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RNA-Sequencing analysis of differential gene transcription profiles induced by the prenatal/maternal broccoli sprout (BSp) diet

ABSTRACT: Purpose: We tested global gene transcriptome changes by RNA-sequencing analysis in the offspring breast tumors of SV40 transgenic mice to further identify key epigenetic-controlled genes in regulation of the prenatal/maternal BSp diet-mediated early breast cancer prevention. Method: Mouse offspring mammary tumor mRNA from control and maternal BSp treatment were generated by deep sequencing, in duplicate or triplicate, using Illumina NextSeq500 platform (GPL19057). The sequence reads that passed quality filters were analyzed. We utilized the R/Bioconductor package DESeq to evaluate differential gene expression for sequence count data by the use of negative binomial distributio. qRT–PCR validation was performed using TaqMan and SYBR Green assays. Conclusions: Our data showed differential transcriptome distribution in the breast tumors of mouse offspring between the control and prenatal/maternal BSp treatment groups.

ORGANISM(S): Mus musculus

PROVIDER: GSE113900 | GEO | 2018/05/02

REPOSITORIES: GEO

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Integrative genome-wide analysis in mouse mammary tumors in response to maternal long-term genistein (LT-GE) treatment

Project description:We tested global gene transcriptome changes by RNA-sequencing analysis and genome-wide methylation profiles by reduced representation bisulfite sequencing (RRBS) analysis in the offspring mammary tumors of C3(1)-SV40 Tag (SV40) transgenic mice to further identify key epigenetic-controlled genes in regulation of maternal GE diet-mediated early breast cancer prevention.

2022-01-24 | GSE194163 | GEO

RNA-Sequencing analysis of differential gene transcription profiles induced by the prenatal/maternal broccoli sprout (BSp) diet

Project description:RNA-Sequencing analysis of differential gene transcription profiles induced by the prenatal/maternal broccoli sprout (BSp) diet

| PRJNA454438 | ENA

Life history shapes variation in egg composition in a wild passerine

Project description:Maternal investment directly shapes early developmental conditions and therefore has long-term fitness consequences for the offspring. In oviparous species prenatal maternal investment is fixed at the time of laying. To ensure the best survival chances for most of their offspring, females must equip their eggs with the resources required to perform well under various circumstances, yet the actual mechanisms remain unknown. Here we describe the blue tit egg albumen and yolk proteome and evaluate its potential to mediate maternal effects. We show that variation in egg composition (proteins, lipids, carotenoids) primarily depends on laying order, female age and paternity (within- versus extra-pair) and that the investment in the egg proteome is functionally biased among eggs. Our results suggest that maternal effects on egg composition result from both passive and active (partly compensatory) mechanisms, and that the between- and within-clutch variation in egg composition creates diverse biochemical environments for embryonic development.

2019-01-07 | PXD009822 | Pride

Genome-wide analysis of hypothalamic gene expression in prenatally undernourished male rat offspring under high fat diet

Project description:Based on the developmental origin of health of disease hypothesis, we previously showed that prenatal 70% maternal food restriction (FR30) predisposes the offspring to development of pathologies in adulthood. In the present study, we focused on the hypothalamus gene expression profile of standard and high fat (HF)-fed FR30 adult offspring. Total RNA obtained from isolated hypothalami of control standard and high fat-fed adult offspring compared to prenatally undernourished (FR30) counterparts.

2013-01-17 | E-GEOD-43547 | biostudies-arrayexpress

Maternal antioxidant treatment prevents behavioural and neurological changes in offspring exposed to prenatal social stress [RNA-seq]

Project description:Maternal exposure to social stress during pregnancy is associated with an increased risk of psychiatric disorders in the offspring in later life. How the effects of maternal social stress are transmitted to the developing foetus is unclear. Using a rat model of maternal social stress during pregnancy, we explored the mechanisms by which maternal stress is conveyed to the foetus and the potential for targeted treatment to prevent disease in the offspring. Maternal stress induced oxidative stress in the placenta, but not in the foetal brain, which was prevented by a single administration of nanoparticle-bound antioxidant prior to the stress exposure. Moreover, this antioxidant treatment prevented prenatal stress-induced anxiety-like behaviour in juvenile male offspring, along with neurological and gene expression changes in the offspring brain. In vitro, placental conditioned medium or foetal plasma from stressed pregnancies caused changes to cultured cortical neurons, similar to those observed in the brains of juvenile offspring exposed to prenatal stress, and were found to contain altered levels of extracellular microRNAs but not corticosterone. The present study highlights the crucial role of the placenta, and molecules secreted from the placenta, in foetal brain development and provides evidence of the potential for treatment that can prevent maternal stress-induced foetal programming of neurological disease.

2024-04-22 | GSE131040 | GEO

Transcription profiling of mouse offspring of crosses between hypercholesterolemic and normocholesterolemic parents LUMC-HKG-ApoE-Atherosclerosis

Project description:Enhanced prenatal fatty streak formation in human fetuses has been associated with maternal hypercholesterolemia. However, the possible roles of maternal genetic background and in utero environment on development of atherosclerosis in adult life have not been unraveled. We generated genetically identical heterozygous apoE-deficient mice offspring with a different maternal background to study the intrauterine effect of maternal genotype and associated hypercholesterolemia on the developing vascular system. As read out for increased atherosclerosis development in adult life, a constrictive collar was placed around the carotid artery to induce lesion formation. A significant increase in endothelial cell activation and damage was detected in the carotid arteries of heterozygous apoE-deficient fetuses with apoE-deficient mothers compared with offspring from wild type mothers, but no fatty streak formation was observed. Postnatally, all carotid arteries revealed normal morphology. In adult offspring with maternal apoE-deficiency, the constrictive collar resulted in severe lesion (9/10) development compared with no to only minor lesions (2/10) in offspring of wild type mothers. Microarray analysis showed no effect of maternal apoE-deficiency on gene expression in adult offspring. We conclude that maternal apoE-deficiency not only affects fetal arteries, but also increases the susceptibility for development of collar-induced atherosclerosis in adult life. Experiment Overall Design: Crossing of hypercholesterolemic female with normocholesterolemic male and vice versa, determination of susceptabilioty to atherosclerosis in offspring

2008-06-14 | E-GEOD-6134 | biostudies-arrayexpress

Genome-wide analysis of liver gene expression in prenatally undernourished male rat offspring under high-fat diet

2019-07-12 | GSE134149 | GEO

Genome-wide analysis of hypothalamic gene expression in prenatally undernourished male rat offspring under high fat diet

2013-01-17 | GSE43547 | GEO

Genome-wide mRNA expression and methylation patterns of neural genes in response to prenatal hormones

Project description:We explored the molecular mechanisms that mediate changes in neural gene expression (i.e., hypothalamus and nucleus taenia of the amygdala) and aggression in male and female zebra finches (Taeniopygia guttata) exposed to prenatal testosterone. We used egg injections of testosterone or the vehicle to mimic maternal hormones, which are transferred to offspring during prenatal development. Many researchers have postulated that prenatal maternal hormones can generate adaptive phenotypic plasticity; however, no study has determined the mechanism facilitating these long-term changes. Thus, we analyzed neural tissues from behaviorally relevant brain regions for changes in gene expression via RNA-Seq and methylation via Methyl-Seq resulting from the prenatal hormone treatment.

2019-03-01 | GSE100396 | GEO

DNA methylation signatures triggered by prenatal maternal stress exposure to a natural disaster: Project Ice Storm

Project description:Background: Prenatal maternal stress (PNMS) predicts a wide variety of behavioral and physical outcomes in the offspring. Although epigenetic processes may be responsible for PNMS effects, human research is hampered by the lack of experimental methods that parallel controlled animal studies. Disasters, however, provide natural experiments that can provide models of prenatal stress. Methods: Five months after the 1998 Quebec ice storm we recruited women who had been pregnant during the disaster and assessed their degrees of objective hardship and subjective distress. Thirteen years later, we investigated DNA methylation profiling in T cells obtained from 36 of the children, and compared selected results with those from saliva samples obtained from the same children at age 8. Results: Prenatal maternal objective hardship was correlated with DNA methylation levels in 1675 CGs affiliated with 957 genes predominantly related to immune function; maternal subjective distress was uncorrelated. DNA methylation changes in SCG5 and LTA, both highly correlated with maternal objective stress, were comparable in T cells, peripheral blood mononuclear cells (PBMCs) and saliva cells. Conclusions: These data provide first evidence in humans supporting the conclusion that PNMS results in a lasting, broad, and functionally organized DNA methylation signature in several tissues in offspring. By using a natural disaster model, we can infer that the epigenetic effects found in Project Ice Storm are due to objective levels of hardship experienced by the pregnant woman rather than to her level of sustained distress. Bisulphite converted DNA from the 34 samples were hybridised to the Illumina Infinium 450k Human Methylation Beadchip v1.2

2015-08-26 | E-GEOD-72354 | biostudies-arrayexpress

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