Alveolar Type 1 (AT1) Cells: Cells that form the majority of the surface area of the alveoli and are involved in gas exchange. Alveolar Type 2 (AT2) Cells: Cells that produce surfactant and can ...

"It's been recently discovered that the AT2 receptor is found in the lung's alveoli, the lung's air sacs, and it seems to be central to the proper functioning of the alveoli," explains Hallberg.

This cancer originates in the epithelial cells that line the lung’s alveoli, the tiny sacs responsible for gas exchange between the bloodstream and inhaled air. Most lung adenocarcinoma studies ...