P2 receptors in cancer progression and metastatic spreading

Area of Science:

• Immunology
• Oncology
• Molecular Biology

Background:

• The tumor microenvironment (TME) is characterized by high concentrations of nucleosides and nucleotides.
• Adenosine plays a critical role in establishing an immunosuppressive TME.
• Extracellular ATP's influence on anti-tumor immunity and host-tumor interactions requires further elucidation.

Purpose of the Study:

• To review recent literature on the function of nucleotide-selective (P2) plasma membrane receptors in cancer.
• To explore the dual role of P2 receptors in modulating tumor growth and anti-tumor immune responses.

Main Methods:

• Literature review of studies investigating P2 receptor expression and function in the TME.
• Analysis of the impact of different P2 receptor subtypes on host-tumor interactions.

Main Results:

• P2 receptors are expressed on both host immune cells and cancer cells within the TME.
• The specific P2 receptor subtype, inflammatory infiltrate, and tumor cell type dictate whether P2 receptor signaling promotes anti-tumor immunity or tumor progression.
• Evidence suggests P2 receptor activity significantly influences the host-tumor crosstalk.

Conclusions:

• Understanding the pharmacology, biochemistry, and functional roles of P2 receptors is crucial for deciphering host-tumor interactions.
• Targeting P2 receptors presents a promising avenue for developing novel anti-cancer therapies.