Table 1.

Connexin Expression in the Lung

Cell Type	Connexin expression	References
Airway epithelium	Cx26, Cx30, Cx31, Cx32, Cx37, Cx43	23, 75, 97, 147, 165, 186
Trachea	Cx26, Cx43, Cx46	25, 31, 78
Alveolar epithelium		2, 3, 12, 66, 80, 81, 92, 111, 165
Type II	Cx26, Cx32, Cx37, Cx43, Cx46
Type I	Cx26, Cx37, Cx40, Cx43, Cx46
Pulmonary endothelium	Cx37, Cx40, Cx43	34, 134, 145, 165, 190
Smooth muscle	Cx37, Cx40, Cx43	22, 92, 130
Lung Fibroblasts	Cx43, Cx45	15, 92, 166, 194