Long non-coding RNA IMSET (IMSET)

Long non-coding RNA IMSET, also known as Incubator of MET, is a recently characterized regulatory RNA molecule that serves as a critical driver in the pathogenesis of both metastatic cancer and cardiovascular disease. In oncology, specifically papillary thyroid cancer, IMSET functions as an epigenetic scaffold that recruits histone-modifying enzymes such as MLL1 to the promoter region of the MET proto-oncogene, thereby upregulating its transcription and activating downstream oncogenic signaling pathways (Wang et al., 2021, Cell Death & Disease). This activity promotes cell survival, migration, and the epithelial-mesenchymal transition (EMT), which are essential for tumor invasion and metastasis. Beyond its role in cancer, IMSET has been identified as a master regulator of pro-inflammatory macrophage behavior in atherosclerosis, where its expression is associated with the development of unstable arterial plaques (Johnson et al., 2024, University of Bristol). Therapeutic strategies are currently focused on using antisense oligonucleotides (ASOs) or other RNA-targeting modalities to silence IMSET, aiming to reduce MET-driven tumor growth or stabilize atherosclerotic plaques to prevent heart attacks and strokes. Given its specific upregulation in diseased tissues, IMSET represents a high-potential target for precision medicine and a valuable biomarker for disease progression and patient stratification.

Other names

lncRNA-IMSETIncubator of METIncubator of MET signaling-induced epithelial-mesenchymal transitionLINC01488

Epigenetic enhancement of MET proto-oncogene transcription through recruitment of the MLL1 histone methyltransferase complex to the gene promoter.