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Gu J, Huang W, Duanmu Z, Zhuang R, Yang X. Cuproptosis and copper deficiency in ischemic vascular injury and repair. Apoptosis 2024; 29:1007-1018. [PMID: 38649508 DOI: 10.1007/s10495-024-01969-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
Ischemic vascular diseases are on the rise globally, including ischemic heart diseases, ischemic cerebrovascular diseases, and ischemic peripheral arterial diseases, posing a significant threat to life. Copper is an essential element in various biological processes, copper deficiency can reduce blood vessel elasticity and increase platelet aggregation, thereby increasing the risk of ischemic vascular disease; however, excess copper ions can lead to cytotoxicity, trigger cell death, and ultimately result in vascular injury through several signaling pathways. Herein, we review the role of cuproptosis and copper deficiency implicated in ischemic injury and repair including myocardial, cerebral, and limb ischemia. We conclude with a perspective on the therapeutic opportunities and future challenges of copper biology in understanding the pathogenesis of ischemic vascular disease states.
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Affiliation(s)
- Jiayi Gu
- Department of Neurology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Huang
- Department of Neurology, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zheng Duanmu
- School of Instrument Science and Opto-Electronics Engineering of Beijing Information Science and Technology University, Beijing, China
| | - Rulin Zhuang
- Department of Cardiothoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
| | - Xilan Yang
- Department of General Practice, The Fourth Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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2
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Kim C, Tsai TH, Lopez R, McCullough A, Kasumov T. Obeticholic acid's effect on HDL function in MASH varies by diabetic status. Lipids 2024. [PMID: 39014264 DOI: 10.1002/lipd.12408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/18/2024]
Abstract
Inflammation and oxidative stress are the key factors in the pathogenesis of both metabolic dysfunction-associated steatohepatitis (MASH) and atherosclerosis. Obeticholic acid (OCA), a farnesoid X receptor (FXR) agonist, improves hepatic inflammation and fibrosis in patients with MASH. However, it also reduces HDL cholesterol, suggesting that OCA may increase cardiovascular disease (CVD) risk in patients with MASH. We assessed HDL cholesterol efflux function, antioxidant (paraoxonase and ceruloplasmin activity), pro-inflammatory index, and particle sizes in a small group of patients with and without diabetes (n = 10/group) at baseline and after 18 months of OCA treatment. Patients on lipid-lowering medications (statins, fibrates) were excluded. At baseline, ferritin levels were higher in patients with MASH without diabetes (336.5 [157.0, 451.0] vs. 83 [36.0, 151.0] ng/mL, p < 0.005). Markers of HDL functions were similar in both groups. OCA therapy significantly improved liver histology and liver enzymes but increased alkaline phosphatase levels in nondiabetic patients with MASH (p < 0.05). However, it did not have any significant effect on cholesterol efflux and the antioxidant paraoxonase functions. In nondiabetics, ceruloplasmin (CP) antioxidant activity decreased (p < 0.005) and the pro-inflammatory index of HDL increased (p < 0.005) due to OCA therapy. In contrast, in diabetics, OCA increased levels of pre-β-HDL-the HDL particles enhanced protective capacity (p = 0.005) with no alteration in HDL functionality. In all patients, serum glucose levels were negatively correlated with OCA-induced change in pro-inflammatory function in HDL (p < 0.001), which was primarily due to diabetes (p = 0.05). These preliminary results suggest a distinct effect of OCA therapy on diabetic and nondiabetic patients with MASH and warrant a future large-scale study.
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Affiliation(s)
- Chunki Kim
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio, USA
| | - Tsung-Heng Tsai
- Department of Mathematical Sciences, Kent State University, Kent, Ohio, USA
| | - Rocio Lopez
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Arthur McCullough
- Department of Hepatology and Gastroenterology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Takhar Kasumov
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, Ohio, USA
- Department of Hepatology and Gastroenterology, Cleveland Clinic, Cleveland, Ohio, USA
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3
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Yang Z, Feng R, Zhao H. Cuproptosis and Cu: a new paradigm in cellular death and their role in non-cancerous diseases. Apoptosis 2024:10.1007/s10495-024-01993-y. [PMID: 39014119 DOI: 10.1007/s10495-024-01993-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2024] [Indexed: 07/18/2024]
Abstract
Cuproptosis, a newly characterized form of regulated cell death driven by copper accumulation, has emerged as a significant mechanism underlying various non-cancerous diseases. This review delves into the complex interplay between copper metabolism and the pathogenesis of conditions such as Wilson's disease (WD), neurodegenerative disorders, and cardiovascular pathologies. We examine the molecular mechanisms by which copper dysregulation induces cuproptosis, highlighting the pivotal roles of key copper transporters and enzymes. Additionally, we evaluate the therapeutic potential of copper chelation strategies, which have shown promise in experimental models by mitigating copper-induced cellular damage and restoring physiological homeostasis. Through a comprehensive synthesis of recent advancements and current knowledge, this review underscores the necessity of further research to translate these findings into clinical applications. The ultimate goal is to harness the therapeutic potential of targeting cuproptosis, thereby improving disease management and patient outcomes in non-cancerous conditions associated with copper dysregulation.
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Affiliation(s)
- Zhibo Yang
- Department of Neurosurgery, 3201 Hospital of Xi'an Jiaotong University Health Science Center, Hanzhong, 723000, Shaanxi, China
| | - Ridong Feng
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine (FAHZU), 79 Qingchun Rd., Shangcheng District, Hangzhou, 330100, Zhejiang, China
| | - Hai Zhao
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao, 266005, Shandong, China.
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Guo H, Jing L, Xia C, Zhu Y, Xie Y, Ma X, Fang J, Wang Z, Zuo Z. Copper Promotes LPS-Induced Inflammation via the NF-кB Pathway in Bovine Macrophages. Biol Trace Elem Res 2024:10.1007/s12011-024-04107-6. [PMID: 38376728 DOI: 10.1007/s12011-024-04107-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/13/2024] [Indexed: 02/21/2024]
Abstract
Inflammation is a complex physiological process that enables the clearance of pathogens and repairing damaged tissues. Elevated serum copper concentration has been reported in cases of inflammation, but the role of copper in inflammatory responses remains unclear. This study used bovine macrophages to establish lipopolysaccharide (LPS)-induced inflammation model. There were five groups in the study: a group treated with LPS (100 ng/ml), a group treated with either copper chelator (tetrathiomolybdate, TTM) (20 μmol) or CuSO4 (25 μmol or 50 μmol) after LPS stimulation, and a control group. Copper concentrations increased in macrophages after the LPS treatment. TTM decreased mRNA expression of pro-inflammatory factors (IL-1β, TNF-α, IL-6, iNOS, and COX-2), whereas copper supplement increased them. Compared to the control group, TLP4 and MyD88 protein levels were increased in the TTM and copper groups. However, TTM treatment decreased p-p65 and increased IкB-α while the copper supplement showed reversed results. In addition, the phagocytosis and migration of bovine macrophages decreased in the TTM treatment group while increased in the copper treatment groups. Results mentioned above indicated that copper could promote the LPS-induced inflammatory response in bovine macrophages, promote pro-inflammatory factors by activating the NF-кB pathway, and increase phagocytosis capacity and migration. Our study provides a possible targeted therapy for bovine inflammation.
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Affiliation(s)
- Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China.
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, People's Republic of China.
| | - Lin Jing
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China
| | - Chenglong Xia
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China
| | - Yanqiu Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, People's Republic of China
| | - Yue Xie
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China
| | - Xiaoping Ma
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, People's Republic of China
| | - Zhisheng Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611134, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, People's Republic of China.
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, People's Republic of China.
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5
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Yang S, Li Y, Zhou L, Wang X, Liu L, Wu M. Copper homeostasis and cuproptosis in atherosclerosis: metabolism, mechanisms and potential therapeutic strategies. Cell Death Discov 2024; 10:25. [PMID: 38218941 PMCID: PMC10787750 DOI: 10.1038/s41420-023-01796-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/18/2023] [Accepted: 12/22/2023] [Indexed: 01/15/2024] Open
Abstract
Copper is an essential micronutrient that plays a pivotal role in numerous physiological processes in virtually all cell types. Nevertheless, the dysregulation of copper homeostasis, whether towards excess or deficiency, can lead to pathological alterations, such as atherosclerosis. With the advent of the concept of copper-induced cell death, termed cuproptosis, researchers have increasingly focused on the potential role of copper dyshomeostasis in atherosclerosis. In this review, we provide a broad overview of cellular and systemic copper metabolism. We then summarize the evidence linking copper dyshomeostasis to atherosclerosis and elucidate the potential mechanisms underlying atherosclerosis development in terms of both copper excess and copper deficiency. Furthermore, we discuss the evidence for and mechanisms of cuproptosis, discuss its interactions with other modes of cell death, and highlight the role of cuproptosis-related mitochondrial dysfunction in atherosclerosis. Finally, we explore the therapeutic strategy of targeting this novel form of cell death, aiming to provide some insights for the management of atherosclerosis.
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Affiliation(s)
- Shengjie Yang
- Guang'an men Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Yujuan Li
- Guang'an men Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Lijun Zhou
- Guang'an men Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Xinyue Wang
- Guang'an men Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Longtao Liu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Min Wu
- Guang'an men Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
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Ren H, Zheng J, Zhu Y, Wang L, Liu J, Xu H, Dong J, Zhang S. Comprehensive analysis of cuproptosis-related long non-coding RNAs in prognosis, immune microenvironment infiltration and chemotherapy response of hepatocellular carcinoma. Medicine (Baltimore) 2023; 102:e36611. [PMID: 38115286 PMCID: PMC10727658 DOI: 10.1097/md.0000000000036611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
The objective of this study is to explore the relationship between cuproptosis-related long noncoding RNAs (lncRNAs) in hepatocellular carcinoma (HCC). RNA-seq data, including lncRNAs and related clinical information of HCC patients, were downloaded from The Cancer Genome Atlas database. A signature composed 3 cuproptosis-related lncRNAs was constructed by LASSO analysis, and HCC patients were classified into high- and low-risk groups. Patients in the high-risk group had a poorer prognosis compared with the low-risk group. Univariate Cox and multivariate Cox regression analyses confirmed that the signature model was an independent risk factor compared to other clinical biomarkers. Furthermore, gene set enrichment analysis indicated that metabolism-related pathways were enriched in low-risk group, including drug metabolism, and fatty acid metabolism. Further research demonstrated that there were markedly differences in drug response between the high- and low-risk group. Immune related analysis showed that the most type of immune cells and immunological function in the high-risk group were different with the risk-group. Finally, TP53 mutation rate and the tumor mutational burden in the high-risk group were higher compared with the low-risk group. In conclusion, we constructed a prognostic signature based on the expression of cuproptosis-related lncRNAs to predict HCC patients' prognosis, drug response and immune microenvironment, and further research will be conducted to uncover the mechanisms.
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Affiliation(s)
- Huili Ren
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianglin Zheng
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhu
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Leiyun Wang
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianmin Liu
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongfeng Xu
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Junli Dong
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaohui Zhang
- Department of Pharmacy, Traditional Chinese and Western Medicine Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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7
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Qi H, Shi H, Yan M, Zhao L, Yin Y, Tan X, Qi H, Li H, Weng K, Tang Y, Dai Y. Ammonium tetrathiomolybdate relieves oxidative stress in cisplatin-induced acute kidney injury via NRF2 signaling pathway. Cell Death Discov 2023; 9:259. [PMID: 37491360 PMCID: PMC10368633 DOI: 10.1038/s41420-023-01564-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 07/10/2023] [Accepted: 07/18/2023] [Indexed: 07/27/2023] Open
Abstract
Cisplatin is an efficient chemotherapeutic agent for various solid tumors, but its usage is restricted by nephrotoxicity. A single dose of cisplatin can cause acute kidney injury (AKI), which is characterized by rapid reduction in kidney function. However, the current therapies, such as hydration, are limited. It is vital to develop novel therapeutic reagents that have both anticancer and renoprotective properties. The objective of this study was to determine whether ammonium tetrathiomolybdate (TM), a copper chelator used to treat cancer and disorders of copper metabolism, may offer protection against cisplatin-induced AKI. In this study, we demonstrated that TM treatment had antioxidative effects and mitigated cisplatin-induced AKI both in vivo and in vitro. Mechanically, TM inhibited NRF2 ubiquitination, which activated the NRF2 pathway in HK-2 cells and promoted the expression of target genes. It should be noted that the protective effect conferred by TM against cisplatin was compromised by the knockdown of the NRF2 gene. Furthermore, TM selectively activated the NRF2 pathways in the liver and kidney. The current study provided evidence for additional clinical applications of TM by showing that it activates NRF2 and has a favorable therapeutic impact on cisplatin-induced AKI.
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Affiliation(s)
- Hao Qi
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Haoyu Shi
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Minbo Yan
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Liangyu Zhao
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Yinghao Yin
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Xiaolin Tan
- Department of Clinical Nutrition, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Huiyue Qi
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Hu Li
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Kangqiang Weng
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Yuxin Tang
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Yingbo Dai
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China.
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China.
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8
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Chen YT, Xu XH, Lin L, Tian S, Wu GF. Identification of Three Cuproptosis-specific Expressed Genes as Diagnostic Biomarkers and Therapeutic Targets for Atherosclerosis. Int J Med Sci 2023; 20:836-848. [PMID: 37324184 PMCID: PMC10266043 DOI: 10.7150/ijms.83009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/18/2023] [Indexed: 06/17/2023] Open
Abstract
Atherosclerosis is a chronic, inflammatory disease characterized by a lipid-driven infiltration of inflammatory cells in large and medium arteries and is considered to be a major underlying cause of cardiovascular diseases. Cuproptosis, a novel form of cell death, is highly linked to mitochondrial metabolism and mediated by protein lipoylation. However, the clinical implication of cuproptosis-related genes (CRGs) in atherosclerosis remains unclear. In this study, genes collected from the GEO database intersected with CRGs were identified in atherosclerosis. GSEA, GO and KEGG pathway enrichment analyses were performed for functional annotation. Through the random forest algorithm and the construction of a protein-protein interaction (PPI) network, eight selected genes (LOXL2, SLC31A1, ATP7A, SLC31A2, COA6, UBE2D1, CP and SOD1) and a vital cuproptosis-related gene FDX1 were then further validated. Two independent datasets (GSE28829 (N = 29), GSE100927 (N = 104)) were collected to construct the signature of CRGs for validation in atherosclerosis. Consistently, the atherosclerosis plaques showed significantly higher expression of SLC31A1, SLC31A2 and lower expression of SOD1 than the normal intimae. The area under the curve (AUC) of SLC31A1, SLC31A2 and SOD1 performed well for the diagnostic validation in the two datasets. In conclusion, the cuproptosis-related gene signature could serve as a potential diagnostic biomarker for atherosclerosis and may offer novel insights into the treatment of cardiovascular diseases. Based on the hub genes, a competing endogenous RNA (ceRNA) network of lncRNA-miRNA-mRNA and a transcription factor regulation network were ultimately constructed to explore the possible regulatory mechanism in atherosclerosis.
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Affiliation(s)
- Yong-Tong Chen
- Department of Cardiology, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, China
- Guangdong Innovative Engineering and Technology Research Center for Assisted Circulation, Shenzhen, Guangdong 518033, China
- NHC Key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, Guangdong 510080, China
| | - Xuan-Hao Xu
- Department of Cardiology, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, China
- Guangdong Innovative Engineering and Technology Research Center for Assisted Circulation, Shenzhen, Guangdong 518033, China
- NHC Key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, Guangdong 510080, China
| | - Ling Lin
- Department of Radiology, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, China
| | - Shuai Tian
- Department of Cardiology, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, China
- Guangdong Innovative Engineering and Technology Research Center for Assisted Circulation, Shenzhen, Guangdong 518033, China
- NHC Key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, Guangdong 510080, China
| | - Gui-Fu Wu
- Department of Cardiology, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong 518033, China
- Guangdong Innovative Engineering and Technology Research Center for Assisted Circulation, Shenzhen, Guangdong 518033, China
- NHC Key Laboratory of Assisted Circulation (Sun Yat-sen University), Guangzhou, Guangdong 510080, China
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9
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Wang D, Tian Z, Zhang P, Zhen L, Meng Q, Sun B, Xu X, Jia T, Li S. The molecular mechanisms of cuproptosis and its relevance to cardiovascular disease. Biomed Pharmacother 2023; 163:114830. [PMID: 37150036 DOI: 10.1016/j.biopha.2023.114830] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 04/11/2023] [Accepted: 04/30/2023] [Indexed: 05/09/2023] Open
Abstract
Recently, cuproptosis has been demonstrated to be a new non-apototic cell death mode that is characterized by copper dependence and the regulation of mitochondrial respiration. Cuproptosis is distinct from known cell death modes such as apoptosis, necrosis, pyroptosis, or ferroptosis. Excessive copper induces cuproptosis by promoting protein toxic stress reactions via copper-dependent anomalous oligomerization of lipoylation proteins in the tricarboxylic acid (TCA) cycle and reducing iron-sulfur cluster protein levels. Ferredoxin1 (FDX1) promotes dihydrolipoyl transacetylase (DLAT) lipoacylation and abates iron-sulfur cluster proteins by reducing Cu2+ to Cu+, inducing cell death. Copper homeostasis depends on the copper transporter, and disturbances to this homeostasis cause cuproptosis. Recent evidence has shown that cuproptosis plays a significant role in the occurrence and development of many cardiovascular diseases, such as myocardial ischemia/reperfusion (I/R) injury, heart failure, atherosclerosis, and arrhythmias. Copper chelators, such as ammonium tetrathiomolybdate(VI) and DL-Penicillamine, may ease the above cardiovascular diseases by inhibiting the cuproptosis pathway. Oxidative phosphorylation inhibitors may inhibit cuproptosis by inhibiting protein stress response. In conclusion, cuproptosis plays an essential role in cardiovascular disease pathogenesis. Inhibition of cardiovascular cuproptosis is expected to become a potential treatment. Here, we will thoroughly review the molecular mechanisms involved in cuproptosis and its significance in cardiovascular disease.
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Affiliation(s)
- Di Wang
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhenyu Tian
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health. Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational. Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Peng Zhang
- Department of Urology, Zibo Hospital of Integrated Traditional Chinese and Western Medicine, Zibo, China
| | - Lv Zhen
- Department of Cardiology, Zibo First Hospital, Zibo, China
| | - Qingju Meng
- Department of Internal Medicine, Zoucheng Xiangcheng Town Health Center, Jining, China
| | - Benteng Sun
- Department of Primary and Secondary education, Qufu Mingde School, Jining, China
| | - Xingli Xu
- Ultrasound in Cardiac Electrophysiology and Biomechanics Key Laboratory of Sichuan Province, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Tong Jia
- Department of Geratology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan, China
| | - Shengqiang Li
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan, China.
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10
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Gaun S, Ali SA, Singh P, Patwa J, Flora SJS, Datusalia AK. Melatonin ameliorates chronic copper-induced lung injury. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:24949-24962. [PMID: 35359208 PMCID: PMC8970640 DOI: 10.1007/s11356-022-19930-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 03/23/2022] [Indexed: 05/08/2023]
Abstract
Copper (Cu) is an important trace element required for several biological processes. The use of copper is increasing gradually in several applications. Previous studies suggest that excess levels of copper are attributed to induce oxidative stress and inflammation, mediating tissue damage. Inline, melatonin the hormone of darkness has been reported to exhibit various therapeutic effects including strong free radical scavenging properties and anti-inflammatory effects. However, its effects against pulmonary injury promoted by copper are not explored and remain unclear so far. Therefore, the present study was aimed to investigate the protective effect of melatonin against copper-induced lung damage. Female Sprague Dawley (SD) rats were exposed to 250 ppm of copper in drinking water for 16 weeks and treated with melatonin (i.p.) 5 and 10 mg/kg from the week (13-16th). The extent of tissue damage was assessed by tissue oxidative stress parameters, metal estimation and histological analysis. Copper-challenged rats showed altered oxidative stress variables. In addition, metal analysis revealed increased copper accumulation in the lungs and histological staining results further indicated severe tissue injury and inflammatory cell infiltration in copper-exposed rats. To this side, treatment with melatonin showed antioxidant and anti-inflammatory activities evidenced by reduced oxidative stress, tissue inflammation and collagen deposition as compared to copper-exposed animals. Moreover, spectral findings suggested melatonin treatment modulated the frequency sift, as compared to copper-challenged animals. Altogether, the present results suggest that melatonin might play a potential role in preventing copper-induced lung aberrations via inhibiting the ROS-mediated oxidative stress and inflammation.
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Affiliation(s)
- Sachin Gaun
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India
| | - Syed Afroz Ali
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India
| | - Pooja Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India
| | - Jayant Patwa
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India
| | - Swaran Jeet Singh Flora
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India
| | - Ashok Kumar Datusalia
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India.
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research-Raebareli (NIPER-R), Transit campus, Lucknow, U.P., 226002, India.
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11
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Deng H, Zhu S, Yang H, Cui H, Guo H, Deng J, Ren Z, Geng Y, Ouyang P, Xu Z, Deng Y, Zhu Y. The Dysregulation of Inflammatory Pathways Triggered by Copper Exposure. Biol Trace Elem Res 2023; 201:539-548. [PMID: 35312958 DOI: 10.1007/s12011-022-03171-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/18/2022] [Indexed: 01/21/2023]
Abstract
Copper (Cu) is an essential micronutrient for both human and animals. However, excessive intake of copper will cause damage to organs and cells. Inflammation is a biological response that can be induced by various factors such as pathogens, damaged cells, and toxic compounds. Dysregulation of inflammatory responses are closely related to many chronic diseases. Recently, Cu toxicological and inflammatory effects have been investigated in various animal models and cells. In this review, we summarized the known effect of Cu on inflammatory responses and sum up the molecular mechanism of Cu-regulated inflammation. Excessive Cu exposure can modulate a huge number of cytokines in both directions, increase and/or decrease through a variety of molecular and cellular signaling pathways including nuclear factor kappa-B (NF-κB) pathway, mitogen-activated protein kinase (MAPKs) pathway, JAK-STAT (Janus Kinase- signal transducer and activator of transcription) pathway, and NOD-like receptor protein 3 (NLRP3) inflammasome. Underlying the molecular mechanism of Cu-regulated inflammation could help further understanding copper toxicology and copper-associated diseases.
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Affiliation(s)
- Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Song Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Huiru Yang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China.
- Key Laboratory of Agricultural Information Engineering of Sichuan Province, Sichuan Agriculture University, Yaan, 625014, Sichuan, China.
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China.
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China.
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Zhihua Ren
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Zhiwen Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Youtian Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Yanqiu Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
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12
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Mhaske A, Sharma S, Shukla R. Nanotheranostic: The futuristic therapy for copper mediated neurological sequelae. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Chen L, Min J, Wang F. Copper homeostasis and cuproptosis in health and disease. Signal Transduct Target Ther 2022; 7:378. [PMID: 36414625 PMCID: PMC9681860 DOI: 10.1038/s41392-022-01229-y] [Citation(s) in RCA: 325] [Impact Index Per Article: 162.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/19/2022] [Accepted: 10/11/2022] [Indexed: 11/24/2022] Open
Abstract
As an essential micronutrient, copper is required for a wide range of physiological processes in virtually all cell types. Because the accumulation of intracellular copper can induce oxidative stress and perturbing cellular function, copper homeostasis is tightly regulated. Recent studies identified a novel copper-dependent form of cell death called cuproptosis, which is distinct from all other known pathways underlying cell death. Cuproptosis occurs via copper binding to lipoylated enzymes in the tricarboxylic acid (TCA) cycle, which leads to subsequent protein aggregation, proteotoxic stress, and ultimately cell death. Here, we summarize our current knowledge regarding copper metabolism, copper-related disease, the characteristics of cuproptosis, and the mechanisms that regulate cuproptosis. In addition, we discuss the implications of cuproptosis in the pathogenesis of various disease conditions, including Wilson's disease, neurodegenerative diseases, and cancer, and we discuss the therapeutic potential of targeting cuproptosis.
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Affiliation(s)
- Liyun Chen
- grid.13402.340000 0004 1759 700XThe Fourth Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou, China ,grid.412017.10000 0001 0266 8918The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Junxia Min
- The Fourth Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou, China.
| | - Fudi Wang
- The Fourth Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou, China. .,The First Affiliated Hospital, Basic Medical Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China.
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14
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The Role of Copper Homeostasis in Brain Disease. Int J Mol Sci 2022; 23:ijms232213850. [PMID: 36430330 PMCID: PMC9698384 DOI: 10.3390/ijms232213850] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 11/12/2022] Open
Abstract
In the human body, copper is an important trace element and is a cofactor for several important enzymes involved in energy production, iron metabolism, neuropeptide activation, connective tissue synthesis, and neurotransmitter synthesis. Copper is also necessary for cellular processes, such as the regulation of intracellular signal transduction, catecholamine balance, myelination of neurons, and efficient synaptic transmission in the central nervous system. Copper is naturally present in some foods and is available as a dietary supplement. Only small amounts of copper are typically stored in the body and a large amount of copper is excreted through bile and urine. Given the critical role of copper in a breadth of cellular processes, local concentrations of copper and the cellular distribution of copper transporter proteins in the brain are important to maintain the steady state of the internal environment. The dysfunction of copper metabolism or regulatory pathways results in an imbalance in copper homeostasis in the brain, which can lead to a myriad of acute and chronic pathological effects on neurological function. It suggests a unique mechanism linking copper homeostasis and neuronal activation within the central nervous system. This article explores the relationship between impaired copper homeostasis and neuropathophysiological progress in brain diseases.
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Sangwan N, Knox DP, Suttle NF. Effects of Chronic Exposure to Molybdate and Tetrathiomolybdate Supplementation of Water on Immature Rats Acutely Infected with Nippostrongylus brasiliensis. 1. Effects on Outcome of Infection and Host Health. J Comp Pathol 2022; 198:22-28. [DOI: 10.1016/j.jcpa.2022.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/06/2022] [Accepted: 07/11/2022] [Indexed: 11/25/2022]
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16
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Suttle NF, Sangwan NP, Knox DP. Effects of Molybdate and Tetrathiomolybdate Supplementation of Drinking Water on Immature Rats Infected with Nippostrongylus brasiliensis. 2. Copper Status and Tissue Molybdenum Accretion. J Comp Pathol 2022; 198:80-88. [DOI: 10.1016/j.jcpa.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/10/2022] [Accepted: 08/25/2022] [Indexed: 11/05/2022]
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17
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Yin Y, Peng J, Zhou J, Chen H, Peng D, Li D, Gan Y, Yin G, Tang Y. Tetrathiomolybdate Partially Alleviates Erectile Dysfunction of Type 1 Diabetic Rats Through Affecting Ceruloplasmin/eNOS and Inhibiting Corporal Fibrosis and Systemic Inflammation. Sex Med 2021; 10:100455. [PMID: 34818604 PMCID: PMC8847815 DOI: 10.1016/j.esxm.2021.100455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Patients with erectile dysfunction induced by diabetes mellitus (DMED) show a poor effect rate for oral phosphodiesterase type 5 inhibitors (PDE5is). Therefore, the new therapeutic strategy is necessary in patients with DMED. AIM To investigate whether Tetrathiomolybdate (TM) supplementation could ameliorate DMED by activation of eNOS. METHODS Twenty-four diabetic rats were induced by intraperitoneal injection of streptozotocin (STZ) and the other 6 normal rats constituted the control group. Eight weeks later, the erectile function of rats was assessed with an apomorphine test. Only some rats with DMED were treated with TM orally every day for 4 weeks; the other rats remained in the same condition for 4 weeks. After 1 week washout, the erectile function of rats in each group was evaluated. Then, the serum concentration of IL-6 and histologic changes of corpus cavernosum were measured. MAIN OUTCOME MEASURE Erectile function was measured after DMED rats treated with TM. The cavernosum level of Ceruloplasmin (Cp), eNOS, endothelial cell content, corporal fibrosis, apoptosis rate and the serum level of IL-6 were also assayed. RESULTS Erectile function in the DMED group was significantly impaired compared with the control group and was partly, but significantly, improved in the DMED+TM group. The DMED group showed upregulation of Cp and inhibition of eNOS, but the inhibition was partly reversed in the DMED+TM group. The DMED group showed serious corporal fibrosis. However, TM supplementation partly increased the ratio of smooth muscle to collagen, decreased the ratio of apoptosis. What's more, gavage administration of TM profoundly decreased the serum level of IL-6 in DMED rats. CONCLUSION TM supplementation inhibits endothelial dysfunction, corporal fibrosis, and systemic inflammation, ultimately leading to partial improvement of DMED in rats. Yin Y, Peng J, Zhou J, et al., Tetrathiomolybdate Partially Alleviates Erectile Dysfunction of Type 1 Diabetic Rats Through Affecting Ceruloplasmin/eNOS and Inhibiting Corporal Fibrosis and Systemic Inflammation. Sex Med 2021;XX:XXXXXX.
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Affiliation(s)
- Yinghao Yin
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jingxuan Peng
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jun Zhou
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Hanfei Chen
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Dongyi Peng
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Dongjie Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Institute of Clinical Pharmacology, Central South University; Hunan Key Laboratory of Pharmacogenetics, Changsha, China; Xiangya International Medical Center, Department of Geriatric Urology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Yu Gan
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Guangming Yin
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, China.
| | - Yuxin Tang
- Department of Urology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China; Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
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Gromadzka G, Tarnacka B, Flaga A, Adamczyk A. Copper Dyshomeostasis in Neurodegenerative Diseases-Therapeutic Implications. Int J Mol Sci 2020; 21:E9259. [PMID: 33291628 PMCID: PMC7730516 DOI: 10.3390/ijms21239259] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/12/2022] Open
Abstract
Copper is one of the most abundant basic transition metals in the human body. It takes part in oxygen metabolism, collagen synthesis, and skin pigmentation, maintaining the integrity of blood vessels, as well as in iron homeostasis, antioxidant defense, and neurotransmitter synthesis. It may also be involved in cell signaling and may participate in modulation of membrane receptor-ligand interactions, control of kinase and related phosphatase functions, as well as many cellular pathways. Its role is also important in controlling gene expression in the nucleus. In the nervous system in particular, copper is involved in myelination, and by modulating synaptic activity as well as excitotoxic cell death and signaling cascades induced by neurotrophic factors, copper is important for various neuronal functions. Current data suggest that both excess copper levels and copper deficiency can be harmful, and careful homeostatic control is important. This knowledge opens up an important new area for potential therapeutic interventions based on copper supplementation or removal in neurodegenerative diseases including Wilson's disease (WD), Menkes disease (MD), Alzheimer's disease (AD), Parkinson's disease (PD), and others. However, much remains to be discovered, in particular, how to regulate copper homeostasis to prevent neurodegeneration, when to chelate copper, and when to supplement it.
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Affiliation(s)
- Grażyna Gromadzka
- Collegium Medicum, Faculty of Medicine, Cardinal Stefan Wyszynski University, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;
| | - Beata Tarnacka
- Department of Rehabilitation, Eleonora Reicher National Institute of Geriatrics, Rheumatology and Rehabilitation, Rehabilitation Clinic, Medical University of Warsaw, Spartańska 1 Street, 02-637 Warsaw, Poland;
| | - Anna Flaga
- Collegium Medicum, Faculty of Medicine, Cardinal Stefan Wyszynski University, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;
| | - Agata Adamczyk
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, 02-106 Warsaw, Poland;
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19
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Schwarz M, Lossow K, Schirl K, Hackler J, Renko K, Kopp JF, Schwerdtle T, Schomburg L, Kipp AP. Copper interferes with selenoprotein synthesis and activity. Redox Biol 2020; 37:101746. [PMID: 33059313 PMCID: PMC7567034 DOI: 10.1016/j.redox.2020.101746] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 12/19/2022] Open
Abstract
Selenium and copper are essential trace elements for humans, needed for the biosynthesis of enzymes contributing to redox homeostasis and redox-dependent signaling pathways. Selenium is incorporated as selenocysteine into the active site of redox-relevant selenoproteins including glutathione peroxidases (GPX) and thioredoxin reductases (TXNRD). Copper-dependent enzymes mediate electron transfer and other redox reactions. As selenoprotein expression can be modulated e.g. by H2O2, we tested the hypothesis that copper status affects selenoprotein expression. To this end, hepatocarcinoma HepG2 cells and mice were exposed to a variable copper and selenium supply in a physiologically relevant concentration range, and transcript and protein expression as well as GPX and TXNRD activities were compared. Copper suppressed selenoprotein mRNA levels of GPX1 and SELENOW, downregulated GPX and TXNRD activities and decreased UGA recoding efficiency in reporter cells. The interfering effects were successfully suppressed by applying the copper chelators bathocuproinedisulfonic acid or tetrathiomolybdate. In mice, a decreased copper supply moderately decreased the copper status and negatively affected hepatic TXNRD activity. We conclude that there is a hitherto unknown interrelationship between copper and selenium status, and that copper negatively affects selenoprotein expression and activity most probably via limiting UGA recoding. This interference may be of physiological relevance during aging, where a particular shift in the selenium to copper ratio has been reported. An increased concentration of copper in face of a downregulated selenoprotein expression may synergize and negatively affect the cellular redox homeostasis contributing to disease processes.
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Affiliation(s)
- Maria Schwarz
- Department of Molecular Nutritional Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, 07743, Germany; TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany
| | - Kristina Lossow
- Department of Molecular Nutritional Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, 07743, Germany; TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany; German Institute of Human Nutrition, Nuthetal, 14558, Germany
| | - Katja Schirl
- Department of Molecular Nutritional Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, 07743, Germany
| | - Julian Hackler
- TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany; Institute for Experimental Endocrinology, Charité - University Medical School Berlin, Berlin, 13353, Germany
| | - Kostja Renko
- Institute for Experimental Endocrinology, Charité - University Medical School Berlin, Berlin, 13353, Germany; German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Johannes Florian Kopp
- TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany; Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany
| | - Tanja Schwerdtle
- TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany; German Federal Institute for Risk Assessment (BfR), Berlin, Germany; Department of Food Chemistry, Institute of Nutritional Science, University of Potsdam, Nuthetal, 14558, Germany
| | - Lutz Schomburg
- TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany; Institute for Experimental Endocrinology, Charité - University Medical School Berlin, Berlin, 13353, Germany
| | - Anna Patricia Kipp
- Department of Molecular Nutritional Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, 07743, Germany; TraceAge-DFG Research Unit on Interactions of Essential Trace Elements in Healthy and Diseased Elderly, Potsdam-Berlin-Jena, Germany.
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20
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Li L, Huang L, Huang S, Luo X, Zhang H, Mo Z, Wu T, Yang X. Non-linear association of serum molybdenum and linear association of serum zinc with nonalcoholic fatty liver disease: Multiple-exposure and Mendelian randomization approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 720:137655. [PMID: 32146412 DOI: 10.1016/j.scitotenv.2020.137655] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/27/2020] [Accepted: 02/29/2020] [Indexed: 06/10/2023]
Abstract
The homeostasis imbalance of metals is closely associated with nonalcoholic fatty liver disease (NAFLD). A total of 1594 and 566 Chinese Han men were enrolled in cross-sectional and longitudinal analyses, respectively. We measured the serum concentrations of 22 metals by ICP-MS. The traditional and the LASSO regression methods were used to construct multiple-metals models, respectively. We performed Mendelian randomization (MR) analysis to confirm the causal relationship between NAFLD and metals using three NAFLD-related SNPs as instrumental variable. After adjustment in the six-metal model, only depressed molybdenum and elevated zinc were associated with a higher NAFLD risk, in both cross-sectional and longitudinal analyses. In the twelve-metal model, similar results were still observed. Moreover, dose-response relationships were non-linear for molybdenum and positively linear for zinc with NAFLD risk. In MR analysis, no causal associations were found from NAFLD to molybdenum and zinc. Our results support that serum molybdenum levels were non-linearly associated with NAFLD risk in Chinese men, whereas serum zinc levels showed a positively linear association. Moreover, MR analysis indicated the changes in serum molybdenum and zinc levels might be not caused by NAFLD, further confirmed our findings in cross-sectional and longitudinal analyses.
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Affiliation(s)
- Longman Li
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Lulu Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Sifang Huang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Xiaoyu Luo
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Haiying Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Zengnan Mo
- Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China; Institute of Urology and Nephrology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Tangchun Wu
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Xiaobo Yang
- Department of Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Center for Genomic and Personalized Medicine, Guangxi Medical University, Nanning, Guangxi, China.
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21
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Mendonça BP, Cardoso JDS, Michels M, Vieira AC, Wendhausen D, Manfredini A, Singer M, Dal-Pizzol F, Dyson A. Neuroprotective effects of ammonium tetrathiomolybdate, a slow-release sulfide donor, in a rodent model of regional stroke. Intensive Care Med Exp 2020; 8:13. [PMID: 32274608 PMCID: PMC7145883 DOI: 10.1186/s40635-020-00300-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/23/2020] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Several therapeutic strategies to rescue the brain from ischemic injury have improved outcomes after stroke; however, there is no treatment as yet for reperfusion injury, the secondary damage caused by necessary revascularization. Recently we characterized ammonium tetrathiomolybdate (ATTM), a drug used as a copper chelator over many decades in humans, as a new class of sulfide donor that shows efficacy in preclinical injury models. We hypothesized that ATTM could confer neuroprotection in a relevant rodent model of regional stroke. METHODS AND RESULTS Brain ischemia was induced by transient (90-min) middle cerebral artery occlusion (tMCAO) in anesthetized Wistar rats. To mimic a clinical scenario, ATTM (or saline) was administered intravenously just prior to reperfusion. At 24 h or 7 days post-reperfusion, rats were assessed using functional (rotarod test, spontaneous locomotor activity), histological (infarct size), and molecular (anti-oxidant enzyme capacity, oxidative damage, and inflammation) outcome measurements. ATTM-treated animals showed improved functional activity at both 24 h and 7-days post-reperfusion, in parallel with a significant reduction in infarct size. These effects were additionally associated with increased brain antioxidant enzyme capacity, decreased oxidative damage, and a late (7-day) effect on pro-inflammatory cytokine levels and nitric oxide products. CONCLUSION ATTM confers significant neuroprotection that, along with its known safety profile in humans, provides encouragement for its development as a novel adjunct therapy for revascularization following stroke.
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Affiliation(s)
- Bruna Pescador Mendonça
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil
| | | | - Monique Michels
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil
| | - Ana Carolina Vieira
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil
| | - Diogo Wendhausen
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil
| | - Andressa Manfredini
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil
| | - Mervyn Singer
- Bloomsbury Institute for Intensive Care Medicine, Division of Medicine, University College London, Gower St, London, WC1E 6BT, UK
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil
| | - Alex Dyson
- Laboratory of Experimental Pathophysiology, University of Southern Santa Catarina, Criciúma, Brazil. .,Bloomsbury Institute for Intensive Care Medicine, Division of Medicine, University College London, Gower St, London, WC1E 6BT, UK.
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22
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Esposito R, Vllahu M, Morello S, Baldantoni D, Bellino A, Petrella A, Eletto D, Porta A, Tosco A. Low copper availability limits Helicobacter infection in mice. FEBS J 2019; 287:2948-2960. [PMID: 31863621 DOI: 10.1111/febs.15188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 12/06/2019] [Accepted: 12/18/2019] [Indexed: 12/14/2022]
Abstract
Copper is an essential element for all living organisms; however, it becomes toxic at high concentrations due to its ability to participate in many redox reactions. This vital micronutrient balance plays an important role in the battle between host and pathogen, due to its use by the host to intoxicate pathogens. In this study, we explore the effects of copper deprivation on Helicobacter infection in mice using the copper chelator tetrathiomolybdate. Our results reveal that Helicobacter infection significantly reduces copper concentration in mice stomachs without affecting its circulating levels. Moreover, in copper-deprived mice, bacteria hardly colonize the epithelium and mice show less gastric damage in comparison with the infected ones. However, when the copper chelator is administered after infection, the condition of the mouse stomachs declines. This could be explained by the lower copper availability in tetrathiomolybdate-treated mice, which would reduce macrophages' action against the pathogen. In this scenario, we observe that the protective factor trefoil factor 1 is induced upon copper-deprived conditions, probably contributing to the inefficacy of infection, whereas, when the chelator is administered after infection, the gene is already silenced by bacteria and cannot be restored. In conclusion, our data suggest that Helicobacter takes advantage of gastric copper reducing its availability for the host and that copper levels have an impact on the outcome of infection.
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Affiliation(s)
| | - Megi Vllahu
- Department of Pharmacy, University of Salerno, Fisciano, Italy.,PhD Program in Drug Discovery and Development, University of Salerno, Fisciano, Italy
| | - Silvana Morello
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | - Daniela Baldantoni
- Department of Chemistry and Biology, University of Salerno, Fisciano, Italy
| | - Alessandro Bellino
- Department of Chemistry and Biology, University of Salerno, Fisciano, Italy
| | | | - Daniela Eletto
- Department of Pharmacy, University of Salerno, Fisciano, Italy
| | - Amalia Porta
- Department of Pharmacy, University of Salerno, Fisciano, Italy
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23
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Sudhahar V, Das A, Horimatsu T, Ash D, Leanhart S, Antipova O, Vogt S, Singla B, Csanyi G, White J, Kaplan JH, Fulton D, Weintraub NL, Kim HW, Ushio-Fukai M, Fukai T. Copper Transporter ATP7A (Copper-Transporting P-Type ATPase/Menkes ATPase) Limits Vascular Inflammation and Aortic Aneurysm Development: Role of MicroRNA-125b. Arterioscler Thromb Vasc Biol 2019; 39:2320-2337. [PMID: 31554420 DOI: 10.1161/atvbaha.119.313374] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Copper (Cu) is essential micronutrient, and its dysregulation is implicated in aortic aneurysm (AA) development. The Cu exporter ATP7A (copper-transporting P-type ATPase/Menkes ATPase) delivers Cu via the Cu chaperone Atox1 (antioxidant 1) to secretory Cu enzymes, such as lysyl oxidase, and excludes excess Cu. Lysyl oxidase is shown to protect against AA formation. However, the role and mechanism of ATP7A in AA pathogenesis remain unknown. Approach and Results: Here, we show that Cu chelator markedly inhibited Ang II (angiotensin II)-induced abdominal AA (AAA) in which ATP7A expression was markedly downregulated. Transgenic ATP7A overexpression prevented Ang II-induced AAA formation. Conversely, Cu transport dysfunctional ATP7Amut/+/ApoE-/- mice exhibited robust AAA formation and dissection, excess aortic Cu accumulation as assessed by X-ray fluorescence microscopy, and reduced lysyl oxidase activity. In contrast, AAA formation was not observed in Atox1-/-/ApoE-/- mice, suggesting that decreased lysyl oxidase activity, which depends on both ATP7A and Atox1, was not sufficient to develop AAA. Bone marrow transplantation suggested importance of ATP7A in vascular cells, not bone marrow cells, in AAA development. MicroRNA (miR) array identified miR-125b as a highly upregulated miR in AAA from ATP7Amut/+/ApoE-/- mice. Furthermore, miR-125b target genes (histone methyltransferase Suv39h1 and the NF-κB negative regulator TNFAIP3 [tumor necrosis factor alpha induced protein 3]) were downregulated, which resulted in increased proinflammatory cytokine expression, aortic macrophage recruitment, MMP (matrix metalloproteinase)-2/9 activity, elastin fragmentation, and vascular smooth muscle cell loss in ATP7Amut/+/ApoE-/- mice and reversed by locked nucleic acid-anti-miR-125b infusion. CONCLUSIONS ATP7A downregulation/dysfunction promotes AAA formation via upregulating miR-125b, which augments proinflammatory signaling in a Cu-dependent manner. Thus, ATP7A is a potential therapeutic target for inflammatory vascular disease.
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Affiliation(s)
- Varadarajan Sudhahar
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Pharmacology and Toxicology (V.S., A.D., B.S., G.C., D.F., T.F.), Medical College of Georgia at Augusta University, GA.,Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., S.L., T.F.)
| | - Archita Das
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Pharmacology and Toxicology (V.S., A.D., B.S., G.C., D.F., T.F.), Medical College of Georgia at Augusta University, GA
| | - Tetsuo Horimatsu
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Medicine (Cardiology) (T.H., D.A., N.L.W., H.W.K., M.U.-F.), Medical College of Georgia at Augusta University, GA
| | - Dipankar Ash
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Medicine (Cardiology) (T.H., D.A., N.L.W., H.W.K., M.U.-F.), Medical College of Georgia at Augusta University, GA
| | - Silvia Leanhart
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., S.L., T.F.)
| | - Olga Antipova
- X-ray Science Division, Argonne National Laboratory, IL (O.A., S.V.)
| | - Stefan Vogt
- X-ray Science Division, Argonne National Laboratory, IL (O.A., S.V.)
| | - Bhupesh Singla
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Pharmacology and Toxicology (V.S., A.D., B.S., G.C., D.F., T.F.), Medical College of Georgia at Augusta University, GA
| | - Gabor Csanyi
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Pharmacology and Toxicology (V.S., A.D., B.S., G.C., D.F., T.F.), Medical College of Georgia at Augusta University, GA
| | - Joseph White
- Department of Pathology (J.W.), Medical College of Georgia at Augusta University, GA
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago (J.H.K.)
| | - David Fulton
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Pharmacology and Toxicology (V.S., A.D., B.S., G.C., D.F., T.F.), Medical College of Georgia at Augusta University, GA
| | - Neal L Weintraub
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Medicine (Cardiology) (T.H., D.A., N.L.W., H.W.K., M.U.-F.), Medical College of Georgia at Augusta University, GA
| | - Ha Won Kim
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Medicine (Cardiology) (T.H., D.A., N.L.W., H.W.K., M.U.-F.), Medical College of Georgia at Augusta University, GA
| | - Masuko Ushio-Fukai
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Medicine (Cardiology) (T.H., D.A., N.L.W., H.W.K., M.U.-F.), Medical College of Georgia at Augusta University, GA
| | - Tohru Fukai
- From the Vascular Biology Center (V.S., A.D., T.H., D.A., S.L., B.S., G.C., D.F., N.L.W., H.W.K., M.U.-F., T.F.), Medical College of Georgia at Augusta University, GA.,Department of Pharmacology and Toxicology (V.S., A.D., B.S., G.C., D.F., T.F.), Medical College of Georgia at Augusta University, GA.,Charlie Norwood Veterans Affairs Medical Center, Augusta, GA (V.S., S.L., T.F.)
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24
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Das A, Sudhahar V, Ushio-Fukai M, Fukai T. Novel interaction of antioxidant-1 with TRAF4: role in inflammatory responses in endothelial cells. Am J Physiol Cell Physiol 2019; 317:C1161-C1171. [PMID: 31553645 DOI: 10.1152/ajpcell.00264.2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
NADPH oxidase (NOX)-derived reactive oxygen species (ROS) and copper (Cu), an essential micronutrient, have been implicated in vascular inflammatory diseases. We reported that in proinflammatory cytokine TNF-α-stimulated endothelial cells (ECs), cytosolic Cu chaperone antioxidant-1 (Atox1) functions as a Cu-dependent transcription factor for the NOX organizer p47phox, thereby increasing ROS-dependent inflammatory gene expression. However, the role and mechanism of Atox1 nuclear translocation in inflamed ECs remain unclear. Using enface staining and nuclear fractionation, here we show that Atox1 was localized in the nucleus in inflamed aortas from ApoE-/- mice with angiotensin II infusion on a high-fat diet, while it was found in cytosol in those from control mice. In cultured human ECs, TNF-α stimulation promoted Atox1 nuclear translocation within 15 min, which was associated with Atox1 binding to TNF-α receptor-associated factor 4 (TRAF4) in a Cu-dependent manner. TRAF4 depletion by siRNA significantly inhibited Atox1 nuclear translocation, p47phox expression, and ROS production as well as its downstream VCAM1/ICAM1 expression and monocyte adhesion to inflamed ECs, which were rescued by overexpression of nuclear targeted Atox1. Furthermore, Atox1 colocalized with TRAF4 at the nucleus in TNF-α-stimulated inflamed ECs and vessels. In summary, Cu-dependent Atox1 binding to TRAF4 plays an important role in Atox1 nuclear translocation and ROS-dependent inflammatory responses in TNF-α-stimulated ECs. Thus the Atox1-TRAF4 axis is a novel therapeutic target for vascular inflammatory disease such as atherosclerosis.
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Affiliation(s)
- Archita Das
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Varadarajan Sudhahar
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, Georgia
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
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25
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Chen G, Niu C, Yi J, Sun L, Cao H, Fang Y, Jin T, Li Y, Lou C, Kang J, Wei W, Zhu J. Novel Triapine Derivative Induces Copper-Dependent Cell Death in Hematopoietic Cancers. J Med Chem 2019; 62:3107-3121. [PMID: 30835473 DOI: 10.1021/acs.jmedchem.8b01996] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Triapine, an iron chelator that inhibits ribonucleotide reductase, has been evaluated in clinical trials for cancer treatment. Triapine in combination with other chemotherapeutic agents shows promising efficacy in certain hematologic malignancies; however, it is less effective against many advanced solid tumors, probably due to the unsatisfactory potency and pharmacokinetic properties. In this report, we developed a triapine derivative IC25 (10) with potent antitumor activity. 10 Preferentially inhibited the proliferation of hematopoietic cancers by inducing mitochondria reactive oxygen species production and mitochondrial dysfunction. Unlike triapine, 10 executed cytotoxic action in a copper-dependent manner. 10-Induced up-expression of thioredoxin-interacting protein resulted in decreased thioredoxin activity to permit c-Jun N-terminal kinase and p38 activation and ultimately led to the execution of the cell death program. Remarkedly, 10 showed good bioavailability and inhibited tumor growth in mouse xenograft models. Taken together, our study identifies compound 10 as a copper-dependent antitumor agent, which may be applied to the treatment of hematopoietic cancers.
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Affiliation(s)
- Ge Chen
- CAS Center for Excellence in Molecular Cell Science , Shanghai Institutes of Biochemistry and Cell Biology, Chinese Academy of Sciences , Shanghai 200031 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | | | | | - Hengyi Cao
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | - Taijie Jin
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | | | | | | | - Wanguo Wei
- Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201210 , China
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26
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Englinger B, Pirker C, Heffeter P, Terenzi A, Kowol CR, Keppler BK, Berger W. Metal Drugs and the Anticancer Immune Response. Chem Rev 2018; 119:1519-1624. [DOI: 10.1021/acs.chemrev.8b00396] [Citation(s) in RCA: 174] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bernhard Englinger
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Christine Pirker
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Petra Heffeter
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
- Research Cluster “Translational Cancer Therapy Research”, University of Vienna and Medical University of Vienna, Vienna, Austria
| | - Alessio Terenzi
- Research Cluster “Translational Cancer Therapy Research”, University of Vienna and Medical University of Vienna, Vienna, Austria
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, A-1090 Vienna, Austria
| | - Christian R. Kowol
- Research Cluster “Translational Cancer Therapy Research”, University of Vienna and Medical University of Vienna, Vienna, Austria
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, A-1090 Vienna, Austria
| | - Bernhard K. Keppler
- Research Cluster “Translational Cancer Therapy Research”, University of Vienna and Medical University of Vienna, Vienna, Austria
- Institute of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 42, A-1090 Vienna, Austria
| | - Walter Berger
- Institute of Cancer Research and Comprehensive Cancer Center, Department of Medicine I, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
- Research Cluster “Translational Cancer Therapy Research”, University of Vienna and Medical University of Vienna, Vienna, Austria
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27
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Choo XY, Liddell JR, Huuskonen MT, Grubman A, Moujalled D, Roberts J, Kysenius K, Patten L, Quek H, Oikari LE, Duncan C, James SA, McInnes LE, Hayne DJ, Donnelly PS, Pollari E, Vähätalo S, Lejavová K, Kettunen MI, Malm T, Koistinaho J, White AR, Kanninen KM. Cu II(atsm) Attenuates Neuroinflammation. Front Neurosci 2018; 12:668. [PMID: 30319344 PMCID: PMC6165894 DOI: 10.3389/fnins.2018.00668] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 09/05/2018] [Indexed: 12/31/2022] Open
Abstract
Background: Neuroinflammation and biometal dyshomeostasis are key pathological features of several neurodegenerative diseases, including Alzheimer’s disease (AD). Inflammation and biometals are linked at the molecular level through regulation of metal buffering proteins such as the metallothioneins. Even though the molecular connections between metals and inflammation have been demonstrated, little information exists on the effect of copper modulation on brain inflammation. Methods: We demonstrate the immunomodulatory potential of the copper bis(thiosemicarbazone) complex CuII(atsm) in an neuroinflammatory model in vivo and describe its anti-inflammatory effects on microglia and astrocytes in vitro. Results: By using a sophisticated in vivo magnetic resonance imaging (MRI) approach, we report the efficacy of CuII(atsm) in reducing acute cerebrovascular inflammation caused by peripheral administration of bacterial lipopolysaccharide (LPS). CuII(atsm) also induced anti-inflammatory outcomes in primary microglia [significant reductions in nitric oxide (NO), monocyte chemoattractant protein 1 (MCP-1), and tumor necrosis factor (TNF)] and astrocytes [significantly reduced NO, MCP-1, and interleukin 6 (IL-6)] in vitro. These anti-inflammatory actions were associated with increased cellular copper levels and increased the neuroprotective protein metallothionein-1 (MT1) in microglia and astrocytes. Conclusion: The beneficial effects of CuII(atsm) on the neuroimmune system suggest copper complexes are potential therapeutics for the treatment of neuroinflammatory conditions.
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Affiliation(s)
- Xin Yi Choo
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia.,Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia.,Department of Pharmacology and Therapeutics, The University of Melbourne, Melbourne, VIC, Australia
| | - Jeffrey R Liddell
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia.,Department of Pharmacology and Therapeutics, The University of Melbourne, Melbourne, VIC, Australia
| | - Mikko T Huuskonen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Alexandra Grubman
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia.,Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia.,Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
| | - Diane Moujalled
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia
| | - Jessica Roberts
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia
| | - Kai Kysenius
- Department of Pharmacology and Therapeutics, The University of Melbourne, Melbourne, VIC, Australia.,Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
| | - Lauren Patten
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia
| | - Hazel Quek
- Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Lotta E Oikari
- Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Clare Duncan
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia
| | - Simon A James
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia.,Australian Synchrotron, Clayton, VIC, Australia
| | - Lachlan E McInnes
- School of Chemistry, Bio21 Institute for Molecular Science and Biotechnology, The University of Melbourne, Melbourne, VIC, Australia
| | - David J Hayne
- School of Chemistry, Bio21 Institute for Molecular Science and Biotechnology, The University of Melbourne, Melbourne, VIC, Australia
| | - Paul S Donnelly
- School of Chemistry, Bio21 Institute for Molecular Science and Biotechnology, The University of Melbourne, Melbourne, VIC, Australia
| | - Eveliina Pollari
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Suvi Vähätalo
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Katarína Lejavová
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Mikko I Kettunen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Tarja Malm
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jari Koistinaho
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.,Neuroscience Center, University of Helsinki, Helsinki, Finland
| | - Anthony R White
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia.,Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Katja M Kanninen
- Department of Pathology, The University of Melbourne, Melbourne, VIC, Australia.,A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
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28
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Fukai T, Ushio-Fukai M, Kaplan JH. Copper transporters and copper chaperones: roles in cardiovascular physiology and disease. Am J Physiol Cell Physiol 2018; 315:C186-C201. [PMID: 29874110 DOI: 10.1152/ajpcell.00132.2018] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Copper (Cu) is an essential micronutrient but excess Cu is potentially toxic. Its important propensity to cycle between two oxidation states accounts for its frequent presence as a cofactor in many physiological processes through Cu-containing enzymes, including mitochondrial energy production (via cytochrome c-oxidase), protection against oxidative stress (via superoxide dismutase), and extracellular matrix stability (via lysyl oxidase). Since free Cu is potentially toxic, the bioavailability of intracellular Cu is tightly controlled by Cu transporters and Cu chaperones. Recent evidence reveals that these Cu transport systems play an essential role in the physiological responses of cardiovascular cells, including cell growth, migration, angiogenesis and wound repair. In response to growth factors, cytokines, and hypoxia, their expression, subcellular localization, and function are tightly regulated. Cu transport systems and their regulators have also been linked to various cardiovascular pathophysiologies such as hypertension, inflammation, atherosclerosis, diabetes, cardiac hypertrophy, and cardiomyopathy. A greater appreciation of the central importance of Cu transporters and Cu chaperones in cell signaling and gene expression in cardiovascular biology offers the possibility of identifying new therapeutic targets for cardiovascular disease.
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Affiliation(s)
- Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University , Augusta, Georgia.,Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University , Augusta, Georgia.,Charlie Norwood Veterans Affairs Medical Center , Augusta Georgia
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University , Augusta, Georgia.,Department of Medicine (Cardiology), Medical College of Georgia at Augusta University , Augusta, Georgia
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine , Chicago, Illinois
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29
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Wang Z, Zhang YH, Guo C, Gao HL, Zhong ML, Huang TT, Liu NN, Guo RF, Lan T, Zhang W, Wang ZY, Zhao P. Tetrathiomolybdate Treatment Leads to the Suppression of Inflammatory Responses through the TRAF6/NFκB Pathway in LPS-Stimulated BV-2 Microglia. Front Aging Neurosci 2018. [PMID: 29535623 PMCID: PMC5835334 DOI: 10.3389/fnagi.2018.00009] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Although the positive relationship between copper and Alzheimer's disease (AD) was reported by a lot of epidemiological data, the mechanism is not completely known. Copper is a redox metal and serves as a mediator of inflammation. Because the homeostasis of copper is altered in Aβ precursor protein (APP) and presenilin 1 (PS1) transgenic (Tg) mice, the using of copper chelators is a potential therapeutic strategy for AD. Here we report that a copper chelator, tetrathiomolybdate (TM), is a potential therapeutic drug of AD. We investigated whether TM treatment led to a decrease of pro-inflammatory cytokines in vivo and in vitro, and found that TM treatment reduced the expression of iNOS and TNF-α in APP/PS1 Tg mice through up-regulating superoxide dismutase 1 (SOD1) activity. In vitro, once stimulated, microglia secretes a variety of proinflammatory cytokines, so we utilized LPS-stimulated BV-2 cells as the inflammatory cell model to detect the anti-inflammatory effects of TM. Our results indicated that TM-pretreatment suppressed the ubiquitination of TRAF6 and the activation of NFκB without affecting the expression of TLR4 and Myd88 in vitro. By detecting the activity of SOD1 and the production of reactive oxygen species (ROS), we found that the anti-inflammatory effects of TM could be attributed to its ability to reduce the amount of intracellular bioavailable copper, and the production of ROS which is an activator of the TRAF6 auto-ubiquitination. Hence, our results revealed that TM-treatment could reduce the production of inflammatory cytokines by the suppression of ROS/TRAF6/AKT/NFκB signaling pathway.
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Affiliation(s)
- Zhuo Wang
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Ya-Hong Zhang
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Chuang Guo
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Hui-Ling Gao
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Man-Li Zhong
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Ting-Ting Huang
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Na-Na Liu
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Rui-Fang Guo
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Tian Lan
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Wei Zhang
- Department of Hepatobiliary Surgery, General Hospital of Shenyang Military Area Command, Shenyang, China
| | - Zhan-You Wang
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Pu Zhao
- Department of Neurobiology, College of Life and Health Sciences, Northeastern University, Shenyang, China
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Golizeh M, Lee K, Ilchenko S, Ösme A, Bena J, Sadygov RG, Kashyap SR, Kasumov T. Increased serotransferrin and ceruloplasmin turnover in diet-controlled patients with type 2 diabetes. Free Radic Biol Med 2017; 113:461-469. [PMID: 29079528 PMCID: PMC5739305 DOI: 10.1016/j.freeradbiomed.2017.10.373] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/22/2017] [Accepted: 10/22/2017] [Indexed: 01/07/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is associated with oxidative stress and perturbed iron metabolism. Serotransferrin (Trf) and ceruloplasmin (Cp) are two key proteins involved in iron metabolism and anti-oxidant defense. Non-enzymatic glycation and oxidative modification of plasma proteins are known to occur under hyperglycemia and oxidative stress. In this study, shotgun proteomics and 2H2O-based metabolic labeling were used to characterize post-translational modifications and assess the kinetics of Trf and Cp in T2DM patients and matched controls in vivo. Six early lysine (Amadori) and one advanced arginine glycation were detected in Trf. No glycation, but five asparagine deamidations, were found in Cp. T2DM patients had increased fractional catabolic rates of both Trf and Cp that correlated with HbA1c (p < 0.05). The glycated Trf population was subject to an even faster degradation compared to the total Trf pool, suggesting that hyperglycemia contributed to an increased Trf degradation in T2DM patients. Enhanced production of Trf and Cp kept their levels stable. The changes in Trf and Cp turnover were associated with increased systemic oxidative stress without any alteration in iron status in T2DM. These findings can help better understand the potential role of altered Trf and Cp metabolism in the pathogenesis of T2DM and other diseases.
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Affiliation(s)
- Makan Golizeh
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States
| | - Kwangwon Lee
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States
| | - Serguei Ilchenko
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States
| | - Abdullah Ösme
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States
| | - James Bena
- Section of Biostatistics, Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, United States
| | - Rovshan G Sadygov
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, United States
| | - Sangeeta R Kashyap
- Department of Endocrinology, Cleveland Clinic, Cleveland, OH, United States
| | - Takhar Kasumov
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States; Department of Endocrinology, Cleveland Clinic, Cleveland, OH, United States.
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Jurowski K, Kochan K, Walczak J, Barańska M, Piekoszewski W, Buszewski B. Analytical Techniques in Lipidomics: State of the Art. Crit Rev Anal Chem 2017; 47:418-437. [PMID: 28340309 DOI: 10.1080/10408347.2017.1310613] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Current studies related to lipid identification and determination, or lipidomics in biological samples, are one of the most important issues in modern bioanalytical chemistry. There are many articles dedicated to specific analytical strategies used in lipidomics in various kinds of biological samples. However, in such literature, there is a lack of articles dedicated to a comprehensive review of the actual analytical methodologies used in lipidomics. The aim of this article is to characterize the lipidomics methods used in modern bioanalysis according to the methodological point of view: (1) chromatography/separation methods, (2) spectroscopic methods and (3) mass spectrometry and also hyphenated methods. In the first part, we discussed thin layer chromatography (TLC), high-pressure liquid chromatography (HPLC), gas chromatography (GC) and capillary electrophoresis (CE). The second part includes spectroscopic techniques such as Raman spectroscopy (RS), Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance (NMR). The third part is a synthetic review of mass spectrometry, matrix-assisted laser desorption/ionization (MALDI), hyphenated methods, which include liquid chromatography-mass spectrometry (LC-MS), gas chromatography-mass spectrometry (GC-MS) and also multidimensional techniques. Other aspects are the possibilities of the application of the described methods in lipidomics studies. Due to the fact that the exploration of new methods of lipidomics analysis and their applications in clinical and medical studies are still challenging for researchers working in life science, we hope that this review article will be very useful for readers.
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Affiliation(s)
- Kamil Jurowski
- a Kraków Higher School of Health Promotion , Krakow , Poland
| | - Kamila Kochan
- b Jagiellonian Centre for Experimental Therapeutics (JCET) , Jagiellonian University in Cracow , Cracow , Poland.,c Centre for Biospectroscopy and School of Chemistry , Monash University , Clayton , Victoria , Australia
| | - Justyna Walczak
- d Department of Environmental Chemistry and Bioanalytics , Faculty of Chemistry, Nicolaus Copernicus University , Torun , Poland
| | - Małgorzata Barańska
- b Jagiellonian Centre for Experimental Therapeutics (JCET) , Jagiellonian University in Cracow , Cracow , Poland.,e Department of Chemical Physics, Faculty of Chemistry , Jagiellonian University in Cracow , Cracow , Poland
| | - Wojciech Piekoszewski
- f Department of Analytical Chemistry, Faculty of Chemistry , Jagiellonian University in Cracow , Cracow , Poland.,g School of Biomedicine , Far Eastern Federal University , Vladivostok , Russia
| | - Bogusław Buszewski
- d Department of Environmental Chemistry and Bioanalytics , Faculty of Chemistry, Nicolaus Copernicus University , Torun , Poland
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Rupp C, Stremmel W, Weiss KH. Novel perspectives on Wilson disease treatment. WILSON DISEASE 2017; 142:225-230. [DOI: 10.1016/b978-0-444-63625-6.00019-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Kashyap S, Kheniser K, Li L, Bena J, Kasumov T. The therapeutic efficacy of intensive medical therapy in ameliorating high-density lipoprotein dysfunction in subjects with type two diabetes. Lipids Health Dis 2016; 15:141. [PMID: 27567897 PMCID: PMC5002094 DOI: 10.1186/s12944-016-0314-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 08/23/2016] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND To determine whether 12 months of intensive medical therapy (IMT) improves HDL functionality parameters in subjects with type II diabetes (T2D). METHODS Retrospective, randomized, and controlled 12-month IMT intervention trial that enrolled 13-subjects with T2D (age 51- years, fasting glucose 147 mg/dL, body mass index [BMI] 36.5 kg/m(2)) and nine healthy control (46-years, fasting glucose 90 mg/dL, BMI 26.5 kg/m2). Subjects with T2D underwent IMT and HDL functionality measures (pro-inflammatory index of high-density lipoprotein (pHDL)), paraoxonase one (PON1), ceruloplasmin (Cp), and myeloperoxidase (MPO) activity were performed on samples at baseline and at 12-months following IMT. RESULTS At baseline, pHDL index was significantly higher in subjects with T2D (p < 0.001) and apolipoprotein A-1 levels were significantly lower (p = 0.013) vs. CONTROLS After 12-months, there was a trend for improved pHDL activity (p = 0.083), as indicated by intent-to-treat analysis, but when the non-adherent subject was omitted (per-protocol), significant attenuations in pHDL activity (p = 0.040) were noted; Δ pHDL activity at 12-months was associated with Δ weight (r = 0.62, p = 0.032) and Δ fasting glucose (r = 0.65, p = 0.022). Moreover, PON1 activity significantly improved (p < 0.001). The aforementioned occurred in association with improvements in inflammatory markers (i.e., C-reactive protein & tumor necrosis factor), hemoglobin A1C, fasting glucose, triglycerides, high-density lipoprotein levels and adipokines. CONCLUSION IMT ameliorates pHDL index and significantly improves anti-oxidative function, as measured by PON1. Improvements in weight and fasting glucose mediated the decrease in pHDL index. Pharmacological aids and lifestyle modification are required to improve cardiovascular risk factors, subsequent mortality risk, and promote T2D remission. Application of either form of therapy alone may only have relatively miniscule effects on the aforementioned factors, in relation to the aggregate.
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Affiliation(s)
- Sangeeta Kashyap
- Departemnt of Endocrinology and Metabolism, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
| | - Karim Kheniser
- Departemnt of Endocrinology and Metabolism, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Ling Li
- Department of Core Facilities, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - James Bena
- Department of Quantitative Health Sciences, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Takhar Kasumov
- Department of Hepatology, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH, 44195, USA. .,Present address: Department of Pharmaceutical Sciences, Northeast Ohio Medical University, 4209 St. R. 44, PO Box 95, Rootstown, OH, 44272, USA.
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Joshi A, Rastedt W, Faber K, Schultz AG, Bulcke F, Dringen R. Uptake and Toxicity of Copper Oxide Nanoparticles in C6 Glioma Cells. Neurochem Res 2016; 41:3004-3019. [DOI: 10.1007/s11064-016-2020-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/25/2016] [Accepted: 07/28/2016] [Indexed: 01/14/2023]
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Gomathy Narayanan I, Saravanan R, Bharathselvi M, Biswas J, Sulochana KN. Localization of Human Copper Transporter 1 in the Eye and its Role in Eales Disease. Ocul Immunol Inflamm 2016; 24:678-683. [PMID: 26807780 DOI: 10.3109/09273948.2015.1071404] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE Copper (Cu) is an essential trace element; however excess is toxic due to the pro-oxidant activity. Increased intracellular Cu levels in vitreous and monocyte were reported in Eales disease (ED) previously. Copper transporter1 (CTR1) maintains copper homeostasis and hence, we studied the presence of CTR1 in ocular tissues and its role in ED. METHODS Real-time PCR, ELISA and Western blot experiments were performed in donor eyeballs tissues and PBMCs isolated from controls and ED. Immunostaining were performed for CTR1 from donor eyeballs and one ED case. RESULTS CTR1 protein was expressed in all ocular tissues. PBMCs showed a three-fold increase in CTR1 protein in ED when compared with controls. Retinal sections from ED patients also revealed increased CTR1 protein expression in retinal tissues, compared with control. CONCLUSIONS CTR1 was significantly increased in ED when compared with controls, indicating its considerable role in the ED pathology.
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Affiliation(s)
- Iyer Gomathy Narayanan
- a RS Mehta Jain Department of Biochemistry and Cell Biology , Vision Research Foundation, Sankara Nethralaya , Chennai , India.,b Birla Institute of Technology and Science , Pilani , India
| | - R Saravanan
- c Tamil Nadu Dr. MGR Medical University , Chennai , India
| | - M Bharathselvi
- a RS Mehta Jain Department of Biochemistry and Cell Biology , Vision Research Foundation, Sankara Nethralaya , Chennai , India.,b Birla Institute of Technology and Science , Pilani , India
| | - Jyotirmay Biswas
- a RS Mehta Jain Department of Biochemistry and Cell Biology , Vision Research Foundation, Sankara Nethralaya , Chennai , India.,d Uveitis Clinic , Medical Research Foundation , Chennai , India
| | - K N Sulochana
- a RS Mehta Jain Department of Biochemistry and Cell Biology , Vision Research Foundation, Sankara Nethralaya , Chennai , India
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36
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Urso E, Maffia M. Behind the Link between Copper and Angiogenesis: Established Mechanisms and an Overview on the Role of Vascular Copper Transport Systems. J Vasc Res 2015; 52:172-96. [PMID: 26484858 DOI: 10.1159/000438485] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 07/07/2015] [Indexed: 11/19/2022] Open
Abstract
Angiogenesis critically sustains the progression of both physiological and pathological processes. Copper behaves as an obligatory co-factor throughout the angiogenic signalling cascades, so much so that a deficiency causes neovascularization to abate. Moreover, the progress of several angiogenic pathologies (e.g. diabetes, cardiac hypertrophy and ischaemia) can be tracked by measuring serum copper levels, which are being increasingly investigated as a useful prognostic marker. Accordingly, the therapeutic modulation of body copper has been proven effective in rescuing the pathological angiogenic dysfunctions underlying several disease states. Vascular copper transport systems profoundly influence the activation and execution of angiogenesis, acting as multi-functional regulators of apparently discrete pro-angiogenic pathways. This review concerns the complex relationship among copper-dependent angiogenic factors, copper transporters and common pathological conditions, with an unusual accent on the multi-faceted involvement of the proteins handling vascular copper. Functions regulated by the major copper transport proteins (CTR1 importer, ATP7A efflux pump and metallo-chaperones) include the modulation of endothelial migration and vascular superoxide, known to activate angiogenesis within a narrow concentration range. The potential contribution of prion protein, a controversial regulator of copper homeostasis, is discussed, even though its angiogenic involvement seems to be mainly associated with the modulation of endothelial motility and permeability.
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Affiliation(s)
- Emanuela Urso
- Department of Biological and Environmental Science and Technologies, University of Salento, Lecce, Italy
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37
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Chen GF, Sudhahar V, Youn SW, Das A, Cho J, Kamiya T, Urao N, McKinney RD, Surenkhuu B, Hamakubo T, Iwanari H, Li S, Christman JW, Shantikumar S, Angelini GD, Emanueli C, Ushio-Fukai M, Fukai T. Copper Transport Protein Antioxidant-1 Promotes Inflammatory Neovascularization via Chaperone and Transcription Factor Function. Sci Rep 2015; 5:14780. [PMID: 26437801 PMCID: PMC4594038 DOI: 10.1038/srep14780] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/07/2015] [Indexed: 01/24/2023] Open
Abstract
Copper (Cu), an essential micronutrient, plays a fundamental role in inflammation and angiogenesis; however, its precise mechanism remains undefined. Here we uncover a novel role of Cu transport protein Antioxidant-1 (Atox1), which is originally appreciated as a Cu chaperone and recently discovered as a Cu-dependent transcription factor, in inflammatory neovascularization. Atox1 expression is upregulated in patients and mice with critical limb ischemia. Atox1-deficient mice show impaired limb perfusion recovery with reduced arteriogenesis, angiogenesis, and recruitment of inflammatory cells. In vivo intravital microscopy, bone marrow reconstitution, and Atox1 gene transfer in Atox1−/− mice show that Atox1 in endothelial cells (ECs) is essential for neovascularization and recruitment of inflammatory cells which release VEGF and TNFα. Mechanistically, Atox1-depleted ECs demonstrate that Cu chaperone function of Atox1 mediated through Cu transporter ATP7A is required for VEGF-induced angiogenesis via activation of Cu enzyme lysyl oxidase. Moreover, Atox1 functions as a Cu-dependent transcription factor for NADPH oxidase organizer p47phox, thereby increasing ROS-NFκB-VCAM-1/ICAM-1 expression and monocyte adhesion in ECs inflamed with TNFα in an ATP7A-independent manner. These findings demonstrate a novel linkage between Atox1 and NADPH oxidase involved in inflammatory neovascularization and suggest Atox1 as a potential therapeutic target for treatment of ischemic disease.
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Affiliation(s)
- Gin-Fu Chen
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL
| | - Varadarajan Sudhahar
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL
| | - Seock-Won Youn
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL
| | - Archita Das
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL
| | - Jaehyung Cho
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL
| | - Tetsuro Kamiya
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL
| | - Norifumi Urao
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL
| | - Ronald D McKinney
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL.,Department of Pharmacology, University of Illinois at Chicago, Chicago, IL.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL
| | - Bayasgalan Surenkhuu
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL
| | - Takao Hamakubo
- Department of Quantitative Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Hiroko Iwanari
- Department of Quantitative Biology and Medicine, Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Senlin Li
- Department of Medicine, University of Texas Health Science Center, San Antonio, Texas
| | - John W Christman
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine The Ohio State University Wexner Medical Center, OH
| | - Saran Shantikumar
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol
| | - Gianni D Angelini
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol.,National Heart and Lung Institute, Imperial College of London, London, UK
| | - Costanza Emanueli
- Bristol Heart Institute, School of Clinical Sciences, University of Bristol, Bristol.,National Heart and Lung Institute, Imperial College of London, London, UK
| | - Masuko Ushio-Fukai
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL
| | - Tohru Fukai
- Departments of Medicine (Section of Cardiology) and Pharmacology, University of Illinois at Chicago, Chicago, IL.,Department of Pharmacology, University of Illinois at Chicago, Chicago, IL.,Center for Cardiovascular Research, University of Illinois at Chicago, Chicago, IL.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL
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Bulcke F, Santofimia-Castaño P, Gonzalez-Mateos A, Dringen R. Modulation of copper accumulation and copper-induced toxicity by antioxidants and copper chelators in cultured primary brain astrocytes. J Trace Elem Med Biol 2015; 32:168-76. [PMID: 26302925 DOI: 10.1016/j.jtemb.2015.07.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/30/2015] [Accepted: 07/03/2015] [Indexed: 12/22/2022]
Abstract
Copper is essential for several important cellular processes, but an excess of copper can also lead to oxidative damage. In brain, astrocytes are considered to play a pivotal role in the copper homeostasis and antioxidative defence. To investigate whether antioxidants and copper chelators can modulate the uptake and the toxicity of copper ions in brain astrocytes, we used primary astrocytes as cell culture model. These cells accumulated substantial amounts of copper during exposure to copper chloride. Copper accumulation was accompanied by a time- and concentration-dependent loss in cell viability, as demonstrated by a lowering in cellular MTT reduction capacity and by an increase in membrane permeability for propidium iodide. During incubations in the presence of the antioxidants ascorbate, trolox or ebselen, the specific cellular copper content and the toxicity in copper chloride-treated astrocyte cultures were strongly increased. In contrast, the presence of the copper chelators bathocuproine disulfonate or tetrathiomolybdate lowered the cellular copper accumulation and the copper-induced as well as the ascorbate-accelerated copper toxicity was fully prevented. These data suggest that predominantly the cellular content of copper determines copper-induced toxicity in brain astrocytes.
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Affiliation(s)
- Felix Bulcke
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, PO Box 330440, D-28334 Bremen, Germany; Center for Environmental Research and Sustainable Technology, Leobener Strasse, D-28359 Bremen, Germany
| | - Patricia Santofimia-Castaño
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, E-10003 Caceres, Spain
| | - Antonio Gonzalez-Mateos
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, E-10003 Caceres, Spain
| | - Ralf Dringen
- Center for Biomolecular Interactions Bremen, Faculty 2 (Biology/Chemistry), University of Bremen, PO Box 330440, D-28334 Bremen, Germany; Center for Environmental Research and Sustainable Technology, Leobener Strasse, D-28359 Bremen, Germany.
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Wei H, Zhang WJ, Leboeuf R, Frei B. Copper induces--and copper chelation by tetrathiomolybdate inhibits--endothelial activation in vitro. Redox Rep 2013; 19:40-8. [PMID: 24225134 DOI: 10.1179/1351000213y.0000000070] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Endothelial activation with increased expression of cellular adhesion molecules and chemokines critically contributes to vascular inflammation and atherogenesis. Redox-active transition metal ions play an important role in vascular oxidative stress and inflammation. Therefore, the goal of the present study was to investigate the role of copper in endothelial activation and the potential anti-inflammatory effects of copper chelation by tetrathiomolybdate (TTM) in human aortic endothelial cells (HAECs). Incubating HAECs with cupric sulfate dose- and time-dependently increased mRNA and protein expression of vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1), and monocyte chemotactic protein-1 (MCP-1). Copper also activated the redox-sensitive transcription factors, nuclear factor kappa B (NF-κB) and activator protein-1 (AP-1), which was inhibited by pretreatment of the cells with TTM. Furthermore, TTM dose-dependently inhibited tumor necrosis factor α (TNFα)-induced activation of NF-κB and AP-1, as well as mRNA and protein expression of VCAM-1, ICAM-1, and MCP-1, which was abolished by preincubating the cells with 5 µM TTM and 15 µM cupric sulfate. The inhibitory effect of TTM on TNFα-induced NF-κB activation was associated with decreased phosphorylation and degradation of IκBα. These data suggest that intracellular copper causes activation of redox-sensitive transcription factors and upregulation of inflammatory mediators in endothelial cells. Copper chelation by TTM may attenuate TNFα-induced endothelial activation and, hence, inhibit vascular inflammation and atherosclerosis.
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Rapid copper acquisition by developing murine mesothelioma: decreasing bioavailable copper slows tumor growth, normalizes vessels and promotes T cell infiltration. PLoS One 2013; 8:e73684. [PMID: 24013775 PMCID: PMC3754934 DOI: 10.1371/journal.pone.0073684] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 07/19/2013] [Indexed: 01/17/2023] Open
Abstract
Copper, an essential trace element acquired through nutrition, is an important co-factor for pro-angiogenic factors including vascular endothelial growth factor (VEGF). Decreasing bioavailable copper has been used as an anti-angiogenic and anti-cancer strategy with promising results. However, the role of copper and its potential as a therapy in mesothelioma is not yet well understood. Therefore, we monitored copper levels in progressing murine mesothelioma tumors and analyzed the effects of lowering bioavailable copper. Copper levels in tumors and organs were assayed using atomic absorption spectrophotometry. Mesothelioma tumors rapidly sequestered copper at early stages of development, the copper was then dispersed throughout growing tumor tissues. These data imply that copper uptake may play an important role in early tumor development. Lowering bioavailable copper using the copper chelators, penicillamine, trientine or tetrathiomolybdate, slowed in vivo mesothelioma growth but did not provide any cures similar to using cisplatin chemotherapy or anti-VEGF receptor antibody therapy. The impact of copper lowering on tumor blood vessels and tumor infiltrating T cells was measured using flow cytometry and confocal microscopy. Copper lowering was associated with reduced tumor vessel diameter, reduced endothelial cell proliferation (reduced Ki67 expression) and lower surface ICAM/CD54 expression implying reduced endothelial cell activation, in a process similar to endothelial normalization. Copper lowering was also associated with a CD4(+) T cell infiltrate. In conclusion, these data suggest copper lowering is a potentially useful anti-mesothelioma treatment strategy that slows tumor growth to provide a window of opportunity for inclusion of other treatment modalities to improve patient outcomes.
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Liu SC, Hsu CJ, Fong YC, Chuang SM, Tang CH. CTGF induces monocyte chemoattractant protein-1 expression to enhance monocyte migration in human synovial fibroblasts. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:1114-24. [DOI: 10.1016/j.bbamcr.2012.12.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 11/29/2012] [Accepted: 12/18/2012] [Indexed: 11/28/2022]
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Patel OV, Wilson WB, Qin Z. Production of LPS-induced inflammatory mediators in murine peritoneal macrophages: neocuproine as a broad inhibitor and ATP7A as a selective regulator. Biometals 2013; 26:415-25. [DOI: 10.1007/s10534-013-9624-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 03/27/2013] [Indexed: 11/28/2022]
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Abstract
Ruminants are more vulnerable to copper deficiency than humans because rumen sulfide generation lowers copper availability from forage, increasing the risk of conditions such as swayback in lambs. Molybdenum-rich pastures promote thiomolybdate (TM) synthesis and formation of unabsorbable Cu-TM complexes, turning risk to clinical reality (hypocuprosis). Selection pressures created ruminant species with tolerance of deficiency but vulnerability to copper toxicity in alien environments, such as specific pathogen-free units. By contrast, cases of copper imbalance in humans seemed confined to rare genetic aberrations of copper metabolism. Recent descriptions of human swayback and the exploratory use of TM for the treatment of Wilson's disease, tumor growth, inflammatory diseases, and Alzheimer's disease have created unexpected common ground. The incidence of pre-hemolytic copper poisoning in specific pathogen-free lambs was reduced by an infection with Mycobacterium avium that left them more responsive to treatment with TM but vulnerable to long-term copper depletion. Copper requirements in ruminants and humans may need an extra allowance for the "copper cost" of immunity to infection. Residual cuproenzyme inhibition in TM-treated lambs and anomalies in plasma copper composition that appeared to depend on liver copper status raise this question "can chelating capacity be harnessed without inducing copper-deficiency in ruminants or humans?" A model of equilibria between exogenous (TM) and endogenous chelators (e.g., albumin, metallothionein) is used to predict risk of exposure and hypocuprosis; although risk of natural exposure in humans is remote, vulnerability to TM-induced copper deficiency may be high. Biomarkers of TM impact are needed, and copper chaperones for inhibited cuproenzymes are prime candidates.
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Wei H, Zhang WJ, Mcmillen TS, Leboeuf RC, Frei B. Copper chelation by tetrathiomolybdate inhibits vascular inflammation and atherosclerotic lesion development in apolipoprotein E-deficient mice. Atherosclerosis 2012; 223:306-13. [PMID: 22770994 PMCID: PMC3417757 DOI: 10.1016/j.atherosclerosis.2012.06.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 06/04/2012] [Accepted: 06/06/2012] [Indexed: 10/28/2022]
Abstract
Endothelial activation, which is characterized by upregulation of cellular adhesion molecules and pro-inflammatory chemokines and cytokines, and consequent monocyte recruitment to the arterial intima are etiologic factors in atherosclerosis. Redox-active transition metal ions, such as copper and iron, may play an important role in endothelial activation by stimulating redox-sensitive cell signaling pathways. We have shown previously that copper chelation by tetrathiomolybdate (TTM) inhibits LPS-induced acute inflammatory responses in vivo. Here, we investigated whether TTM can inhibit atherosclerotic lesion development in apolipoprotein E-deficient (apoE-/-) mice. We found that 10-week treatment of apoE-/- mice with TTM (33-66 ppm in the diet) reduced serum levels of the copper-containing protein, ceruloplasmin, by 47%, and serum iron by 26%. Tissue levels of "bioavailable" copper, assessed by the copper-to-molybdenum ratio, decreased by 80% in aorta and heart, whereas iron levels of these tissues were not affected by TTM treatment. Furthermore, TTM significantly attenuated atherosclerotic lesion development in whole aorta by 25% and descending aorta by 45% compared to non-TTM treated apoE-/- mice. This anti-atherogenic effect of TTM was accompanied by several anti-inflammatory effects, i.e., significantly decreased serum levels of soluble vascular cell and intercellular adhesion molecules (VCAM-1 and ICAM-1); reduced aortic gene expression of VCAM-1, ICAM-1, monocyte chemotactic protein-1, and pro-inflammatory cytokines; and significantly less aortic accumulation of M1 type macrophages. In contrast, serum levels of oxidized LDL were not reduced by TTM. These data indicate that TTM inhibits atherosclerosis in apoE-/- mice by reducing bioavailable copper and vascular inflammation, not by altering iron homeostasis or reducing oxidative stress.
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Affiliation(s)
| | - Wei-Jian Zhang
- Correspondence and reprint requests should be addressed to: Balz Frei or Wei-jian Zhang, Linus Pauling Institute, Oregon State University, 307 Linus Pauling Science Center, Corvallis, OR 97331, Phone: (541) 737-5075, FAX: (541) 737-5077, or
| | - Timothy S. Mcmillen
- Division of Metabolism, Endocrinology, and Nutrition, Department of Medicine, University of Washington, Seattle, WA 98195
| | - Renee C. Leboeuf
- Division of Metabolism, Endocrinology, and Nutrition, Department of Medicine, University of Washington, Seattle, WA 98195
| | - Balz Frei
- Correspondence and reprint requests should be addressed to: Balz Frei or Wei-jian Zhang, Linus Pauling Institute, Oregon State University, 307 Linus Pauling Science Center, Corvallis, OR 97331, Phone: (541) 737-5075, FAX: (541) 737-5077, or
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Bogaard HJ, Mizuno S, Guignabert C, Al Hussaini AA, Farkas D, Ruiter G, Kraskauskas D, Fadel E, Allegood JC, Humbert M, Vonk Noordegraaf A, Spiegel S, Farkas L, Voelkel NF. Copper dependence of angioproliferation in pulmonary arterial hypertension in rats and humans. Am J Respir Cell Mol Biol 2011; 46:582-91. [PMID: 22162909 DOI: 10.1165/rcmb.2011-0296oc] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Obliteration of the vascular lumen by endothelial cell growth is a hallmark of many forms of severe pulmonary arterial hypertension. Copper plays a significant role in the control of endothelial cell proliferation in cancer and wound-healing. We sought to determine whether angioproliferation in rats with experimental pulmonary arterial hypertension and pulmonary microvascular endothelial cell proliferation in humans depend on the proangiogenic action of copper. A copper-depleted diet prevented, and copper chelation with tetrathiomolybdate reversed, the development of severe experimental pulmonary arterial hypertension. The copper chelation-induced reopening of obliterated vessels was caused by caspase-independent apoptosis, reduced vessel wall cell proliferation, and a normalization of vessel wall structure. No evidence was found for a role of super oxide-1 inhibition or lysyl-oxidase-1 inhibition in the reversal of angioproliferation. Tetrathiomolybdate inhibited the proliferation of human pulmonary microvascular endothelial cells, isolated from explanted lungs from control subjects and patients with pulmonary arterial hypertension. These data suggest that the inhibition of endothelial cell proliferation by a copper-restricting strategy could be explored as a new therapeutic approach in pulmonary arterial hypertension. It remains to be determined, however, whether potential toxicity to the right ventricle is offset by the beneficial pulmonary vascular effects of antiangiogenic treatment in patients with pulmonary arterial hypertension.
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Affiliation(s)
- Harm J Bogaard
- Department of Pulmonary Medicine, VU University Medical Center, Amsterdam, The Netherlands.
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