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The cGAS-STING Pathway in Pulmonary Diseases: Mechanisms and Therapeutic Potential
Zhuo Zhang1,2, Jiacheng Jiang1,2, Guodong Wu1,2
1Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China.
Abstract:
The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway, a central innate immune sensor of cytosolic DNA, plays a dual role in immunoregulation within pulmonary diseases. Recent studies demonstrate its critical role in sensing microbial infections and tissue injury in the lung, allowing it to drive the production of type I interferons (IFN-I) and pro-inflammatory cytokines. While this pathway is essential for anti-viral defense and anti-tumor immunity, its dysregulation can exacerbate pathologies such as chronic obstructive pulmonary disease (COPD), pulmonary fibrosis, and lung cancer, mainly through sustained inflammation and fibroblast proliferation. Nowadays, many cGAS-STING agonists and inhibitors are available to treat different diseases. This review comprehensively summarizes the basic mechanism of the cGAS-STING pathway, its diverse roles across various pulmonary diseases, and the current landscape of potential therapeutic strategies targeting this pathway. Notably, the critical role of the cGAS-STING signaling pathway in various lung diseases offers new avenues for therapeutic research.
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