MicroRNA 548h-5 (MIR548H5)

MicroRNA 548h-5 is a human-specific member of the miR-548 family. Like other microRNAs, it acts by binding to complementary sequences in target mRNAs, causing their degradation or repression of translation. The miR-548h-5 has been implicated in regulation of inflammatory responses, particularly by modulating the expression and release of HMGB1, a mediator of inflammation and tissue injury. Down-regulation of miR-548h-5 is associated with increased HMGB1 levels in human amniotic epithelial cells and may contribute to the pathogenesis of preterm birth, suggesting a role in reproductive biology and immune regulation. Broader research on the miR-548 family suggests possible involvement in cancer, cellular differentiation, and regulation of estrogen receptor sensitivity, but specific roles and validated interacting drugs for MIR548H5 are not established. The designation "microRNA 548h-5" (MIR548H5) is not a protein, receptor, or classical drug target, but rather a small regulatory RNA; any drug development efforts would be based on RNA mimicry or inhibition, not small-molecule binding or classic ligand behavior.

Other names

hsa-mir-548h-5miR-548h-5MIR548H5

Inhibition or mimicry of miR-548h-5 leads to up- or downregulation of target mRNAs such as high mobility group box 1 (HMGB1); gene silencing by RNA interference