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Hutter HP, Wallner P, Moshammer H, Marsh G. Dust and Cobalt Levels in the Austrian Tungsten Industry: Workplace and Human Biomonitoring Data. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13090931. [PMID: 27657104 PMCID: PMC5036763 DOI: 10.3390/ijerph13090931] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/16/2016] [Accepted: 09/13/2016] [Indexed: 11/16/2022]
Abstract
In general, routine industrial hygiene (IH) data are collected not to serve for scientific research but to check for compliance with occupational limit values. In the preparation of an occupational retrospective cohort study it is vital to test the validity of the exposure assessment based on incomplete (temporal coverage, departments) IH data. Existing IH data from a large hard metal plant was collected. Individual workers’ exposure per year and department was estimated based on linear regression of log-transformed exposure data for dust, tungsten, and cobalt. Estimated data were back-transformed, and for cobalt the validity of the estimates was confirmed by comparison with individual cobalt concentrations in urine. Air monitoring data were available from 1985 to 2012 and urine tests from the years 2008 to 2014. A declining trend and significant differences among departments was evident for all three air pollutants. The estimated time trend fitted the time trend in urine values well. At 1 mg/m3, cobalt in the air leads to an excretion of approximately 200 µg/L cobalt in urine. Cobalt levels in urine were significantly higher in smokers with an interaction effect between smoking and air concentrations. Exposure estimates of individual workers are generally feasible in the examined plant, although some departments are not documented sufficiently enough. Additional information (expert knowledge) is needed to fill these gaps.
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Affiliation(s)
- Hans-Peter Hutter
- Institute of Environmental Health, Center for Public Health, Medical University Vienna, 1090 Vienna, Austria.
- Medicine and Environmental Protection, 1080 Vienna, Austria.
| | - Peter Wallner
- Institute of Environmental Health, Center for Public Health, Medical University Vienna, 1090 Vienna, Austria.
- Medicine and Environmental Protection, 1080 Vienna, Austria.
| | - Hanns Moshammer
- Institute of Environmental Health, Center for Public Health, Medical University Vienna, 1090 Vienna, Austria.
| | - Gary Marsh
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, 15261 PA, USA.
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52
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Efficient Removal of Co2+ from Aqueous Solution by 3-Aminopropyltriethoxysilane Functionalized Montmorillonite with Enhanced Adsorption Capacity. PLoS One 2016; 11:e0159802. [PMID: 27448094 PMCID: PMC4957767 DOI: 10.1371/journal.pone.0159802] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 07/10/2016] [Indexed: 11/19/2022] Open
Abstract
To achieve a satisfactory removal efficiency of heavy metal ions from wastewater, silane-functionalized montmorillonite with abundant ligand-binding sites (-NH2) was synthesized as an efficient adsorbent. Ca-montmorillonite (Ca-Mt) was functionalized with 3-aminopropyl triethoxysilane (APTES) to obtain the APTES-Mt products (APTES1.0CEC-Mt, APTES2.0CEC-Mt, APTES3.0CEC-Mt, APTES4.0CEC-Mt) with enhanced adsorption capacity for Co2+. The physico-chemical properties of the synthesized adsorbents were characterized by spectroscopic and microscopic methods, and the results demonstrated that APTES was successfully intercalated into the gallery of Ca-Mt or grafted onto the surface of Ca-Mt through Si-O bonds. The effect of solution pH, ionic strength, temperature, initial concentrations and contact time on adsorption of Co2+ by APTES-Mt was evaluated. The results indicated that adsorption of Co2+ onto Ca-Mt, APTES1.0CEC-Mt and APTES2.0CEC-Mt can be considered to be a pseudo-second-order process. In contrast, adsorption of Co2+ onto APTES3.0CEC-Mt and APTES4.0CEC-Mt fitted well with the pseudo-first-order kinetics. The adsorption isotherms were described by the Langmuir model, and the maximum adsorption capacities of APTES1.0CEC-Mt, APTES2.0CEC-Mt, APTES3.0CEC-Mt and APTES4.0CEC-Mt were 25.1, 33.8, 61.6, and 61.9 mg·g-1, respectively. In addition, reaction temperature had no impact on the adsorption capacity, while both the pH and ionic strength significantly affected the adsorption process. A synergistic effect of ion exchange and coordination interactions on adsorption was observed, thereby leading to a significant enhancement of Co2+ adsorption by the composites. Thus, APTES-Mt could be a cost-effective and environmental-friendly adsorbent, with potential for treating Co2+-rich wastewater.
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Lan AP, Chen J, Chai ZF, Hu Y. The neurotoxicity of iron, copper and cobalt in Parkinson's disease through ROS-mediated mechanisms. Biometals 2016; 29:665-78. [PMID: 27349232 DOI: 10.1007/s10534-016-9942-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/18/2016] [Indexed: 12/14/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease with gradual loss of dopaminergic neurons. Despite extensive research in the past decades, the etiology of PD remains elusive. Nevertheless, multiple lines of evidence suggest that oxidative stress is one of the common causes in the pathogenesis of PD. It has also been suggested that heavy metal-associated oxidative stress may be implicated in the etiology and pathogenesis of PD. Here we review the roles of redox metals, including iron, copper and cobalt, in PD. Iron is a highly reactive element and deregulation of iron homeostasis is accompanied by concomitant oxidation processes in PD. Copper is a key metal in cell division process, and it has been shown to have an important role in neurodegenerative diseases such as PD. Cobalt induces the generation of reactive oxygen species (ROS) and DNA damage in brain tissues.
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Affiliation(s)
- A P Lan
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China
| | - J Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China
| | - Z F Chai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China.,School of Radiological and Interdisciplinary Sciences, Soochow University, Suzhou, 215123, China
| | - Y Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China.
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54
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Beraudi A, Bianconi E, Catalani S, Canaider S, De Pasquale D, Apostoli P, Bordini B, Stea S, Toni A, Facchin F. In vivo response of heme-oxygenase-1 to metal ions released from metal-on-metal hip prostheses. Mol Med Rep 2016; 14:474-80. [PMID: 27176599 DOI: 10.3892/mmr.2016.5245] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 01/20/2016] [Indexed: 11/06/2022] Open
Abstract
Metal ion release and accumulation is considered to be a factor responsible for the high failure rates of metal-on-metal (MoM) hip implants. Numerous studies have associated the presence of these ions, besides other factors, including a hypoxia‑like response and changes in pH due to metal corrosion leading to the induction of the oxidative stress response. The aim of the present study was to verify whether, in patients with a MoM hip prosthesis, mRNA and protein expression of HMOX‑1 was modulated by the presence of metal ions and whether patients without prostheses exhibit a different expression pattern of this enzyme. The study was conducted on 22 matched pairs of patients with and without prostheses, for a total of 44 samples. Ion dosage was determined using inductively coupled plasma mass spectrometry equipped with dynamic cell reaction. HMOX‑1 gene expression was quantified by reverse transcription-quantitative polymerase chain reaction and HMOX‑1 protein expression was analyzed using an enzyme-linked immunosorbent assay. The results demonstrated that although there were significant differences in the metallic ion concentrations amongst the two groups of patients, there was no correlation between circulating levels of cobalt (Co) and chromium (Cr), and HMOX‑1 gene and protein expression. Additionally, there was no significant difference in the protein expression levels of HMOX‑1 between the two groups. In conclusion, it was demonstrated that circulating Co and Cr ions released by articular prosthetics do not induce an increase in HMOX‑1 mRNA and protein expression at least 3.5 years after the implant insertion. The present study suggests that involvement of HMOX‑1 may be excluded from future studies and suggests that other antioxidant enzymes, including superoxide dismutase, glutathione peroxidase and reductase should be investigated.
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Affiliation(s)
- Alina Beraudi
- Medical Technology Laboratory, Rizzoli RIT Department ‑ Research, Innovation and Technology, Rizzoli Orthopaedic Institute, I‑40136 Bologna, Italy
| | - Eva Bianconi
- Department of Experimental, Diagnostic and Specialty Medicine, (DIMES), Unit of Histology, Embryology and Applied Biology, University of Bologna, I‑40136 Bologna, Italy
| | - Simona Catalani
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, I‑25100 Brescia, Italy
| | - Silvia Canaider
- Department of Experimental, Diagnostic and Specialty Medicine, (DIMES), Unit of Histology, Embryology and Applied Biology, University of Bologna, I‑40136 Bologna, Italy
| | - Dalila De Pasquale
- Medical Technology Laboratory, Rizzoli RIT Department ‑ Research, Innovation and Technology, Rizzoli Orthopaedic Institute, I‑40136 Bologna, Italy
| | - Pietro Apostoli
- Unit of Occupational Health and Industrial Hygiene, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, I‑25100 Brescia, Italy
| | - Barbara Bordini
- Medical Technology Laboratory, Rizzoli RIT Department ‑ Research, Innovation and Technology, Rizzoli Orthopaedic Institute, I‑40136 Bologna, Italy
| | - Susanna Stea
- Medical Technology Laboratory, Rizzoli RIT Department ‑ Research, Innovation and Technology, Rizzoli Orthopaedic Institute, I‑40136 Bologna, Italy
| | - Aldo Toni
- Medical Technology Laboratory, Rizzoli RIT Department ‑ Research, Innovation and Technology, Rizzoli Orthopaedic Institute, I‑40136 Bologna, Italy
| | - Federica Facchin
- Department of Experimental, Diagnostic and Specialty Medicine, (DIMES), Unit of Histology, Embryology and Applied Biology, University of Bologna, I‑40136 Bologna, Italy
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55
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Suh M, Thompson CM, Brorby GP, Mittal L, Proctor DM. Inhalation cancer risk assessment of cobalt metal. Regul Toxicol Pharmacol 2016; 79:74-82. [PMID: 27177823 DOI: 10.1016/j.yrtph.2016.05.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/06/2016] [Accepted: 05/08/2016] [Indexed: 11/29/2022]
Abstract
Cobalt compounds (metal, salts, hard metals, oxides, and alloys) are used widely in various industrial, medical and military applications. Chronic inhalation exposure to cobalt metal and cobalt sulfate has caused lung cancer in rats and mice, as well as systemic tumors in rats. Cobalt compounds are listed as probable or possible human carcinogens by some agencies, and there is a need for quantitative cancer toxicity criteria. The U.S. Environmental Protection Agency has derived a provisional inhalation unit risk (IUR) of 0.009 per μg/m(3) based on a chronic inhalation study of soluble cobalt sulfate heptahydrate; however, a recent 2-year cancer bioassay affords the opportunity to derive IURs specifically for cobalt metal. The mechanistic data support that the carcinogenic mode of action (MOA) is likely to involve oxidative stress, and thus, non-linear/threshold mechanisms. However, the lack of a detailed MOA and use of high, toxic exposure concentrations in the bioassay (≥1.25 mg/m(3)) preclude derivation of a reference concentration (RfC) protective of cancer. Several analyses resulted in an IUR of 0.003 per μg/m(3) for cobalt metal, which is ∼3-fold less potent than the provisional IUR. Future research should focus on establishing the exposure-response for key precursor events to improve cobalt metal risk assessment.
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Affiliation(s)
- Mina Suh
- ToxStrategies, Inc., Mission Viejo, CA, United States
| | | | | | - Liz Mittal
- ToxStrategies, Inc., Katy, TX, United States
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56
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Sighinolfi GL, Artoni E, Gatti AM, Corsi L. Carcinogenic potential of metal nanoparticles in BALB/3T3 cell transformation assay. ENVIRONMENTAL TOXICOLOGY 2016; 31:509-519. [PMID: 25358123 DOI: 10.1002/tox.22063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 09/16/2014] [Accepted: 10/01/2014] [Indexed: 06/04/2023]
Abstract
Metal-based nanoparticles (NPs), are currently used in many application fields including consumer products, pharmaceuticals, and biomedical treatments. In spite to their wide applications, an in-depth study of their potential toxic effects is still lacking. The aim of the present research was to investigate the potential initiator or promoter-like activity of different metallic NPs such as gold, iron, cobalt, and cerium using the Balb/3T3 two-stage transformation assay. The results indicated that all the selected metallic NPs, except for cobalt, when used as initiators did not induce any transformation in Balb/3T3 cell line. Moreover, Au and Fe3 O4 NPs, when used in place of the tumor promoter treatment TPA, increased significantly the number of Foci/dish as compared to the MCA treatment alone. The number of Foci/dish was 2.6 for Au NPs and 2.13 for Fe3 O4 ones, similar to those obtained by the positive control treatment (MCA + TPA), whereas 1.27 for MCA treatment alone. On the contrary, CeO2 NPs did not show any difference in the number of Foci/dish, as compared to MCA alone, but it decreased the number of foci by 65% in comparison to the positive control (MCA + TPA). As expected, cobalt NPs showed an increased cytotoxicity and only a few surviving cells were found at the time of analysis showing a number of Foci/dish of 0.13. For the first time, our data clearly showed that Au and Fe3 O4 NPs act as promoters in the two stage transformational assay, suggesting the importance to fully investigate the NPs carcinogenic potential with different models.
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Affiliation(s)
- G L Sighinolfi
- Life Sciences Department, University of Modena and Reggio Emilia, Modena, Italy
| | - E Artoni
- Department of Neuroscience, Biomedical and Metabolic Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - A M Gatti
- Institute for Advanced Sciences Convergence & Int'l Clean Water Institute, Herndon, Virginia
| | - L Corsi
- Life Sciences Department, University of Modena and Reggio Emilia, Modena, Italy
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57
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Xie H, Smith LJ, Holmes AL, Zheng T, Pierce Wise J. The cytotoxicity and genotoxicity of soluble and particulate cobalt in human lung epithelial cells. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2016; 57:282-287. [PMID: 27040722 DOI: 10.1002/em.22009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/08/2016] [Accepted: 03/08/2016] [Indexed: 06/05/2023]
Abstract
Cobalt is a toxic metal used in various industrial applications leading to adverse lung effects by inhalation. Cobalt is considered a possible human carcinogen with the lung being a primary target. However, few studies have considered cobalt-induced toxicity in human lung cells, especially normal lung epithelial cells. Therefore, in this study, we sought to determine the cytotoxicity and genotoxicity of particulate and soluble cobalt in normal primary human lung epithelial cells. Cobalt oxide and cobalt chloride were used as representative particulate and soluble cobalt compounds, respectively. Exposure to both particulate and soluble cobalt induced a concentration-dependent increase in cytotoxicity, genotoxicity, and intracellular cobalt ion levels. Based on intracellular cobalt ion levels, we found that soluble and particulate cobalt induced similar cytotoxicity while soluble cobalt was more genotoxic than particulate cobalt. These data indicate that cobalt compounds are cytotoxic and genotoxic to human lung epithelial cells.
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Affiliation(s)
- Hong Xie
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Sciences, University of Southern Maine, Portland, Maine, 04104
- Toxikon Corp, Bedford, Massachusetts, 01730
| | - Leah J Smith
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Sciences, University of Southern Maine, Portland, Maine, 04104
| | - Amie L Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Sciences, University of Southern Maine, Portland, Maine, 04104
- Department of Radiation Oncology, Dana Farber Cancer Institute, 450 Brookline Ave, Boston, Massachusetts, 02215
| | - Tongzhang Zheng
- Department of Epidemiology, Brown University, Providence, Rhode Island
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Sciences, University of Southern Maine, Portland, Maine, 04104
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58
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Fedorova TN, Kulikova OI, Stvolinsky SL, Orlova VS. The protective effect of (S)-trolox–carnosine on a human neuroblastoma SH-SY5Y cell culture under the impact of heavy metals. NEUROCHEM J+ 2016. [DOI: 10.1134/s1819712416010086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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59
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Ciğerci İH, Ali MM, Kaygısız ŞY, Liman R. Genotoxicity assessment of cobalt chloride in Eisenia hortensis earthworms coelomocytes by comet assay and micronucleus test. CHEMOSPHERE 2016; 144:754-757. [PMID: 26408983 DOI: 10.1016/j.chemosphere.2015.09.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 06/05/2023]
Abstract
Cobalt and its different compounds are extensively used worldwide and considered as possible environmental pollutant. Earthworms are useful model organism and its different species are used to monitor soil pollution. No study has been found to detect cobalt chloride (CoCl2) genotoxicity in earthworms. So, current study aimed to evaluate CoCl2 induced genotoxicity in Eisenia hortensis earthworms coelomocytes by alkaline comet assay (CA) and micronucleus (MN) test. The earthworms (n = 10 for each group) were exposed to different series of CoCl2 concentrations (100 ppm, 200 ppm, 300 ppm, 400 ppm, 500 ppm, 600 ppm) to find LD50. The LD50 for CoCl2 was found at 226 ppm. Then, doses of LD50/2, LD50 and 2XLD50 for 48 h were used. CA and MN demonstrated the significant increase (P < 0.05) in DNA damage and chromosomal aberrations. Dose dependent relationship was found. Highest DNA damage and chromosomal aberrations were noticed at 2XLD50. The results concluded that CoCl2 induced DNA damage, cytokinesis failure and chromosomal aberrations in E. hortensis earthworms.
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Affiliation(s)
- İbrahim Hakkı Ciğerci
- Afyon Kocatepe University, Faculty of Science and Literatures, Molecular Biology and Genetic Department, 03200, Afyonkarahisar, Turkey.
| | - Muhammad Muddassir Ali
- Afyon Kocatepe University, Faculty of Science and Literatures, Molecular Biology and Genetic Department, 03200, Afyonkarahisar, Turkey
| | - Şöhret Yüksek Kaygısız
- Afyon Kocatepe University, Faculty of Science and Literatures, Molecular Biology and Genetic Department, 03200, Afyonkarahisar, Turkey
| | - Recep Liman
- Uşak University, 1 September Campus Faculty of Arts and Sciences Molecular Biology and Genetic Department, 64200 Uşak, Turkey
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60
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Raman V, Suresh S, Savarimuthu PA, Raman T, Tsatsakis AM, Golokhvast KS, Vadivel VK. Synthesis of Co 3O 4 nanoparticles with block and sphere morphology, and investigation into the influence of morphology on biological toxicity. Exp Ther Med 2015; 11:553-560. [PMID: 26893646 DOI: 10.3892/etm.2015.2946] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 11/11/2015] [Indexed: 01/25/2023] Open
Abstract
In the present study, cobalt oxide (Co3O4) magnetic nanoparticles with block and sphere morphologies were synthesized using various surfactants, and the toxicity of the particles was analyzed by monitoring biomarkers of nanoparticle toxicity in zebrafish. The use of tartarate as a surfactant produced highly crystalline blocks of Co3O4 nanoparticles with pores on the sides, whereas citrate lead to the formation of nanoparticles with a spherical morphology. Co3O4 structure, crystallinity, size and morphology were studied using X-ray diffractogram and field emission scanning electron microscopy. Following an increase in nanoparticle concentration from 1 to 200 ppm, there was a corresponding increase in nitric oxide (NO) generation, induced by both types of nanoparticles [Co3O4-NP-B (block), r=0.953; Co3O4-NP-S (sphere), r=1.140]. Comparative analyses indicated that both types of nanoparticle produced significant stimulation at ≥5 ppm (P<0.05) compared with a control. Upon analyzing the effect of nanoparticle morphology on NO generation, it was observed that Co3O4-NP-S was more effective compared with Co3O4-NP-B (5 and 100 ppm, P<0.05; 200 ppm, P<0.01). Exposure to both types of nanoparticles produced reduction in liver glutathione (GSH) activity with corresponding increase in dose (Co3O4-NP-B, r=-0.359; Co3O4-NP-S, r=-0.429). However, subsequent analyses indicated that Co3O4-NP-B was more potent in inhibiting liver GSH activity compared with Co3O4-NP-S. Co3O4-NP-B proved to be toxic at 5 ppm (P<0.05) and GSH activity was almost completely inhibited at 200 ppm. A similar toxicity was observed with both types of Co3O4-NPs against brain levels of acetylcholinesterase (AChE; Co3O4-NP-B, r=-0.180; Co3O4-NP-S, r=-0.230), indicating the ability of synthesized Co3O4-NPs to cross the blood-brain barrier and produce neuronal toxicity. Co3O4-NP-B showed increased inhibition of brain AChE activity compared with Co3O4-NP-S (1,5, and 10 ppm, P<0.05; 50, 100 and 200 ppm, P<0.01). These results suggested that the morphology of nanoparticle and surface area contribute to toxicity, which may have implications for their biological application.
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Affiliation(s)
- Venkataramanan Raman
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
| | - Shruthi Suresh
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
| | | | - Thiagarajan Raman
- Department of Bioengineering, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India; Department of Centre for Research on Infectious Diseases, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
| | - Aristides Michael Tsatsakis
- Department of Forensic Sciences and Toxicology, Medical School, University of Crete, Heraklion 71003, Greece; Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok 690990, Russian Federation
| | - Kiril Sergeevich Golokhvast
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok 690990, Russian Federation
| | - Vinod Kumar Vadivel
- Department of Chemistry, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613401, India
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61
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Jiang L, Xiao S, Chen J. Removal behavior and mechanism of Co(II) on the surface of Fe–Mn binary oxide adsorbent. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.03.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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62
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Behl M, Stout MD, Herbert RA, Dill JA, Baker GL, Hayden BK, Roycroft JH, Bucher JR, Hooth MJ. Comparative toxicity and carcinogenicity of soluble and insoluble cobalt compounds. Toxicology 2015; 333:195-205. [DOI: 10.1016/j.tox.2015.04.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/01/2015] [Accepted: 04/14/2015] [Indexed: 10/23/2022]
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63
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Mobasheri A, Proudman CJ. Cobalt chloride doping in racehorses: Concerns over a potentially lethal practice. Vet J 2015; 205:335-8. [PMID: 26093914 DOI: 10.1016/j.tvjl.2015.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 04/01/2015] [Accepted: 04/02/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Ali Mobasheri
- King Abdulaziz University, Jeddah 21589, Saudi Arabia; School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Duke of Kent Building, Guildford, Surrey, GU2 7XH, UK.
| | - Christopher J Proudman
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Duke of Kent Building, Guildford, Surrey, GU2 7XH, UK
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64
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Lee JN, Kim SG, Lim JY, Dutta RK, Kim SJ, Choe SK, So HS, Park R. 3-Aminotriazole protects from CoCl2-induced ototoxicity by inhibiting the generation of reactive oxygen species and proinflammatory cytokines in mice. Arch Toxicol 2015; 90:781-91. [DOI: 10.1007/s00204-015-1506-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 03/16/2015] [Indexed: 12/20/2022]
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65
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Bresson C, Spezia R, Solari PL, Jankowski CK, Den Auwer C. XAS examination of glutathione–cobalt complexes in solution. J Inorg Biochem 2015; 142:126-31. [DOI: 10.1016/j.jinorgbio.2014.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 10/17/2014] [Accepted: 10/17/2014] [Indexed: 01/09/2023]
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66
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Walsh D, Sanchez-Ballester NM, Ting VP, Hall SR, Terry LR, Weller MT. Visible light promoted photocatalytic water oxidation: effect of metal oxide catalyst composition and light intensity. Catal Sci Technol 2015. [DOI: 10.1039/c5cy01203a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simply prepared low-cost nanoparticulate transition metal oxides were used as catalysts in visible light promoted water oxidations. The activity using daylight equivalent light intensities was assessed.
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Affiliation(s)
- Dominic Walsh
- Department of Chemistry
- University of Bath
- Claverton Down
- Bath BA2 7AY
- UK
| | | | - Valeska P. Ting
- Department of Chemical Engineering
- University of Bath
- Bath BA2 7AY
- UK
| | - Simon R. Hall
- School of Chemistry
- University of Bristol
- Cantocks Close
- Bristol
- UK
| | - Lui R. Terry
- School of Chemistry
- University of Bristol
- Cantocks Close
- Bristol
- UK
| | - Mark T. Weller
- Department of Chemistry
- University of Bath
- Claverton Down
- Bath BA2 7AY
- UK
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67
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Li CL, Huang CC, Periasamy AP, Roy P, Wu WC, Hsu CL, Chang HT. Synthesis of photoluminescent carbon dots for the detection of cobalt ions. RSC Adv 2015. [DOI: 10.1039/c4ra11704b] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Photoluminescent carbon dots (C-dots) were prepared from l-cysteine through a simple hydrothermal process and used for selective detection of cobalt ions (Co2+), based on analyte induced aggregation and photoluminescence quenching of C-dots.
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Affiliation(s)
- Chi-Lin Li
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology
- National Taiwan Ocean University
- Keelung
- Taiwan
- Center of Excellence for the Oceans
| | | | - Prathik Roy
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Wei-Cheng Wu
- Department of Engineering and System Science
- National Tsing Hua University
- Hsinchu
- Taiwan
- Nano Science and Technology Program
| | - Chia-Lun Hsu
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry
- National Taiwan University
- Taipei 10617
- Taiwan
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68
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Smith LJ, Holmes AL, Kandpal SK, Mason MD, Zheng T, Wise JP. The cytotoxicity and genotoxicity of soluble and particulate cobalt in human lung fibroblast cells. Toxicol Appl Pharmacol 2014; 278:259-65. [DOI: 10.1016/j.taap.2014.05.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 05/01/2014] [Accepted: 05/05/2014] [Indexed: 11/28/2022]
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69
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Ortega R, Bresson C, Darolles C, Gautier C, Roudeau S, Perrin L, Janin M, Floriani M, Aloin V, Carmona A, Malard V. Low-solubility particles and a Trojan-horse type mechanism of toxicity: the case of cobalt oxide on human lung cells. Part Fibre Toxicol 2014; 11:14. [PMID: 24669904 PMCID: PMC3994290 DOI: 10.1186/1743-8977-11-14] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 03/18/2014] [Indexed: 11/18/2022] Open
Abstract
Background The mechanisms of toxicity of metal oxide particles towards lung cells are far from being understood. In particular, the relative contribution of intracellular particulate versus solubilized fractions is rarely considered as it is very challenging to assess, especially for low-solubility particles such as cobalt oxide (Co3O4). Methods This study was possible owing to two highly sensitive, independent, analytical techniques, based on single-cell analysis, using ion beam microanalysis, and on bulk analysis of cell lysates, using mass spectrometry. Results Our study shows that cobalt oxide particles, of very low solubility in the culture medium, are readily incorporated by BEAS-2B human lung cells through endocytosis via the clathrin-dependent pathway. They are partially solubilized at low pH within lysosomes, leading to cobalt ions release. Solubilized cobalt was detected within the cytoplasm and the nucleus. As expected from these low-solubility particles, the intracellular solubilized cobalt content is small compared with the intracellular particulate cobalt content, in the parts-per-thousand range or below. However, we were able to demonstrate that this minute fraction of intracellular solubilized cobalt is responsible for the overall toxicity. Conclusions Cobalt oxide particles are readily internalized by pulmonary cells via the endo-lysosomal pathway and can lead, through a Trojan-horse mechanism, to intracellular release of toxic metal ions over long periods of time, involving specific toxicity.
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Affiliation(s)
- Richard Ortega
- Univ, Bordeaux, CENBG, UMR 5797, Gradignan F-33170, France.
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70
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Gernand JM, Casman EA. A meta-analysis of carbon nanotube pulmonary toxicity studies--how physical dimensions and impurities affect the toxicity of carbon nanotubes. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2014; 34:583-597. [PMID: 24024907 DOI: 10.1111/risa.12109] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This article presents a regression-tree-based meta-analysis of rodent pulmonary toxicity studies of uncoated, nonfunctionalized carbon nanotube (CNT) exposure. The resulting analysis provides quantitative estimates of the contribution of CNT attributes (impurities, physical dimensions, and aggregation) to pulmonary toxicity indicators in bronchoalveolar lavage fluid: neutrophil and macrophage count, and lactate dehydrogenase and total protein concentrations. The method employs classification and regression tree (CART) models, techniques that are relatively insensitive to data defects that impair other types of regression analysis: high dimensionality, nonlinearity, correlated variables, and significant quantities of missing values. Three types of analysis are presented: the RT, the random forest (RF), and a random-forest-based dose-response model. The RT shows the best single model supported by all the data and typically contains a small number of variables. The RF shows how much variance reduction is associated with every variable in the data set. The dose-response model is used to isolate the effects of CNT attributes from the CNT dose, showing the shift in the dose-response caused by the attribute across the measured range of CNT doses. It was found that the CNT attributes that contribute the most to pulmonary toxicity were metallic impurities (cobalt significantly increased observed toxicity, while other impurities had mixed effects), CNT length (negatively correlated with most toxicity indicators), CNT diameter (significantly positively associated with toxicity), and aggregate size (negatively correlated with cell damage indicators and positively correlated with immune response indicators). Increasing CNT N2 -BET-specific surface area decreased toxicity indicators.
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Affiliation(s)
- Jeremy M Gernand
- Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA, USA
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71
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Roychoudhury S, Sirotkin AV, Toman R, Kolesarova A. Cobalt-induced hormonal and intracellular alterations in rat ovarian fragments in vitro. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2014; 49:971-977. [PMID: 25310813 DOI: 10.1080/03601234.2014.951586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The objective of this in vitro study was to examine dose-dependent changes in the secretion activity (progesterone, 17β-estradiol and insulin-like growth factor-I) of rat ovarian fragments after experimental cobalt (Co) administration including the apoptotic potential of Co on rat ovarian fragments by evaluating the expression of apoptotic markers Bax and caspase-3. Ovarian fragments were incubated with cobalt sulphate (CoSO4.7H2O) at the doses 90, 170, 330 and 500 μg.mL(-1) for 24 h and compared with control group without Co addition. Release of progesterone (P4) 17β-estradiol and insulin-like growth factor-I (IGF-I) by ovarian fragments was assessed by RIA, expression of Bax and caspase-3 by SDS-PAGE and Western blotting. Observations show that P4 release by ovarian fragments was significantly (P < 0.05) inhibited after cobalt sulphate addition at higher doses 170-500 μg.mL(-1) used in the study in comparison to control. However, cobalt sulphate addition did not cause any significant change in the release of 17β-estradiol by ovarian fragments at all the doses used in the study (90-500 μg.mL(-1)) in comparison to control. On the contrary, IGF-I release by ovarian fragments was significantly (P < 0.05) stimulated after cobalt sulphate addition at the lowest dose 90 μg.mL(-1) in comparison to control, while other doses did not cause any significant change. Also, addition of cobalt sulphate decreased the expression of both the apoptotic peptides Bax and caspase-3 at the higher doses 170, 330 and 500 μg.mL(-1), but not at the lowest dose 90 μg.mL(-1) used in the study. Obtained results suggest Co induced (1) inhibition in secretion of steroid hormone progesterone, (2) dose-dependent increase in the release of growth factor IGF-I, and (3) decrease in the expression of markers of apoptosis (Bax and caspase-3) of rat ovarian fragments.
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72
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Zapata-Morales JR, Galicia-Cruz OG, Franco M, Martinez Y Morales F. Hypoxia-inducible factor-1α (HIF-1α) protein diminishes sodium glucose transport 1 (SGLT1) and SGLT2 protein expression in renal epithelial tubular cells (LLC-PK1) under hypoxia. J Biol Chem 2013; 289:346-57. [PMID: 24196951 DOI: 10.1074/jbc.m113.526814] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In this work, we demonstrated the regulation of glucose transporters by hypoxia inducible factor-1α (HIF-1α) activation in renal epithelial cells. LLC-PK1 monolayers were incubated for 1, 3, 6, or 12 h with 0% or 5% O2 or 300 μm cobalt (CoCl2). We evaluated the effects of hypoxia on the mRNA and protein expression of HIF-1α and of the glucose transporters SGLT1, SGLT2, and GLUT1. The data showed an increase in HIF-1α mRNA and protein expression under the three evaluated conditions (p < 0.05 versus t = 0). An increase in GLUT1 mRNA (12 h) and protein expression (at 3, 6, and 12 h) was observed (p < 0.05 versus t = 0). SGLT1 and SGLT2 mRNA and protein expression decreased under the three evaluated conditions (p < 0.05 versus t = 0). In conclusion, our results suggest a clear decrease in the expression of the glucose transporters SGLT1 and SGLT2 under hypoxic conditions which implies a possible correlation with increased expression of HIF-1α.
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Affiliation(s)
- Juan R Zapata-Morales
- From the Department of Pharmacology, School of Medicine, University of San Luis Potosi, 78210 San Luis Potosi, Mexico and
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73
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Cobalt triggers necrotic cell death and atrophy in skeletal C2C12 myotubes. Toxicol Appl Pharmacol 2013; 271:196-205. [DOI: 10.1016/j.taap.2013.05.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 05/01/2013] [Accepted: 05/04/2013] [Indexed: 12/14/2022]
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74
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Garoui E, Amara IB, Driss D, Elwej A, Chaabouni SE, Boudawara T, Zeghal N. Effects of cobalt on membrane ATPases, oxidant, and antioxidant values in the cerebrum and cerebellum of suckling rats. Biol Trace Elem Res 2013; 154:387-95. [PMID: 23857379 PMCID: PMC3744383 DOI: 10.1007/s12011-013-9746-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 06/25/2013] [Indexed: 01/13/2023]
Abstract
Chronic overexposure to cobalt (Co) may result in neurotoxic effects, but the mechanism of Co-induced neurotoxicity is not yet well established. Our study was conducted to determine whether Co is associated to the induction of central nervous system damage in pregnant rats and their progeny. Twelve pregnant female rats were randomly divided into 2 groups: group I served as controls and group II received Co (350 mg/L, orally). Treatments started from the 14th day of pregnancy until day 14 after delivery. Co concentration in plasma was higher in the treated groups than in the controls. Exposure to Co also increased the levels of MDA, PCO, H2O2, and AOPP, while Na(+)K(+)-ATPase and Mg(2+)-ATPase, AChE, and BuChE activities decreased in the cerebrum and cerebellum of suckling pups. A smear without ladder formation on agarose gel was also shown in the cerebrum and cerebellum, indicating random DNA degradation. A reduction in GPx, SOD, CAT, GSH, NPSH, and vitamin C values was observed. The changes were confirmed by histological results. In conclusion, these data showed that the exposure of pregnant and lactating rats to Co resulted in the development of oxidative stress and the impairment of defense systems in the cerebrum and cerebellum of their suckling pups.
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Affiliation(s)
- Elmouldi Garoui
- Animal Physiology Laboratory, Life Sciences Department, Sfax Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia
| | - Ibtissem Ben Amara
- Animal Physiology Laboratory, Life Sciences Department, Sfax Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia
| | - Dorra Driss
- Enzymes and Bioconversions Laboratory, National Engineering School, University of Sfax, BP 1173, 3038 Sfax, Tunisia
| | - Awatef Elwej
- Animal Physiology Laboratory, Life Sciences Department, Sfax Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia
| | - Semia Ellouze Chaabouni
- Enzymes and Bioconversions Laboratory, National Engineering School, University of Sfax, BP 1173, 3038 Sfax, Tunisia
| | - Tahia Boudawara
- Anatomopathology Laboratory, CHU Habib Bourguiba, University of Sfax, 3029 Sfax, Tunisia
| | - Najiba Zeghal
- Animal Physiology Laboratory, Life Sciences Department, Sfax Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia
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75
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Poly[1-(N,N-bis-carboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide] brushes grafted onto siliceous support for preconcentration and determination of cobalt (II) in human plasma and environmental samples. KOREAN J CHEM ENG 2013. [DOI: 10.1007/s11814-013-0100-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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76
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Ghoneum A, Sharma S, Gimzewski J. Nano-hole induction by nanodiamond and nanoplatinum liquid, DPV576, reverses multidrug resistance in human myeloid leukemia (HL60/AR). Int J Nanomedicine 2013; 8:2567-73. [PMID: 23888112 PMCID: PMC3722034 DOI: 10.2147/ijn.s43417] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Recently nanoparticles have been extensively studied and have proven to be a promising candidate for cancer treatment and diagnosis. In the current study, we examined the chemo-sensitizing activity of a mixture of nanodiamond (ND) and nanoplatinum (NP) solution known as DPV576, against multidrug-resistant (MDR) human myeloid leukemia (HL60/AR) and MDR-sensitive cells (HL60). Cancer cells were cultured with different concentrations of daunorubicin (DNR) (1 × 10 −9−1 × 10 −6 M) in the presence of selected concentrations of DPV576 (2.5%–10% v/v). Cancer cell survival was determined by MTT assay, drug accumulation by flow cytometry and confocal laser scanning microscopy (CLSM), and holes and structural changes by atomic force microscopy (AFM). Co-treatment of HL60/AR cells with DNR plus DPV576 resulted in the reduction of the IC50 to 1/4th. This was associated with increased incidences of holes inside the cells as compared with control untreated cells. On the other hand, HL60 cells did not show changes in their drug accumulation post-treatment with DPV576 and DNR. We conclude that DPV576 is an effective chemo-sensitizer as indicated by the reversal of HL60/AR cells to DNR and may represent a potential novel adjuvant for the treatment of chemo-resistant human myeloid leukemia.
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Affiliation(s)
- Alia Ghoneum
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
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77
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Bresson C, Darolles C, Carmona A, Gautier C, Sage N, Roudeau S, Ortega R, Ansoborlo E, Malard V. Cobalt chloride speciation, mechanisms of cytotoxicity on human pulmonary cells, and synergistic toxicity with zinc. Metallomics 2013; 5:133-43. [PMID: 23505636 DOI: 10.1039/c3mt20196a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Cobalt is used in numerous industrial sectors, leading to occupational diseases, particularly by inhalation. Cobalt-associated mechanisms of toxicity are far from being understood and information that could improve knowledge in this area is required. We investigated the impact of a soluble cobalt compound, CoCl(2)·6H(2)O, on the BEAS-2B lung epithelial cell line, as well as its impact on metal homeostasis. Cobalt speciation in different culture media, in particular soluble and precipitated cobalt species, was investigated via theoretical and analytical approaches. The cytotoxic effects of cobalt on the cells were assessed. Upon exposure of BEAS-2B cells to cobalt, intracellular accumulation of cobalt and zinc was demonstrated using direct in situ microchemical analysis based on ion micro-beam techniques and analysis after cell lysis by inductively coupled plasma mass spectrometry (ICP-MS). Microchemical imaging revealed that cobalt was rather homogeneously distributed in the nucleus and in the cytoplasm whereas zinc was more abundant in the nucleus. The modulation of zinc homeostasis led to the evaluation of the effect of combined cobalt and zinc exposure. In this case, a clear synergistic increase in toxicity was observed as well as a substantial increase in zinc content within cells. Western blots performed under the same coexposure conditions revealed a decrease in ZnT1 expression, suggesting that cobalt could inhibit zinc release through the modulation of ZnT1. Overall, this study highlights the potential hazard to lung function, of combined exposure to cobalt and zinc.
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Affiliation(s)
- Carole Bresson
- Laboratoire de développement Analytique Nucléaire, Isotopique et Elémentaire, Gif-sur-Yvette, France.
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78
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El‐Safty SA, Abdellatef S, Ismael M, Shahat A. Optical nanosphere sensor based on shell-by-shell fabrication for removal of toxic metals from human blood. Adv Healthc Mater 2013; 2:854-62. [PMID: 23307510 DOI: 10.1002/adhm.201200326] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 11/26/2012] [Indexed: 11/10/2022]
Abstract
Because toxic heavy metals tend to bioaccumulate, they represent a substantial human health hazard. Various methods are used to identify and quantify toxic metals in biological tissues and environment fluids, but a simple, rapid, and inexpensive system has yet to be developed. To reduce the necessity for instrument-dependent analysis, we developed a single, pH-dependent, nanosphere (NS) sensor for naked-eye detection and removal of toxic metal ions from drinking water and physiological systems (i.e., blood). The design platform for the optical NS sensor is composed of double mesoporous core-shell silica NSs fabricated by one-pot, template-guided synthesis with anionic surfactant. The dense shell-by-shell NS construction generated a unique hierarchical NS sensor with a hollow cage interior to enable accessibility for continuous monitoring of several different toxic metal ions and efficient multi-ion sensing and removal capabilities with respect to reversibility, longevity, selectivity, and signal stability. Here, we examined the application of the NS sensor for the removal of toxic metals (e.g., lead ions from a physiological system, such as human blood). The findings show that this sensor design has potential for the rapid screening of blood lead levels so that the effects of lead toxicity can be avoided.
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Affiliation(s)
- S. A. El‐Safty
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
- Graduate School for Advanced Science and Engineering, Waseda University, 3‐4‐1, Okubo, Shinjuku‐ku, Tokyo 169‐8555, Japan
| | - S. Abdellatef
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
| | - M. Ismael
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
| | - A. Shahat
- National Institute for Materials Science (NIMS), 1‐2‐1 Sengen, Tsukuba, Ibaraki 305‐0047, Japan
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79
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Sabbioni E, Fortaner S, Farina M, Del Torchio R, Olivato I, Petrarca C, Bernardini G, Mariani-Costantini R, Perconti S, Di Giampaolo L, Gornati R, Di Gioacchino M. Cytotoxicity and morphological transforming potential of cobalt nanoparticles, microparticles and ions in Balb/3T3 mouse fibroblasts: anin vitromodel. Nanotoxicology 2013; 8:455-64. [DOI: 10.3109/17435390.2013.796538] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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80
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Paustenbach DJ, Tvermoes BE, Unice KM, Finley BL, Kerger BD. A review of the health hazards posed by cobalt. Crit Rev Toxicol 2013; 43:316-62. [DOI: 10.3109/10408444.2013.779633] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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81
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Darolles C, Sage N, Armengaud J, Malard V. In vitro assessment of cobalt oxide particle toxicity: identifying and circumventing interference. Toxicol In Vitro 2013; 27:1699-710. [PMID: 23624240 DOI: 10.1016/j.tiv.2013.04.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 02/25/2013] [Accepted: 04/05/2013] [Indexed: 10/26/2022]
Abstract
The continuing development of nanotechnology necessitates the reliable assessment of potential adverse health consequences associated with human exposures. The physicochemical properties of nanomaterials can be responsible for unexpected interactions with components of classical toxicity assays, which may generate erroneous interpretations. In this paper, we describe how particle interference can be observed in in vitro toxicity tests (CellTiter Blue, CyQUANT, WST-1 and CellTiter-Glo assay) and in cell biology tests using flow cytometry (cell cycle analysis). We used cobalt oxide (Co3O4) particles as an example, but these assays can be performed, in principle, regardless of the nanoparticle considered. We have shown that cobalt particles interfere with most of these tests. We adapted the protocol of the CellTiter-Glo assay to circumvent this interference and demonstrated that, using this protocol, the toxicity level is consistent with results obtained using the clonogenic assay, which is considered to be the reference test. Before assessing particle toxicity using in vitro toxicity tests, interference testing should be performed to avoid false interpretations. Furthermore, in some cases of interference, protocol adaptation can be considered to allow the reliable use of these quick and convenient in vitro tests.
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Affiliation(s)
- Carine Darolles
- CEA, DSV, IBEB, Lab Biochim System Perturb, Bagnols-sur-Cèze F-30207, France
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82
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Zaksas N, Gluhcheva Y, Sedykh S, Madzharova M, Atanassova N, Nevinsky G. Effect of CoCl(2) treatment on major and trace elements metabolism and protein concentration in mice. J Trace Elem Med Biol 2013; 27:27-30. [PMID: 22944586 DOI: 10.1016/j.jtemb.2012.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 06/01/2012] [Accepted: 07/02/2012] [Indexed: 10/27/2022]
Abstract
Cobalt (Co) is a transition metal and an essential trace element, required for vitamin B(12) biosynthesis, enzyme activation and other biological processes, but toxic in high concentrations. There is lack of data for the effect of long-term Co(II) treatment on the concentrations of other trace elements. We estimate the influence of cobalt chloride (CoCl(2)) on the relative content of different metals in mouse plasma using two-jet arc plasmatron atomic emission and on the total protein content. On average, the content of different elements in the plasma of 2-month-old balb/c mice (control group) decreased in the order: Ca>Mg>Si>Fe>Zn>Cu≥Al≥B. The treatment of mice for 60 days with CoCl(2) (daily dose 125 mg/kg) did not appreciably change the relative content of Ca, Cu, and Zn, while a 2.4-fold statistically significant decrease in the content of B and significant increase in the content of Mg (1.4-fold), Al and Fe (2.0-fold) and Si (3.2-fold) was found. A detectable amount of Mo was observed only for two control mice, while the plasma of 9 out of 16 mice of the treated group contained this metal. The administration of Co made its concentration detectable in the plasma of all mice of the treated group, but the relative content varied significantly. The treatment led to a 2.2-fold decrease in the concentration of the total plasma protein. Chronic exposure to CoCl(2) affects homeostasis as well as the concentrations and metabolism of other essential elements, probably due to competition of Co ions for similar binding sites within cells, altered signal transduction and protein biosynthesis. Long-term treatment also leads to significant weight changes and reduces the total protein concentration. The data may be useful for an understanding of Co toxicity, its effect on the concentration of other metal ions and different physiological processes.
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Affiliation(s)
- Nataliya Zaksas
- Institute of Inorganic Chemistry, Siberian Division of Russian Academy of Sciences, 10 Lavrentieva Ave., Novosibirsk 630090, Russia
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83
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Legostaeva GA, Zaksas NP, Gluhcheva YG, Sedykh SE, Madzharova ME, Atanassova NN, Buneva VN, Nevinsky GA. Effect of CoCl2on the content of different metals and a relative activity of DNA-hydrolyzing abzymes in the blood plasma of mice. J Mol Recognit 2012; 26:10-22. [DOI: 10.1002/jmr.2217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 07/09/2012] [Accepted: 07/12/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Galina A. Legostaeva
- Institute of Chemical Biology and Fundamental Medicine; Siberian Division of Russian Academy of Sciences; 8 Lavrentiev Ave.; Novosibirsk; 630090; Russia
| | - Nataliya P. Zaksas
- Institute of Inorganic Chemistry; Siberian Division of Russian Academy of Sciences; 10 Lavrentiev Ave.; Novosibirsk; 630090; Russia
| | - Yordanka G. Gluhcheva
- Institute of Experimental Morphology; Pathology and Anthropology with Museum-BAS; Acad. G. Bonchev, Str., Bl. 25; 1113; Sofia; Bulgaria
| | - Sergey E. Sedykh
- Institute of Chemical Biology and Fundamental Medicine; Siberian Division of Russian Academy of Sciences; 8 Lavrentiev Ave.; Novosibirsk; 630090; Russia
| | - Maria E. Madzharova
- Institute of Experimental Morphology; Pathology and Anthropology with Museum-BAS; Acad. G. Bonchev, Str., Bl. 25; 1113; Sofia; Bulgaria
| | - Nina N. Atanassova
- Institute of Experimental Morphology; Pathology and Anthropology with Museum-BAS; Acad. G. Bonchev, Str., Bl. 25; 1113; Sofia; Bulgaria
| | - Valentina N. Buneva
- Institute of Chemical Biology and Fundamental Medicine; Siberian Division of Russian Academy of Sciences; 8 Lavrentiev Ave.; Novosibirsk; 630090; Russia
| | - Georgy A. Nevinsky
- Institute of Chemical Biology and Fundamental Medicine; Siberian Division of Russian Academy of Sciences; 8 Lavrentiev Ave.; Novosibirsk; 630090; Russia
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84
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Nair S, Joshi-Saha A, Singh S, Ramachandran V, Singh S, Thorat V, Kaushik CP, Eapen S, D'Souza SF. Evaluation of transgenic tobacco plants expressing a bacterial Co-Ni transporter for acquisition of cobalt. J Biotechnol 2012; 161:422-8. [PMID: 22898176 DOI: 10.1016/j.jbiotec.2012.07.191] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 06/23/2012] [Accepted: 07/15/2012] [Indexed: 11/21/2022]
Abstract
Phytoremediation is a viable strategy for management of toxic wastes in a large area/volume with low concentrations of toxic elemental pollutants. With increased industrial use of cobalt and its alloys, it has become a major metal contaminant in soils and water bodies surrounding these industries and mining sites with adverse effects on the biota. A bacterial Co-Ni permease was cloned from Rhodopseudomonas palustris and introduced into Nicotiana tabacum to explore its potential for phytoremediation and was found to be specific for cobalt and nickel. The transgenic plants accumulated more cobalt and nickel as compared to control, whereas no significant difference in accumulation of other divalent ions was observed. The transgenic plants were evaluated for cobalt content and showed increased acquisition of cobalt (up to 5 times) as compared to control. The plants were also assessed for accumulation of nickel and found to accumulate up to 2 times more nickel than control. At the same initial concentration of cobalt and nickel, transgenic plant preferentially accumulated cobalt as compared to nickel. The present study is perhaps the first attempt to develop transgenic plants expressing heterologous Co transporter with an improved capacity to uptake cobalt.
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Affiliation(s)
- Smitha Nair
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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85
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MAGAYE RUTH, ZHAO JINSHUN, BOWMAN LINDA, DING MIN. Genotoxicity and carcinogenicity of cobalt-, nickel- and copper-based nanoparticles. Exp Ther Med 2012; 4:551-561. [PMID: 23170105 PMCID: PMC3501377 DOI: 10.3892/etm.2012.656] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Accepted: 07/31/2012] [Indexed: 01/06/2023] Open
Abstract
The nanotechnology industry has matured and expanded at a rapid pace in the last decade, leading to the research and development of nanomaterials with enormous potential. The largest source of these nanomaterials is the transitional metals. It has been revealed that numerous properties of these nano-sized elements are not present in their bulk states. The nano size of these particles means they are easily transported into biological systems, thus, raising the question of their effects on the susceptible systems. Although advances have been made and insights have been gained on the effect of transitional metals on susceptible biological systems, there still is much ground to be covered, particularly with respect to our knowledge on the genotoxic and carcinogenic effects. Therefore, this review intends to summarize the current knowledge on the genotoxic and carcinogenic potential of cobalt-, nickel- and copper-based nanoparticles indicated in in vitro and in vivo mammalian studies. In the present review, we briefly state the sources, use and exposure routes of these nanoparticles and summarize the current literature findings on their in vivo and in vitro genotoxic and carcinogenic effects. Due to the increasing evidence of their role in carcinogenicity, we have also included studies that have reported epigenetic factors, such as abnormal apoptosis, enhanced oxidative stress and pro-inflammatory effects involving these nanoparticles.
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Affiliation(s)
- RUTH MAGAYE
- Department of Preventive Medicine of the Medical School, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Ningbo University, Ningbo, Zhejiang 315211,
P.R. China
| | - JINSHUN ZHAO
- Department of Preventive Medicine of the Medical School, Zhejiang Provincial Key Laboratory of Pathological and Physiological Technology, Ningbo University, Ningbo, Zhejiang 315211,
P.R. China
| | - LINDA BOWMAN
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505,
USA
| | - MIN DING
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505,
USA
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86
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Hard-metal (WC–Co) particles trigger a signaling cascade involving p38 MAPK, HIF-1α, HMOX1, and p53 activation in human PBMC. Arch Toxicol 2012; 87:259-68. [DOI: 10.1007/s00204-012-0943-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Accepted: 09/13/2012] [Indexed: 01/20/2023]
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87
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Qiu Y, Yu S, Cheng L, Lu F. Sorption of radiocobalt on acid-activated sepiolite: effects of pH, ionic strength, foreign ions, humic acid and temperature. J Radioanal Nucl Chem 2012. [DOI: 10.1007/s10967-012-2195-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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88
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Greimel K, Perz V, Acero EH, Gübitz G. Banning heavy metals from paints: Enzymatic hardening of alkyd resins. N Biotechnol 2012. [DOI: 10.1016/j.nbt.2012.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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89
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Lee JC, Son YO, Pratheeshkumar P, Shi X. Oxidative stress and metal carcinogenesis. Free Radic Biol Med 2012; 53:742-57. [PMID: 22705365 DOI: 10.1016/j.freeradbiomed.2012.06.002] [Citation(s) in RCA: 193] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Revised: 05/31/2012] [Accepted: 06/02/2012] [Indexed: 01/18/2023]
Abstract
Occupational and environmental exposures to metals are closely associated with an increased risk of various cancers. Although carcinogenesis caused by metals has been intensively investigated, the exact mechanisms of action are still unclear. Accumulating evidence indicates that reactive oxygen species (ROS) generated by metals play important roles in the etiology of degenerative and chronic diseases. This review covers recent advances in (1) metal-induced generation of ROS and the related mechanisms; (2) the relationship between metal-mediated ROS generation and carcinogenesis; and (3) the signaling proteins involved in metal-induced carcinogenesis, especially intracellular reduction-oxidation-sensitive molecules.
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Affiliation(s)
- Jeong-Chae Lee
- Graduate Center for Toxicology, College of Medicine, University of Kentucky, Lexington, KY 40536, USA
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90
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Kühnel D, Scheffler K, Wellner P, Meißner T, Potthoff A, Busch W, Springer A, Schirmer K. Comparative evaluation of particle properties, formation of reactive oxygen species and genotoxic potential of tungsten carbide based nanoparticles in vitro. JOURNAL OF HAZARDOUS MATERIALS 2012; 227-228:418-26. [PMID: 22698683 DOI: 10.1016/j.jhazmat.2012.04.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 04/27/2012] [Accepted: 04/29/2012] [Indexed: 05/25/2023]
Abstract
Tungsten carbide (WC) and cobalt (Co) are constituents of hard metals and are used for the production of extremely hard tools. Previous studies have identified greater cytotoxic potential of WC-based nanoparticles if particles contained Co. The aim of this study was to investigate whether the formation of reactive oxygen species (ROS) and micronuclei would help explain the impact on cultured mammalian cells by three different tungsten-based nanoparticles (WC(S), WC(L), WC(L)-Co (S: small; L: large)). The selection of particles allowed us to study the influence of particle properties, e.g. surface area, and the presence of Co on the toxicological results. WC(S) and WC(L)/WC(L)-Co differed in their crystalline structure and surface area, whereas WC(S)/WC(L) and WC(L)-Co differed in their cobalt content. WC(L) and WC(L)-Co showed neither a genotoxic potential nor ROS induction. Contrary to that, WC(S) nanoparticles induced the formation of both ROS and micronuclei. CoCl(2) was tested in relevant concentrations and induced no ROS formation, but increased the rate of micronuclei at concentrations exceeding those present in WC(L)-Co. In conclusion, ROS and micronuclei formation could not be associated with the presence of Co in the WC-based particles. The contrasting responses elicited by WC(S) vs. WC(L) appear to be due to large differences in crystalline structure.
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Affiliation(s)
- Dana Kühnel
- Department of Bioanalytical Ecotoxicology, Helmholtz-Centre for Environmental Research Leipzig-UFZ, Leipzig, Germany.
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91
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Noh YD, Komarneni S. Selective Cobalt (II) Exchange Properties of Na-2-Mica and Na-ETS-4. SOLVENT EXTRACTION AND ION EXCHANGE 2012. [DOI: 10.1080/07366299.2012.670602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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92
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Gürbay A. Protective effect of zinc chloride against cobalt chloride-induced cytotoxicity on vero cells: preliminary results. Biol Trace Elem Res 2012; 148:110-6. [PMID: 22281816 DOI: 10.1007/s12011-012-9331-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 01/11/2012] [Indexed: 10/14/2022]
Abstract
The aim of this study was to investigate the possible time- and dose-dependent cytotoxic effects of cobalt chloride on Vero cells. The cultured cells were incubated with different concentrations of cobalt chloride ranging from 0.5 to 1,000 μM, and cytotoxicity was determined by 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) and resazurin assays. Possible protective effects of vitamin E, coenzyme Q(10), and zinc chloride were also tested in this system. A gradual decrease in cell proliferation was observed at concentrations ~≥ 200 μM in incubation periods of 24, 48, 72, and 96 h with MTT assay. Exposure of cells to 500 and 1,000 μM cobalt chloride caused significant decrease in cell survival. A biphasic survival profile of cells was observed at 1-25 μM concentration range following 96 h of incubation. With resazurin assay, cytotoxicity profile of CoCl(2) was found comparable to the results of MTT assay, particularly at high concentrations and long incubation periods. Dose-dependent cytotoxicity was noted following exposure of cells to ≥ 250 μM of CoCl(2) for 24 h and ≥ 100 μM concentrations of CoCl(2) for 48-96 h. Pretreatment of cells with ZnCl(2) for 4 or 24 h provided significant protection against cobalt chloride-induced cytotoxicity when measured with MTT assay. However, vitamin E or coenzyme Q(10) was not protective. CoCl(2) had dose- and time-dependent cytotoxic effects in Vero cells. Preventive effect of ZnCl(2) against CoCl(2)-induced cytotoxicity should be considered in detail to define exact mechanism of toxicity in Vero cells.
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Affiliation(s)
- Aylin Gürbay
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Hacettepe University, 06100, Ankara, Turkey.
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93
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Vales G, Demir E, Kaya B, Creus A, Marcos R. Genotoxicity of cobalt nanoparticles and ions inDrosophila. Nanotoxicology 2012; 7:462-8. [DOI: 10.3109/17435390.2012.689882] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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94
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Wan R, Mo Y, Feng L, Chien S, Tollerud DJ, Zhang Q. DNA damage caused by metal nanoparticles: involvement of oxidative stress and activation of ATM. Chem Res Toxicol 2012; 25:1402-11. [PMID: 22559321 DOI: 10.1021/tx200513t] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanotechnology is a fast growing emerging field, the benefits of which are widely publicized. Our current knowledge of the health effects of metal nanoparticles such as nanosized cobalt (Nano-Co) and titanium dioxide (Nano-TiO(2)) is limited but suggests that metal nanoparticles may exert more adverse pulmonary effects as compared with standard-sized particles. To investigate metal nanoparticle-induced genotoxic effects and the potential underlying mechanisms, human lung epithelial A549 cells were exposed to Nano-Co and Nano-TiO(2). Our results showed that exposure of A549 cells to Nano-Co caused reactive oxygen species (ROS) generation that was abolished by pretreatment of cells with ROS inhibitors or scavengers, such as catalase and N-acetyl-L(+)-cysteine (NAC). However, exposure of A549 cells to Nano-TiO(2) did not cause ROS generation. Nano-Co caused DNA damage in A549 cells, which was reflected by an increase in length, width, and DNA content of the comet tail by the Comet assay. Exposure of A549 cells to Nano-Co also caused a dose- and a time-response increased expression of phosphorylated histone H2AX (γ-H2AX), Rad51, and phosphorylated p53. These effects were significantly attenuated when A549 cells were pretreated with catalase or NAC. Nano-TiO(2) did not show these effects. These results suggest that oxidative stress may be involved in Nano-Co-induced DNA damage. To further investigate the pathways involved in the Nano-Co-induced DNA damage, we measured the phosphorylation of ataxia telangiectasia mutant (ATM). Our results showed that phosphorylation of ATM was increased when A549 cells were exposed to Nano-Co, and this effect was attenuated when cells were pretreated with catalase or NAC. Pretreatment of A549 cells with an ATM specific inhibitor, KU55933, significantly abolished Nano-Co-induced DNA damage. Furthermore, pretreatment of A549 cells with ROS scavengers, such as catalase and NAC, significantly abolished Nano-Co-induced increased expression of phosphorylated ATM. Taken together, oxidative stress and ATM activation are involved in Nano-Co-induced DNA damage. These findings have important implications for understanding the potential health effects of metal nanoparticle exposure.
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Affiliation(s)
- Rong Wan
- Department of Environmental and Occupational Health Sciences, School of Public Health and Information Sciences, University of Louisville, Louisville, KY 40202, USA
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95
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Process engineering development for the manufacturing of manganese octoate on a pilot plant scale. Chem Eng Res Des 2012. [DOI: 10.1016/j.cherd.2011.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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96
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Jiang H, Liu F, Yang H, Li Y. Effects of cobalt nanoparticles on human T cells in vitro. Biol Trace Elem Res 2012; 146:23-9. [PMID: 21968949 DOI: 10.1007/s12011-011-9221-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 09/22/2011] [Indexed: 11/27/2022]
Abstract
Limited information is available on the potential risk of degradation products of metal-on-metal bearings in joint arthroplasty. The aim of this study was to investigate the cytotoxicity and genotoxicity of orthopedic-related cobalt nanoparticles on human T cells in vitro. T cells were collected using magnetic CD3 microbeads and exposed to different concentrations of cobalt nanoparticles and cobalt chloride. Cytotoxicity was evaluated by methyl thiazolyl tetrazolium and lactate dehydrogenase release assay. Cobalt nanoparticles dissolution in culture medium was determined by inductively coupled plasma-mass spectrometry. To study the probable mechanism of cobalt nanoparticles effects on T cells, superoxide dismutase, catalase, and glutathione peroxidase level was measured. Cobalt nanoparticles and cobalt ions could inhibit cell viability and enhance lactate dehydrogenase release in a concentration- and time-dependent manner (P < 0.05). The levels of cobalt ion released from cobalt nanoparticles in the culture medium were less than 40% and increased with cobalt nanoparticles concentration. Cobalt nanoparticles could induce primary DNA damage in a concentration-dependent manner, and the DNA damage caused by cobalt nanoparticles was heavier than that caused by cobalt ions. Cobalt nanoparticles exposure could significantly decrease superoxide dismutase, catalase, and glutathione peroxidase activities at subtoxic concentrations (6 μM, <CC(50)). These findings suggested that cobalt nanoparticles could generate potential risks to the T cells of patients suffer from metal-on-metal total hip arthroplasty, and the inhibition of antioxidant capacity may play important role in cobalt nanoparticles effects on T cells.
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Affiliation(s)
- Haitao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Shizi Street, Suzhou, 215006, Jiangsu Province, People's Republic of China
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97
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Kubrak OI, Rovenko BM, Husak VV, Vasylkiv OY, Storey KB, Storey JM, Lushchak VI. Goldfish exposure to cobalt enhances hemoglobin level and triggers tissue-specific elevation of antioxidant defenses in gills, heart and spleen. Comp Biochem Physiol C Toxicol Pharmacol 2012; 155:325-32. [PMID: 21996381 DOI: 10.1016/j.cbpc.2011.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 09/27/2011] [Accepted: 09/29/2011] [Indexed: 11/24/2022]
Abstract
Cobalt ions can enhance the generation of reactive oxygen species (ROS), which may be the reason for cobalt toxicity. This study aimed to determine whether Co(2+) toxicity in goldfish is related to induced oxidative stress in gills, heart and spleen, and to assess responses of antioxidant systems. Exposure of goldfish to 50, 100 and 150 mg L(-1) of Co(2+) for 96 h elevated total hemoglobin in blood by 23, 44 and 78%, respectively. In gills, cobalt exposure enhanced lipid peroxide levels and activities of primary antioxidant enzymes; superoxide dismutase (SOD) rose by 125% and glutathione peroxidase (GPx) increased by 53-296%. Glutathione-S-transferase (GST) activity also increased by 117-157% and glucose-6-phosphate dehydrogenase (G6PDH) enhanced by 46-96%. Heart showed limited effects of fish exposure to 50 or 100 mg L(-1) of Co(2+), but the exposure to 150 mg L(-1) of Co(2+) elevated concentrations of lipid peroxides by 123% and activities of GPx by 98% and SOD by 208%. The most substantial effects of goldfish exposure to Co(2+) were observed in spleen: a decrease in total protein concentration by 44-60% and high molecular mass thiols by 59-82%, reduced activities of catalase by 24-58% and GR by 25-68%, whereas the level of low molecular mass thiols increased by 153-279% and activities of GPx, GST, G6PDH were enhanced by 114-120%, 192-769%, and 256-581%, respectively. The data show that fish exposure to 50-150 mg L(-1) of Co(2+) elevates blood hemoglobin level, mimicking effects of hypoxia, and causes the activation of defense systems against ROS.
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Affiliation(s)
- Olga I Kubrak
- Department of Biochemistry and Biotechnology, Precarpathian National University named after Vassyl Stefanyk, 57 Shevchenko Str., Ivano-Frankivsk, 76025, Ukraine
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98
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99
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Roedel EQ, Cafasso DE, Lee KW, Pierce LM. Pulmonary toxicity after exposure to military-relevant heavy metal tungsten alloy particles. Toxicol Appl Pharmacol 2012; 259:74-86. [DOI: 10.1016/j.taap.2011.12.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Revised: 12/06/2011] [Accepted: 12/08/2011] [Indexed: 01/06/2023]
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100
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Adsorption of La(III) onto GMZ bentonite: effect of contact time, bentonite content, pH value and ionic strength. J Radioanal Nucl Chem 2012. [DOI: 10.1007/s10967-012-1612-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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