Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) (NEAT1)

Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) is a long non-coding RNA (lncRNA) that serves as the essential structural scaffold for the assembly of paraspeckles, which are subnuclear bodies involved in gene regulation and RNA processing (Source: PubMed, PMID: 19211835). NEAT1 exists in two isoforms, NEAT1_1 and NEAT1_2, with the latter being critical for paraspeckle formation (Source: PubMed, PMID: 21075848). In oncology, NEAT1 is frequently overexpressed and acts as an oncogene by promoting cell proliferation, migration, and chemoresistance across various malignancies, including breast, lung, and prostate cancers (Source: PubMed, PMID: 30635105). Beyond cancer, NEAT1 plays significant roles in neurodegenerative diseases and inflammatory responses by modulating the sequestration of specific proteins and RNAs within paraspeckles (Source: PubMed, PMID: 25160510). Therapeutic targeting of NEAT1 is currently being explored using antisense oligonucleotides (ASOs) and small molecules designed to disrupt its secondary structure or expression, aiming to restore normal cellular homeostasis in disease states (Source: PubMed, PMID: 28234358). Additionally, NEAT1 has been implicated in the regulation of the innate immune response and viral replication, making it a versatile target for diverse therapeutic areas (Source: PubMed, PMID: 29339366).

Other names

Nuclear Enriched Abundant Transcript 1VRCMEN epsilon/betaTncRNANEAT1_1NEAT1_2

The primary mechanism of action for therapeutic agents targeting NEAT1 involves the use of antisense oligonucleotides (ASOs) to induce RNase H-mediated cleavage of the lncRNA transcript. This degradation leads to the dissolution of paraspeckles, subnuclear bodies for which NEAT1 is the essential scaffold, thereby releasing sequestered proteins and RNAs (e.g., SFPQ, NONO) and modulating downstream gene expression and signaling pathways involved in disease progression (Source: PubMed, PMID: 28234358).