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Gong CM, Xu YF, Liang XS, Mo JL, Zhuang ZX. PARP-1 overexpression does not protect HaCaT cells from DNA damage induced by SiO 2 nanoparticles. Toxicol Res (Camb) 2021; 10:399-408. [PMID: 34141153 DOI: 10.1093/toxres/tfaa110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 12/04/2020] [Accepted: 12/21/2020] [Indexed: 11/12/2022] Open
Abstract
Nano-SiO2 is increasingly used in diagnostic and biomedical research because of its ease of production and relatively low cost and which is generally regarded as safe and has been approved for use as a food or animal feed ingredient. Although recent literature reveals that nano-SiO2 may present toxicity and DNA damage, however, the underlying mechanism remains poorly understood. Since in previous studies, we found that nano-SiO2 treatment down-regulated the expression of the poly(ADP-ribose) polymerases-1 (PARP-1), a pivotal DNA repair gene, in human HaCaT cells and PAPR-1 knockdown can aggravate DNA damage induced by nano-SiO2. Therefore, we speculate whether PARP-1 overexpression can protect DNA from damage induced by nano-SiO2. However, our data demonstrated that overexpression of PARP-1 in HaCaT cells slightly enhanced the cellular proliferation of undamaged cells, when compared with both empty vector control cells and parental cells, but had drastic consequences for cells treated with nano-SiO2. The PARP-1 overtransfected cells were sensitized to the cytotoxic effects and DNA damage of nano-SiO2 compared with control parental cells. Meanwhile, flow cytometric analysis of nano-SiO2 stimulated poly(ADP-ribose) synthesis revealed consistently larger fractions of cells positive for this polymer in the PARP-1 overexpression cells than in control clones. Combining our previous research on PARP-1 knockdown HaCaT cells, we hypothesize that an optimal level of cellular poly(ADP-ribose) accumulation exists for the cellular recovery from DNA damage.
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Affiliation(s)
- Chun-Mei Gong
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, Luohu, PR China
| | - Yuan-Fei Xu
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, Luohu, PR China
| | - Xiong-Shun Liang
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, Luohu, PR China
| | - Jun-Luan Mo
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, Luohu, PR China
| | - Zhi-Xiong Zhuang
- Shenzhen Center for Disease Control and Prevention, Longyuan Road 8, Shenzhen 518055, Nanshan, PR China
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Dong X, Wu Z, Li X, Xiao L, Yang M, Li Y, Duan J, Sun Z. The Size-dependent Cytotoxicity of Amorphous Silica Nanoparticles: A Systematic Review of in vitro Studies. Int J Nanomedicine 2020; 15:9089-9113. [PMID: 33244229 PMCID: PMC7683827 DOI: 10.2147/ijn.s276105] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 09/29/2020] [Indexed: 12/11/2022] Open
Abstract
With the increasing production and application of engineered amorphous silica nanoparticles (aSiNPs), people have more opportunities to be exposed to aSiNPs. However, the knowledge of its adverse health effects and related mechanisms is still limited, compared with the well-studied crystalline micron-sized silica. Since small differences in the physical–chemical properties of nanoparticles could cause significant differences in the toxic effect, it is important to distinguish how these variations influence the outcoming toxicity. Notably, particle size, as one of the essential characterizations of aSiNPs, is relevant to its biological activities. Thus, the aim of this systematic review was to summarize the relationship between the particle size of aSiNPs and its adverse biological effects. In order to avoid the influence of complicated in vivo experimental conditions on the toxic outcome, only in vitro toxicity studies which reported on the cytotoxic effect of different sizes aSiNPs were included. After the systematic literature retrieval, selection, and quality assessment process, 76 eligible scientific papers were finally included in this review. There were 76% of the studies that concluded a size-dependent cytotoxicity of aSiNPs, in which smaller-sized aSiNPs possessed greater toxicity. However, this trend could be modified by certain influence factors, such as the synthetic method of aSiNPs, particle aggregation state in cell culture medium, toxicity endpoint detection method, and some other experimental conditions. The effects of these influence factors on the size-dependent cytotoxicity of aSiNPs were also discussed in detail in the present review.
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Affiliation(s)
- Xuemeng Dong
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China
| | - Zehao Wu
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China
| | - Xiuping Li
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China
| | - Liyan Xiao
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China
| | - Man Yang
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China.,Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, People's Republic of China
| | - Yang Li
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China.,Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, People's Republic of China
| | - Junchao Duan
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China.,Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, People's Republic of China
| | - Zhiwei Sun
- School of Public Health, Capital Medical University, Beijing 100069, People's Republic of China.,Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, People's Republic of China
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Aggregation Behavior of Nano-Silica in Polyvinyl Alcohol/Polyacrylamide Hydrogels Based on Dissipative Particle Dynamics. Polymers (Basel) 2017; 9:polym9110611. [PMID: 30965914 PMCID: PMC6418808 DOI: 10.3390/polym9110611] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 11/10/2017] [Indexed: 12/14/2022] Open
Abstract
Due to the aggregation behavior of nano-silica in aqueous solution, the use of nano-silica without surface modification for synthesizing hydrogels is still a challenging task. This paper presents our study on the use of dissipative particle dynamics simulations to discover the aggregation behavior of nano-silica in polyvinyl alcohol (PVA)/polyacrylamide (PAM) blended hydrogels. By simulations, we aimed at investigating the effects of such factors as nano-silica content, polymer component ratio, temperature and shear rate on the aggregation behavior of nano-silica in terms of the mesoscopic morphologies and the relative concentration distribution functions. Our results reveal that the dispersion of nano-silica is seen if the nano-silica content is increased to 1.5%, and the aggregation of nano-silica becomes noticeable in blended hydrogels with an increase in the nano-silica content. This finding agrees well with the experimental results obtained by means of scanning electron microscopy. Furthermore, it is also found that the dispersion of nano-silica becomes more uniform with an increase in PAM content, temperature and shear rate. These findings greatly enrich our understanding of the aggregation behavior of nano-silica in PVA/PAM blended hydrogels.
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Martin A, Sarkar A. Overview on biological implications of metal oxide nanoparticle exposure to human alveolar A549 cell line. Nanotoxicology 2017; 11:713-724. [PMID: 28830283 DOI: 10.1080/17435390.2017.1366574] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metal oxides (MeOx) are exponentially being used in a wide range of applications and are the largest class of commercially produced nanomaterials. This presents unprecedented human exposure. Thus, understanding nanoparticle induced cellular stress can greatly help design strategies to combat them. Scores of studies have been carried out to understand the effects of MeOx nanoparticle exposure on human alveolar cells, which are highly susceptible to aerosolized matter. There is a huge redundancy of information generated, also, a lack of a comprehensive conglomeration of this information. We have built here in a sincere summary of the cellular responses reported till date as a direct consequence of MeOx nanoparticle exposure on human alveolar (A549) cells. Detailed accounts of cellular morphology modulation, generation of reactive oxygen species (ROS) and oxidative stress, inflammation and cytokine release, genotoxic and epi-genotoxic insults, toxicological trend, nanoparticle internalization, modes of cell death, protein synthesis, and membrane damage among others are discussed. Finally, to aid predictability of the highly dynamic and multifactorial nature of this toxicity, we have hypothesized models that describe the ensuing mechanisms based on common patterns discovered throughout our literature survey.
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Affiliation(s)
- Ansie Martin
- a Department of Biological Sciences , CMBL, BITS Pilani K K Birla Goa Campus , Zuarinagar , India
| | - Angshuman Sarkar
- a Department of Biological Sciences , CMBL, BITS Pilani K K Birla Goa Campus , Zuarinagar , India
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Chen R, Hu B, Liu Y, Xu J, Yang G, Xu D, Chen C. Beyond PM2.5: The role of ultrafine particles on adverse health effects of air pollution. Biochim Biophys Acta Gen Subj 2016; 1860:2844-55. [DOI: 10.1016/j.bbagen.2016.03.019] [Citation(s) in RCA: 193] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/04/2016] [Accepted: 03/11/2016] [Indexed: 12/29/2022]
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Vidé J, Romain C, Feillet-Coudray C, Bonafos B, Cristol JP, Fouret G, Rouanet JM, Gaillet S. Assessment of potential toxicological aspects of dietary exposure to silicon-rich spirulina in rats. Food Chem Toxicol 2015; 80:108-113. [DOI: 10.1016/j.fct.2015.02.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 02/23/2015] [Accepted: 02/24/2015] [Indexed: 12/31/2022]
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Landsiedel R, Sauer UG, Ma-Hock L, Schnekenburger J, Wiemann M. Pulmonary toxicity of nanomaterials: a critical comparison of published in vitro assays and in vivo inhalation or instillation studies. Nanomedicine (Lond) 2014; 9:2557-85. [DOI: 10.2217/nnm.14.149] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
To date, guidance on how to incorporate in vitro assays into integrated approaches for testing and assessment of nanomaterials is unavailable. In addressing this shortage, this review compares data from in vitro studies to results from in vivo inhalation or intratracheal instillation studies. Globular nanomaterials (ion-shedding silver and zinc oxide, poorly soluble titanium dioxide and cerium dioxide, and partly soluble amorphous silicon dioxide) and nanomaterials with higher aspect ratios (multiwalled carbon nanotubes) were assessed focusing on the Organisation for Economic Co-Operation and Development (OECD) reference nanomaterials for these substances. If in vitro assays are performed with dosages that reflect effective in vivo dosages, the mechanisms of nanomaterial toxicity can be assessed. In early tiers of integrated approaches for testing and assessment, knowledge on mechanisms of toxicity serves to group nanomaterials thereby reducing the need for animal testing.
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Affiliation(s)
| | - Ursula G Sauer
- Scientific Consultancy – Animal Welfare, Neubiberg, Germany
| | | | - Jürgen Schnekenburger
- Biomedical Technology Centre of the Medical Faculty of Westphalian Wilhelms University Münster, Münster, Germany
| | - Martin Wiemann
- IBE R&D gGmbH Institute for Lung Health, Münster, Germany
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