Target intelligence / Profile preview

Pulmonary Alveolar Air-Liquid Interface (ALI)

Target: ALI
Molecular classification: Extracellular matrix, Cellular Barrier, Lipid-Protein Complex

Overview

The pulmonary alveolar air-liquid interface is a critical region within the alveoli where inhaled air meets a thin liquid lining. This interface, composed of surfactant, water, and alveolar epithelial cells, is essential for gas exchange, reducing surface tension to prevent alveolar collapse, and maintaining a barrier against pathogens. It's not a single target but a complex physiological environment.

Other names: Alveolar Air-Liquid InterfacePulmonary Air-Liquid InterfaceAir-Liquid Interface (ALI) in LungAlveolar-Capillary Barrier

Mechanism of action

Surfactant reduces surface tension; ventilation aids gas exchange; corticosteroids reduce inflammation.

Biological functions

Gas ExchangeSurface Tension RegulationBarrier FunctionImmune DefenseLung inflation

Disease associations

Acute Respiratory Distress Syndrome (ARDS)Respiratory InfectionsAtelectasisPulmonary EdemaBronchopulmonary Dysplasia (BPD)

Safety considerations

Barotrauma from mechanical ventilationOxygen toxicityInfectionSurfactant inactivation by proteinaceous edema fluid

Interacting drugs

Surfactant Replacement Therapy (e.g., Beractant, Poractant alfa)

2 more in the full profile.

Biomarkers

Surfactant protein levels (e.g., SP-A, SP-D)Oxygenation status (PaO2/FiO2 ratio)Inflammatory markers (e.g., cytokines in BAL fluid)Lung compliance

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