Microfibrillar-associated protein 5 mRNA 3' untranslated region (MFAP5 mRNA 3' UTR)

The Microfibrillar-associated protein 5 (MFAP5) mRNA 3' untranslated region (3' UTR) is a regulatory segment of the MFAP5 transcript that governs the stability and translation of the encoded protein. MFAP5, also known as MAGP2, is a secreted glycoprotein essential for the assembly of microfibrils and the structural integrity of the extracellular matrix (UniProt P55001). This 3' UTR contains specific binding sites for microRNAs, such as miR-200c and miR-133a, which act as post-transcriptional repressors to maintain physiological levels of MFAP5 (PubMed: 25252155). In several cancers, including ovarian and breast cancer, the dysregulation of this region or the loss of its targeting microRNAs leads to MFAP5 overexpression in the tumor stroma (PubMed: 24510013). High levels of MFAP5 promote aggressive tumor phenotypes by stimulating angiogenesis and activating the Notch and TGF-beta signaling pathways (PubMed: 20406990). Consequently, the MFAP5 mRNA 3' UTR is an attractive target for RNA-based therapeutics like antisense oligonucleotides (ASOs) or miRNA mimics designed to silence the gene (PubMed: 30104345). Such interventions aim to normalize the tumor microenvironment and inhibit metastatic progression. Preclinical studies have demonstrated that targeting this region can enhance the sensitivity of cancer cells to chemotherapy. Therapeutic challenges include the efficient delivery of RNA-targeting agents to the stroma and minimizing off-target effects on other microfibril-associated proteins.

Other names

MAGP2 mRNA 3' UTRMicrofibril-associated glycoprotein 2 mRNA 3' UTRMFAP5 3' UTRMAGP2 3' UTR

Antisense inhibition or RNA interference targeting the 3' untranslated region to reduce protein translation and promote mRNA degradation.