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Liu Y, Qin K, Jiang C, Gao J, Hou B, Xie A. TMEM106B Knockdown Exhibits a Neuroprotective Effect in Parkinson's Disease via Decreasing Inflammation and Iron Deposition. Mol Neurobiol 2024:10.1007/s12035-024-04373-4. [PMID: 39044012 DOI: 10.1007/s12035-024-04373-4] [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: 04/19/2024] [Accepted: 07/16/2024] [Indexed: 07/25/2024]
Abstract
Parkinson's disease (PD) is closely related to iron accumulation and inflammation. Emerging evidence indicates that TMEM106B plays an essential role in PD. But whether TMEM106B could act on neuroinflammation and iron metabolism in PD has not yet been investigated. The aim of this study was to investigate the pathological mechanisms of inflammation and iron metabolism of TMEM106B in PD. 1-methyl-4-phenylpyridinium (MPP+)- and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced SH-SY5Y cells and mice were treated with LV-shTMEM106B and AAV-shTMEM106B to construct PD cellular and mouse models. Pole tests and open-field test (OFT) were performed to evaluate the locomotion of the mice. Immunohistochemistry and iron staining were used to detect TH expression and iron deposition in the SN. Iron staining was used to measure the levels of iron. Western blotting was used to detect the expression of inflammatory factors (tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6)), NOD-like receptor protein 3 (NLRP3) inflammasome, divalent metal transporter 1 (DMT1), and Ferroportin1 (FPN1)). Knockdown of TMEM106B improved motor ability and rescued dopaminergic (DA) neuron loss. TMEM106B knockdown attenuated the increases of TNF-α, IL-6, NLRP3 inflammasome, and DMT1 expression in the MPP+ and MPTP-induced PD models. Furthermore, TMEM106B knockdown also increases the expression of FPN1. This study provides the first evidence that knockdown of TMEM106B prevents dopaminergic neurodegeneration by modulating neuroinflammation and iron metabolism.
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Affiliation(s)
- Yumei Liu
- Department of Neurology, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong, China
| | - Kunpeng Qin
- Department of Neurology, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong, China
| | - Chunyan Jiang
- Department of Neurology, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong, China
| | - Jinzhao Gao
- Department of Neurology, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong, China
| | - Binghui Hou
- Department of Neurology, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong, China.
| | - Anmu Xie
- Department of Neurology, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266000, Shandong, China.
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Yang YL, Lin TK, Huang YH. MiR-29a efficiently suppresses the generation of reactive oxygen species and α-synuclein in a cellular model of Parkinson's disease by potentially targeting GSK-3β. Eur J Pharmacol 2024; 974:176615. [PMID: 38685306 DOI: 10.1016/j.ejphar.2024.176615] [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: 01/11/2024] [Revised: 04/04/2024] [Accepted: 04/25/2024] [Indexed: 05/02/2024]
Abstract
MicroRNA-29a (miR-29a) has been suggested to serve a potential protective function against Parkinson's disease (PD); however, the exact molecular mechanisms remain elusive. This study explored the protective role of miR-29a in a cellular model of PD using SH-SY5Y cell lines through iTRAQ-based quantitative proteomic and biochemistry analysis. The findings showed that using a miR-29a mimic in SH-SY5Y cells treated with 1-methyl-4-phenylpyridinium (MPP+) significantly decreased cell death and increased mitochondrial membrane potential. It also reduced mitochondrial reactive oxygen species (ROS) and the production of α-synuclein. Subsequent heatmap analysis using iTRAQ-based quantitative proteomics revealed remarkably contrasting protein expression profiles for 882 genes when comparing the groups treated with miR-29a mimic plus MPP + against the control group treated solely with MPP+. The KEGG pathway analysis of these 882 genes indicated the substantial role of miR-29a in the PD pathway (P = 1.58x10-5) and highlighted its function in mitochondrial genes. Furthermore, treatment with a miR-29a mimic in SH-SY5Y cells reduced the levels of GSK-3β, phosphorylated GSK-3β, and cleaved caspase-7 following exposure to MPP+. The miR-29a mimic also upregulated the expressions of α-synuclein clearance proteins FYCO1 and Rab7 in this cellular PD model, thereby inhibiting the production of α-synuclein. Luciferase activity analysis confirmed the specific binding of miR-29a to the 3' untranslated region (3'UTR) of GSK-3β, leading to its repression. Our findings demonstrated miR-29a's neuroprotective role in mitochondrial function and highlighted its potential to inhibit ROS and α-synuclein production, offering possible therapeutic avenues for PD treatment.
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Affiliation(s)
- Ya-Ling Yang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Tsu-Kung Lin
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan; Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan; Center of Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Ying-Hsien Huang
- Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, and Chang, Gung University College of Medicine, Kaohsiung, 83301, Taiwan; Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, and Chang, Gung University College of Medicine, Kaohsiung, 83301, Taiwan.
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Jeong J, Usman M, Li Y, Zhou XZ, Lu KP. Pin1-Catalyzed Conformation Changes Regulate Protein Ubiquitination and Degradation. Cells 2024; 13:731. [PMID: 38727267 PMCID: PMC11083468 DOI: 10.3390/cells13090731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 05/13/2024] Open
Abstract
The unique prolyl isomerase Pin1 binds to and catalyzes cis-trans conformational changes of specific Ser/Thr-Pro motifs after phosphorylation, thereby playing a pivotal role in regulating the structure and function of its protein substrates. In particular, Pin1 activity regulates the affinity of a substrate for E3 ubiquitin ligases, thereby modulating the turnover of a subset of proteins and coordinating their activities after phosphorylation in both physiological and disease states. In this review, we highlight recent advancements in Pin1-regulated ubiquitination in the context of cancer and neurodegenerative disease. Specifically, Pin1 promotes cancer progression by increasing the stabilities of numerous oncoproteins and decreasing the stabilities of many tumor suppressors. Meanwhile, Pin1 plays a critical role in different neurodegenerative disorders via the regulation of protein turnover. Finally, we propose a novel therapeutic approach wherein the ubiquitin-proteasome system can be leveraged for therapy by targeting pathogenic intracellular targets for TRIM21-dependent degradation using stereospecific antibodies.
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Affiliation(s)
- Jessica Jeong
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada; (J.J.)
- Robarts Research Institute, Western University, London, ON N6A 5B7, Canada
| | - Muhammad Usman
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada; (J.J.)
- Robarts Research Institute, Western University, London, ON N6A 5B7, Canada
| | - Yitong Li
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada; (J.J.)
- Robarts Research Institute, Western University, London, ON N6A 5B7, Canada
| | - Xiao Zhen Zhou
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada; (J.J.)
- Department of Pathology and Laboratory Medicine, and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada
- Lawson Health Research Institute, Western University, London, ON N6C 2R5, Canada
| | - Kun Ping Lu
- Departments of Biochemistry and Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON N6A 5C1, Canada; (J.J.)
- Robarts Research Institute, Western University, London, ON N6A 5B7, Canada
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Hu K, Zhu S, Wu F, Zhang Y, Li M, Yuan L, Huang W, Zhang Y, Wang J, Ren J, Yang H. Aureusidin ameliorates 6-OHDA-induced neurotoxicity via activating Nrf2/HO-1 signaling pathway and preventing mitochondria-dependent apoptosis pathway in SH-SY5Y cells and Caenorhabditis elegans. Chem Biol Interact 2024; 387:110824. [PMID: 38056806 DOI: 10.1016/j.cbi.2023.110824] [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: 10/08/2023] [Revised: 11/22/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
Movement disorder Parkinson's disease (PD) is the second most common neurodegenerative disease in the world after Alzheimer's disease, which severely affects the quality of patients' lives and imposes an increasingly heavy socioeconomic burden. Aureusidin is a kind of natural flavonoid compound with anti-inflammatory and anti-oxidant activities, while its pharmacological action and mechanism are rarely reported in PD. This study aimed to explore the neuroprotective effects and potential mechanisms of Aureusidin in PD. The present study demonstrated that Aureusidin protected SH-SY5Y cells from cell damage induced by 6-hydroxydopamine (6-OHDA) via inhibiting the mitochondria-dependent apoptosis and activating the Nrf2/HO-1 antioxidant signaling pathway. Additionally, Aureusidin diminished dopaminergic (DA) neuron degeneration induced by 6-OHDA and reduced the aggregation toxicity of α-synuclein (α-Syn) in Caenorhabditis elegans (C. elegans.) In conclusion, Aureusidin showed a neuroprotective effect in the 6-OHDA-induced PD model via activating Nrf2/HO-1 signaling pathway and prevented mitochondria-dependent apoptosis pathway, and these findings suggested that Aureusidin may be an effective drug for the treatment of PD.
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Affiliation(s)
- Kun Hu
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Susu Zhu
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Fanyu Wu
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Yongzhen Zhang
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Minyue Li
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Ling Yuan
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Wenjing Huang
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Yichi Zhang
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Jie Wang
- School of Pharmacy, Changzhou University, Changzhou, China
| | - Jie Ren
- School of Pharmacy, Changzhou University, Changzhou, China.
| | - Hao Yang
- Department of Pharmacy, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, China.
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Shin MJ, Eum WS, Youn GS, Park JH, Yeo HJ, Yeo EJ, Kwon HJ, Sohn EJ, Lee LR, Kim NY, Kwon SY, Kim SM, Jung HY, Kim DS, Cho SW, Kwon OS, Kim DW, Choi SY. Protective effects of cell permeable Tat-PIM2 protein on oxidative stress induced dopaminergic neuronal cell death. Heliyon 2023; 9:e15945. [PMID: 37223703 PMCID: PMC10200856 DOI: 10.1016/j.heliyon.2023.e15945] [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: 12/20/2022] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/25/2023] Open
Abstract
Background Oxidative stress is considered as one of the main causes of Parkinson's disease (PD), however the exact etiology of PD is still unknown. Although it is known that Proviral Integration Moloney-2 (PIM2) promotes cell survival by its ability to inhibit formation of reactive oxygen species (ROS) in the brain, the precise functional role of PIM2 in PD has not been fully studied yet. Objective We investigated the protective effect of PIM2 against apoptosis of dopaminergic neuronal cells caused by oxidative stress-induced ROS damage by using the cell permeable Tat-PIM2 fusion protein in vitro and in vivo. Methods Transduction of Tat-PIM2 into SH-SY5Y cells and apoptotic signaling pathways were determined by Western blot analysis. Intracellular ROS production and DNA damage was confirmed by DCF-DA and TUNEL staining. Cell viability was determined by MTT assay. PD animal model was induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) and protective effects were examined using immunohistochemistry. Results Transduced Tat-PIM2 inhibited the apoptotic caspase signaling and reduced the production of ROS induced by 1-methyl-4-phenylpyridinium (MPP+) in SH-SY5Y cells. Furthermore, we confirmed that Tat-PIM2 transduced into the substantia nigra (SN) region through the blood-brain barrier and this protein protected the Tyrosine hydroxylase-positive cells by observation of immunohistostaining. Tat-PIM2 also regulated antioxidant biomolecules such as SOD1, catalase, 4-HNE, and 8-OHdG which reduce the formation of ROS in the MPTP-induced PD mouse model. Conclusion These results indicated that Tat-PIM2 markedly inhibited the loss of dopaminergic neurons by reducing ROS damage, suggesting that Tat-PIM2 might be a suitable therapeutic agent for PD.
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Affiliation(s)
- Min Jea Shin
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Won Sik Eum
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Gi Soo Youn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Jung Hwan Park
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Eun Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyun Jung Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Eun Jeong Sohn
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Lee Re Lee
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Na Yeon Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Su Yeon Kwon
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Su Min Kim
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
| | - Hyo Young Jung
- Department of Veterinary Medicine & Institute of Veterinary Science, Chungnam National University, Daejeon, 34134, South Korea
| | - Duk-Soo Kim
- Department of Anatomy and BK21 FOUR Project, College of Medicine, Soonchunhyang University, Cheonan-si 31538, South Korea
| | - Sung-Woo Cho
- Department of Biochemistry and Molecular Biology, University of Ulsan College of Medicine, Seoul 05505, South Korea
| | - Oh-Shin Kwon
- School of Life Sciences, College of Natural Sciences Kyungpook National University, Taegu 41566, South Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, South Korea
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Ruffo P, De Amicis F, Giardina E, Conforti FL. Long-noncoding RNAs as epigenetic regulators in neurodegenerative diseases. Neural Regen Res 2022; 18:1243-1248. [PMID: 36453400 PMCID: PMC9838156 DOI: 10.4103/1673-5374.358615] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The growing and rapid development of high-throughput sequencing technologies have allowed a greater understanding of the mechanisms underlying gene expression regulation. Editing the epigenome and epitranscriptome directs the fate of the transcript influencing the functional outcome of each mRNA. In this context, non-coding RNAs play a decisive role in addressing the expression regulation at the gene and chromosomal levels. Long-noncoding RNAs, consisting of more than 200 nucleotides, have been shown to act as epigenetic regulators in several key molecular processes involving neurodegenerative disorders, such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and Huntington's disease. Long-noncoding RNAs are abundantly expressed in the central nervous system, suggesting that their deregulation could trigger neuronal degeneration through RNA modifications. The evaluation of their diagnostic significance and therapeutic potential could lead to new treatments for these diseases for which there is no cure.
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Affiliation(s)
- Paola Ruffo
- Medical Genetics Laboratory, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Emiliano Giardina
- Genomic Medicine Laboratory UILDM, IRCCS Fondazione Santa Lucia, Rome, Italy,Department of Biomedicine & Prevention, Tor Vergata University of Rome, Rome, Italy
| | - Francesca Luisa Conforti
- Medical Genetics Laboratory, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy,Correspondence to: Francesca Luisa Conforti, .
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Whole Exome Sequencing Study Identifies Novel Rare Risk Variants for Habitual Coffee Consumption Involved in Olfactory Receptor and Hyperphagia. Nutrients 2022; 14:nu14204330. [PMID: 36297015 PMCID: PMC9607528 DOI: 10.3390/nu14204330] [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: 09/17/2022] [Revised: 10/13/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
Habitual coffee consumption is an addictive behavior with unknown genetic variations and has raised public health issues about its potential health-related outcomes. We performed exome-wide association studies to identify rare risk variants contributing to habitual coffee consumption utilizing the newly released UK Biobank exome dataset (n = 200,643). A total of 34,761 qualifying variants were imported into SKAT to conduct gene-based burden and robust tests with minor allele frequency <0.01, adjusting the polygenic risk scores (PRS) of coffee intake to exclude the effect of common coffee-related polygenic risk. The gene-based burden and robust test of the exonic variants found seven exome-wide significant associations, such as OR2G2 (PSKAT = 1.88 × 10−9, PSKAT-Robust = 2.91 × 10−17), VEZT1 (PSKAT = 3.72 × 10−7, PSKAT-Robust = 1.41 × 10−7), and IRGC (PSKAT = 2.92 × 10−5, PSKAT-Robust = 1.07 × 10−7). These candidate genes were verified in the GWAS summary data of coffee intake, such as rs12737801 (p = 0.002) in OR2G2, and rs34439296 (p = 0.008) in IRGC. This study could help to extend genetic insights into the pathogenesis of coffee addiction, and may point to molecular mechanisms underlying health effects of habitual coffee consumption.
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Yang YL, Lin TK, Huang YH. MiR-29a inhibits MPP + - Induced cell death and inflammation in Parkinson's disease model in vitro by potential targeting of MAVS. Eur J Pharmacol 2022; 934:175302. [PMID: 36174668 DOI: 10.1016/j.ejphar.2022.175302] [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] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 11/26/2022]
Abstract
Parkinson's disease (PD) primarily affects the motor system and is the second most common age-related neurodegenerative disorder after Alzheimer's disease. Mitochondrial complex I deficiency and functional abnormalities are implicated in the development of PD. MicroRNA-29a (miR-29a) has emerged as a critical miRNA in PD. This study aims to investigate the protective role of miR-29a in MPP+ in SH-SY5Y cell lines in vitro PD model by targeting mitochondrial antiviral signaling protein (MAVS). Administration of MPP + inhibited miR-29a expression in SH-SY5Y cell lines. Our findings prove that miR-29a mimic treatment decreased cell death, ROS production, MAVS, p-IRF3, p-NFκBp65, IL-6, cleaved caspase-3, cleaved-PARP, LC3BII, and death while increasing glutathione peroxidase 1 and manganese superoxide dismutase after MPP + treatment in SH-SY5Y cells. Furthermore, MAVS expression was significantly corrected with the above genes in our in vitro model of PD. Luciferase activity analysis also confirmed that miR-29a specific binding 3'UTR of MAVS repressed expression. In conclusion, this research provides novel insight into a neuroprotective pathway of miR-29a and could thus serve as a possible therapeutic target for improving the treatment of PD.
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Affiliation(s)
- Ya-Ling Yang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital, And Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Tsu-Kung Lin
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan; Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, And Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan; Center of Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Ying-Hsien Huang
- Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, And Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan; Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital, And Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan.
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Almarfadi OM, Siddiqui NA, Shahat AA, Alqahtani AS, Alam P, Nasr FA, Alshahrani SS, Noman OM. Quantification of biomarkers and evaluation of antioxidant, anti-inflammatory, and cytotoxicity properties of Dodonaea viscosa grown in Saudi Arabia using HPTLC technique. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Dodonaea viscosa (Sapindaceae) was collected from Riyadh, Saudi Arabia. For the simultaneous measurement of quercetin and kaempferol, a validated high-performance thin-layer chromatography (HPTLC) approach was devised in D. viscosa leaf extract. The antioxidant activity was evaluated using diphenyl 1-picrylhydrazyl (DPPH) and 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) assays. Moreover, the cytotoxic effect was tested against three cancer cell lines A549, HepG2, and MDA-MB-231. The potential anti-inflammatory properties of different fractions of D. viscosa were also evaluated using lipopolysaccharide (LPS)-induced THP-1 macrophages cells. The test samples include a crude extract of leaves and its solvent-soluble fractions of D. viscosa. The results showed that the crude extract and its fractions exhibited various significant biological activities, the fraction of chloroform demonstrated the highest free radical scavenging activity with IC50 values: 172.2 and 257.7 µg/mL for both DPPH and ABTS tests. Additionally, the chloroform fraction had the greatest cytotoxic activity against MDA-MB-231 (IC50 values: 24.6 ± 0.4 µg/mL). Moreover, the chloroform fraction exhibited the highest downregulation of the LPS-induced expression of TNF-α and IL-6. Quercetin and kaempferol were estimated concurrently in leaves crude extract using a validated technique on an HPTLC plate (10 cm2 × 10 cm2) with a combination of toluene–ethyl acetate–formic acid (5:4:0.2; v/v/v) as the mobile phase and a λ
max of 254 nm. The amount of quercetin and kaempferol was found to be 31.8 and 15.01 mg/g of dried leaf extract, respectively. The presence of high levels of quercetin and kaempferol in D. viscosa leaves extract could explain its remarkable antioxidant, cytotoxic, and anti-inflammatory effects. The devolved HPTLC method can be used for routine analysis and standardization of D. viscosa crude plant material, extracts, and/or finished products using quercetin and kaempferol as appropriate markers.
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Affiliation(s)
- Omer M. Almarfadi
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Nasir A. Siddiqui
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Abdelaaty A. Shahat
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Ali S. Alqahtani
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Perwez Alam
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Fahd A. Nasr
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Saad S. Alshahrani
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Omar M. Noman
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
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An Amish founder population reveals rare-population genetic determinants of the human lipidome. Commun Biol 2022; 5:334. [PMID: 35393526 PMCID: PMC8989972 DOI: 10.1038/s42003-022-03291-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 03/17/2022] [Indexed: 12/02/2022] Open
Abstract
Identifying the genetic determinants of inter-individual variation in lipid species (lipidome) may provide deeper understanding and additional insight into the mechanistic effect of complex lipidomic pathways in CVD risk and progression beyond simple traditional lipids. Previous studies have been largely population based and thus only powered to discover associations with common genetic variants. Founder populations represent a powerful resource to accelerate discovery of previously unknown biology associated with rare population alleles that have risen to higher frequency due to genetic drift. We performed a genome-wide association scan of 355 lipid species in 650 individuals from the Amish founder population including 127 lipid species not previously tested. To the best of our knowledge, we report for the first time the lipid species associated with two rare-population but Amish-enriched lipid variants: APOB_rs5742904 and APOC3_rs76353203. We also identified novel associations for 3 rare-population Amish-enriched loci with several sphingolipids and with proposed potential functional/causal variant in each locus including GLTPD2_rs536055318, CERS5_rs771033566, and AKNA_rs531892793. We replicated 7 previously known common loci including novel associations with two sterols: androstenediol with UGT locus and estriol with SLC22A8/A24 locus. Our results show the double power of founder populations and detailed lipidome to discover novel trait-associated variants. A GWAS of 355 lipid species in the Old Order Amish founder population reveals associations between Amish-enriched loci and several sphingolipids.
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Knockdown of optineurin controls C2C12 myoblast differentiation via regulating myogenin and MyoD expressions. Differentiation 2021; 123:1-8. [PMID: 34844057 DOI: 10.1016/j.diff.2021.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/20/2022]
Abstract
Mutations in optineurin (OPTN) have been identified in a small proportion of sporadic and familial amyotrophic lateral sclerosis (ALS) cases. Recent evidences suggest that OPTN would be involved in not only the pathophysiological mechanisms of motor neuron death of ALS but also myofiber degeneration of sporadic inclusion body myositis. However, the detailed role of OPTN in muscle remains unclear. Initially, we showed that OPTN expression levels were significantly increased in the denervated muscles of mice, suggesting that OPTN may be involved in muscle homeostasis. To reveal the molecular role of OPTN in muscle atrophy, we used cultured C2C12 myotubes treated with tumor necrosis factor-like inducer of apoptosis (TWEAK) as an in vitro model of muscle atrophy. Our data showed that OPTN had no effect on the process of muscle atrophy in this model. On the other hand, we found that myogenic differentiation was affected by OPTN. Immunoblotting analysis showed that OPTN protein levels gradually decreased during C2C12 differentiation. Furthermore, OPTN knockdown inhibited C2C12 differentiation, accompanied by reduction of mRNA and protein expression levels of myogenin and MyoD. These findings suggested that OPTN may have a novel function in muscle homeostasis and play a role in the pathogenesis of neuromuscular diseases.
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12
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Zaim M, Kara I, Muduroglu A. Black carrot anthocyanins exhibit neuroprotective effects against MPP+ induced cell death and cytotoxicity via inhibition of oxidative stress mediated apoptosis. Cytotechnology 2021; 73:827-840. [PMID: 34776632 DOI: 10.1007/s10616-021-00500-4] [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: 07/09/2020] [Accepted: 10/04/2021] [Indexed: 11/30/2022] Open
Abstract
Parkinson's disease (PD) is a common chronic neurodegenerative disease induced by the death of dopaminergic neurons. Anthocyanins are naturally found antioxidants and well-known for their preventive effects in neurodegenerative disorders. Black carrots (Daucus carota L. ssp. sativus var. atrorubens Alef.) are a rich source of anthocyanins predominantly including acylated cyanidin-based derivatives making them more stable. However, there have been no reports analysing the neuroprotective role of black carrot anthocyanins (BCA) on PD. In order to investigate the potential neuroprotective effect of BCA, human SH-SY5Y cells were treated with MPP+ (1-methyl-4-phenylpyridinium) to induce PD associated cell death and cytotoxicity. Anthocyanins were extracted from black carrots and the composition was determined by HPLC-DAD. SH-SY5Y cells were co-incubated with BCA (2.5, 5, 10, 25, 50, 100 µg/ml) and 0.5 mM MPP+ to determine the neuroprotective effect of BCA against MPP+ induced cell death and cytotoxicity. Results indicate that BCA concentrations did not have any adverse effect on cell viability. BCA revealed its cytoprotective effect, especially at higher concentrations (50, 100 µg/ml) by increasing metabolic activity and decreasing membrane damage. BCA exhibited antioxidant activity via scavenging MPP+ induced reactive oxygen species (ROS) and protecting dopaminergic neurons from ROS mediated apoptosis. These results suggest a neuroprotective effect of BCA due to its high antioxidant and antiapoptotic activity, along with the absence of cytotoxicity. The elevated stability of BCA together with potential neuroprotective effects may shed light to future studies in order to elucidate the mechanism and further neuro-therapeutic potential of BCA which is promising as a neuroprotective agent. Supplementary Information The online version contains supplementary material available at 10.1007/s10616-021-00500-4.
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Affiliation(s)
- Merve Zaim
- SANKARA Brain and Biotechnology Research Center, Entertech Technocity, Avcilar, Istanbul Turkey
| | - Ihsan Kara
- SANKARA Brain and Biotechnology Research Center, Entertech Technocity, Avcilar, Istanbul Turkey
| | - Aynur Muduroglu
- Department of Physical Therapy and Rehabilitation, Nisantasi University, Maslak, Istanbul Turkey
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13
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Kane EI, Waters KL, Spratt DE. Intersection of Redox Chemistry and Ubiquitylation: Post-Translational Modifications Required for Maintaining Cellular Homeostasis and Neuroprotection. Cells 2021; 10:2121. [PMID: 34440890 PMCID: PMC8394436 DOI: 10.3390/cells10082121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 12/15/2022] Open
Abstract
Neurodegeneration has been predominantly recognized as neuronal breakdown induced by the accumulation of aggregated and/or misfolded proteins and remains a preliminary factor in age-dependent disease. Recently, critical regulating molecular mechanisms and cellular pathways have been shown to induce neurodegeneration long before aggregate accumulation could occur. Although this opens the possibility of identifying biomarkers for early onset diagnosis, many of these pathways vary in their modes of dysfunction while presenting similar clinical phenotypes. With selectivity remaining difficult, it is promising that these neuroprotective pathways are regulated through the ubiquitin-proteasome system (UPS). This essential post-translational modification (PTM) involves the specific attachment of ubiquitin onto a substrate, specifically marking the ubiquitin-tagged protein for its intracellular fate based upon the site of attachment, the ubiquitin chain type built, and isopeptide linkages between different ubiquitin moieties. This review highlights both the direct and indirect impact ubiquitylation has in oxidative stress response and neuroprotection, and how irregularities in these intricate processes lead towards the onset of neurodegenerative disease (NDD).
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Affiliation(s)
| | | | - Donald E. Spratt
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA; (E.I.K.); (K.L.W.)
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14
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Öz A, Çelik Ö. The effects of neuronal cell differentiation on TRPM7, TRPM8 and TRPV1 channels in the model of Parkinson's disease. Neurol Res 2021; 44:24-37. [PMID: 34256685 DOI: 10.1080/01616412.2021.1952512] [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] [Indexed: 01/22/2023]
Abstract
Transient Receptor Potential Melastatin-like 7 (TRPM7), Transient Receptor Potential Melastatin-like 8 (TRPM8) and Transient Receptor Potential Vanilloid-like 1 (TRPV1) channels are expressed in neurological tissues such as brain cortex, dorsal root ganglion and hippocampal neurons and involved in several neurological diseases. The SH-SY5Y neuronal cell line is frequently used as a cellular model of neurodegenerative diseases including Parkinson's disease. The differentiated SH-SY5Y cells have much neuronal structure, function and exaggerated neuronal marker expression. However, we have less data about how differentiation induces TRP channel expression and how TRP channels have a role in cellular functions in Parkinson's disease model in SH-SY5Y cells. Hence, we aimed to investigate the effects of differentiation phenomena on TRPM7, TRPM8 and TRPV1 cation channel expression and related Ca2+ signaling. We also made some other analysis to elucidate TRP channels' function in MPP induced apoptosis, mitochondrial membrane potential levels, intracellular reactive oxygen species production, caspase 3 and caspase 9 enzyme activities in differentiated or undifferentiated SH-SY5Y neuronal cells. Herein we concluded that TRPM7, TRPM8 and TRPV1 cation channels have pivotal effects on differentiation and MPP induced Parkinson's disease model in SH-SY5Y cells.
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Affiliation(s)
- Ahmi Öz
- Department of Biophysics, School of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - Ömer Çelik
- Department of Biophysics, School of Medicine, Süleyman Demirel University, Isparta, Turkey.,Neuroscience Research Center, Süleyman Demirel University, Isparta, Turkey
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15
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Bai L, Yan F, Deng R, Gu R, Zhang X, Bai J. Thioredoxin-1 Rescues MPP +/MPTP-Induced Ferroptosis by Increasing Glutathione Peroxidase 4. Mol Neurobiol 2021; 58:3187-3197. [PMID: 33634378 DOI: 10.1007/s12035-021-02320-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 02/03/2021] [Indexed: 12/30/2022]
Abstract
Parkinson's disease (PD), a common neurodegenerative disease, is typically associated with the loss of dopaminergic neuron in the substantia nigra pars compacta (SNpc). Ferroptosis is a newly identified cell death, which associated with iron accumulation, glutathione (GSH) depletion, lipid peroxidation formation, reactive oxygen species (ROS) accumulation, and glutathione peroxidase 4 (GPX4) reduction. It has been reported that ferroptosis is linked with PD.Thioredoxin-1 (Trx-1) is a redox regulating protein and plays various roles in regulating the activity of transcription factors and inhibiting apoptosis. However, whether Trx-1 plays the role in regulating ferroptosis involved in PD is still unknown. Our present study showed that 1-methyl-4-phenylpyridinium (MPP+) decreased cell viability, GPX4, and Trx-1, which were reversed by Ferrostatin-1 (Fer-1) in PC 12 cells and SH-SY5Y cells. Moreover, the decreased GPX4 and GSH, and increased ROS were inhibited by Fer-1 and Trx-1 overexpression. We further repeated that behavior deficits resulted from 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) were improved in Trx-1 overexpression transgenic mice. Trx-1 reversed the decreases of GPX4 and tyrosine hydroxylase (TH) induced by MPTP in the substantia nigra pars compacta (SNpc). Our results suggest that Trx-1 inhibits ferroptosis in PD through regulating GPX4 and GSH.
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Affiliation(s)
- Liping Bai
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Fang Yan
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Ruhua Deng
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Rou Gu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Xianwen Zhang
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China
| | - Jie Bai
- Laboratory of Molecular Neurobiology, Medical School, Kunming University of Science and Technology, No.727 Jingming South Road, Kunming, 650500, China.
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16
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Wang L, Yang YF, Chen L, He ZQ, Bi DY, Zhang L, Xu YW, He JC. Compound Dihuang Granule Inhibits Nigrostriatal Pathway Apoptosis in Parkinson's Disease by Suppressing the JNK/AP-1 Pathway. Front Pharmacol 2021; 12:621359. [PMID: 33897417 PMCID: PMC8060647 DOI: 10.3389/fphar.2021.621359] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/12/2021] [Indexed: 12/28/2022] Open
Abstract
Compound Dihuang Granule (CDG) is widely used in traditional Chinese medicine (TCM) for the treatment of Parkinson's disease (PD). It has been shown to alleviate PD symptoms. However, the molecular mechanisms of its action have not been established. To establish the molecular mechanisms of CDG against PD, we used TCM network pharmacology methods to predict its molecular targets and signaling pathways, followed by experimental validation. The Core Protein protein interaction (PPI) network of the 150 intersections between CDG and PD-related genes, comprising 23 proteins, including CASP3 (caspase-3), MAPK8 (JNK), FOS (c-Fos), and JUN (c-Jun). KEGG and GO analyses revealed that apoptotic regulation and MAPK signaling pathways were significantly enriched. Since c-Jun and c-Fos are AP-1 subunits, an important downstream JNK effector, we investigated if the JNK/AP-1 pathway influences CDG against apoptosis through the nigrostriatal pathways in PD rat models. Molecular docking analysis found that the top three bioactive compounds exhibiting the highest Degree Centrality following online database and LC-MS analysis had high affinities for JNK. Experimental validation analysis showed that CDG decreased the number of rotating laps and suppressed the levels of phosphorylated c-Jun, c-Fos, and JNK, as well as the number of TUNEL positive cells and the cleaved caspase-3 level in the nigrostriatal pathway. Furthermore, CDG treatment elevated the number of TH neurons, TH expression level, and Bcl-2/Bax protein ratio in a 6-OHDA-induced PD rat. These findings are in tandem with those obtained using SP600125, a specific JNK inhibitor. In conclusion, CDG suppresses the apoptosis of the nigrostriatal pathway and relieves PD symptoms by suppressing the JNK/AP-1 signaling pathway.
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Affiliation(s)
- Li Wang
- Department of Diagnostics of Traditional Chinese Medicine, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Experiment Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu-fang Yang
- Department of Diagnostics of Traditional Chinese Medicine, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Long Chen
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhu-qing He
- Department of Diagnostics of Traditional Chinese Medicine, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dian-yong Bi
- Department of Diagnostics of Traditional Chinese Medicine, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lei Zhang
- Department of Diagnostics of Traditional Chinese Medicine, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yan-wu Xu
- Department of Biochemistry, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian-cheng He
- Department of Diagnostics of Traditional Chinese Medicine, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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17
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Yeasts as Complementary Model Systems for the Study of the Pathological Repercussions of Enhanced Synphilin-1 Glycation and Oxidation. Int J Mol Sci 2021; 22:ijms22041677. [PMID: 33562355 PMCID: PMC7915245 DOI: 10.3390/ijms22041677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 01/22/2023] Open
Abstract
Synphilin-1 has previously been identified as an interaction partner of α-Synuclein (αSyn), a primary constituent of neurodegenerative disease-linked Lewy bodies. In this study, the repercussions of a disrupted glyoxalase system and aldose reductase function on Synphilin-1 inclusion formation characteristics and cell growth were investigated. To this end, either fluorescent dsRed-tagged or non-tagged human SNCAIP, which encodes the Synphilin-1 protein, was expressed in Saccharomyces cerevisiae and Schizosaccharomyces pombe yeast strains devoid of enzymes Glo1, Glo2, and Gre3. Presented data shows that lack of Glo2 and Gre3 activity in S. cerevisiae increases the formation of large Synphilin-1 inclusions. This correlates with enhanced oxidative stress levels and an inhibitory effect on exponential growth, which is most likely caused by deregulation of autophagic degradation capacity, due to excessive Synphilin-1 aggresome build-up. These findings illustrate the detrimental impact of increased oxidation and glycation on Synphilin-1 inclusion formation. Similarly, polar-localised inclusions were observed in wild-type S. pombe cells and strains deleted for either glo1+ or glo2+. Contrary to S. cerevisiae, however, no growth defects were observed upon expression of SNCAIP. Altogether, our findings show the relevance of yeasts, especially S. cerevisiae, as complementary models to unravel mechanisms contributing to Synphilin-1 pathology in the context of neurodegenerative diseases.
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18
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Yang W, Hao W, Meng Z, Ding S, Li X, Zhang T, Huang W, Xu L, Zhang Y, Yang J, Gu X. Molecular Regulatory Mechanism and Toxicology of Neurodegenerative Processes in MPTP/Probenecid-Induced Progressive Parkinson's Disease Mice Model Revealed by Transcriptome. Mol Neurobiol 2021; 58:603-616. [PMID: 32997292 PMCID: PMC7843579 DOI: 10.1007/s12035-020-02128-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease caused by a variety of unclear complex pathogenic factors. The 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine/probenecid (MPTP/p)-induced progressive PD mice is a well-recognized classic model for studying PD, but the molecular toxicology of this model is still unclear. Here, for the first time, we report gradual neurodegenerative processes in MPTP/p-induced progressive PD mice model using RNA-seq. Transcriptional responses are orchestrated to regulate the expression of many genes in substantia nigra, such as Ntf3, Pitx3, Th, and Drd2, leading to the degeneration of dopaminergic neurons at last. We proposed that the established model could be divided into three phases based on their molecular toxicological features: "the stress response phase" which maintained the microenvironment homeostasis, "the pre-neurodegenerative phase" which demonstrated observed MPTP/p cytotoxicity and gradual degeneration of dopaminergic neurons, and "the neurodegenerative phase" which reflected distinct damage and dopaminergic neuron apoptotic process. Glia cells exhibited a certain protective effect on dopaminergic neurons in 3rd and 6th MPTP/p-induced cytotoxicity. But in 10th MPTP/p injection, glia cells play a promoting role in PD and tissue damages caused by oxidative stress. This study also indicated that the substantia nigra of PD mice showed unique patterns of changes at each stage. Moreover, neurotrophic signaling pathway, ECM-receptor interaction, oxidative phosphorylation, apoptosis and necroptosis were enriched at 3rd and 6th MPTP/p injection, which might be associated with the PD progress. This study provided an extensive data set of molecular toxicology for elucidating of PD progression and offered comprehensive theoretical knowledge for the development of new therapy.
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Affiliation(s)
- Weiwei Yang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wenwen Hao
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhuo Meng
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Shiyan Ding
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiaodi Li
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tao Zhang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Weixiao Huang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Lian Xu
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
| | - Yu Zhang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jian Yang
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.
| | - Xiaosong Gu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.
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19
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Jiang L, Zhao Y, Zhao P, Zhou S, Ji Z, Huo D, Zhong D, Hou C. Electrochemical sensor based on reduced graphene oxide supported dumbbell-shaped CuCo2O4 for real-time monitoring of H2O2 released from cells. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105521] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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Xu Y, Yu J, Ma C, Gong Z, Wu X, Deng G. Impact of knockdown LincRNA-Cox2 on apoptosis of macrophage infected with Bacillus Calmette-Guérin. Mol Immunol 2020; 130:85-95. [PMID: 33250268 DOI: 10.1016/j.molimm.2020.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/23/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023]
Abstract
Mycobacterium tuberculosis (Mtb)-induced apoptosis of alveolar macrophages plays an important role in the pathogenesis of tuberculosis. Previous studies indicated that massive LncRNAs could deteriorate MTB invasion or latent infection by regulating macrophage's apoptosis. However, whether LincRNA-Cox2 is involved in apoptosis of macrophage infected with Mtb is unclear. In this study, we found Bacillus Calmette-Guerin(BCG)infection induced cell apoptosis with a increasing LincRNA-Cox2 expression in RAW264.7 cells. Furthermore, the activation of TLR signal pathway elevated the expression of lincRNA-Cox2. In this regard, we used small interfering RNA to explore the role of LincRNA-Cox2 on regulating apoptosis of RAW264.7 cells infected with BCG. The results showed that si-LincRNA-Cox2 was capable of increased the expression of apoptosis-associated proteins and accumulation of ROS in BCG-infected RAW264.7 cells. Mechanically, si-LincRNA-Cox2 facilitated BCG-induced macrophage apoptosis by activating the intrinsic apoptotic pathway as well as increased the genes expression of PERK/eIF2α/CHOP. These results provide novel insights into host-pathogen interactions and highlight the potential role of LincRNA-Cox2 in regulating apoptosis induced by BCG-infection.
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Affiliation(s)
- Yanan Xu
- Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, NingXia University, NingXia, Yinchuan, 750021, China; School of Life Science, NingXia University, NingXia, Yinchuan, 750021, China
| | - Jialin Yu
- Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, NingXia University, NingXia, Yinchuan, 750021, China; School of Life Science, NingXia University, NingXia, Yinchuan, 750021, China
| | - Chenjie Ma
- Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, NingXia University, NingXia, Yinchuan, 750021, China; School of Life Science, NingXia University, NingXia, Yinchuan, 750021, China
| | - Zhaoqian Gong
- Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, NingXia University, NingXia, Yinchuan, 750021, China; School of Life Science, NingXia University, NingXia, Yinchuan, 750021, China
| | - Xiaoling Wu
- Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, NingXia University, NingXia, Yinchuan, 750021, China; School of Life Science, NingXia University, NingXia, Yinchuan, 750021, China.
| | - Guangcun Deng
- Key Lab of Ministry of Education for Protection and Utilization of Special Biological Resources in Western China, NingXia University, NingXia, Yinchuan, 750021, China; School of Life Science, NingXia University, NingXia, Yinchuan, 750021, China.
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21
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Zhou S, Zhang D, Guo J, Chen Z, Chen Y, Zhang J. Long non‐coding
RNA
NORAD functions as a
microRNA‐204‐5p
sponge to repress the progression of Parkinson's disease in vitro by increasing the solute carrier family 5 member 3 expression. IUBMB Life 2020; 72:2045-2055. [PMID: 32687247 DOI: 10.1002/iub.2344] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/16/2020] [Accepted: 06/18/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Shufang Zhou
- Department of NeurologyHuaihe Hospital of Henan University Kaifeng China
| | - Dan Zhang
- Department of DentistryThe First Affiliated Hospital of Zhengzhou University Zhengzhou China
| | - Junnan Guo
- Department of NeurologyHuaihe Hospital of Henan University Kaifeng China
| | - Zhenzhen Chen
- Department of Rehabilitation MedicineHuaihe Hospital of Henan University Kaifeng China
| | - Yong Chen
- Department of NeurologyHuaihe Hospital of Henan University Kaifeng China
| | - Junshi Zhang
- Department of NeurologyHuaihe Hospital of Henan University Kaifeng China
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22
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Meyer DN, Crofts EJ, Akemann C, Gurdziel K, Farr R, Baker BB, Weber D, Baker TR. Developmental exposure to Pb 2+ induces transgenerational changes to zebrafish brain transcriptome. CHEMOSPHERE 2020; 244:125527. [PMID: 31816550 PMCID: PMC7015790 DOI: 10.1016/j.chemosphere.2019.125527] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 05/24/2023]
Abstract
Lead (Pb2+) is a major public health hazard for urban children, with profound and well-characterized developmental and behavioral implications across the lifespan. The ability of early Pb2+ exposure to induce epigenetic changes is well-established, suggesting that Pb2+-induced neurobehavioral deficits may be heritable across generations. Understanding the long-term and multigenerational repercussions of lead exposure is crucial for clarifying both the genotypic alterations behind these behavioral outcomes and the potential mechanism of heritability. To study this, zebrafish (Danio rerio) embryos (<2 h post fertilization; EK strain) were exposed for 24 h to waterborne Pb2+ at a concentration of 10 μM. This exposed F0 generation was raised to adulthood and spawned to produce the F1 generation, which was subsequently spawned to produce the F2 generation. Previous avoidance conditioning studies determined that a 10 μM Pb2+ dose resulted in learning impairments persisting through the F2 generation. RNA was extracted from control- and 10 μM Pb2+-lineage F2 brains, (n = 10 for each group), sequenced, and transcript expression was quantified utilizing Quant-Seq. 648 genes were differentially expressed in the brains of F2 lead-lineage fish versus F2 control-lineage fish. Pathway analysis revealed altered genes in processes including synaptic function and plasticity, neurogenesis, endocrine homeostasis, and epigenetic modification, all of which are implicated in lead-induced neurobehavioral deficits and/or their inheritance. These data will inform future investigations to elucidate the mechanism of adult-onset and transgenerational health effects of developmental lead exposure.
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Affiliation(s)
- Danielle N Meyer
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, USA; Institute of Environmental Health Sciences, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Emily J Crofts
- Institute of Environmental Health Sciences, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Camille Akemann
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, USA; Institute of Environmental Health Sciences, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Katherine Gurdziel
- Applied Genome Technology Center, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Rebecca Farr
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Bridget B Baker
- Institute of Environmental Health Sciences, School of Medicine, Wayne State University, Detroit, MI, USA; Division of Laboratory Animal Resources, School of Medicine, Wayne State University, Detroit, MI, USA
| | - Daniel Weber
- Children's Environmental Health Sciences Core Center, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Tracie R Baker
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, USA; Institute of Environmental Health Sciences, School of Medicine, Wayne State University, Detroit, MI, USA.
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23
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Bai R, Luo S, Luo L, Zhao J, Zhang S, Li L, Cui Y. Novel flavan-3-ol-glutathione conjugates from the degradation of proanthocyanidins as highly bioactive antioxidants. NEW J CHEM 2020. [DOI: 10.1039/c9nj06207f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis, preparation and antioxidant capacity evaluation of flavan-3-ol-glutathione conjugates.
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Affiliation(s)
- Ruifang Bai
- School of Pharmacy
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
| | - Siqi Luo
- School of Pharmacy
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
| | - Lanxin Luo
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
| | - Jian Zhao
- School of Traditional Chinese Materia Medica
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
| | - Shuting Zhang
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
| | - Lingxi Li
- School of Functional Food and Wine
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
| | - Yan Cui
- School of Pharmacy
- Shenyang Pharmaceutical University
- 110016, Shenyang
- China
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Influence of intranasal exposure of MPTP in multiple doses on liver functions and transition from non-motor to motor symptoms in a rat PD model. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:147-165. [PMID: 31468077 DOI: 10.1007/s00210-019-01715-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/15/2019] [Indexed: 12/14/2022]
Abstract
Besides the effects on the striatum, the impairment of visceral organs including liver functions has been reported in Parkinson's disease (PD) patients. However, it is yet unclear if liver functions are affected in the early stage of the disease before the motor phase has appeared. The aim of our present study was thus to assess the effect of intranasal administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in different doses on striatum and liver functions. Deterioration of non-motor activities appeared on single exposure to MPTP along with rise in striatum oxidative stress and decline in antioxidant levels. Decreases in dopamine, noradrenaline, and GABA and increase in serotonin were detected in striatum. Motor coordination was impaired with a single dose of MPTP, and with repeated MPTP exposure, there was further significant impairment. Locomotor activity was affected from second exposure of MPTP, and the impairment increased with third MPTP exposure. Impairment of liver function through increase in serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels was observed after first MPTP insult, and it worsened with second and third administrations. First administration of MPTP triggered systemic inflammation showing significant increase in inflammatory markers in the liver. Our data shows for the first time that an intranasal route of entry of MPTP affects liver from the non-motor phase of PD itself, occurring concomitantly with the reduction of striatal dopamine. It also suggests that a single dose is not enough to bring about progression of the disease from non-motor to locomotor deficiency, and a repeated dose is needed to establish the motor severity phase in the rat intranasal MPTP model.
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Long noncoding RNA NORAD regulates MPP+-induced Parkinson's disease model cells. J Chem Neuroanat 2019; 101:101668. [PMID: 31421205 DOI: 10.1016/j.jchemneu.2019.101668] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/13/2019] [Accepted: 08/13/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have been demonstrated to play important roles in human diseases. Yet, the functions of lncRNAs in neurodegenerative disorders, such as Parkinson's disease (PD) are poorly understood. In this study, we used human neuroblastoma SH-SY5Y cell line as a cell-basedin vitro PD model, and investigated the role of lncRNA, Non-Coding RNA Activated By DNA Damage (NORAD) in 1-methyl-4-phenylpyridinium (MPP+)-induced PD-like cytotoxicity. METHODS SH-SY5Y cells were culturedin vitro, and treated with MPP + at various concentrations, or of various durations of times to induce PD-like cytotoxic events. qRT-PCR was used to measure MPP+-induced NORAD expression changes. Lentiviral transduction was applied to stably upregulate or downregulate NORAD in SH-SY5Y cells. The effects of NORAD upregulation or downregulation on MPP+-induced cytotoxic events, including dose-dependent and time-dependent cell death, apoptosis, caspase 3/7, reactive Oxygen Species (ROS) and lactate dehydrogenase (LDH) activities, were quantitatively investigated. RESULTS MPP + induced cytotoxicity, and downregulated NORAD in both dose- and time- dependent manners in SH-SY5Y cells. Lentiviral-induced NORAD upregulation was found to protect against MPP+-induced cytotoxicity in SH-SY5Y cells, as it rescued MPP+-induced cellular destruction and apoptosis, as well as decreased MPP+-induced caspase 3/7, ROS and LDH activities. Alternatively, NORAD downregulation was found to significantly deteriorate MPP+-induced cytotoxicity in SH-SY5Y cells. CONCLUSION We presented a novel functional role of lncRNA NORAD in regulating human Parkinson's disease.
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26
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Jellinger KA. Animal models of synucleinopathies and how they could impact future drug discovery and delivery efforts. Expert Opin Drug Discov 2019; 14:969-982. [DOI: 10.1080/17460441.2019.1638908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Luo Y, Li X, Liu T, Cao Y, Zhang J, Yaseen A, Sun F, Zheng W, Jiang Y, Si CL, Hu W. Senkyunolide H protects against MPP +-induced apoptosis via the ROS-mediated mitogen-activated protein kinase pathway in PC12 cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 65:73-81. [PMID: 30579107 DOI: 10.1016/j.etap.2018.12.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/16/2018] [Accepted: 12/11/2018] [Indexed: 06/09/2023]
Abstract
Senkyunolide H (SNH) is a phthalide isolated from the rhizome of Ligusticum chuanxiong Hort. that has been reported to have several pharmacological activities, including anti-atherosclerotic, antiproliferative, and cytoprotective effects. In this study, we investigated the neuroprotective effects and potential mechanisms of SNH against 1-methyl-4-phenylpyridinium (MPP+)-induced oxidative stress. We demonstrated that SNH pretreatment significantly attenuated MPP+-induced neurotoxicity and apoptosis in PC12 cells. In addition, SNH attenuated the effect of MPP+ on the expression of the pro-apoptotic factors Bax and caspase-3. Meanwhile, SNH prevented oxidative stress by reducing reactive oxygen species generation, mitochondrial membrane potential loss, cytochrome C release, and malondialdehyde levels while increasing antioxidant enzyme activity (e.g., superoxide dismutase, catalase, and glutathione peroxidase). In addition, SNH inhibited nuclear accumulation of nuclear factor-κB and c-Jun N-terminal kinase and phosphorylation p38 mitogen-activated protein kinases (MAPKs). Overall, this investigation provides novel evidence that SNH exerts neuroprotective effects via the ROS-mediated MAPK pathway and represents a potential preventive or therapeutic agent for neuronal disorders.
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Affiliation(s)
- Yanyan Luo
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457, China; Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
| | - Xueqin Li
- Department of Gerontology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, 1 Huanghe West Road, Huaian, 223300, China
| | - Tingwu Liu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
| | - Yufeng Cao
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
| | - Jianmei Zhang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
| | - Aftab Yaseen
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Fengting Sun
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
| | - Wancai Zheng
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
| | - Yunyao Jiang
- Beijing Key Laboratory of TCM Pharmacology, Institute of Basic Medical Sciences, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China; Jing-Jin-Ji Joint Innovation Pharmaceutical (Beijing) Co., Ltd, Beijing, 100083, China.
| | - Chuan-Ling Si
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457, China.
| | - Weicheng Hu
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457, China; Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.
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