An Infectious Virus‐like Particle Built on a Programmable Icosahedral DNA Framework**

作者：Yunyun Xu, Yuhe R. Yang, Qian Shi, Andrew B. Ward, Kui Huang, Xiao Chen, Wei Wang, Yang Yang · 发表于：Angewandte Chemie International Edition · 年份：2022 · DOI：10.1002/anie.202214731 · 被引用次数：29 · 研究领域：Advanced biosensing and bioanalysis techniques、Bacteriophages and microbial interactions、RNA Interference and Gene Delivery

Viral genomes can be compressed into a near-spherical nanochamber to form infectious particles. In order to mimic the virus morphology and packaging behavior, we invented a programmable icosahedral DNA nanoframe with enhanced rigidity and encapsulated the phiX174 bacteriophage genome. The packaging efficiency could be modulated through specific anchoring strands adjustment, and the trapped phage genome remained accessible for enzymatic operations. Moreover, the packed complex could infect Escherichia coli (E. coli) cells through bacterial uptake to produce plaques. This rigid icosahedral DNA architecture demonstrated a versatile platform to develop virus mimetic particles for convenient functional nucleic acid entrapment, manipulation and delivery.