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Endocrine regulation of HOX genes.

Gaurang S Daftary1, Hugh S Taylor

  • 1Division of Reproductive Endocrinology, Yale University School of Medicine, 333 Cedar Street, P.O. Box 208063, New Haven, Connecticut 06520-8063, USA.

Endocrine Reviews
|April 25, 2006
PubMed
Summary

Hormones regulate Hox genes, crucial for development and adult function. This endocrine control impacts embryonic development, reproduction, and can lead to disease when dysregulated.

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Area of Science:

  • Developmental Biology
  • Endocrinology
  • Genetics

Background:

  • Hox genes are critical transcription factors for embryonic development and adult tissue function.
  • Regulatory mechanisms controlling Hox gene expression are not fully understood.
  • Hormones and their receptors are emerging as key regulators of Hox genes.

Purpose of the Study:

  • To review the role of endocrine regulation in controlling Hox gene expression.
  • To discuss the impact of this regulation on embryonic development and adult physiology.
  • To explore the link between dysregulated Hox gene expression and human pathology.

Main Methods:

  • Literature review of studies on hormone-mediated Hox gene regulation.
  • Analysis of the role of hormones like estradiol, progesterone, testosterone, retinoic acid, and vitamin D.
  • Examination of endocrine disruptors' effects on embryonic Hox gene expression.

Main Results:

  • Hormonal signals direct axial Hox gene expression during embryogenesis.
  • Aberrant Hox gene expression due to endocrine disruptors causes teratogenicity.
  • Adult endocrine regulation of Hox genes is vital for hematopoiesis and reproduction.

Conclusions:

  • Hormonal regulation of Hox genes is a conserved mechanism for generating diversity in development and adult tissues.
  • Endocrinopathies can lead to dysregulated Hox gene expression, impacting physiology.
  • Understanding endocrine Hox regulation is crucial for addressing human pathologies.

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