5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion

Abstract Nonsense‐mediated RNA decay (NMD) is an RNA‐based quality control mechanism that eliminates transcripts bearing premature translation termination codons (PTC). Approximately, one‐third of all inherited disorders and some forms of cancer are caused by nonsense or frame shift mutations that i...

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Main Authors: Madhuri Bhuvanagiri, Joe Lewis, Kerstin Putzker, Jonas P Becker, Stefan Leicht, Jeroen Krijgsveld, Richa Batra, Brad Turnwald, Bogdan Jovanovic, Christian Hauer, Jana Sieber, Matthias W Hentze, Andreas E Kulozik
Format: Article
Language:English
Published: Springer Nature 2014-10-01
Series:EMBO Molecular Medicine
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Online Access:https://doi.org/10.15252/emmm.201404461
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author Madhuri Bhuvanagiri
Joe Lewis
Kerstin Putzker
Jonas P Becker
Stefan Leicht
Jeroen Krijgsveld
Richa Batra
Brad Turnwald
Bogdan Jovanovic
Christian Hauer
Jana Sieber
Matthias W Hentze
Andreas E Kulozik
author_facet Madhuri Bhuvanagiri
Joe Lewis
Kerstin Putzker
Jonas P Becker
Stefan Leicht
Jeroen Krijgsveld
Richa Batra
Brad Turnwald
Bogdan Jovanovic
Christian Hauer
Jana Sieber
Matthias W Hentze
Andreas E Kulozik
author_sort Madhuri Bhuvanagiri
collection DOAJ
description Abstract Nonsense‐mediated RNA decay (NMD) is an RNA‐based quality control mechanism that eliminates transcripts bearing premature translation termination codons (PTC). Approximately, one‐third of all inherited disorders and some forms of cancer are caused by nonsense or frame shift mutations that introduce PTCs, and NMD can modulate the clinical phenotype of these diseases. 5‐azacytidine is an analogue of the naturally occurring pyrimidine nucleoside cytidine, which is approved for the treatment of myelodysplastic syndrome and myeloid leukemia. Here, we reveal that 5‐azacytidine inhibits NMD in a dose‐dependent fashion specifically upregulating the expression of both PTC‐containing mutant and cellular NMD targets. Moreover, this activity of 5‐azacytidine depends on the induction of MYC expression, thus providing a link between the effect of this drug and one of the key cellular pathways that are known to affect NMD activity. Furthermore, the effective concentration of 5‐azacytidine in cells corresponds to drug levels used in patients, qualifying 5‐azacytidine as a candidate drug that could potentially be repurposed for the treatment of Mendelian and acquired genetic diseases that are caused by PTC mutations.
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spelling doaj.art-f60c809ba8904c2d9ca28ebfc530c5e82024-10-28T08:53:16ZengSpringer NatureEMBO Molecular Medicine1757-46761757-46842014-10-016121593160910.15252/emmm.2014044615‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashionMadhuri Bhuvanagiri0Joe Lewis1Kerstin Putzker2Jonas P Becker3Stefan Leicht4Jeroen Krijgsveld5Richa Batra6Brad Turnwald7Bogdan Jovanovic8Christian Hauer9Jana Sieber10Matthias W Hentze11Andreas E Kulozik12Molecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergEuropean Molecular Biology LaboratoryEuropean Molecular Biology LaboratoryMolecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergEuropean Molecular Biology LaboratoryEuropean Molecular Biology LaboratoryDepartment of Mathematics and Computer Science, University of Southern DenmarkMolecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergCentre for Molecular Biology of the University of Heidelberg, University of HeidelbergMolecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergMolecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergMolecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergMolecular Medicine Partnership Unit, European Molecular Biology Laboratory, University of HeidelbergAbstract Nonsense‐mediated RNA decay (NMD) is an RNA‐based quality control mechanism that eliminates transcripts bearing premature translation termination codons (PTC). Approximately, one‐third of all inherited disorders and some forms of cancer are caused by nonsense or frame shift mutations that introduce PTCs, and NMD can modulate the clinical phenotype of these diseases. 5‐azacytidine is an analogue of the naturally occurring pyrimidine nucleoside cytidine, which is approved for the treatment of myelodysplastic syndrome and myeloid leukemia. Here, we reveal that 5‐azacytidine inhibits NMD in a dose‐dependent fashion specifically upregulating the expression of both PTC‐containing mutant and cellular NMD targets. Moreover, this activity of 5‐azacytidine depends on the induction of MYC expression, thus providing a link between the effect of this drug and one of the key cellular pathways that are known to affect NMD activity. Furthermore, the effective concentration of 5‐azacytidine in cells corresponds to drug levels used in patients, qualifying 5‐azacytidine as a candidate drug that could potentially be repurposed for the treatment of Mendelian and acquired genetic diseases that are caused by PTC mutations.https://doi.org/10.15252/emmm.2014044615‐azacytidineMYCnonsense‐mediated decaypremature termination codons
spellingShingle Madhuri Bhuvanagiri
Joe Lewis
Kerstin Putzker
Jonas P Becker
Stefan Leicht
Jeroen Krijgsveld
Richa Batra
Brad Turnwald
Bogdan Jovanovic
Christian Hauer
Jana Sieber
Matthias W Hentze
Andreas E Kulozik
5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion
EMBO Molecular Medicine
5‐azacytidine
MYC
nonsense‐mediated decay
premature termination codons
title 5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion
title_full 5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion
title_fullStr 5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion
title_full_unstemmed 5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion
title_short 5‐azacytidine inhibits nonsense‐mediated decay in a MYC‐dependent fashion
title_sort 5 azacytidine inhibits nonsense mediated decay in a myc dependent fashion
topic 5‐azacytidine
MYC
nonsense‐mediated decay
premature termination codons
url https://doi.org/10.15252/emmm.201404461
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