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Target intelligence / Profile preview
Gastric Mucus Barrier (GMB)
- Target
- GMB
- Molecular classification
- Complex Biological System, Extracellular Matrix, Mucin Layer
01
Overview
The gastric mucus barrier is an essential multi-layered defense system comprised mainly of secreted gel-forming mucins trapping neutralizing agents above tightly joined epithelia—together ensuring safe containment/functionality amid harsh digestive conditions while preventing self-injury. It consists of a mucus layer (primarily composed of mucins), bicarbonate secretion, and a tightly joined epithelial cell lining. Its main functions include physical and chemical protection, pH regulation, and anti-bacterial action. Disruption can lead to conditions like peptic ulcer disease and gastritis, often exacerbated by factors like H. pylori infection, NSAIDs, and alcohol.
- Other names
- Gastric Mucosal BarrierMucus LayerGastric Protective Barrier
02
Mechanism of action
N/A - This is a barrier system, not a single target with a specific mechanism of action.
03
Biological functions
Protection against mechanical damagePrevention of autodigestionpH homeostasisBarrier against acid and pepsinAnti-bacterial actionLubrication
04
Disease associations
Peptic ulcer diseaseGastritisHelicobacter pylori infection
05
Safety considerations
Compromise leads to ulceration and gastritisSusceptibility to H. pylori infectionIncreased risk of bleeding with NSAIDs/alcohol
06
Interacting drugs
NSAIDs (e.g., Aspirin)
2 more in the full profile.
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