The transcription factor nuclear factorjB(NF-jB) is an activator of multiple cytokines, chemokines and adhesion molecules, which are important in inflammatory diseases such as asthma, and is consequently considered as an attractive therapeutic target. In the present study, a con-stitutively active dominant version of IjBa,IjBaDN, was introduced into A549 pulmonary cells by adenovirus-mediated delivery. The dominant IjB, but not a null viral vector, prevented the induction of NF-jB-dependent transcription by both tumor necrosis factora(TNFa)and interleukin-1b(IL-1b). .
