NOS2 and acute myeloid leukemia: We therefore concluded that carmustine may play a role in AML patients with high HOXA-AS2 expression levels by regulating these four DEGs: glial cell derived neurotrophic factor (GDNF), catalase (CAT), nitric oxide synthase 2 (NOS2), and dickkopf WNT signaling pathway inhibitor 1 (DKK1).