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SRP010034
Drosophila melanogaster
2 Downloadable Samples
Illumina Genome Analyzer IIx
Description
We are submitting two small RNA libraries derived from ovarian tissue of mutant and heterozygous for the Kumo/Qin gene, required for the piRNA production in germline cells. In absence of Kumo/Qin, piRNA production is reduced and transposons are derepressed. Overall design: Analysis of piRNA production in Kumo/Qin mutants
Publication Title
The tudor domain protein kumo is required to assemble the nuage and to generate germline piRNAs in Drosophila.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Mus musculus
- 2 Downloadable Samples
- NextSeq 500
Description
Mutations in the RNA splicing complex member SRSF2 are found frequently in myelodysplastic syndrome and related malignancies such as chronic myelomonocytic leukemia. These mutations cluster on proline 95, with P95H the most frequent. How SRSF2P95H mutations modify hematopoiesis and promote MDS/MPN development is not clear. We have established a conditionally activatable Srsf2P95H/+ knock-in allele which, when expressed within the hematopoietic stem cell populations caused profound myeloid bias, at the expense of erythroid and lymphoid cells, and a reduced frequency and competitive repopulation of HSCs. Long-term aging of Srsf2P95H/+ resulted in the development of MDS/MPN characterised by myeloid dysplasia and monocytosis. Reproducible key phenotypic features make this a mouse model suitable for mechanistic and preclinical MDS sudies. Overall design: RNAseq of whole bone marrow in vivo tamoxifen treated R26CreERT2 Srsf2 P95H generated by deep sequencing, using Illumina NextSeq500
Publication Title
<i>Srsf2</i><i><sup>P95H</sup></i> initiates myeloid bias and myelodysplastic/myeloproliferative syndrome from hemopoietic stem cells.
Sample Metadata Fields
Sex, Age, Specimen part, Subject
View Samples- Homo sapiens
- 15 Downloadable Samples
- Illumina HiSeq 2500
Description
How cells in primary tumors initially become pro-metastatic is not understood. A previous genome-wide RNAi screen uncovered colon cancer metastatic suppressor and WNT promoting functions of TMED3, a member of the p24 ER-to-Golgi protein secretion family. Repression of WNT signaling upon knock-down (kd) of TMED3 might thus be sufficient to drive metastases. However, searching for transcriptional influences on other family members here we find that TMED3 kd leads to enhanced TMED9, that TMED9 acts downstream of TMED3 and that TMED9 kd compromises metastasis. Importantly, TMED9 pro-metastatic function is linked to but distinct from the repression of TMED3-WNT-TCF signaling. Functional rescue of the migratory deficiency of TMED9 kd cells identifies TGFa as a mediator of TMED9 pro-metastatic activity. Moreover, TMED9 kd compromises the membrane localization, and thus function, of TGFa. Analyses in three colon cancer cell types highlight a TMED9-dependent gene set that includes CNIH4, a member of the CORNICHON family of TGFa exporters. Our data indicate that TGFA and CNIH4, which display predictive value for disease-free survival, promote colon cancer cell metastatic behavior and suggest that TMED9 pro-metastatic function involves the modulation of the secretion of TGFa ligand. Finally, TMED9/TMED3 antagonism impacts WNT-TCF and GLI signaling, where TMED9 primacy over TMED3 leads to the establishment of a positive feedback loop together with CNIH4, TGFa and GLI1 that enhances metastases. We suggest that primary colon cancer cells can transition between two states characterized by secretion-transcription regulatory loops gated by TMED3 and TMED9 that modulate their metastatic proclivities. Overall design: CC14 and CC36, two primary colon cancer cells, were treated with control or shTMED9 expressing lentivirus. In addition, CC14 cells were also treated with shTMED3 expressing lentivirus. All the experiments were run in triplicates totaling 15 Samples.
Publication Title
The protein secretion modulator TMED9 drives CNIH4/TGFα/GLI signaling opposing TMED3-WNT-TCF to promote colon cancer metastases.
Sample Metadata Fields
Specimen part, Disease stage, Subject
View Samples- Mus musculus
- 15 Downloadable Samples
- Illumina HiSeq 2500
Description
We applied previously established in silico whole-embryo body (WB)-subtraction-based approach to identify “lens-enriched” genes. These new RNA-seq datasets on embryonic stages E10.5, E12.5, E14.5 and E16.5 confirmed high expression of established cataract-linked genes and identified several new potential regulators in the lens. Finally, we present lens stage-specific UCSC Genome Brower annotation-tracks; these are publicly accessible through iSyTE (https://research.bioinformatics.udel.edu/iSyTE/) and enable a user-friendly visualization of lens gene expression/enrichment to help prioritize genes from high-throughput data from cataract cases. Overall design: RNA-sequencing datasets of microdissected embyonic eye lens samples from stages embryonic day E10.5, E12.5, E14.5 and E16.5 were generated. To estimate lens enriched genes we generated control “whole-embryo body (WB)” datasets. The lens enriched genes were used for enrichment level based clustering to identify gene clusters exhibiting distinct lens enrichment patterns across E10.5 to E16.5 developmental window. This new lens RNA-seq data and its accessibility through iSyTE 2.0 serves as a new integrative resource for prioritization of lens defects and/or cataract-linked candidate genes identified by other high-throughput analyses such as exome-seq and GWAS.
Publication Title
RNA sequencing-based transcriptomic profiles of embryonic lens development for cataract gene discovery.
Sample Metadata Fields
Cell line, Subject
View Samples- Mus musculus
- 12 Downloadable Samples
- Illumina HiSeq 2500
Description
Overview: We report here that gene expression in E13.5 wild type (WT) mouse lenses differs from the lenses of mice that conditionally lack the Prox1 transcription factor in the lens of their eyes (Prox1 cKO) as assayed by high throughput RNA sequencing (RNAseq). The methodology outlined herein is similar to a previous RNAseq experiment from our lab (Manthey et al., 2014a)(Geo ascension: GSE 49949), and the filtering and processing criteria for this experiment was published as well.(Manthey et al., 2014b). The mammalian lens is notable for its biased gene expression, where 90% of the observed protein is expressed by just 50 genes. RNAseq was employed to sequence past these highly expressed lens structural genes and report the relative abundance of both high and low expression genes. In this study we demonstrated that 642 genes were differentially expressed in the lenses of Prox1 cKOs as compared to WT lenses. These data were analyzed using the DAVID biostatical analysis package and we found that the expression of lens specific proteins, as well as cytoskeletal genes and genes that regulated the cytoskeleton were expressed at lower levels in Prox1 cKOs. This analysis showed that the expression of genes encoding extracellular matrix components and their regulators, as well as cell adhesion increased in Prox1 cKO lenses when compared to WTs. Description of Filtering Criteria: Our initial analysis identified 5,492 genes that were differentially expressed in Prox1 cKO lenses as compared to WTs as computed by Pair-wise qCML method exact tests with a Benjamini Hochberg false discovery rate correction greater than the threshold of P < 0.05. As we described previously, there is significant variation in gene expression between inbred C57Bl/6 <har> and mice with a mixed background below a threshold of 2.5 fold. For this reason we filtered out all genes whose differential expression was less than 2.5 fold. We also wanted to filter out genes that were expressed at such low levels that they were unlikely to impact cellular function. We restricted our list to those genes that were expressed at greater than 2 Reads per Kilobase per million reads (RPKM) in either WT or Prox1 cKO samples, a value which corresponds to approximately 1 mRNA molecule per cell. The application of these filtering criteria resulted in narrowing our list to 642 genes that were likely to impact the Prox1 cKO lens phenotype. Manthey, A. L., Lachke, S. A., FitzGerald, P. G., Mason, R. W., Scheiblin, D. A., McDonald, J. H. and Duncan, M. K. (2014a) ''Loss of Sip1 leads to migration defects and retention of ectodermal markers during lens development'', Mech Dev 131: 86-110. Manthey, A. L., Terrell, A. M., Lachke, S. A., Polson, S. W. and Duncan, M. K. (2014b) ''Development of novel filtering criteria to analyze RNA-sequencing data obtained from the murine ocular lens during embryogenesis'', Genom Data 2: 369-374. Overall design: RNA-Seq comparison of C57Bl/6 <har> wild type controls and Prox1 conditional knockout lenses at E13.5
Publication Title
Prox1 and fibroblast growth factor receptors form a novel regulatory loop controlling lens fiber differentiation and gene expression.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 9 Downloadable Samples
- Illumina HiSeq 2500
Description
ß1-integrin is the major ß-integrin subunit expressed in both lens epithelial and fiber cells. Our previous research indicated that ß1-integrin is essential for the maintenance of lens epithelial integrity and survival in late embryonic lens development (Simirskii et al, 2009). Lack of ß1-integrin in the lens will lead to severe micropthalmia and lack of lens in adult mice. In order to study the mechanisms involved, high throughput RNA sequencing (RNAseq) was performed to determine the genes that are differentially expressed between E15.5 wild type (WT) lenses and lenses that lack ß1-integrin expression due to the action of MLR10 CRE (ß1-cKO). The methodology used here is similar to the other RNAseq experiments that were previously performed in our lab (Manthey et al., 2014a and Audette et al, 2015) (Geo accession: GSE 49949 and GSE69940) . Meanwhile, the filtering criteria and processing procedures were also published (Manthey et al., 2014b). Compared to WT, 120 genes were found to be differentially expressed in ß1-cKO lenses. Moreover, bioinformatics tools (DAVID (the database for Annotation, Visulization and Integrated Discovery), and PANTHER (Protein Analysis through Evolutionary Relationship) classification system) as well as manual literature searching was applied for further data analysis. It showed that genes involved in EMT and stress-responses were differentially expressed in ß1-cKO compared to that of WT. Description of filtering criteria: To identify the differentially expressed genes, pair-wise qCML method exact tests with a Benjamini Hochberg false discovery rate correction greater than the threshold of P<0.05 was applied, which identified 5120 genes. As previously described (Manthey et al., 2014b), most of the genes differentially expressed between inbred C57Bl/6 <har> and mice with a mixed background were below a threshold of 2.5 fold change. Therefore, all differentially expressed genes with a less than 2.5 fold change were filtered out. Further, genes whose expression level were not high enough to be biologically significant were also filtered out, based on the RPMK (Reads per Kilobase per million reads) value. Any gene in the final list has RPKM greater that 2 in either WT or ß1-cKO samples, a value that corresponds to approximately 1 mRNA molecule per cell. By applying a combination of these filtering criteria, 120 differentially expressed genes were found, which could potentially elucidate the molecular connections between conditional deletion of ß1-intergrin from the lens and the observed phenotypic abnormalities. Manthey, A. L., Lachke, S. A., FitzGerald, P. G., Mason, R. W., Scheiblin, D. A., McDonald, J. H. and Duncan, M. K. (2014a) ''Loss of Sip1 leads to migration defects and retention of ectodermal markers during lens development'', Mech Dev 131: 86-110. Manthey, A. L., Terrell, A. M., Lachke, S. A., Polson, S. W. and Duncan, M. K. (2014b) ''Development of novel filtering criteria to analyze RNA-sequencing data obtained from the murine ocular lens during embryogenesis'', Genom Data 2: 369-374. Overall design: RNA-Seq comparison of C57Bl/6 <har> wild type controls and ß1-integrin conditional knockout lenses at E15.5, three biological replicates were used in each group
Publication Title
β1-Integrin Deletion From the Lens Activates Cellular Stress Responses Leading to Apoptosis and Fibrosis.
Sample Metadata Fields
Specimen part, Subject
View Samples- Rattus norvegicus
- 26 Downloadable Samples
Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
This study was designed to provide additional insight into testicular hormone production and responsiveness in the orl strain and complement ongoing efforts to characterize the genetic basis of cryptorchidism in this isolated rat colony.
Publication Title
Cryptorchidism in the orl rat is associated with muscle patterning defects in the fetal gubernaculum and altered hormonal signaling.
Sample Metadata Fields
Specimen part
View Samples- Bos taurus
- 16 Downloadable Samples
- Affymetrix Bovine Genome Array (bovine)
Description
Bone morphogenetic proteins (BMP) are firmly implicated as intra-ovarian regulators of follicle development and steroidogenesis. We carried out a microarray analysis to examine global changes in gene expression in bovine theca cells in response to treatment with BMP6 alone and in combination with LH. There was a major effect of BMP6 treatment on the gene expression profile with a much weaker effect of LH. None of these differences in response to LH treatment was found to be statistically significant after applying Benjamini-Hochberg correction. BMP6 significantly (>2-fold; P<0.01) up- or down-regulated expression of 445 genes. Insulin-like peptide 3 (INSL3) was the most heavily down-regulated gene (-43-fold) with CYP17A1 and other key transcripts involved in TC steroidogenesis including LHCGR, INHA, STAR, CYP11A1 and HSD3B1 also down-regulated. BMP6 also reduced expression of NR5A1 encoding steroidogenic factor-1 known to target the promoter regions of the aforementioned genes. Real-time PCR confirmed these findings and also revealed a marked reduction in expression of INSL3 receptor (RXFP2). Secretion of INSL3 protein and androstenedione were also suppressed suggesting a functional link between BMP and INSL3 pathways in controlling androgen synthesis.
Publication Title
Functional link between bone morphogenetic proteins and insulin-like peptide 3 signaling in modulating ovarian androgen production.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
MicroRNA target prediction by expression analysis of host genes.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 6 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
Total RNA samples from three biological replicates in which the hsa-mir-26b was overexpressed in HeLa cells were profiled by gene expression. As negative control, we used total RNA samples from HeLa cells transfected with cel-mir-67
Publication Title
MicroRNA target prediction by expression analysis of host genes.
Sample Metadata Fields
No sample metadata fields
View Samples