Glossary Term
MicroRNA
PCR TermsEN
Definition
A sequence of single-stranded RNA, that is 20-25 nucleotides in length, which is transcribed from DNA but is not translated into a protein. This nucleic acid may regulate the transcription or translation of other genes.
Extended Notes
Source: National Cancer Institute, NCI Thesaurus 26.09d, C25966. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Also Known As
Micro RNAmicro-RNAMicroRNAMIRMIRNmiRNASmall Temporal RNA
References
- NCI Thesaurus 26.09d — MicroRNA (C25966)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C25966. NCI definition, reproduced without modification under CC BY 4.0.
- MicroRNA-26a-5p inhibits high glucose-induced Müller cells apoptosis by mediating PTEN/PI3K/Akt pathway. — Int J Ophthalmol, 2026-10-18 (PMID 42761654; literature)
- Corrigendum to "Anti-cancer effect of microRNA-139-3p on laryngeal squamous cell carcinoma by targeting rab5a: In vitro and in vivo studies" [Pathol.-Res. Pract., 216(2020)153194]. — Pathol Res Pract, 2026-10-09 (PMID 42855324; literature)