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Three-dimensional DNA nanocages have attracted significant attention for various biomedical applications including targeted bioimaging . Despite the numerous advantages, the use and exploration of DNA nanocages are limited as the cellular targeting and intracellular fate of these DNA nanocages within various model systems have not been explored well. Herein, using a zebrafish model system, we provide a detailed understanding of time-, tissue- and geometry-dependent DNA nanocage uptake in developing embryos and larvae. Of all the geometries tested, tetrahedrons showed significant internalization in 72 hours post-fertilized larvae upon exposure, without disturbing the expression of genes involved in embryo development. Our study provides a detailed understanding of the time and tissue-specific uptake of DNA nanocages in the zebrafish embryos and larvae. These findings will provide valuable insights into the internalization and biocompatible potential of DNA nanocages and will help to predict their candidature for biomedical applications.
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http://dx.doi.org/10.1039/d2na00905f | DOI Listing |
Anal Chem
September 2025
Institute of Molecular Medicine (IMM), Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China.
Membrane receptor recognition is a specific biotargeting strategy for disease diagnosis and treatment, but it suffers from insufficient receptor expression levels. Hydrophobic interaction-based membrane anchoring strategy allows high anchoring density, but it lacks specificity. In this study, we present a DNA nanocage-based artificial receptor generator (DNARG) that combines the advantages of high specificity of receptor recognition and high density of hydrophobic membrane anchoring.
View Article and Find Full Text PDFJ Med Chem
September 2025
Nanozyme Laboratory in Zhongyuan, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou450001, China.
Cisplatin resistance remains a major clinical challenge in cancer therapy, often driven by the upregulation of DNA repair pathways. Here, we present a dual-functional nanotherapeutic system (HFn-NERiP-Pt(IV)) combining a glutathione-responsive PROTAC (NERiP) with a ferritin nanocarrier for targeted ERCC1/XPF degradation and enhanced platinum delivery. NERiP selectively degrades ERCC1/XPF upon release in reductive tumor environments, suppressing nucleotide excision repair and enhancing platinum cytotoxicity.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
August 2025
Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P.R. China.
Synthetic organelles have emerged to simulate the multicompartmental organization and communication within cells. However, current synthetic organelles (e.g.
View Article and Find Full Text PDFbioRxiv
May 2025
Biophysics Program, Stanford University School of Medicine, Stanford, CA, USA.
Consistently accurate 3D nucleic acid structure prediction would facilitate studies of the diverse RNA and DNA molecules underlying life. In CASP16, blind predictions for 42 targets canvassing a full array of nucleic acid functions, from dopamine binding by DNA to formation of elaborate RNA nanocages, were submitted by 65 groups from 46 different labs worldwide. In contrast to concurrent protein structure predictions, performance on nucleic acids was generally poor, with no predictions of previously unseen natural RNA structures achieving TM-scores above 0.
View Article and Find Full Text PDFVaccines (Basel)
June 2025
Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität München, 80539 Munich, Germany.
Self-assembling protein nanocages (SAPNs) are distinct natural structures formed by the self-assembly of identical subunits, providing a highly efficient platform and a novel strategy for vaccine development and RNAi therapy. Their internal cavity allows for precise cargo encapsulation, while the externally modifiable surface supports multivalent antigen presentation, thereby enhancing stability, targeted delivery, and immune activation. In addition to serving as stable subunit vaccines with multivalent antigen display, SAPNs can be incorporated into mRNA vaccines (SAPN-RNA vaccines) by pre-fusing with the antigen.
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