Cited by 51interferon and immune responsesTracheal and airway disordersSystemic Sclerosis and Related Diseases

Macrophage STING signaling promotes fibrosis in benign airway stenosis via an IL6-STAT3 pathway

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Chen, YiLin, Yang, ChengCheng, Miao, YuShan, Shi, DongChen, Li, Xiang, Tian, Sen, Zhang, YiFei, Xu, ChengFei +4 more·2025·Nature Communications

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Abstract

Abstract Benign airway stenosis (BAS) caused by tracheal intubation resuscitation measures is a difficult complication to ignore in the management of critically ill patients. However, the pathogenesis of this disease, which is characterized histologically by tracheal fibrosis, remains poorly understood. It has been shown that post-injury inflammatory processes play a key role in tissue fibrosis. However, we remain unclear about the relationship between inflammation induced by mechanical injury and BAS after tracheal intubation. Here, we found STING expression was increased in trachea after injury and inhibition or deletion of STING can alleviate tracheal fibrosis in BAS mice. Then, we reveal that released tracheal epithelial cell DNA resulting from mechanical injury activates macrophage STING. Further, macrophages with activated cGAS-STING pathway promote fibroblast fibrosis in the trachea via the IL6-STAT3 axis. We determined that the cGAS-STING pathway in macrophages is critical in causing tracheal fibrosis and ultimately benign airway stenosis. Our results provide a key cornerstone for future treatment of benign airway stenosis caused by mechanical injury.

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Authors
Chen, Y., Yang, C., Miao, Y., Shi, D., Li, X., Tian, S., Zhang, Y., Xu, C., Dong, Y., Han, C., Shi, H., & Bai, C.
Affiliations
  • Chinese People's Liberation Army (CN)
  • Second Military Medical University (CN)
Corresponding author
  • Han, ChaoFeng
  • Shi, Hui
  • Bai, Chong
Venue
Nature Communications
Published
2025-01-03
Volume
16
Issue
1
Pages
289-289
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4406027313
Cited by
51
References
48
Citations by year
2026: 31 · 2025: 20
FWCI
18.88
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by-nc-nd)
  • Research Square (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China (82270112)
  • National Science Foundation of China | Young Scientists Fund (82000102)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Tracheal and airway disorders
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Systemic Sclerosis and Related Diseases
Keywords
benign airway stenosis, tracheal fibrosis, cGAS-STING pathway, macrophages, interleukin-6, STAT3, double-stranded DNA, acute and chronic inflammation, STING inhibition, macrophage depletion, epithelial damage, critically ill patients
MeSH terms
STING Protein, Cyclic Guanosine Monophosphate-Adenosine Monophosphate Synthase, Animals, Disease Models, Animal, DNA, Epithelial Cells, Female, Fibrosis, Humans, Inflammation, Macrophages, Male, Membrane Proteins, Mice, Inbred C57BL, Nucleotidyltransferases, Trachea, Signal Transduction, Interleukin-6, Mice, Knockout, STAT3 Transcription Factor, Mice

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