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Yang Y, Wang C, Wang J, Yang L, Lv Z, An Q, Wang Y, Shao X, Wang F, Huo T, Liu J, Luo H, Quan Q. Rhizoma Paridis saponins attenuate Gram-negative bacteria-induced inflammatory acne by binding to KEAP1 and modulating Nrf2 and MAPK pathways. J Cell Mol Med 2024; 28:e18146. [PMID: 38426932 PMCID: PMC10906378 DOI: 10.1111/jcmm.18146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/30/2023] [Accepted: 01/16/2024] [Indexed: 03/02/2024] Open
Abstract
Acne vulgaris represents a chronic inflammatory condition, the pathogenesis of which is closely associated with the altered skin microbiome. Recent studies have implicated a profound role of Gram-negative bacteria in acne development, but there is a lack of antiacne agents targeting these bacteria. Polyphyllins are major components of Rhizoma Paridis with great anti-inflammatory potential. In this study, we aimed to evaluate the antiacne effects and the underlying mechanisms of PPH and a PPH-enriched Rhizoma Paridis extract (RPE) in treating the Gram-negative bacteria-induced acne. PPH and RPE treatments significantly suppressed the mRNA and protein expressions of interleukin (IL)-1β and IL-6 in lipopolysaccharide (LPS)-induced RAW 264.7 and HaCaT cells, along with the intracellular reactive oxygen species (ROS) generation. Furthermore, PPH and RPE inhibited the nuclear translocation of nuclear factor kappa-B (NF-κB) P65 in LPS-induced RAW 264.7 cells. Based on molecular docking, PPH could bind to kelch-like ECH-associated protein 1 (KEAP1) protein. PPH and RPE treatments could activate nuclear factor erythroid 2-related factor 2 (NRF2) and upregulate haem oxygenase-1 (HO-1). Moreover, RPE suppressed the mitogen-activated protein kinase (MAPK) pathway. Therefore, PPH-enriched RPE showed anti-inflammatory and antioxidative effects in vitro, which is promising for alternative antiacne therapeutic.
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Affiliation(s)
- Yang Yang
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
| | - Chaofan Wang
- State Key Laboratory of Animal Biotech Breeding, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Juan Wang
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- Key Laboratory for Space Bioscience and Biotechnology, School of Life SciencesNorthwestern Polytechnical UniversityXi'anShaanxiChina
| | - Lingli Yang
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
| | - Zheng Lv
- State Key Laboratory of Animal Biotech Breeding, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Quan An
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
| | - Yiming Wang
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
| | - Xue Shao
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
| | - Fei Wang
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
| | - Tong Huo
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
| | - Jiali Liu
- State Key Laboratory of Animal Biotech Breeding, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Haoshu Luo
- State Key Laboratory of Animal Biotech Breeding, College of Biological SciencesChina Agricultural UniversityBeijingChina
| | - Qianghua Quan
- R&D DepartmentYunnan Baiyao Group Health Products Co., LtdKunmingYunnanChina
- R&D DepartmentEast Asia Skin Health Research CenterBeijingChina
- R&D DepartmentYunnan Baiyao Group Shanghai Science & Technology Co., LtdShanghaiChina
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Du J, Zhu M, Li H, Liang G, Li Y, Feng S. Metformin attenuates cardiac remodeling in mice through the Nrf2/Keap1 signaling pathway. Exp Ther Med 2020; 20:838-845. [PMID: 32742327 PMCID: PMC7388283 DOI: 10.3892/etm.2020.8764] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 02/20/2020] [Indexed: 12/12/2022] Open
Abstract
Obesity results in a variety of metabolic alterations that may contribute to abnormalities in cardiac structure and function. Although metformin (Met) has been previously reported to exhibit beneficial effects against cardiomyopathy associated obesity, the mechanism underlying this observation remains unclear. The aim of the present study was to investigate the status of the nuclear factor (erythroid-derived 2)-like 2 (Nrf2)/kelch-like ECH-associated protein 1 (Keap1) system underlying the protective effects of Met against cardiac remodeling. High-fat diet-induced obesity mouse models were first generated, which were subsequently treated with Met. Metabolic parameters, heart weight index and degree of cardiac fibrosis were examined. The expression levels of genes and proteins associated with the Nrf2/Keap1 signaling pathway were assessed using reverse transcription-quantitative PCR and western blotting. In obese mice, Met treatment significantly ameliorated the obesity phenotype, improved metabolic disorders, reduced the heart weight index and attenuated cardiac fibrosis. The cardioprotective effects of Met may be mediated through the promotion of Keap1 degradation whilst increasing the expression of Nrf2 and associated downstream antioxidant factors.
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Affiliation(s)
- Jingxia Du
- Pharmacy Department, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Mengxi Zhu
- Pharmacy Department, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Hongchao Li
- Pharmacy Department, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Gaofeng Liang
- Pharmacy Department, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China.,Medical Research Center, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Yan Li
- Pharmacy Department, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Shuying Feng
- Pharmacy Department, Medical College, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China.,Medical Research Center, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
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Yi X, Zhao Y, Xue L, Zhang J, Qiao Y, Jin Q, Li H. Expression of Keap1 and Nrf2 in diffuse large B-cell lymphoma and its clinical significance. Exp Ther Med 2018; 16:573-578. [PMID: 30112024 PMCID: PMC6090442 DOI: 10.3892/etm.2018.6208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 03/16/2018] [Indexed: 12/30/2022] Open
Abstract
The present study investigated the expression and clinical significance of kelch-like ECH-associated protein 1 (Keap1) and nuclear factor erythroid-2-related factor-2 (Nrf2) expression in diffuse large B-cell lymphoma (DLBCL). These proteins were detected by immunohistochemistry in 39 DLBCL cases and 17 cases of reactive lymph node hyperplasia, and their association with the clinicopathological features of DLBCL patients was analyzed. In DLBCL, the percentage of cells with positive staining for Keap1 and Nrf2 was 46.2 and 35.9%, respectively, which was significantly higher than that in reactive lymph node hyperplasia (17.7 and 5.9%, respectively). There was no correlation between Keap1 and Nrf2 expression according to a Spearman rank correlation analysis (r=0.272; P>0.05). Keap1 and Nrf2 expression was associated with the international prognostic index and Ann-Arbor clinical stage (P<0.05), and Keap1 and Nrf2 expression was higher in DLBCL patients with stage III–IV (68.4 and 52.6%, respectively) compared with in those with stage I–II (25.0 and 20.0%, respectively). The aberrant expression of Keap1 and Nrf2 in DLBCL suggests that these factors may have crucial roles in the development and progression of the disease, and may therefore be used as prognostic indicators.
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Affiliation(s)
- Xuemei Yi
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Yajun Zhao
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Li Xue
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Jing Zhang
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Yujie Qiao
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Qianqian Jin
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Hongling Li
- Department of Oncology, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
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Weerachayaphorn J, Luo Y, Mennone A, Soroka CJ, Harry K, Boyer JL. Deleterious effect of oltipraz on extrahepatic cholestasis in bile duct-ligated mice. J Hepatol 2014; 60:160-6. [PMID: 23978715 PMCID: PMC4054607 DOI: 10.1016/j.jhep.2013.08.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/18/2013] [Accepted: 08/08/2013] [Indexed: 12/30/2022]
Abstract
BACKGROUND & AIMS Oltipraz (4-methyl-5(pyrazinyl-2)-1-2-dithiole-3-thione), a promising cancer preventive agent, has an antioxidative activity and ability to enhance glutathione biosynthesis, phase II detoxification enzymes and multidrug resistance-associated protein-mediated efflux transporters. Oltipraz can protect against hepatotoxicity caused by carbon tetrachloride, acetaminophen and alpha-naphthylisothiocyanate. Whether oltipraz has hepato-protective effects on obstructive cholestasis is unknown. METHODS We administered oltipraz to mice for 5 days prior to bile duct ligation (BDL) for 3 days. Liver histology, liver function markers, bile flow rates and hepatic expression of profibrogenic genes were evaluated. RESULTS Mice pretreated with oltipraz prior to BDL demonstrated higher levels of serum aminotransferases and more severe liver damage than in control mice. Higher bile flow and glutathione secretion rates were observed in unoperated mice treated with oltipraz than in control mice, suggesting that liver necrosis in oltipraz-treated BDL mice may be related partially to increased bile-acid independent flow and biliary pressure. Oltipraz treatment in BDL mice enhanced α-smooth muscle actin expression, consistent with activation of hepatic stellate cells and portal fibroblasts. Matrix metalloproteinases (Mmp) 9 and 13 and tissue inhibitors of metalloproteinases (Timp) 1 and 2 levels were increased in the oltipraz-treated BDL group, suggesting that the secondary phase of liver injury induced by oltipraz might be due to excessive Mmp and Timp secretions, which induce remodeling of the extracellular matrix. CONCLUSIONS Oltipraz treatment exacerbates the severity of liver injury following BDL and should be avoided as therapy for extrahepatic cholestatic disorders due to bile duct obstruction.
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Affiliation(s)
- Jittima Weerachayaphorn
- Department of Internal Medicine, School of Medicine, Yale University, New Haven, Connecticut, USA,Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Yuhuan Luo
- Department of Internal Medicine, School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Albert Mennone
- Department of Internal Medicine, School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Carol J. Soroka
- Department of Internal Medicine, School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Kathy Harry
- Department of Internal Medicine, School of Medicine, Yale University, New Haven, Connecticut, USA
| | - James L. Boyer
- Department of Internal Medicine, School of Medicine, Yale University, New Haven, Connecticut, USA,The corresponding author: James L. Boyer, M.D., Emeritus Director, Liver Center, Yale University School of Medicine, 333 Cedar Street, 1080 LMP, New Haven, CT 06520. Phone: (203) 785-5279; Fax: (203) 785-7273;
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Gao AM, Ke ZP, Shi F, Sun GC, Chen H. Chrysin enhances sensitivity of BEL-7402/ADM cells to doxorubicin by suppressing PI3K/Akt/Nrf2 and ERK/Nrf2 pathway. Chem Biol Interact 2013; 206:100-8. [PMID: 23994249 DOI: 10.1016/j.cbi.2013.08.008] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 08/03/2013] [Accepted: 08/16/2013] [Indexed: 10/26/2022]
Abstract
Nuclear factor-E2-related factor 2 (Nrf2) is an important cytoprotective transcription factor which plays a key role in antioxidant and detoxification processes. Recent studies have reported that development of chemoresistance is associated with the constitutive activation of the Nrf2-mediated signaling pathway in many types of cancer cells. Here, we investigated whether Nrf2 was associated with drug resistant in doxorubicin resistant BEL-7402 (BEL-7402/ADM) cells, and if chrysin could reverse drug resistance in BEL-7402/ADM cells. We found that remarkable higher level of Nrf2 and its target proteins in BEL-7402/ADM cells compared to BEL-7402 cells. Similarly, intracellular Nrf2 protein level was significantly decreased and ADM resistance was partially reversed by Nrf2 siRNA in BEL-7402/ADM cells. chrysin is a potent Nrf2 inhibitor which sensitizes BEL-7402/ADM cells to ADM and increases intracellular concentration of ADM. Mechanistically, chrysin significantly reduced Nrf2 expression at both the mRNA and protein levels through down-regulating PI3K-Akt and ERK pathway. Consequently, expression of Nrf2-downstream genes HO-1, AKR1B10, and MRP5 were reduced and the Nrf2-dependent chemoresistance was suppressed. In conclusion, these results clearly indicate that activation of Nrf2 is associated with drug resistance in BEL-7402/ADM cells and chrysin may be an effective adjuvant sensitizer to reduce anticancer drug resistance by down-regulating Nrf2 signaling pathway.
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Affiliation(s)
- Ai-Mei Gao
- Department of Pharmacy, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China; Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Yang JJ, Tao H, Huang C, Li J. Nuclear erythroid 2-related factor 2: a novel potential therapeutic target for liver fibrosis. Food Chem Toxicol 2013; 59:421-7. [PMID: 23793039 DOI: 10.1016/j.fct.2013.06.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 06/10/2013] [Accepted: 06/12/2013] [Indexed: 12/30/2022]
Abstract
Hepatic stellate cells (HSC) are the key fibrogenic cells of the liver. HSC activation is a process of cellular transdifferentiation that occurs upon liver injury, but the mechanisms underlying liver fibrosis are unknown. Nuclear erythroid 2-related factor 2 (Nrf2) is an oxidative stress-mediated transcription factor with a variety of downstream targets aimed at cytoprotection. However, Nrf2 has recently been implicated as a new therapeutic target for the treatment of liver fibrosis. This review focuses on the transcriptional repressors that either control liver injury or regulate specific fibrogenic functions of liver fibrosis. We also show that Nrf2 may reveal significant gene expression changes, suggesting that Nrf2 activation may ameliorate liver fibrosis.
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Affiliation(s)
- Jing-Jing Yang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
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Tsai CY, Wang CC, Lai TY, Tsu HN, Wang CH, Liang HY, Kuo WW. Antioxidant effects of diallyl trisulfide on high glucose-induced apoptosis are mediated by the PI3K/Akt-dependent activation of Nrf2 in cardiomyocytes. Int J Cardiol 2013; 168:1286-97. [PMID: 23453443 DOI: 10.1016/j.ijcard.2012.12.004] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 11/10/2012] [Accepted: 12/01/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Hyperglycemia-induced reactive oxygen species (ROS) generation contributes to development of diabetic cardiomyopathy. Nuclear factor E2-related factor 2 (Nrf2), a redox-sensing transcription factor, induces the antioxidant enzyme expressions. Diallyl trisulfide (DATS) is the most powerful antioxidant among the sulfur-containing compounds in garlic oil. We investigated whether DATS inhibits hyperglycemia-induced ROS production via Nrf2-mediated activation of antioxidant enzymes in cardiac cells exposed to high glucose (HG). METHODS AND RESULTS Treatment of H9c2 cells with HG resulted in an increase in intracellular ROS level and caspase-3 activity, which were markedly reduced by the administration of DATS (10 μM). DATS treatment significantly increased Nrf2 protein stability and nuclear translocation, upregulated downstream gene HO-1, and suppressed its repressor Keap1. However, apoptosis was not inhibited by DATS in cells transfected with Nrf2-specific siRNA. Inhibition of PI3K/Akt signaling by LY294002 (PI3K inhibitor) or PI3K-specific siRNA not only decreased the level of DATS-induced Nrf2-mediated HO-1 expression, but also diminished the protective effects of DATS. Similar results were also observed in high glucose-exposed neonatal primary cardiomyocytes and streptozotocin-treated diabetic rats fed DATS at a dose of 40 mg/kg BW. CONCLUSIONS Our findings indicate that DATS protects against hyperglycemia-induced ROS-mediated apoptosis by upregulating the PI3K/Akt/Nrf2 pathway, which further activates Nrf2-regulated antioxidant enzymes in cardiomyocytes exposed to HG.
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Affiliation(s)
- Cheng-Yen Tsai
- Department of Pediatrics, China Medical University Beigang Hospital, Yunlin, Taiwan, ROC; Department of Biological Science & Technology College of Life Sciences, China Medical University, Taichung, Taiwan, ROC
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Taddei ML, Giannoni E, Comito G, Chiarugi P. Microenvironment and tumor cell plasticity: an easy way out. Cancer Lett 2013; 341:80-96. [PMID: 23376253 DOI: 10.1016/j.canlet.2013.01.042] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 01/23/2013] [Accepted: 01/24/2013] [Indexed: 12/12/2022]
Abstract
Cancer cells undergo genetic changes allowing their adaptation to environmental changes, thereby obtaining an advantage during the long metastatic route, disseminated of several changes in the surrounding environment. In particular, plasticity in cell motility, mainly due to epigenetic regulation of cancer cells by environmental insults, engage adaptive strategies aimed essentially to survive in hostile milieu, thereby escaping adverse sites. This review is focused on tumor microenvironment as a collection of structural and cellular elements promoting plasticity and adaptive programs. We analyze the role of extracellular matrix stiffness, hypoxia, nutrient deprivation, acidity, as well as different cell populations of tumor microenvironment.
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Affiliation(s)
- Maria Letizia Taddei
- Department of Biochemical Sciences, University of Florence, Viale Morgagni 50, 50134 Firenze, Italy
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