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Sensing phosphate across the kingdoms.

Justin Silver1, Michal Dranitzki-Elhalel

  • 1Minerva Center for Calcium and Bone Metabolism, Nephrology and Hypertention Services, Hadassah Hospital, The Hebrew University Medical School, Jerusalem, Israel. silver@huji.ac.il

Current Opinion in Nephrology and Hypertension
|June 20, 2003
PubMed
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Cells sense phosphate levels to maintain homeostasis, influencing responses like gene expression and replication. Understanding nutrient sensing is key to defining how cells detect phosphate concentration changes.

Area of Science:

  • Cell biology
  • Biochemistry
  • Physiology

Background:

  • Phosphate is an essential nutrient crucial for cellular functions.
  • Cellular responses to phosphate fluctuations are vital for organismal homeostasis.
  • Nutrient sensing mechanisms are conserved across biological kingdoms.

Purpose of the Study:

  • To review recent findings on cellular phosphate sensing.
  • To understand how cells detect changes in serum phosphate concentration.
  • To explore the link between nutrient sensing and phosphate homeostasis.

Main Methods:

  • Literature review of recent research on phosphate sensing.
  • Analysis of studies on cellular responses to phosphate availability.
  • Comparative analysis of nutrient sensing mechanisms in different organisms.

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Main Results:

  • Phosphate sensing regulates homeostatic responses, including gene transcription, transporter activity, and cell replication.
  • Responses to phosphate levels are conserved from unicellular organisms to mammals.
  • General principles of nutrient sensing may illuminate specific phosphate sensing mechanisms.

Conclusions:

  • Significant progress has been made in understanding phosphate sensing and cellular responses.
  • The precise molecular mechanisms of phosphate sensing remain to be fully elucidated.
  • Studying known nutrient sensing events offers valuable insights into phosphate sensing.