E2F1 and asthma: By searching PubMed, NFKB1 [22, 23], STAT6 [24], E2F1 [25], USF1 [26], and CBFB [21] were the verified asthma-related TFs, while NFKB1 [22, 23] and STAT6 [24] were the newly discovered asthma-related genes in 2013.