A DNA Molecular Robot that Autonomously Walks on the Cell Membrane to Drive Cell Motility. (5th November 2021)

• Record Type: Journal Article
• Authors: Li, Hao; Gao, Jing; Cao, Lei; Xie, Xuan; Fan, Jiahui; Wang, Hongda; Wang, Hong‐Hui; Nie, Zhou
• Is Part Of: Angewandte Chemie. Volume 133:Number 50(2021)
• Page Start: 26291
• Page End: 26299
• Publication Date: 2021-11-05
• Subjects: cell manipulation -- DNA robots -- DNA walkers -- DNAzymes -- membrane receptors; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202108210
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Synthetic molecular robots can execute sophisticated molecular tasks at nanometer resolution. However, a molecular robot capable of controlling cellular behavior remains unexplored. Herein, we report a self‐propelled DNA robot operating on the cell membrane to control the migration of a cell. Driven by DNAzyme catalytic activity, the DNA robot could autonomously and stepwise move on the membrane‐floating cell‐surface receptors in a stochastic manner and simultaneously trigger the receptor‐dimerization to activate downstream signaling for cell motility. The cell membrane‐associated continuous motion and operation of a DNA robot allowed for the ultrasensitive regulation of MET/AKT signaling and cytoskeleton remodeling to enhance cell migration. Finally, we designed distinct conditional DNA robots to orthogonally manipulate the cell migration in a coculture of mixed cell populations. We have developed a novel strategy to engineer a cell‐driving molecular robot, representing a promising avenue for precise cell manipulation with nanoscale resolution. Abstract : A DNA molecular robot that autonomously walks on the cell membrane to drive the cell motility has been developed. The DNA robot could move stepwise on the membrane‐floating cell‐surface receptors in a stochastic manner and simultaneously trigger the receptor‐dimerization to activate downstream signal pathway regulation of desired cellular behavior.