine receptor attenuates ischemic acute kidney injury through Akt/PKC signaling-mediated HO-1 induction. Exp Mol Med 2018; 50:1-17. [PMID: 29674665 PMCID: PMC5938048 DOI: 10.1038/s12276-018-0061-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 12/20/2017] [Accepted: 01/03/2018] [Indexed: 11/09/2022] Open
Abstract
Activation of the α7 nicotinic acetylcholine receptor (α7nAChR) has been shown to attenuate excessive inflammation by inhibiting proinflammatory cytokines during ischemia-reperfusion (IR) injury; however, the underlying kidney-specific molecular mechanisms remain unclear. The protective action of α7nAChR against renal IR injury was investigated using a selective α7nAChR agonist and antagonist. α7nAChR activation reduced plasma creatinine levels and tubular cell damage, whereas α7nAChR inhibition aggravated the IR-induced phenotype. α7nAChR activation decreased neutrophil infiltration and proinflammatory cytokine expression, increased heme oxygenase-1 (HO-1) expression, and reduced proximal tubular apoptosis after IR as shown by terminal deoxynucleotidyl transferase dUTP nick-end labeling staining and caspase-3 cleavage. In this study, we first showed that α7nAChR activation in the proximal tubules induced HO-1 expression through the phosphoinositide 3-kinase (PI3K)/Akt and protein kinase C (PKC) signaling pathway in vivo in renal IR mice and in vitro in proximal tubular cells. Chemical inhibitors of PKC or PI3K/Akt and small interfering RNA-mediated PKC silencing confirmed the signal specificity of α7nAChR-mediated HO-1 induction in the proximal tubular cells. α7nAChR activation inhibited high-mobility group box 1 release by inducing HO-1 expression and reduced proinflammatory cytokine gene expression and apoptotic cell death in tumor necrosis factor α-stimulated proximal tubular cells. Taken together, we conclude that α7nAChR activation in proximal tubular cells directly protects cells against renal IR injury by inducing HO-1 expression through PI3K/Akt and PKC signaling.
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Affiliation(s)
- Hwajin Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - So Ra Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Jihyun Je
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Kyuho Jeong
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Sooji Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Hye Jung Kim
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Ki Churl Chang
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Sang Won Park
- Department of Pharmacology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.
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Park JY, Kim SI, Lee HJ, Kim SS, Kwon YS, Chun W. Isorhamnetin-3-O-Glucuronide Suppresses JNK and p38 Activation and Increases Heme-Oxygenase-1 in Lipopolysaccharide-Challenged RAW264.7 Cells. Drug Dev Res 2017; 77:143-51. [PMID: 27113811 DOI: 10.1002/ddr.21301] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 03/08/2016] [Indexed: 12/24/2022]
Abstract
Preclinical Research Isorhanmetin (ISH) exhibits a wide range of biological properties including anticancer, anti-oxidant and anti-inflammatory activities. However, the pharmacological properties of isorhamnetin-3-O-glucuronide (IG), a glycoside derivative of ISH, have not been extensively examined. The objective of this study was to examine the anti-inflammatory properties of IG and its underlying mechanism in lipopolysaccharide (LPS)-challenged RAW264.7 macrophage cells in comparison with its aglycone, ISH. IG suppressed LPS-induced extracellular secretion of the proinflammatory mediators, nitric oxide (NO) and PGE2 , and proinflammatory protein expressions of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2. IG also increased expression of heme oxygenase-1 (HO-1). IG attenuated LPS-induced activation of c-Jun N-terminal kinase (JNK) and p38 in a concentration-dependent manner with negligible suppression of extracellular signal-regulated kinases (ERK) phosphorylation. In conclusion, this study demonstrates that IG exerts anti-inflammatory activity by increasing HO-1 expression and by suppressing JNK and p38 signaling pathways in LPS-challenged RAW264.7 macrophage cells. Drug Dev Res 77 : 143-151, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jin-Young Park
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, 200-701, Korea
| | - Song-In Kim
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, 200-701, Korea
| | - Hee Jae Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, 200-701, Korea
| | - Sung-Soo Kim
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, 200-701, Korea
| | - Yong-Soo Kwon
- College of Pharmacy, Kangwon National University, Chuncheon, 200-701, Korea
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon, 200-701, Korea
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Jung SM, Lee J, Baek SY, Lee J, Jang SG, Hong SM, Park JS, Cho ML, Park SH, Kwok SK. Ethyl pyruvate ameliorates inflammatory arthritis in mice. Int Immunopharmacol 2017; 52:333-341. [PMID: 28987932 DOI: 10.1016/j.intimp.2017.09.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES Ethyl pyruvate (EP) is the ethyl ester of pyruvate and has antioxidative and anti-inflammatory effects. This study aimed to evaluate the therapeutic effect of EP in inflammatory arthritis and to identify the underlying mechanisms. METHODS Mice with collagen-induced arthritis (CIA) were treated with the vehicle control or EP at 20mg/kg, and clinical and histological analyses were performed on the animals. The differentiation of murine CD4+ T cells into T helper 17 (Th17) cells in the presence of EP was investigated in vitro. The effects of EP on osteoclastogenesis were determined by staining for tartrate-resistant acid phosphatase, and measuring the mRNA levels of osteoclastogenesis-related genes. The expression of high-mobility group box 1 (HMGB1) was evaluated after EP therapy using immunohistochemical staining and Western blotting. RESULTS EP significantly improved the clinical and histological features of arthritis in CIA mice. EP suppressed the differentiation of CD4+ T cells into Th17 cells, and inhibited the expression of RORγt. The generation of osteoclasts and osteoclastogenic markers from murine and human monocytes was significantly reduced in the presence of EP. The expression of HMGB1 in the synovium was significantly lower in CIA mice treated with EP, compared to control CIA mice. During osteoclastogenesis, HMGB1 release from monocytes was inhibited in the presence of EP. CONCLUSIONS EP attenuated synovial inflammation and bone destruction in the experimental arthritis model through suppression of IL-17 and HMGB-1. The data suggests that EP could be a novel therapeutic agent for the treatment of inflammatory arthritis, such as rheumatoid arthritis.
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Affiliation(s)
- Seung Min Jung
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jaeseon Lee
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung Ye Baek
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Juhyun Lee
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Se Gwang Jang
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Min Hong
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin-Sil Park
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Mi-La Cho
- Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Hwan Park
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Ki Kwok
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Rheumatism Research Center, Catholic Institutes of Medical Science, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Bhatt NP, Park JY, Lee HJ, Kim SS, Kwon YS, Chun W. Apocynin protects mesangial cells from lipopolysaccharide-induced inflammation by exerting heme oxygenase 1-mediated monocyte chemoattractant protein-1 suppression. Int J Mol Med 2017; 40:1294-1301. [DOI: 10.3892/ijmm.2017.3090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 08/01/2017] [Indexed: 11/06/2022] Open
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21
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Robertson FP, Fuller BJ, Davidson BR. An Evaluation of Ischaemic Preconditioning as a Method of Reducing Ischaemia Reperfusion Injury in Liver Surgery and Transplantation. J Clin Med 2017; 6:jcm6070069. [PMID: 28708111 PMCID: PMC5532577 DOI: 10.3390/jcm6070069] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/22/2017] [Accepted: 07/04/2017] [Indexed: 12/16/2022] Open
Abstract
Liver Ischaemia Reperfusion (IR) injury is a major cause of post-operative liver dysfunction, morbidity and mortality following liver resection surgery and transplantation. There are no proven therapies for IR injury in clinical practice and new approaches are required. Ischaemic Preconditioning (IPC) can be applied in both a direct and remote fashion and has been shown to ameliorate IR injury in small animal models. Its translation into clinical practice has been difficult, primarily by a lack of knowledge regarding the dominant protective mechanisms that it employs. A review of all current studies would suggest that IPC/RIPC relies on creating a small tissue injury resulting in the release of adenosine and l-arginine which act through the Adenosine receptors and the haem-oxygenase and endothelial nitric oxide synthase systems to reduce hepatocyte necrosis and improve the hepatic microcirculation post reperfusion. The next key step is to determine how long the stimulus requires to precondition humans to allow sufficient injury to occur to release the potential mediators. This would open the door to a new therapeutic chapter in this field.
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Affiliation(s)
- Francis P Robertson
- Division of Surgery and Interventional Science, Royal Free Campus, University College London, 9th Floor, Royal Free Hospital, Pond Street, London NW3 2QG, UK.
| | - Barry J Fuller
- Division of Surgery and Interventional Science, Royal Free Campus, University College London, 9th Floor, Royal Free Hospital, Pond Street, London NW3 2QG, UK.
| | - Brian R Davidson
- Division of Surgery and Interventional Science, Royal Free Campus, University College London, 9th Floor, Royal Free Hospital, Pond Street, London NW3 2QG, UK.
- Department of Hepaticopancreatobiliary Surgery and Liver Transplantation, Royal Free Foundation Trust, 9th Floor, Royal Free Hospital, Pond Street, London NW3 2QG, UK.
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Ooi TC, Chan KM, Sharif R. Zinc L-carnosine suppresses inflammatory responses in lipopolysaccharide-induced RAW 264.7 murine macrophages cell line via activation of Nrf2/HO-1 signaling pathway. Immunopharmacol Immunotoxicol 2017; 39:259-267. [DOI: 10.1080/08923973.2017.1344987] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Theng Choon Ooi
- Biomedical Science Programme, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Kok Meng Chan
- Environmental Health and Industrial Safety Programme, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Razinah Sharif
- Programme of Nutritional Sciences, School of Healthcare Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Lee DU, Ko YS, Kim HJ, Chang KC. 13-Ethylberberine reduces HMGB1 release through AMPK activation in LPS-activated RAW264.7 cells and protects endotoxemic mice from organ damage. Biomed Pharmacother 2017; 86:48-56. [DOI: 10.1016/j.biopha.2016.11.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/14/2016] [Accepted: 11/24/2016] [Indexed: 01/06/2023] Open
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Chang KC, Ko YS, Kim HJ, Nam DY, Lee DU. 13-Methylberberine reduces HMGB1 release in LPS-activated RAW264.7 cells and increases the survival of septic mice through AMPK/P38 MAPK activation. Int Immunopharmacol 2016; 40:269-276. [PMID: 27632705 DOI: 10.1016/j.intimp.2016.08.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/18/2016] [Accepted: 08/19/2016] [Indexed: 01/03/2023]
Abstract
High mobility group box 1 (HMGB1), a late phase cytokine of sepsis, is viewed as a potential target for the treatment of sepsis. The authors considered that 13-methylberberine (13-MB) might reduce circulating HMGB1 levels and increase survival in a mouse model of sepsis by activating AMP-activated protein kinase (AMPK). Western blot analysis and vascular contraction testing were performed using RAW264.7 cells and rat thoracic aorta, respectively. The mechanisms responsible were investigated using various signal inhibitors and small interfering RNA techniques. 13-MB significantly reduced HMGB1 release by LPS-activated RAW264.7 cells, and this was prevented by silencing AMPK or p38, or by pretreating cells with p38 MAPKinase inhibitor, suggesting that the activations of p38 and AMPK were responsible for the observed reduction in HMGB1 release. As was expected, 13-MB increased the phosphorylations of p38 and AMPK. Interestingly, phosphorylations of p38 by 13-MB were inhibited by AMPKsiRNA, indicating that AMPK lies upstream of p38. Furthermore, 13-MB concentration-dependently inhibited IκB phosphorylation in LPS-activated RAW264.7 cells, and in aortic rings, co-treatment with 13-MB and LPS for 8h, in vitro, significantly restored the isometric contraction induced by phenylephrine. Importantly, 13-MB significantly increased the survival rate of LPS-induced endotoxemic mice. These results suggest 13-MB may be useful for treating diseases in which HMGB1 is viewed as a target.
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Affiliation(s)
- Ki Churl Chang
- Department of Pharmacology, School of Medicine Gyeongsang National University and Institute of Health Sciences, Jinju 660-751, Republic of Korea
| | - Young Shin Ko
- Department of Pharmacology, School of Medicine Gyeongsang National University and Institute of Health Sciences, Jinju 660-751, Republic of Korea
| | - Hye Jung Kim
- Department of Pharmacology, School of Medicine Gyeongsang National University and Institute of Health Sciences, Jinju 660-751, Republic of Korea
| | - Da-Yeong Nam
- Division of Bioscience, Dongguk University, Gyeongju 780-714, Republic of Korea
| | - Dong-Ung Lee
- Division of Bioscience, Dongguk University, Gyeongju 780-714, Republic of Korea.
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25
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Hwang YJ, Lee SJ, Park JY, Chun W, Nam SJ, Park JM, Park SC, Choi DH, Kang CD. Apocynin Suppresses Lipopolysaccharide-Induced Inflammatory Responses Through the Inhibition of MAP Kinase Signaling Pathway in RAW264.7 Cells. Drug Dev Res 2016; 77:271-7. [DOI: 10.1002/ddr.21321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 07/10/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Young-Jae Hwang
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
| | - Sung Joon Lee
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
| | - Jin-Young Park
- Department of Pharmacology, College of Medicine; Kangwon National University; Chuncheon Korea
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine; Kangwon National University; Chuncheon Korea
| | - Seung-Joo Nam
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
| | - Jin Myung Park
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
| | - Sung Chul Park
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
| | - Dae Hee Choi
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
| | - Chang Don Kang
- Department of Internal Medicine; Kangwon National University School of Medicine; Chuncheon Korea
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Tang Y, Zhao X, Antoine D, Xiao X, Wang H, Andersson U, Billiar TR, Tracey KJ, Lu B. Regulation of Posttranslational Modifications of HMGB1 During Immune Responses. Antioxid Redox Signal 2016; 24:620-34. [PMID: 26715031 PMCID: PMC5349223 DOI: 10.1089/ars.2015.6409] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
SIGNIFICANCE High-mobility group protein 1 (HMGB1) is an evolutionarily conserved and multifunctional protein. The biological function of HMGB1 depends on its cellular locations, binding partners, and redox states. Extracellular HMGB1 is a mediator of inflammation during infection or tissue injury. Immune cells actively release HMGB1 in response to infection, which in turn orchestrates both innate and adaptive immune responses. RECENT ADVANCES Hyperacetylation of HMGB1 within its nuclear localization sequences mobilizes HMGB1 from the nucleus to the cytoplasm and subsequently promotes HMGB1 release. The redox states of the cysteines in positions 23, 45, and 106 determine the biological activity of the extracellular HMGB1. CRITICAL ISSUES The full picture and the detailed molecular mechanisms of how cells regulate the posttranslational modifications and the redox status of HMGB1 during immune responses or under stress not only unravel the molecular mechanisms by which cells regulate the release and the biological function of HMGB1 but may also provide novel therapeutic targets to treat inflammatory diseases. FUTURE DIRECTIONS It is important to identify the signaling pathways that regulate the posttranslational modifications and the redox status of HMGB1 and find their roles in host immune responses and pathogenesis of diseases.
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Affiliation(s)
- Yiting Tang
- 1 Department of Hematology, The 3rd Xiangya Hospital, Central South University , Changsha, China .,2 State Key Laboratory of Medical Genetics, School of Biological Science and Technology, Central South University , Changsha, China .,3 Department of Physiology, Xiangya School of Medicine, Central South University , Changsha, China
| | - Xin Zhao
- 1 Department of Hematology, The 3rd Xiangya Hospital, Central South University , Changsha, China .,2 State Key Laboratory of Medical Genetics, School of Biological Science and Technology, Central South University , Changsha, China
| | - Daniel Antoine
- 4 Department of Molecular and Clinical Pharmacology, Medical Research Council Centre for Drug Safety Science, University of Liverpool , Liverpool, United Kingdom
| | - Xianzhong Xiao
- 5 Hunan Province Key Laboratory of Sepsis and Translational Medicine, Xiangya School of Medicine, Central South University , Changsha, China .,6 Department of Pathophysiology, Xiangya School of Medicine, Central South University , Changsha, China
| | - Haichao Wang
- 7 Department of Emergency Medicine, North Shore University Hospital , Manhasset, New York
| | - Ulf Andersson
- 8 Department of Women's and Children's Health, Karolinska Institutet , Stockholm, Sweden
| | - Timothy R Billiar
- 9 Department of Surgery, University of Pittsburgh Medical Center , Pittsburgh, Pennsylvania
| | - Kevin J Tracey
- 10 Center of Biomedical Science, Feinstein Institute for Medical Research , Manhasset, New York
| | - Ben Lu
- 1 Department of Hematology, The 3rd Xiangya Hospital, Central South University , Changsha, China .,2 State Key Laboratory of Medical Genetics, School of Biological Science and Technology, Central South University , Changsha, China .,5 Hunan Province Key Laboratory of Sepsis and Translational Medicine, Xiangya School of Medicine, Central South University , Changsha, China .,10 Center of Biomedical Science, Feinstein Institute for Medical Research , Manhasset, New York
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Yang X, Wang J, Dai J, Shao J, Ma J, Chen C, Ma S, He Q, Luo P, Yang B. Autophagy protects against dasatinib-induced hepatotoxicity via p38 signaling. Oncotarget 2016; 6:6203-17. [PMID: 25749037 PMCID: PMC4467432 DOI: 10.18632/oncotarget.3357] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 01/14/2015] [Indexed: 01/01/2023] Open
Abstract
Liver dysfunction is a common side effect associated with the treatment of dasatinib and its mechanism is poorly understood. Autophagy has been thought to be a potent survival or death factor for liver dysfunction, which may shed the light on a novel strategy for the intervention of hepatotoxicity caused by dasatinib. In this study, we show for the first time that autophagy is induced, which is consistent with the formation of liver damage. Autophagy inhibition exacerbated dasatinib-induced liver failure, suggesting that autophagy acted as a self-defense mechanism to promote survival. Oxidative stress has been shown to be an important stimulus for autophagy and hepatotoxicity. Interestingly, dasatinib increased the activity of p38, which is a critical modulator of the oxidative stress related to liver injury and autophagy. p38 silencing significantly blocked LC3-II induction and p62 reduction by dasatinib, which was accompanied by increased caspase-3 and PARP cleavage, indicating that autophagy alleviated dasatinib-induced hepatotoxicity via p38 signaling. Finally, the p38 agonist isoproterenol hydrochloride (ISO) alleviated dasatinib-induced liver failure by enhancing autophagy without affecting the anticancer activity of dasatinib. Thus, this study revealed that p38-activated autophagy promoted survival during liver injury, which may provide novel approaches for managing the clinical applications of dasatinib.
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Affiliation(s)
- Xiaochun Yang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jincheng Wang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jiabin Dai
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jinjin Shao
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jian Ma
- Center for Drug Safety Evaluation and Research of Zhejiang University, Hangzhou, China
| | - Chao Chen
- Center for Drug Safety Evaluation and Research of Zhejiang University, Hangzhou, China
| | - Shenglin Ma
- Nanjing Medical University, Affiliated Hangzhou Hospital, Hangzhou First People's Hospital, Hangzhou, China
| | - Qiaojun He
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Peihua Luo
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Bo Yang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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The Protective Role of Interleukin-33 in Myocardial Ischemia and Reperfusion Is Associated with Decreased HMGB1 Expression and Up-Regulation of the P38 MAPK Signaling Pathway. PLoS One 2015; 10:e0143064. [PMID: 26571038 PMCID: PMC4646496 DOI: 10.1371/journal.pone.0143064] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 10/30/2015] [Indexed: 11/19/2022] Open
Abstract
Interleukin-33 (IL-33) plays a protective role in myocardial ischemia and reperfusion (I/R) injury, but the underlying mechanism was not fully elucidated. The present study was designed to investigate whether IL-33 protects against myocardial I/R injury by regulating both P38 mitogen-activated-protein kinase (P38 MAPK), which is involved in one of the downstream signaling pathways of IL-33, and high mobility group box protein 1 (HMGB1), a late pro-inflammatory cytokine. Myocardial I/R injury increased the level of IL-33 and its induced receptor (sST) in myocardial tissue. Compared with the I/R group, the IL-33 group had significantly lower cardiac injury (lower serum creatine kinase (CK), lactate dehydrogenase (LDH), and cTnI levels and myocardial infarct size), a suppressed inflammatory response in myocardial tissue (lower expression of HMGB1, IL-6, TNF-α and INF-γ) and less myocardial apoptosis (much higher Bcl-2/Bax ratio and lower cleaved caspase-3 expression). Moreover, IL-33 activated the P38 MAPK signaling pathway (up-regulating P-P38 expression) in myocardial tissue, and SB230580 partially attenuated the anti-inflammatory and anti-apoptosis effects of IL-33. These findings indicated that IL-33 protects against myocardial I/R injury by inhibiting inflammatory responses and myocardial apoptosis, which may be associated with the HMGB1 and P38 MAPK signaling pathways.
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Wang J, Hu X, Jiang H. ERS-PERK signaling pathway-mediated Nrf2/ARE-HO-1 axis: A novel therapeutic target for attenuating myocardial ischemia and reperfusion injury. Int J Cardiol 2015; 203:779-80. [PMID: 26595781 DOI: 10.1016/j.ijcard.2015.11.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 11/04/2015] [Indexed: 01/28/2023]
Affiliation(s)
- Jichun Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China
| | - Xiaorong Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China
| | - Hong Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China.
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Kang JW, Kim SJ, Cho HI, Lee SM. DAMPs activating innate immune responses in sepsis. Ageing Res Rev 2015; 24:54-65. [PMID: 25816752 DOI: 10.1016/j.arr.2015.03.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 03/09/2015] [Accepted: 03/13/2015] [Indexed: 12/11/2022]
Abstract
Sepsis refers to the deleterious and non-resolving systemic inflammatory response of the host to microbial infection and is the leading cause of death in intensive care units. The pathogenesis of sepsis is highly complex. It is principally attributable to dysregulation of the innate immune system. Damage-associated molecular patterns (DAMPs) are actively secreted by innate immune cells and/or released passively by injured or damaged cells in response to infection or injury. In the present review, we highlight emerging evidence that supports the notion that extracellular DAMPs act as crucial proinflammatory danger signals. Furthermore, we discuss the potential of a wide array of DAMPs as therapeutic targets in sepsis.
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Affiliation(s)
- Jung-Woo Kang
- School of Pharmacy, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon, Gyeonggi-do, 440-746 South Korea
| | - So-Jin Kim
- School of Pharmacy, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon, Gyeonggi-do, 440-746 South Korea
| | - Hong-Ik Cho
- School of Pharmacy, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon, Gyeonggi-do, 440-746 South Korea
| | - Sun-Mee Lee
- School of Pharmacy, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon, Gyeonggi-do, 440-746 South Korea.
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Shie PH, Huang SS, Deng JS, Huang GJ. Spiranthes sinensis Suppresses Production of Pro-Inflammatory Mediators by Down-Regulating the NF-κB Signaling Pathway and Up-Regulating HO-1/Nrf2 Anti-Oxidant Protein. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015. [DOI: 10.1142/s0192415x15500561] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spiranthes sinensis is an east Asian wild orchid used in Chinese folk medicine. In this study, an ethyl acetate fraction from S. sinensis(SSE) was found to suppress the production of LPS-stimulated inflammatory mediators in RAW264.7 cells and BALB/c mice. SSE inhibited the production of pro-inflammatory mediators such as nitric oxide (NO), prostaglandin E2 (PGE2), tumo necrosis factor-α (TNF-α), IL-1β, and IL-6 in LPS-stimulated RAW264.7 cells. SSE also significantly suppressed LPS-stimulated protein levels of iNOS and mPGES-1 by blocking IκB phosphorylation, NF-κB nuclear translocation, and MAPKs phosphorylation. In addition, SSE treatment also enhanced protein levels of HO-1 and anti-oxidant enzymes (SOD-1, CAT, and GPx-1) through the nuclear translocation of Nrf2 in LPS-stimulated RAW264.7 cells. In vivo, we demonstrated that SSE attenuated the levels of pro-inflammatory mediators (NO, TNF-α, IL-1β, and IL-6), ALT, and AST in the serum of LPS-stimulated BALB/c mice. Western blotting revealed that SSE enhanced HO-1 expression in lung and liver tissue after LPS injection in mice. These results suggest that the anti-inflammatory properties of SSE involve the suppression of iNOS, mPGES-1, and inflammatory mediators by inducing the HO-1 pathway in LPS-stimulated RAW264.7 cells and BALB/c mice.
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Affiliation(s)
- Pei-Hsin Shie
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan
| | | | - Jeng-Shyan Deng
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, Taiwan
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Lee SE, Yang H, Son GW, Park HR, Jin YH, Park CS, Park YS. Crotonaldehyde-exposed macrophages induce heme oxygenase-1 expression as an adaptive mechanism. Mol Cell Toxicol 2015. [DOI: 10.1007/s13273-015-0015-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Peng XX, Zhang SH, Wang XL, Ye TJ, Li H, Yan XF, Wei L, Wu ZP, Hu J, Zou CP, Wang YH, Hu XD. Panax Notoginseng flower saponins (PNFS) inhibit LPS-stimulated NO overproduction and iNOS gene overexpression via the suppression of TLR4-mediated MAPK/NF-kappa B signaling pathways in RAW264.7 macrophages. Chin Med 2015; 10:15. [PMID: 26155304 PMCID: PMC4493833 DOI: 10.1186/s13020-015-0045-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 06/25/2015] [Indexed: 01/29/2023] Open
Abstract
Background Panax Notoginseng flower saponins (PNFS) are the main active component of Panax notoginseng (Burk) F. H. Chen flower bud (PNF) and possess significant anti-inflammatory efficacy. This study aims to explore the mechanisms underlying PNFS’ antiflammatory action in RAW264.7 macrophages. Methods A cell counting kit-8 assay was used to determine the viability of RAW264.7 macrophages. Anti-inflammation effects of PNFS in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages were measured based on the detection of nitric oxide (NO) overproduction (Griess method, DAF-FM DA fluorescence assay and NO2− scavenging assay), and interleukin (IL)-6 and tumor necrosis factor (TNF)-alpha gene overexpression (real-time PCR and ELISA). Inducible nitric oxide synthase (iNOS) gene overexpression was determined by real-time PCR and western blotting. iNOS enzyme activity was also assayed. The mechanisms underlying the suppression of iNOS gene overexpression by PNFS were explored using real-time PCR and western blotting to assess mRNA and protein levels of components of the Toll-like receptor 4 mitogen-activated protein kinase (MAPK), phosphatidylinositol 3-kinase (PI3K)/Akt, and nuclear factor-kappa B (NF-kappa B) signaling pathways. Results PNFS (50, 100, 200 μg/mL) significantly reduced LPS-induced overproduction of NO (P < 0.001, P < 0.001, P < 0.001) and IL-6 (P = 0.103, P < 0.001, P < 0.001), but did not affect TNF-alpha overproduction. PNFS (50, 100, 200 μg/mL) also markedly decreased LPS-activated iNOS (P < 0.001, P < 0.001, P < 0.001) and TLR4 gene overexpression (P = 0.858, P = 0.046, P = 0.005). Furthermore, treatment with PNFS (200 μg/mL) suppressed the phosphorylation of MAPKs including P38 (P = 0.001), c-Jun N-terminal kinase (JNK) (P = 0.036) and extracellular-signal regulated kinase (ERK) 1/2 (P = 0.021). PNFS (200 μg/mL) inhibited the activation of the NF-kappa B signaling pathway by preventing the phosphorylation of inhibitor of NF-kappa B alpha (I-kappa B alpha) (P = 0.004) and P65 (P = 0.023), but PNFS (200 μg/mL) could not activate the LPS-induced PI3K-Akt signaling pathway. Conclusions PNFS significantly down-regulated iNOS gene overexpression and thereby decreased NO overproduction via the inhibition of TLR4-mediated MAPK/NF-kappa B signaling pathways, but not the PI3K/Akt signaling pathway.
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Affiliation(s)
- Xiao-Xu Peng
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Shu-Hui Zhang
- Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437 People's Republic of China
| | - Xiao-Ling Wang
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Ting-Jie Ye
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Hua Li
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Xiao-Feng Yan
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Li Wei
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Zhong-Ping Wu
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Jing Hu
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Chun-Pu Zou
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - You-Hua Wang
- Hypertension Laboratory, Cardiovascular Department, Long Hua Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032 People's Republic of China
| | - Xu-Dong Hu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
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Liu C, Zhu C, Wang G, Xu R, Zhu Y. Higenamine regulates Nrf2-HO-1-Hmgb1 axis and attenuates intestinal ischemia-reperfusion injury in mice. Inflamm Res 2015; 64:395-403. [PMID: 25929435 DOI: 10.1007/s00011-015-0817-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 03/12/2015] [Accepted: 04/02/2015] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Intestinal ischemia and reperfusion (IR) syndrome is a life-threatening dilemma caused by diverse events. Higenamine (HG), an active ingredient of Aconiti Lateralis Radix Praeparata, has been traditionally used as a heart stimulant and anti-inflammatory agent in oriental countries. But the function of HG on intestine IR injury has never been investigated. MATERIALS AND METHODS Mice underwent a 2 cm midline laparotomy, and the superior mesenteric artery (SMA) was obstructed by micro-vascular clamp to induce intestinal ischemia. RESULTS In our current study, HG increases mouse intestinal epithelial (IEC-6) cell viability through induced heme oxygenase-1 (HO-1) production in vitro. In our in vivo murine intestinal IR injury model, the increased HO-1 protein level and activity, decreased intestinal injury score, Myeloperoxidase (MPO) activity, and inflammatory cytokine expression induced by HG were all abolished with additional treatment of HO-1 inhibitor zinc protoporphyrin IX (ZnPPIX). Furthermore, HG reduced high mobility group box-1 (Hmgb1) expression in IR injury-performed intestine which was inhibited by additional administration of ZnPPIX. And HG treatment significantly decreased HO-1 expression in nuclear factor erythroid 2-related factor (Nrf-2) SiRNA-transfected cells but not in control SiRNA-transfected cells. CONCLUSION Our study provides evidence HG regulates Nrf2-HO-1-Hmgb1 axis and attenuates intestinal IR injury in mice.
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Affiliation(s)
- Chao Liu
- Department of General Surgery, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, No.183, Yiling Road, Yichang, 443003, Hubei, China
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Lysosome and Cytoskeleton Pathways Are Robustly Enriched in the Blood of Septic Patients: A Meta-Analysis of Transcriptomic Data. Mediators Inflamm 2015; 2015:984825. [PMID: 26063982 PMCID: PMC4430672 DOI: 10.1155/2015/984825] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/27/2015] [Accepted: 04/01/2015] [Indexed: 12/12/2022] Open
Abstract
Background. Sepsis is a leading cause of mortality in intensive care units worldwide. A better understanding of the blood systems response to sepsis should expedite the identification of biomarkers for early diagnosis and therapeutic interventions. Methods. We analyzed microarray studies whose data is available from the GEO repository and which were performed on the whole blood of septic patients and normal controls. Results. We identified 6 cohorts consisting of 450 individuals (sepsis = 323, control = 127) providing genome-wide messenger RNA (mRNA) expression data. Through meta-analysis we found the “Lysosome” and “Cytoskeleton” pathways were upregulated in human sepsis patients relative to controls, in addition to previously known signaling pathways (including MAPK, TLR). The key regulatory genes in the “Lysosome” pathway include lysosomal acid hydrolases (e.g., protease cathepsin A, D) as well as the major (LAMP1, 2) and minor (SORT1, LAPTM4B) membrane proteins. In contrast, pathways related to “Ribosome”, “Spliceosome” and “Cell adhesion molecules” were found to be downregulated, along with known pathways for immune dysfunction. Overall, our study revealed distinct mRNA activation profiles and protein-protein interaction networks in blood of human sepsis. Conclusions. Our findings suggest that aberrant mRNA expression in the lysosome and cytoskeleton pathways may play a pivotal role in the molecular pathobiology of human sepsis.
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Yin W, Zhang X, Li Y. Protective effects of curcumin in APPswe transfected SH-SY5Y cells. Neural Regen Res 2015; 7:405-12. [PMID: 25774181 PMCID: PMC4350125 DOI: 10.3969/j.issn.1673-5374.2012.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2011] [Accepted: 12/22/2011] [Indexed: 12/21/2022] Open
Abstract
The APPswe plasmid was transfected into the neuroblastoma cell line SH-SY5Y to establish a cell model of Alzheimer's disease. Graded concentration and time course experiments demonstrate that curcumin significantly upregulates phosphatidylinositol 3-kinase (PI3K), Akt, nuclear factor E2-related factor-2 (Nrf2), heme oxygenase 1 and ferritin expression, and that it significantly downregulates heme oxygenase 2, reactive oxygen species and amyloid-beta 40/42 expression. These effects of curcumin on PI3K, Akt and Nrf2 were blocked by LY294002 (PI3k inhibitor) and NF-E2-related factor-2 siRNA. The results indicate that the cytoprotection conferred by curcumin on APPswe transfected SH-SY5Y cells is mediated by its ability to regulate the balance between heme oxygenase 1 and 2 via the PI3K/Akt/Nrf2 intracellular signaling pathway.
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Affiliation(s)
- Wenke Yin
- Department of Pathology, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Xiong Zhang
- Department of Pathology, Chongqing Medical University, Chongqing 400016, China ; Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
| | - Yu Li
- Department of Pathology, Chongqing Medical University, Chongqing 400016, China ; Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
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Alpha-Tomatine Exhibits Anti-inflammatory Activity in Lipopolysaccharide-Activated Macrophages. Inflammation 2015; 38:1769-76. [DOI: 10.1007/s10753-015-0154-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Protective effect of oroxylin A against lipopolysaccharide and/or D-galactosamine-induced acute liver injury in mice. J Surg Res 2015; 195:522-8. [PMID: 25818981 DOI: 10.1016/j.jss.2015.01.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 01/13/2015] [Accepted: 01/26/2015] [Indexed: 11/21/2022]
Abstract
BACKGROUND Oroxylin A, a natural flavonoid isolated from Scutellariae baicalensis, has been reported to possess a wide spectrum of pharmacologic activities. However, the effects of oroxylin A on liver injury are poor understood. The purpose of this study was to investigate the effects of oroxylin A on acute liver injury in mice induced by lipopolysaccharide and/or D-galactosamine (LPS and/or D-GalN). METHODS Mice acute liver injury model was induced by LPS (50 μg/kg) and/or GalN (800 mg/kg). Serum alanine aminotransferase, aspartate aminotransferase, and tumor necrosis factor-α levels, hepatic tissue histology, malondialdehyde content, and myeloperoxidase activity were analyzed. Meanwhile, nuclear factor kappa B (NF-κB), heme oxygenase-1 (HO-1), and nuclear factor erythroid2-related factor 2 (Nrf2) expression were detected by Western blotting. RESULTS The results showed that oroxylin A dose-dependently inhibited LPS and/or GalN-induced serum alanine aminotransferase, aspartate aminotransferase, and tumor necrosis factor-α levels. Hepatic malondialdehyde content and myeloperoxidase activity were also suppressed by oroxylin A. We also found that oroxylin A inhibited LPS and/or GalN-induced toll like receptor 4 (TLR4) expression and NF-κB activation. In addition, oroxylin A upregulated the expression of Nrf2 and HO-1 in a dose-dependent manner. CONCLUSIONS In conclusion, oroxylin A protected against LPS and/or GalN-induced liver injury through activating Nrf2 and inhibiting TLR4 signaling pathway.
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Kang R, Chen R, Zhang Q, Hou W, Wu S, Cao L, Huang J, Yu Y, Fan XG, Yan Z, Sun X, Wang H, Wang Q, Tsung A, Billiar TR, Zeh HJ, Lotze MT, Tang D. HMGB1 in health and disease. Mol Aspects Med 2014; 40:1-116. [PMID: 25010388 PMCID: PMC4254084 DOI: 10.1016/j.mam.2014.05.001] [Citation(s) in RCA: 683] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 05/05/2014] [Indexed: 12/22/2022]
Abstract
Complex genetic and physiological variations as well as environmental factors that drive emergence of chromosomal instability, development of unscheduled cell death, skewed differentiation, and altered metabolism are central to the pathogenesis of human diseases and disorders. Understanding the molecular bases for these processes is important for the development of new diagnostic biomarkers, and for identifying new therapeutic targets. In 1973, a group of non-histone nuclear proteins with high electrophoretic mobility was discovered and termed high-mobility group (HMG) proteins. The HMG proteins include three superfamilies termed HMGB, HMGN, and HMGA. High-mobility group box 1 (HMGB1), the most abundant and well-studied HMG protein, senses and coordinates the cellular stress response and plays a critical role not only inside of the cell as a DNA chaperone, chromosome guardian, autophagy sustainer, and protector from apoptotic cell death, but also outside the cell as the prototypic damage associated molecular pattern molecule (DAMP). This DAMP, in conjunction with other factors, thus has cytokine, chemokine, and growth factor activity, orchestrating the inflammatory and immune response. All of these characteristics make HMGB1 a critical molecular target in multiple human diseases including infectious diseases, ischemia, immune disorders, neurodegenerative diseases, metabolic disorders, and cancer. Indeed, a number of emergent strategies have been used to inhibit HMGB1 expression, release, and activity in vitro and in vivo. These include antibodies, peptide inhibitors, RNAi, anti-coagulants, endogenous hormones, various chemical compounds, HMGB1-receptor and signaling pathway inhibition, artificial DNAs, physical strategies including vagus nerve stimulation and other surgical approaches. Future work further investigating the details of HMGB1 localization, structure, post-translational modification, and identification of additional partners will undoubtedly uncover additional secrets regarding HMGB1's multiple functions.
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Affiliation(s)
- Rui Kang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.
| | - Ruochan Chen
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Qiuhong Zhang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Wen Hou
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Sha Wu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Lizhi Cao
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jin Huang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yan Yu
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xue-Gong Fan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Zhengwen Yan
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA; Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
| | - Xiaofang Sun
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Experimental Department of Institute of Gynecology and Obstetrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510510, China
| | - Haichao Wang
- Laboratory of Emergency Medicine, The Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
| | - Qingde Wang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Allan Tsung
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Herbert J Zeh
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Michael T Lotze
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Daolin Tang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.
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3,4,5-Trihydroxycinnamic acid increases heme-oxygenase-1 (HO-1) and decreases macrophage infiltration in LPS-induced septic kidney. Mol Cell Biochem 2014; 397:109-16. [DOI: 10.1007/s11010-014-2177-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 07/24/2014] [Indexed: 10/24/2022]
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Vo VA, Lee JW, Park JH, Kwon JH, Lee HJ, Kim SS, Kwon YS, Chun W. N-(p-Coumaryol)-Tryptamine Suppresses the Activation of JNK/c-Jun Signaling Pathway in LPS-Challenged RAW264.7 Cells. Biomol Ther (Seoul) 2014; 22:200-6. [PMID: 25009700 PMCID: PMC4060082 DOI: 10.4062/biomolther.2014.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 03/17/2014] [Accepted: 03/24/2014] [Indexed: 01/01/2023] Open
Abstract
N-(p-Coumaryol) tryptamine (CT), a phenolic amide, has been reported to exhibit anti-oxidant and anti-inflammatory activities. However, the underlying mechanism by which CT exerts its pharmacological properties has not been clearly demonstrated. The objective of this study is to elucidate the anti-inflammatory mechanism of CT in lipopolysaccharide (LPS)-challenged RAW264.7 macrophage cells. CT significantly inhibited LPS-induced extracellular secretion of pro-inflammatory mediators such as nitric oxide (NO) and PGE2, and protein expressions of iNOS and COX-2. In addition, CT significantly suppressed LPS-induced secretion of pro-inflammatory cytokines such as TNF-α and IL-1β. To elucidate the underlying anti-inflammatory mechanism of CT, involvement of MAPK and Akt signaling pathways was examined. CT significantly attenuated LPS-induced activation of JNK/c-Jun, but not ERK and p38, in a concentration-dependent manner. Interestingly, CT appeared to suppress LPS-induced Akt phosphorylation. However, JNK inhibition, but not Akt inhibition, resulted in the suppression of LPS-induced responses, suggesting that JNK/c-Jun signaling pathway significantly contributes to LPS-induced inflammatory responses and that LPS-induced Akt phosphorylation might be a compensatory response to a stress condition. Taken together, the present study clearly demonstrates CT exerts anti-inflammatory activity through the suppression of JNK/c-Jun signaling pathway in LPS-challenged RAW264.7 macrophage cells.
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Affiliation(s)
- Van Anh Vo
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Jae-Won Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Jun-Ho Park
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Jae-Hyun Kwon
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
- Department of Radiology, Dongguk University Ilsan Hospital, Ilsan 410-773, Republic of Korea
| | - Hee Jae Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Sung-Soo Kim
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Yong-Soo Kwon
- College of Pharmacy, Kangwon National University, Chuncheon 200-701
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
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Inhibition of sepsis-induced inflammatory response by β1-adrenergic antagonists. J Trauma Acute Care Surg 2014; 76:320-7; discussion 327-8. [PMID: 24458040 DOI: 10.1097/ta.0000000000000113] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Although previous studies have described potential benefits of nonselective β-adrenergic antagonist therapy in sepsis, there is a paucity of data on the use of β1-selective antagonists (B1AA). The purposes of this study were to describe the effects of B1AA on survival in septic animals and to explore for molecular mechanisms of potential treatment benefit. METHODS C57BL/6 male mice received intraperitoneal injection of lipopolysaccharide. Continuous infusion of a B1AA (esmolol) or an equal volume of saline (control) was initiated at 4 hours after injection. Kaplan-Meier survival analysis at 120 hours was used to explore for mortality differences. A subgroup of animals was sacrificed for microarray expression analysis. Top candidate genes were validated in vitro and in silico. Expression of our candidate genes in a human microarray database (GSE28750) was explored. RESULTS B1AA infusion resulted in increased survival (p = 0.001) at 120 hours. Mean survival difference was 23.6 hours (p = 0.002). Hazard ratio for mortality with B1AA is 0.43 (95% confidence interval, 0.26-0.72). Immunologic disease (p = 0.0003-0.036) and cell death/survival (p = 0.0001-0.042) were significantly associated with improved survival in septic mice treated with B1AA. Further analysis of the gene structure revealed that eight genes shared common promoter activating sequence for NFKB and/or BRCA1 motifs. Analysis of a human sepsis database identified the up-regulation of CAMP (p = 0.032) and TNFSF10 (p = 0.001) genes in septic patients compared with healthy controls. CONCLUSION Continuous infusion of a B1AA initiated after septic insult improves survival at 5 days in a murine model. Benefits may be caused by modulation of gene expression in immunologic pathways leading to an increase in CAMP and TNFSF10 expression. This observed effect may be explained by the activation of NFKB and BRCA1 genes involved in immune response and cell repair pathways. Our findings support further investigation of the use of B1AA in the treatment of sepsis.
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Yang CJ, Chen YC, Tsai YJ, Huang MS, Wang CC. Toona sinensis leaf aqueous extract displays activity against sepsis in both in vitro and in vivo models. Kaohsiung J Med Sci 2014; 30:279-85. [PMID: 24835347 DOI: 10.1016/j.kjms.2014.02.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/19/2013] [Accepted: 01/07/2014] [Indexed: 12/26/2022] Open
Abstract
Toona sinensis (TS) leaves are used as a vegetable and in traditional Chinese medicine. However, in vivo experiments regarding the anti-inflammatory function of TS leaves have not previously been conducted. The aim of this study was to investigate the potential role of TS leaf extract (TSL) in the prevention of sepsis-induced lung injury in vivo and on macrophage activation in vitro. The results showed that oral gavage pretreatment with TSL in rats for 30 days improved the survival of cecal ligation and puncture-induced sepsis, potentially by attenuating sepsis-induced histological lung damage rather than inflammatory cell infiltration. Furthermore, we demonstrated that pretreatment with TSL attenuated the lipopolysaccharide (LPS)-induced expression of inducible nitric oxide synthase, thereby inhibiting nitric oxide production and release in murine macrophage-like RAW 264.7 cells. Interestingly, TSL did not affect the LPS-induced release of other cytokines (e.g., tumor necrosis factor α and interleukin 1β) but increased LPS-induced heme-oxygenase-1 expression. In conclusion, the study provides preliminary data for TSL on cecal ligation and puncture-induced sepsis. The beneficial impact of TSL needs extensive study to get solid evidence.
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Affiliation(s)
- Chih-Jen Yang
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yung-Chia Chen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yee-Jean Tsai
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Shyan Huang
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chao-Chuan Wang
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Wang J, Hu X, Fu W, Xie J, Zhou X, Jiang H. Isoproterenol‑mediated heme oxygenase‑1 induction inhibits high mobility group box 1 protein release and protects against rat myocardial ischemia/reperfusion injury in vivo. Mol Med Rep 2014; 9:1863-8. [PMID: 24604346 DOI: 10.3892/mmr.2014.2026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Accepted: 01/20/2014] [Indexed: 11/06/2022] Open
Abstract
Isoproterenol (ISO) has been reported to inhibit high mobility group box 1 (HMGB1) protein release via heme oxygenase-1 (HO-1) induction in lipopolysaccharide (LPS)-activated RAW 264.7 cells and increase the survival rate of cecal ligation and puncture (CLP)-induced septic mice. Therefore, it was examined whether ISO-mediated HO-1 induction inhibits HMGB1 release in cardiac myocytes and attenuates myocardial ischemia/reperfusion (I/R) injury in rats. Anesthetized male rats were pretreated with ISO [intraperitoneal (i.p.) injection of 10 mg/kg] prior to ischemia in the absence and/or presence of zinc protoporphyrin IX (ZnPPIX, i.p., 10 mg/kg), which is an inhibitor of HO-1, and then subjected to ischemia for 30 min followed by reperfusion for 24 h. The myocardial I/R injury and oxidative stress were assessed. In addition, the HO-1 protein and HMGB1 expression were measured by western blot analysis. ISO significantly attenuated the myocardial I/R injury, reduced oxidative stress, and induced HO-1 and reduced HMGB1 release. However, all these effects caused by ISO were significantly reversed in the presence of ZnPPIX. These results suggested that ISO has a pivotal role in the protective effects on myocardial I/R injury. This protection mechanism is possibly due to the inhibition of HMGB1 release via the induction of HO-1.
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Affiliation(s)
- Jichun Wang
- Department of Cardiology of Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaorong Hu
- Department of Cardiology of Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wenwen Fu
- Department of Cardiology of Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jing Xie
- Department of Cardiology of Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiaoya Zhou
- Department of Cardiology of Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hong Jiang
- Department of Cardiology of Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Vo VA, Lee JW, Shin SY, Kwon JH, Lee HJ, Kim SS, Kwon YS, Chun W. Methyl p-Hydroxycinnamate Suppresses Lipopolysaccharide-Induced Inflammatory Responses through Akt Phosphorylation in RAW264.7 Cells. Biomol Ther (Seoul) 2014; 22:10-6. [PMID: 24596616 PMCID: PMC3936424 DOI: 10.4062/biomolther.2013.095] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 12/17/2013] [Accepted: 12/20/2013] [Indexed: 12/02/2022] Open
Abstract
Derivatives of caffeic acid have been reported to possess diverse pharmacological properties such as anti-inflammatory, anti-tumor, and neuroprotective effects. However, the biological activity of methyl p-hydroxycinnamate, an ester derivative of caffeic acid, has not been clearly demonstrated. This study aimed to elucidate the anti-inflammatory mechanism of methyl p-hydroxycinnamate in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage cells. Methyl p-hydroxycinnamate significantly inhibited LPS-induced excessive production of pro-inflammatory mediators such as nitric oxide (NO) and PGE2 and the protein expression of iNOS and COX-2. Methyl p-hydroxycinnamate also suppressed LPS-induced overproduction of pro-inflammatory cytokines such as IL-1β and TNF-α. In addition, methyl p-hydroxycinnamate significantly suppressed LPS-induced degradation of IκB, which retains NF-κB in the cytoplasm, consequently inhibiting the transcription of pro-inflammatory genes by NF-κB in the nucleus. Methyl p-hydroxycinnamate exhibited significantly increased Akt phosphorylation in a concentration-dependent manner. Furthermore, inhibition of Akt signaling pathway with wortmaninn abolished methyl p-hydroxycinnamate-induced Akt phosphorylation. Taken together, the present study clearly demonstrates that methyl p-hydroxycinnamate exhibits anti-inflammatory activity through the activation of Akt signaling pathway in LPS-stimulated RAW264.7 macrophage cells.
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Affiliation(s)
- Van Anh Vo
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Jae-Won Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Seung-Yeon Shin
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Jae-Hyun Kwon
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701 ; Department of Radiology, Dongguk University Ilsan Hospital, Ilsan 410-773, Republic of Korea
| | - Hee Jae Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Sung-Soo Kim
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
| | - Yong-Soo Kwon
- College of Pharmacy, Kangwon National University, Chuncheon 200-701
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701
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Vo VA, Lee JW, Kim JY, Park JH, Lee HJ, Kim SS, Kwon YS, Chun W. Phosphorylation of Akt Mediates Anti-Inflammatory Activity of 1-p-Coumaroyl β-D-Glucoside Against Lipopolysaccharide-Induced Inflammation in RAW264.7 Cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2014; 18:79-86. [PMID: 24634601 PMCID: PMC3951828 DOI: 10.4196/kjpp.2014.18.1.79] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 12/17/2013] [Accepted: 12/31/2013] [Indexed: 11/15/2022]
Abstract
Hydroxycinnamic acids have been reported to possess numerous pharmacological activities such as antioxidant, anti-inflammatory, and anti-tumor properties. However, the biological activity of 1-p-coumaroyl β-D-glucoside (CG), a glucose ester derivative of p-coumaric acid, has not been clearly examined. The objective of this study is to elucidate the anti-inflammatory action of CG in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage cells. In the present study, CG significantly suppressed LPS-induced excessive production of pro-inflammatory mediators such as nitric oxide (NO) and PGE2 and the protein expression of iNOS and COX-2. CG also inhibited LPS-induced secretion of pro-inflammatory cytokines, IL-1β and TNF-α. In addition, CG significantly suppressed LPS-induced degradation of IκB. To elucidate the underlying mechanism by which CG exerts its anti-inflammatory action, involvement of various signaling pathways were examined. CG exhibited significantly increased Akt phosphorylation in a concentration-dependent manner, although MAPKs such as Erk, JNK, and p38 appeared not to be involved. Furthermore, inhibition of Akt/PI3K signaling pathway with wortmannin significantly, albeit not completely, abolished CG-induced Akt phosphorylation and anti-inflammatory actions. Taken together, the present study demonstrates that Akt signaling pathway might play a major role in CG-mediated anti-inflammatory activity in LPS-stimulated RAW264.7 macrophage cells.
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Affiliation(s)
- Van Anh Vo
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
| | - Jae-Won Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
| | - Ji-Young Kim
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
| | - Jun-Ho Park
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
| | - Hee Jae Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
| | - Sung-Soo Kim
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
| | - Yong-Soo Kwon
- College of Pharmacy, Kangwon National University, Chuncheon 200-701, Korea
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 200-701, Korea
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3,4,5-Trihydroxycinnamic acid inhibits lipopolysaccharide (LPS)-induced inflammation by Nrf2 activation in vitro and improves survival of mice in LPS-induced endotoxemia model in vivo. Mol Cell Biochem 2014; 390:143-53. [DOI: 10.1007/s11010-014-1965-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 01/14/2014] [Indexed: 10/25/2022]
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Wang J, Hu X, Jiang H. Nrf-2-HO-1-HMGB1 axis: an important therapeutic approach for protection against myocardial ischemia and reperfusion injury. Int J Cardiol 2014; 172:223-4. [PMID: 24456890 DOI: 10.1016/j.ijcard.2013.12.273] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Accepted: 12/29/2013] [Indexed: 11/15/2022]
Affiliation(s)
- Jichun Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China
| | - Xiaorong Hu
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China
| | - H Jiang
- Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Jiefang Road 238, Wuchang, 430060 Wuhan, PR China.
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Chen HG, Xie KL, Han HZ, Wang WN, Liu DQ, Wang GL, Yu YH. Heme oxygenase-1 mediates the anti-inflammatory effect of molecular hydrogen in LPS-stimulated RAW 264.7 macrophages. Int J Surg 2013; 11:1060-6. [DOI: 10.1016/j.ijsu.2013.10.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/17/2013] [Accepted: 10/12/2013] [Indexed: 10/26/2022]
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50
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Lee JW, Choi YJ, Park JH, Sim JY, Kwon YS, Lee HJ, Kim SS, Chun W. 3,4,5-Trihydroxycinnamic Acid Inhibits Lipopolysaccharide-Induced Inflammatory Response through the Activation of Nrf2 Pathway in BV2 Microglial Cells. Biomol Ther (Seoul) 2013; 21:60-5. [PMID: 24009860 PMCID: PMC3762302 DOI: 10.4062/biomolther.2012.091] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 01/03/2013] [Accepted: 01/04/2013] [Indexed: 11/05/2022] Open
Abstract
3,4,5-Trihydroxycinnamic acid (THC) is a derivative of hydroxycinnamic acids, which have been reported to possess a variety of biological properties such as anti-inflammatory, anti-tumor, and neuroprotective activities. However, biological activity of THC has not been extensively examined. Recently, we reported that THC possesses anti-inflammatory activity in LPS-stimulated BV2 microglial cells. However, its precise mechanism by which THC exerts anti-inflammatory action has not been clearly identified. Therefore, the present study was carried out to understand the anti-inflammatory mechanism of THC in BV2 microglial cells. THC effectively suppressed the LPS-induced induction of pro-inflammatory mediators such as NO, TNF-α, and IL-1β. THC also suppressed expression of MCP-1, which plays a key role in the migration of activated microglia. To understand the underlying mechanism by which THC exerts these anti-inflammatory properties, involvement of Nrf2, which is a cytoprotective transcription factor, was examined. THC resulted in increased phosphorylation of Nrf2 with consequent expression of HO-1 in a concentration-dependent manner. THC-induced phosphorylation of Nrf2 was blocked with SB203580, a p38 MAPK inhibitor, indicating that p38 MAPK is the responsible kinase for the phosphorylation of Nrf2. Taken together, the present study for the first time demonstrates that THC exerts anti-inflammatory properties through the activation of Nrf2 in BV2 microglial cells, suggesting that THC might be a valuable therapeutic adjuvant for the treatment of inflammation-related disorders in the CNS.
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Affiliation(s)
- Jae-Won Lee
- Department of Pharmacology, College of Medicine, Republic of Korea
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