In Vitro Validation of Phosphorodiamidate Morpholino Oligomers

One of the crucial aspects of screening antisense oligonucleotides destined for therapeutic application is confidence that the antisense oligomer is delivered efficiently into cultured cells. Efficient delivery is particularly vital for antisense phosphorodiamidate morpholino oligomers, which have a...

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Main Authors: May T. Aung-Htut, Craig S. McIntosh, Kristin A. West, Sue Fletcher, Steve D. Wilton
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/24/16/2922
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author May T. Aung-Htut
Craig S. McIntosh
Kristin A. West
Sue Fletcher
Steve D. Wilton
author_facet May T. Aung-Htut
Craig S. McIntosh
Kristin A. West
Sue Fletcher
Steve D. Wilton
author_sort May T. Aung-Htut
collection DOAJ
description One of the crucial aspects of screening antisense oligonucleotides destined for therapeutic application is confidence that the antisense oligomer is delivered efficiently into cultured cells. Efficient delivery is particularly vital for antisense phosphorodiamidate morpholino oligomers, which have a neutral backbone, and are known to show poor gymnotic uptake. Here, we report several methods to deliver these oligomers into cultured cells. Although 4D-Nucleofector™ or Neon™ electroporation systems provide efficient delivery and use lower amounts of phosphorodiamidate morpholino oligomer, both systems are costly. We show that some readily available transfection reagents can be used to deliver phosphorodiamidate morpholino oligomers as efficiently as the electroporation systems. Among the transfection reagents tested, we recommend Lipofectamine 3000™ for delivering phosphorodiamidate morpholino oligomers into fibroblasts and Lipofectamine 3000™ or Lipofectamine 2000™ for myoblasts/myotubes. We also provide optimal programs for nucleofection into various cell lines using the P3 Primary Cell 4D-Nucleofector™ X Kit (Lonza), as well as antisense oligomers that redirect expression of ubiquitously expressed genes that may be used as positive treatments for human and murine cell transfections.
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spelling doaj.art-f8ef51a203554f95ae6f3c21d41e2ba52022-12-21T17:45:53ZengMDPI AGMolecules1420-30492019-08-012416292210.3390/molecules24162922molecules24162922In Vitro Validation of Phosphorodiamidate Morpholino OligomersMay T. Aung-Htut0Craig S. McIntosh1Kristin A. West2Sue Fletcher3Steve D. Wilton4Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, AustraliaCentre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, AustraliaCentre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, AustraliaCentre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, AustraliaCentre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, AustraliaOne of the crucial aspects of screening antisense oligonucleotides destined for therapeutic application is confidence that the antisense oligomer is delivered efficiently into cultured cells. Efficient delivery is particularly vital for antisense phosphorodiamidate morpholino oligomers, which have a neutral backbone, and are known to show poor gymnotic uptake. Here, we report several methods to deliver these oligomers into cultured cells. Although 4D-Nucleofector™ or Neon™ electroporation systems provide efficient delivery and use lower amounts of phosphorodiamidate morpholino oligomer, both systems are costly. We show that some readily available transfection reagents can be used to deliver phosphorodiamidate morpholino oligomers as efficiently as the electroporation systems. Among the transfection reagents tested, we recommend Lipofectamine 3000™ for delivering phosphorodiamidate morpholino oligomers into fibroblasts and Lipofectamine 3000™ or Lipofectamine 2000™ for myoblasts/myotubes. We also provide optimal programs for nucleofection into various cell lines using the P3 Primary Cell 4D-Nucleofector™ X Kit (Lonza), as well as antisense oligomers that redirect expression of ubiquitously expressed genes that may be used as positive treatments for human and murine cell transfections.https://www.mdpi.com/1420-3049/24/16/2922antisense oligonucleotidemorpholinoPMOtransfectionelectroporationexon skipping
spellingShingle May T. Aung-Htut
Craig S. McIntosh
Kristin A. West
Sue Fletcher
Steve D. Wilton
In Vitro Validation of Phosphorodiamidate Morpholino Oligomers
Molecules
antisense oligonucleotide
morpholino
PMO
transfection
electroporation
exon skipping
title In Vitro Validation of Phosphorodiamidate Morpholino Oligomers
title_full In Vitro Validation of Phosphorodiamidate Morpholino Oligomers
title_fullStr In Vitro Validation of Phosphorodiamidate Morpholino Oligomers
title_full_unstemmed In Vitro Validation of Phosphorodiamidate Morpholino Oligomers
title_short In Vitro Validation of Phosphorodiamidate Morpholino Oligomers
title_sort in vitro validation of phosphorodiamidate morpholino oligomers
topic antisense oligonucleotide
morpholino
PMO
transfection
electroporation
exon skipping
url https://www.mdpi.com/1420-3049/24/16/2922
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