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Programming multicellular assembly with synthetic cell adhesion molecules.

Adam J Stevens1,2,3, Andrew R Harris3,4,5, Josiah Gerdts1,2,3,6

  • 1UCSF Cell Design Institute, University of California, San Francisco, CA, USA.

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Summary
This summary is machine-generated.

Researchers created synthetic cell adhesion molecules by combining natural protein parts. These engineered molecules allow precise control over cell interactions, enabling custom tissue assembly and engineering applications.

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Area of Science:

  • Biochemistry and Molecular Biology
  • Cell Biology
  • Biomaterials Science

Background:

  • Cell adhesion molecules (CAMs) are crucial for multicellular organism function, mediating cell-cell interactions in development, immunity, and neuroscience.
  • Native CAMs like cadherins and integrins play vital roles but lack modularity for precise engineering.
  • Understanding the structure-function relationship of CAMs is key to controlling cellular organization.

Purpose of the Study:

  • To develop a toolkit of synthetic cell adhesion molecules with customizable interaction properties.
  • To investigate how synthetic CAMs can be used for programmed assembly of multicellular structures.
  • To explore the potential of synthetic CAMs for tissue engineering and studying multicellular organization.

Main Methods:

  • Generation of synthetic CAMs by combining orthogonal extracellular interaction domains with intracellular domains from native CAMs (e.g., cadherins, integrins).
  • Characterization of cell-cell interactions mediated by synthetic CAMs, analyzing adhesion properties, interface morphology, and mechanics.
  • Demonstration of programmed assembly of multicellular architectures using the synthetic CAM toolkit.

Main Results:

  • A diverse array of synthetic CAMs were successfully generated, exhibiting customized cell-cell interactions with native-like adhesion properties.
  • The intracellular domain determined interface morphology and mechanics, while extracellular domains controlled cell connectivity (homotypic/heterotypic).
  • Synthetic CAMs enabled rational programming of multicellular architectures and systematic remodeling of native tissues.

Conclusions:

  • Synthetic cell adhesion molecules offer a modular platform for precisely controlling cell-cell interactions.
  • This toolkit provides fundamental insights into the evolution of cell-cell interfaces and enables advanced cell and tissue engineering.
  • The synthetic CAMs represent powerful tools for systematically studying and manipulating multicellular organization.