ReviewJournal of biomedical science2026
The current landscape of mRNA therapy and the strategies for mRNA purification and dsRNA removal.
Review in Journal of biomedical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
9 authors.
Funding
Abstract
Messenger RNA (mRNA) technology has emerged as a cornerstone in vaccine development and therapeutic applications, offering key benefits such as high potency, rapid scalability, and cost-effectiveness. The success of COVID-19 mRNA vaccines has underscored their efficacy and safety. However, residual byproducts generated during mRNA synthesis, such as unincorporated caps, nucleoside triphosphates (NTPs), DNA templates, enzymes, abortive transcripts, and double-stranded RNA (dsRNA), pose significant challenges to the clinical application of the RNA therapy. Among these, dsRNA is particularly problematic as it can activate various innate immune responses, suppress mRNA translation and potentially compromise the therapeutic efficacy of mRNA. Therefore, effectively removing dsRNA from in vitro synthesized mRNA is essential before its used in preclinical or clinical settings. In this review article, we provide a comprehensive overview of current mRNA development pipelines and ongoing clinical trials, and recent advances in mRNA purification techniques. Specifically, we focus on strategies for dsRNA removal, which can be broadly categorized into two approaches: (1) separating or removing dsRNA from in vitro transcription (IVT) mRNA products using methods such as RP-HPLC chromatography and cellulose-based purification; and (2) minimizing dsRNA formation during IVT by employing engineered RNA polymerase mutants, chaotropic agents, and magnetic beads, as well as modifying/optimizing DNA templates or RNA molecules to reduce dsRNA generation. We also discuss the advantages and limitations of these purification methods, the factors influencing the selection of purification strategies, and explore potential future directions for improving dsRNA purification technologies and their applications in mRNA-based therapeutics.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.