RNA-seq of mid-gestation mouse mammary tissues from E12.5 stage organs
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB27170 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR2617190_1.fastq.gz | Fastqsanger.gz | |||
| ERR2617190_2.fastq.gz | Fastqsanger.gz | |||
| ERR2617200_1.fastq.gz | Fastqsanger.gz | |||
| ERR2617200_2.fastq.gz | Fastqsanger.gz | |||
| ERR2617191_1.fastq.gz | Fastqsanger.gz |
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Project description:RNA sequencing of embryonic mammary tissue from mid-gestation E12.5 mouse mammary glands, using SMARTer amplification. Mammary epithelium, mammary mesenchyme, ventral surface epithelium were micro dissected from E12.5-stage C57BL/6 mouse embryos.
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Project description:Background: Maternal iron deficiency (ID) is associated with poor pregnancy and fetal outcomes. The effect is thought to be mediated by the placenta but there is no comprehensive assessment of placental response to maternal ID. Additionally, whether the influence of maternal ID on the placenta differs by fetal sex is unknown. Objectives: Our primary aim was to identify gene and protein signatures of ID mouse placentas at mid-gestation. A secondary objective was to profile the expression of iron genes in mouse placentas across gestation. Methods: We used a real-time PCR based array to determine the mRNA expression of all known iron genes in mouse placentas at embryonic day (E) 12.5, E14.5, E16.5, and E19.5 (n=3 placentas/time point). To determine the effect of maternal ID, we performed RNA sequencing and proteomics in male and female placentas from ID and iron adequate mice at E12.5 (n=8 dams/diet). Results: In female placentas, six genes including transferrin receptor (Tfrc) and solute carrier family 11 member 2 were significantly changed by maternal ID. An additional 154 genes were altered in male ID placentas. Proteomic analysis quantified 7662 proteins in the placenta. Proteins translated from iron responsive element (IRE) containing mRNAs were altered in abundance; ferritin and ferroportin 1 decreased while TFRC increased in ID placenta. Less than 4% of the significantly altered genes in ID placentas occurred both at the transcriptional and translational levels. Conclusions: Our data demonstrate that the impact of maternal ID on placental gene expression in mice is limited in scope and magnitude at mid-gestation. We provide strong evidence for IRE-based transcriptional and translational coordination of iron gene expression in the mouse placenta. Finally, we discover sexually dimorphic effects of maternal ID on placental gene expression, with more genes and pathways altered in male compared with female mouse placentas.
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