Mechanism of Action of the Plateau-Adapted Gene PPARA in COPD.

Frontiers in bioscience (Landmark edition) 2024

Abstract

Chronic obstructive pulmonary disease (COPD) is a complex respiratory disorder influenced by various factors and involving multiple genes. Respiratory dysfunction in COPD patients leads to hypoxia, resulting in limited oxygen uptake. Peroxisome proliferator-activated receptor alpha (PPARA) is a plateau-adapted gene that regulates respiratory function in populations adapted to high-altitude areas through multiple pathways. Interestingly, PPARA expression is higher in long-term inhabiting Tibetan populations that have adapted to the plateau environment. However, in patients with COPD, the expression of PPARA is downregulated, leading to dysregulation of the hypoxia-inducible factor pathway. Moreover, abnormal PPARA expression in lung epithelial cells triggers inflammatory responses, oxidative stress, and disrupted lipid metabolism, thereby exacerbating disease progression. Thus, this paper explored the mechanism underlying the role of plateau-adapted PPARA in COPD, providing essential theoretical insights into the treatment and prevention of COPD in high-altitude regions.

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