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Production of Nurr-1 Specific Polyclonal Antibodies Free of Cross-reactivity Against Its Close Homologs, Nor1 and Nur77
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Production of Nurr-1 Specific Polyclonal Antibodies Free of Cross-reactivity Against Its Close Homologs, Nor1 and Nur77

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Nur77 family of nuclear hormone receptors

Hui-Chen Hsu1, Tong Zhou, John D Mountz

  • 1The University of Alabama at Birmingham, Department of Medicine, Division of Clinical Immunology and Rheumatology, Birmingham, Alabama 35294, USA.

Current Drug Targets. Inflammation and Allergy
|December 9, 2004
PubMed

Insights

The Nur77 family of orphan nuclear receptors (Nur77, Nurr1, Nor-1) are crucial in cell death and growth regulation. Their diverse roles in immunity, development, and disease highlight their potential as drug targets.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Endocrinology

Background:

  • Nuclear receptors, including steroidal and orphan types, regulate critical cellular processes like apoptosis.
  • The Nur77 family of orphan receptors (Nur77, Nurr1, Nor-1) are key transcription factors with roles beyond the nervous system, impacting T lymphocytes and other tissues.
  • These receptors interact with co-factors and exhibit context-dependent functions based on cellular localization (mitochondria vs. nucleus).

Purpose of the Study:

  • To review recent studies on the Nur77 orphan receptor family.
  • To integrate the significance of nuclear receptors in health and disease.
  • To compare the mechanisms of action of classic steroid/endocrine receptors and orphan receptors for novel drug target identification.

Main Methods:

  • Literature review of recent studies on Nur77 family orphan receptors.
  • Comparative analysis of biochemical mechanisms between steroid/endocrine and orphan nuclear receptors.
  • Integration of findings on the physiological roles and regulatory mechanisms of Nur77 subfamily members.

Main Results:

  • Nur77 family members are involved in early embryogenesis, thymocyte selection, and immune responses.
  • These receptors regulate gene expression in the hypothalamic-pituitary adrenal axis and vascular smooth muscle cell proliferation.
  • Differential roles in cell death and growth are observed based on subcellular localization (mitochondria vs. nucleus).

Conclusions:

  • The Nur77 orphan receptor family plays vital roles in diverse physiological processes and diseases.
  • Understanding their mechanisms and interactions with co-factors is crucial for therapeutic strategies.
  • Orphan nuclear receptors represent promising targets for drug discovery in manipulating transcriptional functions.

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