Inducible nitric oxide synthase messenger RNA (iNOS mRNA) (iNOS mRNA)

Inducible nitric oxide synthase (iNOS) messenger RNA is the transcript of the NOS2 gene, which encodes the enzyme responsible for high-output nitric oxide (NO) production in response to inflammatory stimuli (Source: UniProt, P35228). Unlike constitutive isoforms, iNOS is primarily regulated at the transcriptional and post-transcriptional levels, making its mRNA a critical control point for NO-mediated signaling (Source: PubMed, PMID: 11485209). Pathological upregulation of iNOS mRNA is observed in conditions such as septic shock, rheumatoid arthritis, and various cancers, where excessive NO leads to oxidative stress and tissue damage (Source: NIH, StatPearls). Therapeutic strategies targeting iNOS mRNA, including small interfering RNAs (siRNAs) and antisense oligonucleotides (ASOs), aim to selectively downregulate iNOS protein expression without affecting the physiological functions of other NOS isoforms (Source: PubMed, PMID: 10837126). These RNA-targeted approaches are being investigated to treat chronic inflammatory diseases and prevent tumor progression by reducing the pro-inflammatory and pro-angiogenic effects of iNOS-derived NO. By focusing on the mRNA transcript, these therapies offer a high degree of specificity compared to traditional small-molecule enzyme inhibitors.

Other names

NOS2 mRNAInducible NO synthase mRNAHepatocyte NOS mRNAiNOS transcriptNitric oxide synthase 2 mRNA

Targeting iNOS mRNA involves the use of complementary nucleic acid sequences, such as siRNAs or antisense oligonucleotides, to induce the degradation of the transcript via the RNA-induced silencing complex (RISC) or to physically block the translation machinery, thereby preventing the synthesis of the iNOS enzyme.