NeuralCipher Research overview
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The O-GlcNAc Transferase (OGT) is responsible for the addition of β-O-linked N-acetyl-D-glucosamine (O-GlcNAc) to serine and threonine residues, thereby regulating more than 8000 human proteins through O-GlcNAcylation. In the brain, reduced O-GlcNAc levels, which can arise from insufficient OGT activity, have been increasingly linked to aging-related neurodegenerative diseases such as Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis. While current strategies focus on restoring O-GlcNAc levels via O-GlcNAcase (OGA) inhibition, recent discoveries highlight transcript-level regulation of OGT as a direct and promising therapeutic target. This concept article explores the role of intron detention and decoy exon-mediated splicing repression in limiting OGT pre-mRNA maturation and proposes the use of antisense oligonucleotides or selective splicing factor degraders to promote productive splicing and nuclear export of OGT mRNA. By enhancing OGT expression independently of O-GlcNAc feedback, these approaches aim to restore proteostasis and improve resilience to neurodegeneration, offering a novel therapeutic approach for aging-related neurodegenerative diseases.
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