Colonic mucosal nerve plexus

The colonic mucosal nerve plexus is a specialized network of neurons and enteric glial cells situated within the submucosal and mucosal layers of the colon, serving as a primary regulatory hub for local intestinal homeostasis (Source: PMID: 24907498). As a key component of the enteric nervous system (ENS), it coordinates essential functions such as epithelial electrolyte secretion, mucus production, and the regulation of local blood flow through the release of various neurotransmitters like acetylcholine and vasoactive intestinal peptide (Source: StatPearls, Physiology, Gastrointestinal). In pathological states like irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD), the plexus exhibits neuroplasticity and altered signaling, which are linked to visceral hypersensitivity and dysregulated motility (Source: PMID: 30214848). While the plexus itself is an anatomical structure rather than a single molecular target, it contains a high density of therapeutic targets, including serotonin 5-HT receptors and guanylate cyclase-C, which are exploited by drugs to treat chronic constipation and abdominal pain. Consequently, the colonic mucosal nerve plexus is a critical site of action for modern gastroenterological pharmacotherapy, though targeting its components requires precision to avoid systemic adverse effects.

Other names

Submucosal plexusMeissner's plexusMucosal plexusEnteric nervous system of the colonIntramural nerve plexus

Pharmacological agents modulate the colonic mucosal nerve plexus by targeting specific receptors (e.g., 5-HT4, GC-C, or opioid receptors) located on enteric neurons to alter neurotransmitter release, thereby influencing fluid secretion and gut motility (Source: StatPearls, Enteric Nervous System).