1
|
Camacho-Toledano C, Machín-Díaz I, Lebrón-Galán R, González-Mayorga A, Palomares FJ, Serrano MC, Clemente D. Graphene oxide films as a novel tool for the modulation of myeloid-derived suppressor cell activity in the context of multiple sclerosis. NANOSCALE 2024; 16:7515-7531. [PMID: 38498071 DOI: 10.1039/d3nr05351b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Despite the pharmacological arsenal approved for Multiple Sclerosis (MS), there are treatment-reluctant patients for whom cell therapy appears as the only therapeutic alternative. Myeloid-derived suppressor cells (MDSCs) are immature cells of the innate immunity able to control the immune response and to promote oligodendroglial differentiation in the MS animal model experimental autoimmune encephalomyelitis (EAE). However, when isolated and cultured for cell therapy purposes, MDSCs lose their beneficial immunomodulatory properties. To prevent this important drawback, culture devices need to be designed so that MDSCs maintain a state of immaturity and immunosuppressive function similar to that exerted in the donor organism. With this aim, we select graphene oxide (GO) as a promising candidate as it has been described as a biocompatible nanomaterial with the capacity to biologically modulate different cell types, yet its immunoactive potential has been poorly explored to date. In this work, we have fabricated GO films with two distintive redox and roughness properties and explore their impact in MDSC culture right after isolation. Our results show that MDSCs isolated from immune organs of EAE mice maintain an immature phenotype and highly immunosuppressive activity on T lymphocytes after being cultured on highly-reduced GO films (rGO200) compared to those grown on conventional glass coverslips. This immunomodulation effect is depleted when MDSCs are exposed to slightly rougher and more oxidized GO substrates (rGO90), in which cells experience a significant reduction in cell size associated with the activation of apoptosis. Taken together, the exposure of MDSCs to GO substrates with different redox state and roughness is presented as a good strategy to control MDSC activity in vitro. The versatility of GO nanomaterials in regards to the impact of their physico-chemical properties in immunomodulation opens the door to their selective therapeutic potential for pathologies where MDSCs need to be enhanced (MS) or inhibited (cancer).
Collapse
Affiliation(s)
- Celia Camacho-Toledano
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Carlos III Health Institute, Av. Monforte de Lemos, 3-5, 28029-Madrid, Spain
| | - Isabel Machín-Díaz
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Carlos III Health Institute, Av. Monforte de Lemos, 3-5, 28029-Madrid, Spain
| | - Rafael Lebrón-Galán
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
| | - Ankor González-Mayorga
- Laboratory of Interfaces for Neural Repair, Hospital Nacional de Parapléjicos, SESCAM, Finca La Peraleda s/n, 45071- Toledo, Spain
| | - Francisco J Palomares
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Calle Sor Juana Inés de la Cruz 3, 28049-Madrid, Spain.
| | - María C Serrano
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Calle Sor Juana Inés de la Cruz 3, 28049-Madrid, Spain.
| | - Diego Clemente
- Neuroimmune-Repair Group, Hospital Nacional de Parapléjicos (HNP), SESCAM, Finca La Peraleda s/n, 45071-Toledo, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Carlos III Health Institute, Av. Monforte de Lemos, 3-5, 28029-Madrid, Spain
- Design and development of biomaterials for neural regeneration, HNP, Associated Unit to CSIC through ICMM, Finca La Peraleda s/n, 45071-Toledo, Spain
| |
Collapse
|
2
|
Yao Y, Zhang T, Tang M. Toxicity mechanism of engineered nanomaterials: Focus on mitochondria. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 343:123231. [PMID: 38154775 DOI: 10.1016/j.envpol.2023.123231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 12/30/2023]
Abstract
With the rapid development of nanotechnology, engineered nanomaterials (ENMs) are widely used in various fields. This has exacerbated the environmental pollution and human exposure of ENMs. The study of toxicity of ENMs and its mechanism has become a hot research topic in recent years. Mitochondrial damage plays an important role in the toxicity of ENMs. This paper reviews the structural damage, dysfunction, and molecular level perturbations caused by different ENMs to mitochondria, including ZnO NPs, Ag NPs, TiO2 NPs, iron oxide NPs, cadmium-based quantum dots, CuO NPs, silica NPs, carbon-based nanomaterials. Among them, mitochondrial quality control plays an important role in mitochondrial damage. We further summarize the cellular level outcomes caused by mitochondrial damage, mainly including, apoptosis, ferroptosis, pyroptosis and inflammation response. In addition, we concluded that reducing mitochondrial damage at source as well as accelerating recovery from mitochondrial damage through ENMs modification and pharmacological intervention are two feasible strategies. This review further provides new insights into the mitochondrial toxicity mechanisms of ENMs and provides a new foothold for predicting human health and environmental risks of ENMs.
Collapse
Affiliation(s)
- Yongshuai Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, PR China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, PR China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, 210009, PR China.
| |
Collapse
|
3
|
Convertino D, Nencioni M, Russo L, Mishra N, Hiltunen VM, Bertilacchi MS, Marchetti L, Giacomelli C, Trincavelli ML, Coletti C. Interaction of graphene and WS 2 with neutrophils and mesenchymal stem cells: implications for peripheral nerve regeneration. NANOSCALE 2024; 16:1792-1806. [PMID: 38175567 DOI: 10.1039/d3nr04927b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Graphene and bidimensional (2D) materials have been widely used in nerve conduits to boost peripheral nerve regeneration. Nevertheless, the experimental and commercial variability in graphene-based materials generates graphene forms with different structures and properties that can trigger entirely diverse biological responses from all the players involved in nerve repair. Herein, we focus on the graphene and tungsten disulfide (WS2) interaction with non-neuronal cell types involved in nerve tissue regeneration. We synthesize highly crystalline graphene and WS2 with scalable techniques such as thermal decomposition and chemical vapor deposition. The materials were able to trigger the activation of a neutrophil human model promoting Neutrophil Extracellular Traps (NETs) production, particularly under basal conditions, although neutrophils were not able to degrade graphene. Of note is that pristine graphene acts as a repellent for the NET adhesion, a beneficial property for nerve conduit long-term applications. Mesenchymal stem cells (MSCs) have been proposed as a promising strategy for nerve regeneration in combination with a conduit. Thus, the interaction of graphene with MSCs was also investigated, and reduced viability was observed only on specific graphene substrates. Overall, the results confirm the possibility of regulating the cell response by varying graphene properties and selecting the most suitable graphene forms.
Collapse
Affiliation(s)
- Domenica Convertino
- Center for Nanotechnology Innovation @ NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy.
| | - Martina Nencioni
- Department of Pharmacy, University of Pisa, Via Bonanno 6, Pisa, Italy.
| | - Lara Russo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, Pisa, Italy.
| | - Neeraj Mishra
- Center for Nanotechnology Innovation @ NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy.
- Graphene Labs, Istituto Italiano di Tecnologia, Via Morego 30, Genova, Italy
| | - Vesa-Matti Hiltunen
- Center for Nanotechnology Innovation @ NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy.
- Graphene Labs, Istituto Italiano di Tecnologia, Via Morego 30, Genova, Italy
| | | | - Laura Marchetti
- Center for Nanotechnology Innovation @ NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy.
- Department of Pharmacy, University of Pisa, Via Bonanno 6, Pisa, Italy.
| | - Chiara Giacomelli
- Department of Pharmacy, University of Pisa, Via Bonanno 6, Pisa, Italy.
| | | | - Camilla Coletti
- Center for Nanotechnology Innovation @ NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, Pisa, Italy.
- Graphene Labs, Istituto Italiano di Tecnologia, Via Morego 30, Genova, Italy
| |
Collapse
|
4
|
Keremidarska-Markova M, Sazdova I, Ilieva B, Mishonova M, Shkodrova M, Hristova-Panusheva K, Krasteva N, Chichova M. Comprehensive Assessment of Graphene Oxide Nanoparticles: Effects on Liver Enzymes and Cardiovascular System in Animal Models and Skeletal Muscle Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:188. [PMID: 38251152 PMCID: PMC10818754 DOI: 10.3390/nano14020188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/23/2024]
Abstract
The growing interest in graphene oxide (GO) for different biomedical applications requires thoroughly examining its safety. Therefore, there is an urgent need for reliable data on how GO nanoparticles affect healthy cells and organs. In the current work, we adopted a comprehensive approach to assess the influence of GO and its polyethylene glycol-modified form (GO-PEG) under near-infrared (NIR) exposure on several biological aspects. We evaluated the contractility of isolated frog hearts, the activity of two rat liver enzymes-mitochondrial ATPase and diamine oxidase (DAO), and the production of reactive oxygen species (ROS) in C2C12 skeletal muscle cells following direct exposure to GO nanoparticles. The aim was to study the influence of GO nanoparticles at multiple levels-organ; cellular; and subcellular-to provide a broader understanding of their effects. Our data demonstrated that GO and GO-PEG negatively affect heart contractility in frogs, inducing stronger arrhythmic contractions. They increased ROS production in C2C12 myoblasts, whose effects diminished after NIR irradiation. Both nanoparticles in the rat liver significantly stimulated DAO activity, with amplification of this effect after NIR irradiation. GO did not uncouple intact rat liver mitochondria but caused a concentration-dependent decline in ATPase activity in freeze/thaw mitochondria. This multifaceted investigation provides crucial insights into GOs potential for diverse implications in biological systems.
Collapse
Affiliation(s)
- Milena Keremidarska-Markova
- Faculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria; (M.K.-M.); (I.S.); (B.I.); (M.M.); (M.S.)
| | - Iliyana Sazdova
- Faculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria; (M.K.-M.); (I.S.); (B.I.); (M.M.); (M.S.)
| | - Bilyana Ilieva
- Faculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria; (M.K.-M.); (I.S.); (B.I.); (M.M.); (M.S.)
| | - Milena Mishonova
- Faculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria; (M.K.-M.); (I.S.); (B.I.); (M.M.); (M.S.)
| | - Milena Shkodrova
- Faculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria; (M.K.-M.); (I.S.); (B.I.); (M.M.); (M.S.)
| | - Kamelia Hristova-Panusheva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Natalia Krasteva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Mariela Chichova
- Faculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria; (M.K.-M.); (I.S.); (B.I.); (M.M.); (M.S.)
| |
Collapse
|
5
|
Pang Y, Qu J, Zhang H, Cao Y, Ma X, Wang S, Wang J, Wu J, Zhang T. Nose-to-brain translocation and nervous system injury in response to indium tin oxide nanoparticles of long-term low-dose exposures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167314. [PMID: 37742979 DOI: 10.1016/j.scitotenv.2023.167314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Indium tin oxide (ITO) is a semiconductor nanomaterial with broad application in liquid crystal displays, solar cells, and electrochemical immune sensors. It is worth noting that, with the gradual increase in worker exposure opportunities, the exposure risk in occupational production cannot be ignored. At present, the toxicity of ITO mainly focuses on respiratory toxicity. ITO inhaled through the upper respiratory tract can cause pathological changes such as interstitial pneumonia and pulmonary fibrosis. Still, extrapulmonary toxicity after nanoscale ITO nanoparticle (ITO NPs) exposure, such as long-term effects on the central nervous system, should also be of concern. Therefore, we set up exposure dose experiments (0 mg·kg-1, 3.6 mg·kg-1, and 36 mg·kg-1) based on occupational exposure limits to treat C57BL/6 mice via nasal drops for 15 weeks. Moreover, we conducted a preliminary assessment of the neurotoxicity of ITO NPs (20-30 nm) in vivo. The results indicated that ITO NPs can cause diffuse inflammatory infiltrates in brain tissue, increased glial cell responsiveness, abnormal neuronal cell lineage transition, neuronal migration disorders, and neuronal apoptosis related to the oxidative stress induced by ITO NPs exposure. Hence, our findings provide useful information for the fuller risk assessment of ITO NPs after occupational exposure.
Collapse
Affiliation(s)
- Yanting Pang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Jing Qu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Haopeng Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Yuna Cao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Xinmo Ma
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Shile Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Jianli Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Jingying Wu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China.
| |
Collapse
|
6
|
Xiong Y, Rao Y, Hu J, Luo Z, Chen C. Nanoparticle-Based Photothermal Therapy for Breast Cancer Noninvasive Treatment. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2305140. [PMID: 37561994 DOI: 10.1002/adma.202305140] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/29/2023] [Indexed: 08/12/2023]
Abstract
Rapid advancements in materials science and nanotechnology, intertwined with oncology, have positioned photothermal therapy (PTT) as a promising noninvasive treatment strategy for cancer. The breast's superficial anatomical location and aesthetic significance render breast cancer a particularly pertinent candidate for the clinical application of PTT following melanoma. This review comprehensively explores the research conducted on the various types of nanoparticles employed in PTT for breast cancer and elaborates on their specific roles and mechanisms of action. The integration of PTT with existing clinical therapies for breast cancer is scrutinized, underscoring its potential for synergistic outcomes. Additionally, the mechanisms underlying PTT and consequential modifications to the tumor microenvironment after treatment are elaborated from a medical perspective. Future research directions are suggested, with an emphasis on the development of integrative platforms that combine multiple therapeutic approaches and the optimization of nanoparticle synthesis for enhanced treatment efficacy. The goal is to push the boundaries of PTT toward a comprehensive, clinically applicable treatment for breast cancer.
Collapse
Affiliation(s)
- Yao Xiong
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, No 238 Jiefang Road, Wuchang District, Wuhan, Hubei, 430060, P. R. China
| | - Yan Rao
- Animal Biosafety Level III Laboratory at the Center for Animal Experiment, Wuhan University School of Medicine, Wuhan, Hubei, 430000, P. R. China
| | - Jiawei Hu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, No 238 Jiefang Road, Wuchang District, Wuhan, Hubei, 430060, P. R. China
| | - Zixuan Luo
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, No 238 Jiefang Road, Wuchang District, Wuhan, Hubei, 430060, P. R. China
| | - Chuang Chen
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, No 238 Jiefang Road, Wuchang District, Wuhan, Hubei, 430060, P. R. China
| |
Collapse
|
7
|
Ristic B, Bosnjak M, Misirkic Marjanovic M, Stevanovic D, Janjetovic K, Harhaji-Trajkovic L. The Exploitation of Lysosomes in Cancer Therapy with Graphene-Based Nanomaterials. Pharmaceutics 2023; 15:1846. [PMID: 37514033 PMCID: PMC10383369 DOI: 10.3390/pharmaceutics15071846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/17/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Graphene-based nanomaterials (GNMs), including graphene, graphene oxide, reduced graphene oxide, and graphene quantum dots, may have direct anticancer activity or be used as nanocarriers for antitumor drugs. GNMs usually enter tumor cells by endocytosis and can accumulate in lysosomes. This accumulation prevents drugs bound to GNMs from reaching their targets, suppressing their anticancer effects. A number of chemical modifications are made to GNMs to facilitate the separation of anticancer drugs from GNMs at low lysosomal pH and to enable the lysosomal escape of drugs. Lysosomal escape may be associated with oxidative stress, permeabilization of the unstable membrane of cancer cell lysosomes, release of lysosomal enzymes into the cytoplasm, and cell death. GNMs can prevent or stimulate tumor cell death by inducing protective autophagy or suppressing autolysosomal degradation, respectively. Furthermore, because GNMs prevent bound fluorescent agents from emitting light, their separation in lysosomes may enable tumor cell identification and therapy monitoring. In this review, we explain how the characteristics of the lysosomal microenvironment and the unique features of tumor cell lysosomes can be exploited for GNM-based cancer therapy.
Collapse
Affiliation(s)
- Biljana Ristic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Dr. Subotića 1, 11000 Belgrade, Serbia
| | - Mihajlo Bosnjak
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Dr. Subotića 1, 11000 Belgrade, Serbia
| | - Maja Misirkic Marjanovic
- Department of Neurophysiology, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Despot Stefan Blvd. 142, 11000 Belgrade, Serbia
| | - Danijela Stevanovic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Dr. Subotića 1, 11000 Belgrade, Serbia
| | - Kristina Janjetovic
- Department of Neurophysiology, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Despot Stefan Blvd. 142, 11000 Belgrade, Serbia
| | - Ljubica Harhaji-Trajkovic
- Department of Neurophysiology, Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Despot Stefan Blvd. 142, 11000 Belgrade, Serbia
| |
Collapse
|
8
|
Zhang Y, Zhang Y, Lei Y, Wu J, Kang Y, Zheng S, Shao L. MDM2 upregulation induces mitophagy deficiency via Mic60 ubiquitination in fetal microglial inflammation and consequently neuronal DNA damage caused by exposure to ZnO-NPs during pregnancy. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131750. [PMID: 37315416 DOI: 10.1016/j.jhazmat.2023.131750] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/15/2023] [Accepted: 05/29/2023] [Indexed: 06/16/2023]
Abstract
During pregnancy, the human body is quite vulnerable to external stimuli. Zinc oxide nanoparticles (ZnO-NPs) are widely used in daily life, and they enter the human body via environmental or biomedical exposure, thus having potential risks. Although accumulating studies have demonstrated the toxic effects of ZnO-NPs, few studies have addressed the effect of prenatal ZnO-NP exposure on fetal brain tissue development. Here, we systematically studied ZnO-NP-induced fetal brain damage and the underlying mechanism. Using in vivo and in vitro assays, we found that ZnO-NPs could cross the underdeveloped bloodbrain barrier and enter fetal brain tissue, where they could be endocytosed by microglia. ZnO-NP exposure impaired mitochondrial function and induced autophagosome overaccumulation by downregulation of Mic60, thus inducing microglial inflammation. Mechanistically, ZnO-NPs increased Mic60 ubiquitination by activating MDM2, resulting in imbalanced mitochondrial homeostasis. Inhibition of Mic60 ubiquitination by MDM2 silencing significantly attenuated the mitochondrial damage induced by ZnO-NPs, thereby preventing autophagosome overaccumulation and reducing ZnO-NP-mediated inflammation and neuronal DNA damage. Our results demonstrate that ZnO-NPs are likely to disrupt mitochondrial homeostasis, inducing abnormal autophagic flux and microglial inflammation and secondary neuronal damage in the fetus. We hope the information provided in our study will improve the understanding of the effects of prenatal ZnO-NP exposure on fetal brain tissue development and draw more attention to the daily use of and therapeutic exposure to ZnO-NPs among pregnant women.
Collapse
Affiliation(s)
- Yanli Zhang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, China
| | - Yulin Zhang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Ye Lei
- Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing 100853 China
| | - Junrong Wu
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Yiyuan Kang
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Shuo Zheng
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China
| | - Longquan Shao
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510260, China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Guangzhou 510515, China.
| |
Collapse
|
9
|
Rodrigues AF, Tavares APM, Simões S, Silva RPFF, Sobrino T, Figueiredo BR, Sales G, Ferreira L. Engineering graphene-based electrodes for optical neural stimulation. NANOSCALE 2023; 15:687-706. [PMID: 36515425 DOI: 10.1039/d2nr05256c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Graphene-based materials (GBMs) have been investigated in recent years with the aim of developing flexible interfaces to address a range of neurological disorders, where electrical stimulation may improve brain function and tissue regeneration. The recent discovery that GBM electrodes can generate an electrical response upon light exposure has inspired the development of non-genetic approaches capable of selectively modulating brain cells without genetic manipulation (i.e., optogenetics). Here, we propose the conjugation of graphene with upconversion nanoparticles (UCNPs), which enable wireless transcranial activation using tissue-penetrating near-infrared (NIR) radiation. Following a design of experiments approach, we first investigated the influence of different host matrices and dopants commonly used to synthesize UCNPs in the electrical response of graphene. Two UCNP formulations achieving optimal enhancement of electrical conductivity upon NIR activation at λ = 780 or 980 nm were identified. These formulations were then covalently attached to graphene nanoplatelets following selective hydroxyl derivatization. The resulting nanocomposites were evaluated in vitro using SH-SY5Y human neuroblastoma cells. NIR activation at λ = 980 nm promoted cell proliferation and downregulated neuronal and glial differentiation markers, suggesting the potential application of GBMs in minimally invasive stimulation of cells for tissue regeneration.
Collapse
Affiliation(s)
- Artur Filipe Rodrigues
- CNC - Center for Neurosciences and Cell Biology, University of Coimbra, 3000-517 Coimbra, Portugal.
| | - Ana P M Tavares
- BioMark@UC, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
| | - Susana Simões
- CNC - Center for Neurosciences and Cell Biology, University of Coimbra, 3000-517 Coimbra, Portugal.
| | - Rui P F F Silva
- Graphenest S.A., Edifício Vouga Park, 3740-070 Paradela do Vouga, Portugal
| | - Tomás Sobrino
- NeuroAging Laboratory, Clinical Neurosciences Research Laboratory, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Bruno R Figueiredo
- Graphenest S.A., Edifício Vouga Park, 3740-070 Paradela do Vouga, Portugal
| | - Goreti Sales
- BioMark@UC, Department of Chemical Engineering, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal
| | - Lino Ferreira
- CNC - Center for Neurosciences and Cell Biology, University of Coimbra, 3000-517 Coimbra, Portugal.
- Faculty of Medicine, Pólo das Ciências da Saúde, Unidade Central, University of Coimbra, 3000-354 Coimbra, Portugal
| |
Collapse
|
10
|
Xie C, Li X, Guo Z, Dong Y, Zhang S, Li A, Ma S, Xu J, Pang Q, Peijnenburg WJGM, Lynch I, Zhang P. Graphene oxide disruption of homeostasis and regeneration processes in freshwater planarian Dugesia japonica via intracellular redox deviation and apoptosis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 249:114431. [PMID: 36521269 DOI: 10.1016/j.ecoenv.2022.114431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/01/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
The aquatic system is a major sink for engineered nanomaterials released into the environment. Here, we assessed the toxicity of graphene oxide (GO) using the freshwater planarian Dugesia japonica, an invertebrate model that has been widely used for studying the effects of toxins on tissue regeneration and neuronal development. GO not only impaired the growth of normal (homeostatic) worms, but also inhibited the regeneration processes of regenerating (amputated) worms, with LC10 values of 9.86 mg/L and 9.32 mg/L for the 48-h acute toxicity test, respectively. High concentration (200 mg/L) of GO killed all the worms after 3 (regenerating) or 4 (homeostasis) days of exposure. Whole-mount in situ hybridization (WISH) and immunofluorescence analyses suggest GO impaired stem cell proliferation and differentiation, and subsequently caused cell apoptosis and oxidative DNA damage during planarian regeneration. Mechanistic analysis suggests that GO disturbed the antioxidative system (enzymatic and non-enzymatic) and energy metabolism in the planarian at both molecular and genetic levels, thus causing reactive oxygen species (ROS) over accumulation and oxidative damage, including oxidative DNA damage, loss of mitochondrial membrane integrity, lack of energy supply for cell differentiation and proliferation leading to retardance of neuron regeneration. The intrinsic oxidative potential of GO contributes to the GO-induced toxicity in planarians. These data suggest that GO in aquatic systems can cause oxidative stress and neurotoxicity in planarians. Overall, regenerated tissues are more sensitive to GO toxicity than homeostatic ones, suggesting that careful handling and appropriate decisions are needed in the application of GO to achieve healing and tissue regeneration.
Collapse
Affiliation(s)
- Changjian Xie
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Xiaowei Li
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Zhiling Guo
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Yuling Dong
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shujing Zhang
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Ao Li
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shan Ma
- Zibo Environment Monitoring Center, Zibo 25500, Shandong, China
| | - Jianing Xu
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Qiuxiang Pang
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, Einsteinweg 2, 2333 CC Leiden, the Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, Bilthoven, the Netherlands
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Peng Zhang
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| |
Collapse
|
11
|
Wei M, Bao G, Li S, Yang Z, Cheng C, Le W. PM2.5 exposure triggers cell death through lysosomal membrane permeabilization and leads to ferroptosis insensitivity via the autophagy dysfunction/p62-KEAP1-NRF2 activation in neuronal cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114333. [PMID: 36446170 DOI: 10.1016/j.ecoenv.2022.114333] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
PM2.5 exposure can be associated with the onset of neurodegenerative diseases, with oxidative stress-induced cellular homeostasis disruption and cell death as one of the main mechanisms. However, the exact cellular and molecular processes are still rarely investigated. Autophagy and KEAP1-NRF2 (Kelch-like ECH-Associating protein 1-nuclear factor erythroid 2 related factor 2) signaling pathway are two main cellular defense systems for maintaining cellular homeostasis and resisting oxidative stress. In this study, we primarily investigated the role of autophagy and KEAP1-NRF2 in regulating cell death resulting from PM2.5 exposure in mouse neuroblastoma N2a cells. Our results showed that PM2.5 exposure disrupted autophagic flux by impairing lysosomal function, including lysosomal alkalinization, increased lysosome membrane permeabilization (LMP), and Cathepsin B release. Furthermore, dysregulated autophagy enhances NRF2 activity in a p62-dependent manner, which then initiates the expression of a series of antioxidant genes and increases cellular insensitivity to ferroptosis. Meanwhile, autophagy dysfunction impairs the intracellular degradation of ferroptosis related proteins such as GPX4 and ferritin. As these proteins accumulate, cells also become less sensitive to ferroptosis. LMP-associated cell death may be the main mechanism of PM2.5-induced N2a cytotoxicity. Our results may provide insights into the mechanisms of PM2.5-induced neurotoxicity and predict effective prevention and treatment strategies.
Collapse
Affiliation(s)
- Min Wei
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian 116021, China.
| | - Guangming Bao
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian 116021, China
| | - Song Li
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian 116021, China
| | - Zhaofei Yang
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian 116021, China
| | - Cheng Cheng
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian 116021, China
| | - Weidong Le
- Liaoning Provincial Key Laboratory for Research on the Pathogenic Mechanisms of Neurological Diseases, the First Affiliated Hospital, Dalian Medical University, Dalian 116021, China; Institute of Neurology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu 610072, China.
| |
Collapse
|
12
|
Direct and Indirect Genotoxicity of Graphene Family Nanomaterials on DNA-A Review. NANOMATERIALS 2021; 11:nano11112889. [PMID: 34835652 PMCID: PMC8625643 DOI: 10.3390/nano11112889] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/17/2021] [Accepted: 10/21/2021] [Indexed: 12/18/2022]
Abstract
Graphene family nanomaterials (GFNs), including graphene, graphene oxide (GO), reduced graphene oxide (rGO), and graphene quantum dots (GQDs), have manifold potential applications, leading to the possibility of their release into environments and the exposure to humans and other organisms. However, the genotoxicity of GFNs on DNA remains largely unknown. In this review, we highlight the interactions between DNA and GFNs and summarize the mechanisms of genotoxicity induced by GFNs. Generally, the genotoxicity can be sub-classified into direct genotoxicity and indirect genotoxicity. The direct genotoxicity (e.g., direct physical nucleus and DNA damage) and indirect genotoxicity mechanisms (e.g., physical destruction, oxidative stress, epigenetic toxicity, and DNA replication) of GFNs were summarized in the manuscript, respectively. Moreover, the influences factors, such as physicochemical properties, exposure dose, and time, on the genotoxicity of GFNs are also briefly discussed. Given the important role of genotoxicity in GFNs exposure risk assessment, future research should be conducted on the following: (1) developing reliable testing methods; (2) elucidating the response mechanisms associated with genotoxicity in depth; and (3) enriching the evaluation database regarding the type of GFNs, applied dosages, and exposure times.
Collapse
|