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Wu Q, Yang L, Zou L, Yang W, Liu Q, Zhang A, Cao J, Shi G, He J, Yang X. Small Ceria Nanoclusters with High ROS Scavenging Activity and Favorable Pharmacokinetic Parameters for the Amelioration of Chronic Kidney Disease. Adv Healthc Mater 2023; 12:e2300632. [PMID: 37167626 DOI: 10.1002/adhm.202300632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/08/2023] [Indexed: 05/13/2023]
Abstract
The over production of reactive oxygen species (ROS) plays a critical role in the progression of chronic kidney disease (CKD). Organic ROS scavengers currently used for CKD treatment do not satisfy low dosage and high efficiency requirements. Ceria nanomaterials featured with renewable ROS scavenging activity are potential candidates for CKD treatment. Herein, a method for the synthesis of ceria nanoclusters (NCs) featured with small size of ≈1.2 nm is reported. The synthesized NCs are modified by three hydrophilic ligands with different molecular weights, including succinic acid (SA), polyethylene glycol diacid 600 (PEG600), and polyethylene glycol diacid 2000 (PEG2000). The surface modified NCs exhibit excellent ROS scavenging activity due to the high Ce3+ /Ce4+ ratio in their crystal structures. Compared with bigger-sized ceria nanoparticles (NPs) (≈45 nm), NCs demonstrate smoother blood concentration-time curve, lower organ accumulation, and faster metabolic rate superiorities. The administration of NCs to CKD mice, especially PEG600 and PEG2000 modified NCs, can effectively inhibit oxidative stress, inflammation, renal fibrosis, and apoptosis in their kidneys. Due to these benefits, the constructed NCs can ameliorate the progression of CKD. These findings suggest that NCs is a potential redox nanomedicine for future clinical treatment of CKD.
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Affiliation(s)
- Qianqian Wu
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Lu Yang
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Ling Zou
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Wang Yang
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Qingshan Liu
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Anwei Zhang
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Jiang Cao
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Guangyou Shi
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Jian He
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
| | - Xiaochao Yang
- School of Biomedical Engineering and Medical Imaging, Army Medical University, Chongqing, 400038, China
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