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Published on: February 24, 2026
Antisense therapeutics and the treatment of CNS disease
Laura B Jaeger1, William A Banks
1Saint Louis University School of Medicine, Department of Pharmacology and Physiology, USA.
Abstract:
Antisense oligonucleotides (ONs) have great therapeutic potential for conditions in which aberrant protein production results in pathology. This method of reducing the expression of a target gene is both precise and sequence-specific. Although there are many applications for antisense ONs as central nervous system (CNS) therapeutics, systemically administered antisense ONs must be capable of crossing the blood-brain barrier (BBB) in quantities effective enough to alter protein production in the CNS. Because antisense ONs are large, highly polar molecules, their rate of transport across the BBB is likely to be low. Recent studies have shown that antisense ONs are capable of crossing the BBB without the aid of a carrier system, however little is known about the molecular mechanisms which mediate this transport. This review will focus on nucleic acid chemistries suitable for in vivo research and their potential applications in the treatment of CNS disease.
Insights
Antisense oligonucleotides (ONs) show promise for treating central nervous system (CNS) diseases by reducing target gene expression. This review explores ONs that can cross the blood-brain barrier (BBB) for effective CNS therapeutics.
Area of Science:
- Biochemistry
- Neuroscience
- Molecular Biology
Background:
- Antisense oligonucleotides (ONs) offer precise, sequence-specific gene expression reduction for treating diseases caused by aberrant protein production.
- Effective central nervous system (CNS) therapeutics require systemically administered ONs to cross the blood-brain barrier (BBB) efficiently.
- The transport mechanisms of large, polar ONs across the BBB are not well understood, despite their therapeutic potential.
Purpose of the Study:
- To review nucleic acid chemistries suitable for in vivo research involving antisense oligonucleotides (ONs).
- To explore the potential applications of ONs in treating central nervous system (CNS) diseases.
- To discuss the challenges and mechanisms of ONs crossing the blood-brain barrier (BBB).
Main Methods:
- Literature review focusing on antisense oligonucleotide (ON) chemistry.
- Analysis of studies investigating ON transport across the blood-brain barrier (BBB).
- Examination of in vivo research and therapeutic applications for CNS diseases.
Main Results:
- Antisense oligonucleotides (ONs) possess significant therapeutic potential for various pathologies.
- ONs can cross the blood-brain barrier (BBB) without carrier systems, though mechanisms remain unclear.
- Specific nucleic acid chemistries are being developed for effective in vivo research and CNS disease treatment.
Conclusions:
- Antisense oligonucleotides (ONs) are promising for CNS disease treatment, contingent on effective BBB penetration.
- Further research into the molecular mechanisms of ON transport across the BBB is crucial.
- Optimized ON chemistries hold potential for advancing the treatment of neurological disorders.
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