TNF and asthma: The large number of differentially expressed genes observed in CEBPD siRNA versus NT siRNA transfected samples under glucocorticoid and/or TNFα exposures included expected findings, such as changes in genes related to the ontological categories interferon signaling and downstream signaling events of B cell receptor, as well as novel findings of relevance to asthma, such as the alteration of genes involved in smooth muscle contraction and nitric oxide stimulates guanylate cyclase.