The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome

Abstract The placenta is a temporary organ that is essential for supporting mammalian embryo and fetal development. Understanding the molecular mechanisms underlying trophoblast differentiation and placental function may contribute to improving the diagnosis and treatment of obstetric complications....

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Main Authors: Sara Vasconcelos, Carla Caniçais, Susana M. Chuva de Sousa Lopes, C. Joana Marques, Sofia Dória
Format: Article
Language:English
Published: BMC 2023-04-01
Series:Clinical Epigenetics
Subjects:
Online Access:https://doi.org/10.1186/s13148-023-01483-z
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author Sara Vasconcelos
Carla Caniçais
Susana M. Chuva de Sousa Lopes
C. Joana Marques
Sofia Dória
author_facet Sara Vasconcelos
Carla Caniçais
Susana M. Chuva de Sousa Lopes
C. Joana Marques
Sofia Dória
author_sort Sara Vasconcelos
collection DOAJ
description Abstract The placenta is a temporary organ that is essential for supporting mammalian embryo and fetal development. Understanding the molecular mechanisms underlying trophoblast differentiation and placental function may contribute to improving the diagnosis and treatment of obstetric complications. Epigenetics plays a significant role in the regulation of gene expression, particularly at imprinted genes, which are fundamental in the control of placental development. The Ten-Eleven-Translocation enzymes are part of the epigenetic machinery, converting 5-methylcytosine (5mC) into 5-hydroxymethylcytosine (5hmC). DNA hydroxymethylation is thought to act as an intermediate in the DNA demethylation mechanism and potentially be a stable and functionally relevant epigenetic mark on its own. The role of DNA hydroxymethylation during differentiation and development of the placenta is not fully understood but increasing knowledge in this field will help to evaluate its potential role in pregnancy complications. This review focuses on DNA hydroxymethylation and its epigenetic regulators in human and mouse placental development and function. Additionally, we address 5hmC in the context of genomic imprinting mechanism and in pregnancy complications, such as intrauterine growth restriction, preeclampsia and pregnancy loss. The cumulative findings show that DNA hydroxymethylation might be important for the control of gene expression in the placenta and suggest a dynamic role in the differentiation of trophoblast cell types during gestation.
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spelling doaj.art-1a50f62be6fd4e2e80c790784fd548322023-04-30T11:19:15ZengBMCClinical Epigenetics1868-70832023-04-0115111110.1186/s13148-023-01483-zThe role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcomeSara Vasconcelos0Carla Caniçais1Susana M. Chuva de Sousa Lopes2C. Joana Marques3Sofia Dória4Genetics Unit, Department of Pathology, Faculty of Medicine, University of Porto (FMUP)Genetics Unit, Department of Pathology, Faculty of Medicine, University of Porto (FMUP)Department of Anatomy and Embryology, Leiden University Medical CenterGenetics Unit, Department of Pathology, Faculty of Medicine, University of Porto (FMUP)Genetics Unit, Department of Pathology, Faculty of Medicine, University of Porto (FMUP)Abstract The placenta is a temporary organ that is essential for supporting mammalian embryo and fetal development. Understanding the molecular mechanisms underlying trophoblast differentiation and placental function may contribute to improving the diagnosis and treatment of obstetric complications. Epigenetics plays a significant role in the regulation of gene expression, particularly at imprinted genes, which are fundamental in the control of placental development. The Ten-Eleven-Translocation enzymes are part of the epigenetic machinery, converting 5-methylcytosine (5mC) into 5-hydroxymethylcytosine (5hmC). DNA hydroxymethylation is thought to act as an intermediate in the DNA demethylation mechanism and potentially be a stable and functionally relevant epigenetic mark on its own. The role of DNA hydroxymethylation during differentiation and development of the placenta is not fully understood but increasing knowledge in this field will help to evaluate its potential role in pregnancy complications. This review focuses on DNA hydroxymethylation and its epigenetic regulators in human and mouse placental development and function. Additionally, we address 5hmC in the context of genomic imprinting mechanism and in pregnancy complications, such as intrauterine growth restriction, preeclampsia and pregnancy loss. The cumulative findings show that DNA hydroxymethylation might be important for the control of gene expression in the placenta and suggest a dynamic role in the differentiation of trophoblast cell types during gestation.https://doi.org/10.1186/s13148-023-01483-zEpigeneticsPlacentaTET enzymes5-hydroxymethylcytosineIntrauterine growth restrictionPreeclampsia
spellingShingle Sara Vasconcelos
Carla Caniçais
Susana M. Chuva de Sousa Lopes
C. Joana Marques
Sofia Dória
The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome
Clinical Epigenetics
Epigenetics
Placenta
TET enzymes
5-hydroxymethylcytosine
Intrauterine growth restriction
Preeclampsia
title The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome
title_full The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome
title_fullStr The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome
title_full_unstemmed The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome
title_short The role of DNA hydroxymethylation and TET enzymes in placental development and pregnancy outcome
title_sort role of dna hydroxymethylation and tet enzymes in placental development and pregnancy outcome
topic Epigenetics
Placenta
TET enzymes
5-hydroxymethylcytosine
Intrauterine growth restriction
Preeclampsia
url https://doi.org/10.1186/s13148-023-01483-z
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