Alpha-synuclein gene regulatory DNA (SNCA regulatory DNA)

Alpha-synuclein gene regulatory DNA refers to the non-coding genomic sequences, including the promoter and Intron 1, that control the expression of the SNCA gene (UniProt P37840). Overexpression of the alpha-synuclein protein is a central factor in the development of Parkinson's disease and other synucleinopathies, where it aggregates to form toxic Lewy bodies (PubMed: 29330501). Genetic variations and epigenetic alterations, such as the hypomethylation of SNCA Intron 1, are associated with increased gene expression and disease progression (PubMed: 19893526). Therapeutic strategies targeting these regulatory elements aim to reduce alpha-synuclein production at the source using advanced modalities like zinc finger protein transcription factors (ZFP-TFs) or CRISPR-based epigenetic editors (PubMed: 30206230). These approaches seek to silence or dampen transcription by inducing DNA methylation or blocking RNA polymerase access. While promising, a significant challenge lies in precisely modulating expression to avoid the complete depletion of alpha-synuclein, which is necessary for normal synaptic vesicle trafficking and neurotransmitter release (PubMed: 21911467). Consequently, this target represents a high-precision approach to treating neurodegeneration by addressing the underlying genetic dysregulation.

Other names

SNCA promoterSNCA Intron 1Alpha-synuclein regulatory elementsNACP gene regulatory region

Transcriptional repression of the SNCA gene through epigenetic modification (e.g., DNA methylation) or steric hindrance of the transcriptional machinery at the promoter or Intron 1 regions (PubMed: 30206230).