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Neckel A, Korcelski C, Kujawa HA, Schaefer da Silva I, Prezoto F, Walker Amorin AL, Maculan LS, Gonçalves AC, Bodah ET, Bodah BW, Dotto GL, Silva LFO. Hazardous elements in the soil of urban cemeteries; constructive solutions aimed at sustainability. CHEMOSPHERE 2021; 262:128248. [PMID: 32962839 DOI: 10.1016/j.chemosphere.2020.128248] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/28/2020] [Accepted: 09/01/2020] [Indexed: 05/21/2023]
Abstract
Urban cemeteries on a global scale raise concerns due to their potential to concentrate differing levels of hazardous pollutants in their native soils due to the unnatural concentration of burials in a limited space. It is paramount for sustainability that designers of future cemeteries take this into account in order to minimize the deposition and movement of these contaminants within the soil profile. The objective of this manuscript is to identify the levels of certain hazardous element contamination, specifically heavy metals, in the soil of horizontal urban cemeteries that do not utilize herbicides for weed control. In this, solutions were sought for the construction of future urban cemeteries capable of mitigating further contamination of the environment by the increase in interments. The soils of three urban cemeteries (A, B and C) in the Brazilian city of Carazinho, in Rio Grande do Sul State, were sampled with 5 monitoring points in the internal area and 5 points in the external area of the cemeteries. At each point, 3 replications were performed at two depths (0-20 and 20-40 cm), totaling 180 samples in all, to determine the concentration of the following metals: copper (Cu), zinc (Zn), iron (Fe), manganese (Mn), lead (Pb), and chromium (Cr) (g kg-1). In addition, online interviews with 15 architects who design cemeteries were conducted. Architectural design solutions to mitigate environmental contamination were modeled utilizing the Building Information Modeling system (BIM). The results showed an excess of Cu in the soil of cemeteries A, B and C, surpassing the standards allowed by Brazilian federal regulations. A total of 80% of the interviewed architects expressed their preference for the vertical cemetery, with gas and effluent treatment systems to mitigate environmental impacts.
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Affiliation(s)
- Alcindo Neckel
- Faculdade Meridional - IMED, Rua General Prestes Guimarães, 304 Vila Rodrigues, Passo Fundo, RS, 99070-220, Brazil.
| | - Cleiton Korcelski
- Faculdade Meridional - IMED, Rua General Prestes Guimarães, 304 Vila Rodrigues, Passo Fundo, RS, 99070-220, Brazil
| | - Henrique Aniceto Kujawa
- Faculdade Meridional - IMED, Rua General Prestes Guimarães, 304 Vila Rodrigues, Passo Fundo, RS, 99070-220, Brazil
| | - Izabella Schaefer da Silva
- Departent of Biological Sciences, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, São Pedro, Juiz de Fora, MG, 36036-900, Brazil
| | - Fábio Prezoto
- Departent of Biological Sciences, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, São Pedro, Juiz de Fora, MG, 36036-900, Brazil
| | - Anderson Luis Walker Amorin
- Faculdade Meridional - IMED, Rua General Prestes Guimarães, 304 Vila Rodrigues, Passo Fundo, RS, 99070-220, Brazil
| | - Laércio Stolfo Maculan
- Faculdade Meridional - IMED, Rua General Prestes Guimarães, 304 Vila Rodrigues, Passo Fundo, RS, 99070-220, Brazil
| | - Affonso Celso Gonçalves
- State University of Western Paraná - UNIOESTE, Center of Agrarian Sciences, Rua Pernambuco 1777 Centro, Marechal Cândido Rondon, PR, 85960-000, Brazil
| | - Eliane Thaines Bodah
- State University of New York, Onondaga Community College, 4585 West Seneca Turnpike, Syracuse, NY, 13215, USA; Thaines and Bodah Center for Education and Development, 840 South Meadowlark Lane, Othello, WA, 99344, USA.
| | - Brian William Bodah
- Thaines and Bodah Center for Education and Development, 840 South Meadowlark Lane, Othello, WA, 99344, USA
| | - Guilherme L Dotto
- Chemical Engineering Department, Federal University of Santa Maria e UFSM, 1000 Roraima Avenue 97105e900, Santa Maria, RS, Brazil
| | - Luis F O Silva
- Department of Civil and Environmental, Universidad de La Costa, CUC, Calle 58 # 55e66, Barranquilla, Atlantico, Colombia.
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Zhang C, Cai K, Feng Q, Xu Y, Zhang Z. Chromium(VI) promotes cell migration through targeting epithelial-mesenchymal transition in prostate cancer. Toxicol Lett 2018; 300:10-17. [PMID: 30315950 DOI: 10.1016/j.toxlet.2018.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/28/2018] [Accepted: 10/08/2018] [Indexed: 01/27/2023]
Abstract
Chromium (Cr) is widely used in industry, making its toxicity a matter of concern. Although hexavalent Cr [Cr(VI)] can promote cancer cell proliferation in several cancers, there is little evidence implicating Cr(VI) in cancer cell migration, especially in prostate cancer. We show that the Cr concentration is higher in the serum of prostate cancer patients, and is closely associated with unfavorable outcomes for the patients. Additionally, low dose trivalent Cr [Cr(III)] exposure has no obvious carcinogenic effects in prostate cancer. However, Cr(VI) can promote proliferation and invasion of prostate cancer cell line PC3 cells in vitro and in vivo. In seeking the molecular mechanism of Cr(VI) exposure on cancer progression, we found that Cr(VI) could down-regulate the epithelial protein marker, E-cadherin, and up-regulate mesenchymal protein markers, such as N-cadherin and Snail. Together, these data indicate that Cr(VI) is a newly verified carcinogen in prostate cancer, and can promote cell migration by affecting the Epithelial-Mesenchymal Transition (EMT) pathway. Thus, inhibition of Cr(VI)-EMT signaling is a prospective approach toward limiting prostate tumor progression.
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Affiliation(s)
- Changwen Zhang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, China
| | - Keke Cai
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, China
| | - Qijin Feng
- Department of Orthopaedics, The Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, China
| | - Yong Xu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, China.
| | - Zhihong Zhang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, China.
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Speer RM, Wise CF, Young JL, Aboueissa AM, Martin Bras M, Barandiaran M, Bermúdez E, Márquez-D'Acunti L, Wise JP. The cytotoxicity and genotoxicity of particulate and soluble hexavalent chromium in leatherback sea turtle lung cells. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 198:149-157. [PMID: 29547730 PMCID: PMC5915330 DOI: 10.1016/j.aquatox.2018.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/02/2018] [Accepted: 03/03/2018] [Indexed: 05/19/2023]
Abstract
Hexavalent chromium [Cr(VI)] is a marine pollution of concern as recent studies show it has a global distribution, with some regions showing high Cr concentrations in marine animal tissue, and it is extensively used. Leatherback sea turtles (Dermochelys coriacea) are an endangered marine species that may experience prolonged exposures to environmental contaminants including Cr(VI). Human activities have led to global Cr(VI) contamination of the marine environment. While Cr(VI) has been identified as a known human carcinogen, the health effects in marine species are poorly understood. In this study, we assessed the cytotoxic and genotoxic effects of particulate and soluble Cr(VI) in leatherback sea turtle lung cells. Both particulate and soluble Cr(VI) induced a concentration-dependent increase in cytotoxicity. Next, using a chromosome aberration assay, we assessed the genotoxic effects of Cr(VI) in leatherback sea turtle lung cells. Particulate and soluble Cr(VI) induced a concentration-dependent increase in clastogenicity in leatherback sea turtle lung cells. These data indicate that Cr(VI) may be a health concern for leatherback sea turtles and other long-lived marine species. Additionally, these data provide foundational support to use leatherback sea turtles as a valuable model species for monitoring the health effects of Cr(VI) in the environment and possibly as an indicator species to assess environmental human exposures and effects.
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Affiliation(s)
- Rachel M Speer
- Wise Laboratory of Environmental and Genetic Toxicology, Department of Pharmacology and Toxicology, University of Louisville, CTRB rm 522, 505 S. Hancock Street, Louisville, Kentucky, 40292, USA.
| | - Catherine F Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Department of Pharmacology and Toxicology, University of Louisville, CTRB rm 522, 505 S. Hancock Street, Louisville, Kentucky, 40292, USA; Toxicology Program, Department of Biological Sciences, North Carolina State University, Box 7633, Raleigh NC 27695-7633, 850 Main Campus Drive, Raleigh, NC 27606, USA.
| | - Jamie L Young
- Wise Laboratory of Environmental and Genetic Toxicology, Department of Pharmacology and Toxicology, University of Louisville, CTRB rm 522, 505 S. Hancock Street, Louisville, Kentucky, 40292, USA.
| | - AbouEl-Makarim Aboueissa
- Department of Math and Statistics, University of Southern Maine, 96 Falmouth St, Portland, ME 04103, USA.
| | - Mark Martin Bras
- Wise Laboratory of Environmental and Genetic Toxicology, Department of Pharmacology and Toxicology, University of Louisville, CTRB rm 522, 505 S. Hancock Street, Louisville, Kentucky, 40292, USA; Vieques Conservation and Historical Trust, 138 Calle Flamboyan, Vieques, Puerto Rico 00765, USA.
| | - Mike Barandiaran
- U.S. Fish and Wildlife Service, State Rd 997 km 3.2, Vieques, Puerto Rico 00765, USA.
| | - Erick Bermúdez
- U.S. Fish and Wildlife Service, State Rd 997 km 3.2, Vieques, Puerto Rico 00765, USA.
| | - Lirio Márquez-D'Acunti
- Vieques Conservation and Historical Trust, 138 Calle Flamboyan, Vieques, Puerto Rico 00765, USA.
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Department of Pharmacology and Toxicology, University of Louisville, CTRB rm 522, 505 S. Hancock Street, Louisville, Kentucky, 40292, USA.
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Speer RM, The T, Xie H, Liou L, Adam RM, Wise JP. The Cytotoxicity and Genotoxicity of Particulate and Soluble Cobalt in Human Urothelial Cells. Biol Trace Elem Res 2017; 180:48-55. [PMID: 28324276 DOI: 10.1007/s12011-017-0989-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/02/2017] [Indexed: 11/25/2022]
Abstract
Cobalt use is increasing particularly due to its use as one of the primary metals in cobalt-chromium-molybdenum (CoCrMo) metal-on-metal prosthetics. CoCrMo is a high-strength, wear-resistant alloy with reduced risk for prosthetic loosening and device fracture. More than 500,000 people receive hip implants each year in the USA which puts them at potential risk for exposure to metal ions and particles released by the prosthetic implants. Data show cobalt ions released from prosthetics reach the bloodstream and accumulate in the bladder. As patients with failed hip implants show increased urinary and blood cobalt levels, no studies have considered the effects of cobalt on human urothelial cells. Accordingly, we investigated the cytotoxic and genotoxic effects of particulate and soluble cobalt in urothelial cells. Exposure to both particulate and soluble cobalt resulted in a concentration-dependent increase in cytotoxicity, genotoxicity, and intracellular cobalt ions. Based on intracellular cobalt ion levels, we found, when compared to particulate cobalt, soluble cobalt was more cytotoxic, but induced similar levels of genotoxicity. Interestingly, at similar intracellular cobalt ion concentrations, soluble cobalt induced cell cycle arrest indicated by a lack of metaphases not observed after particulate cobalt treatment. These data indicate that cobalt compounds are cytotoxic and genotoxic to human urothelial cells and solubility may play a key role in cobalt-induced toxicity.
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Affiliation(s)
- Rachel M Speer
- Wise Laboratory of Environmental and Genetic Toxicology, University of Louisville, 505 S. Hancock St, CTRB rm 522, Louisville, KY, 40292, USA
| | - Therry The
- Wise Laboratory of Environmental and Genetic Toxicology, University of Louisville, 505 S. Hancock St, CTRB rm 522, Louisville, KY, 40292, USA
- Maine General Health, Alfonso Center of Health, Histology and Cytology Laboratory, 35 Medical Center Parkway, Augusta, ME, 04330, USA
| | - Hong Xie
- Wise Laboratory of Environmental and Genetic Toxicology, University of Louisville, 505 S. Hancock St, CTRB rm 522, Louisville, KY, 40292, USA
- Toxikon Corp, 15 Wiggins Avenue, Bedford, MA, 01730, USA
| | - Louis Liou
- Cambridge Health Alliance Somerville Hospital, 230 Highland Avenue, 4th Floor South Building, Somerville, MA, 02143, USA
| | - Rosalyn M Adam
- Department of Urology, Enders Research Building, Rm 1061.1, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Louisville, 505 S. Hancock St, CTRB rm 522, Louisville, KY, 40292, USA.
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Wise SS, Holmes AL, Liou L, Adam RM, Wise JP. Hexavalent chromium induces chromosome instability in human urothelial cells. Toxicol Appl Pharmacol 2016; 296:54-60. [PMID: 26908176 PMCID: PMC4886549 DOI: 10.1016/j.taap.2016.02.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 02/12/2016] [Accepted: 02/17/2016] [Indexed: 11/22/2022]
Abstract
Numerous metals are well-known human bladder carcinogens. Despite the significant occupational and public health concern of metals and bladder cancer, the carcinogenic mechanisms remain largely unknown. Chromium, in particular, is a metal of concern as incidences of bladder cancer have been found elevated in chromate workers, and there is an increasing concern for patients with metal hip implants. However, the impact of hexavalent chromium (Cr(VI)) on bladder cells has not been studied. We compared chromate toxicity in two bladder cell lines; primary human urothelial cells and hTERT-immortalized human urothelial cells. Cr(VI) induced a concentration- and time-dependent increase in chromosome damage in both cell lines, with the hTERT-immortalized cells exhibiting more chromosome damage than the primary cells. Chronic exposure to Cr(VI) also induced a concentration-dependent increase in aneuploid metaphases in both cell lines which was not observed after a 24h exposure. Aneuploidy induction was higher in the hTERT-immortalized cells. When we correct for uptake, Cr(VI) induces a similar amount of chromosome damage and aneuploidy suggesting that the differences in Cr(VI) sensitivity between the two cells lines were due to differences in uptake. The increase in chromosome instability after chronic chromate treatment suggests this may be a mechanism for chromate-induced bladder cancer, specifically, and may be a mechanism for metal-induced bladder cancer, in general.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA
| | - Amie L Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Radiation Oncology, Dana Farber Cancer Institute, 450 Brookline Ave., Boston, MA 02215, USA
| | - Louis Liou
- Department of Pathology, Boston University School of Medicine, 670 Albany St., Boston, MA 02118, USA
| | - Rosalyn M Adam
- Department of Surgery, Harvard Medical School, Boston, MA 02115, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
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Wise SS, Wise C, Xie H, Guillette LJ, Zhu C, Wise JP, Wise JP. Hexavalent chromium is cytotoxic and genotoxic to American alligator cells. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 171:30-6. [PMID: 26730726 PMCID: PMC4721530 DOI: 10.1016/j.aquatox.2015.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 12/02/2015] [Accepted: 12/10/2015] [Indexed: 05/03/2023]
Abstract
Metals are a common pollutant in the aquatic ecosystem. With global climate change, these levels are anticipated to rise as lower pH levels allow sediment bound metals to be released. The American alligator (Alligator mississippiensis) is an apex predator in the aquatic ecosystem and is considered a keystone species; as such it serves as a suitable monitor for localized pollution. One metal of increasing concern is hexavalent chromium (Cr(VI)). It is present in the aquatic environment and is a known human carcinogen and reproductive toxicant. We measured the cytotoxicity and genotoxicity of Cr(VI) in American alligator cells derived from scute tissue. We found that particulate and soluble Cr(VI) are both cytotoxic and genotoxic to alligator cells in a concentration-dependent manner. These data suggest that alligators may be used as a model for assessing the effects of environmental Cr(VI) contamination as well as for other metals of concern.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA
| | - Catherine Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Program in Environmental and Molecular Toxicology, Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, USA
| | - Hong Xie
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA
| | - Louis J Guillette
- Marine Biomedicine and Environmental Sciences Center, Medical University of South Carolina, USA
| | - Cairong Zhu
- Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Chengdu 610044, China
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Health Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
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Young JL, Wise SS, Xie H, Zhu C, Fukuda T, Wise JP. Comparative cytotoxicity and genotoxicity of soluble and particulate hexavalent chromium in human and hawksbill sea turtle (Eretmochelys imbricata) skin cells. Comp Biochem Physiol C Toxicol Pharmacol 2015; 178:145-155. [PMID: 26440299 PMCID: PMC4669981 DOI: 10.1016/j.cbpc.2015.09.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/17/2015] [Accepted: 09/22/2015] [Indexed: 12/30/2022]
Abstract
Chromium is both a global marine pollutant and a known human health hazard. In this study, we compare the cytotoxicity and genotoxicity of both soluble and particulate chromate in human and hawksbill sea turtle (Eretmochelys imbricata) skin fibroblasts. Our data show that both soluble and particulate Cr(VI) induce concentration-dependent increases in cytotoxicity, genotoxicity, and intracellular Cr ion concentrations in both human and hawksbill sea turtle fibroblasts. Based on administered concentration, particulate and soluble Cr(VI) were more cytotoxic and clastogenic to human cells than sea turtle cells. When the analysis was based on the intracellular concentration of Cr, the data showed that the response of both species was similar. The one exception was the cytotoxicity of intracellular Cr ions from soluble Cr(VI), which caused more cytotoxicity in sea turtle cells (LC50=271μM) than that of human cells (LC50=471μM), but its clastogenicity was similar between the two species. Thus, adjusting for differences in uptake indicated that the explanation for the difference in potency was mostly due to uptake rather than differently affected mechanisms. Overall these data indicate that sea turtles may be a useful sentinel for human health responses to marine pollution.
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Affiliation(s)
- Jamie L Young
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA
| | - Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA
| | - Hong Xie
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA
| | - Cairong Zhu
- Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Chengdu 610044, China
| | - Tomokazu Fukuda
- Graduate School of Agricultural Sciences, Tohoku University, Laboratory of Animal Breeding and Genetics, Second Research Building, Rm112, 1-1 Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
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Xie H, Holmes AL, Wise SS, Young JL, Wise JTF, Wise JP. Human Skin Cells Are More Sensitive than Human Lung Cells to the Cytotoxic and Cell Cycle Arresting Impacts of Particulate and Soluble Hexavalent Chromium. Biol Trace Elem Res 2015; 166:49-56. [PMID: 25805272 PMCID: PMC4470775 DOI: 10.1007/s12011-015-0315-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 03/13/2015] [Indexed: 11/25/2022]
Abstract
Hexavalent chromium Cr(VI) is a known human lung carcinogen, with solubility playing an important role in its carcinogenic potency. Dermal exposure to Cr(VI) is common and has been associated with skin damage; however, no link between chromate exposure and skin cancer has been found. In this study, we compared the cytotoxic and clastogenic effects of Cr(VI) and its impacts on cell cycle progression in human lung and skin fibroblasts. We found human skin cells arrested earlier in their cell cycle and exhibit more cytotoxicity than human lung cells, despite taking up similar amounts of Cr. These outcomes are consistent with a hypothesis that different cellular and molecular responses underlie the differences in carcinogenic outcome in these two tissues.
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Affiliation(s)
| | | | | | | | | | - John Pierce Wise
- Corresponding author: John Pierce Wise, Sr., Ph.D., Director, Maine Center for Toxicology and Environmental Health, Professor of Toxicology and Molecular Epidemiology, Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St. PO Box 9300, Portland, ME 04104-9300, Phone (207) 228-8050, FAX (207) 228-8518, , www.usm.maine.edu/toxicology
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Wise SS, Xie H, Fukuda T, Douglas Thompson W, Wise JP. Hexavalent chromium is cytotoxic and genotoxic to hawksbill sea turtle cells. Toxicol Appl Pharmacol 2014; 279:113-8. [PMID: 24952338 PMCID: PMC4134996 DOI: 10.1016/j.taap.2014.06.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 05/30/2014] [Accepted: 06/08/2014] [Indexed: 11/20/2022]
Abstract
Sea turtles are a charismatic and ancient ocean species and can serve as key indicators for ocean ecosystems, including coral reefs and sea grass beds as well as coastal beaches. Genotoxicity studies in the species are absent, limiting our understanding of the impact of environmental toxicants on sea turtles. Hexavalent chromium (Cr(VI)) is a ubiquitous environmental problem worldwide, and recent studies show it is a global marine pollutant of concern. Thus, we evaluated the cytotoxicity and genotoxicity of soluble and particulate Cr(VI) in hawksbill sea turtle cells. Particulate Cr(VI) was both cytotoxic and genotoxic to sea turtle cells. Concentrations of 0.1, 0.5, 1, and 5μg/cm(2) lead chromate induced 108, 79, 54, and 7% relative survival, respectively. Additionally, concentrations of 0, 0.1, 0.5, 1, and 5μg/cm(2) lead chromate induced damage in 4, 10, 15, 26, and 36% of cells and caused 4, 11, 17, 30, and 56 chromosome aberrations in 100 metaphases, respectively. For soluble Cr, concentrations of 0.25, 0.5, 1, 2.5, and 5μM sodium chromate induced 84, 69, 46, 25, and 3% relative survival, respectively. Sodium chromate induced 3, 9, 9, 14, 21, and 29% of metaphases with damage, and caused 3, 10, 10, 16, 26, and 39 damaged chromosomes in 100 metaphases at concentrations of 0, 0.25, 0.5, 1, 2.5, and 5μM sodium chromate, respectively. These data suggest that Cr(VI) may be a concern for hawksbill sea turtles and sea turtles in general.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
| | - Hong Xie
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
| | - Tomokazu Fukuda
- Graduate School of Agricultural Sciences, Tohoku University, Laboratory of Animal Breeding and Genetics, Second Research Building, Rm 112, 1-1 Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan.
| | - W Douglas Thompson
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Maine Center for Toxicology and Environmental Health, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA; Department of Applied Medical Science, University of Southern Maine, Science Building, 96 Falmouth Street, Portland, ME 04103, USA.
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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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Pabuwal V, Boswell M, Pasquali A, Wise SS, Kumar S, Shen Y, Garcia T, LaCerte C, Wise JP, Wise JP, Warren W, Walter RB. Transcriptomic analysis of cultured whale skin cells exposed to hexavalent chromium [Cr(VI)]. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 134-135:74-81. [PMID: 23584427 PMCID: PMC3739694 DOI: 10.1016/j.aquatox.2013.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 03/10/2013] [Accepted: 03/12/2013] [Indexed: 05/12/2023]
Abstract
Hexavalent chromium Cr(VI) is known to produce cytotoxic effects in humans and is a highly toxic environmental contaminant. Interestingly, it has been shown that free ranging sperm whales (Phyester macrocephalus) may have exceedingly high levels of Cr in their skin. Also, it has been demonstrated that skin cells from whales appear more resistant to both cytotoxicity and clastogenicity upon Cr exposure compared to human cells. However, the molecular genetic mechanisms employed in whale skin cells that might lead to Cr tolerance are unknown. In an effort to understand the underlying mechanisms of Cr(VI) tolerance and to illuminate global gene expression patterns modulated by Cr, we exposed whale skin cells in culture to varying levels of Cr(VI) (i.e., 0.0, 0.5, 1.0 and 5.0 μg/cm²) followed by short read (100 bp) next generation RNA sequencing (RNA-seq). RNA-seq reads from all exposures (≈280 million reads) were pooled to generate a de novo reference transcriptome assembly. The resulting whale reference assembly had 11K contigs and an N50 of 2954 bp. Using the reads from each dose (0.0, 0.5, 1.0 and 5.0 μg/cm²) we performed RNA-seq based gene expression analysis that identified 35 up-regulated genes and 19 down-regulated genes. The experimental results suggest that low dose exposure to Cr (1.0 μg/cm²) serves to induce up-regulation of oxidative stress response genes, DNA repair genes and cell cycle regulator genes. However, at higher doses (5.0 μg/cm²) the DNA repair genes appeared down-regulated while other genes that were induced suggest the initiation of cytotoxicity. The set of genes identified that show regulatory modulation at different Cr doses provide specific candidates for further studies aimed at determination of how whales exhibit resistance to Cr toxicity and what role(s) reactive oxygen species (ROS) may play in this process.
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Affiliation(s)
- Vagmita Pabuwal
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
| | - Mikki Boswell
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
| | - Amanda Pasquali
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
| | - Sandra S. Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St. Portland, ME 04104, USA
| | - Suresh Kumar
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
| | - Yingjia Shen
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
| | - Tzintzuni Garcia
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
| | - Carolyne LaCerte
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St. Portland, ME 04104, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St. Portland, ME 04104, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St. Portland, ME 04104, USA
| | - Wesley Warren
- The Genome Institute, Washington University School of Medicine, 4444 Forest Park Blvd., St Louis, MO 63108, USA
| | - Ronald B. Walter
- Molecular Bioscences Research Group, Department of Chemistry & Biochemistry, 419 Centennial Hall, Texas State University, 601 University Drive, San Marcos TX, 78666, USA
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Li Chen T, LaCerte C, Wise SS, Holmes A, Martino J, Wise JP, Thompson WD, Wise JP. Comparative cytotoxicity and genotoxicity of particulate and soluble hexavalent chromium in human and sperm whale (Physeter macrocephalus) skin cells. Comp Biochem Physiol C Toxicol Pharmacol 2012; 155:143-50. [PMID: 21466859 PMCID: PMC4084666 DOI: 10.1016/j.cbpc.2011.03.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 03/27/2011] [Accepted: 03/28/2011] [Indexed: 11/21/2022]
Abstract
Chromium (Cr) is a global marine pollutant, present in marine mammal tissues. Hexavalent chromium [Cr(VI)] is a known human carcinogen. In this study, we compare the cytotoxic and clastogenic effects of Cr(VI) in human (Homo sapiens) and sperm whale (Physeter macrocephalus) skin fibroblasts. Our data show that increasing concentrations of both particulate and soluble Cr(VI) induce increasing amounts of cytotoxicity and clastogenicity in human and sperm whale skin cells. Furthermore, the data show that sperm whale cells are resistant to these effects exhibiting less cytotoxicity and genotoxicity than the human cells. Differences in Cr uptake accounted for some but not all of the differences in particulate and soluble Cr(VI) genotoxicity, although it did explain the differences in particulate Cr(VI) cytotoxicity. Altogether, the data indicate that Cr(VI) is a genotoxic threat to whales, but also suggest that whales have evolved cellular mechanisms to protect them against the genotoxicity of environmental agents such as Cr(VI).
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Affiliation(s)
- Tânia Li Chen
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
| | - Carolyne LaCerte
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Ocean Alliance, 191 Weston Rd., Lincoln, MA 01773 USA
| | - Sandra S. Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Ocean Alliance, 191 Weston Rd., Lincoln, MA 01773 USA
| | - Amie Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
| | - Julieta Martino
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Ocean Alliance, 191 Weston Rd., Lincoln, MA 01773 USA
| | - W. Douglas Thompson
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME 04104 USA
- Ocean Alliance, 191 Weston Rd., Lincoln, MA 01773 USA
- Correspondence: Sr. Express Mail: 178 Science Building 96 Falmouth St. Portland, Maine 04103 Phone: (207) 228-8050; FAX: (207) 228-8518
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Wise JP, Wise SS, LaCerte C, Wise JP, Aboueissa AM. The genotoxicity of particulate and soluble chromate in sperm whale (physeter macrocephalus) skin fibroblasts. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2011; 52:43-9. [PMID: 20839228 PMCID: PMC4966527 DOI: 10.1002/em.20579] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hexavalent chromium is a marine pollutant of concern, both for the health of ocean ecosystems and for public health. Hexavalent chromium is known to induce genotoxicity in human and other terrestrial mammals. It is also known to be present in both water and air in the marine environment. However, currently there are limited data concerning both chromium levels and its toxicological effects in marine mammals. This study investigated the cytotoxic and genotoxic effects of soluble and particulate hexavalent chromium in sperm whale skin fibroblasts. Both forms of hexavalent chromium induced concentration-dependent increases in cytotoxicity and genotoxicity indicating that these compounds can be a health risk if the whales are exposed to them. These data support a hypothesis that chromium is a concern in the marine environment in general and for the health of sperm whales in particular.
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Affiliation(s)
- John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Portland, Maine
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, Maine
- Department of Applied Medical Science, University of Southern Maine, Portland, Maine
- Ocean Alliance, Lincoln, Massachusetts
| | - Sandra S. Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Portland, Maine
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, Maine
- Department of Applied Medical Science, University of Southern Maine, Portland, Maine
- Ocean Alliance, Lincoln, Massachusetts
| | - Carolyne LaCerte
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Portland, Maine
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, Maine
- Department of Applied Medical Science, University of Southern Maine, Portland, Maine
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Portland, Maine
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, Maine
- Ocean Alliance, Lincoln, Massachusetts
| | - AbouEl-Makarim Aboueissa
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, Maine
- Department of Mathematics and Statistics, University of Southern Maine, Portland, Maine
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Das AP, Singh S. Occupational health assessment of chromite toxicity among Indian miners. Indian J Occup Environ Med 2011; 15:6-13. [PMID: 21808494 PMCID: PMC3143520 DOI: 10.4103/0019-5278.82998] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Elevated concentration of hexavalent chromium pollution and contamination has contributed a major health hazard affecting more than 2 lakh mine workers and inhabitants residing in the Sukinda chromite mine of Odisha, India. Despite people suffering from several forms of ill health, physical and mental deformities, constant exposure to toxic wastes and chronic diseases as a result of chromite mining, there is a tragic gap in the availability of 'scientific' studies and data on the health hazards of mining in India. Occupational Safety and Health Administration, Odisha State Pollution Control Board and the Odisha Voluntary Health Association data were used to compile the possible occupational health hazards, hexavalent chromium exposure and diseases among Sukinda chromite mines workers. Studies were reviewed to determine the routes of exposure and possible mechanism of chromium induced carcinogenicity among the workers. Our studies suggest all forms of hexavalent chromium are regarded as carcinogenic to workers however the most important routes of occupational exposure to Cr (VI) are inhalation and dermal contact. This review article outlines the physical, chemical, biological and psychosocial occupational health hazards of chromite mining and associated metallurgical processes to monitor the mining environment as well as the miners exposed to these toxicants to foster a safe work environment. The authors anticipate that the outcome of this manuscript will have an impact on Indian chromite mining industry that will subsequently bring about improvements in work conditions, develop intervention experiments in occupational health and safety programs.
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Affiliation(s)
- Alok Prasad Das
- Centre of Biotechnology, Siksha ‘O’ Anusandhan University, Bhubaneswar, Odisha, India
| | - Shikha Singh
- Centre of Biotechnology, Siksha ‘O’ Anusandhan University, Bhubaneswar, Odisha, India
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Wise JP, Wise SS, Holmes AL, LaCerte C, Shaffiey F, Aboueissa AM. The cytotoxicity and genotoxicity of hexavalent chromium in Steller sea lion lung fibroblasts compared to human lung fibroblasts. Comp Biochem Physiol C Toxicol Pharmacol 2010; 152:91-8. [PMID: 20211760 PMCID: PMC2862134 DOI: 10.1016/j.cbpc.2010.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2009] [Revised: 02/28/2010] [Accepted: 03/02/2010] [Indexed: 10/19/2022]
Abstract
In this study we directly compared soluble and particulate chromate cytotoxicity and genotoxicity in human (Homo sapiens) and sea lion (Eumetopias jubatus) lung fibroblasts. Our results show that hexavalent chromium induces increased cell death and chromosome damage in both human and sea lion cells with increasing intracellular chromium ion levels. The data further indicate that both sodium chromate and lead chromate are less cytotoxic and genotoxic to sea lion cells than human cells, based on an administered dose. Differences in chromium ion uptake explained some but not all of the reduced amounts of sodium chromate-induced cell death. By contrast, uptake differences could explain the differences in sodium chromate-induced chromosome damage and particulate chromate-induced toxicity. Altogether they indicate that while hexavalent chromium induces similar toxic effects in sea lion and human cells, there are different mechanisms underlying the toxic outcomes.
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Affiliation(s)
- John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, P.O. Box 9300, 96 Falmouth St. Portland, ME 04104-9300, USA.
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16
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Wise SS, Holmes AL, Qin Q, Xie H, Katsifis SP, Thompson WD, Wise JP. Comparative genotoxicity and cytotoxicity of four hexavalent chromium compounds in human bronchial cells. Chem Res Toxicol 2010; 23:365-72. [PMID: 20000473 DOI: 10.1021/tx900363j] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Hexavalent chromium (Cr(VI)) compounds are well-established human lung carcinogens. Solubility plays an important role in their carcinogenicity with the particulate Cr(VI) compounds being the most carcinogenic. Epidemiology and animal studies suggest that zinc chromate is the most potent particulate Cr(VI) compound; however, there are few comparative data to support these observations. The purpose of this study was to compare the genotoxicity of zinc chromate with two other particulate Cr(VI) compounds, barium chromate and lead chromate, and one soluble Cr(VI) compound, sodium chromate. The clastogenic effects of barium chromate and zinc chromate were similar, but lead chromate induced significantly less damage. The levels of DNA damage measured by gamma-H2A.X foci formation were similar for the three particulate chromium compounds. Corrected for chromium uptake differences, we found that zinc chromate and barium chromate were the most cytotoxic, and lead chromate and sodium chromate were less cytotoxic. Zinc chromate was more clastogenic than all other chromium compounds, and lead chromate was the least clastogenic. There was no significant difference between any of the compounds for the induction of DNA double strand breaks. All together, these data suggest that the difference in the carcinogenic potency of zinc chromate over the other chromium compounds is not due solely to a difference in chromium ion uptake and that the zinc cation may in fact have an important role in its carcinogenicity.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, 96 Falmouth Street, Portland, Maine 04104-9300, USA
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17
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Holmes AL, Wise SS, Pelsue SC, Aboueissa AM, Lingle W, Salisbury J, Gallagher J, Wise JP. Chronic exposure to zinc chromate induces centrosome amplification and spindle assembly checkpoint bypass in human lung fibroblasts. Chem Res Toxicol 2010; 23:386-95. [PMID: 20030412 DOI: 10.1021/tx900360w] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Hexavalent chromium (Cr(VI)) compounds are known human lung carcinogens. Solubility plays an important role in its carcinogenicity with the particulate or insoluble form being the most potent. Of the particulate Cr(VI) compounds, zinc chromate appears to be the most potent carcinogen; however, very few studies have investigated its carcinogenic mechanism. In this study, we investigated the ability of chronic exposure to zinc chromate to induce numerical chromosome instability. We found no increase in aneuploidy after a 24 h exposure to zinc chromate, but with more chronic exposures, zinc chromate induced concentration- and time-dependent increases in aneuploidy in the form of hypodiploidy, hyperdiploidy, and tetraploidy. Zinc chromate also induced centrosome amplification in a concentration- and time-dependent manner in both interphase and mitotic cells after chronic exposure, producing cells with centriolar defects. Furthermore, chronic exposure to zinc chromate induced concentration- and time-dependent increases in spindle assembly checkpoint bypass with increases in centromere spreading, premature centromere division, and premature anaphase. Last, we found that chronic exposure to zinc chromate induced a G2 arrest. All together, these data indicate that zinc chromate can induce chromosome instability after prolonged exposures.
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Affiliation(s)
- Amie L Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, Department of Applied Medical Science, University of Southern Maine, 96 Falmouth Street, Portland, Maine 04104-9300, USA
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18
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Nickens KP, Patierno SR, Ceryak S. Chromium genotoxicity: A double-edged sword. Chem Biol Interact 2010; 188:276-88. [PMID: 20430016 DOI: 10.1016/j.cbi.2010.04.018] [Citation(s) in RCA: 215] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Revised: 04/16/2010] [Accepted: 04/19/2010] [Indexed: 01/25/2023]
Abstract
Certain forms of hexavalent chromium [Cr(VI)] are known respiratory carcinogens that induce a broad spectrum of DNA damage. Cr(VI)-carcinogenesis may be initiated or promoted through several mechanistic processes including, the intracellular metabolic reduction of Cr(VI) producing chromium species capable of interacting with DNA to yield genotoxic and mutagenic effects, Cr(VI)-induced inflammatory/immunological responses, and alteration of survival signaling pathways. Cr(VI) enters the cell through non-specific anion channels, and is metabolically reduced by agents including ascorbate, glutathione, and cysteine to Cr(V), Cr(IV), and Cr(III). Cr(III) has a weak membrane permeability capacity and is unable to cross the cell membrane, thereby trapping it within the cell where it can bind to DNA and produce genetic damage leading to genomic instability. Structural genetic lesions produced by the intracellular reduction of Cr(VI) include DNA adducts, DNA-strand breaks, DNA-protein crosslinks, oxidized bases, abasic sites, and DNA inter- and intrastrand crosslinks. The damage induced by Cr(VI) can lead to dysfunctional DNA replication and transcription, aberrant cell cycle checkpoints, dysregulated DNA repair mechanisms, microsatelite instability, inflammatory responses, and the disruption of key regulatory gene networks responsible for the balance of cell survival and cell death, which may all play an important role in Cr(VI) carcinogenesis. Several lines of evidence have indicated that neoplastic progression is a result of consecutive genetic/epigenetic changes that provide cellular survival advantages, and ultimately lead to the conversion of normal human cells to malignant cancer cells. This review is based on studies that provide a glimpse into Cr(VI) carcinogenicity via mechanisms including Cr(VI)-induced death-resistance, the involvement of DNA repair mechanisms in survival after chromium exposure, and the activation of survival signaling cascades in response to Cr(VI) genotoxicity.
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Affiliation(s)
- Kristen P Nickens
- Department of Pharmacology and Physiology, The George Washington University Medical Center, Washington, DC 20037, United States
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Chen TL, Wise SS, Holmes A, Shaffiey F, Wise JP, Thompson WD, Kraus S, Wise JP. Cytotoxicity and genotoxicity of hexavalent chromium in human and North Atlantic right whale (Eubalaena glacialis) lung cells. Comp Biochem Physiol C Toxicol Pharmacol 2009; 150:487-94. [PMID: 19632355 PMCID: PMC4048704 DOI: 10.1016/j.cbpc.2009.07.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2009] [Revised: 07/15/2009] [Accepted: 07/18/2009] [Indexed: 11/26/2022]
Abstract
Humans and cetaceans are exposed to a wide range of contaminants. In this study, we compared the cytotoxic and genotoxic effects of a metal pollutant, hexavalent chromium [Cr(VI)], which has been shown to cause damage in lung cells from both humans and North Atlantic right whales. Our results show that Cr induces increased cell death and chromosome damage in lung cells from both species with increasing intracellular Cr ion levels. Soluble Cr(VI) induced less of a cytotoxic and genotoxic effect based on administered dose in right whale (Eubalaena glacialis) cells than in human (Homo sapiens) cells. Whereas, particulate Cr(VI) induced a similar cytotoxic effect but less of a genotoxic effect based on administered dose in right whale cells than in human cells. Differences in chromium ion uptake explained soluble chromate-induced cell death but not all of the soluble chromate-induced chromosome damage. Uptake differences of lead ions could explain the differences in particulate chromate-induced toxicity. The data show that both forms of Cr(VI) are less genotoxic to right whale than human lung cells, and that soluble Cr(VI) induces a similar cytotoxic effect in both right whale and human cells, while particulate Cr(VI) is more cytotoxic to right whale lung cells.
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Affiliation(s)
- Tânia Li Chen
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
| | - Sandra S. Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
| | - Amie Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
| | - Fariba Shaffiey
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
| | - W. Douglas Thompson
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
| | - Scott Kraus
- New England Aquarium, Edgerton Research Laboratory, Central Wharf, Boston, MA 02110, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- Department of Applied Medical Sciences, University of Southern Maine, 96 Falmouth St., Portland, ME. 04104, USA
- New England Aquarium, Edgerton Research Laboratory, Central Wharf, Boston, MA 02110, USA
- Mystic Aquarium, 55 Coogan Blvd., Mystic, CT 06355, USA
- Ocean Alliance, 191 Weston Rd., Lincoln, MA 01773, USA
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Alley DF, Gordon NR, Langley-Turnbaugh S, Wise JP, Van Epps G, Jalbert A. The effect of PM10 on human lung fibroblasts. Toxicol Ind Health 2009; 25:111-20. [PMID: 19458133 PMCID: PMC4138961 DOI: 10.1177/0748233709103185] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Asthma diagnoses are increasing nationally with the highest rates in the New England states. Epidemiological studies have suggested a relationship between airborne particulate matter (PM) and severity of an asthma attack. However, because particulate matter, PM, is such a complex mixture, it is difficult to isolate the exacerbating factors. In this paper we investigate the effect of NIST (National Institute of Standards and Technology) and Maine PM and the soluble metals released from the PM on the growth of human lung fibroblasts. While the NIST PM itself had the most pronounced effect on cell survival rates, solutions of metals extracted from the PM also affected cell survival. Treatment of cells with 10, 50, 100 and 200 ug/cm(2) resulted in 84 +/- 13%, 69 +/- 15%, 58 +/- 14% and 58 +/- 16% survival, respectively. Appropriate concentrations of eight acid soluble metals from NIST PM were determined and tested on cells giving 91 +/- 11%, 87 +/- 10%, 72 +/- 18% and 66 +/- 20% survival, respectively. Soluble metals from Maine PM were extracted and mixtures of appropriate concentrations of these metals were used to treat cells, resulting in 88 +/- 5%, 81 +/- 5%, 79 +/- 3% and 57 +/- 9% survival rate. To determine which, if any, of the metals individually affected the cells, Mn, Cu, V and As were used to treat the cells. At the metal concentrations tested, only As and V affected cell survival.
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Affiliation(s)
- D. F. Alley
- Chemistry Dept., University of Southern Maine, Gorham, ME 04038
| | - N. R. Gordon
- Chemistry Dept., University of Southern Maine, Gorham, ME 04038
| | | | - J. P. Wise
- Dept. of Applied Medical Sciences and Maine Center for Toxicology and Environmental Health, University of Southern Maine, Gorham, ME 04038
| | - G. Van Epps
- Dept. of Environmental Science, University of Southern Maine, Gorham, ME 04038
| | - A. Jalbert
- Dept. of Environmental Science, University of Southern Maine, Gorham, ME 04038
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Wise JP, Wise SS, Goodale BC, Shaffiey F, Kraus S, Walter RB. Medaka (Oryzias latipes) as a sentinel species for aquatic animals: Medaka cells exhibit a similar genotoxic response as North Atlantic right whale cells. Comp Biochem Physiol C Toxicol Pharmacol 2009; 149:210-4. [PMID: 18930840 PMCID: PMC4524507 DOI: 10.1016/j.cbpc.2008.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Revised: 09/29/2008] [Accepted: 09/29/2008] [Indexed: 11/21/2022]
Abstract
Hexavalent chromium (Cr(VI)) is emerging as a major concern for aquatic environments, particularly marine environments. Medaka (Oryzias latipes) has been used as a model species for human and aquatic health, including the marine environment, though few studies have directly compared toxicological responses in medaka to humans or other aquatic species. We used a medaka fin cell line to compare the genotoxic response of medaka to Cr(VI) to the response observed in North Atlantic right whale cells to see if responses in medaka were similar to those of other aquatic species, particularly aquatic mammals. We used the production of chromosomal aberrations as a measure of genotoxicity. We found that in medaka cells, concentrations of 1, 5 and 10 microM sodium chromate damaged 17, 32 and 43% of metaphases, respectively and these same concentrations 1, 2.5, 5 and 10 microM sodium chromate damaged 14, 24 and 49% of metaphases, respectively, in North Atlantic right whale lung cells and 11, 32 and 41% of metaphases, respectively, in North Atlantic right whale testes cells. These data show that genotoxic responses in medaka are comparable to those seen in North Atlantic right whale cells, consistent with the hypothesis that medaka are a useful model for other aquatic species.
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Affiliation(s)
- John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., Portland, ME 04104, USA.
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Goodale BC, Walter R, Pelsue SR, Thompson WD, Wise SS, Winn RN, Mitani H, Wise JP. The cytotoxicity and genotoxicity of hexavalent chromium in medaka (Oryzias latipes) cells. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2008; 87:60-67. [PMID: 18313153 DOI: 10.1016/j.aquatox.2008.01.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2007] [Revised: 12/19/2007] [Accepted: 01/03/2008] [Indexed: 05/26/2023]
Abstract
Chromium is an increasing health concern for aquatic environments, however, the mechanism of chromium toxicity in aquatic species is yet unknown. We used a medaka (Oryzias latipes) fin cell line to investigate the cytotoxicity and genotoxicity of sodium chromate, a soluble form of hexavalent chromium. We used a clonogenic cytotoxicity assay to measure sodium chromate cytotoxicity, gamma-H2A.X immunofluoresence to measure DNA double-strand breaks, and chromosome damage to measure clastogenicity. We found that sodium chromate is cytotoxic to medaka fin cells, with toxicity increasing in a concentration-dependent manner. Treatments of 0.5, 1, 5, 10, 25, 50 and 100 microM sodium chromate caused 100, 103.5, 87.8, 77.5, 40.9, 15 and 2.7% survival, respectively, relative to the control. We visualized DNA double-strand breaks in medaka cells through the formation of gamma-H2A.X foci. Breaks could be detected at concentrations as low as 1 microM. We also found that sodium chromate induces chromosomal aberrations, causing chromatid lesions and exchanges that increase with concentration. Treatments of 0, 1, 5, 10 and 25 microM sodium chromate damaged 10.3, 17, 32.3, 43 and 51.6% of metaphases and induced 13, 23, 44, 69 and 118 total aberrations in 100 metaphases, respectively. These data show that hexavalent chromium is both cytotoxic and genotoxic to fish cells. Our results set the context for future work in the medaka cell culture model and provide important tools for investigating mechanisms of toxicity in aquatic organisms.
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Affiliation(s)
- Britton C Goodale
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth Street, P.O. Box 9300, Portland, ME 04104, United States
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Gastaldo J, Viau M, Bencokova Z, Joubert A, Charvet AM, Balosso J, Foray N. Lead contamination results in late and slowly repairable DNA double-strand breaks and impacts upon the ATM-dependent signaling pathways. Toxicol Lett 2007; 173:201-14. [PMID: 17855027 DOI: 10.1016/j.toxlet.2007.08.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Revised: 08/03/2007] [Accepted: 08/03/2007] [Indexed: 11/26/2022]
Abstract
Despite a considerable amount of data, evaluation of the potential genotoxicity and cancer proneness of lead compounds remains unclear, probably due to the plethora of experimental procedures, biological endpoints and cellular models used. In parallel, the understanding in DNA damage formation, repair and signaling has considerably progressed all along these last years, notably for DNA double-strand breaks (DSBs). Here, were examined DNA damage formation and repair in human cells exposed to lead nitrate (Pb(NO(3))(2)) and their consequences upon the ATM-dependent stress signaling, cell cycle progression and cell death. As observed with anti-pH2AX immunofluorescence, exposure to Pb(NO(3))(2) results in formation of late DSBs, that would not originate from conversion of nucleotide damage but likely by a direct production of single-strand breaks. Lead contamination inhibits non-homologous end-joining repair process by preventing the DNA-PK kinase activity whereas the MRE11-dependent repair pathway is exacerbated. Lead contamination triggers successive synchronization of cells in G2/M phase in which the RAD51-dependent homologous recombination was found to be activated. Altogether, our findings support that lead contamination generates late unrepairable DSBs that impact upon the ATM-dependent stress signaling pathway by favoring propagation of errors. Such findings should help to consider more carefully the biological action of lead compounds in the frame of public and occupational exposures.
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Affiliation(s)
- Jérôme Gastaldo
- INSERM, U647, ID17, European Synchrotron Radiation Facility, 38043 Grenoble, France
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25
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Papageorgiou I, Brown C, Schins R, Singh S, Newson R, Davis S, Fisher J, Ingham E, Case CP. The effect of nano- and micron-sized particles of cobalt–chromium alloy on human fibroblasts in vitro. Biomaterials 2007; 28:2946-58. [PMID: 17379299 DOI: 10.1016/j.biomaterials.2007.02.034] [Citation(s) in RCA: 285] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Accepted: 02/22/2007] [Indexed: 12/13/2022]
Abstract
Wear debris from metal on polyethylene joint replacements causes asceptic loosening as a result of an inflammatory reaction of macrophages to micron-sized particles. Metal on metal implants, which generate nanoparticles, have been reintroduced into surgical practise in order to avoid this problem. There is a current concern about possible long-term effects of exposure to metal particles. In this study, the cytotoxic and genotoxic effects of nanoparticles and micron-sized particles of cobalt chrome alloy have been compared using human fibroblasts in tissue culture. Nanoparticles, which caused more free radicals in an acellular environment, induced more DNA damage than micron-sized particles using the alkaline comet assay. They induced more aneuploidy and more cytotoxicity at equivalent volumetric dose. Nanoparticles appeared to disintegrate within the cells faster than microparticles with the creation of electron dense deposits in the cell, which were enriched in cobalt. The mechanism of cell damage appears to be different after exposure to nanoparticles and microparticles. The concept of nanotoxicology is, therefore, an important consideration in the design of future surgical devices.
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Affiliation(s)
- I Papageorgiou
- Bristol Implant Research Centre, Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, UK
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Wise SS, Holmes AL, Xie H, Thompson WD, Wise JP. Chronic exposure to particulate chromate induces spindle assembly checkpoint bypass in human lung cells. Chem Res Toxicol 2007; 19:1492-8. [PMID: 17112237 DOI: 10.1021/tx0601410] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One of the hallmarks of lung cancer is chromosome instability (CIN), particularly a tetraploid phenotype, which is normally prevented by the spindle assembly checkpoint. Hexavalent chromium Cr(VI) is an established human lung carcinogen, and Cr(VI) induces tumors at lung bifurcation sites where Cr(VI) particles impact and persist. However, the effects of Cr(VI) on the spindle assembly checkpoint are unknown and little is known about prolonged exposure to particulate Cr(VI). Accordingly, we investigated particulate Cr(VI)-induced bypass of the spindle assembly checkpoint after several days of exposure in WHTBF-6 cells. We found that lead chromate indeed induces spindle assembly checkpoint bypass in human lung cells, as 72, 96, and 120 h treatments with 0.5 or 1 microg/cm2 lead chromate induced significant increases in the percentage of cells with aberrant mitotic figures. For example, treatment with 1 microg/cm2 lead chromate for 96 h induced 11, 12.3, and 14% of cells with premature anaphase, centromere spreading and premature centromere division, respectively. In addition, we found a disruption of mitosis with more cells accumulating in anaphase; cells treated for 96 h increased from 18% in controls to 31% in cells treated with lead chromate. To confirm involvement of the spindle assembly checkpoint, Mad2 expression was used as a marker. Mad2 expression was decreased in cells exposed to chronic treatments of lead chromate, consistent with disruption of the checkpoint. We also found concentration- and time-dependent increases in tetraploid cells, which continued to grow and form colonies. When cells were treated with chronic lead alone there was no increase in aberrant mitotic cells or polyploidy; however, chronic exposure to a soluble Cr(VI) showed an increase in aberrant mitotic cells and polyploidy. These data suggest that lead chromate does induce CIN and may be one mechanism in the development of Cr(VI)-induced lung cancer.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., Portland, Maine 04104-9300, USA
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Wise SS, Holmes AL, Moreland JA, Xie H, Sandwick SJ, Stackpole MM, Fomchenko E, Teufack S, May AJ, Katsfis SP, Wise JP. Human lung cell growth is not stimulated by lead ions after lead chromate-induced genotoxicity. Mol Cell Biochem 2007; 279:75-84. [PMID: 16283516 DOI: 10.1007/s11010-005-8217-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Chromate compounds are known human lung carcinogens. Water solubility is an important factor in the carcinogenicity of these compounds with the most potent carcinogenic compounds being water-insoluble or 'particulate'. Previously we have shown that particulate chromates dissolve extracellularly releasing chromium (Cr) and lead (Pb) ions and only the Cr ions induce genotoxicity. Pb ions have been considered to have epigenetic effects and it is thought that these may enhance the carcinogenic activity of lead chromate, perhaps by stimulating Cr-damaged cells to divide. However, this possibility has not been directly tested. Accordingly, we investigated the ability of Pb ions to stimulate human lung cells and possibly force lead chromate-damaged cells to grow. We found that at concentrations of lead chromate that induced damage, human lung cells exhibited cell cycle arrest and growth inhibition that were very similar to those observed for sodium chromate. Moreover, we found that soluble Pb ions were not growth stimulatory to human lung cells and in fact induced progressive mitotic arrest. These data indicate that lead chromate-generated Cr ions cause growth inhibition and cell cycle arrest and that Pb does not induce epigenetic effects that stimulate chromate-damaged cells to grow.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, Maine 04104-9300, USA
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Papageorgiou I, Yin Z, Ladon D, Baird D, Lewis AC, Sood A, Newson R, Learmonth ID, Case CP. Genotoxic effects of particles of surgical cobalt chrome alloy on human cells of different age in vitro. Mutat Res 2007; 619:45-58. [PMID: 17376492 DOI: 10.1016/j.mrfmmm.2007.01.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2006] [Revised: 11/24/2006] [Accepted: 01/17/2007] [Indexed: 11/24/2022]
Abstract
Humans are exposed to metals from industry, the environment and from wear debris from worn orthopaedic joint replacements. Patients exposed to worn cobalt chrome hip replacements show an increase of chromosome aberrations in the bone marrow adjacent to the implant and an increase of chromosome translocations and aneuploidy in the peripheral blood. This study has tested whether particles of surgical cobalt chrome alloy are able to induce similar DNA damage and chromosome aberrations in human cells in vitro. Because increasingly young patients are receiving hip replacements it has also tested whether the response is altered at different cellular age in vitro. Primary human fibroblasts, were tested at different pre senescent population doublings (PD10 (young) and PD35 (older)) to particles of cobalt chrome alloy for up to 15 days. As in patients there was an increase of aneuploidy, chromosome translocations and DNA damage after exposure to the cobalt chrome particles in vitro. The overall level of DNA damage and numerical and structural aberrations was approximately the same in young and older cells. However, the cellular reaction to the DNA damage was different. Older cells showed a greater loss of viability and induction of senescence and a lesser rate of mitosis and cell growth than young cells. They showed less change in transcription, particularly of p38 and caspase 10 mRNA levels, than young cells. They showed more complex aneuploidy in association with unseparated or prematurely separated chromatids. This study suggests that at least part of the chromosome changes in patients with worn implants may be due to direct effects of the metal wear particles from the implant. It would be of interest to test whether the altered reaction of the human cells at different in vitro age might correspond with a different incidence of chromosome aberrations in patients at different ages.
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Affiliation(s)
- Iraklis Papageorgiou
- Bristol Implant Research Centre, Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, United Kingdom
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Savery LC, Grlickova-Duzevik E, Wise SS, Thompson WD, Hinz JM, Thompson LH, Wise JP. Role of the Fancg gene in protecting cells from particulate chromate-induced chromosome instability. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2007; 626:120-7. [PMID: 17097336 DOI: 10.1016/j.mrgentox.2006.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Revised: 09/14/2006] [Accepted: 09/15/2006] [Indexed: 12/22/2022]
Abstract
Particulate hexavalent chromium (Cr(VI)) is a known human lung carcinogen. Cr(VI)-induced tumors exhibit chromosome instability (CIN), but the mechanisms underlying these effects are unknown. We investigated a possible role for the Fanconi anemia (FA) pathway in particulate Cr(VI)-induced chromosomal damage by focusing on the Fancg gene, which plays an important role in cellular resistance to DNA interstrand crosslinks. We used the isogenic Chinese hamster ovary (CHO) KO40 fancg mutant compared with parental and gene-complemented cells. We found that fancg cells treated with lead chromate had lower intracellular Cr ion levels than control cell lines. Accounting for differences of Cr ion levels between cell lines, we discovered that fancg cells treated with lead chromate had increased cytotoxicity and chromosomal aberrations, which was not observed after restoring the Fancg gene. Chromosomal damage was manifest as increased total chromosome damage and percent metaphases with damage, specifically an increase in chromatid and isochromatid breaks. We conclude that Fancg protects cells from particulate Cr(VI)-induced cytotoxicity and chromosome damage, which is consistent with the known sensitivity of fancg cells to crosslinking damage and the ability of Cr(VI) to produce crosslinks.
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Affiliation(s)
- Laura C Savery
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth Street, P.O. Box 9300, Portland, ME 04104-9300, USA
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Wise SS, Holmes AL, Wise JP. Particulate and soluble hexavalent chromium are cytotoxic and genotoxic to human lung epithelial cells. Mutat Res 2006; 610:2-7. [PMID: 16872863 DOI: 10.1016/j.mrgentox.2006.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2006] [Indexed: 05/11/2023]
Abstract
Particulate hexavalent chromium (Cr(VI)) is a well-established human lung carcinogen. It is currently a major public health concern, there is widespread exposure to it in occupational settings and to the general public. However, despite the potential widespread exposure and the fact that the lung is its target organ, few studies have considered the toxic effects of particulate Cr(VI) in human lung cells. Accordingly, we used lead chromate as a model particulate Cr(VI) compound and determined its cytotoxicity and genotoxicity in cultured human bronchial epithelial cells, using BEP2D cells as a model cell line. We found that lead chromate induced concentration-dependent cytotoxicity in BEP2D cells after a 24h exposure. Specifically, the relative survival was 78, 59, 53, 46 and 0% after exposure to 0.5, 1, 5, 10 and 50 microg/cm(2) lead chromate, respectively. Similarly, the amount of chromosome damage increased with concentration after 24h exposure to lead chromate. Specifically, 0.5, 1, 5 and 10 microg/cm(2) damaged 10, 13, 20 and 28% of metaphase cells with the total amount of damage reaching 11, 15, 24 and 36 aberrations per 100 metaphases, respectively. Lead chromate (50 microg/cm(2) lead chromate) induced profound cell cycle delay and no metaphases were found. In addition we investigated the effects of soluble hexavalent chromium, sodium chromate, in this cell line. We found that 1, 2.5, 5 and 10 microM sodium chromate induced 66, 35, 0 and 0% relative survival, respectively. The amount of chromosome damage increased with concentration after 24h exposure to sodium chromate. Specifically, 1, 2.5 and 5 microM damaged 25, 34 and 41% of metaphase cells with the total amount of damage reaching 33, 59 and 70 aberrations per 100 metaphases, respectively. Ten micromolar sodium chromate induced profound cell cycle delay and no metaphases were found. Overall the data clearly indicate that hexavalent Cr(VI) is cytotoxic and genotoxic to human lung epithelial cells.
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Affiliation(s)
- Sandra S Wise
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, University of Southern Maine, PO Box 9300, Portland, ME 04103-9300, United States
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Holmes AL, Wise SS, Sandwick SJ, Wise JP. The clastogenic effects of chronic exposure to particulate and soluble Cr(VI) in human lung cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2006; 610:8-13. [PMID: 16870495 DOI: 10.1016/j.mrgentox.2006.06.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/05/2006] [Indexed: 10/24/2022]
Abstract
Hexavalent chromium (Cr(VI)) is a well-designated human lung carcinogen, with solubility playing an important role in its carcinogenic potential. Although it is known that particulate or water-insoluble Cr(VI) compounds are more potent than the soluble species of this metal, the mechanisms of action are not fully elucidated. In this study, we investigated the hypothesis that the difference in potency between particulate and soluble Cr(VI) is due to more chronic exposures with particulate chromate because it can deposit and persist in the lungs while soluble chromate is rapidly cleared. Chronic exposure to both insoluble lead chromate and soluble sodium chromate induced a concentration and time-dependent increase in intracellular Cr ion concentrations in cultured human lung fibroblasts. Intracellular Pb levels after chronic exposure to lead chromate increased in a concentration-dependent manner but did not increase with longer exposure times up to 72 h. We also investigated the effects of chronic exposure to Cr(VI) on clastogenicity and found that chronic exposure to lead chromate induces persistent or increasing chromosome damage. Specifically, exposure to 0.5 microg/cm(2) lead chromate for 24, 48 and 72 h induced 23, 23 and 27% damaged metaphases, respectively. Contrary to lead chromate, the amount of chromosome damage after chronic exposure to sodium chromate decreased with time. For example, cells exposed to 1 microM sodium chromate for 24, 48 and 72 h induced 23, 13 and 17% damaged metaphases, respectively. Our data suggest a possible mechanism for the observed potency difference between soluble and insoluble Cr(VI) compounds is that chronic exposure to particulate Cr(VI) induces persistent chromosome damage and chromosome instability while chromosome damage is repaired with chronic exposure to soluble Cr(VI).
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Affiliation(s)
- Amie L Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth Street, Portland, ME 04104-9300, United States
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Grlickova-Duzevik E, Wise SS, Munroe RC, Thompson WD, Wise JP. XRCC1 protects against particulate chromate-induced chromosome damage and cytotoxicity in Chinese hamster ovary cells. Toxicol Sci 2006; 92:409-15. [PMID: 16714390 DOI: 10.1093/toxsci/kfl021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Water-insoluble hexavalent chromium compounds are well-established human lung carcinogens. Lead chromate, a model insoluble Cr(VI) compound, induces DNA damage, chromosome aberrations, and dose-dependent cell death in human and Chinese hamster ovary (CHO) cells. The relationship between lead chromate-induced DNA damage and chromosome aberrations is unknown. Our study focus was on examining the role of XRCC1 in lead chromate-induced cytotoxicity and structural chromosomal aberrations in CHO cells. Three different cell lines were used: AA8 (parental), EM9 (XRCC1 mutant), and H9T3 (EM9 complemented with human XRCC1 gene). Cytotoxicity was significantly higher in EM9 cells when compared to AA8 and H9T3 cells, indicating that XRCC1 is important for protecting cells from lead chromate particles-induced cell death. The frequency of damaged metaphase cells was not affected by XRCC1 deficiency. However, the total amount of Cr(VI)-induced chromosome damage was exacerbated by XRCC1 deficiency, and the spectrum of damage changed dramatically. Chromatid and isochromatid lesions were the most prominent aberrations induced in all cell lines. XRCC1 was essential to reduce the formation of chromatid lesions but not for isochromatid lesions. In addition, XRCC1 deficiency resulted in a dramatic increase in the number of chromatid exchanges, indicating that XRCC1 is involved in protection from lead chromate-induced chromosome instability.
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Affiliation(s)
- Eliza Grlickova-Duzevik
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, University of Southern Maine, Portland, 04104-9300, USA
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Holmes AL, Wise SS, Sandwick SJ, Lingle WL, Negron VC, Thompson WD, Wise JP. Chronic Exposure to Lead Chromate Causes Centrosome Abnormalities and Aneuploidy in Human Lung Cells. Cancer Res 2006; 66:4041-8. [PMID: 16618723 DOI: 10.1158/0008-5472.can-05-3312] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hexavalent chromium [Cr(VI)] compounds are established human lung carcinogens. The carcinogenicity of Cr(VI) is related to its solubility, with the most potent carcinogens being the insoluble particulate Cr(VI) compounds. However, it remains unknown why particulate Cr(VI) is more carcinogenic than soluble Cr(VI). One possible explanation is that particulates may provide more chronic exposures to chromate over time. We found that aneuploid cells increased in a concentration- and time-dependent manner after chronic exposure to lead chromate. Specifically, a 24-hour lead chromate exposure induced no aneugenic effect, whereas a 120-hour exposure to 0.5 and 1 microg/cm2 lead chromate induced 55% and 60% aneuploid metaphases, respectively. We also found that many of these aneuploid cells were able to continue to grow and form colonies. Centrosome defects are known to induce aneuploidy; therefore, we investigated the effects of chronic lead chromate exposure on centrosomes. We found that centrosome amplification in interphase and mitotic cells increased in a concentration- and time-dependent manner with 0.5 and 1 microg/cm2 lead chromate for 120 hours, inducing aberrant centrosomes in 18% and 21% of interphase cells and 32% and 69% of mitotic cells, respectively; however, lead oxide did not induce centrosome amplification in interphase or mitotic cells. There was also an increase in aberrant mitosis after chronic exposure to lead chromate with the emergence of disorganized anaphase and mitotic catastrophe. These data suggest that one possible mechanism for lead chromate-induced carcinogenesis is through centrosome dysfunction, leading to the induction of aneuploidy.
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Affiliation(s)
- Amie L Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, Portland, Maine, USA
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Grlickova-Duzevik E, Wise SS, Munroe RC, Thompson WD, Wise JP. XRCC1 protects against particulate chromate-induced chromosome damage and cytotoxicity in Chinese hamster ovary cells. Toxicol Sci 2006; 92:96-102. [PMID: 16597656 DOI: 10.1093/toxsci/kfj183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Water-insoluble hexavalent chromium compounds are well-established human lung carcinogens. Lead chromate, a model insoluble Cr(VI) compound, induces DNA damage, chromosome aberrations, and dose-dependent cell death in human and Chinese hamster ovary (CHO) cells. The relationship between lead chromate-induced DNA damage and chromosome aberrations is unknown. Our study focus was on examining the role of XRCC1 in lead chromate-induced cytotoxicity and structural chromosomal aberrations in CHO cells. Three different cell lines were used: AA8 (parental), EM9 (XRCC1 mutant), and H9T3 (EM9 complemented with human XRCC1 gene). Cytotoxicity was significantly higher in EM9 cells when compared to AA8 and H9T3 cells, indicating that XRCC1 is important for protecting cells from lead chromate particles-induced cell death. The frequency of damaged metaphase cells was not affected by XRCC1 deficiency. However, the total amount of Cr(VI)-induced chromosome damage was exacerbated by XRCC1 deficiency, and the spectrum of damage changed dramatically. Chromatid and isochromatid lesions were the most prominent aberrations induced in all cell lines. XRCC1 was essential to reduce the formation of chromatid lesions, but not for isochromatid lesions. In addition, XRCC1 deficiency resulted in a dramatic increase in the number of chromatid exchanges, indicating that XRCC1 is involved in protection from lead chromate-induced chromosome instability.
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Affiliation(s)
- Eliza Grlickova-Duzevik
- Wise Laboratory of Environmental and Genetic Toxicology, Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth Street, Portland, ME 04104-9300, USA
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Xie H, Wise SS, Holmes AL, Xu B, Wakeman TP, Pelsue SC, Singh NP, Wise JP. Carcinogenic lead chromate induces DNA double-strand breaks in human lung cells. Mutat Res 2005; 586:160-72. [PMID: 16112599 PMCID: PMC4136752 DOI: 10.1016/j.mrgentox.2005.06.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2005] [Revised: 06/23/2005] [Accepted: 06/24/2005] [Indexed: 04/30/2023]
Abstract
Hexavalent chromium (Cr(VI)) is a widespread environmental contaminant and a known human carcinogen, generally causing bronchial cancer. Recent studies have shown that the particulate forms of Cr(VI) are the potent carcinogens. Particulate Cr(VI) is known to induce a spectrum of DNA damage such as DNA single strand breaks, Cr-DNA adducts, DNA-protein crosslinks and chromosomal aberrations. However, particulate Cr(VI)-induced DNA double strand breaks (DSBs) have not been reported. Thus, the aim of this study was to determine if particulate Cr(VI)-induces DSBs in human bronchial cells. Using the single cell gel electrophoresis assay (comet assay), showed that lead chromate-induced concentration dependent increases in DSBs with 0.1, 0.5, 1 and 5 microg/cm2 lead chromate inducing a 20, 50, 67 and 109% relative increase in the tail integrated intensity ratio, respectively. Sodium chromate at concentrations of 1, 2.5 and 5 microM induced 38, 78 and 107% relative increase in the tail integrated intensity ratio, respectively. We also show that genotoxic concentrations of lead chromate activate the ataxia telangiectasia mutated (ATM) protein, which is thought to play a central role in the early stages of DSB detection and controls cellular responses to this damage. The H2A.X protein becomes rapidly phosphorylated on residue serine 139 in cells when DSBs are introduced into the DNA by ionizing radiation. By using immunofluorescence, we found that lead chromate-induced concentration-dependent increases in phosphorylated H2A.X (r-H2A.X) foci formation with 0.1, 0.5, 1, 5 and 10 microg/cm2 lead chromate inducing a relative increase in the number of cells with r-H2A.X foci formation of 43, 51, 115 and 129%, respectively.
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Affiliation(s)
- Hong Xie
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
| | - Sandra S. Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
| | - Amie L. Holmes
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
| | - Bo Xu
- Department of Biochemistry and Molecular Biology, Stanley S. Scott Cancer Center, LSU Health Sciences Center, 533 Bolivar Street, Room 406 CSRB, New Orleans, LA 70112, USA
- Department of Genetics, Stanley S. Scott Cancer Center, LSU Health Sciences Center, 533 Bolivar Street, Room 406 CSRB, New Orleans, LA 70112, USA
| | - Timothy P. Wakeman
- Department of Biochemistry and Molecular Biology, Stanley S. Scott Cancer Center, LSU Health Sciences Center, 533 Bolivar Street, Room 406 CSRB, New Orleans, LA 70112, USA
| | - Stephen C. Pelsue
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
- Department of Applied Medical Science, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
| | - Narendra P. Singh
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - John Pierce Wise
- Wise Laboratory of Environmental and Genetic Toxicology, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
- Maine Center for Toxicology and Environmental Health, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
- Department of Applied Medical Science, University of Southern Maine, 96 Falmouth St., P.O. Box 9300, Portland, ME 04104-9300, USA
- Corresponding author. Tel.: +1 207 228 8050; fax: +1 207 228 8057. (J.P. Wise Sr.)
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Mutation research, genetic toxicology and environmental mutagenesis. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2005. [DOI: 10.1016/j.mrgentox.2004.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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