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Jin Y, Zhou X, Chen L, Xu X, Yan W, Wang Q, Lin Y, Ding X. Framework Nucleic Acids Loaded with Quercetin: Protecting Retinal Neurovascular Unit via the Protein Kinase B/Heme Oxygenase-1 Pathway. ACS NANO 2024. [PMID: 39268926 DOI: 10.1021/acsnano.4c05845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2024]
Abstract
Retinal neovascular disease is a leading cause of vision loss and blindness globally. It occurs when abnormal new blood vessels form in the retina. In this study, we utilized tetrahedral framework nucleic acids (tFNAs) as vehicles to load quercetin (QUE), a small-molecule flavonoid, forming a deoxyribonucleic acid (DNA) nanocomplex, tFNAs-QUE. Our data show this nanocomplex inhibits pathological neovascularization, reduces the area of retinal nonperfusion area, protects retinal neurons, and preserves the visual function. Further, we discovered that tFNAs-QUE selectively upregulates the AKT/Nrf2/HO-1 signaling pathway, which can suppress pathological vascular growth and exert antioxidative effects. Therefore, this study presents a promising small-molecule-loading mechanism for the treatment of ischemic retinal diseases.
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Affiliation(s)
- Yili Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Xiaodi Zhou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Limei Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Xiaoxiao Xu
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Wenjia Yan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Qiong Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
- National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaoyan Ding
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China
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Hirata Y, Takemori H, Furuta K, Kamatari YO, Sawada M. Ferroptosis induces nucleolar stress as revealed by live-cell imaging using thioflavin T. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2024; 7:100196. [PMID: 39077682 PMCID: PMC11284673 DOI: 10.1016/j.crphar.2024.100196] [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: 04/21/2024] [Revised: 06/12/2024] [Accepted: 07/07/2024] [Indexed: 07/31/2024] Open
Abstract
Nucleolar stress induced by stressors like hypoxia, UV irradiation, and heat shock downregulates ribosomal RNA transcription, thereby impairing protein synthesis capacity and potentially contributing to cell senescence and various human diseases such as neurodegenerative disorders and cancer. Live-cell imaging of the nucleolus may be a feasible strategy for investigating nucleolar stress, but currently available nucleolar stains are limited for this application. In this study using mouse hippocampal HT22 cells, we demonstrate that thioflavin T (ThT), a benzothiazole dye that binds RNA with high affinity, is useful for nucleolar imaging in cells where RNAs predominate over protein aggregates. Nucleoli were stained with high intensity simply by adding ThT to the cell culture medium, making it suitable for use even in damaged cells. Further, ThT staining overlapped with specific nucleolar stains in both live and fixed cells, but did not overlap with markers for mitochondria, lysosomes, endoplasmic reticulum, and double-stranded DNA. Ferroptosis, an iron-dependent nonapoptotic cell death pathway characterized by lipid peroxide accumulation, reduced the number of ThT-positive puncta while endoplasmic reticulum stress did not. These findings suggest that ferroptosis is associated with oxidative damage to nucleolar RNA molecules and ensuing loss of nucleolar function.
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Affiliation(s)
- Yoko Hirata
- Life Science Research Center, Institute for Advanced Study, Gifu University, Gifu, 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Gifu, 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, 501-1193, Japan
| | | | - Yuji O. Kamatari
- Life Science Research Center, Institute for Advanced Study, Gifu University, Gifu, 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, 501-1193, Japan
- Institute for Glyco-core Research (iGCORE), Gifu University, Gifu, 501-1193, Japan
| | - Makoto Sawada
- Department of Brain Functions, Research Institute of Environmental Medicine, Nagoya University, Aichi, Japan
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Zhang L, Luo YL, Xiang Y, Bai XY, Qiang RR, Zhang X, Yang YL, Liu XL. Ferroptosis inhibitors: past, present and future. Front Pharmacol 2024; 15:1407335. [PMID: 38846099 PMCID: PMC11153831 DOI: 10.3389/fphar.2024.1407335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/06/2024] [Indexed: 06/09/2024] Open
Abstract
Ferroptosis is a non-apoptotic mode of programmed cell death characterized by iron dependence and lipid peroxidation. Since the ferroptosis was proposed, researchers have revealed the mechanisms of its formation and continue to explore effective inhibitors of ferroptosis in disease. Recent studies have shown a correlation between ferroptosis and the pathological mechanisms of neurodegenerative diseases, as well as diseases involving tissue or organ damage. Acting on ferroptosis-related targets may provide new strategies for the treatment of ferroptosis-mediated diseases. This article specifically describes the metabolic pathways of ferroptosis and summarizes the reported mechanisms of action of natural and synthetic small molecule inhibitors of ferroptosis and their efficacy in disease. The paper also describes ferroptosis treatments such as gene therapy, cell therapy, and nanotechnology, and summarises the challenges encountered in the clinical translation of ferroptosis inhibitors. Finally, the relationship between ferroptosis and other modes of cell death is discussed, hopefully paving the way for future drug design and discovery.
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Affiliation(s)
- Lei Zhang
- School of Medicine, Yan’an University, Yan’an, China
| | - Yi Lin Luo
- School of Medicine, Yan’an University, Yan’an, China
| | - Yang Xiang
- College of Physical Education, Yan’an University, Yan’an, China
| | - Xin Yue Bai
- School of Medicine, Yan’an University, Yan’an, China
| | | | - Xin Zhang
- School of Medicine, Yan’an University, Yan’an, China
| | - Yan Ling Yang
- School of Medicine, Yan’an University, Yan’an, China
| | - Xiao Long Liu
- School of Medicine, Yan’an University, Yan’an, China
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Cruz TM, Lima ADS, Silva AO, Mohammadi N, Zhang L, Azevedo L, Marques MB, Granato D. High-throughput synchronous erythrocyte cellular antioxidant activity and protection screening of phenolic-rich extracts: Protocol validation and applications. Food Chem 2024; 440:138281. [PMID: 38160597 DOI: 10.1016/j.foodchem.2023.138281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/13/2023] [Accepted: 12/24/2023] [Indexed: 01/03/2024]
Abstract
Oxidative/nitrosative damage takes part in chronic disease development, which generates an urgent need for intervention and better therapies to manage them. The scientific community has demanded easy-to-run, cheap, and reliable methods for cellular antioxidant activity assays. This work standardised and validated an erythrocyte cellular antioxidant activity and membrane protection/injury (HERYCA-P) protocol to study food-derive extracts. The method measures intracellular reactive oxygen species (ROS) generation, lipoperoxidation, and haemolysis induced by 2,2'-azobis(2-amidinopropane) dihydrochloride. Quercetin decreased ROS generation by 50.4% and haemolysis by 2.2%, while ascorbic acid inhibited lipid peroxidation by 40.1%. Total phenolic contents of teas were correlated with decreased ROS generation (r = -0.924), lipoperoxidation (r = -0.951), and haemolysis (r = -0.869). The erythrocyte ROS generation and lipoperoxidation were also associated with CUPRAC (r = -0.925; r = -0.951) and hydroxyl radical scavenging activity (r = -0.936; r = -0.949). The precision rates of antioxidant standards and tea samples were below 15%. HERYCA-P is feasible as a complementary antioxidant assay for food matrices.
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Affiliation(s)
- Thiago Mendanha Cruz
- University of Limerick, Faculty of Science and Engineering, Department of Biological Sciences, Bioactivity and Applications Lab, V94 T9PX Limerick, Ireland; State University of Ponta Grossa (UEPG), Department of Chemistry, Av. Carlos Cavalcanti, 4748, 84030-900 Ponta Grossa, Brazil
| | - Amanda Dos Santos Lima
- University of Limerick, Faculty of Science and Engineering, Department of Biological Sciences, Bioactivity and Applications Lab, V94 T9PX Limerick, Ireland; Federal University of Alfenas, Faculty of Nutrition, Rua Gabriel Monteiro da Silva, 714, 37130-000 Alfenas, Brazil
| | - Alessandra Oliveira Silva
- University of Limerick, Faculty of Science and Engineering, Department of Biological Sciences, Bioactivity and Applications Lab, V94 T9PX Limerick, Ireland; Federal University of Alfenas, Faculty of Pharmaceutical Sciences, Rua Gabriel Monteiro da Silva, 714, 37130-000 Alfenas, Brazil
| | - Nima Mohammadi
- University of Limerick, Faculty of Science and Engineering, Department of Biological Sciences, Bioactivity and Applications Lab, V94 T9PX Limerick, Ireland
| | - Liang Zhang
- Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Hefei 230036, China
| | - Luciana Azevedo
- University of Limerick, Faculty of Science and Engineering, Department of Biological Sciences, Bioactivity and Applications Lab, V94 T9PX Limerick, Ireland; Federal University of Alfenas, Faculty of Nutrition, Rua Gabriel Monteiro da Silva, 714, 37130-000 Alfenas, Brazil
| | - Mariza Boscacci Marques
- State University of Ponta Grossa (UEPG), Department of Chemistry, Av. Carlos Cavalcanti, 4748, 84030-900 Ponta Grossa, Brazil
| | - Daniel Granato
- University of Limerick, Faculty of Science and Engineering, Department of Biological Sciences, Bioactivity and Applications Lab, V94 T9PX Limerick, Ireland; Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland.
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5
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Pant T, Uche N, Juric M, Zielonka J, Bai X. Regulation of immunomodulatory networks by Nrf2-activation in immune cells: Redox control and therapeutic potential in inflammatory diseases. Redox Biol 2024; 70:103077. [PMID: 38359749 PMCID: PMC10877431 DOI: 10.1016/j.redox.2024.103077] [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: 12/30/2023] [Revised: 01/26/2024] [Accepted: 02/05/2024] [Indexed: 02/17/2024] Open
Abstract
Inflammatory diseases present a serious health challenge due to their widespread prevalence and the severe impact on patients' lives. In the quest to alleviate the burden of these diseases, nuclear factor erythroid 2-related factor 2 (Nrf2) has emerged as a pivotal player. As a transcription factor intimately involved in cellular defense against metabolic and oxidative stress, Nrf2's role in modulating the inflammatory responses of immune cells has garnered significant attention. Recent findings suggest that Nrf2's ability to alter the redox status of cells underlies its regulatory effects on immune responses. Our review delves into preclinical and clinical evidence that underscores the complex influence of Nrf2 activators on immune cell phenotypes, particularly in the inflammatory milieu. By offering a detailed analysis of Nrf2's role in different immune cell populations, we cast light on the potential of Nrf2 activators in shaping the immune response towards a more regulated state, mitigating the adverse effects of inflammation through modeling redox status of immune cells. Furthermore, we explore the innovative use of nanoencapsulation techniques that enhance the delivery and efficacy of Nrf2 activators, potentially advancing the treatment strategies for inflammatory ailments. We hope this review will stimulate the development and expansion of Nrf2-targeted treatments that could substantially improve outcomes for patients suffering from a broad range of inflammatory diseases.
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Affiliation(s)
- Tarun Pant
- Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA; Department of Pediatrics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
| | - Nnamdi Uche
- Department of Pharmacology and Center for Pharmacogenomics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Matea Juric
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Jacek Zielonka
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Xiaowen Bai
- Department of Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
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Cheng X, Huang J, Li H, Zhao D, Liu Z, Zhu L, Zhang Z, Peng W. Quercetin: A promising therapy for diabetic encephalopathy through inhibition of hippocampal ferroptosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 126:154887. [PMID: 38377720 DOI: 10.1016/j.phymed.2023.154887] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 04/28/2023] [Accepted: 05/16/2023] [Indexed: 02/22/2024]
Abstract
BACKGROUND The pathophysiology of diabetic encephalopathy (DE), a significant diabetes-related pathological complication of the central nervous system, is poorly understood. Ferroptosis is an iron-dependent regulated necrotic cell death process that mediates the development of neurodegenerative and diabetes-related lesions. Quercetin (QE) exerts anti-ferroptotic effects in various diseases. However, the roles of ferroptosis in DE and the potential anti-ferroptotic mechanisms of QE are unclear. PURPOSE This study aimed to investigate if quercetin can ameliorate DE by inhibiting ferroptosis and to elucidate the potential anti-ferroptotic mechanisms of QE, thus providing a new perspective on the pathogenesis and prevention of DE. METHODS The spontaneously type 2 diabetic Goto-Kakizak rats and high glucose (HG)-induced PC12 cells were used as animal and in vitro models, respectively. The Morris water maze test was performed to evaluate the cognition of rats. Pathological damage was examined using hematoxylin and eosin staining. Mitochondrial damage was assessed using transmission electron microscopy. Lipid peroxidation was evaluated by examining the levels of malondialdehyde, superoxide dismutase, and glutathione. Additionally, the contents of iron ions were quantified. Immunofluorescence and western blotting were carried out to poke the protein levels. Network pharmacology analysis was conducted to construct a protein-protein interaction network for the therapeutic targets of QE in DE. Additionally, molecular docking and cellular thermal shift assay was performed to examine the target of QE. RESULTS QE alleviated cognitive impairment, decreased lipid peroxidation and iron deposition in the hippocampus, and upregulated the Nrf2/HO-1 signaling pathway. HG-induced ferroptosis in PC12 cells resulted in decreased cell viability accompanied by lipid peroxidation and iron deposition. QE mitigated HG-induced ferroptosis by upregulating the Nrf2/HO-1 pathway, which was partially suppressed upon Nrf2 inhibition. Network pharmacology analysis further indicated that the Nrf2/HO-1 signaling pathway is a key target of QE. Molecular docking experiments revealed that QE binds to KEAP1 through four hydrogen bonds. Moreover, QE altered the thermostability of KEAP1. CONCLUSION These results indicated that QE inhibits ferroptosis in the hippocampal neurons by binding to KEAP1 and subsequently upregulating the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Xin Cheng
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; National Clinical Research Center for Mental Disorder, The Second Xiangya Hospital, Central South University, Changsha 410011, PR China
| | - Jianhua Huang
- Hunan Academy of Chinese Medicine, Changsha 410013, PR China
| | - Hongli Li
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; National Clinical Research Center for Mental Disorder, The Second Xiangya Hospital, Central South University, Changsha 410011, PR China
| | - Di Zhao
- Hunan Academy of Chinese Medicine, Changsha 410013, PR China
| | - Zhao Liu
- Hunan Academy of Chinese Medicine, Changsha 410013, PR China
| | - Lemei Zhu
- Academician Workstation, Changsha Medical University, Changsha 410219, PR China
| | - Zhen Zhang
- YangSheng College of Traditional Chinese Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, PR China
| | - Weijun Peng
- Department of Integrated Traditional Chinese & Western Medicine, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan 410011, PR China; National Clinical Research Center for Mental Disorder, The Second Xiangya Hospital, Central South University, Changsha 410011, PR China.
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7
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Huang Q, Ru Y, Luo Y, Luo X, Liu D, Ma Y, Zhou X, Linghu M, Xu W, Gao F, Huang Y. Identification of a targeted ACSL4 inhibitor to treat ferroptosis-related diseases. SCIENCE ADVANCES 2024; 10:eadk1200. [PMID: 38552012 PMCID: PMC10980261 DOI: 10.1126/sciadv.adk1200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 02/23/2024] [Indexed: 04/01/2024]
Abstract
Ferroptosis is a form of iron-dependent, lipid peroxidation-driven regulatory cell death that has been implicated in the pathogenesis of multiple diseases, including organ injury, ischemia/reperfusion, and neurodegenerative diseases. However, inhibitors that directly and specifically target ferroptosis are not yet available. Here, we identify the compound AS-252424 (AS) as a potent ferroptosis inhibitor through kinase inhibitor library screening. Our results show that AS effectively inhibits lipid peroxidation and ferroptosis in both human and mouse cells. Mechanistically, AS directly binds to the glutamine 464 of ACSL4 to inhibit its enzymatic activity, resulting in the suppression of lipid peroxidation and ferroptosis. By using nanoparticle-based delivery systems, treatment with AS-loaded nanoparticles effectively alleviate ferroptosis-mediated organ injury in mouse models, including kidney ischemia/reperfusion injury and acute liver injury (ALI). Thus, our results identify that AS is a specific and targeted inhibitor of ACSL4 with remarkable antiferroptosis function, providing a potential therapeutic for ferroptosis-related diseases.
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Affiliation(s)
- Qian Huang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Yi Ru
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Yingli Luo
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Xianyu Luo
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Didi Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Yinchu Ma
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Xinru Zhou
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Maoyuan Linghu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Wen Xu
- Neurology Department, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Fei Gao
- Department of Critical Care Medicine, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People’s Hospital, Wuxi Medical Center, Nanjing Medical University, Wuxi, China
| | - Yi Huang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
- Insitute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, 230601 China
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8
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Chen YL, Xiong LA, Ma LF, Fang L, Zhan ZJ. Natural product-derived ferroptosis mediators. PHYTOCHEMISTRY 2024; 219:114002. [PMID: 38286199 DOI: 10.1016/j.phytochem.2024.114002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/22/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024]
Abstract
It has been 11 years since ferroptosis, a new mode of programmed cell death, was first proposed. Natural products are an important source of drug discovery. In the past five years, natural product-derived ferroptosis regulators have been discovered in an endless stream. Herein, 178 natural products discovered so far to trigger or resist ferroptosis are classified into 6 structural classes based on skeleton type, and the mechanisms of action that have been reported are elaborated upon. If pharmacodynamic data are sufficient, the structure and bioactivity relationship is also presented. This review will provide medicinal chemists with some effective ferroptosis regulators, which will promote the research of natural product-based treatment of ferroptosis-related diseases in the future.
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Affiliation(s)
- Yi-Li Chen
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Lin-An Xiong
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Lie-Feng Ma
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China
| | - Luo Fang
- Department of Pharmacy, Zhejiang Cancer Hospital, PR China.
| | - Zha-Jun Zhan
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, PR China.
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9
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Calabrese EJ, Hayes AW, Pressman P, Dhawan G, Kapoor R, Agathokleous E, Calabrese V. Quercetin induces its chemoprotective effects via hormesis. Food Chem Toxicol 2024; 184:114419. [PMID: 38142767 DOI: 10.1016/j.fct.2023.114419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
Quercetin is a polyphenol present in numerous fruits and vegetables and therefore widely consumed by humans with average daily dietary intakes of 10-20 mg/day. It is also a popular dietary supplement of 250-1000 mg/day. However, despite the widespread consumer interest in quercetin, due to its possible chemopreventive properties, the extensively studied quercetin presents a highly diverse and complex array of biological effects. Consequently, the present paper provides the first assessment of quercetin-induced hormetic concentration/dose responses, their quantitative features and mechanistic foundations, and their biological, biomedical, clinical, and public health implications. The findings indicate that quercetin-induced hormetic dose responses are widespread, being independent of biological model, cell type, and endpoint. These findings have the potential to enlighten future experimental studies with quercetin especially with respect to study design parameters and may also affect the appraisal of possible public health benefits and risks associated with highly diverse consumer consumption practices.
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Affiliation(s)
- Edward J Calabrese
- School of Public Health and Health Sciences, Department of Environmental Health, Morrill I-N344, University of Massachusetts, Amherst, MA, 01003, USA.
| | - A Wallace Hayes
- Center for Environmental Occupational Risk Analysis and Management, College of Public Health, University of South Florida, Tampa, FL, USA.
| | - Peter Pressman
- University of Maine, 5728 Fernald Hall, Room 201, Orono, ME, 04469, USA.
| | - Gaurav Dhawan
- Sri Guru Ram Das (SGRD), University of Health Sciences, Amritsar, India.
| | - Rachna Kapoor
- Saint Francis Hospital and Medical Center, Hartford, CT, USA.
| | - Evgenios Agathokleous
- School of Ecology and Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Vittorio Calabrese
- Department of Biomedical and Biotechnological Sciences, School of Medicine University of Catania, Via Santa Sofia 97, Catania, 95123, Italy.
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Peng C, Ai Q, Zhao F, Li H, Sun Y, Tang K, Yang Y, Chen N, Liu F. Quercetin attenuates cerebral ischemic injury by inhibiting ferroptosis via Nrf2/HO-1 signaling pathway. Eur J Pharmacol 2024; 963:176264. [PMID: 38123006 DOI: 10.1016/j.ejphar.2023.176264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
AIMS Ischemic stroke is a severe cerebrovascular disease in which neuronal death continually occurs through multiple forms, including apoptosis, autophagy, pyroptosis and ferroptosis. Quercetin (QRC), as a natural flavonoid compound, has been reported to have pharmacological effects on ischemic injury accompanied by unclear anti-ferroptotic mechanisms. This study is designed to investigate the therapeutic effects of QRC against ferroptosis in ischemic stroke. MATERIALS AND METHODS In vivo, the model of MCAO rats were used to assess the protective effect of QRC on cerebral ischemic. Additionally, we constructed oxidative stressed and ferroptotic cell models to explore the effects and mechanisms of QRC on ferroptosis. The related proteins were analysed by western blotting, immunohistochemical and immunofluorescence techniques. RESULTS The experiments demonstrated that QRC improves neurological deficits, infarct volume, and pathological features in MCAO rats, also increased the viability of HT-22 cells exposed to H2O2 and erastin. These results, including MDA, SOD, GSH, ROS levels and iron accumulation, indicated that QRC suppresses the generation of lipid peroxides and may involve in the regulatory of ferroptosis. Both in vitro and in vivo, QRC was found to inhibit ferroptosis by up-regulating GPX4 and FTH1, as well as down-regulating ACSL4. Furthermore, we observed that QRC enhances the nuclear translocation of Nrf2 and activates the downstream antioxidative proteins. Importantly, the effect of QRC on ferroptosis can be reversed by the Nrf2 inhibitor ML385. CONCLUSIONS This study provides evidence that QRC has a neuroprotective effect by inhibiting ferroptosis, demonstrating the therapeutic potential for cerebral ischemic stroke.
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Affiliation(s)
- Caiwang Peng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Qidi Ai
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China
| | - Fengyan Zhao
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Hengli Li
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Yang Sun
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China
| | - Keyan Tang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Yantao Yang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China.
| | - Naihong Chen
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Fang Liu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China.
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11
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Zhang JB, Jia X, Cao Q, Chen YT, Tong J, Lu GD, Li DJ, Han T, Zhuang CL, Wang P. Ferroptosis-Regulated Cell Death as a Therapeutic Strategy for Neurodegenerative Diseases: Current Status and Future Prospects. ACS Chem Neurosci 2023; 14:2995-3012. [PMID: 37579022 DOI: 10.1021/acschemneuro.3c00406] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023] Open
Abstract
Ferroptosis is increasingly being recognized as a key element in the pathogenesis of diverse diseases. Recent studies have highlighted the intricate links between iron metabolism and neurodegenerative disorders. Emerging evidence suggests that iron homeostasis, oxidative stress, and neuroinflammation all contribute to the regulation of both ferroptosis and neuronal health. However, the precise molecular mechanisms underlying the involvement of ferroptosis in the pathological processes of neurodegeneration and its impact on neuronal dysfunction remain incompletely understood. In our Review, we provide a comprehensive analysis and summary of the potential molecular mechanisms underlying ferroptosis in neurodegenerative diseases, aiming to elucidate the disease progression of neurodegeneration. Additionally, we discuss potential therapeutic agents that modulate ferroptosis with the goal of identifying novel drug molecules for the treatment of neurodegenerative disorders.
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Affiliation(s)
- Jia-Bao Zhang
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
- National Experimental Teaching Demonstration Center of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
| | - Xiuqin Jia
- Department of Radiology, Beijing Chao Yang Hospital, Capital Medical University, Chaoyang District, Beijing 100020, China
| | - Qi Cao
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
- National Experimental Teaching Demonstration Center of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
| | - Yi-Ting Chen
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
| | - Jie Tong
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Guo-Dong Lu
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
| | - Dong-Jie Li
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Ting Han
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
| | - Chun-Lin Zhuang
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
| | - Pei Wang
- Department of Pharmacology, College of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
- National Experimental Teaching Demonstration Center of Pharmacy, Naval Medical University/Second Military Medical University, Shanghai 200433, China
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12
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Li Y, Huang Z, Pan S, Feng Y, He H, Cheng S, Wang L, Wang L, Pathak JL. Resveratrol Alleviates Diabetic Periodontitis-Induced Alveolar Osteocyte Ferroptosis Possibly via Regulation of SLC7A11/GPX4. Nutrients 2023; 15:2115. [PMID: 37432277 DOI: 10.3390/nu15092115] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 07/12/2023] Open
Abstract
The mode and mechanism of diabetic periodontitis-induced alveolar-osteocyte death are still unclear. This study aimed to investigate the occurrence of ferroptosis in alveolar osteocytes during diabetic periodontitis and the therapeutic potential of resveratrol to alleviate osteocyte ferroptosis. Diabetic periodontitis was induced in C57/BL6-male mice and treated with or without resveratrol. Periodontitis pathogenicity was analyzed by micro-CT and histology, and alveolar-osteocyte ferroptosis was analyzed by immunohistochemistry. MLOY4 osteocytes were treated with P. gingivalis-derived lipopolysaccharide (LPS)+advanced glycosylated end products (AGEs) mimicking diabetic periodontitis condition in vitro, with or without resveratrol or ferrostatin-1 (ferroptosis inhibitor). Osteocyte ferroptosis and expression of inflammatory mediators were analyzed. Diabetic periodontitis aggravated periodontitis pathogenicity and inhibited the expression of GPX4 and SLC7A11 in alveolar osteocytes and resveratrol alleviated these effects. LPS+AGEs triggered osteocyte ferroptosis in vitro as indicated by the downregulated GPX4 and SLC7A11, upregulated malondialdehyde, disrupted mitochondrial morphology, and overexpressed pro-inflammatory mediators IL-1β, TNF-α, SOST, RANKL, and IL-6, and ferrostatin-1 or resveratrol treatment reversed these effects. LPS+AGEs upregulated pIKBα and pNF-κB p65 expression in osteocytes, and resveratrol or ferrostatin-1 reversed this effect. In conclusion, diabetic periodontitis triggers alveolar osteocyte ferroptosis possibly via disruption of the SLC7A11/GPX4 axis, and resveratrol has therapeutic potential to correct this biological event.
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Affiliation(s)
- Yue Li
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Zhijun Huang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Shuaifei Pan
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Yuhui Feng
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Haokun He
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Shuguang Cheng
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Lijing Wang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Liping Wang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Janak Lal Pathak
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
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13
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Takahashi M, Hamamoto A, Oh-Hashi K, Takemori H, Furuta K, Hirata Y. Antiferroptotic Activities of Oxindole GIF-0726-r Derivatives: Involvement of Ferrous Iron Coordination and Free-Radical Scavenging Capacities. ACS Chem Neurosci 2023; 14:1826-1833. [PMID: 37104649 DOI: 10.1021/acschemneuro.3c00042] [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: 04/29/2023] Open
Abstract
Ferroptosis and oxytosis are iron- and oxidative stress-dependent cell death pathways strongly implicated in neurodegenerative diseases, cancers, and metabolic disorders. Therefore, specific inhibitors may have broad clinical applications. We previously reported that 3-[4-(dimethylamino)benzyl]-2-oxindole (GIF-0726-r) and derivatives protected the mouse hippocampal cell line HT22 against oxytosis/ferroptosis by suppressing reactive oxygen species (ROS) accumulation. In this study, we evaluated the biological activities of GIF-0726-r derivatives with modifications at the oxindole skeleton and other positions. The addition of a methyl, nitro, or bromo group to C-5 of the oxindole skeleton enhanced antiferroptotic efficacy on HT22 cells during membrane cystine-glutamate antiporter inhibition and ensued intracellular glutathione depletion. In contrast, the substitution of the dimethylamino group on the side chain phenyl ring with a methyl, nitro, or amine group dramatically suppressed antiferroptotic activity regardless of other modifications. Compounds with antiferroptotic activity also directly scavenged ROS and decreased free ferrous ions in both HT22 cells and cell-free reactions while those compounds without antiferroptotic activity had little effect on either ROS or ferrous-ion concentration. Unlike oxindole compounds, which we have previously reported, the antiferroptotic compounds had little effect on the nuclear factor erythroid-2-related factor 2-antioxidant response element pathway. Oxindole GIF-0726-r derivatives with a 4-(dimethylamino)benzyl moiety at C-3 and some types of bulky group at C-5 (whether electron-donating or electron-withdrawing) can suppress ferroptosis, warranting safety and efficacy evaluations in animal models of disease.
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Affiliation(s)
- Mayu Takahashi
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Akie Hamamoto
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
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14
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Lv C, Li Y, Liang R, Huang W, Xiao Y, Ma X, Wang Y, Zou H, Qin F, Sun C, Li T, Zhang J. Characterization of tangeretin as an activator of nuclear factor erythroid 2-related factor 2/antioxidant response element pathway in HEK293T cells. Curr Res Food Sci 2023; 6:100459. [PMID: 36846469 PMCID: PMC9945746 DOI: 10.1016/j.crfs.2023.100459] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 01/13/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Numerous studies have reported that tangeretin is a polymethoxylated flavone with a variety of biological activates, but little research has been done on the antioxidant mechanism of tangeretin. Hence, we investigated the effect of tangeretin on the nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) pathway and its potential molecular mechanisms by in vitro and in silico research. The results of molecular docking suggested that tangeretin bound at the top of the central pore of Kelch-like ECH-associated protein 1 (Keap1) Kelch domain, and the hydrophobic and hydrogen bond interactions contributed to their stable binding. Herein, the regulation of Nrf2-ARE pathway by tangeretin was explored in the human embryonic kidney cell line HEK293T, which is relatively easy to be transfected. Upon binding to tangeretin, Nrf2 translocated to the nucleus of HEK293T cells, which in turn activated the Nrf2-ARE pathway. Luciferase reporter gene analysis showed that tangeretin significantly induced ARE-mediated transcriptional activation. Real-time PCR and Western blot assays showed that tangeretin induced the gene and protein expressions of Nrf2-mediated targets, including heme oxygenase 1 (HO-1), nicotinamide adenine dinucleotide phosphate (NADPH) quinone dehydrogenase 1 (NQO1), and glutamate-cysteine ligase (GCLM). In addition, tangeretin could effectively scavenge 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radicals. In summary, tangeretin may be a potential antioxidant via activating the Nrf2-ARE pathway.
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Affiliation(s)
- Chengyu Lv
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China,Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Yuqiu Li
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Rong Liang
- Agricultural Science and Engineering School, Liaocheng University, Liaocheng, 252059, China
| | - Wei Huang
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Yechen Xiao
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Xinqi Ma
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Yongjun Wang
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Haoyang Zou
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China
| | - Fen Qin
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Chang Sun
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China
| | - Tiezhu Li
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun, 130033, China,Corresponding author.
| | - Jie Zhang
- College of Food Science and Engineering, Jilin University, Changchun, 130062, China,Corresponding author.
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15
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Zhao J, Sun Y, Yuan C, Li T, Liang Y, Zou H, Zhang J, Ren L. Quercetin ameliorates hepatic fat accumulation in high-fat diet-induced obese mice via PPARs. Food Funct 2023; 14:1674-1684. [PMID: 36691903 DOI: 10.1039/d2fo03013f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
As a natural pigment in food, quercetin possesses multiple biological activities and plays a crucial role in regulating metabolic syndrome. Herein, we aim to explore the potential mechanism of quercetin to ameliorate hepatic fat accumulation. In vivo experiments showed that quercetin significantly relieved inflammation response by decreasing the serum TNF-α and IL-6 levels and also improved high-fat diet-induced hepatic steatosis without other organ injuries. Quercetin can effectively reduce lipid aggregation and down-regulate the protein expression of PCK1 in HepG2 cells induced by oleic acid and palmitic acid, indicating that inhibiting gluconeogenesis leads to hepatic fat accumulation reduction. Furthermore, molecular docking results suggested that quercetin can bind to both PPARα and PPARγ, with an even more potent binding affinity than indeglitazar, a pan-agonist of PPARs. In conclusion, quercetin may regulate gluconeogenesis to ameliorate hepatic fat accumulation via targeting PPARα/γ.
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Affiliation(s)
- Jingqi Zhao
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Yantong Sun
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Cuiping Yuan
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Tiezhu Li
- Institute of Agro-food Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Yuan Liang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Haoyang Zou
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Jie Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Li Ren
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
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