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P2 Receptors: Novel Disease Markers and Metabolic Checkpoints in Immune Cells

Valentina Vultaggio-Poma1, Francesco Di Virgilio1

  • 1Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy.

Biomolecules
|July 27, 2022
PubMed

Insights

Extracellular ATP (eATP) and P2 receptors regulate T-lymphocyte responses and energy metabolism. P2X7 receptor expression indicates T-cell activation status and potential immune-mediated diseases.

Area of Science:

  • Immunology
  • Cell Biology
  • Biochemistry

Background:

  • Extracellular ATP (eATP) and P2 receptors are increasingly recognized as key regulators of T-lymphocyte functions.
  • Cellular ATP release occurs during tissue damage and inflammation, influencing the immune microenvironment.
  • Single nucleotide polymorphisms (SNPs) in P2 receptors are linked to various disease states, highlighting their clinical relevance.

Purpose of the Study:

  • To investigate the role of extracellular ATP and P2 receptors in modulating T-lymphocyte energy metabolism.
  • To explore the relationship between P2 receptor expression and T-cell activation, differentiation, and metabolic status.
  • To assess the potential of P2 receptors as biomarkers for immune-mediated diseases.

Main Methods:

  • Analysis of P2 receptor expression during T-cell activation and differentiation.
  • Assessment of purinergic signaling effects on T-cell energy metabolism (oxidative and glycolytic pathways).
  • Correlation of P2 receptor expression patterns with T-cell functional states.

Main Results:

  • Extracellular ATP and P2 receptor stimulation significantly modulate T-lymphocyte energy metabolism.
  • Specific P2 receptor subtypes, such as P2X7 receptor (P2X7R), show altered expression during T-cell activation and differentiation.
  • P2 receptor expression levels correlate with T-cell activation, metabolic status, and quiescent states.

Conclusions:

  • P2 receptors are critical regulators of T-lymphocyte metabolism and function.
  • P2 receptor expression serves as an indicator of T-cell activation and metabolic state.
  • P2 receptors hold potential as diagnostic markers for immune-mediated diseases.
Keywords:
P2 receptorsT cellsT-cell metabolismextracellular ATPinflammatory diseasetumour microenvironment

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