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Endocrine Examples of Phase Separation in Biology.

Talia Fargason1, Xu Liu1

  • 1Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA.

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PubMed
Summary
This summary is machine-generated.

Biomolecular condensates form via liquid-liquid phase separation (LLPS) and liquid-gel phase separation (LGPS), impacting cellular functions. Steroid hormone receptors (SHRs) utilize this mechanism for gene regulation, influencing endocrine homeostasis and disease.

Keywords:
liquid–liquid phase separationnuclear receptorsteroid hormone receptortranscriptional condensate

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Area of Science:

  • Cellular Biology
  • Molecular Endocrinology
  • Biophysics

Background:

  • Cellular compartments form via biomolecular interactions, not just membranes.
  • Liquid-liquid phase separation (LLPS) and liquid-gel phase separation (LGPS) drive this compartmentalization.
  • Steroid hormone receptors (SHRs) are key nuclear receptors regulating gene transcription and endocrine homeostasis.

Purpose of the Study:

  • To review recent literature on phase separation of SHRs in transcriptional regulation.
  • To explore the role of SHR condensates in gene activation and endocrine function.
  • To discuss the implications of SHR phase separation in hormone therapy resistance and potential therapeutic strategies.

Main Methods:

  • Literature review of studies on biomolecular phase separation.
  • Analysis of SHR clustering at gene loci.
  • Discussion of drug development targeting SHR condensates.

Main Results:

  • SHR clusters at promoters/enhancers function as transcriptional condensates.
  • Phase separation of SHRs and coregulators mediates chromatin remodeling and transcription.
  • SHR-driven LLPS may contribute to hormone therapy resistance; LGPS transition reduces hormone responsiveness.

Conclusions:

  • Phase separation is crucial for SHR-mediated gene regulation and endocrine homeostasis.
  • Dysregulated SHR phase separation contributes to disease states, including hormone therapy resistance.
  • Targeting SHR condensates offers novel therapeutic avenues for hormone-dependent cancers.