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An Enzyme-Responsive Self-Immolative Recognition Marker for Manipulating Cell-Cell Interactions.

Chad Plumet1, Spyridon D Katsakos1, Mélissa Girard1

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Summary

Researchers engineered enzyme-sensitive markers for cell membrane engineering. These markers enable controlled cell assembly and disassembly, offering new ways to study cell proximity effects like cancer cell behavior.

Keywords:
bioorthogonal chemistrychemical biologymetabolic glycoengineeringnon‐covalent click chemistryself‐immolative linker

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Area of Science:

  • Biochemistry and Molecular Biology
  • Cell Biology
  • Chemical Biology

Background:

  • Cell-cell interactions are crucial for biological processes.
  • Engineering cell membranes offers opportunities to study and manipulate these interactions.
  • Current methods for controlling cell adhesion are limited.

Purpose of the Study:

  • To design and develop enzyme-sensitive recognition markers for cell surface functionalization.
  • To enable controlled, reversible cell-cell assembly using bioorthogonal and click chemistry.
  • To investigate the impact of artificial cell adhesion on cancer cell proliferation and migration.

Main Methods:

  • Utilizing bioorthogonal chemistry to introduce enzyme-sensitive markers onto cell surfaces.
  • Employing non-covalent click chemistry for complementary marker-mediated cell assembly.
  • Enzymatic activation of markers to trigger cell disassembly.
  • Monitoring cancer cell proliferation and migration rates.

Main Results:

  • Successfully functionalized cell surfaces with enzyme-sensitive markers.
  • Demonstrated controlled cell assembly and disassembly via complementary markers.
  • Observed inhibition of cancer cell proliferation and migration upon artificial cell adhesion.
  • Showed restoration of cancer cell proliferation and migration upon marker-induced disassembly.

Conclusions:

  • Developed versatile, ready-to-use complementary markers for precise control over cell-cell bond formation and breakage.
  • Established a novel platform for investigating biological processes influenced by cell proximity.
  • Highlighted the potential of engineered cell adhesion in understanding and potentially modulating cancer progression.