TABLE 1.

Transepithelial resistance of AEC monolayers before and after exposure to apical or basolateral lentivirus vectors (MOI = 10)

Timea	Mean Rt (kΩ · cm2) ± SEMb
	Control	Apical vector	Basolateral vector
30 min (pre)	3.71 ± 0.22	3.78 ± 0.24	3.81 ± 0.19
30 min (post)	2.75 ± 0.92	2.07 ± 0.46	1.64 ± 0.55
72 h (post)	2.66 ± 0.24	2.66 ± 0.34	2.47 ± 0.33

^apre and post refer to before and after exposure, respectively. 

^bControl = uninfected monolayers.