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Multicellular computing using conjugation for wiring.

Angel Goñi-Moreno1, Martyn Amos, Fernando de la Cruz

  • 1Systems Biology Program, Centro Nacional de Biotecnología CSIC, Cantoblanco-Madrid, Spain. agoni@cnb.csic.es

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|July 11, 2013
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Summary
This summary is machine-generated.

Synthetic biology uses multicellular systems for computation. This study introduces a novel cell-cell conjugation method for distributed logic, enabling bacteria to compute Boolean XOR functions with higher information transfer than quorum sensing.

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Area of Science:

  • Synthetic Biology
  • Computational Biology
  • Microbiology

Background:

  • Synthetic biology aims to engineer logical functions in cells for control and reprogramming.
  • Multicellular systems offer advantages over single-cell engineering by distributing computation.
  • Existing communication methods like quorum sensing (QS) lack specificity and have limited information transfer capacity.

Purpose of the Study:

  • To propose and demonstrate a novel cell-cell conjugation scheme for distributed cellular computation.
  • To design a multicellular system capable of computing a Boolean XOR function.
  • To establish a general framework for conjugation-wired distributed logic in microbial populations.

Main Methods:

  • Designing a multicellular bacterial population to perform distributed Boolean logic.
  • Utilizing specific cell-cell conjugation for direct genetic information transfer via plasmids.
  • Employing computational modeling and simulation (deterministic, stochastic, spatially-explicit) to analyze system behavior.

Main Results:

  • Successfully designed a multicellular system that computes a Boolean XOR function in a distributed manner.
  • Demonstrated that cell-cell conjugation allows significantly higher information exchange compared to QS.
  • Simulation results provide a baseline for future laboratory implementations of conjugation-wired cellular computing.

Conclusions:

  • Cell-cell conjugation offers a robust and high-bandwidth communication channel for distributed cellular computation.
  • The proposed scheme enables a general approach to distributed logic by mixing bacterial strains.
  • This work lays the foundation for advanced multicellular computing systems with enhanced capabilities.