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Liu Y, Wang P, Hu W, Chen D. New insights into the roles of peroxiredoxins in cancer. Biomed Pharmacother 2023; 164:114896. [PMID: 37210897 DOI: 10.1016/j.biopha.2023.114896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/09/2023] [Accepted: 05/15/2023] [Indexed: 05/23/2023] Open
Abstract
Oxidative stress is one of the hallmarks of cancer. Tumorigenesis and progression are accompanied by elevated reactive oxygen species (ROS) levels and adaptive elevation of antioxidant expression levels. Peroxiredoxins (PRDXs) are among the most important antioxidants and are widely distributed in a variety of cancers. PRDXs are involved in the regulation of a variety of tumor cell phenotypes, such as invasion, migration, epithelial-mesenchymal transition (EMT) and stemness. PRDXs are also associated with tumor cell resistance to cell death, such as apoptosis and ferroptosis. In addition, PRDXs are involved in the transduction of hypoxic signals in the TME and in the regulation of the function of other cellular components of the TME, such as cancer-associated fibroblasts (CAFs), natural killer (NK) cells and macrophages. This implies that PRDXs are promising targets for cancer treatment. Of course, further studies are needed to realize the clinical application of targeting PRDXs. In this review, we highlight the role of PRDXs in cancer, summarizing the basic features of PRDXs, their association with tumorigenesis, their expression and function in cancer, and their relationship with cancer therapeutic resistance.
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Affiliation(s)
- Yan Liu
- First Department of Oncology, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China
| | - Pu Wang
- Department of Emergency, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China
| | - Weina Hu
- Department of General Practice, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China.
| | - Da Chen
- Department of Emergency, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China.
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Cui X, Hu T, Wu H, Zhang J, Yang L, Zhong X, Wu X, Wang J, Li X, Yang J, Gao C. Charge Carrier Transport Behavior and Dielectric Properties of BaF 2:Tb 3+ Nanocrystals. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:nano10010155. [PMID: 31963179 PMCID: PMC7023190 DOI: 10.3390/nano10010155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/09/2020] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
The charge carrier behavior and dielectric properties of BaF2:Tb3+ nanocrystals have been studied by alternating current (AC) impedance spectroscopy. The electron and ion coexist in the transport process. The F- ion's contribution to the total conduction increases with the doping concentration up to 4% and then decreases. Tb doping leads to the increase of defect quantities and a variation of charge carrier transport paths, which causes the increase of the ion diffusion coefficient and the decreases of bulk and grain boundary resistance. When the Tb-doped concentration is higher than 4%, the effect of deformation potential scattering variation on the transport property is dominant, which results in the decrease of the ion diffusion coefficient and increases of bulk and grain boundary resistance. The conduction properties of our BaF2:Tb3+ nanocrystals are compared with previous results that were found for the single crystals of rare earth-doped BaF2. Tb doping causes increases of both the quantity and the probability of carrier hopping, and it finally leads to increases of BaF2 nanocrystals' permittivity in the low frequency region.
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Affiliation(s)
- Xiaoyan Cui
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Tingjing Hu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Huangyu Wu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Junkai Zhang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Lihua Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Xin Zhong
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Xiaoxin Wu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Jingshu Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Xuefei Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China; (X.C.); (H.W.); (J.Z.); (L.Y.); (X.Z.); (X.W.); (J.W.); (X.L.); (J.Y.)
| | - Chunxiao Gao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
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Synthesis of CaF 2 Nanoparticles Coated by SiO 2 for Improved Al 2O 3/TiC Self-Lubricating Ceramic Composites. NANOMATERIALS 2019; 9:nano9111522. [PMID: 31731487 PMCID: PMC6915338 DOI: 10.3390/nano9111522] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/22/2019] [Accepted: 10/22/2019] [Indexed: 01/01/2023]
Abstract
In order to reduce the influence of CaF2 addition on the mechanical properties of self-lubricating ceramic tools, we applied a silicon dioxide (SiO2) coating on calcium fluoride (CaF2) nanoparticles through hydrolysis and condensation reactions using the tetraethoxysilane (TEOS) method. The powder was dried by the azeotropic method, so that it acquired a better dispersibility. The resulting composite powders were characterized using XRD (X-ray diffraction) and TEM (transmission electron microscopy), showing that the surface of CaF2 was coated with a layer of uniform and compact SiO2. SiO2 shells with different thicknesses could be obtained by changing the amount of TEOS added, and the thickness of the SiO2 shells could be controlled between 1.5 and 15 nm. At the same time, a ceramic material containing CaF2 nanoparticles and CaF2@SiO2-coated nanoparticles was prepared. It had the best mechanical properties when CaF2@SiO2-coated nanoparticles were added; its flexural strength, fracture toughness, and hardness were 562 ± 28 MPa, 5.51 ± 0.26 MPa·m1/2, and 15.26 ± 0.16 GPa, respectively. Compared with the ceramic tool containing CaF2 nanoparticles, these mechanical properties were increased by 17.57%, 12.67%, and 4.88%, respectively. The addition of CaF2@SiO2-coated nanoparticles greatly improved the antifriction and wear resistance of the ceramic material, and the antifriction and wear resistance were balanced.
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Ionic Transportation and Dielectric Properties of YF₃:Eu 3+ Nanocrystals. NANOMATERIALS 2018; 8:nano8120995. [PMID: 30513769 PMCID: PMC6315919 DOI: 10.3390/nano8120995] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 11/30/2022]
Abstract
The ionic transportation and dielectric properties of YF3:Eu3+ nanocrystals are investigated by AC impedance spectroscopy. The ion diffusion coefficient and conductivity increase along with the doping concentration and reach their highest values at 4% of Eu3+. The difference of ionic radius between Eu3+ and Y3+ leads to the structural disorder and lattice strain, which deduces the increase of the ion diffusion coefficient and conductivity before 4% Eu3+ doping; then the interaction of the neighboring doping ions is dominated, which results in the difficulty of ion migration and decreases of the ion diffusion coefficient and conductivity. The strong dispersion of the permittivity in the low frequency region indicates that the charge carrier transport mechanism is the ion hopping in the system. The low-frequency hopping dispersion is affected by an interfacial polarization, which exhibits a Maxwell-Wagner relaxation process, and its loss peak shifts to higher frequency with the ionic conductivity increasing.
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