Abstract
While a genetic component of preterm birth (PTB) has long been recognized and recently mapped by genome-wide association studies (GWASs), the molecular determinants underlying PTB remain elusive. This stems in part from an incomplete availability of functional genomic annotations in human cell types relevant to pregnancy and PTB. We generated transcriptome (RNA-seq), epigenome (ChIP-seq of H3K27ac, H3K4me1, and H3K4me3 histone modifications), open chromatin (ATAC-seq), and chromatin interaction (promoter capture Hi-C) annotations of cultured primary decidua-derived mesenchymal stromal/stem cells and in vitro differentiated decidual stromal cells and developed a computational framework to integrate these functional annotations with results from a GWAS of gestational duration in 56,384 women. Using these resources, we uncovered additional loci associated with gestational duration and target genes of associated loci. Our strategy illustrates how functional annotations in pregnancy-relevant cell types aid in the experimental follow-up of GWAS for PTB and, likely, other pregnancy-related conditions.
Original language | English (US) |
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Article number | eabc8696 |
Journal | Science Advances |
Volume | 6 |
Issue number | 49 |
DOIs | |
State | Published - Dec 2 2020 |
Funding
We acknowledge C. Billstrand, K. Naughton, M. Soliai, and R. Nicolae for assistance with sample processing; R. Nasim, S. Chinthala, and R. Loth for help with sample collection; R. Minhas for help with clinical questions and data entry; and B. Furner and S. Choi for designing and maintaining the sample tracking database. ALSPAC GWAS data: We are grateful to all the families who took part in this study, the midwives for help in recruiting them, and the whole ALSPAC team, which includes interviewers, computer and laboratory technicians, clerical workers, research scientists, volunteers, managers, receptionists, and nurses The UChicago-Northwestern-Duke Prematurity Research Center was supported by a research grant from the March of Dimes to C.O., M.A.N., G.E.C., and J.K. This work was also supported by the March of Dimes Prematurity Research Center Ohio Collaborative and Bill and Melinda Gates Foundation (OPP1113966) to L.J.M. and G.Z. The UK Medical Research Council and Wellcome (grant reference 217065/Z/19/Z) and the University of Bristol provide core support for ALSPAC. A comprehensive list of grants funding is available on the ALSPAC website (http://www.bristol.ac.uk/alspac/external/documents/grantacknowledgements.pdf). This research was specifically funded by Wellcome Trust WT088806 (Maternal genotype). This work was partially funded from grants from the National Institutes of Health, R01HL129735 (C.O.), 1R01MH110531 (X.H.), R01HL128075, R01119577, and R01DK114661 (M.A.N.)
ASJC Scopus subject areas
- General