In or out of control: Modulating regulatory T cell homeostasis and function with immune checkpoint pathways.

Area of Science:

• Immunology
• Cellular Biology
• Cancer Research

Background:

• Regulatory T cells (Tregs) are critical for maintaining immune homeostasis.
• Tregs play significant roles in infection, autoimmunity, and cancer.
• Understanding Treg development, differentiation, and function is essential for immune regulation.

Approach:

• Systematic review of checkpoint pathways' role in Treg homeostasis and function.
• Analysis of co-stimulatory and co-inhibitory pathway modulation of Tregs.
• Inclusion of data from both mouse and human studies.

Key Points:

• Checkpoint pathways extensively influence Treg generation and suppressive function.
• Co-stimulatory and co-inhibitory signals dynamically regulate Treg homeostasis.
• Both experimental and approved therapeutics targeting checkpoint pathways affect Treg biology.

Conclusions:

• Checkpoint pathways are vital targets for modulating Treg function in disease.
• Therapeutic targeting of checkpoint pathways holds promise for treating cancer and autoimmune diseases.
• Further research into checkpoint pathways will refine Treg-based immunotherapies.