151
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Peng M, Wang J, Li Z, Ren G, Li K, Gu C, Lin Y. Three-dimensional flexible and stretchable gold foam scaffold for real-time electrochemical sensing in cells and in vivo. Talanta 2023; 253:123891. [PMID: 36095938 DOI: 10.1016/j.talanta.2022.123891] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 12/13/2022]
Abstract
Compared with typical two-dimensional electrodes, the three-dimensional (3D) cell culture platform can simulate the real cell survival environment for cell growth to accurately reproduce cell functions. Moreover, considering that living cells are exposed to various of mechanical force in the microenvironment, the construction of 3D electrodes with excellent flexible, stretchable, and biocompatibility is of great significance to real-time monitor mechanically evoked biomolecule release from cells. Herein, we demonstrated a straightforward and effective three-step approach to fabricate three-dimensional flexible and stretchable gold foam scaffold (3D Au foam scaffold) for construction of 3D cell culture integrated electrochemical sensing platform. The excellent biological and electrical properties of Au nanostructures and porous networks of the 3D scaffold endow the platform with desirable biocompatibility and sensitive electrochemical sensing performance. As a proof of concept, the 3D Au foam scaffold functionalized with cobalt based nanocubes (Co NCs/Au foam scaffold) was validated to provide 3D culture for human umbilical vein endothelial cells (HUVECs), and synchronously real-time monitor superoxide anion (O2•-) released by HUVECs under mechanical stretching. Furthermore, 3-mercaptopropionic acid (3-MPA) modified 3D Au foam (3-MPA/Au foam scaffold) was successfully used for real-time monitoring of catecholamines in rat brain. The results demonstrate the great potential of this 3D Au foam scaffold for real-time electrochemical monitoring biomolecules in vitro and in vivo, providing convenience for future research on mechanotransduction relevant processes.
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Affiliation(s)
- Meihong Peng
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Jialu Wang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Zaoming Li
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Guoyuan Ren
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Kai Li
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Chaoyue Gu
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Yuqing Lin
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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152
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Li Z, Tan M, Lian N, Ke F, Zhang F, Wang C, Zhang Z. A cyanine carbazole oxime fluorescent probe selectively detects hypochlorite in Hi5 cells and C. elegans. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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153
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Wang Z, Liu P, Ye P, Dai S, Liu L, Yang P. Effects of semiquinone-rich surface on the behaviors of vascular cells. J Biomater Appl 2023; 37:1195-1204. [PMID: 36633217 DOI: 10.1177/08853282231151230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Dopamine has been widely used for surface modification of cardiovascular medical devices as it forms films on most substrates that provide functional groups for surface chemical modification. However, under oxidative stress, the phenolic hydroxyl group on dopamine can undergo reversible transformation into phenol-semiquinone-quinone, which can cause cytotoxicity and immunotoxicity. In this study, we measured the effects of semiquinone on the behavior of vascular wall cells and inflammatory cells under oxidative stress via ultraviolet irradiation with a hydrogen peroxide diluent. Na2S2O3 was used as a stabilizer to obtain a semiquinone-rich poly-dopamine film, then phenol-semiquinone-quinone ratio on its surface was evaluated at three irradiation-oxidation time points. We found that the poly-dopamine film with ultraviolet irradiation in hydrogen peroxide solution for 15 min had the highest semiquinone occupancy of 19.18%. In the experimental group irradiated for 15 min, endothelial cells were cultured statically for 3 days and the number of surface adherent endothelial cells in the group with added semiquinone stabilizer was reduced to 73% of that in the group without stabilizer, indicating that semiquinone rich surface inhibits adhesion and proliferation of endothelial cells; Smooth muscle cells were cultured statically for 3 days, and the number of adherent smooth muscle on surfaces without stabilizer was reduced to 75% of that on surfaces with stabilizer added, indicating that semiquinone rich surfaces promote smooth muscle proliferation. These results demonstrate that semiquinone can adversely affect the repair effect after implantation of cardiovascular materials. Therefore, our study provides a reference for the application and optimization of dopamine in cardiovascular implant materials.
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Affiliation(s)
- Zhixing Wang
- Institute of Biomaterials and Surface Engineering Key Lab. for Advanced Technologies of Materials, Ministry of Education, 56711Southwest Jiaotong University, Chengdu, China
| | - Peng Liu
- Institute of Biomaterials and Surface Engineering Key Lab. for Advanced Technologies of Materials, Ministry of Education, 56711Southwest Jiaotong University, Chengdu, China
| | - Peng Ye
- Institute of Biomaterials and Surface Engineering Key Lab. for Advanced Technologies of Materials, Ministry of Education, 56711Southwest Jiaotong University, Chengdu, China
| | - Sheng Dai
- Institute of Biomaterials and Surface Engineering Key Lab. for Advanced Technologies of Materials, Ministry of Education, 56711Southwest Jiaotong University, Chengdu, China
| | - LuYing Liu
- Institute of Biomaterials and Surface Engineering Key Lab. for Advanced Technologies of Materials, Ministry of Education, 56711Southwest Jiaotong University, Chengdu, China
| | - Ping Yang
- Institute of Biomaterials and Surface Engineering Key Lab. for Advanced Technologies of Materials, Ministry of Education, 56711Southwest Jiaotong University, Chengdu, China
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154
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Wang H, Zhang C, Jiang Z, Xu L, Liu Z. Fluorescent phenothiazine-fused boron complexes for ratiometric hypochlorite imaging. Dalton Trans 2023; 52:1393-1398. [PMID: 36637140 DOI: 10.1039/d2dt03824b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Fluorescent hypochlorite probes with ratiometric imaging ability are highly desirable for imaging hypochlorite in biological systems. However, it is still challenging to develop new scaffolds for these probes. In this study, we demonstrate that phenothiazine-fused boron complexes are promising scaffolds for the design of ratiometric fluorescent hypochlorite probes. The synthesized complexes based on the scaffold show ultrafast and ratiometric absorption/fluorescence changes for hypochlorite. We also developed an endoplasmic reticulum-targeting probe and demonstrated that it has excellent real-time imaging ability for both endogenous and exogenous hypochlorite in the endoplasmic reticulum of living cells.
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Affiliation(s)
- Hong Wang
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Changli Zhang
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, China
| | - Zhiyong Jiang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Li Xu
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhipeng Liu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China. .,Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
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155
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Domán A, Dóka É, Garai D, Bogdándi V, Balla G, Balla J, Nagy P. Interactions of reactive sulfur species with metalloproteins. Redox Biol 2023; 60:102617. [PMID: 36738685 PMCID: PMC9926313 DOI: 10.1016/j.redox.2023.102617] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023] Open
Abstract
Reactive sulfur species (RSS) entail a diverse family of sulfur derivatives that have emerged as important effector molecules in H2S-mediated biological events. RSS (including H2S) can exert their biological roles via widespread interactions with metalloproteins. Metalloproteins are essential components along the metabolic route of oxygen in the body, from the transport and storage of O2, through cellular respiration, to the maintenance of redox homeostasis by elimination of reactive oxygen species (ROS). Moreover, heme peroxidases contribute to immune defense by killing pathogens using oxygen-derived H2O2 as a precursor for stronger oxidants. Coordination and redox reactions with metal centers are primary means of RSS to alter fundamental cellular functions. In addition to RSS-mediated metalloprotein functions, the reduction of high-valent metal centers by RSS results in radical formation and opens the way for subsequent per- and polysulfide formation, which may have implications in cellular protection against oxidative stress and in redox signaling. Furthermore, recent findings pointed out the potential role of RSS as substrates for mitochondrial energy production and their cytoprotective capacity, with the involvement of metalloproteins. The current review summarizes the interactions of RSS with protein metal centers and their biological implications with special emphasis on mechanistic aspects, sulfide-mediated signaling, and pathophysiological consequences. A deeper understanding of the biological actions of reactive sulfur species on a molecular level is primordial in H2S-related drug development and the advancement of redox medicine.
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Affiliation(s)
- Andrea Domán
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary
| | - Éva Dóka
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary
| | - Dorottya Garai
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary,Kálmán Laki Doctoral School, University of Debrecen, 4012, Debrecen, Hungary
| | - Virág Bogdándi
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary
| | - György Balla
- Kálmán Laki Doctoral School, University of Debrecen, 4012, Debrecen, Hungary,Department of Pediatrics, Faculty of Medicine, University of Debrecen, 4032, Debrecen, Hungary,ELKH-UD Vascular Pathophysiology Research Group, 11003, University of Debrecen, 4012, Debrecen, Hungary
| | - József Balla
- Kálmán Laki Doctoral School, University of Debrecen, 4012, Debrecen, Hungary,ELKH-UD Vascular Pathophysiology Research Group, 11003, University of Debrecen, 4012, Debrecen, Hungary,Department of Nephrology, Institute of Internal Medicine, Faculty of Medicine, University of Debrecen, 4012, Debrecen, Hungary
| | - Péter Nagy
- Department of Molecular Immunology and Toxicology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122, Budapest, Hungary; Department of Anatomy and Histology, ELKH Laboratory of Redox Biology, University of Veterinary Medicine, 1078, Budapest, Hungary; Chemistry Institute, University of Debrecen, 4012, Debrecen, Hungary.
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156
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Putro PA, Maddu A, Hardhienata H, Isnaeni I, Ahmad F, Dipojono HK. Revealing the incorporation of an NH 2 group into the edge of carbon dots for H 2O 2 sensing via the C-N⋯H hydrogen bond interaction. Phys Chem Chem Phys 2023; 25:2606-2617. [PMID: 36602293 DOI: 10.1039/d2cp04097b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We investigated hydrogen peroxide (H2O2) sensing on NH2-functionalized carbon dots (Cdots) for three different -NH2 positions, and the N atom was found to be the active site using a quantum computational approach. B3LYP and 6-31G(d,p) were used for density functional theory (DFT) ground state calculations, whereas CAM-B3LYP and the same basis set were used in time-dependent density functional theory (TD-DFT) excited state calculations. Structural optimization showed that the H2O2 is chemisorbed on 1-sim via a C-N⋯H hydrogen bond interaction with an adsorption energy of -10.61 kcal mol-1. Mulliken atomic charge distributions and electrostatic potential (ESP) analysis were both used to determine reactivity of the molecules at the atomic level. For in-depth analysis of the ground states, we utilized Frontier molecular orbital (FMO) theory, quantum theory of atoms in molecules (QTAIM), and non-covalent interaction (NCI) index analysis. In addition, we also present UV-vis absorption spectra and charge transfer lengths to understand the mechanism of H2O2 sensing in excited states. Based on the molecular and electronic properties of the NH2-Cdots, it was shown that 1-sim is a potential candidate for use as an electrochemical sensor for H2O2 sensing. Whereas 3-sim is believed to be a potential candidate for use as an optical sensor of H2O2 based on the UV-vis characteristics via photoinduced charge transfer.
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Affiliation(s)
- Permono Adi Putro
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, 16680, Indonesia. .,Department of Physics, Faculty of Science, Universitas Mandiri, Subang, 41211, Indonesia
| | - Akhiruddin Maddu
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, 16680, Indonesia.
| | - Hendradi Hardhienata
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, 16680, Indonesia.
| | - Isnaeni Isnaeni
- Research Center for Photonics, National Research and Innovation Agency, Banten, 15314, Indonesia
| | - Faozan Ahmad
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, 16680, Indonesia.
| | - Hermawan Kresno Dipojono
- Department of Engineering Physics, Faculty of Industrial Technology, Bandung Institute of Technology, Bandung, 40132, Indonesia.,Research Center for Nanoscience and Nanotechnology, Bandung Institute of Technology, Bandung, 40132, Indonesia
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157
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Roy B, Shieh M, Xu S, Ni X, Xian M. Single-Component Photo-Responsive Template for the Controlled Release of NO and H 2S 2. J Am Chem Soc 2023; 145:277-287. [PMID: 36548022 DOI: 10.1021/jacs.2c09914] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Redox signaling molecules include a number of reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive sulfur species (RSS). These molecules work collectively in the regulation of many physiological processes. Understanding the crosstalk mechanisms in these signaling molecules is important but challenging. The development of donor compounds of ROS/RNS/RSS will aid the advances in this field. While many donors that can release one ROS/RNS/RSS have been developed, dual donors that can release two signaling species and facilitate their crosstalk studies are still very rare. Those limited examples lack the ability to precisely control the timing of two releases. In this work, a 2-methoxy-6-naphthacyl-derived tertiary SNO compound, Naph-SNO, was designed and evaluated as the dual donor for NO and H2S2. The 2-methoxy-6-naphthacyl structure was demonstrated to be a novel photoremovable protecting group that could directly uncage C-S bonds. Under the irradiation of lights with different wavelengths (visible or UV), Naph-SNO could release NO and H2S2 in a stepwise manner, or simultaneously (i.e., likely producing the crosstalk product HSNO/HSSNO). In addition, the release of payloads from the donor also produced an end product with blue fluorescence. Therefore, the release process could be easily monitored in "real time." This controllable photo-triggered release strategy has the potential to be used in the design of other RNS/RSS dual donors.
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Affiliation(s)
- Biswajit Roy
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Meg Shieh
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Shi Xu
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Xiang Ni
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
| | - Ming Xian
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States
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158
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Chemogenetic emulation of intraneuronal oxidative stress affects synaptic plasticity. Redox Biol 2023; 60:102604. [PMID: 36640726 PMCID: PMC9852792 DOI: 10.1016/j.redox.2023.102604] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/11/2022] [Accepted: 01/07/2023] [Indexed: 01/11/2023] Open
Abstract
Oxidative stress, a state of disrupted redox signaling, reactive oxygen species (ROS) overproduction, and oxidative cell damage, accompanies numerous brain pathologies, including aging-related dementia and Alzheimer's disease, the most common neurodegenerative disorder of the elderly population. However, a causative role of neuronal oxidative stress in the development of aging-related cognitive decline and neurodegeneration remains elusive because of the lack of approaches for modeling isolated oxidative injury in the brain. Here, we present a chemogenetic approach based on the yeast flavoprotein d-amino acid oxidase (DAAO) for the generation of intraneuronal hydrogen peroxide (H2O2). To validate this chemogenetic tool, DAAO and HyPer7, an ultrasensitive genetically encoded H2O2 biosensor, were targeted to neurons. Changes in the fluorescence of HyPer7 upon treatment of neurons expressing DAAO with d-norvaline (D-Nva), a DAAO substrate, confirmed chemogenetically induced production of intraneuornal H2O2. Then, using the verified chemogenetic tool, we emulated isolated intraneuronal oxidative stress in acute brain slices and, using electrophysiological recordings, revealed that it does not alter basal synaptic transmission and the probability of neurotransmitter release from presynaptic terminals but reduces long-term potentiation (LTP). Moreover, treating neurons expressing DAAO with D-Nva via the patch pipette also decreases LTP. This observation indicates that isolated oxidative stress affects synaptic plasticity at single cell level. Our results broaden the toolset for studying normal redox regulation in the brain and elucidating the role of oxidative stress to the pathogenesis of cognitive aging and the early stages of aging-related neurodegenerative diseases. The proposed approach is useful for identification of early markers of neuronal oxidative stress and may be used in screens of potential antioxidants effective against neuronal oxidative injury.
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159
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Oxidative Stress in Age-Related Neurodegenerative Diseases: An Overview of Recent Tools and Findings. Antioxidants (Basel) 2023; 12:antiox12010131. [PMID: 36670993 PMCID: PMC9854433 DOI: 10.3390/antiox12010131] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 01/06/2023] Open
Abstract
Reactive oxygen species (ROS) have been described to induce a broad range of redox-dependent signaling reactions in physiological conditions. Nevertheless, an excessive accumulation of ROS leads to oxidative stress, which was traditionally considered as detrimental for cells and organisms, due to the oxidative damage they cause to biomolecules. During ageing, elevated ROS levels result in the accumulation of damaged proteins, which may exhibit altered enzymatic function or physical properties (e.g., aggregation propensity). Emerging evidence also highlights the relationship between oxidative stress and age-related pathologies, such as protein misfolding-based neurodegenerative diseases (e.g., Parkinson's (PD), Alzheimer's (AD) and Huntington's (HD) diseases). In this review we aim to introduce the role of oxidative stress in physiology and pathology and then focus on the state-of-the-art techniques available to detect and quantify ROS and oxidized proteins in live cells and in vivo, providing a guide to those aiming to characterize the role of oxidative stress in ageing and neurodegenerative diseases. Lastly, we discuss recently published data on the role of oxidative stress in neurological disorders.
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160
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Ibáñez Gaspar V, McMorrow T. The Curcuminoid EF24 in Combination with TRAIL Reduces Human Renal Cancer Cell Migration by Decreasing MMP-2/MMP-9 Activity through a Reduction in H 2O 2. Int J Mol Sci 2023; 24:ijms24021043. [PMID: 36674555 PMCID: PMC9863498 DOI: 10.3390/ijms24021043] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023] Open
Abstract
Cancer cells present high levels of oxidative stress, and although an increase in reactive oxygen species (ROS), such as H2O2, can lead to apoptosis, it can also induce cell invasion and metastasis. As the increase in ROS can lead to an increase in the expression of MMP-2 and MMP-9, thus causing the degradation of the extracellular matrix, an increase in the ROS H2O2 might have an impact on MMP-2/MMP-9 activity. The natural compound curcumin has shown some anticancer effects, although its bioavailability hinders its therapeutic potential. However, curcumin and its analogues were shown to resensitize kidney cancer cells to TNF-related apoptosis-inducing ligand (TRAIL)-induced apoptosis. This study shows that the curcuminoid EF24 in combination with TRAIL increases peroxidase activity in the renal adenocarcinoma cell line ACHN, reducing the level of intracellular H2O2 and MMP-2/MMP-9 activity, a mechanism that is also observed after treatment with curcumin and TRAIL.
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161
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Barnum TP, Coates JD. Chlorine redox chemistry is widespread in microbiology. THE ISME JOURNAL 2023; 17:70-83. [PMID: 36202926 PMCID: PMC9751292 DOI: 10.1038/s41396-022-01317-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 11/07/2022]
Abstract
Chlorine is abundant in cells and biomolecules, yet the biology of chlorine oxidation and reduction is poorly understood. Some bacteria encode the enzyme chlorite dismutase (Cld), which detoxifies chlorite (ClO2-) by converting it to chloride (Cl-) and molecular oxygen (O2). Cld is highly specific for chlorite and aside from low hydrogen peroxide activity has no known alternative substrate. Here, we reasoned that because chlorite is an intermediate oxidation state of chlorine, Cld can be used as a biomarker for oxidized chlorine species. Cld was abundant in metagenomes from various terrestrial habitats. About 5% of bacterial and archaeal genera contain a microorganism encoding Cld in its genome, and within some genera Cld is highly conserved. Cld has been subjected to extensive horizontal gene transfer. Genes found to have a genetic association with Cld include known genes for responding to reactive chlorine species and uncharacterized genes for transporters, regulatory elements, and putative oxidoreductases that present targets for future research. Cld was repeatedly co-located in genomes with genes for enzymes that can inadvertently reduce perchlorate (ClO4-) or chlorate (ClO3-), indicating that in situ (per)chlorate reduction does not only occur through specialized anaerobic respiratory metabolisms. The presence of Cld in genomes of obligate aerobes without such enzymes suggested that chlorite, like hypochlorous acid (HOCl), might be formed by oxidative processes within natural habitats. In summary, the comparative genomics of Cld has provided an atlas for a deeper understanding of chlorine oxidation and reduction reactions that are an underrecognized feature of biology.
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Affiliation(s)
- Tyler P Barnum
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA
| | - John D Coates
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, 94720, USA.
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162
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Tarpley M, Chen Y, Bhakat KK. Genome-Wide Binding Analysis of DNA Repair Protein APE1 in Tumor Cells by ChIP-Seq. Methods Mol Biol 2023; 2701:243-252. [PMID: 37574487 DOI: 10.1007/978-1-0716-3373-1_16] [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: 08/15/2023]
Abstract
The base excision repair (BER) is the primary damage repair pathway for repairing most of the endogenous DNA damage including oxidative base lesions, apurinic/apyrimidinic (AP) sites, and single-strand breaks (SSBs) in the genome. Repair of these damages in cells relies on sequential recruitment and coordinated actions of multiple DNA repair enzymes, which include DNA glycosylases (such as OGG1), AP-endonucleases (APE1), DNA polymerases, and DNA ligases. APE1 plays a key role in the BER pathway by repairing the AP sites and SSBs in the genome. Several methods have been developed to generate a map of endogenous AP sites or SSBs in the genome and the binding of DNA repair proteins. In this chapter, we describe detailed approaches to map genome-wide occupancy or enrichment of APE1 in human cells using chromatin immunoprecipitation followed by next-generation sequencing (ChIP-seq). Further, we discuss standard bioinformatics approaches for analyzing ChIP-seq data to identify APE1 enrichment or binding peaks in the genome.
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Affiliation(s)
- Mason Tarpley
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yingling Chen
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Kishor K Bhakat
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA.
- Fred and Pamela Buffett Cancer Center, Omaha, NE, USA.
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163
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Tuli HS, Kaur J, Vashishth K, Sak K, Sharma U, Choudhary R, Behl T, Singh T, Sharma S, Saini AK, Dhama K, Varol M, Sethi G. Molecular mechanisms behind ROS regulation in cancer: A balancing act between augmented tumorigenesis and cell apoptosis. Arch Toxicol 2023; 97:103-120. [PMID: 36443493 DOI: 10.1007/s00204-022-03421-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/14/2022] [Indexed: 11/29/2022]
Abstract
ROS include hydroxyl radicals (HO.), superoxide (O2..), and hydrogen peroxide (H2O2). ROS are typically produced under physiological conditions and play crucial roles in living organisms. It is known that ROS, which are created spontaneously by cells through aerobic metabolism in mitochondria, can have either a beneficial or detrimental influence on biological systems. Moderate levels of ROS can cause oxidative damage to proteins, DNA and lipids, which can aid in the pathogenesis of many disorders, including cancer. However, excessive concentrations of ROS can initiate programmed cell death in cancer. Presently, a variety of chemotherapeutic drugs and herbal agents are being investigated to induce ROS-mediated cell death in cancer. Therefore, preserving ROS homeostasis is essential for ensuring normal cell development and survival. On account of a significant association of ROS levels at various concentrations with carcinogenesis in a number of malignancies, further studies are needed to determine the underlying molecular mechanisms and develop the possibilities for intervening in these processes.
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Affiliation(s)
- Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Jagjit Kaur
- Graduate School of Biomedical Engineering, Faculty of Engineering, The University of New South Wales, Sydney, 2052, Australia
| | - Kanupriya Vashishth
- Advance Cardiac Centre Department of Cardiology, PGIMER, Chandigarh, 160012, India
| | | | - Ujjawal Sharma
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India.,Department of Human Genetics and Molecular Medicine, School of Health Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Renuka Choudhary
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Tapan Behl
- Department of Pharmacology, School of Health Sciences & Technology (SoHST), University of Petroleum and Energy Studies, Bidholi, Dehradun, Uttarakhand, 248007, India
| | - Tejveer Singh
- Translanatal Oncology Laboratory, Department of Zoology, Hansraj College, Delhi University, New Delhi, 110007, India
| | - Sheetu Sharma
- Department of Pharmacovigilace and Clinical Research, Chitkara University, Rajpura, 140401, India
| | - Adesh K Saini
- Department of Biotechnology, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, 133207, India
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Mugla, 48000, Turkey
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore.
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164
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Schunk HC, Austin MJ, Taha BZ, McClellan MS, Suggs LJ, Rosales AM. Oxidative Degradation of Sequence-Defined Peptoid Oligomers. MOLECULAR SYSTEMS DESIGN & ENGINEERING 2023; 8:92-104. [PMID: 37123435 PMCID: PMC10147340 DOI: 10.1039/d2me00179a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Due to their N-substitution, peptoids are generally regarded as resistant to biological degradation, such as enzymatic and hydrolytic mechanisms. This stability is an especially attractive feature for therapeutic development and is a selling point of many previous biological studies. However, another key mode of degradation remains to be fully explored, namely oxidative degradation mediated by reactive oxygen and nitrogen species (ROS/RNS). ROS and RNS are biologically relevant in numerous contexts where biomaterials may be present, thus, improving understanding of peptoid oxidative susceptibility is crucial to exploit their full potential in the biomaterials field, where an oxidatively-labile but enzymatically stable molecule can offer attractive properties. Toward this end, we demonstrate a fundamental characterization of sequence-defined peptoid chains in the presence of chemically generated ROS, as compared to ROS-susceptible peptides such as proline and lysine oligomers. Lysine oligomers showed the fastest degradation rates to ROS and the enzyme trypsin. Peptoids degraded in metal catalyzed oxidation conditions at rates on par with poly(prolines), while maintaining resistance to enzymatic degradation. Furthermore, lysine-containing peptide-peptoid hybrid molecules showed tunability in both ROS-mediated and enzyme-mediated degradation, with rates intermediate to lysine and peptoid oligomers. When lysine-mimetic side-chains were incorporated into a peptoid backbone, the rate of degradation matched that of the lysine peptide oligomers, but remained resistant to enzymatic degradation. These results expand understanding of peptoid degradation to oxidative and enzymatic mechanisms, and demonstrate the potential for peptoid incorporation into materials where selectivity towards oxidative degradation is necessary, or directed enzymatic susceptibility is desired.
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Affiliation(s)
- Hattie C. Schunk
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, United States
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Mariah J. Austin
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Bradley Z. Taha
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Matthew S. McClellan
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Laura J. Suggs
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712, United States
| | - Adrianne M. Rosales
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, United States
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165
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The Influence of Solvents and Colloidal Particles on the Efficiency of Molecular Antioxidants. Antioxidants (Basel) 2022; 12:antiox12010099. [PMID: 36670961 PMCID: PMC9855148 DOI: 10.3390/antiox12010099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
The radical scavenging activity of three molecular antioxidants (trolox, rutin and ellagic acid) was investigated in different solvents with and without added polymer-based colloidal particles (SL-IP-2). Rutin and ellagic acid showed poor solubility in water, preventing the accurate measurement of the effective antioxidant concentration values, which were determined in ethanol/water (EtOH/H2O) mixtures. The presence of trolox and rutin changed neither the surface charge properties nor the size of SL-IP-2 in these solvents, while significant adsorption on SL-IP-2 was observed for ellagic acid leading to overcharging and rapid particle aggregation at appropriately high antioxidant concentrations in EtOH/H2O. The differences in the radical scavenging capacity of trolox and ellagic acid that was observed in homogeneous solutions using water or EtOH/H2O as solvents vanished in the presence of the particles. Rutin lost its activity after addition of SL-IP-2 due to the larger molecular size and lower exposure of the functional groups to the substrate upon interaction with the particles. The obtained results shed light on the importance of the type of solvent and particle-antioxidant interfacial effects on the radical decomposition ability of molecular antioxidants, which is of crucial importance in industrial processes involving heterogeneous systems.
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166
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Targets, Mechanisms and Cytotoxicity of Half-Sandwich Ir(III) Complexes Are Modulated by Structural Modifications on the Benzazole Ancillary Ligand. Cancers (Basel) 2022; 15:cancers15010107. [PMID: 36612104 PMCID: PMC9818021 DOI: 10.3390/cancers15010107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
Cancers are driven by multiple genetic mutations but evolve to evade treatments targeting specific mutations. Nonetheless, cancers cannot evade a treatment that targets mitochondria, which are essential for tumor progression. Iridium complexes have shown anticancer properties, but they lack specificity for their intracellular targets, leading to undesirable side effects. Herein we present a systematic study on structure-activity relationships of eight arylbenzazole-based Iridium(III) complexes of type [IrCl(Cp*)], that have revealed the role of each atom of the ancillary ligand in the physical chemistry properties, cytotoxicity and mechanism of biological action. Neutral complexes, especially those bearing phenylbenzimidazole (HL1 and HL2), restrict the binding to DNA and albumin. One of them, complex 1[C,NH-Cl], is the most selective one, does not bind DNA, targets exclusively the mitochondria, disturbs the mitochondria membrane permeability inducing proton leak and increases ROS levels, triggering the molecular machinery of regulated cell death. In mice with orthotopic lung tumors, the administration of complex 1[C,NH-Cl] reduced the tumor burden. Cancers are more vulnerable than normal tissues to a treatment that harnesses mitochondrial dysfunction. Thus, complex 1[C,NH-Cl] characterization opens the way to the development of new compounds to exploit this vulnerability.
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167
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Mao H, Wen Y, Yu Y, Li H, Wang J, Sun B. Bioinspired nanocatalytic tumor therapy by simultaneous reactive oxygen species generation enhancement and glutamine pathway-mediated glutathione depletion. J Mater Chem B 2022; 11:131-143. [PMID: 36484247 DOI: 10.1039/d2tb02194c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An insufficient intracellular H2O2 level and overexpressed glutathione (GSH) are still the major challenges for effective chemodynamic therapy (CDT). Inspired by the unique glutamine metabolism pathway in cancer cells, herein, intelligent nanocatalytic theranostics is used to enhance intracellular reactive oxygen species (ROS) accumulation via the production of H2O2 by a biomimetic nanozyme, and simultaneously reduce ROS consumption via the depression of GSH synthesis by the glutamine metabolic inhibitor. In this reactor, nano-sized Au and Fe3O4 coloaded dendritic mesoporous silica nanoparticles (DMSN-Au-Fe3O4) serve as the bifunctional nanozyme, where intracellular glucose is catalyzed into H2O2 by the glucose oxidase-mimicking Au nanoparticles and then immediately transformed into ˙OH by the peroxidase-like Fe3O4 nanoparticles. Then, CB839, the glutaminase (GLS) inhibitor, is grafted on the nanozyme, blocking the glutamine pathway and GSH biosynthesis. As a result, the as-designed nanoplatform with a three-pronged integration of Au-mediated H2O2 self-supply, Fe3O4-triggered Fenton-like reaction, and glutamine pathway-mediated GSH depletion significantly boosts the CDT efficacy, achieving remarkable and specific antitumor properties both in vitro and in vivo. This work not only paves a new way for rationally designing multi-functional nanozymes for achieving high therapeutic efficacy, but also provides new insights into the construction of bioinspired synergetic therapy by combining CDT and a key anticancer pathway.
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Affiliation(s)
- Huijia Mao
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China.
| | - Yangyang Wen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Yonghui Yu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China.
| | - Hongyan Li
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China.
| | - Jing Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China.
| | - Baoguo Sun
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), School of Food and Health, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China.
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168
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Huang W, Du X, Zhang C, Zhang S, Zhang J, Yang XF. Rational Design of a Dual-Channel Fluorescent Probe for the Simultaneous Imaging of Hypochlorous Acid and Peroxynitrite in Living Organisms. Anal Chem 2022; 94:17485-17493. [PMID: 36480597 DOI: 10.1021/acs.analchem.2c03661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hypochlorous acid (HOCl) and peroxynitrite (ONOO-) are two important highly reactive oxygen/nitrogen species, which commonly coexist in biosystems and play pivotal roles in many physiological and pathological processes. To investigate their function and correlations, it is urgently needed to construct chemical tools that can track the production of HOCl and ONOO- in biological systems with distinct fluorescence signals. Here, we found that the coumarin fluorescence of coumarin-benzopyrylium (CB) hydrazides (spirocyclic form) is dim, and their fluorescence properties are controlled by their benzopyran moiety via an intramolecular photo-induced electron transfer (PET) process. Based on this mechanism, we report the development of a fluorescent probe CB2-H for the simultaneous detection of HOCl and ONOO-. ONOO- can selectively oxidize the hydrazide group of CB2-H to afford the parent dye CB2 (Absmax/Emmax = 631/669 nm). In the case of HOCl, it undergoes an electrophilic attack on the benzopyran moiety of CB2-H to give a chlorinated product CB2-H-Cl, which inhibits the PET process within the probe and thus affords a turn-on fluorescence response at the coumarin channel (Absmax/Emmax = 407/468 nm). Due to the marked differences in absorption/emission wavelengths between the HOCl and ONOO- products, CB2-H enables the concurrent detection of HOCl and ONOO- at two independent channels without spectral cross-interference. CB2-H has been applied for dual-channel fluorescence imaging of endogenously produced HOCl and ONOO- in living cells and zebrafish under different stimulants. The present probe provides a useful tool for further exploring the distribution and correlation of HOCl and ONOO- in more biosystems.
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Affiliation(s)
- Wenming Huang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710127, P. R. China
| | - Xinmei Du
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710127, P. R. China
| | - Congjie Zhang
- School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xian, Shaanxi 710062, P. R. China
| | - Shengrui Zhang
- School of Chemistry and Environment Science, Shaanxi University of Technology, Hanzhong, Shaanxi 723000, P. R. China
| | - Jianjian Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710127, P. R. China
| | - Xiao-Feng Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710127, P. R. China
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169
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Stuhr R, Bayer P, von Wangelin AJ. The Diverse Modes of Oxygen Reactivity in Life & Chemistry. CHEMSUSCHEM 2022; 15:e202201323. [PMID: 36214486 PMCID: PMC10100308 DOI: 10.1002/cssc.202201323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Oxygen is a molecule of utmost importance in our lives. Beside its vital role for the respiration and sustaining of organisms, oxygen is involved in numerous chemical and physical processes. Upon combination of the different forms of molecular oxygen species with various activation modes, substrates, and reaction conditions an extremely wide chemical space can be covered that enables rich applications of diverse oxygenation processes. This Review provides an instructive overview of the individual properties and reactivities of oxygen species and illustrates their importance in nature, everyday life, and in the context of chemical synthesis.
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Affiliation(s)
- Robin Stuhr
- Department of ChemistryUniversity of HamburgMartin-Luther-King Platz 620146HamburgGermany
| | - Patrick Bayer
- Pantheon AustriaThermo Fisher ScientificSt. Peter Str. 254020LinzAustria
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170
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Morrison GC, Eftekhari A, Lakey PSJ, Shiraiwa M, Cummings BE, Waring MS, Williams B. Partitioning of reactive oxygen species from indoor surfaces to indoor aerosols. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2022; 24:2310-2323. [PMID: 36314460 DOI: 10.1039/d2em00307d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Reactive oxygen species (ROS) are among the species thought to be responsible for the adverse health effects of particulate matter (PM) inhalation. Field studies suggest that indoor sources of ROS contribute to measured ROS on PM in indoor air. We hypothesize that ozone reacts on indoor surfaces to form semi-volatile ROS, in particular organic peroxides (OPX), which partition to airborne particles. To test this hypothesis, we modeled ozone-induced formation of OPX, its decay and its partitioning to PM in a residential building and compared the results to field measurements. Simulations indicate that, while ROS of outdoor origin is the primary contributor to indoor ROS (in PM), a substantial fraction of ROS present in indoor PM is from ozone-surface chemistry. At an air change rate equal to 1/h, and an outdoor ozone mixing ratio of 35 ppb, 25% of the ROS concentration in air is due to indoor formation and partitioning of OPX to PM. For the same conditions, but with a modest indoor source of PM (1.5 mg h-1), 44% of indoor ROS on PM is of indoor origin. An indoor source of ozone, such as an electrostatic air cleaner, also increases OPX present in indoor PM. The results of the simulations support the hypothesis that ozone-induced formation of OPX on indoor surfaces, and subsequent partitioning to aerosols, is sufficient to explain field observations. Therefore, indoor sourced ROS could contribute meaningfully to total inhaled PM-ROS.
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Affiliation(s)
- Glenn C Morrison
- Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC, USA.
| | - Azin Eftekhari
- Department of Chemical and Biomolecular Engineering, Georgia Institute of Technology, GA, USA
| | | | - Manabu Shiraiwa
- Department of Chemistry, University of California Irvine, CA, USA
| | - Bryan E Cummings
- Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA, USA
| | - Michael S Waring
- Department of Civil, Architectural and Environmental Engineering, Drexel University, Philadelphia, PA, USA
| | - Brent Williams
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO, USA
- Center for Aerosol Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
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171
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Dynamic assembly of DNA-ceria nanocomplex in living cells generates artificial peroxisome. Nat Commun 2022; 13:7739. [PMID: 36517520 PMCID: PMC9751304 DOI: 10.1038/s41467-022-35472-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 12/05/2022] [Indexed: 12/15/2022] Open
Abstract
Intracellular accumulation of reactive oxygen species (ROS) leads to oxidative stress, which is closely associated with many diseases. Introducing artificial organelles to ROS-imbalanced cells is a promising solution, but this route requires nanoscale particles for efficient cell uptake and micro-scale particles for long-term cell retention, which meets a dilemma. Herein, we report a deoxyribonucleic acid (DNA)-ceria nanocomplex-based dynamic assembly system to realize the intracellular in-situ construction of artificial peroxisomes (AP). The DNA-ceria nanocomplex is synthesized from branched DNA with i-motif structure that responds to the acidic lysosomal environment, triggering transformation from the nanoscale into bulk-scale AP. The initial nanoscale of the nanocomplex facilitates cellular uptake, and the bulk-scale of AP supports cellular retention. AP exhibits enzyme-like catalysis activities, serving as ROS eliminator, scavenging ROS by decomposing H2O2 into O2 and H2O. In living cells, AP efficiently regulates intracellular ROS level and resists GSH consumption, preventing cells from redox dyshomeostasis. With the protection of AP, cytoskeleton integrity, mitochondrial membrane potential, calcium concentration and ATPase activity are maintained under oxidative stress, and thus the energy of cell migration is preserved. As a result, AP inhibits cell apoptosis, reducing cell mortality through ROS elimination.
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172
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Wang X, Chen Y, Yang X, Cheng L, He Z, Xin Y, Huang S, Meng F, Zhang P, Luo L. Activation of ALOX12 by a multi-organelle-orienting photosensitizer drives ACSL4-independent cell ferroptosis. Cell Death Dis 2022; 13:1040. [PMID: 36517470 PMCID: PMC9751149 DOI: 10.1038/s41419-022-05462-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 12/15/2022]
Abstract
Ferroptosis is a recently-defined tumor suppression mechanism, but the sensitivity of many tumorigenic cells to ferroptosis is limited by their deficient expression of acyl-CoA synthetase long-chain family member 4 (ACSL4). Here, we report the discovery of a photosensitizer, namely TPCI, which can evoke ACSL4-independent ferroptosis of cancer cells in photodynamic therapy. Through co-localization with 12-lipoxygenase (ALOX12) in multiple subcellular organelles, TPCI activates ALOX12 to generate lipid reactive oxygen species in large quantity and trigger cell ferroptosis. Intriguingly, confining TPCI exclusively in lysosomes switches the cell death from ferroptosis to apoptosis. More strikingly, the ferroptosis mediated by TPCI-induced ALOX12 activation does not require the participation of ACSL4. Therefore, our study identifies TPCI as the first ALOX12 activator to induce ferroptosis independent of ACSL4, which renders a viable therapeutic approach on the basis of distinct ferroptosis of cancer cells, regardless their ACSL4 expressions.
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Affiliation(s)
- Xiuxia Wang
- grid.207374.50000 0001 2189 3846Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052 China
| | - Yuanhong Chen
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Xiang Yang
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Lianghui Cheng
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Zhenyan He
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Yanru Xin
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Shan Huang
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Fanling Meng
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Peijing Zhang
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China ,grid.33199.310000 0004 0368 7223Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Liang Luo
- grid.33199.310000 0004 0368 7223National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China ,grid.33199.310000 0004 0368 7223Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074 China ,grid.33199.310000 0004 0368 7223Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 China
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173
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Jiang Y, Indrajith S, Perez Mellor AF, Bürgi T, Lecouvey M, Clavaguéra C, Bodo E, Houée-Levin C, Loire E, Berden G, Oomens J, Scuderi D. Final Products of One-Electron Oxidation of Cyclic Dipeptides Containing Methionine Investigated by IRMPD Spectroscopy: Does the Free Radical Choose the Final Compound? J Phys Chem B 2022; 126:10055-10068. [PMID: 36417492 DOI: 10.1021/acs.jpcb.2c06541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Reactive oxygen species (ROS) such as hydrogen peroxide (H2O2) and the hydroxyl radical (•OH) have specific functions in biological processes, while their uncontrolled production and reactivity are known to be determining factors in pathophysiology. Methionine (Met) residues act as endogenous antioxidants, when they are oxidized into methionine sulfoxide (MetSO), thus depleting ROS and protecting the protein. We employed tandem mass spectrometry combined with IR multiple photon dissociation spectroscopy to study the oxidation induced by OH radicals produced by γ radiolysis on model cyclic dipeptides c(LMetLMet), c(LMetDMet), and c(GlyMet). Our aim was to characterize the geometries of the oxidized peptides in the gas phase and to understand the relationship between the structure of the 2-center 3-electron (2c-3e) free radical formed in the first step of the oxidation process and the final compound. Density functional theory calculations were performed to characterize the lowest energy structures of the final product of oxidation and to interpret the IR spectra. Collision-induced dissociation tandem mass spectrometry (CID-MS2) experiments of oxidized c(LMetLMet)H+ and c(LMetDMet)H+ led to the loss of one or two oxidized sulfenic acid molecules, indicating that the addition of one or two oxygen atoms occurs on the sulfur atom of both methionine side chains and no sulfone formation was observed. The CID-MS2 fragmentation mass spectrum of oxidized c(GlyMet)H+ showed only the loss of one oxidized sulfenic acid molecule. Thus, the final products of oxidation are the same regardless of the structure of the precursor sulfur-centered free radical.
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Affiliation(s)
- Yining Jiang
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Suvasthika Indrajith
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France.,Stockholm University, Roslagstullsbacken 21 C, plan 4, Albano, Fysikum, 106 91 Stockholm, Sweden
| | - Ariel Francis Perez Mellor
- Faculté des Sciences, Section de Chimie et Biologie, Département de Chimie Physique, Université de Genève, 30 Quai Ernest-Ansermet, CH-1211 Genève, Switzerland
| | - Thomas Bürgi
- Faculté des Sciences, Section de Chimie et Biologie, Département de Chimie Physique, Université de Genève, 30 Quai Ernest-Ansermet, CH-1211 Genève, Switzerland
| | - Marc Lecouvey
- Department of Chemistry, Université Sorbonne Paris Nord, CSPBAT, CNRS, UMR 7244, 1 rue de Chablis, F-93000 Bobigny, France
| | - Carine Clavaguéra
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Enrico Bodo
- Departement of Chemistry, Università di Roma La Sapienza, P. Aldo Moro 5, 00185 Rome, Italy
| | - Chantal Houée-Levin
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Estelle Loire
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
| | - Giel Berden
- FELIX Laboratory, Institute for Molecules and Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - Jos Oomens
- FELIX Laboratory, Institute for Molecules and Materials, Radboud University, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands.,Van't Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090 GD Amsterdam, The Netherlands
| | - Debora Scuderi
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR 8000, 91405 Orsay, France
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174
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Lee I, Moon J, Lee H, Koh S, Kim GM, Gauthé L, Stellacci F, Huh YS, Kim P, Lee DC. Photodynamic treatment of multidrug-resistant bacterial infection using indium phosphide quantum dots. Biomater Sci 2022; 10:7149-7161. [PMID: 36367125 DOI: 10.1039/d2bm01393b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Infections caused by multidrug-resistant (MDR) bacteria pose an impending threat to humanity, as the evolution of MDR bacteria outpaces the development of effective antibiotics. In this work, we use indium phosphide (InP) quantum dots (QDs) to treat infections caused by MDR bacteria via photodynamic therapy (PDT), which shows superior bactericidal efficiency over common antibiotics. PDT in the presence of InP QDs results in high-efficiency bactericidal activity towards various bacterial species, including Staphylococcus aureus, Bacillus cereus, Escherichia coli and Pseudomonas aeruginosa. Upon light absorption, InP QDs generate superoxide (O2˙-), which leads to efficient and selective killing of MDR bacteria while mammalian cells remain intact. The cytotoxicity evaluation reveals that InP QDs are bio- and blood-compatible in a wide therapeutic window. For the in vivo study, we drop a solution of InP QDs at a concentration within the therapeutic window onto MDR S. aureus-infected skin wounds of mice and perform PDT for 15 min. InP QDs show excellent therapeutic and prophylactic efficacy in treating MDR bacterial infection. These findings show that InP QDs have great potential to serve as antibacterial agents for MDR bacterial infection treatment, as an effective and complementary alternative to conventional antibiotics.
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Affiliation(s)
- Ilsong Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Jieun Moon
- Graduate School of Nanoscience and Technology, KAIST, Daejeon 34141, Korea. .,KI for Health Science and Technology (KIHST), KAIST, Daejeon 34141, Korea
| | - Hoomin Lee
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, Incheon 22212, Korea.
| | - Sungjun Koh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Gui-Min Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Laure Gauthé
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
| | - Francesco Stellacci
- Institute of Materials Science & Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Yun Suk Huh
- NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, Incheon 22212, Korea.
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, KAIST, Daejeon 34141, Korea. .,KI for Health Science and Technology (KIHST), KAIST, Daejeon 34141, Korea.,Graduate School of Medical Science and Engineering, KAIST, Daejeon 34141, Korea
| | - Doh C Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea. .,KAIST Institute for the Nanocentury (KINC), KAIST, Daejeon 34141, Korea.,Energy & Environmental Research Center (EERC), KAIST, Daejeon 34141, Korea
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175
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Fang T, Huang YK, Wei J, Monterrosa Mena JE, Lakey PSJ, Kleinman MT, Digman MA, Shiraiwa M. Superoxide Release by Macrophages through NADPH Oxidase Activation Dominating Chemistry by Isoprene Secondary Organic Aerosols and Quinones to Cause Oxidative Damage on Membranes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:17029-17038. [PMID: 36394988 PMCID: PMC9730850 DOI: 10.1021/acs.est.2c03987] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 11/02/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Oxidative stress mediated by reactive oxygen species (ROS) is a key process for adverse aerosol health effects. Secondary organic aerosols (SOA) account for a major fraction of fine particulate matter, and their inhalation and deposition into the respiratory tract causes the formation of ROS by chemical and cellular processes, but their relative contributions are hardly quantified and their link to oxidative stress remains uncertain. Here, we quantified cellular and chemical superoxide generation by 9,10-phenanthrenequinone (PQN) and isoprene SOA using a chemiluminescence assay combined with electron paramagnetic resonance spectroscopy as well as kinetic modeling. We also applied cellular imaging techniques to study the cellular mechanism of superoxide release and oxidative damage on cell membranes. We show that PQN and isoprene SOA activate NADPH oxidase in macrophages to release massive amounts of superoxide, overwhelming the superoxide formation by aqueous chemical reactions in the epithelial lining fluid. The activation dose for PQN is 2 orders of magnitude lower than that of isoprene SOA, suggesting that quinones are more toxic. While higher exposures trigger cellular antioxidant response elements, the released ROS induce oxidative damage to the cell membrane through lipid peroxidation. Such mechanistic and quantitative understandings provide a basis for further elucidation of adverse health effects and oxidative stress by fine particulate matter.
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Affiliation(s)
- Ting Fang
- Department
of Chemistry, University of California, Irvine 92697, California, United States
| | - Yu-Kai Huang
- Department
of Biomedical Engineering, University of
California, Irvine 92697, California, United States
| | - Jinlai Wei
- Department
of Chemistry, University of California, Irvine 92697, California, United States
| | - Jessica E. Monterrosa Mena
- Division
of Occupational and Environmental Medicine, University of California, Irvine 92697, California, United States
| | - Pascale S. J. Lakey
- Department
of Chemistry, University of California, Irvine 92697, California, United States
| | - Michael T. Kleinman
- Division
of Occupational and Environmental Medicine, University of California, Irvine 92697, California, United States
| | - Michelle A. Digman
- Department
of Biomedical Engineering, University of
California, Irvine 92697, California, United States
| | - Manabu Shiraiwa
- Department
of Chemistry, University of California, Irvine 92697, California, United States
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176
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Identification of Agents That Ameliorate Hyperphosphatemia-Suppressed Myogenin Expression Involved in the Nrf2/p62 Pathway in C2C12 Skeletal Muscle Cells. Int J Mol Sci 2022; 23:ijms232315324. [PMID: 36499650 PMCID: PMC9736935 DOI: 10.3390/ijms232315324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/06/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Hyperphosphatemia can occur as a result of reduced phosphate (Pi) excretion in cases of kidney dysfunction, which can induce muscle wasting and suppress myogenic differentiation. Higher Pi suppresses myogenic differentiation and promotes muscle atrophy through canonical (oxidative stress-mediated) and noncanonical (p62-mediated) activation of nuclear factor erythroid 2-related factor 2 (Nrf2) signaling. However, the crosstalk between myogenin and Nrf2/p62 and potential drug(s) for the regulation of myogenin expression needed to be addressed. In this study, we further identified that myogenin may negatively regulate Nrf2 and p62 protein levels in the mouse C2C12 muscle cell line. In the drug screening analysis, we identified N-acetylcysteine, metformin, phenformin, berberine, 4-chloro-3-ethylphenol, cilostazol, and cilomilast as ameliorating the induction of Nrf2 and p62 expression and reduction in myogenin expression that occur due to high Pi. We further elucidated that doxorubicin and hydrogen peroxide reduced the amount of myogenin protein mediated through the Kelch-like ECH-associated protein 1/Nrf2 pathway, differently from the mechanism of high Pi. The dual functional roles of L-ascorbic acid (L-AA) were found to be dependent on the working concentration, where concentrations below 1 mM L-AA reversed the effect of high Pi on myogenin and those above 1 mM L-AA had a similar effect of high Pi on myogenin when used alone. L-AA exacerbated the effect of hydrogen peroxide on myogenin protein and had no further effect of doxorubicin on myogenin protein. In summary, our results further our understanding of the crosstalk between myogenin and Nrf2, with the identification and verification of several potential drugs that can be applied in rescuing the decline of myogenin due to high Pi in muscle cells.
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177
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Abed OA, Attlassy Y, Xu J, Han K, Moon JJ. Emerging Nanotechnologies and Microbiome Engineering for the Treatment of Inflammatory Bowel Disease. Mol Pharm 2022; 19:4393-4410. [PMID: 35878420 PMCID: PMC9763926 DOI: 10.1021/acs.molpharmaceut.2c00222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inflammatory bowel disease (IBD) is characterized by the chronic inflammation of the gastrointestinal tract and impacts almost 7 million people across the globe. Current therapeutics are effective in treating the symptoms, but they often do not address the root cause or selectively target areas of inflammation. Notably, self-assembled nanoparticles show great promise as drug delivery systems for the treatment of IBD. Nanoparticles can be designed to survive the harsh gastric conditions and reach inflamed areas of the gastrointestinal tract. Oral drug delivery with nanoparticles can localize drugs to the impacted inflamed region using active and/or passive targeting and promote a high rate of drug dispersion in local tissues, thus reducing potential off-target toxicities. Since a dysregulated gut microbiome is implicated in the development and progression of IBD, it is also important to develop nanoparticles and biomaterials that can restore symbiotic microbes while reducing the proliferation of harmful microbes. In this review, we highlight recent advances in self-assembled nanosystems designed for addressing inflammation and dysregulated gut microbiomes as potential treatments for IBD. Nanoparticles have a promising future in improving the delivery of current therapeutics, increasing patient compliance by providing an oral method of medication, and reducing side effects. However, remaining challenges include scale-up synthesis of nanoparticles, potential side effects, and financial obstacles of clinical trials. It would be in the patients' best interest to continue research on nanoparticles in the pursuit of more effective therapeutics for the treatment of IBD.
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Affiliation(s)
- Omar A Abed
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Younes Attlassy
- Department of Medicine, New York University School of Medicine, New York, New York 10012, United States
| | - Jin Xu
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kai Han
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - James J Moon
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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178
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Zhou J, Yang R, Sun Y, Luo F, Zhang J, Ma H, Guan M. HClO-triggered interventional probe enabled early detection and intervention of atherosclerosis. Analyst 2022; 148:163-174. [PMID: 36464987 DOI: 10.1039/d2an01374f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Foam cell formation and further accumulation in the subendothelial space of the vascular wall is a hallmark of early atherosclerosis (AS). Targeting foam cell formation can be a promising approach for the early detection and prevention of AS. However, only a few studies have actually examined foam cells in vivo, and most methods combined nanotechnology with angiography, which is complex and could cause further damage to the endothelium. Herein, based on methylene blue, a biosafe NIR dye approved by the FDA, an interventional probe (HMB-NA@Mp) triggered by hypochlorous acid (HClO) was designed for imaging foam cells easily, safely, and effectively in the early stage of AS. Here, encapsulation of the probe by foam cells targeted platelet membrane (Mp) increased probe targeting and reduced toxicity. Cell and animal experimental results showed that the probe could accumulate at the lesion site and significantly enhance fluorescence in the early AS model group. Remarkably, at the same time, it could also release the metabolite niacin, which played a role in inhibiting atherosclerosis. Thus, HMB-NA@Mp is expected to be a powerful means for the early detection and timely intervention of early AS in the absence of clinical symptoms.
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Affiliation(s)
- Jie Zhou
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Ruhe Yang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Yiwen Sun
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Fusui Luo
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Jin Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Huili Ma
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Min Guan
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
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179
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Yang F, Zhu Y, Zhang C, Yang Z, Yuan J, Zhu Q, Ding S. A highly sensitive and selective artificial nanochannel for in situ detection of hydroxyl radicals in single living cell. Anal Chim Acta 2022; 1235:340537. [DOI: 10.1016/j.aca.2022.340537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022]
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180
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Bentoumi H, Tliba S, K'tir H, Chohra D, Aouf Z, Adjeroud Y, Amira A, Zerrouki R, Ibrahim-Ouali M, Aouf NE, Liacha M. Experimental synthesis, biological evaluation, theoretical investigations of some novel benzoxazolinone based Schiff under eco-environmental conditions as potential antioxidant agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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181
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Xie L, Zhu K, Jiang W, Lu H, Yang H, Deng Y, Jiang Y, Jia H. Toxic effects and primary source of the aged micro-sized artificial turf fragments and rubber particles: Comparative studies on laboratory photoaging and actual field sampling. ENVIRONMENT INTERNATIONAL 2022; 170:107663. [PMID: 36450210 DOI: 10.1016/j.envint.2022.107663] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Numerous micro-sized artificial turf fragments (MATF) and rubber particles (MRP) are generated and accumulated during the use of the artificial playing field. However, attention has rarely been paid to the potential toxic effects of MATF and MRP on sportsmen. In this study, the active components and chemical composition of aged MATF and MRP derived from laboratory photoaging and actual field sampling were detected, and their effects on cytotoxicity were examined correspondingly. Laboratory photoaging significantly increased environmental persistent free radicals (EPFRs), reactive oxygen species (ROS) abundances and oxidative potential (OP) levels on MATF and MRP, but they have limited cytotoxicity. Unfortunately, in the actual field, aged MATF and MRP with higher heavy metals and polycyclic aromatic hydrocarbons (PAHs) contents exhibited markedly higher cytotoxicity with the survival rate of cells of 78 % and 26 % (p < 0.05), although they had lower EPFRs and ROS yields. Correlation analysis revealed that the cell viability was closely linked to heavy metals of MATF (p < 0.05), and to organic hydroperoxide (OHP), PAHs and heavy metals of MRP (p < 0.05). By systematically considering the above results, heavy metals and PAHs enriched on MATF and MRP from the surrounding environment played the important role in the cytotoxicity, which was different from conventional perspectives. Our findings demonstrate that MATF and MRP associated with an artificial turf field contain potent mixtures of pollutants and can, therefore, be relevant yet underestimated factors contributing to the health risks.
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Affiliation(s)
- Linyang Xie
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Kecheng Zhu
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China.
| | - Wenjun Jiang
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Haodong Lu
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Huiqiang Yang
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Yongxi Deng
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Yuanren Jiang
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Hanzhong Jia
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China.
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182
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Sousa T, Gouveia M, Travasso RD, Salvador A. How abundant are superoxide and hydrogen peroxide in the vasculature lumen, how far can they reach? Redox Biol 2022; 58:102527. [PMID: 36335761 PMCID: PMC9640316 DOI: 10.1016/j.redox.2022.102527] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/21/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Paracrine superoxide (O2•−) and hydrogen peroxide (H2O2) signaling critically depends on these substances' concentrations, half-lives and transport ranges in extracellular media. Here we estimated these parameters for the lumen of human capillaries, arterioles and arteries using reaction-diffusion-advection models. These models considered O2•− and H2O2 production by endothelial cells and uptake by erythrocytes and endothelial cells, O2•− dismutation, O2•− and H2O2 diffusion and advection by the blood flow. Results show that in this environment O2•− and H2O2 have half-lives <60. ms and <40. ms, respectively, the former determined by the plasma SOD3 activity, the latter by clearance by endothelial cells and erythrocytes. H2O2 concentrations do not exceed the 10 nM scale. Maximal O2•− concentrations near vessel walls exceed H2O2's several-fold when the latter results solely from O2•− dismutation. Cytosolic dismutation of inflowing O2•− may thus significantly contribute to H2O2 delivery to cells. O2•− concentrations near vessel walls decay to 50% of maximum 12 μm downstream from O2•− production sites. H2O2 concentrations in capillaries decay to 50% of maximum 22 μm (6.0 μm) downstream from O2•− (H2O2) production sites. Near arterioles' (arteries') walls, they decay by 50% within 6.0 μm (4. μm) of H2O2 production sites. However, they reach maximal values 50 μm (24 μm) downstream from O2•− production sites and decrease by 50% over 650 μm (500 μm). Arterial/olar endothelial cells might thus signal over a mm downstream through O2•−-derived H2O2, though this requires nM-sensitive H2O2 transduction mechanisms. Physiological local H2O2 concentrations in vasculature lumen are up to 10's of μM. H2O2 transport range in capillaries is just ≈20 μm. Faster blood flow in arteri(ol)es transports O2•−-derived H2O2 over 100's of μm Similar H2O2 abundances and distribution near arterioles' and arteries' walls, likewise for O2•−. Inflowing O2•− may significantly feed H2O2 to the cytosol of endothelial cells
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183
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Da J, Li Y, Zhang K, Ren J, Wang J, Liu X, Liu X, Zhang J, Liu L, Zhang W, Zhang S, Guo Y, Zhang B, Jin H. Functionalized Prussian Blue Nanozyme as Dual-Responsive Drug Therapeutic Nanoplatform Against Maxillofacial Infection via Macrophage Polarization. Int J Nanomedicine 2022; 17:5851-5868. [PMCID: PMC9719692 DOI: 10.2147/ijn.s385899] [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: 08/12/2022] [Accepted: 11/18/2022] [Indexed: 12/05/2022] Open
Abstract
Purpose Maxillofacial infection is a common disease in stomatology and is difficult to treat owing to its high potential to spread to vital anatomical structures. Excessive levels of reactive oxygen species (ROS) in infected tissues lead to cellular damage and impede tissue regeneration. However, uncontrollable strategies to remove ROS have limited therapeutic efficacy. Nanoparticle systems for scavenging ROS and remodeling the inflammatory microenvironment offer much promise in the treatment of maxillofacial inflammation. Methods Here, a novel microenvironment-stimuli-responsive drug delivery nanoplatform (HMPB@Cur@PDA) based on a polydopamine (PDA)-functionalized hollow mesoporous Prussian blue (HMPB) nanozyme was developed for the delivery of curcumin (Cur) in the treatment of maxillofacial infection. Low pH and excess ROS in the inflammatory microenvironment cause degradation of the outer PDA layer of the nanocomplex, exposing the HMPB nanozyme and loaded Cur, which synergistically act as a ROS scavenger and anti-inflammatory agent, respectively, and induce macrophage polarization from the pro-inflammatory M1 to the anti-inflammatory M2 phenotype. Results Experiments in vitro provided strong evidence for the application of novel nanocomplexes in scavenging multiple ROS and inhibiting lipopolysaccharide-induced inflammation. In addition, in vivo results obtained using a mouse maxillofacial infection model demonstrated that HMPB@Cur@PDA had excellent biocompatibility, significantly attenuated the inflammatory response in periodontal tissue, and improved the repair of damaged tissue. Conclusion Our results indicate that HMPB@Cur@PDA nanocomposites have great potential for ROS regulation as well as having anti-inflammatory effects, providing new insights for the development of dual-response maxillofacial infection treatments.
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Affiliation(s)
- Junlong Da
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Ying Li
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Kai Zhang
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Junyu Ren
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Jianqun Wang
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Xinpeng Liu
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Xiaoyao Liu
- Department of Orthodontics, the First Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Jiahui Zhang
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Lixue Liu
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Wenxuan Zhang
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Shujian Zhang
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Yuyao Guo
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China
| | - Bin Zhang
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China,Heilongjiang Academy of Medical Sciences, Harbin, People’s Republic of China
| | - Han Jin
- Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, People’s Republic of China,Correspondence: Han Jin; Bin Zhang, Heilongjiang Provincial Key Laboratory of Hard Tissue Development and Regeneration, the Second Affiliated Hospital of Harbin Medical University, Harbin, 150001, People’s Republic of China, Tel/Fax +86 0451-86297231, Email ;
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184
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Wang Z, Mu L, Feng H, Yao J, Wang Q, Yang W, Zhou H, Li Q, Xu L. Expression patterns of platinum resistance-related genes in lung adenocarcinoma and related clinical value models. Front Genet 2022; 13:993322. [PMID: 36506331 PMCID: PMC9730711 DOI: 10.3389/fgene.2022.993322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/21/2022] [Indexed: 11/25/2022] Open
Abstract
The purpose of this study was to explore platinum resistance-related biomarkers and mechanisms in lung adenocarcinoma. Through the analysis of gene expression data of lung adenocarcinoma patients and normal patients from The Cancer Genome Atlas, Gene Expression Omnibus database, and A database of genes related to platinum resistance, platinum resistance genes in lung adenocarcinoma and platinum resistance-related differentially expressed genes were obtained. After screening by a statistical significance threshold, a total of 252 genes were defined as platinum resistance genes with significant differential expression, of which 161 were up-regulated and 91 were down-regulated. The enrichment results of up-regulated gene Gene Ontology (GO) showed that TOP3 entries related to biological processes (BP) were double-strand break repair, DNA recombination, DNA replication, the down-regulated gene GO enriches the TOP3 items about biological processes (BP) as a response to lipopolysaccharide, muscle cell proliferation, response to molecule of bacterial origin. Gene Set Enrichment Analysis showed that the top three were e2f targets, g2m checkpoint, and rgf beta signaling. A prognostic model based on non-negative matrix factorization classification showed the characteristics of high- and low-risk groups. The prognostic model established by least absolute shrinkage and selection operator regression and risk factor analysis showed that genes such as HOXB7, NT5E, and KRT18 were positively correlated with risk score. By analyzing the differences in m6A regulatory factors between high- and low-risk groups, it was found that FTO, GPM6A, METTL3, and YTHDC2 were higher in the low-risk group, while HNRNPA2B1, HNRNPC, TGF2BP1, IGF2BP2, IGF2BP3, and RBM15B were higher in the high-risk group. Immune infiltration and drug sensitivity analysis also showed the gene characteristics of the platinum-resistant population in lung adenocarcinoma. ceRNA analysis showed that has-miR-374a-5p and RP6-24A23.7 were lower in the tumor expression group, and that the survival of the low expression group was worse than that of the high expression group. In conclusion, the results of this study show that platinum resistance-related differentially expressed genes in lung adenocarcinoma are mainly concentrated in biological processes such as DNA recombination and response to lipopolysaccharide. The validation set proved that the high-risk group of our prognostic model had poor survival. M6A regulatory factor analysis, immune infiltration, and drug sensitivity analysis all showed differences between high and low-risk groups. ceRNA analysis showed that has-miR-374a-5p and RP6-24A23.7 could be protective factors. Further exploration of the potential impact of these genes on the risk and prognosis of drug-resistant patients with lung adenocarcinoma would provide theoretical support for future research.
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Affiliation(s)
- Zhe Wang
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lin Mu
- Department of Ophthalmology, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - He Feng
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Zhejiang, China
| | - Jialin Yao
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qin Wang
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenxiao Yang
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huiling Zhou
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qinglin Li
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Zhejiang, China,*Correspondence: Qinglin Li, ; Ling Xu,
| | - Ling Xu
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Qinglin Li, ; Ling Xu,
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185
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Sánchez AG, Ibargoyen MN, Mastrogiovanni M, Radi R, Keszenman DJ, Peluffo RD. Fast and biphasic 8-nitroguanine production from guanine and peroxynitrite. Free Radic Biol Med 2022; 193:474-484. [PMID: 36332879 DOI: 10.1016/j.freeradbiomed.2022.10.317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/12/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022]
Abstract
Guanine (Gua), among purines, is a preferred oxidation/nitration target because of its low one-electron redox potential. The reactive oxygen/nitrogen species peroxynitrite (ONOO-), produced in vivo by the reaction between nitric oxide (•NO) and superoxide radical (O2•‒), is responsible for several oxidative modifications in biomolecules, including nitration, nitrosation, oxidation, and peroxidation. In particular, the nitration of Gua, although detected, as well as its reaction kinetics have been seldom investigated. Thus, we studied the concentration- and temperature-dependent formation of 8-nitroguanine (8-NitroGua) in phosphate buffer (pH 7.40) using stopped-flow spectrophotometry. Traces showed a biexponential behavior, with best-fit rate constants: kfast = 4.4 s-1 and kslow = 0.41 s-1 (30 °C, 400 μM both Gua and ONOO-). kfast increased linearly with the concentration of both reactants whereas kslow was concentration-independent. Linear regression analysis of kfast as a function of Gua and ONOO- concentration yielded values of 2.5-6.3 × 103 M-1s-1 and 1.5-3.5 s-1 for the second-order (slope) and first-order (ordinate) rate constants, respectively (30 °C). Since ONOO- is a short-lived species, its decay kinetics was also taken into account for this analysis. The 8-NitroGua product was stable for at least 4 h, so no spontaneous denitration was observed. Stopped-flow assays using antioxidants and free-radical scavengers suggested a mixed direct/indirect reaction mechanism for 8-NitroGua formation. Gua nitration by ONOO- was also observed in the presence of physiologically relevant CO2 concentrations. The reaction product identity, its yield (∼4.2%, with 400 μM ONOO- and 200 μM Gua), and the reaction mechanism were unequivocally determined by HPLC-MS/MS experiments. In conclusion, 8-NitroGua production at physiologic pH reached significant levels in a few hundred milliseconds, suggesting that the process might be kinetically relevant in vivo and can likely cause permanent nitrative damage to DNA bases.
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Affiliation(s)
- Ana G Sánchez
- Grupo de Biofisicoquímica, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Rivera 1350, 50000, Salto, Uruguay
| | - M Natalia Ibargoyen
- Grupo de Biofisicoquímica, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Rivera 1350, 50000, Salto, Uruguay
| | - Mauricio Mastrogiovanni
- Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Avda. General Flores 2125, 11800, Montevideo, Uruguay
| | - Rafael Radi
- Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Avda. General Flores 2125, 11800, Montevideo, Uruguay
| | - Deborah J Keszenman
- Grupo de Biofisicoquímica, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Rivera 1350, 50000, Salto, Uruguay
| | - R Daniel Peluffo
- Grupo de Biofisicoquímica, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Rivera 1350, 50000, Salto, Uruguay; Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Avda. General Flores 2125, 11800, Montevideo, Uruguay; Department of Pharmacology, Physiology and Neuroscience, Rutgers Biomedical and Health Sciences, New Jersey Medical School, Rutgers, The State University of New Jersey, 185 South Orange Avenue, Newark, NJ, 07103, USA.
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186
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Kotta-Loizou I, Giuliano MG, Jovanovic M, Schaefer J, Ye F, Zhang N, Irakleidi DA, Liu X, Zhang X, Buck M, Engl C. The RNA repair proteins RtcAB regulate transcription activator RtcR via its CRISPR-associated Rossmann fold domain. iScience 2022; 25:105425. [PMID: 36388977 PMCID: PMC9650030 DOI: 10.1016/j.isci.2022.105425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/21/2022] [Accepted: 10/18/2022] [Indexed: 11/07/2022] Open
Abstract
CRISPR-associated Rossmann fold (CARF) domain signaling underpins modulation of CRISPR-Cas nucleases; however, the RtcR CARF domain controls expression of two conserved RNA repair enzymes, cyclase RtcA and ligase RtcB. Here, we demonstrate that RtcAB are required for RtcR-dependent transcription activation and directly bind to RtcR CARF. RtcAB catalytic activity is not required for complex formation with CARF, but is essential yet not sufficient for RtcRAB-dependent transcription activation, implying the need for an additional RNA repair-dependent activating signal. This signal differs from oligoadenylates, a known ligand of CARF domains, and instead appears to originate from the translation apparatus: RtcB repairs a tmRNA that rescues stalled ribosomes and increases translation elongation speed. Taken together, our data provide evidence for an expanded range for CARF domain signaling, including the first evidence of its control via in trans protein-protein interactions, and a feed-forward mechanism to regulate RNA repair required for a functioning translation apparatus.
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Affiliation(s)
- Ioly Kotta-Loizou
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Maria Grazia Giuliano
- School of Biological and Behavioural Sciences, Queen Mary University of London, London E1 4NS, UK
| | - Milija Jovanovic
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Jorrit Schaefer
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Fuzhou Ye
- Section of Structural Biology, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK
| | - Nan Zhang
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
- Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Danai Athina Irakleidi
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Xiaojiao Liu
- Section of Structural Biology, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Xiaodong Zhang
- Section of Structural Biology, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK
| | - Martin Buck
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Christoph Engl
- Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
- School of Biological and Behavioural Sciences, Queen Mary University of London, London E1 4NS, UK
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187
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P66Shc (Shc1) Zebrafish Mutant Line as a Platform for Testing Decreased Reactive Oxygen Species in Pathology. J Cardiovasc Dev Dis 2022; 9:jcdd9110385. [DOI: 10.3390/jcdd9110385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/12/2022] Open
Abstract
Reactive oxygen species (ROS) dysregulation exacerbates many pathologies but must remain within normal ranges to maintain cell function. Since ROS-mediated pathology and routine cell function are coupled, in vivo models evaluating low-ROS background effects on pathology are limited. Some models alter enzymatic antioxidant expression/activity, while others involve small molecule antioxidant administration. These models cause non-specific ROS neutralization, decreasing both beneficial and detrimental ROS. This is detrimental in cardiovascular pathology, despite the negative effects excessive ROS has on these pathologies. Thus, current trends in ROS-mediated pathology have shifted toward selective inhibition of ROS producers that are dysregulated during pathological insults, such as p66Shc. In this study, we evaluated a zebrafish heterozygote p66Shc hypomorphic mutant line as a low-ROS myocardial infarction (MI) pathology model that mimics mammalian MI. Our findings suggest this zebrafish line does not have an associated negative phenotype, but has decreased body mass and tissue ROS levels that confer protection against ROS-mediated pathology. Therefore, this line may provide a low-ROS background leading to new insights into disease.
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188
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Chatgilialoglu C, Krokidis MG, Masi A, Barata-Vallejo S, Ferreri C, Pascucci B, D’Errico M. Assessing the Formation of Purine Lesions in Mitochondrial DNA of Cockayne Syndrome Cells. Biomolecules 2022; 12:1630. [PMID: 36358980 PMCID: PMC9687895 DOI: 10.3390/biom12111630] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022] Open
Abstract
Mitochondrial (mt) DNA and nuclear (n) DNA have known structures and roles in cells; however, they are rarely compared under specific conditions such as oxidative or degenerative environments that can create damage to the DNA base moieties. Six purine lesions were ascertained in the mtDNA of wild type (wt) CSA (CS3BE-wtCSA) and wtCSB (CS1AN-wtCSB) cells and defective counterparts CS3BE and CS1AN in comparison with the corresponding total (t) DNA (t = n + mt). In particular, the four 5',8-cyclopurine (cPu) and the two 8-oxo-purine (8-oxo-Pu) lesions were accurately quantified by LC-MS/MS analysis using isotopomeric internal standards after an enzymatic digestion procedure. The 8-oxo-Pu levels were found to be in the range of 25-50 lesions/107 nucleotides in both the mtDNA and tDNA. The four cPu were undetectable in the mtDNA both in defective cells and in the wt counterparts (CSA and CSB), contrary to their detection in tDNA, indicating a nonappearance of hydroxyl radical (HO•) reactivity within the mtDNA. In order to assess the HO• reactivity towards purine nucleobases in the two genetic materials, we performed γ-radiolysis experiments coupled with the 8-oxo-Pu and cPu quantifications on isolated mtDNA and tDNA from wtCSB cells. In the latter experiments, all six purine lesions were detected in both of the DNA, showing a higher resistance to HO• attack in the case of mtDNA compared with tDNA, likely due to their different DNA helical topology influencing the relative abundance of the lesions.
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Affiliation(s)
- Chryssostomos Chatgilialoglu
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, 40129 Bologna, Italy
- Center for Advanced Technologies, Adam Mickiewicz University, 61–614 Poznań, Poland
| | - Marios G. Krokidis
- Institute of Nanoscience and Nanotechnology, N.C.S.R. “Demokritos”, Agia Paraskevi Attikis, 15310 Athens, Greece
| | - Annalisa Masi
- Institute of Crystallography, Consiglio Nazionale delle Ricerche, Monterotondo Stazione, 00015 Rome, Italy
| | - Sebastian Barata-Vallejo
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, 40129 Bologna, Italy
- Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquimíca, Universidad de Buenos Aires, Junin 954, Buenos Aires CP 1113, Argentina
| | - Carla Ferreri
- Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Barbara Pascucci
- Institute of Crystallography, Consiglio Nazionale delle Ricerche, Monterotondo Stazione, 00015 Rome, Italy
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
| | - Mariarosaria D’Errico
- Department of Environment and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
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189
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Szerlauth A, Kónya ZD, Papp G, Kónya Z, Kukovecz Á, Szabados M, Varga G, Szilágyi I. Molecular orientation rules the efficiency of immobilized antioxidants. J Colloid Interface Sci 2022; 632:260-270. [DOI: 10.1016/j.jcis.2022.11.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 11/01/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022]
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190
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Li Y, Xia Q, Zhu C, Cao W, Xia Z, Liu X, Xiao B, Chen K, Liu Y, Zhong L, Tan B, Lei J, Zhu J. An activatable Mn(II) MRI probe for detecting peroxidase activity in vitro and in vivo. J Inorg Biochem 2022; 236:111979. [PMID: 36087435 DOI: 10.1016/j.jinorgbio.2022.111979] [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: 05/04/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 12/15/2022]
Abstract
Myeloperoxidase (MPO), a hallmark of the function and activation of innate immune cells, can act as a 'double-edged sword', contributing to clear infection as well as causing tissue oxidizing damage in various inflammatory diseases. In this study, an activatable Mn(II) chelate-based magnetic resonance imaging (MRI) contrast agent (CA), Mn-TyEDTA (TyEDTA = tyrosine derived ethylenediaminetetraacetic acid) structurally featuring a phenol group as the electron-donor, was developed to sense the activity of peroxidase in vitro and in vivo. Mn-TyEDTA demonstrated a peroxidase activity-dependent relaxivity in the presence of horseradish peroxidase (HRP)/H2O2 with more than a 2.6-fold increase in water proton relaxivity produced (HRP, 500 U; H2O2, 4.5 eq). A mechanism of peroxidase-mediated Mn(II) monomer radical polymerization was confirmed with those oligomers of Mn-TyEDTA such as dimer, trimer and tetramer were found in the LC-MS study. Dynamic MR imaging of normal mice revealed rapid blood clearance and mixed renal and hepatobiliary elimination of Mn-TyEDTA. Furthermore, compared to liver-specific and non-specific extracellular contrast agents (Mn-BnO-TyEDTA (BnO-TyEDTA = benzyl tyrosine-derived ethylenediaminetetraacetic acid) and Gd-DTPA (DTPA = diethylene triamine penta-acetic acid)), MRI on a monosodium urate (MSU) crystal-induced acute mice model of arthritis showed that inflamed tissues could be selectively enhanced by Mn-TyEDTA, suggesting that this peroxidase-activatable Mn(II) MRI probe could potentially be used for noninvasive detection of MPO activity in vivo.
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Affiliation(s)
- Yunhe Li
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China; School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, Sichuan 637000, China
| | - Qian Xia
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Chunrong Zhu
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Weidong Cao
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China; School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, Sichuan 637000, China
| | - Zhiyang Xia
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Xinxin Liu
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Bin Xiao
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Keyu Chen
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China; School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, Sichuan 637000, China
| | - Yun Liu
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Lei Zhong
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Bangxian Tan
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China
| | - Jun Lei
- School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, Sichuan 637000, China.
| | - Jiang Zhu
- Sichuan Key Laboratory of Medical Imaging, Department of Oncology, and Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, Sichuan 637000, China; School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, Sichuan 637000, China.
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191
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Zhang Y, Li J, Pu K. Recent advances in dual- and multi-responsive nanomedicines for precision cancer therapy. Biomaterials 2022; 291:121906. [DOI: 10.1016/j.biomaterials.2022.121906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022]
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192
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Wang X, Gou Z, Lv JJ, Zuo Y. A novel coumarin-TPA based fluorescent probe for turn-on hypochlorite detection and lipid-droplet-polarity bioimaging in cancer cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121481. [PMID: 35691171 DOI: 10.1016/j.saa.2022.121481] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/31/2022] [Accepted: 06/04/2022] [Indexed: 06/15/2023]
Abstract
A novel fluorescent compound, named C-TPA, based on coumarin (acceptor) and triphenylamine (donor) was facilely designed and fabricated through a one-step Suzuki coupling reaction. As a donor group, triphenylamine can efficiently enhance the fluorescence intensity and photostability of coumarin, and thus improve the detection efficiency. C-TPA-S was obtained from C-TPA treated with Lawesson's reagent and C-TPA-S can be used for the turn-on detection of hypochlorite through oxidative desulfurization with a low detection limit of 0.12 μM. Moreover, the intramolecular charge transfer process between the donor and acceptor group endows C-TPA with solvatochromism property and makes C-TPA a good candidate for polarity detection. The C-TPA with bright green fluorescence was highly efficient for imaging the microenvironment of polarity both in living cells and tissues with high selectivity and photostability, which can be applied in the diagnosis for the cancer cells.
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Affiliation(s)
- Xuefeng Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong 266109, PR China
| | - Zhiming Gou
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Jing-Jing Lv
- Key Laboratory of Carbon Materials of Zhejiang Province, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang 325035, PR China
| | - Yujing Zuo
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
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193
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Zhang R, Lian L, Wang B, Zhu L, Ren Y, Shen J, Yu XQ, Hou JT. Observation of HOCl generation associated with diabetic cataract using a highly sensitive fluorescent probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121385. [PMID: 35597158 DOI: 10.1016/j.saa.2022.121385] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Diagnosis of diabetic cataract (DC) in the early stage is of great significance for drug intervention and surgery circumvention for DC patients. However, the lack of reliable imaging tools greatly limits the diagnosis of early DC. In this context, a fluorescent probe BBPy for hypochlorous acid (HOCl) is presented based on the oxidation of phenothiazine. The probe displays apparent emission enhancement at 562 nm toward HOCl with high selectivity, superb sensitivity (detection limit: 12.6 nM), and rapid response (within seconds). Using the probe, the HOCl generation in diabetic human lens epithelial cells was monitored, as well as the HOCl down-regulation during antioxidant treatment. Therefore, it is proposed that HOCl can be a promising biomarker for DC and fluorescence imaging technique can be regarded as a candidate tool for DC diagnosis.
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Affiliation(s)
- Ruirui Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lili Lian
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China; Eye Hospital of Wenzhou Medical University, Wenzhou 325003, China
| | - Bingya Wang
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China
| | - Lei Zhu
- Institute of Biomedical Materials Industry Technology, Hubei Engineering University, Xiaogan 432000, China
| | - Yueping Ren
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China; Eye Hospital of Wenzhou Medical University, Wenzhou 325003, China.
| | - Jianliang Shen
- School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China; Department of Chemistry, Xihua University, Chengdu 610039, China.
| | - Ji-Ting Hou
- Institute of Biomedical Materials Industry Technology, Hubei Engineering University, Xiaogan 432000, China; School of Ophthalmology & Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, China.
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194
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To T, Terebessy E, Zhu J, Zhang K, Lakey PS, Shiraiwa M, Hatzopoulou M, Minet L, Weichenthal S, Dell S, Stieb D. Does early life exposure to exogenous sources of reactive oxygen species (ROS) increase the risk of respiratory and allergic diseases in children? A longitudinal cohort study. Environ Health 2022; 21:90. [PMID: 36184638 PMCID: PMC9528154 DOI: 10.1186/s12940-022-00902-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 09/12/2022] [Indexed: 06/01/2023]
Abstract
BACKGROUND Excess reactive oxygen species (ROS) can cause oxidative stress damaging cells and tissues, leading to adverse health effects in the respiratory tract. Yet, few human epidemiological studies have quantified the adverse effect of early life exposure to ROS on child health. Thus, this study aimed to examine the association of levels of ROS exposure at birth and the subsequent risk of developing common respiratory and allergic diseases in children. METHODS 1,284 Toronto Child Health Evaluation Questionnaire (T-CHEQ) participants were followed from birth (born between 1996 and 2000) until outcome, March 31, 2016 or loss-to-follow-up. Using ROS data from air monitoring campaigns and land use data in Toronto, ROS concentrations generated in the human respiratory tract in response to inhaled pollutants were estimated using a kinetic multi-layer model. These ROS values were assigned to participants' postal codes at birth. Cox proportional hazards regression models, adjusted for confounders, were then used to estimate hazard ratios (HR) with 95% confidence intervals (CI) per unit increase in interquartile range (IQR). RESULTS After adjusting for confounders, iron (Fe) and copper (Cu) were not significantly associated with the risk of asthma, allergic rhinitis, nor eczema. However, ROS, a measure of the combined impacts of Fe and Cu in PM2.5, was associated with an increased risk of asthma (HR = 1.11, 95% CI: 1.02-1.21, p < 0.02) per IQR. There were no statistically significant associations of ROS with allergic rhinitis (HR = 0.96, 95% CI: 0.88-1.04, p = 0.35) and eczema (HR = 1.03, 95% CI: 0.98-1.09, p = 0.24). CONCLUSION These findings showed that ROS exposure in early life significantly increased the childhood risk of asthma, but not allergic rhinitis and eczema.
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Affiliation(s)
- Teresa To
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada.
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Canada.
- ICES, Ontario, Canada.
| | - Emilie Terebessy
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Canada
| | - Jingqin Zhu
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Canada
- ICES, Ontario, Canada
| | - Kimball Zhang
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Canada
- ICES, Ontario, Canada
| | - Pascale Sj Lakey
- Department of Chemistry, University of California Irvine, Irvine, USA
| | - Manabu Shiraiwa
- Department of Chemistry, University of California Irvine, Irvine, USA
| | - Marianne Hatzopoulou
- Department of Civil and Mineral Engineering, University of Toronto, Toronto, Canada
| | - Laura Minet
- Department of Civil Engineering, University of Victoria, Victoria, Canada
| | - Scott Weichenthal
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada
- Water and Air Quality Bureau, Health Canada, Ottawa, Canada
| | - Sharon Dell
- Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
- Pediatric Respiratory Medicine, Provincial Health Services Authority, BC Children's Hospital, Vancouver, Canada
| | - Dave Stieb
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, Canada
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195
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A colorimetric/electrochemical dual-mode sensor based on Fe3O4@MoS2-Au NPs for high-sensitivity detection of hydrogen peroxide. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Tian Q, Wang W, Cao L, Tian X, Tian G, Chen M, Ma L, Liu X, Yuan Z, Cheng C, Guo Q. Multifaceted Catalytic ROS-Scavenging via Electronic Modulated Metal Oxides for Regulating Stem Cell Fate. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2207275. [PMID: 36082539 DOI: 10.1002/adma.202207275] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Developing reactive oxygen species (ROS)-scavenging nanostructures to protect and regulate stem cells has emerged as an intriguing strategy for promoting tissue regeneration, especially in trauma microenvironments or refractory wounds. Here, an electronic modulated metal oxide is developed via Mn atom substitutions in Co3 O4 nanocrystalline (Mn-Co3 O4 ) for highly efficient and multifaceted catalytic ROS-scavenging to reverse the fates of mesenchymal stem cells (MSCs) in oxidative-stress microenvironments. Benefiting from the atomic Mn-substitution and charge transfer from Mn to Co, the Co site in Mn-Co3 O4 displays an increased ratio of Co2+ /Co3+ and improved redox properties, thus enhancing its intrinsic and broad-spectrum catalytic ROS-scavenging activities, which surpasses most of the currently reported metal oxides. Consequently, the Mn-Co3 O4 can efficiently protect the MSCs from ROS attack and rescue their functions, including adhesion, spreading, proliferation, and osteogenic differentiation. This work not only establishes an efficient material for catalytic ROS-scavenging in stem-cell-based therapeutics but also provides a new avenue to design biocatalytic metal oxides via modulation of electronic structure.
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Affiliation(s)
- Qinyu Tian
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Beijing, 100853, China
| | - Weiwen Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Lijian Cao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 211198, China
| | - Xinggui Tian
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307, Dresden, Germany
| | - Guangzhao Tian
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Beijing, 100853, China
| | - Mingxue Chen
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Beijing, 100853, China
| | - Lang Ma
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xikui Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhiguo Yuan
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Quanyi Guo
- Institute of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Beijing, 100853, China
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197
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Hou L, Gong F, Han Z, Wang Y, Yang Y, Cheng S, Yang N, Liu Z, Cheng L. H
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Nanocatalysts Combined with Ultrasound for Triple Amplification of Oxidative Stress to Enhance Cancer Catalytic Therapy. Angew Chem Int Ed Engl 2022; 61:e202208849. [DOI: 10.1002/anie.202208849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Indexed: 10/16/2022]
Affiliation(s)
- Linqian Hou
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Fei Gong
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Zhihui Han
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Yuanjie Wang
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Yuqi Yang
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Shuning Cheng
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Nailin Yang
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Zhuang Liu
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
| | - Liang Cheng
- Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 China
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198
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Zhang S, Ouyang T, Reinhard BM. Multivalent Ligand-Nanoparticle Conjugates Amplify Reactive Oxygen Species Second Messenger Generation and Enhance Epidermal Growth Factor Receptor Phosphorylation. Bioconjug Chem 2022; 33:1716-1728. [PMID: 35993676 PMCID: PMC9815836 DOI: 10.1021/acs.bioconjchem.2c00335] [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: 01/11/2023]
Abstract
The epidermal growth factor (EGF) receptor (EGFR) is heterogeneously distributed on the cellular surface and enriched in clusters with diameters of tens of nanometers. Multivalent presentation of EGF ligand on nanoparticles (NPs) provides an approach for controlling and amplifying the local activation of EGFR in these clusters. Reactive oxygen species (ROS) have been indicated to play a role in the regulation of EGFR activation as second messengers, but the effect of nanoconjugation on EGF-mediated ROS formation and ROS-induced EGFR activation is not well established. The goal of this manuscript is to characterize the multivalent enhancement of EGF-induced ROS formation and to test its effect on EGFR phosphorylation in breast cancer cell models using gold (Au) NPs with a diameter of 81 ± 1 nm functionalized with two different EGF ligand densities (12 ± 7 EGF/NP (NP-EGF12) and 87 ± 6 EGF/NP (NP-EGF87)). In the EGFR overexpressing cell lines MDA-MB-231 and MDA-MB-468, NP-EGF87 achieved a measurable multivalent enhancement of ROS that peaked at concentrations c ROSmax ≤ 25 pM and that were EGFR and nicotinamide adenine dinucleotide phosphate oxidase (NOX) dependent. NP-EGF12 failed to generate comparable ROS levels as NP-EGF87 in the investigated NP input concentration range (0-100 pM). In cells with nearly identical numbers of bound NP-EGF87 and NP-EGF12, the ROS levels for NP-EGF87 were systematically higher, indicating that the multivalent enhancement is exclusively related not only to avidity but also to a stronger stimulation per NP. Importantly, the increase in EGF-induced ROS formation associated with EGF nanoconjugation at c ROSmax resulted in a measurable gain in EGFR phosphorylation, confirming that ROS generation contributes to the multivalent enhancement of EGFR activation in response to NP-EGF87.
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Affiliation(s)
- Sandy Zhang
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215
| | - Tianhong Ouyang
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215
| | - Björn M. Reinhard
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215
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199
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Ibrahim A, Muhammad SA. Antioxidant-Rich Nutraceutical as a Therapeutic Strategy for Sickle Cell Disease. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2022:1-10. [PMID: 36069788 DOI: 10.1080/27697061.2022.2108930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/23/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Sickle cell disease (SCD) is a genetically inherited disease in which the "SS" individual possesses two copies of the abnormal beta-globin gene. This disease is one of the most dominant genetic diseases in the world. SCD is marked by the propensity of red cell hemoglobin to polymerize and distort the red cell from a biconcave disk shape into a sickle shape, resulting in a typical vaso-occlusive episode and accelerated hemolysis. Plants are rich sources of bioactive compounds that are promising anti-sickling agents to scavenge free radicals, thereby ensuring oxidative balance. The current review highlights the potential therapeutic benefits of antioxidant-rich nutraceutical in the treatment and management of sickle cell disease. The anti-sickling potential of nutraceutical is attributed to the presence of antioxidant bioactive chemicals such as alkaloids, polyphenols, vitamins, and minerals, which acts as scavengers of free radicals that prevent oxidative damage of the hemoglobin and prevent hemolysis, facilitating longer erythrocyte lifespan. The challenges of current therapies for SCD and future directions are also discussed.KEY TEACHING POINTSSickle cell disease is a genetically inherited disease in which SS individuals possess two copies of the abnormal beta-globin gene.Oxidative stress contributes to the pathophysiology of secondary dysfunction in sickle cell patients.Antioxidants can play a vital role in maintaining a balance between oxidant and antioxidant defense systems.Nutraceutical rich in antioxidants such as alkaloids, polyphenols, vitamins, and minerals is potential therapeutic agents for sickle cell disease.An antioxidant-rich nutraceutical may act to reduce vaso-occlusive crises.
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Affiliation(s)
- Abdulwasiu Ibrahim
- Department of Biochemistry and Molecular Biology, Usmanu Danfodiyo University, Sokoto, Nigeria
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Bhardwaj SK, Knaus T, Garcia A, Yan N, Mutti FG. Bacterial Peroxidase on Electrochemically Reduced Graphene Oxide for Highly Sensitive H 2 O 2 Detection. Chembiochem 2022; 23:e202200346. [PMID: 35723909 PMCID: PMC9543142 DOI: 10.1002/cbic.202200346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Indexed: 11/09/2022]
Abstract
Peroxidase enzymes enable the construction of electrochemical sensors for highly sensitive and selective quantitative detection of various molecules, pathogens and diseases. Herein, we describe the immobilization of a peroxidase from Bacillus s. (BsDyP) on electrochemically reduced graphene oxide (ERGO) deposited on indium tin oxide (ITO) and polyethylene terephthalate (PET) layers. XRD, SEM, AFM, FT-IR and Raman characterization of the sensor confirmed its structural integrity and a higher enzyme surface occupancy. The BsDyP-ERGO/ITO/PET electrode performed better than other horseradish peroxidase-based electrodes, as evinced by an improved electrochemical response in the nanomolar range (linearity 0.05-280 μM of H2 O2 , LOD 32 nM). The bioelectrode was mechanically robust, active in the 3.5-6 pH range and exhibited no loss of activity upon storage for 8 weeks at 4 °C.
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Affiliation(s)
- Sheetal K. Bhardwaj
- Van't Hoff Institute for Molecular Sciences HIMS-Biocat & HetCatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Tanja Knaus
- Van't Hoff Institute for Molecular Sciences HIMS-Biocat & HetCatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Amanda Garcia
- Van't Hoff Institute for Molecular Sciences HIMS-Biocat & HetCatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Ning Yan
- Van't Hoff Institute for Molecular Sciences HIMS-Biocat & HetCatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Francesco G. Mutti
- Van't Hoff Institute for Molecular Sciences HIMS-Biocat & HetCatUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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