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Min WH, Ko CY, Kim H, Kwon HK, Jang HJ, Bach TT, Han LN, Lee JH, Kim HJ, Hwangbo C. Anti‑inflammatory effects of methanol extract from Peperomia dindygulensis Miq. mediated by HO‑1 in LPS‑induced RAW 264.7 cells. Exp Ther Med 2024; 28:317. [PMID: 38939180 PMCID: PMC11208987 DOI: 10.3892/etm.2024.12606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 04/26/2024] [Indexed: 06/29/2024] Open
Abstract
Inflammation serves as a multifaceted defense mechanism activated by pathogens, cellular damage and irritants, aiming to eliminate primary causes of injury and promote tissue repair. Peperomia dindygulensis Miq. (P. dindygulensis), prevalent in Vietnam and southern China, has a history of traditional use for treating cough, fever and asthma. Previous studies on its phytochemicals have shown their potential as anti-inflammatory agents, yet underlying mechanisms remain to be elucidated. The present study investigated the regulatory effects of P. dindygulensis on the anti-inflammatory pathways. The methanol extracts of P. dindygulensis (PDME) were found to inhibit nitric oxide (NO) production and induce heme oxygenase-1 (HO-1) expression in murine macrophages. While MAPKs inhibitors, such as SP600125, SB203580 and U0126 did not regulate HO-1 expression, the treatment of cycloheximide, a translation inhibitor, reduced HO-1. Furthermore, PDME inhibited lipopolysaccharide (LPS)-induced inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and TNF-α expression at both the mRNA and protein levels. The activity of NOS and the expression of TNF-α, iNOS and COX-2 decreased in LPS-stimulated Raw 264.7 cells treated with PDME and this effect was regulated by inhibition of HO-1 activity. These findings suggested that PDME functions as an HO-1 inducer and serves as an effective natural anti-inflammatory agent in LPS-induced inflammation.
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Affiliation(s)
- Won-Hong Min
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
- Division of Applied Life Science (BK21 Four) and Research Institute of Life Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
| | - Chae-Yeon Ko
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
- Division of Applied Life Science (BK21 Four) and Research Institute of Life Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
| | - Hyemin Kim
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
| | - Hyuk-Kwon Kwon
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
- Division of Applied Life Science (BK21 Four) and Research Institute of Life Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
| | - Hyun-Jae Jang
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheonju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Tran The Bach
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Cau Giay, Hanoi 01211, Vietnam
| | - Le Ngoc Han
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Cau Giay, Hanoi 01211, Vietnam
| | - Jeong-Hyung Lee
- Department of Biochemistry (BK21 Four), College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon 24414, Republic of Korea
| | - Hyo-Jin Kim
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
- Division of Applied Life Science (BK21 Four) and Research Institute of Life Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
| | - Cheol Hwangbo
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
- Division of Applied Life Science (BK21 Four) and Research Institute of Life Sciences, Gyeongsang National University, Jinju-si, Gyeongsang 52828, Republic of Korea
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Jia R, Meng D, Geng W. Advances in the anti-tumor mechanisms of saikosaponin D. Pharmacol Rep 2024; 76:780-792. [PMID: 38965200 DOI: 10.1007/s43440-024-00569-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 07/06/2024]
Abstract
Saikosaponin D, a saponin compound, is extracted from Bupleurum and is a principal active component of the plant. It boasts a variety of pharmacologic effects including anti-inflammatory, antioxidant, immunomodulatory, metabolic, and anti-tumor properties, drawing significant attention in anti-tumor research in recent years. Research indicates that saikosaponin D inhibits the proliferation of numerous tumor cells, curbing the progression of cancers such as liver, pancreatic, lung, glioma, ovarian, thyroid, stomach, and breast cancer. Its anti-tumor mechanisms largely involve inhibiting tumor cell proliferation, promoting tumor cell apoptosis, thwarting tumor-cell invasion, and modulating tumor cell autophagy. Moreover, saikosaponin D enhances the sensitivity to anti-tumor drugs and augments body immunity. Given its multi-faceted anti-tumor roles, saikosaponin D offers promising potential in anti-tumor therapy. This paper reviews recent studies on its anti-tumor effects, aiming to furnish new theoretical insights for clinical cancer treatments.
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Affiliation(s)
- Ruixue Jia
- School of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Dandan Meng
- School of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250355, People's Republic of China
| | - Wei Geng
- Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China.
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Jiao F, Tan Z, Yu Z, Zhou B, Meng L, Shi X. The phytochemical and pharmacological profile of taraxasterol. Front Pharmacol 2022; 13:927365. [PMID: 35991893 PMCID: PMC9386448 DOI: 10.3389/fphar.2022.927365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 06/29/2022] [Indexed: 11/16/2022] Open
Abstract
Taraxasterol is one of the bioactive triterpenoids found in dandelion, a member of the family Asteraceae. In the animal or cellular models of several ailments, including liver damage, gastritis, colitis, arthritis, pneumonia, tumors, and immune system diseases, taraxasterol has been shown to have significant preventive and therapeutic effects. This review aims to evaluate the current state of research and provide an overview of the possible applications of taraxasterol in various diseases. The reported phytochemical properties and pharmacological actions of taraxasterol, including anti-inflammatory, anti-oxidative, and anti-carcinogenic properties, and its potential molecular mechanisms in developing these diseases are highlighted. Finally, we further explored whether taraxasterol has protective effects on neuronal death in neurodegenerative diseases. In addition, more animal and clinical studies are also required on the metabolism, bioavailability, and safety of taraxasterol to support its applications in pharmaceuticals and medicine.
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Affiliation(s)
- Fengjuan Jiao
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, China
- *Correspondence: Fengjuan Jiao,
| | - Zengyue Tan
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, China
| | - Zhonghua Yu
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, China
| | - Bojie Zhou
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, China
| | - Lingyan Meng
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, China
| | - Xinyue Shi
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, China
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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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Joung EJ, Cao L, Lee B, Gwon WG, Park SH, Kim HR. Sargahydroquinoic Acid, a Cyclooxygenase-2 Inhibitor, Attenuates Inflammatory Responses by Regulating NF-κB Inactivation and Nrf2 Activation in Lipopolysaccharide-Stimulated Cells. Inflammation 2021; 44:2120-2131. [PMID: 34050497 DOI: 10.1007/s10753-021-01488-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/12/2021] [Accepted: 05/24/2021] [Indexed: 12/20/2022]
Abstract
Sargahydroquinoic acid (SHQA) is a major plastoquinone in Sargassum macrocarpum and has shown the capacity to prevent inflammation and oxidative stress. However, the protective mechanisms were unclear. The molecular mechanisms of SHQA on ameliorating inflammation and oxidative stress have been investigated, using lipopolysaccharide (LPS)-stimulated macrophages. SHQA was isolated and purified from S. macrocarpum and the anti-inflammatory mechanisms were explored using LPS-stimulated murine macrophage RAW 264.7 cells. SHQA did not change the expression of cyclooxygenase-2 (COX-2) but inhibited the activity of COX-2. As a result, SHQA significantly diminished the secretions of nitric oxide (NO), prostaglandin E2 (PGE2), and multiple pro-inflammatory cytokines. LPS-induced activation of nuclear factor-κB (NF-κB) was inhibited by SHQA by preventing the degradation of inhibitor κB-α (IκBα). NF-κB activation was also downregulated by the inhibition of Akt phosphorylation in LPS-stimulated cells. Furthermore, SHQA induced the expression of heme oxygenase 1 via Nrf2 activation. These results indicated that SHQA inhibited LPS-induced expressions of inflammatory mediators via suppressing the Akt-mediated NF-κB pathway as well as upregulating the Nrf2/HO-1 pathway. Our findings suggest that SHQA might be a potential therapeutic agent in various inflammatory diseases.
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Affiliation(s)
- Eun-Ji Joung
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea
| | - Lei Cao
- Institute of Marine Life Sciences, Pukyong National University, Busan, 48513, Republic of Korea
| | - Bonggi Lee
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea
| | - Wi-Gyeong Gwon
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea
| | - Sang-Hyug Park
- Department of Biomedical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Hyeung-Rak Kim
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea.
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Abdel-Zaher AO, Abd-Ellatief RB, Aboulhagag NA, Farghaly HSM, Al-Wasei FMM. The potential relationship between gasotransmitters and oxidative stress, inflammation and apoptosis in lead-induced hepatotoxicity in rats. Tissue Cell 2021; 71:101511. [PMID: 33725649 DOI: 10.1016/j.tice.2021.101511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 12/30/2022]
Abstract
The interrelationship between gasotransmitters and oxidative stress, inflammation and apoptosis in lead-induced hepatotoxicity was investigated in this study. On prolonged exposure, lead was accumulated in liver tissue of rats and impaired liver function and structure as assessed by measurement of the serum hepatic function markers and by histopathological examination. The accumulated metal induced oxidative stress, inflammation and apoptosis in the liver. Also, it increased nitric oxide (NO) production and decreased hydrogen sulfide (H2S) level and heme oxygenase (HO-1) concentration in liver tissue. Decreasing of NO production by L-N(G)-nitroarginine methyl ester (L-NAME) and increasing of H2S level by sodium hydrosulfide (NaHS) and carbon monoxide (CO) level by carbon monoxide-releasing molecule-A1 (CORM-A1) inhibited lead-induced impairment of liver function and structure. Concomitantly, these agents inhibited lead intoxication-induced oxidative stress, inflammation, apoptosis, nitrosative stress and reduction of HO-1 concentration and H2S level. Furthermore, concurrent treatment with these agents inhibited lead intoxication-induced increase in the protein expressions of inducible NO synthase, tumor necrosis factor-alpha, interleukin-1beta and caspase-3 as well as decrease in protein expressions of HO-1 and cystathionine-γ-lyase in the liver. NO donor, l-arginine and H2S and CO biosynthesis inhibitors, trifluoro-DL-alanine and zinc deutroporphyrin, respectively aggravated the toxic effects of lead. These results indicate, for the first time, that there is an interrelationship between gasotransmitters and lead-induced hepatotoxicity. The ability of L-N AME, NaHS and CORM-A1 to provide protective effects against lead-induced hepatotoxicity may positively correlate, to their ability to suppress hepatic oxidative stress, nitrosative stress, inflammation and apoptosis.
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Affiliation(s)
- Ahmed O Abdel-Zaher
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt.
| | - Rasha B Abd-Ellatief
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Noha A Aboulhagag
- Department of Patholology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Hanan S M Farghaly
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Fahmy M M Al-Wasei
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
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Anti-Inflammatory Effects of Ribes diacanthum Pall Mediated via Regulation of Nrf2/HO-1 and NF-κB Signaling Pathways in LPS-Stimulated RAW 264.7 Macrophages and a TPA-Induced Dermatitis Animal Model. Antioxidants (Basel) 2020; 9:antiox9070622. [PMID: 32679895 PMCID: PMC7402139 DOI: 10.3390/antiox9070622] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 12/31/2022] Open
Abstract
Ribes diacanthum Pall (RDP) is a Mongolian traditional medicine used to treat renal inflammation. In the present study, we initially investigated the anti-inflammatory effects and mechanisms of action of ethylacetate extract of RDP (EARDP) in RAW 264.7 macrophages stimulated by lipopolysaccharide (LPS) and 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced dermatitis in mice. We demonstrated that EARDP protected against LPS-induced cell death by inhibiting intracellular reactive oxygen species (ROS) and malondialdehyde (MDA) production, as well as the synthesis of pro-inflammatory mediators and cytokines, such as nitric oxide (NO), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and IL-1β. EARDP inhibited the phosphorylation and degradation of inhibitory κB-α (IκB-α) and the activation of nuclear factor (NF)-κB, indicating that the anti-inflammatory effect of EARDP was mediated via the suppression of NF-κB nuclear translocation. In addition, EARDP induced the heme oxygenase-1 (HO-1) expression and nuclear translocation of nuclear factor-E2-related factor 2 (Nrf2), indicating that EARDP induced HO-1 via the Nrf2 pathway in RAW 264.7 cells. Furthermore, EARDP significantly suppressed the protein expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in LPS-stimulated RAW 264.7 macrophages. However, ZnPP, a specific inhibitor of HO-1, reversed the EARDP-mediated inhibition of NO and TNF-α production in LPS-stimulated RAW 264.7 macrophages. EARDP blocked the phosphorylation of mitogen-activated protein kinase (MAPK) and Akt in LPS-stimulated RAW 264.7 cells. In the in vivo animal model, EARDP significantly and dose-dependently reduced TPA-induced secretion of TNF-α and IL-6 in mouse ear. Based on these results, EARDP represents a promising natural compound, protective against oxidative stress and inflammatory diseases.
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Jalal S, Ahmad B, Zhang T, Guo L, Huang L. SANTAMARINE: Mechanistic studies on multiple diseases. Chem Biol Drug Des 2020; 95:427-434. [DOI: 10.1111/cbdd.13666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 01/17/2020] [Accepted: 01/19/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Sajid Jalal
- Department of Pathophysiology College of Basic Medical Sciences Dalian Medical University Dalian China
| | - Bashir Ahmad
- Department of Pathophysiology College of Basic Medical Sciences Dalian Medical University Dalian China
| | - Ting Zhang
- Department of Pathophysiology College of Basic Medical Sciences Dalian Medical University Dalian China
| | - Lianying Guo
- Department of Pathophysiology College of Basic Medical Sciences Dalian Medical University Dalian China
| | - Lin Huang
- Department of Pathophysiology College of Basic Medical Sciences Dalian Medical University Dalian China
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Lim JS, Lee SH, Lee SR, Lim HJ, Roh YS, Won EJ, Cho N, Chun C, Cho YC. Inhibitory Effects of Aucklandia lappa Decne. Extract on Inflammatory and Oxidative Responses in LPS-Treated Macrophages. Molecules 2020; 25:molecules25061336. [PMID: 32183436 PMCID: PMC7144571 DOI: 10.3390/molecules25061336] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/13/2020] [Accepted: 03/13/2020] [Indexed: 01/03/2023] Open
Abstract
Aucklandia lappa Decne., known as “Mok-hyang” in Korea, has been used for the alleviation of abdominal pain, vomiting, diarrhea, and stress gastric ulcers in traditional oriental medicine. We investigated the anti-inflammatory and antioxidative effects of the ethanol extract of Aucklandia lappa Decne. (ALDE) in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. ALDE significantly inhibited the LPS-induced nitric oxide (NO) production and reduced inducible nitric oxide synthase (iNOS) expression in RAW 264.7 cells. The production of other proinflammatory mediators, including COX-2, interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α, was reduced by ALDE in LPS-stimulated RAW 264.7 cells. The mechanism underlying the anti-inflammatory effects of ALDE was elucidated to be the suppression of LPS-induced nuclear translocation of p65, followed by the degradation of IκB and the inhibition of the phosphorylation of mitogen-activated protein kinases (MAPK). In addition, ALDE showed enhanced radical scavenging activity. The antioxidant effect of ALDE was caused by the enhanced expression of heme oxygenase (HO-1) via stabilization of the expression of the nuclear transcription factor E2-related factor 2 (Nrf2) pathway. Collectively, these results indicated that ALDE not only exerts anti-inflammatory effects via the suppression of the NF-κB and MAPK pathways but also has an antioxidative effect through the activation of the Nrf2/HO-1 pathway.
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Affiliation(s)
- Jae Sung Lim
- Department of Biochemistry, Chonnam National University Medical School, Hwasun, Jeonnam-do 58128, Korea;
- Combinatorial Tumor Immunotherapy Medical Research Center, Chonnam National University Medical School, Hwasun, Jeonnam-do 58128, Korea;
| | - Sung Ho Lee
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Sang Rok Lee
- ROK-Biotech, Jeollanamdo Biopharmaceutical Research Center, Hwasun, Jeollanam-do 58141, Korea;
| | - Hyung-Ju Lim
- Combinatorial Tumor Immunotherapy Medical Research Center, Chonnam National University Medical School, Hwasun, Jeonnam-do 58128, Korea;
- Department of Microbiology, Chonnam National University Medical School, Hwasun, Jeonnam-do 58128, Korea
| | - Yoon-Seok Roh
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju 28160, Korea;
| | - Eun Jeong Won
- Department of Parasitology and Tropical Medicine, Chonnam National University Medical School, Hwasun, Jeonnam-do 58128, Korea;
| | - Namki Cho
- College of Pharmacy, Chonnam National University, Gwangju 61186, Korea;
| | - Changju Chun
- College of Pharmacy, Chonnam National University, Gwangju 61186, Korea;
- Correspondence: (C.C.); (Y.-C.C.); Tel.: +82-62-530-2944 (C.C.); +82-62-530-2925 (Y.-C.C.)
| | - Young-Chang Cho
- College of Pharmacy, Chonnam National University, Gwangju 61186, Korea;
- Correspondence: (C.C.); (Y.-C.C.); Tel.: +82-62-530-2944 (C.C.); +82-62-530-2925 (Y.-C.C.)
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Ren J, Su D, Li L, Cai H, Zhang M, Zhai J, Li M, Wu X, Hu K. Anti-inflammatory effects of Aureusidin in LPS-stimulated RAW264.7 macrophages via suppressing NF-κB and activating ROS- and MAPKs-dependent Nrf2/HO-1 signaling pathways. Toxicol Appl Pharmacol 2019; 387:114846. [PMID: 31790703 DOI: 10.1016/j.taap.2019.114846] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 11/17/2019] [Accepted: 11/28/2019] [Indexed: 12/19/2022]
Abstract
Aureusidin, a naturally-occurring flavonoid, is found in various plants of Cyperaceae such as Heleocharis dulcis (Burm. f.) Trin., but its pharmacological effect and active mechanism are rarely reported. This study aimed to investigate the anti-inflammatory effect and action mechanism of Aureusidin in LPS-induced mouse macrophage RAW264.7 cells. The results suggested that lipopolysaccharide (LPS)-induced nitric oxide (NO), tumor necrosis factor-α (TNF-α) and prostaglandin E2 (PGE2) production were obviously inhibited by Aureusidin. Moreover, Aureusidin also significantly decreased the mRNA expression of various inflammatory factors in LPS-stimulated RAW264.7 cells. Furthermore, mechanistic studies showed that Aureusidin significantly inhibited nuclear transfer of nuclear factor-κB (NF-κB), while increasing the nuclear translocation of nuclear factor E2-related factor 2 (Nrf2) as well as expression of Nrf2 target genes such as heme oxygenase (HO-1) and NAD(P)H:quinone oxidoreductase 1 (NQO1), but the addition of the HO-1 inhibitor Sn-protoporphyrin (Snpp) significantly abolished the anti-inflammatory effect of Aureusidin in LPS-stimulated RAW264.7 cells, confirming the view that HO-1 was involved in the anti-inflammatory effect. In addition, Aureusidin increased the levels of reactive oxygen species (ROS) and mitogen-activated protein kinase (MAPK) phosphorylation in RAW264.7 cells. Antioxidant N-acetylcysteine (NAC) or three MAPK inhibitors blocked the nuclear translocation of Nrf2 and HO-1 expression induced by Aureusidin, indicating that Aureusidin activated the Nrf2/HO-1 signaling pathway through ROS and MAPKs pathways. At the same time, co-treatment with the NAC blocked the phosphorylation of MAPKs. Results from molecular docking indicated that Aureusidin inhibited the NF-κB pathway by covalently binding to NF-κB. Thus, Aureusidin exerted the anti-inflammatory activity through blocking the NF-κB signaling pathways and activating the MAPKs and Nrf2/HO-1 signaling pathways. Based on the above results, Aureusidin may be an attractive therapeutic candidate for the inflammation-related diseases.
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Affiliation(s)
- Jie Ren
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China.
| | - Dan Su
- Changzhou No.2 People's Hospital, Changzhou, Jiangsu 213164, People's Republic of China.
| | - Lixia Li
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Heng Cai
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Meiju Zhang
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Jingchen Zhai
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Minyue Li
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Xinyue Wu
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Kun Hu
- School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
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Atractylodis Rhizoma Alba Attenuates Neuroinflammation in BV2 Microglia upon LPS Stimulation by Inducing HO-1 Activity and Inhibiting NF-κB and MAPK. Int J Mol Sci 2019; 20:ijms20164015. [PMID: 31426492 PMCID: PMC6720582 DOI: 10.3390/ijms20164015] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/11/2019] [Accepted: 08/15/2019] [Indexed: 02/06/2023] Open
Abstract
Microglial activation and the resulting neuroinflammation are associated with a variety of brain diseases, such as Alzheimer’s disease and Parkinson’s disease. Thus, the control of microglial activation is an important factor in the development of drugs that can treat or prevent inflammation-related neurodegenerative disorders. Atractylodis Rhizoma Alba (ARA) has been reported to exhibit antioxidant, gastroprotective, and anti-inflammatory effects. However, the effects of ARA ethanolic extract (ARAE) on microglia-mediated neuroinflammation have not been fully elucidated. In this work, we explored the anti-neuroinflammatory properties and underlying molecular mechanisms of ARAE in lipopolysaccharide (LPS)-stimulated microglial BV2 cells. Our results showed that ARAE significantly attenuates the production of nitric oxide (NO) and inflammatory cytokines induced by LPS. ARAE treatment also inhibited the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 without causing cytotoxicity. ARAE markedly attenuated the transcriptional activities of nuclear factor (NF)-κB and mitogen-activated protein kinases (MAPK) phosphorylation, and induced heme oxygenase (HO)-1 expression. High-performance liquid chromatography (HPLC) analysis showed that ARAE contains three main components—atractylenolide I, atractylenolide III, and atractylodin—all compounds that significantly inhibit the production of inflammatory factors. These findings indicate that ARAE may be a potential therapeutic agent for the treatment of inflammation-related neurodegenerative diseases.
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12
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Ren M, McGowan E, Li Y, Zhu X, Lu X, Zhu Z, Lin Y, He S. Saikosaponin-d Suppresses COX2 Through p-STAT3/C/EBPβ Signaling Pathway in Liver Cancer: A Novel Mechanism of Action. Front Pharmacol 2019; 10:623. [PMID: 31191326 PMCID: PMC6549044 DOI: 10.3389/fphar.2019.00623] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 05/15/2019] [Indexed: 01/30/2023] Open
Abstract
Saikosaponin-d (SSd) is an active extract from Radix Bupleuri, the dried root from the plant Bupleurum falcatum used in China for thousands of years to treat liver diseases. The SSd extract possesses valuable pharmacological activities including anti-cancer and anti-inflammatory effects; however, the mechanism underlying the anti-cancer activity of SSd is largely unknown. Here, we explored the mechanism of action of SSd as an anti-cancer agent for liver cancer in two human hepatocellular carcinoma cell lines. Using MTT and annexin-V-FITC/PI assays, Western blots, immunohistochemistry, qRT-PCR, luciferase reporter assay, and a JAK2-specific inhibitor (AG490), we demonstrated that the anti-tumorigenic effects of SSd act through the intermediatory p-STAT3/C/EBPβ signaling pathway to suppress cyclooxygenase (COX)-2. SSd effectively inhibited cell proliferation in a dose-dependent manner. Apoptosis was significantly increased in cells treated with SSd (2.5–15 µg/ml) with concurrent increase and decrease in pro- and anti-apoptosis proteins, respectively. COX-2, C/EBPβ, and p-STAT3 were significantly decreased, at both the translational and transcriptional levels, by SSd treatment. AG490 produced similar inhibitory effects on STAT3, p-STAT3, C/EBPβ, and COX-2. In conclusion, our data suggest that SSd controls liver cancer proliferation through suppression of the p-STAT3/C/EBPβ signaling pathway inhibiting COX2 expression. These findings further our understanding of the pharmacological action of SSd, providing new information on SSd mechanism of action and showing potential for SSd as a novel therapy for liver cancer.
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Affiliation(s)
- Mudan Ren
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China
| | - Eileen McGowan
- School of Life Sciences, University of Technology Sydney, Broadway, NSW, Australia
| | - Yarui Li
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China
| | - Xiaofeng Zhu
- Department of Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xinlan Lu
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China
| | - Zhanfang Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China
| | - Yiguang Lin
- School of Life Sciences, University of Technology Sydney, Broadway, NSW, Australia
| | - Shuixiang He
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China
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13
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Abdel-Zaher AO, Abd-Ellatief RB, Aboulhagag NA, Farghaly HSM, Al-Wasei FMM. The interrelationship between gasotransmitters and lead-induced renal toxicity in rats. Toxicol Lett 2019; 310:39-50. [PMID: 30980911 DOI: 10.1016/j.toxlet.2019.04.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/06/2019] [Accepted: 04/08/2019] [Indexed: 12/18/2022]
Abstract
This study explored the role of gasotransmitters in lead-induced nephrotoxicity. Long-term exposure of rats to lead resulted in its accumulation in kidney. The accumulated metal impaired kidney function and structure. Lead intoxication resulted in oxidative stress, inflammation and apoptosis in kidney. In addition, it resulted in nitric oxide (NO) overproduction and decrease in hydrogen sulfide (H2S) level and heme oxygenase (HO-1) concentration in kidney. Inhibition of NO overproduction by L-N(G)-nitroarginine methyl ester (L-NAME) and increasing of H2S level by sodium hydrosulfide (NaHS) and CO level by carbon monoxide-releasing molecule-A1 (CORM-A1) inhibited lead-induced impairment of kidney function and structure. These agents inhibited lead-intoxication induced oxidative stress, inflammation, apoptosis, nitrosative stress and reduction of H2S level and HO-1 concentration. Also, concomitant treatment with these agents inhibited lead intoxication-induced increase in protein expressions of inducible NO synthase (iNOS), tumor necrosis factor-alpha (TNF-α), interleukin-1beta (IL-1β) and caspase-3 as well as decrease in protein expressions of HO-1 and cystathionine- γ-lyase (CSE) in kidney. The NO donor, L-arginine and the H2S and CO biosynthesis inhibitors, trifluoro-DL-alanine and zinc deutroporphyrin, respectively produced opposite effects and aggravated the toxic effects of lead. These results demonstrate, for the first time, that gasotransmitters play an important role in lead-induced nephrotoxicity.
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Affiliation(s)
- Ahmed O Abdel-Zaher
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt.
| | - Rasha B Abd-Ellatief
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Noha A Aboulhagag
- Department of Patholology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Hanan S M Farghaly
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Fahmy M M Al-Wasei
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
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14
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Jung YW, Lee BM, Ha MT, Tran MH, Kim JA, Lee S, Lee JH, Woo MH, Min BS. Lignans from Saururus chinensis exhibit anti-inflammatory activity by influencing the Nrf2/HO-1 activation pathway. Arch Pharm Res 2019; 42:332-343. [DOI: 10.1007/s12272-018-1093-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/16/2018] [Indexed: 01/17/2023]
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15
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Jiang L, Jiang Q, Yang S, Huang S, Han X, Duan J, Pan S, Zhao M, Guo S. GYY4137 attenuates LPS-induced acute lung injury via heme oxygenase-1 modulation. Pulm Pharmacol Ther 2018; 54:77-86. [PMID: 30605726 DOI: 10.1016/j.pupt.2018.12.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 12/16/2018] [Accepted: 12/30/2018] [Indexed: 12/16/2022]
Abstract
GYY4137, a slow-releasing hydrogen sulfide (H2S) donor, has been reported to exert anti-inflammatory activity and protect against sepsis. Heme oxygenase-1 (HO-1) is an important anti-inflammatory heat shock protein and plays a similar effect on sepsis. This study investigated the role of GYY4137 in acute lung injury (ALI) via HO-1 regulation. Lung injury was assessed in mice challenged with intratracheal lipopolysaccharide (LPS) and the mechanism of anti-inflammatory effects of GYY4137 was investigated in mice and RAW264.7 cells. GYY4137 reduced the LPS-mediated pulmonary injury and neutrophil infiltration, and inhibited the LPS-induced production of proinflammatory cytokines, inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression. Moreover, GYY4137 suppressed the LPS-evoked NF-κB activation in RAW264.7 cells. GYY4137, not time-expired GYY4137 significantly induced HO-1 expression compared with the LPS group. The beneficial effects of GYY4137 above were reversed by the HO-1 inhibitor tin protoporphyrin (SnPP). These results suggest an anti-inflammatory effect and a therapeutic role of GYY4137 in LPS-induced ALI via HO-1 regulation.
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Affiliation(s)
- Lei Jiang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qing Jiang
- School of Statistics, Beijing Normal University, Beijing, China
| | - Songlin Yang
- Department of ICU, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shicong Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoli Han
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Duan
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shangha Pan
- The Key Hepatosplenic Surgery Laboratory, Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingyan Zhao
- Department of ICU, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Shuliang Guo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Lee DS, Kwon KH, Cheong SH. Taurine Chloramine Suppresses LPS-Induced Neuroinflammatory Responses through Nrf2-Mediated Heme Oxygenase-1 Expression in Mouse BV2 Microglial Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 1:131-143. [PMID: 28849450 DOI: 10.1007/978-94-024-1079-2_12] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
The brain is sensitive to the inflammation and oxidative stress that can cause the aging or neurodegenerative diseases. We investigated the anti-neuroinflammatory activities of taurine chloramine (TauCl) on lipopolysaccharide (LPS)-treated mouse BV2 microglia mediated through heme oxygenase (HO)-1 expression. TauCl inhibited the protein expressions of prostaglandin E2 (PGE2), cyclooxygenase (COX)-2, nitric oxide (NO), and inducible nitric oxide synthase (iNOS) in LPS-treated BV2 microglia. TauCl markedly inhibited interleukin-6 (IL-6), interleukin-1𝛽 (IL-1𝛽) and tumor necrosis factor-𝛼 (TNF-𝛼) production. These effects were related to the suppression of the degradation and phosphorylation of inhibition of nuclear factor kappa B-𝛼 (I𝜅B-𝛼), translocation of nuclear factor kappa B (NF-𝜅B) as well as DNA binding activity. In addition, TauCl induced the HO-1 expression by increasing the nuclear factor E2-related factor 2 (Nrf2) translocation to the nucleus in mouse BV2 microglia. These findings suggest that TauCl has protective effects of neurodegenerative disorders caused by neuroinflammation.
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Affiliation(s)
- Dong-Sung Lee
- College of Pharmacy, Chosun University, Dong-gu, Gwangju, 61452, South Korea
| | - Ki Han Kwon
- Division of Food Science and Nutrition, Graduate School of Biohealth Science, Gwangju University, Gwangju, 61743, South Korea
- Department of Food Science and Nutrition, College of Health, Welfare, and Education, Gwangju University, Gwangju, 61743, South Korea
| | - Sun Hee Cheong
- Department of Marine Bio Food Science, College of Fisheries and Ocean Science, Chonnam National University, Yeosu, 550-749, South Korea.
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17
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Wang Z, Fang M, Guo J, Yang Y, Tian F. The analysis on the expression of gasotransmitters in early trauma patients. ACTA ACUST UNITED AC 2018; 63:988-993. [PMID: 29451663 DOI: 10.1590/1806-9282.63.11.988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 03/12/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Nitric oxide (NO), carbon monoxide (CO) and hydrogen sulfide (H2S) were endogenously-generated molecules gas. They owned important biological activity and participated in many pathophysiological processes. This study aimed to examine the levels of three gasotransmitters in the early phase of trauma patients. METHOD Blood samples were collected from 60 trauma patients and ten healthy volunteers. Concentration of serum iNOS and HO-1 were analyzed by enzyme linked immunosorbent assay and plasma H2S was determined by colorimetric method. Meanwhile, the occurrence of multiple organ dysfunction syndrome (MODS) was also monitored. RESULTS The levels of iNOS, HO-1 and endogenous H2S in the patients group were significantly different from the healthy control group, and the difference was more obvious with the increase of ISS score. iNOS levels were positively correlated with ISS scores and blood lactic acid values, and HO-1 and endogenous H2S were negatively correlated with ISS scores and blood lactic acid values. Of 60 trauma patients, eight (13.33%) developed MODS. The level of iNOS in the MODS group was higher than that in non-MODS group, while HO-1 and H2S were significant lower in the MODS group. CONCLUSION The three gasotransmitters participated in systemic inflammatory responses during early trauma and could be used as important indicators for trauma severity. Their measurements were meaningful for evaluating the severity and prognosis of trauma.
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Affiliation(s)
- Zhiyong Wang
- Department of Critical Care Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Mignxing Fang
- Department of Critical Care Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jianying Guo
- Department of Critical Care Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yong Yang
- Department of Critical Care Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Fengjun Tian
- Department of Respiratory, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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18
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Izumi Y. [Anti-inflammatory action of the transcription factor Nrf2]. Nihon Yakurigaku Zasshi 2018; 152:209. [PMID: 30298844 DOI: 10.1254/fpj.152.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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19
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Li C, Yang F, Liu F, Li D, Yang T. NRF2/HO-1 activation via ERK pathway involved in the anti-neuroinflammatory effect of Astragaloside IV in LPS induced microglial cells. Neurosci Lett 2017; 666:104-110. [PMID: 29273400 DOI: 10.1016/j.neulet.2017.12.039] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/05/2017] [Accepted: 12/18/2017] [Indexed: 10/18/2022]
Abstract
The anti-neuroinflammatory effect of Astragaloside IV (ASI) has been reported, but its underlying mechanisms are unclear. This study is further to explore the underlying mechanism of ASI on anti-neuroinflammatory effect in LPS induced microglia cells. The result showed ASI significantly reduced the production of inflammatory mediators NO, TNF-α and IL-6 in BV2 and primary microglial cells. Western blot analysis showed ASI did not inhibit the MAPK activation, on the contrary, the results showed ASI can obviously induce the ERK activation. We also examined the NRF2 and HO-1 activation which were reported to exert anti-neuroinflammatory effect and the results presented it could induce the activation of HO-1 downstream NRF2 in BV2 microglial cells. Further study indicated the NRF2/HO-1 activation via ERK pathway activation. After NRF2 siRNA or HO-1 inhibitor treatment, the anti-neuroinflammatory effect of ASI was attenuated obviously compared with the normal group. Taken together, this study demonstrated that the activation of NRF2/HO-1 via ERK signaling pathway is a novel mechanism of ASI which exerted anti-neuroinflammatory activity in microglia cells, it could be an attractive candidate for the regulation of inflammatory responses in the brain.
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Affiliation(s)
- Congjin Li
- Department of Neurosurgery, Ankang Central Hospital, Ankang, Shaanxi, China.
| | - Fanglin Yang
- Department of Emergency Medicine, Ankang Central Hospital, Ankang, Shaanxi, China
| | - Feng Liu
- Department of Neurosurgery, Ankang Central Hospital, Ankang, Shaanxi, China
| | - Dongbo Li
- Department of Neurosurgery, Ankang Central Hospital, Ankang, Shaanxi, China
| | - Tao Yang
- Department of Neurosurgery, Ankang Central Hospital, Ankang, Shaanxi, China
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20
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Kim KW, Kim HJ, Sohn JH, Yim JH, Kim YC, Oh H. Anti-neuroinflammatory effect of 6,8,1'-tri-O-methylaverantin, a metabolite from a marine-derived fungal strain Aspergillus sp., via upregulation of heme oxygenase-1 in lipopolysaccharide-activated microglia. Neurochem Int 2017; 113:8-22. [PMID: 29174381 DOI: 10.1016/j.neuint.2017.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/06/2017] [Accepted: 11/20/2017] [Indexed: 12/30/2022]
Abstract
In the course of searching for anti-neuroinflammatory metabolites from marine-derived fungi, three fungal metabolites, 6,8,1'-tri-O-methylaverantin, 6,8-di-O-methylaverufin, and 5-methoxysterigmatocystin were isolated from a marine-derived fungal strain Aspergillus sp. SF-6796. Among these, 6,8,1'-tri-O-methylaverantin induced the expression of heme oxygenase (HO)-1 protein in BV2 microglial cells. The induction of HO-1 protein was mediated by the activation of nuclear transcription factor erythroid-2 related factor 2 (Nrf2), and was regulated by the p38 mitogen-activated protein kinase and phosphatidylinositol 3-kinase/protein kinase B signaling pathways. Furthermore, 6,8,1'-tri-O-methylaverantin suppressed the overproduction of pro-inflammatory mediators, such as nitric oxide, prostaglandin E2, inducible nitric oxide synthase, and cyclooxygenase-2 in lipopolysaccharide (LPS)-stimulated BV2 microglial cells. These anti-neuroinflammatory effects were mediated through the negative regulation of the nuclear factor kappa B pathway, repressing the phosphorylation and degradation of inhibitor kappa B-α, translocation into the nucleus of p65/p50 heterodimer, and DNA-binding activity of p65 subunit. The anti-neuroinflammatory effect of 6,8,1'-tri-O-methylaverantin was partially blocked by a selective HO-1 inhibitor, suggesting that its anti-neuroinflammatory effect is at least partly mediated by HO-1 induction. In this study, 6,8,1'-tri-O-methylaverantin also induced HO-1 protein expression in primary microglial cells, and this correlated with anti-neuroinflammatory effects observed in LPS-stimulated primary microglial cells. In conclusion, 6,8,1'-tri-O-methylaverantin represents a potential candidate for use in the development of therapeutic agents for the regulation of neuroinflammation in neurodegenerative diseases.
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Affiliation(s)
- Kwan-Woo Kim
- College of Pharmacy, Wonkwang University, Iksan 54538, Republic of Korea
| | - Hye Jin Kim
- College of Pharmacy, Wonkwang University, Iksan 54538, Republic of Korea
| | - Jae Hak Sohn
- College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Joung Han Yim
- Korea Polar Research Institute, KORDI, Yeonsu-gu, Incheon 21990, 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.
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Sun Z, Li G, Tong T, Chen J. Micheliolide suppresses LPS-induced neuroinflammatory responses. PLoS One 2017; 12:e0186592. [PMID: 29040306 PMCID: PMC5645131 DOI: 10.1371/journal.pone.0186592] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 10/04/2017] [Indexed: 11/18/2022] Open
Abstract
Microglia-involved neuroinflammation is thought to promote brain damage in various neurodegenerative disorders. Thus, inhibition of microglial over-activation may have a therapeutic benefit for the treatment of neurodegenerative disorders. Micheliolide (MCL) is a sesquiterpene lactone which inhibits various inflammatory response. However, whether MCL can inhibit neuroinflammation caused by LPS-activated BV2 microglia has not yet been explored. In this study, we demonstrated that treatment of BV2 cells with MCL significantly repressed LPS-stimulated nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression, as well as tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and nitric oxide (NO) induction. MCL also attenuated mRNA levels of multiple pro-inflammatory cytokines and mediators such as iNOS, COX-2, TNF-α, IL-6 and IL-1β. Mechanistic studies revealed that MCL suppressed LPS-stimulated the activation of IκBα/NF-κB pathway and Akt pathway. Moreover, MCL inhibited LPS-induced the activition of c-Jun N-terminal kinase (JNK), p38 MAPK kinase, and extracellular signal-regulated kinases 1/2 (ERK1/2). Meanwhile, MCL markedly promoted antioxidant protein heme oxygenase-1 (HO-1) expression by enhancing NF-E2-related factor 2 (Nrf2) activity. Together, our results imply that MCL may serve as a neuroprotective agent in neuroinflammation-related neurodegenerative disorders.
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Affiliation(s)
- Zhaomeng Sun
- Peking University Research Center on Aging, Beijing, China.,Department of Biochemistry and Molecular Biology Peking University Health Science Center, Beijing, China
| | - Guodong Li
- Peking University Research Center on Aging, Beijing, China.,Department of Biochemistry and Molecular Biology Peking University Health Science Center, Beijing, China
| | - Tanjun Tong
- Peking University Research Center on Aging, Beijing, China.,Department of Biochemistry and Molecular Biology Peking University Health Science Center, Beijing, China
| | - Jun Chen
- Peking University Research Center on Aging, Beijing, China.,Department of Biochemistry and Molecular Biology Peking University Health Science Center, Beijing, China
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22
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Kim DC, Lee DS, Ko W, Kim KW, Kim HJ, Yoon CS, Oh H, Kim YC. Heme Oxygenase-1-Inducing Activity of 4-Methoxydalbergione and 4'-Hydroxy-4-methoxydalbergione from Dalbergia odorifera and Their Anti-inflammatory and Cytoprotective Effects in Murine Hippocampal and BV2 Microglial Cell Line and Primary Rat Microglial Cells. Neurotox Res 2017; 33:337-352. [PMID: 28836188 DOI: 10.1007/s12640-017-9796-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 08/05/2017] [Accepted: 08/10/2017] [Indexed: 12/20/2022]
Abstract
Dalbergia odorifera T. Chen (Leguminosae) grows in Central and South America, Africa, Madagascar, and Southern Asia. D. odorifera possesses many useful pharmacological properties, such as antioxidative and anti-inflammatory activities in various cell types. 4-Methoxydalbergione (MTD) and 4'-hydroxy-4-methoxydalbergione (HMTD) were isolated from the EtOH extract of D. odorifera by several chromatography methods. The chemical structures were elucidated by nuclear magnetic resonance (NMR) and mass spectrum (MS). Anti-inflammatory and cytoprotective effects were examined using BV2 microglial cells and murine hippocampus. MTD and HMTD were demonstrated to induce heme oxygenase (HO)-1 protein levels through the nuclear translocation of nuclear factor E2-related factor 2 (Nrf2) in BV2 microglial cells, while only MTD upregulated HO-1 in HT22 cells. MTD and HMTD induced HO-1 expression through JNK MAPK pathway in BV2 cells, whereas only MTD activated the ERK and p38 pathways in HT22 cells. MTD was also shown to activated MTD and HMTD suppressed lipopolysaccharide-stimulated nitric oxide (NO) and prostaglandin E2 production by inhibiting inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) expression in a dose-dependent manner. Furthermore, MTD and HMTD attenuated pro-inflammatory cytokine productions. These anti-inflammatory effects were found to be mediated through the nuclear factor-kappa B (NF-κB) pathway. MTD exhibited neuroprotective effects on glutamate-induced neurotoxicity by promoting HO-1 in HT22 cells. The anti-inflammatory and cytoprotective effects of MTD and HMTD were partially reversed by an HO inhibitor tin protoporphyrin IX. In addition, MTD and HMTD inhibited pro-inflammatory cytokines and NF-κB pathway in primary rat microglia. These findings suggest that MTD and HMTD have therapeutic potential against neurodegenerative diseases accompanied by microglial activation and/or oxidative cellular injury.
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Affiliation(s)
- Dong-Cheol Kim
- 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
| | - Wonmin Ko
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Kwan-Woo Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Hye Jin Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Chi-Su Yoon
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea.,Hanbang Body-Fluid Research Center, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Youn-Chul Kim
- College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea. .,Hanbang Body-Fluid Research Center, Wonkwang University, Iksan, 54538, Republic of Korea.
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23
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Bigagli E, Cinci L, D'Ambrosio M, Luceri C. Pharmacological activities of an eye drop containing Matricaria chamomilla and Euphrasia officinalis extracts in UVB-induced oxidative stress and inflammation of human corneal cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:618-625. [PMID: 28704790 DOI: 10.1016/j.jphotobiol.2017.06.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/19/2017] [Accepted: 06/23/2017] [Indexed: 12/14/2022]
Abstract
Ultraviolet B (UVB) exposure is a risk factor for corneal damage resulting in oxidative stress, inflammation and cell death. The aim of this study was to investigate the potential protective effects of a commercial eye drop (Dacriovis™) containing Matricaria chamomilla and Euphrasia officinalis extracts on human corneal epithelial cells (HCEC-12) against UVB radiation-induced oxidative stress and inflammation as well as the underlying mechanisms. The antioxidant potential of the eye drops was evaluated by measuring the ferric reducing antioxidant power and the total phenolic content by Folin-Ciocalteu reagent. HCEC-12 cells were exposed to UVB radiation and treated with the eye drops at various concentrations. Cell viability, wound healing assay, reactive oxygen species (ROS) levels, protein and lipid oxidative damage and COX-2, IL-1β, iNOS, SOD-2, HO-1 and GSS gene expression, were assessed. Eye drops were able to protect corneal epithelial cells from UVB-induced cell death and ameliorated the wound healing; the eye drops exhibited a strong antioxidant activity, decreasing ROS levels and protein and lipid oxidative damage. Eye drops also exerted anti-inflammatory activities by decreasing COX-2, IL-1β, iNOS expression, counteracted UVB-induced GSS and SOD-2 expression and restored HO-1 expression to control levels. These findings suggest that an eye drop containing Matricaria chamomilla and Euphrasia officinalis extracts exerts positive effects against UVB induced oxidative stress and inflammation and may be useful in protecting corneal epithelial cells from UVB exposure.
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Affiliation(s)
- Elisabetta Bigagli
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Lorenzo Cinci
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Mario D'Ambrosio
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Cristina Luceri
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy.
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Bukowska-Strakova K, Ciesla M, Szade K, Nowak WN, Straka R, Szade A, Tyszka-Czochara M, Najder K, Konturek A, Siedlar M, Dulak J, Jozkowicz A. Reprint of: Heme oxygenase 1 affects granulopoiesis in mice through control of myelocyte proliferation. Immunobiology 2017; 222:846-857. [PMID: 28576353 DOI: 10.1016/j.imbio.2017.05.006] [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: 08/09/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 11/29/2022]
Abstract
Heme oxygenase-1 (HO-1) is stress-inducible, cytoprotective enzyme degrading heme to carbon monoxide (CO), biliverdin and Fe2+. We showed that HO-1 knock-out mice (HO-1-/-) have a twofold higher level of granulocytes than wild type (WT) mice, despite decreased concentration of granulocyte colony-stimulating factor (G-CSF) in the blood and reduced surface expression of G-CSF receptor on the hematopoietic precursors. This suggests the effect of HO-1 on granulopoiesis. Here we aimed to determine the stage of granulopoiesis regulated by HO-1. The earliest stages of hematopoiesis were not biased toward myeloid differentiation in HO-1-/- mice. Within committed granulocytic compartment, in WT mice, HO-1 was up-regulated starting from myelocyte stage. This was concomitant with up-regulation of miR-155, which targets Bach1, the HO-1 repressor. In HO-1-/- mice granulopoiesis was accelerated between myelocyte and metamyelocyte stage. There was a higher fraction of proliferating myelocytes, with increased nuclear expression of pro-proliferative C/EBPβ (CCAAT/enhancer binding protein beta) protein, especially its active LAP (liver-enriched activator proteins) isoform. Also our mathematical model confirmed shortening the myelocyte cyclic-time and prolonged mitotic expansion in absence of HO-1. It seems that changes in C/EBPβ expression and activity in HO-1-/- myelocytes can be associated with reduced level of its direct repressor miR-155 or with decreased concentration of CO, known to reduce nuclear translocation of C/EBPs. Mature HO-1-/- granulocytes were functionally competent as determined by oxidative burst capacity. In conclusion, HO-1 influences granulopoiesis through regulation of myelocyte proliferation. It is accompanied by changes in expression of transcriptionally active C/EBPβ protein. As HO-1 expression vary in human and is up-regulated in response to chemotherapy, it can potentially influence chemotherapy-induced neutropenia.
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Affiliation(s)
- Karolina Bukowska-Strakova
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Clinical Immunology and Transplantology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Maciej Ciesla
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Krzysztof Szade
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Witold Norbert Nowak
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Robert Straka
- AGH University of Science and Technology, Faculty of Metal Engineering and Industrial Computer Science, Department of Heat Engineering and Environment Protection, Poland
| | - Agata Szade
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Malgorzata Tyszka-Czochara
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Karolina Najder
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Anna Konturek
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology and Transplantology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Jozef Dulak
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Alicja Jozkowicz
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
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Hesperetin Suppresses Inflammatory Responses in Lipopolysaccharide-Induced RAW 264.7 Cells via the Inhibition of NF-κB and Activation of Nrf2/HO-1 Pathways. Inflammation 2017; 39:964-73. [PMID: 26994999 DOI: 10.1007/s10753-016-0311-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hesperetin (Hesp), a common flavanone glycoside, was extracted from the fruit peel of Citrus aurantium L. (Rutaceae). Hesp has been shown to possess various biological properties, including antioxidant, neuroprotective, and anti-inflammatory properties. In this study, we investigated the protective effect of Hesp on inflammatory responses in lipopolysaccharide (LPS)-induced RAW 264.7 cells. Our results indicated that Hesp treatment dramatically suppressed secretion of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β; reduced inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) gene expression; inhibited NF-κB (p65) phosphorylation; and blocked IκBα phosphorylation and degradation. Further studies revealed Hesp markedly enhanced the heme oxygenase (HO)-1 and nuclear factor erythroid 2-related factor 2 (Nrf2) expression, which were involved with inducing Nrf2 nuclear translocation and decreasing Keap1 protein expression. Together, these results indicated that the anti-inflammatory effect of Hesp may be associated with NF-κB inhibition and Nrf2/HO-1 activation.
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Low Concentration of Exogenous Carbon Monoxide Modulates Radiation-Induced Bystander Effect in Mammalian Cell Cluster Model. Int J Mol Sci 2016; 17:ijms17122051. [PMID: 27941646 PMCID: PMC5187851 DOI: 10.3390/ijms17122051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 11/24/2016] [Accepted: 12/01/2016] [Indexed: 01/18/2023] Open
Abstract
During radiotherapy procedures, radiation-induced bystander effect (RIBE) can potentially lead to genetic hazards to normal tissues surrounding the targeted regions. Previous studies showed that RIBE intensities in cell cluster models were much higher than those in monolayer cultured cell models. On the other hand, low-concentration carbon monoxide (CO) was previously shown to exert biological functions via binding to the heme domain of proteins and then modulating various signaling pathways. In relation, our previous studies showed that exogenous CO generated by the CO releasing molecule, tricarbonyldichlororuthenium (CORM-2), at a relatively low concentration (20 µM), effectively attenuated the formation of RIBE-induced DNA double-strand breaks (DSB) and micronucleus (MN). In the present work, we further investigated the capability of a low concentration of exogenous CO (CORM-2) of attenuating or inhibiting RIBE in a mixed-cell cluster model. Our results showed that CO (CORM-2) with a low concentration of 30 µM could effectively suppress RIBE-induced DSB (p53 binding protein 1, p53BP1), MN formation and cell proliferation in bystander cells but not irradiated cells via modulating the inducible nitric oxide synthase (iNOS) andcyclooxygenase-2 (COX-2). The results can help mitigate RIBE-induced hazards during radiotherapy procedures.
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27
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Lv H, Ren W, Zheng Y, Wang L, Lu G, Yi P, Ci X. Tenuigenin exhibits anti-inflammatory activity via inhibiting MAPK and NF-κB and inducing Nrf2/HO-1 signaling in macrophages. Food Funct 2016; 7:355-63. [PMID: 26499342 DOI: 10.1039/c5fo00807g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Tenuigenin (TNG), isolated from the root of the Chinese herb Polygala tenuifolia, possesses various biological and pharmacological activities, including anti-oxidation and anti-inflammation activities. In this study, we aimed to further investigate whether its anti-inflammatory activity is associated with the inhibition of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression in lipopolysaccharide (LPS)-induced RAW 264.7 cells. Our results showed that TNG treatment dramatically reduced prostaglandin E2 (PGE2) and NO production, decreased iNOS and COX-2 gene expression, inhibited JNK1/2, ERK1/2, p38 and NF-κB (p65) phosphorylation, and blocked IκBα phosphorylation and degradation. Further studies revealed that TNG dramatically up-regulated heme oxygenase (HO)-1 and nuclear factor erythroid 2-related factor 2 (Nrf2) expression, which was related to the induction of Nrf2 nuclear translocation and decreased Keap1 protein expression. Additionally, treatment with JNK1/2, ERK1/2 or p38 inhibitors had no effect on the TNG-induced HO-1 protein expression. Furthermore, the LPS-induced iNOS and COX-2 expression levels were inhibited by TNG, which was partially reversed by the HO-1-siRNA and HO-1 inhibitors. Together, these results showed that TNG's anti-inflammatory activity is related to the inhibition of iNOS and COX-2 expression via down-regulation of the MAPK and NF-κB, and up-regulation of the Nrf2/HO-1 signaling pathways.
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Affiliation(s)
- Hongming Lv
- College of Veterinary Medicine, Jilin University, Changchun 130062, PR China.
| | - Wenzhi Ren
- College of Animal sciences, Jilin University, Changchun 130062, PR China
| | - Yuwei Zheng
- College of Veterinary Medicine, Jilin University, Changchun 130062, PR China.
| | - Lidong Wang
- College of Animal sciences, Jilin University, Changchun 130062, PR China
| | - Gejin Lu
- College of Veterinary Medicine, Jilin University, Changchun 130062, PR China.
| | - Pengfei Yi
- College of Veterinary Medicine, Jilin University, Changchun 130062, PR China.
| | - Xinxin Ci
- College of Veterinary Medicine, Jilin University, Changchun 130062, PR China. and Institutes of Translational Medicine, the First Hospital, Jilin University, Changchun, 130001, PR China.
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28
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Bukowska-Strakova K, Ciesla M, Szade K, Nowak WN, Straka R, Szade A, Tyszka-Czochara M, Najder K, Konturek A, Siedlar M, Dulak J, Jozkowicz A. Heme oxygenase 1 affects granulopoiesis in mice through control of myelocyte proliferation. Immunobiology 2016; 222:506-517. [PMID: 27817989 DOI: 10.1016/j.imbio.2016.10.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 12/12/2022]
Abstract
Heme oxygenase-1 (HO-1) is stress-inducible, cytoprotective enzyme degrading heme to carbon monoxide (CO), biliverdin and Fe2+. We showed that HO-1 knock-out mice (HO-1-/-) have a twofold higher level of granulocytes than wild type (WT) mice, despite decreased concentration of granulocyte colony-stimulating factor (G-CSF) in the blood and reduced surface expression of G-CSF receptor on the hematopoietic precursors. This suggests the effect of HO-1 on granulopoiesis. Here we aimed to determine the stage of granulopoiesis regulated by HO-1. The earliest stages of hematopoiesis were not biased toward myeloid differentiation in HO-1-/- mice. Within committed granulocytic compartment, in WT mice, HO-1 was up-regulated starting from myelocyte stage. This was concomitant with up-regulation of miR-155, which targets Bach1, the HO-1 repressor. In HO-1-/- mice granulopoiesis was accelerated between myelocyte and metamyelocyte stage. There was a higher fraction of proliferating myelocytes, with increased nuclear expression of pro-proliferative C/EBPβ (CCAAT/enhancer binding protein beta) protein, especially its active LAP (liver-enriched activator proteins) isoform. Also our mathematical model confirmed shortening the myelocyte cyclic-time and prolonged mitotic expansion in absence of HO-1. It seems that changes in C/EBPβ expression and activity in HO-1-/- myelocytes can be associated with reduced level of its direct repressor miR-155 or with decreased concentration of CO, known to reduce nuclear translocation of C/EBPs. Mature HO-1-/- granulocytes were functionally competent as determined by oxidative burst capacity. In conclusion, HO-1 influences granulopoiesis through regulation of myelocyte proliferation. It is accompanied by changes in expression of transcriptionally active C/EBPβ protein. As HO-1 expression vary in human and is up-regulated in response to chemotherapy, it can potentially influence chemotherapy-induced neutropenia.
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Affiliation(s)
- Karolina Bukowska-Strakova
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Clinical Immunology and Transplantology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Maciej Ciesla
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Krzysztof Szade
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Witold Norbert Nowak
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Robert Straka
- AGH University of Science and Technology, Faculty of Metal Engineering and Industrial Computer Science, Department of Heat Engineering and Environment Protection, Poland
| | - Agata Szade
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Malgorzata Tyszka-Czochara
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
| | - Karolina Najder
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Anna Konturek
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology and Transplantology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Jozef Dulak
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Alicja Jozkowicz
- Department of Medical Biotechnology, Faculty Of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
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Yoo SR, Kim Y, Lee MY, Kim OS, Seo CS, Shin HK, Jeong SJ. Gyeji-tang water extract exerts anti-inflammatory activity through inhibition of ERK and NF-κB pathways in lipopolysaccharide-stimulated RAW 264.7 cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:390. [PMID: 27733198 PMCID: PMC5062814 DOI: 10.1186/s12906-016-1366-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 09/23/2016] [Indexed: 12/20/2022]
Abstract
Background Gyeji-tang (GJT, Guizhi Tang in Chinese, Keishi-to in Japanese) is a traditional herbal decoction composed of 5 medicinal herbs. GJT has been used to treat the common cold, headaches, and fever in Asian countries including Korea, China, and Japan. In the present study, we investigated the inhibitory effect of a water extract of GJT on inflammatory response using the murine macrophage cell line, RAW 264.7. Methods RAW 264.7 macrophages were treated with lipopolysaccharide (LPS) to upregulate inflammatory genes. Cells were pretreated with various concentrations of GJT for 4 h and stimulated with LPS for an additional 20 h. Productions of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), cyclooxygenase-2 (COX-2), and prostaglandin E2 (PGE2) were measured by enzyme-linked immunosorbent assays (ELISAs). Protein expressions of heme oxygenase (HO)-1, extracellular signal-regulated kinase (ERK), and nuclear factor kappa-B (NF-κB) were analyzed by immunoblotting. Results Treatment with the GJT extract enhanced expression of HO-1 in macrophages without cytotoxicity. GJT extract significantly inhibited proinflammatory cytokines TNF-α and IL-6 in LPS-stimulated cells. GJT suppressed LPS-induced COX-2 expression, leading to a decrease in COX-2-derived PGE2 level. In addition, GJT extract prevented phosphorylation of ERK and NF-κB translocalization to the nucleus in LPS-treated RAW 264.7 cells. Conclusion These data suggest that GJT has anti-inflammatory possibly through blocking ERK and NF-κB signaling pathways.
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30
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Lee DS, Jeong GS. Butein provides neuroprotective and anti-neuroinflammatory effects through Nrf2/ARE-dependent haem oxygenase 1 expression by activating the PI3K/Akt pathway. Br J Pharmacol 2016; 173:2894-909. [PMID: 27465039 PMCID: PMC5055139 DOI: 10.1111/bph.13569] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 07/12/2016] [Accepted: 07/16/2016] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Butein, 3,4,2',4'-tetrahydroxychalcone, has various pharmacological effects. However, no study has demonstrated the specific neurobiological mechanisms of the effects of butein in neuronal cells. The present study examined the role of butein as an antioxidative and anti-inflammatory inducer of haem oxygenase 1 (HO1) in mouse hippocampal HT22, BV2 microglial and primary mouse hippocampus neurons. EXPERIMENTAL APPROACH We investigated the neuroprotective effects of butein on glutamate-induced HT22 cell and primary mouse hippocampal neuron death and its anti-neuroinflammatory effects on LPS-induced activation of BV2 cells. We elucidated the underlying mechanisms by assessing the involvement of NF-κB, HO1, nuclear factor-E2-related factor 2 (Nrf2) and Akt signalling. KEY RESULTS Butein decreased cellular oxidative injury and the production of ROS in glutamate-treated HT22 cells and primary mouse hippocampal neurons. Furthermore, butein suppressed LPS-induced pro-inflammatory enzymes and mediators in BV2 microglia. Butein inhibited IL-6, IL-1β and TNF-α production and mRNA expression. In addition, butein decreased NO and PGE2 production and inducible NOS and COX-2 expression through the NF-κB signalling pathway. Butein up-regulated Nrf2/ARE-mediated HO1 expression through the PI3K/Akt pathway and this was positively associated with its cytoprotective effects and anti-neuroinflammatory actions. CONCLUSION AND IMPLICATIONS Our results indicate that butein effectively prevents glutamate-induced oxidative damage and LPS-induced activation and that the induction of HO1 by butein through the PI3K/Akt pathway and Nrf2 activation appears to play a pivotal role in its effects on neuronal cells. Our results provide evidence for the neuroprotective properties of butein.
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Affiliation(s)
- Dong-Sung Lee
- College of Pharmacy, Chosun University, Gwangju, Korea
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31
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Adesso S, Pepe G, Sommella E, Manfra M, Scopa A, Sofo A, Tenore GC, Russo M, Di Gaudio F, Autore G, Campiglia P, Marzocco S. Anti-inflammatory and antioxidant activity of polyphenolic extracts from Lactuca sativa (var. Maravilla de Verano) under different farming methods. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:4194-206. [PMID: 26777118 DOI: 10.1002/jsfa.7622] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 12/16/2015] [Accepted: 01/07/2016] [Indexed: 05/23/2023]
Abstract
BACKGROUND Besides their nutritional value, vegetables are a source of health-promoting compounds, such as polyphenols, and their content can be influenced by the particular farming method. In this study polyphenolic extracts from Lactuca sativa (var. Maravilla de verano) plants cultivated with different farming methods were chemically characterised and tested in vitro and ex vivo inflammation models. RESULTS The tested extacts (250-2.5 µg mL(-1) ) were able to reduce both the inflammatory and oxidative stress in LPS-stimulated J774A.1 murine monocyte macrophage cells, by lowering the release of nitric oxide (NO) and reactive oxygen species (ROS) and promoting nuclear translocation of nuclear factor (erythroid-derived 2)-like 2; (Nrf2) and nuclear factor-κB (NF-κB). In this regard, quantitative profiles revealed different amounts of polyphenols, in particular quercetin levels were higher in plants under mineral fertilised treatment. Those extract showed an enhanced anti-inflammatory and antioxidant activity. CONCLUSION Our data showed the anti-inflammatory and antioxidant potential of Maravilla de Verano polyphenolic extracts. The effect of farming methods on polyphenolic levels was highlighted. The higher reduction of inflammatory mediators release in extracts from plants cultivated under mineral fertilisation treatment was correlated to the higher amount of quercetin. These results can be useful for both nutraceutical or agronomic purposes. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Simona Adesso
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Salerno, Italy
| | - Giacomo Pepe
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Salerno, Italy
- Department of Agriculture, University of Reggio Calabria, Via Melissari 1, I-89122, Feo di Vito, Reggio Calabria, Italy
| | - Eduardo Sommella
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Salerno, Italy
- Department of Agriculture, University of Reggio Calabria, Via Melissari 1, I-89122, Feo di Vito, Reggio Calabria, Italy
| | - Michele Manfra
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano 10, I-85100, Potenza, Italy
| | - Antonio Scopa
- School of Agricultural, Forestry and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, I-85100, Potenza, Italy
| | - Adriano Sofo
- School of Agricultural, Forestry and Environmental Sciences, University of Basilicata, Viale dell'Ateneo Lucano 10, I-85100, Potenza, Italy
| | - Gian Carlo Tenore
- Department of Pharmaceutical and Toxicology Chemistry, University of Napoli Federico II, Via D. Montesano 49, I-80131, Napoli, Italy
| | - Mariateresa Russo
- Department of Agriculture, University of Reggio Calabria, Via Melissari 1, I-89122, Feo di Vito, Reggio Calabria, Italy
| | - Francesca Di Gaudio
- Department DiBiMeF, University of Palermo, Via del Vespro 129, I-90127, Palermo, Italy
| | - Giuseppina Autore
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Salerno, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Salerno, Italy
| | - Stefania Marzocco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano, Salerno, Italy
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Jeong YH, Oh YC, Cho WK, Shin H, Lee KY, Ma JY. Anti-inflammatory effects of Viola yedoensis and the application of cell extraction methods for investigating bioactive constituents in macrophages. Altern Ther Health Med 2016; 16:180. [PMID: 27301877 PMCID: PMC4908784 DOI: 10.1186/s12906-016-1142-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 05/25/2016] [Indexed: 01/25/2023]
Abstract
BACKGROUND Viola yedoensis (VY, Violaceae) is a popular medicinal herb used in traditional eastern medicine for treating lots of diseases, including inflammation and its related symptoms. However, the anti-inflammatory properties of VY have not been demonstrated. In the present study, we investigated the anti-inflammatory effects of VY ethanol extract (VYE) on macrophages and attempted to identify the bioactive components of VYE. METHODS We assessed the effects of VYE on secretion of nitric oxide (NO) and inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β. In addition, we explored the expression of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, and changes in heme oxygenase (HO)-1, nuclear factor (NF)-kB, and mitogen-activated protein kinase (MAPK) signaling pathways in RAW 264.7 macrophages stimulated by lipopolysaccharide (LPS). In addition, a rapid and useful approach to identify potential bioactive components in VYE with anti-inflammatory effects was developed using murine macrophage cell extraction coupled with high-performance liquid chromatography tandem mass spectrometry (LC-MS). RESULTS We found that VYE exerted anti-inflammatory activity by inhibiting the production of key inflammation mediators and related products, as well as suppression of HO-1, NF-kB, and MAPK signaling pathway activation in RAW 264.7 cells. In addition, we identified two compounds in VYE via the cell extraction method. CONCLUSIONS Our results revealed that VYE exerts anti-inflammatory activities and its detailed inhibitory mechanism in macrophages. Furthermore, we identified bioactive components of VYE.
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Seo YJ, Jeong M, Lee KT, Jang DS, Choi JH. Isocyperol, isolated from the rhizomes of Cyperus rotundus, inhibits LPS-induced inflammatory responses via suppression of the NF-κB and STAT3 pathways and ROS stress in LPS-stimulated RAW 264.7 cells. Int Immunopharmacol 2016; 38:61-9. [PMID: 27240136 DOI: 10.1016/j.intimp.2016.05.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 05/18/2016] [Accepted: 05/19/2016] [Indexed: 01/05/2023]
Abstract
The rhizomes of Cyperus rotundus (cyperaceae) have been used in Korean traditional medicines for treating diverse inflammatory diseases. However, little is known about the biological activities of isocyperol, a sesquiterpene isolated from C. rotundus, and their associated molecular mechanisms. In this study, we found that isocyperol significantly inhibited lipopolysaccharide (LPS)-induced production of nitrite oxide (NO) and prostaglandin E2 (PGE2) and suppressed LPS-induced expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) at the mRNA and protein levels in RAW 264.7 macrophages. In addition, isocyperol downregulated the LPS-induced expression of several proinflammatory cytokines, such as interleukin-1beta (IL-1β), IL-6, and monocyte chemotactic protein-1 (MCP-1). Isocyperol treatment suppressed the LPS-induced nuclear translocation and transcriptional activation of nuclear factor-kappaB (NF-κB) in macrophages. Moreover, the activation of STAT3, another proinflammatory signal, was suppressed by isocyperol in LPS-stimulated RAW 264.7 cells. Isocyperol pretreatment also induced heme oxygenase-1 (HO-1) expression and reduced LPS-stimulated reactive oxygen species (ROS) accumulation in macrophages. Furthermore, isocyperol significantly increased the survival rate and attenuated serum levels of NO, PGE2, and IL-6 in LPS-induced septic shock mouse model. Taken together, these data indicate that isocyperol suppress septic shock through negative regulation of pro-inflammatory factors through inhibition of the NF-κB and STAT3 pathways and ROS. To our knowledge, this is the first report on the biological activity of isocyperol and its molecular mechanism of action.
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Affiliation(s)
- Yun-Ji Seo
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea; Division of Molecular Biology, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea
| | - Miran Jeong
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea; Division of Molecular Biology, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea
| | - Kyung-Tae Lee
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea
| | - Dae Sik Jang
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea
| | - Jung-Hye Choi
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea; Division of Molecular Biology, College of Pharmacy, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul 02447, South Korea.
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34
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Lee DS, Yoon CS, Jung YT, Yoon JH, Kim YC, Oh H. Marine-Derived Secondary Metabolite, Griseusrazin A, Suppresses Inflammation through Heme Oxygenase-1 Induction in Activated RAW264.7 Macrophages. JOURNAL OF NATURAL PRODUCTS 2016; 79:1105-1111. [PMID: 27019105 DOI: 10.1021/acs.jnatprod.6b00009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new secondary metabolite, named griseusrazin A (1), was isolated from the marine-derived bacterium Streptomyces griseus subsp. griseus. The structure of the compound was determined by analysis of spectroscopic data including MS, COSY, HSQC, HMBC, and (15)N-HMBC data. Griseusrazin A (1) inhibited the production of inflammatory mediators, such as prostaglandin E2 and nitric oxide, which was mediated through the suppression of the expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. The production of pro-inflammatory cytokines, such as interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α, in the LPS-stimulated cells was also effectively blocked by griseusrazin A (1). Furthermore, this anti-inflammatory activity of 1 was linked to its inhibitory effects against the nuclear translocation of NF-κB p50 and p65, as wells as NF-κB binding activity. In the further study to elucidate the anti-inflammatory mechanism, 1 was shown to induce heme oxygenase-1 (HO-1) expression through the enhancement of nuclear translocation of nuclear factor E2-related factor 2. Furthermore, the anti-inflammatory activity of 1 in the LPS-stimulated cells was partially reversed by an HO inhibitor, tin protoporphyrin. These results indicate that the anti-inflammatory effect of 1 is associated with Nrf2-mediated HO-1 expression.
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Affiliation(s)
- Dong-Sung Lee
- College of Pharmacy, Wonkwang University , Iksan, 54538, Republic of Korea
- Department of Biomedical Chemistry, College of Health and Biomedical Science, Konkuk University , Chung-Ju 27478, Republic of Korea
| | - Chi-Su Yoon
- College of Pharmacy, Wonkwang University , Iksan, 54538, Republic of Korea
| | - Yong-Taek Jung
- Department of Food Science and Biotechnology, Sungkyunkwan University , Jangan-gu, Suwon 16419, Republic of Korea
| | - Jung-Hoon Yoon
- Department of Food Science and Biotechnology, Sungkyunkwan University , Jangan-gu, Suwon 16419, 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
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35
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Shin JS, Ryu S, Jang DS, Cho YW, Chung EK, Lee KT. Amomum tsao-ko fruit extract suppresses lipopolysaccharide-induced inducible nitric oxide synthase by inducing heme oxygenase-1 in macrophages and in septic mice. Int J Exp Pathol 2016; 96:395-405. [PMID: 26852687 DOI: 10.1111/iep.12159] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 10/23/2015] [Indexed: 12/22/2022] Open
Abstract
Amomum tsao-ko Crevost et Lemarié (Zingiberaceae) has traditionally been used to treat inflammatory and infectious diseases, such as throat infections, malaria, abdominal pain and diarrhoea. This study was designed to assess the anti-inflammatory effects and the molecular mechanisms of the methanol extract of A. tsao-ko (AOM) in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages and in a murine model of sepsis. In LPS-induced RAW 264.7 macrophages, AOM reduced the production of nitric oxide (NO) by inhibiting inducible nitric oxide synthase (iNOS) expression, and increased heme oxygenase-1 (HO-1) expression at the protein and mRNA levels. Pretreatment with SnPP (a selective inhibitor of HO-1) and silencing HO-1 using siRNA prevented the AOM-mediated inhibition of NO production and iNOS expression. Furthermore, AOM increased the expression and nuclear accumulation of NF-E2-related factor 2 (Nrf2), which enhanced Nrf2 binding to antioxidant response element (ARE). In addition, AOM induced the phosphorylation of extracellular regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) and generated reactive oxygen species (ROS). Furthermore, pretreatment with N-acetyl-l-cysteine (NAC; a ROS scavenger) diminished the AOM-induced phosphorylation of ERK and JNK and AOM-induced HO-1 expression, suggesting that ERK and JNK are downstream mediators of ROS during the AOM-induced signalling of HO-1 expression. In LPS-induced endotoxaemic mice, pretreatment with AOM reduced NO serum levels and liver iNOS expression and increased HO-1 expression and survival rates. These results indicate that AOM strongly inhibits LPS-induced NO production by activating the ROS/MAPKs/Nrf2-mediated HO-1 signalling pathway, and supports its pharmacological effects on inflammatory diseases.
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Affiliation(s)
- Ji-Sun Shin
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Korea.,Reactive Oxygen Species Medical Research Center, School of Medicine, Kyung Hee University, Seoul, Korea.,Department of Physiology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Suran Ryu
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Korea.,Department of Biomedical Science, College of Medical Science, Kyung Hee University, Hoegi-Dong, Seoul, Korea
| | - Dae Sik Jang
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Young-Wuk Cho
- Reactive Oxygen Species Medical Research Center, School of Medicine, Kyung Hee University, Seoul, Korea.,Department of Physiology, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Eun Kyung Chung
- Department of Pharmacy, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, Kyung Hee University, Seoul, Korea.,Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Korea
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36
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Wu X, Song M, Rakariyatham K, Zheng J, Wang M, Xu F, Gao Z, Xiao H. Inhibitory Effects of 4'-Demethylnobiletin, a Metabolite of Nobiletin, on 12-O-Tetradecanoylphorbol-13-acetate (TPA)-Induced Inflammation in Mouse Ears. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10921-10927. [PMID: 26651527 DOI: 10.1021/acs.jafc.5b05156] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Nobiletin (NOB) is major citrus flavonoid with many health-promoting benefits. We reported previously that 4'-demethylnobiletin (4DN), a major metabolite of NOB, significantly inhibited lipopolysaccharide (LPS)-stimulated inflammation in RAW 264.7 macrophages. In this study, we further studied the anti-inflammatory effects of 4DN in TPA-induced skin inflammation in mice. We demonstrated that topical application of 4DN decreased TPA-induced ear edema by >88 ± 4.77% in mice. This inhibitory effect was associated with inhibition on TPA-induced up-regulation of pro-inflammatory cytokines IL-1β, IL-6, and TNF-α. Immunoblotting results showed that 4DN resulted in profound effects on multiple proteins related with inflammation and carcinogenesis. 4DN significantly decreased the expression levels of iNOS, COX-2, and MMP-9, suppressed phosphorylation of PI3K/Akt and ERK, and increased the levels of HO-1 and NQO1 in TPA-treated mice. Overall, the results demonstrated that 4DN had strong anti-inflammatory effects in vivo, which provided a scientific basis for using NOB to inhibit inflammation-driven diseases.
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Affiliation(s)
- Xian Wu
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
| | - Mingyue Song
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
| | - Kanyasiri Rakariyatham
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
| | - Jinkai Zheng
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
- Institute of Agro-Products Processing Science and Technology, Chinese Academy of Agricultural Sciences , Beijing, People's Republic of China
| | - Minqi Wang
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
| | - Fei Xu
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
| | - Zili Gao
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
| | - Hang Xiao
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts, United States
- College of Bioscience and Biotechnology, Hunan Agricultural University , Changsha, Hunan, People's Republic of China
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37
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LEE DONGSUNG, KIM KYOUNGSU, KO WONMIN, BAE GISANG, PARK SUNGJOO, JANG JUNHYEOG, OH HYUNCHEOL, KIM YOUNCHUL. A fraction from Dojuksan 30% ethanol extract exerts its anti-inflammatory effects through Nrf2-dependent heme oxygenase-1 expression. Int J Mol Med 2015; 37:475-84. [DOI: 10.3892/ijmm.2015.2424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 11/24/2015] [Indexed: 11/06/2022] Open
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38
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Wu X, Song M, Rakariyatham K, Zheng J, Guo S, Tang Z, Zhou S, Xiao H. Anti-inflammatory effects of 4'-demethylnobiletin, a major metabolite of nobiletin. J Funct Foods 2015; 19:278-287. [PMID: 26770275 DOI: 10.1016/j.jff.2015.09.035] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Nobiletin, a citrus flavonoid has been associated with various beneficial biological activities. 4'-Demethylnobiletin (4DN) is a major metabolite of nobiletin and its tissue level was found to be much higher than that of nobiletin after oral administration of nobiletin in mice. Anti-inflammatory effects of 4DN were studied in lipopolysaccharide (LPS)-treated RAW 264.7 macrophages. The results showed 4DN not only dose-dependently inhibited LPS-induced nitric oxide production, but also significantly reduced expression of pro-inflammatory mediators, namely PGE2, IL-1β and IL-6. 4DN potently suppressed the expression of iNOS and COX-2 at both protein and mRNA levels. 4DN also inhibited nuclear translocation of NF-κB and AP-1. Furthermore, we demonstrated that 4DN activated transcription factor Nrf2 and its dependent genes including HO-1 and NQO1 whose expression may contribute to anti-inflammatory effects. The results demonstrated anti-inflammatory effects of 4DN and provided a scientific basis for using nobiletin as a nutraceutical to inhibit inflammation-driven diseases.
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Affiliation(s)
- Xian Wu
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Mingyue Song
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | | | - Jinkai Zheng
- Department of Food Science, University of Massachusetts, Amherst, MA, USA.,Institute of Agro-Products Processing Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Shanshan Guo
- Department of Food Science, University of Massachusetts, Amherst, MA, USA.,Department of Food Science and Nutrition, University of Jinan, Jinan, Shandong, P. R. China
| | - Zhonghai Tang
- College of Bioscience and Biotechnology, Human Agricultural University, Changsha, Hunan, P. R. China
| | - Shuangde Zhou
- College of Bioscience and Biotechnology, Human Agricultural University, Changsha, Hunan, P. R. China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, USA.,College of Bioscience and Biotechnology, Human Agricultural University, Changsha, Hunan, P. R. China
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39
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Seo YJ, Lee KT, Rho JR, Choi JH. Phorbaketal A, Isolated from the Marine Sponge Phorbas sp., Exerts Its Anti-Inflammatory Effects via NF-κB Inhibition and Heme Oxygenase-1 Activation in Lipopolysaccharide-Stimulated Macrophages. Mar Drugs 2015; 13:7005-19. [PMID: 26610528 PMCID: PMC4663563 DOI: 10.3390/md13117005] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 11/13/2015] [Indexed: 12/19/2022] Open
Abstract
Marine sponges harbor a range of biologically active compounds. Phorbaketal A is a tricyclic sesterterpenoid isolated from the marine sponge Phorbas sp.; however, little is known about its biological activities and associated molecular mechanisms. In this study, we examined the anti-inflammatory effects and underlying molecular mechanism of phorbaketal A in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. We found that phorbaketal A significantly inhibited the LPS-induced production of nitric oxide (NO), but not prostaglandin E2, in RAW 264.7 cells. Further, phorbaketal A suppressed the expression of inducible NO synthase at both the mRNA and protein levels. In addition, phorbaketal A reduced the LPS-induced production of inflammatory cytokines such as tumor necrosis factor-alpha, interleukin (IL)-1beta, IL-6, and monocyte chemotactic protein-1. Treatment with phorbaketal A inhibited the transcriptional activity of nuclear factor-kappaB (NF-κB), a crucial signaling molecule in inflammation. Moreover, phorbaketal A up-regulated the expression of heme oxygenase-1 (HO-1) in LPS-stimulated RAW 264.7 cells. These data suggest that phorbaketal A, isolated from the marine sponge Phorbas sp., inhibits the production of inflammatory mediators via down-regulation of the NF-κB pathway and up-regulation of the HO-1 pathway.
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Affiliation(s)
- Yun-Ji Seo
- Department of Life & Nanopharmaceutical Sciences, Kyung Hee University, Seoul 130-701, Korea.
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea.
| | - Kyung-Tae Lee
- Department of Life & Nanopharmaceutical Sciences, Kyung Hee University, Seoul 130-701, Korea.
| | - Jung-Rae Rho
- Department of Marine Biotechnology, Kunsan National University, Jeonbuk 573-701, Korea.
| | - Jung-Hye Choi
- Department of Life & Nanopharmaceutical Sciences, Kyung Hee University, Seoul 130-701, Korea.
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea.
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40
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de Cássia Da Silveira e Sá R, Andrade LN, De Sousa DP. Sesquiterpenes from Essential Oils and Anti-Inflammatory Activity. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
This review is aimed at presenting relevant information on the therapeutic potential of essential oil sesquiterpenes with anti-inflammatory activity. The data reviewed provide a basis for seeking new anti-inflammatory drugs from natural products that do not exhibit the undesirable side effects often displayed by anti-inflammatory drugs. In this review the experimental models, possible mechanisms of action, and chemical structures of 12 sesquiterpenes are presented.
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Affiliation(s)
| | - Luciana Nalone Andrade
- Department of Pharmacy, Federal University of Sergipe, CEP 49100-000, Sao Cristovão, Sergipe, Brazil
| | - Damião Pergentino De Sousa
- Department of Pharmaceutical Sciences, Federal University of Paraiba, CEP 58051-970, João Pessoa, Paraiba, Brazil
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41
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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: 3.7] [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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42
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Lee SJ, Kang HK, Song DK, Eum WS, Park J, Choi SY, Kwon HY. Transduction of PEP-1-heme oxygenase-1 into insulin-producing INS-1 cells protects them against cytokine-induced cell death. Biochem Biophys Res Commun 2015; 461:549-54. [DOI: 10.1016/j.bbrc.2015.04.076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 04/07/2015] [Indexed: 11/27/2022]
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43
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Pepe G, Sommella E, Manfra M, De Nisco M, Tenore GC, Scopa A, Sofo A, Marzocco S, Adesso S, Novellino T, Campiglia P. Evaluation of anti-inflammatory activity and fast UHPLC-DAD-IT-TOF profiling of polyphenolic compounds extracted from green lettuce (Lactuca sativa L.; var. Maravilla de Verano). Food Chem 2015; 167:153-61. [PMID: 25148972 DOI: 10.1016/j.foodchem.2014.06.105] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 06/24/2014] [Accepted: 06/26/2014] [Indexed: 01/10/2023]
Abstract
Fresh cut vegetables represent a widely consumed food worldwide. Among these, lettuce (Lactuca sativa L.) is one of the most popular on the market. The growing interest for this "healthy" food is related to the content of bioactive compounds, especially polyphenols, that show many beneficial effects. In this study, we report the anti-inflammatory and antioxidant potential of polyphenols extracted from lettuce (var. Maravilla de Verano), in J774A.1 macrophages stimulated with Escherichia coli lipopolysaccharide (LPS). Lettuce extract significantly decreased reactive oxygen species, nitric oxide release, inducible nitric oxide synthase and cycloxygenase-2 expression. A detailed quali/quantitative profiling of the polyphenolic content was carried out, obtaining fast separation (10 min), good retention time and peak area repeatability, (RSD% 0.80 and 8.68, respectively) as well as linearity (R(2)⩾ 0.999) and mass accuracy (⩽ 5 ppm). Our results show the importance in the diet of this cheap and popular food for his healthy properties.
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Affiliation(s)
- Giacomo Pepe
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Eduardo Sommella
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy
| | - Michele Manfra
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano 10, I-85100 Potenza, Italy
| | - Mauro De Nisco
- Pharmaco-Chemical Department, Faculty of Pharmacy, University of Messina, Viale Annunziata, I-98168 Messina, Italy
| | - Gian Carlo Tenore
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, I-80131 Napoli, Italy
| | - Antonio Scopa
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell'Ateneo Lucano 10, I-85100 Potenza, Italy
| | - Adriano Sofo
- School of Agricultural, Forestry, Food and Environmental Sciences, University of Basilicata, Via dell'Ateneo Lucano 10, I-85100 Potenza, Italy
| | - 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
| | - Tiziana Novellino
- Department of Clinical Medicine and Surgery, University of Napoli Federico II, Via S. Pansini, 5, 80131 Napoli, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, Salerno, Italy.
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44
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Choo YY, Lee S, Nguyen PH, Lee W, Woo MH, Min BS, Lee JH. Caffeoylglycolic acid methyl ester, a major constituent of sorghum, exhibits anti-inflammatory activity via the Nrf2/heme oxygenase-1 pathway. RSC Adv 2015. [DOI: 10.1039/c4ra13847c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Caffeoylglycolic acid methyl ester, a major constituent of sorghum, exhibits anti-inflammatory activityviaactivating the Nrf2/HO-1 pathway.
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Affiliation(s)
- Young-Yeon Choo
- Department of Biochemistry
- College of Natural Sciences
- Kangwon National University
- Chuncheon
- Republic of Korea
| | - Suhyun Lee
- Department of Biochemistry
- College of Natural Sciences
- Kangwon National University
- Chuncheon
- Republic of Korea
| | - Phi-Hung Nguyen
- College of Pharmacy
- Catholic University of Daegu
- Hayang
- Republic of Korea
| | - Wanju Lee
- Department of Biochemistry
- College of Natural Sciences
- Kangwon National University
- Chuncheon
- Republic of Korea
| | - Mi-Hee Woo
- College of Pharmacy
- Catholic University of Daegu
- Hayang
- Republic of Korea
| | - Byung-Sun Min
- College of Pharmacy
- Catholic University of Daegu
- Hayang
- Republic of Korea
| | - Jeong-Hyung Lee
- Department of Biochemistry
- College of Natural Sciences
- Kangwon National University
- Chuncheon
- Republic of Korea
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45
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Choi S, Nguyen VT, Tae N, Lee S, Ryoo S, Min BS, Lee JH. Anti-inflammatory and heme oxygenase-1 inducing activities of lanostane triterpenes isolated from mushroom Ganoderma lucidum in RAW264.7 cells. Toxicol Appl Pharmacol 2014; 280:434-42. [DOI: 10.1016/j.taap.2014.09.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 09/03/2014] [Accepted: 09/06/2014] [Indexed: 12/30/2022]
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46
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Li B, Choi HJ, Lee DS, Oh H, Kim YC, Moon JY, Park WH, Park SD, Kim JE. Amomum tsao-ko suppresses lipopolysaccharide-induced inflammatory responses in RAW264.7 macrophages via Nrf2-dependent heme oxygenase-1 expression. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2014; 42:1229-44. [PMID: 25178279 DOI: 10.1142/s0192415x14500773] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Amomum tsao-ko Crevost et Lemaire, used as a spice in Asia, is an important source of Chinese cuisine and traditional Chinese medicines. A. tsao-ko is reported to exert a variety of biological and pharmacological activities, including anti-proliferative, anti-oxidative and neuroprotective effects. In this study, NNMBS227, consisting of the ethanol extract of A. tsao-ko, exhibited potent anti-inflammatory activities in RAW264.7 macrophages. We investigated the effect of NNMBS227 in the suppression of pro-inflammatory mediators, including pro-inflammatory enzymes (inducible nitric oxide synthase and cyclooxygenase-2) and cytokines (tumor necrosis factor-α and interleukin-1β) in LPS stimulated macrophages. NNMBS227 also inhibited the phosphorylation and degradation of IκB-α, as well as the nuclear translocation of nuclear factor kappa B (NF-κB) p65 caused by stimulation with LPS. In addition, NNMBS227 induced heme oxygenase (HO)-1 expression through the nuclear translocation of nuclear factor E2-related factor 2 (Nrf2) in macrophages. Using tin protoporphyrin (SnPP), an HO activity inhibitor, we confirmed an association between the anti-inflammatory effects of NNMBS227 and the up-regulation of HO-1. These findings suggest that Nrf2-dependent increases in the expression of HO-1 induced by NNMBS227 conferred anti-inflammatory activities in LPS stimulated RAW264.7 macrophages.
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Affiliation(s)
- Bin Li
- Department of Pharmacy, Qingdao University of Science & Technology, Qingdao 266042, P. R. China
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Kim JH, Choo YY, Tae N, Min BS, Lee JH. The anti-inflammatory effect of 3-deoxysappanchalcone is mediated by inducing heme oxygenase-1 via activating the AKT/mTOR pathway in murine macrophages. Int Immunopharmacol 2014; 22:420-6. [PMID: 25091623 DOI: 10.1016/j.intimp.2014.07.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 06/09/2014] [Accepted: 07/22/2014] [Indexed: 11/24/2022]
Abstract
3-Deoxysappanchalcone (3-DSC), isolated from Caesalpinia sappan (Leguminosae), is a chalcone that exerts a variety of pharmacological activities. In the present study, we demonstrated that 3-DSC exerts anti-inflammatory activity in murine macrophages by inducing heme oxygenase-1 (HO-1) expression at the translational level. Treatment of RAW264.7 cells with 3-DSC induced HO-1 protein expression in a dose- and time-dependent manner without affecting HO-1 mRNA expression. Mitogen-activated protein kinase inhibitors or actinomycin D, a transcriptional inhibitor, did not block 3-DSC-mediated HO-1 induction. However, 3-DSC-mediated HO-1 induction was completely blocked by treatment with cycloheximide, a translational inhibitor, or rapamycin, an inhibitor of the mammalian target of rapamycin (mTOR). Strikingly, 3-DSC increased the phosphorylation level of mTOR downstream target molecules such as eukaryotic translation initiation factor 4E-binding protein 1 (4E-BP1) and S6 kinase 1 (S6K1), as well as AKT in a dose- and time-dependent manner, suggesting that the 3-DSC induces HO-1 expression by activating the AKT/mTOR pathway. Consistent with the notion that HO-1 has anti-inflammatory properties, 3-DSC inhibited the production of nitric oxide (NO) and interleukin (IL)-6 in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. Inhibition of HO-1 activity by treatment with tin protoporphyrin IX, a specific HO-1 inhibitor, abrogated the inhibitory effects of 3-DSC on the production of NO and IL-6 in LPS-stimulated RAW264.7 cells. Taken together, 3-DSC may be an effective HO-1 inducer at the translational level that has anti-inflammatory effects, and a valuable compound for modulating inflammatory conditions.
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Affiliation(s)
- Jun-Hyeong Kim
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do 200-701, Republic of Korea
| | - Young-Yeon Choo
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do 200-701, Republic of Korea
| | - Nara Tae
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do 200-701, Republic of Korea
| | - Byung-Sun Min
- College of Pharmacy, Catholic University of Daegu, Gyeongsan 712-702, Republic of Korea
| | - 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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Wu Q, Yu L, Qiu J, Shen B, Wang D, Soromou LW, Feng H. Linalool attenuates lung inflammation induced by Pasteurella multocida via activating Nrf-2 signaling pathway. Int Immunopharmacol 2014; 21:456-63. [DOI: 10.1016/j.intimp.2014.05.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 05/26/2014] [Accepted: 05/28/2014] [Indexed: 11/26/2022]
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Crocin suppresses LPS-stimulated expression of inducible nitric oxide synthase by upregulation of heme oxygenase-1 via calcium/calmodulin-dependent protein kinase 4. Mediators Inflamm 2014; 2014:728709. [PMID: 24839356 PMCID: PMC4009253 DOI: 10.1155/2014/728709] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 02/11/2014] [Indexed: 12/01/2022] Open
Abstract
Crocin is a water-soluble carotenoid pigment that is primarily used in various cuisines as a seasoning and coloring agent, as well as in traditional medicines for the treatment of edema, fever, and hepatic disorder. In this study, we demonstrated that crocin markedly induces the expression of heme oxygenase-1 (HO-1) which leads to an anti-inflammatory response. Crocin inhibited inducible nitric oxide synthase (iNOS) expression and nitric oxide production via downregulation of nuclear factor kappa B activity in lipopolysaccharide- (LPS-) stimulated RAW 264.7 macrophages. These effects were abrogated by blocking of HO-1 expression or activity. Crocin also induced Ca2+ mobilization from intracellular pools and phosphorylation of Ca2+/calmodulin-dependent protein kinase 4 (CAMK4). CAMK4 knockdown and kinase-dead mutant inhibited crocin-mediated HO-1 expression, Nrf2 activation, and phosphorylation of Akt, indicating that HO-1 expression is mediated by CAMK4 and that Akt is a downstream mediator of CAMK4 in crocin signaling. Moreover, crocin-mediated suppression of iNOS expression was blocked by CAMK4 inhibition. Overall, these results suggest that crocin suppresses LPS-stimulated expression of iNOS by inducing HO-1 expression via Ca2+/calmodulin-CAMK4-PI3K/Akt-Nrf2 signaling cascades. Our findings provide a novel molecular mechanism for the inhibitory effects of crocin against endotoxin-mediated inflammation.
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Kozakowska M, Szade K, Dulak J, Jozkowicz A. Role of heme oxygenase-1 in postnatal differentiation of stem cells: a possible cross-talk with microRNAs. Antioxid Redox Signal 2014; 20:1827-50. [PMID: 24053682 PMCID: PMC3961774 DOI: 10.1089/ars.2013.5341] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Heme oxygenase-1 (HO-1) converts heme to biliverdin, carbon monoxide, and ferrous ions, but its cellular functions are far beyond heme metabolism. HO-1 via heme removal and degradation products acts as a cytoprotective, anti-inflammatory, immunomodulatory, and proangiogenic protein, regulating also a cell cycle. Additionally, HO-1 can translocate to nucleus and regulate transcription factors, so it can also act independently of enzymatic function. RECENT ADVANCES Recently, a body of evidence has emerged indicating a role for HO-1 in postnatal differentiation of stem and progenitor cells. Maturation of satellite cells, skeletal myoblasts, adipocytes, and osteoclasts is inhibited by HO-1, whereas neurogenic differentiation and formation of cardiomyocytes perhaps can be enhanced. Moreover, HO-1 influences a lineage commitment in pluripotent stem cells and maturation of hematopoietic cells. It may play a role in development of osteoblasts, but descriptions of its exact effects are inconsistent. CRITICAL ISSUES In this review we discuss a role of HO-1 in cell differentiation, and possible HO-1-dependent signal transduction pathways. Among the potential mediators, we focused on microRNA (miRNA). These small, noncoding RNAs are critical for cell differentiation. Recently we have found that HO-1 not only influences expression of specific miRNAs but also regulates miRNA processing enzymes. FUTURE DIRECTIONS It seems that interplay between HO-1 and miRNAs may be important in regulating fates of stem and progenitor cells and needs further intensive studies.
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Affiliation(s)
- Magdalena Kozakowska
- 1 Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University , Krakow, Poland
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