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Salih E, Mgbeahuruike EE, Prévost-Monteiro S, Sipari N, Väre H, Novak B, Julkunen-Tiitto R, Fyhrqvist P. Polyphenols and Phenolic Glucosides in Antibacterial Twig Extracts of Naturally Occurring Salix myrsinifolia (Salisb.), S. phylicifolia (L.) and S. starkeana (Willd.) and the Cultivated Hybrid S. x pendulina (Wender.). Pharmaceutics 2024; 16:916. [PMID: 39065613 PMCID: PMC11280161 DOI: 10.3390/pharmaceutics16070916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/28/2024] [Accepted: 07/01/2024] [Indexed: 07/28/2024] Open
Abstract
(1) Background: Salix species occurring in Finland have not been well studied for their antimicrobial potential, despite their frequent use for lung and stomach problems in traditional medicine. Thus, twig extracts of three species of Salix that are found naturally in Finland and one cultivated species were screened for their antimicrobial properties against human pathogenic bacteria. S. starkeana and S. x pendulina were screened for antibacterial effects for the first time. (2) Methods: An agar diffusion and a microplate method were used for the screenings. Time-kill effects were measured using a plate-count and a microplate method. A DPPH-method using a qualitative TLC-analysis was used to detect antioxidant compounds in antimicrobial extracts. Metabolites from a S. myrsinifolia extract showing good antibacterial effects were identified using UPLC/QTOF-MS. (3) Results: A methanol extract of S. starkeana was particularly active against B. cereus (MIC 625 µg/mL), and a methanol extract of S. myrsinifolia showed good activity against S. aureus and B. cereus (MIC 1250 µg/mL) and showed bactericidal effects during a 24 h incubation of B. cereus. Moreover, a decoction of S. myrsinifolia resulted in good growth inhibition against P. aeruginosa. Our UPLC/QTOF-MS results indicated that proanthocyanidins (PAs), and especially the dimer procyanidin B1 (m/z 577) and other procyanidin derivatives, including highly polymerized proanthocyanidins, were abundant in S. myrsinifolia methanol extracts. Procyanidin B1 and its monomer catechin, as well as taxifolin and p-hydroxycinnamic acid, all present in S. myrsinifolia twigs, effectively inhibited B. cereus (MIC 250 µg/mL). (4) Conclusions: This study indicates that Finnish Salix species contain an abundance of antibacterial condensed tannins, phenolic acids and other polyphenols that deserve further research for the antibacterial mechanisms of action.
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Affiliation(s)
- Enass Salih
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00100 Helsinki, Finland; (E.E.M.); (P.F.)
| | - Eunice Ego Mgbeahuruike
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00100 Helsinki, Finland; (E.E.M.); (P.F.)
| | | | - Nina Sipari
- Viikki Metabolomics Unit, Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, 00100 Helsinki, Finland;
| | - Henry Väre
- Botanical Museum, Finnish Museum of Natural History, University of Helsinki, 00100 Helsinki, Finland;
| | - Brigita Novak
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia;
| | - Riitta Julkunen-Tiitto
- Department of Environmental and Biological Sciences, Faculty of Science and Forestry, University of Eastern Finland, 80100 Joensuu, Finland;
| | - Pia Fyhrqvist
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, 00100 Helsinki, Finland; (E.E.M.); (P.F.)
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Han X, Kan H, Shi J, Hou S, Yao X. Isoflurane Preconditioning Alleviates Hypoxia/Reoxygenation-Induced Cardiomyocyte Injury by Inhibiting miR-195-3p Expression. Cardiovasc Toxicol 2024; 24:637-645. [PMID: 38720121 DOI: 10.1007/s12012-024-09869-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 04/26/2024] [Indexed: 06/28/2024]
Abstract
To investigate the role of microRNA-195-3p (miR-195-3p) in hypoxia/reoxygenation (H/R)-induced cardiomyocyte injury. AC16 human cardiomyocyte cells were cultured and pretreated with different concentrations of isoflurane (ISO) (1%, 2%, and 3%), followed by 6 h each of hypoxia and reoxygenation to construct H/R cell models. The optimum ISO concentration was assessed based on the cell viability. miR-195-3p expression was regulated by in vitro cell transfection. Cell viability was determined by MTT assay, and apoptosis was evaluated by flow cytometry. The levels of myocardial injury and inflammation were determined by enzyme-linked immunosorbent assay. Compared with the control group, the cell viability of the H/R group had significantly decreased and that of ISO pretreatment had increased in a dose-dependent manner. Therefore, we selected a 2% ISO concentration for pretreatment. MiR-195-3p expression had significantly increased in the H/R group and decreased after 2% ISO pretreatment. Additionally, the number of apoptotic cells and the levels of lactate dehydrogenase, creatine kinase-myoglobin binding, cardiac troponin I, interleukin (IL)-1β, IL-6, and tumor necrosis factor-α had increased significantly. ISO preconditioning inhibited H/R-induced AC16 cell damage, whereas miR-195-3p overexpression reversed the protective effects of ISO on cardiomyocytes. The expression of phosphatase and tensin homolog deleted on chromosome 10 (PTEN) was reduced in the H/R-induced AC16 cells, and PTEN is a downstream target gene of miR-195-3p. Preconditioning with 2% ISO plays a protective role in H/R-induced AC16 cell damage by inhibiting miR-195-3p expression.
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Affiliation(s)
- Xiaofei Han
- Department of Anesthesiology, Beijing Stomatological Hospital Affiliated to Capital Medical University, Beijing, 100050, China
| | - Hongyuan Kan
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, 250014, China
| | - Jingyi Shi
- Department of Anesthesiology, Xingtai People's Hospital, No. 818, Xiangdu North Road, Xiangdu District, Xingtai, 054000, China
| | - Shaoke Hou
- Department of Anesthesiology, Xingtai People's Hospital, No. 818, Xiangdu North Road, Xiangdu District, Xingtai, 054000, China
| | - Xinyu Yao
- Department of Anesthesiology, Xingtai People's Hospital, No. 818, Xiangdu North Road, Xiangdu District, Xingtai, 054000, China.
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Gan R, Liu H, Wu S, Huang R, Tang Z, Zhang N, Hu L. Curcumin Alleviates Arsenic Trioxide-Induced Inflammation and Pyroptosis via the NF-κB/NLRP3 Signaling Pathway in the Hypothalamus of Ducks. Biol Trace Elem Res 2023; 201:2503-2511. [PMID: 35737258 DOI: 10.1007/s12011-022-03321-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/07/2022] [Indexed: 11/02/2022]
Abstract
Arsenic (As) as a neurotoxic environmental pollutant has attracted extensive attention. Curcumin (Cur) is a natural antioxidant that shows an excellent protective effect against arsenic trioxide (ATO)-induced toxicity in many animal organs. However, the mechanism of Cur against ATO-induced hypothalamic toxicity in ducks has not yet been fully elucidated. Here, ducks were treated with ATO and/or Cur during 28 days; the results showed that ATO exposure induced growth retardation, messy feathers, and abnormal posture in ducks. Moreover, ATO caused neuron vacuolar degeneration and disintegration in the hypothalamus of ducks. Simultaneously, ATO induced blood-brain barrier damage, downregulated the expression of ZO-1, Occludin, and mediated NF-κB activation, resulting in an increase in inflammatory factors (TLR-4, NF-κB, TNF-α, IL-2, and IL-6). Furthermore, ATO increased the production of pyroptosis-related factors (Caspase-1, IL-18, IL-1), exacerbating the inflammatory damage through NLRP3-mediated inflammasome activation. Cur, on the other hand, exerted excellent inhibitory effects on inflammation and pyroptosis. In summary, our study revealed that ATO triggered inflammation and pyroptosis by modulating NF-κB/NLRP3 signaling pathways in the hypothalamus of ducks, and Cur can alleviate inflammation and pyroptosis caused by ATO. Therefore, as a plant extract, Cur has the potential to prevent and cure ATO-induced hypothalamus toxicity.
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Affiliation(s)
- Rao Gan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Haiyan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Shaofeng Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Ning Zhang
- Guangxi Nongken Yongxin Animal, Husbandry Group Co., Ltd, Nanning, 530022, Guangxi, China.
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
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Panda SK, Kumar D, Jena GR, Patra RC, Panda SK, Sethy K, Mishra SK, Swain BK, Naik PK, Beura CK, Panda B. Hepatorenal Toxicity of Inorganic Arsenic in White Pekin Ducks and Its Amelioration by Using Ginger. Biol Trace Elem Res 2023; 201:2471-2490. [PMID: 35723853 DOI: 10.1007/s12011-022-03317-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 06/06/2022] [Indexed: 11/29/2022]
Abstract
The toxic metalloid arsenic is known to cause liver and kidney injury in many humans and animals. The goal of this paper was to exemplify the antagonism of ginger against arsenic (As)-induced hepato-renal toxicity. In addition, the pathways Nrf2/Keap1 and NF/κB were studied to reveal the molecular mechanism of the stress. One hundred twenty 7-day-old White Pekin ducks were randomly allocated into five groups, having 24 birds in each. Each group contained three replicates having 8 birds in each replicate and maintained for 90 days. The groups were as follows: T-1 [control-basal diet with normal water], T-2 [T1 + As at 28 ppm/L of water], T-3 [T2 + ginger powder at 100 mg/kg feed], T-4 [T2 + ginger powder at 300 mg/kg feed], and T-5 [T2 + ginger powder at 1 g/kg feed]. It was observed that there was a significant increase in oxidative parameters whereas a significant decrease in antioxidant parameters in hepato-renal tissues in T-2. The exposure to As not only decreased the mRNA expression of antioxidant parameters like Nrf2, SOD-1, CAT, GPX, and HO-1and anti-inflammatory markers like IL-4 and IL-10 but also increased the m-RNA expression of NF-κB, Keap-1 and pro-inflammatory markers like IL-2, Il-6, IL-18, IL-1β, and TNF-α. There was also an accumulation of As in hepatic and renal tissue, confirmed by residual analysis of these tissues. By correlating the above parameters, As at 28 ppm showed significant toxic effects, and ginger powder at 1 g/kg feed effectively counteracted the toxic effects of As in ducks.
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Affiliation(s)
- Santosh Kumar Panda
- Department of Veterinary Clinical Medicine, College of Veterinary Science and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, India.
| | - Dhirendra Kumar
- Regional centre ICAR-Directorate of Poultry Research, Bhubaneswar, 751003, India
| | - Geeta Rani Jena
- Department of Veterinary Clinical Medicine, College of Veterinary Science and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - Ramesh Chandra Patra
- Department of Veterinary Clinical Medicine, College of Veterinary Science and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - Susen Kumar Panda
- Department of Veterinary Pathology, College of Veterinary Science and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - Kamdev Sethy
- Department of Animal Nutrition, College of Veterinary Science and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, India
| | - Surya Kant Mishra
- Regional centre ICAR-Directorate of Poultry Research, Bhubaneswar, 751003, India
| | - Bijaya Kumar Swain
- Regional centre ICAR-Directorate of Poultry Research, Bhubaneswar, 751003, India
| | - Prafulla Kumar Naik
- Regional centre ICAR-Directorate of Poultry Research, Bhubaneswar, 751003, India
| | - Chandra Kant Beura
- Regional centre ICAR-Directorate of Poultry Research, Bhubaneswar, 751003, India
| | - Bhagyalaxmi Panda
- Department of Plant Breeding and Genetics, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, 751003, India
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The Effect of Necrosis Inhibitor on Dextran Sulfate Sodium Induced Chronic Colitis Model in Mice. Pharmaceutics 2023; 15:pharmaceutics15010222. [PMID: 36678851 PMCID: PMC9862178 DOI: 10.3390/pharmaceutics15010222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Uncontrolled chronic inflammation and necrosis is characteristic of inflammatory bowel disease (IBD). This study aimed to investigate the effect of necrosis inhibitor (NI, NecroX-7) on a dextran sulfate sodium (DSS) induced chronic colitis model of mice. DSS was administered on days 1-5, and the NI was administered intraperitoneally (3 mg/kg, 30 mg/kg) on days 1, 3, and 5 as well as every other day during the first five days of a three-week cycle. Three cycles of administration were performed. Colitis was evaluated based on the disease activity index (DAI) score, colon length, and histological score. Reverse transcription polymerase chain reaction testing, the Western blot assay, and immunohistochemical staining were performed to determine inflammatory cytokine levels. The NI reduced body weight change and the DAI score. Colon length and the histological score were longer and lower in the NI-treated groups, respectively. The NI decreased the expression of pro-inflammatory cytokines, particularly in tumor necrosis factor alpha (TNF-α) and phosphorylated nuclear factor kappa B (p-NF-κB). Immunohistochemical staining revealed decreased inducible nitric oxide synthase (iNOS) and high mobility group box 1 (HMGB1) levels. Overall, the NI improved DSS induced chronic colitis by attenuating the mRNA expression of pro-inflammatory cytokines such as TNF-α. Therefore, NI use is a potential, novel treatment approach for IBD.
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Burgos C, Alvarenga N, Sotelo PH, Langjahr P. Anti-inflammatory activity of Baccharis notosergila against lipopolysaccharide (LPS)-induced inflammation and identification of active fractions and their chemical constituents. Eur J Integr Med 2022. [DOI: 10.1016/j.eujim.2022.102208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kim HJ, Lee DE, Park EC, Ra MJ, Jung SM, Yu JN, Um SH, Kim KH. Anti-Adipogenic Effects of Salicortin from the Twigs of Weeping Willow (Salix pseudolasiogyne) in 3T3-L1 Cells. Molecules 2022; 27:molecules27206954. [PMID: 36296558 PMCID: PMC9609119 DOI: 10.3390/molecules27206954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Salix pseudolasiogyne (Salicaceae), the “weeping willow,” has been used in traditional Korean medicine to treat pain and fever due to its high concentrations of salicylic acid and salicin. The present study investigated bioactive compounds from S. pseudolasiogyne twigs to discover bioactive natural products. Phytochemical investigation of the ethanol (EtOH) extract of S. pseudolasiogyne twigs followed by liquid chromatography–mass spectrometry (LC/MS)-based analysis led to the isolation of two salicin derivatives, salicortinol and salicortin, the structures of which were determined by interpretation of their NMR spectra and data from the LC/MS analysis. To the best of our knowledge, this is the first report of salicortinol isolated from S. pseudolasiogyne. The isolated compounds were evaluated for their anti-adipogenic effects in 3T3-L1 cells. Both salicortinol and salicortin were found to significantly inhibit adipocyte differentiation in 3T3-L1 cells. In particular, salicortin exhibited a strong inhibitory effect on lipid accumulation. Furthermore, salicortin inhibited the expression of lipogenic and adipogenic transcription factors, including FASN, FABP4, C/EBPα, C/EBPβ, and PPARγ, without inducing cytotoxicity. These results suggest that salicortin could be a potential therapeutic compound for the prevention or treatment of metabolic disorders such as obesity.
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Affiliation(s)
- Hee Jung Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon 16419, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Samsung Medical Center, Sungkyunkwan University, Seoul 06351, Korea
| | - Da Eun Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea
| | - Eon Chung Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea
| | - Moon-Jin Ra
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Korea
| | - Sang-Mi Jung
- Hongcheon Institute of Medicinal Herb, Hongcheon-gun 25142, Korea
| | - Jeong-Nam Yu
- Nakdonggang National Institute of Biological Resources, Sangju 37242, Korea
| | - Sung Hee Um
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon 16419, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Samsung Medical Center, Sungkyunkwan University, Seoul 06351, Korea
- Biomedical Institute Convergence, Sungkyunkwan University, Suwon 16419, Korea
- Correspondence: (S.H.U.); (K.H.K.); Tel.: +82-31-299-6123 (S.H.U.); +82-31-290-7700 (K.H.K.)
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea
- Correspondence: (S.H.U.); (K.H.K.); Tel.: +82-31-299-6123 (S.H.U.); +82-31-290-7700 (K.H.K.)
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Kim BS, Shin M, Kim KW, Ha KT, Bae SJ. NRF2 activation by 2-methoxycinnamaldehyde attenuates inflammatory responses in macrophages via enhancing autophagy flux. BMB Rep 2022. [PMID: 35725014 PMCID: PMC9442350 DOI: 10.5483/bmbrep.2022.55.8.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Bo-Sung Kim
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Korea
- Korean Medical Research Center for Healthy Aging, Pusan National University, Yangsan 50612, Korea
| | - Minwook Shin
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Kyu-Won Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Korea
| | - Ki-Tae Ha
- Department of Korean Medical Science, School of Korean Medicine, Pusan National University, Yangsan 50612, Korea
- Korean Medical Research Center for Healthy Aging, Pusan National University, Yangsan 50612, Korea
| | - Sung-Jin Bae
- Department of Molecular Biology and Immunology, Kosin University College of Medicine, Busan 49267, Korea
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Levilactobacillus brevis KU15151 Inhibits Staphylococcus aureus Lipoteichoic Acid-Induced Inflammation in RAW 264.7 Macrophages. Probiotics Antimicrob Proteins 2022; 14:767-777. [PMID: 35554865 DOI: 10.1007/s12602-022-09949-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2022] [Indexed: 10/18/2022]
Abstract
Inflammation is a host defense response to harmful agents, such as pathogenic invasion, and is necessary for health. Excessive inflammation may result in the development of inflammatory disorders. Levilactobacillus brevis KU15151 has been reported to exhibit probiotic characteristics and antioxidant activities, but the effect of this strain on inflammatory responses has not been determined. The present study aimed to investigate the anti-inflammatory potential of L. brevis KU15151 in Staphylococcus aureus lipoteichoic acid (aLTA)-induced RAW264.7 macrophages. Treatment with L. brevis KU15151 reduced the production of nitric oxide and prostaglandin E2 by suppressing the expression of inducible nitric oxide synthase and cyclooxygenase-2. Additionally, the production of proinflammatory cytokines including tumor necrosis factor-α, interleukin (IL)-6, and IL-1β, decreased after treatment with L. brevis KU15151 in aLTA-stimulated RAW 264.7 cells. Furthermore, this strain alleviated the activation of nuclear factor-κB and mitogen-activated protein kinase signaling pathways. Moreover, the generation of reactive oxygen species was downregulated by treatment with L. brevis KU15151. These results demonstrate that L. brevis KU15151 possesses an inhibitory effect against aLTA-mediated inflammation and may be employed as a functional probiotic for preventing inflammatory disorders.
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Ji KL, Wu MZ, Huang CY, GongPan PC, Sun P, Sun YL, Li J, Xiao CF, Xu YK, Fan QF, Hu HB, Song QS. Alpinia hainanensis Rhizome Extract Ameliorates Dextran Sulfate Sodium-Induced Ulcerative Colitis: Active Ingredient Investigation and Evaluation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3989-3999. [PMID: 35321548 DOI: 10.1021/acs.jafc.1c08038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Alpinia hainanensis is an important food spice and ethnic medicine in Southwest China. In this study, we found that the EtOAc-soluble fraction (AHE) of the A. hainanensis rhizome ethanol extract could ameliorate dextran sulfate sodium-induced ulcerative colitis (UC). To explore active constituents, five pairs of previously unreported enantiomers (1-5), together with nine known ones (6-14), were obtained. Structural characterization was achieved by comprehensive spectroscopic methods. Compounds 1 and 2 were new curcumin-butyrovanillone hybrids featuring a rare structural fragment of 2,3-dihyrofuran. The anti-inflammatory activities of isolates were evaluated, and the results indicated that compounds (-)-1, (-)-3, 6, 9, 11, and 12 significantly inhibited the nuclear factor-κB signaling pathway. These findings indicate the major active fraction of the A. hainanensis rhizome ethanol extract enriched with diarylheptanoids, flavonoids, phenolics, and their hybrid mixtures, which could be developed as a nutritional and dietary supplement for treating UC.
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Affiliation(s)
- Kai-Long Ji
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - Meng-Zhen Wu
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Chao-Ying Huang
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Pian-Chou GongPan
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - Peng Sun
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - Yi-Li Sun
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Bohai Rim Advanced Research Institute for Drug Discovery, Yantai 264000, Shandong, China
| | - Jia Li
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
- School of Medicine, Shanghai University, Shanghai 200444, China
- Bohai Rim Advanced Research Institute for Drug Discovery, Yantai 264000, Shandong, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, Zhejiang, China
| | - Chun-Fen Xiao
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - You-Kai Xu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - Qing-Fei Fan
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - Hua-Bin Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
| | - Qi-Shi Song
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, No. 88, Xuefu Rd., Kunming 650223, Yunnan, China
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Wu S, Rao G, Wang R, Pang Q, Zhang X, Huang R, Li T, Tang Z, Hu L. The neuroprotective effect of curcumin against ATO triggered neurotoxicity through Nrf2 and NF-κB signaling pathway in the brain of ducks. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:112965. [PMID: 34775344 DOI: 10.1016/j.ecoenv.2021.112965] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/28/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
Arsenic trioxide (ATO) has confirmed as a global pollutant, the toxic effect of which was not fully understood and lack effective therapies to against its associated toxicities. Curcumin (Cur) is a beneficial natural pigment for its antioxidant and anti-inflammatory properties. The purpose of this paper was to illustrate the antagonism of Cur against ATO-induced neurotoxicity. A total of 40 ducks were divided randomly into 4 groups and conducted via bite and sup for 28 days: control group (Control); 2 mg/kg ATO group (Low ATO); 4 mg/kg ATO group (Middle ATO); 8 mg/kg ATO group (High ATO); 400 mg/kg Cur group + 8 mg/kg ATO (Cur+ATO). The results showed that ATO exposure can hinder the duck growth and arsenic element accumulation rate increased in a dose-dependent manner. We observed neuronal shrinkage and vacuolize of HE staining in the ATO-treated group. In addition, SOD activity and T-AOC level reduced while MDA content increased in the ATO-exposed group. ATO exposure can decrease the expression of anti-oxidation related mRNA and proteins (Nrf2, SOD-1, GPX-1, CAT, Trx and HO-1) and anti-inflammatory makers (IL-4, IL-10), increased the expression of Keap1, NF-κB and pro-inflammatory makers (TNF-α, IL-1β, IL-18, IL-2, IL-6, INOS and COX-2). ATO treated might cause blood-brain barrier (BBB) damage through degradation of the tight junction proteins (TJs) occludin and ZO-1. Importantly, the experimental results also showed that Cur can alleviate oxidative stress, inflammatory response and BBB injury caused by ATO exposure through Nrf2 and NF-κB signaling pathway. The results suggested Cur exerted as a food additive and provided novel potential benefits of ATO toxicology in inflammation of the brain.
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Affiliation(s)
- Shaofeng Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| | - Gan Rao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| | - Rui Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| | - Qiling Pang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| | - Xiaoyong Zhang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
| | - Taotao Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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12
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Yu Y, Zheng C, Lu X, Deng C, Xu Q, Guo W, Wu Q, Wang Q, Liu C, Huang X, Song J. GB1a Ameliorates Ulcerative Colitis via Regulation of the NF-κB and Nrf2 Signaling Pathways in an Experimental Model. Front Med (Lausanne) 2021; 8:654867. [PMID: 34557497 PMCID: PMC8452853 DOI: 10.3389/fmed.2021.654867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 08/09/2021] [Indexed: 11/13/2022] Open
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease. The intake of African Garcinia Kola nuts has been reported as a therapy for diarrhea and dysentery in the African population. However, the mechanism of action through which Garcinia Kola nuts act to ameliorates UC remains unknown. GB1a is the main active component of Garcinia Kola nuts. In this study, we explored the therapeutic effects and underlying mechanism of GB1a on dextran sodium sulfate (DSS)-induced UC. Human Colonic Epithelial Cells (HCoEpic) were challenged with TNF-α to test the effects of GB1a in protecting against oxidative stress and inflammation in vitro. Our data showed that GB1a significantly attenuated DSS-induced colonic inflammatory injury manifested as reversed loss of body weight and disease activity index (DAI) scores in UC mice. We also showed that GB1a improved the permeability of the intestinal epithelium by modulating the expression of tight junction proteins (ZO-1, Occludin). Mechanistically, GB1a may activate the Nrf2 antioxidant signaling pathway and suppress the nuclear translocation of NF-κB in reduced oxidative stress and expression of inflammatory genes induced by TNF-α in HCoEpic cells. Our study suggests that GB1a alleviates inflammation, oxidative stress and the permeability of the colonic epithelial mucosa in UC mice via the repression of NF-κB and activation of Nrf2 signaling pathway.
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Affiliation(s)
- Yuanyuan Yu
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Congmin Zheng
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xu Lu
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Changsheng Deng
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,The First Affiliated Hospital and The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qin Xu
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,The First Affiliated Hospital and The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenfeng Guo
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,The First Affiliated Hospital and The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qingye Wu
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qi Wang
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Changhui Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinan Huang
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,The First Affiliated Hospital and The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianping Song
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China.,The First Affiliated Hospital and The First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
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13
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Youn GS, Park JK, Lee CY, Jang JH, Yun SH, Kwon HY, Choi SY, Park J. MicroRNA-22 negatively regulates LPS-induced inflammatory responses by targeting HDAC6 in macrophages. BMB Rep 2021. [PMID: 31964468 PMCID: PMC7196186 DOI: 10.5483/bmbrep.2020.53.4.209] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Dysregulation of histone deacetylase 6 (HDAC6) can lead to the pathologic states and result in the development of various diseases including cancers and inflammatory diseases. The objective of this study was to elucidate the regulatory role of microRNA-22 (miR-22) in HDAC6-mediated expression of proinflammatory cytokines in lipopolysaccharide (LPS)-stimulated macrophages. LPS stimulation induced HDAC6 expression, but suppressed miR-22 expression in macrophages, suggesting possible correlation between HDAC6 and miR-22. Luciferase reporter assays revealed that 3'UTR of HDAC6 was a bona fide target site of miR-22. Transfection of miR-22 mimic significantly inhibited LPS-induced HDAC6 expression, while miR-22 inhibitor further increased LPS-induced HDAC6 expression. LPS-induced activation of NF-κB and AP-1 was inhibited by miR-22 mimic, but further increased by miR-22 inhibitor. LPS-induced expression of pro-inflammatory cytokines such as TNF-α, IL-1β, and IL-6 was inhibited by miR-22 mimic, but further increased by miR-22 inhibitor. Taken together, these data provide evidence that miR-22 can downregulate LPS-induced expression of proinflammatory cytokines via suppression of NF-κB and AP-1 axis by targeting HDAC6 in macrophages. [BMB Reports 2020; 53(4): 223-228].
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Affiliation(s)
- Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jong Kook Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Chae Yeon Lee
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jae Hee Jang
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Sang Ho Yun
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Hyeok Yil Kwon
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
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14
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Hwang E, Yi TH, Yang JE, Park S, T. Ngo H, Seo S, Go E, Hwang JS. Skin-protective and anti-inflammatory effects of Hibiscus syriacus L. (Mugunghwa): A comparative study of five parts of the plant. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_185_19] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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15
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Lu C, Xie T, Guo X, Wu D, Li S, Li X, Lu Y, Wang X. Glucagon-like peptide-1 receptor agonist exendin-4 mitigates lipopolysaccharide-induced inflammatory responses in RAW264.7 macrophages. Int Immunopharmacol 2019; 77:105969. [DOI: 10.1016/j.intimp.2019.105969] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/02/2019] [Accepted: 10/07/2019] [Indexed: 02/06/2023]
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16
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Wang J, Gao Y, Lin F, Han K, Wang X. Omentin-1 attenuates lipopolysaccharide (LPS)-induced U937 macrophages activation by inhibiting the TLR4/MyD88/NF-κB signaling. Arch Biochem Biophys 2019; 679:108187. [PMID: 31706880 DOI: 10.1016/j.abb.2019.108187] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/20/2019] [Accepted: 11/05/2019] [Indexed: 01/29/2023]
Abstract
Macrophages play a pivotal role in the defense response against harmful pathogens and stimuli by releasing various pro-inflammatory mediators. However, overproduction of pro-inflammatory mediators will do harm to the organism and cause inflammation-associated diseases. Omentin-1, which is a newly discovered adipokine, is specifically expressed in omental adipose tissue. Recent studies have found correlations between omentin-1 and insulin resistance, diabetes, obesity, inflammation, atherosclerosis, bone metabolism, and tumor cell proliferation. Some studies have shown that the association between omentin-1, insulin resistance, and inflammation might suggest that omentin-1 plays an important role in chronic inflammatory diseases. In this study, we found that omentin-1 inhibited LPS-induced expression of inflammatory mediators and pro-inflammatory cytokines in macrophages. Furthermore, omentin-1 inhibited activation of the NF-κB pathway by suppressing both nuclear p65 accumulation and transfected NFκB promoter activity. Importantly, omentin-1 increased nuclear translocation of Nrf2. Our findings demonstrate that omentin-1 exerts anti-inflammatory effects on LPS-induced macrophages and has potential implication in the treatment of inflammation-associated diseases.
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Affiliation(s)
- Jinzhong Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou City, Hainan province, China
| | - Yi Gao
- Department of Infectious Disease, The Affiliated Hainan Hospital of Hainan Medical University, Haikou City, Hainan province, China
| | - Feng Lin
- Department of Infectious Disease, The Affiliated Hainan Hospital of Hainan Medical University, Haikou City, Hainan province, China
| | - Kui Han
- Department of Critical Care Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou City, Hainan province, China
| | - Xiaozhi Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou City, Hainan province, China.
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17
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Bai HW, Park CH, Jang DM, Kawala RA, Lee SS, Chung BY. Centipedegrass extracts regulate LPS-mediated aberrant immune responses by inhibiting Janus kinase. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 55:172-178. [PMID: 30668427 DOI: 10.1016/j.phymed.2018.06.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 05/20/2018] [Accepted: 06/19/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Centipedegrass extract (CGE) is rich in several polyphenolic compounds including C-glycosylflavonoids, such as maysin and its derivatives, and exerts antioxidant, anti-adipogenic and anticancer effects. However, the effect of CGE on the immune system is unclear. PURPOSE CGE might inhibit NO production induced by lipopolysaccharide (LPS). In this study, we propose a molecular mechanism for regulation of aberrant immune responses by CGE in LPS-stimulated RAW264.7 cells. STUDY DESIGN We will preparation of Centipedegrass extract and purify partially in rich of maysin and its derivatives. And examine the effect of the CGE on immune system using LPS-induced RAW cells and animals. METHODS LPS-induced nitric oxide (NO) and interleukin-6 levels were measured by enzyme-linked immunosorbent assay. The mRNA and protein levels of immune mediators were analyzed by reverse-transcription polymerase chain reaction and immunoblotting, respectively. RESULTS CGE inhibited LPS-induced NO production in a concentration-dependent manner by suppressing inducible nitric oxide synthase (iNOS) expression in LPS-stimulated cells; this effect was mediated by inhibition of the JAK/STAT pathway. However, CGE did not regulate the expression of other factors, including phosphorylated p38, c-jun N-terminal kinase, or extracellular signal-regulated kinase 1/2. In addition, CGE increased T cells percentage in peripheral blood after oral administration. CONCLUSION These results indicate that CGE suppresses LPS-induced production of NO and expression of iNOS by directly inhibiting JAK2 kinase activity and enhancing effects on the immune system in mice.
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Affiliation(s)
- Hyoung-Woo Bai
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea; Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Chul-Hong Park
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea
| | - Dong-Min Jang
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea
| | - Remigius Ambrose Kawala
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea; Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Seung Sik Lee
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea; Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Byung Yeoup Chung
- Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), Jeongeup 56212, Republic of Korea.
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18
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Zhu L, Gu P, Shen H. Protective effects of berberine hydrochloride on DSS-induced ulcerative colitis in rats. Int Immunopharmacol 2019; 68:242-251. [PMID: 30743078 DOI: 10.1016/j.intimp.2018.12.036] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/27/2018] [Accepted: 12/14/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Berberine hydrochloride is one the effective compound among Rhizoma Coptidis, Cortex Phellodendri, and other plants. There are several clinical functions of berberine hydrochloride including anti-inflammation, antitumor and immunoregulatory. However, the anti-inflammatory of berberine hydrochloride in ulcerative colitis is barely understood. In this study, we aimed to explore the effects of berberine hydrochloride on dextran sulfate sodium (DSS)-induced rats model of ulcerative colitis. METHODS The severity of colitis were measured by body weight, survial rate, colon length and disease activity index (DAI) score. The cytokines expression include IL-1, IL-1β, IL-4, IL-6, IL-10, IL-12, TNF-α, TGF-β and IFN-γ were performed by RT-PCR and ELISA. Signaling pathway proteins such as p-STAT3, STAT3, p-NF-κB p65 and NF-κB p65 were analyzed by western blot and immunofluorescence. The proteins expression of tight junction were explored using western blotting and immunohistochemistry. RESULT Rats were administered berberine hydrochloride showed less weight loss and longer colon length than the DSS-induced group. The expression of IL-1, IL-1β, IL-6, IL-12, TNF-α, TGF-β and IFN-γ were suppressed, yet the expression of IL-4 and IL-10 were up-regulated by berberine hydrochloride and sulphasalazine treatment compared to the model group. Meanwhile, treatment with berberine hydrochloride effectively increased the expression of SIgA and decreased the expression of iNOS, MPO, MDA. In terms of the biochemical analyses, the results showed that the expression of p-STAT3 was signifcantly increased, while the expression of p-NF-κB (p65) was suppressed compared to the model group via western blot and immunofluorescence analysis. CONCLUSIONS Berberine hydrochloride has beneficial effects in UC. The possible mechanism of anti-inflammatory response by berberine hydrochloride may involve in the blocking of the IL-6/STAT3/NF-κB signaling pathway. Collectively, these fndings provide evidence that berberine hydrochloride might be a useful herb medicine and serve as a promising novel therapy in the treatment of UC in humans.
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Affiliation(s)
- Lei Zhu
- Department of Gastroenterology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiang Su Province Hospital of TCM), Nan Jing, 210029, Jiang Su Province, China
| | - PeiQing Gu
- Department of Gastroenterology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiang Su Province Hospital of TCM), Nan Jing, 210029, Jiang Su Province, China
| | - Hong Shen
- Department of Gastroenterology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine (Jiang Su Province Hospital of TCM), Nan Jing, 210029, Jiang Su Province, China.
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19
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Lu M, Dai Y, Xu M, Zhang C, Ma Y, Gao P, Teng M, Jiao K, Huang G, Zhang J, Yang Y, Chu Z. The Attenuation of 14-3-3ζ is Involved in the Caffeic Acid-Blocked Lipopolysaccharide-Stimulated Inflammatory Response in RAW264.7 Macrophages. Inflammation 2018; 40:1753-1760. [PMID: 28688098 DOI: 10.1007/s10753-017-0618-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inflammation plays important roles in the initiation and progress of many diseases. Caffeic acid (CaA) is a naturally occurring hydroxycinnamic acid derivative, which shows hypotoxicity and diverse biological functions, including anti-inflammation. The molecular mechanisms involved in the CaA-inhibited inflammatory response are very complex; generally, the down-regulated phosphorylation of such important transcriptional factors, for example, nuclear factor κB (NF-κB) and signal transducers and activators of transcription-3 (STAT-3), plays an important role. Here, we found that in RAW264.7 macrophage cells, CaA blocked lipopolysaccharide (LPS)-stimulated inflammatory response by attenuating the expression of 14-3-3ζ (a phosphorylated protein regulator). Briefly, the increased expression of 14-3-3ζ was involved in the LPS-induced inflammatory response. CaA blocked the LPS-elevated 14-3-3ζ via attenuating the LPS-induced tumor necrosis factor-α (TNF-α) secretion and via enhancing the 14-3-3ζ ubiquitination. These processes inhibited the LPS-induced activation (phosphorylation) of NF-κB and STAT-3, in turn blocked the transcriptional activation of inducible NO synthase (iNOS), interleukin-6 (IL-6), and TNF-α, and finally attenuated the productions of nitric oxide (NO), IL-6, and TNF-α. By understanding a novel mechanism whereby CaA inhibited the 14-3-3ζ, our study expanded the understanding of the molecular mechanisms involved in the anti-inflammation potential induced by CaA.
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Affiliation(s)
- Ming Lu
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Yi Dai
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Miao Xu
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Chi Zhang
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Yuhong Ma
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Ping Gao
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Mengying Teng
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Kailin Jiao
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Guangming Huang
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Jianping Zhang
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China.
| | - Ye Yang
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
| | - Zhiping Chu
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China.
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Ren D, Wang P, Liu C, Wang J, Liu X, Liu J, Min W. Hazelnut protein-derived peptide LDAPGHR shows anti-inflammatory activity on LPS-induced RAW264.7 macrophage. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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21
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Woolbright SA, Rehill BJ, Lindroth RL, DiFazio SP, Martinsen GD, Zinkgraf MS, Allan GJ, Keim P, Whitham TG. Large effect quantitative trait loci for salicinoid phenolic glycosides in Populus: Implications for gene discovery. Ecol Evol 2018; 8:3726-3737. [PMID: 29686853 PMCID: PMC5901179 DOI: 10.1002/ece3.3932] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 01/11/2018] [Accepted: 01/23/2018] [Indexed: 01/01/2023] Open
Abstract
Genomic studies have been used to identify genes underlying many important plant secondary metabolic pathways. However, genes for salicinoid phenolic glycosides (SPGs)—ecologically important compounds with significant commercial, cultural, and medicinal applications—remain largely undescribed. We used a linkage map derived from a full‐sib population of hybrid cottonwoods (Populus spp.) to search for quantitative trait loci (QTL) for the SPGs salicortin and HCH‐salicortin. SSR markers and primer sequences were used to anchor the map to the V3.0 P. trichocarpa genome. We discovered 21 QTL for the two traits, including a major QTL for HCH‐salicortin (R2 = .52) that colocated with a QTL for salicortin on chr12. Using the V3.0 Populus genome sequence, we identified 2,983 annotated genes and 1,480 genes of unknown function within our QTL intervals. We note ten candidate genes of interest, including a BAHD‐type acyltransferase that has been potentially linked to PopulusSPGs. Our results complement other recent studies in Populus with implications for gene discovery and the evolution of defensive chemistry in a model genus. To our knowledge, this is the first study to use a full‐sib mapping population to identify QTL intervals and gene lists associated with SPGs.
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Affiliation(s)
- Scott A Woolbright
- Department of Biology University of Arkansas at Little Rock Little Rock AR USA
| | - Brian J Rehill
- Department of Chemistry US Naval Academy Annapolis MD USA
| | | | | | - Gregory D Martinsen
- Environmental Genetics and Genomics Laboratory (EnGGen) Department of Biological Sciences Merriam-Powell Center for Environmental Research Northern Arizona University Flagstaff AZ USA
| | | | - Gerard J Allan
- Environmental Genetics and Genomics Laboratory (EnGGen) Department of Biological Sciences Merriam-Powell Center for Environmental Research Northern Arizona University Flagstaff AZ USA
| | - Paul Keim
- Department of Biological Sciences Pathogen and Microbe Institute Northern Arizona University Flagstaff AZ USA
| | - Thomas G Whitham
- Environmental Genetics and Genomics Laboratory (EnGGen) Department of Biological Sciences Merriam-Powell Center for Environmental Research Northern Arizona University Flagstaff AZ USA
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22
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Park JH, Lee TK, Ahn JH, Shin BN, Cho JH, Kim IH, Lee JC, Kim JD, Lee YJ, Kang IJ, Hong S, Kim YH, Jeon YH, Lee YL, Won MH. Pre-treated Populus tomentiglandulosa extract inhibits neuronal loss and alleviates gliosis in the gerbil hippocampal CA1 area induced by transient global cerebral ischemia. Anat Cell Biol 2017; 50:284-292. [PMID: 29354300 PMCID: PMC5768565 DOI: 10.5115/acb.2017.50.4.284] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/20/2017] [Accepted: 08/23/2017] [Indexed: 12/18/2022] Open
Abstract
The genus Populus (poplar) belonging to the Salicaceae family has been used in traditional medicine, and its several species show various pharmacological properties including antioxidant and anti-inflammatory effects. No study regarding protective effects of Populus species against cerebral ischemia has been reported. Therefore, in the present study, we examined neuroprotective effects of ethanol extract from Populus tomentiglandulosa (Korea poplar) in the hippocampal cornu ammonis (CA1) area of gerbils subjected to 5 minutes of transient global cerebral ischemia. Pretreatment with 200 mg/kg of P. tomentiglandulosa extract effectively protected CA1 pyramidal neurons from transient global cerebral ischemia. In addition, glial fibrillary acidic protein immunoreactive astrocytes and ionized calcium binding adapter molecule 1 immunoreactive microglia were significantly diminished in the ischemic CA1 area by pretreatment with 200 mg/kg of P. tomentiglandulosa extract. Briefly, our results indicate that pretreatment with P. tomentiglandulosa extract protects neurons from transient cerebral ischemic injury and diminish cerebral ischemia-induced reactive gliosis in ischemic CA1 area. Based on these results, we suggest that P. tomentiglandulosa can be used as a potential candidate for prevention of ischemic injury.
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Affiliation(s)
- Joon Ha Park
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Korea
| | - Tae-Kyeong Lee
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Ji Hyeon Ahn
- Department of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Korea
| | - Bich-Na Shin
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Jeong Hwi Cho
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - In Hye Kim
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Jae-Chul Lee
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Jong-Dai Kim
- Division of Food Biotechnology, School of Biotechnology, Kangwon National University, Chuncheon, Korea
| | - Young Joo Lee
- Department of Emergency Medicine, Sooncheonhyang University Seoul Hospital, Sooncheonhyang University College of Medicine, Seoul, Korea
| | - Il Jun Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Korea
| | - Seongkweon Hong
- Department of Surgery, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Yang Hee Kim
- Department of Surgery, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Yong Hwan Jeon
- Department of Radiology, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Yun Lyul Lee
- Department of Physiology and Institute of Neurodegeneration and Neuroregeneration, Hallym University College of Medicine, Chuncheon, Korea
| | - Moo-Ho Won
- Department of Neurobiology, Kangwon National University School of Medicine, Chuncheon, Korea
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Cheng P, Wang T, Li W, Muhammad I, Wang H, Sun X, Yang Y, Li J, Xiao T, Zhang X. Baicalin Alleviates Lipopolysaccharide-Induced Liver Inflammation in Chicken by Suppressing TLR4-Mediated NF-κB Pathway. Front Pharmacol 2017; 8:547. [PMID: 28868036 PMCID: PMC5563358 DOI: 10.3389/fphar.2017.00547] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 08/04/2017] [Indexed: 12/31/2022] Open
Abstract
As a kind of potent stimulus, lipopolysaccharide (LPS) has the ability to cause cell damage by activating toll-like receptor(TLR)4, then nuclear factor kappa B (NF-κB) translocates into the nucleus and changes the expression of related inflammatory genes. Baicalin is extracted from Radix Scutellariae, which possesses anti-inflammation, antioxidant and antibacterial properties. However, the effects of it on LPS-induced liver inflammation have not been fully elucidated. This study aims to investigate the anti-inflammatory effects of Baicalin on the LPS-induced liver inflammation and its underlying molecular mechanisms in chicken. The results of histopathological changes, serum biochemical analysis, NO levels and myeloperoxidase activity showed that Baicalin pretreatment ameliorated LPS-induced liver inflammation. ELISA and qPCR assays showed that Baicalin dose-dependently suppressed the production of IL-1β, IL-6, and TNF-α. Furthermore, the mRNA expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) were significantly decreased by Baicalin. TLR4 is an important sensor in LPS infection. Molecular studies showed that the expression of TLR4 was inhibited by Baicalin pretreatment. In addition, Baicalin pretreatment inhibited NF-kB signaling pathway activation. All results demonstrated the protective effects of Baicalin pretreatment against LPS-induced liver inflammation in chicken via negative regulation of inflammatory mediators through the down-regulation of TLR4 expression and the inhibition of NF-kB activation.
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Affiliation(s)
- Ping Cheng
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Tong Wang
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Wei Li
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Ishfaq Muhammad
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - He Wang
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Xiaoqi Sun
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Yuqi Yang
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Jiarui Li
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Tianshi Xiao
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
| | - Xiuying Zhang
- Department of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural UniversityHarbin, China
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Chen C, Cao M, Wu D, Li N, Peng J, Song L, Qi P, Zhang M, Zhao J. KH-type splicing regulatory protein mediate inflammatory response in gastric epithelial cells induced by lipopolysaccharide. Cell Biol Int 2017; 41:871-878. [PMID: 28618119 DOI: 10.1002/cbin.10804] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 06/11/2017] [Indexed: 11/06/2022]
Abstract
To study differential expressions of KH-type splicing regulatory protein (KSRP) and inflammatory factors and to explore the relationship between them in Lipopolysaccharide (LPS)-induced gastric epithelial cells (GES-1), cells were exposed to LPS for 24 h in the presence or absence of SC-514. Western blot and real-time PCR (RT-PCR) were used to analysis the contents of KSRP, inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2). The results showed that LPS decreased the expression of KSRP protein in GES-1 cells, but not KSRP mRNA, while increasing the levels of iNOS and COX-2 proteins and mRNAs in GES-1cells. High expression of KSRP induced low expressions and stabilities of iNOS and COX-2 in GES-1 cells, indicated that KSRP protein presented negative correlation with iNOS and COX-2 with LPS stimulation. In conclusion, the regulation of expression of KSRP was mainly achieved through post-translational modification. KSRP protein participated in regulating the expression of iNOS and COX-2 in their transcription and translation levels. In response to LPS or gram negative pathogenic microorganism, KSRP could regulate Toll-like receptor (TLR)/ Nuclear factor-kappa B (NF-κB) signal pathway in GES-1 cells.
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Affiliation(s)
- Chong Chen
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
| | - Mei Cao
- Core Laboratory, School of Medicine, Sichuan Provincial People's Hospital Affiliated to University of Electronic Science and Technology of China, Chengdu, 610072, P.R. China
| | - Daoyan Wu
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
| | - Ningzhe Li
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
| | - Jingshan Peng
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
| | - Liju Song
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
| | - Panpan Qi
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
| | - Mao Zhang
- Core Laboratory, School of Medicine, Sichuan Provincial People's Hospital Affiliated to University of Electronic Science and Technology of China, Chengdu, 610072, P.R. China
| | - Jian Zhao
- Key Laboratory of Biological Resource and Ecological Environment of Chinese Education Ministry, College of Life Science, Sichuan University, Chengdu, 610064, P.R. China
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Yin K, Zhu R, Wang S, Zhao RC. Low level laser (LLL) attenuate LPS-induced inflammatory responses in mesenchymal stem cells via the suppression of NF-κB signaling pathway in vitro. PLoS One 2017; 12:e0179175. [PMID: 28594941 PMCID: PMC5464618 DOI: 10.1371/journal.pone.0179175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 05/24/2017] [Indexed: 11/26/2022] Open
Abstract
Background Considering promising results in animal models and patients, therapeutic use of MSCs for immune disease is likely to undergo continued evaluation. Low-lever laser (LLL) has been widely applied to retard the inflammatory reaction. LLL treatment can potentially be applied in anti-inflammatory therapy followed by stem cell therapy. Aim of the study The purpose of this study was to investigate the effect of LLL (660 nm) on the inflammatory reaction induced by LPS in human adipose derived mesenchymal stem cells (hADSCs) and pertinent mechanism. Materials and methods Anti-inflammatory activity of LLL was investigated by LPS-induced mesenchymal stem cells. The production and expression of pro-inflammatory cytokines were evaluated by ELISA kits and RT-qPCR. Nuclear translocation of NF-κB was indicated by immunofluorescent staining. Phosphorylation status of NF-κB p65 and IκBα were illustrated by western blot assay. ROS generation was measured with CM-H2DCFDA, and NO secretion was determined by DAF-FM. We studied surface expression of lymphocyte activation markers when Purified peripheral blood mononuclear cell (PBMC) were activated by phytohaemagglutinin (PHA) in the presence of 3 types of treated MSCs. Results LLL reduced the secretion of IL-1β, IL-6, IL8, ROS and NO in LPS treated MSCs. Immunofluorescent assay demonstrated the nuclear translocation decrease of NF-κB in LLL treated LPS induced MSCs. Western blot analysis also suggested that LLL suppressed NF-κB activation via regulating the phosphorylation of p65 and IκBα. MSC significantly reduced the expression of activation markers CD25 and CD69 on PHA-stimulated lymphocytes. Conclusion The results indicate that LLL suppressed the activation of NF-κB signaling pathway in LPS treated MSCs through inhibiting phosphorylation of p65 and IκBα, which results in good anti-inflammatory effect. In addition, LLL attenuated activation-associated markers CD25 and CD69 in co-cultures of PBMC and 3 types of treated MSCs.
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Affiliation(s)
- Kan Yin
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Rongjia Zhu
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Shihua Wang
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Robert Chunhua Zhao
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
- * E-mail:
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26
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Chen X, Zhang S, Xuan Z, Ge D, Chen X, Zhang J, Wang Q, Wu Y, Liu B. The Phenolic Fraction of Mentha haplocalyx and Its Constituent Linarin Ameliorate Inflammatory Response through Inactivation of NF-κB and MAPKs in Lipopolysaccharide-Induced RAW264.7 Cells. Molecules 2017; 22:E811. [PMID: 28509854 PMCID: PMC6154462 DOI: 10.3390/molecules22050811] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/01/2017] [Accepted: 05/09/2017] [Indexed: 12/11/2022] Open
Abstract
Mentha haplocalyx has been widely used for its flavoring and medicinal properties and as a traditional Chinese medicine with its anti-inflammation properties. The present study was designed to investigate the anti-inflammatory effects and potential molecular mechanisms of the phenolic fraction of M. haplocalyx (MHP) and its constituent linarin in lipopolysaccharide (LPS)-induced RAW264.7 cells. The high-performance liquid chromatography coupled with linear ion trap-orbitrap mass spectrometry (HPLC-LTQ-Orbitrap MS) was used to analyze the chemical composition of MHP. Using the enzyme-linked immunosorbent assay (ELISA) and quantitative realtime polymerase chain reaction (qRT-PCR), the expression of pro-inflammatory meditators and cytokines was measured at the transcriptional and translational levels. Western blot analysis was used to further investigate changes in the nuclear factor kappa B (NF-κB), mitogen-activated protein kinase (MAPK), and Akt signaling pathways. Fourteen phenolic constituents were identified from MHP based on the data of the mass spectrometry (MS)/MS analysis. MHP and linarin decreased the production of NO, tumor necrosis factor-α (TNF-α), interlenkin-1β (IL-1β), and IL-6. The messenger ribonucleic acid (mRNA) expression levels of inducible NO synthase (iNOS), TNF-α, IL-1β, and IL-6 were also suppressed by MHP and linarin. Further investigation showed that MHP and linarin down-regulated LPS-induced phosphorylation content of NF-κB p65, inhibitor kappa B α (IκBα), extracellular signal-regulated kinase (ERK), c-Jun NH₂-terminal kinase (JNK), and p38. However, MHP and linarin showed no inhibitory effect on the phosphorylated Akt. These results suggested that MHP and linarin exerted a potent inhibitory effect on pro-inflammatory meditator and cytokines production via the inactivation of NF-κB and MAPKs, and they may serve as potential modulatory agents for the prevention and treatment of inflammatory diseases.
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Affiliation(s)
- Xiangyang Chen
- Department of Traditional Chinese Medicine Chemistry, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China.
| | - Shujing Zhang
- Department of Scientific Research Center, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Zinan Xuan
- Department of Microbiology and Immunology, School of Life Science, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Dongyu Ge
- Department of Scientific Research Center, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Xiaoming Chen
- Department of Microbiology and Immunology, School of Life Science, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Junjie Zhang
- Department of Microbiology and Immunology, School of Life Science, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Qian Wang
- Department of Pathology, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Ying Wu
- Department of Microbiology and Immunology, School of Life Science, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Bin Liu
- Department of Traditional Chinese Medicine Chemistry, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China.
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An SY, Youn GS, Kim H, Choi SY, Park J. Celastrol suppresses expression of adhesion molecules and chemokines by inhibiting JNK-STAT1/NF-κB activation in poly(I:C)-stimulated astrocytes. BMB Rep 2017; 50:25-30. [PMID: 28027722 PMCID: PMC5319661 DOI: 10.5483/bmbrep.2017.50.1.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Indexed: 01/05/2023] Open
Abstract
In the central nervous system, viral infection can induce inflammation by up-regulating pro-inflammatory mediators that contribute to enhanced infiltration of immune cells into the central nervous areas. Celastrol is known to exert various regulatory functions, including anti-microbial activities. In this study, we investigated the regulatory effects and the mechanisms of action of celastrol against astrocytes activated with polyinosinic-polycytidylic acid (poly(I:C)), a synthetic dsRNA, as a model of pro-inflammatory mediated responses. Celastrol significantly inhibited poly(I:C)-induced expression of adhesion molecules, such as ICAM-1/VCAM-1, and chemokines, such as CCL2, CXCL8, and CXCL10, in CRT-MG human astroglioma cells. In addition, celastrol significantly suppressed poly(I:C)-induced activation of JNK MAPK and STAT1 signaling pathways. Furthermore, celastrol significantly suppressed poly(I:C)-induced activation of the NF-κB signaling pathway. These results suggest that celastrol may exert its regulatory activity by inhibiting poly(I:C)-induced expression of pro-inflammatory mediators by suppressing activation of JNK MAPK-STAT1/NF-κB in astrocytes. [BMB Reports 2017; 50(1): 25-30].
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Affiliation(s)
- Soo Yeon An
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Hyejin Kim
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
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Park GS, Kim JK, Kim JH. Anti-inflammatory action of ethanolic extract of Ramulus mori on the BLT2-linked cascade. BMB Rep 2017; 49:232-7. [PMID: 26879317 PMCID: PMC4915243 DOI: 10.5483/bmbrep.2016.49.4.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Indexed: 12/18/2022] Open
Abstract
Mulberry tree twigs (Ramulus mori) contain large amounts of oxyresveratrols and have traditionally been used as herbal medicines because of their anti-inflammatory properties. However, the signaling mechanism by which R. mori exerts its anti-inflammatory action remains to be elucidated. In this study, we observed that R. mori ethanol extracts (RME) exerted an inhibitory effect on the lipopolysaccharide (LPS)-induced production of the pro-inflammatory cytokine interleukin-6 (IL-6) in Raw264.7 macrophage cells. Additionally, RME inhibited IL-6 production by blocking the leukotriene B4 receptor-2 (BLT2)-dependent-NADPH oxidase 1 (NOX1)-reactive oxygen species (ROS) cascade, leading to anti-inflammatory activity. Finally, RME suppressed the production of the BLT2 ligands LTB4 and 12(S)-HETE by inhibiting the p38 kinase-cytosolic phospholipase A2-5-/12-lipoxygenase cascade in LPS-stimulated Raw264.7 cells. Overall, our results suggest that RME inhibits the ‘BLT2 ligand-BLT2’-linked autocrine inflammatory axis, and that this BLT2-linked cascade is one of the targets of the anti-inflammatory action of R. mori. [BMB Reports 2016; 49(4): 232-237]
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Affiliation(s)
- Geun-Soo Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
| | - Jeong-Keun Kim
- Department of Chemical Engineering and Biotechnology, Korea Polytechnic University, Shihung 15073, Korea
| | - Jae-Hong Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea
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Zhai XT, Chen JQ, Jiang CH, Song J, Li DY, Zhang H, Jia XB, Tan W, Wang SX, Yang Y, Zhu FX. Corydalis bungeana Turcz. attenuates LPS-induced inflammatory responses via the suppression of NF-κB signaling pathway in vitro and in vivo. JOURNAL OF ETHNOPHARMACOLOGY 2016; 194:153-161. [PMID: 27616027 DOI: 10.1016/j.jep.2016.09.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 08/26/2016] [Accepted: 09/07/2016] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Corydalis bungeana Turcz. (C. bungeana) is one of traditionally used medicines in China and possesses various biological effects, such as anti-inflammatory, antibacterial activity and inhibition of the immune function of the host. AIM OF THE STUDY we studied the anti-inflammatory effect and molecular mechanism involved of C. bungeana both in vitro and in vivo model system in which the inflammatory response was induced by LPS treatment. MATERIALS AND METHODS Anti-inflammatory activity of C. bungeana was investigated by LPS-induced RAW 264.7 macrophages and BALB/c mice. The production and expression of pro-inflammatory cytokines were evaluated by Griess reagent, ELISA kits and RT-qPCR, respectively. Phosphorylation status of IκBα and p65 was illustrated by western blot assay. RESULTS C. bungeana reduced the secretion of NO, TNF-α, IL-6 and IL-1β through inhibiting the protein expression of iNOS, TNF-α, IL-6 and IL-1β in vitro and in vivo. Western blot analysis suggested that C. bungeana supressed NF-κB activation via regulating the phosphorylation of IκBα and p65. Immunohistochemical assay also demostrated the histological inflammatory change in liver tissue. CONCLUSIONS The results indicate that C. bungeana supresses the activation of NF-κB signaling pathway through inhibiting phosphorylation of IκBα and p65, which results in good anti-inflammatory effect. In addition, C. bungeana attenuates inflammatory reaction by supressing the expression of various inflammatory cytokines both in vivo and in vitro.
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Affiliation(s)
- Xiao-Ting Zhai
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China; Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Jia-Quan Chen
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, PR China
| | - Cui-Hua Jiang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, Jiangsu Province, PR China
| | - Jie Song
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China
| | - Dong-Yu Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China
| | - Hao Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China
| | - Xiao-Bin Jia
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China
| | - Wei Tan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China
| | - Shu-Xia Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Department of Clinical Laboratory, Jiangsu Province Hospital on Integration Medicine, Nanjing 210028, PR China
| | - Yi Yang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China
| | - Fen-Xia Zhu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, PR China; Key Laboratory of New Drug Delivery System of Chinese Meteria Medica, Jiangsu Province Academy of Chinese Medicine, Nanjing 210028, PR China.
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Lee HL, Kang KS. Protection Effect of Punicalagin Isolated from Pomegranate on Inflammation and Ethanol-induced Gastric Mucosal Injury. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hye Lim Lee
- College of Korean Medicine; Gachon University; Seongnam 13120 Korea
| | - Ki Sung Kang
- College of Korean Medicine; Gachon University; Seongnam 13120 Korea
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Kim H, Youn GS, An SY, Kwon HY, Choi SY, Park J. 2,3-Dimethoxy-2'-hydroxychalcone ameliorates TNF-α-induced ICAM-1 expression and subsequent monocyte adhesiveness via NF-kappaB inhibition and HO-1 induction in HaCaT cells. BMB Rep 2016; 49:57-62. [PMID: 26277982 PMCID: PMC4914214 DOI: 10.5483/bmbrep.2016.49.1.141] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 01/20/2023] Open
Abstract
Up-regulation of adhesion molecules plays an important role in the infiltration of leukocytes into the skin during the development of various inflammatory skin diseases, such as atopic dermatitis. In this study, we investigated the modulatory effects of 2,3-dimethoxy-2′-hydroxychalcone (DMHC) on tumor necrosis factor (TNF)-α-induced intercellular adhesion molecule-1 (ICAM-1) expression and monocyte adhesiveness, as well as the molecular mechanisms underlying its action in the HaCaT human keratinocyte cell line. Pre-treating HaCaT cells with DMHC significantly suppressed TNF-α-induced ICAM-1 expression and subsequent monocyte adhesiveness. DMHC inhibited TNF-α-induced activation of NF-ᴋB. In addition, DMHC induced HO-1 expression as well as NRF2 activation. Furthermore, HO-1 knockdown using siRNA reversed the inhibitory effect of DMHC on TNF-α-induced ICAM-1 expression and adhesion of monocytes to keratinocytes. These results suggest that DMHC may inhibit TNF-α-induced ICAM-1 expression and adhesion of monocytes to keratinocytes by suppressing the signaling cascades leading to NF-ᴋB activation and inducing HO-1 expression in keratinocytes. [BMB Reports 2016; 49(1): 57-62]
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Affiliation(s)
- Hyejin Kim
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Soo Yeon An
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Hyeok Yil Kwon
- Department of Physiology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
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The Anti-Inflammatory Effects and Mechanisms of Eupafolin in Lipopolysaccharide-Induced Inflammatory Responses in RAW264.7 Macrophages. PLoS One 2016; 11:e0158662. [PMID: 27414646 PMCID: PMC4945065 DOI: 10.1371/journal.pone.0158662] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 06/20/2016] [Indexed: 12/22/2022] Open
Abstract
Eupafolin is a flavone isolated from Artemisia princeps Pampanini (family Asteraceae). The aim of this study was to examine the anti-inflammatory effects of eupafolin in lipopolysaccharide (LPS)-treated RAW264.7 macrophages and LPS-induced mouse skin and lung inflammation models and to identify the mechanism underlying these effects. Eupafolin decreased the LPS-induced release of inflammatory mediators (iNOS, COX-2 and NO) and proinflammatory cytokines (IL-6 and TNF-α) from the RAW264.7 macrophages. Eupafolin inhibited the LPS-induced phosphorylation of p38 MAPK, ERK1/2, JNK, AKT and p65 and the nuclear translocation of p65 and c-fos. These effects were mainly mediated by the inhibition of JNK. In the mouse paw and lung models, eupafolin effectively suppressed the LPS-induced edema formation and down-regulated iNOS and COX-2 expression. These results demonstrated that eupafolin exhibits anti-inflammatory properties and suggested that eupafolin can be developed as an anti-inflammatory agent.
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Seo WY, Youn GS, Choi SY, Park J. Butein, a tetrahydroxychalcone, suppresses pro-inflammatory responses in HaCaT keratinocytes. BMB Rep 2016; 48:495-500. [PMID: 25541056 PMCID: PMC4641232 DOI: 10.5483/bmbrep.2015.48.9.259] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Indexed: 01/29/2023] Open
Abstract
Up-regulation of cell adhesion molecules and proinflammatory cytokines contributes to enhanced monocyte adhesiveness and infiltration into the skin, during the pathogenesis of various inflammatory skin diseases, including atopic dermatitis. In this study, we examined the anti-inflammatory effects of butein, a tetrahydroxychalcone, and its action mechanisms using TNF-α-stimulated keratinocytes. Butein significantly inhibited TNF-α-induced ICAM-I expression and monocyte adhesion in human keratinocyte cell line HaCaT. Butein also decreased TNF-α-induced pro-inflammatory mediators, such as IL-6, IP-10 and MCP-1, in HaCaT cells. Butein decreased TNF-α-induced ROS generation in a dose-dependent manner in HaCaT cells. In addition, treatment of HaCaT cells with butein suppressed TNF-α-induced MAPK activation. Furthermore, butein suppressed TNF-α-induced NF-kappaB activation. Overall, our results indicate that butein has immunomodulatory activities by inhibiting expression of proinflammatory mediators in keratinocytes. Therefore, butein may be used as a therapeutic agent for the treatment of inflammatory skin diseases. [BMB Reports 2015; 48(9): 495-500]
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Affiliation(s)
- Won Yong Seo
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Korea
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Ahn EH, Kim DW, Shin MJ, Ryu EJ, Yong JI, Chung SY, Cha HJ, Kim SJ, Choi YJ, Kim DS, Cho SW, Lee K, Cho YS, Kwon HY, Park J, Eum WS, Choi SY. Tat-ATOX1 inhibits streptozotocin-induced cell death in pancreatic RINm5F cells and attenuates diabetes in a mouse model. Int J Mol Med 2016; 38:217-24. [PMID: 27222268 DOI: 10.3892/ijmm.2016.2599] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 04/27/2016] [Indexed: 11/06/2022] Open
Abstract
Antioxidant 1 (ATOX1) functions as an antioxidant against hydrogen peroxide and superoxide, and therefore may play a significant role in many human diseases, including diabetes mellitus (DM). In the present study, we examined the protective effects of Tat-ATOX1 protein on streptozotocin (STZ)-exposed pancreatic insulinoma cells (RINm5F) and in a mouse model of STZ-induced diabetes using western blot analysis, immunofluorescence staining and MTT assay, as well as histological and biochemical analysis. Purified Tat-ATOX1 protein was efficiently transduced into RINm5F cells in a dose- and time-dependent manner. Additionally, Tat-ATOX1 protein markedly inhibited reactive oxygen species (ROS) production, DNA damage and the activation of Akt and mitogen activated protein kinases (MAPKs) in STZ-exposed RINm5F cells. In addition, Tat-ATOX1 protein transduced into mice pancreatic tissues and significantly decreased blood glucose and hemoglobin A1c (HbA1c) levels as well as the body weight changes in a model of STZ-induced diabetes. These results indicate that transduced Tat-ATOX1 protein protects pancreatic β-cells by inhibiting STZ-induced cellular toxicity in vitro and in vivo. Based on these findings, we suggest that Tat-ATOX1 protein has potential applications as a therapeutic agent for oxidative stress-induced diseases including DM.
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Affiliation(s)
- Eun Hee Ahn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung, Gangwon-do 25457, Republic of Korea
| | - Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Eun Ji Ryu
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Ji In Yong
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Seok Young Chung
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Hyun Ju Cha
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Sang Jin Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Yeon Joo Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Duk-Soo Kim
- Department of Anatomy, College of Medicine, Soonchunhyang University, Cheonan-Si, Chungnam 31538, Republic of Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Keunwook Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Yoon Shin Cho
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Hyeok Yil Kwon
- Department of Physiology, College of Medicine, Hallym University, Chuncheon, Gangwon-do 24252, Republic of Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon‑do 24252, Republic of Korea
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Seong MA, Woo JK, Kang JH, Jang YS, Choi S, Jang YS, Lee TH, Jung KH, Kang DK, Hurh BS, Kim DE, Kim SY, Oh SH. Oral administration of fermented wild ginseng ameliorates DSS-induced acute colitis by inhibiting NF-κB signaling and protects intestinal epithelial barrier. BMB Rep 2016; 48:419-25. [PMID: 25936779 PMCID: PMC4577293 DOI: 10.5483/bmbrep.2015.48.7.039] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 01/05/2023] Open
Abstract
Ginseng has been widely used for therapeutic and preventive purposes for thousands of years. However, orally administered ginseng has very low bioavailability and absorption in the intestine. Therefore, fermented ginseng was developed to enhance the beneficial effects of ginseng in the intestine. In this study, we investigated the molecular mechanisms underlying the anti-inflammatory activity of fermented wild ginseng (FWG). We found that FWG significantly alleviated the severity of colitis in a dextran sodium sulfate (DSS)-induced colitis mouse model, and decreased expression level of pro-inflammatory cytokines in colonic tissue. Moreover, we observed that FWG suppressed the infiltration of macrophages in DSS-induced colitis. FWG also attenuated the transcriptional activity of nuclear factor-κB (NF-κB) by reducing the translocation of NF-κB into the nucleus. Our data indicate that FWG contains anti-inflammatory activity via NF-κB inactivation and could be useful for treating colitis.
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Affiliation(s)
- Myeong A Seong
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
| | - Jong Kyu Woo
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
| | - Ju-Hee Kang
- Research Institute, National Cancer Center, Goyang 410-769, Korea
| | - Yeong Su Jang
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
| | - Seungho Choi
- College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Young Saeng Jang
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
| | - Taek Hwan Lee
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
| | | | | | | | - Dae Eung Kim
- Sempio Fermentation Research center, Osong 363-954, Korea
| | - Sun Yeou Kim
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
| | - Seung Hyun Oh
- Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 406-840, Korea
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Cho CH, Kim EA, Kim J, Choi SY, Yang SJ, Cho SW. N-Adamantyl-4-methylthiazol-2-amine suppresses amyloid β-induced neuronal oxidative damage in cortical neurons. Free Radic Res 2016; 50:678-90. [PMID: 27002191 DOI: 10.3109/10715762.2016.1167277] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Recently, we have reported that N-adamantyl-4-methylthiazol-2-amine (KHG26693) successfully reduced the production of oxidative stress in streptozotocin-induced diabetic rats and lipopolysaccharide-induced BV-2 microglial cells by increasing their antioxidant capacity. However, antioxidative effects of KHG26693 against Aβ (Aβ)-induced oxidative stress have not yet been reported. In the present study, we further investigated the antioxidative function of KHG26693 in Aβ-mediated primary cultured cortical neurons. We showed here that KHG26693 attenuated Aβ-induced cytotoxicity, increase of Bax/Bcl-2 ratio, elevation of caspase-3 expression, and impairment of mitochondrial membrane potential in cultured primary cortical neurons. KHG26693 also decreases the Aβ-mediated formation of malondialdehyde, reactive oxygen species, and NO production by decreasing nitric oxide synthase (iNOS) and NADPH oxidase level. Moreover, KHG26693 suppress the Aβ-induced oxidative stress through a possible mechanism involving attenuation of GSH and antioxidant enzyme activities such as glutathione reductase and glutathione peroxidase (GPx). Finally, pretreatment of cortical neurons with KHG26693 significantly reduced the Aβ-induced protein oxidation and nitration. To our knowledge, this is the first report, showing that KHG26693 significantly attenuates Aβ-induced oxidative stress in primary cortical neurons, and may prove attractive strategies to reduce Aβ-induced neural cell death.
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Affiliation(s)
- Chang Hun Cho
- a Department of Biochemistry and Molecular Biology , University of Ulsan College of Medicine , Seoul , Republic of Korea
| | - Eun-A Kim
- b Department of Biomedical Laboratory Science , Konyang University , Daejeon , Republic of Korea
| | - Jiae Kim
- a Department of Biochemistry and Molecular Biology , University of Ulsan College of Medicine , Seoul , Republic of Korea
| | - Soo Young Choi
- c Department of Biomedical Science and Research Institute for Bioscience and Biotechnology , Hallym University , Chunchon , Republic of Korea
| | - Seung-Ju Yang
- b Department of Biomedical Laboratory Science , Konyang University , Daejeon , Republic of Korea
| | - Sung-Woo Cho
- a Department of Biochemistry and Molecular Biology , University of Ulsan College of Medicine , Seoul , Republic of Korea
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1-(2,3-Dibenzimidazol-2-ylpropyl)-2-methoxybenzene Is a Syk Inhibitor with Anti-Inflammatory Properties. Molecules 2016; 21:508. [PMID: 27096863 PMCID: PMC6274291 DOI: 10.3390/molecules21040508] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/12/2016] [Accepted: 04/14/2016] [Indexed: 01/15/2023] Open
Abstract
Inflammation is the protective action of our bodies against external pathogens by recognition of pathogen-associated molecular patterns (PAMPs) via pattern recognition receptors (PRRs). Proper regulation of inflammatory responses is required to maintain our body’s homeostasis, as well as there are demands to develop proper acute or chronic inflammation. In this study, we elucidated the regulatory mechanism of NF-κB-mediated inflammatory responses by a novel compound, 1-(2,3-dibenzimidazol-2-ylpropyl)-2-methoxybenzene (DBMB). We found that DBMB suppressed inflammatory mediators, nitric oxide (NO) and prostaglandin E2 (PGE2), reacted to exposure to a number of toll like receptor (TLR) ligands. Such observations occurred following to decreased mRNA expression of several pro-inflammatory mediators, and such diminished mRNA levels were caused by inhibited transcriptional factor nuclear factor (NF)-κB, as evaluated by luciferase reporter assay and molecular biological approaches. To find the potential targets of DBMB, we screened phosphorylated forms of NF-κB signal molecules: inhibitor of κBα (IκBα), IκB kinase (IKK)α/β, Akt, 3-phosphoinositide dependent protein kinase-1 (PDK1), p85, and spleen tyrosine kinase (Syk). We found that DBMB treatment could suppress signal transduction through these molecules. Additionally, we conducted in vitro kinase assays using immunoprecipitated Syk and its substrate, p85. Consequently, we could say that DBMB clearly suppressed the kinase activity of Syk kinase activity. Together, our results demonstrate that synthetic DBMB has an effect on the inflammatory NF-κB signaling pathway and suggest the potential for clinical use in the treatment of inflammatory diseases.
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Jeong SJ, Kim OS, Yoo SR, Seo CS, Kim Y, Shin HK. Anti‑inflammatory and antioxidant activity of the traditional herbal formula Gwakhyangjeonggi‑san via enhancement of heme oxygenase‑1 expression in RAW264.7 macrophages. Mol Med Rep 2016; 13:4365-71. [PMID: 27052497 DOI: 10.3892/mmr.2016.5084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 12/21/2015] [Indexed: 12/27/2022] Open
Abstract
Gwakhyangjeonggi‑san (GHJGS) is a mixture of herbal plants, including Agastache rugosa, Perilla frutescens, Angelica dahurica, Areca catechu, Poria cocos, Magnolia officinalis, Atractylodes macrocephala, Citrus reticulata, Pinellia ternata, Platycodon grandiflorum, Glycyrrhiza uralensis, Ziziphus jujuba and Zingiber officinale. GHJGS has been used for treating diarrhea‑predominant irritable bowel syndrome in traditional Korean medicine. In the present study, the anti‑inflammatory and antioxidant effects of GHJGS were investigated using the RAW 264.7 murine macrophage cell line. GHJGS significantly reduced production of the proinflammatory cytokines, tumor necrosis factor‑α, interleukin‑6 and prostaglandin E2 in lipopolysaccharide (LPS)‑stimulated macrophages. GHJGS markedly suppressed LPS‑induced phosphorylation of mitogen‑activated protein kinases, whereas it had no effect on nuclear factor‑κB activation. Furthermore, GHJGS enhanced expression of heme oxygenase‑1 and prevented the generation of reactive oxygen species in RAW 264.7 cells. These results indicate that GHJGS is a viable therapeutic agent against inflammation and oxidative stress‑associated disorders.
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Affiliation(s)
- Soo-Jin Jeong
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Ohn-Soon Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Sae-Rom Yoo
- K‑herb Research Center, Korea Institute of Oriental Medicine, Daejeon, Chungcheong 34054, Republic of Korea
| | - Chang-Seob Seo
- K‑herb Research Center, Korea Institute of Oriental Medicine, Daejeon, Chungcheong 34054, Republic of Korea
| | - Yeji Kim
- K‑herb Research Center, Korea Institute of Oriental Medicine, Daejeon, Chungcheong 34054, Republic of Korea
| | - Hyeun-Kyoo Shin
- K‑herb Research Center, Korea Institute of Oriental Medicine, Daejeon, Chungcheong 34054, Republic of Korea
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Pérez Del Palacio J, Díaz C, de la Cruz M, Annang F, Martín J, Pérez-Victoria I, González-Menéndez V, de Pedro N, Tormo JR, Algieri F, Rodriguez-Nogales A, Rodríguez-Cabezas ME, Reyes F, Genilloud O, Vicente F, Gálvez J. High-Throughput Screening Platform for the Discovery of New Immunomodulator Molecules from Natural Product Extract Libraries. ACTA ACUST UNITED AC 2016; 21:567-78. [PMID: 26962874 DOI: 10.1177/1087057116635517] [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: 10/31/2015] [Accepted: 02/05/2016] [Indexed: 11/15/2022]
Abstract
It is widely accepted that central nervous system inflammation and systemic inflammation play a significant role in the progression of chronic neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease, neurotropic viral infections, stroke, paraneoplastic disorders, traumatic brain injury, and multiple sclerosis. Therefore, it seems reasonable to propose that the use of anti-inflammatory drugs might diminish the cumulative effects of inflammation. Indeed, some epidemiological studies suggest that sustained use of anti-inflammatory drugs may prevent or slow down the progression of neurodegenerative diseases. However, the anti-inflammatory drugs and biologics used clinically have the disadvantage of causing side effects and a high cost of treatment. Alternatively, natural products offer great potential for the identification and development of bioactive lead compounds into drugs for treating inflammatory diseases with an improved safety profile. In this work, we present a validated high-throughput screening approach in 96-well plate format for the discovery of new molecules with anti-inflammatory/immunomodulatory activity. The in vitro models are based on the quantitation of nitrite levels in RAW264.7 murine macrophages and interleukin-8 in Caco-2 cells. We have used this platform in a pilot project to screen a subset of 5976 noncytotoxic crude microbial extracts from the MEDINA microbial natural product collection. To our knowledge, this is the first report on an high-throughput screening of microbial natural product extracts for the discovery of immunomodulators.
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Affiliation(s)
- José Pérez Del Palacio
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Caridad Díaz
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Mercedes de la Cruz
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Frederick Annang
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Jesús Martín
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Ignacio Pérez-Victoria
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Víctor González-Menéndez
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Nuria de Pedro
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - José R Tormo
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Francesca Algieri
- CIBER-EHD, Department of Pharmacology, ibs. Granada, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Alba Rodriguez-Nogales
- CIBER-EHD, Department of Pharmacology, ibs. Granada, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - M Elena Rodríguez-Cabezas
- CIBER-EHD, Department of Pharmacology, ibs. Granada, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Parque Tecnológico Ciencias de la Salud, Avenida del Conocimiento 34, 18016, Granada, Spain
| | - Julio Gálvez
- CIBER-EHD, Department of Pharmacology, ibs. Granada, Center for Biomedical Research (CIBM), University of Granada, Granada, Spain
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2-Cyclopropylimino-3-methyl-1,3-thiazoline hydrochloride alters lipopolysaccharide-induced proinflammatory cytokines and neuronal morphology in mouse fetal brain. Neuropharmacology 2016; 102:32-41. [DOI: 10.1016/j.neuropharm.2015.10.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/01/2015] [Accepted: 10/26/2015] [Indexed: 11/17/2022]
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41
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Yu T, Yang Y, Kwak YS, Song GG, Kim MY, Rhee MH, Cho JY. Ginsenoside Rc from Panax ginseng exerts anti-inflammatory activity by targeting TANK-binding kinase 1/interferon regulatory factor-3 and p38/ATF-2. J Ginseng Res 2016; 41:127-133. [PMID: 28413316 PMCID: PMC5386129 DOI: 10.1016/j.jgr.2016.02.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 01/30/2016] [Accepted: 02/02/2016] [Indexed: 12/11/2022] Open
Abstract
Background Ginsenoside Rc (G-Rc) is one of the major protopanaxadiol-type saponins isolated from Panax ginseng, a well-known medicinal herb with many beneficial properties including anticancer, anti-inflammatory, antiobesity, and antidiabetic effects. In this study, we investigated the effects of G-Rc on inflammatory responses in vitro and examined the mechanisms of these effects. Methods The in vitro inflammation system used lipopolysaccharide-treated macrophages, tumor necrosis factor-α/interferon-γ-treated synovial cells, and HEK293 cells transfected with various inducers of inflammation. Results G-Rc significantly inhibited the expression of macrophage-derived cytokines, such as tumor necrosis factor-α and interleukin-1β. G-Rc also markedly suppressed the activation of TANK-binding kinase 1/IκB kinase ε/interferon regulatory factor-3 and p38/ATF-2 signaling in activated RAW264.7 macrophages, human synovial cells, and HEK293 cells. Conclusion G-Rc exerts its anti-inflammatory actions by suppressing TANK-binding kinase 1/IκB kinase ε/interferon regulatory factor-3 and p38/ATF-2 signaling.
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Affiliation(s)
- Tao Yu
- Department of Genetic Engineering, Sungkyunkwan University, Suwon, Korea.,Institute of Translational Medicine, Qingdao University, Qingdao, China
| | - Yanyan Yang
- Department of Genetic Engineering, Sungkyunkwan University, Suwon, Korea.,Institute of Translational Medicine, Qingdao University, Qingdao, China
| | - Yi-Seong Kwak
- Korean Ginseng Corporation, Central Research Institute, Daejeon, Korea
| | - Gwan Gyu Song
- Division of Rheumatology, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Mi-Yeon Kim
- Department of Bioinformatics and Life Science, Soongsil University, Seoul, Korea
| | - Man Hee Rhee
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon, Korea
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Ju SM, Youn GS, Cho YS, Choi SY, Park J. Celastrol ameliorates cytokine toxicity and pro-inflammatory immune responses by suppressing NF-κB activation in RINm5F beta cells. BMB Rep 2015; 48:172-7. [PMID: 25059279 PMCID: PMC4453024 DOI: 10.5483/bmbrep.2015.48.3.147] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Indexed: 01/09/2023] Open
Abstract
Upregulation of pro-inflammatory mediators contributes to β-cell destruction and enhanced infiltration of immune cells into pancreatic islets during development of type 1 diabetes mellitus. In this study, we examined the regulatory effects and the mechanisms of action of celastrol against cytotoxicity and pro-inflammatory immune responses in the RINm5F rat pancreatic β-cell line stimulated with a combination of interleukin-1 beta, tumor necrosis factor-alpha, and interferon-γ. Celastrol significantly restored cytokine-induced cell death and significantly inhibited cytokine-induced nitric oxide production. In addition, the protective effect of celastrol was correlated with a reduction in pro-inflammatory mediators, such as inducible nitric oxide synthase, cyclooxygenase-2, and CC chemokine ligand 2. Furthermore, celastrol significantly suppressed cytokine-induced signaling cascades leading to nuclear factor kappa B (NF-κB) activation, including IκB-kinase (IKK) activation, IκB degradation, p65 phosphorylation, and p65 DNA binding activity. These results suggest that celastrol may exert its cytoprotective activity by suppressing cytokine-induced expression of pro-inflammatory mediators by inhibiting activation of NF-κB in RINm5F cells. [BMB Reports 2015; 48(3): 172-177]
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Affiliation(s)
- Sung Mi Ju
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Yoon Shin Cho
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
| | - Jinseu Park
- Department of Biomedical Science and Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 200-702, Korea
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43
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Effects of low doses of Tat-PIM2 protein against hippocampal neuronal cell survival. J Neurol Sci 2015; 358:226-35. [DOI: 10.1016/j.jns.2015.08.1549] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/17/2015] [Accepted: 08/31/2015] [Indexed: 02/06/2023]
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The azetidine derivative, KHG26792 protects against ATP-induced activation of NFAT and MAPK pathways through P2X7 receptor in microglia. Neurotoxicology 2015; 51:198-206. [PMID: 26522449 DOI: 10.1016/j.neuro.2015.10.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/21/2015] [Accepted: 10/26/2015] [Indexed: 01/01/2023]
Abstract
Azetidine derivatives are of interest for drug development because they may be useful therapeutic agents. However, their mechanisms of action remain to be completely elucidated. Here, we have investigated the effects of 3-(naphthalen-2-yl(propoxy)methyl)azetidine hydrochloride (KHG26792) on ATP-induced activation of NFAT and MAPK through P2X7 receptor in the BV-2 mouse microglial cell line. KHG26792 decreased ATP-induced TNF-α release from BV-2 microglia by suppressing, at least partly, P2X7 receptor stimulation. KHG26792 also inhibited the ATP-induced increase in IL-6, PGE2, NO, ROS, CXCL2, and CCL3. ATP induced NFAT activation through P2X7 receptor, with KHG26792 reducing the ATP-induced NFAT activation. KHG26792 inhibited an ATP-induced increase in iNOS protein and ERK phosphorylation. KHG26792 prevented an ATP-induced increase in MMP-9 activity through the P2X7 receptor as a result of degradation of TIMP-1 by cathepsin B. Our data provide mechanistic insights into the role of KHG26792 in the inhibition of TNF-α produced via P2X7 receptor-mediated activation of NFAT and MAPK pathways in ATP-treated BV-2 cells. This study highlights the potential use of KHG26792 as a therapeutic agent for the many diseases of the CNS related to activated microglia.
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Kim MJ, Park M, Kim DW, Shin MJ, Son O, Jo HS, Yeo HJ, Cho SB, Park JH, Lee CH, Kim DS, Kwon OS, Kim J, Han KH, Park J, Eum WS, Choi SY. Transduced PEP-1-PON1 proteins regulate microglial activation and dopaminergic neuronal death in a Parkinson's disease model. Biomaterials 2015; 64:45-56. [DOI: 10.1016/j.biomaterials.2015.06.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 06/09/2015] [Accepted: 06/11/2015] [Indexed: 01/01/2023]
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46
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Hwang YJ, Song J, Kim HR, Hwang KA. Oleanolic acid regulates NF-κB signaling by suppressing MafK expression in RAW 264.7 cells. BMB Rep 2015; 47:524-9. [PMID: 25059280 PMCID: PMC4206729 DOI: 10.5483/bmbrep.2014.47.9.149] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress and inflammation are common to many pathological conditions. Defense mechanisms protect cells from oxidative stress, but can become over-activated following injury and inflammation. NF-κB and Nrf2 transcription factors regulate proinflammatory and antioxidant gene expression, respectively. Studies have shown that many natural dietary compounds regulate NF-κB and Nrf2, preventing inflammation and oxidative stress. Here, we report major compounds of Prunella vulgaris var. lilacina such as rosmarinic acid, oleanolic acid, ursolic acid and caffeic acid as a potential therapeutic for oxidative stress and inflammation. The major compounds exhibited high anti-inflammatory activity, inhibiting NO, PGE2 production, NF-κB expression and activating Nrf2 expression. In addition, we examined the effect of major compounds on MafK expression. Among the compounds, oleanolic acid significantly decreased MafK expression and MafK-mediated p65 acetylation. These findings suggest that oleanolic acid as NF-κB inhibitors can potentially be used in therapeutic applications for the treatment of oxidative stressnduced diseases. [BMB Reports 2014; 47(9): 524-529]
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Affiliation(s)
- Yu-Jin Hwang
- Department of Agrofood Resources, National Academy of Agricultural Science, RDA, Wanju 565-850, Korea
| | - Jaewhan Song
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul 120-749, Korea
| | - Haeng-Ran Kim
- Department of Agrofood Resources, National Academy of Agricultural Science, RDA, Wanju 565-850, Korea
| | - Kyung-A Hwang
- Department of Agrofood Resources, National Academy of Agricultural Science, RDA, Wanju 565-850, Korea
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47
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Kim EA, Cho CH, Kim DW, Choi SY, Huh JW, Cho SW. Antioxidative effects of ethyl 2-(3-(benzo[d]thiazol-2-yl)ureido)acetate against amyloid β-induced oxidative cell death via NF-κB, GSK-3β and β-catenin signaling pathways in cultured cortical neurons. Free Radic Res 2015; 49:411-21. [PMID: 25747393 DOI: 10.3109/10715762.2015.1007048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We have previously shown that 2-(3-(benzo[d]thiazol-2-yl)ureido)acetate (KHG21834) attenuates amyloid beta(Aβ)25-35-induced apoptotic death and shows anti-inflammatory activity against Aβ25-35-induced microglial activation. However, antioxidative effects of KHG21834 against Aβ-induced oxidative stress have not yet been reported. In the present study, we investigated the antioxidative function of KHG21834 in primary cultured cortical neurons, to expand the potential therapeutic efficacy of KHG21834. Pretreatment with KHG21834 protected against Aβ-induced neuronal cell death and mitochondrial damage, and significantly restored GSH levels and the activities of catalase, superoxide dismutase, and glutathione peroxidase, and also suppressed the production of reactive oxygen species and protein oxidation. These results imply that KHG21834 may play a role in cellular defense mechanisms against Aβ-induced oxidative stress in cultured cortical neurons. Furthermore, KHG21834 significantly attenuated the effects of Aβ treatment on levels of NF-κB, β-catenin, and GSK-3β proteins in cortical neurons. Taken together, our results suggest that the antioxidant effects of KHG21834 may result at least in part from its ability to regulate the NF-κB, β-catenin, and GSK-3β signaling pathways. To our knowledge, this is the first report showing that KHG21834 significantly attenuates Aβ25-35-induced oxidative stress in primary cortical neurons, and provides novel insights into KHG21834 as a possible therapeutic agent for the treatment of Aβ-mediated neurotoxicity involving oxidative stress.
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Affiliation(s)
- E-A Kim
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine , Seoul , Korea
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48
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Dung TTM, Lee J, Kim E, Yoo BC, Ha VT, Kim Y, Yoon DH, Hong S, Baek KS, Sung NY, Kim TW, Kim JH, Cho JY. Anti-inflammatory Activities of Gouania leptostachya
Methanol Extract and its Constituent Resveratrol. Phytother Res 2014; 29:381-92. [DOI: 10.1002/ptr.5262] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/05/2014] [Accepted: 10/25/2014] [Indexed: 11/09/2022]
Affiliation(s)
- To Thi Mai Dung
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Jongsung Lee
- Department of Dermatological Health Management; Eulji University; Seongnam 461-713 Korea
| | - Eunji Kim
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Byong Chul Yoo
- Research Institute and Hospital; National Cancer Center; Goyang 410-769 Republic of Korea
| | - Van Thai Ha
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Yong Kim
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Deok Hyo Yoon
- Department of Biochemistry; Kangwon National University; Chuncehon 200-701 Korea
| | - Sungyoul Hong
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Kwang-Soo Baek
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Nak Yoon Sung
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
| | - Tae Woong Kim
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
- Department of Biochemistry; Kangwon National University; Chuncehon 200-701 Korea
| | - Jong-Hoon Kim
- College of Veterinary Medicine; Chonbuk National University; Jeonju 561-756 Korea
| | - Jae Youl Cho
- Department of Genetic Engineering; Sungkyunkwan University; Suwon 440-746 Korea
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