Compares shFOXO4 vs. Control in LNCaP grown in culture, or in nude mice as primary orthotopic tumors or lymph node metastases
A genome-wide RNAi screen identifies FOXO4 as a metastasis-suppressor through counteracting PI3K/AKT signal pathway in prostate cancer.
Specimen part
View SamplesThe nuclear exosome performs critical functions in non-coding RNA processing, and in diverse surveillance functions including the quality control of mRNP formation, and in the removal of pervasive transcripts. Most non-coding RNAs and pervasive nascent transcripts are targeted by the Nrd1p-Nab3p-Sen1p (NNS) complex to terminate Pol II transcription coupled to nuclear exosome degradation or 3´-end trimming. Prior to nuclear exosome activity, the Trf4p-Air2p-Mtr4p polyadenylation complex adds an oligo-A tail to exosome substrates. Inactivating exosome activity stabilizes and lengthens these A-tails. We utilized high-throughput 3´-end poly(A)+ sequencing to identify at nucleotide resolution the 3´ ends targeted by the nuclear exosome, and determine the sites of NNS-dependent termination genome-wide. Overall design: 3´-end mapping of wild-type and various nuclear exosome mutant strains, either using gene knockouts or the anchor away system to conditionally deplete FRB-tagged proteins from the nucleus
Common genomic elements promote transcriptional and DNA replication roadblocks.
Subject
View SamplesWe report the effects of Rapamycin treatment on the transcriptome of normal human dermal fibroblasts isolated from foreskin (designated 2DD). We sequenced mRNA from 2 replicates of proliferative (PRO) quiescent (QUI, serum starved) or treated with 500nM Rapamycin for 5 days (RAP). Comparative analyses with PRO transcripts a baseline indicate that genes that changed expression from Rapamycin treated fibroblasts are significantly different from those of quiescence cells. Rapamycin treated cells showed a significant enrichment for cytokines from the Il-6 cascade. Overall design: Examination of mRNAs from proliferative, quiescent (serum starvation) and Rapamycin (5oonM, 5days) treated 2DD normal human dermal/foreskin fibroblasts.
Concordance between RNA-sequencing data and DNA microarray data in transcriptome analysis of proliferative and quiescent fibroblasts.
No sample metadata fields
View SamplesInner ear auditory and vestibular tissues differ in their responses to mechanical stimuli.
Distinct energy metabolism of auditory and vestibular sensory epithelia revealed by quantitative mass spectrometry using MS2 intensity.
Specimen part
View SamplesDevelopment requires the cooperation of tissue-specific and ubiquitously expressed transcription factors, such as Sp-family members. However, the molecular details of how ubiquitous factors participate in developmental processes are still unclear. We previously showed that during the differentiation of embryonic stem cells lacking Sp1 DNA binding activity (Sp1deltaDBD/deltaDBD cells), early blood progenitors are formed. However, gene expression during differentiation becomes progressively deregulated and terminal differentiation is severely compromised. Here we studied the cooperation of Sp1 and its closest paralogue Sp3 in hematopoietic development and demonstrate that Sp1 and Sp3 binding sites largely overlap. Sp3 cooperates with Sp1deltaDBD/deltaDBD but is unable to support hematopoiesis in the complete absence of Sp1. Using single cell gene expression analysis, we show that the lack of Sp1 DNA binding leads to a distortion of cell fate decision timing, indicating that stable chromatin bi nding of Sp1 is required to maintain robust differentiation trajectories. Overall design: RNA-Seq in ESC, Flk, HE1, HE2 and progenitor cells with WT, Sp1deltaDBD or Sp3KO
Robust hematopoietic specification requires the ubiquitous Sp1 and Sp3 transcription factors.
Specimen part, Cell line, Subject
View SamplesFN044, FN211, FN242 and FN303 are the fast neutron generated mutants in cv. Steptoe background. These 4 mutants have lesion mimic phenotype and increase disease resistance to stem rust. ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, ling zhang. The equivalent experiment is BB54 at PLEXdb.]
A cation/proton-exchanging protein is a candidate for the barley NecS1 gene controlling necrosis and enhanced defense response to stem rust.
Specimen part
View SamplesDevelopment requires the cooperation of tissue-specifically and ubiquitously expressed transcription factors, such as Sp-family members. However, the molecular details of how ubiquitous factors participate in developmental processes are still unclear. We previously showed that during the differentiation of embryonic stem cells lacking Sp1 DNA binding activity (Sp1DDBD/DDBD cells), early blood progenitors are formed. However, gene expression during differentiation becomes progressively deregulated and terminal differentiation is blocked. Here we studied the cooperation of Sp1 and its homologue Sp3 in hematopoietic development and demonstrate that Sp1 and Sp3 binding sites largely overlap. Sp3 cooperates with Sp1DDBD/DDBD cells but is unable to support hematopoiesis in the complete absence of Sp1. Using single cell gene expression analysis, we show that the lack of Sp1 DNA binding leads to a distortion of cell fate decision timing, indicating that stable chromatin binding of Sp1 is required to maintain robust differentiation trajectories. Overall design: Chromium 10X - Single-cell RNA-seq of Sp1 wild-type and Sp1 DNA binding domain mutant cells
Robust hematopoietic specification requires the ubiquitous Sp1 and Sp3 transcription factors.
Specimen part, Subject
View SamplesSystems biology has the potential to identify gene signatures associated with vaccine immunogenicity or protective efficacy. The main objective of our study was to identify optimal post-vaccination time points for evaluating blood RNA-expression profiles in recipients of the candidate tuberculosis vaccine M72/AS01. In this phase II open-label study (NCT01669096), healthy Bacillus Calmette-Gurin (BCG)-primed, HIV-negative adults were administered two doses (30-days apart) of M72/AS01. Blood samples were collected pre-dose 1, pre-dose 2 and 1, 7, 10, 14, 17 and 30 days post-dose 2. RNA expression in blood and peripheral-blood mononuclear cells (PBMCs) was quantified using microarray technology. The data analysis used as a reference, a PBMC-gene signature that was associated with the protective efficacy of a similarly adjuvanted candidate malaria vaccine. Peripheral-blood CD4+ T-cell reactivity, serum interferon-gamma (IFNG) concentrations and safety were also assessed. Twenty subjects completed the study and 18 subjects received two doses. The observed safety profile was similar to previous trials. Serum IFNG responses and M72-specific CD4+ T cell responses to vaccination were detected as expected, based on previous trial experience. PBMC and whole-blood RNA-expression data at day 14 post-dose 2 relative to pre-vaccination and whole-blood RNA-expression data at 7, 10, and 17 days post-dose 2 relative to pre-vaccination could be used to classify vaccine recipients into gene-signature positive or gene-signature negative groups. In conclusion, whole blood sampled from the 7, 10, 14, or 17 day post-vaccination time points, in addition to pre-vaccination, could be selected to assess potentially clinically relevant responses to M72/AS01 using transcriptome analysis.
Adjuvant-Associated Peripheral Blood mRNA Profiles and Kinetics Induced by the Adjuvanted Recombinant Protein Candidate Tuberculosis Vaccine M72/AS01 in Bacillus Calmette-Guérin-Vaccinated Adults.
Specimen part, Subject
View SamplesThe incidence and mortality rates of prostate cancer are significantly higher in African-American men when compared to European-American men. We tested the hypothesis that differences in tumor biology contribute to this survival health disparity. Using microarray technology, we obtained gene expression profiles of primary prostate tumors resected from 33 African-American and 36 European-American patients. These tumors were matched on clinical parameters. We also evaluated 18 non-tumor prostate tissues from 7 African-American and 11 European-American patients. The resulting datasets were analyzed for expression differences on the gene and pathway level comparing African-American with European-American patients. Our analysis revealed a significant number of genes, e.g., 162 transcripts at a false-discovery rate less than 5%, to be differently expressed between African-American and European-American patients. Using a disease association analysis, we identified a common relationship of these transcripts with autoimmunity and inflammation. These findings were corroborated on the pathway level with numerous differently expressed genes clustering in immune response, stress response, cytokine signaling, and chemotaxis pathways. Furthermore, a two-gene tumor signature was identified that accurately differentiated between African-American and European-American patients. This finding was confirmed in a blinded analysis of a second sample set. In conclusion, the gene expression profiles of prostate tumors indicate prominent differences in tumor immunobiology between African-American and European-American men. The profiles portray the existence of a distinct tumor microenvironment in these two patient groups.
Tumor immunobiological differences in prostate cancer between African-American and European-American men.
Race
View SamplesThis SuperSeries is composed of the SubSeries listed below.
DNA Methylation Changes in Lung Immune Cells Are Associated with Granulomatous Lung Disease.
Sex, Age, Treatment, Race
View Samples