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Nanda SS, Kim D, Yang H, An SSA, Yi DK. Synergistic Effect of SiO 2 and Fe 3O 4 Nanoparticles in Autophagy Modulation. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1033. [PMID: 38921909 PMCID: PMC11207018 DOI: 10.3390/nano14121033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024]
Abstract
Rapid advancements in nanotechnology have expanded its applications and synergistic impact on modern nanosystems. The comprehensive assessment of nanomaterials' safety for human exposure has become crucial and heightened. In addition to the characterization of cell proliferation and apoptosis, probing the implication of autophagy is vital for understanding the ramification of nanomaterials. Hence, HEK-293 kidney cells were employed to understand the changes in induction and perturbation of autophagy in cells by iron oxide (Fe3O4) and silica (SiO2) nanoparticles. Interestingly, Fe3O4 worked as a potent modulator of the autophagy process through its catalytic performance, which can develop better than that of SiO2 nanoparticles mechanism, stressing their therapeutic implication in the understanding of cell behaviors. The quantification of reactive oxygen species (ROS) was measured along with the process of autophagy during cell growth. This modulated autophagy will help in cell fate determination in complementary therapy for disease treatment, provide a clinical strategy for future study.
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Affiliation(s)
| | - Danyeong Kim
- Department of Bionanotechnology, Gachon Medical Research Institute, Gachon University, Seongnam 13120, Republic of Korea; (D.K.); (H.Y.)
| | - Hyewon Yang
- Department of Bionanotechnology, Gachon Medical Research Institute, Gachon University, Seongnam 13120, Republic of Korea; (D.K.); (H.Y.)
| | - Seong Soo A. An
- Department of Bionanotechnology, Gachon Medical Research Institute, Gachon University, Seongnam 13120, Republic of Korea; (D.K.); (H.Y.)
| | - Dong Kee Yi
- Department of Chemistry, Myongji University, Yongin 17058, Republic of Korea;
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2
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Tang J, Li Y, Liu X, Yu G, Zheng F, Guo Z, Zhang Y, Shao W, Wu S, Li H. Cobalt induces neurodegenerative damages through impairing autophagic flux by activating hypoxia-inducible factor-1α triggered ROS overproduction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159432. [PMID: 36243078 DOI: 10.1016/j.scitotenv.2022.159432] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/25/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Cobalt is an environmental toxicant, and excessive bodily exposure can damage the nervous system. Particularly, our previous study reported that low-dose cobalt (significantly less than the safety threshold) is still able to induce neurodegenerative changes. However, the underlying molecular mechanism is still insufficient revealed. Herein, we further investigate the molecular mechanism between cobalt-induced neurodegeneration and autophagy, as well as explore the interplay between hypoxia-inducible factor-1α (HIF-1α), reactive oxygen species (ROS), and autophagy in cobalt-exposed mice and human neuroglioma cells. We first reveal cobalt as an environmental toxicant to severely induce β amyloid (Aβ) deposition, tau hyperphosphorylation, and dysregulated autophagy in the hippocampus and cortex of mice. In particular, we further identify that cobalt-induced neurotoxicity is triggered by the impairment of autophagic flux in vitro experiments. Moreover, the mechanistic study reveals that cobalt exposure extremely activates HIF-1α expression to facilitate the overproduction of ROS. Then, elevated ROS can target the amino-threonine kinase (AKT)-mammalian target of rapamycin (mTOR)-Unc-51 like autophagy activating kinase 1 (ULK1) signaling pathway to participate in cobalt-induced impairment of autophagic flux. Subsequently, defected autophagy further exacerbates cobalt-induced neurotoxicity for its unable to eliminate the deposition of pathological protein. Therefore, our data provide scientific evidence for cobalt safety evaluation and risk assessment and propose a breakthrough for understanding the regulatory relationship between HIF-1α, ROS, and autophagy in cobalt-induced neurodegeneration.
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Affiliation(s)
- Jianping Tang
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Yanjun Li
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Xu Liu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Guangxia Yu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Fuli Zheng
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Zhenkun Guo
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Yating Zhang
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Wenya Shao
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - Siying Wu
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou 350122, China.
| | - Huangyuan Li
- Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China.
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3
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Xie L, Yuan Y, Xu S, Lu S, Gu J, Wang Y, Wang Y, Zhang X, Chen S, Li J, Lu J, Sun H, Hu R, Piao H, Wang W, Wang C, Wang J, Li N, White MF, Han L, Jia W, Miao J, Liu J. Downregulation of hepatic ceruloplasmin ameliorates NAFLD via SCO1-AMPK-LKB1 complex. Cell Rep 2022; 41:111498. [PMID: 36261001 PMCID: PMC10153649 DOI: 10.1016/j.celrep.2022.111498] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 06/29/2022] [Accepted: 09/21/2022] [Indexed: 11/17/2022] Open
Abstract
Copper deficiency has emerged to be associated with various lipid metabolism diseases, including non-alcoholic fatty liver disease (NAFLD). However, the mechanisms that dictate the association between copper deficiency and metabolic diseases remain obscure. Here, we reveal that copper restoration caused by hepatic ceruloplasmin (Cp) ablation enhances lipid catabolism by promoting the assembly of copper-load SCO1-LKB1-AMPK complex. Overnutrition-mediated Cp elevation results in hepatic copper loss, whereas Cp ablation restores copper content to the normal level without eliciting detectable hepatotoxicity and ameliorates NAFLD in mice. Mechanistically, SCO1 constitutively interacts with LKB1 even in the absence of copper, and copper-loaded SCO1 directly tethers LKB1 to AMPK, thereby activating AMPK and consequently promoting mitochondrial biogenesis and fatty acid oxidation. Therefore, this study reveals a mechanism by which copper, as a signaling molecule, improves hepatic lipid catabolism, and it indicates that targeting copper-SCO1-AMPK signaling pathway ameliorates NAFLD development by modulating AMPK activity.
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Affiliation(s)
- Liping Xie
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Yanmei Yuan
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Simiao Xu
- Division of Endocrinology, Boston Children's Hospital, Boston, MA 02215, USA; Division of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Branch of National Clinical Research Center for Metabolic Disease, Wuhan, Hubei 430030, China
| | - Sijia Lu
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Jinyang Gu
- Department of Transplantation, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200042, China
| | - Yanping Wang
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Yibing Wang
- School of Kinesiology, Shanghai University of Sports, Shanghai 200438, China
| | - Xianjing Zhang
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Suzhen Chen
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Jian Li
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Junxi Lu
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Honglin Sun
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Ruixiang Hu
- Division of Endocrinology, Boston Children's Hospital, Boston, MA 02215, USA; Department of Gastrointestinal Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Hailong Piao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Wen Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Cunchuan Wang
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Jing Wang
- State Key Laboratory of Natural and Biomimetic Drugs Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Na Li
- State Key Laboratory of Natural and Biomimetic Drugs Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Morris F White
- Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Liu Han
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Weiping Jia
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Ji Miao
- Division of Endocrinology, Boston Children's Hospital, Boston, MA 02215, USA; Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA.
| | - Junli Liu
- Shanghai Diabetes Institute, Department of Endocrinology and Metabolism, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China.
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Caioni G, Cimini A, Benedetti E. Food Contamination: An Unexplored Possible Link between Dietary Habits and Parkinson’s Disease. Nutrients 2022; 14:nu14071467. [PMID: 35406080 PMCID: PMC9003245 DOI: 10.3390/nu14071467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 12/10/2022] Open
Abstract
Importance of a healthy lifestyle in maintaining the population’s well-being and health, especially in terms of balanced nutrition, is well known. Food choice of and dieting habits could impact disease management, which is especially true for Parkinson’s disease (PD). However, nowadays, it is not that simple to maintain a balance in nutrition, and the idea of a healthy diet tends to fade as the consequence of a western lifestyle. This should not only be dealt with in the context of food choice, but also from an environmental point of view. What we put into our bodies is strictly related to the quality of ecosystems we live in. For these reasons, attention should be directed to all the pollutants, which in many cases, we unknowingly ingest. It will be necessary to explore the interaction between food and environment, since human activity also influences the raw materials destined for consumption. This awareness can be achieved by means of an innovative scientific approach, which involves the use of new models, in order to overcome the traditional scientific investigations included in the study of Parkinson’s disease.
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Affiliation(s)
- Giulia Caioni
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.C.)
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.C.)
- Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA 19122, USA
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy; (G.C.); (A.C.)
- Correspondence: ; Tel.: +39-086-243-3267
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5
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Nisa FY, Rahman MA, Hossen MA, Khan MF, Khan MAN, Majid M, Sultana F, Haque MA. Role of neurotoxicants in the pathogenesis of Alzheimer's disease: a mechanistic insight. Ann Med 2021; 53:1476-1501. [PMID: 34433343 PMCID: PMC8405119 DOI: 10.1080/07853890.2021.1966088] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/04/2021] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD) is the most conspicuous chronic neurodegenerative syndrome, which has become a significant challenge for the global healthcare system. Multiple studies have corroborated a clear association of neurotoxicants with AD pathogenicity, such as Amyloid beta (Aβ) proteins and neurofibrillary tangles (NFTs), signalling pathway modifications, cellular stress, cognitive dysfunctions, neuronal apoptosis, neuroinflammation, epigenetic modification, and so on. This review, therefore, aimed to address several essential mechanisms and signalling cascades, including Wnt (wingless and int.) signalling pathway, autophagy, mammalian target of rapamycin (mTOR), protein kinase C (PKC) signalling cascades, cellular redox status, energy metabolism, glutamatergic neurotransmissions, immune cell stimulations (e.g. microglia, astrocytes) as well as an amyloid precursor protein (APP), presenilin-1 (PSEN1), presenilin-2 (PSEN2) and other AD-related gene expressions that have been pretentious and modulated by the various neurotoxicants. This review concluded that neurotoxicants play a momentous role in developing AD through modulating various signalling cascades. Nevertheless, comprehension of this risk agent-induced neurotoxicity is far too little. More in-depth epidemiological and systematic investigations are needed to understand the potential mechanisms better to address these neurotoxicants and improve approaches to their risk exposure that aid in AD pathogenesis.Key messagesInevitable cascade mechanisms of how Alzheimer's Disease-related (AD-related) gene expressions are modulated by neurotoxicants have been discussed.Involvement of the neurotoxicants-induced pathways caused an extended risk of AD is explicited.Integration of cell culture, animals and population-based analysis on the clinical severity of AD is addressed.
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Affiliation(s)
- Fatema Yasmin Nisa
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Md. Atiar Rahman
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Md. Amjad Hossen
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Mohammad Forhad Khan
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
| | - Md. Asif Nadim Khan
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Mumtahina Majid
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Farjana Sultana
- Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Chittagong, Chittagong, Bangladesh
| | - Md. Areeful Haque
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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6
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Zhang S, Zhang C, Shao X, Guan R, Hu Y, Zhang K, Liu W, Hong M, Yue Q. Dual-emission ratio fluorescence for selective and sensitive detection of ferric ions and ascorbic acid based on one-pot synthesis of glutathione protected gold nanoclusters. RSC Adv 2021; 11:17283-17290. [PMID: 35479669 PMCID: PMC9032689 DOI: 10.1039/d0ra10281d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 05/04/2021] [Indexed: 01/22/2023] Open
Abstract
A fluorometric method was proposed for the determination of Fe3+ and ascorbic acid (AA) based on blue and red dual fluorescence emissions of glutathione (GSH) stabilized-gold nanoclusters (AuNCs). AuNCs were synthesized from GSH and tetrachloroauric acid. The fluorescence peaks of AuNCs were at 425 nm and 585 nm, respectively. In the presence of Fe3+, the fluorescence peak at 425 nm can be enhanced and that at 585 nm can be quenched. There is a good linear relationship between the fluorescence intensity ratio for the 425 and 585 nm peaks (F 425/F 585) and the concentration of Fe3+ in the range of 0.75-125 μM. However, when AA was added to the AuNCs-Fe3+ system, the value of F 425/F 585 decreased consistently with the concentration of AA in the range of 0.25-35 μM. The limit of detection for Fe3+ and AA was 227 and 75.8 nM, respectively. The interaction between AuNCs and Fe3+ can induce the ligand-metal charge transfer (LMCT) effect leading to the fluorescence increment at 425 nm, while AA can reduce Fe3+ to Fe2+. The production of Fe2+ can not enhance or quench the fluorescence of AuNCs. By comparison with previous literature, the AuNCs prepared here show two fluorescence peaks without additional fluorescence labels. Furthermore, the method was successfully applied in the determination of Fe3+ and AA in some real samples, such as water, human serum and tablets.
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Affiliation(s)
- Shuai Zhang
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Cong Zhang
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Xiaodong Shao
- Nanobioengineering/Bioelectronics Laboratory, Department of Biomedical Engineering, Florida International University Miami FL 33174 USA
| | - Rentian Guan
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Yingying Hu
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Keying Zhang
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Wenjing Liu
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Min Hong
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
| | - Qiaoli Yue
- Shandong Provincial Key Laboratory of Chrmical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University China
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Fang Y, Xing C, Wang X, Cao H, Zhang C, Guo X, Zhuang Y, Hu R, Hu G, Yang F. Activation of the ROS/HO-1/NQO1 signaling pathway contributes to the copper-induced oxidative stress and autophagy in duck renal tubular epithelial cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143753. [PMID: 33316526 DOI: 10.1016/j.scitotenv.2020.143753] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/28/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
The aim of this study was to investigate the crosstalk between oxidative stress and autophagy through the ROS/HO-1/NQO1 pathway caused by copper (Cu). Duck renal tubular epithelial cells were treated in Cu sulfate (CuSO4) (0, 100 and 200 μM) for 12 h, and in the combination of CuSO4 (200 μM) and reactive oxygen species (ROS) scavenger (butyl hydroxyanisole, BHA, 100 μM), or HO-1 inhibitor (zinc protoporphyrin, ZnPP, 10 μM) for 12 h. Results revealed that Cu could significantly elevate the levels of intracellular ROS, superoxide dismutase, hydrogen peroxide, malondialdehyde, glutathione, simultaneously reduce catalase and glutathione peroxidase levels, and upregulate HO-1, SOD-1, CAT, NQO1, GCLM mRNA levels and HO-1, SOD-1 protein levels. Additionally, Cu could observably increase the number of autophagosomes, acidic vesicle organelles (AVOs) and LC3 puncta; upregulate mRNA levels of mTOR, Beclin-1, ATG7, ATG5, ATG3, LC3II and protein levels of Beclin-1, LC3II/LC3I, downregulate LC3I mRNA level. Both treatments with BHA and ZnPP could significantly alleviate the changes of antioxidant indexes levels and ROS accumulation, reduce the increase of the number of autophagosomes, AVOs and LC3 puncta, and mitigate the above changed oxidative stress and autophagy related mRNA and protein levels induced by Cu. In summary, our findings indicated that excessive Cu could induce oxidative stress and autophagy by activating the ROS/HO-1/NQO1 pathway, and inhibition of HO-1 might attenuate Cu-induced oxidative stress and autophagy in duck renal tubular epithelial cells.
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Affiliation(s)
- Yukun Fang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Chenghong Xing
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Xiaoyu Wang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Huabin Cao
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Caiying Zhang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Xiaoquan Guo
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Yu Zhuang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - RuiMing Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Guoliang Hu
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China
| | - Fan Yang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Economic and Technological Development District, Nanchang 330045, Jiangxi, PR China.
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8
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Weng N, Jiang H, Wang WX. Novel Insights into the Role of Copper in Critical Life Stages of Oysters Revealed by High-Resolution NanoSIMS Imaging. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:14724-14733. [PMID: 31742394 DOI: 10.1021/acs.est.9b05877] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Copper (Cu) is a key trace element for many biological processes, but there is little available information regarding its requirements and functions in critical life stages of marine bivalves, during which dramatic morphological and physiological changes occur. In this study, the ontogeny pattern of Cu accumulation across the life history of oysters was explored for the first time and the distributions of Cu in oysters at critical life stages (pediveliger and early settled spat) were in situ mapped by nanoscale secondary ion mass spectrometry (NanoSIMS) with high lateral resolution. We first demonstrated that the late pelagic stage to early settled stage was the critical stage requiring Cu during oyster development. NanoSIMS imaging revealed a significant elevation of intercellular Cu levels along with mitochondrial calcium overload and obvious structural degradation of mitochondria in velar cells at the pediveliger stage, implying the possible role of Cu in cell apoptosis of the velum during larval metamorphosis. Furthermore, an obvious enrichment of Cu together with calcium was observed in the nucleus and mitochondria of ciliated cells of gill tissue at the early settled stage. Their accumulation in the gill cells was significantly higher than that in the juveniles, indicating the potential role of Cu in sustaining the fast growth of the gill filament and the concomitant acceleration of energy metabolism during early benthic development. Our findings offer new insights into the understanding of the interactions between trace metals and marine bivalves.
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Affiliation(s)
- Nanyan Weng
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources , HKUST Shenzhen Research Institute , Shenzhen 518057 , China
- Department of Ocean Science and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) , The Hong Kong University of Science and Technology (HKUST) , Clearwater Bay, Kowloon 999077 , Hong Kong
| | | | - Wen-Xiong Wang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources , HKUST Shenzhen Research Institute , Shenzhen 518057 , China
- Department of Ocean Science and Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) , The Hong Kong University of Science and Technology (HKUST) , Clearwater Bay, Kowloon 999077 , Hong Kong
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9
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Kalita J, Kumar V, Misra UK, Bora HK. Movement Disorder in Copper Toxicity Rat Model: Role of Inflammation and Apoptosis in the Corpus Striatum. Neurotox Res 2019; 37:904-912. [PMID: 31811585 DOI: 10.1007/s12640-019-00140-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/31/2019] [Accepted: 11/08/2019] [Indexed: 12/14/2022]
Abstract
The pattern of copper (Cu) toxicity in humans is similar to Wilson disease, and they have movement disorders and frequent involvement of corpus striatum. The extent of cell deaths in corpus striatum may be the basis of movement disorder and may be confirmed in the experimental study. To evaluate the extent of apoptosis and glial activation in corpus striatum following Cu toxicity in a rat model, and correlate these with spontaneous locomotor activity (SLA), six male Wistar rats were fed normal saline (group I) and another six were fed copper sulfate 100 mg/kgBWt/daily orally (group II). At 1 month, neurobehavioral studies including SLA, rotarod, and grip strength were done. Corpus striatum was removed and was subjected to glial fibrillary acidic protein (GFAP) and caspase-3 immunohistochemistry. The concentration of tissue Cu, total antioxidant capacity (TAC), glutathione (GSH), malondialdehyde (MDA), and glutamate were measured. Group II rats had higher expression of caspase-3 (Mean ± SEM 32.67 ± 1.46 vs 4.47 ± 1.08; p < 0.01) and GFAP (41.81 ± 1.68 vs 31.82 ± 1.27; p < 0.01) compared with group I. Neurobehavioral studies revealed reduced total distance traveled, time moving, the number of rearing, latency to fall on the rotarod, grip strength, and increased resting time compared with group I. The expression of GFAP and caspase-3 correlated with SLA parameters, tissue Cu, GSH, MDA, TAC, and glutamate levels. The impaired locomotor activity in Cu toxicity rats is due to apoptotic and inflammatory-mediated cell death in the corpus striatum because of Cu-mediated oxidative stress and excitotoxicity.
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Affiliation(s)
- Jayantee Kalita
- Department of Neurology, Sanjay Gandhi Post Graduate Medical Sciences, Raebareily Road, Lucknow, 226014, India.
| | - Vijay Kumar
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Usha K Misra
- Department of Neurology, Sanjay Gandhi Post Graduate Medical Sciences, Raebareily Road, Lucknow, 226014, India
| | - Himangsu K Bora
- National Laboratory Animal Centre, CSIR-Central Drug Research Institute, Lucknow, India
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10
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Ma Y, Yu H, Liu W, Qin Y, Xing R, Li P. Integrated proteomics and metabolomics analysis reveals the antifungal mechanism of the C-coordinated O-carboxymethyl chitosan Cu(II) complex. Int J Biol Macromol 2019; 155:1491-1509. [PMID: 31751736 DOI: 10.1016/j.ijbiomac.2019.11.127] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/06/2019] [Accepted: 11/14/2019] [Indexed: 12/31/2022]
Abstract
With wide application in agriculture, copper fungicides have undergone three stages of development: inorganic copper, synthetic organic copper, and natural organic copper. Using chitin/chitosan (CS) as a substrate, the natural organic copper fungicide C-coordinated O-carboxymethyl chitosan Cu(II) complex (O-CSLn-Cu) was developed in the laboratory. Taking Phytophthora capsici Leonian as an example, we explored the antifungal mechanism of O-CSLn-Cu by combining tandem mass tag (TMT)-based proteomics with non-targeted liquid chromatography-mass spectrometry (LC-MS)-based metabolomics. A total of 1172 differentially expressed proteins were identified by proteomics analysis. According to the metabolomics analysis, 93 differentially metabolites were identified. Acetyl-CoA-related and membrane localized proteins showed significant differences in the proteomics analysis. Most of the differential expressed metabolites were distributed in the cytoplasm, followed by mitochondria. The integrated analysis revealed that O-CSLn-Cu could induce the "Warburg effect", with increased glycolysis in the cytoplasm and decreased metabolism in the mitochondria. Therefore, P. capsici Leonian had to compensate for ATP loss in the TCA cycle by increasing the glycolysis rate. However, this metabolic shift could not prevent the death of P. capsici Leonian. To verify this hypothesis, a series of biological experiments, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), and enzyme activity measurements were carried out. The results suggest that O-CSLn-Cu causes mitochondrial injury, which consequently leads to excessive ROS levels and insufficient ATP levels, thereby killing P. capsici Leonian.
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Affiliation(s)
- Yuzhen Ma
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huahua Yu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China.
| | - Weixiang Liu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Yukun Qin
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Ronge Xing
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
| | - Pengcheng Li
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China.
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11
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Das J, Verma D, Gustafsson M, Lerm M. Identification of DNA methylation patterns predisposing for an efficient response to BCG vaccination in healthy BCG-naïve subjects. Epigenetics 2019; 14:589-601. [PMID: 31010371 PMCID: PMC6557603 DOI: 10.1080/15592294.2019.1603963] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/19/2019] [Accepted: 04/02/2019] [Indexed: 12/17/2022] Open
Abstract
The protection against tuberculosis induced by the Bacille Calmette Guérin (BCG) vaccine is unpredictable. In our previous study, altered DNA methylation pattern in peripheral blood mononuclear cells (PBMCs) in response to BCG was observed in a subgroup of individuals, whose macrophages killed mycobacteria effectively ('responders'). These macrophages also showed production of Interleukin-1β (IL-1β) in response to mycobacterial stimuli before vaccination. Here, we hypothesized that the propensity to respond to the BCG vaccine is reflected in the DNA methylome. We mapped the differentially methylated genes (DMGs) in PBMCs isolated from responders/non-responders at the time point before vaccination aiming to identify possible predictors of BCG responsiveness. We identified 43 DMGs and subsequent bioinformatic analyses showed that these were enriched for actin-modulating pathways, predicting differences in phagocytosis. This could be validated by experiments showing that phagocytosis of mycobacteria, which is an event preceding mycobacteria-induced IL-1β production, was strongly correlated with the DMG pattern.
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Affiliation(s)
- Jyotirmoy Das
- Department of Clinical and Experimental Medicine (IKE), Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Deepti Verma
- Department of Clinical and Experimental Medicine (IKE), Division of Cell Biology (CELLB), Linköping University, Linköping, Sweden
| | - Mika Gustafsson
- Department of Physics, Chemistry and Biology (IFM) Bioinformatics (BION), Linköping University, Linköping, Sweden
| | - Maria Lerm
- Department of Clinical and Experimental Medicine (IKE), Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
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12
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Radovanović V, Vlainić J, Hanžić N, Ukić P, Oršolić N, Baranović G, Jazvinšćak Jembrek M. Neurotoxic Effect of Ethanolic Extract of Propolis in the Presence of Copper Ions is Mediated through Enhanced Production of ROS and Stimulation of caspase-3/7 Activity. Toxins (Basel) 2019; 11:toxins11050273. [PMID: 31096598 PMCID: PMC6563224 DOI: 10.3390/toxins11050273] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/26/2019] [Accepted: 05/13/2019] [Indexed: 12/20/2022] Open
Abstract
Elevated amounts of copper are considered to be contributing factor in the progression of neurodegenerative diseases as they promote oxidative stress conditions. The aim of our study was to examine the effects of ethanolic extract of propolis (EEP) against copper-induced neuronal damage. In cultured P19 neuronal cells, EEP exacerbated copper-provoked neuronal cell death by increasing the generation of reactive oxygen species (ROS) and through the activation of caspase-3/7 activity. EEP augmented copper-induced up-regulation of p53 and Bax mRNA expressions. Neurotoxic effects of EEP were accompanied by a strong induction of glyceraldehyde 3-phosphate dehydrogenase (GAPDH) expression and decrease in the expression of c-fos mRNA. SB203580, an inhibitor of p38 mitogen-activated protein kinase (MAPK) prevented detrimental effects of EEP, whereas SP600125, an inhibitor of c-Jun N-terminal kinase (JNK), exacerbated EEP-induced neuronal cell death. Quercetin, a polyphenolic nutraceutical, which is usually present in propolis, was also able to exacerbate copper-induced neuronal death. Our data indicates a pro-oxidative and apoptotic mode of EEP action in the presence of excess copper, wherein ROS/p53/p38 interactions play an important role in death cascades. Our study also pointed out that detailed pharmacological and toxicological studies must be carried out for propolis and other dietary supplements in order to fully recognize the potential adverse effects in specific conditions.
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Affiliation(s)
- Vedrana Radovanović
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
| | - Josipa Vlainić
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
| | - Nikolina Hanžić
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
| | - Petra Ukić
- Department of Animal Physiology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia.
| | - Nada Oršolić
- Department of Animal Physiology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia.
| | - Goran Baranović
- Division of Organic Chemistry and Biochemistry, Rudjer Boskovic Institute, 10000 Zagreb, Croatia.
| | - Maja Jazvinšćak Jembrek
- Division of Molecular Medicine, Rudjer Boskovic Institute, 100000 Zagreb, Croatia.
- Department of Psychology, Catholic University of Croatia, Ilica 242, 10000 Zagreb, Croatia.
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13
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Cordani M, Somoza Á. Targeting autophagy using metallic nanoparticles: a promising strategy for cancer treatment. Cell Mol Life Sci 2019; 76:1215-1242. [PMID: 30483817 PMCID: PMC6420884 DOI: 10.1007/s00018-018-2973-y] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 11/20/2018] [Indexed: 02/08/2023]
Abstract
Despite the extensive genetic and phenotypic variations present in the different tumors, they frequently share common metabolic alterations, such as autophagy. Autophagy is a self-degradative process in response to stresses by which damaged macromolecules and organelles are targeted by autophagic vesicles to lysosomes and then eliminated. It is known that autophagy dysfunctions can promote tumorigenesis and cancer development, but, interestingly, its overstimulation by cytotoxic drugs may also induce cell death and chemosensitivity. For this reason, the possibility to modulate autophagy may represent a valid therapeutic approach to treat different types of cancers and a variety of clinical trials, using autophagy modulators, are currently employed. On the other hand, recent progress in nanotechnology offers plenty of tools to fight cancer with innovative and efficient therapeutic agents by overcoming obstacles usually encountered with traditional drugs. Interestingly, nanomaterials can modulate autophagy and have been exploited as therapeutic agents against cancer. In this article, we summarize the most recent advances in the application of metallic nanostructures as potent modulators of autophagy process through multiple mechanisms, stressing their therapeutic implications in cancer diseases. For this reason, we believe that autophagy modulation with nanoparticle-based strategies would acquire clinical relevance in the near future, as a complementary therapy for the treatment of cancers and other diseases.
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Affiliation(s)
- Marco Cordani
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), CNB-CSIC-IMDEA Nanociencia Associated Unit "Unidad de Nanobiotecnología", Madrid, Spain.
- Institute for Advanced Studies in Nanoscience (IMDEA Nanociencia), Faraday 9, Office 129, Lab 137 Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
| | - Álvaro Somoza
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia), CNB-CSIC-IMDEA Nanociencia Associated Unit "Unidad de Nanobiotecnología", Madrid, Spain.
- Institute for Advanced Studies in Nanoscience (IMDEA Nanociencia), Faraday 9, Office 129, Lab 137 Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain.
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14
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Ball N, Teo WP, Chandra S, Chapman J. Parkinson's Disease and the Environment. Front Neurol 2019; 10:218. [PMID: 30941085 PMCID: PMC6433887 DOI: 10.3389/fneur.2019.00218] [Citation(s) in RCA: 227] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/20/2019] [Indexed: 12/13/2022] Open
Abstract
Parkinson's disease (PD) is a heterogeneous neurodegenerative disorder that affects an estimated 10 million sufferers worldwide. The two forms of PD include familial and sporadic, and while the etiology of PD is still largely unknown, the condition is likely to be multifactorial with genetic and environmental factors contributing to disease genesis. Diagnosis of the condition is attained through the observation of cardinal clinical manifestations including resting tremor, muscle rigidity, slowness or loss of movement, and postural instability. Unfortunately, by the time these features become apparent extensive neurological damage has already occurred. A cure for PD has not been identified and the current therapy options are pharmaceutical- and/or surgical-based interventions to treat condition symptoms. There is no specific test for PD and most diagnoses are confirmed by a combination of clinical symptoms and positive responses to dopaminergic drug therapies. The prevalence and incidence of PD vary worldwide influenced by several factors such as age, gender, ethnicity, genetic susceptibilities, and environmental exposures. Here, we will present environmental factors implicated in sporadic PD onset. By understanding the mechanisms in which environmental factors interact with, and affect the brain we can stride toward finding the underlying cause(s) of PD.
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Affiliation(s)
- Nicole Ball
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - Wei-Peng Teo
- School of Exercise and Nutrition Sciences, Institute for Physical Activity and Nutrition, Deakin University, Melbourne, VIC, Australia.,Physical Education and Sports Science Academic Group, National Institute of Education, Nanyang Technological University, Singapore, Singapore
| | - Shaneel Chandra
- School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
| | - James Chapman
- School of Science, RMIT University, Melbourne, VIC, Australia
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15
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Devi JSA, Aparna RS, Aswathy B, Nebu J, Aswathy AO, George S. Understanding the Citric Acid-Urea Co-Directed Microwave Assisted Synthesis and Ferric Ion Modulation of Fluorescent Nitrogen Doped Carbon Dots: A Turn On Assay for Ascorbic Acid. ChemistrySelect 2019. [DOI: 10.1002/slct.201803726] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- J. S. Anjali Devi
- Department of Chemistry; School of Physical and Mathematical sciences; University of Kerala; Kariavattom campus; Thiruvananthapuram- 695581, Kerala India
| | - R. S. Aparna
- Department of Chemistry; School of Physical and Mathematical sciences; University of Kerala; Kariavattom campus; Thiruvananthapuram- 695581, Kerala India
| | - B. Aswathy
- Department of Chemistry; School of Physical and Mathematical sciences; University of Kerala; Kariavattom campus; Thiruvananthapuram- 695581, Kerala India
| | - John Nebu
- Department of Chemistry; School of Physical and Mathematical sciences; University of Kerala; Kariavattom campus; Thiruvananthapuram- 695581, Kerala India
| | - A. O. Aswathy
- Department of Chemistry; School of Physical and Mathematical sciences; University of Kerala; Kariavattom campus; Thiruvananthapuram- 695581, Kerala India
| | - Sony George
- Department of Chemistry; School of Physical and Mathematical sciences; University of Kerala; Kariavattom campus; Thiruvananthapuram- 695581, Kerala India
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16
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Zhang Y, Sha R, Zhang L, Zhang W, Jin P, Xu W, Ding J, Lin J, Qian J, Yao G, Zhang R, Luo F, Zeng J, Cao J, Wen LP. Harnessing copper-palladium alloy tetrapod nanoparticle-induced pro-survival autophagy for optimized photothermal therapy of drug-resistant cancer. Nat Commun 2018; 9:4236. [PMID: 30315154 PMCID: PMC6185906 DOI: 10.1038/s41467-018-06529-y] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 09/11/2018] [Indexed: 01/09/2023] Open
Abstract
Chemo-PTT, which combines chemotherapy with photothermal therapy, offers a viable approach for the complete tumor eradication but would likely fail in drug-resistant situations if conventional chemotherapeutic agents are used. Here we show that a type of copper (Cu)-palladium (Pd) alloy tetrapod nanoparticles (TNP-1) presents an ideal solution to the chemo-PTT challenges. TNP-1 exhibit superior near-infrared photothermal conversion efficiency, thanks to their special sharp-tip structure, and induce pro-survival autophagy in a shape- and composition-dependent manner. Inhibition of autophagy with 3-methyl adenine or chloroquine has a remarkable synergistic effect on TNP-1-mediated PTT in triple-negative (4T1), drug-resistant (MCF7/MDR) and patient-derived breast cancer models, achieving a level of efficacy unattainable with TNP-2, the identically-shaped CuPd nanoparticles that have a higher photothermal conversion efficiency but no autophagy-inducing activity. Our results provide a proof-of-concept for a chemo-PTT strategy, which utilizes autophagy inhibitors instead of traditional chemotherapeutic agents and is particularly useful for eradicating drug-resistant cancer. “Conventional chemotherapy-photothermal therapy combination has limited efficacy in drug resistant cancers. Here they develop Copper-palladium tetrapod nanoparticles to overcome these challenges and show them to work in synergy with autophagy inhibitors to treat drug resistant cancers”
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Affiliation(s)
- Yunjiao Zhang
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China.,Nanobio Laboratory, Institute of Life Sciences, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Rui Sha
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, P. R. China
| | - Lan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Center of Advanced Nanocatalysis (CAN-USTC) and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wenbin Zhang
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Peipei Jin
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China.,Nanobio Laboratory, Institute of Life Sciences, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Weiguo Xu
- Key Laboratory of Polymer Ecomaterials, Changchun Institure of Applied Chemistry, Chinese Academy of Sciences, Jilin, 130022, Changchun, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institure of Applied Chemistry, Chinese Academy of Sciences, Jilin, 130022, Changchun, P. R. China.,Breast Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Jun Lin
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, P. R. China
| | - Jing Qian
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China.,Nanobio Laboratory, Institute of Life Sciences, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Guangyu Yao
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, P. R. China
| | - Rui Zhang
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - Fanchen Luo
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, P. R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale, Center of Advanced Nanocatalysis (CAN-USTC) and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
| | - Jie Cao
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China.
| | - Long-Ping Wen
- Department of Colorectal & Anal Surgery, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China. .,Nanobio Laboratory, Institute of Life Sciences, South China University of Technology, Guangzhou, 510006, Guangdong, China.
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17
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Liu H, Li N, Zhang H, Zhang F, Su X. A simple and convenient fluorescent strategy for the highly sensitive detection of dopamine and ascorbic acid based on graphene quantum dots. Talanta 2018; 189:190-195. [PMID: 30086905 DOI: 10.1016/j.talanta.2018.05.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/23/2018] [Accepted: 05/02/2018] [Indexed: 01/27/2023]
Abstract
In this paper, a simple and convenient fluorescent "turn off-on" strategy for the highly sensitive detection of dopamine (DA) and ascorbic acid (AA) based on graphene quantum dots (GQDs) was developed. DA and GQDs can form the DA-GQDs complex due to the electrostatic interaction and hydrogen bonding. The interaction between Cu2+ and the catechol moiety of DA-GQDs complex could lead to strong fluorescence quenching of GQDs. When AA is introduced into the system, AA can reduce Cu2+ to Cu+, disturbing the interaction between Cu2+ and DA-GQDs complex and resulting in the fluorescence recovery of GQDs. Thus, a sensitive and convenient sensor for the detection of DA and AA was developed. Under the optimized experimental conditions, the fluorescence intensity was linearly correlated with the concentration of DA and AA in the range of 0.5-120 µmol L-1 and 0.05-6 µmol L-1 with a detection limit of 0.16 µmol L-1 and 0.021 µmol L-1, respectively. Meanwhile, the proposed method has potential applications on the detection of DA and AA in human urine and serum samples.
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Affiliation(s)
- Hua Liu
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Ning Li
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China; Department of Respiratory, China-Japan Union Hospital of Jilin University, Changchun 130031, PR China
| | - Huiqi Zhang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Feng Zhang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Xingguang Su
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
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18
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Pellacani C, Costa LG. Role of autophagy in environmental neurotoxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:791-805. [PMID: 29353798 DOI: 10.1016/j.envpol.2017.12.102] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 12/08/2017] [Accepted: 12/25/2017] [Indexed: 06/07/2023]
Abstract
Human exposure to neurotoxic pollutants (e.g. metals, pesticides and other chemicals) is recognized as a key risk factor in the pathogenesis of neurodegenerative disorders. Emerging evidence indicates that an alteration in autophagic pathways may be correlated with the onset of the neurotoxicity resulting from chronic exposure to these pollutants. In fact, autophagy is a natural process that permits to preserving cell homeostasis, through the seizure and degradation of the cytosolic damaged elements. However, when an excessive level of intracellular damage is reached, the autophagic process may also induce cell death. A correct modulation of specific stages of autophagy is important to maintain the correct balance in the organism. In this review, we highlight the critical role that autophagy plays in neurotoxicity induced by the most common classes of environmental contaminants. The understanding of this mechanism may be helpful to discover a potential therapeutic strategy to reduce side effects induced by these compounds.
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Affiliation(s)
- C Pellacani
- Dept. of Medicine and Surgery, University of Parma, Parma, Italy.
| | - L G Costa
- Dept. of Medicine and Surgery, University of Parma, Parma, Italy; Dept. of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
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19
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Grasso G, Santoro AM, Lanza V, Sbardella D, Tundo GR, Ciaccio C, Marini S, Coletta M, Milardi D. The double faced role of copper in Aβ homeostasis: A survey on the interrelationship between metal dyshomeostasis, UPS functioning and autophagy in neurodegeneration. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.06.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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20
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Slator C, Molphy Z, McKee V, Kellett A. Triggering autophagic cell death with a di-manganese(II) developmental therapeutic. Redox Biol 2017; 12:150-161. [PMID: 28236767 PMCID: PMC5328722 DOI: 10.1016/j.redox.2017.01.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/07/2017] [Accepted: 01/11/2017] [Indexed: 12/16/2022] Open
Abstract
There is an unmet need for novel metal-based chemotherapeutics with alternative modes of action compared to clinical agents such as cisplatin and metallo-bleomycin. Recent attention in this field has focused on designing intracellular ROS-mediators as powerful cytotoxins of human cancers and identifying potentially unique toxic mechanisms underpinning their utility. Herein, we report the developmental di-manganese(II) therapeutic [Mn2(μ-oda)(phen)4(H2O)2][Mn2(μ-oda)(phen)4(oda)2]·4H2O (Mn-Oda) induces autophagy-promoted apoptosis in human ovarian cancer cells (SKOV3). The complex was initially identified to intercalate DNA by topoisomerase I unwinding and circular dichroism spectroscopy. Intracellular DNA damage, detected by γH2AX and the COMET assay, however, is not linked to direct Mn-Oda free radical generation, but is instead mediated through the promotion of intracellular reactive oxygen species (ROS) leading to autophagic vacuole formation and downstream nuclear degradation. To elucidate the cytotoxic profile of Mn-Oda, a wide range of biomarkers specific to apoptosis and autophagy including caspase release, mitochondrial membrane integrity, fluorogenic probe localisation, and cell cycle analysis were employed. Through these techniques, the activity of Mn-Oda was compared directly to i.) the pro-apoptotic clinical anticancer drug doxorubicin, ii.) the multimodal histone deacetylase inhibitor suberoyanilide hydroxamic acid, and iii.) the autophagy inducer rapamycin. In conjunction with ROS-specific trapping agents and established inhibitors of autophagy, we have identified autophagy-induction linked to mitochondrial superoxide production, with confocal image analysis of SKOV3 cells further supporting autophagosome formation.
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Affiliation(s)
- Creina Slator
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Zara Molphy
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Vickie McKee
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Andrew Kellett
- School of Chemical Sciences and National Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland.
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21
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Coherent and Contradictory Facts, Feats and Fictions Associated with Metal Accumulation in Parkinson's Disease: Epicenter or Outcome, Yet a Demigod Question. Mol Neurobiol 2016; 54:4738-4755. [PMID: 27480264 DOI: 10.1007/s12035-016-0016-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 07/12/2016] [Indexed: 01/30/2023]
Abstract
Unwarranted exposure due to liberal use of metals for maintaining the lavish life and to achieve the food demand for escalating population along with an incredible boost in the average human life span owing to orchestrated progress in rejuvenation therapy have gradually increased the occurrence of Parkinson's disease (PD). Etiology is albeit elusive; association of PD with metal accumulation has never been overlooked due to noteworthy similitude between metal-exposure symptoms and a few cardinal features of disease. Even though metals are entailed in the vital functions, a hysterical shift, primarily augmentation, escorts the stern nigrostriatal dopaminergic neurodegeneration. An increase in the passage of metals through the blood brain barrier and impaired metabolic activity and elimination system could lead to metal accumulation in the brain, which eventually makes dopaminergic neurons quite susceptible. In the present article, an update on implication of metal accumulation in PD/Parkinsonism has been provided. Moreover, encouraging and paradoxical facts and fictions associated with metal accumulation in PD/Parkinsonism have also been compiled. Systematic literature survey of PD is performed to describe updated information if metal accumulation is an epicenter or merely an outcome. Finally, a perspective on the association of metal accumulation with pesticide-induced Parkinsonism has been explained to unveil the likely impact of the former in the latter.
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22
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Zhang Z, Miah M, Culbreth M, Aschner M. Autophagy in Neurodegenerative Diseases and Metal Neurotoxicity. Neurochem Res 2016; 41:409-22. [PMID: 26869037 DOI: 10.1007/s11064-016-1844-x] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/20/2016] [Accepted: 01/22/2016] [Indexed: 02/07/2023]
Abstract
Autophagy generally refers to cell catabolic and recycling process in which cytoplasmic components are delivered to lysosomes for degradation. During the last two decades, autophagy research has experienced a recent boom because of a newfound connection between this process and many human diseases. Autophagy plays a significant role in maintaining cellular homeostasis and protects cells from varying insults, including misfolded and aggregated proteins and damaged organelles, which is particularly crucial in neuronal survival. Mounting evidence has implicated autophagic dysfunction in the pathogenesis of several major neurodegenerative disorders, such as Parkinson's disease, Alzheimer's disease and Huntington's disease, where deficient elimination of abnormal and toxic protein aggregates promotes cellular stress, failure and death. In addition, autophagy has also been found to affect neurotoxicity induced by exposure to essential metals, such as manganese, copper, and iron, and other heavy metals, such as cadmium, lead, and methylmercury. This review examines current literature on the role of autophagy in the mechanisms of disease pathogenesis amongst common neurodegenerative disorders and of metal-induced neurotoxicity.
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Affiliation(s)
- Ziyan Zhang
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Forchheimer 209, Bronx, NY, 10461, USA
| | - Mahfuzur Miah
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Forchheimer 209, Bronx, NY, 10461, USA
| | - Megan Culbreth
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Forchheimer 209, Bronx, NY, 10461, USA
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Forchheimer 209, Bronx, NY, 10461, USA.
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23
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Briceño A, Muñoz P, Brito P, Huenchuguala S, Segura-Aguilar J, Paris IB. Aminochrome Toxicity is Mediated by Inhibition of Microtubules Polymerization Through the Formation of Adducts with Tubulin. Neurotox Res 2015; 29:381-93. [PMID: 26345577 DOI: 10.1007/s12640-015-9560-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 08/26/2015] [Accepted: 08/26/2015] [Indexed: 12/22/2022]
Abstract
In this study, we investigated the role of adducts formation between aminochrome and tubulin and its interference in microtubules assembly and stability in aminochrome-induced toxicity in SH-SY5Y cells. We also investigated whether changes in the microtubules structures are an early event that could affect tubulin expression. We demonstrated in vitro that aminochrome tubulin adducts inhibit tubulin polymerization and that aminochrome induces microtubules disassembly. Moreover, when the SH-SY5Y cells were incubated with aminochrome, we observed an increase in soluble tubulin, indicating depolymerization of microtubules. Aminochrome generates disruption of the microtubules network, leading to changes in the morphology of the cells inducing cell death, in a dose- and time-dependent manner. Interestingly, these changes preceded cell death and were partly inhibited by paclitaxel, a microtubule-stabilizing agent. Furthermore, we observed that aminochrome increased early tubulin expression before significant cell death occurred. Consequently, all these antecedents suggest that aminochrome toxicity is mediated by early disruption of microtubules network, where the adduct formation between aminochrome and tubulin could be responsible for the inhibition in the assembly microtubules and the loss of microtubules stability. Possibly, the early changes in tubulin expression could correspond to compensatory mechanisms against the toxic effects of aminochrome.
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Affiliation(s)
- Andrea Briceño
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, 8380453, Santiago, Chile
| | - Patricia Muñoz
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, 8380453, Santiago, Chile
| | - Patricia Brito
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomás, Limonares 190, 2561780, Viña del Mar, Chile
| | - Sandro Huenchuguala
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, 8380453, Santiago, Chile
| | - Juan Segura-Aguilar
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, 8380453, Santiago, Chile
| | - Irmgard B Paris
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, 8380453, Santiago, Chile. .,Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomás, Limonares 190, 2561780, Viña del Mar, Chile.
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24
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Abstract
In recent years, the contribution of exposure to environmental toxicants has been recognized as a significant contributor to the etiopathogenesis of parkinsonism. Of these toxicants, exposure to pesticides, metals, solvents used in manufacturing processes, as well as flame-retardant chemicals used in consumer and commercial products, has received the greatest attention as possible risk factors. Related to this, individuals who are exposed to these compounds at high concentrations or for prolonged periods of time in an occupational setting appear to be one of the more vulnerable populations to these effects. Our understanding of which compounds are involved and the potential molecular pathways that are susceptible to these chemicals and may underlie the pathogenesis has greatly improved. However, there are still hundreds of chemicals that we are exposed to in the environment for which we do not have any information on their potential neurotoxicity on the nigrostriatal dopamine system. Thus, using our past accomplishments as a blueprint, future endeavors should focus on elaborating upon these initial findings in order to identify specific and relevant chemical toxicants in our environment that can impact the risk of parkinsonism and work towards a means to attenuate or abolish their effects on the human population.
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Affiliation(s)
- W Michael Caudle
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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25
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Tan CP, Lu YY, Ji LN, Mao ZW. Metallomics insights into the programmed cell death induced by metal-based anticancer compounds. Metallomics 2014; 6:978-95. [PMID: 24668273 DOI: 10.1039/c3mt00225j] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Since the discovery of cisplatin more than 40 years ago, enormous research efforts have been dedicated to developing metal-based anticancer agents and to elucidating the mechanisms involved in the action of these compounds. Abnormal metabolism and the evasion of apoptosis are important hallmarks of malignant transformation, and the induction of apoptotic cell death has been considered to be a main pathway by which cytotoxic metal complexes combat cancer. However, many cancers have cellular defects involving the apoptotic machinery, which results in an acquired resistance to apoptotic cell death and therefore reduced chemotherapeutic effectiveness. Over the past decade, it has been revealed that a growing number of cell death pathways induced by metal complexes are not dependent on apoptosis. Metal complexes specifically triggering these alternative cell death pathways have been identified and explored as novel cancer treatment options. In this review, we discuss recent examples of metallomics studies on the different types of cell death induced by metal-based anticancer drugs, especially on the three major forms of programmed cell death (PCD) in mammalian cells: apoptosis, autophagy and regulated necrosis, also called necroptosis.
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Affiliation(s)
- Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China.
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26
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Anandhan A, Rodriguez-Rocha H, Bohovych I, Griggs AM, Zavala-Flores L, Reyes-Reyes EM, Seravalli J, Stanciu LA, Lee J, Rochet JC, Khalimonchuk O, Franco R. Overexpression of alpha-synuclein at non-toxic levels increases dopaminergic cell death induced by copper exposure via modulation of protein degradation pathways. Neurobiol Dis 2014; 81:76-92. [PMID: 25497688 DOI: 10.1016/j.nbd.2014.11.018] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 11/03/2014] [Accepted: 11/26/2014] [Indexed: 12/14/2022] Open
Abstract
Gene multiplications or point mutations in alpha (α)-synuclein are associated with familial and sporadic Parkinson's disease (PD). An increase in copper (Cu) levels has been reported in the cerebrospinal fluid and blood of PD patients, while occupational exposure to Cu has been suggested to augment the risk to develop PD. We aimed to elucidate the mechanisms by which α-synuclein and Cu regulate dopaminergic cell death. Short-term overexpression of wild type (WT) or mutant A53T α-synuclein had no toxic effect in human dopaminergic cells and primary midbrain cultures, but it exerted a synergistic effect on Cu-induced cell death. Cell death induced by Cu was potentiated by overexpression of the Cu transporter protein 1 (Ctr1) and depletion of intracellular glutathione (GSH) indicating that the toxic effects of Cu are linked to alterations in its intracellular homeostasis. Using the redox sensor roGFP, we demonstrated that Cu-induced oxidative stress was primarily localized in the cytosol and not in the mitochondria. However, α-synuclein overexpression had no effect on Cu-induced oxidative stress. WT or A53T α-synuclein overexpression exacerbated Cu toxicity in dopaminergic and yeast cells in the absence of α-synuclein aggregation. Cu increased autophagic flux and protein ubiquitination. Impairment of autophagy by overexpression of a dominant negative Atg5 form or inhibition of the ubiquitin/proteasome system (UPS) with MG132 enhanced Cu-induced cell death. However, only inhibition of the UPS stimulated the synergistic toxic effects of Cu and α-synuclein overexpression. Our results demonstrate that α-synuclein stimulates Cu toxicity in dopaminergic cells independent from its aggregation via modulation of protein degradation pathways.
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Affiliation(s)
- Annadurai Anandhan
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Humberto Rodriguez-Rocha
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Iryna Bohovych
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Amy M Griggs
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA
| | - Laura Zavala-Flores
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | | | - Javier Seravalli
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Lia A Stanciu
- Weldon School of Biomedical Engineering and School of Materials Engineering, Purdue University, West Lafayette, IN, USA
| | - Jaekwon Lee
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jean-Christophe Rochet
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA
| | - Oleh Khalimonchuk
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Rodrigo Franco
- Redox Biology Center, University of Nebraska-Lincoln, Lincoln, NE, USA; School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
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Jazvinšćak Jembrek M, Vlainić J, Radovanović V, Erhardt J, Oršolić N. Effects of copper overload in P19 neurons: impairment of glutathione redox homeostasis and crosstalk between caspase and calpain protease systems in ROS-induced apoptosis. Biometals 2014; 27:1303-22. [PMID: 25216733 DOI: 10.1007/s10534-014-9792-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 09/05/2014] [Indexed: 12/22/2022]
Abstract
Copper, a transition metal with essential biological functions, exerts neurotoxic effects when present in excess. The aim of the present study was to better elucidate cellular and molecular mechanisms of CuSO4 toxicity in differentiated P19 neurons. Exposure to 0.5 mM CuSO4 for 24 h provoked moderate decrease in viability, accompanied with barely increased generation of reactive oxygen species (ROS) and caspase-3/7 activity. Glutathione (GSH) and ATP contents were depleted, lactate dehydrogenase inactivated, and glyceraldehyde-3-phosphate dehydrogenase overexpressed. In severely damaged neurons exposed to only two times higher concentration, classical caspase-dependent apoptosis was triggered as evidenced by marked caspase-3/7 activation and chromatin condensation. Multifold increase in ROS, together with very pronounced ATP and GSH loss, strongly suggests impairment of redox homeostasis. At higher copper concentration protease calpains were also activated, and neuronal injury was prevented in the presence of calpain inhibitor leupeptin through the mechanism that affects caspase activation. MK-801 and nifedipine, inhibitors of calcium entry, and H-89 and UO126, inhibitors of PKA and ERK signaling respectively, exacerbated neuronal death only in severely damaged neurons, while ROS-scavenger quercetin and calcium chelator BAPTA attenuated toxicity only at lower concentration. In a dose-dependent manner copper also provoked transcriptional changes of genes involved in intracellular signaling and induction of apoptosis (p53, c-fos, Bcl-2 and Bax). The obtained results emphasize differences in triggered neuronal-death processes in a very narrow range of concentrations and give further insight into the molecular mechanisms of copper toxicity with the potential to improve current therapeutic approaches in curing copper-related neurodegenerative diseases.
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Affiliation(s)
- Maja Jazvinšćak Jembrek
- Laboratory for Molecular Neuropharmacology, Division of Molecular Medicine, Rudjer Boskovic Institute, Bijenicka 54, HR-10 000, Zagreb, Croatia,
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28
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Zhong W, Zhu H, Sheng F, Tian Y, Zhou J, Chen Y, Li S, Lin J. Activation of the MAPK11/12/13/14 (p38 MAPK) pathway regulates the transcription of autophagy genes in response to oxidative stress induced by a novel copper complex in HeLa cells. Autophagy 2014; 10:1285-300. [PMID: 24905917 PMCID: PMC4203553 DOI: 10.4161/auto.28789] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Transition metal copper (Cu) can exist in oxidized or reduced states in cells, leading to cytotoxicity in cancer cells through oxidative stress. Recently, copper complexes are emerging as a new class of anticancer compounds. Here, we report that a novel anticancer copper complex (HYF127c/Cu) induces oxidative stress-dependent cell death in cancer cells. Further, transcriptional analysis revealed that oxidative stress elicits broad transcriptional changes of genes, in which autophagy-related genes are significantly changed in HYF127c/Cu-treated cells. Consistently, autophagy was induced in HYF127c/Cu-treated cells and inhibitors of autophagy promoted cell death induced by HYF127c/Cu. Further analysis identified that the MAPK11/12/13/14 (formerly known as p38 MAPK) pathway was also activated in HYF127c/Cu-treated cells. Meanwhile, the MAPK11/12/13/14 inhibitor SB203580 downregulated autophagy by inhibiting the transcription of the autophagy genes MAP1LC3B, BAG3, and HSPA1A, and promoted HYF127c/Cu-induced cell death. These data suggest that copper-induced oxidative stress will induce protective autophagy through transcriptional regulation of autophagy genes by activation of the MAPK11/12/13/14 pathway in HeLa cells.
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Affiliation(s)
- Wu Zhong
- Laboratory of Computer-Aided Drug Design and Discovery; Beijing Institute of Pharmacology and Toxicology; Beijing, China
| | - Haichuan Zhu
- Laboratory of Computer-Aided Drug Design and Discovery; Beijing Institute of Pharmacology and Toxicology; Beijing, China; Synthetic and Functional Biomolecules Center; College of Chemistry and Molecular Engineering; Peking University; Beijing, China
| | - Fugeng Sheng
- Department of Radiology; Affiliated Hospital of the Academy of Military Medical Science; Beijing, China
| | - Yonglu Tian
- Laboratory Animal Centre; Peking University; Beijing, China
| | - Jun Zhou
- Laboratory of Computer-Aided Drug Design and Discovery; Beijing Institute of Pharmacology and Toxicology; Beijing, China
| | - Yingyu Chen
- Centre for Human Disease Genomics; Peking University; Beijing, China
| | - Song Li
- Laboratory of Computer-Aided Drug Design and Discovery; Beijing Institute of Pharmacology and Toxicology; Beijing, China
| | - Jian Lin
- Synthetic and Functional Biomolecules Center; College of Chemistry and Molecular Engineering; Peking University; Beijing, China
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29
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Kostoff RN. Literature-related discovery: common factors for Parkinson’s Disease and Crohn’s Disease. Scientometrics 2014. [DOI: 10.1007/s11192-014-1298-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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30
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Segura-Aguilar J, Paris I, Muñoz P, Ferrari E, Zecca L, Zucca FA. Protective and toxic roles of dopamine in Parkinson's disease. J Neurochem 2014; 129:898-915. [PMID: 24548101 DOI: 10.1111/jnc.12686] [Citation(s) in RCA: 309] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 02/12/2014] [Indexed: 12/21/2022]
Abstract
The molecular mechanisms causing the loss of dopaminergic neurons containing neuromelanin in the substantia nigra and responsible for motor symptoms of Parkinson's disease are still unknown. The discovery of genes associated with Parkinson's disease (such as alpha synuclein (SNCA), E3 ubiquitin protein ligase (parkin), DJ-1 (PARK7), ubiquitin carboxyl-terminal hydrolase isozyme L1 (UCHL-1), serine/threonine-protein kinase (PINK-1), leucine-rich repeat kinase 2 (LRRK2), cation-transporting ATPase 13A1 (ATP13A), etc.) contributed enormously to basic research towards understanding the role of these proteins in the sporadic form of the disease. However, it is generally accepted by the scientific community that mitochondria dysfunction, alpha synuclein aggregation, dysfunction of protein degradation, oxidative stress and neuroinflammation are involved in neurodegeneration. Dopamine oxidation seems to be a complex pathway in which dopamine o-quinone, aminochrome and 5,6-indolequinone are formed. However, both dopamine o-quinone and 5,6-indolequinone are so unstable that is difficult to study and separate their roles in the degenerative process occurring in Parkinson's disease. Dopamine oxidation to dopamine o-quinone, aminochrome and 5,6-indolequinone seems to play an important role in the neurodegenerative processes of Parkinson's disease as aminochrome induces: (i) mitochondria dysfunction, (ii) formation and stabilization of neurotoxic protofibrils of alpha synuclein, (iii) protein degradation dysfunction of both proteasomal and lysosomal systems and (iv) oxidative stress. The neurotoxic effects of aminochrome in dopaminergic neurons can be inhibited by: (i) preventing dopamine oxidation of the transporter that takes up dopamine into monoaminergic vesicles with low pH and dopamine oxidative deamination catalyzed by monoamino oxidase (ii) dopamine o-quinone, aminochrome and 5,6-indolequinone polymerization to neuromelanin and (iii) two-electron reduction of aminochrome catalyzed by DT-diaphorase. Furthermore, dopamine conversion to NM seems to have a dual role, protective and toxic, depending mostly on the cellular context. Dopamine oxidation to dopamine o-quinone, aminochrome and 5,6-indolequinone plays an important role in neurodegeneration in Parkinson's disease since they induce mitochondria and protein degradation dysfunction; formation of neurotoxic alpha synuclein protofibrils and oxidative stress. However, the cells have a protective system against dopamine oxidation composed by dopamine uptake mediated by Vesicular monoaminergic transporter-2 (VMAT-2), neuromelanin formation, two-electron reduction and GSH-conjugation mediated by Glutathione S-transferase M2-2 (GSTM2).
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Affiliation(s)
- Juan Segura-Aguilar
- Faculty of Medicine, Molecular and Clinical Pharmacology, ICBM, University of Chile, Santiago, Chile
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31
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Huenchuguala S, Muñoz P, Zavala P, Villa M, Cuevas C, Ahumada U, Graumann R, Nore BF, Couve E, Mannervik B, Paris I, Segura-Aguilar J. Glutathione transferase mu 2 protects glioblastoma cells against aminochrome toxicity by preventing autophagy and lysosome dysfunction. Autophagy 2014; 10:618-30. [PMID: 24434817 DOI: 10.4161/auto.27720] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
U373MG cells constitutively express glutathione S-transferase mu 2 (GSTM2) and exhibit (3)H-dopamine uptake, which is inhibited by 2 µM of nomifensine and 15 µM of estradiol. We generated a stable cell line (U373MGsiGST6) expressing an siRNA against GSTM2 that resulted in low GSTM2 expression (26% of wild-type U373MG cells). A significant increase in cell death was observed when U373MGsiGST6 cells were incubated with 50 µM purified aminochrome (18-fold increase) compared with wild-type cells. The incubation of U373MGsiGST6 cells with 75 µM aminochrome resulted in the formation of autophagic vacuoles containing undigested cellular components, as determined using transmission electron microscopy. A significant increase in autophagosomes was determined by measuring endogenous LC3-II, a significant decrease in cell death was observed in the presence of bafilomycin A 1, and a significant increase in cell death was observed in the presence of trehalose. A significant increase in LAMP2 immunostaining was observed, a significant decrease in bright red fluorescence of lysosomes with acridine orange was observed, and bafilomycin A 1 pretreatment reduced the loss of lysosome acidity. A significant increase in cell death was observed in the presence of lysosomal protease inhibitors. Aggregation of TUBA/α-tubulin (tubulin, α) and SQSTM1 protein accumulation were also observed. Moreover, a significant increase in the number of lipids droplets was observed compared with U373MG cells with normal expression of GSTM2. These results support the notion that GSTM2 is a protective enzyme against aminochrome toxicity in astrocytes and that aminochrome cell death in U373MGsiGST6 cells involves autophagic-lysosomal dysfunction.
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Affiliation(s)
- Sandro Huenchuguala
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Patricia Muñoz
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Patricio Zavala
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Mónica Villa
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Carlos Cuevas
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Ulises Ahumada
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Rebecca Graumann
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
| | - Beston F Nore
- Laboratory of Medicine; Clinical Research Center-Novum; Karolinska Institutet; Sweden; Department of Medical Biochemistry; School of Medicine; Faculty of Medical Sciences; University of Sulaimani; Ministry of Higher Education and Research; Kurdistan Regional Government; Iraq
| | - Eduardo Couve
- Department of Biology and Environmental sciences; University of Valparaiso; Valparaiso, Chile
| | - Bengt Mannervik
- Department of Neurochemistry; Stockholm University; Stockholm, Sweden
| | - Irmgard Paris
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile; Department of Basic Sciences; Santo Tomas University; Viña del Mar, Chile
| | - Juan Segura-Aguilar
- Molecular and Clinical Pharmacology; ICBM-Instituto de Ciencias Biomédicas; Faculty of Medicine; University of Chile; Santiago, Chile
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32
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Silva VDA, Pitanga BPS, Nascimento RP, Souza CS, Coelho PLC, Menezes-Filho N, Silva AMM, Costa MDFD, El-Bachá RS, Velozo ES, Costa SL. Juliprosopine and juliprosine from prosopis juliflora leaves induce mitochondrial damage and cytoplasmic vacuolation on cocultured glial cells and neurons. Chem Res Toxicol 2013; 26:1810-20. [PMID: 23923817 DOI: 10.1021/tx4001573] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Prosopis juliflora is a shrub largely used for animal and human consumption. However, ingestion has been shown to induce intoxication in animals, which is characterized by neuromuscular alterations induced by mechanisms that are not yet well understood. In this study, we investigated the cytotoxicity of a total alkaloid extract (TAE) and one alkaloid fraction (F32) obtained from P. juliflora leaves to rat cortical neurons and glial cells. Nuclear magnetic resonance characterization of F32 showed that this fraction is composed of a mixture of two piperidine alkaloids, juliprosopine (majority constituent) and juliprosine. TAE and F32 at concentrations between 0.3 and 45 μg/mL were tested for 24 h on neuron/glial cell primary cocultures. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide test revealed that TAE and F32 were cytotoxic to cocultures, and their IC50 values were 31.07 and 7.362 μg/mL, respectively. Exposure to a subtoxic concentration of TAE or F32 (0.3-3 μg/mL) induced vacuolation and disruption of the astrocyte monolayer and neurite network, ultrastructural changes, characterized by formation of double-membrane vacuoles, and mitochondrial damage, associated with changes in β-tubulin III and glial fibrillary acidic protein expression. Microglial proliferation was also observed in cultures exposed to TAE or F32, with increasing levels of OX-42-positive cells. Considering that F32 was more cytotoxic than TAE and that F32 reproduced in vitro the main morphologic and ultrastructural changes of "cara torta" disease, we can also suggest that piperidine alkaloids juliprosopine and juliprosine are primarily responsible for the neurotoxic damage observed in animals after they have consumed the plant.
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Affiliation(s)
- Victor Diogenes A Silva
- Laboratório de Neuroquímica e Biologia Celular, Instituto de Ciências da Saúde, Universidade Federal da Bahia , Salvador, Brazil
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34
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Villa M, Muñoz P, Ahumada-Castro U, Paris I, Jiménez A, Martínez I, Sevilla F, Segura-Aguilar J. One-electron reduction of 6-hydroxydopamine quinone is essential in 6-hydroxydopamine neurotoxicity. Neurotox Res 2013; 24:94-101. [PMID: 23385626 DOI: 10.1007/s12640-013-9382-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 01/22/2013] [Accepted: 01/24/2013] [Indexed: 12/22/2022]
Abstract
6-Hydroxydamine has widely been used as neurotoxin in preclinical studies related on the neurodegenerative process of dopaminergic neurons in Parkinson's disease based on its ability to be neurotoxic as a consequence of free radical formation during its auto-oxidation to topaminequinone. We report that 50-µM 6-hydroxydopamine is not neurotoxic in RCSN-3 cells derived from substantia nigra incubated during 24 h contrasting with a significant sixfold increase in cell death (16 ± 2 %; P < 0.001) was observed in RCSN-3NQ7 cells expressing a siRNA against DT-diaphorase that silence the enzyme expression. To observe a significant cell death in RCSN-3 cells induced by 6-hydroxydopamine (24 ± 1 %; P < 0.01), we have to increase the concentration to 250 μm while a 45 ± 2 % cell death (P < 0.001) was observed at this concentration in RCSN-3NQ7 cells. The cell death induced by 6-hydroxydopamine in RCSN-3NQ7 cells was accompanied with a (i) significant increase in oxygen consumption (P < 0.01), (ii) depletion of reduced glutathione and (iii) a significant decrease in ATP level (P < 0.05) in comparison with RCSN-3 cells. In conclusion, our results suggest that one-electron reduction of 6-hydroxydopamine quinone seems to be the main reaction responsible for 6-hydroxydopamine neurotoxic effects in dopaminergic neurons and DT-diaphorase seems to play an important neuroprotective role by preventing one-electron reduction of topaminequinone.
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Affiliation(s)
- Monica Villa
- Program of Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, Santiago, Chile
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Dong QY, Wu ZY. Advance in the pathogenesis and treatment of Wilson disease. Transl Neurodegener 2012; 1:23. [PMID: 23210912 PMCID: PMC3526418 DOI: 10.1186/2047-9158-1-23] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 11/21/2012] [Indexed: 02/06/2023] Open
Abstract
Wilson disease is an autosomal recessive disorder of copper metabolism. Diagnosis depends primarily on clinical features, biochemical parameters and the presence of the Kayser-Fleischer ring. Genetic analysis for mutations within ATP7B is a convincing diagnostic tool. The traditional treatment for WD includes chelation of excessive copper accumulation and reduction of copper intake. Medical therapy is effective but WD is not yet curable. Liver transplantation is especially helpful for patients who fail to respond to medical therapy or present with fulminant liver failure, although evaluation of its long-term effect are still in need.
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Affiliation(s)
- Qin-Yun Dong
- Department of Neurology and Institute of Neurology, Huashan Hospital, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Shanghai Medical College, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
| | - Zhi-Ying Wu
- Department of Neurology and Institute of Neurology, Huashan Hospital, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Shanghai Medical College, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, China
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Muñoz P, Huenchuguala S, Paris I, Segura-Aguilar J. Dopamine oxidation and autophagy. PARKINSON'S DISEASE 2012; 2012:920953. [PMID: 22966478 PMCID: PMC3433151 DOI: 10.1155/2012/920953] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 07/09/2012] [Indexed: 11/17/2022]
Abstract
The molecular mechanisms involved in the neurodegenerative process of Parkinson's disease remain unclear. Currently, there is a general agreement that mitochondrial dysfunction, α-synuclein aggregation, oxidative stress, neuroinflammation, and impaired protein degradation are involved in the neurodegeneration of dopaminergic neurons containing neuromelanin in Parkinson's disease. Aminochrome has been proposed to play an essential role in the degeneration of dopaminergic neurons containing neuromelanin by inducing mitochondrial dysfunction, oxidative stress, the formation of neurotoxic α-synuclein protofibrils, and impaired protein degradation. Here, we discuss the relationship between the oxidation of dopamine to aminochrome, the precursor of neuromelanin, autophagy dysfunction in dopaminergic neurons containing neuromelanin, and the role of dopamine oxidation to aminochrome in autophagy dysfunction in dopaminergic neurons. Aminochrome induces the following: (i) the formation of α-synuclein protofibrils that inactivate chaperone-mediated autophagy; (ii) the formation of adducts with α- and β-tubulin, which induce the aggregation of the microtubules required for the fusion of autophagy vacuoles and lysosomes.
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Affiliation(s)
- Patricia Muñoz
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, Santiago 8380453, Chile
| | - Sandro Huenchuguala
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, Santiago 8380453, Chile
| | - Irmgard Paris
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, Santiago 8380453, Chile
- Department of Basic Sciences, Santo Tomas University, Viña del Mar 2561780, Chile
| | - Juan Segura-Aguilar
- Molecular & Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Independencia 1027, Santiago 8380453, Chile
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Industrial toxicants and Parkinson's disease. Neurotoxicology 2012; 33:178-88. [PMID: 22309908 DOI: 10.1016/j.neuro.2012.01.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 01/19/2012] [Accepted: 01/23/2012] [Indexed: 11/22/2022]
Abstract
The exposure of the human population to environmental contaminants is recognized as a significant contributing factor for the development of Parkinson's disease (PD) and other forms of parkinsonism. While pesticides have repeatedly been identified as risk factors for PD, these compounds represent only a subset of environmental toxicants that we are exposed to on a regular basis. Thus, non-pesticide contaminants, such as metals, solvents, and other organohalogen compounds have also been implicated in the clinical and pathological manifestations of these movement disorders and it is these non-pesticide compounds that are the subject of this review. As toxic exposures to these classes of compounds can result in a spectrum of PD or PD-related disorders, it is imperative to appreciate shared clinico-pathological characteristics or mechanisms of action of these compounds in order to further delineate the resultant disorders as well as identify improved preventive strategies or therapeutic interventions.
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Saha B, Mukherjee A, Samanta S, Paul S, Bhattacharya D, Santra CR, Karmakar P. A novel Cu(ii)–mal–picoline complex induces mitotic catastrophe mediated by deacetylation of histones and α-tubulin leading to apoptosis in human cell lines. MEDCHEMCOMM 2012. [DOI: 10.1039/c2md00285j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Paris I, Muñoz P, Huenchuguala S, Couve E, Sanders LH, Greenamyre JT, Caviedes P, Segura-Aguilar J. Autophagy protects against aminochrome-induced cell death in substantia nigra-derived cell line. Toxicol Sci 2011; 121:376-88. [PMID: 21427056 DOI: 10.1093/toxsci/kfr060] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aminochrome, the precursor of neuromelanin, has been proposed to be involved in the neurodegeneration neuromelanin-containing dopaminergic neurons in Parkinson's disease. We aimed to study the mechanism of aminochrome-dependent cell death in a cell line derived from rat substantia nigra. We found that aminochrome (50μM), in the presence of NAD(P)H-quinone oxidoreductase, EC 1.6.99.2 (DT)-diaphorase inhibitor dicoumarol (DIC) (100μM), induces significant cell death (62 ± 3%; p < 0.01), increase in caspase-3 activation (p < 0.001), release of cytochrome C, disruption of mitochondrial membrane potential (p < 0.01), damage of mitochondrial DNA, damage of mitochondria determined with transmission electron microscopy, a dramatic morphological change characterized as cell shrinkage, and significant increase in number of autophagic vacuoles. To determine the role of autophagy on aminochrome-induced cell death, we incubated the cells in the presence of vinblastine and rapamycin. Interestingly, 10μM vinblastine induces a 5.9-fold (p < 0.001) and twofold (p < 0.01) significant increase in cell death when the cells were incubated with 30μM aminochrome in the absence and presence of DIC, respectively, whereas 10μM rapamycin preincubated 24 h before addition of 50μM aminochrome in the absence and the presence of 100μM DIC induces a significant decrease (p < 0.001) in cell death. In conclusion, autophagy seems to be an important protective mechanism against two different aminochrome-induced cell deaths that initially showed apoptotic features. The cell death induced by aminochrome when DT-diaphorase is inhibited requires activation of mitochondrial pathway, whereas the cell death induced by aminochrome alone requires inhibition of autophagy-dependent degrading of damaged organelles and recycling through lysosomes.
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Affiliation(s)
- Irmgard Paris
- Program of Molecular and Clinical Pharmacology, Biomedical Science Institute, Faculty of Medicine, University of Chile, Santiago 8380453, Chile
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Paris I, Segura-Aguilar J. The role of metal ions in dopaminergic neuron degeneration in Parkinsonism and Parkinson’s disease. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-011-0478-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Segura-Aguilar J. Catecholaminergic Cell Lines for the Study of Dopamine Metabolism and Neurotoxicity. NEUROMETHODS 2011. [DOI: 10.1007/978-1-61779-077-5_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Different Mechanisms Between Copper and Iron in Catecholamines-Mediated Oxidative DNA Damage and Disruption of Gene Expression In Vitro. Neurotox Res 2010; 20:84-92. [DOI: 10.1007/s12640-010-9226-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Revised: 09/28/2010] [Accepted: 10/18/2010] [Indexed: 10/18/2022]
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Lozano J, Muñoz P, Nore BF, LeDoux S, Segura-Aguilar J. Stable Expression of Short Interfering RNA for DT-Diaphorase Induces Neurotoxicity. Chem Res Toxicol 2010; 23:1492-6. [DOI: 10.1021/tx100182a] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Jorge Lozano
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Chile, Laboratory Medicine, Clinical Research Centre-Novum, Karolinska Institutet, Sweden, and Department of Cell Biology and Neuroscience, University of South Alabama
| | - Patricia Muñoz
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Chile, Laboratory Medicine, Clinical Research Centre-Novum, Karolinska Institutet, Sweden, and Department of Cell Biology and Neuroscience, University of South Alabama
| | - Beston F. Nore
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Chile, Laboratory Medicine, Clinical Research Centre-Novum, Karolinska Institutet, Sweden, and Department of Cell Biology and Neuroscience, University of South Alabama
| | - Susan LeDoux
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Chile, Laboratory Medicine, Clinical Research Centre-Novum, Karolinska Institutet, Sweden, and Department of Cell Biology and Neuroscience, University of South Alabama
| | - Juan Segura-Aguilar
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Chile, Laboratory Medicine, Clinical Research Centre-Novum, Karolinska Institutet, Sweden, and Department of Cell Biology and Neuroscience, University of South Alabama
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Rodríguez-Navarro JA, Rodríguez L, Casarejos MJ, Solano RM, Gómez A, Perucho J, Cuervo AM, García de Yébenes J, Mena MA. Trehalose ameliorates dopaminergic and tau pathology in parkin deleted/tau overexpressing mice through autophagy activation. Neurobiol Dis 2010; 39:423-38. [PMID: 20546895 DOI: 10.1016/j.nbd.2010.05.014] [Citation(s) in RCA: 231] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 04/29/2010] [Accepted: 05/11/2010] [Indexed: 01/14/2023] Open
Abstract
Tauopathies are neurodegenerative diseases, sporadic or familial, mainly characterized by dementia and parkinsonism associated to atrophy of the frontotemporal cortex and the basal ganglia, with deposition of abnormal tau in brain. Hereditary tauopathies are related with mutations of the tau gene. Up to the present, these diseases have not been helped by any disease-modifying treatment, and patients die a few years after the onset of symptoms. We have developed and characterized a mouse model of tauopathy with parkinsonism, overexpressing human mutated tau protein with deletion of parkin (PK(-/-)/Tau(VLW)). At 3 months of age, these mice present abnormal dopamine-related behavior, severe dropout of dopamine neurons in the ventral midbrain, reduced dopamine levels in the striatum and abundant phosphorylated tau-positive neuritic plaques, neurofibrillary tangles, astrogliosis, and, at 12 months old, plaques of murine beta-amyloid in the hippocampus. Trehalose is a natural disaccharide that increases the removal of abnormal proteins through enhancement of autophagy. In this work, we tested if 1% trehalose in the drinking water reverts the PK(-/-)/Tau(VLW) phenotype. The treatment with trehalose of 3-month-old PK(-/-)/Tau(VLW) mice for 2.5 months reverted the dropout of dopamine neurons, which takes place in the ventral midbrain of vehicle treated PK(-/-)/Tau(VLW) and the reduced dopamine-related proteins levels in the midbrain and striatum. The number of phosphorylated tau-positive neuritic plaques and the levels of phosphorylated tau decreased, as well as astrogliosis in brain regions. The autophagy markers in the brain, the autophagic vacuoles isolated from the liver, and the electron microscopy data indicate that these effects of trehalose are mediated by autophagy. The treatment with trehalose for 4 months of 3-month-old PK(-/-)/Tau(VLW) mice maintained the amelioration of the tau pathology and astrogliosis but failed to revert DA-related pathology in the striatum. Furthermore, the 3-week treatment with trehalose of 14-month-old PK(-/-)/Tau(VLW) mice, at the limit of their life expectancy, improved the motor behavior and anxiety of these animals, and reduced their levels of phosphorylated tau and the number of murine beta-amyloid plaques. Trehalose is neuroprotective in this model of tauopathy. Since trehalose is free of toxic effects at high concentrations, this study opens the way for clinical studies of the effects of trehalose in human tauopathies.
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Arnal N, Cristalli DO, de Alaniz MJ, Marra CA. Clinical utility of copper, ceruloplasmin, and metallothionein plasma determinations in human neurodegenerative patients and their first-degree relatives. Brain Res 2010; 1319:118-30. [DOI: 10.1016/j.brainres.2009.11.085] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Revised: 11/04/2009] [Accepted: 11/08/2009] [Indexed: 01/11/2023]
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Paris I, Perez-Pastene C, Cardenas S, Iturriaga-Vasquez P, Iturra P, Muñoz P, Couve E, Caviedes P, Segura-Aguilar J. Aminochrome induces disruption of actin, alpha-, and beta-tubulin cytoskeleton networks in substantia-nigra-derived cell line. Neurotox Res 2010; 18:82-92. [PMID: 20087799 DOI: 10.1007/s12640-009-9148-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 11/19/2009] [Accepted: 12/23/2009] [Indexed: 10/20/2022]
Abstract
In previous studies, we observed that cells treated with aminochrome obtained by oxidizing dopamine with oxidizing agents dramatically changed cell morphology, thus posing the question if such morphological changes were dependent on aminochrome or the oxidizing agents used to produce aminochrome. Therefore, to answer this question, we have now purified aminochrome on a CM-Sepharose 50-100 column and, using NMR studies, we have confirmed that the resulting aminochrome was pure and that it retained its structure. Fluorescence microscopy with calcein-AM and transmission electron microscopy showed that RCSN-3 cells presented an elongated shape that did not change when the cells were incubated with 50 muM aminochrome or 100 muM dicoumarol, an inhibitor of DT-diaphorase. However, the cell were reduced in size and the elongated shape become spherical when the cells where incubated with 50 muM aminochrome in the presence of 100 muM dicoumarol. Under these conditions, actin, alpha-, and beta-tubulin cytoskeleton filament networks became condensed around the cell membrane. Actin aggregates were also observed in cells processes that connected the cells in culture. These results suggest that aminochrome one-electron metabolism induces the disruption of the normal morphology of actin, alpha-, and beta-tubulin in the cytoskeleton, and that DT-diaphorase prevents these effects.
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Affiliation(s)
- Irmgard Paris
- Program of Molecular and Clinical Pharmacology, Faculty of Medicine, ICBM, Independencia1027, Casilla, Santiago, 70000, Chile
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