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Towards a theory of development.

L Wolpert, J H Lewis

    Federation Proceedings
    |January 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    This study proposes a computational theory of biological development, viewing cellular processes as logical programs. It explores gene-switching networks and pattern formation for understanding organism development from genetic information.

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    Area of Science:

    • Developmental Biology
    • Computational Biology
    • Systems Biology

    Background:

    • Understanding the complete development of an organism from its genetic code remains a significant challenge.
    • Existing models often focus on molecular details, potentially obscuring fundamental principles of developmental processes.

    Purpose of the Study:

    • To propose a theoretical framework for biological development based on computational principles.
    • To model cellular development as a logical program executed by cells treated as automata.
    • To identify general principles governing pattern formation and cytodifferentiation.

    Main Methods:

    • Conceptual modeling of cellular development as a program.
    • Analysis of gene-switching networks to describe cellular internal states.

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  • Examination of cell-cell signaling and positional information interpretation.

    • Main Results:

    • Development is suggested to be a simpler process than often assumed, with cells having limited activities and simple signaling.
    • Gene-switching networks can explain cellular memory, competence, and positional interpretation.
    • Pattern formation is identified as a key process assigning cell states based on position.

    Conclusions:

    • A computational approach, abstracting molecular details, can reveal fundamental principles of development.
    • Gene-switching networks provide a basis for understanding complex developmental phenomena like pattern formation.
    • The organization of these networks into a complete developmental control system requires further investigation.