Cationic Protein Neutralization

Cationic protein neutralization refers to the process by which cationic (positively charged) proteins or peptides bind to and neutralize negatively charged molecules, most notably bacterial endotoxins such as lipopolysaccharide (LPS). This interaction is a key mechanism in innate immunity, helping to mitigate excessive inflammatory responses during infections, particularly those caused by Gram-negative bacteria. Key molecules involved include Eosinophil Cationic Protein (ECP) and synthetic anti-LPS peptides (SALPs). The mechanism involves electrostatic attraction, structural rearrangement of LPS aggregates, and inhibition of LPS binding to host recognition proteins. It holds therapeutic potential for sepsis and other conditions involving harmful inflammation.

Other names

Endotoxin NeutralizationLPS Neutralization

Electrostatic binding of cationic proteins/peptides to negatively charged molecules (e.g., LPS), leading to structural rearrangement and inhibition of host-endotoxin interactions.