Preimplantation Genetic Diagnosis is commonly offered to couples undergoing assisted reproduction to select healthy embryos to be transferred in utero. The procedure involves the removal of one blastomere from cleaving embryos (known as Blastomere Biopsy – BB) and in vitro culture of biopsied embryos followed by their transfer in utero once the result of PGD confirm their health status. We and others previously reported that male offspring in mice, developed from embryos subjected to BB, is characterized by increased body weight and size. Here we hypothesized that the observed phenotype is due to dysfunction of a key organ in the control/maintenance of metabolic homeostasis: the liver. To this aim, transcriptome analysis was performed on liver tissues collected from 4-months-old mice developed after BB and from not-biopsied control embryos (CTR).
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Sex, Age, Specimen part, Disease, Cell line, Treatment
View SamplesGibberellin mobilizes distinct DELLA-dependent transcriptomes to regulate seed germination and floral development in Arabidopsis
Gibberellin mobilizes distinct DELLA-dependent transcriptomes to regulate seed germination and floral development in Arabidopsis.
Specimen part
View SamplesWe evaluated how different microbial species commonly associated with laboratory-reared Drosophila melanogaster impact host biology at the level of gene expression in the dissected adult gut or the entire adult organism. We observed that guts from gnotobiotic animals associated from the embryonic stage with either zero, one or three bacterial species demonstrated indistinguishable transcriptional profiles. Additionally, we found that the gut transcriptional profiles of animals reared in the presence of the yeast Saccharomyces cerevisiae alone or in combination with bacteria could recapitulate those of conventionally-reared animals. In contrast, we found whole body transcriptional profiles of conventionally-reared animals were distinct from all of the gnotobiotic treatments tested. Our data suggest that adult flies are insensitive to the ingestion of different bacterial species but that prior to adulthood, different microbes impact the host in ways that lead to global transcriptional differences observable across the whole adult body.
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Sex, Age, Specimen part, Disease, Cell line, Treatment
View SamplesWe examined skin biopsies from a diverse cohort of 23 SSc patients (including lesional forearm and non-lesional back samples) by RNA-seq. Metagenomic filtering and annotation was performed using the Integrated Metagenomic Sequencing Analysis (IMSA). Associations between microbiome composition and gene expression were analyzed using single-sample gene set enrichment analysis (ssGSEA).
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Sex, Age, Specimen part
View SamplesGlobal gene expression analysis of grapevine cv. Pinot Noir berries during development and ripening. Time-course comparison of samples collected at three developmental stages (stages 33, 34 and 36 according to the modified E-L system, ref: Coombe BG, Aust J Grape Wine Res 1995, 1: 104-110) during three seasons (2003, 2005 and 2006).
Genome-wide transcriptional analysis of grapevine berry ripening reveals a set of genes similarly modulated during three seasons and the occurrence of an oxidative burst at vèraison.
Age, Specimen part, Time
View SamplesEstrogens have been shown to elicit anti-cancer effects against estrogen receptor alpha (ER)-positive breast cancer. We sought to determine the underlying mechanism of therapeutic response. Response to estrogen treatment was assessed in ER+ breast cancer models of anti-estrogen resistant disease: WHIM16 patient-derived xenografts, C7-2-HI and C4-HI murine mammary adenocarcinomas, and long-term estrogen-deprived MCF-7 cells.
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Sex, Age, Specimen part
View SamplesMicroenvironmental secreted factor screening revealed cytokines that modulate drug sensitivity in ER+ breast cancer cells. BMP4 was a top hit that is not normally expressed in ER+ breast cancer, and was found to enhance efficacy of anti-estrogens and CDK4/6i in anti-estrogen-sensitive and -resistant ER+ breast cancer cells. The anti-cancer effects of BMP4 were mediated by ALK3 and canonical BMP pathway signaling, leading to downstream p21 induction and cell cycle arrest. The clinical relevance of this phenotype was confirmed in analyses of 3 cohorts of patients with ER+ breast cancer, highlighting BMP4 pathway activation as a potential therapeutic opportunity in ER+ breast cancer.
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Sex, Age, Specimen part
View SamplesRNA-Seq experiment was done to compare cngc16 (a heat-sensitive mutant harboring a knockout of cyclic nucleotide-gated channel 16) and wild type pollen for differences in their response to a temperature stress condition. Transcriptomes were analyzed from mature pollen grains harvested at midday from plants grown under normal (control) conditions or a heat stress regime. For the stress condition, plants were grown under a diurnal cycle of hot and cold temperatures and pollen were harvested at the end of a HS period that peaked at 40 degrees Celsius.
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Specimen part, Treatment
View SamplesGene expression activity is heterogeneous in a population of isogenic cells. Identifying the molecular basis of this variability will improve our understanding of phenomena like tumor resistance to drugs, virus infection or cell fate choice. The complexity of the molecular steps and machines involved in transcription and translation could introduce sources of randomness at many levels, but a common constraint to most of these processes is its energy dependence. In eukaryotic cells most of this energy is provided by mitochondria. A clonal population of cells may show a large variability in the number and functionality of mitochondria. Cell-to-cell differences in mitochondrial content, probably originated by asymmetric segregation at cell division, contribute to heterogeneity in gene products.
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Sex, Specimen part, Cell line, Treatment
View SamplesExosomes are 40~120 nm diameter vesicles of endocytic origin released by most cells and important in mediating cell-cell communication. As mRNA and noncoding RNA are two main functional RNA molecules in post transcription level and involves in many bio-activities including cancer progression and metastasis, it is important to understand the coding and noncoding genes contained within exosomes released by tumour cells. This study focused on the protein coding and noncoding genes enriched in two subtypes of exosomes (A33-enriched exosomes, A33-Exos and EpCAM-enriched exosomes, EpCAM-Exos) released by human colon cancer LIM1863 cell line. With high throughput sequencing technology and bioinformatics analyses, we demonstrate 350 protein coding genes (PCGs) and 222 noncoding genes (NCGs) are commonly enriched; 56 PCGs and 202 NCGs were specifically enriched in A33-Exos and 276 PCGs and 253 NCGs were enriched unique to EpCAM-Exos. A salient finding was the significant enrichment of TPT1, ribosomal protein genes and GAS5, a tumour noncoding gene, in exosomes. We further demonstrate differentially seven expressed genes (SCARB1, SCD, TPT1, EETF1G, BCL7C, RPS3, and RAB13) by qRT-PCR. Importantly, we correlated these findings with several matched tissue-derived tumour-normal samples showed TPT1 and ribosomal protein genes were up regulated in human tumour samples. Our findings provide a new insight of functional RNA molecules in exosomes and new select non-invasive biomarker candidates for colon cancer diagnosis and prognosis.
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