Targeting the tumor immune microenvironment: GPCRs as key regulators in triple-negative breast cancer

Area of Science:

• Oncology
• Immunology
• Pharmacology

Background:

• Triple-negative breast cancer (TNBC) is aggressive with limited treatment options.
• G protein-coupled receptors (GPCRs) play a crucial role in the tumor immune microenvironment (TIME) of TNBC.
• GPCRs influence immune cell activity, promoting an immunosuppressive environment that aids tumor growth and metastasis.

Purpose of the Study:

• To review the role of four key GPCRs (chemokine, sphingosine-1-phosphate, prostaglandin E2, and lactate receptors) in TNBC.
• To examine how GPCR expression on immune cells affects TNBC pathogenesis.
• To discuss novel therapeutic strategies targeting GPCRs for TNBC immunotherapy.

Main Methods:

• Literature review of studies on GPCRs in TNBC.
• Analysis of GPCR expression and function in the TNBC TIME.
• Exploration of therapeutic interventions targeting GPCR signaling pathways.

Main Results:

• GPCRs modulate immune cell recruitment, polarization, and function within the TNBC microenvironment.
• Altered GPCR expression contributes to TNBC progression and metastasis.
• Targeting GPCRs can potentially remodel the immunosuppressive TIME.

Conclusions:

• GPCRs are critical regulators of immune responses in TNBC.
• Understanding GPCR-mediated immune regulation provides insights into TNBC pathophysiology.
• Targeting GPCRs represents a promising strategy for developing novel TNBC immunotherapies.