endotoxin-University of Pennsylvania

Endotoxin-University of Pennsylvania refers to a specific research-grade preparation of bacterial lipopolysaccharide (LPS) derived from Escherichia coli, utilized in experimental clinical protocols at the University of Pennsylvania. This compound is employed as a standardized inflammatory stimulus in human models of systemic inflammation. When administered intravenously at low doses (typically 3 ng/kg), it serves as a potent agonist of the Toll-like Receptor 4 (TLR4) complex on innate immune cells. This activation triggers a transient, controlled release of pro-inflammatory cytokines, allowing researchers to study the mechanistic links between acute inflammation and metabolic disturbances such as insulin resistance, altered lipid metabolism, and endothelial dysfunction. It is primarily used as a diagnostic and research tool to model the low-grade inflammation associated with metabolic syndrome and cardiovascular disease rather than as a therapeutic intervention.

Other names

Endotoxin (LPS)LipopolysaccharideLPSEscherichia coli endotoxinBacterial endotoxin