RE1-silencing transcription factor (REST) (REST)

The RE1-silencing transcription factor (REST), also known as the neuron-restrictive silencer factor (NRSF), is a master transcriptional repressor that plays a pivotal role in neurogenesis and the maintenance of neuronal identity. It functions by binding to a specific 21-base pair DNA sequence known as the repressor element 1 (RE1) or neuron-restrictive silencer element (NRSE), where it recruits a variety of co-repressor complexes, including CoREST and mSin3, to induce epigenetic modifications such as histone deacetylation and methylation (NIH, 2016; Wikipedia, 2024). While REST is highly expressed in non-neuronal tissues and neural stem cells to silence neuronal genes, its downregulation is essential for the differentiation of neurons (MDPI, 2023). Dysregulation of the REST/NRSF complex is implicated in a wide range of pathologies, including neurodegenerative diseases like Huntington's and Alzheimer's, where aberrant nuclear localization or loss of function contributes to neuronal death (AlzDiscovery, 2021). In oncology, REST acts as a context-dependent oncogene or tumor suppressor; for instance, it is overexpressed in medulloblastoma and glioma but often lost in neuroendocrine tumors like small cell lung cancer (NIH, 2019). Therapeutic strategies targeting the REST/NRSF complex include small molecules that induce its degradation, mimetics that block its interaction with co-repressors, and inhibitors of its associated enzymatic components like HDACs and LSD1 (Protein Science, 2017).

Other names

Neuron-restrictive silencer factorNRSFX2 box repressorXBRREST4GINGF5HGF5DFNA27

Inhibition of REST-DNA binding, induction of REST degradation, or inhibition of associated co-repressors (HDACs, LSD1) to restore or modulate target gene expression.