Primary Human Small Airway Epithelial Cells (HSAEpC) are isolated from the distal portion of the human respiratory tract in the 1 mm bronchiole area. They stain positive for cytokeratin.

The distal respiratory tract mainly consists of pulmonary alveoli, which are spherical outcroppings of the respiratory bronchioles and are the primary sites of gas exchange with the blood. HSAEpC are qualified for functional studies to investigate disorders such as asthma or pulmonary inflammation.

Applications include: Drug uptake studies, toxicological research, wound healing research, oncology, cell differentiation studies, respiratory disease research.