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Summer M, Hussain T, Ali S, Khan RRM, Muhammad G, Liaqat I. Exploring the underlying modes of organic nanoparticles in diagnosis, prevention, and treatment of cancer: a review from drug delivery to toxicity. INT J POLYM MATER PO 2024:1-17. [DOI: 10.1080/00914037.2024.2375337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 06/28/2024] [Indexed: 08/04/2024]
Affiliation(s)
- Muhammad Summer
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, Pakistan
| | - Tauqeer Hussain
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, Pakistan
| | - Shaukat Ali
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, GC University Lahore, Lahore, Pakistan
| | - Rana Rashad Mahmood Khan
- Department of Chemistry, Government College University Lahore, Faculty of Chemistry and Life Sciences, Lahore, Pakistan
| | - Gulzar Muhammad
- Department of Chemistry, Government College University Lahore, Faculty of Chemistry and Life Sciences, Lahore, Pakistan
| | - Iram Liaqat
- Microbiology Lab, Department of Zoology, Government College University Lahore, Lahore, Pakistan
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Zhang Z, Ma X, Bai J, Xia S, Han Q, Luo Q. Characterizing the lavage and serum cytokine profiles of interstitial pneumonia with autoimmune features and their implications for progressive fibrosis. Rheumatology (Oxford) 2024; 63:1230-1239. [PMID: 37606981 PMCID: PMC11065445 DOI: 10.1093/rheumatology/kead409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/18/2023] [Accepted: 07/26/2023] [Indexed: 08/23/2023] Open
Abstract
OBJECTIVE To explore whether cytokines could be potential biomarkers to predict the occurrence of the progressive fibrosis (PF) phenotype among patients with interstitial pneumonia with autoimmune features (IPAF). METHODS This study prospectively collected 51 IPAF and 15 idiopathic pulmonary fibrosis (IPF) patients who were diagnosed at the First Affiliated Hospital of Guangzhou Medical University from July 2020 to June 2021. All IPAF patients were followed up for 1 year to assess the development of PF phenotype. Paired bronchoalveolar lavage fluid (BALF) and serum samples were collected at enrolment and analysed for differences in 39 cytokines expression. Principal component analysis (PCA) and cluster analysis were conducted to identify a subgroup of IPAF patients at high risk for developing the PF phenotype. Finally, cytokine differences were compared between subgroups to identify potential biomarkers for PF-IPAF occurrence. RESULTS According to the PCA analysis, 81.25% of PF-IPAF patients share overlapped BALF cytokine profiles with IPF. Cluster analysis indicated that IPAF patients in subtype 2 had a higher risk of developing the PF phenotype within 1 year (P = 0.048), characterized by higher levels of CCL2 and CXCL12, and lower lymphocyte proportion (LYM%) in BALF. Elevated levels of BALF CCL2 (>299.16 pg/ml) or CXCL12 (>660.115 pg/ml) were associated with a significantly higher risk of developing PF phenotype within the 1-year follow-up period (P = 0.009, 0.001, respectively). CONCLUSION PF-IPAF phenotype exhibits similar inflammatory cytokine profiles to IPF. Cytokine CCL2 and CXCL12, and LYM% in BALF serve as potential biomarkers for predicting the PF phenotype in IPAF patients. CLINICAL TRIAL REGISTRATION Register: Qian Han, Website: http://www.chictr.org.cn/showproj.aspx?proj=61619, Registration number: ChiCTR2000040998.
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Affiliation(s)
- Ziyi Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiaoqian Ma
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Junye Bai
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Shu Xia
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qian Han
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qun Luo
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, China
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3
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Ding K, Zhu Y, Yan L, Zhu L, Zhang TT, Zhang R, Li Q, Xie B, Ding L, Shang L, Wang Y, Xu P, Zhu T, Chen C, Zhu Y. Multiwalled Carbon Nanotubes-Reprogrammed Macrophages Facilitate Breast Cancer Metastasis via NBR2/TBX1 Axis. ACS NANO 2024; 18:11103-11119. [PMID: 38623806 DOI: 10.1021/acsnano.3c11651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
In recent years, carbon nanotubes have emerged as a widely used nanomaterial, but their human exposure has become a significant concern. In our former study, we reported that pulmonary exposure of multiwalled carbon nanotubes (MWCNTs) promoted tumor metastasis of breast cancer; macrophages were key effectors of MWCNTs and contributed to the metastasis-promoting procedure in breast cancer, but the underlying molecular mechanisms remain to be explored. As a follow-up study, we herein demonstrated that MWCNT exposure in breast cancer cells and macrophage coculture systems promoted metastasis of breast cancer cells both in vitro and in vivo; macrophages were skewed into M2 polarization by MWCNT exposure. LncRNA NBR2 was screened out to be significantly decreased in MWCNTs-stimulated macrophages through RNA-seq; depletion of NBR2 led to the acquisition of M2 phenotypes in macrophages by activating multiple M2-related pathways. Specifically, NBR2 was found to positively regulate the downstream gene TBX1 through H3k27ac activation. TBX1 silence rescued NBR2-induced impairment of M2 polarization in IL-4 & IL-13-stimulated macrophages. Moreover, NBR2 overexpression mitigated the enhancing effects of MWCNT-exposed macrophages on breast cancer metastasis. This study uncovered the molecular mechanisms underlying breast cancer metastasis induced by MWCNT exposure.
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Affiliation(s)
- Keshuo Ding
- Department of Pathology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Yaling Zhu
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
- Laboratory Animal Research Center, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Lang Yan
- Department of Health Toxicology, Faculty of Naval Medicine, Naval Medical University, Shanghai 200433, China
| | - Linyan Zhu
- Department of Pathology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Tian-Tian Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Rumeng Zhang
- Department of Pathology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Qiushuang Li
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Bin Xie
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Lin Ding
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Limeng Shang
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Yi Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Panpan Xu
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Tao Zhu
- Department of Oncology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences (CAS), Beijing 100190, China
| | - Yong Zhu
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
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Danielsen PH, Poulsen SS, Knudsen KB, Clausen PA, Jensen KA, Wallin H, Vogel U. Physicochemical properties of 26 carbon nanotubes as predictors for pulmonary inflammation and acute phase response in mice following intratracheal lung exposure. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 107:104413. [PMID: 38485102 DOI: 10.1016/j.etap.2024.104413] [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: 12/07/2023] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/24/2024]
Abstract
Carbon nanotubes (CNTs) vary in physicochemical properties which makes risk assessment challenging. Mice were pulmonary exposed to 26 well-characterized CNTs using the same experimental design and followed for one day, 28 days or 3 months. This resulted in a unique dataset, which was used to identify physicochemical predictors of pulmonary inflammation and systemic acute phase response. MWCNT diameter and SWCNT specific surface area were predictive of lower and higher neutrophil influx, respectively. Manganese and iron were shown to be predictive of higher neutrophil influx at day 1 post-exposure, whereas nickel content interestingly was predictive of lower neutrophil influx at all three time points and of lowered acute phase response at day 1 and 3 months post-exposure. It was not possible to separate effects of properties such as specific surface area and length in the multiple regression analyses due to co-variation.
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Affiliation(s)
- Pernille Høgh Danielsen
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark
| | - Sarah Søs Poulsen
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark
| | - Kristina Bram Knudsen
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark
| | - Per Axel Clausen
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark
| | - Keld Alstrup Jensen
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark
| | - Håkan Wallin
- National Institute of Occupational Health, Pb 5330 Majorstuen, Oslo 0304, Norway; Department of Public Health, Section of Environmental Health, University of Copenhagen, Øster Farimagsgade 5A, Copenhagen K DK-1014, Denmark
| | - Ulla Vogel
- National Research Centre for the Working Environment (NFA), 105 Lersø Parkallé, Copenhagen Ø, Denmark; DTU Food, Technical University of Denmark (DTU), Anker Engelunds Vej 1, Lyngby DK-2800 Kgs, Denmark.
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Rele S, Thakur CK, Khan F, Baral B, Saini V, Karthikeyan C, Moorthy NSHN, Jha HC. Curcumin coating: a novel solution to mitigate inherent carbon nanotube toxicity. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2024; 35:24. [PMID: 38526738 DOI: 10.1007/s10856-024-06789-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 03/04/2024] [Indexed: 03/27/2024]
Abstract
Multi-walled Carbon Nanotubes (MWCNTs) are inert structures with high aspect ratios that are widely used as vehicles for targeted drug delivery in cancer and many other diseases. They are largely non-toxic in nature however, when cells are exposed to these nanotubes for prolonged durations or at high concentrations, they show certain adverse effects. These include cytotoxicity, inflammation, generation of oxidative stress, and genotoxicity among others. To combat such adverse effects, various moieties can be attached to the surface of these nanotubes. Curcumin is a known anti-inflammatory, antioxidant and cytoprotective compound derived from a medicinal plant called Curcuma longa. In this study, we have synthesized and characterized Curcumin coated-lysine functionalized MWCNTs and further evaluated the cytoprotective, anti-inflammatory, antioxidant and antiapoptotic effect of Curcumin coating on the surface of MWCNTs. The results show a significant decrease in the level of inflammatory molecules like IL-6, IL-8, IL-1β, TNFα and NFκB in cells exposed to Curcumin-coated MWCNTs as compared to the uncoated ones at both transcript and protein levels. Further, compared to the uncoated samples, there is a reduction in ROS production and upregulation of antioxidant enzyme-Catalase in the cells treated with Curcumin-coated MWCNTs. Curcumin coating also helped in recovery of mitochondrial membrane potential in the cells exposed to MWCNTs. Lastly, cells exposed to Curcumin-coated MWCNTs showed reduced cell death as compared to the ones exposed to uncoated MWCNTs. Our findings suggest that coating of Curcumin on the surface of MWCNTs reduces its ability to cause inflammation, oxidative stress, and cell death.
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Affiliation(s)
- Samiksha Rele
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, MP, 453552, India
| | - Chanchal Kiran Thakur
- Cancept Therapeutics Laboratory, Department of Pharmacy, Indira Gandhi National Tribal University, Lalpur, Amarkantak, MP, 484887, India
| | - Fatima Khan
- Cancept Therapeutics Laboratory, Department of Pharmacy, Indira Gandhi National Tribal University, Lalpur, Amarkantak, MP, 484887, India
| | - Budhadev Baral
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, MP, 453552, India
| | - Vaishali Saini
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, MP, 453552, India
| | - Chandrabose Karthikeyan
- Cancept Therapeutics Laboratory, Department of Pharmacy, Indira Gandhi National Tribal University, Lalpur, Amarkantak, MP, 484887, India
| | - N S Hari Narayana Moorthy
- Cancept Therapeutics Laboratory, Department of Pharmacy, Indira Gandhi National Tribal University, Lalpur, Amarkantak, MP, 484887, India.
| | - Hem Chandra Jha
- Infection Bioengineering Group, Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, MP, 453552, India.
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Thai SF, Jones CP, Robinette BL, Ren H, Vallanat B, Fisher A, Kitchin KT. Effects of multi-walled carbon nanotubes on gene and microRNA expression in human hepatocarcinoma HepG2 cells. MATERIALS EXPRESS : AN INTERNATIONAL JOURNAL ON MULTIDISCIPLINARY MATERIALS RESEARCH 2024; 14:403-415. [PMID: 39022637 PMCID: PMC11251416 DOI: 10.1166/mex.2024.2641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The usage of multi-walled carbon nanotubes (MWCNT) has increased exponentially in the past years, but, potential toxicity mechanisms are not clear. We studied the transcriptomic alterations induced by one multi-walled carbon nanotube (MWCNT) and its -OH and -COOH functionalized derivatives in human HepG2 cells. We showed that all three MWCNT treatments induced alterations in stress-related signaling pathways, inflammation-related signaling pathways, cholesterol synthesis pathways, proliferation-related pathways, senescence-related pathways and cancer-related pathways. In stress-related pathways, the acute phase response was induced in all three MWCNTs and all doses treated and ranked high. Other stress-related pathways were also related to the oxidative-induced signaling pathways, such as NRF-2 mediated oxidative stress response, hepatic fibrosis/Stella cell activation, iNOS signaling, and Hif1α signaling. Many inflammation-related pathways were altered, such as IL-8, IL-6, TNFR1, TNFR2, and NF-κB signaling pathways. These results were consistent with our previous results with exposures to the same three multi-walled carbon nanotubes in human lung BEAS-2B and also with results in mice and rats. From the microRNA target filter analysis, TXNIP & miR-128-3p interaction was present in all three MWCNT treatments, and maybe important for the induction of oxidative stress. CXCL-8 & miR-146-5p and Wee1 & miR-128-3p were only present in the cells treated with the parent and the OH-functionalized MWCNTs. These mRNA-miRNA interactions were involved in oxidative stress, inflammation, cell cycle, cholesterol biosynthesis and cancer related pathways. Target filter analysis also showed altered liver hyperplasia/hyperproliferation and hepatic cancer pathways. In short, target filter analysis complemented the transcriptomic analysis and pointed to specific gene/microRNA interactions that can help inform mechanism of action. Moreover, our study showed that the signaling pathways altered in HepG2 cells correlated well with the toxicity and carcinogenicity observed in vivo, indicating that HepG2 may be a good in vitro predictive model for MWCNT toxicity studies.
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Affiliation(s)
- Sheau-Fung Thai
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Carlton P. Jones
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Brian L. Robinette
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | | | - Beena Vallanat
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 TW Alexander Dr., Durham NC 27709 USA
| | - Anna Fisher
- Center for Public Health and Environmental Assessment, US Environmental Production Agency, 109 TW Alexander Dr., Durham NC 27709
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7
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Rebolledo LP, Ke W, Cedrone E, Wang J, Majithia K, Johnson MB, Dokholyan NV, Dobrovolskaia MA, Afonin KA. Immunostimulation of Fibrous Nucleic Acid Nanoparticles Can be Modulated through Aptamer-Based Functional Moieties: Unveiling the Structure-Activity Relationship and Mechanistic Insights. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8430-8441. [PMID: 38344840 PMCID: PMC10895590 DOI: 10.1021/acsami.3c17779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/23/2024] [Accepted: 01/30/2024] [Indexed: 02/23/2024]
Abstract
Fibrous nanomaterials containing silica, titanium oxide, and carbon nanotubes are notoriously known for their undesirable inflammatory responses and associated toxicities that have been extensively studied in the environmental and occupational toxicology fields. Biopersistance and inflammation of "hard" nanofibers prevent their broader biomedical applications. To utilize the structural benefits of fibrous nanomaterials for functionalization with moieties of therapeutic significance while preventing undesirable immune responses, researchers employ natural biopolymers─RNA and DNA─to design "soft" and biodegradable nanomaterials with controlled immunorecognition. Nucleic acid nanofibers have been shown to be safe and efficacious in applications that do not require their delivery into the cells such as the regulation of blood coagulation. Previous studies demonstrated that unlike traditional therapeutic nucleic acids (e.g., CpG DNA oligonucleotides) nucleic acid nanoparticles (NANPs), when used without a carrier, are not internalized by the immune cells and, as such, do not induce undesirable cytokine responses. In contrast, intracellular delivery of NANPs results in cytokine responses that are dependent on the physicochemical properties of these nanomaterials. However, the structure-activity relationship of innate immune responses to intracellularly delivered fibrous NANPs is poorly understood. Herein, we employ the intracellular delivery of model RNA/DNA nanofibers functionalized with G-quadruplex-based DNA aptamers to investigate how their structural properties influence cytokine responses. We demonstrate that nanofibers' scaffolds delivered to the immune cells using lipofectamine induce interferon response via the cGAS-STING signaling pathway activation and that DNA aptamers incorporation shields the fibers from recognition by cGAS and results in a lower interferon response. This structure-activity relationship study expands the current knowledge base to inform future practical applications of intracellularly delivered NANPs as vaccine adjuvants and immunotherapies.
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Affiliation(s)
- Laura P Rebolledo
- Nanoscale Science Program, Department of Chemistry, University of North Carolina Charlotte, Charlotte, North Carolina 28223, United States
| | - Weina Ke
- Nanoscale Science Program, Department of Chemistry, University of North Carolina Charlotte, Charlotte, North Carolina 28223, United States
| | - Edward Cedrone
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research Sponsored by the National Cancer Institute, Frederick, Maryland 21701, United States
| | - Jian Wang
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033, United States
| | - Krishna Majithia
- Department of Biological Sciences, University of North Carolina Charlotte, Charlotte, North Carolina 28223, United States
| | - M Brittany Johnson
- Department of Biological Sciences, University of North Carolina Charlotte, Charlotte, North Carolina 28223, United States
| | - Nikolay V Dokholyan
- Department of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania 17033, United States
- Department of Biochemistry & Molecular Biology, Department of Biochemistry & Molecular Biology, Penn State College of Medicine, Hershey, Pennsylvania 17033, United States
| | - Marina A Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research Sponsored by the National Cancer Institute, Frederick, Maryland 21701, United States
| | - Kirill A Afonin
- Nanoscale Science Program, Department of Chemistry, University of North Carolina Charlotte, Charlotte, North Carolina 28223, United States
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Reamon-Buettner SM, Rittinghausen S, Klauke A, Hiemisch A, Ziemann C. Malignant peritoneal mesotheliomas of rats induced by multiwalled carbon nanotubes and amosite asbestos: transcriptome and epigenetic profiles. Part Fibre Toxicol 2024; 21:3. [PMID: 38297314 PMCID: PMC10829475 DOI: 10.1186/s12989-024-00565-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 01/25/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Malignant mesothelioma is an aggressive cancer that often originates in the pleural and peritoneal mesothelium. Exposure to asbestos is a frequent cause. However, studies in rodents have shown that certain multiwalled carbon nanotubes (MWCNTs) can also induce malignant mesothelioma. The exact mechanisms are still unclear. To gain further insights into molecular pathways leading to carcinogenesis, we analyzed tumors in Wistar rats induced by intraperitoneal application of MWCNTs and amosite asbestos. Using transcriptomic and epigenetic approaches, we compared the tumors by inducer (MWCNTs or amosite asbestos) or by tumor type (sarcomatoid, epithelioid, or biphasic). RESULTS Genome-wide transcriptome datasets, whether grouped by inducer or tumor type, showed a high number of significant differentially expressed genes (DEGs) relative to control peritoneal tissues. Bioinformatic evaluations using Ingenuity Pathway Analysis (IPA) revealed that while the transcriptome datasets shared commonalities, they also showed differences in DEGs, regulated canonical pathways, and affected molecular functions. In all datasets, among highly- scoring predicted canonical pathways were Phagosome Formation, IL8 Signaling, Integrin Signaling, RAC Signaling, and TREM1 Signaling. Top-scoring activated molecular functions included cell movement, invasion of cells, migration of cells, cell transformation, and metastasis. Notably, we found many genes associated with malignant mesothelioma in humans, which showed similar expression changes in the rat tumor transcriptome datasets. Furthermore, RT-qPCR revealed downregulation of Hrasls, Nr4a1, Fgfr4, and Ret or upregulation of Rnd3 and Gadd45b in all or most of the 36 tumors analyzed. Bisulfite sequencing of Hrasls, Nr4a1, Fgfr4, and Ret revealed heterogeneity in DNA methylation of promoter regions. However, higher methylation percentages were observed in some tumors compared to control tissues. Lastly, global 5mC DNA, m6A RNA and 5mC RNA methylation levels were also higher in tumors than in control tissues. CONCLUSIONS Our findings may help better understand how exposure to MWCNTs can lead to carcinogenesis. This information is valuable for risk assessment and in the development of safe-by-design strategies.
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Affiliation(s)
- Stella Marie Reamon-Buettner
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Strasse 1, 30625, Hannover, Germany.
| | - Susanne Rittinghausen
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Strasse 1, 30625, Hannover, Germany
| | - Annika Klauke
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Strasse 1, 30625, Hannover, Germany
| | - Andreas Hiemisch
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Strasse 1, 30625, Hannover, Germany
| | - Christina Ziemann
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Nikolai-Fuchs-Strasse 1, 30625, Hannover, Germany
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9
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Ma Q, Lim CS. Molecular Activation of NLRP3 Inflammasome by Particles and Crystals: A Continuing Challenge of Immunology and Toxicology. Annu Rev Pharmacol Toxicol 2024; 64:417-433. [PMID: 37708431 PMCID: PMC10842595 DOI: 10.1146/annurev-pharmtox-031023-125300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Particles and crystals constitute a unique class of toxic agents that humans are constantly exposed to both endogenously and from the environment. Deposition of particulates in the body is associated with a range of diseases and toxicity. The mechanism by which particulates cause disease remains poorly understood due to the lack of mechanistic insights into particle-biological interactions. Recent research has revealed that many particles and crystals activate the NLRP3 inflammasome, an intracellular pattern-recognition receptor. Activated NLRP3 forms a supramolecular complex with an adaptor protein to activate caspase 1, which in turn activates IL-1β and IL-18 to instigate inflammation. Genetic ablation and pharmacological inhibition of the NLRP3 inflammasome dampen inflammatory responses to particulates. Nonetheless, how particulates activate NLRP3 remains a challenging question. From this perspective, we discuss our current understanding of and progress on revealing the function and mode of action of the NLRP3 inflammasome in mediating adaptive and pathologic responses to particulates in health and disease.
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Affiliation(s)
- Qiang Ma
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia, USA;
| | - Chol Seung Lim
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia, USA;
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10
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Fatkhutdinova LM, Gabidinova GF, Daminova AG, Dimiev AM, Khamidullin TL, Valeeva EV, Cokou AEE, Validov SZ, Timerbulatova GA. Mechanisms related to carbon nanotubes genotoxicity in human cell lines of respiratory origin. Toxicol Appl Pharmacol 2024; 482:116784. [PMID: 38070752 DOI: 10.1016/j.taap.2023.116784] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/22/2023]
Abstract
Potential genotoxicity and carcinogenicity of carbon nanotubes (CNT), as well as the underlying mechanisms, remains a pressing topic. The study aimed to evaluate and compare the genotoxic effect and mechanisms of DNA damage under exposure to different types of CNT. Immortalized human cell lines of respiratory origin BEAS-2B, A549, MRC5-SV40 were exposed to three types of CNT: MWCNT Taunit-M, pristine and purified SWCNT TUBALL™ at concentrations in the range of 0.0006-200 μg/ml. Data on the CNT content in the workplace air were used to calculate the lower concentration limit. The genotoxic potential of CNTs was investigated at non-cytotoxic concentrations using a DNA comet assay. We explored reactive oxygen species (ROS) formation, direct genetic material damage, and expression of a profibrotic factor TGFB1 as mechanisms related to genotoxicity upon CNT exposure. An increase in the number of unstable DNA regions was observed at a subtoxic concentration of CNT (20 μg/ml), with no genotoxic effects at concentrations corresponding to industrial exposures being found. While the three test articles of CNTs exhibited comparable genotoxic potential, their mechanisms appeared to differ. MWCNTs were found to penetrate the nucleus of respiratory cells, potentially interacting directly with genetic material, as well as to enhance ROS production and TGFB1 gene expression. For A549 and MRC5-SV40, genotoxicity depended mainly on MWCNT concentration, while for BEAS-2B - on ROS production. Mechanisms of SWCNT genotoxicity were not so obvious. Oxidative stress and increased expression of profibrotic factors could not fully explain DNA damage under SWCNT exposure, and other mechanisms might be involved.
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Affiliation(s)
| | | | | | - Ayrat M Dimiev
- Kazan Federal University, Laboratory for Advanced Carbon Nanomaterials, Kazan 420008, Russian Federation
| | - Timur L Khamidullin
- Kazan Federal University, Laboratory for Advanced Carbon Nanomaterials, Kazan 420008, Russian Federation
| | - Elena V Valeeva
- Kazan State Medical University, Kazan 420012, Russian Federation
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11
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Braakhuis HM, Gremmer ER, Bannuscher A, Drasler B, Keshavan S, Rothen-Rutishauser B, Birk B, Verlohner A, Landsiedel R, Meldrum K, Doak SH, Clift MJD, Erdem JS, Foss OAH, Zienolddiny-Narui S, Serchi T, Moschini E, Weber P, Burla S, Kumar P, Schmid O, Zwart E, Vermeulen JP, Vandebriel RJ. Transferability and reproducibility of exposed air-liquid interface co-culture lung models. NANOIMPACT 2023; 31:100466. [PMID: 37209722 DOI: 10.1016/j.impact.2023.100466] [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: 12/21/2022] [Revised: 04/03/2023] [Accepted: 05/03/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND The establishment of reliable and robust in vitro models for hazard assessment, a prerequisite for moving away from animal testing, requires the evaluation of model transferability and reproducibility. Lung models that can be exposed via the air, by means of an air-liquid interface (ALI) are promising in vitro models for evaluating the safety of nanomaterials (NMs) after inhalation exposure. We performed an inter-laboratory comparison study to evaluate the transferability and reproducibility of a lung model consisting of the human bronchial cell line Calu-3 as a monoculture and, to increase the physiologic relevance of the model, also as a co-culture with macrophages (either derived from the THP-1 monocyte cell line or from human blood monocytes). The lung model was exposed to NMs using the VITROCELL® Cloud12 system at physiologically relevant dose levels. RESULTS Overall, the results of the 7 participating laboratories are quite similar. After exposing Calu-3 alone and Calu-3 co-cultures with macrophages, no effects of lipopolysaccharide (LPS), quartz (DQ12) or titanium dioxide (TiO2) NM-105 particles on the cell viability and barrier integrity were detected. LPS exposure induced moderate cytokine release in the Calu-3 monoculture, albeit not statistically significant in most labs. In the co-culture models, most laboratories showed that LPS can significantly induce cytokine release (IL-6, IL-8 and TNF-α). The exposure to quartz and TiO2 particles did not induce a statistically significant increase in cytokine release in both cell models probably due to our relatively low deposited doses, which were inspired by in vivo dose levels. The intra- and inter-laboratory comparison study indicated acceptable interlaboratory variation for cell viability/toxicity (WST-1, LDH) and transepithelial electrical resistance, and relatively high inter-laboratory variation for cytokine production. CONCLUSION The transferability and reproducibility of a lung co-culture model and its exposure to aerosolized particles at the ALI were evaluated and recommendations were provided for performing inter-laboratory comparison studies. Although the results are promising, optimizations of the lung model (including more sensitive read-outs) and/or selection of higher deposited doses are needed to enhance its predictive value before it may be taken further towards a possible OECD guideline.
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Affiliation(s)
- Hedwig M Braakhuis
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Eric R Gremmer
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Anne Bannuscher
- Adolphe Merkle Institute (AMI), University of Fribourg, Switzerland
| | - Barbara Drasler
- Adolphe Merkle Institute (AMI), University of Fribourg, Switzerland
| | - Sandeep Keshavan
- Adolphe Merkle Institute (AMI), University of Fribourg, Switzerland
| | | | | | | | - Robert Landsiedel
- BASF SE, Ludwigshafen, Germany; Free University of Berlin, Pharmacy - Pharmacology and Toxicology, Berlin, Germany
| | | | | | | | | | - Oda A H Foss
- National Institute of Occupational Health (STAMI), Norway
| | | | - Tommaso Serchi
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Elisa Moschini
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Pamina Weber
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Sabina Burla
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Pramod Kumar
- Comprehensive Pneumology Center (CPC-M) with the CPC-M bioArchive, Helmholtz Center Munich - Member of the German Center for Lung Research (DZL), Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Otmar Schmid
- Comprehensive Pneumology Center (CPC-M) with the CPC-M bioArchive, Helmholtz Center Munich - Member of the German Center for Lung Research (DZL), Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Edwin Zwart
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Jolanda P Vermeulen
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Rob J Vandebriel
- National Institute for Public Health & the Environment (RIVM), the Netherlands.
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12
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Greene MK, Scott CJ. Carbon nanotubes activate inflammatory signalling through binding to Siglec-14. NATURE NANOTECHNOLOGY 2023:10.1038/s41565-023-01420-4. [PMID: 37316701 DOI: 10.1038/s41565-023-01420-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Michelle K Greene
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Aviceda Glycotech, Belfast, UK
| | - Christopher J Scott
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK.
- Aviceda Glycotech, Belfast, UK.
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13
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Lim CS, Veltri B, Kashon M, Porter DW, Ma Q. Multi-walled carbon nanotubes induce arachidonate 5-lipoxygenase expression and enhance the polarization and function of M1 macrophages in vitro. Nanotoxicology 2023; 17:249-269. [PMID: 37115655 DOI: 10.1080/17435390.2023.2204161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Fibrogenic carbon nanotubes (CNTs) induce the polarization of M1 and M2 macrophages in mouse lungs. Polarization of the macrophages regulates the production of proinflammatory and pro-resolving lipid mediators (LMs) to mediate acute inflammation and its resolution in a time-dependent manner. Here we examined the molecular mechanism by which multi-walled CNTs (MWCNTs, Mitsui-7) induce M1 polarization in vitro. Treatment of murine macrophages (J774A.1) with Mitsui-7 MWCNTs increased the expression of Alox5 mRNA and protein in a concentration- and time-dependent manner. The MWCNTs induced the expression of CD68 and that induction persisted for up to 3 days post-exposure. The expression and activity of inducible nitric oxide synthase, an intracellular marker of M1, were increased by MWCNTs. Consistent with M1 polarization, the MWCNTs induced the production and secretion of proinflammatory cytokines tumor necrosis factor-α and interleukin-1β, and proinflammatory LMs leukotriene B4 (LTB4) and prostaglandin E2 (PGE2). The cell-free media from MWCNT-polarized macrophages induced the migration of neutrophilic cells (differentiated from HL-60), which was blocked by Acebilustat, a specific leukotriene A4 hydrolase inhibitor, or LY239111, an LTB4 receptor antagonist, but not NS-398, a cyclooxygenase 2 inhibitor, revealing LTB4 as a major mediator of neutrophil chemotaxis from MWCNT-polarized macrophages. Knockdown of Alox5 using specific small hairpin-RNA suppressed MWCNT-induced M1 polarization, LTB4 secretion, and migration of neutrophils. Taken together, these findings demonstrate the polarization of M1 macrophages by Mitsui-7 MWCNTs in vitro and that induction of Alox5 is an important mechanism by which the MWCNTs promote proinflammatory responses by boosting M1 polarization and production of proinflammatory LMs.
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Affiliation(s)
- Chol Seung Lim
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
| | - Brandon Veltri
- Department of Microbiology, Immunology, and Cell Biology, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA
| | - Michael Kashon
- Bioanalytics Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
| | - Dale W Porter
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
| | - Qiang Ma
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
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14
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Hosseini SM, Mohammadnejad J, Najafi-Taher R, Zadeh ZB, Tanhaei M, Ramakrishna S. Multifunctional Carbon-Based Nanoparticles: Theranostic Applications in Cancer Therapy and Diagnosis. ACS APPLIED BIO MATERIALS 2023; 6:1323-1338. [PMID: 36921253 DOI: 10.1021/acsabm.2c01000] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Cancer diagnosis and treatment are the most critical challenges in modern medicine. Conventional cancer treatments no longer meet the needs of the health field due to the high rate of mutations and epigenetic factors that have caused drug resistance in tumor cells. Hence, the search for unique methods and factors is quickly expanding. The development of nanotechnology in medicine and the search for a system to integrate treatment and diagnosis to achieve an effective approach to overcome the known limitations of conventional treatment methods have led to the emergence of theranostic nanoparticles and nanosystems based on these nanoparticles. An influential group of these nanoparticles is carbon-based theranostic nanoparticles. These nanoparticles have received significant attention due to their unique properties, such as electrical conductivity, high strength, excellent surface chemistry, and wide range of structural diversity (graphene, nanodiamond, carbon quantum dots, fullerenes, carbon nanotubes, and carbon nanohorns). These nanoparticles were widely used in various fields, such as tissue engineering, drug delivery, imaging, and biosensors. In this review, we discuss in detail the recent features and advances in carbon-based theranostic nanoparticles and the advanced and diverse strategies used to treat diseases with these nanoparticles.
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Affiliation(s)
- Seyed Mohammad Hosseini
- Department of Life Science Engineering Faculty of Modern Science and Technology, Nano Biotechnology Group, University of Tehran, Tehran 1439957131, Iran
| | - Javad Mohammadnejad
- Department of Life Science Engineering Faculty of Modern Science and Technology, Nano Biotechnology Group, University of Tehran, Tehran 1439957131, Iran
| | - Roqya Najafi-Taher
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 11114115, Iran
| | - Zahra Beiram Zadeh
- Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore 117576, Singapore
| | - Mohammad Tanhaei
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore
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15
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Janosikova M, Nakladalova M, Stepanek L. Current causes of mesothelioma: how has the asbestos ban changed the perspective? Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2023. [PMID: 36883200 DOI: 10.5507/bp.2023.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
The association of mesothelioma, a lethal lung disease, with asbestos has led to an absolute ban on asbestos in at least 55 countries worldwide. The purpose of this paper is to review residual exposure to asbestos as well as other emerging causes of mesothelioma outside asbestos. The review provides detailed description of asbestos minerals, their geographical locations, mesothelioma in these areas, as well as contemporary possible sources of asbestos exposure. Second, we examine other emerging causes of mesothelioma including: ionizing radiation as the second most important risk factor after asbestos, particularly relevant to patients undergoing radiotherapy, third, carbon nanotubes which are under investigation and fourth, Simian virus 40. In the case of asbestos per se, the greatest risk is from occupational exposure during mining and subsequent processing. Of the non-occupational exposures, environmental exposure is most serious, followed by exposure from indoor asbestos minerals and secondary familial exposure. Overall, asbestos is still a major risk factor, but alternative causes should not be neglected, especially in young people, in women and those with a history of radiotherapy or living in high-risk locations.
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Affiliation(s)
- Magdalena Janosikova
- Department of Occupational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, I. P. Pavlova 185/6, 779 00 Olomouc, Czech Republic
| | - Marie Nakladalova
- Department of Occupational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, I. P. Pavlova 185/6, 779 00 Olomouc, Czech Republic
| | - Ladislav Stepanek
- Department of Occupational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, I. P. Pavlova 185/6, 779 00 Olomouc, Czech Republic
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16
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Domenech J, Annangi B, Marcos R, Hernández A, Catalán J. Insights into the potential carcinogenicity of micro- and nano-plastics. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2023; 791:108453. [PMID: 36739075 DOI: 10.1016/j.mrrev.2023.108453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/14/2022] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
There is a growing concern regarding the potential health effects that continuous exposure to environmental micro- and nano-plastics (MNPLs) may cause on humans. Due to their persistent nature, MNPLs may accumulate in different organs and tissues and may induce in the long term the development of cancer. The present study aimed to review the existing literature on the carcinogenic potential of MNPLs. As studies directly assessing carcinogenicity were expected to be scarce, studies dealing with indirect outcomes associated with the carcinogenic process were considered in the literature search. Of the 126 studies screened, 19 satisfied the inclusion criteria. Besides, 7 additional cross-referenced articles, identified through a careful reading of the previously selected papers, also met the inclusion criteria and, consequently, were included in the review. Most of the selected studies were performed using in vitro models whereas about 40% of the studies were done in rodents, although none of them included a 2-year carcinogenicity assay. Most of the reviewed studies pointed out the potential of MNPLs to induce inflammation and genotoxicity, the latter being recognized as a strong predictor of carcinogenicity. These, along with other important findings such as the MNPLs' ability to accumulate into cells and tissues, or their capacity to induce fibrosis, may suggest an association between MNPLs exposures and the carcinogenic potential. Nevertheless, the limited number of available studies precludes reaching clear conclusions. Therefore, this review also provides several recommendations to cover the current knowledge gaps and address the future evaluation of the MNPLs' carcinogenic risk.
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Affiliation(s)
- Josefa Domenech
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, Helsinki 00032, Finland
| | - Balasubramanyam Annangi
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Ricard Marcos
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Alba Hernández
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Spain.
| | - Julia Catalán
- Finnish Institute of Occupational Health, Box 40, Työterveyslaitos, Helsinki 00032, Finland; Department of Anatomy, Embryology and Genetics, University of Zaragoza, 50013 Zaragoza, Spain.
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17
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Friesen A, Fritsch-Decker S, Mülhopt S, Quarz C, Mahl J, Baumann W, Hauser M, Wexler M, Schlager C, Gutmann B, Krebs T, Goßmann AK, Weis F, Hufnagel M, Stapf D, Hartwig A, Weiss C. Comparing the Toxicological Responses of Pulmonary Air-Liquid Interface Models upon Exposure to Differentially Treated Carbon Fibers. Int J Mol Sci 2023; 24:ijms24031927. [PMID: 36768249 PMCID: PMC9915385 DOI: 10.3390/ijms24031927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/20/2023] Open
Abstract
In recent years, the use of carbon fibers (CFs) in various sectors of industry has been increasing. Despite the similarity of CF degradation products to other toxicologically relevant materials such as asbestos fibers and carbon nanotubes, a detailed toxicological evaluation of this class of material has yet to be performed. In this work, we exposed advanced air-liquid interface cell culture models of the human lung to CF. To simulate different stresses applied to CF throughout their life cycle, they were either mechanically (mCF) or thermo-mechanically pre-treated (tmCF). Different aspects of inhalation toxicity as well as their possible time-dependency were monitored. mCFs were found to induce a moderate inflammatory response, whereas tmCF elicited stronger inflammatory as well as apoptotic effects. Furthermore, thermal treatment changed the surface properties of the CF resulting in a presumed adhesion of the cells to the fiber fragments and subsequent cell loss. Triple-cultures encompassing epithelial, macrophage, and fibroblast cells stood out with an exceptionally high inflammatory response. Only a weak genotoxic effect was detected in the form of DNA strand breaks in mono- and co-cultures, with triple-cultures presenting a possible secondary genotoxicity. This work establishes CF fragments as a potentially harmful material and emphasizes the necessity of further toxicological assessment of existing and upcoming advanced CF-containing materials.
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Affiliation(s)
- Alexandra Friesen
- Karlsruhe Institute of Technology (KIT), Institute of Applied Biosciences, Department of Food Chemistry and Toxicology, 76131 Karlsruhe, Germany
| | - Susanne Fritsch-Decker
- Karlsruhe Institute of Technology (KIT), Institute of Biological and Chemical Systems, Biological Information Processing, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sonja Mülhopt
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry, 76344 Eggenstein-Leopoldshafen, Germany
| | - Caroline Quarz
- Karlsruhe Institute of Technology (KIT), Institute of Applied Biosciences, Department of Food Chemistry and Toxicology, 76131 Karlsruhe, Germany
| | - Jonathan Mahl
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry, 76344 Eggenstein-Leopoldshafen, Germany
| | - Werner Baumann
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manuela Hauser
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manuela Wexler
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry, 76344 Eggenstein-Leopoldshafen, Germany
| | | | | | - Tobias Krebs
- Vitrocell Systems GmbH, 79183 Waldkirch, Germany
| | | | | | - Matthias Hufnagel
- Karlsruhe Institute of Technology (KIT), Institute of Applied Biosciences, Department of Food Chemistry and Toxicology, 76131 Karlsruhe, Germany
| | - Dieter Stapf
- Karlsruhe Institute of Technology (KIT), Institute for Technical Chemistry, 76344 Eggenstein-Leopoldshafen, Germany
| | - Andrea Hartwig
- Karlsruhe Institute of Technology (KIT), Institute of Applied Biosciences, Department of Food Chemistry and Toxicology, 76131 Karlsruhe, Germany
- Correspondence: (A.H.); (C.W.)
| | - Carsten Weiss
- Karlsruhe Institute of Technology (KIT), Institute of Biological and Chemical Systems, Biological Information Processing, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence: (A.H.); (C.W.)
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18
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Assessment of Pristine Carbon Nanotubes Toxicity in Rodent Models. Int J Mol Sci 2022; 23:ijms232315343. [PMID: 36499665 PMCID: PMC9739793 DOI: 10.3390/ijms232315343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Carbon nanotubes are increasingly used in nanomedicine and material chemistry research, mostly because of their small size over a large surface area. Due to their properties, they are very attractive candidates for use in medicine and as drug carriers, contrast agents, biological platforms, and so forth. Carbon nanotubes (CNTs) may affect many organs, directly or indirectly, so there is a need for toxic effects evaluation. The main mechanisms of toxicity include oxidative stress, inflammation, the ability to damage DNA and cell membrane, as well as necrosis and apoptosis. The research concerning CNTs focuses on different animal models, functionalization, ways of administration, concentrations, times of exposure, and a variety of properties, which have a significant effect on toxicity. The impact of pristine CNTs on toxicity in rodent models is being increasingly studied. However, it is immensely difficult to compare obtained results since there are no standardized tests. This review summarizes the toxicity issues of pristine CNTs in rodent models, as they are often the preferred model for human disease studies, in different organ systems, while considering the various factors that affect them. Regardless, the results showed that the majority of toxicological studies using rodent models revealed some toxic effects. Even with different properties, carbon nanotubes were able to generate inflammation, fibrosis, or biochemical changes in different organs. The problem is that there are only a small amount of long-term toxicity studies, which makes it impossible to obtain a good understanding of later effects. This article will give a greater overview of the situation on toxicity in many organs. It will allow researchers to look at the toxicity of carbon nanotubes in a broader context and help to identify studies that are missing to properly assess toxicity.
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Liang Y, Guo W, Li C, Shen G, Tan H, Sun P, Chen Z, Huang H, Li Z, Li Z, Ren Y, Li G, Hu Y. Tumor-Targeted Polydopamine-Based Nanoparticles for Multimodal Mapping Following Photothermal Therapy of Metastatic Lymph Nodes. Int J Nanomedicine 2022; 17:4659-4675. [PMID: 36199474 PMCID: PMC9528963 DOI: 10.2147/ijn.s367975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose Lymphadenectomy with lymph node (LN) mapping is essential for surgical removal of solid tumors. Existing agents do not provide accurate multimodal mapping and antitumor therapy for metastatic LNs; therefore, we fabricated a polydopamine (PDA) nanoparticle (NP)-based tumor-targeted LN mapping agent capable of multimodal mapping and guided photothermal therapy (PTT) for metastatic LNs. Materials and Methods PDA NPs modified with polyethylene glycol (PEG) were obtained by polymerization under alkaline conditions. The PEG-PDA NPs were loaded with the circular tripeptide Arg-Gly-Asp (cRGD) to achieve tumor-targeting capacity and with the fluorescent dye IR820 and magnetic resonance imaging (MRI) contrast Gd(NH2)2 for in situ detection. The resulting cRGD-PEG-PDA@IR820/Gd(NH2)2 (cRGD-PPIG) NPs were tested for their biosafety and metastatic LN mapping ability. They were drained specifically into LNs and selectively taken up by gastric MKN45 cells via αvβ3 integrin-mediated endocytosis. Results This phenomenon enabled MR/optical/near-infrared fluorescence multimodal metastatic LN mapping, guiding the creation of accurate and highly efficient PTT for gastric cancer metastatic LNs in mice. Conclusion In summary, we fabricated tumor-targeted cRGD-PPIG NPs with MR/optical/near-infrared fluorescence multimodal metastatic LN mapping capacity for surgery and efficient PTT guidance post-surgery.
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Affiliation(s)
- Yanrui Liang
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Weihong Guo
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Chuangji Li
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Guodong Shen
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Haoxian Tan
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, People’s Republic of China
| | - Peiwen Sun
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, People’s Republic of China
| | - Zhian Chen
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Huilin Huang
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Zhenhao Li
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Zhenyuan Li
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Yingxin Ren
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Guoxin Li
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Yanfeng Hu
- Department of General Surgery & Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
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20
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V Ganesh G, Ganesan K, Xu B, Ramkumar KM. Nrf2 driven macrophage responses in diverse pathophysiological contexts: Disparate pieces from a shared molecular puzzle. Biofactors 2022; 48:795-812. [PMID: 35618963 DOI: 10.1002/biof.1867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/03/2022] [Indexed: 11/10/2022]
Abstract
The wide anatomical distribution of macrophages and their vast array of functions match various polarization states and their involvement in homeostasis and disease. The confluence of different cellular signaling networks, including direct involvement in inflammation, at the doorstep of the transcription factor Nuclear Factor- erythroid (NF-E2) p45-related factor 2 (Nrf2) activation raises the importance of deciphering the molecular circuitry at the background of multiple-discrete and antagonistic yet flexible and contextual pathways. While we primarily focus on wound healing and repair mechanisms that are affected in diabetic foot ulcers (DFUs), we strive to explore the striking similarities and differences in molecular events including inflammation, angiogenesis, and fibrosis during tissue injury and wound persistence that accumulates pro-inflammatory senescent macrophages, as a means to identify possible targets or cellular mediators to lessen DFU disease burden. In addition, the role of iron in the modulation of Nrf2 response in macrophages is crucial and reviewed here. Targeted approaches, unlike conventional treatments, in DFU management will require the review and re-assessment of mediators with relevance to other pathological conditions.
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Affiliation(s)
- Goutham V Ganesh
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science & Technology, Kattankulathur, Tamil Nadu, India
| | - Kumar Ganesan
- School of Chinese Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong
| | - Baojun Xu
- Food Science and Technology Programme, BNU-HKBU United International College, Zhuhai, Guangdong, China
| | - Kunka Mohanram Ramkumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science & Technology, Kattankulathur, Tamil Nadu, India
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Gupta SS, Singh KP, Gupta S, Dusinska M, Rahman Q. Do Carbon Nanotubes and Asbestos Fibers Exhibit Common Toxicity Mechanisms? NANOMATERIALS 2022; 12:nano12101708. [PMID: 35630938 PMCID: PMC9145953 DOI: 10.3390/nano12101708] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 01/27/2023]
Abstract
During the last two decades several nanoscale materials were engineered for industrial and medical applications. Among them carbon nanotubes (CNTs) are the most exploited nanomaterials with global production of around 1000 tons/year. Besides several commercial benefits of CNTs, the fiber-like structures and their bio-persistency in lung tissues raise serious concerns about the possible adverse human health effects resembling those of asbestos fibers. In this review, we present a comparative analysis between CNTs and asbestos fibers using the following four parameters: (1) fibrous needle-like shape, (2) bio-persistent nature, (3) high surface to volume ratio and (4) capacity to adsorb toxicants/pollutants on the surface. We also compare mechanisms underlying the toxicity caused by certain diameters and lengths of CNTs and asbestos fibers using downstream pathways associated with altered gene expression data from both asbestos and CNT exposure. Our results suggest that indeed certain types of CNTs are emulating asbestos fiber as far as associated toxicity is concerned.
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Affiliation(s)
- Suchi Smita Gupta
- Department of Systems Biology and Bioinformatics, University of Rostock, 18051 Rostock, Germany; (S.S.G.); (K.P.S.); (S.G.)
| | - Krishna P. Singh
- Department of Systems Biology and Bioinformatics, University of Rostock, 18051 Rostock, Germany; (S.S.G.); (K.P.S.); (S.G.)
| | - Shailendra Gupta
- Department of Systems Biology and Bioinformatics, University of Rostock, 18051 Rostock, Germany; (S.S.G.); (K.P.S.); (S.G.)
| | - Maria Dusinska
- Health Effects Laboratory, Department of Environmental Chemistry, NILU-Norwegian Institute for Air Research, 2007 Kjeller, Norway;
| | - Qamar Rahman
- Amity Institute of Biotechnology, Amity University, Lucknow 226028, India
- Correspondence:
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22
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Saleh DM, Luo S, Ahmed OHM, Alexander DB, Alexander WT, Gunasekaran S, El-Gazzar AM, Abdelgied M, Numano T, Takase H, Ohnishi M, Tomono S, Hady RHAE, Fukamachi K, Kanno J, Hirose A, Xu J, Suzuki S, Naiki-Ito A, Takahashi S, Tsuda H. Assessment of the toxicity and carcinogenicity of double-walled carbon nanotubes in the rat lung after intratracheal instillation: a two-year study. Part Fibre Toxicol 2022; 19:30. [PMID: 35449069 PMCID: PMC9026941 DOI: 10.1186/s12989-022-00469-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/07/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Considering the expanding industrial applications of carbon nanotubes (CNTs), safety assessment of these materials is far less than needed. Very few long-term in vivo studies have been carried out. This is the first 2-year in vivo study to assess the effects of double walled carbon nanotubes (DWCNTs) in the lung and pleura of rats after pulmonary exposure. METHODS Rats were divided into six groups: untreated, Vehicle, 3 DWCNT groups (0.12 mg/rat, 0.25 mg/rat and 0.5 mg/rat), and MWCNT-7 (0.5 mg/rat). The test materials were administrated by intratracheal-intrapulmonary spraying (TIPS) every other day for 15 days. Rats were observed without further treatment until sacrifice. RESULTS DWCNT were biopersistent in the rat lung and induced marked pulmonary inflammation with a significant increase in macrophage count and levels of the chemotactic cytokines CCL2 and CCL3. In addition, the 0.5 mg DWCNT treated rats had significantly higher pulmonary collagen deposition compared to the vehicle controls. The development of carcinomas in the lungs of rats treated with 0.5 mg DWCNT (4/24) was not quite statistically higher (p = 0.0502) than the vehicle control group (0/25), however, the overall incidence of lung tumor development, bronchiolo-alveolar adenoma and bronchiolo-alveolar carcinoma combined, in the lungs of rats treated with 0.5 mg DWCNT (7/24) was statistically higher (p < 0.05) than the vehicle control group (1/25). Notably, two of the rats treated with DWCNT, one in the 0.25 mg group and one in the 0.5 mg group, developed pleural mesotheliomas. However, both of these lesions developed in the visceral pleura, and unlike the rats administered MWCNT-7, rats administered DWCNT did not have elevated levels of HMGB1 in their pleural lavage fluids. This indicates that the mechanism by which the mesotheliomas that developed in the DWCNT treated rats is not relevant to humans. CONCLUSIONS Our results demonstrate that the DWCNT fibers we tested are biopersistent in the rat lung and induce chronic inflammation. Rats treated with 0.5 mg DWCNT developed pleural fibrosis and lung tumors. These findings demonstrate that the possibility that at least some types of DWCNTs are fibrogenic and tumorigenic cannot be ignored.
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Affiliation(s)
- Dina Mourad Saleh
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assuit University, Assuit, Egypt
| | - Shengyong Luo
- College of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Omnia Hosny Mohamed Ahmed
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - David B Alexander
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan.
| | - William T Alexander
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan
| | - Sivagami Gunasekaran
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Ahmed M El-Gazzar
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Mohamed Abdelgied
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
- Department of Pediatrics and Human Development, Michigan State University, Michigan, USA
| | - Takamasa Numano
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan
| | - Hiroshi Takase
- Core Laboratory, Graduate School of Medicine, Nagoya City University, Nagoya, Japan
| | - Makoto Ohnishi
- Japan Industrial Safety and Health Association, Japan Bioassay Research Center, Hadano, Kanagawa, Japan
| | - Susumu Tomono
- Department of Microbiology and Immunology, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Randa Hussein Abd El Hady
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assuit University, Assuit, Egypt
| | - Katsumi Fukamachi
- Department of Neurotoxicology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Jun Kanno
- National Institute Hygienic Sciences, Kawasaki, Japan
| | | | - Jiegou Xu
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Shugo Suzuki
- Department of Molecular Pathology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Aya Naiki-Ito
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Satoru Takahashi
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Hiroyuki Tsuda
- Nanotoxicology Lab Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 467-8603, Japan.
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23
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Visser M, Gosens I, Bard D, van Broekhuizen P, Janer G, Kuempel E, Riediker M, Vogel U, Dekkers S. Towards health-based nano reference values (HNRVs) for occupational exposure: Recommendations from an expert panel. NANOIMPACT 2022; 26:100396. [PMID: 35560294 PMCID: PMC10617652 DOI: 10.1016/j.impact.2022.100396] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/23/2022] [Accepted: 03/11/2022] [Indexed: 06/15/2023]
Abstract
Unique physicochemical characteristics of engineered nanomaterials (ENMs) suggest the need for nanomaterial-specific occupational exposure limits (OELs). Setting these limits remains a challenge. Therefore, the aim of this study was to set out a framework to evaluate the feasibility of deriving advisory health-based occupational limit values for groups of ENMs, based on scientific knowledge. We have used an expert panel approach to address three questions: 1) What ENM-categories should be distinguished to derive advisory health-based occupational limit values (or health-based Nano Reference Values, HNRVs) for groups of ENMs? 2) What evidence would be needed to define values for these categories? And 3) How much effort would it take to achieve this? The panel experts distinguished six possible categories of HNRVs: A) WHO-fiber-like high aspect ratio ENMs (HARNs), B) Non-WHO-fiber-like HARNs and other non-spheroidal ENMs, C) readily soluble spheroidal ENMs, D) biopersistent spheroidal ENMs with unknown toxicity, E) biopersistent spheroidal ENMs with substance-specific toxicity and F) biopersistent spheroidal ENMs with relatively low substance-specific toxicity. For category A, the WHO-fiber-like HARNs, agreement was reached on criteria defining this category and the approach of using health-based risk estimates for asbestos to derive the HNRV. For category B, a quite heterogeneous category, more toxicity data are needed to set an HNRV. For category C, readily soluble spheroidal ENMs, using the OEL of their molecular or ionic counterpart would be a good starting point. For the biopersistent ENMs with unknown toxicity, HNRVs cannot be applied as case-by-case testing is required. For the other biopersistent ENMs in category E and F, we make several recommendations that can facilitate the derivation of these HNRVs. The proposed categories and recommendations as outlined by this expert panel can serve as a reference point for derivation of HNRVs when health-based OELs for ENMs are not yet available.
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Affiliation(s)
- Maaike Visser
- National Institute for Public Health and the Environment, Bilthoven, the Netherlands.
| | - Ilse Gosens
- National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Delphine Bard
- Health and Safety Executive (HSE) Science and Research Centre, Buxton, United Kingdom
| | | | - Gemma Janer
- Leitat Technological Center, Barcelona, Spain
| | - Eileen Kuempel
- National Institute for Occupational Safety and Health, Cincinnati, OH, USA
| | - Michael Riediker
- Swiss Centre for Occupational and Environmental Health, Winterthur, Switzerland
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Susan Dekkers
- National Institute for Public Health and the Environment, Bilthoven, the Netherlands
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24
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Niu Q, Lv W, Yan T, Wang J, Yan B, Zhou D. Construction of Durvalumab/carbon nanotube/PEI/aptamer-siRNA chimera for the immunotherapy of hepatocellular carcinoma. Biomed Mater 2022; 17. [PMID: 35147513 DOI: 10.1088/1748-605x/ac5414] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/10/2022] [Indexed: 11/11/2022]
Abstract
Immunotherapy is the most promising treatment for hepatocellular carcinoma (HCC). However, the immunosuppressive microenvironment and necrosis limit its therapeutic effectiveness. Carbon nanotubes (CNTs) have good tissue permeability and can penetrate tumor necrosis area. Here we constructed a Durvalumab/CNT/PEI/ aptamer-siRNA chimera (chimera/Durmab/CNT) nanoparticles for the immunotherapy of HCC. In vivo and in vitro experiments showed that aptamer-siRNA chimeras could specifically bind HCC cells and inhibit the triggering receptor expressed on myeloid cells-2 (Trem2) expression, but had no effect on Trem2 expression in normal liver and lung. Transmission electron microscope (TEM) results showed that the CNT/PEI nanoparticles were 20-30 nm in diameter and 200-350nm in length. Dense PEI attachment can be observed on CNTs. CNT/PEI nanoparticles could control the sustained release of Durvalumab for 48 hours. In vitro experimental results showed that chimera/Durmab/CNT could increase the proportion of T cells and CD8+T cells, and then promote the apoptosis of HepG2 cells, and the therapeutic effect was superior to aptamer/Durmab/CNT and Durmab/CNT. We constructed a tumor-bearing mouse model, and the results showed that chimera/Durmab/CNT significantly inhibited the growth of transplanted tumor, and the volume and proliferation was further reduced in the chimera/Durmab/CNT group compared with the aptamer/Durmab/CNT group. T cells and CD8+T cells infiltration, and HCC cell apoptosis were significantly increased in the chimera/Durmab/CNT group. In conclusion, we constructed a Durvalumab/CNT/PEI/chimera, which can effectively treat HCC by activating anti-tumor immunity.
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Affiliation(s)
- Qiang Niu
- Medical College of Soochow University, Medical College of Soochow University, Suzhou, 215006, CHINA
| | - Wei Lv
- Department of Hepatobiliary Surgery, PLA Rocket Force Characteristic Medical Center, Beijing, BeiJing, 100088, CHINA
| | - Tao Yan
- Department of Hepatobiliary Surgery, PLA Rocket Force Characteristic Medical Center, Beijing, BeiJing, 100088, CHINA
| | - Jin Wang
- Department of Hepatobiliary Surgery, PLA Rocket Force Characteristic Medical Center, Beijing, BeiJing, 100088, CHINA
| | - Bin Yan
- Department of Critical Care Medicine, New Era Stroke Care, PLA Rocket Force Characteristic Medical Center, Beijing, BeiJing, 100088, CHINA
| | - Dinghua Zhou
- PLA Rocket Force Characteristic Medical Center, Beijing, Beijing, 100088, CHINA
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25
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Cheng Y, Chen Z, Yang S, Liu T, Yin L, Pu Y, Liang G. Nanomaterials-induced toxicity on cardiac myocytes and tissues, and emerging toxicity assessment techniques. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149584. [PMID: 34399324 DOI: 10.1016/j.scitotenv.2021.149584] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/07/2021] [Accepted: 08/07/2021] [Indexed: 06/13/2023]
Abstract
The extensive production and use of nanomaterials have resulted in the continuous release of nano-sized particles into the environment, and the health risks caused by exposure to these nanomaterials in the occupational population and the general population cannot be ignored. Studies have found that particle exposure is closely related to cardiovascular disease. In addition, there have been many reports that nanomaterials can enter the heart tissue, accumulate and then cause damage. Therefore, in the present article, literature related to nanomaterials-induced cardiotoxicity in recent years was collected from the PubMed database, and then organized and summarized to form a review. This article mainly discusses heart damage caused by nanomaterials from the following three aspects: Firstly, we summarize the research 8 carbon nanotubes, etc. Secondly, we discuss in depth the possible underlying mechanism of the damage to the heart caused by nanoparticles. Oxidative stress damage, mitochondrial damage, inflammation and apoptosis have been found to be key factors. Finally, we summarize the current research models used to evaluate the cardiotoxicity of nanomaterials, highlight reliable emerging technologies and in vitro models that have been used for toxicity evaluation of environmental pollutants in recent years, and indicate their application prospects.
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Affiliation(s)
- Yanping Cheng
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Zaozao Chen
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, PR China.
| | - Sheng Yang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Tong Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Lihong Yin
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Yuepu Pu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
| | - Geyu Liang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, PR China.
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26
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Pivetta TP, Botteon CEA, Ribeiro PA, Marcato PD, Raposo M. Nanoparticle Systems for Cancer Phototherapy: An Overview. NANOMATERIALS 2021; 11:nano11113132. [PMID: 34835896 PMCID: PMC8625970 DOI: 10.3390/nano11113132] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/13/2021] [Accepted: 11/16/2021] [Indexed: 12/24/2022]
Abstract
Photodynamic therapy (PDT) and photothermal therapy (PTT) are photo-mediated treatments with different mechanisms of action that can be addressed for cancer treatment. Both phototherapies are highly successful and barely or non-invasive types of treatment that have gained attention in the past few years. The death of cancer cells because of the application of these therapies is caused by the formation of reactive oxygen species, that leads to oxidative stress for the case of photodynamic therapy and the generation of heat for the case of photothermal therapies. The advancement of nanotechnology allowed significant benefit to these therapies using nanoparticles, allowing both tuning of the process and an increase of effectiveness. The encapsulation of drugs, development of the most different organic and inorganic nanoparticles as well as the possibility of surfaces' functionalization are some strategies used to combine phototherapy and nanotechnology, with the aim of an effective treatment with minimal side effects. This article presents an overview on the use of nanostructures in association with phototherapy, in the view of cancer treatment.
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Affiliation(s)
- Thais P. Pivetta
- CEFITEC, Department of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
- Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
| | - Caroline E. A. Botteon
- GNanoBio, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-900, Brazil; (C.E.A.B.); (P.D.M.)
| | - Paulo A. Ribeiro
- Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
| | - Priscyla D. Marcato
- GNanoBio, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-900, Brazil; (C.E.A.B.); (P.D.M.)
| | - Maria Raposo
- Laboratory of Instrumentation, Biomedical Engineering and Radiation Physics (LIBPhys-UNL), Department of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
- Correspondence: ; Fax: +351-21-294-85-49
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27
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Boraschi D, Li D, Li Y, Italiani P. In Vitro and In Vivo Models to Assess the Immune-Related Effects of Nanomaterials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182211769. [PMID: 34831525 PMCID: PMC8623312 DOI: 10.3390/ijerph182211769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 12/12/2022]
Abstract
The immunological safety of drugs, nanomaterials and contaminants is a central point in the regulatory evaluation and safety monitoring of working and public places and of the environment. In fact, anomalies in immune responses may cause diseases and hamper the physical and functional integrity of living organisms, from plants to human beings. In the case of nanomaterials, many experimental models are used for assessing their immunosafety, some of which have been adopted by regulatory bodies. All of them, however, suffer from shortcomings and approximations, and may be inaccurate in representing real-life responses, thereby leading to incomplete, incorrect or even misleading predictions. Here, we review the advantages and disadvantages of current nanoimmunosafety models, comparing in vivo vs. in vitro models and examining the use of animal vs. human cells, primary vs. transformed cells, complex multicellular and 3D models, organoids and organs-on-chip, in view of implementing a reliable and personalized nanoimmunosafety testing. The general conclusion is that the choice of testing models is key for obtaining reliable predictive information, and therefore special attention should be devoted to selecting the most relevant and realistic suite of models in order to generate relevant information that can allow for safer-by-design nanotechnological developments.
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Affiliation(s)
- Diana Boraschi
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China; (D.L.); (Y.L.)
- Institute of Biochemistry and Cell Biology (IBBC), Consiglio Nazionale delle Ricerche (CNR), 80131 Napoli, Italy;
- Stazione Zoologica Anton Dohrn, 80121 Napoli, Italy
- Correspondence:
| | - Dongjie Li
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China; (D.L.); (Y.L.)
| | - Yang Li
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518055, China; (D.L.); (Y.L.)
| | - Paola Italiani
- Institute of Biochemistry and Cell Biology (IBBC), Consiglio Nazionale delle Ricerche (CNR), 80131 Napoli, Italy;
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28
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Lai X, Guo Y, Chen M, Wei Y, Yi W, Shi Y, Xiong L. Caveolin1: its roles in normal and cancer stem cells. J Cancer Res Clin Oncol 2021; 147:3459-3475. [PMID: 34498146 DOI: 10.1007/s00432-021-03793-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 09/03/2021] [Indexed: 12/09/2022]
Abstract
PURPOSE Stem cells are characterized by the capability of self-renewal and multi-differentiation. Normal stem cells, which are important for tissue repair and tissue regeneration, can be divided into embryonic stem cells (ESCs) and somatic stem cells (SSCs) depending on their origin. As a subpopulation of cells within cancer, cancer stem cells (CSCs) are at the root of therapeutic resistance. Tumor-initiating cells (TICs) are necessary for tumor initiation. Caveolin1 (Cav1), a membrane protein located at the caveolae, participates in cell lipid transport, cell migration, cell proliferation, and cell signal transduction. The purpose of this review was to explore the relationship between Cav1 and stem cells. RESULTS In ESCs, Cav1 is beneficial for self-renewal, proliferation, and migration. In SSCs, Cav1 exhibits positive or/and negative effects on stem cell self-renewal, differentiation, proliferation, migration, and angiogenic capacity. Cav1 deficiency impairs normal stem cell-based tissue repair. In CSCs, Cav1 inhibits or/and promotes CSC self-renewal, differentiation, invasion, migration, tumorigenicity ability, and CSC formation. And suppressing Cav1 promotes chemo-sensitivity in CSCs and TICs. CONCLUSION Cav1 shows dual roles in stem cell biology. Targeting the Cav1-stem cell axis would be a new way for tissue repair and cancer drug resistance.
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Affiliation(s)
- Xingning Lai
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China.,Second Clinical Medical College, Nanchang University, Nanchang, 330006, China
| | - Yiling Guo
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China.,Second Clinical Medical College, Nanchang University, Nanchang, 330006, China
| | - Miaomiao Chen
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China.,First Clinical Medical College, Nanchang University, Nanchang, 330006, China
| | - Yuxuan Wei
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China.,Queen Mary School, Jiangxi Medical College of Nanchang University, Nanchang, 330006, China
| | - Wanting Yi
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China.,First Clinical Medical College, Nanchang University, Nanchang, 330006, China
| | - Yubo Shi
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China.,Queen Mary School, Jiangxi Medical College of Nanchang University, Nanchang, 330006, China
| | - Lixia Xiong
- Department of Pathophysiology, Medical College, Nanchang University, 461 Bayi Road, Nanchang, China. .,Jiangxi Province Key Laboratory of Tumor Pathogenesis and Molecular Pathology, Nanchang, 330006, China.
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29
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Schamschula E, Lahnsteiner A, Assenov Y, Hagmann W, Zaborsky N, Wiederstein M, Strobl A, Stanke F, Muley T, Plass C, Tümmler B, Risch A. Disease-related blood-based differential methylation in cystic fibrosis and its representation in lung cancer revealed a regulatory locus in PKP3 in lung epithelial cells. Epigenetics 2021; 17:837-860. [PMID: 34415821 PMCID: PMC9423854 DOI: 10.1080/15592294.2021.1959976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Cystic fibrosis (CF) is a monogenic disease, characterized by massive chronic lung inflammation. The observed variability in clinical phenotypes in monozygotic CF twins is likely associated with the extent of inflammation. This study sought to investigate inflammation-related aberrant DNA methylation in CF twins and to determine to what extent acquired methylation changes may be associated with lung cancer. Blood-based genome-wide DNA methylation analysis was performed to compare the DNA methylomes of monozygotic twins, from the European CF Twin and Sibling Study with various degrees of disease severity. Putatively inflammation-related and differentially methylated positions were selected from a large lung cancer case-control study and investigated in blood by targeted bisulphite next-generation-sequencing. An inflammation-related locus located in the Plakophilin-3 (PKP3) gene was functionally analysed regarding promoter and enhancer activity in presence and absence of methylation using luciferase reporter assays. We confirmed in a unique cohort that monozygotic twins, even if clinically discordant, have only minor differences in global DNA methylation patterns and blood cell composition. Further, we determined the most differentially methylated positions, a high proportion of which are blood cell-type-specific, whereas others may be acquired and thus have potential relevance in the context of inflammation as lung cancer risk factors. We identified a sequence in the gene body of PKP3 which is hypermethylated in blood from CF twins with severe phenotype and highly variably methylated in lung cancer patients and controls, independent of known clinical parameters, and showed that this region exhibits methylation-dependent promoter activity in lung epithelial cells.
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Affiliation(s)
| | | | - Yassen Assenov
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Wolfgang Hagmann
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nadja Zaborsky
- Department of Internal Medicine III with Haematology, Medical Oncology, Haemostaseology, Infectiology and Rheumatology, Oncologic Center, Salzburg Cancer Research Institute - Laboratory for Immunological and Molecular Cancer Research (SCRI-LIMCR), Paracelsus Medical University, Salzburg, Austria.,Cancer Cluster Salzburg, Salzburg, Austria
| | | | - Anna Strobl
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Frauke Stanke
- Clinical Research Group, Clinic for Pediatric Pneumology, Allergology and NeonatologyClinic for Pediatric Pneumology, Allergology and Neonatology, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Thomas Muley
- Translational Research Unit, Thoraxklinik Heidelberg, University of Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Christoph Plass
- Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Burkhard Tümmler
- Clinical Research Group, Clinic for Pediatric Pneumology, Allergology and NeonatologyClinic for Pediatric Pneumology, Allergology and Neonatology, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover Medical School, Hannover, Germany
| | - Angela Risch
- Department of Biosciences, University of Salzburg, Salzburg, Austria.,Division of Cancer Epigenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Cancer Cluster Salzburg, Salzburg, Austria.,Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Heidelberg, Germany
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Huaux F. Interpreting Immunoregulation in Lung Fibrosis: A New Branch of the Immune Model. Front Immunol 2021; 12:690375. [PMID: 34489937 PMCID: PMC8417606 DOI: 10.3389/fimmu.2021.690375] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/06/2021] [Indexed: 12/24/2022] Open
Abstract
Immunostimulation is recognized as an important contribution in lung fibrosis in some animal models and patient subsets. With this review, we illustrate an additional scenario covering the possible implication of immunoregulation during fibrogenesis. Available animal and human data indicate that pulmonary fibrosis also includes diverse and discrete immunoregulating populations comprising regulatory lymphocytes (T and B regs) and myeloid cells (immunosuppressive macrophages and myeloid-derived suppressive cells; MDSC). They are initially recruited to limit the establishment of deleterious inflammation but participate in the development of lung fibrosis by producing immunoregulatory mediators (mainly TGF-β1 and IL-10) that directly or indirectly stimulate fibroblasts and matrix protein deposition. The existence of this silent immunoregulatory environment sustains an alternative mechanism of fibrosis that explains why in some conditions neither pro-inflammatory cytokine deficiency nor steroid and immunosuppressive therapies limit lung fibrosis. Therefore, the persistent presence of immunoregulation is an important parameter to consider for refining therapeutical strategies in lung fibrotic disorders under non-immunostimulatory conditions.
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Affiliation(s)
- François Huaux
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
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31
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Barthel H, Darne C, Gaté L, Visvikis A, Seidel C. Continuous Long-Term Exposure to Low Concentrations of MWCNTs Induces an Epithelial-Mesenchymal Transition in BEAS-2B Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1742. [PMID: 34361127 PMCID: PMC8308165 DOI: 10.3390/nano11071742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/23/2021] [Accepted: 06/28/2021] [Indexed: 11/16/2022]
Abstract
In the field of nanotechnology, the use of multi-walled carbon nanotubes (MWCNTs) is growing. Pulmonary exposure during their production, use, and handling is raising concerns about their potential adverse health effects. The purpose of this study is to assess how the physical characteristics of MWCNTs, such as diameter and/or length, can play a role in cellular toxicity. Our experimental design is based on the treatment of human bronchial epithelial cells (BEAS-2B) for six weeks with low concentrations (0.125-1 µg/cm2) of MWCNTs having opposite characteristics: NM-403 and Mitsui-7. Following treatment with both MWCNTs, we observed an increase in mitotic abnormalities and micronucleus-positive cells. The cytotoxic effect was delayed in cells treated with NM-403 compared to Mitsui-7. After 4-6 weeks of treatment, a clear cellular morphological change from epithelial to fibroblast-like phenotype was noted, together with a change in the cell population composition. BEAS-2B cells underwent a conversion from the epithelial to mesenchymal state as we observed a decrease in the epithelial marker E-cadherin and an increased expression of mesenchymal markers N-cadherin, Vimentin, and Fibronectin. After four weeks of recovery, we showed that the induced epithelial-mesenchymal transition is reversible, and that the degree of reversibility depends on the MWCNT.
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Affiliation(s)
- Hélène Barthel
- Institut National de Recherche et de Sécurité, CEDEX, F-54519 Vandœuvre-lès-Nancy, France; (H.B.); (C.D.); (L.G.)
- Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Campus Biologie Santé, UMR 7365 CNRS-Université de Lorraine, CEDEX, F-54000 Vandœuvre-lès-Nancy, France;
| | - Christian Darne
- Institut National de Recherche et de Sécurité, CEDEX, F-54519 Vandœuvre-lès-Nancy, France; (H.B.); (C.D.); (L.G.)
| | - Laurent Gaté
- Institut National de Recherche et de Sécurité, CEDEX, F-54519 Vandœuvre-lès-Nancy, France; (H.B.); (C.D.); (L.G.)
| | - Athanase Visvikis
- Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle, Campus Biologie Santé, UMR 7365 CNRS-Université de Lorraine, CEDEX, F-54000 Vandœuvre-lès-Nancy, France;
| | - Carole Seidel
- Institut National de Recherche et de Sécurité, CEDEX, F-54519 Vandœuvre-lès-Nancy, France; (H.B.); (C.D.); (L.G.)
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32
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Wilson AJ, Rahman M, Kosmas P, Thanou M. Nanomaterials responding to microwaves: an emerging field for imaging and therapy. NANOSCALE ADVANCES 2021; 3:3417-3429. [PMID: 34527861 PMCID: PMC8388194 DOI: 10.1039/d0na00840k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/12/2021] [Indexed: 05/05/2023]
Abstract
In recent years, new microwave-based imaging, sensing and hyperthermia applications have emerged in the field of diagnostics and therapy. For diagnosis, this technology involves the application of low power microwaves, utilising contrast between the relative permittivity of tissues to identify pathologies. This contrast can be further enhanced through the implementation of nanomaterials. For therapy, this technology can be applied in tissues either through hyperthermia, which can help anti-cancer drug tumour penetration or as ablation to destroy malignant tissues. Nanomaterials can absorb electromagnetic radiation and can enhance the microwave hyperthermic effect. In this review we aim to introduce this area of renewed interest and provide insights into current developments in its technologies and companion nanoparticles, as well as presenting an overview of applications for diagnosis and therapy.
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Affiliation(s)
- Annah J Wilson
- School of Cancer & Pharmaceutical Sciences, King's College London, Institute of Pharmaceutical Science Franklin Wilkins Building, 150 Stamford Street London SE1 9NH UK
- Department of Engineering, King's College London UK
| | - Mohammed Rahman
- School of Cancer & Pharmaceutical Sciences, King's College London, Institute of Pharmaceutical Science Franklin Wilkins Building, 150 Stamford Street London SE1 9NH UK
- Department of Engineering, King's College London UK
| | | | - Maya Thanou
- School of Cancer & Pharmaceutical Sciences, King's College London, Institute of Pharmaceutical Science Franklin Wilkins Building, 150 Stamford Street London SE1 9NH UK
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33
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Orsi M, Palmai-Pallag M, Yakoub Y, Ibouraadaten S, De Beukelaer M, Bouzin C, Bearzatto B, Ambroise J, Gala JL, Brusa D, Lison D, Huaux F. Monocytic Ontogeny of Regenerated Macrophages Characterizes the Mesotheliomagenic Responses to Carbon Nanotubes. Front Immunol 2021; 12:666107. [PMID: 34194430 PMCID: PMC8236701 DOI: 10.3389/fimmu.2021.666107] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/28/2021] [Indexed: 12/13/2022] Open
Abstract
Macrophages are not only derived from circulating blood monocytes or embryonic precursors but also expand by proliferation. The origin determines macrophage fate and functions in steady state and pathological conditions. Macrophages predominantly infiltrate fibre-induced mesothelioma tumors and contribute to cancer development. Here, we revealed their ontogeny by comparing the response to needle-like mesotheliomagenic carbon nanotubes (CNT-7) with tangled-like non-mesotheliomagenic CNT-T. In a rat peritoneal cavity model of mesothelioma, both CNT induced a rapid macrophage disappearance reaction (MDR) of MHCIIlow resident macrophages generating an empty niche available for macrophage repopulation. Macrophage depletion after mesotheliomagenic CNT-7 was followed by a substantial inflammatory reaction, and macrophage replenishment completed after 7 days. Thirty days after non-mesotheliomagenic CNT-T, macrophage repopulation was still incomplete and accompanied by a limited inflammatory reaction. Cell depletion experiments, flow cytometry and RNA-seq analysis demonstrated that, after mesotheliomagenic CNT-7 exposure, resident macrophages were mainly replaced by an influx of monocytes, which differentiated locally into MHCIIhigh inflammatory macrophages. In contrast, the low inflammatory response induced by CNT-T was associated by the accumulation of self-renewing MHCIIlow macrophages that initially derive from monocytes. In conclusion, the mesotheliomagenic response to CNT specifically relies on macrophage niche recolonization by monocyte-derived inflammatory macrophages. In contrast, the apparent homeostasis after non-mesotheliomagenic CNT treatment involves a macrophage regeneration by proliferation. Macrophage depletion and repopulation are thus decisive events characterizing the carcinogenic activity of particles and fibres.
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Affiliation(s)
- Micaela Orsi
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Mihaly Palmai-Pallag
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Yousof Yakoub
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Saloua Ibouraadaten
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Michèle De Beukelaer
- Imaging Platform, Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Caroline Bouzin
- Imaging Platform, Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Bertrand Bearzatto
- Center for Applied Molecular Technologies, Institute of Experimental and Clinical Research (IREC), Cliniques Universitaires Saint-Luc and Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Jérôme Ambroise
- Center for Applied Molecular Technologies, Institute of Experimental and Clinical Research (IREC), Cliniques Universitaires Saint-Luc and Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Jean-Luc Gala
- Center for Applied Molecular Technologies, Institute of Experimental and Clinical Research (IREC), Cliniques Universitaires Saint-Luc and Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Davide Brusa
- Flow Cytometry Platform, Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Dominique Lison
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
| | - François Huaux
- Louvain Centre for Toxicology and Applied Pharmacology (LTAP), Institute of Experimental and Clinical Research (IREC), Université Catholique de Louvain (UCLouvain), Brussels, Belgium
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34
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Yang C, Zhu Y, Guan C, Wang L, Xu L, Li D, Zhang S, Zhang L, Yang D, Xu Y. Crystal Phase-Related Toxicity of One-Dimensional Titanium Dioxide Nanomaterials on Kidney Cells. ACS APPLIED BIO MATERIALS 2021; 4:3499-3506. [PMID: 35014434 DOI: 10.1021/acsabm.1c00036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One-dimensional (1D) nanomaterials are widely used in different fields, and the increased application of 1D nanomaterials has drawn concerns about their unknown toxicity. 1D titanium oxide (TiO2) nanomaterials in different crystal phases are commonly applied in environmental remediation and solar energy conversion fields, but these materials pose a threat to human health, especially to the kidneys, an organ with abundant blood flow. To systematically evaluate the cytotoxicity to the kidneys, TiO2 nanofibers with TiO2(B), anatase, and rutile phases, as well as nanorods with anatase and rutile phases were synthesized and added to the culture medium of HK2 cells. Cell counting kit-8 assay, 2',7'-dichlorofluorescin diacetate assay, Hoechst 33342 staining experiments, and quantitative real-time reverse transcription polymerase chain reaction tests were used to explore the renal effects of the as-prepared TiO2 nanomaterials in the short term or long term. In the short-term evaluation, all the added TiO2 nanomaterials were toxic to HK2 cells, and the cytotoxicity was dose-dependent. Rutile TiO2 can widely attach to the cell surface and displays the most serious cell-killing and proapoptotic ability, while anatase induces the most serious oxidative stress. In long-term evaluation, all the as-prepared TiO2 nanomaterials led to epithelial mesenchymal transition (EMT), a mechanism of renal fibrosis. Consistent with the short-term results, rutile induced the most serious EMT. This study indicated that the renal toxicity of 1D TiO2 nanomaterials is crystal phase-dependent and that rutile induced the most significant renal cell injury. Oxidative stress is a crucial but not the only contributor to the renal toxicity of TiO2 nanomaterials in the short term.
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Affiliation(s)
- Chengyu Yang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Yukun Zhu
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Chen Guan
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Lin Wang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Lingyu Xu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Daohao Li
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Shuchao Zhang
- Department of Blood Transfusion, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Lixue Zhang
- State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Dongjiang Yang
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China.,State Key Laboratory of Bio-fibers and Eco-textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Yan Xu
- Department of Nephrology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
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35
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Sun T, Kang Y, Liu J, Zhang Y, Ou L, Liu X, Lai R, Shao L. Nanomaterials and hepatic disease: toxicokinetics, disease types, intrinsic mechanisms, liver susceptibility, and influencing factors. J Nanobiotechnology 2021; 19:108. [PMID: 33863340 PMCID: PMC8052793 DOI: 10.1186/s12951-021-00843-2] [Citation(s) in RCA: 21] [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: 08/27/2020] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
The widespread use of nanomaterials (NMs) has raised concerns that exposure to them may introduce potential risks to the human body and environment. The liver is the main target organ for NMs. Hepatotoxic effects caused by NMs have been observed in recent studies but have not been linked to liver disease, and the intrinsic mechanisms are poorly elucidated. Additionally, NMs exhibit varied toxicokinetics and induce enhanced toxic effects in susceptible livers; however, thus far, this issue has not been thoroughly reviewed. This review provides an overview of the toxicokinetics of NMs. We highlight the possibility that NMs induce hepatic diseases, including nonalcoholic steatohepatitis (NASH), fibrosis, liver cancer, and metabolic disorders, and explore the underlying intrinsic mechanisms. Additionally, NM toxicokinetics and the potential induced risks in the livers of susceptible individuals, including subjects with liver disease, obese individuals, aging individuals and individuals of both sexes, are summarized. To understand how NM type affect their toxicity, the influences of the physicochemical and morphological (PCM) properties of NMs on their toxicokinetics and toxicity are also explored. This review provides guidance for further toxicological studies on NMs and will be important for the further development of NMs for applications in various fields.
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Affiliation(s)
- Ting Sun
- Foshan Stomatological Hospital, Foshan University, Foshan, 528000, China.
- Medical Center of Stomatology, The First Affiliated Hospital, Guangzhou, 510630, China.
| | - Yiyuan Kang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Jia Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Yanli Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Lingling Ou
- Medical Center of Stomatology, The First Affiliated Hospital, Guangzhou, 510630, China
| | - Xiangning Liu
- Medical Center of Stomatology, The First Affiliated Hospital, Guangzhou, 510630, China
| | - Renfa Lai
- Medical Center of Stomatology, The First Affiliated Hospital, Guangzhou, 510630, China
| | - Longquan Shao
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China.
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36
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Ma Q, Pollard KM, Brown JM, Italiani P, Moghimi SM. Editorial: Immune Mechanisms in the Pathologic Response to Particles, Fibers, and Nanomaterials. Front Immunol 2021; 12:665810. [PMID: 33815427 PMCID: PMC8017123 DOI: 10.3389/fimmu.2021.665810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 02/24/2021] [Indexed: 11/22/2022] Open
Affiliation(s)
- Qiang Ma
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, United States
| | - Kenneth Michael Pollard
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States
| | - Jared M Brown
- Skaggs School of Pharmacy, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Paola Italiani
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), Naples, Italy
| | - Seyed Moein Moghimi
- School of Pharmacy, Newcastle University, Newcastle upon Tyne, United Kingdom
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37
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Kyriakides TR, Raj A, Tseng TH, Xiao H, Nguyen R, Mohammed FS, Halder S, Xu M, Wu MJ, Bao S, Sheu WC. Biocompatibility of nanomaterials and their immunological properties. Biomed Mater 2021; 16:10.1088/1748-605X/abe5fa. [PMID: 33578402 PMCID: PMC8357854 DOI: 10.1088/1748-605x/abe5fa] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 02/12/2021] [Indexed: 12/16/2022]
Abstract
Nanomaterials (NMs) have revolutionized multiple aspects of medicine by enabling novel sensing, diagnostic, and therapeutic approaches. Advancements in processing and fabrication have also allowed significant expansion in the applications of the major classes of NMs based on polymer, metal/metal oxide, carbon, liposome, or multi-scale macro-nano bulk materials. Concomitantly, concerns regarding the nanotoxicity and overall biocompatibility of NMs have been raised. These involve putative negative effects on both patients and those subjected to occupational exposure during manufacturing. In this review, we describe the current state of testing of NMs including those that are in clinical use, in clinical trials, or under development. We also discuss the cellular and molecular interactions that dictate their toxicity and biocompatibility. Specifically, we focus on the reciprocal interactions between NMs and host proteins, lipids, and sugars and how these induce responses in immune and other cell types leading to topical and/or systemic effects.
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Affiliation(s)
- Themis R Kyriakides
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
- Department of Pathology, Yale University, New Haven, CT 06405, United States of America
- Vascular Biology and Therapeutics Program, Yale University, New Haven, CT 06405, United States of America
| | - Arindam Raj
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06405, United States of America
| | - Tiffany H Tseng
- Department of Pathology, Yale University, New Haven, CT 06405, United States of America
- Vascular Biology and Therapeutics Program, Yale University, New Haven, CT 06405, United States of America
| | - Hugh Xiao
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
| | - Ryan Nguyen
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
| | - Farrah S Mohammed
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
| | - Saiti Halder
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
| | - Mengqing Xu
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
- Vascular Biology and Therapeutics Program, Yale University, New Haven, CT 06405, United States of America
| | - Michelle J Wu
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
| | - Shuozhen Bao
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
- Vascular Biology and Therapeutics Program, Yale University, New Haven, CT 06405, United States of America
| | - Wendy C Sheu
- Department of Biomedical Engineering, Yale University, New Haven, CT 06405, United States of America
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38
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Jiang Y, Gong H, Jiang S, She C, Cao Y. Multi-walled carbon nanotubes decrease neuronal NO synthase in 3D brain organoids. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141384. [PMID: 32823226 DOI: 10.1016/j.scitotenv.2020.141384] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
Multi-walled carbon nanotubes (MWCNTs) might induce the dysfunction of neuronal NO synthase (nNOS) and impair the function of brains. But to the best of our knowledge, this conclusion was made by using laboratory animals or conventional nerve cell cultures; however, these models might not reflect the complex conditions of human brains. Recently, the development of 3D brain organoids (also known as organotypic cultures) derived from human induced pluripotent stem cells (iPSCs) provides a platform to investigate the behaviors of human brains in vitro. In this study, we investigated the toxicity of MWCNTs to 3D brain organoids which expressed the cortical layer markers. It was shown that MWCNTs induced cytotoxicity to 3D brain organoids but not in dose-dependent manner. Exposure to high level of MWCNTs (64 μg/mL) reduced the levels of intracellular NO but increased superoxide. As the mechanism, 64 μg/mL MWCNTs significantly reduced the protein level of nNOS. The nNOS regulators nuclear factor kappa-B (NF-κB) proteins were significantly induced by MWCNTs, whereas Kruppel-like factor 4 (KLF4) proteins were reduced particularly after exposure to low level of MWCNTs (16 μg/mL). The results from fluorescence micro-optical sectioning tomography (MOST) confirmed the decrease of nNOS proteins, not only at the out-layers that directly contacted MWCNTs, but also at the inner-layers. Combined, our results suggested that MWCNTs could decrease nNOS activity by inducing oxidative stress and modulating NF-κB-KLF4 pathway. This study also showed the potential of 3D brain organoids in mechanism-based toxicology studies.
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Affiliation(s)
- Ying Jiang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province and Key Laboratory of Hunan Higher Education for Western Hunan Medicinal Plant and Ethnobotany, Huaihua University, Huaihua 418008, China; Key Laboratory of Environment-Friendly Chemistry and Application of Ministry of Education, Lab of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Housheng Gong
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province and Key Laboratory of Hunan Higher Education for Western Hunan Medicinal Plant and Ethnobotany, Huaihua University, Huaihua 418008, China; Key Laboratory of Environment-Friendly Chemistry and Application of Ministry of Education, Lab of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Shaohua Jiang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chaowen She
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province and Key Laboratory of Hunan Higher Education for Western Hunan Medicinal Plant and Ethnobotany, Huaihua University, Huaihua 418008, China.
| | - Yi Cao
- Key Laboratory of Environment-Friendly Chemistry and Application of Ministry of Education, Lab of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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39
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Dong J. Signaling Pathways Implicated in Carbon Nanotube-Induced Lung Inflammation. Front Immunol 2020; 11:552613. [PMID: 33391253 PMCID: PMC7775612 DOI: 10.3389/fimmu.2020.552613] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammation is a tissue response to a variety of harmful stimuli, such as pathogens, irritants, and injuries, and can eliminate insults and limit tissue damage. However, dysregulated inflammation is recognized as a cause of many human diseases, exemplified by organ fibrosis and cancer. In this regard, inflammation-promoted fibrosis is commonly observed in human lung diseases, such as idiopathic pulmonary fibrosis and pneumoconiosis. Carbon nanotubes (CNTs) are a type of nanomaterials with unique properties and various industrial and commercial applications. On the other hand, certain forms of CNTs are potent inducers of inflammation and fibrosis in animal lungs. Notably, acute inflammation is a remarkable phenotype elicited by CNTs in the lung during the early acute phase post-exposure; whereas a type 2 immune response is evidently activated and dominates during the late acute and chronic phases, leading to type 2 inflammation and lung fibrosis. Numerous studies demonstrate that these immune responses involve distinct immune cells, various pathologic factors, and specific functions and play crucial roles in the initiation and progression of inflammation and fibrosis in the lung exposed to CNTs. Thus, the mechanistic understanding of the immune responses activated by CNTs has drawn great attention in recent years. This article reviews the major findings on the cell signaling pathways that are activated in immune cells and exert functions in promoting immune responses in CNT-exposed lungs, which would provide new insights into the understanding of CNT-induced lung inflammation and inflammation-driven fibrosis, the application of CNT-induced lung inflammation and fibrosis as a new disease model, and the potential of targeting immune cells as a therapeutic strategy for relevant human lung diseases.
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Affiliation(s)
- Jie Dong
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
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40
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Sheikhpour M, Naghinejad M, Kasaeian A, Lohrasbi A, Shahraeini SS, Zomorodbakhsh S. The Applications of Carbon Nanotubes in the Diagnosis and Treatment of Lung Cancer: A Critical Review. Int J Nanomedicine 2020; 15:7063-7078. [PMID: 33061368 PMCID: PMC7522408 DOI: 10.2147/ijn.s263238] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/31/2020] [Indexed: 12/14/2022] Open
Abstract
The importance of timely diagnosis and the complete treatment of lung cancer for many people with this deadly disease daily increases due to its high mortality. Diagnosis and treatment with helping the nanoparticles are useful, although they have reasonable harms. This article points out that the side effects of using carbon nanotube (CNT) in this disease treatment process such as inflammation, fibrosis, and carcinogenesis are very problematic. Toxicity can reduce to some extent using the techniques such as functionalizing to proper dimensions as a longer length, more width, and greater curvature. The targeted CNT sensors can be connected to various modified vapors. In this regard, with helping this method, screening makes non-invasive diagnosis possible. Researchers have also found that nanoparticles such as CNTs could be used as carriers to direct drug delivery, especially with chemotherapy drugs. Most of these carriers were multi-wall carbon nanotubes (MWCNT) used for cancerous cell targeting. The results of laboratory and animal researches in the field of diagnosis and treatment became very desirable and hopeful. The collection of researches summarized has highlighted the requirement for a detailed assessment which includes CNT dose, duration, method of induction, etc., to achieve the most controlled conditions for animal and human studies. In the discussion section, 4 contradictory issues are discussed which are invited researchers to do more research to get clearer results.
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Affiliation(s)
- Mojgan Sheikhpour
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.,Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Naghinejad
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.,Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran, Iran
| | - Alibakhsh Kasaeian
- Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Armaghan Lohrasbi
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.,Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Sadegh Shahraeini
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.,Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran, Iran
| | - Shahab Zomorodbakhsh
- Department of Chemistry, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran
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41
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Salama L, Pastor ER, Stone T, Mousa SA. Emerging Nanopharmaceuticals and Nanonutraceuticals in Cancer Management. Biomedicines 2020; 8:E347. [PMID: 32932737 PMCID: PMC7554840 DOI: 10.3390/biomedicines8090347] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/01/2020] [Accepted: 09/08/2020] [Indexed: 02/06/2023] Open
Abstract
Nanotechnology is the science of nanoscale, which is the scale of nanometers or one billionth of a meter. Nanotechnology encompasses a broad range of technologies, materials, and manufacturing processes that are used to design and/or enhance many products, including medicinal products. This technology has achieved considerable progress in the oncology field in recent years. Most chemotherapeutic agents are not specific to the cancer cells they are intended to treat, and they can harm healthy cells, leading to numerous adverse effects. Due to this non-specific targeting, it is not feasible to administer high doses that may harm healthy cells. Moreover, low doses can cause cancer cells to acquire resistance, thus making them hard to kill. A solution that could potentially enhance drug targeting and delivery lies in understanding the complexity of nanotechnology. Engineering pharmaceutical and natural products into nano-products can enhance the diagnosis and treatment of cancer. Novel nano-formulations such as liposomes, polymeric micelles, dendrimers, quantum dots, nano-suspensions, and gold nanoparticles have been shown to enhance the delivery of drugs. Improved delivery of chemotherapeutic agents targets cancer cells rather than healthy cells, thereby preventing undesirable side effects and decreasing chemotherapeutic drug resistance. Nanotechnology has also revolutionized cancer diagnosis by using nanotechnology-based imaging contrast agents that can specifically target and therefore enhance tumor detection. In addition to the delivery of drugs, nanotechnology can be used to deliver nutraceuticals like phytochemicals that have multiple properties, such as antioxidant activity, that protect cells from oxidative damage and reduce the risk of cancer. There have been multiple advancements and implications for the use of nanotechnology to enhance the delivery of both pharmaceutical and nutraceutical products in cancer prevention, diagnosis, and treatment.
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Affiliation(s)
| | | | | | - Shaker A. Mousa
- The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, USA; (L.S.); (E.R.P.); (T.S.)
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42
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Recent Advances in Nanocarrier-Assisted Therapeutics Delivery Systems. Pharmaceutics 2020; 12:pharmaceutics12090837. [PMID: 32882875 PMCID: PMC7559885 DOI: 10.3390/pharmaceutics12090837] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/13/2022] Open
Abstract
Nanotechnologies have attracted increasing attention in their application in medicine, especially in the development of new drug delivery systems. With the help of nano-sized carriers, drugs can reach specific diseased areas, prolonging therapeutic efficacy while decreasing undesired side-effects. In addition, recent nanotechnological advances, such as surface stabilization and stimuli-responsive functionalization have also significantly improved the targeting capacity and therapeutic efficacy of the nanocarrier assisted drug delivery system. In this review, we evaluate recent advances in the development of different nanocarriers and their applications in therapeutics delivery.
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Rau JV, Fosca M, Fadeeva IV, Kalay S, Culha M, Raucci MG, Fasolino I, Ambrosio L, Antoniac IV, Uskoković V. Tricalcium phosphate cement supplemented with boron nitride nanotubes with enhanced biological properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:111044. [DOI: 10.1016/j.msec.2020.111044] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/26/2020] [Accepted: 04/30/2020] [Indexed: 11/26/2022]
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Wright MD, Buckley AJ, Smith R. Estimates of carbon nanotube deposition in the lung: improving quality and robustness. Inhal Toxicol 2020; 32:282-298. [PMID: 32689844 DOI: 10.1080/08958378.2020.1785594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Carbon nanotube (CNT) in vivo inhalation studies are increasingly providing estimates of the quantity of material deposited in the lung, generally estimated using standard formulae and pulmonary deposition models. These models have typically been developed and validated using data from studies using sphere-like particles. Given the importance of particle morphology to pulmonary deposition, the appropriateness of such an approach was explored to identify any potential limitations. Aerosolized CNT particles typically form 'fiber-like' and/or 'broadly spherical' agglomerates. A review of currently used deposition models indicates that none have been directly validated against results for CNT, however, models for spherical particles have been extensively validated against a wide range of particle sizes and materials and are thus expected to provide reasonable estimates for most 'broadly spherical' CNT particles, although experimental confirmation of this would be of benefit, especially given their low density. The validation of fiber deposition models is significantly less extensive and, in general, focused on larger particles, e.g. asbestos. This raises concerns about the accuracy of deposition estimates for 'fiber-like' CNT particles and recommendations are made for future research to address this. An appreciation of the uncertainties on CNT deposition estimates is important for their interpretation and thus it is recommended that model sensitivity and uncertainty assessments be undertaken. Issues surrounding the measurement and derivation of model input data are also addressed, including instrument responses and particle density assessment options. Recommendations are also made for aerosol characterization to 'future-proof' CNT inhalation studies regarding advances in deposition modeling and toxicological understanding.
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Affiliation(s)
- Matthew D Wright
- Centre for Radiation, Chemical and Environmental Hazards (CRCE), Public Health England (PHE), Chilton, UK
| | - Alison J Buckley
- Centre for Radiation, Chemical and Environmental Hazards (CRCE), Public Health England (PHE), Chilton, UK
| | - Rachel Smith
- Centre for Radiation, Chemical and Environmental Hazards (CRCE), Public Health England (PHE), Chilton, UK
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45
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Carbon Nanotubes under Scrutiny: Their Toxicity and Utility in Mesothelioma Research. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10134513] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Research on the toxicity of engineered carbon nanotubes (CNT) was initiated by Belgian academic chemists and toxicologists more than 15 years ago. It is now undisputed that some of these attractive nanomaterials induce serious illness such as fibrosis and cancer. The physico-chemical determinants of CNT-induced adverse effects are now elucidated and include shape, nanoscale diameter, and structural defects. Generated in vitro and in vivo data on their inflammogenic and fibrogenic activities were combined and translated in AOP (adverse outcome pathways) available for risk assessment and regulatory policies. The asbestos-like carcinogenic effect of CNT, notably their capacity to induce malignant mesothelioma (MM), remain, however, a cause of concern for public health and strongly curb the craze for CNT in industries. MM still represents a real challenge for clinicians and a highly refractory cancer to existing therapeutic strategies. By comparing mesotheliomagenic CNT (needle-like CNT-N) to non mesotheliomagenic CNT (tangled-like CNT-T), our group generated a relevant animal model that highlights immune pathways specifically associated to the carcinogenic process. Evidence indicates that only CNT-N possess the intrinsic capacity to induce a preferential, rapid, and sustained accumulation of host immunosuppressive cells that subvert immune surveillance and suppress anti-mesothelioma immunity. This new concept offers novel horizons for the clinical management of mesothelioma and represents an additional tool for predicting the mesotheliomagenic activity of newly elaborated CNT or nanoparticles.
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Ma Q. Polarization of Immune Cells in the Pathologic Response to Inhaled Particulates. Front Immunol 2020; 11:1060. [PMID: 32625201 PMCID: PMC7311785 DOI: 10.3389/fimmu.2020.01060] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/01/2020] [Indexed: 12/30/2022] Open
Abstract
Polarization of immune cells is commonly observed in host responses associated with microbial immunity, inflammation, tumorigenesis, and tissue repair and fibrosis. In this process, immune cells adopt distinct programs and perform specialized functions in response to specific signals. Accumulating evidence indicates that inhalation of micro- and nano-sized particulates activates barrier immune programs in the lung in a time- and context-dependent manner, including type 1 and type 2 inflammation, and T helper (Th) 17 cell, regulatory T cell (Treg), innate lymphoid cell (ILC), and myeloid-derived suppressor cell (MDSC) responses, which highlight the polarization of several major immune cell types. These responses facilitate the pulmonary clearance and repair under physiological conditions. When exposure persists and overwhelms the clearance capacity, they foster the chronic progression of inflammation and development of progressive disease conditions, such as fibrosis and cancer. The pulmonary response to insoluble particulates thus represents a distinctive disease process wherein non-infectious, persistent exposures stimulate the polarization of immune cells to orchestrate dynamic inflammatory and immune reactions, leading to pulmonary and pleural chronic inflammation, fibrosis, and malignancy. Despite large variations in particles and their associated disease outcomes, the early response to inhaled particles often follows a common path. The initial reactions entail a barrier immune response dominated by type 1 inflammation that features active phagocytosis by M1 macrophages and recruitment of neutrophils, both of which are fueled by Th1 and proinflammatory cytokines. Acute inflammation is immediately followed by resolution and tissue repair mediated through specialized pro-resolving mediators (SPMs) and type 2 cytokines and cells including M2 macrophages and Th2 lymphocytes. As many particles and fibers cannot be digested by phagocytes, resolution is often extended and incomplete, and type 2 inflammation becomes heightened, which promotes interstitial fibrosis, granuloma formation, and tumorigenesis. Recent studies also reveal the involvement of Th17-, Treg-, ILC-, and MDSC-mediated responses in the pathogenesis caused by inhaled particulates. This review synopsizes the progress in understanding the interplay between inhaled particles and the pulmonary immune functions in disease pathogenesis, with focus on particle-induced polarization of immune cells and its role in the development of chronic inflammation, fibrosis, and cancer in the lung.
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Affiliation(s)
- Qiang Ma
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
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Lim CS, Porter DW, Orandle MS, Green BJ, Barnes MA, Croston TL, Wolfarth MG, Battelli LA, Andrew ME, Beezhold DH, Siegel PD, Ma Q. Resolution of Pulmonary Inflammation Induced by Carbon Nanotubes and Fullerenes in Mice: Role of Macrophage Polarization. Front Immunol 2020; 11:1186. [PMID: 32595644 PMCID: PMC7303302 DOI: 10.3389/fimmu.2020.01186] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022] Open
Abstract
Pulmonary exposure to certain engineered nanomaterials (ENMs) causes chronic lesions like fibrosis and cancer in animal models as a result of unresolved inflammation. Resolution of inflammation involves the time-dependent biosynthesis of lipid mediators (LMs)-in particular, specialized pro-resolving mediators (SPMs). To understand how ENM-induced pulmonary inflammation is resolved, we analyzed the inflammatory and pro-resolving responses to fibrogenic multi-walled carbon nanotubes (MWCNTs, Mitsui-7) and low-toxicity fullerenes (fullerene C60, C60F). Pharyngeal aspiration of MWCNTs at 40 μg/mouse or C60F at a dose above 640 μg/mouse elicited pulmonary effects in B6C3F1 mice. Both ENMs stimulated acute inflammation, predominated by neutrophils, in the lung at day 1, which transitioned to histiocytic inflammation by day 7. By day 28, the lesion in MWCNT-exposed mice progressed to fibrotic granulomas, whereas it remained as alveolar histiocytosis in C60F-exposed mice. Flow cytometric profiling of whole lung lavage (WLL) cells revealed that neutrophil recruitment was the greatest at day 1 and declined to 36.6% of that level in MWCNT- and 16.8% in C60F-treated mice by day 7, and to basal levels by day 28, suggesting a rapid initiation phase and an extended resolution phase. Both ENMs induced high levels of proinflammatory leukotriene B4 (LTB4) and prostaglandin E2 (PGE2) with peaks at day 1, and high levels of SPMs resolvin D1 (RvD1) and E1 (RvE1) with peaks at day 7. MWCNTs and C60F induced time-dependent polarization of M1 macrophages with a peak at day 1 and subsequently of M2 macrophages with a peak at day 7 in the lung, accompanied by elevated levels of type 1 or type 2 cytokines, respectively. M1 macrophages exhibited preferential induction of arachidonate 5-lipoxygenase activating protein (ALOX5AP), whereas M2 macrophages had a high level expression of arachidonate 15-lipoxygenase (ALOX15). Polarization of macrophages in vitro differentially induced ALOX5AP in M1 macrophages or ALOX15 in M2 macrophages resulting in increased preferential biosynthesis of proinflammatory LMs or SPMs. MWCNTs increased the M1- or M2-specific production of LMs accordingly. These findings support a mechanism by which persistent ENM-induced neutrophilic inflammation is actively resolved through time-dependent polarization of macrophages and enhanced biosynthesis of specialized LMs via distinct ALOX pathways.
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Affiliation(s)
- Chol Seung Lim
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Dale W. Porter
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Marlene S. Orandle
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Brett J. Green
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Mark A. Barnes
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Tara L. Croston
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Michael G. Wolfarth
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Lori A. Battelli
- Pathology and Physiology Research Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Michael E. Andrew
- Bioanalytics Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
- Office of the Director, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Donald H. Beezhold
- Office of the Director, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Paul D. Siegel
- Office of the Director, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
| | - Qiang Ma
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
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48
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Dong J. Microenvironmental Alterations in Carbon Nanotube-Induced Lung Inflammation and Fibrosis. Front Cell Dev Biol 2020; 8:126. [PMID: 32185174 PMCID: PMC7059188 DOI: 10.3389/fcell.2020.00126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/13/2020] [Indexed: 12/30/2022] Open
Abstract
Carbon nanotube (CNT)-induced pulmonary inflammation and fibrosis have been intensively observed and characterized in numerous animal studies in the past decade. Remarkably, CNT-induced fibrotic lesions highly resemble some human fibrotic lung diseases, such as IPF and pneumoconiosis, regarding disease development and pathological features. This notion leads to a serious concern over the health impact of CNTs in exposed human populations, considering the rapidly expanding production of CNT materials for diverse industrial and commercial applications, and meanwhile provides the rationale for exploring CNT-induced pathologic effects in the lung. Accumulating mechanistic understanding of CNT lung pathology at the systemic, cellular, and molecular levels has demonstrated the potential of using CNT-exposed animals as a new disease model for the studies on inflammation, fibrosis, and the interactions between these two disease states. Tissue microenvironment plays critical roles in maintaining homeostasis and physiological functions of organ systems. When aberrant microenvironment forms under intrinsic or extrinsic stimulation, tissue abnormality, organ dysfunction, and pathological outcomes are induced, resulting in disease development. In this article, the cellular and molecular alterations that are induced in tissue microenvironment and implicated in the initiation and progression of inflammation and fibrosis in CNT-exposed lungs, including effector cells, soluble mediators, and functional events exemplified by cell differentiation and extracellular matrix (ECM) modification, are summarized and discussed. This analysis would provide new insights into the mechanistic understanding of lung inflammation and fibrosis induced by CNTs, as well as the development of CNT-exposed animals as a new model for human lung diseases.
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Affiliation(s)
- Jie Dong
- Receptor Biology Laboratory, Toxicology and Molecular Biology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, United States
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