microRNA 548as (miR-548as)

microRNA 548as (miR-548as, hsa-mir-548as, MIR548AS) is a member of the large, **primate-specific miR-548 microRNA gene family**[2][4]. MicroRNAs (miRNAs) are short non-coding RNAs that regulate gene expression post-transcriptionally by binding to complementary sequences in target messenger RNAs (mRNAs), resulting in translational repression or mRNA degradation[3]. The miR-548 family influences numerous biological pathways, including proliferation, apoptosis, immune signaling, and cancer-related pathways[1][2][4]. miR-548ah (a closely related family member) has been shown to target key immune receptors, such as IFN-γR1, suppressing immune responses and playing a role in viral pathogenesis and immune regulation in chronic hepatitis B[1]. Various members of the miR-548 family, including miR-548a-5p, have been implicated in the regulation of **tumor suppressor genes (e.g., Tg737)** and have functional roles in hepatocellular carcinoma and other cancers by modulating cell cycle, proliferation, and apoptosis[2]. Expression levels of miR-548 family members have shown utility as biomarkers for disease states, particularly in cancer and cardiovascular disease[2][3]. There is currently no evidence that miR-548as itself is a *direct therapeutic target* (such as a receptor, enzyme, transporter, or ion channel), and it is more accurately described as a *regulatory RNA molecule* or a disease biomarker[2][3][4]. **Important note:** There is insufficient public characterization of the specific miR-548as (MIR548AS, hsa-mir-548as) variant in peer-reviewed sources; most detailed studies refer to related members of the miR-548 family (miR-548ah, miR-548a-5p, miR-548d-3p, etc.), some of which are sometimes inconsistently labeled. The core features described above reflect the overall biology and known functions of the miR-548 family[2][4]. If you require information about a specifically validated therapeutic target, miR-548as would not be classified as such at this time.

Other names

hsa-mir-548asMIR548ASmicroRNA-548as