Fetal de novo mutations and preterm birth.

Preterm birth (PTB) affects ~12% of pregnancies in the US. Despite its high mortality and morbidity, the molecular etiology underlying PTB has been unclear. Numerous studies have been devoted to identifying genetic factors in maternal and fetal genomes, but so far few genomic loci have been associat...

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Main Authors: Jingjing Li, John Oehlert, Michael Snyder, David K Stevenson, Gary M Shaw
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-04-01
Series:PLoS Genetics
Online Access:http://europepmc.org/articles/PMC5384656?pdf=render
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author Jingjing Li
John Oehlert
Michael Snyder
David K Stevenson
Gary M Shaw
author_facet Jingjing Li
John Oehlert
Michael Snyder
David K Stevenson
Gary M Shaw
author_sort Jingjing Li
collection DOAJ
description Preterm birth (PTB) affects ~12% of pregnancies in the US. Despite its high mortality and morbidity, the molecular etiology underlying PTB has been unclear. Numerous studies have been devoted to identifying genetic factors in maternal and fetal genomes, but so far few genomic loci have been associated with PTB. By analyzing whole-genome sequencing data from 816 trio families, for the first time, we observed the role of fetal de novo mutations in PTB. We observed a significant increase in de novo mutation burden in PTB fetal genomes. Our genomic analyses further revealed that affected genes by PTB de novo mutations were dosage sensitive, intolerant to genomic deletions, and their mouse orthologs were likely developmentally essential. These genes were significantly involved in early fetal brain development, which was further supported by our analysis of copy number variants identified from an independent PTB cohort. Our study indicates a new mechanism in PTB occurrence independently contributed from fetal genomes, and thus opens a new avenue for future PTB research.
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spelling doaj.art-9eaadc0648a845fcbb41988f8d02714e2022-12-21T19:28:55ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042017-04-01134e100668910.1371/journal.pgen.1006689Fetal de novo mutations and preterm birth.Jingjing LiJohn OehlertMichael SnyderDavid K StevensonGary M ShawPreterm birth (PTB) affects ~12% of pregnancies in the US. Despite its high mortality and morbidity, the molecular etiology underlying PTB has been unclear. Numerous studies have been devoted to identifying genetic factors in maternal and fetal genomes, but so far few genomic loci have been associated with PTB. By analyzing whole-genome sequencing data from 816 trio families, for the first time, we observed the role of fetal de novo mutations in PTB. We observed a significant increase in de novo mutation burden in PTB fetal genomes. Our genomic analyses further revealed that affected genes by PTB de novo mutations were dosage sensitive, intolerant to genomic deletions, and their mouse orthologs were likely developmentally essential. These genes were significantly involved in early fetal brain development, which was further supported by our analysis of copy number variants identified from an independent PTB cohort. Our study indicates a new mechanism in PTB occurrence independently contributed from fetal genomes, and thus opens a new avenue for future PTB research.http://europepmc.org/articles/PMC5384656?pdf=render
spellingShingle Jingjing Li
John Oehlert
Michael Snyder
David K Stevenson
Gary M Shaw
Fetal de novo mutations and preterm birth.
PLoS Genetics
title Fetal de novo mutations and preterm birth.
title_full Fetal de novo mutations and preterm birth.
title_fullStr Fetal de novo mutations and preterm birth.
title_full_unstemmed Fetal de novo mutations and preterm birth.
title_short Fetal de novo mutations and preterm birth.
title_sort fetal de novo mutations and preterm birth
url http://europepmc.org/articles/PMC5384656?pdf=render
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AT johnoehlert fetaldenovomutationsandpretermbirth
AT michaelsnyder fetaldenovomutationsandpretermbirth
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AT garymshaw fetaldenovomutationsandpretermbirth