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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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Chen J, Zhang X, Zhang Y, Zhang H, Zhang Q. The primary neurotoxic factor, Lansamide I, from Clausena lansium fruits and metabolic dysfunction invoked. Food Chem Toxicol 2023; 181:114087. [PMID: 37804914 DOI: 10.1016/j.fct.2023.114087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/12/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
Wampee (Clausena lansium) is a common fruit in South Asia. The pulp is a tasty food, and the seed is a typical traditional herb in China. However, we identified a primary toxic compound, Lansamide I, by NMR and X-ray diffraction of single-crystal. The compound occurred at 4.17 ± 0.16 mg/kg of dried seed and 0.08 ± 0.01 g/kg of fresh fruit. In our phenotype-based toxicity investigation, the compound caused decreased hatchability of zebrafish eggs, increased malformations such as enlarged yolk sacs and pericardial edema, and delayed body length development. Moreover, the compound also caused nerve cell damage and decreased locomotor activity. The compound caused an increase in peroxidation levels in vivo, with increases in both malondialdehyde and superoxide dismutase levels, but did not interfere with acetylcholinesterase levels. Metabolomic studies found that the compound caused significant up-regulation of 16 metabolites, mainly amino acids and peptides, which were involved in the nucleotide metabolism pathway and the betaine biosynthesis module. The qRT-PCR revealed that the substance interfered with the mRNA expression of tat and dctpp. These discoveries offer fresh perspectives on the toxicity mechanisms and metabolic response to the primary harmful molecules in wampee, which could inform the rational usage of wampee resources.
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Affiliation(s)
- Juan Chen
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, 710003, Shaanxi, China
| | - Xiaoyue Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shanxi, China
| | - Yuru Zhang
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, 710003, Shaanxi, China
| | - Hong Zhang
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, 710003, Shaanxi, China
| | - Qiang Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, Shanxi, China.
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Zhang S, Wang J, Ahn J. Advances in the Discovery of Efflux Pump Inhibitors as Novel Potentiators to Control Antimicrobial-Resistant Pathogens. Antibiotics (Basel) 2023; 12:1417. [PMID: 37760714 PMCID: PMC10525980 DOI: 10.3390/antibiotics12091417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
The excessive use of antibiotics has led to the emergence of multidrug-resistant (MDR) pathogens in clinical settings and food-producing animals, posing significant challenges to clinical management and food control. Over the past few decades, the discovery of antimicrobials has slowed down, leading to a lack of treatment options for clinical infectious diseases and foodborne illnesses. Given the increasing prevalence of antibiotic resistance and the limited availability of effective antibiotics, the discovery of novel antibiotic potentiators may prove useful for the treatment of bacterial infections. The application of antibiotics combined with antibiotic potentiators has demonstrated successful outcomes in bench-scale experiments and clinical settings. For instance, the use of efflux pump inhibitors (EPIs) in combination with antibiotics showed effective inhibition of MDR pathogens. Thus, this review aims to enable the possibility of using novel EPIs as potential adjuvants to effectively control MDR pathogens. Specifically, it provides a comprehensive summary of the advances in novel EPI discovery and the underlying mechanisms that restore antimicrobial activity. In addition, we also characterize plant-derived EPIs as novel potentiators. This review provides insights into current challenges and potential strategies for future advancements in fighting antibiotic resistance.
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Affiliation(s)
- Song Zhang
- Department of Biomedical Science, Kangwon National University, Chuncheon 24341, Republic of Korea;
| | - Jun Wang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China
| | - Juhee Ahn
- Department of Biomedical Science, Kangwon National University, Chuncheon 24341, Republic of Korea;
- Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341, Republic of Korea
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