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Kong DW, Du LD, Liu RZ, Yuan TY, Wang SB, Wang YH, Lu Y, Fang LH, Du GH. Baicalein attenuates rotenone-induced SH-SY5Y cell apoptosis through binding to SUR1 and activating ATP-sensitive potassium channels. Acta Pharmacol Sin 2024; 45:480-489. [PMID: 37993535 PMCID: PMC10834402 DOI: 10.1038/s41401-023-01187-3] [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: 05/04/2023] [Accepted: 10/23/2023] [Indexed: 11/24/2023] Open
Abstract
Dopaminergic neurons in the substantia nigra (SN) expressing SUR1/Kir6.2 type ATP-sensitive potassium channels (K-ATP) are more vulnerable to rotenone or metabolic stress, which may be an important reason for the selective degeneration of neurons in Parkinson's disease (PD). Baicalein has shown neuroprotective effects in PD animal models. In this study, we investigated the effect of baicalein on K-ATP channels and the underlying mechanisms in rotenone-induced apoptosis of SH-SY5Y cells. K-ATP currents were recorded from SH-SY5Y cells using whole-cell voltage-clamp recording. Drugs dissolved in the external solution at the final concentration were directly pipetted onto the cells. We showed that rotenone and baicalein opened K-ATP channels and increased the current amplitudes with EC50 values of 0.438 μM and 6.159 μM, respectively. K-ATP channel blockers glibenclamide (50 μM) or 5-hydroxydecanoate (5-HD, 250 μM) attenuated the protective effects of baicalein in reducing reactive oxygen species (ROS) content and increasing mitochondrial membrane potential and ATP levels in rotenone-injured SH-SY5Y cells, suggesting that baicalein protected against the apoptosis of SH-SY5Y cells by regulating the effect of rotenone on opening K-ATP channels. Administration of baicalein (150, 300 mg·kg-1·d-1, i.g.) significantly inhibited rotenone-induced overexpression of SUR1 in SN and striatum of rats. We conducted surface plasmon resonance assay and molecular docking, and found that baicalein had a higher affinity with SUR1 protein (KD = 10.39 μM) than glibenclamide (KD = 24.32 μM), thus reducing the sensitivity of K-ATP channels to rotenone. Knockdown of SUR1 subunit reduced rotenone-induced apoptosis and damage of SH-SY5Y cells, confirming that SUR1 was an important target for slowing dopaminergic neuronal degeneration in PD. Taken together, we demonstrate for the first time that baicalein attenuates rotenone-induced SH-SY5Y cell apoptosis through binding to SUR1 and activating K-ATP channels.
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Affiliation(s)
- De-Wen Kong
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Li-da Du
- Shandong Soteria Pharmaceutical Co Ltd., Jinan, 250022, China
| | - Run-Zhe Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Tian-Yi Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Shou-Bao Wang
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Yue-Hua Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Yang Lu
- Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Lian-Hua Fang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Guan-Hua Du
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
- Beijing Key Laboratory of Drug Targets Identification and Drug Screening, National Center for Pharmaceutical Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Zhang X, Zhao Y, Liang X, Zhang L, Li K, Sun Z, Zhao YF. α-Lipoic acid upregulates gene expression but reduces protein levels of fibroblast growth factor 21 in HepG2 Cells. Basic Clin Pharmacol Toxicol 2022; 131:270-281. [PMID: 35838000 DOI: 10.1111/bcpt.13775] [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: 04/26/2022] [Revised: 06/17/2022] [Accepted: 07/12/2022] [Indexed: 11/27/2022]
Abstract
Fibroblast growth factor 21 (FGF21) is a metabolism-regulating hepatokine, and its expression is finely controlled by the nutrients and cellular stressors. α-Lipoic acid (ALA) regulates fuel metabolism as a nutrient, but it also arouses mitochondrial and endoplasmic reticulum (ER) stress as well as oxidative stress in hepatocytes. However, the role of cellular stress in ALA-regulated FGF21 expression has not been demonstrated as yet. The present study found that ALA upregulated FGF21 gene expression while it reduced FGF21 protein levels in HepG2 cells, which was accompanied by mitochondrial damage that was shown by ATP reduction and ROS elevation. ALA led to mitochondrial stress and ER stress as shown by the increased expression of HSP60, ATF6 and ATF4. Inhibition of ER stress by 4-PBA significantly attenuated ALA-stimulated FGF21 gene expression while it did not influence the reduction of FGF21 protein levels. H2 O2 -induced oxidative stress reduced FGF21 protein levels in HepG2 cells, and anti-oxidation by Tempol blocked ALA-induced reduction of FGF21 proteins. In conclusion, ALA upregulates FGF21 gene expression through the stimulation of mitochondrial and ER stress while it reduces FGF21 protein levels through the induction of oxidative stress in HepG2 cells. Further studies are needed to demonstrate the in vivo effect of ALA on hepatic FGF21 expression.
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Affiliation(s)
- Xiaochun Zhang
- Institute of Basic Medical Sciences, Xi'an Medical University, Xi'an, China
| | - Yanyan Zhao
- Institute of Basic Medical Sciences, Xi'an Medical University, Xi'an, China
| | - Xiangyan Liang
- Institute of Basic Medical Sciences, Xi'an Medical University, Xi'an, China
| | - Lijun Zhang
- Institute of Basic Medical Sciences, Xi'an Medical University, Xi'an, China
| | - Ke Li
- Shaanxi Key Laboratory of Brain Disorders, Shaanxi Key Laboratory of Ischemic Cardiovascular Disease, Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
| | - Zhuo Sun
- Institute of Basic Medical Sciences, Xi'an Medical University, Xi'an, China
| | - Yu-Feng Zhao
- Institute of Basic Medical Sciences, Xi'an Medical University, Xi'an, China
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Enhancement of Biocontrol Efficacy of Pichia kudriavzevii Induced by Ca Ascorbate against Botrytis cinerea in Cherry Tomato Fruit and the Possible Mechanisms of Action. Microbiol Spectr 2021; 9:e0150721. [PMID: 34937188 PMCID: PMC8694134 DOI: 10.1128/spectrum.01507-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This study investigated the effect of Ca ascorbate on the biocontrol efficacy of Pichia kudriavzevii and the possible mechanisms. The results indicated that the biocontrol activity of P. kudriavzevii was significantly enhanced by 0.15 g L−1 of Ca ascorbate, with higher growth rates of yeast cells in vitro and in vivo. The antioxidant enzyme activity in P. kudriavzevii, including catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD), were improved by Ca ascorbate and reached the maximum at 96 h, 96 h, and 72 h, respectively. The expression of the antioxidant enzyme-related genes CAT1 (8.55-fold) and SOD2 (7.26-fold) peaked at 96 h, while PRXIID (2.8-fold) peaked at 48 h, which were similar to the trends of enzyme activities. Compared with the control, 0.15 g L−1 of Ca ascorbate and CaCl2 increased the activity of succinate dehydrogenase in P. kudriavzevii, thereby enhancing the utilization of nutrients by yeast cells, and calcium ascorbate had the strongest effect. The expressions of HXT5, ADH6, PET100p, and Pga62 were significantly higher in the Ca ascorbate treatment than the other groups, and the CaCl2 treatment was also significantly higher than the control. These results indicated that Ca ascorbate can effectively improve the energy metabolism and cell wall synthesis and slow down the senescence of yeast cells. In general, Ca ascorbate can improve the environmental adaptability of P. kudriavzevii and thus improve the biocontrol effect, which is associated with inducing antioxidant enzymes in yeast cells and enhancing energy metabolism and nutrient utilization efficiency to increase nutrient competition with pathogens. IMPORTANCE Antagonistic yeast is a promising way to control postharvest fruit decay because of its safety and broad-spectrum resistance. However, the biocontrol efficacy of yeast is limited by environmental stress, such as oxidative stress. Therefore, the improvement of antioxidant capacity has become a research hot spot in improving the biocontrol efficacy of yeast. The induction of Ca ascorbate on the antioxidant capacity and physiological activity of yeast was studied. The results showed better induction of antioxidant enzyme and physiological activity in yeast by Ca ascorbate for better antioxidant capacity, and Ca2+ also played a synergistic promotion effect, which improved the biocontrol efficacy. These results provide an approach for the research and application of improving the environmental adaptability and biocontrol effectiveness of yeast.
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Zhang Z, Sun X, Wang K, Yu Y, Zhang L, Zhang K, Gu J, Yuan X, Song G. Hydrogen-saturated saline mediated neuroprotection through autophagy via PI3K/AKT/mTOR pathway in early and medium stages of rotenone-induced Parkinson's disease rats. Brain Res Bull 2021; 172:1-13. [PMID: 33838212 DOI: 10.1016/j.brainresbull.2021.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/20/2021] [Accepted: 04/02/2021] [Indexed: 02/07/2023]
Abstract
Some cardiovascular symptoms in the early stage of Parkinson's disease (PD) were related to degeneration of the rostral ventrolateral medulla (RVLM) catecholaminergic neurons. To date, little is known about the effects of hydrogen water on early stage of PD. Here, protective actions of hydrogen-saturated saline (HS) on rotenone-induced PD rats, as well as its underlying mechanisms were investigated. HS was used to treat PD rats at three general stages; early, medium and late, which were represented by rotenone induced rats for 0, 7 and 14 days. HS treatment significantly alleviated the cardiovascular and motor symptoms in rotenone-induced PD rats, improved the survival number of RVLM catecholaminergic neurons and nigral dopamine neurons only in early and medium stages of PD rats. Decreased levels of reactive oxygen species (ROS) and alpha-synuclein (α-Syn), transformation of microtubule associated protein 1 light chain 3 (LC3)-I/II and degradation of sequestosome 1 (p62) were detected, as well as increased expression level of autophagy related protein 5 (ATG5) and B-cell lymphoma-2 interacting protein 1 (Beclin-1) in the RVLM and substantia nigra (SN) after HS treatment in early and medium stages of PD rats. In addition, phosphorylation levels of phosphatidylinositol-3-kinase (PI3K), protein kinase B (Akt) and mammalian rapamycin target protein (mTOR) decreased after HS treatment in early and medium stages of PD rats. The results suggested that HS treatment exerted beneficial effects in early and medium stages before motor impairments emerged but not in the late stage of rotenone-induced PD rats. It exerted neuroprotection with RVLM catecholaminergic neurons and nigral dopamine neurons, mediated in part by decreasing levels of ROS and α-Syn through increasing autophagy machinery which were partly via inhibiting PI3K-Akt-mTOR pathway.
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Affiliation(s)
- Zhaoqiang Zhang
- Department of Physiology, Basic Medical College of Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Xiao Sun
- Department of Nephrology, Taian City Central Hospital, Taian, 271000, China
| | - Kun Wang
- Postdoctoral Workstation, Taian City Central Hospital, Taian, 271000, China
| | - Yang Yu
- Life Science Research Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Li Zhang
- Department of Electrocardiogram, Taian Traditional Chinese Medicine Hospital, Taian, 271000, China
| | - Keping Zhang
- Department of Physiology, Basic Medical College of Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Jinglongfei Gu
- Department of Physiology, Basic Medical College of Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Xiaofan Yuan
- Department of Physiology, Basic Medical College of Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China
| | - Guohua Song
- Life Science Research Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, 271000, China.
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Liu C, Liu Z, Zhang Z, Li Y, Fang R, Li F, Zhang J. A Scientometric Analysis and Visualization of Research on Parkinson's Disease Associated With Pesticide Exposure. Front Public Health 2020; 8:91. [PMID: 32318533 PMCID: PMC7154051 DOI: 10.3389/fpubh.2020.00091] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 03/05/2020] [Indexed: 12/21/2022] Open
Abstract
The etiology and pathogenesis of Parkinson's disease (PD) have not yet been clearly described. Both genetic and environmental factors contribute to the onset and progression of PD. Some pesticides have been demonstrated to be associated with PD by many previous studies and experiments, and an increasing number of researchers have paid attention to this area in recent years. This paper aims to explore the knowledge structure, analyze the current research hot spots, and discuss the research trend through screening and summarizing the present literature. Based on 1767 articles from the Web of Science Core Collection and PubMed database, this study carried out the analysis from the keywords, cited references, countries, authors, and some other aspects by using Citespace. The hot topics, valuable articles, and productive authors in this research field could be found after that. To the best of our knowledge, this is the first study to specifically visualize the relationship between pesticide exposure and PD, and forecast research tendency in the future.
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Affiliation(s)
- Chaoyang Liu
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan, China.,Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.,School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, China
| | - Zehua Liu
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan, China.,School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, China
| | - Zhentao Zhang
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yanan Li
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan, China.,School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, China
| | - Ruying Fang
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan, China.,School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, China
| | - Fei Li
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan, China.,School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, China
| | - Jingdong Zhang
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan, China.,School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan, China
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Mu F, Jiao Q, Du X, Jiang H. Association of orthostatic hypotension with Parkinson’s disease: a meta-analysis. Neurol Sci 2020; 41:1419-1426. [DOI: 10.1007/s10072-020-04277-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 02/02/2020] [Indexed: 12/21/2022]
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