Disulfiram activation of prostaglandin E2 synthesis: a novel antifibrotic mechanism in pulmonary fibrosis
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterized by the pathological replacement of alveolar structures with thickened, inelastic fibrous tissue, which significantly hinders gas exchange in the lungs. Disulfiram (DSF), a Food and Drug Administration-approved drug for alcohol dependence, has shown potential in various diseases. This study investigates the effects of DSF on IPF and its mechanisms, focusing on the cyclooxygenase-2 (COX-2)/prostaglandin E2 (PGE2) pathway. Utilizing primary diseased human lung fibroblast-IPF cells and A549 cells induced with transforming growth factor-beta 1 to model epithelial-mesenchymal transition (EMT), we employed a battery of in vitro assays to assess cellular viability, migratory capacity, and the expression of fibrosis-related genes and proteins. To further substantiate our in vitro findings, a bleomycin-induced mouse model of IPF was treated with DSF, and subjected to a comprehensive evaluation of pulmonary function, histological examination, hydroxyproline assay, and western blot analysis to quantify the extent of fibrosis. DSF reduced cell viability and migration in fibrotic cell models. It increased COX-2 and PGE2 levels, regulated EMT, and extracellular matrix collagen deposition. In vivo, DSF improved pulmonary function and reduced EMT and extracellular matrix accumulation in mice. The COX-2/PGE2 axis was identified as a critical mediator of DSF's effects. DSF exhibits antifibrotic properties in IPF by modulating the COX-2/PGE2 signaling pathway. This study provides a novel therapeutic strategy for IPF and highlights the potential of repurposing DSF for clinical use in this context. SIGNIFICANCE STATEMENT: Disulfiram shows promise in treating idiopathic pulmonary fibrosis by targeting the cyclooxygenase-2/prostaglandin E2 pathway, offering a new therapeutic strategy and highlighting its potential for repurposing in this context.
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DIS shows promise for treating idiopathic pulmonary fibrosis by targeting the COX-2/prostaglandin E2 pathway.
“In addition, it shows promise for treating this by targeting the COX-2/prostaglandin E2 pathway.123”
From Off-label and repurposed use of disulfiram beyond alcohol dependence: A systematic review of clinical and preclinical evidence (2026) · cites this paper as [123]
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Benkő, B.-M., De Brito Parreirinha, N. S., Sebe, I., & Zelkó, R. (2026) · iScience · doi:10.1016/j.isci.2026.115441 · Cited by 2 · see citing works
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- Authors
- Pei, X., Zheng, F., Li, Y., Li, X., Lin, Z., Han, X., Tian, Z., Cao, K., Ren, D., & Li, C.
- Affiliations
- Nankai University (CN)
- Beijing Institute of Technology (CN)
- Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
- Jinzhou Medical University (CN)
- Affiliated Hospital of Qingdao University (CN)
- Corresponding author
- Ren, Dunqiang
- Li, Chenggang
- Venue
- The Journal of Pharmacology and Experimental Therapeutics
- Publisher
- Elsevier BV
- Published
- 2025-06
- Volume
- 392
- Issue
- 6
- Pages
- 103588
- ISSN
- 0022-3565 (ISSN-L)
- OpenAlex
- W4409638485
- Cited by
- 3
- References
- 52
- Citations by year
- 2026: 3
- FWCI
- 1.80
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Pharmacology and Experimental Therapeutics (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Nankai University
- Innovative Research Group Project of the National Natural Science Foundation of China
- National Natural Science Foundation of China (81300046, 81902019)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Pulmonary Hypertension Research and Treatments
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Keywords
- disulfiram, idiopathic pulmonary fibrosis, cyclooxygenase-2, prostaglandin E2, antifibrotic mechanism, epithelial-mesenchymal transition, bleomycin-induced fibrosis, drug repurposing, lung fibroblasts, collagen deposition, extracellular matrix, TGF-β1
- MeSH terms
- A549 Cells, Antifibrotic Agents, Animals, Cell Movement, Cell Survival, Disulfiram, Fibroblasts, Humans, Lung, Male, Mice, Inbred C57BL, Pulmonary Fibrosis, Dinoprostone, Mice, Cyclooxygenase 2, Idiopathic Pulmonary Fibrosis, Epithelial-Mesenchymal Transition
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