This SuperSeries is composed of the SubSeries listed below.
The epigenetic processes of meiosis in male mice are broadly affected by the widely used herbicide atrazine.
Specimen part
View SamplesEnvironmental factors such as pesticides are widely used in the agriculture of many countries and their negative impact on human health and fertility are largely unknown. There is a rapidly growing body of evidence that human reproductive health is negatively affected by the various environmental factors, including life style and exposure to the chemical compounds such as certain drugs and pesticides. Sexually reproducing organisms produce haploid gametes via a process called meiosis. Meiosis is dependent on androgen action within the testis. Pesticides and herbicides interfere with natural hormones system and are considered to be endocrine disruptors. We hypothesize that atrazine (ATZ), a herbicide used globally, adversely affects meiosis. To test this idea we used the mouse as a model organism. Mice were treated three weeks with atrazine in drinking water at concentration of 100 mg/l. To assess the molecular mechanisms of effects of ATZ on spermatogenesis we performed comparative analysis of genes expression by using Affymetrix microarray by using three biological testis samples from ATZ treated and control mice. Using a fold-change cutoff value of 1.5 and p value <0.05 (statistical Limma test (linear models test for microarray data)), we identified 51 genes that were differentially expressed in ATZ treated mice.
The epigenetic processes of meiosis in male mice are broadly affected by the widely used herbicide atrazine.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Cell-Cycle-Dependent Reconfiguration of the DNA Methylome during Terminal Differentiation of Human B Cells into Plasma Cells.
Specimen part, Subject
View SamplesMolecular mechanisms underlying terminal differentiation of B-cells into plasma cells are major determinants of adaptive immunity but remain only partially understood. Here, we present the transcriptional and epigenomic landscapes of cell subsets arising from activation of human naive B-cells and differentiation into plasmablasts. Cell proliferation of activated B cells was linked to a slight decrease in DNA methylation levels but followed by a committal step in which an S-phase-synchronized differentiation switch was associated with an extensive DNA demethylation and local acquisition of 5-hydroxymethylcytosine at enhancers and genes related to plasma cell identity.
Cell-Cycle-Dependent Reconfiguration of the DNA Methylome during Terminal Differentiation of Human B Cells into Plasma Cells.
No sample metadata fields
View SamplesSkeletal muscle regeneration is a highly dynamics process. The study aims at investigating gene expression by endothelial cells and satellite/myogenic cells during this process, in mouse, after a toxic injury
Coupling between Myogenesis and Angiogenesis during Skeletal Muscle Regeneration Is Stimulated by Restorative Macrophages.
Specimen part, Time
View SamplesThe aim of this study was to identify new biomarkers and to investigate pathways involved in the progression of human carotid atheroma.
Identification of two genes potentially associated in iron-heme homeostasis in human carotid plaque using microarray analysis.
Specimen part, Disease, Disease stage, Subject
View SamplesClassical CD16- versus intermediate/non-classical CD16+ monocytes differ in their homing potential and immunological functions; but whether they differentiate into dendritic cells (DC) with distinct contributions to immunity against bacterial/viral pathogens remains poorly investigated. Here, we employed a systems biology approach to identify differences between CD16+ and CD16- monocyte-derived DC (MDDC) with potential clinical relevance
CD16<sup>+</sup> monocytes give rise to CD103<sup>+</sup>RALDH2<sup>+</sup>TCF4<sup>+</sup> dendritic cells with unique transcriptional and immunological features.
Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling.
Age, Specimen part, Treatment
View SamplesAs sessile organisms plants developed a veriety of adaptive responses to the ever changing environment. One of these responses is the shade avoidance syndrome which is composed of different responses like elongation growth, hyponastic leafs or early flowering to shade (low R/FR). Phytochrcome Interacting Factor 4 and 5 are bHLH transcription factors reported to activate gene expression upon perception of low R/FR. Using this miroarray experiment we identified new genes regulated by PIF4 and PIF5 in response to shade and investigated their genome wide role.
Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling.
Age, Specimen part, Treatment
View SamplesLung cancer is a highly malignant tumor and the majority of cancer-related deaths are due to metastasis. The tumor microenvironment (TME) plays a fundamental role in the metastatic spread of tumor cells. Among other stromal cells, mesenchymal stem cells (MSCs) are known to be present within the TME and to be involved in cancer progression. However the majority of previous studies have been performed on bone marrow-derived MSCs. To investigate the role of the TME on the pulmonary MSC phenotype, we compared the expression profile of paired MSCs isolated from lung tumor (T-) and normal adjacent tissues (N-) from lung carcinoma patients.
Reciprocal modulation of mesenchymal stem cells and tumor cells promotes lung cancer metastasis.
Specimen part, Disease stage, Subject
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