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The coming revolution: synthetic DNA and RNA for therapeutic and diagnostic applications

The discovery of the mRNA vaccines for the treatment of coronavirus, as well as new medicines for the treatment of genetic diseases, has been important in the quest of solutions for undrugable diseases in an unexpected short-time.

Thus, the chemical modifications of nucleic acids with diagnostic and therapeutic purposes is now a reality, a revolution that promises to give hopes on unsolved medical problems or optimize previous approaches, largely due to the research push for the development of mRNA vaccines against SARS-CoV-2 infection.

Now, the prestigious “The Chemical Record” journal has invited the Nucleic Acids Chemistry group, of IQAC-CSIC and CIBER-BBN and belonging to the Global Health Platform of CSIC, to describe the advances and modificacions of the nucleic acids in the last decade. The article, authored by Dr. Carme Fàbrega, Dr. Anna Aviñó and Dr. Ramon Eritja (coordinator and director, respectively, of Unit 29 of ICTS NANBIOSIS), reports the development of synthetic DNA and RNA for therapeutic and diagnostic applications.

The article describes the most important results from the Nucleic Acid Chemistry group in this area covering the international context that surrounded these studies. These include the development of modifications in potentially therapeutic oligonucleotides to enhance nuclease resistance as well as improving cellular uptake and avoiding side effects, and the advances in the use of DNA nanostructures in the controlled deposition of matter in surfaces and their potential application as drug delivery systems is reported.

Moreover, the article has been selected to illustrate the front cover of The Chemical Record, a journal of the Chemical Society in Japan, with a suggestive image that shows the research activity in this area. The back image is the three dimensional reconstruction of a DNA array described by the group of Dr. Seeman obtained by A. Garibotti in Barcelona. On the top the crystal structure of the Argonaute protein from the Protein Data Bank is shown. This protein is a natural player that helps the therapeutic action of RNA molecules. 

Read the full article in this link.

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Two great scientists and excellent people pioneers on Nucleic Acids Chemistry

Nucleic Acid Chemistry is an interdisciplinary discipline that combines organic chemistry, biochemistry, pharmacology, materials chemistry and biophysics. It started soon after the Watson–Crick model of DNA with the synthesis of the first dinucleotide, published in 1955. However, in the last decade, this field has blossomed, with the demonstration that Nucleic Acid Chemistry can provide innovative solutions to health problems such as vaccination, pathogen detection, and the treatment of metabolic or genetic diseases as well as providing important tools for the interrogation of cellular mechanisms.

Profesor Ramon Eritja, Scientific director of the Oligonucleotides Synthesis Platform U29 from ICTS NANBIOSIS will chair next January 13 a webinar on Frontiers in Nucleic Acid Chemistry, organized by the Journal Molecules in which some examples of the recent developments in Nucleic Acid Chemistry will be explained.

This webinar is dedicated to the memory of Prof. Enrique Pedroso one of pioneering researchers and leading Spanish scientist in Oligonucleotide and Peptide Synthesis who passed away in September of 2020. His contributions on the synthesis of modified oligonucleotides and especially oligonucleotide conjugates and cyclic oligonucleotides have opened new avenues in the search for novel applications of oligonucleotides. In addition, Enrique was deeply involved in the research and promotion of nucleic acid chemistry, as an active member of the IRT Society as well as organizing the Spanish Nucleosides Nucleotides and Nucleic Acids meetings (RANN).

During the preparation of the webinar we received the sad news of the decease of Prof. Ned Seeman from New York University who pioneered the field of DNA nanobiotechnology demonstrating that DNA is an excellent tool for the assembly of complex two and three-dimensional DNA lattices with important applications in several fields. 

We remained sad for the loss of these great scientists and excellent persons. 

Program and free registry for the webinar here

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