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Zeng Q, Luo Y, Sang X, Liao M, Wen B, Hu Z, Sun M, Luo Z, Huang X, Liu W, Tang S. Senegenin Attenuates Pulmonary Fibrosis by Inhibiting Oxidative-Stress-Induced Epithelial Cell Senescence through Activation of the Sirt1/Pgc-1α Signaling Pathway. Antioxidants (Basel) 2024; 13:675. [PMID: 38929114 PMCID: PMC11200506 DOI: 10.3390/antiox13060675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Idiopathic pulmonary fibrosis is a fatal interstitial lung disease for which effective drug therapies are lacking. Senegenin, an effective active compound from the traditional Chinese herb Polygala tenuifolia Willd, has been shown to have a wide range of pharmacological effects. In this study, we investigated the therapeutic effects of senegenin on pulmonary fibrosis and their associated mechanisms of action. We found that senegenin inhibited the senescence of epithelial cells and thus exerted anti-pulmonary-fibrosis effects by inhibiting oxidative stress. In addition, we found that senegenin promoted the expression of Sirt1 and Pgc-1α and that the antioxidative and antisenescent effects of senegenin were suppressed by specific silencing of the Sirt1 and Pgc-1α genes, respectively. Moreover, the senegenin-induced effects of antioxidation, antisenescence of epithelial cells, and antifibrosis were inhibited by treatment with Sirt1 inhibitors in vivo. Thus, the Sirt1/Pgc-1α pathway exerts its antifibrotic effect on lung fibrosis by mediating the antioxidative and antisenescent effects of senegenin.
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Affiliation(s)
- Qian Zeng
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Yuyang Luo
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Xiaoxue Sang
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Minlin Liao
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Binbin Wen
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Zhengang Hu
- Xiangya School of Medicine, Central South University, Changsha 410013, China; (Z.H.); (Z.L.)
| | - Mei Sun
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Ziqiang Luo
- Xiangya School of Medicine, Central South University, Changsha 410013, China; (Z.H.); (Z.L.)
| | - Xiaoting Huang
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Wei Liu
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
| | - Siyuan Tang
- Xiangya Nursing School, Central South University, Changsha 410013, China; (Q.Z.); (Y.L.); (X.S.); (M.L.); (B.W.); (M.S.); (X.H.)
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Wang M, Feng N, Qin J, Wang S, Chen J, Qian S, Liu Y, Luo F. Abdominal surgery under ketamine anesthesia during second trimester impairs hippocampal learning and memory of offspring by regulating dendrite spine remodeling in rats. Neurotoxicology 2024; 101:82-92. [PMID: 38346645 DOI: 10.1016/j.neuro.2024.02.003] [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: 12/01/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024]
Abstract
Recent evidence showed that general anesthesia produces long-term neurotoxicity and cognitive dysfunction. However, it remains unclear whether maternal non-obstetric surgery under ketamine anesthesia during second trimester causes cognitive impairment in offspring. The present study assigned pregnant rats into three groups: 1) normal control group receiving no anesthesia and no surgery, 2) ketamine group receiving ketamine anesthesia for 2 h on the 14th day of gestation but no surgery, and 3) surgery group receiving abdominal surgery under ketamine anesthesia on the 14th day of gestation. On postnatal day 1, the offspring rats in Ketamine group and surgery group were assigned to receive intra-peritoneal injection of Senegenin (15 mg/kg), once per day for consecutive 14 days. The offspring's spatial perception, anxiety-like behavior, and learning and memory were evaluated. Then the offspring's hippocampal tissues were collected. The offspring of the surgery group were impaired in the spatial perception in the cliff avoidance test and the spatial learning and memory in the Morris water maze test. Accordingly, the activity of histone deacetylases increased, the protein levels of NEDD9, BDNF, p-TrkB, Syn and PSD-95 decreased, and the density of dendritic spines reduced in the hippocampus of the offspring of the surgery group, and such effects were not seen in the offspring of the ketamine group, neither in the offspring of control group. Senegenin alleviated the learning and memory impairment, and increased the protein levels of NEDD9, BDNF, p-TrkB, Syn and PSD-95 and the density of dendritic spines in the offspring of the surgery group. ketamine anesthesia plus surgery during second trimester impairs hippocampus-dependent learning and memory, and the deficits could be rescued by treatment with Senegenin.
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Affiliation(s)
- Mengdie Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Namin Feng
- Department of Anesthesiology, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - Jia Qin
- Rehabilitation Medical Center and Department of Anesthesiology, Zhejiang Provincial People's Hospital and Hangzhou Medical College Affiliated People's Hospital, Hangzhou, Zhejiang 310000, China
| | - Shengqiang Wang
- Department of Anesthesiology, Yichun People's Hospital, Yichun 336000, China
| | - Jiabao Chen
- Rehabilitation Medical Center and Department of Anesthesiology, Zhejiang Provincial People's Hospital and Hangzhou Medical College Affiliated People's Hospital, Hangzhou, Zhejiang 310000, China
| | - Shaojie Qian
- Rehabilitation Medical Center and Department of Anesthesiology, Zhejiang Provincial People's Hospital and Hangzhou Medical College Affiliated People's Hospital, Hangzhou, Zhejiang 310000, China
| | - Yulin Liu
- Department of Immunology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
| | - Foquan Luo
- Rehabilitation Medical Center and Department of Anesthesiology, Zhejiang Provincial People's Hospital and Hangzhou Medical College Affiliated People's Hospital, Hangzhou, Zhejiang 310000, China.
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Yu L, Zhang C, Gu L, Chen H, Huo Y, Wang S, Tao J, Xu C, Zhang Q, Ma M, Zhang J. Hydroxysafflor Yellow A and Tenuigenin Exhibit Neuroprotection Effects Against Focal Cerebral Ischemia Via Differential Regulation of JAK2/STAT3 and SOCS3 Signaling Interaction. Mol Neurobiol 2024:10.1007/s12035-023-03896-6. [PMID: 38214838 DOI: 10.1007/s12035-023-03896-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Abstract
Numerous natural bioactive compounds extracted from Chinese medicines have been proved to be promising and potent agents in the treatment of ischemic stroke. Hydroxysafflor yellow A (HSYA), separated from Carthamus tinctorius, has increasingly attracted attention for its broad spectrum of pharmacological effects, especially of its neuroprotective action. Our previous studies revealed that HSYA plays significant beneficial roles in a dose-dependent manner in rats with focal cerebral ischemia. However, treatment with higher doses of HSYA appeared to bring about adverse reactions in the rats. In present study, we adopted tenuigenin (TEN), extracted from the Polygala tenuifolia root, in combination with HSYA to optimize the therapeutic strategy against ischemic stroke, and further explored the underlying mechanisms of action of the combination in vivo and in vitro. We firstly confirmed the pharmacological efficacies of co-treatment of HSYA and TEN in middle cerebral ischemia occlusion (MCAO) rats and observed the synergistic improvement of infarct volume, cerebral edema, and morphology of neuron cell body. Behavioral experiments indicated that combination of HSYA and TEN could synergistically improve motor and cognitive function in MCAO rats. We also observed increased viability and suppressed cell apoptosis after HSYA and TEN co-treatments in the oxygen-glucose deprivation/reperfusion (OGD/R) SH-SY5Y cells. Furthermore, JAK2/STAT3 and SOCS3 signaling interaction was demonstrated to be a critical responsor to the co-treatment of HSYA and TEN. In the subsequent experiments with silencing SOCS3 in OGD/R-exposed cells, we found that HSYA and TEN might suppress JAK2/STAT3 pathway through different regulatory mechanisms targeting SOCS3-negative feedback signaling. HSYA seemed to impose excessive activation of JAK2/STAT3 to trigger SOCS3-negative feedback signaling, while TEN appeared to provoke SOCS3 inhibitory feedback role directly to further attenuate JAK2-mediated signaling. Collectively, HSYA and TEN might modulate the crosstalk between JAK2/STAT3 and SOCS3 signaling pathways in different manners that eventually contributed to their synergistic therapeutic effects against cerebral ischemic stroke.
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Affiliation(s)
- Lu Yu
- Comprehensive Department of Traditional Chinese Medicine, Department of Neurology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Cheng Zhang
- Key Laboratory of Brain Functional Genomics, Ministry of Education, School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Lingling Gu
- Key Laboratory of Brain Functional Genomics, Ministry of Education, School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Hong Chen
- Department of Clinical Laboratory, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China
| | - Yan Huo
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Shuyan Wang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Jie Tao
- Comprehensive Department of Traditional Chinese Medicine, Department of Neurology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Chuan Xu
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - Qiujuan Zhang
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China.
| | - Mingliang Ma
- Key Laboratory of Brain Functional Genomics, Ministry of Education, School of Life Sciences, East China Normal University, Shanghai, 200062, China.
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Jun Zhang
- Department of Clinical Laboratory, Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal-Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 200092, China.
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Wang Y, Lv MN, Zhao WJ. Research on ferroptosis as a therapeutic target for the treatment of neurodegenerative diseases. Ageing Res Rev 2023; 91:102035. [PMID: 37619619 DOI: 10.1016/j.arr.2023.102035] [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] [Received: 05/13/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
Ferroptosis is an iron- and lipid peroxidation (LPO)-mediated programmed cell death type. Recently, mounting evidence has indicated the involvement of ferroptosis in neurodegenerative diseases, especially in Alzheimer's disease (AD), Parkinson's disease (PD), multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), Huntington's disease (HD), and so on. Treating ferroptosis presents opportunities as well as challenges for neurodegenerative diseases. This review provides a comprehensive overview of typical features of ferroptosis and the underlying mechanisms that contribute to its occurrence, as well as their implications in the pathogenesis and advancement of major neurodegenerative disorders. Meanwhile, we summarize the utilization of ferroptosis inhibition in both experimental and clinical approaches for the treatment of major neurodegenerative disorders. In addition, we specifically summarize recent advances in developing therapeutic means targeting ferroptosis in these diseases, which may guide future approaches for the effective management of these devastating medical conditions.
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Affiliation(s)
- Yi Wang
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, PR China
| | - Meng-Nan Lv
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, PR China
| | - Wei-Jiang Zhao
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, PR China; Department of Cell Biology, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, PR China.
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Meng F, Chu T, Feng P, Li N, Song C, Li C, Leng L, Song X, Chen W. Genome assembly of Polygala tenuifolia provides insights into its karyotype evolution and triterpenoid saponin biosynthesis. HORTICULTURE RESEARCH 2023; 10:uhad139. [PMID: 37671073 PMCID: PMC10476160 DOI: 10.1093/hr/uhad139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 07/05/2023] [Indexed: 09/07/2023]
Abstract
Polygala tenuifolia is a perennial medicinal plant that has been widely used in traditional Chinese medicine for treating mental diseases. However, the lack of genomic resources limits the insight into its evolutionary and biological characterization. In the present work, we reported the P. tenuifolia genome, the first genome assembly of the Polygalaceae family. We sequenced and assembled this genome by a combination of Illumnina, PacBio HiFi, and Hi-C mapping. The assembly includes 19 pseudochromosomes covering ~92.68% of the assembled genome (~769.62 Mb). There are 36 463 protein-coding genes annotated in this genome. Detailed comparative genome analysis revealed that P. tenuifolia experienced two rounds of whole genome duplication that occurred ~39-44 and ~18-20 million years ago, respectively. Accordingly, we systematically reconstructed ancestral chromosomes of P. tenuifolia and inferred its chromosome evolution trajectories from the common ancestor of core eudicots to the present species. Based on the transcriptomics data, enzyme genes and transcription factors involved in the synthesis of triterpenoid saponin in P. tenuifolia were identified. Further analysis demonstrated that whole-genome duplications and tandem duplications play critical roles in the expansion of P450 and UGT gene families, which contributed to the synthesis of triterpenoid saponins. The genome and transcriptome data will not only provide valuable resources for comparative and functional genomic researches on Polygalaceae, but also shed light on the synthesis of triterpenoid saponin.
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Affiliation(s)
- Fanbo Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- >State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Tianzhe Chu
- >State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Pengmian Feng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Nan Li
- School of Life Sciences, North China University of Science and Technology, Tangshan 063210, China
| | - Chi Song
- >State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chunjin Li
- School of Life Sciences, North China University of Science and Technology, Tangshan 063210, China
| | - Liang Leng
- >State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Institute of Herbgenomics, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiaoming Song
- School of Life Sciences, North China University of Science and Technology, Tangshan 063210, China
| | - Wei Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- >State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Life Sciences, North China University of Science and Technology, Tangshan 063210, China
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Zhang H, Lu F, Liu P, Qiu Z, Li J, Wang X, Xu H, Zhao Y, Li X, Wang H, Lu D, Qi R. A direct interaction between RhoGDIα/Tau alleviates hyperphosphorylation of Tau in Alzheimer's disease and vascular dementia. J Neuroimmune Pharmacol 2023; 18:58-71. [PMID: 35080740 DOI: 10.1007/s11481-021-10049-w] [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] [Received: 08/19/2021] [Accepted: 12/27/2021] [Indexed: 02/05/2023]
Abstract
RhoGDIα is an inhibitor of RhoGDP dissociation that involves in Aβ metabolism and NFTs production in Alzheimer's disease (AD) by regulating of RhoGTP enzyme activity. Our previous research revealed that RhoGDIα, as the target of Polygala saponin (Sen), might alleviate apoptosis of the nerve cells caused by hypoxia/reoxygenation (H/R). To further clarify the role of RhoGDIα in the generation of NFTs, we explored the relationship between RhoGDIα and Tau. We found out that RhoGDIα and Tau can bind with each other and interact by using coimmunoprecipitation (Co-IP) and GST pulldown methods in vitro. This RhoGDIα-Tau partnership was further verified by using immunofluorescence colocalization and fluorescence resonance energy transfer (FRET) approaches in PC12 cells. Using the RNA interference (RNAi) technique, we found that the RhoGDIα may be involved in an upstream signaling pathway for Tau. Subsequently, in Aβ25-35- and H/R-induced PC12 cells, forced expression of RhoGDIα via cDNA plasmid transfection was found to reduce the hyperphosphorylation of Tau, augment the expression of bcl-2 protein, and inhibit the expression of Bax protein (reducing the Bax/bcl-2 ratio) and the activity of caspase-3. In mouse AD and VaD models, forced expression of RhoGDIα via injection of a viral vector (pAAV-EGFP-RhoGDIα) into the lateral ventricle of the brain alleviated the pathological symptoms of AD and VaD. Finally, GST pulldown confirmed that the binding sites on RhoGDIα for Tau were located in the range of the ΔC33 fragment (aa 1-33). These results indicate that RhoGDIα is involved in the phosphorylation of Tau and apoptosis in AD and VaD. Overexpression of RhoGDIα can inhibit the generation of NFTs and delay the progress of these two types of dementia.
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Affiliation(s)
- Heping Zhang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Fan Lu
- Department of Emergency, First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China
| | - Panhong Liu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
- Department of Pathology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Zhaohui Qiu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
- Department of Pathology, The Eighth Affiliated Hospital, Sun Yat-Sen University, ShenZhen, 518033, China
| | - Jianling Li
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
- Department of Anesthesiology, First Affiliated Hospital of Jinan University, Guangzhou, 510630, China
| | - Xiaotong Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Hui Xu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Yandong Zhao
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
- Department of Pathology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510655, China
| | - Xuemin Li
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Anhui, 230031, China
| | - Huadong Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Daxiang Lu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Renbin Qi
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, Guangzhou, 510632, Guangdong, China.
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Zhao D, Yang K, Guo H, Zeng J, Wang S, Xu H, Ge A, Zeng L, Chen S, Ge J. Mechanisms of ferroptosis in Alzheimer's disease and therapeutic effects of natural plant products: A review. Biomed Pharmacother 2023; 164:114312. [PMID: 37210894 DOI: 10.1016/j.biopha.2023.114312] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 05/23/2023] Open
Abstract
Neurodegenerative diseases, such as Alzheimer's disease (AD), are characterized by massive loss of specific neurons. It is a progressive disabling, severe and fatal complex disease. Due to its complex pathogenesis and limitations of clinical treatment strategies, it poses a serious medical challenge and medical burden worldwide. The pathogenesis of AD is not clear, and its potential biological mechanisms include aggregation of soluble amyloid to form insoluble amyloid plaques, abnormal phosphorylation of tau protein and formation of intracellular neurofibrillary tangles (NFT), neuroinflammation, ferroptosis, oxidative stress and metal ion disorders. Among them, ferroptosis is a newly discovered programmed cell death induced by iron-dependent lipid peroxidation and reactive oxygen species. Recent studies have shown that ferroptosis is closely related to AD, but the mechanism remains unclear. It may be induced by iron metabolism, amino acid metabolism and lipid metabolism affecting the accumulation of iron ions. Some iron chelating agents (deferoxamine, deferiprone), chloroiodohydroxyquine and its derivatives, antioxidants (vitamin E, lipoic acid, selenium), chloroiodohydroxyquine and its derivatives Fer-1, tet, etc. have been shown in animal studies to be effective in AD and exert neuroprotective effects. This review summarizes the mechanism of ferroptosis in AD and the regulation of natural plant products on ferroptosis in AD, in order to provide reference information for future research on the development of ferroptosis inhibitors.
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Affiliation(s)
- Da Zhao
- Hunan University of Chinese Medicine, Changsha, China
| | - Kailin Yang
- Hunan University of Chinese Medicine, Changsha, China
| | - Hua Guo
- Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jinsong Zeng
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Shanshan Wang
- Hunan University of Chinese Medicine, Changsha, China
| | - Hao Xu
- Hunan University of Chinese Medicine, Changsha, China
| | - Anqi Ge
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Liuting Zeng
- Hunan University of Chinese Medicine, Changsha, China
| | - Shaowu Chen
- Hunan University of Chinese Medicine, Changsha, China
| | - Jinwen Ge
- Hunan University of Chinese Medicine, Changsha, China; Hunan Academy of Chinese Medicine, Changsha, China.
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The mechanism of ferroptosis regulating oxidative stress in ischemic stroke and the regulation mechanism of natural pharmacological active components. Biomed Pharmacother 2022; 154:113611. [PMID: 36081288 DOI: 10.1016/j.biopha.2022.113611] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 02/06/2023] Open
Abstract
Cerebrovascular diseases, such as ischemic stroke, pose serious medical challenges worldwide due to their high morbidity and mortality and limitations in clinical treatment strategies. Studies have shown that reactive oxygen species (ROS)-mediated inflammation, excitotoxicity, and programmed cell death of each neurovascular unit during post-stroke hypoxia and reperfusion play an important role in the pathological cascade. Ferroptosis, a programmed cell death characterized by iron-regulated accumulation of lipid peroxidation, is caused by abnormal metabolism of lipids, glutathione (GSH), and iron, and can accelerate acute central nervous system injury. Recent studies have gradually uncovered the pathological process of ferroptosis in the neurovascular unit of acute stroke. Some drugs such as iron chelators, ferrostatin-1 (Fer-1) and liproxstatin-1 (Lip-1) can protect nerves after neurovascular unit injury in acute stroke by inhibiting ferroptosis. In addition, combined with our previous studies on ferroptosis mediated by natural compounds in ischemic stroke, this review summarized the progress in the regulation mechanism of natural chemical components and herbal chemical components on ferroptosis in recent years, in order to provide reference information for future research on ferroptosis and lead compounds for the development of ferroptosis inhibitors.
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Tian Y, Qi Y, Cai H, Xu M, Zhang Y. Senegenin alleviates Aβ 1-42 induced cell damage through triggering mitophagy. JOURNAL OF ETHNOPHARMACOLOGY 2022; 295:115409. [PMID: 35640739 DOI: 10.1016/j.jep.2022.115409] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Senegenin (SEN), an active compound extracted from the traditional Chinese herb Polygala tenuifolia Willd. (a species in the genus Polygala, family Polygalaceae), could nourish neurons and resist neuronal damage in mouse models of Alzheimer's disease (AD). Amyloid-β (Aβ) depositions in neuronal cells may cause pathological changes such as oxidative stress which one return could cause severe damage to mitochondria in AD patients or animal models. Mitophagy is an important mechanism to selectively remove damaged mitochondria. In neurons, this process is mainly mediated by PTEN-induced putative kinase 1 (PINK1)/Parkin pathway. Previous studies have shown that SEN could reduce mitochondrial damage and inhibit apoptosis in neurons. Therefore, this study speculated that SEN might activate mitophagy to clear damaged mitochondria, thereby mitigating Aβ-induced cell damage in neuronal cells. AIM OF THE STUDY This study aimed to determine the effects of SEN on Aβ-induced cell damage, and further to explore whether SEN could induce mitophagy. Moreover, the regulatory role of mitophagy in the neuroptrotective effect of SEN would be elucidated. MATERIALS AND METHODS This study established an in vitro cell damage model using Aβ1-42 to treat mouse hippocampal neuron HT22 cells. The effects of SEN on cell damage were determined by MTT assay and lactate dehydrogenase (LDH) release assay. Reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) were detected by Cytation™5 cell imaging microplate detection system. The apoptotic rate was analyzed by flow cytometry. The effects of SEN on mitophagy were detected by transmission electron microscope, immunofluorescence and immunoblotting. RESULTS Firstly, HT22 cells were treated with 30 μM Aβ1-42 for 24 h to establish the damage model. It was found that 30 μM Aβ1-42 caused neuronal damages as evidenced by reduced cell viability, increased LDH release and ROS, collapsed MMP and elevated apoptosis. Secondly, Aβ1-42-incubated cells were treated with 10, 20, 40 and 60 μM SEN for 24 h. SEN significantly reduced the damage of Aβ1-42-incubated cells as shown by recovered cell viability and MMP, reduced apoptosis and ROS. Notably, SEN induced the formation of mitophagosomes and mitolysosomes, and elevated the conversion of LC3 I to LC3 II. Moreover, SEN down-regulated the expression of p62, promoted the accumulation of full-length PINK1 and the translocation of Parkin to mitochondria, decreased the expression of mitochondrial matrix protein HSP60, thus activating the PINK1/Parkin-mediated mitophagy. However, when cells were pretreated with 5 μM CsA (Cyclosporine A, a mitophagy inhibitor) for 2 h and then co-treated with 20 and 40 μM SEN for 24 h, the protective effects of SEN were compromised. CONCLUSIONS The present study demonstrated that SEN could alleviate Aβ1-42-induced cell damage through PINK1/Parkin-mediated mitophagy. Our findings justify the traditional use of P. tenuifolia in China with anti-aging or anti-neurodegenerative effects.
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Affiliation(s)
- Yihong Tian
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yongmei Qi
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Hui Cai
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Provincial Hospital, Lanzhou, 730000, China.
| | - Mengchen Xu
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yingmei Zhang
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China
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Zhang H, Zhou W, Li J, Qiu Z, Wang X, Xu H, Wang H, Lu D, Qi R. Senegenin Rescues PC12 Cells with Oxidative Damage Through Inhibition of Ferroptosis. Mol Neurobiol 2022; 59:6983-6992. [PMID: 36068400 DOI: 10.1007/s12035-022-03014-y] [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: 06/10/2022] [Accepted: 08/23/2022] [Indexed: 11/30/2022]
Abstract
Oxidative stress is one of the pathological mechanisms of Alzheimer's disease (AD), and ferroptosis has been determined to be involved in neurodegenerative diseases such as AD. Senegenin (Sen) prevents oxidative damage in nerve cells via a mechanism that may be highly related to ferroptosis. However, the mechanism of ferroptosis pathway involvement in AD is unclear. In this study, we established a model of PC12 cytotoxic injury induced by Aβ25-35, and we detected the level of oxidative damage, MMP, and ferroptosis-related protein expression. The results showed that, compared with control group, the level of ROS increased, GPX activities decreased, and MDA levels increased in Aβ25-35 group. Aβ25-35 could induce mitochondrial depolarization in PC12 cells and Fer-1 could not reverse this damage. WB revealed that Aβ25-35 group had increased ACSL4 and PEBP1 proteins, and decreased GPX4 protein. After adding Sen in the model, the level of oxidative damage was reduced, and mitochondrial depolarization was reversed compared with Aβ25-35 group. WB suggested that the expression of ACSL4 and PEBP1 proteins decreased, and the expression of GPX4 protein increased by Sen treatment. In conclusion, we found that Sen exhibits strong neuroprotective activity against Aβ25-35 induced oxidative damage and lipid metabolic associated with ferroptosis. Inhibiting nerve cell ferroptosis might facilitate the future development of strategies to AD.
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Affiliation(s)
- Heping Zhang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China
| | - Wei Zhou
- Department of Internal Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, Guangdong, China.,Department of Pathology, Guangzhou Chest Hospital, No. 62 Hengzhigang Rd, Guangzhou, 510095, Guangdong, China
| | - Jianling Li
- Department of Anesthesiology, First Affiliated Hospital of Jinan University, Guangdong, 510630, Guangzhou, China
| | - Zhaohui Qiu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China.,Department of Pathology, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518033, Guangdong, China
| | - Xiaotong Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China
| | - Hui Xu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China
| | - Huadong Wang
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China
| | - Daxiang Lu
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China
| | - Renbin Qi
- Department of Pathophysiology, Key Laboratory of State Administration of Traditional Chinese Medicine, School of Medicine, Jinan University, No. 601 Avenue Huangpu West, Guangzhou, 510632, Guangdong, China.
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11
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Chen Z, Yang Y, Han Y, Wang X. Neuroprotective Effects and Mechanisms of Senegenin, an Effective Compound Originated From the Roots of Polygala Tenuifolia. Front Pharmacol 2022; 13:937333. [PMID: 35924058 PMCID: PMC9341472 DOI: 10.3389/fphar.2022.937333] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
Senegenin is the main bioactive ingredient isolated from the dried roots of Polygala tenuifolia Willd. In recent years, senegenin has been proved to possess a variety of pharmacological activities, such as anti-oxidation, anti-inflammation, anti-apoptosis, enhancement of cognitive function. Besides, it has a good development prospect for the treatment of neurodegenerative diseases, depression, osteoporosis, cognitive dysfunction, ischemia-reperfusion injury and other diseases. However, there is no systematic literature that fully demonstrates the pharmacological effects of senegenin. In order to meet the needs of new drug research and precise medication, this review summarized the neuroprotective effects, mechanisms and gastrointestinal toxicity of senegenin based on the literatures published from the past 2 decades. In addition, an in-depth analysis of the existing problems in the current research as well as the future research directions have been conducted in order to provide a basis for the clinical application of this important plant extract.
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12
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Kowluru A, Gleason NF. Underappreciated roles for Rho GDP dissociation inhibitors (RhoGDIs) in cell function: Lessons learned from the pancreatic islet β-cell. Biochem Pharmacol 2022; 197:114886. [PMID: 34968495 PMCID: PMC8858860 DOI: 10.1016/j.bcp.2021.114886] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/10/2021] [Accepted: 12/13/2021] [Indexed: 11/02/2022]
Abstract
Rho subfamily of G proteins (e.g., Rac1) have been implicated in glucose-stimulated insulin secretion from the pancreatic β-cell. Interestingly, metabolic stress (e.g., chronic exposure to high glucose) results in sustained activation of Rac1 leading to increased oxidative stress, impaired insulin secretion and β-cell dysfunction. Activation-deactivation of Rho G proteins is mediated by three classes of regulatory proteins, namely the guanine nucleotide exchange factors (GEFs), which facilitate the conversion of inactive G proteins to their active conformations; the GTPase-activating proteins (GAPs), which convert the active G proteins to their inactive forms); and the GDP-dissociation inhibitors (GDIs), which prevent the dissociation of GDP from G proteins. Contrary to a large number of GEFs (82 members) and GAPs (69 members), only three members of RhoGDIs (RhoGDIα, RhoGDIβ and RhoGDIγ) are expressed in mammalian cells.Even though relatively smaller in number, the GDIs appear to play essential roles in G protein function (e.g., subcellular targeting) for effector activation and cell regulation. Emerging evidence also suggests that the GDIs are functionally regulated via post-translational modification (e.g., phosphorylation) and by lipid second messengers, lipid kinases and lipid phosphatases. We highlight the underappreciated regulatory roles of RhoGDI-Rho G protein signalome in islet β-cell function in health and metabolic stress. Potential knowledge gaps in the field, and directions for future research for the identification of novel therapeutic targets to loss of functional β-cell mass under the duress of metabolic stress are highlighted.
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Affiliation(s)
- Anjaneyulu Kowluru
- Biomedical Research Service, John D. Dingell VA Medical Center and Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI 48201, USA.
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13
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Pratensein Mitigates Oxidative Stress and NLRP3 Inflammasome Activation in OGD/R-Injured HT22 Cells by Activating Nrf2-Anti-oxidant Signaling. Neurotox Res 2022; 40:384-394. [PMID: 35064904 DOI: 10.1007/s12640-022-00472-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/06/2021] [Accepted: 01/04/2022] [Indexed: 10/19/2022]
Abstract
The current investigation seeks to uncover the neuroprotective effects and mechanisms of pratensein (Pra) against cerebral ischemia-reperfusion (CI/R) injury. An in vitro model was created by subjecting HT22 cells to oxygen-glucose deprivation/reoxygenation (OGD/R) injury. Various doses of Pra were administered to HT22 cells during the process of OGD/R. Nrf2 knockdown was achieved by siRNA transfection. Pra antagonized OGD/R-triggered HT22 cell damage, as suggested by increased cell viability and reduced levels of LDH secretion. Additionally, Pra reversed OGD/R-induced cell apoptosis, oxidative stress, and inflammatory injury. Transfection of Nrf2 siRNA partially ameliorated the protective effects of Pra on the OGD/R-stimulated increase in cell apoptosis, oxidative stress, and inflammatory response in HT22 cells. Pra significantly inhibited the expression of nod-like-receptor-protein-3 (NLRP3), apoptosis-associated speck-like protein containing a CARD (ASC), caspase-1, and cleaved caspase-1 protein in OGD/R-induced cells. Nrf2 knockdown reversed the benefits of Pra on NLRP3 inflammasome activation. Besides, Pra administration mitigated middle cerebral artery occlusion/reperfusion-induced cerebral infarction, neurological deficits, and neuronal apoptosis in vivo. This study found that Pra suppresses NLRP3 inflammasome activation through Nrf2 activation, resulting in reduced inflammatory responses and rates of apoptosis in OGD/R-stimulated HT22 cells, highlighting the neuroprotective properties of Pra in CI/R.
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14
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Wang Z, He C, Shi JS. Natural Products for the Treatment of Neurodegenerative Diseases. Curr Med Chem 2020; 27:5790-5828. [PMID: 31131744 DOI: 10.2174/0929867326666190527120614] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 05/06/2019] [Accepted: 05/09/2019] [Indexed: 12/13/2022]
Abstract
Neurodegenerative diseases are a heterogeneous group of disorders characterized by the progressive degeneration of the structure and function of the central nervous system or peripheral nervous system. Alzheimer's Disease (AD), Parkinson's Disease (PD) and Spinal Cord Injury (SCI) are the common neurodegenerative diseases, which typically occur in people over the age of 60. With the rapid development of an aged society, over 60 million people worldwide are suffering from these uncurable diseases. Therefore, the search for new drugs and therapeutic methods has become an increasingly important research topic. Natural products especially those from the Traditional Chinese Medicines (TCMs), are the most important sources of drugs, and have received extensive interest among pharmacist. In this review, in order to facilitate further chemical modification of those useful natural products by pharmacists, we will bring together recent studies in single natural compound from TCMs with neuroprotective effect.
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Affiliation(s)
- Ze Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi Guizhou 563003, China.,Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563003, P.R. China
| | - Chunyang He
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi Guizhou 563003, China.,Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, 563003, P.R. China
| | - Jing-Shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi Guizhou 563003, China
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15
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Deng X, Zhao S, Liu X, Han L, Wang R, Hao H, Jiao Y, Han S, Bai C. Polygala tenuifolia: a source for anti-Alzheimer's disease drugs. PHARMACEUTICAL BIOLOGY 2020; 58:410-416. [PMID: 32429787 PMCID: PMC7301717 DOI: 10.1080/13880209.2020.1758732] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/26/2020] [Accepted: 04/16/2020] [Indexed: 05/30/2023]
Abstract
Context: Alzheimer's disease (AD) is a chronic neurodegenerative disease that originates from central nervous system lesions or recessions. Current estimates suggest that this disease affects over 35 million people worldwide. However, lacking effective drugs is the biggest handicap in treating AD. In traditional Chinese medicine (TCM), Polygala tenuifolia Willd. (Polygalaceae) is generally used to treat insomnia, memory dysfunction and neurasthenia.Objective: This review article explores the role of P. tenuifolia and its active components in anti-Alzheimer's disease.Methods: Literature for the last ten years was obtained through a search on PubMed, SciFinder, CNKI, Google Scholar, Web of Science, Science Direct and China Knowledge Resource Integrated with the following keywords: Polygala tenuifolia, polygalasaponin XXXII (PGS 32), tenuifolin, polygalacic acid, senegenin, tenuigenin, Alzheimer's disease.Results: Polygala tenuifolia and its active components have multiplex neuroprotective potential associated with AD, such as anti-Aβ aggregation, anti-Tau protein, anti-inflammation, antioxidant, anti-neuronal apoptosis, enhancing central cholinergic system and promote neuronal proliferation.Conclusions: Polygala tenuifolia and its active components exhibit multiple neuroprotective effects. Hence, P. tenuifolia is a potential drug against Alzheimer's disease, especially in terms of prevention.
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Affiliation(s)
- Xinxin Deng
- Ningxia Medical University Pharmacy College, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Research Center of Modern Hui Medicine Engineering and Technology, Yinchuan, P. R. China
| | - Shipeng Zhao
- Ningxia Medical University Pharmacy College, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Research Center of Modern Hui Medicine Engineering and Technology, Yinchuan, P. R. China
| | - Xinqi Liu
- College of Basic Medical Sciences, Jilin University, Changchun, Jilin, P. R. China
| | - Lu Han
- Ningxia Medical University Pharmacy College, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Research Center of Modern Hui Medicine Engineering and Technology, Yinchuan, P. R. China
| | - Ruizhou Wang
- Ningxia Medical University Pharmacy College, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Research Center of Modern Hui Medicine Engineering and Technology, Yinchuan, P. R. China
| | - Huifeng Hao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing, P. R. China
| | - Yanna Jiao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing, P. R. China
| | - Shuyan Han
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing, P. R. China
| | - Changcai Bai
- Ningxia Medical University Pharmacy College, Key Laboratory of Hui Ethnic Medicine Modernization, Ministry of Education, Ningxia Research Center of Modern Hui Medicine Engineering and Technology, Yinchuan, P. R. China
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Amirzargar N, Heidari-Soureshjani S, Yang Q, Abbaszadeh S, Khaksarian M. Neuroprotective Effects of Medicinal Plants in Cerebral Hypoxia and Anoxia: A Systematic Review. ACTA ACUST UNITED AC 2020. [DOI: 10.2174/2210315509666190820103658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background:
Hypoxia and anoxia are dangerous and sometimes irreversible complications
in the central nervous system (CNS), which in some cases lead to death.
Objective:
The aim of this review was to investigate the neuroprotective effects of medicinal plants
in cerebral hypoxia and anoxia.
Methods:
The word hypox*, in combination with some herbal terms such as medicinal plant, phyto*
and herb*, was used to search for relevant publications indexed in the Institute for Scientific Information
(ISI) and PubMed from 2000-2019.
Results:
Certain medicinal plants and herbal derivatives can exert their protective effects in several
ways. The most important mechanisms are the inhibition of inducible nitric oxide synthase (iNOS),
production of NO, inhibition of both hypoxia-inducible factor 1α and tumor necrosis factor-alpha activation,
and reduction of extracellular glutamate, N-Methyl-D-aspartic and intracellular Ca (2+). In
addition, they have an antioxidant activity and can adjust the expression of genes related to oxidant
generation or antioxidant capacity. These plants can also inhibit lipid peroxidation, up-regulate superoxide
dismutase activity and inhibit the content of malondialdehyde and lactate dehydrogenase.
Moreover, they also have protective effects against cytotoxicity through down-regulation of the proteins
that causes apoptosis, anti-excitatory activity, inhibition of apoptosis signaling pathway, reduction
of pro-apoptotic proteins, and endoplasmic reticulum stress that causes apoptosis during hypoxia,
increasing anti-apoptotic protein, inhibition of protein tyrosine kinase activation, decreasing
proteases activity and DNA fragmentation, and upregulation of mitochondrial cytochrome oxidase.
Conclusion:
The results indicated that medicinal plants and their compounds mainly exert their neuroprotective
effects in hypoxia via regulating proteins that are related to antioxidant, anti-apoptosis
and anti-inflammatory activities.
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Affiliation(s)
- Nasibeh Amirzargar
- Department of Neurology, Rofeydeh Rehabilitation Hospital, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | | | - Qian Yang
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Heidelberg, Germany
| | - Saber Abbaszadeh
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mojtaba Khaksarian
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
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Lu L, Li X, Xu P, Zheng Y, Wang X. Tenuigenin down-regulates the release of nitric oxide, matrix metalloproteinase-9 and cytokines from lipopolysaccharide-stimulated microglia. Neurosci Lett 2017; 650:82-88. [PMID: 28392358 DOI: 10.1016/j.neulet.2017.04.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/15/2017] [Accepted: 04/01/2017] [Indexed: 01/24/2023]
Abstract
Tenuigenin (TEN), an active component of Polygala tenuifolia root extracts, has been shown to provide neuroprotection in neurodegenerative disorders. To date, most of these studies have focused on the effect that TEN has on neurons. Because activated microglia can release neurotoxic factors that cause neuronal damage, the present study was designed to investigate the effects of TEN on activated microglia. The results showed that TEN can significantly decrease the release of nitric oxide (NO) from lipopolysaccharide (LPS)-activated rat microglia in a dose-dependent manner. The western blotting results showed that TEN did not inhibit iNOS expression at protein level. However, the electron paramagnetic resonance (EPR) technique revealed that TEN directly scavenged the NO radical. Additionally, TEN can significantly decrease the secretion and mRNA levels of matrix metalloproteinase-9 (MMP-9) and pro-inflammatory cytokines (TNF-α/IL-1β) in activated microglia. At a high dose (10-4M), TEN can significantly inhibit the secretion of another gelatinolytic MMP, MMP-2, but it had no effect on the mRNA level of MMP-2. In conclusion, these results suggest that TEN exerts an anti-inflammatory effect by down-regulating the release of NO, MMP-9 and cytokines.
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Affiliation(s)
- Li Lu
- Department of Pharmacology, Capital Medical University, Beijing 100069, PR China
| | - Xiaorong Li
- Department of Pharmacology, Capital Medical University, Beijing 100069, PR China
| | - Pingxiang Xu
- Department of Pharmacology, Capital Medical University, Beijing 100069, PR China
| | - Yan Zheng
- Department of Physiology, Capital Medical University, Beijing 100069, PR China
| | - Xiaomin Wang
- Department of Neurobiology, Capital Medical University, Beijing 100069, PR China; Beijing Institute for Brain Disorders, Beijing 100069, PR China.
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Suo T, Wang H, Li Z. Application of proteomics in research on traditional Chinese medicine. Expert Rev Proteomics 2016; 13:873-81. [DOI: 10.1080/14789450.2016.1220837] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhang SQ, Wu MF, Gu R, Liu JB, Li Y, Zhu QS, Jiang JL. Senegenin inhibits neuronal apoptosis after spinal cord contusion injury. Neural Regen Res 2016; 11:657-63. [PMID: 27212931 PMCID: PMC4870927 DOI: 10.4103/1673-5374.180754] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Senegenin has been shown to inhibit neuronal apoptosis, thereby exerting a neuroprotective effect. In the present study, we established a rat model of spinal cord contusion injury using the modified Allen's method. Three hours after injury, senegenin (30 mg/g) was injected into the tail vein for 3 consecutive days. Senegenin reduced the size of syringomyelic cavities, and it substantially reduced the number of apoptotic cells in the spinal cord. At the site of injury, Bax and Caspase-3 mRNA and protein levels were decreased by senegenin, while Bcl-2 mRNA and protein levels were increased. Nerve fiber density was increased in the spinal cord proximal to the brain, and hindlimb motor function and electrophysiological properties of rat hindlimb were improved. Taken together, our results suggest that senegenin exerts a neuroprotective effect by suppressing neuronal apoptosis at the site of spinal cord injury.
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Affiliation(s)
- Shu-Quan Zhang
- Department of Orthopedics, Nankai Hospital, Tianjin, China
| | - Min-Fei Wu
- Department of Orthopedics, the Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Rui Gu
- Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
| | - Jia-Bei Liu
- Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
| | - Ye Li
- Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
| | - Qing-San Zhu
- Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
| | - Jin-Lan Jiang
- Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China; Scientific Research Center, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, China
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