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T-box genes in vertebrate development.

L A Naiche1, Zachary Harrelson, Robert G Kelly

  • 1Department of Genetics and Development, College of Physicians and Surgeons of Columbia University, New York, New York 10032, USA. nla2@columbia.edu

Annual Review of Genetics
|November 16, 2005
PubMed
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T-box genes are crucial for development across all animals, influencing cell fate, embryonic patterning, and organ formation. Mutations in these dosage-sensitive genes cause human developmental disorders and are linked to cancer.

Area of Science:

  • Developmental Biology
  • Genetics
  • Molecular Biology

Background:

  • T-box genes are a conserved family of transcription factors found in all metazoans.
  • These genes play critical roles in early embryonic development, including cell fate determination, extraembryonic structure development, and embryonic patterning.
  • T-box genes are frequently dosage-sensitive and implicated in human developmental syndromes and neoplastic processes.

Purpose of the Study:

  • To provide a comprehensive overview of the diverse developmental roles of T-box transcription factors.
  • To highlight the involvement of T-box genes in various signaling pathways and their downstream effects.
  • To underscore the significance of T-box genes in both normal development and disease states.

Main Methods:

  • Literature review of studies on T-box gene function.

Related Experiment Videos

  • Analysis of conserved roles across metazoan development.
  • Examination of human genetic data linking T-box mutations to syndromes and cancer.

    • Main Results:

    • T-box genes exhibit extensive and varied roles in organogenesis and embryonic patterning.
    • These transcription factors are integral components of key signaling cascades, including bone morphogenetic protein and fibroblast growth factor pathways.
    • Mutations in human T-box genes result in developmental dysmorphic syndromes, and several are associated with cancer.

    Conclusions:

    • The T-box gene family is fundamental to metazoan development, with broad implications for human health.
    • Understanding T-box gene function is critical for deciphering developmental processes and disease mechanisms.
    • Further research into T-box downstream targets will illuminate their complex regulatory networks.