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Yu Q, Mei C, Cui M, He Q, Liu X, Du X. Nepetoidin B Alleviates Liver Ischemia/Reperfusion Injury via Regulating MKP5 and JNK/P38 Pathway. Drug Des Devel Ther 2024; 18:2301-2315. [PMID: 38911032 PMCID: PMC11192200 DOI: 10.2147/dddt.s457130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 06/01/2024] [Indexed: 06/25/2024] Open
Abstract
Background Nepetoidin B (NB) has been reported to possess anti-inflammatory, antibacterial, and antioxidant properties. However, its effects on liver ischemia/reperfusion (I/R) injury remain unclear. Methods In this study, a mouse liver I/R injury model and a mouse AML12 cell hypoxia reoxygenation (H/R) injury model were used to investigate the potential role of NB. Serum transaminase levels, liver necrotic area, cell viability, oxidative stress, inflammatory response, and apoptosis were evaluated to assess the effects of NB on liver I/R and cell H/R injury. Quantitative polymerase chain reaction (qPCR) and Western blotting were used to measure mRNA and protein expression levels, respectively. Molecular docking was used to predict the binding capacity of NB and mitogen-activated protein kinase phosphatase 5 (MKP5). Results The results showed that NB significantly reduced serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, liver necrosis, oxidative stress, reactive oxygen species (ROS) content, inflammatory cytokine content and expression, inflammatory cell infiltration, and apoptosis after liver I/R and AML12 cells H/R injury. Additionally, NB inhibited the JUN protein amino-terminal kinase (JNK)/P38 pathway. Molecular docking results showed good binding between NB and MKP5 proteins, and Western blotting results showed that NB increased the protein expression of MKP5. MKP5 knockout (KO) significantly diminished the protective effects of NB against liver injury and its inhibitory effects on the JNK/P38 pathway. Conclusion NB exerts hepatoprotective effects against liver I/R injury by regulating the MKP5-mediated P38/JNK signaling pathway.
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Affiliation(s)
- Qiwen Yu
- Department of Emergency Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Chaopeng Mei
- Department of Emergency Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Mengwei Cui
- Department of Emergency Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Qianqian He
- Department of Emergency Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Xudong Liu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Xiaoxiao Du
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
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Li Z, Li S, Xing Z, Gu Q, Du R, Jiang J, Yuan X, Zhang X, Chen X, Xue N, Zhang P, Jin J, Yang Y. Discovery of Natural Ah Receptor Antagonists from Salvia miltiorrhiza Bunge and Synthesis of Analogs for Tumor Immunotherapy. J Med Chem 2024; 67:1243-1261. [PMID: 38176026 DOI: 10.1021/acs.jmedchem.3c01740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
IDO/TDO/Kyn/AhR signaling plays a crucial role in regulating innate and adaptive immunity, and targeting Ah receptor (AhR) inhibition can potentially redirect immune cells toward an antitumoral phenotype. Therefore, AhR is an attractive drug target for novel small molecule cancer immunotherapies. In this study, natural products tanshinolic A-D (1-4), the first adducts composed of ortho-naphthoquinone-type tanshinone and phenolic acid featuring a unique 1,4-benzodioxan hemiacetal structure, were isolated and characterized from the roots of Salvia miltiorrhiza Bunge. Luciferase reporter gene assay revealed that these adducts exhibited significant AhR inhibitory activity. A linear strategy was developed to construct a cis-3,4-disubstituted 1,4-benzodioxan hemiacetal structure. Encouragingly, in both in vitro and in vivo experiments, (±)-13e demonstrated the ability to inhibit tumor cell proliferation, promote INF-γ secretion in CD8+ T cells, and inhibit PD-1/PD-L1 signal transduction, which could exert tumor inhibition properties by inhibiting AhR activity, positioning it as a promising candidate for tumor immunotherapy.
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Affiliation(s)
- Zhenyuan Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shuying Li
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zeyu Xing
- Department of Breast Cancer, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Quanchang Gu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Rongrong Du
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jianshuang Jiang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiang Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xu Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaoguang Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Nina Xue
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Peicheng Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jing Jin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yanan Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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Han S, Li S, Li J, He J, Wang QQ, Gao X, Yang S, Li J, Yuan R, Zhong G, Gao H. Hederasaponin C inhibits LPS-induced acute kidney injury in mice by targeting TLR4 and regulating the PIP2/NF-κB/NLRP3 signaling pathway. Phytother Res 2023; 37:5974-5990. [PMID: 37778741 DOI: 10.1002/ptr.8014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023]
Abstract
Acute kidney injury (AKI) is a common clinical condition associated with increased incidence and mortality rates. Hederasaponin C (HSC) is one of the main active components of Pulsatilla chinensis (Bunge) Regel. HSC possesses various pharmacological activities, including anti-inflammatory activity. However, the protective effect of HSC against lipopolysaccharide (LPS)-induced AKI in mice remains unclear. Therefore, we investigated the protective effect of HSC against LPS-induced renal inflammation and the underlying molecular mechanisms. Herein, using MTT and LDH assays to assess both cell viability and LDH activity; using dual staining techniques to identify different cell death patterns; conducting immunoblotting, QRT-PCR, and immunofluorescence analyses to evaluate levels of protein and mRNA expression; employing immunoblotting, molecular docking, SPR experiments, and CETSA to investigate the interaction between HSC and TLR4; and studying the anti-inflammatory effects of HSC in the LPS-induced AKI. The results indicate that HSC inhibits the expression of TLR4 and the activation of NF-κB and PIP2 signaling pathways, while simultaneously suppressing the activation of the NLRP3 inflammasome. In animal models, HSC ameliorated LPS-induced AKI and diminished inflammatory response and the level of renal injury markers. These findings suggest that HSC has potential as a therapeutic agent to mitigate sepsis-related AKI.
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Affiliation(s)
- Shan Han
- Research Center for Traditional Chinese Medicine Resources and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Siyuan Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Jilang Li
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Jia He
- Research Center for Traditional Chinese Medicine Resources and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Qin-Qin Wang
- Research Center for Traditional Chinese Medicine Resources and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Xiang Gao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Shilin Yang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Jingjing Li
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hong Kong, China
| | - Renyikun Yuan
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Guoyue Zhong
- Research Center for Traditional Chinese Medicine Resources and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Hongwei Gao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
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Sun C, Hao B, Pang D, Li Q, Li E, Yang Q, Zou Y, Liao S, Liu F. Diverse Galactooligosaccharides Differentially Reduce LPS-Induced Inflammation in Macrophages. Foods 2022; 11:foods11243973. [PMID: 36553716 PMCID: PMC9777761 DOI: 10.3390/foods11243973] [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: 10/25/2022] [Revised: 11/28/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022] Open
Abstract
The effects of natural and synthetic galactooligosaccharides (GOS) on inflammation were explored by investigating the structure-activity relationship between the degree of GOS polymerization and in vitro anti-inflammatory activity, together with the potential underlying mechanism of their anti-inflammatory effects. The results demonstrated that GOS had strong anti-inflammatory effects in lipopolysaccharide (LPS)-induced RAW264.7 macrophages, including the inhibition of nitric oxide production and the reduced expression of pro-inflammatory mediators (interleukin-1β, interleukin-6, and tumor necrosis factor α), induced nitric oxide synthase (iNOS), cyclooxygenase 2 (COX-2), and proteins related to the Toll-like receptor 4 (TLR4)/nuclear factor (NF)-κB signaling pathway. GOS4, which has the highest degree of polymerization, exerted the strongest anti-inflammatory activity among the GOS examined. More importantly, our findings confirmed the anti-inflammatory effects of GOS on RAW264.7 macrophages via the TLR4/NF-κB pathway. Our experimental results could provide further support for the exploration of GOS in human nutrition and health.
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Affiliation(s)
- Congcong Sun
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Bifang Hao
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212018, China
| | - Daorui Pang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
| | - Qian Li
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
| | - Erna Li
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
| | - Qiong Yang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
| | - Yuxiao Zou
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
| | - Sentai Liao
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
| | - Fan Liu
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510600, China
- Correspondence: ; Tel.:+86-20-87236897
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Anti-neuroinflammatory effect of oxaline, isorhodoptilometrin, and 5-hydroxy-7-(2′-hydroxypropyl)-2-methyl-chromone obtained from the marine fungal strain Penicillium oxalicum CLC-MF05. Arch Pharm Res 2022; 45:90-104. [DOI: 10.1007/s12272-022-01370-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 01/24/2022] [Indexed: 11/02/2022]
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Ko W, Kim KW, Liu Z, Dong L, Yoon CS, Lee H, Kim YC, Oh H, Lee DS, Kim SC. Macluraxanthone B inhibits LPS-induced inflammatory responses in RAW264.7 and BV2 cells by regulating the NF-κB and MAPK signaling pathways. Immunopharmacol Immunotoxicol 2021; 44:67-75. [PMID: 34821534 DOI: 10.1080/08923973.2021.2006215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The prenylated xanthones compounds, macluraxanthone B (MCXB) was isolated from the MeOH extracts of Cudrania tricuspidata. In this study, we investigated the effect of MCXB on inflammatory response. MATERIALS AND METHODS Anti-inflammatory effects of MCXB were examined in lipopolysaccharide (LPS)-stimulated RAW264.7 and BV2 cells. We observed their anti-inflammatory effects by ELISA, western blot analysis, and immunofluorescence. RESULTS MCXB significantly inhibited the LPS-stimulated production of nitric oxide (NO), prostaglandin E2 (PGE2), interleukin-6 (IL-6), and tumor necrosis factor (TNF)-α in RAW264.7 and BV2 cells. MCXB also reduced the LPS-induced expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2 proteins. Incubating cells with MCXB prevented subsequent activation of the nuclear factor kappa B (NF-κB) signaling pathway by inhibiting the nuclear localization and DNA-binding activity of the p65 subunit induced by LPS. MCXB inhibited the phosphorylation of c-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), and p38 mitogen-activated protein kinases (MAPKs) in RAW264.7 and BV2 cells. MCXB induced the expression of heme oxygenase (HO)-1 protein, and the inhibitory effect of MCXB on nitric oxide production was partially reversed by a selective HO-1 inhibitor. DISCUSSION AND CONCLUSIONS Our results suggested that the anti-inflammatory effect of MCXB is partly regulated by HO-1 induction. In conclusion, MCXB could be a useful candidate for the development of therapeutic and preventive agents to treat inflammatory diseases.
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Affiliation(s)
- Wonmin Ko
- College of Pharmacy, Chosun University, Gwangju, Republic of Korea
| | - Kwan-Woo Kim
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA, Eumseong, Republic of Korea
| | - Zhiming Liu
- College of Pharmacy, Chosun University, Gwangju, Republic of Korea
| | - Linsha Dong
- College of Pharmacy, Chosun University, Gwangju, Republic of Korea
| | - Chi-Su Yoon
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Hwan Lee
- College of Pharmacy, Chosun University, Gwangju, Republic of Korea
| | - Youn-Chul Kim
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, Republic of Korea
| | - Dong-Sung Lee
- College of Pharmacy, Chosun University, Gwangju, Republic of Korea
| | - Sam Cheol Kim
- Department of Family Practice and Community Medicine, Chosun University College of Medicine, Gwangju, Republic of Korea
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Kim M, Kim JY, Yang HS, Choe JS, Hwang IG. Nepetoidin B from Salvia plebeia R. Br. Inhibits Inflammation by Modulating the NF-κB and Nrf2/HO-1 Signaling Pathways in Macrophage Cells. Antioxidants (Basel) 2021; 10:antiox10081208. [PMID: 34439456 PMCID: PMC8388923 DOI: 10.3390/antiox10081208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022] Open
Abstract
Salvia plebeia has been used to treat a variety of inflammatory diseases, as well as colds and bronchitis. Macrophages have antioxidant defense mechanisms to cope with the intracellular reactive oxygen species (ROS) produced as part of the immune response. The nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase (HO)-1 pathway in inflamed macrophages is an appealing target due to its protective effect against ROS-induced cell damage. In this study, nepetoidin B (NeB) was first isolated from S. plebeia and identified by nuclear magnetic resonance spectroscopy. NeB reduced pro-inflammatory mediators (nitric oxide and prostaglandin E2) and cytokines (tumor necrosis factor-α, interleukin (IL)-6, and IL-1β) in LPS-activated RAW 264.7 cells by inhibiting the NF-κB signaling pathway. In the NeB-treated group, catalase and superoxide dismutase levels were significantly higher, and ROS expression decreased. By activating Nrf2 signaling, NeB enhanced HO-1 expression. Furthermore, when the cells were pretreated with tin protoporphyrin (an HO-1 inhibitor), the anti-inflammatory effects of NeB were reduced. Therefore, NeB may activate the Nrf2/ HO-1 pathway. These results reveal the NeB isolated from S. plebeia exerts anti-inflammatory effects by modulating NF-κB signaling and activating the Nrf2/HO-1 pathway in LPS-stimulated RAW 264.7 cells.
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Nguyen TMH, Le HL, Ha TT, Bui BH, Le NT, Nguyen VH, Nguyen TVA. Inhibitory effect on human platelet aggregation and coagulation and antioxidant activity of C. edulis Ker Gawl rhizome and its secondary metabolites. JOURNAL OF ETHNOPHARMACOLOGY 2020; 263:113136. [PMID: 32758576 DOI: 10.1016/j.jep.2020.113136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Although Canna edulis Ker Gawl rhizome has been used in Traditional Vietnamese Medicine to prevent and treat heart diseases without thorough scientific evidence, limited intensive search for the bioactivities and useful substances has been done. AIM OF THE STUDY This study aims to investigate the antiplatelet aggregation, anticoagulant and antioxidant activity of extracts from C. edulis rhizome, separate and purify its compounds from the most active fraction and evaluate the antiplatelet aggregation, anticoagulant and antioxidant activity of isolated compounds. MATERIALS AND METHODS C. edulis rhizome was extracted with ethanol, then fractionated with n-hexane, ethyl acetate and water. The inhibitory effect on adenosine diphosphate- and collagen-induced human platelet aggregation was evaluated. Prothrombin time, activated partial thromboplastine time and thrombine time were measured to examine the anticoagulant activity. The free radical scavenging ability was assessed with DPPH and ABTS assays. The fraction that showed the most active was used to separate and purify compounds. The structures of compounds were elucidated by NMR and MS spectroscopic methods. Isolated compounds were also tested for antiplatelet, anticoagulant and antioxidant activity. RESULTS The ethyl acetate fraction showed the most potent antiplatelet aggregation, anticoagulant and antioxidant activity. Subsequent fractionation of this active fraction resulted in the isolation of seven known compounds: 5-hydroxy-6-methyl-2H-pyran-2-one (1), epimedokoreanone A (2), nepetoidin B (3), ferulic acid (4), caffeic acid (5), hydroxytyrosol (6), and 1H-indole-3-carboxaldehyde (7). Previous studies reported the antiplatelet, anticoagulant and antioxidant activity of ferulic acid (4), caffeic acid (5) and hydroxytyrosol (6) and the antioxidant activity of nepetoidin B (3). This study demonstrated that both epimedokoreanone A (2) and nepetoidine B (3) also exhibited good antiplatelet effect and epimedokoreanone A (2) also had effective anticoagulant and antioxidant activity, while 5-hydroxy-6-methyl-2H-pyran-2-one (1) showed weaker antiplatelet and antioxidant activity but no anticoagulant effect. CONCLUSIONS This is the first experimental study to demonstrate the potent dose-dependent antiplatelet aggregation, anticoagulant and antioxidant activity of C. edulis rhizome and its pure compounds, supporting the traditional use of this plant for the treatment of heart diseases. The C. edulis rhizome is a potential source of bioactive compounds or functional food for treatment and/or prevention of heart- and oxidative stress-related diseases and its bioactive compounds are good candidates for drug development of anti-thrombosis and antioxidant agents.
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Affiliation(s)
- Thi Minh Hang Nguyen
- Center of Drug Research and Development, Institute of Marine Biochemistry, Viet Nam
| | - Hong Luyen Le
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Thi Thoa Ha
- Center of Drug Research and Development, Institute of Marine Biochemistry, Viet Nam
| | - Bich Hau Bui
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam
| | - Nguyen Thanh Le
- Center of Drug Research and Development, Institute of Marine Biochemistry, Viet Nam
| | - Van Hung Nguyen
- Center of Drug Research and Development, Institute of Marine Biochemistry, Viet Nam
| | - Thi Van Anh Nguyen
- Department of Life Sciences, University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam.
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Ko W, Kim KW, Quang TH, Yoon CS, Kim N, Lee H, Kim SC, Woo ER, Kim YC, Oh H, Lee DS. Cudraflavanone B Isolated from the Root Bark of Cudrania tricuspidata Alleviates Lipopolysaccharide-Induced Inflammatory Responses by Downregulating NF-κB and ERK MAPK Signaling Pathways in RAW264.7 Macrophages and BV2 Microglia. Inflammation 2020; 44:104-115. [PMID: 32766955 DOI: 10.1007/s10753-020-01312-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A prenylated flavonoid, cudraflavanone B, is isolated from Cudrania tricuspidata. In this study, we investigated its anti-inflammatory and anti-neuroinflammatory effects in lipopolysaccharide (LPS)-induced RAW264.7 and BV2 cells. In our initial study of the anti-inflammatory effects of cudraflavanone B the production of nitric oxide and prostaglandin E2 was attenuated in LPS-stimulated RAW264.7 and BV2 cells. These inhibitory effects were related to the downregulation of inducible nitric oxide synthase and cyclooxygenase-2. In addition, cudraflavanone B suppressed the production of pro-inflammatory cytokines such as interleukin-6 and tumor necrosis factor-α in LPS-induced RAW264.7 and BV2 cells. Moreover, the evaluation of the molecular mechanisms underlying the anti-inflammatory effects of cudraflavanone B revealed that the compound attenuated the nuclear factor-kappa B signaling pathway in LPS-induced RAW264.7 and BV2 cells. In addition, cudraflavanone B inhibited the phosphorylation of extracellular signal-regulated kinase mitogen-activated protein kinase signaling pathways in these LPS-stimulated cells. Thus, cudraflavanone B suppressed nuclear factor-κB, and extracellular signal-regulated kinase mitogen-activated protein kinase mediated inflammatory pathways, demonstrating its potential in the treatment of neuroinflammatory conditions.
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Affiliation(s)
- Wonmin Ko
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Kwan-Woo Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Tran Hong Quang
- Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Chi-Su Yoon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju-si, 28116, Republic of Korea
| | - Nayeon Kim
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Hwan Lee
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Sam-Cheol Kim
- Department of Family Practice and Community Medicine, Chosun University College of Medicine, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Eun-Rhan Woo
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, Republic of Korea
| | - Youn-Chul Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Dong-Sung Lee
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, Republic of Korea.
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Liu C, Cheung PCK. Structure and Immunomodulatory Activity of Microparticulate Mushroom Sclerotial β-Glucan Prepared from Polyporus rhinocerus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:9070-9078. [PMID: 31343168 DOI: 10.1021/acs.jafc.9b03206] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, an immunologically active novel microparticulate mushroom β-glucan (PRA-1p) was prepared using an alkali-soluble glucan PRA-1 by an emulsification and cross-linking method. PRA-1 was a hyperbranched (1→3),(1→6)-β-d-glucan with a degree of branching of 0.89, isolated from the sclerotia of Polyporus rhinocerus. PRA-1 had a rod-like conformation, while PRA-1p exhibited a monodisperse and homogeneous spherical conformation with a diameter ranging from 0.3 to 2.0 μm in water. PRA-1p significantly induced nitric oxide and reactive oxygen species production as well as morphological changes of murine macrophages (RAW 264.7 cells) and upregulated their phagocytic activity. Furthermore, PRA-1p treatment markedly enhanced the secretion of cytokines, including cutaneous T cell-attracting chemokine 27, granulocyte-colony-stimulating factor, monocyte chemoattractant protein 1, macrophage inflammatory protein 1α, macrophage inflammatory protein 2, regulated on activation, normal T cell expressed and secreted, soluble tumor necrosis factor receptor 1, and tissue inhibitors of metalloproteinases. Activation of RAW 264.7 cells triggered by PRA-1p was associated with activation of inducible nitric oxide synthase, nuclear factor κB, extracellular signal-regulated kinase, and protein kinase B. This work suggests that novel PRA-1p derived from the mushroom sclerotia of P. rhinocerus has potential application as an immunostimulatory agent.
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Affiliation(s)
- Chaoran Liu
- Shenzhen Institute of Standards and Technology , Shenzhen , Guangdong 518055 , People's Republic of China
- Food and Nutritional Sciences, School of Life Sciences , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong Special Administrative Region of the People's Republic of China
| | - Peter C K Cheung
- Food and Nutritional Sciences, School of Life Sciences , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong Special Administrative Region of the People's Republic of China
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The Dual-Specificity Phosphatase 10 (DUSP10): Its Role in Cancer, Inflammation, and Immunity. Int J Mol Sci 2019; 20:ijms20071626. [PMID: 30939861 PMCID: PMC6480380 DOI: 10.3390/ijms20071626] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 12/22/2022] Open
Abstract
Cancer is one of the most diagnosed diseases in developed countries. Inflammation is a common response to different stress situations including cancer and infection. In those processes, the family of mitogen-activated protein kinases (MAPKs) has an important role regulating cytokine secretion, proliferation, survival, and apoptosis, among others. MAPKs regulate a large number of extracellular signals upon a variety of physiological as well as pathological conditions. MAPKs activation is tightly regulated by phosphorylation/dephosphorylation events. In this regard, the dual-specificity phosphatase 10 (DUSP10) has been described as a MAPK phosphatase that negatively regulates p38 MAPK and c-Jun N-terminal kinase (JNK) in several cellular types and tissues. Several studies have proposed that extracellular signal-regulated kinase (ERK) can be also modulated by DUSP10. This suggests a complex role of DUSP10 on MAPKs regulation and, in consequence, its impact in a wide variety of responses involved in both cancer and inflammation. Here, we review DUSP10 function in cancerous and immune cells and studies in both mouse models and patients that establish a clear role of DUSP10 in different processes such as inflammation, immunity, and cancer.
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