Journal
CELLS
Volume 11, Issue 20, Pages -Publisher
MDPI
DOI: 10.3390/cells11203317
Keywords
endothelial cells; transcription factors; signal transduction; lung inflammatory injury
Categories
Funding
- NIGMS [GM130463]
- NHLBI grants [HL148695, HL130870]
- NIH Center Grant [P30 ES001247]
- T32 training grant [ES007026]
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ALI/ARDS is a devastating disease with dysregulated inflammation as a major hallmark, in which NF-kappa B in endothelial cells plays a crucial role. Targeting NF-kappa B may be an effective approach for treating ALI/ARDS.
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a devastating disease that can be caused by a variety of conditions including pneumonia, sepsis, trauma, and most recently, COVID-19. Although our understanding of the mechanisms of ALI/ARDS pathogenesis and resolution has considerably increased in recent years, the mortality rate remains unacceptably high (similar to 40%), primarily due to the lack of effective therapies for ALI/ARDS. Dysregulated inflammation, as characterized by massive infiltration of polymorphonuclear leukocytes (PMNs) into the airspace and the associated damage of the capillary-alveolar barrier leading to pulmonary edema and hypoxemia, is a major hallmark of ALI/ARDS. Endothelial cells (ECs), the inner lining of blood vessels, are important cellular orchestrators of PMN infiltration in the lung. Nuclear factor-kappa B (NF-kappa B) plays an essential role in rendering the endothelium permissive for PMN adhesion and transmigration to reach the inflammatory site. Thus, targeting NF-kappa B in the endothelium provides an attractive approach to mitigate PMN-mediated vascular injury, not only in ALI/ARDS, but in other inflammatory diseases as well in which EC dysfunction is a major pathogenic mechanism. This review discusses the role and regulation of NF-kappa B in the context of EC inflammation and evaluates the potential and problems of targeting it as a therapy for ALI/ARDS.
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