TFIIH-p52ΔC defines a ninth xeroderma pigmentosum complementation-group XP-J and restores TFIIH stability to p8-defective trichothiodystrophy.

ABSTRACT: Few drugs are available for rare diseases due to economic disincentives. However, tailored medications for extremely rare disorders (N-of-1) offer a ray of hope. Artificial antisense oligonucleotides (ASOs) are now best known for their use in spinal muscular atrophy (SMA). The success of nusinersen/Spinraza for SMA indicates the potential of ASO therapies for other rare conditions. We propose a strategy to develop N-of-1 ASOs for treating one form of trichothiodystrophy (TTD), a rare condition with multisystem abnormalities and reduced life expectancy, associated with instability and greatly reduced amounts of the DNA-repair/transcription factor TFIIH. The therapeutic targets carry mutations in GTF2H5, encoding the TFIIH-p8 subunit. This approach was inspired by the diagnosis and molecular

SUBMITTER: Nakazawa Y 

PROVIDER: S-EPMC12618060 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature