This study aims at a comprehensive understanding of the genomic program activated during early-phase of collateral vessel growth in a rat model for cerebral adaptive arteriogenesis (3-VO). While arteriogenesis constitutes a promising therapeutic concept for cerebrovascular ischemia, genomic profiles essential for therapeutic target identification were analysed solely for collateral arteries of the heart and periphery. Despite challenging anatomical conditions of the brain the 3-VO model allows identification of differentially expressed genes during adaptive cerebral arteriogenesis by selective removal of the posterior cerebral artery (PCA).
Induction of cerebral arteriogenesis leads to early-phase expression of protease inhibitors in growing collaterals of the brain.
Age
View SamplesThe patterning of the facial midline involves early specification of neural crest cells to form skeletal tissues that support the upper jaw . In order to understand the molecular mechanisms involved we have taken advantage of a beak duplication model developed in the chicken embryo. Here we can induce the transformation of the side of the beak into a second midline that is easily identifiable by the formation of a supernumerary egg tooth. The phenotype is induced by implanting two microscopic beads, one soaked in retinoic acid and the other soaked in Noggin into the side of the head of the chicken embryo. Here we use microarrays to profile expression of maxillary mesenchyme 16h after placing the beads. A subset of genes were validated using in situ hybridization and QPCR. The aims of the study are to test the function of these genes using retroviral transgenesis, knockdown with morpholinos or expression of secreted proteins and their application to the embryo.
Identification and functional analysis of novel facial patterning genes in the duplicated beak chicken embryo.
Specimen part, Treatment
View SamplesPolycystic ovarian syndrome (PCOS) is an endocrine disorder of the reproductive and metabolic axis in women during the reproductive age. In this study, we used a rat model exhibiting reproductive and metabolic abnormalities similar to human PCOS to unravel the molecular mechanisms underlining this complex syndrome.
Polycystic ovarian syndrome is accompanied by repression of gene signatures associated with biosynthesis and metabolism of steroids, cholesterol and lipids.
Specimen part
View SamplesIn this dataset, we included expression data obtained from 30 resected human PDAC tumors, to examine what genes are differentially expressed in different cohorts that might lead to various outcomes
Identification of unique neoantigen qualities in long-term survivors of pancreatic cancer.
Specimen part
View SamplesWe used RNA-seq to monitor mRNA levels of all genes in response to hypoxia of wild-type yeast, S. cerevisiae (strain yMH914 with wildtype HAP1). To gain insights into how gene expression changes over time, cells were subjected to 100% nitrogen gas and collected after 0,5,10,30,60,120,180, and 240 minutes. Total RNA was extracted and mRNAs were enriched by polyA selection. The cDNA was prepared into a sequencing library, multiplexed and single-end sequenced by an Illumina HiSeq 2500 sequencer. After mapping with Tophat2, the number of reads per feature was calculated using HTSeq. Overall design: RNA-seq analysis of eight time points of a yeast strain grown in hypoxia. There are three biological replicates of the time course.
Time-Course Analysis of Gene Expression During the Saccharomyces cerevisiae Hypoxic Response.
Subject
View SamplesGenome-wide transcriptome analysis was performed to understand the expression pattern of transcriptomes in tolerant and susceptible subtropical maize genotypes under waterlogging stress condition.
Genome-wide expression of transcriptomes and their co-expression pattern in subtropical maize (Zea mays L.) under waterlogging stress.
Specimen part, Treatment, Time
View SamplesWe examined the patterns of gene expression of mouse thymic leukemias extracted from Mb1-CreDPB mice by RNA sequencing (RNA-seq). Our goal was to integrate RNA-seq data with whole-exome sequencing (WES) to determined secondary driver mutations of leukemogenesis in the absence of Spi-B and PU.1, Overall design: Thymic leukemias were isolated from diseased Mb1-CreDPB mice. In summary, thymuses were homogenized and red blood cells were removed with ACK buffer, washed with PBS and counted. The amount of 8 million cells were pelleted an RNA was extracted using Rneasy RNA Isolation Kit (Qiagen). RNA was quantified and the purity was checked by spectophotrometer. RNA was sent to subsequently sequencing procedures.
Driver mutations in Janus kinases in a mouse model of B-cell leukemia induced by deletion of PU.1 and Spi-B.
Disease, Disease stage, Cell line, Subject
View SamplesInnate and adaptive immune cells modulate heart failure pathogenesis during viral myocarditis, yet their identity and functions remain poorly defined. In this study we characterized the phenotype, life-cycle and function of different conventional dendritic cells (cDC) populations in the heart, with focus on the 2 major subsets (CD103+ and CD11b+), which differentially rely on local proliferation and precursor recruitment to maintain tissue residency. Following viral infection of the myocardium, cDCs accumulate in the heart coincident with monocyte infiltration and loss of resident reparative embryonic-derived cardiac macrophages. cDC depletion abrogates antigen-specific CD8+ T cell proliferative expansion, transforming subclinical cardiac injury to overt heart failure. Importantly, these effects are mediated by BATF3-dependent CD103+ cDCs. Collectively, our findings definitively identify resident cardiac cDC subsets, define their origins, and implicate an essential role for CD103+ cDCs in antigen-specific T cell responses during viral myocarditis.
A CD103<sup>+</sup> Conventional Dendritic Cell Surveillance System Prevents Development of Overt Heart Failure during Subclinical Viral Myocarditis.
Sex, Specimen part
View SamplesWe were interesed in defining the gene signautre of volar skin.
To Control Site-Specific Skin Gene Expression, Autocrine Mimics Paracrine Canonical Wnt Signaling and Is Activated Ectopically in Skin Disease.
No sample metadata fields
View SamplesAberrant placental gene expression associated with culture condition and/or deficiencies in transcriptome reprogramming are hypothesized to be the major cause of SCNT and IVP inefficiencies. Therefore, the main objective of this study was to invesitgate the dysregulated genes, molecular pathways and functional alteration in bovine placentas derived from SCNT and IVP pregnancies compared to their AI counterparts
Aberrant placenta gene expression pattern in bovine pregnancies established after transfer of cloned or in vitro produced embryos.
Specimen part, Treatment
View Samples