Colonic mucosa and enteric nervous system

The colonic mucosa and enteric nervous system (ENS) represent a complex integrated physiological unit rather than a single molecular target. The colonic mucosa is the innermost tissue layer of the large intestine, consisting of the epithelium, lamina propria, and muscularis mucosae, which together manage nutrient absorption, water transport, and immune barrier functions [PMID: 24907339]. The ENS is an extensive, autonomous network of neurons and glia embedded in the gut wall—often called the 'second brain'—that coordinates peristalsis and local blood flow [PMID: 16496521]. Dysregulation of the bidirectional communication between the mucosa and the ENS is a hallmark of functional gastrointestinal disorders like irritable bowel syndrome (IBS) and organic diseases such as inflammatory bowel disease (IBD) [PMID: 27144618]. While pharmacological agents like prucalopride or linaclotide target specific receptors or channels within these tissues, the term 'Colonic mucosa and enteric nervous system' describes anatomical and functional systems rather than a discrete, druggable protein target.

Other names

Intestinal mucosaEnteric nervous systemENSGut-brain axis componentsIntrinsic nervous system of the gastrointestinal tract

Drugs interacting with these systems typically modulate neurotransmitter receptors (e.g., 5-HT3, 5-HT4), activate epithelial ion channels (e.g., CFTR, ClC-2), or inhibit inflammatory mediators to regulate motility, secretion, and mucosal healing.