1
|
Liu Q, Sun Y, Zhu Y, Qiao S, Cai J, Zhang Z. Melatonin relieves liver fibrosis induced by Txnrd3 knockdown and nickel exposure via IRE1/NF-kB/NLRP3 and PERK/TGF-β1 axis activation. Life Sci 2022; 301:120622. [PMID: 35537548 DOI: 10.1016/j.lfs.2022.120622] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 12/20/2022]
Abstract
AIMS Nickel(Ni) accumulates in the environment due to human activities such as electroplating, alloy production, stainless steel, Ni‑cadmium batteries and industrial production. Ni enriched in humans and animals through food chains, poses a serious health threat. Txnrd3, as a member of the thioredoxin reductase family, has long been thought to be testicular specific and involved in sperm maturation. However, its role in liver diseases still unknown. Melatonin exerts its antioxidant effects directly through its ability to clear free radicals and protects the liver from oxidative damage. Hepatic fibrosis with an ever-increasing incidence year by year, is correlating with outcome and risk of hepatocellular carcinoma. MATERIALS AND METHODS In this study, 60 8-week-old male C57BL/6 wild-type mice and 60 Txnrd3-/- mice were randomly divided into three groups, respectively. Control group was gavaged with distilled water, 10 mg/kg NiCl2 in Ni group, Ni + Mel group treated with 2 mg/kg melatonin in the morning, 10 mg/kg NiCl2 in the afternoon, serum and tissue was extracted after 21 days. KEY FINDINGS Results showed that liver function was significantly worse after Ni exposure, morphological and masson staining showed more significant liver fibrosis in Txnrd3-/- mice, damage of organelles in hepatocytes was observed. qPCR and WB results showed activation of the IRE1/Nuclear factor-kappa B/NLRP3 axis during Ni exposure lead to hepatocyte pyroptosis, while upregulation of PERK/TGF-β promoted liver fibrosis process and Txnrd3 knockout exacerbated liver damage during Ni exposure. SIGNIFICANCE The above results will lay the theoretical foundation for the monitoring and clinical treatment of Ni exposure.
Collapse
Affiliation(s)
- Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yue Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yue Zhu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Senqiu Qiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin 150030, PR China.
| |
Collapse
|
2
|
Wang L, He S, Xiong Z, Lu J, Lin Y, Jin H, Yang L. Chronic nickel (II) exposure induces the stemness properties of cancer cells through repressing isocitrate dehydrogenase (IDH1). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 213:112031. [PMID: 33578097 DOI: 10.1016/j.ecoenv.2021.112031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Nickel is a component of biomedical alloys that is released during corrosion or friction and causes cytotoxicity, mutation, differentiation or even carcinogenesis in tissues. However, the mechanisms underlying the potential hazards of Nickel-containing alloys implanted in the human body by surgery remain uncertain. OBJECTIVE To study the effect of Ni(II) (NiCl2•6H2O) on cancer cells. METHODS A549 and RKO cells were treated with various concentrations of Ni(II) to determine the effect of Ni(II) on cellular viability using a CCK8 assay. Flow cytometry was performed to analyze the effect of Ni(II) on apoptosis and the cell cycle. Sphere-forming assays were conducted to examine the stemness properties of A549 and RKO cells. Western blotting was to evaluate the expression levels of SOX2, IDH1, HIF-1ɑ and β-catenin. The expression of isocitrate dehydrogenase (IDH1) in rectum adenocarcinoma (READ) was analyzed by Gene Expression Profiling Interactive Analysis (GEPIA). Kaplan-Meier analysis was used to calculate the correlation between survival and IDH1 expression. RESULTS Long-term exposure (120 days) to 100 µM Ni(II) significantly repressed cell proliferation, decreased colony formation and arrested the cell cycle at the G0/G1 phase. In addition, the stem-like traits of A549 and RKO cells were significantly augmented. Ni(II) also significantly decreased the protein expression of IDH1 and the synthesis rate of NAPDH, which competitively inhibited α-ketoglutarate (α-KG) generation. The downregulation of IDH1 not only promoted β-catenin accumulation in the cell nucleus in a HIF-1ɑ signaling-dependent manner but also induced the expression of the transcription factor SOX2 to maintain the stemness properties of cancer cells. Moreover, IDH1 expression negatively correlated with the clinicopathologic characteristics of READ. CONCLUSION These findings demonstrate that chronic and continuous release of Ni(II) to the microenvironment suppresses IDH1 expression and augments the stemness properties of cancer cells via the activation HIF-1ɑ/β-catenin/SOX2 pathway to enhance local tumor recurrence in patients with implanted Nickel-containing alloys at surgical sites.
Collapse
Affiliation(s)
- Lingqiao Wang
- Department of Environmental Hygiene, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, PR China
| | - Shengnan He
- Biobank of Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen 518035, PR China
| | - Zhen Xiong
- Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430015, PR China
| | - Jingxiao Lu
- Biobank of Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen 518035, PR China
| | - Yuntao Lin
- Department of Oral and Maxillofacial Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, PR China
| | - Huidong Jin
- Department of Environmental Hygiene, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing 400038, PR China
| | - Lan Yang
- Biobank of Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen 518035, PR China; Department of Gastroenterology of Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen 518035, PR China.
| |
Collapse
|
3
|
Simona C, Jacopo F, Maria Enrica G, Francesca O, Riccardo M, Matteo P, Egidio M, Giuseppe DP. Development of a New Sequential Extraction Procedure of Nickel Species on Workplace Airborne Particulate Matter: Assessing the Occupational Exposure to Carcinogenic Metal Species. Int J Anal Chem 2018; 2018:3812795. [PMID: 30627165 PMCID: PMC6304502 DOI: 10.1155/2018/3812795] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 10/10/2018] [Accepted: 10/30/2018] [Indexed: 11/30/2022] Open
Abstract
Nickel (Ni) compounds and metallic Ni have many industrial and commercial applications, including their use in the manufacturing of stainless steel. Due to the specific toxicological properties of the different Ni species, there is a growing interest about the availability of analytical methods that allow specific risk assessment, particularly related to exposure to the Ni species classified as carcinogenic. In this paper, we described a speciation method of inorganic Ni compounds in airborne particulate matter, based on selective sequential extractions. The analytical method described in this paper allows the determination of soluble, sulfidic, metallic, and oxide Ni by a simple sequential extraction procedure and determination by Atomic Absorption Spectroscopy using small volumes of solutions and without long evaporation phases. The method has been initially set up on standard laboratory mixtures of known concentrations of different Ni salts. Then it has then been tested on airborne particulate matter (powder and filters) collected in different workstations of a large stainless steel production facility. The method has occurred effectively in the comparison of the obtained results with occupational exposure limit values set by the main international scientific and regulatory agencies for occupational safety and health, in order to prevent both toxic and carcinogenic effects in humans.
Collapse
Affiliation(s)
- Catalani Simona
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Fostinelli Jacopo
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Gilberti Maria Enrica
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Orlandi Francesca
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| | | | - Paganelli Matteo
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| | - Madeo Egidio
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| | - De Palma Giuseppe
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Italy
| |
Collapse
|
4
|
Mirhashemi A, Jahangiri S, Kharrazifard M. Release of nickel and chromium ions from orthodontic wires following the use of teeth whitening mouthwashes. Prog Orthod 2018; 19:4. [PMID: 29399703 PMCID: PMC5797726 DOI: 10.1186/s40510-018-0203-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/09/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Corrosion resistance is an important requirement for orthodontic appliances. Nickel and chromium may be released from orthodontic wires and can cause allergic reactions and cytotoxicity when patients use various mouthwashes to whiten their teeth. Our study aimed to assess the release of nickel and chromium ions from nickel titanium (NiTi) and stainless steel (SS) orthodontic wires following the use of four common mouthwashes available on the market. METHODS This in vitro, experimental study was conducted on 120 orthodontic appliances for one maxillary quadrant including five brackets, one band and half of the required length of SS, and NiTi wires. The samples were immersed in Oral B, Oral B 3D White Luxe, Listerine, and Listerine Advance White for 1, 6, 24, and 168 h. The samples immersed in distilled water served as the control group. Atomic absorption spectroscopy served to quantify the amount of released ions. RESULTS Nickel ions were released from both wires at all time-points; the highest amount was in Listerine and the lowest in Oral B mouthwashes. The remaining two solutions were in-between this range. The process of release of chromium from the SS wire was the same as that of nickel. However, the release trend in NiTi wires was not uniform. CONCLUSIONS Listerine caused the highest release of ions. Listerine Advance White, Oral B 3D White Luxe, and distilled water were the same in terms of ion release. Oral B showed the lowest amount of ion release.
Collapse
Affiliation(s)
- AmirHossein Mirhashemi
- Orthodontic Department, School of Dentistry, Tehran University of Medical Sciences, International Campus, Laser Research Center of Dentistry, Tehran, Iran
| | - Sahar Jahangiri
- School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
| | - MohammadJavad Kharrazifard
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
5
|
Lin CH, Chung CA, Wong JH, Chen BK, Chiu SJ, Klahan S, Lee YC, Chang WC. Involvement of L-type Ca²⁺ channel and toll-like receptor-4 in nickel-induced interleukin-8 gene expression. ENVIRONMENTAL TOXICOLOGY 2016; 31:5-12. [PMID: 25045119 DOI: 10.1002/tox.22016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 06/10/2014] [Accepted: 06/15/2014] [Indexed: 06/03/2023]
Abstract
The metal nickel (Ni(2+)) is found everywhere in our daily lives, including coins, costume jewelry, and even nuts and chocolates. Nickel poisoning can cause inflammatory reactions, respiratory diseases, and allergic contact dermatitis. To clarify the mechanism by which nickel induces mediators of inflammation, we used the human acute monocytic leukemia THP-1 cell line as a model. Interleukin (IL)-8 promoter activity as well as gene expression were tested by luciferase assay and real-time polymerase chain reaction. The underlying mechanisms of nickel-induced IL-8 were investigated. We found that nickel induced IL-8 gene expression via the L-type Ca(2+) channel, Toll-like receptor-4 (TRL-4) and nuclear factor NF-κB signal transduction pathways. Nickel activated NF-κB expression through extracellular signal-regulated kinase 1/2 phosphorylation and then increased IL-8 expression. Thus, the L-type Ca(2+) channel and TRL-4 play important roles in nickel-induced inflammatory gene expressions.
Collapse
Affiliation(s)
- Chia-Hsien Lin
- Department of Health Industry Management, School of Health Care Management, Kainan University, Taoyuan, Taiwan
| | - Chih-Ang Chung
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Jhen-Hong Wong
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ben-Kuen Chen
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, 701, Taiwan
| | - Siou-Jin Chiu
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Sukhontip Klahan
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chao Lee
- Ph.D. Program for Neural Regenerative Medicine, College of Medical Science and Technology, Center for Neurotrauma and Neuroregeneration, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Department of Pharmacy, Taipei Medical University-Wan Fang Hospital, Taipei, Taiwan
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| |
Collapse
|
6
|
Guo X, Zhang Y, Zhang Q, Fa P, Gui Y, Gao G, Cai Z. The regulatory role of nickel on H3K27 demethylase JMJD3 in kidney cancer cells. Toxicol Ind Health 2014; 32:1286-92. [PMID: 25427687 DOI: 10.1177/0748233714552687] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nickel compounds are an important class of environmental pollutants and carcinogens. Chronic exposure to nickel compounds has been connected with increased risks of numerous cancers, including lung and kidney cancers. But the precise mechanism by which nickel compounds exert their carcinogenic properties is not completely understood. In this study, kidney cancer cells namely human embryonic kidney 293-containing SV40 large T-antigen (HEK293T) and 786-0 were incubated with various concentrations of nickel chloride for 24 h before analysing the expression of three histone H3K27 methylation-modifying enzymes and H3K27me3 using quantitative real-time polymerase chain reaction, Western blot and immunofluorescence analyses. Our results showed that incubation of nickel chloride upregulated the expression of H3K27me3 demethylase jumonji domain-containing protein 3 (JMJD3) in kidney cancer cells, which was accompanied by the reduction in the protein level of H3K27me3. Enhanced demethylation of H3K27me3 may represent a novel mechanism underlying the carcinogenicity of nickel compounds.
Collapse
Affiliation(s)
- Xiaoqiang Guo
- Shenzhen Key Laboratory of Genitourinary Tumor, Shenzhen Second People's Hospital, Shenzhen, China Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang, Hebei, China Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yanmin Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, China
| | - Qiang Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, China
| | - Pingping Fa
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, China
| | - Yaoting Gui
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen, China
| | - Guoquan Gao
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Zhiming Cai
- Shenzhen Key Laboratory of Genitourinary Tumor, Shenzhen Second People's Hospital, Shenzhen, China
| |
Collapse
|
7
|
Vuskovic M, Barbuti AM, Goldsmith-Rooney E, Glassman L, Bovin N, Pass H, Tchou-Wong KM, Chen M, Yan B, Niu J, Qu Q, Costa M, Huflejt M. Plasma Anti-Glycan Antibody Profiles Associated with Nickel level in Urine. ACTA ACUST UNITED AC 2013; 6:302-312. [PMID: 24737927 PMCID: PMC3984841 DOI: 10.4172/jpb.1000295] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Nickel (Ni) compounds are widely used in industrial and commercial products including household and cooking utensils, jewelry, dental appliances and implants. Occupational exposure to nickel is associated with an increased risk for lung and nasal cancers, is the most common cause of contact dermatitis and has an extensive effect on the immune system. The purpose of this study was two-fold: (i) to evaluate immune response to the occupational exposure to nickel measured by the presence of anti-glycan antibodies (AGA) using a new biomarker-discovery platform based on printed glycan arrays (PGA), and (ii) to evaluate and compile a sequence of bioinformatics and statistical methods which are specifically relevant to PGA-derived information and to identification of putative "Ni toxicity signature". The PGAs are similar to DNA microarrays, but contain deposits of various carbohydrates (glycans) instead of spotted DNAs. The study uses data derived from a set of 89 plasma specimens and their corresponding demographic information. The study population includes three subgroups: subjects directly exposed to Nickel that work in a refinery, subjects environmentally exposed to Nickel that live in a city where the refinery is located and subjects that live in a remote location. The paper describes the following sequence of nine data processing and analysis steps: (1) Analysis of inter-array reproducibility based on benchmark sera; (2) Analysis of intra-array reproducibility; (3) Screening of data - rejecting glycans which result in low intra-class correlation coefficient (ICC), high coefficient of variation and low fluorescent intensity; (4) Analysis of inter-slide bias and choice of data normalization technique; (5) Determination of discriminatory subsamples based on multiple bootstrap tests; (6) Determination of the optimal signature size (cardinality of selected feature set) based on multiple cross-validation tests; (7) Identification of the top discriminatory glycans and their individual performance based on nonparametric univariate feature selection; (8) Determination of multivariate performance of combined glycans; (9) Establishing the statistical significance of multivariate performance of combined glycan signature. The above analysis steps have delivered the following results: inter-array reproducibility ρ=0.920 ± 0.030; intra-array reproducibility ρ=0.929 ± 0.025; 249 out of 380 glycans passed the screening at ICC>80%, glycans in selected signature have ICC ≥ 88.7%; optimal signature size (after quantile normalization)=3; individual significance for the signature glycans p=0.00015 to 0.00164, individual AUC values 0.870 to 0.815; observed combined performance for three glycans AUC=0.966, p=0.005, CI=[0.757, 0947]; specifity=94.4%, sensitivity=88.9%; predictive (cross-validated) AUC value 0.836.
Collapse
Affiliation(s)
- Marko Vuskovic
- Department of Computer Science, San Diego State University, San Diego, 92182 CA, USA
| | - Anna-Maria Barbuti
- Department of Cardiothoracic Surgery, NYU School of Medicine, New York, 10016 NY, USA
| | - Emma Goldsmith-Rooney
- Department of Cardiothoracic Surgery, NYU School of Medicine, New York, 10016 NY, USA
| | - Laura Glassman
- Department of Cardiothoracic Surgery, NYU School of Medicine, New York, 10016 NY, USA
| | - Nicolai Bovin
- Shemyakin Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Harvey Pass
- Department of Cardiothoracic Surgery, NYU School of Medicine, New York, 10016 NY, USA
| | - Kam-Meng Tchou-Wong
- Department of Environmental Medicine, NYU School of Medicine, New York, 10016 NY, USA
| | - Meichi Chen
- Lanzhou University School of Public Health, Lanzhou, Gansu 730000, China
| | - Bing Yan
- Lanzhou University School of Public Health, Lanzhou, Gansu 730000, China
| | - Jingping Niu
- Lanzhou University School of Public Health, Lanzhou, Gansu 730000, China
| | - Qingshan Qu
- Department of Environmental Medicine, NYU School of Medicine, New York, 10016 NY, USA
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, New York, 10016 NY, USA
| | - Margaret Huflejt
- Department of Cardiothoracic Surgery, NYU School of Medicine, New York, 10016 NY, USA
| |
Collapse
|
8
|
Giunta S, Castorina A, Scuderi S, Patti C, D’Agata V. Epidermal growth factor receptor (EGFR) and neuregulin (Neu) activation in human airway epithelial cells exposed to nickel acetate. Toxicol In Vitro 2012; 26:280-7. [DOI: 10.1016/j.tiv.2011.12.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 11/14/2011] [Accepted: 12/13/2011] [Indexed: 12/19/2022]
|
9
|
Danaei SM, Safavi A, Roeinpeikar SM, Oshagh M, Iranpour S, Omidekhoda M. Ion release from orthodontic brackets in 3 mouthwashes: An in-vitro study. Am J Orthod Dentofacial Orthop 2011; 139:730-4. [DOI: 10.1016/j.ajodo.2011.03.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Revised: 09/30/2010] [Accepted: 10/02/2009] [Indexed: 10/18/2022]
|
10
|
|
11
|
Zhang D, Li J, Costa M, Gao J, Huang C. JNK1 mediates degradation HIF-1alpha by a VHL-independent mechanism that involves the chaperones Hsp90/Hsp70. Cancer Res 2010; 70:813-23. [PMID: 20068160 DOI: 10.1158/0008-5472.can-09-0448] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Hypoxia-inducible factor-1alpha (HIF-1alpha) is a master transcription factor that is critical for the regulation of a variety of cellular functions. HIF-1alpha is rapidly degraded under normoxic conditions by ubiquitin-mediated proteasome pathway controlled by the tumor suppressor von Hippel Lindau (VHL). Several recent studies reveal that heat-shock proteins (Hsp) can regulate HIF-1alpha protein degradation by a VHL-independent pathway. Here, we demonstrate that the stress kinase c-Jun NH(2)-terminal kinase 1 (JNK1) is required for Hsp-dependent regulation of HIF-1alpha. Stabilization of HIF-1alpha was impaired in JNK1-/- cells but could be rescued by JNK1 reconstitution under hypoxic conditions. These effects could be phenocopied in other cell settings by JNK1 silencing. Accordingly, HIF-1 transcriptional activity and target gene expression were dramatically reduced in JNK1-/- cells. Further, decreased levels of endogenous Hsp90/Hsp70 proteins in JNK1-/- cells affected the protective roles of these chaperones in stabilizing newly synthesized HIF-1alpha, whereas enforced expression of Hsp90/Hsp70 in JNK1-/- cells increased HIF-1alpha stability relative to parental control cells. Furthering this connection, we also found that defective expression of the Hsp90 acetyltransferase HDAC6 in JNK1-/- cells was associated with reduced Hsp90 chaperone activity. Taken together, our studies define a novel function for JNK1 in regulating HIF-1alpha turnover by a VHL-independent mechanism.
Collapse
Affiliation(s)
- Dongyun Zhang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, New York 10987, USA
| | | | | | | | | |
Collapse
|
12
|
Su YY, Shih CC, Chen LC, Shih CM, Lin SJ. Heterogeneous surface properties on wallstents. SURF INTERFACE ANAL 2009. [DOI: 10.1002/sia.3152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
13
|
Pérez-Coll CS, Sztrum AA, Herkovits J. Nickel tissue residue as a biomarker of sub-toxic exposure and susceptibility in amphibian embryos. CHEMOSPHERE 2008; 74:78-83. [PMID: 18992908 DOI: 10.1016/j.chemosphere.2008.09.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 08/22/2008] [Accepted: 09/04/2008] [Indexed: 05/27/2023]
Abstract
Although low level exposure to physicochemical agents is the most common environmental scenario, their effects on living organisms are very controversial. However, there is an increasing need to integrate low level exposures from risk assessment to remediation purposes. This study focus on the possibility to employ Ni tissue residue values as biomarkers of sub-toxic exposure and susceptibility to this metal in a range of almost pristine to sub-toxic concentrations for Rhinella arenarum embryos. For that purpose, three batches of amphibian embryos were pretreated during 10 days with three increasing concentrations of Ni starting in 2, 8 and 20 microg Ni(2+) L(-1) and ending in 16, 64 and 160 microg Ni(2+) L(-1) (in natural fresh waters this value ranges from 2 to 10 microgL(-1); the LC(50)-24h for R. arenarum is 26.2mg Ni(2+) L(-1)). For the experimental conditions, the Ni tissue residue values at 360 h post exposure were 0.5, 2.1 and 3.6 microg Ni g(-1) embryo w/w, respectively, corresponding to BCFs of 31, 33 and 23. The susceptibility to Ni in those experimental embryos was evaluated by means of challenge exposures to three lethal concentrations of this metal (10, 20 and 30 mg Ni(2+) L(-1)), registering survival during the following 10 days of treatment. As a general pattern, the lower, intermediate and higher pretreatments with Ni resulted in enhanced, neutral and adverse effects on embryonic survival, respectively. Thus, sub-toxic exposure to Ni could modify the resistance of the amphibian embryo to this metal and Ni tissue residue values could be considered as biomarkers of both, exposure and susceptibility.
Collapse
Affiliation(s)
- Cristina S Pérez-Coll
- Programa de Seguridad Química, Instituto de Ciencias Ambientales y Salud, Fundación PROSAMA, Ciudad de Buenos Aires, Argentina
| | | | | |
Collapse
|
14
|
Miller AC, Bonait-Pellie C, Merlot RF, Michel J, Stewart M, Lison PD. Leukemic transformation of hematopoietic cells in mice internally exposed to depleted uranium. Mol Cell Biochem 2007; 279:97-104. [PMID: 16283518 DOI: 10.1007/s11010-005-8226-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Depleted uranium (DU) is a dense heavy metal used in military applications. During military conflicts, US military personnel have been wounded by DU shrapnel. The health effects of embedded DU are unknown. Published data from our laboratory demonstrated that DU exposure in vitro can transform immortalized human osteoblast cells (HOS) to the tumorigenic phenotype. Results from our laboratory have also shown that DU is genotoxic and mutagenic in cultured human cells. Internalized DU could be a carcinogenic risk and concurrent alpha particle and heavy metal toxic effects complicate this potential risk. Anecdotal reports have suggested that DU can cause leukemia. To better assess this risk, we have developed an in vivo leukemogenesis model. This model involves using murine hematopoietic cells (FDC-P1) that are dependent on stimulation by granulocyte-macrophage colony stimulating factor (GM-CSF) or interleukin 3 (IL-3) and injected into mice to produce myeloid leukemia. Although immortalized, these cells are not tumorigenic on subcutaneous inoculation in mice. Intravenous injection of FDC-P1 cells into DU-implanted DBA/2 mice was followed by the development of leukemias in 76% of all mice implanted with DU pellets. In contrast, only 12% of control mice developed leukemia. Karyotypic analysis confirmed that the leukemias originated from FDC-P1 cells. The growth properties of leukemic cells from bone marrow, spleen, and lymph node were assessed and indicate that the FDC-P1 cells had become transformed in vivo. The kidney, spleen, bone marrow, muscle, and urine showed significant elevations in tissue uranium levels prior to induction of leukemia. These results demonstrated that a DU altered in vivo environment may be involved in the pathogenesis of DU induced leukemia in an animal model.
Collapse
Affiliation(s)
- Alexandra C Miller
- Applied Cellular Radiobiology Department, Armed Forces Radiobiology Research, Institute, Bethesda, Maryland 20889-5603, USA.
| | | | | | | | | | | |
Collapse
|
15
|
Karaczyn AA, Golebiowski F, Kasprzak KS. Ni(II) affects ubiquitination of core histones H2B and H2A. Exp Cell Res 2006; 312:3252-9. [PMID: 16870173 DOI: 10.1016/j.yexcr.2006.06.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 06/19/2006] [Accepted: 06/20/2006] [Indexed: 11/30/2022]
Abstract
The molecular mechanisms of nickel-induced malignant cell transformation include effects altering the structure and covalent modifications of core histones. Previously, we found that exposure of cells to Ni(II) resulted in truncation of histones H2A and H2B and thus elimination of some modification sites. Here, we investigated the effect of Ni(II) on one such modification, ubiquitination, of histones H2B and H2A in nuclei of cultured 1HAEo- and HPL1D human lung cells. After 1-5 days of exposure, Ni(II) up to 0.25 mM stimulated mono-ubiquitination of both histones, while at higher concentrations a suppression was found. Di-ubiquitination of H2A was not affected except for a drop after 5 days at 0.5 mM Ni(II). The decrease in mono-ubiquitination coincided with the appearance of truncated H2B that lacks the K120 ubiquitination site. However, prevention of truncation did not avert the decrease of H2B ubiquitination, indicating mechanistic independence of these effects. The changes in H2B ubiquitination did not fully coincide with concurrent changes in the nuclear levels of the ubiquitin-conjugating enzymes Rad6 and UbcH6. Overall, our results suggest that dysregulation of H2B ubiquitination is a part of Ni(II) adverse effects on gene expression and DNA repair which may assist in cell transformation.
Collapse
Affiliation(s)
- Aldona A Karaczyn
- Laboratory of Comparative Carcinogenesis, National Cancer Institute at Frederick, Frederick, MD 21702-1201, USA
| | | | | |
Collapse
|
16
|
Abstract
Metals are essential for the normal functioning of living organisms. Their uses in biological systems are varied, but are frequently associated with sites of critical protein function, such as zinc finger motifs and electron or oxygen carriers. These functions only require essential metals in minute amounts, hence they are termed trace metals. Other metals are, however, less beneficial, owing to their ability to promote a wide variety of deleterious health effects, including cancer. Metals such as arsenic, for example, can produce a variety of diseases ranging from keratosis of the palms and feet to cancers in multiple target organs. The nature and type of metal-induced pathologies appear to be dependent on the concentration, speciation, and length of exposure. Unfortunately, human contact with metals is an inescapable consequence of human life, with exposures occurring from both occupational and environmental sources. A uniform mechanism of action for all harmful metals is unlikely, if not implausible, given the diverse chemical properties of each metal. In this chapter we will review the mechanisms of carcinogenesis of arsenic, cadmium, chromium, and nickel, the four known carcinogenic metals that are best understood. The key areas of speciation, bioavailability, and mechanisms of action are discussed with particular reference to the role of metals in alteration of gene expression and maintenance of genomic integrity.
Collapse
Affiliation(s)
- Troy R Durham
- Centre for Cellular and Molecular Biology, School of Biological and Chemical Sciences, Deakin University, 221 Burwood Highway, Burwood, Victoria, Australia 3125.
| | | |
Collapse
|
17
|
Bentahar Z, Bourzgui F, Zertoubi M, El Adioui-Joundy S. Dégradation électrochimique des matériaux métalliques utilisés en orthodontie. Int Orthod 2005. [DOI: 10.1016/s1761-7227(05)82629-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
18
|
Lamberti M, Perfetto B, Costabile T, Canozo N, Baroni A, Liotti F, Sannolo N, Giuliano M. In vitro evaluation of matrix metalloproteinases as predictive testing for nickel, a model sensitizing agent. Toxicol Appl Pharmacol 2004; 195:321-30. [PMID: 15020194 DOI: 10.1016/j.taap.2003.09.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2003] [Accepted: 09/10/2003] [Indexed: 11/15/2022]
Abstract
The identification of potential damage due to chemical exposure in the workplace is a major health and regulatory concern. Traditional tests that measure both sensitization and elicitation responses require the use of animals. An alternative to this widespread use of experimental animals could have a crucial impact on risk assessment, especially for the preliminary screening of new molecules. We developed an in vitro model for the screening of potential toxic compounds. Human keratinocytes (HaCat) were used as target cells while matrix metalloproteinases (MMP) were selected as responders because they are key enzymes involved in extracellular matrix (ECM) degradation in physiological and pathological conditions. Chemical exposure was performed using nickel sulphate as a positive tester. Nickel contact induced upregulation of MMP-2 and IL-8 mRNA production. Molecular activation occurred even at very low nickel concentrations even though no phenotypic changes were observed. MMP-9 accumulation was found in the medium of treated cells with respect to controls. These observations led to the hypothesis that even minimal exposure can accumulate transcriptional activity resulting in long-term clinical signs after contact. Our simple in vitro model can be applied as a useful preliminary complement to the animal studies to screen the effects of new potential toxic compounds.
Collapse
Affiliation(s)
- Monica Lamberti
- Occupational Medicine Section, Department of Experimental Medicine, Medical School, II University of Naples, 80128 Naples, Italy
| | | | | | | | | | | | | | | |
Collapse
|