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Wu J, He J, Liu Z, Zhu X, Li Z, Chen A, Lu J. Cuproptosis: Mechanism, role, and advances in urological malignancies. Med Res Rev 2024; 44:1662-1682. [PMID: 38299968 DOI: 10.1002/med.22025] [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] [Received: 07/12/2023] [Revised: 01/13/2024] [Accepted: 01/19/2024] [Indexed: 02/02/2024]
Abstract
Prostate, bladder, and kidney cancers are the most common malignancies of the urinary system. Chemotherapeutic drugs are generally used as adjuvant treatment in the middle, late, or recurrence stages after surgery for urologic cancers. However, traditional chemotherapy is plagued by problems such as poor efficacy, severe side effects, and complications. Copper-containing nanomedicines are promising novel cancer treatment modalities that can potentially overcome these disadvantages. Copper homeostasis and cuproptosis play crucial roles in the development, adaptability, and therapeutic sensitivity of urological malignancies. Cuproptosis refers to the direct binding of copper ions to lipoylated components of the tricarboxylic acid cycle, leading to protein oligomerization, loss of iron-sulfur proteins, proteotoxic stress, and cell death. This review focuses on copper homeostasis and cuproptosis as well as recent findings on copper and cuproptosis in urological malignancies. Furthermore, we highlight the potential therapeutic applications of copper- and cuproptosis-targeted therapies to better understand cuproptosis-based drugs for the treatment of urological tumors in the future.
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Affiliation(s)
- Jialong Wu
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Jide He
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Zenan Liu
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Xuehua Zhu
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Ziang Li
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Anjing Chen
- Department of Neurosurgery, Qilu Hospital and Institute of Brain and Brain-Inspired Science, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Jian Lu
- Department of Urology, Peking University Third Hospital, Beijing, China
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2
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Zhang Y, He J, Jin J, Ren C. Recent advances in the application of metallomics in diagnosis and prognosis of human cancer. Metallomics 2022; 14:6596881. [PMID: 35648480 DOI: 10.1093/mtomcs/mfac037] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022]
Abstract
Metals play a critical role in human health and diseases. In recent years, metallomics has been introduced and extensively applied to investigate the distribution, regulation, function, and crosstalk of metal(loid) ions in various physiological and pathological processes. Based on high-throughput multielemental analytical techniques and bioinformatics methods, it is possible to elucidate the correlation between the metabolism and homeostasis of diverse metals and complex diseases, in particular for cancer. This review aims to provide an overview of recent progress made in the application of metallomics in cancer research. We mainly focuses on the studies about metallomic profiling of different human biological samples for several major types of cancer, which reveal distinct and dynamic patterns of metal ion contents and the potential benefits of using such information in the detection and prognosis of these malignancies. Elevated levels of copper appear to be a significant risk factor for various cancers, and each type of cancer has a unique distribution of metals in biofluids, hair/nails, and tumor-affected tissues. Furthermore, associations between genetic variations in representative metalloprotein genes and cancer susceptibility have also been demonstrated. Overall, metallomics not only offers a better understanding of the relationship between metal dyshomeostasis and the development of cancer but also facilitates the discovery of new diagnostic and prognostic markers for cancer translational medicine.
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Affiliation(s)
- Yan Zhang
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, Brain Disease and Big Data Research Institute, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong Province, P. R. China.,Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Jie He
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, Brain Disease and Big Data Research Institute, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Jiao Jin
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, Brain Disease and Big Data Research Institute, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Cihan Ren
- Experimental High School Attached to Beijing Normal University, Beijing 100052, P. R. China
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3
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Duroudier N, Markaide P, Cajaraville MP, Bilbao E. Season influences the transcriptomic effects of dietary exposure to PVP/PEI coated Ag nanoparticles on mussels Mytilus galloprovincialis. Comp Biochem Physiol C Toxicol Pharmacol 2019; 222:19-30. [PMID: 30940556 DOI: 10.1016/j.cbpc.2019.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 12/17/2022]
Abstract
Toxicity of AgNPs has been widely studied in waterborne exposed aquatic organisms. However, toxic effects caused by AgNPs ingested through the diet and depending on the season are still unexplored. The first cell response after exposure to xenobiotics occurs at gene transcription level. Thus, the aim of this study was to assess transcription level effects in the digestive gland of female mussels after dietary exposure to AgNPs both in autumn and in spring. Mussels were fed daily for 21 days with Isochrysis galbana microalgae previously exposed for 24 h to a dose close to environmentally relevant concentrations of 1 μg Ag/L PVP/PEI coated 5 nm AgNPs (in spring) and to a higher dose of 10 μg Ag/L of the same AgNPs both in autumn and in spring. After 1 and 21 days, mussels RNA was hybridized in a custom microarray containing 7806 annotated genes. Mussels were more responsive to the high dose compared to the low dose of AgNPs and a higher number of probes were altered in autumn than in spring. In both seasons, significantly regulated genes were involved in the cytoskeleton and lipid transport and metabolism COG categories, among others, while genes involved in carbohydrate transport and metabolism were specifically altered in autumn. Overall, transcription patterns were differently altered depending on the exposure time and season, indicating that season should be considered in ecotoxicological studies of metal nanoparticles in mussels.
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Affiliation(s)
- Nerea Duroudier
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country (UPV/EHU), Basque Country, Spain
| | - Pablo Markaide
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Spain
| | - Miren P Cajaraville
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country (UPV/EHU), Basque Country, Spain
| | - Eider Bilbao
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country (UPV/EHU), Basque Country, Spain.
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Aivazidis S, Anderson CC, Roede JR. Toxicant-mediated redox control of proteostasis in neurodegeneration. CURRENT OPINION IN TOXICOLOGY 2019; 13:22-34. [PMID: 31602419 PMCID: PMC6785977 DOI: 10.1016/j.cotox.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Disruption in redox signaling and control of cellular processes has emerged as a key player in many pathologies including neurodegeneration. As protein aggregations are a common hallmark of several neuronal pathologies, a firm understanding of the interplay between redox signaling, oxidative and free radical stress, and proteinopathies is required to sort out the complex mechanisms in these diseases. Fortunately, models of toxicant-induced neurodegeneration can be utilized to evaluate and report mechanistic alterations in the proteostasis network (PN). The epidemiological links between environmental toxicants and neurological disease gives further credence into characterizing the toxicant-mediated PN disruptions observed in these conditions. Reviewed here are examples of mechanistic interaction between oxidative or free radical stress and PN alterations. Additionally, investigations into toxicant-mediated PN disruptions, specifically focusing on environmental metals and pesticides, are discussed. Finally, we emphasize the need to distinguish whether the presence of protein aggregations are contributory to phenotypes related to neurodegeneration, or if they are a byproduct of PN deficiencies.
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Affiliation(s)
- Stefanos Aivazidis
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Colin C Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - James R Roede
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
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Meng J, Wang WX, Li L, Zhang G. Respiration disruption and detoxification at the protein expression levels in the Pacific oyster (Crassostrea gigas) under zinc exposure. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 191:34-41. [PMID: 28780297 DOI: 10.1016/j.aquatox.2017.07.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/17/2017] [Accepted: 07/19/2017] [Indexed: 06/07/2023]
Abstract
The Pacific oyster (Crassostrea gigas) can accumulate high levels of zinc (Zn) without obvious toxicity, but the related molecular mechanisms are largely unknown. In the present study, C. gigas were exposed to excess Zn for 9days and the differentially expressed proteins (DEPs) were examined using the isobaric tags for relative and absolute quantitation (iTRAQ) method. In total, 2667 proteins containing at least two peptides and detected in both replicates were used for proteomic analysis. Among these DEPs, 332 were up-regulated and 282 were down-regulated. KEGG enrichment analysis of DEPs revealed that Zn exposure mainly distrubed 'tricarboxylic acid (TCA) cycle', 'electron transport chain (ETC)' and 'glutathione (GSH) metabolism' processes in oysters. Further key protein expressions enriched in these metabolism pathways were analyzed. In TCA cycle, Zn inhibited the Fe-containing protein expressions, which may lead to the accumulation of succinate and induce anaerobiosis. In ETC metabolism process, Zn inhibited ETC complex protein expressions, including complex I-IV, which may affect the electron transport process. Furthermore, Zn induced phytochelatin (PC) and glutathione peroxidase (GPX) expression in GSH catabolism. The proteins play important roles in Zn detoxification and ROS elimination process. The transcriptional expressions of genes encoding these proteins were observed using real-time PCR analysis, and there was good consistency between these two datasets. Overall, we provide direct evidence for Zn toxicity and detoxification mechanisms at protein level.
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Affiliation(s)
- Jie Meng
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China; Laboratory for Marine Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China; National & Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao 266071, Shandong, China
| | - Wen-Xiong Wang
- Marine Environmental Laboratory, HKUST Shenzhen Research Institute, Shenzhen 518057, China
| | - Li Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China; Laboratory for Marine Fisheries and Aquaculture, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China; National & Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao 266071, Shandong, China.
| | - Guofan Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China; National & Local Joint Engineering Laboratory of Ecological Mariculture, Qingdao 266071, Shandong, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, Shandong, China.
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6
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Zhang L, Zhu Y, Hao R, Shao M, Luo Y. Cadmium Levels in Tissue and Plasma as a Risk Factor for Prostate Carcinoma: a Meta-Analysis. Biol Trace Elem Res 2016; 172:86-92. [PMID: 26631052 DOI: 10.1007/s12011-015-0576-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 11/25/2015] [Indexed: 01/08/2023]
Abstract
Cadmium is a heavy metal that has been suggested to be a carcinogen by evidence. A number of published studies have investigated the association between cadmium levels and prostate cancer, but the results were inconsistent. Thus, we conducted a meta-analysis to get a precise estimate of this subject. After a careful searching and screening, a total of 11 publications containing 14 separated studies were included. Based on a random-effect model, the pooled data showed that cadmium levels of prostate tissues (standard mean difference (SMD) = 3.17, 95 % confidence interval (CI) = 0.60-5.74, P < 0.05) and plasma (SMD = 4.07, 95 % CI = 2.01-6.13, P < 0.05) were significantly higher in prostate cancer patients than those in the healthy controls. No difference of hair and nail cadmium levels between the prostate cancer cases and the controls was found. The data suggested that cadmium exposure might exert an influence on the tumorigenesis of prostate tissues. Future investigations with large sample sizes are needed to verify the results.
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Affiliation(s)
- Liang Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
- Institute of Cancer, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Yi Zhu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
| | - Rui Hao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Mengmeng Shao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Yunbo Luo
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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Homma T, Kurahashi T, Lee J, Kang ES, Fujii J. SOD1 deficiency decreases proteasomal function, leading to the accumulation of ubiquitinated proteins in erythrocytes. Arch Biochem Biophys 2015; 583:65-72. [PMID: 26264915 DOI: 10.1016/j.abb.2015.07.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/16/2015] [Accepted: 07/27/2015] [Indexed: 01/19/2023]
Abstract
We previously demonstrated that elevated levels of ROS in red blood cells (RBCs) are responsible for anemia in SOD1-deficient mice, suggesting that the oxidative stress-induced massive destruction of RBCs is an underlying mechanism for autoimmune hemolytic anemia. In the current study, we examined the issue of how elevated ROS are involved in the destruction of RBCs and the onset of anemia from the view point of the proteolytic removal of oxidatively-damaged proteins. We found that poly-ubiquitinated proteins had accumulated and had undergone aggregation in RBCs from SOD1-deficient mice and from phenylhydrazine-induced anemic mice. Although the protein levels of the three catalytic components of the proteasome, β1, β2, and β5, were not significantly altered, their proteolytic activities were decreased in the SOD1-deficient RBCs. These data suggest that oxidative-stress triggers the dysfunction of the proteasomal system, which results in the accumulation of the aggregation of poly-ubiquitinated proteins. We conclude that an oxidative stress-induced malfunction in the scavenging activity of proteasomes accelerates the accumulation of damaged proteins, leading to a shortened lifespan of RBCs and, hence, anemia.
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Affiliation(s)
- Takujiro Homma
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Toshihiro Kurahashi
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Jaeyong Lee
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Eun Sil Kang
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Junichi Fujii
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan.
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Neslund-Dudas C, Levin AM, Rundle A, Beebe-Dimmer J, Bock CH, Nock NL, Jankowski M, Datta I, Krajenta R, Dou QP, Mitra B, Tang D, Rybicki BA. Case-only gene-environment interaction between ALAD tagSNPs and occupational lead exposure in prostate cancer. Prostate 2014; 74:637-46. [PMID: 24500903 PMCID: PMC4112406 DOI: 10.1002/pros.22781] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 12/31/2013] [Indexed: 11/08/2022]
Abstract
BACKGROUND Black men have historically had higher blood lead levels than white men in the U.S. and have the highest incidence of prostate cancer in the world. Inorganic lead has been classified as a probable human carcinogen. Lead (Pb) inhibits delta-aminolevulinic acid dehydratase (ALAD), a gene recently implicated in other genitourinary cancers. The ALAD enzyme is involved in the second step of heme biosynthesis and is an endogenous inhibitor of the 26S proteasome, a master system for protein degradation and a current target of cancer therapy. METHODS Using a case-only study design, we assessed potential gene-environment (G × E) interactions between lifetime occupational Pb exposure and 11 tagSNPs within ALAD in black (N = 260) and white (N = 343) prostate cancer cases. RESULTS Two ALAD tagSNPs in high linkage disequilibrium showed significant interaction with high Pb exposure among black cases (rs818684 interaction odds ratio or IOR = 2.73, 95% CI 1.43-5.22, P = 0.002; rs818689 IOR = 2.20, 95% CI 1.15-4.21, P = 0.017) and an additional tagSNP, rs2761016, showed G × E interaction with low Pb exposure (IOR = 2.08, 95% CI 1.13-3.84, P = 0.019). Further, the variant allele of rs818684 was associated with a higher Gleason grade in those with high Pb exposure among both blacks (OR 3.96, 95% CI 1.01-15.46, P = 0.048) and whites (OR 2.95, 95% CI 1.18-7.39, P = 0.020). CONCLUSIONS Genetic variation in ALAD may modify associations between Pb and prostate cancer. Additional studies of ALAD, Pb, and prostate cancer are warranted and should include black men. Prostate 74:637-646, 2014. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Christine Neslund-Dudas
- Department of Public Health Sciences, Henry Ford Health System, Detroit, Michigan
- Population Studies and Prevention Programs, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Albert M. Levin
- Department of Public Health Sciences, Henry Ford Health System, Detroit, Michigan
- Population Studies and Prevention Programs, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Andrew Rundle
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York
| | - Jennifer Beebe-Dimmer
- Population Studies and Prevention Programs, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Cathryn H. Bock
- Population Studies and Prevention Programs, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Nora L. Nock
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio
| | - Michelle Jankowski
- Department of Public Health Sciences, Henry Ford Health System, Detroit, Michigan
| | - Indrani Datta
- Department of Public Health Sciences, Henry Ford Health System, Detroit, Michigan
| | - Richard Krajenta
- Department of Public Health Sciences, Henry Ford Health System, Detroit, Michigan
| | - Q. Ping Dou
- Developmental Therapeutics Programs, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
- Department of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, Detroit, Michigan
| | - Bharati Mitra
- Department of Biochemistry & Molecular Biology, Wayne State University School of Medicine, Detroit, Michigan
| | - Deliang Tang
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, NewYork, NewYork
| | - Benjamin A. Rybicki
- Department of Public Health Sciences, Henry Ford Health System, Detroit, Michigan
- Population Studies and Prevention Programs, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
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9
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Götze S, Matoo OB, Beniash E, Saborowski R, Sokolova IM. Interactive effects of CO₂ and trace metals on the proteasome activity and cellular stress response of marine bivalves Crassostrea virginica and Mercenaria mercenaria. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 149:65-82. [PMID: 24572072 DOI: 10.1016/j.aquatox.2014.01.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/22/2013] [Accepted: 01/31/2014] [Indexed: 06/03/2023]
Abstract
Increased anthropogenic emission of CO2 changes the carbonate chemistry and decreases the pH of the ocean. This can affect the speciation and the bioavailability of metals in polluted habitats such as estuaries. However, the effects of acidification on metal accumulation and stress response in estuarine organisms including bivalves are poorly understood. We studied the interactive effects of CO2 and two common metal pollutants, copper (Cu) and cadmium (Cd), on metal accumulation, intracellular ATP/ubiquitin-dependent protein degradation, stress response and energy metabolism in two common estuarine bivalves-Crassostrea virginica (eastern oyster) and Mercenaria mercenaria (hard shell clam). Bivalves were exposed for 4-5 weeks to clean seawater (control) and to either 50 μg L(-1) Cu or 50 μg L(-1) Cd at one of three partial pressures of CO2 ( [Formula: see text] ∼ 395, ∼ 800 and ∼ 1500 μatm) representative of the present-day conditions and projections of the Intergovernmental Panel for Climate Change (IPCC) for the years 2100 and 2250, respectively. Clams accumulated lower metal burdens than oysters, and elevated [Formula: see text] enhanced the Cd and Cu accumulation in mantle tissues in both species. Higher Cd and Cu burdens were associated with elevated mRNA expression of metal binding proteins metallothionein and ferritin. In the absence of added metals, proteasome activities of clams and oysters were robust to elevated [Formula: see text] , but [Formula: see text] modulated the proteasome response to metals. Cd exposure stimulated the chymotrypsin-like activity of the oyster proteasome at all CO2 levels. In contrast, trypsin- and caspase-like activities of the oyster proteasome were slightly inhibited by Cd exposure in normocapnia but this inhibition was reversed at elevated [Formula: see text] . Cu exposure inhibited the chymotrypsin-like activity of the oyster proteasome regardless of the exposure [Formula: see text] . The effects of metal exposure on the proteasome activity were less pronounced in clams, likely due to the lower metal accumulation. However, the general trends (i.e. an increase during Cd exposure, inhibition during exposure to Cu, and overall stimulatory effects of elevated [Formula: see text] ) were similar to those found in oysters. Levels of mRNA for ubiquitin and tumor suppressor p53 were suppressed by metal exposures in normocapnia in both species but this effect was alleviated or reversed at elevated [Formula: see text] . Cellular energy status of oysters was maintained at all metal and CO2 exposures, while in clams the simultaneous exposure to Cu and moderate hypercapnia (∼ 800 μatm [Formula: see text] ) led to a decline in glycogen, ATP and ADP levels and an increase in AMP indicating energy deficiency. These data suggest that environmental CO2 levels can modulate accumulation and physiological effects of metals in bivalves in a species-specific manner which can affect their fitness and survival during the global change in estuaries.
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Affiliation(s)
- Sandra Götze
- Alfred Wegener Institute, Helmholtz Centre for Polar, Marine Research, Functional Ecology, 27570 Bremerhaven, Germany; Department of Biology, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Omera B Matoo
- Department of Biology, University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Elia Beniash
- Department of Oral Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Reinhard Saborowski
- Alfred Wegener Institute, Helmholtz Centre for Polar, Marine Research, Functional Ecology, 27570 Bremerhaven, Germany
| | - Inna M Sokolova
- Department of Biology, University of North Carolina at Charlotte, Charlotte, NC 28223, USA.
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10
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Tomco D, Schmitt S, Heeg MJ, Dou QP, Verani CN. Inhibition of the 26S proteasome as a possible mechanism for toxicity of heavy metal species. J Inorg Biochem 2014; 132:96-103. [PMID: 24452142 DOI: 10.1016/j.jinorgbio.2013.12.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 12/24/2013] [Accepted: 12/24/2013] [Indexed: 01/23/2023]
Abstract
In this paper we report on the synthesis of five metal complexes coordinated to the [NN'O] ligand HL(iodo) (2,4-diiodo-6-((pyridine-2-ylmethylamino)methyl)phenol), namely [Al(III)(L(iodo))2]ClO4 (1), [Cd(II)(L(iodo))Cl]·H2O (2), [Hg(II)(L(iodo))2]·4DMSO (3), [Pb(II)(L(iodo))NO3] (4), and [Sn(IV)(L(iodo))Cl3] (5). Species 1-5 are thoroughly characterized by spectroscopic and spectrometric methods, as well as by elemental analysis. X-ray crystallography results for complex 3 indicate the presence of Hg(II) ion hexacoordinated to two facially oriented [NN'O] ligands, whereas for complex 5 an Sn(IV) ion chelates to one deprotonated ligand and three chlorido coligands. The toxicity of species 1-5 is tested against transformed human prostate epithelial cells CRL2221 and we observe that the five complexes demonstrate high levels of cell growth inhibition in a dose-dependent manner. In order to evaluate the relationship between these species and the proteasome, we test 1-5 against purified 20S, CRL2221 cell extracts, and intact cells, followed by the measurement of the percent chymotrypsin-like activity inhibition levels. Results suggest a good correlation between the toxicity of [Hg(II)(L(iodo))2]·4DMSO (3) and proteasome inhibition.
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Affiliation(s)
- Dajena Tomco
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA
| | - Sara Schmitt
- Barbara Ann Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Oncology, School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Pathology, School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Mary Jane Heeg
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA
| | - Q Ping Dou
- Barbara Ann Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Oncology, School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Pathology, School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI 48201, USA.
| | - Cláudio N Verani
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
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11
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Costa AC, Ondar GF, Versiane O, Ramos JM, Santos TG, Martin AA, Raniero L, Bussi GGA, Téllez Soto CA. DFT: B3LYP/6-311G (d, p) vibrational analysis of bis-(diethyldithiocarbamate)zinc(II) and natural bond orbitals. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 105:251-258. [PMID: 23314390 DOI: 10.1016/j.saa.2012.11.097] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 11/21/2012] [Accepted: 11/27/2012] [Indexed: 06/01/2023]
Abstract
Theoretical and experimental bands have been assigned for the Fourier Transform Infrared (FT-IR) and Fourier Transform Raman (FT-Raman) spectra of the bis-(diethydithiocarbamate)Zn(II) complex, [Zn(DDTC)(2)]. The calculations and spectra interpretation have been based on the DFT/B3LYP method, infrared and Raman second derivative spectra as well as band deconvolution analysis. To assign the metal-ligand normal modes the deviation percentage of the geometrical parameters was used. Results confirms a pseudo tetrahedral structure around the Zn(II) cation. The calculated infrared and Raman spectra has an excellent agreement with the experimental spectra. The Natural Bond Orbital analysis (NBO) was carried out as a way to study the Zn(II) hybridization leading to the pseudo tetrahedral geometry of the framework of the [Zn(DDTC)(2)] complex, and to study also which are the donor NBO and the acceptor NBO in meaningful charge transfer through the Second Order Perturbation Theory Analysis of Fox Matrix in NBO basis.
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Affiliation(s)
- A C Costa
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Morro do Valonguinho s/n, Niterói-Centro, CEP 24210-150, RJ, Brazil
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Zhang Z, Bi C, Buac D, Fan Y, Zhang X, Zuo J, Zhang P, Zhang N, Dong L, Dou QP. Organic cadmium complexes as proteasome inhibitors and apoptosis inducers in human breast cancer cells. J Inorg Biochem 2013; 123:1-10. [PMID: 23499788 DOI: 10.1016/j.jinorgbio.2013.02.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 02/13/2013] [Accepted: 02/13/2013] [Indexed: 11/28/2022]
Abstract
Although cadmium (Cd) is a widespread environmental contaminant and human carcinogen, our studies indicate an organic Cd complex to be a potent inhibitor of proteasomal chymotrypsin-like (CT-like) activity, further capable of inducing apoptosis in a cancer cell-specific manner. It has been reported that the ligands indole-3-butyric acid (L1) and indole-3-propionic acid (L2) have cancer-fighting effects when tested in a rat carcinoma model. In addition, 3, 5-diaminobenzoic acid o-vanillin Schiff bases (L3) have high antimicrobial activity and a large number of Schiff base complexes have been reported to have proteasome-inhibitory activity. We therefore hypothesized that synthetic forms of Cd in combination with L1, L2 and L3 may have proteasome-inhibitory and apoptosis-inducing activities, which would be cancer cell-specific. To test this hypothesis, we have synthesized three novel Cd-containing complexes: [Cd2(C12H12O2N)4(H2O)2]·2H2O (Cd1), [Cd2(C11H10O2N)4(H2O)2]·2H2O (Cd2) and [Cd(C7H4N2O2)(C8H6O2)2]·2H2O (Cd3), by using these three ligands. We sought out to characterize and assess the proteasome-inhibitory and anti-proliferative properties of these three Cd complexes in human breast cancer cells. Cd1, Cd2 and Cd3 were found to effectively inhibit the chymotrypsin-like activity of purified 20S proteasome with IC50 values of 2.6, 3.0 and 3.3 μΜ, respectively. Moreover, inhibition of cancer cell proliferation also correlated with this effect. As a result of proteasomal shutdown, the accumulation of ubiquitinated proteins and the proteasome target IκB-α protein as well as induction of apoptosis were observed. To account for the cancer specificity of this effect, immortalized, non-tumorigenic breast MCF10A cells were used under the same experimental conditions. Our results indicate that MCF10A cells are much less sensitive to the Cd1, Cd2 and Cd3 complexes when compared to MDA MB 231 breast cancer cells. Therefore, our study suggests that these Cd organic complexes are capable of inhibiting tumor cellular proteasome activity and consequently induce cancer cell-specific apoptotic death.
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Affiliation(s)
- Zhen Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
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