Inflammatory sensory nerve ending

Inflammatory sensory nerve endings are peripheral terminals of sensory neurons (mainly nociceptors) that detect and respond to a wide array of inflammatory signals in tissues. These structures express a diverse set of molecular receptors, such as ion channels (e.g., TRPV1, Nav1.8), neuropeptide receptors (e.g., for substance P and CGRP), and other chemosensors for cytokines, growth factors, and microbial metabolites. Upon activation by inflammatory mediators (like prostaglandin E2, histamine, or NGF), these nerve endings transmit pain signals centrally but also initiate local axon reflexes that release pro-inflammatory neuropeptides (notably substance P and CGRP), thereby amplifying tissue inflammation via vasodilation, edema, mast cell degranulation, and immune cell recruitment. They thus serve as a crucial interface between the nervous and immune systems, contributing to neurogenic inflammation and the pathophysiology of chronic pain and inflammatory diseases. However, the term does not refer to a unique, discrete molecular target amenable to direct pharmacological manipulation, but rather to a complex and heterogenous population of functional nerve structures.\n\nNote: To obtain structured molecular target data, it is necessary to consider the specific molecular entities expressed on these nerve endings (e.g., "Transient receptor potential vanilloid 1", "Nav1.8", "Neurokinin 1 receptor", "Calcitonin gene-related peptide receptor"), not the collective/anatomical term "inflammatory sensory nerve ending" itself.

Other names

Nociceptive nerve endingsensory nerve terminalperipheral nociceptor endingneurogenic inflammatory terminalfree nerve ending (in context of inflammation)

Inhibit or desensitize ion channels on sensory nerve endings (e.g., TRPV1, Nav1.8)\nBlock neuropeptide release or signaling (e.g., CGRP or substance P antagonists)\nSuppress action potential initiation or propagation