Potential interactions between STING pathway and the complement system in immune regulation.

Area of Science:

• Immunology
• Molecular Biology
• Oncology

Background:

• The complement system and cGAS-STING pathway are critical innate immune components.
• Both pathways are involved in pathogen defense and immune response modulation.
• Their roles in cancer are complex, influencing tumor dynamics and immune cell activity.

Purpose of the Study:

• To review the functions of the complement system and cGAS-STING pathway.
• To explore the intricate interplay between these pathways.
• To discuss their implications for disease pathogenesis, particularly in oncology.

Main Methods:

• Literature review of studies published between 1983 and 2024.
• Analysis of the roles of complement and cGAS-STING in pathogen clearance and tumor development.
• Examination of the crosstalk and regulatory mechanisms between the two pathways.

Main Results:

• Complement influences myeloid cells and T cell activities in cancer.
• Intracellular complement (complosome) impacts cellular metabolism and autophagy.
• STING activation affects tumor progression via NF-κB signaling, with context-dependent effects.
• Potential regulatory crosstalk exists between complement and cGAS-STING pathways.

Conclusions:

• Understanding the interplay between complement and cGAS-STING is crucial for elucidating disease pathogenesis.
• Insights can guide the development of novel therapeutic strategies for immune modulation in cancer and autoimmune diseases.
• Further investigation is warranted to fully unravel the complex roles of these pathways in health and disease.