Long non-coding RNA OIP5 antisense RNA 1 (OIP5-AS1)

Long non-coding RNA OIP5 antisense RNA 1 (OIP5-AS1), also widely known as Cyrano, is a highly conserved lncRNA that serves as a critical post-transcriptional regulator in various biological contexts. It primarily functions as a competing endogenous RNA (ceRNA), or molecular sponge, by sequestering microRNAs (such as miR-7, miR-424, and miR-429) and RNA-binding proteins like HuR, thereby preventing them from suppressing their target mRNAs. This activity allows OIP5-AS1 to modulate essential cellular processes including cell proliferation, apoptosis, and neuronal differentiation. In clinical contexts, OIP5-AS1 is frequently dysregulated and is implicated in the progression of numerous cancers, where it typically acts as an oncogene, though it can exhibit tumor-suppressive properties in specific tissues like lung adenocarcinoma. Beyond oncology, it plays significant roles in neurodegenerative diseases, cardiovascular disorders, and inflammatory conditions such as rheumatoid arthritis. While no targeted therapies are currently FDA-approved, OIP5-AS1 is an active area of research for RNA-based therapeutics, including antisense oligonucleotides and siRNA-mediated interventions.

Other names

CyranoOIP5AS1OIP5 antisense RNA 1Linc-OIP5Oip5os11700020I14Rik

Acts as a competing endogenous RNA (ceRNA) or molecular sponge for various microRNAs and RNA-binding proteins, thereby modulating the expression of downstream target mRNAs and signaling pathways.