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Kaur J, Sharma A, Passi G, Dey P, Khajuria A, Alajangi HK, Jaiswal PK, Barnwal RP, Singh G. Nanomedicine at the Pulmonary Frontier: Immune-Centric Approaches for Respiratory Disease Treatment. Immunol Invest 2024; 53:295-347. [PMID: 38206610 DOI: 10.1080/08820139.2023.2298398] [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: 01/12/2024]
Abstract
Respiratory diseases (RD) are a group of common ailments with a rapidly increasing global prevalence, posing a significant threat to humanity, especially the elderly population, and imposing a substantial burden on society and the economy. RD represents an unmet medical need that requires the development of viable pharmacotherapies. While various promising strategies have been devised to advance potential treatments for RD, their implementation has been hindered by difficulties in drug delivery, particularly in critically ill patients. Nanotechnology offers innovative solutions for delivering medications to the inflamed organ sites, such as the lungs. Although this approach is enticing, delivering nanomedicine to the lungs presents complex challenges that require sophisticated techniques. In this context, we review the potential of novel nanomedicine-based immunomodulatory strategies that could offer therapeutic benefits in managing this pressing health condition.
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Affiliation(s)
- Jatinder Kaur
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Akanksha Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Gautam Passi
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Piyush Dey
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Akhil Khajuria
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - Hema Kumari Alajangi
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
- Department of Biophysics, Panjab University, Chandigarh, India
| | - Pradeep Kumar Jaiswal
- Department of Biochemistry and Biophysics, Texas A & M University, College Station, Texas, USA
| | | | - Gurpal Singh
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
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2
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Uskoković V. Lessons from the history of inorganic nanoparticles for inhalable diagnostics and therapeutics. Adv Colloid Interface Sci 2023; 315:102903. [PMID: 37084546 DOI: 10.1016/j.cis.2023.102903] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/23/2023]
Abstract
The respiratory tract is one of the most accessible ones to exogenous nanoparticles, yet drug delivery by their means to it is made extraordinarily challenging because of the plexus of aerodynamic, hemodynamic and biomolecular factors at cellular and extracellular levels that synergistically define the safety and efficacy of this process. Here, the use of inorganic nanoparticles (INPs) for inhalable diagnostics and therapies of the lung is viewed through the prism of the history of studies on the interaction of INPs with the lower respiratory tract. The most conceptually and methodologically innovative and illuminative studies are referred to in the chronological order, as they were reported in the literature, and the trends in the progress of understanding this interaction of immense therapeutic and toxicological significance are being deduced from it. The most outstanding actual trends delineated include the diminishment of toxicity via surface functionalization, cell targeting, tagging and tracking via controlled binding and uptake, hybrid INP treatments, magnetic guidance, combined drug and gene delivery, use as adjuvants in inhalable vaccines, and other. Many of the understudied research directions, which have been accomplished by the nanostructured organic polymers in the pulmonary niche, are discussed. The progress in the use of INPs as inhalable diagnostics or therapeutics has been hampered by their well-recognized inflammatory potential and toxicity in the respiratory tract. However, the annual numbers of methodologically innovative studies have been on the rise throughout the past two decades, suggesting that this is a prolific direction of research, its comparatively poor commercial takings notwithstanding. Still, the lack of consensus on the effects of many INP compositions at low but therapeutically effective doses, the plethora of contradictory reports on ostensibly identical chemical compositions and NP properties, and the many cases of antagonism in combinatorial NP treatments imply that the rational design of inhalable medical devices based on INPs must rely on qualitative principles for the most part and embrace a partially stochastic approach as well. At the same time, the fact that the most studied INPs for pulmonary applications have been those with some of the thickest records of pulmonary toxicity, e.g., carbon, silver, gold, silica and iron oxide, is a silent call for the expansion of the search for new inorganic compositions for use in inhalable therapies to new territories.
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Affiliation(s)
- Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, TardigradeNano LLC, 7 Park Vista, Irvine, CA 92604, USA; Department of Mechanical Engineering, San Diego State University, 5500 Campanile Dr., San Diego, CA 92182, USA.
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3
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August A, Marichal T. Eosinophils and Lung Mucosal Antibody Production: Is Location the Key? Am J Respir Cell Mol Biol 2023; 68:124-126. [PMID: 36306503 PMCID: PMC9986563 DOI: 10.1165/rcmb.2022-0410ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Avery August
- Department of Microbiology & Immunology Cornell University Ithaca, New York
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Zhang X, Li M, Wu H, Fan W, Zhang J, Su W, Wang Y, Li P. Naringenin attenuates inflammation, apoptosis, and ferroptosis in silver nanoparticle-induced lung injury through a mechanism associated with Nrf2/HO-1 axis: In vitro and in vivo studies. Life Sci 2022; 311:121127. [PMID: 36306867 DOI: 10.1016/j.lfs.2022.121127] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/14/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
Abstract
With the wide application of silver nanoparticles (AgNPs), their potential damage to human health needs to be investigated. Lung is one of the main target organs after inhalation of AgNPs. Naringenin has been reported to have anti-inflammatory and anti-oxidative properties. This study aims to evaluate the protective effects of naringenin against AgNPs-induced lung injury and determine the underlying mechanism. In in vivo experiments, AgNPs were intratracheally instilled into ICR mice (l mg/kg) to establish a lung injury model. These mice were then treated with naringenin by oral gavage (25, 50, 100 mg/kg) for three days. Naringenin treatment decreased the levels of white blood cells, neutrophils, and lymphocytes in the blood, ameliorated lung injury, suppressed the release of pro-inflammatory cytokines, normalized ferroptotic markers and prevented oxidative stress with elevating Nrf2 and HO-1 protein expressions in lung. In in vitro experiments, BEAS-2B cells were firstly treated with AgNPs (320 μg/mL) and then naringenin (25, 50, and 100 μM), respectively. Naringenin attenuated AgNPs-induced oxidative stress and inflammatory response. Moreover, naringenin attenuated AgNPs-induced apoptosis with modulated low BAX, CytC, cleaved Caspase9, cleaved Caspase3 but high Bcl2. Furthermore, naringenin effectively decreased ferroptotic markers and increased the protein expressions of Nrf2 and HO-1, as well as increased the nuclear translocation of Nrf2. Importantly, the anti-apoptotic and anti-ferroptotic effects of naringenin in BEAS-2B cells were found to be at least partially Nrf2-dependent. These results indicated that naringenin exerted anti-inflammation, anti-apoptosis, and anti-ferroptosis effects and protected against AgNPs-induced lung injury at least partly via activating Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Xinxu Zhang
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Min Li
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Hao Wu
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Weiyang Fan
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Jiashuo Zhang
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Weiwei Su
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Yonggang Wang
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
| | - Peibo Li
- Guangdong Engineering and Technology Research Center for Quality and Efficacy Re-Evaluation of Post-Marketed TCM, State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China.
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5
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Silver nanoparticle-induced impaired autophagic flux and lysosomal dysfunction contribute to the microglia inflammation polarization. Food Chem Toxicol 2022; 170:113469. [DOI: 10.1016/j.fct.2022.113469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/27/2022] [Accepted: 10/08/2022] [Indexed: 11/06/2022]
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Anand B, Kim KH, Sonne C, Bhardwaj N. Advanced sanitation products infused with silver nanoparticles for viral protection and their ecological and environmental consequences. ENVIRONMENTAL TECHNOLOGY & INNOVATION 2022; 28:102924. [PMID: 36186919 PMCID: PMC9514001 DOI: 10.1016/j.eti.2022.102924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/07/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
The outbreak of coronavirus ailments (COVID-19) in 2019 resulted in public health crisis leading to global pandemonium. In response to the high prevalence of disease transmission, governments all around the globe implemented emergency measures in various routes (e.g., social distancing, personal hygiene, and disinfection of public/private places) to curb/contain COVID-19 infections. The social media infodemic, released as uncensored publishing and/or views/recommendations, also triggered large-scale behavior changes such as the overuse of advanced sanitation products (ASPs) containing nanomaterials. The majority of these ASPs contain silver nanoparticles (AgNPs) as an active ingredient to enhance their antimicrobial potential. Ecotoxicological concerns such as the transformation and degradation of these AgNP-infused products in terrestrial or aquatic environments are under the jurisdiction of the EPA. However, they are not considered in the FDA approval process. In light of excessive consumption of ASPs, it is time to consider their ecotoxicological screening prior to market approval jointly by the FDA and EPA, along with the implementation of post-market surveillance strategies. At the same time, efforts should be put into running awareness programs to prevent the overuse of ASPs.
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Affiliation(s)
- Bhaskar Anand
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea
| | - Christian Sonne
- Aarhus University, Arctic Research Centre (ARC), Department of Bioscience, Frederiksborgvej 399, P.O. Box 358, DK-4000 Roskilde, Denmark
| | - Neha Bhardwaj
- Department of Nanomaterials and Application Technology, Center of Innovative and Applied Bioprocessing, Sector 81 (Knowledge City), S.A.S. Nagar 140306, Punjab, India
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7
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Alqahtani S, Xia L, Shannahan JH. Enhanced silver nanoparticle-induced pulmonary inflammation in a metabolic syndrome mouse model and resolvin D1 treatment. Part Fibre Toxicol 2022; 19:54. [PMID: 35933425 PMCID: PMC9356467 DOI: 10.1186/s12989-022-00495-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 07/28/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) exacerbates susceptibility to inhalation exposures such as particulate air pollution, however, the mechanisms responsible remain unelucidated. Previously, we determined a MetS mouse model exhibited exacerbated pulmonary inflammation 24 h following AgNP exposure compared to a healthy mouse model. This enhanced response corresponded with reduction of distinct resolution mediators. We hypothesized silver nanoparticle (AgNP) exposure in MetS results in sustained pulmonary inflammation. Further, we hypothesized treatment with resolvin D1 (RvD1) will reduce exacerbations in AgNP-induced inflammation due to MetS. RESULTS To evaluate these hypotheses, healthy and MetS mouse models were exposed to vehicle (control) or AgNPs and a day later, treated with resolvin D1 (RvD1) or vehicle (control) via oropharyngeal aspiration. Pulmonary lung toxicity was evaluated at 3-, 7-, 14-, and 21-days following AgNP exposure. MetS mice exposed to AgNPs and receiving vehicle treatment, demonstrated exacerbated pulmonary inflammatory responses compared to healthy mice. In the AgNP exposed mice receiving RvD1, pulmonary inflammatory response in MetS was reduced to levels comparable to healthy mice exposed to AgNPs. This included decreases in neutrophil influx and inflammatory cytokines, as well as elevated anti-inflammatory cytokines. CONCLUSIONS Inefficient resolution may contribute to enhancements in MetS susceptibility to AgNP exposure causing an increased pulmonary inflammatory response. Treatments utilizing specific resolution mediators may be beneficial to individuals suffering MetS following inhalation exposures.
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Affiliation(s)
- Saeed Alqahtani
- grid.169077.e0000 0004 1937 2197School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN USA ,grid.452562.20000 0000 8808 6435Life Science and Environment Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
| | - Li Xia
- grid.169077.e0000 0004 1937 2197School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN USA
| | - Jonathan H. Shannahan
- grid.169077.e0000 0004 1937 2197School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN USA
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Lung Models to Evaluate Silver Nanoparticles’ Toxicity and Their Impact on Human Health. NANOMATERIALS 2022; 12:nano12132316. [PMID: 35808152 PMCID: PMC9268743 DOI: 10.3390/nano12132316] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/17/2022]
Abstract
Nanomaterials (NMs) solve specific problems with remarkable results in several industrial and scientific areas. Among NMs, silver nanoparticles (AgNPs) have been extensively employed as drug carriers, medical diagnostics, energy harvesting devices, sensors, lubricants, and bioremediation. Notably, they have shown excellent antimicrobial, anticancer, and antiviral properties in the biomedical field. The literature analysis shows a selective cytotoxic effect on cancer cells compared to healthy cells, making its potential application in cancer treatment evident, increasing the need to study the potential risk of their use to environmental and human health. A large battery of toxicity models, both in vitro and in vivo, have been established to predict the harmful effects of incorporating AgNPs in these numerous areas or those produced due to involuntary exposure. However, these models often report contradictory results due to their lack of standardization, generating controversy and slowing the advances in nanotoxicology research, fundamentally by generalizing the biological response produced by the AgNP formulations. This review summarizes the last ten years’ reports concerning AgNPs’ toxicity in cellular respiratory system models (e.g., mono-culture models, co-cultures, 3D cultures, ex vivo and in vivo). In turn, more complex cellular models represent in a better way the physical and chemical barriers of the body; however, results should be used carefully so as not to be misleading. The main objective of this work is to highlight current models with the highest physiological relevance, identifying the opportunity areas of lung nanotoxicology and contributing to the establishment and strengthening of specific regulations regarding health and the environment.
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Chen J, Cao G, Li L, Cai Q, Dunne N, Li X. Modification of polyether ether ketone for the repairing of bone defects. Biomed Mater 2022; 17. [PMID: 35395651 DOI: 10.1088/1748-605x/ac65cd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/08/2022] [Indexed: 11/12/2022]
Abstract
Bone damage as a consequence of disease or trauma is a common global occurrence. For bone damage treatment - bone implant materials are necessary across three classifications of surgical intervention (i.e. fixation, repair, and replacement). Many types of bone implant materials have been developed to meet the requirements of bone repair. Among them, polyether ether ketone (PEEK) has been considered as one of the next generation of bone implant materials, owing to its advantages related to good biocompatibility, chemical stability, X-ray permeability, elastic modulus comparable to natural bone, as well as the ease of processing and modification. However, as PEEK is a naturally bioinert material, some modification is needed to improve its integration with adjacent bones after implantation. Therefore, it has become a very hot topic of biomaterials research and various strategies for the modification of PEEK including blending, 3D printing, coating, chemical modification and the introduction of bioactive and/or antibacterial substances have been proposed. In this systematic review, the recent advances in modification of PEEK and its application prospect as bone implants are summarized, and the remaining challenges are also discussed.
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Affiliation(s)
- Junfeng Chen
- Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, Beijing, 100083, CHINA
| | - Guangxiu Cao
- Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, Beijing, 100083, CHINA
| | - Linhao Li
- Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, 100083, CHINA
| | - Qiang Cai
- Tsinghua University Department of Materials Science and Engineering, 30 shuangqing Rd, Haidian District, Beijing, Beijing, 100084, CHINA
| | - Nicholas Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Dublin, D09, IRELAND
| | - Xiaoming Li
- Biological Science and Medical Engineering, Beihang University, 37 Xueyuan Rd, Haidian District, Beijing, Beijing, 100083, CHINA
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Saud MA, Saud NA, Hamad MA, Farhan Gar L. Role of Salvia officinalis Silver Nanoparticles in Attenuation Renal Damage in Rabbits Exposed to Methotrexate. ARCHIVES OF RAZI INSTITUTE 2022; 77:151-162. [PMID: 35891727 PMCID: PMC9288605 DOI: 10.22092/ari.2021.356313.1821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/21/2021] [Indexed: 06/15/2023]
Abstract
Nanomaterials are now considered in an extensive range of applications in various fields such as biotechnology and biomedicine. The present study aimed to investigate the protective role of Salvia officinalis Silver Nanoparticles (SOSNPs) as an anti-oxidant on nephrotic damage induced by methotrexate (MTX) in adult rabbits. Green silver nanoparticles were synthesized using alcoholic extract of Salvia officinalis (S. Officinalis) leaves and were characterized by UV-spectrophotometry and scanning electron microscope. The mixing of the plant extract of S. Officinalis with silver nitrate solution leads to the change of the reaction mixture color to yellowish within 1 h and dark brown after 8 h. For studying the protective role of SOSNPs, a total of 28 adult Wistar albino rabbits were divided into four groups and treated intramuscularly (twice per week) for 45 days as follows: T1: S. Officinalis (150 mg/kg B.W), T2: SOSNPs (150 mg/kg B.W); T3: MTX (0.25 mg/kg B.W) and SOSNPs (150 mg/kg B.W); T4: MTX (0.25 mg/kg B.W). Blood was collected at 0, 15, 30, and 45 days using retro-orbital sinus and cardiac puncture technique, and the serum factors including malondialdehyde (MDA), glutathione (GSH) in serum, creatinine, as well as blood urea nitrogen and uric acid concentrations were measured at the next step. The results indicated that MTX (T4) caused a case of oxidative stress by a significant decrease in GSH and MDA as well as an increase in serum creatinine, urea, and uric acid concentrations. On the other hand, the protective roles of S. Officinalis and SOSNPs given concurrently with MTX were clarified in T2 and T3 groups, where there was the alleviation of renal damage through the correction of the previously mentioned parameters as well as the correction of anti-oxidant status. Finally, the present study documented the anti-oxidant activity and renal protective effects of SOSNPs against the damaging effects of MTX in rabbits.
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Affiliation(s)
- M A Saud
- Biotechnology and Environmental Center, University of Al-Fallujah, Fallujah, Al Anbar, Iraq
| | - N A Saud
- College of Education for Pure Sciences, Department of Biology, University of Anbar, Ramadi, Al Anbar, Iraq
| | - M A Hamad
- Biotechnology and Environmental Center, University of Al-Fallujah, Fallujah, Al Anbar, Iraq
| | - L Farhan Gar
- Biotechnology and Environmental Center, University of Al-Fallujah, Fallujah, Al Anbar, Iraq
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Karlina R, Flexeder C, Musiol S, Bhattacharyya M, Schneider E, Altun I, Gschwendtner S, Neumann AU, Nano J, Schloter M, Peters A, Schulz H, Schmidt‐Weber CB, Standl M, Traidl‐Hoffmann C, Alessandrini F, Ussar S. Differential effects of lung inflammation on insulin resistance in humans and mice. Allergy 2022; 77:2482-2497. [PMID: 35060125 DOI: 10.1111/all.15226] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 12/07/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND The rates of obesity, its associated diseases, and allergies are raising at alarming rates in most countries. House dust mites (HDM) are highly allergenic and exposure often associates with an urban sedentary indoor lifestyle, also resulting in obesity. The aim of this study was to investigate the epidemiological association and physiological impact of lung inflammation on obesity and glucose homeostasis. METHODS Epidemiological data from 2207 adults of the population-based KORA FF4 cohort were used to test associations between asthma and rhinitis with metrics of body weight and insulin sensitivity. To obtain functional insights, C57BL/6J mice were intranasally sensitized and challenged with HDM and simultaneously fed with either low-fat or high-fat diet for 12 weeks followed by a detailed metabolic and biochemical phenotyping of the lung, liver, and adipose tissues. RESULTS We found a direct association of asthma with insulin resistance but not body weight in humans. In mice, co-development of obesity and HDM-induced lung inflammation attenuated inflammation in lung and perigonadal fat, with little impact on body weight, but small shifts in the composition of gut microbiota. Exposure to HDM improved glucose tolerance, reduced hepatosteatosis, and increased energy expenditure and basal metabolic rate. These effects associate with increased activity of thermogenic adipose tissues independent of uncoupling protein 1. CONCLUSIONS Asthma associates with insulin resistance in humans, but HDM challenge results in opposing effects on glucose homeostasis in mice due to increased energy expenditure, reduced adipose inflammation, and hepatosteatosis.
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Affiliation(s)
- Ruth Karlina
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity Helmholtz Zentrum München Munich Germany
- German Center for Diabetes Research (DZD) Munich Germany
| | - Claudia Flexeder
- Institute of Epidemiology Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
- Institute and Clinic for Occupational, Social and Environmental Medicine University Hospital, LMU Munich Munich Germany
- German Center for Lung Research (DZL) Munich Germany
| | - Stephanie Musiol
- German Center for Lung Research (DZL) Munich Germany
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
| | - Madhumita Bhattacharyya
- Department of Environmental Medicine, Faculty of Medicine University of Augsburg Augsburg Germany
| | - Evelyn Schneider
- German Center for Lung Research (DZL) Munich Germany
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
| | - Irem Altun
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity Helmholtz Zentrum München Munich Germany
- German Center for Diabetes Research (DZD) Munich Germany
| | - Silvia Gschwendtner
- Research Unit for Comparative Microbiome Analysis Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg Germany
| | - Avidan U. Neumann
- Department of Environmental Medicine, Faculty of Medicine University of Augsburg Augsburg Germany
- Institute of Environmental Medicine Helmholtz Zentrum München, German Research Center for Environmental Health Augsburg Germany
| | - Jana Nano
- German Center for Diabetes Research (DZD) Munich Germany
- Institute of Epidemiology Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
| | - Michael Schloter
- Research Unit for Comparative Microbiome Analysis Helmholtz Zentrum München, German Research Center for Environmental Health Neuherberg Germany
| | - Annette Peters
- German Center for Diabetes Research (DZD) Munich Germany
- Institute of Epidemiology Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
| | - Holger Schulz
- Institute of Epidemiology Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
- German Center for Lung Research (DZL) Munich Germany
| | - Carsten B. Schmidt‐Weber
- German Center for Lung Research (DZL) Munich Germany
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
| | - Marie Standl
- Institute of Epidemiology Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
- German Center for Lung Research (DZL) Munich Germany
| | - Claudia Traidl‐Hoffmann
- Department of Environmental Medicine, Faculty of Medicine University of Augsburg Augsburg Germany
- Institute of Environmental Medicine Helmholtz Zentrum München, German Research Center for Environmental Health Augsburg Germany
- Environmental Medicine Technical University Munich Munich Germany
| | - Francesca Alessandrini
- German Center for Lung Research (DZL) Munich Germany
- Center of Allergy & Environment (ZAUM) Technical University of Munich and Helmholtz Zentrum München, German Research Center for Environmental Health Munich Germany
| | - Siegfried Ussar
- RG Adipocytes & Metabolism, Institute for Diabetes & Obesity Helmholtz Zentrum München Munich Germany
- German Center for Diabetes Research (DZD) Munich Germany
- Department of Medicine Technical University of Munich Munich Germany
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12
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Fu X, Gao Y, Yan W, Zhang Z, Sarker S, Yin Y, Liu Q, Feng J, Chen J. Preparation of eugenol nanoemulsions for antibacterial activities. RSC Adv 2022; 12:3180-3190. [PMID: 35425353 PMCID: PMC8979276 DOI: 10.1039/d1ra08184e] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/12/2022] [Indexed: 12/13/2022] Open
Abstract
Eugenol is a versatile plant essential oil, but its high volatility and low water solubility greatly limit its application. Accordingly, this study prepared eugenol nanoemulsions by a high-speed shearing technique. Through visual inspection and a series of characterizations, including dynamic light scattering, and confocal laser scanning microscopy, the optimized formula was determined to be 5% (w/w) oil phase (eugenol) and 8% (w/w) surfactant (Tween-80), and the optimized shearing time was 5 min. The optimized nanoemulsion had good stability, small droplets (85 nm), and uniform distribution. At a concentration of 0.02 mg μL−1, the nanoemulsion showed strong inhibition against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Scanning electron microscopy (SEM) images showed severe deformation and membrane rupture of both bacteria treated by the nanoemulsion. This result was further confirmed by the leakage of proteins in both bacteria after treatment. The results of reactive oxygen species (ROS) and malondialdehyde (MDA) measurements indicated that the increased levels of ROS in both bacteria treated by the nanoemulsion triggered lipid peroxidation, thus increasing the MDA levels, ultimately causing changes in cell membrane permeability and disruption of the membrane structure. In addition, the nanoemulsion had a small effect on the proliferation and apoptosis of hepatocytes (L02) and lung cells (BEAS-2B), indicating its good biocompatibility. In this study, we developed a novel eugenol nanoemulsion with high stability and good biological activity, which may provide a promising and effective method for wound treatment in the healthcare area. We developed a novel eugenol nanoemulsion with high stability and good biological activity, which may provide a promising and effective method for wound treatment in the healthcare area.![]()
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Affiliation(s)
- Xuan Fu
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Yuan Gao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Weiyao Yan
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Ziluo Zhang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Shovra Sarker
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Yinyan Yin
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Qi Liu
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Jianguo Feng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Jing Chen
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
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13
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Alqahtani S, Xia L, Jannasch A, Ferreira C, Franco J, Shannahan JH. Disruption of pulmonary resolution mediators contribute to exacerbated silver nanoparticle-induced acute inflammation in a metabolic syndrome mouse model. Toxicol Appl Pharmacol 2021; 431:115730. [PMID: 34601004 PMCID: PMC8545917 DOI: 10.1016/j.taap.2021.115730] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/08/2021] [Accepted: 09/22/2021] [Indexed: 12/18/2022]
Abstract
Pre-existing conditions modulate sensitivity to numerous xenobiotic exposures such as air pollution. Specifically, individuals suffering from metabolic syndrome (MetS) demonstrate enhanced acute inflammatory responses following particulate matter inhalation. The mechanisms associated with these exacerbated inflammatory responses are unknown, impairing interventional strategies and our understanding of susceptible populations. We hypothesize MetS-associated lipid dysregulation influences mediators of inflammatory resolution signaling contributing to increased acute pulmonary toxicity. To evaluate this hypothesis, healthy and MetS mouse models were treated with either 18-hydroxy eicosapentaenoic acid (18-HEPE), 14-hydroxy docosahexaenoic acid (14-HDHA), 17-hydroxy docosahexaenoic acid (17-HDHA), or saline (control) via intraperitoneal injection prior to oropharyngeal aspiration of silver nanoparticles (AgNP). In mice receiving saline treatment, AgNP exposure resulted in an acute pulmonary inflammatory response that was exacerbated in MetS mice. A targeted lipid assessment demonstrated 18-HEPE, 14-HDHA, and 17-HDHA treatments altered lung levels of specialized pro-resolving lipid mediators (SPMs). 14-HDHA and 17-HDHA treatments more efficiently reduced the exacerbated acute inflammatory response in AgNP exposed MetS mice as compared to 18-HEPE. This included decreased neutrophilic influx, diminished induction of inflammatory cytokines/chemokines, and reduced alterations in SPMs. Examination of SPM receptors determined baseline reductions in MetS mice compared to healthy as well as decreases due to AgNP exposure. Overall, these results demonstrate AgNP exposure disrupts inflammatory resolution, specifically 14-HDHA and 17-HDHA derived SPMs, in MetS contributing to exacerbated acute inflammatory responses. Our findings identify a potential mechanism responsible for enhanced susceptibility in MetS that can be targeted for interventional therapeutic approaches.
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Affiliation(s)
- Saeed Alqahtani
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States; National Center for Pharmaceuticals, Life Science and Environment Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
| | - Li Xia
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
| | - Amber Jannasch
- Purdue Metabolite Profiling Facility, Purdue University, West Lafayette, IN, United States
| | - Christina Ferreira
- Purdue Metabolite Profiling Facility, Purdue University, West Lafayette, IN, United States
| | - Jackeline Franco
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - Jonathan H Shannahan
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States.
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14
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Matharu RK, Cheong YK, Ren G, Edirisinghe M, Ciric L. Exploiting the antiviral potential of intermetallic nanoparticles. EMERGENT MATERIALS 2021; 5:1251-1260. [PMID: 34778706 PMCID: PMC8577177 DOI: 10.1007/s42247-021-00306-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Viral pandemic outbreaks cause a significant burden on global health as well as healthcare expenditure. The use of antiviral agents not only reduces the spread of viral pathogens but also diminishes the likelihood of them causing infection. The antiviral properties of novel copper-silver and copper-zinc intermetallic nanoparticles against Escherichia coli bacteriophage MS2 (RNA virus) and Escherichia coli bacteriophage T4 (DNA virus) are presented. The intermetallic nanoparticles were spherical in shape and were between 90 and 120 nm. Antiviral activity was assessed at concentrations ranging from 0.05 to 2.0 wt/v% for 3 and 24 h using DNA and RNA virus model organisms. Both types of nanoparticles demonstrated strong potency towards RNA viruses (> 89% viral reduction), whilst copper-silver nanoparticles were slightly more toxic towards DNA viruses when compared to copper-zinc nanoparticles. Both nanoparticles were then incorporated into polymeric fibres (carrier) to investigate their antiviral effectiveness when composited into polymeric matrices. Fibres containing copper-silver nanoparticles exhibited favourable antiviral properties, with a viral reduction of 75% after 3 h of exposure. The excellent antiviral properties of the intermetallic nanoparticles reported in this study against both types of viruses together with their unique material properties can make them significant alternatives to conventional antiviral therapies and decontamination agents.
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Affiliation(s)
- Rupy Kaur Matharu
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
- Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London, WC1E 6BT UK
| | - Yuen-Ki Cheong
- School of Engineering and Computer Science, University of Hertfordshire, Hatfield, AL10 9AB UK
| | - Guogang Ren
- School of Engineering and Computer Science, University of Hertfordshire, Hatfield, AL10 9AB UK
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE UK
| | - Lena Ciric
- Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London, WC1E 6BT UK
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15
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Stater EP, Sonay AY, Hart C, Grimm J. The ancillary effects of nanoparticles and their implications for nanomedicine. NATURE NANOTECHNOLOGY 2021; 16:1180-1194. [PMID: 34759355 PMCID: PMC9031277 DOI: 10.1038/s41565-021-01017-9] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 09/22/2021] [Indexed: 05/12/2023]
Abstract
Nanoparticles are often engineered as a scaffolding system to combine targeting, imaging and/or therapeutic moieties into a unitary agent. However, mostly overlooked, the nanomaterial itself interacts with biological systems exclusive of application-specific particle functionalization. This nanoparticle biointerface has been found to elicit specific biological effects, which we term 'ancillary effects'. In this Review, we describe the current state of knowledge of nanobiology gleaned from existing studies of ancillary effects with the objectives to describe the potential of nanoparticles to modulate biological effects independently of any engineered function; evaluate how these effects might be relevant for nanomedicine design and functional considerations, particularly how they might be useful to inform clinical decision-making; identify potential clinical harm that arises from adverse nanoparticle interactions with biology; and, finally, highlight the current lack of knowledge in this area as both a barrier and an incentive to the further development of nanomedicine.
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Affiliation(s)
- Evan P Stater
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
| | - Ali Y Sonay
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cassidy Hart
- Department of General Surgery, Lankenau Medical Center, Wynnewood, PA, USA
| | - Jan Grimm
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA.
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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16
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Wielgat P, Niemirowicz-Laskowska K, Wilczewska AZ, Car H. Sialic Acid-Modified Nanoparticles-New Approaches in the Glioma Management-Perspective Review. Int J Mol Sci 2021; 22:ijms22147494. [PMID: 34299113 PMCID: PMC8304714 DOI: 10.3390/ijms22147494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/02/2021] [Accepted: 07/10/2021] [Indexed: 12/23/2022] Open
Abstract
The cell surface is covered by a dense and complex network of glycans attached to the membrane proteins and lipids. In gliomas, the aberrant sialylation, as the final stage of glycosylation, is an important regulatory mechanism of malignant cell behavior and correlates with worse prognosis. Better understanding of the role of sialylation in cellular and molecular processes opens a new way in the development of therapeutic tools for human brain tumors. According to the recent clinical observation, the cellular heterogeneity, activity of brain cancer stem cells (BCSCs), immune evasion, and function of the blood–brain barrier (BBB) are attractive targets for new therapeutic strategies. In this review, we summarize the importance of sialic acid-modified nanoparticles in brain tumor progression.
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Affiliation(s)
- Przemyslaw Wielgat
- Department of Clinical Pharmacology, Medical University of Bialystok, Waszyngtona 15A, 15-274 Bialystok, Poland;
- Correspondence: (P.W.); (K.N.-L.); Tel.: +48-85-7450647 (P.W.); +48-85-7485554 (K.N.-L.)
| | - Katarzyna Niemirowicz-Laskowska
- Department of Experimental Pharmacology, Medical University of Bialystok, Szpitalna 37, 15-265 Bialystok, Poland
- Correspondence: (P.W.); (K.N.-L.); Tel.: +48-85-7450647 (P.W.); +48-85-7485554 (K.N.-L.)
| | | | - Halina Car
- Department of Clinical Pharmacology, Medical University of Bialystok, Waszyngtona 15A, 15-274 Bialystok, Poland;
- Department of Experimental Pharmacology, Medical University of Bialystok, Szpitalna 37, 15-265 Bialystok, Poland
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17
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Ferdous Z, Al-Salam S, Yuvaraju P, Ali BH, Nemmar A. Remote effects and biodistribution of pulmonary instilled silver nanoparticles in mice. NANOIMPACT 2021; 22:100310. [PMID: 35559967 DOI: 10.1016/j.impact.2021.100310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 02/27/2021] [Accepted: 03/09/2021] [Indexed: 06/15/2023]
Abstract
Silver nanoparticles (AgNPs) are the most commonly used nanoparticles (NPs) owing to their anti-microbial properties, and the pulmonary system provides a major portal of entry for these NPs used in aerosolized products. AgNPs have the potential to cause pulmonary toxicity, cross the alveolar-capillary barrier, and distribute to remote organs following pulmonary exposure. The mechanism underlying the effects of AgNPs, secondary to lung exposure, on the major organs including liver, spleen, kidney and brain, however, is still not completely understood. The aim of this study was to analyze the organ toxicity and distribution of pulmonary exposure to single dose of 5 mg/kg AgNPs (10 nm) with varying coatings (polyvinylpyrrolidone and citrate), at different time points (1 and 7 days), in Balb/C mice. Silver ions (Ag+) were used as ionic control. Histological evidence of inflammation was observed in lungs for both types of AgNPs. Markers of inflammation including tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) were significantly increased in lung, brain and liver in AgNPs exposed animals. Ag+ ions caused significant increase of TNF-α and IL-6 in the spleen and kidney. Significant increase of reduced glutathione, nitric oxide, and 8-isoprostane was observed in most of the organs investigated. Furthermore, AgNPs induced DNA damage and apoptosis in the lung, liver and brain. The biodistribution showed that, AgNPs were distributed mainly in the spleen, liver, lung and little in kidney and brain. Comparatively, reduced amount of Ag was detected in most organs 7 days after exposure, except for AgAc in the kidney and brain. In conclusion, pulmonary exposure to AgNPs caused oxidative stress markers, inflammation, DNA damage and biodistribution in remote organs. These findings provide a novel mechanistic insight into the pathophysiological effects and tissue distribution of lung exposure to AgNPs.
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Affiliation(s)
- Zannatul Ferdous
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates
| | - Suhail Al-Salam
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, P.O Box 17666, Al Ain, United Arab Emirates
| | - Priya Yuvaraju
- Department of Pharmacology, College of Medicine and Health Sciences, United Arab Emirates University, P.O Box 17666, Al Ain, United Arab Emirates
| | - Badreldin H Ali
- Department of Pharmacology and Clinical Pharmacy, Sultan Qaboos University, P.O. Box 35, Muscat 123, Al-Khod, Oman
| | - Abderrahim Nemmar
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates; Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates.
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18
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Nicholas TP, Haick AK, Workman TW, Griffith WC, Nolin JD, Kavanagh TJ, Faustman EM, Altemeier WA. The effects of genotype × phenotype interactions on silver nanoparticle toxicity in organotypic cultures of murine tracheal epithelial cells. Nanotoxicology 2020; 14:908-928. [PMID: 32574512 DOI: 10.1080/17435390.2020.1777475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Silver nanoparticles (AgNP) are used in multiple applications but primarily in the manufacturing of antimicrobial products. Previous studies have identified AgNP toxicity in airway epithelial cells, but no in vitro studies to date have used organotypic cultures as a high-content in vitro model of the conducting airway to characterize the effects of interactions between host genetic and acquired factors, or gene × phenotype interactions (G × P), on AgNP toxicity. In the present study, we derived organotypic cultures from primary murine tracheal epithelial cells (MTEC) to characterize nominal and dosimetric dose-response relationships for AgNPs with a gold core on barrier dysfunction, glutathione (GSH) depletion, reactive oxygen species (ROS) production, lipid peroxidation, and cytotoxicity across two genotypes (A/J and C57BL/6J mice), two phenotypes ('Normal' and 'Type 2 [T2]-Skewed'), and two exposures (an acute exposure of 24 h and a subacute exposure of 4 h, every other day, over 5 days [5 × 4 h]). We characterized the 'T2-Skewed' phenotype as an in vitro model of chronic respiratory diseases, which was marked by increased sensitivity to AgNP-induced barrier dysfunction, GSH depletion, ROS production, lipid peroxidation, and cytotoxicity, suggesting that asthmatics are a sensitive population to AgNP exposures in occupational settings. This also suggests that exposure limits, which should be based upon the most sensitive population, should be derived using in vitro and in vivo models of chronic respiratory diseases. This study highlights the importance of considering dosimetry as well as G × P effects when screening and prioritizing potential respiratory toxicants. Such in vitro studies can be used to inform regulatory policy aimed at special protections for all populations.
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Affiliation(s)
- Tyler P Nicholas
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA.,Center for Lung Biology, University of Washington, Seattle, WA, USA
| | - Anoria K Haick
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Tomomi W Workman
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - William C Griffith
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - James D Nolin
- Center for Lung Biology, University of Washington, Seattle, WA, USA
| | - Terrance J Kavanagh
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA.,Center for Lung Biology, University of Washington, Seattle, WA, USA
| | - Elaine M Faustman
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - William A Altemeier
- Center for Lung Biology, University of Washington, Seattle, WA, USA.,Department of Medicine, University of Washington, Seattle, WA, USA
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19
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Ipe DS, Kumar PTS, Love RM, Hamlet SM. Silver Nanoparticles at Biocompatible Dosage Synergistically Increases Bacterial Susceptibility to Antibiotics. Front Microbiol 2020; 11:1074. [PMID: 32670214 PMCID: PMC7326045 DOI: 10.3389/fmicb.2020.01074] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/29/2020] [Indexed: 12/21/2022] Open
Abstract
Antibiotics used to treat bacterial infections can become ineffective over time or result in the emergence of antibiotic resistant pathogens. With the advent of nanotechnology, silver nanoparticles (AgNPs) have gained significant attention as a therapeutic agent due to the well-known antimicrobial properties of silver. However, there are concerns and limited literature on the potential cytotoxicity of nanoparticles at effective antimicrobial concentrations. AgNPs prepared from silver nitrate with glucose reduction were characterized by surface plasmon resonance, dynamic light scattering, zeta potential analysis and transmission electron microscopy. The cytotoxicity of AgNPs towards human gingival fibroblasts over 7 days was determined using cell proliferation assays and confocal microscopy. AgNP MIC and antibacterial effects alone and in combination with 11 antibiotics were determined against a panel of nine microbial species including gram-positive and gram-negative bacterial species. AgNPs concentrations ≤ 1 μg/mL were non-cytotoxic but also showed no antibacterial effects. However, when combined with each of eleven antibiotics, the biocompatible concentration of AgNPs (1 μg/mL) resulted in significant inhibition of bacterial growth for multiple bacterial species that were resistant to either the antibiotics or AgNPs alone. This study presents a promising strategy with further testing in vivo, to develop novel antimicrobial agents and strategies to confront emerging antimicrobial resistance.
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Affiliation(s)
- Deepak S Ipe
- School of Dentistry and Oral Health, Griffith University, Gold Coast, QLD, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - P T Sudheesh Kumar
- School of Dentistry and Oral Health, Griffith University, Gold Coast, QLD, Australia
| | - Robert M Love
- School of Dentistry and Oral Health, Griffith University, Gold Coast, QLD, Australia
| | - Stephen M Hamlet
- School of Dentistry and Oral Health, Griffith University, Gold Coast, QLD, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
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20
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Carrola J, Bastos V, Daniel‐da‐Silva AL, Gil AM, Santos C, Oliveira H, Duarte IF. Macrophage Metabolomics Reveals Differential Metabolic Responses to Subtoxic Levels of Silver Nanoparticles and Ionic Silver. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Joana Carrola
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro 3810‐193 Aveiro Portugal
| | - Verónica Bastos
- CESAM & Department of Biology University of Aveiro 3810‐193 Aveiro Portugal
| | - Ana L. Daniel‐da‐Silva
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro 3810‐193 Aveiro Portugal
| | - Ana M. Gil
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro 3810‐193 Aveiro Portugal
| | - Conceição Santos
- CESAM & Department of Biology University of Aveiro 3810‐193 Aveiro Portugal
- Department of Biology Faculty of Sciences University of Porto 4169‐007 Porto Portugal
| | - Helena Oliveira
- CESAM & Department of Biology University of Aveiro 3810‐193 Aveiro Portugal
| | - Iola F. Duarte
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro 3810‐193 Aveiro Portugal
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21
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Alqahtani S, Kobos LM, Xia L, Ferreira C, Franco J, Du X, Shannahan JH. Exacerbation of Nanoparticle-Induced Acute Pulmonary Inflammation in a Mouse Model of Metabolic Syndrome. Front Immunol 2020; 11:818. [PMID: 32457752 PMCID: PMC7221136 DOI: 10.3389/fimmu.2020.00818] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/09/2020] [Indexed: 12/15/2022] Open
Abstract
Nanotechnology has the capacity to revolutionize numerous fields and processes, however, exposure-induced health effects are of concern. The majority of nanoparticle (NP) safety evaluations have been performed utilizing healthy models and have demonstrated the potential for pulmonary toxicity. A growing proportion of individuals suffer diseases that may enhance their susceptibility to exposures. Specifically, metabolic syndrome (MetS) is increasingly prevalent and is a risk factor for the development of chronic diseases including type-2 diabetes, cardiovascular disease, and cancer. MetS is a combination of conditions which includes dyslipidemia, obesity, hypertension, and insulin resistance. Due to the role of lipids in inflammatory signaling, we hypothesize that MetS-associated dyslipidemia may modulate NP-induced immune responses. To examine this hypothesis, mice were fed either a control diet or a high-fat western diet (HFWD) for 14-weeks. A subset of mice were treated with atorvastatin for the final 7-weeks to modulate lipids. Mice were exposed to silver NPs (AgNPs) via oropharyngeal aspiration and acute toxicity endpoints were evaluated 24-h post-exposure. Mice on the HFWD demonstrated MetS-associated alterations such as increased body weight and cholesterol compared to control-diet mice. Cytometry analysis of bronchoalveolar lavage fluid (BALF) demonstrated exacerbation of AgNP-induced neutrophilic influx in MetS mice compared to healthy. Additionally, enhanced proinflammatory mRNA expression and protein levels of monocyte chemoattractant protein-1, macrophage inflammatory protein-2, and interleukin-6 were observed in MetS mice compared to healthy following exposure. AgNP exposure reduced mRNA expression of enzymes involved in lipid metabolism, such as arachidonate 5-lipoxygenase and arachidonate 15-lipoxygenase in both mouse models. Exposure to AgNPs decreased inducible nitric oxide synthase gene expression in MetS mice. An exploratory lipidomic profiling approach was utilized to screen lipid mediators involved in pulmonary inflammation. This assessment indicates the potential for reduced levels of lipids mediators of inflammatory resolution (LMIR) in the MetS model compared to healthy mice following AgNP exposure. Statin treatment inhibited enhanced inflammatory responses as well as alterations in LMIR observed in the MetS model due to AgNP exposure. Taken together our data suggests that MetS exacerbates the acute toxicity induced by AgNPs exposure possibly via a disruption of LMIR leading to enhanced pulmonary inflammation.
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Affiliation(s)
- Saeed Alqahtani
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States.,National Center for Pharmaceuticals, Life Science and Environment Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
| | - Lisa M Kobos
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
| | - Li Xia
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
| | - Christina Ferreira
- Purdue Metabolite Profiling Facility, Purdue University, West Lafayette, IN, United States
| | - Jackeline Franco
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - Xuqin Du
- Department of Occupational Medicine and Toxicology, Beijing ChaoYang Hospital, Capital Medical University, Beijing, China
| | - Jonathan H Shannahan
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
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22
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Huang Q, Zhang J, Zhang Y, Timashev P, Ma X, Liang XJ. Adaptive changes induced by noble-metal nanostructures in vitro and in vivo. Theranostics 2020; 10:5649-5670. [PMID: 32483410 PMCID: PMC7254997 DOI: 10.7150/thno.42569] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 03/01/2020] [Indexed: 12/26/2022] Open
Abstract
The unique features of noble-metal nanostructures (NMNs) are leading to unprecedented expansion of research and exploration of their application in therapeutics, diagnostics and bioimaging fields. With the ever-growing applications of NMNs, both therapeutic and environmental NMNs are likely to be exposed to tissues and organs, requiring careful studies towards their biological effects in vitro and in vivo. Upon NMNs exposure, tissues and cells may undergo a series of adaptive changes both in morphology and function. At the cellular level, the accumulation of NMNs in various subcellular organelles including lysosomes, endoplasmic reticulum, Golgi apparatus, mitochondria, and nucleus may interfere with their functions, causing changes in a variety of cellular functions, such as digestion, protein synthesis and secretion, energy metabolism, mitochondrial respiration, and proliferation. In animals, retention of NMNs in metabolic-, respiratory-, immune-related, and other organs can trigger significant physiological and pathological changes to these organs and influence their functions. Exploring how NMNs interact with tissues and cells and the underlying mechanisms are of vital importance for their future applications. Here, we illustrate the characteristics of NMNs-induced adaptive changes both in vitro and in vivo. Potential strategies in the design of NMNs are also discussed to take advantage of beneficial adaptive changes and avoid unfavorable changes for the proper implementation of these nanoplatforms.
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Affiliation(s)
- Qianqian Huang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Sino-Danish Center for Education and Research, Sino-Danish College of University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinchao Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Yuanyuan Zhang
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Xiaowei Ma
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Sino-Danish Center for Education and Research, Sino-Danish College of University of Chinese Academy of Sciences, Beijing, 100049, China
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23
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Ferdous Z, Nemmar A. Health Impact of Silver Nanoparticles: A Review of the Biodistribution and Toxicity Following Various Routes of Exposure. Int J Mol Sci 2020; 21:E2375. [PMID: 32235542 PMCID: PMC7177798 DOI: 10.3390/ijms21072375] [Citation(s) in RCA: 349] [Impact Index Per Article: 87.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/14/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022] Open
Abstract
Engineered nanomaterials (ENMs) have gained huge importance in technological advancements over the past few years. Among the various ENMs, silver nanoparticles (AgNPs) have become one of the most explored nanotechnology-derived nanostructures and have been intensively investigated for their unique physicochemical properties. The widespread commercial and biomedical application of nanosilver include its use as a catalyst and an optical receptor in cosmetics, electronics and textile engineering, as a bactericidal agent, and in wound dressings, surgical instruments, and disinfectants. This, in turn, has increased the potential for interactions of AgNPs with terrestrial and aquatic environments, as well as potential exposure and toxicity to human health. In the present review, after giving an overview of ENMs, we discuss the current advances on the physiochemical properties of AgNPs with specific emphasis on biodistribution and both in vitro and in vivo toxicity following various routes of exposure. Most in vitro studies have demonstrated the size-, dose- and coating-dependent cellular uptake of AgNPs. Following NPs exposure, in vivo biodistribution studies have reported Ag accumulation and toxicity to local as well as distant organs. Though there has been an increase in the number of studies in this area, more investigations are required to understand the mechanisms of toxicity following various modes of exposure to AgNPs.
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Affiliation(s)
- Zannatul Ferdous
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666 Al Ain, UAE
| | - Abderrahim Nemmar
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666 Al Ain, UAE
- Zayed Center for Health Sciences, United Arab Emirates University, P.O. Box 17666 Al Ain, UAE
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24
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Chen Y, Guan M, Ren R, Gao C, Cheng H, Li Y, Gao B, Wei Y, Fu J, Sun J, Xiong W. Improved Immunoregulation of Ultra-Low-Dose Silver Nanoparticle-Loaded TiO 2 Nanotubes via M2 Macrophage Polarization by Regulating GLUT1 and Autophagy. Int J Nanomedicine 2020; 15:2011-2026. [PMID: 32273699 PMCID: PMC7102919 DOI: 10.2147/ijn.s242919] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/10/2020] [Indexed: 12/26/2022] Open
Abstract
Introduction The bone regeneration of endosseous implanted biomaterials is often impaired by the host immune response, especially macrophage-related inflammation which plays an important role in the bone healing process. Thus, it is a promising strategy to design an osteo-immunomodulatory biomaterial to take advantage of the macrophage-related immune response and improve the osseointegration performance of the implant. Methods In this study, we developed an antibacterial silver nanoparticle-loaded TiO2 nanotubes (Ag@TiO2-NTs) using an electrochemical anodization method to make the surface modification and investigated the influences of Ag@TiO2-NTs on the macrophage polarization, osteo-immune microenvironment as well as its potential molecular mechanisms in vitro and in vivo. Results The results showed that Ag@TiO2-NTs with controlled releasing of ultra-low-dose Ag+ ions had the excellent ability to induce the macrophage polarization towards the M2 phenotype and create a suitable osteo-immune microenvironment in vitro, via inhibiting PI3K/Akt, suppressing the downstream effector GLUT1, and activating autophagy. Moreover, Ag@TiO2-NTs surface could improve bone formation, suppress inflammation, and promote osteo-immune microenvironment compared to the TiO2-NTs and polished Ti surfaces in vivo. These findings suggested that Ag@TiO2-NTs with controlled releasing of ultra-low-dose Ag+ ions could not only inhibit the inflammation process but also promote the bone healing by inducing healing-associated M2 polarization. Discussion Using this surface modification strategy to modulate the macrophage-related immune response, rather than prevent the host response, maybe a promising strategy for implant surgeries in the future.
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Affiliation(s)
- Yangmengfan Chen
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Ming Guan
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Ranyue Ren
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Chenghao Gao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Hao Cheng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Yong Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Yong Wei
- The State Key Laboratory of Refractories and Metallurgy, School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Jijiang Fu
- The State Key Laboratory of Refractories and Metallurgy, School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China
| | - Jun Sun
- Department of Biochemistry and Molecular Biology, Basic Medical School, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Wei Xiong
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
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25
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Li Y, Cummins E. Hazard characterization of silver nanoparticles for human exposure routes. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:704-725. [PMID: 32167009 DOI: 10.1080/10934529.2020.1735852] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/21/2020] [Accepted: 02/23/2020] [Indexed: 05/23/2023]
Abstract
Silver nanoparticles (AgNPs) have been widely used for a multitude of applications without full comprehensive knowledge regarding their safety. In particular, lack of data on hazard characterization may lead to uncertainties regarding potential human health risk. To provide the foundation for human health risk assessment of AgNPs, this study evaluates existing hazard characterization data, including reported pharmacokinetics, symptoms, and their corresponding dose-response relationships. Human equivalent relationships are also provided by extrapolation from animal dose-response relationships. From the data analyzed, it appears that AgNPs may persist for long periods (from days to years) in the human body. It was found that AgNP toxicity on traditional major targets of exogenous substances were generally underestimated. Some omissions of toxicity on sensitive systems in the AgNP toxicity assessment require attention, such as reprotoxicity and neurotoxicity. The necessity of the establishment of toxicity tests specifically for nanomaterials is highlighted. The scientific basis of a toxicity testing strategy is advised by this study, which paves the way for the monitoring and regulation of the ENP utilization in various industries.
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Affiliation(s)
- Yingzhu Li
- School of Biosystems and Food Engineering, Agriculture & Food Science Centre, University College Dublin (UCD), National University of Ireland, Dublin, Ireland
| | - Enda Cummins
- School of Biosystems and Food Engineering, Agriculture & Food Science Centre, University College Dublin (UCD), National University of Ireland, Dublin, Ireland
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26
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Sánchez-López E, Gomes D, Esteruelas G, Bonilla L, Lopez-Machado AL, Galindo R, Cano A, Espina M, Ettcheto M, Camins A, Silva AM, Durazzo A, Santini A, Garcia ML, Souto EB. Metal-Based Nanoparticles as Antimicrobial Agents: An Overview. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E292. [PMID: 32050443 PMCID: PMC7075170 DOI: 10.3390/nano10020292] [Citation(s) in RCA: 480] [Impact Index Per Article: 120.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023]
Abstract
Metal-based nanoparticles have been extensively investigated for a set of biomedical applications. According to the World Health Organization, in addition to their reduced size and selectivity for bacteria, metal-based nanoparticles have also proved to be effective against pathogens listed as a priority. Metal-based nanoparticles are known to have non-specific bacterial toxicity mechanisms (they do not bind to a specific receptor in the bacterial cell) which not only makes the development of resistance by bacteria difficult, but also broadens the spectrum of antibacterial activity. As a result, a large majority of metal-based nanoparticles efficacy studies performed so far have shown promising results in both Gram-positive and Gram-negative bacteria. The aim of this review has been a comprehensive discussion of the state of the art on the use of the most relevant types of metal nanoparticles employed as antimicrobial agents. A special emphasis to silver nanoparticles is given, while others (e.g., gold, zinc oxide, copper, and copper oxide nanoparticles) commonly used in antibiotherapy are also reviewed. The novelty of this review relies on the comparative discussion of the different types of metal nanoparticles, their production methods, physicochemical characterization, and pharmacokinetics together with the toxicological risk encountered with the use of different types of nanoparticles as antimicrobial agents. Their added-value in the development of alternative, more effective antibiotics against multi-resistant Gram-negative bacteria has been highlighted.
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Affiliation(s)
- Elena Sánchez-López
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Juan Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Daniela Gomes
- Faculty of Pharmacy (FFUC), Department of Pharmaceutical Technology, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal;
| | - Gerard Esteruelas
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
| | - Lorena Bonilla
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
| | - Ana Laura Lopez-Machado
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Juan Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Ruth Galindo
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Amanda Cano
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Juan Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Marta Espina
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Miren Ettcheto
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Juan Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
- Department of Pharmacology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain
| | - Antoni Camins
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Juan Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
- Department of Pharmacology and Therapeutic Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain
| | - Amélia M. Silva
- Department of Biology and Environment, University of Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, P-5001-801 Vila Real, Portugal;
- Centre for Research and Technology of Agro-Environmental and Biological Sciences, CITAB, UTAD, Quinta de Prados, P-5001-801 Vila Real, Portugal
| | - Alessandra Durazzo
- CREA—Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy;
| | - Antonello Santini
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy;
| | - Maria L. Garcia
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (G.E.); (L.B.); (A.L.L.-M.); (R.G.); (A.C.); (M.E.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Networking Research Centre of Neurodegenerative Disease (CIBERNED), Instituto de Salud Juan Carlos III, 28031 Madrid, Spain; (M.E.); (A.C.)
| | - Eliana B. Souto
- Faculty of Pharmacy (FFUC), Department of Pharmaceutical Technology, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal;
- CEB—Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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27
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Roach KA, Stefaniak AB, Roberts JR. Metal nanomaterials: Immune effects and implications of physicochemical properties on sensitization, elicitation, and exacerbation of allergic disease. J Immunotoxicol 2019; 16:87-124. [PMID: 31195861 PMCID: PMC6649684 DOI: 10.1080/1547691x.2019.1605553] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 03/15/2019] [Accepted: 04/05/2019] [Indexed: 12/25/2022] Open
Abstract
The recent surge in incorporation of metallic and metal oxide nanomaterials into consumer products and their corresponding use in occupational settings have raised concerns over the potential for metals to induce size-specific adverse toxicological effects. Although nano-metals have been shown to induce greater lung injury and inflammation than their larger metal counterparts, their size-related effects on the immune system and allergic disease remain largely unknown. This knowledge gap is particularly concerning since metals are historically recognized as common inducers of allergic contact dermatitis, occupational asthma, and allergic adjuvancy. The investigation into the potential for adverse immune effects following exposure to metal nanomaterials is becoming an area of scientific interest since these characteristically lightweight materials are easily aerosolized and inhaled, and their small size may allow for penetration of the skin, which may promote unique size-specific immune effects with implications for allergic disease. Additionally, alterations in physicochemical properties of metals in the nano-scale greatly influence their interactions with components of biological systems, potentially leading to implications for inducing or exacerbating allergic disease. Although some research has been directed toward addressing these concerns, many aspects of metal nanomaterial-induced immune effects remain unclear. Overall, more scientific knowledge exists in regards to the potential for metal nanomaterials to exacerbate allergic disease than to their potential to induce allergic disease. Furthermore, effects of metal nanomaterial exposure on respiratory allergy have been more thoroughly-characterized than their potential influence on dermal allergy. Current knowledge regarding metal nanomaterials and their potential to induce/exacerbate dermal and respiratory allergy are summarized in this review. In addition, an examination of several remaining knowledge gaps and considerations for future studies is provided.
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Affiliation(s)
- Katherine A Roach
- a Allergy and Clinical Immunology Branch (ACIB) , National Institute of Occupational Safety and Health (NIOSH) , Morgantown , WV , USA
- b School of Pharmacy , West Virginia University , Morgantown , WV , USA
| | - Aleksandr B Stefaniak
- c Respiratory Health Division (RHD) , National Institute of Occupational Safety and Health (NIOSH) , Morgantown , WV , USA
| | - Jenny R Roberts
- a Allergy and Clinical Immunology Branch (ACIB) , National Institute of Occupational Safety and Health (NIOSH) , Morgantown , WV , USA
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28
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Engin AB, Engin A. Nanoantibiotics: A Novel Rational Approach to Antibiotic Resistant Infections. Curr Drug Metab 2019; 20:720-741. [DOI: 10.2174/1389200220666190806142835] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/19/2019] [Accepted: 07/19/2019] [Indexed: 01/09/2023]
Abstract
Background:The main drawbacks for using conventional antimicrobial agents are the development of multiple drug resistance due to the use of high concentrations of antibiotics for extended periods. This vicious cycle often generates complications of persistent infections, and intolerable antibiotic toxicity. The problem is that while all new discovered antimicrobials are effective and promising, they remain as only short-term solutions to the overall challenge of drug-resistant bacteria.Objective:Recently, nanoantibiotics (nAbts) have been of tremendous interest in overcoming the drug resistance developed by several pathogenic microorganisms against most of the commonly used antibiotics. Compared with free antibiotic at the same concentration, drug delivered via a nanoparticle carrier has a much more prominent inhibitory effect on bacterial growth, and drug toxicity, along with prolonged drug release. Additionally, multiple drugs or antimicrobials can be packaged within the same smart polymer which can be designed with stimuli-responsive linkers. These stimuli-responsive nAbts open up the possibility of creating multipurpose and targeted antimicrobials. Biofilm formation still remains the leading cause of conventional antibiotic treatment failure. In contrast to conventional antibiotics nAbts easily penetrate into the biofilm, and selectively target biofilm matrix constituents through the introduction of bacteria specific ligands. In this context, various nanoparticles can be stabilized and functionalized with conventional antibiotics. These composites have a largely enhanced bactericidal efficiency compared to the free antibiotic.Conclusion:Nanoparticle-based carriers deliver antibiotics with better biofilm penetration and lower toxicity, thus combating bacterial resistance. However, the successful adaptation of nanoformulations to clinical practice involves a detailed assessment of their safety profiles and potential immunotoxicity.
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Affiliation(s)
- Ayse Basak Engin
- Faculty of Pharmacy, Department of Toxicology, Gazi University, Ankara, Turkey
| | - Atilla Engin
- Faculty of Medicine, Department of General Surgery, Gazi University, Ankara, Turkey
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29
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Murugesan K, Koroth J, Srinivasan PP, Singh A, Mukundan S, Karki SS, Choudhary B, Gupta CM. Effects of green synthesised silver nanoparticles (ST06-AgNPs) using curcumin derivative (ST06) on human cervical cancer cells (HeLa) in vitro and EAC tumor bearing mice models. Int J Nanomedicine 2019; 14:5257-5270. [PMID: 31409988 PMCID: PMC6646051 DOI: 10.2147/ijn.s202404] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 05/14/2019] [Indexed: 12/12/2022] Open
Abstract
Background In recent years, green synthesized silver nanoparticles have been increasingly investigated for their anti-cancer potential. In the present study, we aimed at the biosynthesis of silver nanoparticles (AgNPs) using a curcumin derivative, ST06. Although, the individual efficacies of silver nanoparticles or curcumin derivatives have been studied previously, the synergistic cytotoxic effects of curcumin derivative and silver nanoparticles in a single nanoparticulate formulation have not been studied earlier specifically on animal models. This makes this study novel compared to the earlier synthesized curcumin derivative or silver nanoparticles studies. The aim of the study was to synthesize ST06 coated silver nanoparticles (ST06-AgNPs) using ST06 as both reducing and coating agent. Methods The synthesized nanoparticles AgNPs and ST06-AgNPs were characterised for the particle size distribution, morphology, optical properties and surface charge by using UV-visible spectroscopy, dynamic light scattering (DLS) and transmission electron microscopy (TEM). Elemental composition and structural properties were studied by energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction spectroscopy (XRD). The presence of ST06 as capping agent was demonstrated by Fourier transform infrared spectroscopy (FTIR). Results The synthesized nanoparticles (ST06-AgNPs) were spherical and had a size distribution in the range of 50–100 nm. UV-Vis spectroscopy displayed a specific silver plasmon peak at 410 nm. The in vitro cytotoxicity effects of ST06 and ST06-AgNPs, as assessed by MTT assay, showed significant growth inhibition of human cervical cancer cell line (HeLa). In addition, studies carried out in EAC tumor-induced mouse model (Ehrlich Ascites carcinoma) using ST06-AgNPs, revealed that treatment of the animals with these nanoparticles resulted in a significant reduction in the tumor growth, compared to the control group animals. Conclusion In conclusion, green synthesized ST06-AgNPs exhibited superior anti-tumor efficacy than the free ST06 or AgNPs with no acute toxicity under both in vitro and in vivo conditions. The tumor suppression is associated with the intrinsic apoptotic pathway. Together, the results of this study suggest that ST06-AgNPs could be considered as a potential option for the treatment of solid tumors.
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Affiliation(s)
| | - Jinsha Koroth
- Institute of Bioinformatics and Applied Biotechnology (IBAB) , Bangalore, India.,Department of Pharmaceutical Chemistry, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | | | - Amrita Singh
- Water Analysis Laboratory, Nanomaterial Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Sanjana Mukundan
- Institute of Bioinformatics and Applied Biotechnology (IBAB) , Bangalore, India
| | - Subhas S Karki
- KLE Academy of Higher Education & Research, KLE College of Pharmacy, Bangalore, KN, India
| | - Bibha Choudhary
- Institute of Bioinformatics and Applied Biotechnology (IBAB) , Bangalore, India
| | - Chhitar M Gupta
- Institute of Bioinformatics and Applied Biotechnology (IBAB) , Bangalore, India
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30
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Sanchez-Guzman D, Le Guen P, Villeret B, Sola N, Le Borgne R, Guyard A, Kemmel A, Crestani B, Sallenave JM, Garcia-Verdugo I. Silver nanoparticle-adjuvanted vaccine protects against lethal influenza infection through inducing BALT and IgA-mediated mucosal immunity. Biomaterials 2019; 217:119308. [PMID: 31279103 DOI: 10.1016/j.biomaterials.2019.119308] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/21/2019] [Accepted: 06/25/2019] [Indexed: 12/19/2022]
Abstract
Most of current influenza virus vaccines fail to develop a strong immunity at lung mucosae (site of viral entry) due to sub-optimal vaccination protocols (e.g. inactivated virus administered by parenteral injections). Mucosal immunity could be improved by using locally-delivered vaccines containing appropriate adjuvants. Here we show, in a mouse model, that inclusion of silver nanoparticles (AgNPs) in virus-inactivated flu vaccine resulted in reduction of viral loads and prevention of excessive lung inflammation following influenza infection. Concomitantly, AgNPs enhanced specific IgA secreting plasma cells and antibodies titers, a hallmark of successful mucosal immunity. Moreover, vaccination in the presence of AgNPs but not with gold nanoparticles, protected mice from lethal flu. Compared with other commercial adjuvants (squalene/oil-based emulsion) or silver salts, AgNPs stimulated stronger antigen specific IgA production with lower toxicity by promoting bronchus-associated lymphoid tissue (BALT) neogenesis, and acted as a bona fide mucosal adjuvant.
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Affiliation(s)
- Daniel Sanchez-Guzman
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France
| | - Pierre Le Guen
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France; Department of Pneumology A, AP-HP, Groupe Hospitalier Bichat-Claude Bernard, Paris, 75018, Paris, France
| | - Berengere Villeret
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France
| | - Nuria Sola
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France
| | - Remi Le Borgne
- ImagoSeine, Electron Microscopy Facility, Institut Jacques Monod, CNRS UMR 7592, Université Paris Diderot, Sorbonne Paris Cité, 75205, Cedex 13, Paris, France
| | - Alice Guyard
- Department of Pathology, AP-HP, Groupe Hospitalier Bichat-Claude Bernard, Paris, 75018, Paris, France
| | - Alix Kemmel
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France
| | - Bruno Crestani
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France; Department of Pneumology A, AP-HP, Groupe Hospitalier Bichat-Claude Bernard, Paris, 75018, Paris, France
| | - Jean-Michel Sallenave
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France
| | - Ignacio Garcia-Verdugo
- INSERM, UMR U1152, Laboratoire d'Excellence Inflamex, Département Hospitalo-Universitaire FIRE (Fibrosis, Inflammation and Remodeling), Université Paris Diderot, Sorbonne Paris Cité, 75018, Paris, France.
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Nicholas TP, Kavanagh TJ, Faustman EM, Altemeier WA. The Effects of Gene × Environment Interactions on Silver Nanoparticle Toxicity in the Respiratory System. Chem Res Toxicol 2019; 32:952-968. [PMID: 31124663 DOI: 10.1021/acs.chemrestox.8b00234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Silver nanoparticles (AgNP) are used in multiple applications but primarily in the manufacturing of antimicrobial products. AgNP toxicity in the respiratory system is well characterized, but few in vitro or in vivo studies have evaluated the effects of interactions between host genetic and acquired factors or gene × environment interactions (G × E) on AgNP toxicity in the respiratory system. The primary goal of this article is to review host genetic and acquired factors identified across in vitro and in vivo studies and prioritize those necessary for defining exposure limits to protect all populations. The impact of these exposures and the work being done to address the current limited protections are also discussed. Future research on G × E effects on AgNP toxicity is warranted and will assist with informing regulatory or recommended exposure limits that enforce special protections for all populations to AgNP exposures in occupational settings.
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Affiliation(s)
- Tyler P Nicholas
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98109 , United States
| | - Terrance J Kavanagh
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98109 , United States
| | - Elaine M Faustman
- Department of Environmental and Occupational Health Sciences , University of Washington , Seattle , Washington 98109 , United States
| | - William A Altemeier
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine , University of Washington , Seattle , Washington 98109 , United States
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32
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Liao C, Li Y, Tjong SC. Bactericidal and Cytotoxic Properties of Silver Nanoparticles. Int J Mol Sci 2019; 20:E449. [PMID: 30669621 PMCID: PMC6359645 DOI: 10.3390/ijms20020449] [Citation(s) in RCA: 413] [Impact Index Per Article: 82.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 12/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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Rogers KR, Navratilova J, Stefaniak A, Bowers L, Knepp AK, Al-Abed SR, Potter P, Gitipour A, Radwan I, Nelson C, Bradham KD. Characterization of engineered nanoparticles in commercially available spray disinfectant products advertised to contain colloidal silver. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 619-620:1375-1384. [PMID: 29723948 PMCID: PMC5939576 DOI: 10.1016/j.scitotenv.2017.11.195] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 11/16/2017] [Accepted: 11/17/2017] [Indexed: 05/25/2023]
Abstract
Given the potential for human exposure to silver nanoparticles from spray disinfectants and dietary supplements, we characterized the silver-containing nanoparticles in 22 commercial products that advertised the use of silver or colloidal silver as the active ingredient. Characterization parameters included: total silver, fractionated silver (particulate and dissolved), primary particle size distribution, hydrodynamic diameter, particle number, and plasmon resonance absorbance. A high degree of variability between claimed and measured values for total silver was observed. Only 7 of the products showed total silver concentrations within 20% of their nominally reported values. In addition, significant variations in the relative percentages of particulate vs. soluble silver were also measured in many of these products reporting to be colloidal. Primary silver particle size distributions by transmission electron microscopy (TEM) showed two populations of particles - smaller particles (<5nm) and larger particles between 20 and 40nm. Hydrodynamic diameter measurements using nanoparticle tracking analysis (NTA) correlated well with TEM analysis for the larger particles. Z-average (Z-Avg) values measured using dynamic light scattering (DLS); however, were typically larger than both NTA or TEM particle diameters. Plasmon resonance absorbance signatures (peak absorbance at around 400nm indicative of metallic silver nanoparticles) were only noted in 4 of the 9 yellow-brown colored suspensions. Although the total silver concentrations were variable among products, ranging from 0.54mg/L to 960mg/L, silver containing nanoparticles were identified in all of the product suspensions by TEM.
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Affiliation(s)
- Kim R Rogers
- U.S. Environmental Protection Agency, RTP, NC, United States.
| | | | - Aleksandr Stefaniak
- National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Lauren Bowers
- National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Alycia K Knepp
- National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | | | - Phillip Potter
- U.S. Environmental Protection Agency, Cincinnati, OH, United States
| | - Alireza Gitipour
- U.S. Environmental Protection Agency, Cincinnati, OH, United States
| | - Islam Radwan
- U.S. Environmental Protection Agency, Cincinnati, OH, United States
| | - Clay Nelson
- U.S. Environmental Protection Agency, RTP, NC, United States
| | - Karen D Bradham
- U.S. Environmental Protection Agency, RTP, NC, United States
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Silver Nanoparticles in the Lung: Toxic Effects and Focal Accumulation of Silver in Remote Organs. NANOMATERIALS 2017; 7:nano7120441. [PMID: 29231883 PMCID: PMC5746931 DOI: 10.3390/nano7120441] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 12/01/2017] [Accepted: 12/05/2017] [Indexed: 11/17/2022]
Abstract
The distribution of silver (Ag) into remote organs secondary to the application of Ag nanoparticles (Ag-NP) to the lung is still incompletely understood and was investigated in the rat with imaging methods. Dose-finding experiments were carried out with 50 nm- or 200 nm-sized polyvinyl pyrrolidine (PVP)-coated Ag-NP using alveolar macrophages in vitro and female rats, which received Ag-NP via intratracheal instillation. In the main study, we administered 37.5–300 µg per rat lung of the more toxic Ag50-PVP and assessed the broncho-alveolar lavage fluid (BALF) for inflammatory cells, total protein and fibronectin after three and 21 days. In parallel, lung tissue was analysed for DNA double-strand breaks and altered cell proliferation. While 75–150 µg Ag50-PVP per rat lung caused a reversible inflammation, 300 µg led to DNA damage, accelerated cell proliferation and progressively increasing numbers of neutrophilic granulocytes. Ag accumulation was significant in homogenates of liver and other peripheral organs upon lung dose of ≥75 µg. Quantitative laser-ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS) combined with enhanced dark field microscopy and autometallography revealed focal accumulations of Ag and/or Ag-NP in sections of peripheral organs: mediastinal lymph nodes contained Ag-NP especially in peripheral macrophages and Ag in argyrophilic fibres. In the kidney, Ag had accumulated within proximal tubuli, while renal filter structures contained no Ag. Discrete localizations were also observed in immune cells of liver and spleen. Overall, the study shows that concentrations of Ag-NP, which elicit a transient inflammation in the rat lung, lead to focal accumulations of Ag in peripheral organs, and this might pose a risk to particular cell populations in remote sites.
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