Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts

ABSTRACTThe current letter to the editor describes the presence of RNA byproducts in small-scale in vitro transcription (IVT) reactions as evaluated by capillary gel electrophoresis, asymmetric flow field flow fractionation, immunoblotting, cell-free translation assays, and in IFN reporter cells. We...

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Main Authors: Combes Francis, Pettersson Frida J, Bui Thanh-Huong, Molska Alicja, Komissarov Artem, Parot Jérémie, Borgos Sven Even
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:RNA Biology
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/15476286.2024.2321764
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author Combes Francis
Pettersson Frida J
Bui Thanh-Huong
Molska Alicja
Komissarov Artem
Parot Jérémie
Borgos Sven Even
author_facet Combes Francis
Pettersson Frida J
Bui Thanh-Huong
Molska Alicja
Komissarov Artem
Parot Jérémie
Borgos Sven Even
author_sort Combes Francis
collection DOAJ
description ABSTRACTThe current letter to the editor describes the presence of RNA byproducts in small-scale in vitro transcription (IVT) reactions as evaluated by capillary gel electrophoresis, asymmetric flow field flow fractionation, immunoblotting, cell-free translation assays, and in IFN reporter cells. We compare standard T7 RNA polymerase (RNAP) based IVT reactions to two recently described protocols employing either urea supplementation or using the VSW3 RNAP. Our results indicate that urea supplementation yields considerably less RNA byproducts and positively affects the overall number of full-length transcripts. In contrast, VSW3 IVT reactions demonstrated a low yield and generated a higher fraction of truncated transcripts. Lastly, both urea mRNA and VSW3 mRNA elicited considerably less IFN responses after transfection in mouse macrophages.
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spelling doaj.art-9dfddd53d58d4585b4d1802f65af5b562024-02-27T12:18:56ZengTaylor & Francis GroupRNA Biology1547-62861555-85842024-12-012111610.1080/15476286.2024.2321764Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproductsCombes Francis0Pettersson Frida J1Bui Thanh-Huong2Molska Alicja3Komissarov Artem4Parot Jérémie5Borgos Sven Even6Department of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayDepartment of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayDepartment of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayDepartment of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayDepartment of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayDepartment of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayDepartment of Biotechnology and Nanomedicine, SINTEF, Trondheim, NorwayABSTRACTThe current letter to the editor describes the presence of RNA byproducts in small-scale in vitro transcription (IVT) reactions as evaluated by capillary gel electrophoresis, asymmetric flow field flow fractionation, immunoblotting, cell-free translation assays, and in IFN reporter cells. We compare standard T7 RNA polymerase (RNAP) based IVT reactions to two recently described protocols employing either urea supplementation or using the VSW3 RNAP. Our results indicate that urea supplementation yields considerably less RNA byproducts and positively affects the overall number of full-length transcripts. In contrast, VSW3 IVT reactions demonstrated a low yield and generated a higher fraction of truncated transcripts. Lastly, both urea mRNA and VSW3 mRNA elicited considerably less IFN responses after transfection in mouse macrophages.https://www.tandfonline.com/doi/10.1080/15476286.2024.2321764In vitro transcriptionureaVSW3RNA polymerasetranscript impuritiesmRNA byproducts
spellingShingle Combes Francis
Pettersson Frida J
Bui Thanh-Huong
Molska Alicja
Komissarov Artem
Parot Jérémie
Borgos Sven Even
Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts
RNA Biology
In vitro transcription
urea
VSW3
RNA polymerase
transcript impurities
mRNA byproducts
title Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts
title_full Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts
title_fullStr Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts
title_full_unstemmed Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts
title_short Urea supplementation improves mRNA in vitro transcription by decreasing both shorter and longer RNA byproducts
title_sort urea supplementation improves mrna in vitro transcription by decreasing both shorter and longer rna byproducts
topic In vitro transcription
urea
VSW3
RNA polymerase
transcript impurities
mRNA byproducts
url https://www.tandfonline.com/doi/10.1080/15476286.2024.2321764
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