KL-6 is specific for determining the function of type II alveolar epithelial cells. Damage to the basement membranes of the lungs can lead to increased vascular permeability, allowing KL-6 to enter the bloodstream. Serum KL-6 can reflect alveolar injury, type II alveolar cell regeneration and the activity of various interstitial lung diseases.The level of KL-6 can sensitively reflect the degree of alveolar epithelial and mesenchymal injury.

Concentration ≥2mg/ml