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Chen PH, Chi JT. Unexpected zinc dependency of ferroptosis: what is in a name? Oncotarget 2021; 12:1126-1127. [PMID: 34136082 PMCID: PMC8202775 DOI: 10.18632/oncotarget.27951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Indexed: 01/22/2023] Open
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Le Y, Zhang Z, Wang C, Lu D. Ferroptotic Cell Death: New Regulatory Mechanisms for Metabolic Diseases. Endocr Metab Immune Disord Drug Targets 2021; 21:785-800. [DOI: 10.2174/1871530320666200731175328] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 11/22/2022]
Abstract
Background:
Cell death is a fundamental biological phenomenon that contributes to the
pathogenesis of various diseases. Regulation of iron and iron metabolism has received considerable
research interests especially concerning the progression of metabolic diseases.
Discussion:
Emerging evidence shows that ferroptosis, a non-apoptotic programmed cell death induced by iron-dependent
lipid peroxidation, contributes to the development of complex diseases such as non-alcoholic steatohepatitis, cardiomyopathy, renal ischemia-reperfusion, and neurodegenerative diseases. Therefore, inhibiting ferroptosis can improve the pathophysiology of associated metabolic diseases. This review describes the vital role of ferroptosis in mediating the development
of certain metabolic diseases. Besides, the potential risk of iron and ferroptosis in atherosclerosis and cardiovascular diseases is also described. Iron overload and ferroptosis are potential secondary causes of death in metabolic diseases. Moreover,
this review also provides potential novel approaches against ferroptosis based on recent research advances.
Conclusion:
Several controversies exist concerning mechanisms underlying ferroptotic cell death in metabolic diseases, particularly in atherosclerosis. Since ferroptosis participates in the progression of metabolic diseases such as non-alcoholic steatohepatitis (NASH), there is a need to develop new drugs targeting ferroptosis to alleviate such diseases.
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Affiliation(s)
- Yifei Le
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhijie Zhang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Cui Wang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Dezhao Lu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
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Fei W, Zhang Y, Ye Y, Li C, Yao Y, Zhang M, Li F, Zheng C. Bioactive metal-containing nanomaterials for ferroptotic cancer therapy. J Mater Chem B 2021; 8:10461-10473. [PMID: 33231601 DOI: 10.1039/d0tb02138e] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The clinical performance of the current cancer therapies is still far from satisfactory. The emerging ferroptosis-driven therapy strategies reignite the hope of chemotherapy in tumor treatment due to their incredible tumor suppression. Among ferroptosis-based cancer therapies, metal elements have attracted remarkable attention due to their inherent physicochemical properties in inducing ferroptosis of tumor cells quickly and strongly without complex cellular signal transduction. Although the discovery and applications of ferroptosis for tumor treatment have been discussed in many reviews, the unique advantages of metal-containing nanomaterials interfering ferroptotic cancer therapies (MIFCT) have seldom been mentioned. Here, we outline the latest advances of MIFCT comprehensively. Firstly, the functions of different kinds of metal elements or their ions are introduced to illustrate their advantages in MIFCT. Secondly, the emerging metal-containing nanomaterials that are designed to achieve ferroptosis-driven therapy are overviewed, including their ability to boost the Fenton or Fenton-like reaction for reactive oxygen species generation, act as hydrogen peroxide self-providers, damage the reducing system, and disturb cellular communication. Moreover, metal-containing nanomaterials with external energy conversion features for MIFCT are discussed. Finally, the future expectations and challenges of MIFCT for clinical cancer therapy are spotlighted.
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Affiliation(s)
- Weidong Fei
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Yue Zhang
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311400, China.
| | - Yiqing Ye
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Chaoqun Li
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311400, China.
| | - Yao Yao
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Meng Zhang
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
| | - Fanzhu Li
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311400, China.
| | - Caihong Zheng
- Department of Pharmacy, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China.
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Deng H, Yang Y, Zuo T, Fang T, Xu Y, Yang J, Zhang J, Shen Q. Multifunctional ZnO@CuS nanoparticles cluster synergize chemotherapy and photothermal therapy for tumor metastasis. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 34:102399. [PMID: 33864912 DOI: 10.1016/j.nano.2021.102399] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/03/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
The poor drug delivery and unsatisfying therapeutic effects remain to be the primary challenges for cancer therapy. Nanosystem that combines multiple functions into a single platform is an ideal strategy. Here, a smart drug delivery nanoplatform (Z@C-D/P) based on ZnO@CuS nanoparticles, loaded with doxorubicin (DOX) and pirfenidone (PFD) was constructed. Importantly, the β-CD-DMA and PEG-DMA could be activated in the mild acidic tumor microenvironment, then the nanosystem underwent charge reversal and PFD release. PFD could inhibit cancer-associated fibroblasts (CAFs) activation and enhance tumor penetration. And the residual nanostructure ZnO@CuS could trigger cascade amplified ROS generation to induce tumor cell death. The photothermal effect further strengthened the anti-tumor efficacy. Finally, the nanosystem showed remarkable inhibition of tumor growth (89.7%) and lung metastasis. The innovatively designed nanosystem integrating chemotherapy and photothermal effect would provide a promising strategy in breast cancer therapy.
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Affiliation(s)
- Huizi Deng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yifan Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Tiantian Zuo
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Tianxu Fang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yingxin Xu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
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55
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Attenuating senescence and dead cells accumulation as heart failure therapy: Break the communication networks. Int J Cardiol 2021; 334:72-85. [PMID: 33794236 DOI: 10.1016/j.ijcard.2021.03.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 02/03/2023]
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Zheng H, Jiang J, Xu S, Liu W, Xie Q, Cai X, Zhang J, Liu S, Li R. Nanoparticle-induced ferroptosis: detection methods, mechanisms and applications. NANOSCALE 2021; 13:2266-2285. [PMID: 33480938 DOI: 10.1039/d0nr08478f] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although ferroptosis is an iron-dependent cell death mechanism involved in the development of some severe diseases (e.g., Parkinsonian syndrome, stroke and tumours), the combination of nanotechnology with ferroptosis for the treatment of these diseases has attracted substantial research interest. However, it is challenging to differentiate nanoparticle-induced ferroptosis from other types of cell deaths (e.g., apoptosis, pyroptosis, and necrosis), elucidate the detailed mechanisms and identify the key property of nanoparticles responsible for ferroptotic cell deaths. Therefore, a summary of these aspects from current research on nano-ferroptosis is important and timely. In this review, we endeavour to summarize some convincing techniques that can be employed to specifically examine ferroptotic cell deaths. Then, we discuss the molecular initiating events of nanosized ferroptosis inducers and the cascade signals in cells, and therefore elaborate the ferroptosis mechanisms. Besides, the key physicochemical properties of nano-inducers are also discussed to acquire a fundamental understanding of nano-structure-activity relationships (nano-SARs) involved in ferroptosis, which may facilitate the design of nanomaterials to deliberately tune ferroptosis. Finally, future perspectives on the fundamental understanding of nanoparticle-induced ferroptosis and its applications are provided.
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Affiliation(s)
- Huizhen Zheng
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Jun Jiang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Shujuan Xu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Wei Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China
| | - Qianqian Xie
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Xiaoming Cai
- School of Public Health, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Jie Zhang
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, Shandong, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, China
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, Jiangsu, China.
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Kim YJ, Lee J, Im GB, Song J, Song J, Chung J, Yu T, Bhang SH. Dual Ion Releasing Nanoparticles for Modulating Osteogenic Cellular Microenvironment of Human Mesenchymal Stem Cells. MATERIALS (BASEL, SWITZERLAND) 2021; 14:412. [PMID: 33467673 PMCID: PMC7830414 DOI: 10.3390/ma14020412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/11/2022]
Abstract
In this study we developed a dual therapeutic metal ion-releasing nanoparticle for advanced osteogenic differentiation of stem cells. In order to enhance the osteogenic differentiation of human mesenchymal stem cells (hMSCs) and induce angiogenesis, zinc (Zn) and iron (Fe) were synthesized together into a nanoparticle with a pH-sensitive degradation property. Zn and Fe were loaded within the nanoparticles to promote early osteogenic gene expression and to induce angiogenic paracrine factor secretion for hMSCs. In vitro studies revealed that treating an optimized concentration of our zinc-based iron oxide nanoparticles to hMSCs delivered Zn and Fe ion in a controlled release manner and supported osteogenic gene expression (RUNX2 and alkaline phosphatase) with improved vascular endothelial growth factor secretion. Simultaneous intracellular release of Zn and Fe ions through the endocytosis of the nanoparticles further modulated the mild reactive oxygen species generation level in hMSCs without cytotoxicity and thus improved the osteogenic capacity of the stem cells. Current results suggest that our dual ion releasing nanoparticles might provide a promising platform for future biomedical applications.
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Affiliation(s)
- Yu-Jin Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (Y.-J.K.); (G.-B.I.); (J.S.)
| | - Jaeyoung Lee
- Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea; (J.L.); (J.S.)
| | - Gwang-Bum Im
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (Y.-J.K.); (G.-B.I.); (J.S.)
| | - Jihun Song
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (Y.-J.K.); (G.-B.I.); (J.S.)
| | - Jiwoo Song
- Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea; (J.L.); (J.S.)
- BK21 FOUR Integrated Engineering Program, Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea
| | - Jiyong Chung
- Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea; (J.L.); (J.S.)
- BK21 FOUR Integrated Engineering Program, Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea
| | - Taekyung Yu
- Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea; (J.L.); (J.S.)
- BK21 FOUR Integrated Engineering Program, Department of Chemical Engineering, Kyung Hee University, Youngin 17104, Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (Y.-J.K.); (G.-B.I.); (J.S.)
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58
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Chen C, Chen J, Wang Y, Liu Z, Wu Y. Ferroptosis drives photoreceptor degeneration in mice with defects in all-trans-retinal clearance. J Biol Chem 2020; 296:100187. [PMID: 33334878 PMCID: PMC7948481 DOI: 10.1074/jbc.ra120.015779] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/30/2020] [Accepted: 12/14/2020] [Indexed: 12/21/2022] Open
Abstract
The death of photoreceptor cells in dry age-related macular degeneration (AMD) and autosomal recessive Stargardt disease (STGD1) is closely associated with disruption in all-trans-retinal (atRAL) clearance in neural retina. In this study, we reveal that the overload of atRAL leads to photoreceptor degeneration through activating ferroptosis, a nonapoptotic form of cell death. Ferroptosis of photoreceptor cells induced by atRAL resulted from increased ferrous ion (Fe2+), elevated ACSL4 expression, system Xc- inhibition, and mitochondrial destruction. Fe2+ overload, tripeptide glutathione (GSH) depletion, and damaged mitochondria in photoreceptor cells exposed to atRAL provoked reactive oxygen species (ROS) production, which, together with ACSL4 activation, promoted lipid peroxidation and thereby evoked ferroptotic cell death. Moreover, exposure of photoreceptor cells to atRAL activated COX2, a well-accepted biomarker for ferroptosis onset. In addition to GSH supplement, inhibiting either Fe2+ by deferoxamine mesylate salt (DFO) or lipid peroxidation with ferrostatin-1 (Fer-1) protected photoreceptor cells from ferroptosis caused by atRAL. Abca4-/-Rdh8-/- mice exhibiting defects in atRAL clearance is an animal model for dry AMD and STGD1. We observed that ferroptosis was indeed present in neural retina of Abca4-/-Rdh8-/- mice after light exposure. More importantly, photoreceptor atrophy and ferroptosis in light-exposed Abca4-/-Rdh8-/- mice were effectively alleviated by intraperitoneally injected Fer-1, a selective inhibitor of ferroptosis. Our study suggests that ferroptosis is one of the important pathways of photoreceptor cell death in retinopathies arising from excess atRAL accumulation and should be pursued as a novel target for protection against dry AMD and STGD1.
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Affiliation(s)
- Chao Chen
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Department of Ophthalmology, Xiang'an Hospital of Xiamen University, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen City, Fujian, China
| | - Jingmeng Chen
- School of Medicine, Xiamen University, Xiamen City, Fujian, China
| | - Yan Wang
- Department of Ophthalmology, Shenzhen Hospital, Southern Medical University, Shenzhen City, Guangdong, China
| | - Zuguo Liu
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Department of Ophthalmology, Xiang'an Hospital of Xiamen University, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen City, Fujian, China
| | - Yalin Wu
- Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, Department of Ophthalmology, Xiang'an Hospital of Xiamen University, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen City, Fujian, China; Xiamen Eye Center of Xiamen University, Xiamen City, Fujian, China; Shenzhen Research Institute of Xiamen University, Shenzhen City, Guangdong, China.
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59
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Chen S, Chen Y, Zhang Y, Kuang X, Liu Y, Guo M, Ma L, Zhang D, Li Q. Iron Metabolism and Ferroptosis in Epilepsy. Front Neurosci 2020; 14:601193. [PMID: 33424539 PMCID: PMC7793792 DOI: 10.3389/fnins.2020.601193] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022] Open
Abstract
Epilepsy is a disease characterized by recurrent, episodic, and transient central nervous system (CNS) dysfunction resulting from an excessive synchronous discharge of brain neurons. It is characterized by diverse etiology, complex pathogenesis, and difficult treatment. In addition, most epileptic patients exhibit social cognitive impairment and psychological impairment. Iron is an essential trace element for human growth and development and is also involved in a variety of redox reactions in organisms. However, abnormal iron metabolism is associated with several neurological disorders, including hemorrhagic post-stroke epilepsy and post-traumatic epilepsy (PTE). Moreover, ferroptosis is also considered a new form of regulation of cell death, which is attributed to severe lipid peroxidation caused by the production of reactive oxygen species (ROS) and iron overload found in various neurological diseases, including epilepsy. Therefore, this review summarizes the study on iron metabolism and ferroptosis in epilepsy, in order to elucidate the correlation between iron and epilepsy. It also provides a novel method for the treatment, prevention, and research of epilepsy, to control epileptic seizures and reduce nerve injury after the epileptic seizure.
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Affiliation(s)
- Shuang Chen
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Yongmin Chen
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Yukang Zhang
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Xi Kuang
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Hainan Health Vocational College, Haikou, China
| | - Yan Liu
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Department of Rehabilitation, Hainan Cancer Hospital, Haikou, China
| | - Meiwen Guo
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Lin Ma
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Daqi Zhang
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Qifu Li
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China
- Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
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60
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Castillo RR, Vallet-Regí M. Emerging Strategies in Anticancer Combination Therapy Employing Silica-Based Nanosystems. Biotechnol J 2020; 16:e1900438. [PMID: 33079451 DOI: 10.1002/biot.201900438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/30/2020] [Indexed: 12/22/2022]
Abstract
Combination therapy has emerged as one of the most promising approaches for cancer treatment. However, beyond remotely-triggered therapies that require advanced infrastructures and optimization, new combination therapies based on internally triggered cell-killing effects have also demonstrated promising therapeutic profiles. In this revision, the focus is on self-triggered strategies able to improve the therapeutic effect of drug delivery nanosystems. As reviewed, ferroptosis, hypoxia, and immunotherapy show potency enough to treat satisfactorily tumors in vivo. However, the interest of combining those with chemotherapeutics, especially with carriers based on mesoporous silica, has provided a new generation of therapeutic nanomedicines with potential enough to achieve complete tumor remission in murine models.
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Affiliation(s)
- Rafael R Castillo
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, 28040, Spain.,Centro de Investigación Biomédica en Red-CIBER, Madrid, 28029, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre-imas12, Madrid, 28041, Spain
| | - Maria Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, Madrid, 28040, Spain.,Centro de Investigación Biomédica en Red-CIBER, Madrid, 28029, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre-imas12, Madrid, 28041, Spain
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61
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Long X, Luo YH, Zhang Z, Zheng C, Zeng C, Bi Y, Zhou C, Rittmann BE, Waite TD, Herckes P, Westerhoff P. The Nature and Oxidative Reactivity of Urban Magnetic Nanoparticle Dust Provide New Insights into Potential Neurotoxicity Studies. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:10599-10609. [PMID: 32786591 DOI: 10.1021/acs.est.0c01962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The recent discovery of magnetic nanoparticles (NPs) in human brain tissue has raised concerns regarding their source and neurotoxicity. As previous studies have suggested that magnetite in urban dust may be the source, we collected urban magnetic dust and thoroughly characterized the nature of ambient urban magnetic dust particles prior to investigating their neurotoxic potential. In addition to magnetite, magnetic dust contained an abundance (∼40%) of elemental iron (Fe0). The coexistence of magnetite and elemental iron was found in magnetic dust particles of inhalable (<10 μm) and nanoscale (<200 nm) size ranges with these particles small enough to enter the human brain via the respiratory tract and olfactory bulbs. The magnetic dust also contained nonferrous water-soluble metals (particularly Cu) that can induce formation of reactive oxygen species (ROS). Previous studies used engineered pure-magnetite for in vitro ROS studies. However, while magnetite was present in all magnetic dust particles collected, engineered pure-magnetite was relatively unreactive and contributed minimally to the generation of ROS. We fill a critical knowledge gap between exposure to heterogeneous ambient iron-particles and in vitro experiments with engineered versus ambient, incidental iron-bearing nanoscale minerals. Our work points to the need to further investigate the presence and properties of magnetic NPs in respirable dust with respect to their potential role in neurodegeneration.
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Affiliation(s)
- Xiangxing Long
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - Zhaobo Zhang
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Chenwei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - Chao Zeng
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Yuqiang Bi
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - T David Waite
- Water Research Center, School of Civil and Environmental Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Pierre Herckes
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Paul Westerhoff
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
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