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Singh P, Bhankar V, Kumar S, Kumar K. Biomass-derived carbon dots as significant biological tools in the medicinal field: A review. Adv Colloid Interface Sci 2024; 328:103182. [PMID: 38759449 DOI: 10.1016/j.cis.2024.103182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 05/19/2024]
Abstract
Early disease detection is crucial since it raises the likelihood of treatment and considerably lowers the cost of therapy. Therefore, the improvement of human life and health depends on the development of quick, efficient, and credible biosensing methods. For improving the quality of biosensors, distinct nanostructures have been investigated; among these, carbon dots have gained much interest because of their great performance. Carbon dots, the essential component of fluorescence nanoparticles, having outstanding chemical characteristics, superb biocompatibility, chemical inertness, low toxicity and potential optical characteristics have attracted the researchers from every corner of the globe. Several carbon dots applications have been thoroughly investigated in recent decade, from optoelectronics to biomedical investigations. This review study primarily emphasizes the recent advancements in the field of biomass-derived carbon dots-based drug delivery, gene delivery and bioimaging, and highlights achievements in two major areas: in vivo applications that involve carbon dots absorption in zebrafish and mice, tumour therapeutics, and imaging-guided drug delivery. Additionally, the possible advantages, difficulties, and future possibilities of using carbon dots for biological applications are also explored.
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Affiliation(s)
- Permender Singh
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat 131039, Haryana, India
| | - Vinita Bhankar
- Department of Biochemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India.
| | - Sandeep Kumar
- Department of Chemistry, J. C. Bose University of Science & Technology, YMCA, Faridabad 121006, Haryana, India
| | - Krishan Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat 131039, Haryana, India.
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2
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Karthikeyan S, Breznan D, Thomson EM, Blais E, Vincent R, Kumarathasan P. Concordance between In Vitro and In Vivo Relative Toxic Potencies of Diesel Exhaust Particles from Different Biodiesel Blends. TOXICS 2024; 12:290. [PMID: 38668513 PMCID: PMC11054440 DOI: 10.3390/toxics12040290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/29/2024]
Abstract
Diesel exhaust particles (DEPs) contribute to air pollution exposure-related adverse health impacts. Here, we examined in vitro, and in vivo toxicities of DEPs from a Caterpillar C11 heavy-duty diesel engine emissions using ultra-low-sulfur diesel (ULSD) and biodiesel blends (20% v/v) of canola (B20C), soy (B20S), or tallow-waste fry oil (B20T) in ULSD. The in vitro effects of DEPs (DEPULSD, DEPB20C, DEPB20S, and DEPB20T) in exposed mouse monocyte/macrophage cells (J774A.1) were examined by analyzing the cellular cytotoxicity endpoints (CTB, LDH, and ATP) and secreted proteins. The in vivo effects were assessed in BALB/c mice (n = 6/group) exposed to DEPs (250 µg), carbon black (CB), or saline via intratracheal instillation 24 h post-exposure. Bronchoalveolar lavage fluid (BALF) cell counts, cytokines, lung/heart mRNA, and plasma markers were examined. In vitro cytotoxic potencies (e.g., ATP) and secreted TNF-α were positively correlated (p < 0.05) with in vivo inflammatory potency (BALF cytokines, lung/heart mRNA, and plasma markers). Overall, DEPULSD and DEPB20C appeared to be more potent compared to DEPB20S and DEPB20T. These findings suggested that biodiesel blend-derived DEP potencies can be influenced by biodiesel sources, and inflammatory process- was one of the potential underlying toxicity mechanisms. These observations were consistent across in vitro and in vivo exposures, and this work adds value to the health risk analysis of cleaner fuel alternatives.
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Affiliation(s)
- Subramanian Karthikeyan
- Environmental Health Science and Research Bureau, Health Canada, 251, Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; (D.B.); (E.M.T.); (E.B.)
| | - Dalibor Breznan
- Environmental Health Science and Research Bureau, Health Canada, 251, Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; (D.B.); (E.M.T.); (E.B.)
| | - Errol M. Thomson
- Environmental Health Science and Research Bureau, Health Canada, 251, Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; (D.B.); (E.M.T.); (E.B.)
- Department of Biochemistry, Microbiology & Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Erica Blais
- Environmental Health Science and Research Bureau, Health Canada, 251, Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; (D.B.); (E.M.T.); (E.B.)
| | - Renaud Vincent
- Environmental Health Science and Research Bureau, Health Canada, 251, Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; (D.B.); (E.M.T.); (E.B.)
| | - Premkumari Kumarathasan
- Environmental Health Science and Research Bureau, Health Canada, 251, Sir Frederick Banting Driveway, Ottawa, ON K1A 0K9, Canada; (D.B.); (E.M.T.); (E.B.)
- Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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3
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Du Y, Chen Z, Hussain MI, Yan P, Zhang C, Fan Y, Kang L, Wang R, Zhang J, Ren X, Ge C. Evaluation of cytotoxicity and biodistribution of mesoporous carbon nanotubes (pristine/-OH/-COOH) to HepG2 cells in vitro and healthy mice in vivo. Nanotoxicology 2022; 16:895-912. [PMID: 36704847 DOI: 10.1080/17435390.2023.2170836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Mesoporous carbon nanotubes (mCNTs) hold great promise interests, owing to their superior nano-platform properties for biomedicine. To fully utilize this potential, the toxicity and biodistribution of pristine and surface-modified mCNTs (-OH/-COOH) should preferentially be addressed. The results of cell viability suggested that pristine mCNTs induced cell death in a concentration-dependent manner. As evidence of reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD), pristine mCNTs induced noticeable redox imbalance. 99mTc tracing data suggested that the cellular uptake of pristine mCNTs posed a concentrate-dependent and energy-dependent manner via macropinocytotic and clathrin-dependent pathways, and the main accumulated organs were lung, liver and spleen. With OH modification, the ROS generation, MDA deposition and SOD consumption were evidently reduced compared with the pristine mCNTs at 24/48 h high-dose exposure. With COOH modification, the modified mCNTs only showed a significant difference in SOD consumption at 24/48 h exposure, but there was no significant difference in the measurement of ROS and MDA. The internalization mechanism and organ distribution of modified mCNTs were basically invariant. Together, our study provides evidence that mCNTs and the modified mCNTs all could induce oxidative damage and thereby impair cells. 99mTc-mCNTs can effectively trace the distribution of nanotubes in vivo.
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Affiliation(s)
- Yujing Du
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Zhipei Chen
- Institute of Nuclear Energy and New Energy System Materials, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China
| | - M Irfan Hussain
- Institute of Nuclear Energy and New Energy System Materials, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Ping Yan
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Chunli Zhang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Yan Fan
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Lei Kang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Rongfu Wang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China.,Department of Nuclear Medicine, Peking University International Hospital, Beijing, China
| | - Jianhua Zhang
- Department of Nuclear Medicine, Peking University First Hospital, Beijing, China
| | - Xiaona Ren
- Institute of Nuclear Energy and New Energy System Materials, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Changchun Ge
- Institute of Nuclear Energy and New Energy System Materials, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China
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4
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Chetyrkina MR, Fedorov FS, Nasibulin AG. In vitro toxicity of carbon nanotubes: a systematic review. RSC Adv 2022; 12:16235-16256. [PMID: 35733671 PMCID: PMC9152879 DOI: 10.1039/d2ra02519a] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/19/2022] [Indexed: 12/20/2022] Open
Abstract
Carbon nanotube (CNT) toxicity-related issues provoke many debates in the scientific community. The controversial and disputable data about toxicity doses, proposed hazard effects, and human health concerns significantly restrict CNT applications in biomedical studies, laboratory practices, and industry, creating a barrier for mankind in the way of understanding how exactly the material behaves in contact with living systems. Raising the toxicity question again, many research groups conclude low toxicity of the material and its potential safeness at some doses for contact with biological systems. To get new momentum for researchers working on the intersection of the biological field and nanomaterials, i.e., CNT materials, we systematically reviewed existing studies with in vitro toxicological data to propose exact doses that yield toxic effects, summarize studied cell types for a more thorough comparison, the impact of incubation time, and applied toxicity tests. Using several criteria and different scientific databases, we identified and analyzed nearly 200 original publications forming a "golden core" of the field to propose safe doses of the material based on a statistical analysis of retrieved data. We also differentiated the impact of various forms of CNTs: on a substrate and in the form of dispersion because in both cases, some studies demonstrated good biocompatibility of CNTs. We revealed that CNTs located on a substrate had negligible impact, i.e., 90% of studies report good viability and cell behavior similar to control, therefore CNTs could be considered as a prospective conductive substrate for cell cultivation. In the case of dispersions, our analysis revealed mean values of dose/incubation time to be 4-5 μg mL-1 h-1, which suggested the material to be a suitable candidate for further studies to get a more in-depth understanding of its properties in biointerfaces and offer CNTs as a promising platform for fundamental studies in targeted drug delivery, chemotherapy, tissue engineering, biosensing fields, etc. We hope that the present systematic review will shed light on the current knowledge about CNT toxicity, indicate "dark" spots and offer possible directions for the subsequent studies based on the demonstrated here tabulated and statistical data of doses, cell models, toxicity tests, viability, etc.
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Affiliation(s)
| | - Fedor S Fedorov
- Skolkovo Institute of Science and Technology Nobel Str. 3 143026 Moscow Russia
| | - Albert G Nasibulin
- Skolkovo Institute of Science and Technology Nobel Str. 3 143026 Moscow Russia
- Aalto University FI-00076 15100 Espoo Finland
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5
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Far-reaching advances in the role of carbon nanotubes in cancer therapy. Life Sci 2020; 257:118059. [PMID: 32659368 DOI: 10.1016/j.lfs.2020.118059] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/27/2020] [Accepted: 07/02/2020] [Indexed: 12/16/2022]
Abstract
Cancer includes a group of diseases involving unregulated cell growth with the potential to invade or expand to other parts of the body, resulting in an estimate of 9.6 million deaths worldwide in 2018. Manifold studies have been conducted to design more efficacious techniques for cancer therapy due to the inadequacy of conventional treatments including chemotherapy, surgery, and radiation therapy. With the advances in the biomedical applications of nanotechnology-based systems, nanomaterials have gained increasing attention as promising vehicles for targeted cancer therapy and optimizing treatment outcomes. Owing to their outstanding thermal, electrical, optical and chemical properties, carbon nanotubes (CNTs) have been profoundly studied to explore the various perspectives of their application in cancer treatment. The current study aims to review the role of CNTs whether as a carrier or mediator in cancer treatment for enhancing the efficacy as well as the specificity of therapy and reducing adverse side effects. This comprehensive review indicates that CNTs have the capability to be the next generation nanomaterials to actualize noninvasive targeted eradication of tumors. However, further studies are needed to evaluate the consequences of their biomedical application before the transition into clinical trials, since possible adverse effects of CNTs on biological systems have not been clearly understood.
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Azari MR, Mohammadian Y, Pourahmad J, Khodagholi F, Mehrabi Y. Additive toxicity of Co-exposure to pristine multi-walled carbon nanotubes and benzo α pyrene in lung cells. ENVIRONMENTAL RESEARCH 2020; 183:109219. [PMID: 32085994 DOI: 10.1016/j.envres.2020.109219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 02/01/2020] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
The Mixture exposure to pristine multi-walled carbon nanotubes (P-MWCNTs) and polycyclic aromatic hydrocarbons (PAHs) such as benzo α pyrene (BaP) in the environment is inevitable. Assessment toxicity of P-MWCNTs and BaP individually may not provide sufficient toxicological information. The objective of this work is to investigate the combined toxicity of P-MWCNTs and BaP in human epithelial lung cells (A549). The physico-chemical properties of P-MWCNTs were determined suing analytical instruments. The toxicity of P-MWCNTs and BaP on A549 lung cells individually or combined were assessed. For toxicity assessment, cell viability, ROS generation, oxidative DNA damage, and apoptosis experiments were conducted. The results of this study demonstrated that P-MWCNTs and BaP individually reduced cell viability in A549 lung cells, and oxidative stress was as the possible mechanism of cytotoxicity. The co-exposure to P-MWCNTs and BaP enhanced the cytotoxicity compared to exposure to P-MWCNTs and BaP individually, but not statistically significant. The two-factorial analysis demonstrated an additive toxicity interaction for co-exposure to P-MWCNTs and BaP. The complicated toxicity interaction among BaP with fibers and metal impurities of P-MWCNTS could be probable reasons for additive toxicity interaction. Results of this study could be helpful as the basis for future studies and risk assessment of co-exposure to MWCNTs and PAHs.
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Affiliation(s)
- Mansour Rezazadeh Azari
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Mohammadian
- Department of Occupational Health Engineering, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Jalal Pourahmad
- Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yadollah Mehrabi
- School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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7
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Yuan X, Nie W, He Z, Yang J, Shao B, Ma X, Zhang X, Bi Z, Sun L, Liang X, Tie Y, Liu Y, Mo F, Xie D, Wei Y, Wei X. Carbon black nanoparticles induce cell necrosis through lysosomal membrane permeabilization and cause subsequent inflammatory response. Theranostics 2020; 10:4589-4605. [PMID: 32292516 PMCID: PMC7150486 DOI: 10.7150/thno.34065] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 01/29/2020] [Indexed: 02/05/2023] Open
Abstract
Rationale: The adverse health effects of nano-particulate pollutants have attracted much attention in recent years. Carbon nanomaterials are recognized as risk factors for prolonged inflammatory responses and diffuse alveolar injury. Previous research indicated a central role of alveolar macrophages in the pathogenesis of particle-related lung disease, but the underlying mechanism remains largely unknown. Methods: C57BL/6 mice were intratracheally instilled with carbon black nanoparticles (CBNPs). Cell necrosis and the infiltrated neutrophils in the lungs were detected by flow cytometry. Release of mitochondria was observed with Mito Tracker and mitochondrial DNA (mtDNA) was quantified by qPCR via Taqman probes. TLR9-p38 MAPK signaling pathway was detected by Western blotting. The production of lipid chemoattractant leukotriene B4 (LTB4) in the supernatant and bronchoalveolar lavage fluid (BALF) was quantitated using an enzyme immunoassay (EIA). Results: In the present study, we found that a single instillation of CBNPs induced neutrophil influx in C57BL/6 mice as early as 4 h post-exposure following the rapid appearance of cell damage indicators in BALF at 30 min. Macrophages exposed to CBNPs showed necrotic features and were characterized by lysosome rupture, cathepsin B release, reactive oxygen species generation, and reduced intracellular ATP level. Necrosis was partly inhibited by a specific lysosomal cathepsin B inhibitor CA074 Me. Further analyses suggested that the resulting leakage of mtDNA from the necrotic cells activated neutrophils and triggered severe inflammation in vivo. Pulmonary neutrophilic inflammation induced by mtDNA was reduced in TLR9-/- mice. Additionally, mtDNA induced LTB4 production from macrophages, which may contribute to neutrophil recruitment. Conclusion: We demonstrated here that CBNPs induce acute cell necrosis through lysosomal rupture and that mtDNA released from necrotic cells functions as a key event mediating pulmonary neutrophilic inflammation. This study described a novel aspect of the pathogenesis of particle-induced inflammatory response and provided a possible therapeutic target for the regulation of inflammation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, PR China
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8
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Skuland T, Maslennikova T, Låg M, Gatina EM, Serebryakova MK, Trulioff AS, Kudryavtsev IV, Klebnikova N, Kruchinina I, Schwarze PE, Refsnes M. Synthetic hydrosilicate nanotubes induce low pro-inflammatory and cytotoxic responses compared to natural chrysotile in lung cell cultures. Basic Clin Pharmacol Toxicol 2019; 126:374-388. [PMID: 31628893 DOI: 10.1111/bcpt.13341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/15/2019] [Indexed: 01/11/2023]
Abstract
Asbestos (Mg-hydrosilicate; chrysotile) is known to cause pleural diseases, pulmonary fibrosis and lung cancers, via mechanisms strongly depending on diameter-length ratio and possibly metal content. A critical question is whether synthetic hydrosilicate nanotubes (NTs) of short length possess little toxic potential compared to chrysotile. Five Mg- and two NiNTs of different lengths were assessed for cytotoxicity and pro-inflammatory responses in THP-1 macrophages and human bronchial epithelial lung cells (HBEC3-KT), in comparison with chrysotile. NT lengths/diameters were characterized by TEM, surface areas by BET- and BJH analysis, and chemical composition by XRD. The different Mg- and NiNTs induced little cytotoxicity in both cell models, in contrast to chrysotile that induced marked cytotoxicity. The two longest synthetic MgNTs, with median lengths of 3 and 5 µm, induced increased levels of pro-inflammatory cytokines in THP-1 macrophages, but much less than chrysotile (median length 15 µm) and silica nanoparticles (Si10). The shortest NTs did not induce any increase in cytokines. In HBEC3-KT cells, all synthetic NTs induced no or only small changes in cytokine responses, in contrast to chrysotile and Si10. The synthetic NTs induced lower TGF-β responses than chrysotile in both cell models. In conclusion, the pro-inflammatory responses were associated with the length of synthetic hydrosilicate NTs in THP-1 macrophages, but not in HBEC3-KT cells. Notably, the shortest NTs showed no or little pro-inflammatory activity or cytotoxicity in both cell models. Such a safety by design approach is important for development of new materials being candidates for various new products.
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Affiliation(s)
- Tonje Skuland
- Department of Air Pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Tatiana Maslennikova
- Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Marit Låg
- Department of Air Pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - El Mira Gatina
- Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | | | - Andrey S Trulioff
- Institute of Experimental Medicine (FSBSI "IEM"), St. Petersburg, Russia
| | - Igor V Kudryavtsev
- Institute of Experimental Medicine (FSBSI "IEM"), St. Petersburg, Russia.,Far Eastern Federal University (FEFU), Vladivostok, Russia
| | - Natalia Klebnikova
- Occupational Pathology and Human Ecology (RIHOPHE), Research Institute of Hygiene, St. Petersburg, Russia
| | - Irina Kruchinina
- Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg, Russia
| | - Per E Schwarze
- Department of Air Pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Magne Refsnes
- Department of Air Pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
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Tien CY, Li JP, Han D, Li Z, Fu PK, Chen JK, Tsai CJ. Development of a Novel Shallow Liquid Interface Exposure System for MWCNT Toxicity Assessment. Chem Res Toxicol 2019; 32:1925-1939. [PMID: 31469549 DOI: 10.1021/acs.chemrestox.9b00067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Increasing applications of multiwalled carbon nanotubes (MWCNT) lead to significant occupational exposure and potential health concerns. Toxicity of MWCNT should be carefully elucidated since the conventional (CON) method with fully immersed condition fails to mimic the air-liquid interface (ALI) in airways. Additionally, quantification of MWCNT in cells was a real challenge. Currently available ALI exposure devices are costly, posing problems to conducting in vitro evaluations for emerging nanomaterials. A novel system, consisting of a shaker fluidized-bed atomizer (SFA) and electrostatic shallow liquid interface (ESLI) exposure chamber, has been developed for investigating nanotoxicity of well-dispersed pristine-MWCNT (pMWCNT) and carboxylized-MWCNT (cMWCNT). After 24-h exposure, LDH, MCP-1, IL-1β, IL-6, and TNF-α releases were determined, and cell uptakes were quantified according to the molybdenum content in cells. Biological responses triggered by SLI exposure are obviously more sensitive compared with those caused by CON exposure at equivalent doses. Exposure dose-dependent release of LDH and IL-6 was highlighted in A549 cells, indicating higher cytotoxicity and inflammatory responses of cMWCNT attributed to its shorter length, smaller size, and higher cell uptake. Cell-associated dose-dependent release of LDH and IL-6 was highlighted in RAW264.7 cells, revealing the higher adverse health risk of pMWCNT due to frustrated phagocytosis and its much higher molybdenum content. These results suggest that inherent characteristics of cells and distinct physicochemical properties of pMWCNT and cMWCNT lead to either exposure dose-dependent or cell-associated dose-dependent responses. Notably, the SLI is superior to the CON exposure method and well suited for nanotoxicity assessment of different MWCNTs.
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Affiliation(s)
- Chi-Yu Tien
- Institute of Environmental Engineering , National Chiao Tung University , 1001 University Road , Hsinchu 30010 , Taiwan
| | - Jui-Ping Li
- Institute of Biomedical Engineering and Nanomedicine , National Health Research Institutes , 35 Keyan Road , Miaoli 35053 , Taiwan
| | - Ding Han
- Institute of Environmental Engineering , National Chiao Tung University , 1001 University Road , Hsinchu 30010 , Taiwan
| | - Ziyi Li
- School of Energy and Environmental Engineering , University of Science and Technology Beijing , Beijing 100083 , China
| | - Pin-Kuei Fu
- Department of Critical Care Medicine , Taichung Veterans General Hospital , Taichung 40705 , Taiwan.,College of Human Science and Social Innovation , Hungkuang University , Taichung 43302 , Taiwan.,College of Science , Tunghai University , Taichung 40704 , Taiwan
| | - Jen-Kun Chen
- Institute of Biomedical Engineering and Nanomedicine , National Health Research Institutes , 35 Keyan Road , Miaoli 35053 , Taiwan
| | - Chuen-Jinn Tsai
- Institute of Environmental Engineering , National Chiao Tung University , 1001 University Road , Hsinchu 30010 , Taiwan
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10
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Chen Q, Luo XS, Chen Y, Zhao Z, Hong Y, Pang Y, Huang W, Wang Y, Jin L. Seasonally varied cytotoxicity of organic components in PM 2.5 from urban and industrial areas of a Chinese megacity. CHEMOSPHERE 2019; 230:424-431. [PMID: 31112865 DOI: 10.1016/j.chemosphere.2019.04.226] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/19/2019] [Accepted: 04/30/2019] [Indexed: 05/26/2023]
Abstract
The atmospheric fine particulate matters (PM2.5) induce significant negative effects on human health, such as in the form of oxidative stress and pro-inflammatory response. Organic pollutants are important harmful and toxic compositions in PM2.5, risks of which usually show temporal and spatial variations. To investigate the toxic effects of airborne organic pollutants on human lung epithelial cells A549, the PM2.5 samples were collected monthly from both urban and industrial areas during a whole year in Nanjing, eastern China. After exposure to organic components extracted from these PM2.5, the cell viability, lactate dehydrogenase content, oxidative stress index level and inflammatory factor expression level were measured. Supported by the concentrations of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes, results showed that, organic components of PM2.5 from cold season (winter and spring) typically influenced cell membrane, cell oxidation and inflammatory damage, while the urban samples of warm season (summer and autumn) impacted cell viability more prominently. Spatially, the toxicity of samples from industrial sources was generally stronger than that from urban source, but urban samples induced much stronger damage to cell membranes than industrial one. The correlations between the PAHs, n-alkanes contents and toxicity parameters indicated that, the airborne organic components derived from motor vehicle exhaust and coal combustion were possibly the key toxic sources.
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Affiliation(s)
- Qi Chen
- International Center for Ecology, Meteorology, and Environment, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Xiao-San Luo
- International Center for Ecology, Meteorology, and Environment, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Yan Chen
- International Center for Ecology, Meteorology, and Environment, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Zhen Zhao
- International Center for Ecology, Meteorology, and Environment, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Youwei Hong
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Yuting Pang
- International Center for Ecology, Meteorology, and Environment, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Weijie Huang
- International Center for Ecology, Meteorology, and Environment, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Yi Wang
- Jiangsu Meteorological Observatory, Nanjing, 210008, China
| | - Ling Jin
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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11
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Liu Q, Liggio J, Breznan D, Thomson EM, Kumarathasan P, Vincent R, Li K, Li SM. Oxidative and Toxicological Evolution of Engineered Nanoparticles with Atmospherically Relevant Coatings. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3058-3066. [PMID: 30794751 DOI: 10.1021/acs.est.8b06879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The health impacts associated with engineered nanoparticles (ENPs) released into the atmosphere have not been adequately assessed. Such impacts could potentially arise from the toxicity associated with condensable atmospheric secondary organic material (SOM), or changes in the SOM composition induced by ENPs. Here, these possibilities are evaluated by investigating the oxidative and toxicological evolution of TiO2 and SiO2 nanoparticles which have been coated with SOM from the O3 or OH initiated oxidation of α-pinene. It was found that pristine SiO2 particles were significantly more cytotoxic compared to pristine TiO2 particles. TiO2 in the dark or under UV irradiation catalytically reacted with the SOM, increasing its O/C by up to 55% over photochemically inert SiO2 while having negligible effects on the overall cytotoxicity. Conversely, the cytotoxicity associated with SiO2 coated with SOM was markedly suppressed (by a factor of 9, at the highest exposure dose) with both increased SOM coating thickness and increased photochemical aging. These suppressing effects (organic coating and photo-oxidation of organics) were attributed to a physical hindrance of SiO2-cell interactions by the SOM and enhanced SOM viscosity and hydrophilicity with continued photo-oxidation, respectively. These findings highlight the importance of atmospheric processes in altering the cytotoxicity of ENPs.
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Affiliation(s)
- Qifan Liu
- Atmospheric Science and Technology Directorate , Science and Technology Branch, Environment Canada , 4905 Dufferin Street , Toronto , Ontario M3H 5T4 , Canada
| | - John Liggio
- Atmospheric Science and Technology Directorate , Science and Technology Branch, Environment Canada , 4905 Dufferin Street , Toronto , Ontario M3H 5T4 , Canada
| | - Dalibor Breznan
- Inhalation Toxicology Laboratory , Healthy Environments and Consumer Safety Branch, Health Canada , 0803C Tunney's Pasture , Ottawa , Ontario K1A 0K9 , Canada
| | - Errol M Thomson
- Inhalation Toxicology Laboratory , Healthy Environments and Consumer Safety Branch, Health Canada , 0803C Tunney's Pasture , Ottawa , Ontario K1A 0K9 , Canada
| | - Premkumari Kumarathasan
- Analytical Biochemistry and Proteomics Laboratory , Healthy Environments and Consumer Safety Branch, Health Canada , 0803C Tunney's Pasture , Ottawa , Ontario K1A 0K9 , Canada
| | - Renaud Vincent
- Inhalation Toxicology Laboratory , Healthy Environments and Consumer Safety Branch, Health Canada , 0803C Tunney's Pasture , Ottawa , Ontario K1A 0K9 , Canada
| | - Kun Li
- Atmospheric Science and Technology Directorate , Science and Technology Branch, Environment Canada , 4905 Dufferin Street , Toronto , Ontario M3H 5T4 , Canada
| | - Shao-Meng Li
- Atmospheric Science and Technology Directorate , Science and Technology Branch, Environment Canada , 4905 Dufferin Street , Toronto , Ontario M3H 5T4 , Canada
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12
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Mitochondrial Impairment Induced by Sub-Chronic Exposure to Multi-Walled Carbon Nanotubes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16050792. [PMID: 30841488 PMCID: PMC6427246 DOI: 10.3390/ijerph16050792] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 02/28/2019] [Indexed: 12/17/2022]
Abstract
Human exposure to carbon nanotubes (CNTs) can cause health issues due to their chemical-physical features and biological interactions. These nanostructures cause oxidative stress, also due to endogenous reactive oxygen species (ROS) production, which increases following mitochondrial impairment. The aim of this in vitro study was to assess the health effects, due to mitochondrial dysfunction, caused by a sub-chronic exposure to a non-acutely toxic dose of multi walled CNTs (raw and functionalised). The A549 cells were exposed to multi-walled carbon nanotubes (MWCNTs) (2 µg mL-1) for 36 days. Periodically, cellular dehydrogenases, pyruvate dehydrogenase kinase 1 (PDK1), cytochrome c release, permeability transition pore (mPTP) opening, transmembrane potential (Δψ m), apoptotic cells, and intracellular ROS were measured. The results, compared to untreated cells and to positive control formed by cells treated with MWCNTs (20 µg mL-1), highlighted the efficiency of homeostasis to counteract ROS overproduction, but a restitutio ad integrum of mitochondrial functionality was not observed. Despite the tendency to restore, the mitochondrial impairment persisted. Overall, the results underlined the tissue damage that can arise following sub-chronic exposure to MWCNTs.
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Radan M, Dianat M, Badavi M, Mard SA, Bayati V, Goudarzi G. In vivo and in vitro evidence for the involvement of Nrf2-antioxidant response element signaling pathway in the inflammation and oxidative stress induced by particulate matter (PM10): the effective role of gallic acid. Free Radic Res 2019; 53:210-225. [PMID: 30585515 DOI: 10.1080/10715762.2018.1563689] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Environmental pollution is one of the risk factors for respiratory diseases. The nuclear factor erythroid 2-related factor 2 (Nrf2) is the major mechanisms contributing to cellular defense against oxidative damage. Gallic acid (GA) is regarded as potent anti-inflammatory and antioxidant agents. The aim was to evaluate the role of Nrf2 pathway in particulate matter (PM10) exposure on lung and epithelial cells with an emphasis on the role of GA. In in vivo part, the rats were divided as control, GA (30 mg/kg), particulate matter (PM) (0.5, 2.5, and 5 mg/kg), and PM + GA. In in vitro study, the cells were divided as control, PM10 (100, 250, and 500 µg/ml), GA (50 µmol/L) and PM10+GA. Inflammation, oxidative stress and Nrf2-pathway factors were assessed. PM10 groups showed a considerable increase in the epithelial permeability and inflammatory parameters. We also found a significant decrease in the expression of Nrf2 and its up-stream regulators genes. Accordingly, the biosynthesis of glutathione (GSH) and other antioxidant activities significantly decreased. Gallic acid was identified to restore the antioxidant status to the normal levels. Our findings approved that Nrf2 is involved in PM10-induced oxidative damages and showed that Nrf2 activation by natural agents could ameliorate respiratory injuries induced by PM10.
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Affiliation(s)
- Maryam Radan
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mahin Dianat
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Mohammad Badavi
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Seyyed Ali Mard
- a Faculty of Medicine, Department of Physiology , Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Vahid Bayati
- b Faculty of Medicine , Cellular and Molecular Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
| | - Gholamreza Goudarzi
- c Health Faculty, Department of Environmental Health Engineering , Ahvaz Jundishapur University of Medical Sciences , Ahvaz , Iran
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Breznan D, Das DD, MacKinnon-Roy C, Bernatchez S, Sayari A, Hill M, Vincent R, Kumarathasan P. Physicochemical Properties Can Be Key Determinants of Mesoporous Silica Nanoparticle Potency in Vitro. ACS NANO 2018; 12:12062-12079. [PMID: 30475590 DOI: 10.1021/acsnano.8b04910] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanoforms of mesoporous silica (mSiNPs) are increasingly applied in medicine, imaging, energy storage, catalysis, biosensors, and bioremediation. The impact of their physicochemical properties on health and the environment remain to be elucidated. In this work, newly synthesized mesoporous silica (sizes: 25, 70, 100, 170, and 600 nm; surface functionalization: pristine, C3-, and C11-COOH moieties) were assessed for cytotoxicity and induction of inflammatory responses in vitro (A549, THP-1, J774A.1 cells). All toxicity end points were integrated to obtain simple descriptors of biological potencies of these mSiNPs. The findings indicate that mSiNPs are less bioactive than the nonporous reference SiNP used in this study. The C3-COOH-modified mSiNPs were generally less cytotoxic than their pristine and C11-modified counterparts in the nanorange (≤100 nm). Carboxyl-modified mSiNPs affected inflammatory marker release across all sizes with cell-type specificity, suggesting a potential for immunomodulatory effects. Surface area, size, extent of agglomeration, ζ-potential, and surface modification appeared to be important determinants of cytotoxicity of mSiNPs based on association tests. Pathway analysis identified particle and cell-type-specific alteration of cellular pathways and functions by mSiNPs. The integration of exposure-related biological responses of multiple cell lines to mSiNPs allowed for a comprehensive evaluation of the impact of physicochemical factors on their toxicity characteristics. The integrated multilevel toxicity assessment approach can be valuable as a hazard screening tool for safety evaluations of emerging nanomaterials for regulatory purpose.
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Affiliation(s)
| | | | | | | | - Abdelhamid Sayari
- Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , Ontario K1N 6N5 , Canada
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Chen Y, Luo XS, Zhao Z, Chen Q, Wu D, Sun X, Wu L, Jin L. Summer-winter differences of PM 2.5 toxicity to human alveolar epithelial cells (A549) and the roles of transition metals. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 165:505-509. [PMID: 30223162 DOI: 10.1016/j.ecoenv.2018.09.034] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/12/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
Atmospheric fine particulate matters (PM2.5) induce adverse human health effects through inhalation, and the harmful effects of PM2.5 are determined not only by its air concentrations, but also by the particle components varied temporally. To investigate seasonal differences of the aerosol toxicity effects including cell viability and membrane damage, cell oxidative stress and responses of inflammatory cytokines, the human lung epithelial cells (A549) were exposed to PM2.5 samples collected in both summer and winter by the in vitro toxicity bioassays. Toxicological results showed that, the PM2.5 led to the cell viability decrease, cell membrane injury, oxidative stress level increase and inflammatory responses in a dose-dependent manner. Temporally, the cytotoxicity of winter PM2.5 was higher than summer of this studied industrial area of Nanjing, China. According to the different contents of heavy metals accumulated in PM2.5, the transition metals such as Cu might be an important contributor to the aerosol cell toxicity.
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Affiliation(s)
- Yan Chen
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Xiao-San Luo
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China.
| | - Zhen Zhao
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Qi Chen
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Di Wu
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xue Sun
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Lichun Wu
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Ling Jin
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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16
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Chen M, Zhou S, Zhu Y, Sun Y, Zeng G, Yang C, Xu P, Yan M, Liu Z, Zhang W. Toxicity of carbon nanomaterials to plants, animals and microbes: Recent progress from 2015-present. CHEMOSPHERE 2018; 206:255-264. [PMID: 29753288 DOI: 10.1016/j.chemosphere.2018.05.020] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/17/2018] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
Nanotechnology has gained significant development over the past decades, which led to the revolution in the fields of information, medicine, industry, food security and aerospace aviation. Nanotechnology has become a new research hot spot in the world. However, we cannot only pay attention to its benefit to the society and economy, because its wide use has been bringing potential environmental and health effects that should be noticed. This paper reviews the recent progress from 2015-present in the toxicity of various carbon nanomaterials to plants, animals and microbes, and lays the foundation for further study on the environmental and ecological risks of carbon nanomaterials.
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Affiliation(s)
- Ming Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Shuang Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yi Zhu
- School of Environmental Science & Engineering, Hubei Polytechnic University, Huangshi 435003, PR China
| | - Yingzhu Sun
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Chunping Yang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Ming Yan
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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Kaboudin B, Saghatchi F, Kazemi F, Akbari-Birgani S. A Novel Magnetic Carbon Nanotubes Functionalized with Pyridine Groups: Synthesis, Characterization and Their Application as an Efficient Carrier for Plasmid DNA and Aptamer. ChemistrySelect 2018. [DOI: 10.1002/slct.201800708] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Babak Kaboudin
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS), Gava Zang; Zanjan 45137-66731 Iran
- Center for Research in Basic Sciences and Contemporary Technologies
| | - Fatemeh Saghatchi
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS), Gava Zang; Zanjan 45137-66731 Iran
| | - Foad Kazemi
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS), Gava Zang; Zanjan 45137-66731 Iran
| | - Shiva Akbari-Birgani
- Center for Research in Basic Sciences and Contemporary Technologies
- Faculty of Biological Sciences; Institute for Advanced Studies in Basic Sciences (IASBS), GavaZang; Zanjan 45137-66731 Iran
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18
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Ariganello MB, Das DD, Breznan D, MacKinnon-Roy C, Elisma F, Khanchi A, Vincent R, Kumarathasan P. A matrix-assisted laser desorption ionization-time-of-flight-time-of-flight-mass spectrometry-based toxicoproteomic screening method to assess in vitro particle potencies. J Appl Toxicol 2018; 38:1302-1315. [PMID: 29845627 PMCID: PMC6220844 DOI: 10.1002/jat.3642] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 12/13/2022]
Abstract
Knowledge of biological reactivity and underlying toxicity mechanisms of airborne particulate matter (PM) is central to the characterization of the risk associated with these pollutants. An integrated screening platform consisting of protein profiling of cellular responses and cytotoxic analysis was developed in this study for the estimation of PM potencies. Mouse macrophage (J774A.1) and human lung epithelial cells (A549) were exposed in vitro to Ottawa urban particles (EHC6802) and two reference mineral particles (TiO2 and SiO2). Samples from the in vitro exposure experiment were tested following an integrated classical cytotoxicity/toxicoproteomic assessment approach for cellular viability (CellTiter Blue®, lactate dehydrogenase) and proteomic analyses. Cellular proteins were pre‐fractionated by molecular weight cut‐off filtration, digested enzymatically and were analyzed by matrix‐assisted laser desorption ionization–time‐of‐flight–time‐of‐flight–mass spectrometry for protein profiling and identification. Optimization of detergent removal, pre‐fractionation strategies and enzymatic digestion procedures led to increased tryptic peptide (m/z) signals with reduced sample processing times, for small total protein contents. Proteomic analyses using this optimized procedure identified statistically significant (P < 0.05) PM dose‐dependent changes at the molecular level. Ranking of PM potencies based on toxicoproteomic analysis were in line with classical cytotoxicity potency‐based ranking. The high content toxicoproteomic approach exhibited the potential to add value to risk characterization of environmental PM exposures by complementing and validating existing cytotoxicity testing strategies. To estimate in vitro potencies of ambient air particles we developed an integrated screening platform that enabled protein profiling of cellular responses and cytotoxic analyses. Extensive optimization of the toxicoproteomic analysis was carried out. Cellular proteomic changes were consistent with cytotoxicity findings. The integration of proteomic and cytotoxicity analyses results provided insight into particulate matter cytotoxic reactivity‐related mechanistic information at the molecular level.
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Affiliation(s)
- Marianne B Ariganello
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Dharani D Das
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Dalibor Breznan
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Christine MacKinnon-Roy
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Fred Elisma
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Aziz Khanchi
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Renaud Vincent
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
| | - Prem Kumarathasan
- Environmental Health Sciences and Research Bureau, HECSB, Health Canada, Ottawa, ON, Canada, K1A 0K9
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Li Y, Cao J. The impact of multi-walled carbon nanotubes (MWCNTs) on macrophages: contribution of MWCNT characteristics. SCIENCE CHINA-LIFE SCIENCES 2018; 61:1333-1351. [DOI: 10.1007/s11427-017-9242-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/12/2018] [Indexed: 12/31/2022]
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20
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Mohammadian Y, Rezazadeh Azari M, Peirovi H, Khodagholi F, Pourahmad J, Omidi M, Mehrabi Y, Rafieepour A. Combined toxicity of multi-walled carbon nanotubes and benzo [a] pyrene in human epithelial lung cells. TOXIN REV 2018. [DOI: 10.1080/15569543.2018.1442348] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Yousef Mohammadian
- School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mansour Rezazadeh Azari
- Safety Promotion and Prevention of Injuries Research Center and School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Habibollah Peirovi
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jalal Pourahmad
- Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meisam Omidi
- Department of Tissue Engineering and Applied Cell Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yadollah Mehrabi
- Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Athena Rafieepour
- School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Manshian BB, Poelmans J, Saini S, Pokhrel S, Grez JJ, Himmelreich U, Mädler L, Soenen SJ. Nanoparticle-induced inflammation can increase tumor malignancy. Acta Biomater 2018; 68:99-112. [PMID: 29274476 DOI: 10.1016/j.actbio.2017.12.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 12/12/2017] [Accepted: 12/15/2017] [Indexed: 11/15/2022]
Abstract
Nanomaterials, such as aluminum oxide, have been regarded with high biomedical promise as potential immune adjuvants in favor of their bulk counterparts. For pathophysiological conditions where elevated immune activity already occurs, the contribution of nanoparticle-activated immune reactions remains unclear. Here, we investigated the effect of spherical and wire-shaped aluminum oxide nanoparticles on primary splenocytes and observed a clear pro-inflammatory effect of both nanoparticles, mainly for the high aspect ratio nanowires. The nanoparticles resulted in a clear activation of NLRP3 inflammasome, and also secreted transforming growth factor β. When cancer cells were exposed to these cytokines, this resulted in an increased level of epithelial-to-mesenchymal-transition, a hallmark for cancer metastasis, which did not occur when the cancer cells were directly exposed to the nanoparticles themselves. Using a syngeneic tumor model, the level of inflammation and degree of lung metastasis were significantly increased when the animals were exposed to the nanoparticles, particularly for the nanowires. This effect could be abrogated by treating the animals with inflammatory inhibitors. Collectively, these data indicate that the interaction of nanoparticles with immune cells can have secondary effects that may aggravate pathophysiological conditions, such as cancer malignancy, and conditions must be carefully selected to finely tune the induced aspecific inflammation into cancer-specific antitumor immunity. STATEMENT OF SIGNIFICANCE Many different types of nanoparticles have been shown to possess immunomodulatory properties, depending on their physicochemical parameters. This can potentially be harnessed as a possible antitumor therapy. However, in the current work we show that inflammation elicited by nanomaterials can have grave effects in pathophysiological conditions, where non-specific inflammation was found to increase cancer cell mobility and tumor malignancy. These data show that immunomodulatory properties of nanomaterials must be carefully controlled to avoid any undesired side-effects.
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Affiliation(s)
- Bella B Manshian
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Jennifer Poelmans
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Shweta Saini
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Suman Pokhrel
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Julio Jiménez Grez
- Organ Systems, Department of Development and Regeneration, KU Leuven, Herestraat 49, B3000 Leuven, Belgium; Department of Obstetrics and Gynaecology, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Uwe Himmelreich
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium
| | - Lutz Mädler
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Stefaan J Soenen
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, Herestraat 49, B3000 Leuven, Belgium.
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22
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Berger E, Breznan D, Stals S, Jasinghe VJ, Gonçalves D, Girard D, Faucher S, Vincent R, Thierry AR, Lavigne C. Cytotoxicity assessment, inflammatory properties, and cellular uptake of Neutraplex lipid-based nanoparticles in THP-1 monocyte-derived macrophages. Nanobiomedicine (Rij) 2017; 4:1849543517746259. [PMID: 29942393 PMCID: PMC6009795 DOI: 10.1177/1849543517746259] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/01/2017] [Indexed: 12/31/2022] Open
Abstract
Current antiretroviral drugs used to prevent or treat human immunodeficiency virus type 1 (HIV-1) infection are not able to eliminate the virus within tissues or cells where HIV establishes reservoirs. Hence, there is an urgent need to develop targeted delivery systems to enhance drug concentrations in these viral sanctuary sites. Macrophages are key players in HIV infection and contribute significantly to the cellular reservoirs of HIV because the virus can survive for prolonged periods in these cells. In the present work, we investigated the potential of the lipid-based Neutraplex nanosystem to deliver anti-HIV therapeutics in human macrophages using the human monocyte/macrophage cell line THP-1. Neutraplex nanoparticles as well as cationic and anionic Neutraplex nanolipoplexes (Neutraplex/small interfering RNA) were prepared and characterized by dynamic light scattering. Neutraplex nanoparticles showed low cytotoxicity in CellTiter-Blue reduction and lactate dehydrogenase release assays and were not found to have pro-inflammatory effects. In addition, confocal studies showed that the Neutraplex nanoparticles and nanolipoplexes are rapidly internalized into THP-1 macrophages and that they can escape the late endosome/lysosome compartment allowing the delivery of small interfering RNAs in the cytoplasm. Furthermore, HIV replication was inhibited in the in vitro TZM-bl infectivity assay when small interfering RNAs targeting CXCR4 co-receptor was delivered by Neutraplex nanoparticles compared to a random small interfering RNA sequence. This study demonstrates that the Neutraplex nanosystem has potential for further development as a delivery strategy to efficiently and safely enhance the transport of therapeutic molecules into human monocyte-derived macrophages in the aim of targeting HIV-1 in this cellular reservoir.
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Affiliation(s)
- Eric Berger
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Dalibor Breznan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Sandra Stals
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Viraj J Jasinghe
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - David Gonçalves
- INRS-Institut Armand Frappier Centre, University of Quebec, Laval, Quebec, Canada
| | - Denis Girard
- INRS-Institut Armand Frappier Centre, University of Quebec, Laval, Quebec, Canada
| | - Sylvie Faucher
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
| | - Renaud Vincent
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Alain R Thierry
- Institute of Cancer Research of Montpellier, French National Institute of Health and Medical Research U986, Montpellier, France
| | - Carole Lavigne
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada.,INRS-Institut Armand Frappier Centre, University of Quebec, Laval, Quebec, Canada
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Vuong NQ, Breznan D, Goegan P, O'Brien JS, Williams A, Karthikeyan S, Kumarathasan P, Vincent R. In vitro toxicoproteomic analysis of A549 human lung epithelial cells exposed to urban air particulate matter and its water-soluble and insoluble fractions. Part Fibre Toxicol 2017; 14:39. [PMID: 28969663 PMCID: PMC5625787 DOI: 10.1186/s12989-017-0220-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 09/17/2017] [Indexed: 11/28/2022] Open
Abstract
Background Toxicity of airborne particulate matter (PM) is difficult to assess because PM composition is complex and variable due to source contribution and atmospheric transformation. In this study, we used an in vitro toxicoproteomic approach to identify the toxicity mechanisms associated with different subfractions of Ottawa urban dust (EHC-93). Methods A549 human lung epithelial cells were exposed to 0, 60, 140 and 200 μg/cm2 doses of EHC-93 (total), its insoluble and soluble fractions for 24 h. Multiple cytotoxicity assays and proteomic analyses were used to assess particle toxicity in the exposed cells. Results The cytotoxicity data based on cellular ATP, BrdU incorporation and LDH leakage indicated that the insoluble, but not the soluble, fraction is responsible for the toxicity of EHC-93 in A549 cells. Two-dimensional gel electrophoresis results revealed that the expressions of 206 protein spots were significantly altered after particle exposures, where 154 were identified by MALDI-TOF-TOF-MS/MS. The results from cytotoxicity assays and proteomic analyses converged to a similar finding that the effects of the total and insoluble fraction may be alike, but their effects were distinguishable, and their effects were significantly different from the soluble fraction. Furthermore, the toxic potency of EHC-93 total is not equal to the sum of its insoluble and soluble fractions, implying inter-component interactions between insoluble and soluble materials resulting in synergistic or antagonistic cytotoxic effects. Pathway analysis based on the low toxicity dose (60 μg/cm2) indicated that the two subfractions can alter the expression of those proteins involved in pathways including cell death, cell proliferation and inflammatory response in a distinguishable manner. For example, the insoluble and soluble fractions differentially affected the secretion of pro-inflammatory cytokines such as MCP-1 and IL-8 and distinctly altered the expression of those proteins (e.g., TREM1, PDIA3 and ENO1) involved in an inflammatory response pathway in A549 cells. Conclusions This study demonstrated the impact of different fractions of urban air particles constituted of various chemical species on different mechanistic pathways and thus on cytotoxicity effects. In vitro toxicoproteomics can be a valuable tool in mapping these differences in air pollutant exposure-related toxicity mechanisms. Electronic supplementary material The online version of this article (10.1186/s12989-017-0220-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ngoc Q Vuong
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada.,Department of Biochemistry, Faculty of Science, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Dalibor Breznan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Patrick Goegan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Julie S O'Brien
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Andrew Williams
- Biostatistics Section, Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Subramanian Karthikeyan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Premkumari Kumarathasan
- Analytical Biochemistry and Proteomics, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada.
| | - Renaud Vincent
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada. .,Department of Biochemistry, Faculty of Science, University of Ottawa, Ottawa, ON, K1H 8M5, Canada.
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24
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Ong LC, Tan YF, Tan BS, Chung FFL, Cheong SK, Leong CO. Single-walled carbon nanotubes (SWCNTs) inhibit heat shock protein 90 (HSP90) signaling in human lung fibroblasts and keratinocytes. Toxicol Appl Pharmacol 2017; 329:347-357. [DOI: 10.1016/j.taap.2017.06.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/17/2017] [Accepted: 06/30/2017] [Indexed: 12/15/2022]
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25
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Breznan D, Das DD, O'Brien JS, MacKinnon-Roy C, Nimesh S, Vuong NQ, Bernatchez S, DeSilva N, Hill M, Kumarathasan P, Vincent R. Differential cytotoxic and inflammatory potency of amorphous silicon dioxide nanoparticles of similar size in multiple cell lines. Nanotoxicology 2017; 11:223-235. [PMID: 28142331 DOI: 10.1080/17435390.2017.1287313] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The likelihood of environmental and health impacts of silicon dioxide nanoparticles (SiNPs) has risen, due to their increased use in products and applications. The biological potency of a set of similarly-sized amorphous SiNPs was investigated in a variety of cells to examine the influence of physico-chemical and biological factors on their toxicity. Cellular LDH and ATP, BrdU incorporation, resazurin reduction and cytokine release were measured in human epithelial A549, human THP-1 and mouse J774A.1 macrophage cells exposed for 24 h to suspensions of 5-15, 10-20 and 12 nm SiNPs and reference particles. The SiNPs were characterized in dry state and in suspension to determine their physico-chemical properties. The dose-response data were simplified into particle potency estimates to facilitate the comparison of multiple endpoints of biological effects in cells. Mouse macrophages were the most sensitive to SiNP exposures. Cytotoxicity of the individual cell lines was correlated while the cytokine responses differed, supported by cell type-specific differences in inflammation-associated pathways. SiNP (12 nm), the most cytotoxic and inflammogenic nanoparticle had the highest surface acidity, dry-state agglomerate size, the lowest trace metal and organics content, the smallest surface area and agglomerate size in suspension. Particle surface acidity appeared to be the most significant determinant of the overall biological activity of this set of nanoparticles. Combined with the nanoparticle characterization, integration of the biological potency estimates enabled a comprehensive determination of the cellular reactivity of the SiNPs. The approach shows promise as a useful tool for first-tier screening of SiNP toxicity.
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Affiliation(s)
- Dalibor Breznan
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Dharani D Das
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Julie S O'Brien
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Christine MacKinnon-Roy
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Surendra Nimesh
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Ngoc Q Vuong
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Stéphane Bernatchez
- b New Substances Assessment and Control Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Nimal DeSilva
- c Department of Earth and Environmental Sciences , University of Ottawa , Ottawa , Canada
| | - Myriam Hill
- b New Substances Assessment and Control Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Prem Kumarathasan
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
| | - Renaud Vincent
- a Environmental Health Science and Research Bureau, Health Canada, Tunney's Pasture , Ottawa , Canada
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26
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Vuong NQ, Goegan P, De Rose F, Breznan D, Thomson EM, O'Brien JS, Karthikeyan S, Williams A, Vincent R, Kumarathasan P. Responses of A549 human lung epithelial cells to cristobalite and α-quartz exposures assessed by toxicoproteomics and gene expression analysis. J Appl Toxicol 2016; 37:721-731. [PMID: 27917503 PMCID: PMC5434822 DOI: 10.1002/jat.3420] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/12/2016] [Accepted: 10/26/2016] [Indexed: 12/19/2022]
Abstract
In this study, we used cytotoxicity assays, proteomic and gene expression analyses to examine the difference in response of A549 cells to two silica particles that differ in physical properties, namely cristobalite (CR) and α‐quartz (Min‐U‐Sil 5, MI). Cytotoxicity assays such as lactate dehydrogenase release, 5‐bromo‐2′‐deoxyuridine incorporation and cellular ATP showed that both silica particles could cause cell death, decreased cell proliferation and metabolism in the A549 human lung epithelial cells. While cytotoxicity assays revealed little difference between CR and MI exposures, proteomic and gene expression analyses unveiled both similar and unique molecular changes in A549 cells. For instance, two‐dimensional gel electrophoresis data indicated that the expression of proteins in the cell death (e.g., ALDH1A1, HTRA2 and PRDX6) and cell proliferation (e.g., FSCN1, HNRNPAB and PGK1) pathways were significantly different between the two silica particles. Reverse transcription–polymerase chain reaction data provided additional evidence supporting the proteomic findings. Preliminary assessment of the physical differences between CR and MI suggested that the extent of surface interaction between particles and cells could explain some of the observed biological effects. However, the differential dose–response curves for some other genes and proteins suggest that other physical attributes of particulate matter can also contribute to particulate matter‐related cellular toxicity. Our results demonstrated that toxicoproteomic and gene expression analyses are sensitive in distinguishing subtle toxicity differences associated with silica particles of varying physical properties compared to traditional cytotoxicity endpoints. Copyright © 2016 Her Majesty the Queen in Right of Canada. Journal of Applied Toxicology published by John Wiley & Sons, Ltd. In this study, we used cytotoxicity assays, proteomic and gene expression analyses to examine the difference in response of A549 cells to two silica particles that differ in physical properties, namely cristobalite (CR) and α‐quartz (Min‐U‐Sil 5, MI). Cytotoxicity assays such as lactate dehydrogenase release, 5‐bromo‐2'‐deoxyuridine incorporation and cellular ATP showed that both silica particles could cause cell death, decreased cell proliferation and metabolism in the A549 human lung epithelial cells. While cytotoxicity assays revealed little difference between CR and MI exposures, proteomic and gene expression analyses unveiled both similar and unique molecular changes in A549 cells.
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Affiliation(s)
- Ngoc Q Vuong
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada.,Department of Biochemistry, Faculty of Science, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Patrick Goegan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Francesco De Rose
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Dalibor Breznan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Errol M Thomson
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Julie S O'Brien
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Subramanian Karthikeyan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Andrew Williams
- Biostatistics Section, Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Renaud Vincent
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada.,Department of Biochemistry, Faculty of Science, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Premkumari Kumarathasan
- Analytical Biochemistry and Proteomics Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
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27
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Bao L, Wang L, Wei G, Wang Y, Wuyun G, Bo A. Role of microRNA-4458 in patients with non-small-cell lung cancer. Oncol Lett 2016; 12:3958-3966. [PMID: 27895756 DOI: 10.3892/ol.2016.5176] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 03/01/2016] [Indexed: 01/17/2023] Open
Abstract
Incidence and progression of non-small-cell lung cancer (NSCLC) is a multi-factor, multi-step process. The present study investigated the association between the expression level of microRNA (miR)-4458 in NSCLC and paracarcinoma liver tissues and survival rates, and studied the biological functions of miR-4458 at the cellular and protein level. NSCLC and paracarcinoma tissues were sequenced using a miR expression chip. The association between miR-4458 expression and tumor-node-metastasis staging, total survival rate and relapse-free survival rate was analyzed. miR-4458 was subjected to target gene prediction. The target protein of cyclin D1 (CCND1) was verified with western blot analysis, immunohistochemistry and a luciferase reporter assay. The relative level of miR-4458 in paracarcinoma tissues of 9 NSCLC patients decreased from 2.38 to 0.65 (P<0.001). Total five-year survival rates of the high-expression miR-4458 group (29.21%) significantly exceeded that of the low-expression group (14.37%) (P=0.025). The viability of human lung carcinoma A549 and H460 cells transfected with miR-4458 decreased significantly compared with cells transfected with a normal control (blank control plasmid) within 72 h (P<0.001). The percentage of A549 and H460 cells transfected with a miR-4458 mimic at the cell cycle stage G0/G1 was 69.94±8.05 and 68.15±7.75%, respectively. The percentages increased significantly compared with the control group (46.06±6.93 for A549 cells; 45.22±7.24 for H640 cells; P<0.001). CCND1 mRNA was downregulated significantly in H460 cells 72 h subsequent to the addition of miR-4458 mimics (P<0.001). The activity of mutant-CCND1 altered slightly, while the fluorescence intensity of the wild-type-CCND1 group decreased significantly following the addition of miR-4458 mimics. In conclusion, miR-4458 was expressed at low levels in lung cancer tissues, and it arrested cells in vitro at stage G0/G1 and inhibited cell proliferation. Therefore, miR-4458 may participate in the onset of lung cancer as a suppressor gene by inhibiting CCND1.
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Affiliation(s)
- Lidao Bao
- Department of Pharmacy, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia 010059, P.R. China
| | - Linlin Wang
- Department of Respiration, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Guomin Wei
- Department of Respiration, Binzhou People's Hospital, Binzhou, Shandong 256610, P.R. China
| | - Yuehong Wang
- College of Mongolian Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010110, P.R. China
| | - Gerile Wuyun
- College of Mongolian Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010110, P.R. China
| | - Agula Bo
- College of Mongolian Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010110, P.R. China
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28
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Pusty M, Rana AK, Kumar Y, Sathe V, Sen S, Shirage P. Synthesis of Partially Reduced Graphene Oxide/Silver Nanocomposite and Its Inhibitive Action on Pathogenic Fungi Grown Under Ambient Conditions. ChemistrySelect 2016. [DOI: 10.1002/slct.201600783] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Manojit Pusty
- Discipline of Metallurgy Engineering and Materials Science; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
| | - Amit Kumar Rana
- Department of Physics; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
| | - Yogendra Kumar
- Discipline of Metallurgy Engineering and Materials Science; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
| | - Vasant Sathe
- UGC-DAE Consortium for Scientific Research, DAVV Campus; Khandwa Road Indore- 452017 India
| | - Somaditya Sen
- Discipline of Metallurgy Engineering and Materials Science; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
- Department of Physics; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
| | - Parasharam Shirage
- Discipline of Metallurgy Engineering and Materials Science; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
- Department of Physics; Indian Institute of Technology (IIT) Indore, Simrol; Khandwa Road Indore- 453552 India
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29
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Borghini A, Roursgaard M, Andreassi MG, Kermanizadeh A, Møller P. Repair activity of oxidatively damaged DNA and telomere length in human lung epithelial cells after exposure to multi-walled carbon nanotubes. Mutagenesis 2016; 32:173-180. [PMID: 27530331 DOI: 10.1093/mutage/gew036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
One type of carbon nanotubes (CNTs) (MWCNT-7, from Mitsui) has been classified as probably carcinogenic to humans, however insufficient data does not warrant the same classification for other types of CNTs. Experimental data indicate that CNT exposure can result in oxidative stress and DNA damage in cultured cells, whereas these materials appear to induce low or no mutagenicity. Therefore, the present study aimed to investigate whether in vitro exposure of cultured airway epithelial cells (A549) to multi-walled CNTs (MWCNTs) could increase the DNA repair activity of oxidatively damaged DNA and drive the cells toward replicative senescence, assessed by attrition of telomeres. To investigate this, H2O2 and KBrO3 were used to induce DNA damage in the cells and the effect of pre-exposure to MWCNT tested for a change in repair activity inside the cells or in the extract of treated cells. The effect of MWCNT exposure on telomere length was investigated for concentration and time response. We report a significantly increased repair activity in A549 cells exposed to MWCNTs compared to non-exposed cells, suggesting that DNA repair activity may be influenced by exposure to MWCNTs. The telomere length was decreased at times longer than 24h, but this decrease was not concentration dependent. The results suggest that the seemingly low mutagenicity of CNTs in cultured cells may be associated with an increased DNA repair activity and a replicative senescence, which may counteract the manifestation of DNA lesions to mutations.
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Affiliation(s)
- Andrea Borghini
- Genetics Unit, CNR Institute of Clinical Physiology, Via G. Moruzzi 1, 56124 Pisa, Pisa, Italy.,Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen, Denmark
| | - Martin Roursgaard
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen, Denmark
| | - Maria Grazia Andreassi
- Genetics Unit, CNR Institute of Clinical Physiology, Via G. Moruzzi 1, 56124 Pisa, Pisa, Italy
| | - Ali Kermanizadeh
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen, Denmark
| | - Peter Møller
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, DK-1014 Copenhagen, Denmark
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Breznan D, Karthikeyan S, Phaneuf M, Kumarathasan P, Cakmak S, Denison MS, Brook JR, Vincent R. Development of an integrated approach for comparison of in vitro and in vivo responses to particulate matter. Part Fibre Toxicol 2016; 13:41. [PMID: 27520027 PMCID: PMC4983025 DOI: 10.1186/s12989-016-0152-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 07/26/2016] [Indexed: 12/13/2022] Open
Abstract
Background Association of particulate matter with adverse health effects has been established in epidemiological studies and animal experiments. Epidemiological studies are difficult to undertake while animal studies are impractical for high-throughput toxicity testing. The ease and rapidity of in vitro tests emphasizes their potential for use in risk assessment of chemicals and particles. We examined the association between in vitro and in vivo responses to ambient particles, to determine the potential of cell-based assays as standalone toxicity screening tools. Methods Assays of cytotoxicity and key inflammatory mediators were applied to determine the in vitro biological potency of a panel of urban and mineral particles in J774A.1 macrophages and A549 lung epithelial cells. The particles were also screened for the presence of AhR agonists using the Ah receptor-dependent gene induction assay and for endotoxin using the Limulus amebocyte lysate assay. A subset of the particles with a contrasting in vitro toxicity profile was delivered intratracheally in BALB/c mice to assess their in vivo biological potency. Results from various bioassays were combined within the in vitro and in vivo models. The combined potency measures were examined for associations. Results Overall, J774A.1 cells were more sensitive to particle effects than A549 cells. Whereas the combined cytotoxicity estimates were highly correlated between the two cell lines, the combined in vitro inflammatory potency estimates were not, emphasizing functional differences of the two cell types. Secretion of inflammatory markers by J774A.1 cells was correlated with AhR ligand binding profile and endotoxin levels of particles. Particle instillation led to an acute toxicity response in BALB/c mice, with neutrophilia and release of inflammatory mediators. While the combined toxicity estimates were not correlated between in vitro and in vivo models, the combined inflammatory and integrated potency estimates (toxicity and inflammation) approached the threshold for significance (p = 0.052) in a correlation within in vitro and in vivo models, with a ranking of fine particle (DWR1), minerals (TiO2, CRI) and coarse particles (SRM-, EHC-type) from low to high potency. Conclusion Integration of in vitro endpoints shows promise in determining adverse outcomes of particle exposures in vivo. The devised data reduction and computational approach will prove useful in the development of models for assessment of hazard potential of particles; however, distinct models may be needed for particles of different type, such as urban particles vs. mineral particles, nanomaterials. Electronic supplementary material The online version of this article (doi:10.1186/s12989-016-0152-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dalibor Breznan
- Inhalation Toxicology Laboratory, Hazard Identification Division, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Subramanian Karthikeyan
- Inhalation Toxicology Laboratory, Hazard Identification Division, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Marcelle Phaneuf
- Inhalation Toxicology Laboratory, Hazard Identification Division, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Prem Kumarathasan
- Analytical Biochemistry and Proteomics Laboratory, Mechanistic Studies Division, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Sabit Cakmak
- Air Health Effects Research, Population Studies Division, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada
| | - Michael S Denison
- Department of Environmental Toxicology, University of California, Davis, CA, USA
| | - Jeffrey R Brook
- Processes Research Section, Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON, Canada
| | - Renaud Vincent
- Inhalation Toxicology Laboratory, Hazard Identification Division, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, Canada.
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Cywinska MA, Bystrzejewski M, Poplawska M, Kosmider A, Zdanowski R, Lewicki S, Fijalek Z, Ostrowska A, Bamburowicz M, Cieszanowski A, Grudzinski IP. Internalization and cytotoxicity effects of carbon-encapsulated iron nanoparticles in murine endothelial cells: Studies on internal dosages due to loaded mass agglomerates. Toxicol In Vitro 2016; 34:229-236. [DOI: 10.1016/j.tiv.2016.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 10/21/2022]
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32
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Vuong NQ, Goegan P, Mohottalage S, Breznan D, Ariganello M, Williams A, Elisma F, Karthikeyan S, Vincent R, Kumarathasan P. Human lung epithelial cell A549 proteome data after treatment with titanium dioxide and carbon black. Data Brief 2016; 8:687-91. [PMID: 27508218 PMCID: PMC4949731 DOI: 10.1016/j.dib.2016.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/26/2016] [Accepted: 06/14/2016] [Indexed: 11/29/2022] Open
Abstract
Here, we have described the dataset relevant to the A549 cellular proteome changes after exposure to either titanium dioxide or carbon black particles as compared to the non-exposed controls, “Proteomic changes in human lung epithelial cells (A549) in response to carbon black and titanium dioxide exposures” (Vuong et al., 2016) [1]. Detailed methodologies on the separation of cellular proteins by 2D-GE and the subsequent mass spectrometry analyses using MALDI-TOF-TOF-MS are documented. Particle exposure-specific protein expression changes were measured via 2D-GE spot volume analysis. Protein identification was done by querying mass spectrometry data against SwissProt and RefSeq protein databases using Mascot search engine. Two-way ANOVA analysis data provided information on statistically significant A549 protein expression changes associated with particle exposures.
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Affiliation(s)
- Ngoc Q Vuong
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9; Department of Biochemistry, Faculty of Science, University of Ottawa, Ottawa, ON, Canada K1H 8M5
| | - Patrick Goegan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Susantha Mohottalage
- Analytical Biochemistry and Proteomics, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Dalibor Breznan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Marianne Ariganello
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Andrew Williams
- Biostatistics Section, Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Fred Elisma
- Analytical Biochemistry and Proteomics, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Subramanian Karthikeyan
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9
| | - Renaud Vincent
- Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9; Department of Biochemistry, Faculty of Science, University of Ottawa, Ottawa, ON, Canada K1H 8M5
| | - Premkumari Kumarathasan
- Analytical Biochemistry and Proteomics, Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada K1A 0K9; Interdisciplinary School of Health Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada K1H 8M5
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Polimeni M, Gulino GR, Gazzano E, Kopecka J, Marucco A, Fenoglio I, Cesano F, Campagnolo L, Magrini A, Pietroiusti A, Ghigo D, Aldieri E. Multi-walled carbon nanotubes directly induce epithelial-mesenchymal transition in human bronchial epithelial cells via the TGF-β-mediated Akt/GSK-3β/SNAIL-1 signalling pathway. Part Fibre Toxicol 2016; 13:27. [PMID: 27251132 PMCID: PMC4890337 DOI: 10.1186/s12989-016-0138-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/10/2016] [Indexed: 12/25/2022] Open
Abstract
Background Multi-walled carbon nanotubes (MWCNT) are currently under intense toxicological investigation due to concern on their potential health effects. Current in vitro and in vivo data indicate that MWCNT exposure is strongly associated with lung toxicity (inflammation, fibrosis, granuloma, cancer and airway injury) and their effects might be comparable to asbestos-induced carcinogenesis. Although fibrosis is a multi-origin disease, epithelial-mesenchymal transition (EMT) is recently recognized as an important pathway in cell transformation. It is known that MWCNT exposure induces EMT through the activation of the TGF-β/Smad signalling pathway thus promoting pulmonary fibrosis, but the molecular mechanisms involved are not fully understood. In the present work we propose a new mechanism involving a TGF-β-mediated signalling pathway. Methods Human bronchial epithelial cells were incubated with two different MWCNT samples at various concentrations for up to 96 h and several markers of EMT were investigated. Quantitative real time PCR, western blot, immunofluorescent staining and gelatin zymographies were performed to detect the marker protein alterations. ELISA was performed to evaluate TGF-β production. Experiments with neutralizing anti-TGF-β antibody, specific inhibitors of GSK-3β and Akt and siRNA were carried out in order to confirm their involvement in MWCNT-induced EMT. In vivo experiments of pharyngeal aspiration in C57BL/6 mice were also performed. Data were analyzed by a one-way ANOVA with Tukey’s post-hoc test. Results Fully characterized MWCNT (mean length < 5 μm) are able to induce EMT in an in vitro human model (BEAS-2B cells) after long-term incubation at sub-cytotoxic concentrations. MWCNT stimulate TGF-β secretion, Akt activation and GSK-3β inhibition, which induces nuclear accumulation of SNAIL-1 and its transcriptional activity, thus contributing to switch on the EMT program. Moreover, a significant increment of nuclear β-catenin - due to E-cadherin repression and following translocation to nucleus - likely reinforces signalling for EMT promotion. In vivo results supported the occurrence of pulmonary fibrosis following MWCNT exposure. Conclusions We demonstrate a new molecular mechanism of MWCNT-mediated EMT, which is Smad-independent and involves TGF-β and its intracellular effectors Akt/GSK-3β that activate the SNAIL-1 signalling pathway. This finding suggests potential novel targets in the development of therapeutic and preventive approaches. Electronic supplementary material The online version of this article (doi:10.1186/s12989-016-0138-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Manuela Polimeni
- Department of Oncology, University of Turin, via Santena 5/bis, 10126, Turin, Italy.,Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Giulia Rossana Gulino
- Department of Oncology, University of Turin, via Santena 5/bis, 10126, Turin, Italy.,Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Elena Gazzano
- Department of Oncology, University of Turin, via Santena 5/bis, 10126, Turin, Italy.,Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Joanna Kopecka
- Department of Oncology, University of Turin, via Santena 5/bis, 10126, Turin, Italy
| | - Arianna Marucco
- Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy.,Department of Chemistry, University of Turin, via Pietro Giuria 7, 10125, Turin, Italy
| | - Ivana Fenoglio
- Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy.,Department of Chemistry, University of Turin, via Pietro Giuria 7, 10125, Turin, Italy.,NIS - Nanostructured Interfaces and Surfaces, University of Turin, via Pietro Giuria 7, 10125, Turin, Italy
| | - Federico Cesano
- Department of Chemistry, University of Turin, via Pietro Giuria 7, 10125, Turin, Italy.,NIS - Nanostructured Interfaces and Surfaces, University of Turin, via Pietro Giuria 7, 10125, Turin, Italy
| | - Luisa Campagnolo
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133, Rome, Italy
| | - Andrea Magrini
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133, Rome, Italy
| | - Antonio Pietroiusti
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133, Rome, Italy
| | - Dario Ghigo
- Department of Oncology, University of Turin, via Santena 5/bis, 10126, Turin, Italy.,Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy
| | - Elisabetta Aldieri
- Department of Oncology, University of Turin, via Santena 5/bis, 10126, Turin, Italy. .,Interdepartmental Centre Scansetti for Studies on Asbestos and Other Toxic Particulates, University of Turin, Turin, Italy.
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Loo AH, Sofer Z, Bouša D, Ulbrich P, Bonanni A, Pumera M. Carboxylic Carbon Quantum Dots as a Fluorescent Sensing Platform for DNA Detection. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1951-7. [PMID: 26762211 DOI: 10.1021/acsami.5b10160] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The demand for simple, sensitive, affordable, and selective DNA biosensors is ubiquitous, due to the important role that DNA detection performs in the areas of disease diagnostics, environment monitoring, and food safety. A novel application of carboxylic carbon quantum dots (cCQD) is highlighted in this study. Herein, cCQD function as a nanoquencher in the detection of nucleic acid based on a homogeneous fluorescent assay. To that purpose, the performance of two types of cCQD, namely, citric acid QD and malic acid QD, is evaluated. The principle behind the sensing of nucleic acid lies in the different propensity of single-stranded DNA and double-stranded DNA to adsorb onto the surface of cCQD. For both types of cCQD, a superior range of detection of at least 3 orders of magnitude is achieved, and the potential to distinguish single-base mismatch is also exhibited. These findings are anticipated to provide valuable insights on the employment of cCQD for the fabrication of future DNA biosensors.
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Affiliation(s)
- Adeline Huiling Loo
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Zdenek Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague , Technická 5, 166 28 Prague 6, Czech Republic
| | - Daniel Bouša
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague , Technická 5, 166 28 Prague 6, Czech Republic
| | - Pavel Ulbrich
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague , Technická 3, 166 28 Prague 6, Czech Republic
| | - Alessandra Bonanni
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Martin Pumera
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
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Thomas MG, Marwood RM, Parsons AE, Parsons RB. The effect of foetal bovine serum supplementation upon the lactate dehydrogenase cytotoxicity assay: Important considerations for in vitro toxicity analysis. Toxicol In Vitro 2015; 30:300-8. [PMID: 26498060 DOI: 10.1016/j.tiv.2015.10.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/16/2015] [Accepted: 10/18/2015] [Indexed: 02/06/2023]
Abstract
The lactate dehydrogenase (LDH) assay is a commonly-used tool for assessing toxicity in vitro. However, anecdotal reports suggest that foetal bovine serum (FBS) may contain LDH at concentrations significant enough to interfere with the assay and thus reduce its sensitivity. A series of experiments were performed to determine whether addition of FBS to culture medium significantly elevated culture media LDH content, and whether replacement of FBS with heat inactivated foetal bovine serum (HI-FBS) reduced LDH content and interfered with cell response to cytotoxic challenge. The addition of FBS at 5, 10 and 15% final concentrations increased culture medium LDH content in a dose-dependent manner. The substitution of HI-FBS for FBS reduced culture medium LDH content and increased the dynamic range of the assay. Cell viability of the SH-SY5Y human neuroblastoma and N27 rat mesencephalic neurone cell lines were significantly reduced as measured using the MTT reduction assay, whilst HI-FBS only affected toxicity response in a cell- and toxin-specific manner, although these effects were small. Hence, for cell lines with a high FBS requirement, the use of HI-FBS or alternative toxicity assays can be considered, or the use of alternative formulations, such as chemically-defined serum-free media, be adopted.
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Affiliation(s)
- Martin G Thomas
- King's College London, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Roxanne M Marwood
- King's College London, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Anna E Parsons
- King's College London, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Richard B Parsons
- King's College London, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom.
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Heterocyclic Anticancer Compounds: Recent Advances and the Paradigm Shift towards the Use of Nanomedicine's Tool Box. Molecules 2015; 20:16852-91. [PMID: 26389876 PMCID: PMC6331900 DOI: 10.3390/molecules200916852] [Citation(s) in RCA: 353] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/08/2015] [Accepted: 09/09/2015] [Indexed: 02/07/2023] Open
Abstract
The majority of heterocycle compounds and typically common heterocycle fragments present in most pharmaceuticals currently marketed, alongside with their intrinsic versatility and unique physicochemical properties, have poised them as true cornerstones of medicinal chemistry. Apart from the already marketed drugs, there are many other being investigated for their promising activity against several malignancies. In particular, anticancer research has been capitalizing on the intrinsic versatility and dynamic core scaffold of these compounds. Nevertheless, as for any other promising anticancer drugs, heterocyclic compounds do not come without shortcomings. In this review, we provide for a concise overview of heterocyclic active compounds and families and their main applications in medicine. We shall focus on those suitable for cancer therapy while simultaneously addressing main biochemical modes of action, biological targets, structure-activity relationships as well as intrinsic limitation issues in the use of these compounds. Finally, considering the advent of nanotechnology for effective selective targeting of drugs, we shall discuss fundamental aspects and considerations on nanovectorization of such compounds that may improve pharmacokinetic/pharmacodynamic properties of heterocycles.
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