In contrast, when murine cell lines CMT64/61 (C57BL/6 lung adenocarcinoma) and NIH/3T3 (murine fibroblast, deficient in some steps of IFN signaling [45]) were infected with HMPV, we saw increased total and phosphorylated STAT1 and STAT2 (Figure 4). Here, STAT2 is linked to lung adenocarcinoma.