A Peptide Antagonist of the TLR4–MD2 Interaction

Abstract
Toll‐like receptors are an integral part of innate immunity in the central nervous system (CNS); they orchestrate a robust defense in response to both exogenous and endogenous danger signals. Recently, toll‐like receptor 4 (TLR4) has emerged as a therapeutic target for the treatment of CNS‐related diseases such as sepsis and chronic pain. We herein report a chemical biology approach by using a rationally designed peptide inhibitor to disrupt the TLR4–MD2 association, thereby blocking TLR4 signaling.