1
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Issler T, Sule K, Lewrenz AM, Prenner EJ. Differential interactions of essential and toxic metal ions with biologically relevant phosphatidic acid and phosphatidylserine membranes. Biometals 2024; 37:631-648. [PMID: 38289415 DOI: 10.1007/s10534-023-00576-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 12/20/2023] [Indexed: 05/18/2024]
Abstract
Metal pollutants are a growing concern due to increased use in mining and other industrial processes. Moreover, the use of metals in daily life is becoming increasingly prevalent. Metals such as manganese (Mn), cobalt (Co), and nickel (Ni) are toxic in high amounts whereas lead (Pb) and cadmium (Cd) are acutely toxic at low µM concentrations. These metals are associated with system dysfunction in humans including cancer, neurodegenerative diseases, Alzheimer's disease, Parkinson's disease, and other cellular process'. One known but lesser studied target of these metals are lipids that are key membrane building blocks or serve signalling functions. It was shown that Mn, Co, Ni, Pb, and Cd cause rigidification of liposomes and increase the phase transition in membranes composed of both saturated or partly unsaturated phosphatidic acid (PA) and phosphatidylserine (PS). The selected metals showed differential effects that were more pronounced on saturated lipids. In addition, more rigidity was induced in the biologically relevant liquid-crystalline phase. Moreover, metal affinity, induced rigidification and liposome size increases also varied with the headgroup architecture, whereby the carboxyl group of PS appeared to play an important role. Thus, it can be inferred that Mn, Co, Ni, Cd, and Pb may have preferred binding coordination with the lipid headgroup, degree of acyl chain unsaturation, and membrane phase.
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Affiliation(s)
- Travis Issler
- Deptartment of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Kevin Sule
- Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA
| | - Anna-Marie Lewrenz
- Deptartment of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Elmar J Prenner
- Deptartment of Biological Sciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
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2
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Zeng Y, Yang Q, Ouyang Y, Lou Y, Cui H, Deng H, Zhu Y, Geng Y, Ouyang P, Chen L, Zuo Z, Fang J, Guo H. Nickel induces blood-testis barrier damage through ROS-mediated p38 MAPK pathways in mice. Redox Biol 2023; 67:102886. [PMID: 37742495 PMCID: PMC10520947 DOI: 10.1016/j.redox.2023.102886] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023] Open
Abstract
Nickel (Ni) is an essential common environmental contaminant, it is hazardous to male reproduction, but the precise mechanisms are still unknown. Blood-testis barrier (BTB), an important testicular structure consisting of connections between sertoli cells, is the target of reproductive toxicity caused by many environmental toxins. In this study, ultrastructure observation and BTB integrity assay results indicated that NiCl2 induced BTB damage. Meanwhile, BTB-related proteins including the tight junction (TJ), adhesion junction (AJ) and the gap junction (GJ) protein expression in mouse testes as well as in sertoli cells (TM4) were significantly decreased after NiCl2 treatment. Next, the antioxidant N-acetylcysteine (NAC) was co-treated with NiCl2 to study the function of oxidative stress in NiCl2-mediated BTB deterioration. The results showed that NAC attenuated testicular histopathological damage, and the expression of BTB-related proteins were markedly reversed by NAC co-treatment in vitro and vivo. Otherwise, NiCl2 activated the p38 MAPK signaling pathway. And, NAC co-treatment could significantly inhibit p38 activation induced by NiCl2 in TM4 cells. Furthermore, in order to confirm the role of the p38 MAPK signaling pathway in NiCl2-induced BTB impairment, a p38 inhibitor (SB203580) was co-treated with NiCl2 in TM4 cells, and p38 MAPK signaling inhibition significantly restored BTB damage induced by NiCl2 in TM4 cells. These results suggest that NiCl2 treatment destroys the BTB, in which the oxidative stress-mediated p38 MAPK signaling pathway plays a vital role.
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Affiliation(s)
- Yuxin Zeng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Qing Yang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Yujuan Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Yanbin Lou
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, PR China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, PR China
| | - Yanqiu Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China
| | - Lian Chen
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, PR China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, PR China.
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, PR China.
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, PR China.
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3
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Guo H, Wei L, Wang Y, Cui H, Deng H, Zhu Y, Deng J, Geng Y, Ouyang P, Lai W, Du Z, Ni X, Yin H, Fang J, Zuo Z. Nickel induces hepatotoxicity by mitochondrial biogenesis, mitochondrial dynamics, and mitophagy dysfunction. ENVIRONMENTAL TOXICOLOGY 2023; 38:1185-1195. [PMID: 36794572 DOI: 10.1002/tox.23758] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/18/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Nickel (Ni) is an important and widely hazardous chemical industrial waste. Excessive Ni exposure could cause multi-organs toxicity in human and animals. Liver is the major target organ of Ni accumulation and toxicity, however, the precise mechanism is still unclear. In this study, nickel chloride (NiCl2 )-treatment induced hepatic histopathological changes in the mice, and, transmission electron microscopy results showed mitochondrial swollen and deformed of hepatocyte. Next, the mitochondrial damages including mitochondrial biogenesis, mitochondrial dynamics, and mitophagy were measured after NiCl2 administration. The results showed that NiCl2 suppressed mitochondrial biogenesis by decreasing PGC-1α, TFAM, and NRF1 protein and mRNA expression levels. Meanwhile, the proteins involved in mitochondrial fusion were reduced by NiCl2 , such as Mfn1 and Mfn2, however, mitochondrial fission proteins Drip1 and Fis1 were significantly increased. The up-regulation of mitochondrial p62 and LC3II expression indicated that NiCl2 increased mitophagy in the liver. Moreover, the receptor-mediated mitophagy and ubiquitin (Ub)-dependent mitophagy were detected. NiCl2 promoted PINK1 accumulation and Parkin recruitment on mitochondria. And, the receptor proteins of mitophagy Bnip3 and FUNDC1 were increased in the NiCl2 -treated mice liver. Overall, these results show that NiCl2 could induce mitochondria damage in the liver of mice, and, dysfunction of mitochondrial biogenesis, mitochondrial dynamics and mitophagy involved in the molecular mechanism of NiCl2 -induced hepatotoxicity.
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Affiliation(s)
- Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Ling Wei
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yihan Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Huidan Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Yanqiu Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Weiming Lai
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Zongjun Du
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Xueqin Ni
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Heng Yin
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Chengdu, China
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McClain CR, Bryant SR, Hanks G, Bowles MW. Extremophiles in Earth's Deep Seas: A View Toward Life in Exo-Oceans. ASTROBIOLOGY 2022; 22:1009-1028. [PMID: 35549348 DOI: 10.1089/ast.2021.0120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Humanity's search for extraterrestrial life is a modern manifestation of the exploratory and curious nature that has led us through millennia of scientific discoveries. With the ongoing exploration of extraterrestrial bodies, the potential for discovery of extraterrestrial life has expanded. We may better inform this search through an understanding of how life persists and flourishes on Earth in a myriad of environmental extremes. A significant proportion of our knowledge of extremophiles on Earth comes from studies on deep ocean life. Here, we review and synthesize the range of environmental extremes observed in the deep sea, the life that persists in these extreme conditions, and the biological adaptations utilized by these remarkable life-forms. We also review confirmed and predicted extraterrestrial oceans in our solar system and propose deep-sea sites that may serve as planetary field analog environments. We show that the clever ingenuity of evolution under deep-sea conditions suggests that the plausibility of extraterrestrial life is much greater than previously thought.
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Affiliation(s)
- Craig R McClain
- Louisiana Universities Marine Consortium, Chauvin, Louisiana, USA
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, USA
| | - S River Bryant
- Louisiana Universities Marine Consortium, Chauvin, Louisiana, USA
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, USA
| | - Granger Hanks
- Louisiana Universities Marine Consortium, Chauvin, Louisiana, USA
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana, USA
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Full-Length Transcriptome Comparison Provides Novel Insights into the Molecular Basis of Adaptation to Different Ecological Niches of the Deep-Sea Hydrothermal Vent in Alvinocaridid Shrimps. DIVERSITY 2022. [DOI: 10.3390/d14050371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The deep-sea hydrothermal vent ecosystem is one of the extreme chemoautotrophic environments. Shinkaicaris leurokolos Kikuchi and Hashimoto, 2000, and Alvinocaris longirostris Kikuchi and Ohta, 1995, are typically co-distributed and closely related alvinocaridid shrimps in hydrothermal vent areas with different ecological niches, providing an excellent model for studying the adaptive evolution mechanism of animals in the extreme deep-sea hydrothermal vent environment. The shrimp S. leurokolos lives in close proximity to the chimney vent discharging high-temperature fluid, while A. longirostris inhabits the peripheral areas of hydrothermal vents. In this study, full-length transcriptomes of S. leurokolos and A. longirostris were generated using a combination of single-molecule real-time (SMRT) and Illumina RNA-seq technology. Expression analyses of the transcriptomes showed that among the top 30% of highly expressed genes of each species, more genes related to sulfide and heavy metal metabolism (sulfide: quinone oxidoreductase, SQR; persulfide dioxygenase, ETHE1; thiosulfate sulfurtransferase, TST, and ferritin, FRI) were specifically highly expressed in S. leurokolos, while genes involved in maintaining epibiotic bacteria or pathogen resistance (beta-1,3-glucan-binding protein, BGBP; endochitinase, CHIT; acidic mammalian chitinase, CHIA, and anti-lipopolysaccharide factors, ALPS) were highly expressed in A. longirostris. Gene family expansion analysis revealed that genes related to anti-oxidant metabolism (cytosolic manganese superoxide dismutase, SODM; glutathione S-transferase, GST, and glutathione peroxidase, GPX) and heat stress (heat shock cognate 70 kDa protein, HSP70 and heat shock 70 kDa protein cognate 4, HSP7D) underwent significant expansion in S. leurokolos, while CHIA and CHIT involved in pathogen resistance significantly expanded in A. longirostris. Finally, 66 positively selected genes (PSGs) were identified in the vent shrimp S. leurokolos. Most of the PSGs were involved in DNA repair, antioxidation, immune defense, and heat stress response, suggesting their function in the adaptive evolution of species inhabiting the extreme vent microhabitat. This study provides abundant genetic resources for deep-sea invertebrates, and is expected to lay the foundation for deep decipherment of the adaptive evolution mechanism of shrimps in a deep-sea chemosynthetic ecosystem based on further whole-genome comparison.
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Novel Zr-Rich Alloys of Ternary Ti-Zr-Nb System with Large Superelastic Recovery Strain. METALS 2022. [DOI: 10.3390/met12020185] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Four novel superelastic alloys, Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, Ti-44Zr-10Nb (at.%), were obtained and studied in terms of their microstructure and mechanical properties. The obtained alloys were subjected to thermomechanical treatment, providing alloys with a pronounced superelastic behavior. Materials phase composition and microstructure were studied using XRD and SEM methods. Based on the XRD results, maximum lattice strains in the [011]β direction were calculated as 5.9%, 6.3%, 7.5%, and 7.2% for Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, and Ti-44Zr-10Nb alloys, respectively. Mechanical properties of the thermomechanically-treated alloys were studied by Vickers microhardness testing, static tensile testing, and superelastic mechanical cycling. The maximum superelastic recovery strains attained at room temperature was 3.7%, 1.9%, 3.2%, and 3.0% for the Ti-41Zr-12Nb, Ti-42Zr-11Nb, Ti-43Zr-10Nb, and Ti-44Zr-10Nb alloys, respectively. Ti-41Zr-12Nb alloy demonstrated the highest ductility, with relative elongation to failure of over 20%, combined with the total recovery strain of more than 6%. Obtained results indicate that Ti-41Zr-12Nb is one the most promising alloys of the Ti-Zr-Nb system, with quite perfect superelastic behavior at room temperature.
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Yang Y, Zuo Z, Yang Z, Yin H, Wei L, Fang J, Guo H, Cui H, Ouyang P, Chen X, Chen J, Geng Y, Chen Z, Huang C, Zhu Y, Liu W. Nickel chloride induces spermatogenesis disorder by testicular damage and hypothalamic-pituitary-testis axis disruption in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112718. [PMID: 34478984 DOI: 10.1016/j.ecoenv.2021.112718] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
As a common environmental pollutant, nickel chloride (NiCl2) poses serious threat to human and animals health. NiCl2 has adverse effects on reproductive function in male, however, the underlying mechanisms are not fully illuminated. In this study, 64 male ICR mice were divided into four groups (8 mice per each period/ group), in which mice orally administrated with 0, 7.5, 15 or 30 mg/kg body weight for 14 or 28 consecutive days, respectively. The results showed that the sperm concentration (12.95%, 29.78% and 37.63% -) and sperm motility (19.79%, 34.88% and 43.10%) were dose-dependent significantly reduced, and the total sperm malformation rates (110.15%, 206.84% and 292.27%) were dose-dependent significantly elevated in the 7.5, 15 and 30 mg/kg NiCl2 treatment groups (vs control at 28 days), respectively (P < 0.05). Meanwhile, NiCl2 also decreased the relative weights of testis and epididymis and caused histopathological lesions of testis and epididymis. Furthermore, serum testosterone levels were significantly decreased after NiCl2 treatment. And the findings showed that NiCl2 down-regulated the expression of LH-R, StAR, P450scc, 3β-HSD, 17β-HSD, ABP and INHβB in the testis, however, the relative genes in the hypothalamus (Kiss-1, GPR54 and GnRH) and pituitary (GnRH-R, LHβ and FSHβ) did not exhibit noticeable change. In summary, NiCl2 induced spermatogenesis disorder by testicular damage and hypothalamic-pituitary-testis axis disruption in mice, and only impaired the genes on the testis of HPT axis.
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Affiliation(s)
- Yue Yang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Zhuangzhi Yang
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu, Sichuan 611130, PR China
| | - Heng Yin
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Ling Wei
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, PR China.
| | - Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, PR China.
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu 611130, PR China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Xia Chen
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu, Sichuan 611130, PR China
| | - Jian Chen
- Chengdu Academy of Agriculture and Forestry Sciences, Chengdu, Sichuan 611130, PR China
| | - Yi Geng
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Zhengli Chen
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Chao Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Yanqiu Zhu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Wentao Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
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Kocadal K, Alkas FB, Ulutas OK, Kurt MA, Battal D, Sardas S, Etikan I, Saygi S. Biomonitoring of Heavy Metal(oid)s in the Residents of Abandoned Mining District in Northern Cyprus. Biol Trace Elem Res 2021; 199:3667-3676. [PMID: 33409917 DOI: 10.1007/s12011-020-02520-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 11/28/2022]
Abstract
Several heavy metal(oid)s are known mutagens and/or carcinogens. Exposure to these elements can lead to the development of malignancies. Gemikonagi, which is in the western part of Cyprus, was the hometown of mining operations. It is believed that the mining site is a significant heavy metal(oid) source for the environment and residents. In this biomonitoring study, a total of 60 blood samples from Gemikonagi region (n = 30) and from a control region located 40 km northeast from the mining site, Tepebasi (n = 30), and 5 soil samples from each region were collected to conduct heavy metal analysis using ICP-MS. To conduct genotoxicity analysis, alkaline comet assay and in vivo micronucleus assays were used. t test for independent samples and Mann-Whitney U tests were applied. Copper and iron were found to be enriched in Gemikonagi, while arsenic was found to be enriched in Tepebasi. Genotoxicity analyses demonstrated a statistically significant increase in parameters of micronuclei frequency (p value = 0.0001) and Comet Assay statistics upon exposure to some elements, such as arsenic (p value = 0.04) and copper (p value = 0.012). The results indicate that a general enrichment in heavy elements is not endemic to Gemikonagi, but a problem that might be generalized to the entirety of Cyprus. Graphical abstract.
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Affiliation(s)
- Kumsal Kocadal
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
| | - Fehmi Burak Alkas
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
| | - Onur Kenan Ulutas
- Department of Toxicology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | - Mehmet Ali Kurt
- Department of Env. Eng., Faculty of Engineering, Mersin University, 33169, Mersin, Turkey
| | - Dilek Battal
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus.
- Department of Toxicology, Faculty of Pharmacy, Mersin University, 33169, Mersin, Turkey.
| | - Semra Sardas
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
- Department of Toxicology, Faculty of Pharmacy, Istinye University, 34010, Istanbul, Turkey
| | - Ilker Etikan
- Department of Biostatistics, Faculty of Medicine, Near East University, 99138, Nicosia, North Cyprus
| | - Sahan Saygi
- Department of Toxicology, Faculty of Pharmacy, Near East University, 99138, Nicosia, North Cyprus
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9
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The Role of Toxic Metals and Metalloids in Nrf2 Signaling. Antioxidants (Basel) 2021; 10:antiox10050630. [PMID: 33918986 PMCID: PMC8142989 DOI: 10.3390/antiox10050630] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 12/18/2022] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2), an emerging regulator of cellular resistance to oxidants, serves as one of the key defensive factors against a range of pathological processes such as oxidative damage, carcinogenesis, as well as various harmful chemicals, including metals. An increase in human exposure to toxic metals via air, food, and water has been recently observed, which is mainly due to anthropogenic activities. The relationship between environmental exposure to heavy metals, particularly cadmium (Cd), lead (Pb), mercury (Hg), and nickel (Ni), as well as metaloid arsenic (As), and transition metal chromium (Cr), and the development of various human diseases has been extensively investigated. Their ability to induce reactive oxygen species (ROS) production through direct and indirect actions and cause oxidative stress has been documented in various organs. Taking into account that Nrf2 signaling represents an important pathway in maintaining antioxidant balance, recent research indicates that it can play a dual role depending on the specific biological context. On one side, Nrf2 represents a potential crucial protective mechanism in metal-induced toxicity, but on the other hand, it can also be a trigger of metal-induced carcinogenesis under conditions of prolonged exposure and continuous activation. Thus, this review aims to summarize the state-of-the-art knowledge regarding the functional interrelation between the toxic metals and Nrf2 signaling.
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10
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Saran U, Tyagi A, Chandrasekaran B, Ankem MK, Damodaran C. The role of autophagy in metal-induced urogenital carcinogenesis. Semin Cancer Biol 2021; 76:247-257. [PMID: 33798723 DOI: 10.1016/j.semcancer.2021.03.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 12/13/2022]
Abstract
Environmental and/or occupational exposure to metals such as Arsenic (As), Cadmium (Cd), and Chromium (Cr) have been shown to induce carcinogenesis in various organs, including the urogenital system. However, the mechanisms responsible for metal-induced carcinogenesis remain elusive. We and others have shown that metals are potent inducers of autophagy, which has been suggested to be an adaptive stress response to allow metal-exposed cells to survive in hostile environments. Albeit few, recent experimental studies have shown that As and Cd promote tumorigenesis via autophagy and that inhibition of autophagic signaling suppressed metal-induced carcinogenesis. In light of the newly emerging role of autophagic involvement in metal-induced carcinogenesis, the present review focuses explicitly on the mechanistic role of autophagy and potential signaling pathways involved in As-, Cd-, and Cr-induced urogenital carcinogenesis.
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Affiliation(s)
- Uttara Saran
- Department of Urology, University of Louisville, Louisville, KY, United States
| | - Ashish Tyagi
- Department of Urology, University of Louisville, Louisville, KY, United States
| | | | - Murali K Ankem
- Department of Urology, University of Louisville, Louisville, KY, United States
| | - Chendil Damodaran
- Department of Urology, University of Louisville, Louisville, KY, United States; College of Pharmacy, Department of Pharmaceutical Sciences, Texas A&M, College Station, TX, United States.
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11
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Lener MR, Reszka E, Marciniak W, Lesicka M, Baszuk P, Jabłońska E, Białkowska K, Muszyńska M, Pietrzak S, Derkacz R, Grodzki T, Wójcik J, Wojtyś M, Dębniak T, Cybulski C, Gronwald J, Kubisa B, Pieróg J, Waloszczyk P, Scott RJ, Jakubowska A, Narod SA, Lubiński J. Blood cadmium levels as a marker for early lung cancer detection. J Trace Elem Med Biol 2021; 64:126682. [PMID: 33249371 DOI: 10.1016/j.jtemb.2020.126682] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/16/2020] [Accepted: 11/06/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND We assessed whether blood cadmium levels were associated with incident lung cancer and could be used in the context of a screening program for early-stage lung cancer. MATERIAL AND METHODS We measured blood cadmium levels among 205 lung cancer patients and 205 matched controls. Cases and controls were matched for sex, age and smoking history (total pack-years, years since cessation for former smokers). RESULTS The odds ratio for those in the highest quartile of cadmium level (versus lowest) was four-fold (OR = 4.41, 95 % CI:2.01-9.67, p < 0.01). The association was present in former smokers (OR = 16.8, 95 % CI:3.96-71.2, p < 0.01), but not in current smokers (OR = 1.23, 95 % CI: 0.34-4.38) or in never smokers (OR not defined). Among former smokers, the association was present in both early- and late-stage lung cancer. CONCLUSION Blood cadmium levels may be a marker to help with the early detection of lung cancer among former smokers.
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Affiliation(s)
- Marcin R Lener
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Edyta Reszka
- Department of Molecular Genetics and Epigenetics, Nofer Institute of Occupational Medicine, ul.św. Teresy od Dzieciątka Jezus 8, 91-348 Łódź, Poland
| | - Wojciech Marciniak
- Read-Gene, Grzepnica, ul. Alabastrowa 8, 72-003 Dobra (Szczecińska), Poland
| | - Monika Lesicka
- Department of Molecular Genetics and Epigenetics, Nofer Institute of Occupational Medicine, ul.św. Teresy od Dzieciątka Jezus 8, 91-348 Łódź, Poland
| | - Piotr Baszuk
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Ewa Jabłońska
- Department of Molecular Genetics and Epigenetics, Nofer Institute of Occupational Medicine, ul.św. Teresy od Dzieciątka Jezus 8, 91-348 Łódź, Poland
| | - Katarzyna Białkowska
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | | | - Sandra Pietrzak
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Róża Derkacz
- Read-Gene, Grzepnica, ul. Alabastrowa 8, 72-003 Dobra (Szczecińska), Poland
| | - Tomasz Grodzki
- Department of Thoracic Surgery and Transplantation, Pomeranian Medical University in Szczecin, ul. A. Sokołowskiego 11, 70-891 Szczecin, Poland
| | - Janusz Wójcik
- Department of Thoracic Surgery and Transplantation, Pomeranian Medical University in Szczecin, ul. A. Sokołowskiego 11, 70-891 Szczecin, Poland
| | - Małgorzata Wojtyś
- Department of Thoracic Surgery and Transplantation, Pomeranian Medical University in Szczecin, ul. A. Sokołowskiego 11, 70-891 Szczecin, Poland
| | - Tadeusz Dębniak
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Cezary Cybulski
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland; Read-Gene, Grzepnica, ul. Alabastrowa 8, 72-003 Dobra (Szczecińska), Poland
| | - Jacek Gronwald
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland; Read-Gene, Grzepnica, ul. Alabastrowa 8, 72-003 Dobra (Szczecińska), Poland
| | - Bartosz Kubisa
- Department of Thoracic Surgery and Transplantation, Pomeranian Medical University in Szczecin, ul. A. Sokołowskiego 11, 70-891 Szczecin, Poland
| | - Jarosław Pieróg
- Department of Thoracic Surgery and Transplantation, Pomeranian Medical University in Szczecin, ul. A. Sokołowskiego 11, 70-891 Szczecin, Poland
| | - Piotr Waloszczyk
- Independent Laboratory of Pathology, Zdunomed, ul. Energetyków 2, 70-656 Szczecin, Poland
| | - Rodney J Scott
- Medical Genetics, Hunter Medical Research Institute, Priority Research Centre for Cancer Research, Innovation and Translation, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Pathology North, John Hunter Hospital, Cnr King and Auckland Streets, Newcastle NSW 2300 Australia
| | - Anna Jakubowska
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Steven A Narod
- Women's College Research Institute, Toronto, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Jan Lubiński
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University in Szczecin, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland; Read-Gene, Grzepnica, ul. Alabastrowa 8, 72-003 Dobra (Szczecińska), Poland.
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Integrative comparison of cadmium and iron oxide as yellow pigment in terms of cellular stress and genotoxicity in vitro and in vivo. Mol Cell Toxicol 2021. [DOI: 10.1007/s13273-020-00113-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Fernandes S, Nogueira V, Lourenço J, Mendo S, Pereira R. Inter-species bystander effect: Eisenia fetida and Enchytraeus albidus exposed to uranium and cadmium. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:122972. [PMID: 32526440 DOI: 10.1016/j.jhazmat.2020.122972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/14/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
The bystander effect is commonly defined as the observation of effects in nonirradiated cells and tissues when the later are in contact with irradiated cells/ tissues. More recently the occurrence of bystander effect between organisms of the same species has been also demonstrated. Nevertheless, there is limited knowledge about this effect between soil dwelling organisms from different taxonomic groups, as well as in response to stressors other than ionizing radiation. Moreover, data reporting this phenomenon for soil invertebrates are scarce. The results herein presented contribute for the understanding of the impacts of cadmium and uranium in the DNA integrity of two terrestrial oligochaetes species (Eisenia fetida and Enchytraeus albidus). The evaluation was based on the quantification of the effects in the DNA integrity of the coelomocytes using the alkaline comet assay technique. This work reports the existence of bystander signaling from terrestrial earthworms to enchytraeids and from enchytraeids to earthworms when the organisms were exposed to Cd. These results reinforce that the bystander effect seems to be related with the genotoxic activity of stressors, and not exclusive of radiotoxic contaminants. Further, the bystander effect occurs between different species and under real environmental conditions, even in complex matrices, as the soil.
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Affiliation(s)
- S Fernandes
- GreenUPorto - Sustainable Agrifood Production Research Center & Department of Biology, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal.
| | - V Nogueira
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
| | - J Lourenço
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - S Mendo
- Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - R Pereira
- GreenUPorto - Sustainable Agrifood Production Research Center & Department of Biology, Faculty of Science, University of Porto, Rua do Campo Alegre s/n, Porto, Portugal
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Guo H, Liu H, Jian Z, Cui H, Fang J, Zuo Z, Deng J, Li Y, Wang X, Zhao L, He R, Tang H. Immunotoxicity of nickel: Pathological and toxicological effects. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:111006. [PMID: 32684520 DOI: 10.1016/j.ecoenv.2020.111006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
Nickel (Ni) is a widely distributed metal in the environment and an important pollutant because of its many industrial applications. With increasing incidences of Ni contamination, Ni toxicity has become a global public health concern and recent evidence suggests that Ni adversely affects the immune system. Hence, this paper reviews the literature on immune-related effects of Ni exposure, the immunotoxicological effects of Ni, and the underlying mechanism of Ni immunotoxicity. The main focus was on the effect of Ni on the development of organs of immune system, lymphocyte subpopulations, cytokines, immunoglobulins, natural killer (NK) cells, and macrophages. Moreover, Ni toxicity also induces inflammation and several studies demonstrated that Ni could induce immunotoxicity. Excessive Ni exposure can inhibit the development of immune organs by excessively inducing apoptosis and inhibiting proliferation. Furthermore, Ni can decrease T and B lymphocytes, the specific mechanism of which requires further research. The effects of Ni on immunoglobulin A (IgA), IgG, and IgM remain unknown and while Ni inhibited IgA, IgG, and IgM levels in an animal experiment, the opposite result was found in research on humans. Ni inhibits the production of cytokines in non-inflammatory responses. Cytokine levels increased in Ni-induced inflammation responses, and Ni activates inflammation through toll like (TL)4-mediated nuclear factor-κB (NF-κB) and signal transduction cascades mitogen-activated protein kinase (MAPK) pathways. Ni has been indicated to inactivate NK cells and macrophages both in vitro and in vivo. Identifying the mechanisms underlying the Ni-induced immunotoxicity may help to explain the growing risk of infections and cancers in human populations that have been exposed to Ni for a long time. Such knowledge may also help to prevent and treat Ni-related carcinogenicity and toxicology.
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Affiliation(s)
- Hongrui Guo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Huan Liu
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Zhijie Jian
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Hengmin Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Agricultural Information Engineering of Sichuan Province, Sichuan Agriculture University, Yaan, Sichuan, 625014, China.
| | - Jing Fang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Zhicai Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Junliang Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Yinglun Li
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Xun Wang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Ling Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China; Key Laboratory of Animal Diseases and Environmental Hazards of Sichuan Province, Sichuan Agriculture University, Wenjiang, Chengdu, 611130, China
| | - Ran He
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
| | - Huaqiao Tang
- College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, Chengdu, 611130, China
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Zhu Y, Costa M. Metals and molecular carcinogenesis. Carcinogenesis 2020; 41:1161-1172. [PMID: 32674145 PMCID: PMC7513952 DOI: 10.1093/carcin/bgaa076] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/19/2020] [Accepted: 07/13/2020] [Indexed: 12/11/2022] Open
Abstract
Many metals are essential for living organisms, but at higher doses they may be toxic and carcinogenic. Metal exposure occurs mainly in occupational settings and environmental contaminations in drinking water, air pollution and foods, which can result in serious health problems such as cancer. Arsenic (As), beryllium (Be), cadmium (Cd), chromium (Cr) and nickel (Ni) are classified as Group 1 carcinogens by the International Agency for Research on Cancer. This review provides a comprehensive summary of current concepts of the molecular mechanisms of metal-induced carcinogenesis and focusing on a variety of pathways, including genotoxicity, mutagenesis, oxidative stress, epigenetic modifications such as DNA methylation, histone post-translational modification and alteration in microRNA regulation, competition with essential metal ions and cancer-related signaling pathways. This review takes a broader perspective and aims to assist in guiding future research with respect to the prevention and therapy of metal exposure in human diseases including cancer.
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Affiliation(s)
- Yusha Zhu
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Max Costa
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
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Mechanisms of Co, Ni, and Mn toxicity: From exposure and homeostasis to their interactions with and impact on lipids and biomembranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183250. [DOI: 10.1016/j.bbamem.2020.183250] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/12/2020] [Accepted: 02/24/2020] [Indexed: 01/21/2023]
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A "Population Dynamics" Perspective on the Delayed Life-History Effects of Environmental Contaminations: An Illustration with a Preliminary Study of Cadmium Transgenerational Effects over Three Generations in the Crustacean Gammarus. Int J Mol Sci 2020; 21:ijms21134704. [PMID: 32630258 PMCID: PMC7370439 DOI: 10.3390/ijms21134704] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/27/2020] [Accepted: 06/30/2020] [Indexed: 11/17/2022] Open
Abstract
We explore the delayed consequences of parental exposure to environmentally relevant cadmium concentrations on the life-history traits throughout generations of the freshwater crustacean Gammarus fossarum. We report the preliminary results obtained during a challenging one-year laboratory experiment in this environmental species and propose the use of population modeling to interpret the changes in offspring life-history traits regarding their potential demographic impacts. The main outcome of this first long-term transgenerational assay is that the exposure of spawners during a single gametogenesis cycle (3 weeks) could result in severe cascading effects on the life-history traits along three unexposed offspring generations (one year). Indeed, we observed a decrease in F1 reproductive success, an early onset of F2 offspring puberty with reduced investment in egg yolk reserves, and finally a decrease in the growth rate of F3 juveniles. However, the analysis of these major transgenerational effects by means of a Lefkovitch matrix population model revealed only weak demographic impacts. Population compensatory processes mitigating the demographic consequences of parental exposure seem to drive the modification of life-history traits in offspring generations. This exploratory study sheds light on the role of population mechanisms involved in the demographic regulation of the delayed effects of environmental toxicity in wild populations.
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Samelko L, Petfield J, McAllister K, Hsu J, Hawkinson M, Jacobs JJ, Hallab NJ. Do Battlefield Injury-acquired Indwelling Metal Fragments Induce Metal Immunogenicity? Clin Orthop Relat Res 2020; 478:752-766. [PMID: 32229747 PMCID: PMC7282599 DOI: 10.1097/corr.0000000000000953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 08/13/2019] [Indexed: 01/31/2023]
Abstract
BACKGROUND A battlefield-related injury results in increased local and systemic innate immune inflammatory responses, resulting in wound-specific complications and an increased incidence of osteoarthritis. However, little is known about whether severe injuries affect long-term systemic homeostasis, for example, immune function. Moreover, it also remains unknown whether battlefield-acquired metal fragments retained over the long term result in residual systemic effects such as altered immune reactivity to metals. QUESTIONS/PURPOSES Does a retained metal fragment from a battlefield injury contribute to increased (1) adaptive metal-specific immune responses, (2) systemically elevated metal ion serum levels, and (3) serum immunoglobulin levels compared with combat injuries that did not result in a retained metal fragment? METHODS In this pilot study, we analyzed metal-immunogenicity in injured military personnel and noninjured control participants using lymphocyte transformation testing (LTT, lymphocyte proliferation responses to cobalt, chromium and nickel challenge at 0.001, 0.01 and 0.1-mM concentrations in triplicate for each participant), serum metal ion analysis (ICP-mass spectroscopy), and serum immunoglobulin analysis (IgE, IgG, IgA, and IgM ). Military personnel with a battlefield-sustained injury self-recruited without any exclusion for sex, age, degree of injury. Those with battlefield injury resulting in retained metal fragments (INJ-FRAG, n = 20 male, mean time since injury ± SD was 12 ± 10 years) were compared with those with a battlefield injury but without retained metal fragments (INJ-NO-FRAG, n = 12 male, mean time since injury ± SD was 13 ± 12 years). A control group comprised of male noninjured participants was used to compare measured immunogenicity metrics (n = 11, males were selected to match battlefield injury group demographics). RESULTS Military participants with sustained metal fragments had increased levels of metal-induced lymphocyte responses. The lymphocyte stimulation index among military participants with metal fragments was higher than in those with nonretained metal fragments (stimulation index = 4.2 ± 6.0 versus stimulation index = 2.1 ± 1.2 (mean difference 2.1 ± 1.4 [95% confidence interval 5.1 to 0.8]; p = 0.07) and an average stimulation index = 2 ± 1 in noninjured controls. Four of 20 participants injured with retained fragments had a lymphocyte proliferation index greater than 2 to cobalt compared with 0 in the group without a retained metal fragment or 0 in the control participants. However, with the numbers available, military personnel with retained metal fragments did not have higher serum metal ion levels than military participants without retained metal fragment-related injuries or control participants. Military personnel with retained metal fragments had lower serum immunoglobulin levels (IgG, IgA, and IgM) than military personnel without retained metal fragments and noninjured controls, except for IgE. Individuals who were metal-reactive positive (that is, a stimulation index > 2) with retained metal fragments had higher median IgE serum levels than participants who metal-reactive with nonmetal injuries (1198 ± 383 IU/mL versus 171 ± 67 IU/mL, mean difference 1027 ± 477 IU/mL [95% CI 2029 to 25]; p = 0.02). CONCLUSIONS We found that males with retained metal fragments after a battlefield-related injury had altered adaptive immune responses compared with battlefield-injured military personnel without indwelling metal fragments. Military participants with a retained metal fragment had an increased proportion of group members and increased average lymphocyte reactivity to common implant metals such as nickel and cobalt. Further studies are needed to determine a causal association between exposure to amounts of retained metal fragments, type of injury, personnel demographics and general immune function/reactivity that may affect personal health or future metal implant performance. LEVEL OF EVIDENCE Level IV, therapeutic study.
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Affiliation(s)
- Lauryn Samelko
- L. Samelko, K. McAllister, J. J. Jacobs, Rush University Medical Center, Chicago, IL, USA
| | - Joseph Petfield
- J. Petfield, M. Hawkinson, San Antonio Medical Center, San Antonio, TX, USA
| | - Kyron McAllister
- L. Samelko, K. McAllister, J. J. Jacobs, Rush University Medical Center, Chicago, IL, USA
| | - Joseph Hsu
- J. Hsu, Carolinas Medical Center, Charlotte, NC, USA
| | - Michael Hawkinson
- J. Petfield, M. Hawkinson, San Antonio Medical Center, San Antonio, TX, USA
| | - Joshua J Jacobs
- L. Samelko, K. McAllister, J. J. Jacobs, Rush University Medical Center, Chicago, IL, USA
| | - Nadim J Hallab
- N. J. Hallab, Rush University Medical Center, Chicago, IL, USA
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Sinkakarimi MH, Solgi E, Hosseinzadeh Colagar A. Subcellular partitioning of cadmium and lead in Eisenia fetida and their effects to sperm count, morphology and apoptosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 187:109827. [PMID: 31655413 DOI: 10.1016/j.ecoenv.2019.109827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Earthworms and their biomarkers are considered good indicators for assessing the effects of toxic chemicals. Therefore, in this study, we exposed Eisenia fetida to lethal and sub-lethal concentrations of Cd and Pb nitrate in artificial soil for 14 and 28 days to evaluate the impact on subcellular partitioning, lethal toxicity (LC50), growth, sperm count, morphology and apoptosis (using TUNEL assay). The soluble internal pools of both metals were good predictors of the responses of biomarkers. We found sperm deformation, TUNEL positive sperms and weight loss positively and sperm count negatively correlated with the concentrations of Cd and Pb in the total internal and cytosolic fraction (p < 0.01) and to a lesser extent with Pb concentrations in the granular fraction (p < 0.05). Fourteen days LC50 for Cd and Pb were 2169 ± 322 and 6387 ± 904 μg/g, respectively. Cadmium and Pb caused a significant depression in sperm count after 14 (Cd: up to 46.9%; Pb: up to 36.24%) and 28 (Cd: up to 72.47%; Pb: up to 43.12%) days of exposure relative to the control (p < 0.05). Cadmium induced higher abnormality in sperm heads than Pb. For both metals, TUNEL positive sperms significantly increased after 14 (Cd: up to 14.17%; Pb: up to 16.33%) and 28 (Cd: up to 16.33%; Pb: up to 11.67%) days of exposure compared with the control (p < 0.05). The findings of this study, illustrate the importance of considering sperm parameters as a rapid, easy and sensitive biomarker for the evaluation of metal toxicity.
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Affiliation(s)
- Mohammad Hosein Sinkakarimi
- Department of Environment, Faculty of Natural Resource and Environment, Malayer University, 95863-65719, Malayer, Iran
| | - Eisa Solgi
- Department of Environment, Faculty of Natural Resource and Environment, Malayer University, 95863-65719, Malayer, Iran
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20
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Hallab NJ, Jacobs JJ. Orthopedic Applications. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00070-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Nickel Carcinogenesis Mechanism: DNA Damage. Int J Mol Sci 2019; 20:ijms20194690. [PMID: 31546657 PMCID: PMC6802009 DOI: 10.3390/ijms20194690] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/15/2019] [Accepted: 09/20/2019] [Indexed: 12/14/2022] Open
Abstract
Nickel (Ni) is known to be a major carcinogenic heavy metal. Occupational and environmental exposure to Ni has been implicated in human lung and nasal cancers. Currently, the molecular mechanisms of Ni carcinogenicity remain unclear, but studies have shown that Ni-caused DNA damage is an important carcinogenic mechanism. Therefore, we conducted a literature search of DNA damage associated with Ni exposure and summarized known Ni-caused DNA damage effects. In vitro and vivo studies demonstrated that Ni can induce DNA damage through direct DNA binding and reactive oxygen species (ROS) stimulation. Ni can also repress the DNA damage repair systems, including direct reversal, nucleotide repair (NER), base excision repair (BER), mismatch repair (MMR), homologous-recombination repair (HR), and nonhomologous end-joining (NHEJ) repair pathways. The repression of DNA repair is through direct enzyme inhibition and the downregulation of DNA repair molecule expression. Up to now, the exact mechanisms of DNA damage caused by Ni and Ni compounds remain unclear. Revealing the mechanisms of DNA damage from Ni exposure may contribute to the development of preventive strategies in Ni carcinogenicity.
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Kocadal K, Alkas FB, Battal D, Saygi S. Cellular pathologies and genotoxic effects arising secondary to heavy metal exposure: A review. Hum Exp Toxicol 2019; 39:3-13. [DOI: 10.1177/0960327119874439] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Environmental pollution is significant and oftentimes hazardous in the areas, where mining, foundries and smelters and other metallurgical operations are located. Systematic research on the chronic effects of metals started during the past century; nevertheless, it is evident that even today, there are large gaps in knowledge regarding the assessment of the health effects caused by environmental and occupational exposures to these metals. Heavy metals induce the production of reactive oxygen species (ROS) causing oxidative stress, make several repair-inhibiting cellular changes and alter the DNA repair processes. They favour the ‘false’ repairing of double-strand breaks (DSBs), propagate DNA mutations and induce carcinogenesis. A detailed literature search was performed using the MedLine/PubMed database. Depending on the mechanism of action, arsenicals can act as genotoxins, non-genotoxic agents and carcinogens. Cadmium can bind to proteins, reduce DNA repair, activate protein degradation, up-regulate cytokines and proto-oncogenes (c-fos, c-jun and c-myc), induce the expression of metallothionein, haeme-oxygenases, glutathione transferases, heat-shock proteins, acute-phase reactants and DNA polymerase β at lower concentrations. Inorganic mercury damages oxidative phosphorylation and electron transport pathways at the ubiquinone–cytochrome b5 locus and thus induces ROS production. Abandoned mining areas generate environmentally persistent waste. These specific sites urgently require maximally efficient and cheap remediation. This bears the need for methodologies employing green and sustainable remediation. Phytoremediation is important in that it is a prevalent in situ remediation technique. Its advantages include the use of solar energy, cost-effectiveness, easy operation, reduction in secondary contaminants, the use of biomass for biofuel production and low-cost adsorbents.
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Affiliation(s)
- K Kocadal
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - FB Alkas
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - D Battal
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
- Department of Toxicology, Faculty of Pharmacy, Mersin University, Mersin, Turkey
| | - S Saygi
- Department of Toxicology, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
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Finlayson KA, Leusch FDL, van de Merwe JP. Primary green turtle (Chelonia mydas) skin fibroblasts as an in vitro model for assessing genotoxicity and oxidative stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 207:13-18. [PMID: 30502692 DOI: 10.1016/j.aquatox.2018.11.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/26/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
Little is known about the effects of contaminants that accumulate in sea turtles. When in vivo exposure studies have ethical and logistical barriers, as is the case with sea turtles, in vitro tools can provide important information on the effects of contaminants. Several in vitro studies have assessed cytotoxicity of contaminants to sea turtles cells, however to gain a more refined mechanistic understanding of the effects of contaminants, sub-lethal effects also require investigation. Considering the complex mixture of contaminants that sea turtles are potentially exposed to, high throughput testing methods are necessary so that a large number of contaminants (and mixtures) can be rapidly tested. This study examined oxidative stress (reactive oxygen species production) and genotoxicity (micronucleus formation) in primary green turtle skin fibroblasts in response to 16 organic and inorganic contaminants found in coastal environments. Significant induction of oxidative stress was found with Cu, Co, Cr, and Hg. Significant effects on genotoxicity were found with Cu, Co, Cr, Hg, Pb and metolachlor. Effect concentrations from the bioassays were used in a simple risk assessment of turtles worldwide using accumulation values from the literature to identify populations at risk. Cu, Co, Cr and Hg were identified as posing the biggest threat to sea turtles. This study demonstrated the validity of using primary turtle cell cultures in the assessment of risk associated with a large number of contaminants using a high-throughput toxicity testing format.
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Affiliation(s)
- Kimberly A Finlayson
- Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Australia.
| | - Frederic D L Leusch
- Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Australia
| | - Jason P van de Merwe
- Australian Rivers Institute, School of Environment and Science, Griffith University, Gold Coast, Australia
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Tabelin CB, Igarashi T, Villacorte-Tabelin M, Park I, Opiso EM, Ito M, Hiroyoshi N. Arsenic, selenium, boron, lead, cadmium, copper, and zinc in naturally contaminated rocks: A review of their sources, modes of enrichment, mechanisms of release, and mitigation strategies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:1522-1553. [PMID: 30248873 DOI: 10.1016/j.scitotenv.2018.07.103] [Citation(s) in RCA: 172] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 07/01/2018] [Accepted: 07/05/2018] [Indexed: 05/28/2023]
Abstract
Massive and ambitious underground space development projects are being undertaken by many countries around the world to decongest megacities, improve the urban landscapes, upgrade outdated transportation networks, and expand modern railway and road systems. A number of these projects, however, reported that substantial portions of the excavated debris are oftentimes naturally contaminated with hazardous elements, which are readily released in substantial amounts once exposed to the environment. These contaminated excavation debris/spoils/mucks, loosely referred to as "naturally contaminated rocks", contain various hazardous and toxic inorganic elements like arsenic (As), selenium (Se), boron (B), and heavy metals like lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn). If left untreated, these naturally contaminated rocks could pose very serious problems not only to the surrounding ecosystem but also to people living around the construction and disposal sites. Several incidents of soil and ground/surface water contamination, for example, have been documented due to the false assumption that excavated materials are non-hazardous because they only contain background levels of environmentally regulated elements. Naturally contaminated rocks are hazardous wastes, but they still remain largely unregulated. In fact, standard leaching tests for their evaluation and classification are not yet established. In this review, we summarized all available studies in the literature about the factors and processes crucial in the enrichment, release, and migration of the most commonly encountered hazardous and toxic elements in naturally contaminated geological materials. Although our focus is on naturally contaminated rocks, analogue systems like contaminated soils, sediments, and other hazardous wastes that have been more widely studied will also be discussed. Classification schemes and leaching tests to properly identify and regulate excavated rocks that may potentially pose environmental problems will be examined. Finally, management and mitigation strategies to limit the negative effects of these hazardous wastes are introduced.
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Affiliation(s)
- Carlito Baltazar Tabelin
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
| | - Toshifumi Igarashi
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Mylah Villacorte-Tabelin
- Department of Biological Sciences, College of Science and Mathematics, Mindanao State University - Iligan Institute of Technology, Iligan City 9200, Philippines
| | - Ilhwan Park
- Division of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Einstine M Opiso
- Geoenvironmental Engineering Group, Central Mindanao University, Maramag 8710, Bukidnon, Philippines
| | - Mayumi Ito
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Naoki Hiroyoshi
- Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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25
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Ince S, Kucukkurt I, Acaroz U, Arslan-Acaroz D, Varol N. Boron ameliorates arsenic-induced DNA damage, proinflammatory cytokine gene expressions, oxidant/antioxidant status, and biochemical parameters in rats. J Biochem Mol Toxicol 2018; 33:e22252. [PMID: 30368975 DOI: 10.1002/jbt.22252] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/24/2018] [Accepted: 10/01/2018] [Indexed: 01/27/2023]
Abstract
Arsenic, an element found in nature, causes hazardous effects on living organisms. Meanwhile, natural compounds exhibit protective effects against hazardous substances. This study evaluated the effects of boron against arsenic-induced genotoxicity and altered biochemical parameters in rats. Thirty-five male Wistar albino rats were equally divided into five groups, and the experimental period lasted 30 days. One group was used as the control, and another group was treated with 100 mg/L arsenic in drinking water. The other groups were orally treated with 5, 10, and 20 mg/kg boron plus arsenic (100 mg/L via drinking water). Arsenic caused changes in biochemical parameters, total oxidant/antioxidant status, and DNA damage in mononuclear leukocytes. Moreover, it increased IFN-γ, IL-1β, TNF-α, and NFκB mRNA expression levels in rat tissue. However, boron treatment improved arsenic-induced alterations in biochemical parameters and increases in DNA damage and proinflammatory cytokine gene expressions.
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Affiliation(s)
- Sinan Ince
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Ismail Kucukkurt
- Department of Biochemistry, Faculty of Veterinary Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Ulas Acaroz
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Damla Arslan-Acaroz
- Department of Laboratory and Veterinary Health, Bayat Vocational School, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Nuray Varol
- Department of Medical Genetics, Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
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26
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Health Risk Assessment of Heavy Metals in Vegetables in an Endemic Esophageal Cancer Region in Iran. HEALTH SCOPE 2018. [DOI: 10.5812/jhealthscope.12340] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Intrinsic toxicity of stable nanosized titanium dioxide using polyacrylate in human keratinocytes. Mol Cell Toxicol 2018. [DOI: 10.1007/s13273-018-0030-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Alimba C, Aladeyelu A, Nwabisi I, Bakare A. Micronucleus cytome assay in the differential assessment of cytotoxicity and genotoxicity of cadmium and lead in Amietophrynus regularis. EXCLI JOURNAL 2018; 17:89-101. [PMID: 29383021 PMCID: PMC5780627 DOI: 10.17179/excli2017-887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 12/12/2017] [Indexed: 11/17/2022]
Abstract
Amphibians are increasingly being used as bio-indicator of contamination in ecosystems due to their sensitivity to xenobiotics in the environment. Cadmium and lead compounds, ubiquitous mutagens and carcinogens, are capable of eliciting genome instability in adult toads which may enhance amphibian decline. Micronucleus cytome (MN-cyt) assay, a comprehensive cytogenetic test for the assessment of genome instability induced by xenobiotics in organisms, was utilized in the differential cytogenotoxic evaluation of Cd and Pb in adult Amietophrynus regularis. A. regularis was exposed to six concentrations (8 - 512 mg/L) of the metal solutions to determine 96 h acute toxicity. Four toads per group were exposed to five sub-lethal concentrations (5 - 75 %) of the 96 h LC50 of the metals for 14 days. At post exposure, bone marrow and peripheral erythrocytes were collected for MN-cyt analysis. The metals induced differential concentration and time-dependent increase in mortality with 96 h LC50 of 36.36 mg/L (Cd) and 112.06 mg/L (Pb). No observable effective concentrations (NOEC); Cd=8 and Pb=32 (mg/L) and Lowest observable effective concentrations (LOEC); Cd=16 and Pb=64 (mg/L) were recorded for the metals. Derived toxicity factor (TF) showed that Cd was 3.08 times more toxic to the toads than Pb. The metal solutions induced significant (p<0.05) increase in frequencies of MN, binucleated, nuclear bud, notch, lobe, vacuolated erythrocytes, apoptosis and necrosis compared to the negative control. Cd elicited 1.42 and 3.26 folds increase in MN and NAs respectively, than Pb. MN-cyt assay is a suitable cytogenetic tool for assessing genome instability in A. regularis. Increased genetic instability induced by Cd and Pb may be associated with genetic related syndromes; neoplasms, reproductive dysfunctions and mortality. This suggests threat to amphibian health and may enhance population decline.
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Affiliation(s)
- C.G. Alimba
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Nigeria
| | - A.M. Aladeyelu
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Nigeria
| | - I.A. Nwabisi
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Nigeria
| | - A.A. Bakare
- Cell Biology and Genetics Unit, Department of Zoology, University of Ibadan, Nigeria
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The brains of bats foraging at wastewater treatment works accumulate arsenic, and have low non-enzymatic antioxidant capacities. Neurotoxicology 2017; 69:232-241. [PMID: 29248512 DOI: 10.1016/j.neuro.2017.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 12/04/2017] [Accepted: 12/11/2017] [Indexed: 01/19/2023]
Abstract
Increasing rates of urbanisation cause ubiquitous infrastructures that remove anthropogenic contaminants - particularly Wastewater Treatment Works (WWTWs) - to become stressed, and hence pollute surrounding water systems. Neoromicia nana bats are suitable models to study the effects of pollution in these environments because they exploit abundant pollutant-tolerant chironomid midges that breed at WWTWs, and consequently accumulate metals such as iron, copper and zinc in their livers and kidneys. If these metals persist in their circulatory systems, and cross the blood brain barrier (BBB) they can have adverse effects on critical functions such as flight and echolocation. The aim of this study was to investigate the potential neurological effects on N. nana foraging at WWTWs versus bats at reference sites in Durban, South Africa. Our objectives were to 1) compare trace metal levels in brain and hair samples (as a proxy for circulating metals) between N. nana foraging at WWTWs and reference sites to determine if excess metals pass through the BBB via the circulatory system; and 2) compare biomarkers of neuron function (acetylcholinesterase activity), protection (antioxidant capacity), DNA integrity (DNA fragmentation), lipid integrity (lipid peroxidation) and cell viability (caspase-3 activity) between N. nana foraging at WWTW and reference sites. We found a significantly higher concentration of arsenic in hair (p < 0.05) and brain tissue (p < 0.1) of WWTW bats compared to bats at reference sites. By contrast, acetylcholinesterase activity did not differ in bats among sites and there was no evidence of significant differences in lipid peroxidation, compromised DNA integrity or apoptosis in the brains between WWTW bats and reference site bats. However, total antioxidant capacity was significantly lower in brains of WWTW bats than bats at reference sites suggesting that antioxidant protection may be compromised. Long-term exposure to environmental pollutants at WWTWs may therefore affect cellular processes and protection mechanisms in brains of N. nana bats. It may also affect other mechanisms and functions in the brain such as mitochondrial efficiency and other neurotransmitters but that remains to be tested.
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Akpiri RU, Konya RS, Hodges NJ. Development of cultures of the marine sponge Hymeniacidon perleve for genotoxicity assessment using the alkaline comet assay. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2017; 36:3314-3323. [PMID: 28691780 DOI: 10.1002/etc.3907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/17/2017] [Accepted: 07/05/2017] [Indexed: 06/07/2023]
Abstract
Sponges are a potential alternative model species to bivalves in pollution biomonitoring and environmental risk assessment in the aquatic ecosystem. In the present study, a novel in vivo exposure sponge culture model was developed from field-collected and cryopreserved sponge (Hymeniacidon perleve) cells to investigate the genotoxic effects of environmentally relevant metals in the laboratory. Sponge cell aggregates were cultured and exposed to noncytotoxic concentrations (0-0.4 mg/L) of cadmium chloride, nickel chloride, and sodium dichromate as quantified by the reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and DNA-strand breaks assessed by the comet assay. Reactive oxygen species (ROS) formation was quantified by oxidation of 2',7'-dichlorofluorescin diacetate in sponge cell aggregates exposed to the same concentrations of Cd, Cr, and Ni. There was a statistically significant (p < 0.05) concentration-dependent increase in the level of DNA-strand breaks and ROS formation in all of the metals investigated. To the best of our knowledge, we have utilized for the first time the alkaline comet assay to detect DNA-strand breaks in marine sponge cells and demonstrated that exposure to noncytotoxic concentrations of Cd, Cr, and Ni for 12 h results in a concentration-dependent increase in DNA damage and levels of ROS production. In conclusion, we have developed a novel in vivo model based on culture of cryopreserved sponge cells that is compatible with the alkaline comet assay. Genotoxicity in marine sponges measured by the comet assay technique may be a useful tool for biomonitoring research and risk assessment in aquatic ecosystems. Environ Toxicol Chem 2017;36:3314-3323. © 2017 SETAC.
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Affiliation(s)
- Rachael U Akpiri
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Roseline S Konya
- Department of Animal and Environmental Biology, Faculty of Biological and Chemical Sciences, College of Natural and Applied Sciences, University of Port Harcourt, Rivers State, Nigeria
| | - Nikolas J Hodges
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
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31
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Walker AR, Cisneros GA. Computational Simulations of DNA Polymerases: Detailed Insights on Structure/Function/Mechanism from Native Proteins to Cancer Variants. Chem Res Toxicol 2017; 30:1922-1935. [PMID: 28877429 PMCID: PMC5696005 DOI: 10.1021/acs.chemrestox.7b00161] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
Genetic information is vital in the
cell cycle of DNA-based organisms.
DNA polymerases (DNA Pols) are crucial players in transactions dealing
with these processes. Therefore, the detailed understanding of the
structure, function, and mechanism of these proteins has been the
focus of significant effort. Computational simulations have been applied
to investigate various facets of DNA polymerase structure and function.
These simulations have provided significant insights over the years.
This perspective presents the results of various computational studies
that have been employed to research different aspects of DNA polymerases
including detailed reaction mechanism investigation, mutagenicity
of different metal cations, possible factors for fidelity synthesis,
and discovery/functional characterization of cancer-related mutations
on DNA polymerases.
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Affiliation(s)
- Alice R Walker
- Department of Chemistry, University of North Texas , 1155 Union Circle, Denton, Texas 76203, United States
| | - G Andrés Cisneros
- Department of Chemistry, University of North Texas , 1155 Union Circle, Denton, Texas 76203, United States
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In-vitro cytotoxicity and cellular uptake studies of luminescent functionalized core-shell nanospheres. Saudi J Biol Sci 2017; 24:1392-1403. [PMID: 28855837 PMCID: PMC5562484 DOI: 10.1016/j.sjbs.2016.08.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 04/18/2016] [Accepted: 08/30/2016] [Indexed: 02/04/2023] Open
Abstract
Monodispersed luminescent functionalized core-shell nanospheres (LFCSNs) were successfully synthesized and investigated for their cyto-toxic effect on human liver hepatocellular carcinoma cell line (HepG2 cells) by adopting MTT, DNA Ladder, TUNEL assay and qPCR based gene expressions through mRNA quantifications. The TUNEL and DNA ladder assays suggested an insignificant apoptosis in HepG2 cells due to the LFCSNs treatment. Further, the qPCR results also show that the mRNA expressions of cell cycle checkpoint gene p53 and apoptosis related gene (caspase-9) was up-regulated, while the antiapoptotic gene BCl-2 and apoptosis related genes FADD and CAS-3 (apoptosis effecter gene) were down-regulated in the LFCSNs treated cells. The nanospheres that were loaded into the cells confirm their intracellular uptake by light and fluorescent spectro-photometry and microscopy imaging analysis. The loaded nanospheres demonstrate an absolute resistance to photo-bleaching, which were applied for dynamic imaging to real-time tracking in-vitro cell migratory activity for continuous 24 and 48 h durations using a time-lapsed fluorescent microscope. These properties of LFCSNs could therefore promote applications in the area of fluorescent protein biolabeling and drug-delivery.
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33
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Taghizadeh SF, Davarynejad G, Asili J, Nemati SH, Rezaee R, Goumenou M, Tsatsakis AM, Karimi G. Health risk assessment of heavy metals via dietary intake of five pistachio (Pistacia vera L.) cultivars collected from different geographical sites of Iran. Food Chem Toxicol 2017. [PMID: 28647516 DOI: 10.1016/j.fct.2017.06.035] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pistachio is an important horticultural product and Iran is considered as a main pistachio producing country. Assessment of heavy metals in this export fruit is crucial for protecting public health against toxic heavy metals. The concentration of selected heavy metals in soil, water and five pistachio cultivars from four geographical regions of Iran were measured. Although none of the elements were detected in water irrigation, infield metal content in the soil had good correlation with that of pistachio. The highest amounts of Al, As, Co, Ni and Se were reported in samples collected from Sarakhs, Iran. Considering both cultivar and region effects on selected heavy metals concentration, Kaleghoochi cultivar from Sarakhs site showed the highest amount of Al, As, Ni and Se. The maximum concentration of Hg was found in Akbari cultivar collected from Damghan. In the Akbari and the Ahmad aghaei cultivars collected from Sarakhs and Damghan cultivation zones, respectively, the highest amount of Co were observed. Based on our results, the HI value for the consumers of Iranian pistachio was 0.066. It seems that the levels of heavy metals in these pistachio samples pose no risk to consumers.
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Affiliation(s)
- Seyedeh Faezeh Taghizadeh
- Department of Horticulture and Landscape Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Gholamhossein Davarynejad
- Department of Horticulture and Landscape Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Javad Asili
- Department of Pharmacognosy, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Hossein Nemati
- Department of Horticulture and Landscape Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ramin Rezaee
- Clinical Research Unit, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Aristides M Tsatsakis
- Center of Toxicology Science & Research, Medical School, University of Crete, Heraklion, Crete, Greece
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Faculty of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Nurul AH, Shamsul BMT, Noor Hassim I. Assessment of dust exposure in a steel plant in the eastern coast of peninsular Malaysia. Work 2017; 55:655-662. [PMID: 27792033 DOI: 10.3233/wor-162433] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Steel manufacturing produces dust, fumes, and pollutant gases that may give adverse health effects to the respiratory function of workers. Improper occupational hygiene practice in the workplace will affect both workers wellbeing and productivity. OBJECTIVE To assess the level of particulate matter [(PM2.5, PM10, and Total Particulate Matter (TPM)], and trace metal dust concentrations in different sections of a steel plant and compare with the occupational exposure values. METHODS The work environmental parameters of the particulate matters were evaluated using Indoor Air Quality, while metal dust concentrations were measured using portable personal air sampler. A total of 184 personal samples were randomly collected from workers in three major sections; steel making plant, direct reduced plant, and support group. Trace metal dust concentrations were subjected to wet mineral acid mixture digestion and analysed by atomic absorption spectrophotometer (AAS). RESULTS The overall average PM2.5 concentration observed was varied according to the section: steel making plant was 0.18 mg/m3, direct reduced iron plant was 0.05 mg/m3, and support plant was 0.05 mg/m3. Average PM 10 concentration in steel making shop (SMS) plant, direct reduced (DR) plant, and support plant were 0.70 mg/m3, 0.84 mg/m3, and 0.58 mg/m3, respectively. The average TWA8 of trace metal dusts (cobalt and chromium) in all the sections exceeded 1 to 3 times the ACGIH prescribed values, OSHA PELs, NIOSH RELs as well as USECHH OSHA, whereas TWA8 concentration of nickel for each section did not exceed the occupational exposure values. CONCLUSIONS The average PM2.5, PM10 and TPM did not exceed the prescribed values, while average trace metal dust concentration TWA8 for cobalt and chromium in all plants exceeded occupational exposure prescribed values. However, the nickel found did not exceed the prescribed values in all the plants except for NIOSH RELs.
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Affiliation(s)
- Ainun Hamzah Nurul
- Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.,Environmental and Occupational Health Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Bahri Mohd Tamrin Shamsul
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Serdang, Selangor, Malaysia
| | - Ismail Noor Hassim
- Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Vasanthi LA, Revathi P, Babu Rajendran R, Munuswamy N. Detection of metal induced cytopathological alterations and DNA damage in the gills and hepatopancreas of green mussel Perna viridis from Ennore Estuary, Chennai, India. MARINE POLLUTION BULLETIN 2017; 117:41-49. [PMID: 28132732 DOI: 10.1016/j.marpolbul.2017.01.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 09/27/2016] [Accepted: 01/22/2017] [Indexed: 06/06/2023]
Abstract
This study report the impact of heavy metals on cytopathology and DNA damage in the gills and hepatopancreas of Perna viridis collected from Ennore estuary and the Kovalam coastal waters. Principal Component Analysis (PCA) showed significant differences among all variables at the scale of plots. The ultrastructural alterations such as lack of microvilli, distorted mitochondria, electron dense particles and the presence of large mucous droplets were common in the gill and hepatopancreatic cells of mussels from Ennore estuary. However, the gill and hepatopancreatic cells of P. viridis from Kovalam revealed normal compartmentalization of cells. The percentage of tail DNA in the mussels from Ennore estuary was recorded as 12.44 and 10.14% in the gills and hepatopancreas respectively. Overall, it has been demonstrated that the Comet and cytopathological assays are useful biomarkers to assess the level of pollution and it provide reliable information on ecotoxicology and genotoxicology of coastal waters.
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Affiliation(s)
- Lourduraj A Vasanthi
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India.
| | - Peranandam Revathi
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Ramaswamy Babu Rajendran
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Natesan Munuswamy
- Department of Zoology, University of Madras, Guindy Campus, Chennai 600 025, Tamilnadu, India
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36
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Staruch R, Griffin MF, Butler P. Nanoscale Surface Modifications of Orthopaedic Implants: State of the Art and Perspectives. Open Orthop J 2016; 10:920-938. [PMID: 28217214 PMCID: PMC5299555 DOI: 10.2174/1874325001610010920] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 11/10/2015] [Accepted: 05/31/2016] [Indexed: 01/18/2023] Open
Abstract
Background: Orthopaedic implants such as the total hip or total knee replacement are examples of surgical interventions with postoperative success rates of over 90% at 10 years. Implant failure is associated with wear particles and pain that requires surgical revision. Improving the implant - bone surface interface is a key area for biomaterial research for future clinical applications. Current implants utilise mechanical, chemical or physical methods for surface modification. Methods: A review of all literature concerning the nanoscale surface modification of orthopaedic implant technology was conducted. Results: The techniques and fabrication methods of nanoscale surface modifications are discussed in detail, including benefits and potential pitfalls. Future directions for nanoscale surface technology are explored. Conclusion: Future understanding of the role of mechanical cues and protein adsorption will enable greater flexibility in surface control. The aim of this review is to investigate and summarise the current concepts and future directions for controlling the implant nanosurface to improve interactions.
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Affiliation(s)
- Rmt Staruch
- Department of Surgery & Interventional Science, University College London, London, England
| | - M F Griffin
- Department of Surgery & Interventional Science, University College London, London, England
| | - Pem Butler
- Department of Surgery & Interventional Science, University College London, London, England; University College London & The Royal Free Hospital, Pond Street, London, England
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37
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Chen PW, Liu ZS, Wun MJ, Kuo TC. Cellular Mutagenicity and Heavy Metal Concentrations of Leachates Extracted from the Fly and Bottom Ash Derived from Municipal Solid Waste Incineration. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13111078. [PMID: 27827867 PMCID: PMC5129288 DOI: 10.3390/ijerph13111078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 10/14/2016] [Accepted: 10/31/2016] [Indexed: 11/16/2022]
Abstract
Two incinerators in Taiwan have recently attempted to reuse the fly and bottom ash that they produce, but the mutagenicity of these types of ash has not yet been assessed. Therefore, we evaluated the mutagenicity of the ash with the Ames mutagenicity assay using the TA98, TA100, and TA1535 bacterial strains. We obtained three leachates from three leachants of varying pH values using the toxicity characteristic leaching procedure test recommended by the Taiwan Environmental Protection Agency (Taiwan EPA). We then performed the Ames assay on the harvested leachates. To evaluate the possible relationship between the presence of heavy metals and mutagenicity, the concentrations of five heavy metals (Cd, Cr, Cu, Pb, and Zn) in the leachates were also determined. The concentrations of Cd and Cr in the most acidic leachate from the precipitator fly ash and the Cd concentration in the most acidic leachate from the boiler fly ash exceeded the recommended limits. Notably, none of the nine leachates extracted from the boiler, precipitator, or bottom ashes displayed mutagenic activity. This data partially affirms the safety of the fly and bottom ash produced by certain incinerators. Therefore, the biotoxicity of leachates from recycled ash should be routinely monitored before reusing the ash.
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Affiliation(s)
- Po-Wen Chen
- Department of Nursing, St. Mary's Junior College of Medicine, Nursing and Management, Yilan 26644, Taiwan.
| | - Zhen-Shu Liu
- Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
| | - Min-Jie Wun
- Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
| | - Tai-Chen Kuo
- Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
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Plusquin M, De Mulder K, Van Belleghem F, DeGheselle O, Pirotte N, Willems M, Cuypers A, Salvenmoser W, Ladurner P, Artois T, Smeets K. Toxic effects of cadmium on flatworm stem cell dynamics: A transcriptomic and ultrastructural elucidation of underlying mechanisms. ENVIRONMENTAL TOXICOLOGY 2016; 31:1217-1228. [PMID: 25846626 DOI: 10.1002/tox.22129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 02/06/2015] [Accepted: 02/15/2015] [Indexed: 06/04/2023]
Abstract
Stem cells or undifferentiated cells can cope more easily with external stresses. To evaluate the impact of toxic compounds on stem cell dynamics in vivo, in relation to other biological responses, we use the carcinogenic element cadmium and the regenerating model organism Macrostomum lignano. Through both BrdU and anti-histone H3 immunostainings, cadmium-induced effects were investigated at different stages of the stem cell cycle. A 24-h exposure to 100 and 250 μM CdCl2 significantly decreased the number of stem cells (neoblasts) in mitosis, whereas the number of cells in the S phase remained unchanged. After this short-term exposure, the ultrastructure of the neoblasts was minimally affected in contrast to the epidermal tissues. These results were supported by gene expression data: transcripts of cdc2 and pig3 were significantly upregulated during all treatments. Both genes are involved in the cell cycle progression and are transcribed in the gonadal region, where stem cells are highly represented. Based on a substantial increase in gene expression of heat shock proteins (HSP) and their high activity in the gonadal region, we hypothesize that these proteins are key players in the protection of stem cells against external stresses. Apart from the strong HSP induction, other protective processes including cell division, apoptosis and anti-oxidative defence, were also activated. We, therefore, conclude that the protection of stem cells against external stressors may be based on the interplay between stem cell maintenance, i.e. repair and recovery through division, on one hand and apoptosis on the other hand. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 1217-1228, 2016.
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Affiliation(s)
- Michelle Plusquin
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
| | - Katrien De Mulder
- Institute of Zoology, Center of Molecular Bioscience Innsbruck, University of Innsbruck, Innrain, Innsbruck, Austria
| | - Frank Van Belleghem
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
- Faculty of Management, Science and Technology, Open Universiteit, Valkenburgerweg 177, Heerlen, The Netherlands
| | - Olivier DeGheselle
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
| | - Nicky Pirotte
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
| | - Maxime Willems
- Pharmaceutical Technology, Ghent University, St. Pietersnieuwstraat, Gent, Belgium
| | - Ann Cuypers
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
| | - Willi Salvenmoser
- Institute of Zoology, Center of Molecular Bioscience Innsbruck, University of Innsbruck, Innrain, Innsbruck, Austria
| | - Peter Ladurner
- Institute of Zoology, Center of Molecular Bioscience Innsbruck, University of Innsbruck, Innrain, Innsbruck, Austria
| | - Tom Artois
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
| | - Karen Smeets
- Centre for Environmental Sciences, Department Biology, Hasselt University, Agoralaan, Diepenbeek, Belgium
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Metal binding mediated conformational change of XPA protein:a potential cytotoxic mechanism of nickel in the nucleotide excision repair. J Mol Model 2016; 22:156. [PMID: 27307058 DOI: 10.1007/s00894-016-3017-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 05/26/2016] [Indexed: 12/13/2022]
Abstract
Nucleotide excision repair (NER) is a pivotal life process for repairing DNA nucleotide mismatch caused by chemicals, metal ions, radiation, and other factors. As the initiation step of NER, the xeroderma pigmentosum complementation group A protein (XPA) recognizes damaged DNA molecules, and recruits the replication protein A (RPA), another important player in the NER process. The stability of the Zn(2+)-chelated Zn-finger domain of XPA center core portion (i.e., XPA98-210) is the foundation of its biological functionality, while the displacement of the Zn(2+) by toxic metal ions (such as Ni(2+), a known human carcinogen and allergen) may impair the effectiveness of NER and hence elevate the chance of carcinogenesis. In this study, we first calculated the force field parameters for the bonded model in the metal center of the XPA98-210 system, showing that the calculated results, including charges, bonds, angles etc., are congruent with previously reported results measured by spectrometry experiments and quantum chemistry computation. Then, comparative molecular dynamics simulations using these parameters revealed the changes in the conformation and motion mode of XPA98-210 Zn-finger after the substitution of Zn(2+) by Ni(2+). The results showed that Ni(2+) dramatically disrupted the relative positions of the four Cys residues in the Zn-finger structure, forcing them to collapse from a tetrahedron into an almost planar structure. Finally, we acquired the binding mode of XPA98-210 with its ligands RPA70N and DNA based on molecular docking and structural alignment. We found that XPA98-210's Zn-finger domain primarily binds to a V-shaped cleft in RPA70N, while the cationic band in its C-terminal subdomain participates in the recognition of damaged DNA. In addition, this article sheds light on the multi-component interaction pattern among XPA, DNA, and other NER-related proteins (i.e., RPA70N, RPA70A, RPA70B, RPA70C, RPA32, and RPA14) based on previously reported structural biology information. Thus, we derived a putative cytotoxic mechanism associated with the nickel ion, where the Ni(2+) disrupts the conformation of the XPA Zn-finger, directly weakening its interaction with RPA70N, and thus lowering the effectiveness of the NER process. In sum, this work not only provides a theoretical insight into the multi-protein interactions involved in the NER process and potential cytotoxic mechanism associated with Ni(2+) binding in XPA, but may also facilitate rational anti-cancer drug design based on the NER mechanism.
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Nersesyan A, Kundi M, Waldherr M, Setayesh T, Mišík M, Wultsch G, Filipic M, Mazzaron Barcelos GR, Knasmueller S. Results of micronucleus assays with individuals who are occupationally and environmentally exposed to mercury, lead and cadmium. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2016; 770:119-139. [PMID: 27894681 DOI: 10.1016/j.mrrev.2016.04.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 03/23/2016] [Accepted: 04/01/2016] [Indexed: 12/23/2022]
Abstract
Millions of humans are exposed occupationally and environmentally to lead, mercury and cadmium compounds. Mercury compounds are less abundant but some of them belong to the most toxic chemicals which are known. We evaluated the literature to find out if these metals act in humans as genotoxic carcinogens and if their health effects can be predicted by use of micronucleus (MN) assays with lymphocytes and/or with other genotoxicity tests. Numerous studies showed that lead and mercury induce cancer in humans and also in animals, in vitro experiments with cultured cells indicate that they cause DNA damage via different molecular mechanisms including release of reactive oxygen species and interactions with DNA repair processes. Also in most human studies, positive results were obtained in MN tests with lymphocytes (all 15 occupational studies with lead yielded positive results, with mercury 6 out of 7 investigations were positive). For cadmium, there is clear evidence that it causes cancer in humans; however, induction of chromosomal damage was only seen in high dose experiments with mammalian cells while results of animal and human studies yielded conflicting results (only in 2 of 5MN trials with humans positive findings were reported). Possibly, non-genotoxic mechanisms such as inhibition of apoptosis and interaction with signaling pathways account for the carcinogenic properties of cadmium species. The findings of MN studies with lead and mercury are in excellent agreement with results which were obtained with other endpoints (e.g. chromosomal aberrations and comet formations) and it is evident that this approach can be used for occupational and environmental monitoring of exposed individuals. Important future tasks will be the realization of larger studies with a uniform standardized protocol, the additional evaluation of anomalies other than MN (nuclear buds and bridges) and the combination of such trials with investigations which allow to define the molecular mechanisms relevant for exposed humans.
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Affiliation(s)
- Armen Nersesyan
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Borschkegasse 8a, 1090 Vienna, Austria
| | - Michael Kundi
- Institute of Environmental Health, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria
| | - Monika Waldherr
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Borschkegasse 8a, 1090 Vienna, Austria
| | - Tahereh Setayesh
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Borschkegasse 8a, 1090 Vienna, Austria
| | - Miroslav Mišík
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Borschkegasse 8a, 1090 Vienna, Austria.
| | - Georg Wultsch
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Borschkegasse 8a, 1090 Vienna, Austria
| | - Metka Filipic
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Večna pot 111, 1000 Ljubljana, Slovenia
| | - Gustavo Rafael Mazzaron Barcelos
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café s/n°, 14040-903 Ribeirão Preto, SP, Brazil
| | - Siegfried Knasmueller
- Institute of Cancer Research, Department of Medicine I, Medical University Vienna, Borschkegasse 8a, 1090 Vienna, Austria.
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Ristau K, Akgül Y, Bartel AS, Fremming J, Müller MT, Reiher L, Stapela F, Splett JP, Spann N. Toxicity in relation to mode of action for the nematode Caenorhabditis elegans: Acute-to-chronic ratios and quantitative structure-activity relationships. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:2347-2353. [PMID: 25994998 DOI: 10.1002/etc.3069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/27/2015] [Accepted: 05/14/2015] [Indexed: 06/04/2023]
Abstract
Acute-to-chronic ratios (ACRs) and quantitative structure-activity relationships (QSARs) are of particular interest in chemical risk assessment. Previous studies focusing on the relationship between the size or variation of ACRs to substance classes and QSAR models were often based on data for standard test organisms, such as daphnids and fish. In the present study, acute and chronic toxicity tests were performed with the nematode Caenorhabditis elegans for a total of 11 chemicals covering 3 substance classes (nonpolar narcotics: 1-propanol, ethanol, methanol, 2-butoxyethanol; metals: copper, cadmium, zinc; and carbamates: methomyl, oxamyl, aldicarb, dioxacarb). The ACRs were variable, especially for the carbamates and metals, although there was a trend toward small and less variable ACRs for nonpolar narcotic substances. The octanol-water partition coefficient was a good predictor for explaining acute and chronic toxicity of nonpolar narcotic substances to C. elegans, but not for carbamates. Metal toxicity could be related to the covalent index χm2r. Overall, the results support earlier results from ACR and QSAR studies with standard freshwater test animals. As such C. elegans as a representative of small soil/sediment invertebrates would probably be protected by risk assessment strategies already in use. To increase the predictive power of ACRs and QSARs, further research should be expanded to other species and compounds and should also consider the target sites and toxicokinetics of chemicals.
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Affiliation(s)
- Kai Ristau
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
| | - Yeliz Akgül
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
| | | | - Jana Fremming
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
| | | | - Luise Reiher
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
| | - Frederike Stapela
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
| | - Jan-Paul Splett
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
| | - Nicole Spann
- Department of Animal Ecology, Bielefeld University, Bielefeld, Germany
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Hariri E, Abboud MI, Demirdjian S, Korfali S, Mroueh M, Taleb RI. Carcinogenic and neurotoxic risks of acrylamide and heavy metals from potato and corn chips consumed by the Lebanese population. J Food Compost Anal 2015. [DOI: 10.1016/j.jfca.2015.03.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wu Y, Yang X, Zhang B, Guo LH. An electrochemiluminescence biosensor for 8-oxo-7,8-dihydro-2′-deoxyguanosine quantification and DNA repair enzyme activity analysis using a novel bifunctional probe. Biosens Bioelectron 2015; 69:235-40. [DOI: 10.1016/j.bios.2015.02.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/13/2015] [Accepted: 02/25/2015] [Indexed: 10/23/2022]
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Naidoo S, Vosloo D, Schoeman MC. Haematological and genotoxic responses in an urban adapter, the banana bat, foraging at wastewater treatment works. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 114:304-311. [PMID: 24953517 DOI: 10.1016/j.ecoenv.2014.04.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/29/2014] [Accepted: 04/29/2014] [Indexed: 06/03/2023]
Abstract
Wastewater Treatment Works (WWTWs) are a ubiquitous feature of the urban landscape. The Banana Bat, Neoromicia nana specifically exploits the high abundance of chironomid midge prey available at WWTWs but these populations also have higher levels of non-essential metals (Cd, Cr and Ni) in their tissues than bats foraging at unpolluted sites. Pollutant exposure may elicit primary physiological responses such as DNA damage and haematological changes. We investigated whether pollutant exposure from foraging at WWTWs impacts haematological and genotoxic parameters in N. nana. We compared four measures of haematological/genotoxic damage between N. nana foraging at three WWTWs and two unpolluted sites located in KwaZulu-Natal, South Africa: DNA damage measured by the Comet assay, total antioxidant capacity as indicated by the FRAP assay, chromosomal aberration indicated by micronuclei formation and blood oxygen capacity based on haematocrits. There was significantly higher DNA damage in N. nana at WWTWs than in bats from unpolluted sites, suggesting inadequate repair to double stranded DNA breaks. In addition, WWTW bats had a significantly lower antioxidant capacity than bats from unpolluted sites. This suggests that bats at WWTWs may have a diminished capacity to cope with the excess reactive oxidative species (ROS) produced from pollutants such as metals. There was no increase in micronucleus frequency in WWTW bats, indicating that cellular functioning has not yet been disrupted by chemical exposure. Haematocrits, however, were significantly higher in WWTW bats, possibly due to erythrocyte production in response to certain pollutants. Thus, effects of pollutant exposure in bats foraging at WWTWs elicit sub-lethal haematological and genotoxic responses which may pose serious long-term risks. This provides evidence that WWTWs, that are aimed to remove pollutants from the environment, can themselves act as a source of contamination and pose a threat to animals exploiting these habitats.
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Affiliation(s)
- Samantha Naidoo
- School of Life Sciences, University of KwaZulu-Natal, Durban 4000, South Africa.
| | - Dalene Vosloo
- School of Life Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - M Corrie Schoeman
- School of Life Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
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45
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Chen PW, Liu ZS, Wun MJ, Ran CL. Evaluating the mutagenicity of leachates obtained from the bottom ash of a municipal solid waste incinerator by using a Salmonella reverse mutation assay. CHEMOSPHERE 2015; 124:70-76. [PMID: 25434273 DOI: 10.1016/j.chemosphere.2014.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 10/27/2014] [Accepted: 11/06/2014] [Indexed: 06/04/2023]
Abstract
The mutagenic potential of leachates derived from the bottom ash of a municipal solid waste incinerator in Taiwan were evaluated using an Ames Salmonella mutagenicity assay with three standard tester strains, TA98, TA100, and TA1535. Three types of leachants, leachant A (pH 4.93), leachant B (pH 2.88), and leachant C (deionized water, pH 6.0), were carried out according to toxicity characteristic leaching procedure (TCLP). Moreover, two types of bottom ash, nonsieved and sieved bottom ash (particle size <4.75 mm), were analyzed with the TCLP and the Ames assay. The concentrations of five heavy metals (Cd, Cr, Cu, Pb, and Zn) in the leachates were also estimated with an ICP-OES. The results indicated that the metal concentrations in the TCLP leachates of bottom ash were all below the limits set by Taiwanese regulations. However, leachate A from nonsieved and <4.75-mm-sieved bottom ash showed mutagenicity. Moreover, leachate A from <4.75 mm-sieved bottom ash displayed stronger mutagenicity than that from nonsieved ash. The leachate A from <4.75-mm-sieved bottom ash, that were diluted by 100-fold showed no mutagenicity. In conclusion, our results suggested that the chemical composition and mutagenic potential of leachates should be monitored to evaluate the safety of bottom ash.
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Affiliation(s)
- Po-Wen Chen
- Department of Nursing, St. Mary's Junior College of Medicine, Nursing and Management, Yilan, Taiwan, ROC
| | - Zhen-Shu Liu
- Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC.
| | - Min-Jie Wun
- Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC
| | - Cai-Ling Ran
- Department of Nursing, St. Mary's Junior College of Medicine, Nursing and Management, Yilan, Taiwan, ROC
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46
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Pinto MF, Louro H, Costa PM, Caeiro S, Silva MJ. Exploring the potential interference of estuarine sediment contaminants with the DNA repair capacity of human hepatoma cells. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:559-570. [PMID: 25965191 DOI: 10.1080/15287394.2015.1006712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Estuaries may be reservoirs of a wide variety of pollutants, including mutagenic and carcinogenic substances that may impact on the ecosystem and human health. A previous study showed that exposure of human hepatoma (HepG2) cells to extracts from sediment samples collected in two areas (urban/industrial and riverine/agricultural) of an impacted estuary (Sado, Portugal), produced differential cytotoxic and genotoxic effects. Those effects were found to be consistent with levels and nature of sediment contamination. The present study aimed at evaluating whether the mixtures of contaminants contained in those extracts were able to modulate DNA repair capacity of HepG2 cells. The residual level of DNA damage was measured by the comet assay in cells exposed for 24 or 48 h to different extracts, after a short preexposure to a challenging concentration range of ethyl methanesulfonate (EMS), as a model alkylating agent. The results suggested that the mixture of contaminants present in the tested samples, besides a potential direct effect on the DNA molecule, may also interfere with DNA repair mechanisms in HepG2 cells, thus impairing their ability to deal with genotoxic stress and, possibly, facilitating accumulation of mutations. Humans are environmentally/occupationally exposed to mixtures rather than to single chemicals. Thus, the observation that estuarine contaminants induce direct and indirect DNA strand breakage in human cells, the latter through the impairment of DNA repair, raises additional concerns regarding potential hazards from exposure and the need to further explore these endpoints in the context of environmental risk assessment.
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Affiliation(s)
- Miguel Ferreira Pinto
- a National Institute of Health Dr. Ricardo Jorge, I.P. , Department of Human Genetics , Lisbon , Portugal
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Vignardi CP, Hasue FM, Sartório PV, Cardoso CM, Machado ASD, Passos MJACR, Santos TCA, Nucci JM, Hewer TLR, Watanabe IS, Gomes V, Phan NV. Genotoxicity, potential cytotoxicity and cell uptake of titanium dioxide nanoparticles in the marine fish Trachinotus carolinus (Linnaeus, 1766). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 158:218-229. [PMID: 25481788 DOI: 10.1016/j.aquatox.2014.11.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 11/05/2014] [Accepted: 11/14/2014] [Indexed: 06/04/2023]
Abstract
Nanoparticles have physicochemical characteristics that make them useful in areas such as science, technology, medicine and in products of everyday use. Recently the manufacture and variety of these products has grown rapidly, raising concerns about their impact on human health and the environment. Adverse effects of exposure to nanoparticles have been reported for both terrestrial and aquatic organisms, but the toxic effects of the substances on marine organisms remain poorly understood. The main aim of this study was to evaluate the genotoxicity of TiO2-NP in the marine fish Trachinotus carolinus, through cytogenotoxic methods. The fish received two different doses of 1.5 μg and 3.0 μg-TiO2-NP g(-1) by intraperitoneal injection. Blood samples were collected to analyze erythrocyte viability using the Trypan Blue exclusion test, comet assay (pH>13), micronucleus (MN) and other erythrocyte nuclear abnormalities (ENA) 24, 48 and 72 h after injection. The possible cell uptake of TiO2-NP in fish injected with the higher dose was investigated after 72 h using transmission electron microscopy (TEM). The results showed that TiO2-NP is genotoxic and potentially cytotoxic for this species, causing DNA damage, inducing the formation of MN and other ENA, and decreasing erythrocyte viability. TEM examination revealed that cell uptake of TiO2-NP was mainly in the kidney, liver, gills and to a lesser degree in muscle. To the extent of the authors' knowledge, this is the first in vivo study of genotoxicity and other effects of TiO2-NP in a marine fish.
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Affiliation(s)
- Caroline P Vignardi
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Fabio M Hasue
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Priscila V Sartório
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Caroline M Cardoso
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Alex S D Machado
- Faculty of Veterinary Medicine, Integrated College North of Minas Osmane Barbosa Avenue, 11111, JK, Montes Claros, MG 39404006, Brazil.
| | - Maria J A C R Passos
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Thais C A Santos
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Juliana M Nucci
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Thiago L R Hewer
- Institute of Chemistry, University of São Paulo, Prof. Lineu Prestes Avenue, 748, Cidade Universitária, Butantã, São Paulo, SP 05508000, Brazil.
| | - Ii-Sei Watanabe
- Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 2415, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Vicente Gomes
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
| | - Ngan V Phan
- Department of Biological Oceanography, Oceanographic Institute, University of São Paulo, Praça do Oceanogáfico 191, Cidade Universitária, Butantã, São Paulo, SP 05508900, Brazil.
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Chen YY, Zhu JY, Chan KM. Effects of cadmium on cell proliferation, apoptosis, and proto-oncogene expression in zebrafish liver cells. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 157:196-206. [PMID: 25456234 DOI: 10.1016/j.aquatox.2014.10.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/20/2014] [Accepted: 10/21/2014] [Indexed: 06/04/2023]
Abstract
Cadmium (Cd) is one of the major transitional metal that has toxic effects in aquatic organisms and their associated ecosystem; however, its hepatic toxicity and carcinogenicity are not very well characterized. We used a zebrafish liver (ZFL) cell line as a model to investigate the mechanism of Cd-induced toxicity on hepatocytes. Our results showed that Cd can be effectively accumulated in ZFL cells in our exposure experiments. Cell cytotoxicity assays and flow cytometer measurements revealed that Cd(2+) stimulated ZFL cell proliferation with decreasing apoptotic cell numbers indicating potentially tumorigenic effects of Cd in ZFL cells. Gene expression profiles also indicated that Cd downregulated oncogenes p53 and rad51 and upregulated immediate response oncogenes, growth arrest and DNA damage-inducible (gadd45) genes, and growth factors. We also found dramatic changes in the gene expression of c-jun and igf1rb at different exposure time points, supporting the notion that potentially tumorigenic of Cd-is involved in the activation of immediate early genes or genes related to apoptosis in cancer promotion.
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Affiliation(s)
- Ying Ying Chen
- School of Life Sciences, Chinese University, Sha Tin, N.T., Hong Kong SAR, China
| | - Jin Yong Zhu
- School of Life Sciences, Chinese University, Sha Tin, N.T., Hong Kong SAR, China
| | - King Ming Chan
- School of Life Sciences, Chinese University, Sha Tin, N.T., Hong Kong SAR, China.
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49
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Jurowski K, Szewczyk B, Nowak G, Piekoszewski W. Biological consequences of zinc deficiency in the pathomechanisms of selected diseases. J Biol Inorg Chem 2014; 19:1069-79. [PMID: 24748223 PMCID: PMC4175048 DOI: 10.1007/s00775-014-1139-0] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 04/09/2014] [Indexed: 01/01/2023]
Abstract
From many points of view, zinc is one of the most important trace elements in biological systems. Many articles describe the well-known role of this metal in human physiology and pathophysiology, but in the related literature, there is a lack of current and reliable reviews of the role of zinc deficiency in many diseases. In this article, we describe the role of zinc deficiency in the oxidative stress control, immune response, proliferation, and pathogenesis and pathophysiology of selected diseases such as depression, cardiovascular diseases, diabetes mellitus, Alzheimer's disease, and Wilson's disease.
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Affiliation(s)
- Kamil Jurowski
- Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Kraków, Poland
- Malopolska Centre for Translational Medicine, Faculty of Medicine, Jagiellonian University Collegium Medicum, Kraków, Poland
| | | | - Gabriel Nowak
- Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
- Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Kraków, Poland
| | - Wojciech Piekoszewski
- Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, R. Ingardena 3, 30-060 Kraków, Poland
- Laboratory of High Resolution Mass Spectrometry, Regional Laboratory of Physicochemical Analysis and Structural Research, Faculty of Chemistry, Jagiellonian University, Kraków, Poland
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50
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Ackah M, Anim AK, Gyamfi ET, Zakaria N, Hanson J, Tulasi D, Enti-Brown S, Saah-Nyarko E, Bentil NO, Osei J. Uptake of heavy metals by some edible vegetables irrigated using wastewater: a preliminary study in Accra, Ghana. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:621-634. [PMID: 24114276 DOI: 10.1007/s10661-013-3403-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 08/23/2013] [Indexed: 06/02/2023]
Abstract
The heavy metals (Fe, Zn, Pb, Ni, Cr, Co, and Cd) burden in wastewater, soil, and vegetable samples from a wastewater irrigated farm located at KorleBu, Accra has been investigated. Flame atomic absorption spectrometry after microwave digestion using a combination of HNO3, HCl, and H2O2 (for water), and HNO3 and HCl (for soil and vegetables). The mean concentrations (in milligrams per kilogram) of heavy metals in the soil samples were in the order of Fe (171 ± 5.22) > Zn (36.06 ± 4.54) > Pb (33.35 ± 35.62) > Ni (6.31 ± 8.15) > Cr (3.40 ± 3.63) > Co (1.36 ± 0.31) > Cd (0.43 ± 0.24), while the vegetables were in the order of Fe (183.11 ± 161.2) > Zn (5.38 ± 3.50) > Ni (3.52 ± 1.27) > Pb (2.49 ± 1.81) > Cr (1.46 ± 0.51) > Co (0.66 ± 0.25) > Cd (0.36 ± 0.15). The bioconcentration factors suggest environmental monitoring for the heavy metals as follows: Cd (0.828), Cr (0.431), Ni (0.558), Co (0.485), and Fe (1.067). Estimated daily intakes were very low for both children and adults except Fe (0.767 mg/kg/day) in children. The population that consume vegetables from the study area were, however, estimated to be safe based on the results obtained from the health risk index, which were all < <1. The sodium absorption ratio according to FAO (1985) classifications indicate that the wastewater in the study area is unsuitable for irrigation purposes.
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Affiliation(s)
- Michael Ackah
- Nuclear Chemistry and Environmental Research Institute, National Nuclear Research Institute, P.O. Box LG 80, Legon, Accra, Ghana,
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