Locked and unlocked nucleosides in functional nucleic acids

Area of Science:

• Biochemistry
• Molecular Biology
• Nanotechnology

Background:

• Nucleic acids possess diverse structures valuable for therapeutics and nanotechnology.
• Structural and biochemical stability are key challenges in nucleic acid applications.
• Modifications and nucleoside derivatives are employed to enhance stability.

Purpose of the Study:

• To review the application of Locked Nucleic Acid (LNA) and Unlocked Nucleic Acid (UNA) monomers.
• To highlight their use in functional nucleic acids, including aptamers, ribozymes, and DNAzymes.

Main Methods:

• Literature review of studies utilizing LNA and UNA monomers.
• Analysis of structural and functional properties conferred by LNA and UNA incorporation.
• Examination of applications in aptamers, ribozymes, and DNAzymes.

Main Results:

• LNA and UNA monomers significantly improve the stability of functional nucleic acids.
• These modified monomers enable novel structural conformations and enhanced binding affinities.
• Applications in therapeutics and nanotechnology are demonstrably advanced by LNA/UNA incorporation.

Conclusions:

• LNA and UNA are versatile building blocks for creating robust functional nucleic acids.
• Their unique properties offer significant advantages for therapeutic and biotechnological innovations.
• Continued exploration of LNA and UNA is crucial for advancing nucleic acid-based technologies.