PMID- 28604758 OWN - NLM STAT- MEDLINE DCOM- 20180723 LR - 20181113 IS - 1530-0447 (Electronic) IS - 0031-3998 (Linking) VI - 82 IP - 4 DP - 2017 Oct TI - Intrauterine growth retardation-associated syncytin b hypermethylation in maternal rat blood revealed by DNA methylation array analysis. PG - 704-711 LID - 10.1038/pr.2017.137 [doi] AB - BackgroundEmerging evidence suggests that DNA methylation in maternal blood is a promising target for intrauterine growth retardation (IUGR) screening, a common developmental toxicity. Here, we aimed to screen out IUGR-related DNA methylation status in maternal blood via high-throughput profiling.MethodsPregnant Wistar rats were subcutaneously administered nicotine (1 mg/kg) twice per day from gestational day (GD) 11 to GD20 to establish the IUGR model. MeDIP array assays and the following GO analysis were used to evaluate DNA methylation status in maternal blood. One placental development-associated gene was selected for further confirmation.ResultsGenes regulating the development of multiple organs and major body systems had changed DNA methylation frequencies in the maternal blood of IUGR rats. Placental development, which can affect the development of multiple fetal organs and induce IUGR, is a hypermethylated cluster consisting of four significantly changed genes, including syncytin b (Synb), Lrrc15, Met, and Tex19.1. With the most significant change, Synb hypermethylation in maternal blood was confirmed by bisulfite-sequencing PCR (BSP). Moreover, decreased Synb expression and histological changes were observed in IUGR placentae.ConclusionThe IUGR-associated DNA methylation profile in maternal blood, such as placenta-related Synb hypermethylation, provides evidence for further studies on possible IUGR biomarkers. FAU - Wu, Dong-Mei AU - Wu DM AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Huibei, China. FAU - Yan, You-E AU - Yan YE AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Huibei, China. FAU - Ma, Liang-Peng AU - Ma LP AD - Department of Pharmacy, Wuhan First Hospital, Wuhan, Hubei, China. FAU - Liu, Han-Xiao AU - Liu HX AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Huibei, China. FAU - Qu, Wen AU - Qu W AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Huibei, China. FAU - Ping, Jie AU - Ping J AD - Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Huibei, China. LA - eng PT - Journal Article DEP - 20170705 PL - United States TA - Pediatr Res JT - Pediatric research JID - 0100714 RN - 0 (Pregnancy Proteins) RN - 0 (Synb protein, rat) RN - 6M3C89ZY6R (Nicotine) SB - IM MH - Animals MH - *DNA Methylation MH - Disease Models, Animal MH - *Epigenesis, Genetic MH - Female MH - Fetal Growth Retardation/blood/chemically induced/*genetics MH - Gene Expression Regulation, Developmental MH - High-Throughput Nucleotide Sequencing MH - Nicotine MH - *Oligonucleotide Array Sequence Analysis MH - Placenta/metabolism MH - Pregnancy MH - Pregnancy Proteins/blood/*genetics MH - Promoter Regions, Genetic MH - Rats, Wistar EDAT- 2017/06/13 06:00 MHDA- 2018/07/24 06:00 CRDT- 2017/06/13 06:00 PHST- 2016/10/01 00:00 [received] PHST- 2017/05/28 00:00 [accepted] PHST- 2017/06/13 06:00 [pubmed] PHST- 2018/07/24 06:00 [medline] PHST- 2017/06/13 06:00 [entrez] AID - pr2017137 [pii] AID - 10.1038/pr.2017.137 [doi] PST - ppublish SO - Pediatr Res. 2017 Oct;82(4):704-711. doi: 10.1038/pr.2017.137. Epub 2017 Jul 5.