Involvement of cigarette smoke-induced epithelial cell ferroptosis in COPD pathogenesis
Jikei University School of Medicine · Kitasato University
Abstract
Ferroptosis is a necrotic form of regulated cell death (RCD) mediated by phospholipid peroxidation in association with free iron-mediated Fenton reactions. Disrupted iron homeostasis resulting in excessive oxidative stress has been implicated in the pathogenesis of chronic obstructive pulmonary disease (COPD). Here, we demonstrate the involvement of ferroptosis in COPD pathogenesis. Our in vivo and in vitro models show labile iron accumulation and enhanced lipid peroxidation with concomitant non-apoptotic cell death during cigarette smoke (CS) exposure, which are negatively regulated by GPx4 activity. Treatment with deferoxamine and ferrostatin-1, in addition to GPx4 knockdown, illuminate the role of…
Citation impact
- FWCI
- 35.75
- Percentile
- 100%
- References
- 48
Authors
27Topics & keywords
- GPX4
- Pathogenesis
- Oxidative stress
- Programmed cell death
- Lipid peroxidation
- Autophagy
- Ferritin
- Apoptosis
- Good health and well-being