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Li J, Zhu Q, Wu Y, Lin F, Liu L, Chen L, Wang S, Song L. Synthesis, Characterization, and Applications of Rare-Earth-Based Complexes with Antibacterial and Antialgal Properties. ACS APPLIED BIO MATERIALS 2024; 7:104-113. [PMID: 38149377 DOI: 10.1021/acsabm.3c00424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
The pursuit of environmentally friendly and highly effective antifouling materials for marine applications is of paramount importance. In this study, we successfully synthesized novel rare earth-based complexes by coordinating cerium (Ce III), samarium (Sm III), and europium (Eu III) with pyrithione (1-hydroxy-2-pyridinethione; PT). Extensive characterizations were performed, including single-crystal X-ray analysis, which revealed the intriguing binuclear structure of these complexes. This structural motif comprises two rare-earth ions intricately double-bridged by two oxygen atoms from the PT ligand, resulting in a distinctive and intriguing geometry. Furthermore, the central rare earth ion is surrounded by three sulfur atoms and two additional oxygen atoms, forming a unique distorted bicapped trigonal prismatic configuration. Compared with conventional antifouling biocides such as sodium pyrithione (NaPT), copper pyrithione (CuPT), and zinc pyrithione (ZnPT), these newly synthesized rare-earth complexes exhibited a remarkable boost in their in vitro antibacterial efficacy against both Gram-positive and Gram-negative bacteria. Additionally, these complexes demonstrated significant potential as antialgal agents, displaying impressive activity against marine planktonic organisms. These findings underscore the promising application prospects of these rare-earth complexes in the field of marine antifouling.
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Affiliation(s)
- Jinlei Li
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
| | - Qiuyin Zhu
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
| | - Yincai Wu
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Fenglong Lin
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Linze Liu
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
| | - Libin Chen
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
| | - Shenglong Wang
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Lijun Song
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Haixi Research Institute, Xiamen, Fujian 361021, China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
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Mueller PP, Grueter P, Hinnebusch AG, Trachsel H. A ribosomal protein is required for translational regulation of GCN4 mRNA. Evidence for involvement of the ribosome in eIF2 recycling. J Biol Chem 1998; 273:32870-7. [PMID: 9830035 DOI: 10.1074/jbc.273.49.32870] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In amino acid-starved yeast cells, inhibition of the guanine nucleotide exchange factor eIF2B by phosphorylated translation initiation factor 2 results in increased translation of GCN4 mRNA. We isolated a suppressor of a mutant eIF2B. The suppressor prevents efficient GCN4 mRNA translation due to inactivation of the small ribosomal subunit protein Rps31 and results in low amounts of mutant 40 S ribosomal subunits. Deletion of one of two genes encoding ribosomal protein Rps17 also reduces the amounts of 40 S subunits but does not suppress eIF2B mutations or prevent efficient GCN4 translation. Our findings show that Rps31-deficient ribosomes are altered in a way that decreases the eIF2B requirement and that the small ribosomal subunit mediates the effects of low eIF2B activity on cell viability and translational regulation in response to eIF2 phosphorylation.
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Affiliation(s)
- P P Mueller
- Institute of Biochemistry and Molecular Biology, University of Berne, CH-3012 Berne, Switzerland.
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