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Cell Surface Engineering Using DNAzymes: Metal Ion Mediated Control of Cell-Cell Interactions
Ruo-Can Qian1, Ze-Rui Zhou1, Weijie Guo
1Key Laboratory for Advanced Materials, Feringa Nobel Prize Scientist Joint Research Center, Joint International Laboratory for Precision Chemistry, Frontiers Science Center for Materiobiology & Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
Researchers developed a novel DNAzyme-based method for controlling cell interactions using metal ions. This breakthrough enables precise cell assembly and disassembly, advancing cell fate control and therapy applications.
Area of Science:
- Biotechnology
- Synthetic Biology
- Cell Biology
Background:
- Cell surface engineering is crucial for controlling cell behaviors in research and therapy.
- Existing methods for cell assembly lack precise control over disassembly, especially using metal ions.
Purpose of the Study:
- To develop a novel strategy for controllable cell-cell interactions (assembly and disassembly) triggered by metal ions.
- To demonstrate the application of DNAzymes for dynamic regulation of cell behaviors.
Main Methods:
- Utilized metal-dependent DNAzymes and substrate strands to create DNA double-chain switches.
- Engineered cell surfaces for metal ion-triggered interactions.
- Applied the system to control the assembly and disassembly of cell spheroids.
Main Results:
- Successfully demonstrated controllable cell-cell conjunctions and disaggregation using metal ions.
- Developed a two-factor disassembly system using Zn2+- and Mg2+-specific DNAzymes.
- Showcased the method's efficacy in regulating spheroid assembly and disassembly.
Conclusions:
- The DNAzyme-based strategy offers a smart and versatile platform for dynamic cell behavior regulation.
- This approach provides precise control over cell-cell interactions, applicable to cell fate control and cell therapy.
- The method's modularity allows for adaptation with various metal-specific DNAzymes for diverse applications.
