Dual regulation of the cGAS-STING pathway: new targets and challenges for subtype-specific immunotherapy in breast cancer

Abstract

Research on immune regulation mechanisms in breast cancer is crucial for breaking through therapeutic bottlenecks. This paper comprehensively reviews the dual roles of the cGAS-STING pathway in Luminal, HER2+, and triple-negative breast cancer (TNBC): its activation can enhance antitumor immunity, but chronic activation may lead to immunosuppression. By integrating molecular mechanisms, clinical translation, and subtype-specific strategies, it provides new directions for precision immunotherapy.