Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation

Although the mechanism of DNA demethylating drugs has been understood for many years, the direct effect of these drugs on methylation of the complementary strands of DNA has not been formally demonstrated. By using hairpin-bisulphite sequencing, we describe the kinetics and pattern of DNA methylatio...

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Main Authors: Issam M Mayyas, Robert J Weeks, Robert C Day, Helena E Magrath, Karina M O’Connor, Olga Kardailsky, Timothy A Hore, Mark B Hampton, Ian M Morison
Format: Article
Language:English
Published: Taylor & Francis Group 2021-11-01
Series:Epigenetics
Subjects:
Online Access:http://dx.doi.org/10.1080/15592294.2020.1861169
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author Issam M Mayyas
Robert J Weeks
Robert C Day
Helena E Magrath
Karina M O’Connor
Olga Kardailsky
Timothy A Hore
Mark B Hampton
Ian M Morison
author_facet Issam M Mayyas
Robert J Weeks
Robert C Day
Helena E Magrath
Karina M O’Connor
Olga Kardailsky
Timothy A Hore
Mark B Hampton
Ian M Morison
author_sort Issam M Mayyas
collection DOAJ
description Although the mechanism of DNA demethylating drugs has been understood for many years, the direct effect of these drugs on methylation of the complementary strands of DNA has not been formally demonstrated. By using hairpin-bisulphite sequencing, we describe the kinetics and pattern of DNA methylation following treatment of cells by the DNA methyltransferase 1 (DNMT1) inhibitor, decitabine. As expected, we demonstrate complete loss of methylation on the daughter strand following S-phase in selected densely methylated genes in synchronized Jurkat cells. Thereafter, cells showed a heterogeneous pattern of methylation reflecting replication of the unmethylated strand and restoration of methylation.
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spelling doaj.art-1c6526df08f64f94b446cbb0b8761e4c2023-09-21T13:09:25ZengTaylor & Francis GroupEpigenetics1559-22941559-23082021-11-0116111251125910.1080/15592294.2020.18611691861169Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylationIssam M Mayyas0Robert J Weeks1Robert C Day2Helena E Magrath3Karina M O’Connor4Olga Kardailsky5Timothy A Hore6Mark B Hampton7Ian M Morison8University of OtagoUniversity of OtagoUniversity of OtagoUniversity of OtagoUniversity of OtagoUniversity of OtagoUniversity of OtagoUniversity of OtagoUniversity of OtagoAlthough the mechanism of DNA demethylating drugs has been understood for many years, the direct effect of these drugs on methylation of the complementary strands of DNA has not been formally demonstrated. By using hairpin-bisulphite sequencing, we describe the kinetics and pattern of DNA methylation following treatment of cells by the DNA methyltransferase 1 (DNMT1) inhibitor, decitabine. As expected, we demonstrate complete loss of methylation on the daughter strand following S-phase in selected densely methylated genes in synchronized Jurkat cells. Thereafter, cells showed a heterogeneous pattern of methylation reflecting replication of the unmethylated strand and restoration of methylation.http://dx.doi.org/10.1080/15592294.2020.1861169demethylationdecitabinednmt1 inhibition
spellingShingle Issam M Mayyas
Robert J Weeks
Robert C Day
Helena E Magrath
Karina M O’Connor
Olga Kardailsky
Timothy A Hore
Mark B Hampton
Ian M Morison
Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation
Epigenetics
demethylation
decitabine
dnmt1 inhibition
title Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation
title_full Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation
title_fullStr Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation
title_full_unstemmed Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation
title_short Hairpin-bisulfite sequencing of cells exposed to decitabine documents the process of DNA demethylation
title_sort hairpin bisulfite sequencing of cells exposed to decitabine documents the process of dna demethylation
topic demethylation
decitabine
dnmt1 inhibition
url http://dx.doi.org/10.1080/15592294.2020.1861169
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