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Gao Y, Zhang T. The Application of Nanomaterials in Cell Autophagy. Curr Stem Cell Res Ther 2020; 16:23-35. [PMID: 32357821 DOI: 10.2174/1574888x15666200502000807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 02/08/2023]
Abstract
Autophagy is defined as separation and degradation of cytoplasmic components through autophagosomes, which plays an essential part in physiological and pathological events. Hence it is also essential for cellular homeostasis. Autophagy disorder may bring about the failure of stem cells to maintain the fundamental transformation and metabolism of cell components. However, for cancer cells, the disorder of autophagy is a feasible antitumor idea. Nanoparticles, referring to particles of the size range 1-100 nanometers, are appearing as a category of autophagy regulators. These nanoparticles may revolutionize and broaden the therapeutic strategies of many diseases, including neurodegenerative diseases, tumors, muscle disease, and so on. Researches of autophagy-induced nanomaterials mainly focus on silver particles, gold particles, silicon particles, and rare earth oxides. But in recent years, more and more materials have been found to regulate autophagy, such as nano-nucleic acid materials, nanofiber scaffolds, quantum dots, and so on. The review highlights that various kinds of nanoparticles have the power to regulate autophagy intensity in stem cells of interest and further control biological behaviors, which may become a reliable treatment choice for disease therapy.
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Affiliation(s)
- Yang Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tao Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Liu S, Xia T. Continued Efforts on Nanomaterial-Environmental Health and Safety Is Critical to Maintain Sustainable Growth of Nanoindustry. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000603. [PMID: 32338451 PMCID: PMC7694868 DOI: 10.1002/smll.202000603] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 05/27/2023]
Abstract
Nanotechnology is enjoying an impressive growth and the global nanotechnology industry is expected to exceed US$ 125 billion by 2024. Based on these successes, there are notions that enough is known and efforts on engineered nanomaterial environmental health and safety (nano-EHS) research should be put on the back burner. However, there are recent events showing that it is not the case. The US Food and Drug Administration found ferumoxytol (carbohydrate-coated superparamagnetic iron oxide nanoparticle) for anemia treatment could induce lethal anaphylactic reactions. The European Union will categorize TiO2 as a category 2 carcinogen due to its inhalation hazard and France banned use of TiO2 (E171) in food from January 1, 2020 because of its carcinogenic potential. Although nanoindustry is seemingly in a healthy state, growth could be hindered for the lack of certainty and more nano-EHS research is needed for the sustainable growth of nanoindustry. Herein, the current knowledge gaps and the way forward are elaborated.
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Affiliation(s)
- Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, CA 90095, United States
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Wang X, Chang CH, Jiang J, Liu X, Li J, Liu Q, Liao YP, Li L, Nel AE, Xia T. Mechanistic Differences in Cell Death Responses to Metal-Based Engineered Nanomaterials in Kupffer Cells and Hepatocytes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000528. [PMID: 32337854 PMCID: PMC7263057 DOI: 10.1002/smll.202000528] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 05/18/2023]
Abstract
The mononuclear phagocyte system in the liver is a frequent target for nanoparticles (NPs). A toxicological profiling of metal-based NPs is performed in Kupffer cell (KC) and hepatocyte cell lines. Sixteen NPs are provided by the Nanomaterial Health Implications Research Consortium of the National Institute of Environmental Health Sciences to study the toxicological effects in KUP5 (KC) and Hepa 1-6 cells. Five NPs (Ag, CuO, ZnO, SiO2 , and V2 O5 ) exhibit cytotoxicity in both cell types, while SiO2 and V2 O5 induce IL-1β production in KC. Ag, CuO, and ZnO induced caspase 3 generated apoptosis in both cell types is accompanied by ion shedding and generation of mitochondrial reactive oxygen species (ROS) in both cell types. However, the cell death response to SiO2 in KC differs by inducing pyroptosis as a result of potassium efflux, caspase 1 activation, NLRP3 inflammasome assembly, IL-1β release, and cleavage of gasdermin-D. This releases pore-performing peptide fragments responsible for pyroptotic cell swelling. Interestingly, although V2 O5 induces IL-1β release and delays caspase 1 activation by vanadium ion interference in membrane Na+ /K+ adenosine triphosphate (ATP)ase activity, the major cell death mechanism in KC (and Hepa 1-6) is caspase 3 mediated apoptosis. These findings improve the understanding of the mechanisms of metal-based engineered nanomaterial (ENM) toxicity in liver cells toward comprehensive safety evaluation.
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Affiliation(s)
- Xiang Wang
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
- California NanoSystems Institute; University of California, Los Angeles, CA 90095, United States, United States
| | - Chong Hyun Chang
- California NanoSystems Institute; University of California, Los Angeles, CA 90095, United States, United States
| | - Jinhong Jiang
- California NanoSystems Institute; University of California, Los Angeles, CA 90095, United States, United States
| | - Xiangsheng Liu
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
| | - Jiulong Li
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
| | - Qi Liu
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
| | - Yu-Pei Liao
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
| | - Linjiang Li
- California NanoSystems Institute; University of California, Los Angeles, CA 90095, United States, United States
| | - André E. Nel
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
- California NanoSystems Institute; University of California, Los Angeles, CA 90095, United States, United States
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, CA 90095, United States, United States
- California NanoSystems Institute; University of California, Los Angeles, CA 90095, United States, United States
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Al Mamun A, Wu Y, Jia C, Munir F, Sathy KJ, Sarker T, Monalisa I, Zhou K, Xiao J. Role of pyroptosis in liver diseases. Int Immunopharmacol 2020; 84:106489. [PMID: 32304992 DOI: 10.1016/j.intimp.2020.106489] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/03/2020] [Accepted: 04/05/2020] [Indexed: 12/17/2022]
Abstract
Pyroptosis is known as a novel form of pro-inflammatory cell death program, which is exceptional from other types of cell death programs. Particularly, pyroptosis is characterized by Gasdermin family-mediated pore formation and subsequently cellular lysis, also release of several pro-inflammatory intracellular cytokines. In terms of mechanism, there are two signaling pathways involved in pyroptosis, including caspase-1, and caspase-4/5/11 mediated pathways. However, pyroptosis plays important roles in immune defense mechanisms. Recent studies have demonstrated that pyroptosis plays significant roles in the development of liver diseases. In our review, we have focused on the role of pyroptosis based on the molecular and pathophysiological mechanisms in the development of liver diseases. We have also highlighted targeting of pyroptosis for the therapeutic implications in liver diseases in the near future.
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou 325035, Zhejiang Province, China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Kasfia Jahan Sathy
- Department of Pharmacy, North South University, Bashundhara, Dhaka 1229, Bangladesh
| | - Tamanna Sarker
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Ilma Monalisa
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.
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Zhu M, Du L, Zhao R, Wang HY, Zhao Y, Nie G, Wang RF. Cell-Penetrating Nanoparticles Activate the Inflammasome to Enhance Antibody Production by Targeting Microtubule-Associated Protein 1-Light Chain 3 for Degradation. ACS NANO 2020; 14:3703-3717. [PMID: 32057231 PMCID: PMC7457719 DOI: 10.1021/acsnano.0c00962] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Engineered nanoparticles could trigger inflammatory responses and potentiate a desired innate immune response for efficient immunotherapy. Here we report size-dependent activation of innate immune signaling pathways by gold (Au) nanoparticles. The ultrasmall-size (<10 nm) Au nanoparticles preferentially activate the NLRP3 inflammasome for Caspase-1 maturation and interleukin-1β production, while the larger-size Au nanoparticles (>10 nm) trigger the NF-κB signaling pathway. Ultrasmall (4.5 nm) Au nanoparticles (Au4.5) activate the NLRP3 inflammasome through directly penetrating into cell cytoplasm to promote robust ROS production and target autophagy protein-LC3 (microtubule-associated protein 1-light chain 3) for proteasomal degradation in an endocytic/phagocytic-independent manner. LC3-dependent autophagy is required for inhibiting NLRP3 inflammasome activation and plays a critical role in the negative control of inflammasome activation. Au4.5 nanoparticles promote the degradation of LC3, thus relieving the LC3-mediated inhibition of the NLRP3 inflammasome. Finally, we show that Au4.5 nanoparticles could function as vaccine adjuvants to markedly enhance ovalbumin (OVA)-specific antibody production in an NLRP3-dependent pattern. Our findings have provided molecular insights into size-dependent innate immune signaling activation by cell-penetrating nanoparticles and identified LC3 as a potential regulatory target for efficient immunotherapy.
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Affiliation(s)
- Motao Zhu
- Department of Medicine, and Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- 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
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Libo Du
- State Key Laboratory for Structural Chemistry of Unstable Species, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ruifang Zhao
- 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
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Helen Y Wang
- Department of Medicine, and Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Yuliang Zhao
- 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
| | - Guangjun Nie
- 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
| | - Rong-Fu Wang
- Department of Medicine, and Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
- Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Department of Pediatrics, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027, United States
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Li H, Chen J, Fan H, Cai R, Gao X, Meng D, Ji Y, Chen C, Wang L, Wu X. Initiation of protective autophagy in hepatocytes by gold nanorod core/silver shell nanostructures. NANOSCALE 2020; 12:6429-6437. [PMID: 32141450 DOI: 10.1039/c9nr08621h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The high reactivity of silver nanoparticles leads to their broad applications in the anti-bacterial field; however, the safety of silver nanoparticles has attracted increasing public attention. After exposure to silver nanoparticles in vivo, the liver serves as their potential deposition site; however the potential biological effects of such nanoparticles on hepatocytes at low dosages are not well understood. Here, we study the interaction between gold nanorod core/silver shell nanostructures (Au@Ag NRs) and human hepatocytes, HepG2 cells, and determine that Au@Ag NRs at sub-lethal doses can induce autophagy. After uptake, Au@Ag NRs mainly localize in the lysosomes where they release silver ions and promote the production of reactive oxygen species (ROS). The ROS then suppress the AKT-mTOR signaling pathway and activate autophagy. In addition, oxidative stress results in lysosomal impairment, causing decreased ability for lysosomal digestion. Moreover, oxidative stress also affects the structure and function of mitochondria, leading to the initiation of protective autophagy to eliminate the damaged mitochondrion. Our study shows that at sub-lethal dosages, silver nanomaterials may alter the physiological functions of hepatic cells by activating protective autophagy and cause potential health risks, indicating that cautious consideration of the safety of nanomaterials for certain applications is necessary.
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Affiliation(s)
- Haiyun Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.
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Nanoparticle-Mediated Therapeutic Application for Modulation of Lysosomal Ion Channels and Functions. Pharmaceutics 2020; 12:pharmaceutics12030217. [PMID: 32131531 PMCID: PMC7150957 DOI: 10.3390/pharmaceutics12030217] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 02/07/2023] Open
Abstract
Applications of nanoparticles in various fields have been addressed. Nanomaterials serve as carriers for transporting conventional drugs or proteins through lysosomes to various cellular targets. The basic function of lysosomes is to trigger degradation of proteins and lipids. Understanding of lysosomal functions is essential for enhancing the efficacy of nanoparticles-mediated therapy and reducing the malfunctions of cellular metabolism. The lysosomal function is modulated by the movement of ions through various ion channels. Thus, in this review, we have focused on the recruited ion channels for lysosomal function, to understand the lysosomal modulation through the nanoparticles and its applications. In the future, lysosomal channels-based targets will expand the therapeutic application of nanoparticles-associated drugs.
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58
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Guo L, He N, Zhao Y, Liu T, Deng Y. Autophagy Modulated by Inorganic Nanomaterials. Theranostics 2020; 10:3206-3222. [PMID: 32194863 PMCID: PMC7053187 DOI: 10.7150/thno.40414] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 01/06/2020] [Indexed: 02/07/2023] Open
Abstract
With the rapid development of nanotechnology, inorganic nanomaterials (NMs) have been widely applied in modern society. As human exposure to inorganic NMs is inevitable, comprehensive assessment of the safety of inorganic NMs is required. It is well known that autophagy plays dual roles in cell survival and cell death. Moreover, inorganic NMs have been proven to induce autophagy perturbation in cells. Therefore, an in-depth understanding of inorganic NMs-modulated autophagy is required for the safety assessment of inorganic NMs. This review presents an overview of a set of inorganic NMs, consisting of iron oxide NMs, silver NMs, gold NMs, carbon-based NMs, silica NMs, quantum dots, rare earth oxide NMs, zinc oxide NMs, alumina NMs, and titanium dioxide NMs, as well as how each modulates autophagy. This review emphasizes the potential mechanisms underlying NMs-induced autophagy perturbation, as well as the role of autophagy perturbation in cell fate determination. Furthermore, we also briefly review the potential roles of inorganic NMs-modulated autophagy in diagnosis and treatment of disease.
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59
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Wu Q, Yao L, Zhao X, Zeng L, Li P, Yang X, Zhang L, Cai Z, Shi J, Qu G, Jiang G. Cellular Uptake of Few-Layered Black Phosphorus and the Toxicity to an Aquatic Unicellular Organism. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:1583-1592. [PMID: 31825640 DOI: 10.1021/acs.est.9b05424] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
With the potential continuous application of mono- or few-layered black phosphorus (BP) in electronic, photonic, therapeutic, and environmental fields, the possible side effects of BP on aquatic organisms after release into natural water are of great concern. We investigated the potential toxicity of BP on the unicellular organism, Tetrahymena thermophila. After the exposure for 8 h at 10 μg/mL, the reproduction of T. thermophila significantly decreased by 46.3%. Severe cell membrane and cilium damage were observed by scanning electron microscopy (SEM) upon treatment with BP. Based on bright-field microscopy and three-dimensional Raman imaging, we investigated the cellular uptake and translocation of BP within T. thermophila. It was observed that the engulfment of BP by T. thermophila was oral apparatus dependent, through which intracellular BP was then transported to the posterior end of T. thermophila by food vacuole packaging. Our study also revealed that BP induced the increase of intracellular reactive oxidant species and formed oxidative stress-dependent toxicity to T. thermophila. Our findings paved a way for better understanding the BP toxicityon aquatic organisms and its potential ecological risks.
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Affiliation(s)
- Qi Wu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Linlin Yao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Xingchen Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry , Hong Kong Baptist University , Hong Kong , China
| | - Li Zeng
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Ping Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Xiaoxi Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Liu Zhang
- Institute of Environment and Health , Jianghan University , Wuhan , 430056 , China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry , Hong Kong Baptist University , Hong Kong , China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- Environment and Health, Hangzhou Institute for Advanced Study , University of Chinese Academy of Sciences , Hangzhou , 310000 , China
- Institute of Environment and Health , Jianghan University , Wuhan , 430056 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- Environment and Health, Hangzhou Institute for Advanced Study , University of Chinese Academy of Sciences , Hangzhou , 310000 , China
- Institute of Environment and Health , Jianghan University , Wuhan , 430056 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology , Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing , 100085 , China
- Environment and Health, Hangzhou Institute for Advanced Study , University of Chinese Academy of Sciences , Hangzhou , 310000 , China
- Institute of Environment and Health , Jianghan University , Wuhan , 430056 , China
- University of Chinese Academy of Sciences , Beijing , 100049 , China
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Liu W, Zhang G, Wu J, Zhang Y, Liu J, Luo H, Shao L. Insights into the angiogenic effects of nanomaterials: mechanisms involved and potential applications. J Nanobiotechnology 2020; 18:9. [PMID: 31918719 PMCID: PMC6950937 DOI: 10.1186/s12951-019-0570-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 12/31/2019] [Indexed: 12/18/2022] Open
Abstract
The vascular system, which transports oxygen and nutrients, plays an important role in wound healing, cardiovascular disease treatment and bone tissue engineering. Angiogenesis is a complex and delicate regulatory process. Vascular cells, the extracellular matrix (ECM) and angiogenic factors are indispensable in the promotion of lumen formation and vascular maturation to support blood flow. However, the addition of growth factors or proteins involved in proangiogenic effects is not effective for regulating angiogenesis in different microenvironments. The construction of biomaterial scaffolds to achieve optimal growth conditions and earlier vascularization is undoubtedly one of the most important considerations and major challenges among engineering strategies. Nanomaterials have attracted much attention in biomedical applications due to their structure and unique photoelectric and catalytic properties. Nanomaterials not only serve as carriers that effectively deliver factors such as angiogenesis-related proteins and mRNA but also simulate the nano-topological structure of the primary ECM of blood vessels and stimulate the gene expression of angiogenic effects facilitating angiogenesis. Therefore, the introduction of nanomaterials to promote angiogenesis is a great helpful to the success of tissue regeneration and some ischaemic diseases. This review focuses on the angiogenic effects of nanoscaffolds in different types of tissue regeneration and discusses the influencing factors as well as possible related mechanisms of nanomaterials in endothelial neovascularization. It contributes novel insights into the design and development of novel nanomaterials for vascularization and therapeutic applications.
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Affiliation(s)
- Wenjing Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Guilan Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Junrong Wu
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Yanli Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Jia Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Haiyun Luo
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Longquan Shao
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China.
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou, 510515, China.
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Zheng Z, Zhou Y, Ye L, Lu Q, Zhang K, Zhang J, Xie L, Wu Y, Xu K, Zhang H, Xiao J. Histone deacetylase 6 inhibition restores autophagic flux to promote functional recovery after spinal cord injury. Exp Neurol 2019; 324:113138. [PMID: 31794745 DOI: 10.1016/j.expneurol.2019.113138] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/29/2019] [Accepted: 11/29/2019] [Indexed: 12/25/2022]
Abstract
After spinal cord injury (SCI), the inhibitory molecules derived from scars at the lesion sites and the limited regenerative capacity of neuronal axons pose difficulties for the recovery after SCI. Remodeling of cytoskeleton structures including microtubule assembly and tubulin post-translational modification are widely accepted to play a crucial role in initiation of growth cone and regrowth of injured axon. Although increasing studies have focused on the association between tubulin acetylation and autophagy due to the role of tubulin acetylation in organelles and substances transport, there are no studies exploring the effect of tubulin acetylation on autophagy after spinal cord injury (SCI). Here, we found that histone deacetylase 6 (HDAC6) was significantly up-regulated after SCI, while inhibition of HDAC6 by Tubastatin A induced functional recovery after SCI. In view of enzyme-dependent and -independent mechanisms of HDAC6 to adjust diverse cellular processes, such as autophagy, the ubiquitin proteasome system and post-translational modification of tubulin, we mainly focused on the significance of HDAC6 in axonal regeneration and autophagy after SCI. Western blotting, Co-immunoprecipitation and immunofluorescence staining were conducted to showed that Tubastatin A treatment in nocodazole-treated cells and mice suffering from SCI prompted acetylation and stabilization of microtubules and thus restored transport function, which may contribute to restored autophagic flux and increased axonal length. Whereas inhibition of degradation of autolysosomes by bafilomycin A1 (Baf-A1) reversed functional recovery caused by Tubastatin A, revealing the association between tubulin acetylation and autophagy, which supports HDAC6 inhibition as a potential target for SCI treatment.
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Affiliation(s)
- Zhilong Zheng
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yajiao Zhou
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Luxia Ye
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qi Lu
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Kairui Zhang
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jing Zhang
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lin Xie
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yanqing Wu
- The Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Ke Xu
- The Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Hongyu Zhang
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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Osman NM, Sexton DW, Saleem IY. Toxicological assessment of nanoparticle interactions with the pulmonary system. Nanotoxicology 2019; 14:21-58. [PMID: 31502904 DOI: 10.1080/17435390.2019.1661043] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nanoparticle(NP)-based materials have breakthrough applications in many fields of life, such as in engineering, communications and textiles industries; food and bioenvironmental applications; medicines and cosmetics, etc. Biomedical applications of NPs are very active areas of research with successful translation to pharmaceutical and clinical uses overcoming both pharmaceutical and clinical challenges. Although the attractiveness and enhanced applications of these NPs stem from their exceptional properties at the nanoscale size, i.e. 1-1000 nm, they exhibit completely different physicochemical profiles and, subsequently, toxicological profiles from their parent bulk materials. Hence, the clinical evaluation and toxicological assessment of NPs interactions within biological systems are continuously evolving to ensure their safety at the nanoscale. The pulmonary system is one of the primary routes of exposure to airborne NPs either intentionally, via aerosolized nanomedicines targeting pulmonary pathologies such as cancer or asthma, or unintentionally, via natural NPs and anthropogenic (man-made) NPs. This review presents the state-of-the-art, contemporary challenges, and knowledge gaps in the toxicological assessment of NPs interactions with the pulmonary system. It highlights the main mechanisms of NP toxicity, factors influencing their toxicity, the different toxicological assessment methods and their drawbacks, and the recent NP regulatory guidelines based on literature collected from the research pool of NPs interactions with lung cell lines, in vivo inhalation studies, and clinical trials.
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Affiliation(s)
- Nashwa M Osman
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Darren W Sexton
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Imran Y Saleem
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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63
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Carbon quantum dots from roasted Atlantic salmon (Salmo salar L.): Formation, biodistribution and cytotoxicity. Food Chem 2019; 293:387-395. [DOI: 10.1016/j.foodchem.2019.05.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/31/2022]
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64
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Liu N, Tang M. Toxic effects and involved molecular pathways of nanoparticles on cells and subcellular organelles. J Appl Toxicol 2019; 40:16-36. [PMID: 31294482 DOI: 10.1002/jat.3817] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/11/2019] [Accepted: 04/11/2019] [Indexed: 02/06/2023]
Abstract
Owing to the increasing application of engineered nanoparticles (NPs), besides the workplace, human beings are also exposed to NPs from nanoproducts through the skin, respiratory tract, digestive tract and vein injection. This review states pathways of cellular uptake, subcellular distribution and excretion of NPs. The uptake pathways commonly include phagocytosis, micropinocytosis, clathrin- and caveolae-mediated endocytosis, scavenger receptor-related pathway, clathrin- or caveolae-independent pathway, and direct penetration or insertion. Then the ability of NPs to decrease cell viability and metabolic activity, change cell morphology, and destroy cell membrane, cytoskeleton and cell function was presented. In addition, the lowest dose decreasing cell metabolic viability compared with the control or IC50 of silver, titanium dioxide, zinc oxide, carbon black, carbon nanotubes, silica, silicon NPs and cadmium telluride quantum dots to some cell lines was gathered. Next, this review attempts to increase our understanding of NP-caused adverse effects on organelles, which have implications in mitochondrial dysfunction, endoplasmic reticulum stress and lysosomal rupture. In particular, the disturbance of mitochondrial biogenesis and mitochondrial dynamic fusion-fission, mitophagy and cytochrome c-dependent apoptosis are involved. In addition, prolonged endoplasmic reticulum stress will result in apoptosis. Rupture of the lysosomal membrane was associated with inflammation, and both induction of autophagy and blockade of autophagic flow can result in cytotoxicity. Finally, the network mechanism of the combined action of multiple organelle dysfunction, apoptosis, autophagy and oxidative stress was discussed.
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Affiliation(s)
- Na Liu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing, China
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65
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Liu J, Kang Y, Yin S, Chen A, Wu J, Liang H, Shao L. Key Role of Microtubule and Its Acetylation in a Zinc Oxide Nanoparticle-Mediated Lysosome-Autophagy System. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901073. [PMID: 31062916 DOI: 10.1002/smll.201901073] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/08/2019] [Indexed: 05/23/2023]
Abstract
Autophagy is a biological process that has attracted considerable attention as a target for novel therapeutics. Recently, nanomaterials (NMs) have been reported to modulate autophagy, which makes them potential agents for the treatment of autophagy-related diseases. In this study, zinc oxide nanoparticles (ZNPs) are utilized to evaluate NM-induced autophagy and debate the mechanisms involved. It is found that ZNPs undergo pH-dependent ion shedding and that intracellular zinc ions (Zn2+ ) play a crucial role in autophagy. Autophagy is activated with ZNPs treatment, which is inhibited after Zn2+ sequestration via ethylenediamine tetra-acetic acid. Lysosome-based autophagic degradation is halted after ZNPs treatment for more than 3 h and is accompanied by blockage of lysophagy, which renews impaired lysosomes. Furthermore, the microtubule (MT) system participates in ZNP-induced lysosome-autophagy system changes, especially in the fusion between autophagosomes and lysosomes. MT acetylation is helpful for protecting from ZNP-induced MT disruption, and it promotes the autophagic degradation process. In conclusion, this study provides valuable information on NM-induced lysosome-autophagy system changes, particularly with respect to the role of lysophagy and the MT system, which point to some attractive targets for the design of engineered nanoparticles.
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Affiliation(s)
- Jia Liu
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou, 510515, China
| | - Yiyuan Kang
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Suhan Yin
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Aijie Chen
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Junrong Wu
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Huimin Liang
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Longquan Shao
- Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou, 510515, China
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66
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Circular RNA 0039411 Is Involved in Neodymium Oxide-induced Inflammation and Antiproliferation in a Human Bronchial Epithelial Cell Line via Sponging miR-93-5p. Toxicol Sci 2019; 170:69-81. [DOI: 10.1093/toxsci/kfz074] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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67
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Brzicova T, Sikorova J, Milcova A, Vrbova K, Klema J, Pikal P, Lubovska Z, Philimonenko V, Franco F, Topinka J, Rossner P. Nano-TiO2 stability in medium and size as important factors of toxicity in macrophage-like cells. Toxicol In Vitro 2019; 54:178-188. [DOI: 10.1016/j.tiv.2018.09.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 08/30/2018] [Accepted: 09/26/2018] [Indexed: 10/28/2022]
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Wu C, Wu Y, Jin Y, Zhu P, Shi W, Li J, Wu Q, Zhang Q, Han Y, Zhao X. Endosomal/lysosomal location of organically modified silica nanoparticles following caveolae-mediated endocytosis. RSC Adv 2019; 9:13855-13862. [PMID: 35519602 PMCID: PMC9063904 DOI: 10.1039/c9ra00404a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 04/16/2019] [Indexed: 11/21/2022] Open
Abstract
Organically modified silica (ORMOSIL) nanoparticles (NPs) are widely used in biomedicine.
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Affiliation(s)
- Changyue Wu
- School of Medicine
- Nantong University
- Nantong 226019
- China
| | - Yifan Wu
- School of Public Health
- Nantong University
- Nantong 226019
- China
| | - Yang Jin
- School of Public Health
- Nantong University
- Nantong 226019
- China
| | - Piaoyu Zhu
- School of Public Health
- Nantong University
- Nantong 226019
- China
| | - Weiwei Shi
- Nantong Hospital of Traditional Chinese Medicine
- Nantong 226001
- China
| | - Jinlong Li
- School of Pharmacy
- Nantong University
- Nantong 226019
- China
| | - Qiyun Wu
- School of Public Health
- Nantong University
- Nantong 226019
- China
| | - Qinglin Zhang
- Departments of Gastroenterology
- Wuxi People's Hospital Affiliated to Nanjing Medical University
- Wuxi 214023
- China
| | - Yu Han
- School of Public Health
- Nantong University
- Nantong 226019
- China
| | - Xinyuan Zhao
- School of Public Health
- Nantong University
- Nantong 226019
- China
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69
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Chen Y, Wang M, Zhang T, Du E, Liu Y, Qi S, Xu Y, Zhang Z. Autophagic effects and mechanisms of silver nanoparticles in renal cells under low dose exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 166:71-77. [PMID: 30248563 DOI: 10.1016/j.ecoenv.2018.09.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 09/12/2018] [Accepted: 09/15/2018] [Indexed: 06/08/2023]
Abstract
With the advancement of nanotechnology and unique properties, silver nanoparticles (AgNPs) have been generally used in our work and life. However, the concerns on nanosafety have not been thoroughly understood. Although mounting studies have documented AgNPs-mediated autophagy under toxic dose, very few studies have been made to reveal the mechanisms of AgNPs-induced autophagy at non-toxic concentrations. Here, we investigated AgNPs-mediated biological effects on autophagy in renal cells under sublethal exposure. Sublethal AgNPs resulted in increase of LC3II level and accumulation of autophagy related genes in HEK293T and A498 cells, which demonstrated AgNPs could activate autophagy at lower concentrations. Mechanistic investigation manifested that AMPK-mTOR signaling was enrolled in AgNPs-induced autophagy process rather than PI3K/AKT/mTOR signaling. In addition, P62 was elevated in AgNPs-treated cells in an mTOR-independent manner. We further uncovered that sublethal AgNPs exposure impaired the integrity and protease activities of lysosome. Together, our results revealed the mechanism by which AgNPs induced autophagy in renal cells under sublethal concentration.
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Affiliation(s)
- Yue Chen
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Meng Wang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China; Department of Gynecology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Tianke Zhang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - E Du
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Yan Liu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Shiyong Qi
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Yong Xu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Zhihong Zhang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China.
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70
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Effects of Ultrasonic Dispersion Energy on the Preparation of Amorphous SiO₂ Nanomaterials for In Vitro Toxicity Testing. NANOMATERIALS 2018; 9:nano9010011. [PMID: 30583541 PMCID: PMC6359325 DOI: 10.3390/nano9010011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/10/2018] [Accepted: 12/18/2018] [Indexed: 02/07/2023]
Abstract
Synthetic amorphous silica (SAS) constitute a large group of industrial nanomaterials (NM). Based on their different production processes, SAS can be distinguished as precipitated, fumed, gel and colloidal. The biological activity of SAS, e.g., cytotoxicity or inflammatory potential in the lungs is low but has been shown to depend on the particle size, at least for colloidal silica. Therefore, the preparation of suspensions from highly aggregated or agglomerated SAS powder materials is critical. Here we analyzed the influence of ultrasonic dispersion energy on the biologic activity of SAS using NR8383 alveolar macrophage (AM) assay. Fully characterized SAS (7 precipitated, 3 fumed, 3 gel, and 1 colloidal) were dispersed in H2O by stirring and filtering through a 5 µm filter. Aqueous suspensions were sonicated with low or high ultrasonic dispersion (USD) energy of 18 or 270 kJ/mL, respectively. A dose range of 11.25–90 µg/mL was administered to the AM under protein-free conditions to detect particle-cell interactions without the attenuating effect of proteins that typically occur in vivo. The release of lactate dehydrogenase (LDH), glucuronidase (GLU), and tumor necrosis factor α (TNF) were measured after 16 h. Hydrogen peroxide (H2O2) production was assayed after 90 min. The overall pattern of the in vitro response to SAS (12/14) was clearly dose-dependent, except for two SAS which showed very low bioactivity. High USD energy gradually decreased the particle size of precipitated, fumed, and gel SAS whereas the low adverse effect concentrations (LOECs) remained unchanged. Nevertheless, the comparison of dose-response curves revealed slight, but uniform shifts in EC50 values (LDH, and partially GLU) for precipitated SAS (6/7), gel SAS (2/3), and fumed SAS (3/3). Release of TNF changed inconsistently with higher ultrasonic dispersion (USD) energy whereas the induction of H2O2 was diminished in all cases. Electron microscopy and energy dispersive X-ray analysis showed an uptake of SAS into endosomes, lysosomes, endoplasmic reticulum, and different types of phagosomes. The possible effects of different uptake routes are discussed. The study shows that the effect of increased USD energy on the in vitro bioactivity of SAS is surprisingly small. As the in vitro response of AM to different SAS is highly uniform, the production process per se is of minor relevance for toxicity.
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71
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Wang Q, Zhou Y, Fu R, Zhu Y, Song B, Zhong Y, Wu S, Shi Y, Wu Y, Su Y, Zhang H, He Y. Distinct autophagy-inducing abilities of similar-sized nanoparticles in cell culture and live C. elegans. NANOSCALE 2018; 10:23059-23069. [PMID: 30511716 DOI: 10.1039/c8nr05851b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanomaterial-induced autophagy has raised increasing concerns. A variety of nanomaterials, conventional or recently emerged, have the capability of inducing autophagy. As a consequence, it is becoming a popular belief that induction of autophagy is a common response of cells upon exposure to nanoscale materials. In order to clarify whether the "nanoscale" size is the determining factor for the nanomaterials to induce autophagy, we utilized in vitro cultured cells and an in vivo Caenorhabditis elegans (C. elegans) model to systemically investigate the autophagy-inducing ability of nanomaterials. We selected four types of representative nanomaterials with similar sizes, namely silicon nanoparticles (SiNPs), CdTe quantum dots (QDs), carbon dots (CDs) and gold nanoparticles (AuNPs). We demonstrated that, unlike most other nanomaterials tested, no autophagosome formation was detected in cultured cells or in live C. elegans with SiNP treatment. The expression of autophagy-related genes and the lipidation of LGG-1/LC3 in cells and C. elegans also remained unchanged after the treatment of SiNPs. In addition, the ability of the nanomaterials to induce autophagy appeared to correlate with those to incur subcellular organelle damage. Together, our studies demonstrate that SiNPs do not induce autophagy in vitro or in vivo in the selected model organisms and cell lines, thus clarifying that the "nanoscale" size is not the determining factor for the nanomaterials to induce autophagy. The results also suggest that the autophagy-inducing ability of most nanomaterials could be merely a reflection of their detrimental effect on cellular structures.
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Affiliation(s)
- Qin Wang
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences (IBMS), Soochow University, Suzhou, Jiangsu 215123, China.
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72
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Shirasuna K, Karasawa T, Takahashi M. Exogenous nanoparticles and endogenous crystalline molecules as danger signals for the NLRP3 inflammasomes. J Cell Physiol 2018; 234:5436-5450. [PMID: 30370619 DOI: 10.1002/jcp.27475] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022]
Abstract
Inflammasome mechanisms are involved as some of the pathways of sterile inflammation. Inflammasomes are large multiprotein complexes in the cytosol and are a key system for the production of the pivotal inflammatory cytokines, interleukin (IL)-1β and IL-18, and inflammatory cell death called pyroptosis. Although a number of inflammasomes have been described, the nucleotide-binding oligomerization domain-, leucine-rich repeat-, and pyrin domain-containing 3 (NLRP3) is the most extensively investigated inflammasome. Exogenous pathogen-associated molecular patterns released during infection and endogenous crystalline danger/damage-associated molecular patterns (DAMPs) are well-known activators of NLRP3 inflammasomes. In addition, nanoparticle-associated molecular patterns (NAMPs), which are mediated by synthetic materials, including nanomaterials and nanoparticles, are proposed to be new danger signals of NLRP3 inflammasomes. Importantly, NAMP- and DAMP-triggered inflammation, a defining characteristic in inflammatory diseases, is termed as sterile inflammation because it occurs in the absence of foreign pathogens. This review focuses on the role of inflammasomes in exogenous NAMP- and endogenous crystalline DAMP-mediated sterile inflammation. Moreover, many regulatory mechanisms have been identified to attenuate NLRP3 inflammasomes. Therefore, we also summarize endogenous negative regulators of NLRP3 inflammasome activation, particularly induced by NAMPs or crystalline DAMPs.
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Affiliation(s)
- Koumei Shirasuna
- Department of Animal Science, Tokyo University of Agriculture, Japan
| | - Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Japan
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73
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Popp L, Tran V, Patel R, Segatori L. Autophagic response to cellular exposure to titanium dioxide nanoparticles. Acta Biomater 2018; 79:354-363. [PMID: 30134208 DOI: 10.1016/j.actbio.2018.08.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/30/2018] [Accepted: 08/17/2018] [Indexed: 01/12/2023]
Abstract
Titanium dioxide is "generally regarded as safe" and titanium dioxide nanoparticles (TiO2 NPs) are used in a wide variety of consumer products. Cellular exposure to TiO2 NPs results in complex effects on cell physiology including induction of oxidative stress and impairment of lysosomal function, raising concerns about the impact of TiO2 NPs on biological systems. We investigated the effects of TiO2 NPs (15, 50, and 100 nm in diameter) on the lysosome-autophagy system, the main cellular catabolic pathway that mediates degradation of nanomaterials. Specifically, we monitored a comprehensive set of markers of the lysosome-autophagy system upon cell exposure to TiO2 NPs, ranging from transcriptional activation of genes required for the formation of autophagic vesicles to clearance of autophagic substrates. This study reveals that uptake of TiO2 NPs induces a response of the lysosome-autophagy system mediated by the transcription factor EB and consequent upregulation of the autophagic flux. Prolonged exposure to TiO2 NPs, however, was found to induce lysosomal dysfunction and membrane permeabilization, leading to a blockage in autophagic flux. Results from this study will inform the design of TiO2 NP based devices with specific autophagy-modulating properties.
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74
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Liu Q, Wang X, Xia T. Creative use of analytical techniques and high-throughput technology to facilitate safety assessment of engineered nanomaterials. Anal Bioanal Chem 2018; 410:6097-6111. [PMID: 30066194 DOI: 10.1007/s00216-018-1289-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/15/2018] [Accepted: 07/23/2018] [Indexed: 12/21/2022]
Abstract
With the rapid development and numerous applications of engineered nanomaterials (ENMs) in science and technology, their impact on environmental health and safety should be considered carefully. This requires an effective platform to investigate the potential adverse effects and hazardous biological outcomes of numerous nanomaterials and their formulations. We consider predictive toxicology a rational approach for this effort, which utilizes mechanism-based in vitro high-throughput screening (HTS) to make predictions on ENMs' adverse outcomes in vivo. Moreover, this approach is able to link the physicochemical properties of ENMs to toxicity that allows the development of structure-activity relationships (SARs). To build this predictive platform, extensive analytical and bioanalytical techniques and tools are required. In this review, we described the predictive toxicology approach and the accompanying analytical and bioanalytical techniques. In addition, we elaborated several successful examples as a result of using the predictive approach.
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Affiliation(s)
- Qi Liu
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA, 90095, USA.,California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Xiang Wang
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA, 90095, USA.,California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Tian Xia
- Center of Environmental Implications of Nanotechnology (UC CEIN), University of California, Los Angeles, CA, 90095, USA. .,California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA. .,Division of NanoMedicine, Department of Medicine, University of California, 570 Westwood Plaza, Los Angeles, CA, 90095, USA.
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75
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Yang BR, Yuen SC, Fan GY, Cong WH, Leung SW, Lee SMY. Identification of certain Panax species to be potential substitutes for Panax notoginseng in hemostatic treatments. Pharmacol Res 2018; 134:1-15. [DOI: 10.1016/j.phrs.2018.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 04/19/2018] [Accepted: 05/09/2018] [Indexed: 12/13/2022]
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76
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Hou Y, Zhang W, Li S, Wang Z, Zhong H, Liu Z, Guo Z. Investigating the autophagy pathway in silver@gold core-shell nanoparticles-treated cells using surface-enhanced Raman scattering. Analyst 2018; 143:3677-3685. [PMID: 29975376 DOI: 10.1039/c8an00405f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Previous studies have shown that nanoparticles can induce autophagy, and the main approach for investigating autophagy induced by nanoparticles is via traditional methods such as TEM and biochemical assay. These methods measurements suffer from the disadvantages of complicated experimental processes, cell destruction, as well as lack of characterization of individual stages of the autophagy pathway. Surface-enhanced Raman scattering (SERS) has been extensively used in biological applications. With the combination of SERS and chemometric methods, such as principal component analysis-linear discriminant analysis (PCA-LDA), identification and distribution mapping of endosomes and lysosomes in the endocytosis of Au nanoparticles has been achieved by segregating the spectra from complex SERS data sets in the previous study. In this study, silver@gold core-shell nanoparticles (Ag@Au NPs) were synthesized by reduction of gold ions on the surface of the silver nanoparticles, and the autophagy induced by Ag@Au NPs was studied with Ag@Au NPs serving both as an autophagy inducer and as a high-performance SERS substrate. Pro-survival autophagy induced by Ag@Au NPs was proved by the western blot assay, flow cytometry and fluorescent staining. Furthermore, the autophagy pathway in Ag@Au NPs-treated cells was first elucidated by SERS combined with a modified reference-based PCA-LDA methodology. This study provides a feasible way of using SERS to elucidate the autophagy pathway induced by nanoparticles.
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Affiliation(s)
- Yuqing Hou
- MOE Key Laboratory of Laser Life Science & SATCM Third Grade Laboratory of Chinese Medicine and Photonics Technology, College of Biophotonics, South China Normal University, Guangzhou 510631, Guangdong, China.
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77
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Muro S. Alterations in Cellular Processes Involving Vesicular Trafficking and Implications in Drug Delivery. Biomimetics (Basel) 2018; 3:biomimetics3030019. [PMID: 31105241 PMCID: PMC6352689 DOI: 10.3390/biomimetics3030019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 12/31/2022] Open
Abstract
Endocytosis and vesicular trafficking are cellular processes that regulate numerous functions required to sustain life. From a translational perspective, they offer avenues to improve the access of therapeutic drugs across cellular barriers that separate body compartments and into diseased cells. However, the fact that many factors have the potential to alter these routes, impacting our ability to effectively exploit them, is often overlooked. Altered vesicular transport may arise from the molecular defects underlying the pathological syndrome which we aim to treat, the activity of the drugs being used, or side effects derived from the drug carriers employed. In addition, most cellular models currently available do not properly reflect key physiological parameters of the biological environment in the body, hindering translational progress. This article offers a critical overview of these topics, discussing current achievements, limitations and future perspectives on the use of vesicular transport for drug delivery applications.
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Affiliation(s)
- Silvia Muro
- Institute for Bioscience and Biotechnology Research and Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA.
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain.
- Institute for Bioengineering of Catalonia (IBEC) of the Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain.
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78
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Wang J, Li Y, Duan J, Yang M, Yu Y, Feng L, Yang X, Zhou X, Zhao Z, Sun Z. Silica nanoparticles induce autophagosome accumulation via activation of the EIF2AK3 and ATF6 UPR pathways in hepatocytes. Autophagy 2018; 14:1185-1200. [PMID: 29940794 DOI: 10.1080/15548627.2018.1458174] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Autophagy dysfunction is a potential toxic effect of nanoparticles. Previous studies have indicated that silica nanoparticles (SiNPs) induce macroautophagy/autophagy dysfunction, while the precise mechanisms remain uncertain. Hence, the present study investigated the molecular mechanisms by which SiNPs enhanced autophagosome synthesis, which then contributed to autophagy dysfunction. First, the effects of SiNPs on autophagy and autophagic flux were verified using transmission electron microscopy, laser scanning confocal microscopy, and western blot assays. Then, the activation of endoplasmic reticular (ER) stress was validated to be through the EIF2AK3 and ATF6 UPR pathways but not the ERN1-XBP1 pathway, along with the upregulation of downstream ATF4 and DDIT3. Thereafter, the ER stress inhibitor 4-phenylbutyrate (4-PBA) was used to verify that SiNP-induced autophagy could be influenced by ER stress. Furthermore, specialized lentiviral shRNA were employed to determine that autophagy was induced via specific activation of the EIF2AK3 and ATF6 UPR pathways. Finally, the 2 autophagic genes LC3B and ATG12 were found to be transcriptionally upregulated by downstream ATF4 and DDIT3 in ER stress, which contributed to the SiNP-enhanced autophagosome synthesis. Taken together, these data suggest that SiNPs induced autophagosome accumulation via the activation of the EIF2AK3 and ATF6 UPR pathways in hepatocytes, which offers a new insight into detailed molecular mechanisms underlying SiNP-induced autophagy dysfunction, and specifically how UPR pathways regulate key autophagic genes. This work provides novel evidence for the study of toxic effects and risk assessment of SiNPs.
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Affiliation(s)
- Ji Wang
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Yang Li
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Junchao Duan
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Man Yang
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Yang Yu
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Lin Feng
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Xiaozhe Yang
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Xianqing Zhou
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
| | - Zhendong Zhao
- c MOH Key Laboratory of Systems Biology of Pathogens , Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing , China
| | - Zhiwei Sun
- a Department of Toxicology and Sanitary Chemistry , School of Public Health, Capital Medical University , Beijing , P.R. China.,b Beijing Key Laboratory of Environmental Toxicology , Capital Medical University , Beijing , P.R. China
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79
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Wang Y, Tang M. Review of in vitro toxicological research of quantum dot and potentially involved mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:940-962. [PMID: 29996464 DOI: 10.1016/j.scitotenv.2017.12.334] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/28/2017] [Accepted: 12/29/2017] [Indexed: 06/08/2023]
Abstract
Quantum dots (QDs) are one of emerging engineering nanomaterials (NMs) with advantageous properties which can act as candidates for clinical imaging and diagnosis. Nevertheless, toxicological studies have proved that QDs for better or worse pose threats to diverse systems which are attributed to the release of metal ion and specific characteristics of nanoparticles (NPs), hampering the wide use of QDs to biomedical area. It has been postulated that mechanisms of toxicity evoked by QDs have implications in oxidative stress, reactive oxygen species (ROS), inflammation and release of metal ion. Meanwhile, DNA damage and disturbance of subcellular structures would occur during QDs treatment. This review is intended to conclude the cytotoxicity of QDs in multiple systems, as well as the potential mechanisms on the basis of recent literatures. Finally, toxicity-related factors are clarified, among which chirality seems to be a newly proposed influence factor that determines the destiny of cells in response to QDs. However, details of interaction between QDs and cells have not been well elucidated. Given that molecular mechanisms of QDs-induced toxicity are still not clearly elucidated, further research should be required for this meaningful topic.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu, 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu, 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu, 210009, China.
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80
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Han Y, Lee DK, Kim SH, Lee S, Jeon S, Cho WS. High inflammogenic potential of rare earth oxide nanoparticles: the New Hazardous Entity. Nanotoxicology 2018; 12:712-728. [DOI: 10.1080/17435390.2018.1472311] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Youngju Han
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Dong-Keon Lee
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Sung-Hyun Kim
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Seonghan Lee
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Soyeon Jeon
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
| | - Wan-Seob Cho
- Lab of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan, Republic of Korea
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81
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Noninvasive Imaging of Stored Red Blood Cell-Transfusion Aggravating Sepsis-Induced Liver Injury Associated with Increased Activation of M1-Polarized Kupffer Cells. Shock 2018; 48:459-466. [PMID: 28333715 PMCID: PMC5571877 DOI: 10.1097/shk.0000000000000867] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Supplemental Digital Content is available in the text Liver injury has a critical effect on the severity and outcome of sepsis. The impact of stored red blood cells (RBCs) on the pathogenesis of sepsis-associated hepatic injury is not well understood. Therefore, to investigate the effects of stored-RBC transfusion on sepsis-induced liver damage as well as the associated mechanism, we constructed a sepsis mouse model enabling noninvasive imaging of bacterial infection caused by Pseudomonas aeruginosa, a common gram-negative respiratory pathogen. We showed that transfusions with stored RBCs enhanced sepsis-induced liver injury in vivo, and liver injury exacerbated the severity of sepsis and decreased survival in P aeruginosa-infected mice. Stored-RBC transfusions enhanced the production of proinflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin 6 (IL-6), and IL-1β, which play important roles in sepsis-associated liver injury in P aeruginosa-infected mice. Further study showed that the enhanced inflammation observed was associated with increased activation of M1-polarized Kupffer cells, which produce many inflammatory cytokines, including TNF-α and IL-6. Moreover, the M1-polarized Kupffer cells and secreted proinflammatory cytokines exerted their effects on hepatocytes through enhanced Jun N-terminal kinase activation and inhibited nuclear factor-kappaB activation, demonstrating that transfusion with stored RBCs disrupted the balance between cell survival and cell death in the liver. Understanding the mechanisms whereby stored RBCs might contribute to these complications will likely be helpful in providing guidance toward making transfusions safer.
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82
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Wang Y, Tang M. Dysfunction of various organelles provokes multiple cell death after quantum dot exposure. Int J Nanomedicine 2018; 13:2729-2742. [PMID: 29765216 PMCID: PMC5944465 DOI: 10.2147/ijn.s157135] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Quantum dots (QDs) are different from the materials with the micrometer scale. Owing to the superiority in fluorescence and optical stability, QDs act as possible diagnostic and therapeutic tools for application in biomedical field. However, potential threats of QDs to human health hamper their wide utilization in life sciences. It has been reported that oxidative stress and inflammation are involved in toxicity caused by QDs. Recently, accumulating research unveiled that disturbance of subcellular structures plays a magnificent role in cytotoxicity of QDs. Diverse organelles would collapse during QD treatment, including DNA damage, endoplasmic reticulum stress, mitochondrial dysfunction and lysosomal rupture. Different forms of cellular end points on the basis of recent research have been concluded. Apart from apoptosis and autophagy, a new form of cell death termed pyroptosis, which is finely orchestrated by inflammasome complex and gasdermin family with secretion of interleukin-1 beta and interleukin-18, was also summarized. Finally, several potential cellular signaling pathways were also listed. Activation of Toll-like receptor-4/myeloid differentiation primary response 88, nuclear factor kappa-light-chain-enhancer of activated B cells and NACHT, LRR and PYD domains-containing protein 3 inflammasome pathways by QD exposure is associated with regulation of cellular processes. With the development of QDs, toxicity evaluation is far behind its development, where specific mechanisms of toxic effects are not clearly defined. Further studies concerned with this promising area are urgently required.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu, People's Republic of China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu, People's Republic of China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, Jiangsu, People's Republic of China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, Jiangsu, People's Republic of China
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83
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Mirshafiee V, Sun B, Chang CH, Liao YP, Jiang W, Jiang J, Liu X, Wang X, Xia T, Nel AE. Toxicological Profiling of Metal Oxide Nanoparticles in Liver Context Reveals Pyroptosis in Kupffer Cells and Macrophages versus Apoptosis in Hepatocytes. ACS NANO 2018; 12:3836-3852. [PMID: 29543433 PMCID: PMC5946698 DOI: 10.1021/acsnano.8b01086] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The liver and the mononuclear phagocyte system are a frequent target for engineered nanomaterials, either as a result of particle uptake and spread from primary exposure sites or systemic administration of therapeutic and imaging nanoparticles. In this study, we performed a comparative analysis of the toxicological impact of 29 metal oxide nanoparticles (NPs), some commonly used in consumer products, in transformed or primary Kupffer cells (KCs) and hepatocytes. We not only observed differences between KCs and hepatocytes, but also differences in the toxicological profiles of transition-metal oxides (TMOs, e. g., Co3O4) versus rare-earth oxide (REO) NPs ( e. g., Gd2O3). While pro-oxidative TMOs induced the activation of caspases 3 and 7, resulting in apoptotic cell death in both cell types, REOs induced lysosomal damage, NLRP3 inflammasome activation, caspase 1 activation, and pyroptosis in KCs. Pyroptosis was accompanied by cell swelling, membrane blebbing, IL-1β release, and increased membrane permeability, which could be reversed by knockdown of the pore forming protein, gasdermin D. Though similar features were not seen in hepatocytes, the investigation of the cytotoxic effects of REO NPs could also be seen to affect macrophage cell lines such as J774A.1 and RAW 264.7 cells as well as bone marrow-derived macrophages. These phagocytic cell types also demonstrated features of pyroptosis and increased IL-1β production. Collectively, these findings demonstrate important mechanistic considerations that can be used for safety evaluation of metal oxides, including commercial products that are developed from these materials.
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Affiliation(s)
- Vahid Mirshafiee
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, California 90095, United States
| | - Bingbing Sun
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, California 90095, United States
- State Key Laboratory of Fine Chemicals, Department of Chemical Engineering, Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China
| | - Chong Hyun Chang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Yu Pei Liao
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, California 90095, United States
| | - Wen Jiang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Jinhong Jiang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Xiangsheng Liu
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, California 90095, United States
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, California 90095, United States
- Address correspondence to: ;
| | - André E. Nel
- Center for Environmental Implications of Nanotechnology, California NanoSystems Institute, University of California Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, California 90095, United States
- Address correspondence to: ;
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84
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Ou H, Liu C, Feng W, Xiao X, Tang S, Mo Z. Role of AMPK in atherosclerosis via autophagy regulation. SCIENCE CHINA-LIFE SCIENCES 2018; 61:1212-1221. [PMID: 29656339 DOI: 10.1007/s11427-017-9240-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 12/05/2017] [Indexed: 01/12/2023]
Abstract
Atherosclerosis is characterized by the accumulation of lipids and deposition of fibrous elements in the vascular wall, which is the primary cause of cardiovascular diseases. Adenosine monophosphate-activated protein kinase (AMPK) is a metabolic sensor of energy metabolism that regulates multiple physiological processes, including lipid and glucose metabolism and the normalization of energy imbalances. Overwhelming evidence indicates that AMPK activation markedly attenuates atherosclerosis development. Autophagy inhibits cell apoptosis and inflammation and promotes cholesterol efflux and efferocytosis. Physiological autophagy is essential for maintaining normal cardiovascular function. Increasing evidence demonstrates that autophagy occurs in developing atherosclerotic plaques. Emerging evidence indicates that AMPK regulates autophagy via a downstream signaling pathway. The complex relationship between AMPK and autophagy has attracted the attention of many researchers because of this close relationship to atherosclerosis development. This review demonstrates the role of AMPK and autophagy in atherosclerosis. An improved understanding of this interrelationship will create novel preventive and therapeutic strategies for atherosclerosis.
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Affiliation(s)
- Hanxiao Ou
- Clinical Anatomy & Reproductive Medicine Application Institute, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China
| | - Chuhao Liu
- Clinical Anatomy & Reproductive Medicine Application Institute, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China.,2016 Grade Excellent Doctor Class of Medical School, University of South China, Hengyang, 421001, China
| | - Wenjie Feng
- Clinical Anatomy & Reproductive Medicine Application Institute, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China.,2015 Grade Medical Imaging Class of Medical School, University of South China, Hengyang, 421001, China
| | - Xinwen Xiao
- Clinical Anatomy & Reproductive Medicine Application Institute, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China.,2015 Grade Medical Imaging Class of Medical School, University of South China, Hengyang, 421001, China
| | - Shengsong Tang
- Clinical Anatomy & Reproductive Medicine Application Institute, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China. .,Center for Life Science, Hunan University of Medicine, Huaihua, 418000, China.
| | - Zhongcheng Mo
- Clinical Anatomy & Reproductive Medicine Application Institute, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, 421001, China.
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85
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Wan H, Chen J, Zhu X, Liu L, Wang J, Zhu X. Titania-Coated Gold Nano-Bipyramids for Blocking Autophagy Flux and Sensitizing Cancer Cells to Proteasome Inhibitor-Induced Death. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700585. [PMID: 29593960 PMCID: PMC5867123 DOI: 10.1002/advs.201700585] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/16/2017] [Indexed: 05/18/2023]
Abstract
Targeting protein degradation is recognized as a valid approach to cancer therapy. The ubiquitin-proteasome system (UPS) and the autophagy-lysosome pathway are two major pathways for intracellular protein degradation. Proteasome inhibitors such as bortezomib are clinically approved for treating malignancies, but to date, they are still unsatisfactory for cancer therapy. This study identifies titania-coated gold nano-bipyramid (NBP/TiO2) nanostructures as an autophagic flux inhibitor, as the smallest NBP/TiO2 nanostructures induce significant autophagosome accumulation in human glioblastoma U-87 MG cells via blocking the autophagosome-lysosome fusion process and inhibiting lysosomal degradation. Further study indicates that NBP/TiO2 nanostructures reduce the intracellular level of mature cathepsin B and directly inhibit the proteolytic activity of cathepsin B, thereby further inhibiting trypsin-like proteolytic activity, which is a potential cotarget for UPS inhibition. NBP/TiO2 nanostructures interact synergistically with bortezomib to suppress the viability of U-87 MG cells, as the combined treatment synergistically induces the intracellular accumulation of ubiquitinated protein and endoplasmic reticulum stress. In addition, photothermal therapy further synergistically reduces the cell viability. In summary, this study suggests that NBP/TiO2 nanostructures function as a promising anticancer agent in combination with proteasome inhibitors.
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Affiliation(s)
- Hong‐Ye Wan
- State Key Laboratory of Quality Research in Chinese MedicineMacau Institute for Applied Research in Medicine and HealthMacau University of Science and TechnologyAvenida Wai LongTaipaMacau SARChina
| | - Jian‐Li Chen
- State Key Laboratory of Quality Research in Chinese MedicineMacau Institute for Applied Research in Medicine and HealthMacau University of Science and TechnologyAvenida Wai LongTaipaMacau SARChina
| | - Xingzhong Zhu
- Department of PhysicsThe Chinese University of Hong KongShatinHong Kong SARChina
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese MedicineMacau Institute for Applied Research in Medicine and HealthMacau University of Science and TechnologyAvenida Wai LongTaipaMacau SARChina
| | - Jianfang Wang
- Department of PhysicsThe Chinese University of Hong KongShatinHong Kong SARChina
| | - Xiao‐Ming Zhu
- State Key Laboratory of Quality Research in Chinese MedicineMacau Institute for Applied Research in Medicine and HealthMacau University of Science and TechnologyAvenida Wai LongTaipaMacau SARChina
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86
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Chen N, Han Y, Luo Y, Zhou Y, Hu X, Yu Y, Xie X, Yin M, Sun J, Zhong W, Zhao Y, Song H, Fan C. Nanodiamond-based non-canonical autophagy inhibitor synergistically induces cell death in oxygen-deprived tumors. MATERIALS HORIZONS 2018; 5:1204-1210. [DOI: 10.1039/c8mh00993g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Blockage of autophagic flux by nanodiamonds induces apoptosis in hypoxic tumor cells with minimal toxicity to normal tissues and enhances the effects of anti-angiogenic therapy.
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87
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Gao J, Li R, Wang F, Liu X, Zhang J, Hu L, Shi J, He B, Zhou Q, Song M, Zhang B, Qu G, Liu S, Jiang G. Determining the Cytotoxicity of Rare Earth Element Nanoparticles in Macrophages and the Involvement of Membrane Damage. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:13938-13948. [PMID: 29121463 DOI: 10.1021/acs.est.7b04231] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Rare earthelement nanomaterials (REE NPs) hold considerable promise, with high availability and potential applications as superconductors, imaging agents, glass additives, fertilizers additives and feed additives. These results in potential REE NP exposure to humans and the environment through different routes and adverse effects induced by biological application of these materials are becoming an increasing concern. This study investigates the cytotoxicity of REE NPs: nLa2O3, nEu2O3, nDy2O3 and nYb2O3 from 2.5 to 80 μg/mL, in macrophages. A significant difference was observed in the extent of cytotoxicity induced in macrophages by differential REE NPs. The high-atomic number materials (i.e., nYb2O3) tending to be no toxic whereas low-atomic number materials (nLa2O3 and nEu2O3 and nDy2O3) induced 75.1%, 53.6% and 20.7% dead cells. With nLa2O3 as the representative material, we demonstrated that nLa2O3 induced cellular membrane permeabilization, through the sequestration of phosphates from membrane. The further mechanistic investigation established that membrane damage induced intracellular calcium increased to 3.0- to 7.3-fold compared to control cells. This caused the sustained overload of mitochondrial calcium by approximately 2.4-fold, which regulated cell necrosis. In addition, the injury of cellular membrane led to the release of cathepsins into cytosol which also contributed to cell death. This detailed investigation of signaling pathways driving REE NP-induced toxicity to macrophages is essential for better understanding of their potential health risks to humans and the environment.
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Affiliation(s)
- Jie Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Ruibin Li
- School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Soochow University , Suzhou, Jiangsu 215123, People's Republic of China
| | - Fengbang Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Xiaolei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Jie Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Bin He
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Maoyong Song
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Bin Zhang
- School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, People's Republic of China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
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88
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Kostiv U, Lobaz V, Kučka J, Švec P, Sedláček O, Hrubý M, Janoušková O, Francová P, Kolářová V, Šefc L, Horák D. A simple neridronate-based surface coating strategy for upconversion nanoparticles: highly colloidally stable 125I-radiolabeled NaYF 4:Yb 3+/Er 3+@PEG nanoparticles for multimodal in vivo tissue imaging. NANOSCALE 2017; 9:16680-16688. [PMID: 29067394 DOI: 10.1039/c7nr05456d] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In this report, monodisperse upconversion NaYF4:Yb3+/Er3+ nanoparticles with superior optical properties were synthesized by the oleic acid-stabilized high-temperature co-precipitation of lanthanide chlorides in octadec-1-ene as a high-boiling organic solvent. To render the particles with biocompatibility and colloidal stability in bioanalytically relevant phosphate buffered saline (PBS), they were modified by using in-house synthesized poly(ethylene glycol)-neridronate (PEG-Ner), a bisphosponate. The NaYF4:Yb3+/Er3+@PEG nanoparticles showed excellent long-term stability in PBS and/or albumin without any aggregation or morphology transformation. The in vitro cytotoxicity of the nanoparticles was evaluated using primary fibroblasts (HF) and a cell line derived from human cervical carcinoma (HeLa). The particles were subsequently modified by using Bolton-Hunter-hydroxybisphosphonate to enable radiolabeling with 125I for single-photon emission computed tomography/computed tomography (SPECT/CT) bimodal imaging to monitor the biodistribution of the nanoparticles in non-tumor mice. The bimodal upconversion 125I-radiolabeled NaYF4:Yb3+/Er3+@PEG nanoparticles are prospective for near-infrared (NIR) photothermal/photodynamic and SPECT/CT cancer theranostics.
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Affiliation(s)
- Uliana Kostiv
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Volodymyr Lobaz
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Jan Kučka
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Pavel Švec
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Ondřej Sedláček
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Martin Hrubý
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
| | - Pavla Francová
- Center for Advanced Preclinical Imaging, First Faculty of Medicine, Charles University, Salmovská 3, 120 00 Prague 2, Czech Republic
| | - Věra Kolářová
- Center for Advanced Preclinical Imaging, First Faculty of Medicine, Charles University, Salmovská 3, 120 00 Prague 2, Czech Republic
| | - Luděk Šefc
- Center for Advanced Preclinical Imaging, First Faculty of Medicine, Charles University, Salmovská 3, 120 00 Prague 2, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic.
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89
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Cai X, Lee A, Ji Z, Huang C, Chang CH, Wang X, Liao YP, Xia T, Li R. Reduction of pulmonary toxicity of metal oxide nanoparticles by phosphonate-based surface passivation. Part Fibre Toxicol 2017; 14:13. [PMID: 28431555 PMCID: PMC5399805 DOI: 10.1186/s12989-017-0193-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/10/2017] [Indexed: 01/15/2023] Open
Abstract
Background The wide application of engineered nanoparticles has induced increasing exposure to humans and environment, which led to substantial concerns on their biosafety. Some metal oxides (MOx) have shown severe toxicity in cells and animals, thus safe designs of MOx with reduced hazard potential are desired. Currently, there is a lack of a simple yet effective safe design approach for the toxic MOx. In this study, we determined the key physicochemical properties of MOx that lead to cytotoxicity and explored a safe design approach for toxic MOx by modifying their hazard properties. Results THP-1 and BEAS-2B cells were exposed to 0–200 μg/mL MOx for 24 h, we found some toxic MOx including CoO, CuO, Ni2O3 and Co3O4, could induce reactive oxygen species (ROS) generation and cell death due to the toxic ion shedding and/or oxidative stress generation from the active surface of MOx internalized into lysosomes. We thus hypothesized that surface passivation could reduce or eliminate the toxicity of MOx. We experimented with a series of surface coating molecules and discovered that ethylenediamine tetra (methylene phosphonic acid) (EDTMP) could form stable hexadentate coordination with MOx. The coating layer can effectively reduce the surface activity of MOx with 85-99% decrease of oxidative potential, and 65-98% decrease of ion shedding. The EDTMP coated MOx show negligible ROS generation and cell death in THP-1 and BEAS-2B cells. The protective effect of EDTMP coating was further validated in mouse lungs exposed to 2 mg/kg MOx by oropharyngeal aspiration. After 40 h exposure, EDTMP coated MOx show significant decreases of neutrophil counts, lactate dehydrogenase (LDH) release, MCP-1, LIX and IL-6 in bronchoalveolar lavage fluid (BALF), compared to uncoated particles. The haematoxylin and eosin (H&E) staining results of lung tissue also show EDTMP coating could significantly reduce the pulmonary inflammation of MOx. Conclusions The surface reactivity of MOx including ion shedding and oxidative potential is the dominated physicochemical property that is responsible for the cytotoxicity induced by MOx. EDTMP coating could passivate the surface of MOx, reduce their cytotoxicity and pulmonary hazard effects. This coating would be an effective safe design approach for a broad spectrum of toxic MOx, which will facilitate the safe use of MOx in commercial nanoproducts. Electronic supplementary material The online version of this article (doi:10.1186/s12989-017-0193-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoming Cai
- Center for Genetic Epidemiology and Genomics, School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, 215123, China
| | - Anson Lee
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California, 90095, USA
| | - Zhaoxia Ji
- California NanoSystems Institute, University of California, Los Angeles, California, 90095, USA
| | - Cynthia Huang
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, California, 90095, USA
| | - Chong Hyun Chang
- California NanoSystems Institute, University of California, Los Angeles, California, 90095, USA
| | - Xiang Wang
- California NanoSystems Institute, University of California, Los Angeles, California, 90095, USA
| | - Yu-Pei Liao
- Department of Medicine, University of California, Los Angeles, California, 90095, USA
| | - Tian Xia
- Department of Medicine, University of California, Los Angeles, California, 90095, USA. .,California NanoSystems Institute, University of California, Los Angeles, California, 90095, USA.
| | - Ruibin Li
- School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Jiangsu Provincial Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou, 215123, China.
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90
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Wang X, Sun B, Liu S, Xia T. Structure Activity Relationships of Engineered Nanomaterials in inducing NLRP3 Inflammasome Activation and Chronic Lung Fibrosis. NANOIMPACT 2017; 6:99-108. [PMID: 28480337 PMCID: PMC5415341 DOI: 10.1016/j.impact.2016.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
It has been demonstrated that certain engineered nanomaterials (ENMs) could induce chronic lung inflammation and fibrosis, however, the key structure activity relationships (SARs) that the link the physicochemical properties and the fibrogenic effects have not been thoroughly reviewed. Recently, significant progress has been made in our understanding of the SAR, and it has been demonstrated that ENMs including rare earth oxides (REOs), graphene and graphene oxides (GO), fumed silica, as well as high aspect ratio materials (such as CNTs and CeO2 nanowires etc.) could trigger the NLRP3 inflammasome activation and IL-1β production in macrophages and subsequent series of profibrogenic cytokines, i.e. TGF-β1 and PDGF-AA in vitro and in vivo, resulting in synergistically cell-cell communication among macrophages, epithelial cells, and fibroblasts in a process named epithelial-mesenchymal transition (EMT) and collagen deposition in the lung as the adverse outcomes. Interestingly, different ENMs engage a range of distinct pathways leading to the NLRP3 inflammasome activation and IL-1β production in macrophages, which include frustrated phagocytosis, physical piercing, plasma membrane perturbation or damage to lysosomes due to high aspect ratio, particle structure, surface reactivity, transformation, etc. Furthermore, ENM's properties determine the biopersistence in vivo, which also play a major role in chronic lung fibrosis. Based on these progresses, we reviewed recent findings in the literature on the major SARs leading to chronic lung effects.
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Affiliation(s)
- Xiang Wang
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
| | - Bingbing Sun
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
- Corresponding authors:
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91
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Naatz H, Lin S, Li R, Jiang W, Ji Z, Chang CH, Köser J, Thöming J, Xia T, Nel AE, Mädler L, Pokhrel S. Safe-by-Design CuO Nanoparticles via Fe-Doping, Cu-O Bond Length Variation, and Biological Assessment in Cells and Zebrafish Embryos. ACS NANO 2017; 11:501-515. [PMID: 28026936 PMCID: PMC5824973 DOI: 10.1021/acsnano.6b06495] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
The safe implementation of nanotechnology requires nanomaterial hazard assessment in accordance with the material physicochemical properties that trigger the injury response at the nano/bio interface. Since CuO nanoparticles (NPs) are widely used industrially and their dissolution properties play a major role in hazard potential, we hypothesized that tighter bonding of Cu to Fe by particle doping could constitute a safer-by-design approach through decreased dissolution. Accordingly, we designed a combinatorial library in which CuO was doped with 1-10% Fe in a flame spray pyrolysis reactor. The morphology and structural properties were determined by XRD, BET, Raman spectroscopy, HRTEM, EFTEM, and EELS, which demonstrated a significant reduction in the apical Cu-O bond length while simultaneously increasing the planar bond length (Jahn-Teller distortion). Hazard screening was performed in tissue culture cell lines and zebrafish embryos to discern the change in the hazardous effects of doped vs nondoped particles. This demonstrated that with increased levels of doping there was a progressive decrease in cytotoxicity in BEAS-2B and THP-1 cells, as well as an incremental decrease in the rate of hatching interference in zebrafish embryos. The dissolution profiles were determined and the surface reactions taking place in Holtfreter's solution were validated using cyclic voltammetry measurements to demonstrate that the Cu+/Cu2+ and Fe2+/Fe3+ redox species play a major role in the dissolution process of pure and Fe-doped CuO. Altogether, a safe-by-design strategy was implemented for the toxic CuO particles via Fe doping and has been demonstrated for their safe use in the environment.
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Affiliation(s)
- Hendrik Naatz
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Germany
| | - Sijie Lin
- California NanoSystems Institute, University of California, Los Angeles, California
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai China
| | - Ruibin Li
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California
- School of Radiation Medicine and Protection & School for Radiological and Interdisciplinary Sciences (RAD-X), Medical College of Soochow University, Suzhou, Jiangsu 215123, China
| | - Wen Jiang
- California NanoSystems Institute, University of California, Los Angeles, California
| | - Zhaoxia Ji
- California NanoSystems Institute, University of California, Los Angeles, California
| | - Chong Hyun Chang
- California NanoSystems Institute, University of California, Los Angeles, California
| | - Jan Köser
- Centre for Environmental Research and Sustainable Technology, University of Bremen, Germany
| | - Jorg Thöming
- Centre for Environmental Research and Sustainable Technology, University of Bremen, Germany
| | - Tian Xia
- California NanoSystems Institute, University of California, Los Angeles, California
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California
| | - Andre E. Nel
- California NanoSystems Institute, University of California, Los Angeles, California
- Division of NanoMedicine, Department of Medicine, University of California, Los Angeles, California
| | - Lutz Mädler
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Germany
| | - Suman Pokhrel
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, Germany
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92
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Chen X, Zhang L, Ding S, Lei Q, Fang W. Cisplatin combination drugs induce autophagy in HeLa cells and interact with HSA via electrostatic binding affinity. RSC Adv 2017. [DOI: 10.1039/c7ra00056a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cisplatin combination drugs induce autophagy in HeLa cells and interact with HSAviaelectrostatic binding affinity.
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Affiliation(s)
- Xuerui Chen
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Li Zhang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Shiping Ding
- School of Medicine
- Zhejiang University
- Hangzhou 310058
- China
| | - Qunfang Lei
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Wenjun Fang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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93
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Li R, Mansukhani ND, Guiney LM, Ji Z, Zhao Y, Chang CH, French CT, Miller JF, Hersam MC, Nel AE, Xia T. Identification and Optimization of Carbon Radicals on Hydrated Graphene Oxide for Ubiquitous Antibacterial Coatings. ACS NANO 2016; 10:10966-10980. [PMID: 28024366 PMCID: PMC5612796 DOI: 10.1021/acsnano.6b05692] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
While the antibacterial properties of graphene oxide (GO) have been demonstrated across a spectrum of bacteria, the critical role of functional groups is unclear. To address this important issue, we utilized reduction and hydration methods to establish a GO library with different oxidation, hydroxyl, and carbon radical (•C) levels that can be used to study the impact on antibacterial activity. Using antibiotic-resistant bacteria as a test platform, we found that the •C density is most proximately associated with bacterial killing. Accordingly, hydrated GO (hGO), with the highest •C density, had the strongest antibacterial effects through membrane binding and induction of lipid peroxidation. To explore its potential applications, we demonstrated that coating of catheter and glass surfaces with hGO is capable of killing drug-resistant bacteria. In summary, •C is the principle surface moiety that can be utilized for clinical applications of GO-based antibacterial coatings.
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Affiliation(s)
- Ruibin Li
- School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
- Division of NanoMedicine, Department of Medicine, University of California, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
| | - Nikhita D. Mansukhani
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Linda M. Guiney
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Zhaoxia Ji
- California NanoSystems Institute, University of California, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Yichao Zhao
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Chong Hyun Chang
- California NanoSystems Institute, University of California, 570 Westwood Plaza, Los Angeles, CA 90095, United States
| | - Christopher T. French
- Departments of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095, United States
| | - Jeff F. Miller
- California NanoSystems Institute, University of California, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- Departments of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, CA 90095, United States
| | - Mark C. Hersam
- Departments of Materials Science and Engineering, Chemistry, and Medicine, Northwestern University, Evanston, Illinois 60208, United States
| | - Andre E. Nel
- Division of NanoMedicine, Department of Medicine, University of California, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- Corresponding Author: Tian Xia, Ph.D.; and Andre Nel, Ph.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175, CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680., Tel: (310) 983-3359, Fax: (310) 206-8107, ,
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine, University of California, 10833 Le Conte Ave, Los Angeles, CA 90095, United States
- Center for Environmental Implications of Nanotechnology, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, 570 Westwood Plaza, Los Angeles, CA 90095, United States
- Corresponding Author: Tian Xia, Ph.D.; and Andre Nel, Ph.D., Department of Medicine, Division of NanoMedicine, UCLA School of Medicine, 52-175, CHS, 10833 Le Conte Ave, Los Angeles, CA 90095-1680., Tel: (310) 983-3359, Fax: (310) 206-8107, ,
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94
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Chen RJ, Lee YH, Yeh YL, Wang YJ, Wang BJ. The Roles of Autophagy and the Inflammasome during Environmental Stress-Triggered Skin Inflammation. Int J Mol Sci 2016; 17:E2063. [PMID: 27941683 PMCID: PMC5187863 DOI: 10.3390/ijms17122063] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/29/2016] [Accepted: 12/05/2016] [Indexed: 02/07/2023] Open
Abstract
Inflammatory skin diseases are the most common problem in dermatology. The induction of skin inflammation by environmental stressors such as ultraviolet radiation (UVR), hexavalent chromium (Cr(VI)) and TiO₂/ZnO/Ag nanoparticles (NPs) has been demonstrated previously. Recent studies have indicated that the inflammasome is often wrongly activated by these environmental irritants, thus inducing massive inflammation and resulting in the development of inflammatory diseases. The regulation of the inflammasome with respect to skin inflammation is complex and is still not completely understood. Autophagy, an intracellular degradation system that is associated with the maintenance of cellular homeostasis, plays a key role in inflammasome inactivation. As a housekeeping pathway, cells utilize autophagy to maintain the homeostasis of the organ structure and function when exposed to environmental stressors. However, only a few studies have examined the effect of autophagy and/or the inflammasome on skin pathogenesis. Here we review recent findings regarding the involvement of autophagy and inflammasome activation during skin inflammation. We posit that autophagy induction is a novel mechanism inter-modulating environmental stressor-induced skin inflammation. We also attempt to highlight the role of the inflammasome and the possible underlying mechanisms and pathways reflecting the pathogenesis of skin inflammation induced by UVR, Cr(VI) and TiO₂/ZnO/Ag NPs. A more profound understanding about the crosstalk between autophagy and the inflammasome will contribute to the development of prevention and intervention strategies against human skin disease.
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Affiliation(s)
- Rong-Jane Chen
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan.
| | - Yu-Hsuan Lee
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan.
| | - Ya-Ling Yeh
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan.
| | - Ying-Jan Wang
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan.
- Department of Biomedical Informatics, Asia University, Taichung 41354, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan.
- Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Bour-Jr Wang
- Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan 70428, Taiwan.
- Department of Occupational and Environmental Medicine, National Cheng Kung University Hospital, Tainan 70428, Taiwan.
- Department of Cosmetic Science and Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan.
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95
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Graphene oxide quantum dots disrupt autophagic flux by inhibiting lysosome activity in GC-2 and TM4 cell lines. Toxicology 2016; 374:10-17. [PMID: 27845169 DOI: 10.1016/j.tox.2016.11.009] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 11/11/2016] [Accepted: 11/11/2016] [Indexed: 12/19/2022]
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96
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Yao H, Zhang Y, Liu L, Xu Y, Liu X, Lin J, Zhou W, Wei P, Jin P, Wen LP. Inhibition of lanthanide nanocrystal-induced inflammasome activation in macrophages by a surface coating peptide through abrogation of ROS production and TRPM2-mediated Ca2+ influx. Biomaterials 2016; 108:143-56. [DOI: 10.1016/j.biomaterials.2016.08.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 08/16/2016] [Accepted: 08/20/2016] [Indexed: 02/07/2023]
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97
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Xia T, Zhu Y, Mu L, Zhang ZF, Liu S. Pulmonary diseases induced by ambient ultrafine and engineered nanoparticles in twenty-first century. Natl Sci Rev 2016. [PMID: 28649460 PMCID: PMC5473351 DOI: 10.1093/nsr/nww064] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Air pollution is a severe threat to public health globally, affecting everyone in developed and developing countries alike. Among different air pollutants, particulate matter (PM), particularly combustion-produced fine PM (PM2.5) has been shown to play a major role in inducing various adverse health effects. Strong associations have been demonstrated by epidemiological and toxicological studies between increases in PM2.5 concentrations and premature mortality, cardiopulmonary diseases, asthma and allergic sensitization, and lung cancer. The mechanisms of PM-induced toxicological effects are related to their size, chemical composition, lung clearance and retention, cellular oxidative stress responses and pro-inflammatory effects locally and systemically. Particles in the ultrafine range (<100 nm), although they have the highest number counts, surface area and organic chemical content, are often overlooked due to insufficient monitoring and risk assessment. Yet, ample studies have demonstrated that ambient ultrafine particles have higher toxic potential compared with PM2.5. In addition, the rapid development of nanotechnology, bringing ever-increasing production of nanomaterials, has raised concerns about the potential human exposure and health impacts. All these add to the complexity of PM-induced health effects that largely remains to be determined, and mechanistic understanding on the toxicological effects of ambient ultrafine particles and nanomaterials will be the focus of studies in the near future.
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Affiliation(s)
- Tian Xia
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, Los Angeles, CA 90034, USA
- Corresponding authors. E-mails: ;
| | - Yifang Zhu
- Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Lina Mu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, SUNY, Buffalo, NY 14214, USA
| | - Zuo-Feng Zhang
- Department of Epidemiology, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Corresponding authors. E-mails: ;
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98
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Sayan M, Mossman BT. The NLRP3 inflammasome in pathogenic particle and fibre-associated lung inflammation and diseases. Part Fibre Toxicol 2016; 13:51. [PMID: 27650313 PMCID: PMC5029018 DOI: 10.1186/s12989-016-0162-4] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 09/08/2016] [Indexed: 02/07/2023] Open
Abstract
The concept of the inflammasome, a macromolecular complex sensing cell stress or danger signals and initiating inflammation, was first introduced approximately a decade ago. Priming and activation of these intracellular protein platforms trigger the maturation of pro-inflammatory chemokines and cytokines, most notably, interleukin-1β (IL-1β) and IL-18, to promulgate innate immune defenses. Although classically studied in models of gout, Type II diabetes, Alzheimer's disease, and multiple sclerosis, the importance and mechanisms of action of inflammasome priming and activation have recently been elucidated in cells of the respiratory tract where they modulate the responses to a number of inhaled pathogenic particles and fibres. Most notably, inflammasome activation appears to regulate the balance between tissue repair and inflammation after inhalation of pathogenic pollutants such as asbestos, crystalline silica (CS), and airborne particulate matter (PM). Different types of fibres and particles may have distinct mechanisms of inflammasome interaction and outcome. This review summarizes the structure and function of inflammasomes, the interplay between various chemokines and cytokines and cell types of the lung and pleura after inflammasome activation, and the events leading to the development of non-malignant (allergic airway disease and chronic obstructive pulmonary disease (COPD), asbestosis, silicosis) and malignant (mesothelioma, lung cancer) diseases by pathogenic particulates. In addition, it emphasizes the importance of communication between cells of the immune system, target cells of these diseases, and components of the extracellular matrix (ECM) in regulation of inflammasome-mediated events.
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Affiliation(s)
- Mutlay Sayan
- Department of Medicine, University of Vermont College of Medicine, 111 Colchester Avenue, Burlington, 05401, VT, USA
| | - Brooke T Mossman
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, 89 Beaumont Avenue, Burlington, 05405, VT, USA.
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99
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Abstract
Vaccination is a biological process that administrates antigenic materials to stimulate an individual's immune system to develop immunity to a specific pathogen. It is the most effective tool to prevent illness and death from infectious diseases or diseases leading to cancers. Because many recombinant and synthetic antigens are poorly immunogenic, adjuvant is essentially added to vaccine formula that can potentiate the immune responses, offer better protection against pathogens and reduce the amount of antigens needed for protective immunity. To date, there are nearly 100 different types of adjuvants associated with about 400 vaccines that are either commercially available or under development. Among these adjuvants, many of them are particulates and nano-scale in nature. Nanoparticles represent a wide range of materials with novel physicochemical properties that exhibit immunostimulatory effects. However, the mechanistic understandings on how their physicochemical properties affect immunopotentiation remain elusive. In this article, we aim to review current development status of nanomaterial-based vaccine adjuvants, and further discuss their acting mechanisms, understanding of which will benefit the rational design of effective vaccine adjuvants with improved immunogenicity for prevention of infectious disease as well as therapeutic cancer treatment.
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Affiliation(s)
- Bingbing Sun
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
- School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, 116024, Dalian, China
| | - Tian Xia
- Division of NanoMedicine, Department of Medicine; University of California, Los Angeles, California, 90095, United States
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California, Los Angeles, California, 90095, United States
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100
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Jessop F, Hamilton RF, Rhoderick JF, Shaw PK, Holian A. Autophagy deficiency in macrophages enhances NLRP3 inflammasome activity and chronic lung disease following silica exposure. Toxicol Appl Pharmacol 2016; 309:101-10. [PMID: 27594529 DOI: 10.1016/j.taap.2016.08.029] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/20/2016] [Accepted: 08/30/2016] [Indexed: 01/12/2023]
Abstract
Autophagy is an important metabolic mechanism that can promote cellular survival following injury. The specific contribution of autophagy to silica-induced inflammation and disease is not known. The objective of these studies was to determine the effects of silica exposure on the autophagic pathway in macrophages, as well as the general contribution of autophagy in macrophages to inflammation and disease. Silica exposure enhanced autophagic activity in vitro in Bone Marrow derived Macrophages and in vivo in Alveolar Macrophages isolated from silica-exposed mice. Impairment of autophagy in myeloid cells in vivo using Atg5(fl/fl)LysM-Cre(+) mice resulted in enhanced cytotoxicity and inflammation after silica exposure compared to littermate controls, including elevated IL-18 and the alarmin HMGB1 in the whole lavage fluid. Autophagy deficiency caused some spontaneous inflammation and disease. Greater silica-induced acute inflammation in Atg5(fl/fl)LysM-Cre(+) mice correlated with increased fibrosis and chronic lung disease. These studies demonstrate a critical role for autophagy in suppressing silica-induced cytotoxicity and inflammation in disease development. Furthermore, this data highlights the importance of basal autophagy in macrophages and other myeloid cells in maintaining lung homeostasis.
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Affiliation(s)
- Forrest Jessop
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, United States
| | - Raymond F Hamilton
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, United States
| | - Joseph F Rhoderick
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, United States
| | - Pamela K Shaw
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, United States
| | - Andrij Holian
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, United States.
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