MicroRNA 4434 (miR-4434)

MicroRNA 4434 (miR-4434) is a small, non-coding RNA molecule found in humans, part of the microRNA (miRNA) family that regulates gene expression at the post-transcriptional level by binding complementary sequences in the 3’ untranslated regions of target mRNAs, leading to repression or degradation of the mRNA. miR-4434 has been shown to regulate the expression of several genes involved in cellular growth, apoptosis, the cell cycle, immune response, and development, notably including Growth arrest-specific protein 2 (GAS2), P21-activated kinase 1 (PAK1), leptin receptor overlapping transcript (LEPROT), PATZ1, and ST6GAL1. Its dysregulation can negatively affect these targets, which has implications for processes such as cell proliferation, cell survival, apoptosis, and inflammation; current research suggests a potential (but not yet clinically validated) role in cancer and liver disease. miR-4434 itself has not been established as a direct drug target, but experimental modulation (e.g., by antagomiRs) in cellular models can influence the expression of proteins relevant for cell cycle regulation and survival. No evidence supports canonical direct drug targeting of miR-4434 in clinical practice—and therefore, it is not regarded as a therapeutic target in the traditional pharmacological sense. No interacting drugs or validated clinical biomarkers are established for this miRNA. If more granular disease associations or druggability emerge in future published studies, the classification might change.

Other names

hsa-miR-4434hsa-mir-4434MIR4434

For hypothetical drug modulation: AntagomiR (inhibitor) blocks miR-4434 function via hybridization, preventing miR-4434 from repressing its mRNA targets.