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Chemical Biology of Nucleic Acid Modifications

A special issue of Current Issues in Molecular Biology (ISSN 1467-3045). This special issue belongs to the section "Biochemistry, Molecular and Cellular Biology".

Deadline for manuscript submissions: closed (31 August 2024) | Viewed by 2427

Special Issue Editor

Chemistry Department, Boston College, Chestnut Hill, MA 02467, USA
Interests: nucleic acid chemistry; fluorescent labelling of nucleic acid; directed evolution of enzyme in RNA research; RNA sequencing/analyses

Special Issue Information

Dear Colleagues,

Nucleic acids, including DNA and RNA, are the building blocks of life; they are essential for storing and transmitting genetic information. In eukaryotic species, nucleic acids carry a wide range of distinct chemical changes that can affect how genetic information is transmitted and have a significant impact on a number of cellular functions. Both base and backbone alterations are becoming more and more important. Furthermore, nucleic acids, particularly those that have been modified, are suitable and appealing tools for medical applications. Some examples include antisense oligonucleotides (ASOs), small interfering RNAs (siRNAs), aptamers, microRNAs, mRNAs, and gene-editing guides. To improve their chemical and biological stability and expand their chemical diversity, chemically modified DNA and RNA analogues on backbones, sugars, or nucleobases, and even novel bases or base pairs, have been developed. This Special Issue investigates the dynamic alterations that take place within these molecules, providing information on how these modifications affect gene expression, epigenetics, and numerous cellular functions. At the same time, advances in therapeutics based on modified nucleic acids were studied. We want to compile the most recent research on the fundamental issues in the field of nucleic acid manipulation.

Dr. Zhiyong He
Guest Editor

Manuscript Submission Information

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Keywords

  • DNA
  • RNA
  • nucleic acid modification
  • DNA methylation
  • gene expression
  • RNA sequencing
  • antisense oligonucleotides
  • siRNA
  • aptamers
  • mRNA
  • gene editing

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Published Papers (1 paper)

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Review

17 pages, 1140 KiB  
Review
Peptide–Oligonucleotide Conjugation: Chemistry and Therapeutic Applications
by Anna L. Malinowska, Harley L. Huynh and Sritama Bose
Curr. Issues Mol. Biol. 2024, 46(10), 11031-11047; https://doi.org/10.3390/cimb46100655 - 30 Sep 2024
Viewed by 1913
Abstract
Oligonucleotides have been identified as powerful therapeutics for treating genetic disorders and diseases related to epigenetic factors such as metabolic and immunological dysfunctions. However, they face certain obstacles in terms of limited delivery to tissues and poor cellular uptake due to their large [...] Read more.
Oligonucleotides have been identified as powerful therapeutics for treating genetic disorders and diseases related to epigenetic factors such as metabolic and immunological dysfunctions. However, they face certain obstacles in terms of limited delivery to tissues and poor cellular uptake due to their large size and often highly charged nature. Peptide–oligonucleotide conjugation is an extensively utilized approach for addressing the challenges associated with oligonucleotide-based therapeutics by improving their delivery, cellular uptake and bioavailability, consequently enhancing their overall therapeutic efficiency. In this review, we present an overview of the conjugation of oligonucleotides to peptides, covering the different strategies associated with the synthesis of peptide–oligonucleotide conjugates (POC), the commonly used peptides employed to generate POCs, with the aim to develop oligonucleotides with favourable pharmacokinetic (PK) or pharmacodynamic (PD) properties for therapeutic applications. The advantages and drawbacks of the synthetic methods and applications of POCs are also described. Full article
(This article belongs to the Special Issue Chemical Biology of Nucleic Acid Modifications)
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