RNA editing as a therapeutic approach for retinal gene therapy requiring long coding sequences

Area of Science:

• Biochemistry
• Molecular Biology
• Genetics

Background:

• RNA editing is a therapeutic strategy for genetic diseases, targeting gene expression at the transcript level.
• Programmable correction of G>A and T>C RNA mutations is achievable using site-directed RNA-targeting and deaminase enzymes.
• Inherited retinal degenerations caused by large gene mutations present challenges for traditional gene therapy.

Purpose of the Study:

• To review current site-directing RNA editing systems.
• To explore the potential of RNA editing as a therapeutic approach for inherited retinal degeneration.
• To discuss RNA editing as an alternative to gene replacement for specific genetic disorders.

Main Methods:

• Utilizing site-directed RNA-targeting mechanisms.
• Employing engineered deaminase enzymes for RNA base editing.
• Reviewing existing literature on RNA editing technologies and their clinical applications.

Main Results:

• RNA editing provides a method for programmable correction of specific RNA mutations.
• This technology offers a potential therapeutic avenue for genetic diseases, including inherited retinal degenerations.
• RNA editing may provide a safer profile compared to DNA editing due to its transient nature.

Conclusions:

• RNA editing is a promising therapeutic strategy for genetic diseases.
• It presents a viable alternative to gene replacement for conditions like inherited retinal degeneration.
• Further translation of RNA editing systems to clinical practice is warranted.