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Ban Y, Zhou F, Wang H, Zhang F, Xia M, Wan Y, Yang S, Liu R, Wang X, Wang G. Dual-Stimuli Regulation of DNAzyme Cleavage Reaction by Coordination-Driven Nanoprobes for Cancer Cell Imaging. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38833714 DOI: 10.1021/acsami.4c04033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Endowing current artificial chemical reactions (ACRs) with high specificity and intricate activation capabilities is crucial for expanding their applications in accurate bioimaging within living cells. However, most of the reported ACR-based evaluations relied on either single biomarker stimuli or dual activators without obvious biological relevance, still limiting their accuracy and fidelity. Herein, taking the metal-ion-dependent DNAzyme cleavage reaction as a model ACR, two regulators, glutathione (GSH) and telomerase (TE) activated DNAzyme cleavage reactions, were exploited for precise discrimination of cancerous cells from normal cells. DNA probe was self-assembled into the ZIF-90 nanoparticle framework to construct coordination-driven nanoprobes. This approach enhances the stability and specificity of tumor imaging by utilizing biomarkers associated with rapid tumor proliferation and those commonly overexpressed in tumors. In conclusion, the research not only paves the way for new perspectives in cell biology and pathology studies but also lays a solid foundation for the advancement of biomedical imaging and disease diagnostic technologies.
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Affiliation(s)
- Yinbo Ban
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Fu Zhou
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Hao Wang
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Fuqiang Zhang
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Mengmeng Xia
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Yifei Wan
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Suwan Yang
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Rong Liu
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
| | - Xiayan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Biology, Beijing University of Technology, Beijing 100124, P. R. China
| | - Guangfeng Wang
- College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, Anhui Province Key Laboratory of Chem-Biosensing, and Anhui Province Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, China
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Dulic M, Godinic-Mikulcic V, Kekez M, Evic V, Rokov-Plavec J. Protein-Protein Interactions of Seryl-tRNA Synthetases with Emphasis on Human Counterparts and Their Connection to Health and Disease. Life (Basel) 2024; 14:124. [PMID: 38255739 PMCID: PMC10817482 DOI: 10.3390/life14010124] [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: 12/06/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Seryl-tRNA synthetases (SerRSs), members of the aminoacyl-tRNA synthetase family, interact with diverse proteins, enabling SerRSs to enhance their role in the translation of the genetic message or to perform alternative functions in cellular processes beyond translation. Atypical archaeal SerRS interacts with arginyl-tRNA synthetase and proteins of the ribosomal P-stalk to optimize translation through tRNA channeling. The complex between yeast SerRS and peroxin Pex21p provides a connection between translation and peroxisome function. The partnership between Arabidopsis SerRS and BEN1 indicates a link between translation and brassinosteroid metabolism and may be relevant in plant stress response mechanisms. In Drosophila, the unusual heterodimeric mitochondrial SerRS coordinates mitochondrial translation and replication via interaction with LON protease. Evolutionarily conserved interactions of yeast and human SerRSs with m3C32 tRNA methyltransferases indicate coordination between tRNA modification and aminoacylation in the cytosol and mitochondria. Human cytosolic SerRS is a cellular hub protein connecting translation to vascular development, angiogenesis, lipogenesis, and telomere maintenance. When translocated to the nucleus, SerRS acts as a master negative regulator of VEGFA gene expression. SerRS alone or in complex with YY1 and SIRT2 competes with activating transcription factors NFκB1 and c-Myc, resulting in balanced VEGFA expression important for proper vascular development and angiogenesis. In hypoxia, SerRS phosphorylation diminishes its binding to the VEGFA promoter, while the lack of nutrients triggers SerRS glycosylation, reducing its nuclear localization. Additionally, SerRS binds telomeric DNA and cooperates with the shelterin protein POT1 to regulate telomere length and cellular senescence. As an antitumor and antiangiogenic factor, human cytosolic SerRS appears to be a promising drug target and therapeutic agent for treating cancer, cardiovascular diseases, and possibly obesity and aging.
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Affiliation(s)
| | | | | | | | - Jasmina Rokov-Plavec
- Division of Biochemistry, Department of Chemistry, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia; (M.D.); (V.G.-M.); (M.K.); (V.E.)
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Vaquero-Sedas MI, Vega-Palas MA. A Nested PCR Telomere Fusion Assay Highlights the Widespread End-Capping Protection of Arabidopsis CTC1. Int J Mol Sci 2024; 25:672. [PMID: 38203842 PMCID: PMC10779545 DOI: 10.3390/ijms25010672] [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] [Received: 10/20/2023] [Revised: 11/15/2023] [Accepted: 11/18/2023] [Indexed: 01/12/2024] Open
Abstract
Telomeres protect the ends of linear eukaryotic chromosomes from being recognized as DNA double-strand breaks. Two major protein complexes are involved in the protection of telomeres: shelterin and CST. The dysfunction of these complexes can challenge the function of telomeres and lead to telomere fusions, breakage-fusion-bridge cycles, and cell death. Therefore, monitoring telomere fusions helps to understand telomeres biology. Telomere fusions are often analyzed by Fluorescent In Situ Hybridization (FISH) or PCR. Usually, both methods involve hybridization with a telomeric probe, which allows the detection of fusions containing telomeric sequences, but not of those lacking them. With the aim of detecting both types of fusion events, we have developed a nested PCR method to analyze telomere fusions in Arabidopsis thaliana. This method is simple, accurate, and does not require hybridization. We have used it to analyze telomere fusions in wild-type and mutant plants altered in CTC1, one of the three components of the Arabidopsis CST telomere capping complex. Our results show that null ctc1-2 mutant plants display fusions between all telomeric regions present in Arabidopsis chromosomes 1, 3 and 5, thus highlighting the widespread end-capping protection achieved by CTC1.
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Affiliation(s)
| | - Miguel A. Vega-Palas
- Instituto de Bioquímica Vegetal y Fotosíntesis, CSIC-Universidad de Sevilla, IBVF (CSIC-US), E41092 Seville, Spain;
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