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Spatiotemporal control of cell-cell reversible interactions using molecular engineering.

Peng Shi1,2, Enguo Ju1,2, Zhengqing Yan1,2

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Scientists engineered cell membranes for reversible control of cell interactions using light. This breakthrough enables controllable cell assembly and disassembly for potential cell-based therapies.

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Area of Science:

  • Biotechnology
  • Cell Biology
  • Chemical Biology

Background:

  • Cell-cell interactions are crucial for biological processes and therapeutic applications.
  • Existing methods for manipulating cell interactions often result in irreversible changes.
  • Developing controllable and reversible methods for cell interaction is a significant challenge.

Purpose of the Study:

  • To engineer cell membranes for light-controllable, reversible manipulation of cell-cell interactions.
  • To demonstrate the application of this methodology in a cell-based therapy model.

Main Methods:

  • Metabolic glycan labeling and bio-orthogonal click chemistry were used to engineer cell membranes with beta-cyclodextrin.
  • Photo-responsive host-guest recognition was employed to control cell assembly and disassembly.
  • Peripheral blood mononuclear cells were modified with aptamers for targeted cell therapy.

Main Results:

  • Demonstrated reversible light-controllable assembly and disassembly of cells.
  • Achieved precise control over cell-cell adhesion, overcoming limitations of irreversible methods.
  • Successfully redirected modified immune cells to target cells, enhancing apoptosis in a therapeutic model.

Conclusions:

  • The developed methodology offers precise and reversible control over cell-cell interactions.
  • This approach has significant potential for advancing cell-based therapies and basic research.
  • The light-controllable system provides a novel platform for dynamic cell manipulation.