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Related Experiment Videos

Reverse engineering of biological complexity.

Marie E Csete1, John C Doyle

  • 1Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.

Science (New York, N.Y.)
|March 2, 2002
PubMed
Summary
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Advanced technologies and biology share surprising organizational similarities, driven by the need for robust, modular systems. Engineering principles reveal how complexity and feedback create both resilience and fragility in these systems.

Area of Science:

  • Systems biology
  • Engineering theory
  • Complexity science

Background:

  • Advanced technologies and biological systems, despite different physical forms, exhibit similar systems-level organization.
  • Convergent evolution in both domains leads to modular architectures with hierarchical protocols and feedback regulation.
  • These complex systems are designed for robustness in uncertain environments, often using imprecise components.

Purpose of the Study:

  • To explore the parallels between biological complexity and engineered systems.
  • To apply engineering theory to understand biological organization and function.
  • To elucidate the interplay between complexity, robustness, modularity, feedback, and fragility.

Main Methods:

  • Review of engineering theory and practice.

Related Experiment Videos

  • Comparative analysis of systems-level organization in technology and biology.
  • Examination of emergent properties like modularity and feedback regulation.

    • Main Results:

    • Both technological and biological systems display convergent evolution towards modular, hierarchical structures.
    • Robustness to environmental uncertainty is a key driver for complexity in both domains.
    • Imprecise components are common, contributing to system fragility and cascading failures.

    Conclusions:

    • The complexity observed in biological systems is not accidental but arises from fundamental principles shared with engineered systems.
    • Engineering insights can illuminate the deep interplay between complexity, robustness, and fragility in biology.
    • Understanding these shared principles is crucial for managing complex biological and technological systems.