Transcription factor 4 messenger RNA (TCF4 mRNA)

Transcription factor 4 (TCF4) mRNA is the transcript of the TCF4 gene, which encodes a basic helix-loop-helix (bHLH) transcription factor essential for neurodevelopment and cellular differentiation (UniProt P15884). It is a high-priority therapeutic target primarily due to its role in Fuchs' endothelial corneal dystrophy (FECD), where a CTG trinucleotide repeat expansion in the third intron leads to the accumulation of toxic nuclear RNA foci (PubMed: 28813368). These foci sequester essential RNA-binding proteins, causing widespread splicing defects and eventual death of corneal endothelial cells. Current therapeutic strategies utilize antisense oligonucleotides (ASOs) to selectively target and degrade these expanded transcripts or prevent the formation of toxic aggregates (PubMed: 30301443). Conversely, loss-of-function mutations or deletions in TCF4 lead to Pitt-Hopkins syndrome, a severe neurodevelopmental disorder, necessitating research into therapies that can upregulate mRNA expression or compensate for haploinsufficiency (PubMed: 23028330). TCF4 is also recognized as a major risk locus for schizophrenia, further emphasizing its critical role in maintaining normal central nervous system function.

Other names

TCF-4 mRNAE2-2 mRNASEF2 mRNAImmunoglobulin transcription factor 2 mRNAPTHS mRNATranscription factor 4

Antisense oligonucleotide-mediated degradation of toxic RNA repeats or splice modulation to reduce toxic gain-of-function and restore cellular homeostasis.