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Ahamed M, Akhtar MJ, Khan MAM, Alhadlaq HA, Alrokayan SA. Cytotoxic response of platinum-coated gold nanorods in human breast cancer cells at very low exposure levels. ENVIRONMENTAL TOXICOLOGY 2016; 31:1344-1356. [PMID: 25846798 DOI: 10.1002/tox.22140] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/12/2015] [Accepted: 03/18/2015] [Indexed: 06/04/2023]
Abstract
Because of unique optical behavior gold nanorods (GNRs) have attracted attention for the application in biomedical field such as bio-sensing, bio-imaging and hyperthermia. However, toxicological response of GNRs is controversial due to their different surface coating. Therefore, a comprehensive knowledge about toxicological profile of GNRs is necessary before their biomedical applications. First time, we investigated the toxic response of GNRs coated with platinum (GNRs-Pt) in human breast carcinoma (MCF-7) cells. Platinum coating further improves the optical and catalytic properties of GNRs. Assays such as 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide (MTT), neutral red uptake (NRU) and lactate dehydroganase (LDH) assays have shown that GNRs-Pt induced cytotoxicity at very low exposure levels (0.1-0.8 μg mL-1 ). Accumulation of cells in SubG1 phase and low mitochondrial membrane potential (JC-1 probe) in treated cells suggest that GNRs-Pt induced cell death via apoptotic pathway. Quantitative real-time PCR data demonstrated that mRNA expression of apoptotic genes (bax, caspase-3 and caspase-9) were up-regulated while anti-apoptotic gene bcl-2 was down-regulated in cells exposed to GNRs-Pt. We further observed the higher activity of caspase-3 and caspase-9 enzymes in GNRs-Pt treated cells supporting mRNA data. Moreover, N-acetyl cysteine (NAC) significantly attenuated the ROS generation and cytotoxicity induced by GNRs-Pt in MCF-7 cells suggesting that ROS might plays a crucial role in GNRs-Pt induced toxicity. This study warns of possible toxicity of GNRs even at very low exposure levels. Further investigations needed to explore potential mechanisms of this low dose toxicity phenomenon. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 1344-1356, 2016.
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Affiliation(s)
- Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Mohd Javed Akhtar
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M A Majeed Khan
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Hisham A Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, 11451, Saudi Arabia
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Salman A Alrokayan
- Research Chair in Drug Targeting and Treatment of Cancer Using Nanoparticles, Department of Biochemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Ahamed M, Akhtar MJ, Alhadlaq HA, Alshamsan A. Copper ferrite nanoparticle-induced cytotoxicity and oxidative stress in human breast cancer MCF-7 cells. Colloids Surf B Biointerfaces 2016; 142:46-54. [DOI: 10.1016/j.colsurfb.2016.02.043] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/11/2016] [Accepted: 02/18/2016] [Indexed: 01/13/2023]
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53
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Vrček IV, Žuntar I, Petlevski R, Pavičić I, Dutour Sikirić M, Ćurlin M, Goessler W. Comparison of in vitro toxicity of silver ions and silver nanoparticles on human hepatoma cells. ENVIRONMENTAL TOXICOLOGY 2016; 31:679-692. [PMID: 25448069 DOI: 10.1002/tox.22081] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 11/05/2014] [Accepted: 11/09/2014] [Indexed: 05/29/2023]
Abstract
Scientific information on the potential harmful effects of silver nanoparticles (AgNPs) on human health severely lags behind their exponentially growing applications in consumer products. In assessing the toxic risk of AgNP usage, liver, as a detoxifying organ, is particularly important. The aim of this study was to explore the toxicity mechanisms of nano and ionic forms of silver on human hepatoblastoma (HepG2) cells. The results showed that silver ions and citrate-coated AgNPs reduced cell viability in a dose-dependent manner. The IC50 values of silver ions and citrate-coated AgNPs were 0.5 and 50 mg L(-1) , respectively. The LDH leakage and inhibition of albumin synthesis, along with decreased ALT activity, indicated that treatment with either AgNP or Ag ions resulted in membrane damage and reduced the cell function of human liver cells. Evaluation of oxidative stress markers demonstrating depletion of GSH, increased ROS production, and increased SOD activity, indicated that oxidative stress might contribute to the toxicity effects of nano and ionic forms of silver. The observed toxic effect of AgNP on HepG2 cells was substantially weaker than that caused by ionic silver, while the uptake of nano and ionic forms of silver by HepG2 cells was nearly the same. © 2014 Wiley Periodicals, Inc. Environ Toxicol 31: 679-692, 2016.
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Affiliation(s)
- Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Analytical Toxicology and Mineral Metabolism Unit, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Irena Žuntar
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Department for Clinical Chemistry, Ante Kovačića 1, 10 000, Zagreb, Croatia
| | - Roberta Petlevski
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Department for Clinical Chemistry, Ante Kovačića 1, 10 000, Zagreb, Croatia
| | - Ivan Pavičić
- Institute for Medical Research and Occupational Health, Analytical Toxicology and Mineral Metabolism Unit, Ksaverska cesta 2, 10 000, Zagreb, Croatia
| | - Maja Dutour Sikirić
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička cesta 54, 10 000, Zagreb, Croatia
| | - Marija Ćurlin
- University of Zagreb, School of Medicine, Department for Hystology and Embryology, Šalata 3, 10 000, Zagreb, Croatia
| | - Walter Goessler
- Institute for Chemistry, Analytical Chemistry, Karl-Franzens University, Universitätsplatz 1, 8010, Graz, Austria
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54
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Inhibition of Nickel Nanoparticles-Induced Toxicity by Epigallocatechin-3-Gallate in JB6 Cells May Be through Down-Regulation of the MAPK Signaling Pathways. PLoS One 2016; 11:e0150954. [PMID: 26943640 PMCID: PMC4778769 DOI: 10.1371/journal.pone.0150954] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/22/2016] [Indexed: 12/21/2022] Open
Abstract
With the rapid development in nanotechnology, nickel nanoparticles (Ni NPs) have emerged in the application of nanomedicine in recent years. However, the potential adverse health effects of Ni NPs are unclear. In this study, we examined the inhibition effects of epigallocatechin-3-gallate (EGCG) on the toxicity induced by Ni NPs in mouse epidermal cell line (JB6 cell). MTT assay showed that Ni NPs induced cytotoxicity in a dose-dependent manner while EGCG exerted a certain inhibition on the toxicity. Additionally, EGCG could reduce the apoptotic cell number and the level of reactive oxygen species (ROS) in JB6 cells induced by Ni NPs. Furthermore, we observed that EGCG could down-regulate Ni NPs-induced activator protein-1 (AP-1) and nuclear factor-κB (NF-κB) activation in JB6 cells, which has been shown to play pivotal roles in tumor initiation, promotion and progression. Western blot indicated that EGCG could alleviate the toxicity of Ni NPs through regulating protein changes in MAPK signaling pathways. In summary, our results suggest that careful evaluation on the potential health effects of Ni NPs is necessary before being widely used in the field of nanomedicine. Inhibition of EGCG on Ni NPs-induced cytotoxicity in JB6 cells may be through the MAPK signaling pathways suggesting that EGCG might be useful in preventing the toxicity of Ni NPs.
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Lee YJ, Lim SS, Baek BJ, An JM, Nam HS, Woo KM, Cho MK, Kim SH, Lee SH. Nickel(II)-induced nasal epithelial toxicity and oxidative mitochondrial damage. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 42:76-84. [PMID: 26809061 DOI: 10.1016/j.etap.2016.01.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 01/03/2016] [Accepted: 01/05/2016] [Indexed: 06/05/2023]
Abstract
In probing the underlying mechanisms of nickel(II)-induced cytotoxicity on nasal epithelium, we investigated the effects of nickel(II) acetate on nasal epithelial RPMI-2650 cells. Nickel(II) elicited apoptosis, as signified by pyknotic and fragmented nuclei, increased caspase-3/7 activity, and an increase in annexin V binding, hypodiploid DNA, and Bax/Bcl-2 protein ratio. Nickel(II)-induced G2/M arrest was associated with up-regulation of p21(WAF1/CIP1) expression, decrease in phosphorylation at Thr(161) of Cdc2, and down-regulation of cyclin B1. Associated with these responses, ROS generation and mitochondrial depolarization increased in a nickel(II) concentration-dependent fashion. Pretreatment with N-acetylcysteine (NAC) attenuated these changes. p53 reporter gene assay and analyses of p53, Puma, Bax, and Bcl-2 protein levels indicated that NAC inhibited nickel(II)-induced activation of p53-mediated mitochondrial apoptotic pathway. Collectively, our study provides evidences that nickel(II) may induce oxidative damage on nasal epithelium in which antioxidant NAC protects cells against nickel(II)-induced apoptosis through the prevention of oxidative stress-mediated mitochondrial damage.
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Affiliation(s)
- Yoon-Jin Lee
- Department of Biochemistry, College of Medicine, Soonchunhyang University, Cheonan 330-930, Republic of Korea; Division of Molecular Cancer Research, Soonchunhyang Medical Research Institute, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Soo-Sung Lim
- Department of Biochemistry, College of Medicine, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Byoung Joon Baek
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Cheonan 330-930, Republic of Korea
| | - Je-Min An
- Division of Molecular Cancer Research, Soonchunhyang Medical Research Institute, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Hae-Seon Nam
- Division of Molecular Cancer Research, Soonchunhyang Medical Research Institute, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Kee-Min Woo
- Division of Molecular Cancer Research, Soonchunhyang Medical Research Institute, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Moon-Kyun Cho
- Division of Molecular Cancer Research, Soonchunhyang Medical Research Institute, Soonchunhyang University, Cheonan 330-930, Republic of Korea
| | - Sung-Ho Kim
- Department of Chemistry, College of Natural Sciences, Soonchunhyang University, Asan 336-745, Republic of Korea
| | - Sang-Han Lee
- Department of Biochemistry, College of Medicine, Soonchunhyang University, Cheonan 330-930, Republic of Korea; Division of Molecular Cancer Research, Soonchunhyang Medical Research Institute, Soonchunhyang University, Cheonan 330-930, Republic of Korea.
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Wang MQ, Ye C, Bao SJ, Zhang Y, Xu MW, Li Z. Bimetal–organic-frameworks-derived yolk–shell-structured porous Co2P/ZnO@PC/CNTs hybrids for highly sensitive non-enzymatic detection of superoxide anion released from living cells. Chem Commun (Camb) 2016; 52:12442-12445. [DOI: 10.1039/c6cc06974f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bimetal-organic framework derived yolk–shell–structured porous Co2P/ZnO@PC/CNTs were used as highly active electrocatalysts for electrochemical sensing of superoxide anions.
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Affiliation(s)
- Min-Qiang Wang
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- P. R. China
| | - Cui Ye
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- P. R. China
| | - Shu-Juan Bao
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- P. R. China
| | - Yan Zhang
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- P. R. China
| | - Mao-Wen Xu
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- P. R. China
| | - Zhe Li
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials and Energy
- Southwest University
- Chongqing 400715
- P. R. China
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57
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Affiliation(s)
- Ian L. Gunsolus
- Department of Chemistry, University of Minnesota, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant
Street SE, Minneapolis, Minnesota 55455, United States
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Guo DD, Li QN, Li CM, Bi HS. Zinc oxide nanoparticles inhibit murine photoreceptor-derived cell proliferation and migration via reducing TGF-β and MMP-9 expression in vitro. Cell Prolif 2015; 48:198-208. [PMID: 25615023 DOI: 10.1111/cpr.12163] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 10/01/2014] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES To investigate behaviour and expression of transforming growth factor-β (TGF-β) and matrix metalloproteinases (MMP-9) in murine photoreceptor-derived cells (661W) after incubation with zinc oxide (ZnO) nanoparticles. MATERIALS AND METHODS We explored effects of ZnO nanoparticles on 661W cells using a real-time cell electronic sensing system, flow cytometry, multiple function microplate reading, real-time quantitative PCR detection system and enzyme-linked immunosorbent assay respectively. RESULTS Our results indicate that ZnO nanoparticles induced overload of calcium and reactive oxygen species within cells, causing formation of apoptotic bodies, disruption of cell cycle distribution, and reduction in expression of TGF-β and MMP-9, to suppress cell proliferation and migration. Our findings show that disruption of intracellular calcium homoeostasis and overproduction of reactive oxygen species were closely associated with reduction of TGF-β and MMP-9 in 661W cells under ZnO nanoparticle treatment. CONCLUSIONS Results of our study indicate that ZnO nanoparticles suppressed cell proliferation and migration, and reduced production of TGF-β and MMP-9 at both gene and protein levels. Our findings contribute to the understanding of the molecular mechanisms that reduced TGF-β and MMP-9 levels inhibit cell proliferation and migration under ZnO nanoparticle influence.
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Affiliation(s)
- Da Dong Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities of Shandong, Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, 250002, China
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Ahamed M, Alhadlaq HA. Nickel nanoparticle-induced dose-dependent cyto-genotoxicity in human breast carcinoma MCF-7 cells. Onco Targets Ther 2014; 7:269-80. [PMID: 24627639 PMCID: PMC3931666 DOI: 10.2147/ott.s58044] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Despite the widespread application of nickel nanoparticles (Ni NPs) in industrial, commercial, and biomedical fields, their response to human cells has not been clearly elucidated. In the study reported here, Ni NPs with a 28 nm diameter were used to study their interaction with human breast carcinoma (MCF-7) cells. Dose-dependent decreased cell viability and damaged cell membrane integrity showed the cytotoxic potential of the Ni NPs. We further found that Ni NPs induce oxidative stress in a dose-dependent manner, as evidenced by glutathione depletion and reactive oxygen species (ROS) generation. Comet assay indicated the dose-dependent induction of DNA damage due to Ni NP exposure. The level of messenger RNA, as well as activity of caspase-3 enzyme, was higher in MCF-7 cells exposed to Ni NPs than in control cells. Moreover, we observed statistically significant correlations of ROS with cell viability (R2=0.984), DNA damage (% tail DNA) (R2=0.982), and caspase-3 enzyme activity (R2=0.991). To the best of our knowledge, this is the first study on human breast cancer cells to have shown the cyto-genotoxicity of Ni NPs, which seems to be mediated through ROS.
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Affiliation(s)
- Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
| | - Hisham A Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia ; Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, Saudi Arabia
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