MicroRNA 199a-1 (MIR199A1)

MicroRNA 199a-1 (MIR199A1) is a human non-coding RNA gene located on chromosome 19, producing the mature microRNA miR-199a-3p and miR-199a-5p via post-transcriptional processing[2]. This microRNA serves as a key regulator of gene expression by binding to complementary sequences in 3' untranslated regions (UTRs) of target mRNAs, resulting in translation inhibition or mRNA degradation. MIR199A1 is involved in diverse biological processes including cellular proliferation, differentiation, hypoxic adaptation, stem cell maintenance, and immune response. Its dysregulation has been implicated in multiple cancer types (gastric, breast, ovarian, liver, melanoma), cardiovascular injury, and stem cell biology. As a gene regulator, it modulates the expression of several clinically relevant targets (SIRT1, FZD6, MET, HIF1α, LCOR) and influences disease progression, therapy response, and prognosis. MIR199A1 is being explored as a diagnostic/prognostic biomarker, as well as a potential therapeutic target using miRNA mimics or anti-miRNA oligonucleotides. Key therapeutic and safety challenges arise from its broad and context-dependent activity in normal and diseased tissues[1][2][3][4][5].

Other names

hsa-mir-199a-1MIR-199-sMIRN199A1mir-199a-1miR-199a-3pmiR-199a-5p

Post-transcriptional silencing of target mRNAs via seed region binding and inhibition of translation or induction of mRNA degradation (e.g., targeting SIRT1, FZD6, MAP3K11, LCOR, HIF1α)