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Sivadas N, Kaul G, Akhir A, Shukla M, Govind MG, Dan M, Radhakrishnan KV, Chopra S. Naturally Derived Malabaricone B as a Promising Bactericidal Candidate Targeting Multidrug-Resistant Staphylococcus aureus also Possess Synergistic Interactions with Clinical Antibiotics. Antibiotics (Basel) 2023; 12:1483. [PMID: 37887184 PMCID: PMC10604362 DOI: 10.3390/antibiotics12101483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/22/2023] [Accepted: 09/23/2023] [Indexed: 10/28/2023] Open
Abstract
The emergence of multidrug-resistant (MDR) superbugs underlines the urgent need for innovative treatment options to tackle resistant bacterial infections. The clinical efficacy of natural products directed our efforts towards developing new antibacterial leads from naturally abundant known chemical structures. The present study aimed to explore an unusual class of phenylacylphenols (malabaricones) from Myristicamalabarica as antibacterial agents. In vitro antibacterial activity was determined via broth microdilution, cell viability, time-kill kinetics, biofilm eradication, intracellular killing, and checkerboard assays. The efficacy was evaluated in vivo in murine neutropenic thigh and skin infection models. Confocal and SEM analyses were used for mechanistic studies. Among the tested isolates, malabaricone B (NS-7) demonstrated the best activity against S. aureus with a favorable selectivity index and concentration-dependent, rapid bactericidal killing kinetics. It displayed equal efficacy against MDR clinical isolates of S. aureus and Enterococci, efficiently clearing S. aureus in intracellular and biofilm tests, with no detectable resistance. In addition, NS-7 synergized with daptomycin and gentamicin. In vivo, NS-7 exhibited significant efficacy against S. aureus infection. Mechanistically, NS-7 damaged S. aureus membrane integrity, resulting in the release of extracellular ATP. The results indicated that NS-7 can act as a naturally derived bactericidal drug lead for anti-staphylococcal therapy.
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Affiliation(s)
- Neethu Sivadas
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
| | - Grace Kaul
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Abdul Akhir
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Manjulika Shukla
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
| | - Murugan Govindakurup Govind
- Department of Plant Genetics Resource, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram 695562, India
| | - Mathew Dan
- Department of Plant Genetics Resource, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, Thiruvananthapuram 695562, India
| | - Kokkuvayil Vasu Radhakrishnan
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram 695019, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
| | - Sidharth Chopra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India;
- Division of Microbiology, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow 226031, India; (A.A.)
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Sun X, Liu S, Cai J, Yang M, Li C, Tan M, He B. Mitochondrial Methionyl-tRNA Formyltransferase Deficiency Alleviates Metaflammation by Modulating Mitochondrial Activity in Mice. Int J Mol Sci 2023; 24:ijms24065999. [PMID: 36983072 PMCID: PMC10051599 DOI: 10.3390/ijms24065999] [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: 01/30/2023] [Revised: 03/03/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Various studies have revealed the association of metabolic diseases with inflammation. Mitochondria are key organelles involved in metabolic regulation and important drivers of inflammation. However, it is uncertain whether the inhibition of mitochondrial protein translation results in the development of metabolic diseases, such that the metabolic benefits related to the inhibition of mitochondrial activity remain unclear. Mitochondrial methionyl-tRNA formyltransferase (Mtfmt) functions in the early stages of mitochondrial translation. In this study, we reveal that feeding with a high-fat diet led to the upregulation of Mtfmt in the livers of mice and that a negative correlation existed between hepatic Mtfmt gene expression and fasting blood glucose levels. A knockout mouse model of Mtfmt was generated to explore its possible role in metabolic diseases and its underlying molecular mechanisms. Homozygous knockout mice experienced embryonic lethality, but heterozygous knockout mice showed a global reduction in Mtfmt expression and activity. Moreover, heterozygous mice showed increased glucose tolerance and reduced inflammation, which effects were induced by the high-fat diet. The cellular assays showed that Mtfmt deficiency reduced mitochondrial activity and the production of mitochondrial reactive oxygen species and blunted nuclear factor-κB activation, which, in turn, downregulated inflammation in macrophages. The results of this study indicate that targeting Mtfmt-mediated mitochondrial protein translation to regulate inflammation might provide a potential therapeutic strategy for metabolic diseases.
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Affiliation(s)
- Xiaoxiao Sun
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Suyuan Liu
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiangxue Cai
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Miaoxin Yang
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Chenxuan Li
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Meiling Tan
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
| | - Bin He
- Key Laboratory of Animal Physiology & Biochemistry, Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
- MOE Joint International Research Laboratory of Animal Health & Food Safety, Nanjing Agricultural University, Nanjing 210095, China
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3
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Therapeutic potential of Indian medicinal plants against Leishmania donovani: a review. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2023. [DOI: 10.1007/s43538-023-00153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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4
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Patwardhan RS, Kundu K, Purohit V, Kumar BK, Singh B, Thoh M, Undavia K, Bhilwade HN, Nayak SK, Sharma D, Sandur SK. Malabaricone C, a constituent of spice Myristica malabarica, exhibits anti-inflammatory effects via modulation of cellular redox. J Biosci 2023. [PMID: 36971326 PMCID: PMC10040911 DOI: 10.1007/s12038-023-00329-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
The present study primarily focuses on the efficacy of Malabaricone C (Mal C) as an anti-inflammatory agent. Mal C inhibited mitogen-induced T-cell proliferation and cytokine secretion. Mal C significantly reduced cellular thiols in lymphocytes. N-acetyl cysteine (NAC) restored cellular thiol levels and abrogated Mal C-mediated inhibition of T-cell proliferation and cytokine secretion. Physical interaction between Mal C and NAC was evinced from HPLC and spectral analysis. Mal C treatment significantly inhibited concanavalin A-induced phosphorylation of ERK/JNK and DNA binding of NF-κB. Administration of Mal C to mice suppressed T-cell proliferation and effector functions ex vivo. Mal C treatment did not alter the homeostatic proliferation of T-cells in vivo but completely abrogated acute graft-versus-host disease (GvHD)-associated morbidity and mortality. Our studies indicate probable use of Mal C for prophylaxis and treatment of immunological disorders caused due to hyper-activation of T-cells.
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Affiliation(s)
- Raghavendra S Patwardhan
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Kshama Kundu
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Vaitashi Purohit
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Binita Kislay Kumar
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Beena Singh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Maikho Thoh
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Khushboo Undavia
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Hari N Bhilwade
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Sandip K Nayak
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
| | - Deepak Sharma
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
- Homi Bhabha National Institute, Mumbai, 400094 India
| | - Santosh K Sandur
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085 India
- Homi Bhabha National Institute, Mumbai, 400094 India
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5
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Dong X, Li C, Zhang M, Zhao Y, Zhao Z, Li W, Zhang X. Multifunctional injectable hydrogel for effective promotion of cartilage regeneration and protection against osteoarthritis: combined chondroinductive, antioxidative and anti-inflammatory strategy. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2022; 23:361-375. [PMID: 35693891 PMCID: PMC9176362 DOI: 10.1080/14686996.2022.2076568] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/02/2022] [Accepted: 05/08/2022] [Indexed: 05/31/2023]
Abstract
The regeneration of the articular cartilage defects is characterized by the improvement in the quality of the repaired tissue and the reduction in the potential development of perifocal osteoarthritis (OA). Usually, the injection of dexamethasone (Dex) in the OA joints slows down the progression of inflammation and relieves pain. However, the anti-inflammatory Dex injected in the joint cavity is rapidly cleared, leading to a poor therapeutic effect. Multifunctional hydrogels with simultaneous chondrogenic differentiation, antioxidative, and anti-inflammatory capacities may represent a promising solution. Therefore, in this work, a novel injectable hydrogel based on double cross-linking of Schiff base bonds and coordination of catechol-Fe was developed. The obtained hydrogel (Gel-DA/DOHA/DMON@Dex@Fe) possessed molding performance in situ, excellent mechanical strength, controllable biodegradability, the on-demand release of the drug, and biocompatibility. The hydrogel system stimulated the HIF-1α signaling pathway and suppressed inflammation thanks to the introduction of DMON@Fe, consequently facilitating chondrogenic differentiation. The synergistic anti-inflammatory effect together with the induction of chondrogenesis by Dex-loaded Gel-DA/DOHA/DMON@Fe hydrogel allowed the promotion of cartilage repair, as demonstrated by in vivo experiments. Hence, the proposed multifunctional scaffold provides a promising advancement in articular cartilage tissue engineering and may have great prospects in the prevention of OA.
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Affiliation(s)
- Xueping Dong
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, PR China
- School of Clinical Medicine, Weifang Medical University, Weifang, PR China
| | - Canfeng Li
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, PR China
| | - Mengdi Zhang
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, PR China
| | - YiKun Zhao
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, PR China
| | - Zhen Zhao
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, PR China
| | - Wenqiang Li
- Engineering Technology Research Center for Sports Assistive Devices of Guangdong, Guangzhou Sport University, Guangzhou, PR China
| | - Xintao Zhang
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, PR China
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Basak M, Mahata T, Chakraborti S, Kumar P, Bhattacharya B, Bandyopadhyay SK, Das M, Stewart A, Saha S, Maity B. Malabaricone C Attenuates Nonsteroidal Anti-Inflammatory Drug-Induced Gastric Ulceration by Decreasing Oxidative/Nitrative Stress and Inflammation and Promoting Angiogenic Autohealing. Antioxid Redox Signal 2020; 32:766-784. [PMID: 31830804 PMCID: PMC7071091 DOI: 10.1089/ars.2019.7781] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aims: Nonsteroidal anti-inflammatory drugs (NSAIDs), among the most commonly used drugs worldwide, are associated with gastrointestinal (GI) complications that severely limit the clinical utility of this essential class of pain medications. Here, we mechanistically dissect the protective impact of a natural product, malabaricone C (Mal C), on NSAID-induced gastropathy. Results: Mal C dose dependently diminished erosion of the stomach lining and inflammation in mice treated with NSAIDs with the protective impact translating to improvement in survival. By decreasing oxidative and nitrative stress, Mal C treatment prevented NSAID-induced mitochondrial dysfunction and cell death; nuclear factor κ-light-chain enhancer of activated B cell induction, release of proinflammatory cytokines and neutrophil infiltration; and disruptions in the vascular endothelial growth factor/endostatin balance that contributes to mucosal autohealing. Importantly, Mal C failed to impact the therapeutic anti-inflammatory properties of multiple NSAIDs in a model of acute inflammation. In all assays tested, Mal C proved as or more efficacious than the current first-line therapy for NSAID-dependent GI complications, the proton pump inhibitor omeprazole. Innovation: Given that omeprazole-mediated prophylaxis is, itself, associated with a shift in NSAID-driven GI complications from the upper GI to the lower GI system, there is a clear and present need for novel therapeutics aimed at ameliorating NSAID-induced gastropathy. Mal C provided significant protection against NSAID-induced gastric ulcerations impacting multiple critical signaling cascades contributing to inflammation, cell loss, extracellular matrix degradation, and angiogenic autohealing. Conclusion: Thus, Mal C represents a viable lead compound for the development of novel gastroprotective agents.
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Affiliation(s)
- Madhuri Basak
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Lucknow, India
| | - Tarun Mahata
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Lucknow, India
| | - Sreemoyee Chakraborti
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Lucknow, India
| | - Pranesh Kumar
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, India
| | - Bolay Bhattacharya
- Department of Pharmacy, Geethanjali College of Pharmacy, Cheeryala, India
| | | | - Madhusudan Das
- Department of Zoology, University of Calcutta, Kolkata, India
| | - Adele Stewart
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Jupiter, Florida
| | - Sudipta Saha
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, India
| | - Biswanath Maity
- Centre of Biomedical Research, Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus, Lucknow, India
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El-Alfy AT, Abourashed EA, Patel C, Mazhari N, An H, Jeon A. Phenolic compounds from nutmeg (Myristica fragrans Houtt.) inhibit the endocannabinoid-modulating enzyme fatty acid amide hydrolase. ACTA ACUST UNITED AC 2019; 71:1879-1889. [PMID: 31595522 DOI: 10.1111/jphp.13174] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/14/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVES The study aimed to identify nutmeg compounds that indirectly interact with the endocannabinoid system through inhibition of the fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL) enzymes. METHODS Thirteen compounds were screened for FAAH and MAGL inhibition. Compounds demonstrating significant FAAH inhibition were evaluated to determine the halfmaximal inhibitory concentration (IC50 ). The most potent compound was investigated in the elevated plus maze (EPM) rodent anxiety model. KEY FINDINGS Three compounds, licarin A (9), 5'-methoxylicarin A (8) and malabaricone C (6) were most active in inhibiting FAAH with IC50 of 7.02 μm ± 2.02, 4.57 μm ± 0.66 and 38.29 μm ± 6.18, respectively. None of the purified compounds showed significant MAGL inhibition. Because of its relative high potency and selectivity, compound 8 was further evaluated in the EPM animal model of anxiety. The compound showed significant increase in number of open arm entries (P < 0.05) when administered at 120 mg/kg dose. No effect was observed on the locomotor activity. CONCLUSIONS Results collected introduce active nutmeg compounds as potential leads for further development. Of the three compounds, 8 possesses highest potency and FAAH selectivity as well as anxiolytic activity. Furthermore, in vivo testing in appropriate behavioural animal paradigms is warranted.
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Affiliation(s)
- Abir T El-Alfy
- School of Pharmacy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ehab A Abourashed
- School of Pharmacy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Christina Patel
- College of Pharmacy, Chicago State University, Chicago, IL, USA
| | | | - HeaRe An
- College of Pharmacy, Chicago State University, Chicago, IL, USA
| | - Andrew Jeon
- College of Pharmacy, Chicago State University, Chicago, IL, USA
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8
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Li X, Guo S, Xiong XK, Peng BY, Huang JM, Chen MF, Wang FY, Wang JN. Combination of quercetin and cisplatin enhances apoptosis in OSCC cells by downregulating xIAP through the NF-κB pathway. J Cancer 2019; 10:4509-4521. [PMID: 31528215 PMCID: PMC6746132 DOI: 10.7150/jca.31045] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/24/2019] [Indexed: 12/28/2022] Open
Abstract
While cisplatin is a first-line chemotherapeutic drug commonly used to treat patients with oral squamous cell carcinoma (OSCC), the cisplatin-resistance poses a major challenge for its clinical application. Recent studies have shown that quercetin, a natural flavonoid found in various plants and foods possesses an anti-cancer effect. The following study examined the combined effect of quercetin and cisplatin on OSCC apoptosis in vitro and in vivo (using a mice tumor model). We found that quercetin promotes cisplatin-induced apoptosis in human OSCC (cell lines Tca-8113 and SCC-15) by down-regulating NF-κB. Pretreatment of cancer cells with quercetin inhibited the phosphorylation Akt and IKKβ, and led to the suppression of NF-κB and anti-apoptotic protein xIAP. In addition, we observed that the pretreatment of cancer cells with quercetin improves extrinsic and intrinsic apoptosis by activating caspase-8 and caspase-9, respectively. Our in vivo data also indicated that the combination of quercetin and cisplatin may inhibit the xenograft growth in mice. To sum up, our results provide a new evidence for the application of quercetin and cisplatin in OSCC therapy.
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Affiliation(s)
- Xin Li
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, Dashi, Panyu District, Guangzhou, Guangdong Province, P.R. China, 511430
| | - Shu Guo
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou, Guangdong Province, P.R. China, 510655
| | - Xi-Kun Xiong
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, Dashi, Panyu District, Guangzhou, Guangdong Province, P.R. China, 511430
| | - Bao-Ying Peng
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, Dashi, Panyu District, Guangzhou, Guangdong Province, P.R. China, 511430
| | - Jun-Ming Huang
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, Dashi, Panyu District, Guangzhou, Guangdong Province, P.R. China, 511430
| | - Mei-Fen Chen
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, Dashi, Panyu District, Guangzhou, Guangdong Province, P.R. China, 511430
| | - Feng-Yan Wang
- Guangdong Provincial Center for Disease Control and Prevention, 160 Qunxian Road, Dashi, Panyu District, Guangzhou, Guangdong Province, P.R. China, 511430
| | - Jian-Ning Wang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, 56, Ling Yuan Xi Road, Guangzhou, Guangdong Province, P.R. China, 510055
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9
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Cai J, Zhang J, Wu P, Yang W, Ye Q, Chen Q, Jiang C. Blocking LINC00152 suppresses glioblastoma malignancy by impairing mesenchymal phenotype through the miR-612/AKT2/NF-κB pathway. J Neurooncol 2018; 140:225-236. [DOI: 10.1007/s11060-018-2951-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 07/22/2018] [Indexed: 12/19/2022]
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10
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Abdallah M, Marzocco S, Adesso S, Zarrouk M, Guerfel M. Olive oil polyphenols extracts inhibit inflammatory markers in J774A.1 murine macrophages and scavenge free radicals. Acta Histochem 2018; 120:1-10. [PMID: 29128095 DOI: 10.1016/j.acthis.2017.10.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/16/2017] [Accepted: 10/16/2017] [Indexed: 01/18/2023]
Abstract
Here we evaluate the olive oil antiradical and anti-inflammatory potential through its polyphenols extracts and examine the influence of olive maturity on olive oil quality properties, polyphenols composition and biological potentials. Samples have been obtained from minor Tunisian olive cultivars (Chemchali, Fouji and Zarrazi) at different maturity indices. Principal quality properties were evaluated and polyphenols analysis was carried out by Folin Ciocalteu reagent and HPLC-UV-MS. Antiradical activity was examined by DPPH and FRAP scavenging assays while J774A.1 murine macrophages were used to evaluate anti-inflammatory potential by analyzing NO production with Griess reagent method and iNOS and COX-2 expression by cytofluorimetric analysis. Our results revealed that quality characteristics, total phenol content, as well as phenolic compound concentrations were significantly affected by the olive maturity levels. On the other hand, the polyphenols extracts showed an interesting radical scavenging capacity and a potential ability to inhibit inflammatory markers at 90% for NO release and 75% for iNOS expression. Thus, our study establishes that olive oil through its polyphenols extracts has a substantial antiradical and anti-inflammatory potential. Likewise a lot of attention should be attributed to olive ripening level in order to decide the optimum harvesting time.
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Affiliation(s)
- Marwa Abdallah
- University of Tunis El Manar, Faculty of sciences of Tunis, Campus University, Tunis 1060, Tunisia; Laboratory of biotechnology of olive, Center of biotechnology of Borj Cedria, BP 901, 2050, Hammam-Lif, Tunisia.
| | - Stefania Marzocco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Simona Adesso
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Mokhtar Zarrouk
- Laboratory of biotechnology of olive, Center of biotechnology of Borj Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Mokhtar Guerfel
- Laboratory of biotechnology of olive, Center of biotechnology of Borj Cedria, BP 901, 2050, Hammam-Lif, Tunisia
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11
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Ernst O, Vayttaden SJ, Fraser IDC. Measurement of NF-κB Activation in TLR-Activated Macrophages. Methods Mol Biol 2018; 1714:67-78. [PMID: 29177856 DOI: 10.1007/978-1-4939-7519-8_5] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nuclear factor kappa-B (NF-κB) is a key transcription factor in the regulation of the innate immune inflammatory response in activated macrophages. NF-κB functions as a homo- or hetero-dimer derived from one or more of the five members of the NF-κB family, and is activated through a well-studied process of stimulus-dependent inhibitor degradation, post-translational modification, nuclear translocation, and chromatin binding. Its activity is subject to multiple levels of feedback control through both inhibitor protein activity and direct regulation of NF-κB components. Many methods have been developed to measure and quantify NF-κB activation. In this chapter, we summarize available methods and present a protocol for image-based measurement of NF-κB activation in macrophages activated with microbial stimuli. Using either a stably expressed GFP-tagged fusion of the RelA NF-κB protein, or direct detection of endogenous RelA by immunocytochemistry, we describe data collection and analysis to quantify NF-κB cytosol to nuclear translocation in single cells using fluorescence microscopy.
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Affiliation(s)
- Orna Ernst
- Signaling Systems Unit, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Sharat J Vayttaden
- Signaling Systems Unit, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Iain D C Fraser
- Signaling Systems Unit, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA.
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12
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Dihydrofisetin exerts its anti-inflammatory effects associated with suppressing ERK/p38 MAPK and Heme Oxygenase-1 activation in lipopolysaccharide-stimulated RAW 264.7 macrophages and carrageenan-induced mice paw edema. Int Immunopharmacol 2017; 54:366-374. [PMID: 29202300 DOI: 10.1016/j.intimp.2017.11.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/23/2017] [Accepted: 11/27/2017] [Indexed: 12/27/2022]
Abstract
Dihydrofisetin is a flavanonol derived from some edible wild herbs and traditional Chinese medicines. It has been found to possess many biological activities. However, the anti-inflammatory potential of Dihydrofisetin remains uncharacterized. The aim of the present study was to investigate the anti-inflammatory activity of Dihydrofisetin and its underlying mechanisms. We found that Dihydrofisetin dose-dependently inhibited lipopolysaccharide-induced productions of nitric oxide (NO) and prostaglandin E2 (PGE2) in RAW 264.7 macrophages, probably through suppressing the protein expressions of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). The expressions of pro-inflammatory cytokines, such as tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6) and monocyte chemotactic protein (MCP-1) were also suppressed. We further demonstrated that Dihydrofisetin inhibited the activation of mitogen-activated protein kinases (MAPKs) pathway and phosphorylation of IκB-α whereas upregulated the expression of heme oxygenase-1 (HO-1). The in vivo carrageenan-induced mice paw edema study also indicated that treatment with 100 mg/kg of Dihydrofisetin could significantly inhibit carrageenan induced paw edema, decrease the levels of TNF-α, IL-6 and MDA, and increase the activity of GSH-Px in paw tissues. Taken together, Dihydrofisetin may act as a natural agent for treating inflammatory diseases by targeting MAPK, NF-κB and HO-1 pathways.
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Kundu K, Nayak SK. Total Syntheses of Malabaricones B and C via a Cross-Metathesis Strategy. JOURNAL OF NATURAL PRODUCTS 2017; 80:1776-1782. [PMID: 28581739 DOI: 10.1021/acs.jnatprod.6b01119] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The malabaricones A-D belong to the class of diarylnonanoids isolated from the Myristicaceae family of plants. Although malabaricone C displayed various interesting biological activities, its isolation remains tedious due to its close chemical similarity to malabaricones A, B, and D. Therefore, development of an efficient synthesis route has become essential to cater to the need of large amounts of malabaricone C for its pharmacological profiling. So far there is only one report of the synthesis of malabaricone C through a lengthy sequence of reactions. We have developed an efficient and short route for the syntheses of malabaricones B and C, which will also provide a convenient access to all other members of the malabaricone family. Synthesis of an important building block, ω-aryl heptyl bromide, employed in the synthesis was realized by adopting a cross-metathesis reaction as the key step.
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Affiliation(s)
- Kshama Kundu
- Bio-Organic Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
| | - Sandip K Nayak
- Bio-Organic Division, Bhabha Atomic Research Centre , Trombay, Mumbai 400085, India
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14
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Shu X, Zhang J, Wang Q, Xu Z, Yu T. Glutamine decreases intestinal mucosal injury in a rat model of intestinal ischemia-reperfusion by downregulating HMGB1 and inflammatory cytokine expression. Exp Ther Med 2016; 12:1367-1372. [PMID: 27588057 PMCID: PMC4998012 DOI: 10.3892/etm.2016.3468] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 06/17/2016] [Indexed: 12/25/2022] Open
Abstract
Intestinal ischemia-reperfusion (IR) is a common clinical pathophysiological process that is common in severe trauma, major surgery, and in post-resuscitation. Glutamine (Gln) reduces intestinal IR injury, however, its mechanism of action remains to be determined. High mobility group box 1 (HMGB1) protein, nuclear factor-κB (NF-κB), tumor necrosis factor-α (TNF-α), and interleukin-1 (IL-1) are mediators involved in the pathophysiology of intestinal IR injury. The aim of the present study was to investigate the effects of Gln on the intestinal mucosa of HMGB1 expression following IR to determine whether Gln relieved intestinal IR injury in the intestinal mucosal barrier. Forty-eight Sprague-Dawley rats were included in the present study. A model of intestinal ischemia-reperfusion injury was established by clamping the superior mesenteric artery of the rats to cause ischemia, followed by restoring blood flow. The animals were randomly divided into the control (n=24) and the Gln (n=24) groups for the experiments. The two groups of rats were given enteral nutrition with equal heat, nitrogen (heat 125.4 kJ/kg/day, nitrogen 0.2 g/kg/day). The Gln group of rats was fed with enteral nutrition plus 3% Gln, while the control rats were fed with enteral nutrition plus 3% soybean protein. After 7 days, the HMGB1 and plasma levels of NF-κB, TNF-α, IL-1, Gln, D-lactic acid and diamine oxidase (DAO) were observed. The changes in the morphology of intestinal mucosa were observed using electron microscopy. The plasma levels of TNF-α, IL-1, D-lactic acid and DAO, and the level of HMGB1, NF-κB, TNF-α and IL-1 in intestinal mucosa were significantly higher after IR (p<0.05), while the plasma level of Gln was lower in the two groups. In the control group, the plasma level of IL-1, TNF-α, DAO and D-lactic acid, and that of HMGB1, NF-κB, TNF-α, and IL-1 in intestinal mucosa were significantly higher, while the plasma level of Gln was lower than that prior to modeling on the 3rd and 7th days of the experiment. In the Gln group, the plasma level of IL-1, TNF-α, DAO and D-lactic acid, and that of HMGB1, NF-κB, IL-1, and TNF-α in intestinal mucosa were significantly higher (p<0.05) compared to the control on the 3rd and 7th days of the experiment. By contrast, after the 7th day, the plasma level of IL-1, TNF-α, DAO and D-lactic acid, and the level of HMGB1, NF-κB, IL-1, TNF-α in intestinal mucosa were significantly lower in the Gln group, while the plasma level of Gln was significantly higher than those in control group and after IR on the 7th day of the experiment. Additionally, the structure of villi and recess was damaged, villi was sparse and short, and considerable inflammatory cell influx embellished the lamina propria, lymphangiectasia, and edema after IR. On the 7th day, compared to after IR, the intestinal villi and recess structure of the controls was significantly restored in the Gln group. In conclusion, Gln repaired the intestinal mucosal injury in IR by reducing the expression of HMGB1 and inflammatory cytokines, and reducing the permeability of the intestinal mucosa.
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Affiliation(s)
- Xiaoliang Shu
- Department of Nutrition, Jinshan Hospital, Fudan University School of Medicine, Shanghai 201508, P.R. China
| | - Jian Zhang
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Qingxiu Wang
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Zengguang Xu
- Research Center for Translational Medicine, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
| | - Tingting Yu
- Department of Anesthesiology, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
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15
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Wu N, Xu W, Cao GY, Yang YF, Yang XB, Yang XW. The Blood-Brain Barrier Permeability of Lignans and Malabaricones from the Seeds of Myristica fragrans in the MDCK-pHaMDR Cell Monolayer Model. Molecules 2016; 21:134. [PMID: 26805808 PMCID: PMC6274353 DOI: 10.3390/molecules21020134] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/15/2016] [Accepted: 01/19/2016] [Indexed: 11/16/2022] Open
Abstract
The blood-brain barrier (BBB) permeability of twelve lignans and three phenolic malabaricones from the seeds of Myristica fragrans (nutmeg) were studied with the MDCK-pHaMDR cell monolayer model. The samples were measured by high-performance liquid chromatography and the apparent permeability coefficients (Papp) were calculated. Among the fifteen test compounds, benzonfuran-type, dibenzylbutane-type and arylnaphthalene-type lignans showed poor to moderate permeabilities with Papp values at 10−8–10−6 cm/s; those of 8-O-4′-neolignan and tetrahydrofuran-lignan were at 10−6–10−5 cm/s, meaning that their permeabilities are moderate to high; the permeabilities of malabaricones were poor as their Papp values were at 10−8–10−7 cm/s. To 5-methoxy-dehydrodiisoeugenol (2), erythro-2-(4-allyl-2,6-dimethoxyphenoxy)-1-(3,4-dimethoxyphenyl)-propan-1-ol acetate (6), verrucosin (8), and nectandrin B (9), an efflux way was involved and the main transporter for 6, 8 and 9 was demonstrated to be P-glycoprotein. The time and concentration dependency experiments indicated the main transport mechanism for neolignans dehydrodiisoeugenol (1), myrislignan (7) and 8 was passive diffusion. This study summarized the relationship between the BBB permeability and structure parameters of the test compounds, which could be used to preliminarily predict the transport of a compound through BBB. The results provide a significant molecular basis for better understanding the potential central nervous system effects of nutmeg.
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Affiliation(s)
- Ni Wu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Wei Xu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Gui-Yun Cao
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Yan-Fang Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Xin-Bao Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
| | - Xiu-Wei Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing 100191, China.
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16
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Yan Y, Xin A, Liu Q, Huang H, Shao Z, Zang Y, Chen L, Sun Y, Gao H. Induction of ROS generation and NF-κB activation in MARC-145 cells by a novel porcine reproductive and respiratory syndrome virus in Southwest of China isolate. BMC Vet Res 2015; 11:232. [PMID: 26358082 PMCID: PMC4565009 DOI: 10.1186/s12917-015-0480-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 07/13/2015] [Indexed: 01/06/2023] Open
Abstract
Background Porcine reproductive and respiratory syndrome virus (PRRSV) is the cause of an economically important swine disease that has devastated the swine industry since the late 1980s. The aim of the present study was to investigate the interaction between reactive oxygen species (ROS) and NF-κB by PRRSV infection. Results We isolated the local strain of PRRSV from southwest China, designated YN-2011, then sequenced and analyzed the genome. YN-2011 was then used to evaluate the interaction of ROS and NF-κB. In PRRSV infected MARC-145 cells, there was a time-dependent increase in ROS and Maleic Dialdehyde (MDA). Accordingly, NF-κB activation was also increased as PRRSV infection progressed. Degradation of IκB mRNA was detected late in PRRSV infection, and overexpression of the dominant negative form of IκBα significantly suppressed NF-κB induced by PRRSV. Conclusions The results indicate that the generation of ROS is involved in PRRSV replication and this progression is associated with the alteration in NF-κB activity induced by ROS. These results should extend our better understanding the interaction between PRRSV and host MARC-145 cells. Electronic supplementary material The online version of this article (doi:10.1186/s12917-015-0480-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yulin Yan
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China. .,State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, People's Republic of China.
| | - Aiguo Xin
- Yunnan Animal Science and Veterinary Institute, Kunming, Yunnan, People's Republic of China.
| | - Qian Liu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Hui Huang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Zhiyong Shao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Yating Zang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Ling Chen
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Yongke Sun
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
| | - Hong Gao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, People's Republic of China.
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17
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Hai Dang N, Choo YY, Tien Dat N, Hoai Nam N, Van Minh C, Lee JH. 7-Methoxy-(9H-β-Carbolin-1-il)-(E)-1-Propenoic Acid, a β-Carboline Alkaloid FromEurycoma longifolia, Exhibits Anti-Inflammatory Effects by Activating the Nrf2/Heme Oxygenase-1 Pathway. J Cell Biochem 2015; 117:659-70. [DOI: 10.1002/jcb.25315] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 08/17/2015] [Indexed: 01/18/2023]
Affiliation(s)
- Nguyen Hai Dang
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet Caugiay Hanoi Vietnam
| | - Young-Yeon Choo
- Department of Biochemistry; College of Natural Sciences; Kangwon National University; Chuncheon, Gangwon-Do 200-701 Republic of Korea
| | - Nguyen Tien Dat
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet Caugiay Hanoi Vietnam
| | - Nguyen Hoai Nam
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet Caugiay Hanoi Vietnam
| | - Chau Van Minh
- Institute of Marine Biochemistry; Vietnam Academy of Science and Technology; 18 Hoang Quoc Viet Caugiay Hanoi Vietnam
| | - Jeong-Hyung Lee
- Department of Biochemistry; College of Natural Sciences; Kangwon National University; Chuncheon, Gangwon-Do 200-701 Republic of Korea
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18
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Wallert M, Schmölz L, Koeberle A, Krauth V, Glei M, Galli F, Werz O, Birringer M, Lorkowski S. α-Tocopherol long-chain metabolite α-13'-COOH affects the inflammatory response of lipopolysaccharide-activated murine RAW264.7 macrophages. Mol Nutr Food Res 2015; 59:1524-34. [PMID: 25943249 DOI: 10.1002/mnfr.201400737] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 04/13/2015] [Accepted: 04/13/2015] [Indexed: 01/28/2023]
Abstract
SCOPE Inflammatory response of macrophages is regulated by vitamin E forms. The long-chain metabolite α-13'-carboxychromanol (α-13'-COOH) is formed by hepatic α-tocopherol (α-TOH) catabolism and acts as a regulatory metabolite via pathways that are different from its metabolic precursor. METHODS AND RESULTS Using semisynthetically-derived α-13'-COOH we profiled its action on LPS-induced expression of pro- and anti-inflammatory genes using RT-qPCR and of key proteins by Western blotting. Effects on inflammatory response were assessed by measuring production of nitric oxide and prostaglandin (PG) E2 , PGD2 , and PGF2α. α-13'-COOH inhibits proinflammatory pathways in LPS-stimulated RAW264.7 macrophages more efficiently than α-TOH. Profiling inflammation-related genes showed significant blocking of interleukin (Il)1β by the metabolite and its precursor as well, while upregulation of Il6 was not impaired. However, induction of Il10, cyclooxygenase 2 (Cox2) and inducible nitric oxide synthase (iNos) by LPS and consequently the formation of nitric oxide and PG was significantly reduced by α-13'-COOH. Interestingly, α-13'-COOH acted independently from translocation of NFκB subunit p65. CONCLUSION Our study sheds new light on the mode of action of α-TOH on the inflammatory response in macrophages, which may be mediated in vivo at least in part by its metabolite α-13'-COOH. Our data show that α-13'-COOH is a potent anti-inflammatory molecule.
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Affiliation(s)
- Maria Wallert
- Department of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany
| | - Lisa Schmölz
- Department of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany
| | - Andreas Koeberle
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Verena Krauth
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Michael Glei
- Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany.,Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany.,Department of Nutrition Toxicology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany
| | - Francesco Galli
- Department of Pharmaceutical Sciences, Laboratory of Nutrition and Clinical Biochemistry, University of Perugia, Perugia, Italy
| | - Oliver Werz
- Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany.,Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Studies, HS Fulda - University of Applied Sciences, Fulda, Germany
| | - Stefan Lorkowski
- Department of Nutritional Biochemistry and Physiology, Institute of Nutrition, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster of Nutrition and Cardiovascular Health (nutriCARD), Friedrich Schiller University Jena, Jena, Germany
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19
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Dias MMDS, Martino HSD, Noratto G, Roque-Andrade A, Stringheta PC, Talcott S, Ramos AM, Mertens-Talcott SU. Anti-inflammatory activity of polyphenolics from açai (Euterpe oleracea Martius) in intestinal myofibroblasts CCD-18Co cells. Food Funct 2015; 6:3249-56. [DOI: 10.1039/c5fo00278h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This is the first time that the anti-inflammatory activities of açai polyphenols relevant to intestinal inflammation were demonstrated in colon fibroblasts cells.
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Affiliation(s)
| | | | - Giuliana Noratto
- Department of Nutrition and Food Science
- Texas A&M University
- College Station
- USA
- Department of Food Science
| | | | | | - Stephen Talcott
- Department of Nutrition and Food Science
- Texas A&M University
- College Station
- USA
| | - Afonso Mota Ramos
- Department of Food Technology
- Federal University of Viçosa
- Viçosa
- Brazil
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20
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Hui B, Yao X, Zhou Q, Wu Z, Sheng P, Zhang L. Pristimerin, a natural anti-tumor triterpenoid, inhibits LPS-induced TNF-α and IL-8 production through down-regulation of ROS-related classical NF-κB pathway in THP-1 cells. Int Immunopharmacol 2014; 21:501-8. [PMID: 24957686 DOI: 10.1016/j.intimp.2014.06.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 06/09/2014] [Accepted: 06/09/2014] [Indexed: 01/20/2023]
Abstract
Pristimerin, a naturally occurring quinonemethide triterpenoid compound, is known to exert a variety of pharmacological activities. In the present study, we investigated the molecular actions of pristimerin against LPS-induced inflammatory responses in human monocytic THP-1 cells. The results showed that pristimerin inhibited the production of TNF-α and IL-8 in a dose-dependent manner. To explore the possible mechanisms underlying these inhibitions by pristimerin, we examined the intracellular ROS level and the NF-κB protein signaling pathway. Pristimerin clearly scavenged LPS-induced intracellular ROS production. In addition, pristimerin prevented LPS-induced NF-κB activation through the inhibition of phosphorylation of IKKα/β, phosphorylation and degradation of IκBα, as well as phosphorylation and nuclear translocation of NF-κB p65. These findings suggest that pristimerin down-regulates the expression of pro-inflammatory mediators through blocking of NF-κB activation by inhibiting interconnected ROS/IKK/NF-κB signaling pathways.
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Affiliation(s)
- Bin Hui
- Department of Pharmacology, College of Medicine, Jiaxing University, Jiaxing 314001, China
| | - Xin Yao
- Department of Pharmacology, College of Medicine, Jiaxing University, Jiaxing 314001, China
| | - Qinhua Zhou
- Department of Pharmacology, College of Medicine, Jiaxing University, Jiaxing 314001, China
| | - Ziyan Wu
- Department of Pharmacology, College of Medicine, Jiaxing University, Jiaxing 314001, China
| | - Peng Sheng
- Haining Maternal and Child Health Hospital, Haining, Zhejiang 314000, China
| | - Liping Zhang
- Department of Emergency Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200023, China.
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21
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Martati E, Boonpawa R, van den Berg JH, Paini A, Spenkelink A, Punt A, Vervoort J, van Bladeren PJ, Rietjens IM. Malabaricone C-containing mace extract inhibits safrole bioactivation and DNA adduct formation both in vitro and in vivo. Food Chem Toxicol 2014; 66:373-84. [DOI: 10.1016/j.fct.2014.01.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/21/2014] [Accepted: 01/27/2014] [Indexed: 11/29/2022]
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22
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Unsaponifiable fraction from extra virgin olive oil inhibits the inflammatory response in LPS-activated murine macrophages. Food Chem 2014; 147:117-23. [DOI: 10.1016/j.foodchem.2013.09.117] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 07/16/2013] [Accepted: 09/23/2013] [Indexed: 12/22/2022]
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23
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Sánchez-Fidalgo S, da Silva MS, Cárdeno A, Aparicio-Soto M, Salvador MJ, Frankland Sawaya ACH, Souza-Brito ARM, de la Lastra CA. Abarema cochliacarpos reduces LPS-induced inflammatory response in murine peritoneal macrophages regulating ROS-MAPK signal pathway. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:140-147. [PMID: 23792124 DOI: 10.1016/j.jep.2013.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/07/2013] [Accepted: 06/01/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Abarema cochliacarpos (Gomes) Barneby and Grimes (Fabaceae), known by the vulgar name of Babatenã, has been traditionally used in Northeast Brazil, as an anti-inflammatory remedy. Previous studies have demonstrated its anti-inflammatory and antiulcer effects in skin lesion, alcohol gastric ulcer and acute and chronic colitis. AIMS The present study was designed to evaluate the antioxidant and anti-inflammatory effects of the butanolic fraction from A. cochliacarpos (BFAC) and its major flavonoid, (+)-catechin, in LPS-stimulated murine peritoneal macrophages. Moreover, we studied the role of mitogen-activated protein kinase (MAPK)s and NF-kB signaling pathways possibly involved in the beneficial effects. MATERIALS AND METHODS The quantification of the extract was carried out by ultra-performance liquid chromatography analysis. Cell viability was determined using SRB assay. Nitric oxide (NO) production was analyzed by Griess method and intracellular reactive oxygen species (ROS) by fluorescence analysis. In addition, cyclooxygenase (COX-2) and inducible nitric oxide synthase (iNOS) expression, MAPK activation and IkappaBalpha (IKBα) degradation, were determined by Western blot. RESULTS After BFAC characterization, (+)-catechin was revealed as its major constituent. Both BFAC and (+)-catechin, exerted significant anti-oxidant and anti-inflammatory effects inhibiting LPS-induced intracellular ROS and NO production in peritoneal macrophages. Additionally, the extract but also its major component reduced pro-inflammatory proteins expression probably through c-Jun N-terminal kinase and p38 MAPK signaling pathways. CONCLUSION These data suggest that the beneficial effects of BFAC might be mediated, at least in part, by the presence of (+)-catechin. Conclusively our findings confirm the potential of A. cochliacarpos as a new therapeutic strategy for the management of inflammatory and oxidative stress-related diseases.
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Affiliation(s)
- S Sánchez-Fidalgo
- Department Pharmacology, School of Pharmacy, University of Seville, Spain
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24
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Xu W, Xue L, Sun Y, Henry A, Battle JM, Micault M, Morris SW. Bcl10 is an essential regulator for A20 gene expression. J Physiol Biochem 2013; 69:821-34. [DOI: 10.1007/s13105-013-0259-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 04/29/2013] [Indexed: 01/22/2023]
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25
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Kang JW, Min BS, Lee JH. Anti-platelet activity of erythro-(7S,8R)-7-acetoxy-3,4,3',5'-tetramethoxy-8-O-4'-neolignan from Myristica fragrans. Phytother Res 2013; 27:1694-9. [PMID: 23296979 DOI: 10.1002/ptr.4923] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 11/26/2012] [Accepted: 12/07/2012] [Indexed: 11/08/2022]
Abstract
Platelets play a critical role in pathogenesis of cardiovascular disorders and strokes. The inhibition of platelet function is beneficial for the treatment and prevention of these diseases. In this study, we investigated the anti-platelet activity of erythro-(7S,8R)-7-acetoxy-3,4,3',5'-tetramethoxy-8-O-4'-neolignan (EATN), a neolignan isolated from Myristica fragrans, using human platelets. EATN preferentially inhibited thrombin- and platelet-activating factor (PAF)-induced platelet aggregation without affecting platelet damage in a concentration-dependent manner with IC50 values of 3.2 ± 0.4 and 3.4 ± 0.3 μM, respectively. However, much higher concentrations of EATN were required to inhibit platelet aggregation induced by arachidonic acid. EATN also inhibited thrombin-induced serotonin and ATP release, and thromboxane B2 formation in human platelets. Moreover, EATN caused an increase in cyclic AMP (cAMP) levels and attenuated intracellular Ca(2+) mobilization in thrombin-activated human platelets. Therefore, we conclude that the inhibitory mechanism of EATN on platelet aggregation may increase cAMP levels and subsequently inhibit intracellular Ca(2+) mobilization by interfering with a common signaling pathway rather than by directly inhibiting the binding of thrombin or PAF to their receptors. This is the first report of the anti-platelet activity of EATN isolated from M. fragrans.
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Affiliation(s)
- Jung Won Kang
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do, 200-701, Republic of Korea
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