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Binary developmental commitments in normal and abnormal human morphogenesis

J M Friedman

    Clinical Genetics
    |July 1, 1980
    PubMed
    Summary
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    This study proposes that overlapping anomalies in malformation syndromes arise from sequential cell commitments during human development. These commitments to alternative developmental programs explain complex patterns of birth defects.

    Area of Science:

    • Developmental Biology
    • Human Genetics
    • Teratology

    Background:

    • Malformation syndromes often present with overlapping patterns of anomalies.
    • Understanding the underlying mechanisms of human morphogenesis is crucial for explaining these complex presentations.

    Purpose of the Study:

    • To present a novel hypothesis for the occurrence of overlapping anomalies in malformation syndromes.
    • To propose a model for normal human morphogenesis based on cellular developmental programs.

    Main Methods:

    • This study is primarily theoretical, presenting a hypothesis.
    • The hypothesis is based on established principles of developmental biology and cell commitment.

    Main Results:

    • The proposed hypothesis suggests that normal human morphogenesis involves sequential commitments of neighboring cell groups.

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  • These commitments are to alternative developmental programs, leading to specific tissue and organ formation.

    • Conclusions:

    • Overlapping patterns of anomalies in malformation syndromes can be explained by disruptions in these sequential cell commitment processes.
    • This hypothesis provides a framework for understanding the etiology of various congenital anomalies.