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Target intelligence / Profile preview
Submucosal Gland Mucus Glycoprotein Secretion (SMG Mucin Secretion)
- Target
- SMG Mucin Secretion
- Molecular classification
- Biological Process, Secretion
01
Overview
Submucosal gland mucus glycoprotein secretion is the process by which glands beneath the airway epithelium produce and release mucus rich in glycoproteins, mainly MUC5B. This secretion is essential for maintaining airway hydration, trapping pathogens, supporting mucociliary clearance, and contributing to innate lung defense. Dysregulation of this process is implicated in diseases like cystic fibrosis and chronic bronchitis.
- Other names
- Airway Mucin SecretionSubmucosal Gland SecretionMucus Production
02
Mechanism of action
Secretion is stimulated by muscarinic agonists, substance P, vasoactive intestinal peptide (VIP) via neural control. Proteases such as neutrophil elastase can also induce rapid degranulation.
03
Biological functions
Airway HydrationPathogen EntrapmentMucociliary ClearanceInnate Lung Defense
04
Disease associations
Cystic FibrosisChronic BronchitisPrimary Ciliary DyskinesiaChronic Lung Disease
05
Safety considerations
Hypersecretion leading to airway obstructionThickened mucus impairing clearanceIncreased susceptibility to infection
06
Interacting drugs
Muscarinic agonists
3 more in the full profile.
07
Biomarkers
MUC5BMUC5AC
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