Solid-phase synthesis of oligonucleotide conjugates useful for delivery and targeting of potential nucleic acid
1Department of Chemistry, University of Turku, FIN-20014 Turku, Finland. harlon@utu.fi
Abstract:
Olignucleotide-based drugs show promise as a novel form of chemotherapy. Among the hurdles that have to be overcome on the way of applicable nucleic acid therapeutics, inefficient cellular uptake and subsequent release from endosomes to cytoplasm appear to be the most severe ones. Covalent conjugation of oligonucleotides to molecules that expectedly facilitate the internalization, targets the conjugate to a specific cell-type or improves the parmacokinetics offers a possible way to combat against these shortcomings. Since workable chemistry is a prerequisite for biological studies, development of efficient and reproducible methods for preparation of various types of oligonucleotide conjugates has become a subject of considerable importance. The present review summarizes the advances made in the solid-supported synthesis of oligonucleotide conjugates aimed at facilitating the delivery and targeting of nucleic acid drugs.
Insights
Oligonucleotide drugs face challenges in cellular delivery. This review covers advances in solid-supported synthesis for creating effective oligonucleotide conjugates to improve drug delivery and targeting.
Area of Science:
- Medicinal Chemistry
- Drug Delivery
- Biotechnology
Background:
- Oligonucleotide-based drugs show potential as a new chemotherapy approach.
- Key challenges include inefficient cellular uptake and endosomal escape for nucleic acid therapeutics.
- Covalent conjugation of oligonucleotides can enhance cellular internalization, targeting, and pharmacokinetics.
Purpose of the Study:
- To review advancements in the solid-supported synthesis of oligonucleotide conjugates.
- To highlight methods for overcoming delivery and targeting challenges in nucleic acid therapeutics.
- To emphasize the importance of efficient chemistry for developing oligonucleotide drug conjugates.
Main Methods:
- Focus on solid-supported synthesis techniques for oligonucleotide conjugation.
- Discussion of chemical strategies for creating various types of oligonucleotide conjugates.
- Review of methods facilitating cellular delivery and targeting of nucleic acid drugs.
Main Results:
- Summarizes progress in solid-supported synthesis of oligonucleotide conjugates.
- Highlights the role of conjugation in improving cellular uptake and endosomal escape.
- Demonstrates the importance of conjugation for targeted delivery of nucleic acid therapeutics.
Conclusions:
- Solid-supported synthesis is crucial for developing effective oligonucleotide conjugates.
- Conjugation strategies are vital for overcoming major hurdles in nucleic acid drug delivery.
- Advancements in synthesis pave the way for applicable nucleic acid therapeutics.
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