Abstract
Growth hormone (GH) is a crucial regulator of growth, cell reproduction, and regeneration; and it is controlled by growth hormone-releasing hormone (GHRH) and somatostatin. Lipopolysaccharides (LPS) can compromise endothelial function, leading to increased inflammation and vascular leak. Octreotide (OCT) is an FDA-approved synthetic somatostatin analog (SSA) used to treat acromegaly and neuroendocrine tumors. The present study investigates the effects of OCT on LPS-induced injury in bovine and human lung endothelial cells, as well as in mouse lungs. Our in vitro observations suggest that OCT effectively counteracts LPS-induced endothelial leak, inflammation, and reactive oxygen species (ROS) generation. Furthermore, OCT reduced bronchoalveolar lavage fluid (BALF) protein concentration in an experimental model of Acute Lung Injury (ALI). Our study suggests that OCT mitigates LPS-induced endothelial cell and lung injury, suggesting that it may represent an exciting therapeutic possibility in diseases related to barrier dysfunction.
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