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Pregnancy changes expression in peripheral blood mononuclear cells of healthy donors

ABSTRACT: Background: pregnancy is associated with reduced activity of multiple sclerosis (MS). However, the biological mechanisms underlying this pregnancy-related decrease in disease activity are poorly understood. This data series contains the subset of data used to generate a healthy donors signature comparing female healthy specimens before pregnancy with respect to female healthy specimens at ninth month pregnancy.

ORGANISM(S): Homo sapiens

PROVIDER: GSE17409 | GEO | 2010/01/10

SECONDARY ACCESSION(S): PRJNA123613

REPOSITORIES: GEO

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Pregnancy changes expression in peripheral blood mononuclear cells of healthy donors

Project description:Background: pregnancy is associated with reduced activity of multiple sclerosis (MS). However, the biological mechanisms underlying this pregnancy-related decrease in disease activity are poorly understood. This data series contains the subset of data used to generate a healthy donors signature comparing female healthy specimens before pregnancy with respect to female healthy specimens at ninth month pregnancy. Subjects were followed in the outpatients clinic and blood was collected before pregnancy and at the following time points during pregnancy: first trimester (gestational age at sampling 12 weeks), second trimester (24 weeks), and third trimester (36 weeks). Before-pregnancy samples were obtained in a treatment-free period and after anticonceptional drug withdrawal. Peripheral blood mononuclear cells (PBMCs) obtained from 11 women (7 healthy donors before pregnancy and 4 healthy donors at 9th month pregnancy) were analyzed by oligonucleotide microarray technology.

2010-01-09 | E-GEOD-17409 | biostudies-arrayexpress

Pregnancy changes expression in peripheral blood mononuclear cells of Multiple Sclerosis (MS) patients

2010-01-10 | GSE17410 | GEO

Pregnancy changes expression in peripheral blood mononuclear cells of Multiple Sclerosis (MS) patients

Project description:Background: pregnancy is associated with reduced activity of multiple sclerosis (MS). However, the biological mechanisms underlying this pregnancy-related decrease in disease activity are poorly understood. This data series contains the subset of data used to generate a MS signature comparing female MS specimens before pregnancy with respect to female MS specimens at ninth month pregnancy. Subjects were followed in the outpatients clinic and blood was collected before pregnancy and at the following time points during pregnancy: first trimester (gestational age at sampling 12 weeks), second trimester (24 weeks), and third trimester (36 weeks). Before-pregnancy samples were obtained in a treatment-free period and after anticonceptional drug withdrawal. Peripheral blood mononuclear cells (PBMCs) obtained from 17 women (8 MS patients before pregnancy and 9 MS patients at 9th month pregnancy) were analyzed by oligonucleotide microarray technology.

2010-01-10 | E-GEOD-17410 | biostudies-arrayexpress

Transcription signature of Multiple Sclerosis in peripheral blood mononuclear cells.

2010-01-10 | GSE17393 | GEO

Transcription signature of Multiple Sclerosis in peripheral blood mononuclear cells.

Project description:Background: pregnancy is associated with reduced activity of multiple sclerosis (MS). However, the biological mechanisms underlying this pregnancy-related decrease in disease activity are poorly understood. This data series contains the subset of data used to generate a MS signature comparing female healthy specimens with respect to MS patients Subjects were followed in the outpatients clinic and blood was collected before pregnancy and at the following time points during pregnancy: first trimester (gestational age at sampling 12 weeks), second trimester (24 weeks), and third trimester (36 weeks). Before-pregnancy samples were obtained in a treatment-free period and after anticonceptional drug withdrawal. Peripheral blood mononuclear cells (PBMCs) obtained from 15 women (8 MS patients and 7 healthy controls) were analyzed by oligonucleotide microarray technology.

2010-01-10 | E-GEOD-17393 | biostudies-arrayexpress

The platelet releasate (PR) in human pregnancy

Project description:Healthy pregnancy is characterized by an increase in platelet activation and a decrease in the number of circulating platelets with gestation. Despite this recognised importance, proteomic studies investigating platelets in healthy pregnancy have not been performed. As platelet cargo can be altered in different conditions, we hypothesised that platelets may store a relevant and bespoke collection of molecules during pregnancy. To examine this, we performed comparative label-free quantitative proteomic profiling of platelet releasates from healthy pregnant and non-pregnant women using a tandem mass spectrometry approach. Of the 723 proteins identified, 69 PR proteins were found to be differentially released from platelets in pregnancy, including proteins only expressed during pregnancy such as pregnancy-specific glycoproteins and human placental lactogen.

2020-06-05 | PXD009361 | Pride

Cardiac Remodeling During Pregnancy With Metabolic Syndrome: Prologue of Pathological Remodeling

Project description:The heart undergoes physiological hypertrophy during pregnancy in healthy individuals. Metabolic syndrome (MetS) is now prevalent in women of child-bearing age and might add risks of adverse cardiovascular events during pregnancy. The present study asks if cardiac remodeling during pregnancy in obese individuals with MetS is abnormal and whether this predisposes them to a higher risk for cardiovascular disorders. The idea that MetS induces pathological cardiac remodeling during pregnancy was studied in a long-term (15 weeks) Western diet–feeding animal model that recapitulated features of human MetS. Pregnant female mice with Western diet (45% kcal fat)–induced MetS were compared with pregnant and nonpregnant females fed a control diet (10% kcal fat). Pregnant mice fed a Western diet had increased heart mass and exhibited key features of pathological hypertrophy, including fibrosis and upregulation of fetal genes associated with pathological hypertrophy. Hearts from pregnant animals with WD-induced MetS had a distinct gene expression profile that could underlie their pathological remodeling. Concurrently, pregnant female mice with MetS showed more severe cardiac hypertrophy and exacerbated cardiac dysfunction when challenged with angiotensin II/phenylephrine infusion after delivery. These results suggest that preexisting MetS could disrupt physiological hypertrophy during pregnancy to produce pathological cardiac remodeling that could predispose the heart to chronic disorders.

2023-07-13 | GSE237063 | GEO

miRNA seq of feto-placental arterial endothelial cells (pfEC) after normal pregnancy vs pregnancy complicated by gestational diabetes (GDM)

Project description:We report that the effect of GDM on gene expression differs between feto-placental endothelial cells of male vs female progeny, i.e. after pregnancy with a male or female offspring.

2019-01-01 | GSE104297 | GEO

Blood immunomonitoring uncovers pregnancy-induced immune programs and their dysregulation in lupus pregnancy destined for complications

Project description:Systemic lupus erythematosus carries increased risk of pregnancy complications. To understand the underlying molecular mechanisms, we characterized the blood transcriptome of lupus patients and healthy controls during pregnancy and postpartum and performed multicolor flow-cytometry in a subset. We also followed healthy women undergoing assisted reproductive technology, allowing for analysis around embryo implantation. A striking and sustained down modulation of two lupus-related signatures, interferon and plasma cells, takes place during healthy pregnancy. These changes appear immediately post embryo implantation and are mirrored in uncomplicated lupus pregnancies. Patients with preeclampsia displayed early upregulation of neutrophil signatures and expansion of immature neutrophils. Lupus pregnancies with fetal complications carried the highest interferon and plasma cell signatures as well as ICOS+ CD4+ T cell counts. Thus, healthy and uncomplicated lupus pregnancies exhibit early and sustained transcriptional modulation of lupus-related signatures, and failure to do so is associated with adverse outcomes.

2019-03-22 | GSE108497 | GEO

Impact of Microbiome on Hepatic Drug Processing Genes in Mice during Pregnancy

Project description:While microbiome and pregnancy are known to alter drug disposition, the interplay of the two physiological factors to impact expression and/or activity of drug processing genes (DPGs) has yet to be elucidated. This study aimed to investigate the effects of microbiome on host hepatic DPGs during pregnancy using conventional (CV) and germ-free (GF) mice. Four groups of female mice were used, namely CV non-pregnant (CVNP), GF non-pregnant (GFNP), CV pregnant (CVP), and GF pregnant (GFP) mice. Pregnant mice examined were on gestation day 15. Transcriptomic and targeted proteomics of hepatic DPGs were profiled using a multi-omics approach. Plasma bile acid and steroid hormone levels were quantified using LC-MS/MS. Cyp3a activities were measured by mouse liver microsome incubations. While the overall trend in pregnancy-induced changes in the expression or activity of hepatic DPGs in CV and GF mice was similar, significant differences in the magnitude of changes were observed. For certain genes, we noticed opposite effects of pregnancy on mRNA and protein expression of DPGs in both CV and GF mice. For instance, the mRNA levels of Cyp3a11, the murine homolog of human CYP3A4, were decreased by 1.7-fold and 3.3-fold by pregnancy in CV and GF mice, respectively. However, the protein levels of Cyp3a11 were increased similarly ~2-fold by pregnancy in both CV and GF mice. Yet, microsome incubations revealed a marked induction of Cyp3a activity by pregnancy that was >5-fold greater in CV mice than that in GF mice. Plasma bile acid and steroid hormone levels were also significantly altered by microbiome and pregnancy, respectively, which may contribute to the differential effects of pregnancy in CV and GF mice. This is the first study to show that microbiome can alter hepatic DPGs in pregnancy.

2020-08-26 | GSE143391 | GEO

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