RT Journal Article T1 Role of Nitric Oxide in Gene Expression Regulation during Cancer: Epigenetic Modifications and Non-Coding RNAs A1 de la Cruz-Ojeda, Patricia A1 Flores-Campos, Rocío A1 Dios-Barbeito, Sandra A1 Navarro-Villarán, Elena A1 Muntané, Jordi K1 Hepatocarcinoma K1 miRNA K1 Nitric oxide synthase K1 lncRNA K1 Tumor-associated macrophages K1 Cancer associated fibroblasts K1 Cancer stem cells K1 MicroARNs K1 Óxido nítrico sintasa K1 ARN largo no codificante K1 Macrófagos asociados a tumores K1 Fibroblastos asociados al cáncer K1 Células madre neoplásicas AB Nitric oxide (NO) has been identified and described as a dual mediator in cancer according to dose-, time- and compartment-dependent NO generation. The present review addresses the different epigenetic mechanisms, such as histone modifications and non-coding RNAs (ncRNAs), miRNA and lncRNA, which regulate directly or indirectly nitric oxide synthase (NOS) expression and NO production, impacting all hallmarks of the oncogenic process. Among lncRNA, HEIH and UCA1 develop their oncogenic functions by inhibiting their target miRNAs and consequently reversing the inhibition of NOS and promoting tumor proliferation. The connection between miRNAs and NO is also involved in two important features in cancer, such as the tumor microenvironment that includes key cellular components such as tumor-associated macrophages (TAMs), cancer associated fibroblasts (CAFs) and cancer stem cells (CSCs). PB MDPI YR 2021 FD 2021-06-10 LK http://hdl.handle.net/10668/3656 UL http://hdl.handle.net/10668/3656 LA en NO de la Cruz-Ojeda P, Flores-Campos R, Dios-Barbeito S, Navarro-Villarán E, Muntané J. Role of Nitric Oxide in Gene Expression Regulation during Cancer: Epigenetic Modifications and Non-Coding RNAs. Int J Mol Sci. 2021 Jun 10;22(12):6264 DS RISalud RD Apr 8, 2025