Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications

Nucleic acid-based therapeutics that control gene expression have been steadily progressing towards achieving their full clinical potential throughout the last few decades. Rapid progress has been achieved in RNAi-based therapy by optimizing high specificity and gene silencing efficiency using chemi...

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Main Authors: Sumit Gangopadhyay, Kiran R Gore
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:RNA Biology
Subjects:
Online Access:http://dx.doi.org/10.1080/15476286.2022.2052641
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author Sumit Gangopadhyay
Kiran R Gore
author_facet Sumit Gangopadhyay
Kiran R Gore
author_sort Sumit Gangopadhyay
collection DOAJ
description Nucleic acid-based therapeutics that control gene expression have been steadily progressing towards achieving their full clinical potential throughout the last few decades. Rapid progress has been achieved in RNAi-based therapy by optimizing high specificity and gene silencing efficiency using chemically modified siRNAs. Since 2018, four siRNA drugs – patisiran, givosiran, lumasiran, and inclisiran, were approved by the US FDA, providing a testament to the promise of RNAi therapeutics. Despite these promising results, safe and efficient siRNA delivery at the target site remains a major obstacle for efficient siRNA-based therapeutics. In this review, we have outlined the synergistic effects of emerging dual ribose modifications, including 2’,4’- and 2’,5’-modifications, 5’-E/Z-vinylphosphonate, and northern methanocarbacyclic (NMC) modifications that have contributed to drug-like effects in siRNA. These modifications enhance nuclease stability, prolong gene silencing efficiency, improve thermal stability, and exhibit high tissue accumulation. We also highlight the current progress in siRNA clinical trials. This review will help to understand the potential effects of dual ribose modifications and provides alternative ways to use extensive 2’-modifications in siRNA drugs. Moreover, the minimal number of these dual ribose modifications could be sufficient to achieve the desired therapeutic effect. In future, detailed in vivo studies using these dual ribose modifications could help to improve the therapeutic effects of siRNA. Rational design could further open doors for the rapid progress in siRNA therapeutics.
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spelling doaj.art-1b442cb0076743a195ab1c13e6b38ea22023-12-05T16:09:51ZengTaylor & Francis GroupRNA Biology1547-62861555-85842022-12-0119145246710.1080/15476286.2022.20526412052641Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modificationsSumit Gangopadhyay0Kiran R Gore1Indian Institute of Technology KharagpurIndian Institute of Technology KharagpurNucleic acid-based therapeutics that control gene expression have been steadily progressing towards achieving their full clinical potential throughout the last few decades. Rapid progress has been achieved in RNAi-based therapy by optimizing high specificity and gene silencing efficiency using chemically modified siRNAs. Since 2018, four siRNA drugs – patisiran, givosiran, lumasiran, and inclisiran, were approved by the US FDA, providing a testament to the promise of RNAi therapeutics. Despite these promising results, safe and efficient siRNA delivery at the target site remains a major obstacle for efficient siRNA-based therapeutics. In this review, we have outlined the synergistic effects of emerging dual ribose modifications, including 2’,4’- and 2’,5’-modifications, 5’-E/Z-vinylphosphonate, and northern methanocarbacyclic (NMC) modifications that have contributed to drug-like effects in siRNA. These modifications enhance nuclease stability, prolong gene silencing efficiency, improve thermal stability, and exhibit high tissue accumulation. We also highlight the current progress in siRNA clinical trials. This review will help to understand the potential effects of dual ribose modifications and provides alternative ways to use extensive 2’-modifications in siRNA drugs. Moreover, the minimal number of these dual ribose modifications could be sufficient to achieve the desired therapeutic effect. In future, detailed in vivo studies using these dual ribose modifications could help to improve the therapeutic effects of siRNA. Rational design could further open doors for the rapid progress in siRNA therapeutics.http://dx.doi.org/10.1080/15476286.2022.2052641sirnasugar modificationvinylphosphonategene silencingrnai clinical trial
spellingShingle Sumit Gangopadhyay
Kiran R Gore
Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications
RNA Biology
sirna
sugar modification
vinylphosphonate
gene silencing
rnai clinical trial
title Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications
title_full Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications
title_fullStr Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications
title_full_unstemmed Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications
title_short Advances in siRNA therapeutics and synergistic effect on siRNA activity using emerging dual ribose modifications
title_sort advances in sirna therapeutics and synergistic effect on sirna activity using emerging dual ribose modifications
topic sirna
sugar modification
vinylphosphonate
gene silencing
rnai clinical trial
url http://dx.doi.org/10.1080/15476286.2022.2052641
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